Segui questo link per vedere altri tipi di pubblicazioni sul tema: Producer profile.
Tesi sul tema "Producer profile"
Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili
Vedi i top-50 saggi (tesi di laurea o di dottorato) per l'attività di ricerca sul tema "Producer profile".
Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.
Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.
Vedi le tesi di molte aree scientifiche e compila una bibliografia corretta.
1
Souza, Leonor Venson de. "Análise do uso de controles e gestão financeira em propriedades rurais produtoras de grãos da Região Oeste do Paraná". Universidade Estadual do Oeste do Parana, 2016. http://tede.unioeste.br:8080/tede/handle/tede/852.
Testo completoAbstract (sommario):
Made available in DSpace on 2017-07-10T16:05:03Z (GMT). No. of bitstreams: 1
Leonor_Souza-v1.pdf: 4735894 bytes, checksum: ac5321523593c495313137ad20bbe9f5 (MD5)
Previous issue date: 2016-09-19Taking into account the economical aspects in the agricultural area in Brazil from the last decades and also the performance from the grains production broadcasted by official records, this agricultural sector has been drawing attention to many researches and showing a total lack of proper financial management.Given the importance of financial management and controls and also by analyzing the situation on the country land where the rural producers have been dedicating more time to things related to production than to financial management which demands more assertive decisions that are essential to the maintenance of those rural enterprises and also considering the lack of proper management of the agricultural areas, the objective of this study was to analyze the use of controls and financial management in grain production rural areas from the west of Parana State in Brazil. We have divided a study in two different steps; first we have made an structured survey in 80 rural producers in the West of Parana, from October 2015 to February 2016, about the use of controls and financial management done by the producers. On the second step, we have shown to 10 of those who participated on the survey a proposal of a system of information on cash flow. Inspired by an accounting model which was adapted for this system and it was applied to 10 of those properties between the months of February and July in 2016. The study, that was descriptive and qualitative, was based on literature review and on periodicals identified in researches and surveys based on specialized bibliographies and in libraries. The results from the first step showed an absence of controls and financial management in the surveyed rural properties , regardless of the technological information and communication advancements, many decisions are still based in empirical knowledge and the systems of financial managements are rarely used and restrict. The use of a system of information of cash flow in the rural activity, on the second step, pointed out innumerous benefits such as control of expenses and the analysis of results, among others, was only possible to be estimated by the rural manager. Considering the advancements in the use of technology of information and better access to the internet in the country, new researches can contribute to foster management techniques in the rural field such as distance learning and the development of tools that can be more proper to the profile of the rural producers
Considerando o crescimento econômico do setor agrícola no Brasil registrado nas últimas décadas e o desempenho da produção de grãos divulgado por organismos oficiais o setor agrícola vem chamando atenção por diversas pesquisas demonstrando um setor ainda carente de práticas de gestão financeira. Dada a importância dos controles e gestão financeira e analisando a realidade do campo onde o produtor rural tem dedicado maior tempo aos aspectos relacionados à produção do que à gestão financeira exigindo decisões mais assertivas e essenciais para a manutenção dos empreendimentos rurais e considerando a escassez de práticas de gestão adequadas ao setor do agronegócio este estudo teve como objetivo analisar o uso de controles e gestão financeira em propriedades rurais produtoras de grãos da região Oeste do Paraná. Dividiu-se o estudo em duas etapas: na primeira, levantou-se, por meio de entrevista estruturada aplicada a 80 produtores rurais da região Oeste do Paraná, no período de outubro de 2015 a fevereiro de 2016, o uso de controles e gestão financeira pelos produtores. Na segunda etapa, apresentou-se a 10 propriedades rurais participantes da pesquisa uma proposta de utilização de um sistema de informação de fluxo de caixa. Inspirado em um modelo contábil, se adaptou esse sistema, que foi aplicado a essas 10 propriedades entre os meses de fevereiro e julho de 2016. O estudo, que foi descritivo e cuja análise, qualitativa, fundamentou-se na revisão da literatura e em periódicos identificados em pesquisas realizadas em bases bibliográficas especializadas e nas bibliotecas. Os resultados da primeira etapa demonstraram a ausência de controles e gestão financeira nas propriedades rurais pesquisadas, apesar dos avanços evidenciados no uso da tecnologia da informação e comunicação, como também que muitas decisões ainda são pautadas em conhecimentos empíricos e que sistemas de gestão financeira são pouco utilizados e restritos. A utilização de um sistema de informações de fluxo de caixa na atividade rural, na segunda etapa, apontou inúmeros benefícios, como o controle dos gastos e a análise dos resultados, entre outros, antes apenas estimados pelo produtor rural. Considerando os avanços no uso da tecnologia de informação e o maior acesso à Internet no campo, novas pesquisas poderão contribuir no sentido de implementar práticas de gestão financeira na atividade rural, tais como o ensino a distância e o desenvolvimento de ferramentas mais adequadas ao perfil do produtor rural.
2
OLIVEIRA, Sabrina da Costa de. "O perfil das cooperativas leiteiras fluminenses e a ado??o de pr?ticas ambientais conservacionistas". Universidade Federal Rural do Rio de Janeiro, 2014. https://tede.ufrrj.br/jspui/handle/jspui/1688.
Testo completoAbstract (sommario):
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-05-26T19:30:47Z
No. of bitstreams: 1
2014 - Sabrina da Costa de Oliveira.pdf: 7923454 bytes, checksum: 7e0abeab415ea68ffa06cabc394dceeb (MD5)Made available in DSpace on 2017-05-26T19:30:47Z (GMT). No. of bitstreams: 1 2014 - Sabrina da Costa de Oliveira.pdf: 7923454 bytes, checksum: 7e0abeab415ea68ffa06cabc394dceeb (MD5) Previous issue date: 2014-12-22
Given the importance of the Rio dairy farming and aimed at ensuring the sustainability of the activity in the state of Rio de Janeiro, as well as the satisfaction and well-being of the producer, it is essential to develop policies and incentive programs created by state government in partnership with the Rio de Janeiro dairy cooperatives. These partnerships can promote effective actions and boosters, to develop the technical assistance activities and placement of information directed to the adoption of a set of conservation practices that ensure environmental sustainability of the activity. This study aimed to identify and characterize the fluminense dairy cooperatives registered in the system OCB / SESCOOP-RJ, diagnosing the availability of technical assistance from these, the average volume of milk picked up monthly, the adoption of soil conservation practices and feelings and ideas of producers regarding the use of conservation techniques in environmental terms. The work was carried out in the North /Northwest; Mountain and South Central regions of Rio de Janeiro estate, through semi-structured interviews with 14 administrative managers from 14 different cooperatives located in 12 municipalities in the state, as well as a total of 21 producers of 3 selected cooperatives. For these same cooperative focus group meetings were held by the 109 cooperative of three municipalities on different dates. It was identified by the diagnosis that dairy cooperatives registered until the month of December 2011 represent 10% of all registered cooperatives in the OCB / SESCOOP-RJ System, but this total only 4% is in full operation. It was found that the highest average monthly volumes of milk received by cooperating, in the considered period of study, are related to cooperatives who reported participating in rational use of natural resources programs, developed in partnership with the State Technical Assistance Company (EMATER - RJ). In both Regions were identified that cooperative farmers using soil conservation techniques, but require instruction on the importance of adopting a set of practices for the system sustainability production. Due to a deficient information system by the cooperatives, producers demonstrate the need for information tools availability for sharing the experiences and ideas that encourage the adoption of these environmental practices.
Diante da relev?ncia da pecu?ria leiteira fluminense e visando a garantia da sustentabilidade da atividade no estado do Rio de Janeiro, assim como a satisfa??o e o bem estar do produtor, torna-se indispens?vel o desenvolvimento de pol?ticas e programas de incentivos criados pelo governo do estado em parcerias com as cooperativas leiteiras fluminenses, para que atrav?s destas parcerias possam ser promovidas a??es efetivas e incentivadoras, que desenvolvam as atividades de assist?ncia t?cnica e veicula??o de informa??es direcionadas ? ado??o de um conjunto de pr?ticas ambientais conservacionistas que garantam a sustentabilidade da atividade. Este trabalho teve como objetivo identificar e caracterizar as cooperativas leiteiras fluminenses registradas no Sistema OCB/SESCOOP-RJ, diagnosticando a disponibilidade de assist?ncia t?cnica por parte destas, o volume m?dio de leite captado mensalmente, a ado??o de pr?ticas de conserva??o do solo e os sentimentos e ideias dos produtores quanto ao uso de t?cnicas conservacionistas em termos ambientais. O trabalho foi realizado nas regi?es Norte /Noroeste; Serrana e Centro Sul fluminense, por meio de entrevistas semiestruturadas ? 14 gestores administrativos de 14 cooperativas distintas localizadas em 12 munic?pios do estado, bem como ? um total de 21 produtores de 3 cooperativas selecionadas. Para estas mesmas cooperativas foram realizadas reuni?es de grupo focal junto ? 109 cooperados de 3 munic?pios em datas distintas. Identificou-se por meio do diagn?stico que as cooperativas leiteiras registradas at? o m?s de dezembro de 2011 representam 10% do total de cooperativas registradas no Sistema OCB/SESCOOP-RJ, por?m deste total apenas 4 % encontra-se em pleno funcionamento. Foi detectado que os maiores volumes m?dios mensais de leite captado por cooperado, no per?odo de estudo considerado, est?o relacionados ?s cooperativas que declararam participar de programas de uso racional dos recursos naturais, desenvolvidos em parceria com a Empresa de Assist?ncia T?cnica do Estado (EMATER ? RJ). Em ambas as regi?es foram constatadas que os produtores cooperados utilizam t?cnicas de conserva??o do solo isoladamente ou a associa??o de duas ou mais destas, por?m demandam de instru??es sobre a import?ncia da ado??o de um conjunto das pr?ticas visando ? sustentabilidade do sistema de produ??o. Em decorr?ncia do resultado de um sistema de informa??es deficientes por parte das cooperativas, os produtores demonstram a necessidade da disponibilidade de ferramentas de divulga??o, compartilhamento de experi?ncias e ideias que estimulem a ado??o destas pr?ticas.
3
Le, coz Corentin. "Separation and Poincaré profiles Separation profiles, isoperimetry, growth and compression Poincaré profiles of lamplighter diagonal products". Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASM014.
Testo completoAbstract (sommario):
Ce manuscrit de thèse récapitule mes travaux de recherche sur les profils de séparation et de Poincaré. Le profil de séparation est apparu en 2012 dans un l'article fondateur de Benjamini, Schramm et Timár. La définition donnée tirait ses origines dans des travaux antérieurs, dans le domaine du calcul formel : principalement des études de Lipton et Trajan concernant les graphes planaires, et de Miller, Teng, Thurston et Vavasis concernant des graphes d'intersection. Le profil de séparation est maintenant utilisé en théorie géométrique des groupes, mon domaine de recherche, à cause de sa propriété de monotonie par plongements grossiers. Il a été généralisé par Hume, Mackay et Tessera en 2019 en une gamme continue de profils, appelés profils de PoincaréThe goal of this thesis report is to present my research concerning separation and Poincaré profiles. Separation profile first appeared in 2012 in a seminal article written by Benjamini, Schramm and Timár. This definition was based on preceding research, in the field of computer science, mainly work of Lipton and Trajan concerning planar graphs, and of Miller, Teng, Thurston and Vavasis concerning overlap graphs. The separation profile plays now a role in geometric group theory, where my personal interests lies, because of its property of monotonicity under coarse embeddings. It was generalized by Hume, Mackay and Tessera in 2019 to a spectrum of profiles, called the Poincaré profiles
4
Lax, S. E. "Refractive index profiles produced by ion implantation in insulators". Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377075.
Testo completo
5
Low, Tyrone. "The Development of a Low Profile Alpine Touring Binding". Thesis, University of Canterbury. Mechanical Engineering, 2010. http://hdl.handle.net/10092/5198.
Testo completoAbstract (sommario):
The design of alpine touring ski bindings has remained relatively static for the past fifteen years. During this period, the lack of innovative breakthroughs has become obvious through the number of customers who are currently unsatisfied by the products available on the market. This observation has presented a significant commercial opportunity to satisfy these users, plus many more non-consumers, with an innovative binding design. The objective of this project was to design a low profile alpine touring binding with the aim of satisfying the needs of these users.
The resulting design followed a full year of research and development in the field of alpine touring bindings. Not only were concepts formed from completely untethered and open minded thinking, but they were also formed from reviewing various designs that already existed. These designs ranged from previous alpine touring bindings that either failed or succeeded in the market for various reasons, to completely unrelated mechanisms and designs forms. Through this process, several well formed and feasible design concepts were obtained which potentially met the design specification requirements of both high performing alpine touring bindings and downhill bindings. Detailed design and analysis followed, along with the manufacture of a fully functional prototype. This was then tested and evaluated to determine the project as a success.
This project can be grouped only with a small amount of research ever conducted on the topic of alpine touring bindings. The findings, discussion and results of this work can therefore be used as a benchmark for future study into this field. Through the meticulous research conducted on skiing and ski bindings and the thorough design work carried out towards producing a prototype, this thesis presents the complete process of designing a new and innovative ski binding.
6
BENGTSSON, SOFIE, e EBBA HASSELSTRÖM. "Differentiering : en avgörande faktor? En studie om Blåkläders profilsortiment". Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20427.
Testo completoAbstract (sommario):
Problembakgrund: Marknaden för profilkläder består idag av många aktörer, företag medfokus på enbart profilkläder och företag som huvudsakligen fokuserar på yrkeskläder. Detskapas en viss problematik inom profilbranschen som ligger i hur företag väljer att profilerasitt företag. Kläder som skulle kunna fungera som profilplagg finns tillgängligt i helakonfektionsbranschen och detta leder till en stor och splittrad profilklädesmarknad. Dåaktörerna är många och därmed också företagens val av profilering blir det alltmer viktigt förföretag att hitta nya idéer och lösningar för att följa med i konkurrensen. Uppdraget ochutgångspunkten i studien har varit att redogöra hur en framtida utveckling avkonfektionsföretaget Blåkläders profilsortiment skulle kunna se ut.Syfte: Vårt övergripande syfte med studien är att undersöka och kartlägga Blåklädersprofilsortiment. Syftet med uppsatsen är även att undersöka hur man kan användadifferentiering som ett verktyg vid sortimentsutveckling samt att ge förslag till hur Blåklädersprofilsortiment kan utvecklas.Metod: Studien har utförts genom en kvalitativ undersökning. Vårt empiriska material bestårav intervjuer med konkurrenter för att granska hur företaget Blåkläder står sig gentemot dessa.Vidare har vi gjort en undersökning med slutkunder där slumpvis utvalda företag tillfrågats.Teoretisk referensram: Vi har valt att använda oss av olika modeller och teorier för attkunna uppnå studiens syfte; Porters femkraftsmodell, konkurrentanalys,produktkonceptmodellen samt Swot-analys.Analys och slutsats: Studiens slutsatser visar att de belysta företagens profilsortimentinnehåller liknande produkter, men skiljer sig åt vad det gäller design, bredd och paketering avsortimentet. Företaget Fristads har valt att benämna sortimentet med ett eget varumärkesnamnoch skapat en tydlig differentiering på marknaden. Björnkläder har också valt att namnge delarav sortimentet, men de har inte gjort en tydlig paketering av sortimentet. Utifrån studiensresultat presenterades möjligheter för Blåkläder att utveckla sitt profilsortiment. Möjlighetersåsom att göra en tydligare produktdifferentiering, att skapa ett unikt koncept som skiljer sigfrån konkurrenter, hitta kärnan och en röd tråd i sortimentet, och skapa plagg med bättrepassform då detta efterfrågas av slutkunderna. Företag kan, oavsett i vilken bransch manverkar, tillämpa differentiering som ett verktyg vid sortimentsutveckling.Sammanfattning på engelska: Background and problem discussion: The market of profile clothing consists of differentactors; companies that only produce profile clothing and companies that produce bothprofile clothing and work wear. A common issue in the profile market is how companieschoose to profile their company. There are many products in the clothing industry that couldact as profile clothes. That is why the market for profile clothing today is fragmented.Because of the large amount of actors it is important to find new ideas and solutions forcompanies to develop their assortment of profile clothing. The starting point of this paperwas to give suggestions and describe how a future range of products for Blåkläder wouldlook like.Purpose: The purpose of this paper was to study and analyze the profile assortment ofBlåkläder. Moreover the purpose was also to analyze how to use product differentiation todevelop the assortment. We also wanted to give Blåkläder suggestions regarding how todevelop their profile assortment.Method: This paper has been based on a qualitative research. The empirical researchconsists of interviews with competitors of Blåkläder. The paper also includes a researchwith final costumers.Theoretical frame of reference: To achieve the purpose of this paper we have usedseveral models and theories; the five forces (Porter), competitor analysis, product conceptmodel and a swot-analysis.Analysis and conclusions: The conclusion presents possibilities for Blåkläder regardinghow to develop their profile assortment. We believe that product differentiation is one ofthe most important steps in this process. It is critical for Blåkläder to find a unique conceptand to find a main thread through the assortment. The result from our survey shows thatthere is a demand for more fitted profile clothing. Furthermore, companies regardless ofwhat kind of industry they are in can apply differentiation in the work to develop anassortment.Program: Textil produktutveckling med entreprenörs- och affärsinriktning
7
Wojtczuk, Alicja. "Creative product assessment in design : Influence of judges’ backgrounds and levels of experience in design". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM3033/document.
Testo completoAbstract (sommario):
L'objectif général de cette thèse est d'étudier l'évaluation de la créativité dans le domaine du design. Plus précisément, ce travail se centre sur l'évaluation de productions créatives en design graphique et il repose sur des méthodes complémentaires d'analyse des critères utilisés par des juges. L'approche adoptée vise à explorer les variations de jugements, dans différents contextes d'évaluation, afin d'identifier les facteurs influant sur les critères (ou les « référents évaluatifs ») qui sont pris en considération par les juges. Deux facteurs ont plus particulièrement été pris en compte : les points de vue adoptés par les juges en fonction de leur parcours professionnel (designers, directeurs artistiques, enseignants en design et public visé) et le niveau d'expertise en design (experts affirmés, experts intermédiaires et non-experts).Cette recherche a été réalisée dans différents contextes d'évaluation et elle tente d'identifier les éléments caractéristiques des jugements, selon le profil des juges émettant ces jugements. La première étude vise à comprendre les représentations mentales des juges, en explorant les critères qu'ils déclarent importants pour la créativité. La seconde étude analyse les corrélations entre les scores attribués aux productions en design sur un ensemble des critères, ainsi que les niveaux d'accords inter-juges pour chacun de ces critères. La troisième étude permet une analyse qualitative des verbalisations spontanées exprimées par des juges durant leurs évaluations de productions en designThe present thesis aims to study creativity assessments in design. More precisely, this research focuses on the evaluation of creative productions in graphic design area and it is based on complementary methods of analysis of used criteria and "evaluative referents". It aims to identify, in various assessment contexts, factors that exert an influence on the judgments of creative productions. It develops a multiple feedback approach by exploring assessments made by judges with different professional backgrounds (designers, art directors, design teachers and targeted audience) and levels of experience in design (asserted experts, intermediary experts and laypeople).The research frame includes different contexts of assessment situations and tries to capture the characteristics of judges' approaches to creativity in design, on the basis of three complementary studies. The first study focusses on judges' mental representations by exploring criteria they declare important to creativity in design. The second study allows an analysis of correlations between scores attributed to design productions with regard to different criteria as well as an analysis of inter-judge agreement on them. The third study aims to perform qualitative analyses of spontaneous verbalizations expressed by judges during their analyses of design outcomes
8
Brown, Stacy D., Loren M. Kirk e Paul Lewis. "Using Metabolomic Tools to Study Impurity Profiles in Vancomycin Products". Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/5280.
Testo completo
9
Ren, Ming. "Cultivation Optimization and Modeling for Microalgae to Produce Biodiesel". Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/265346.
Testo completoAbstract (sommario):
Microalgae has shown to be an ideal choice for biofuel industry. Algae has high oil productivity, a short growth cycle and survives in a wide variety of water sources including high salinity and waste water. For this project, four different species of marine microalgae were screened based on oil content. They were Dunaliella tertiolecta (CCMP364), Nannochloropsis gaditana (CCMP527), Tetraselmis sp (CCMP 908) and Nannochloropsis salina (CCMP1776). Experimental results showed that CCMP 527 and 1776 strains had higher lipid content and better fatty acids profile than the other two. Further investigations were carried on CCMP 527 in order to maximize biomass productivity and lipid content. Nutrients, salinity, pH, temperature, light intensity and aging of the culture can all affect both lipid content and fatty acid profile and were investigated. Nutrient stress is the easiest way to manipulate lipid composition and increase lipid content. Hence, various carbon and nitrogen sources were investigated to determine the range and amount of substrates that may be feasible for cultivation. For supplying lipid for biodiesel production, the optimum culture conditions for strain Nannochloropsis gaditana are using CO₂ enriched air bubbling, f/2-Si medium, pH control, and nitrate as the nitrogen source. Use of other fertilizers is feasible as well, however, the nitrogen source greatly affects lipid productivity, but trace amounts of organics in ground water do not.A model which predicts cell growth, nitrogen concentration, and lipid yield in batch systems is developed that is applicable for low nitrogen conditions. Plus, a sensitivity analysis of three major parameters was done to validate how variations in these key parameters affect simulation results. The fatty acid profile as a function of time was shown not to vary from mid-exponential to stationary phase. The model describes reactor behavior well, therefore it can be applied to the genus of Nannochloropsis to predict biomass yield and lipid accumulation, and be a useful tool to optimize and compare bioreactor systems for the biofuel industry. In addition, effects of nitrate and urea under repletion condition on microalgae growth, lipid yield and fatty acids profile for microalgae Nannochloropsis gaditana were investigated. Replacing nitrate by urea didn't show positive influence on lipid content and yield compared to normal medium. The major fatty acids for these two mediums were palmitic acid (C16:0) and palmitioleic acid (C16:1). Nannochloropsis gaditana still shows to be ideal candidate for biodiesel production using urea or nitrate enriched agriculture wastewater.
10
Igel, Megan Elizabeth. "The Cognitive and Linguistic Profile of Children with Autism Spectrum Disorder Who Produce Palm Reversals". Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami161886325466338.
Testo completo
11
Zschaler, Josefin, Juliane Dorow, Louisa Schöpe, Uta Ceglarek e Jürgen Arnhold. "Impact of Myeloperoxidase-derived oxidants on the product profile of human 5-Lipoxygenase". Free radical biology & medicine (2015) 85, S. 148-156, 2015. https://ul.qucosa.de/id/qucosa%3A14677.
Testo completoAbstract (sommario):
Human 5-lipoxygenase (5-LOX) oxidizes arachidonic acid to 5S-hydroperoxy-6E,8Z,11Z,14Z-eicosatetraenoic acid (5-HpETE) and leukotriene (LT) A4. In neutrophils, LTA4 is further converted to the potent chemoattractant LTB4. These cells also contain the heme enzyme myeloperoxidase (MPO), which produces several potent oxidants such as hypochlorous acid (HOCl), which are involved in pathogen defense and immune regulation. Here, we addressed the question whether MPO-derived oxidants are able to affect the activity of 5-LOX and the product profile of this enzyme. Human 5-LOX was incubated with increasing amounts of HOCl or HOBr. Afterward, arachidonic acid metabolites of 5-LOX were analyzed by reverse-phase high-performance liquid chromatography as well as by liquid chromatography-electrospray ionization-tandem mass spectrometry. The incubation of 5-LOX with the MPO-derived oxidants significantly changed the product profile of 5-LOX. Thereby, HOCl and HOBr increased the ratio of 5-H(p)ETE to 6-trans-LTB4 in a concentration-dependent manner. At low oxidant concentrations, there was a strong decrease in the yield of 6-trans-LTB4, whereas 5-HpETE did not change or increased. Additionally, the formation of 8-HpETE and 12-HpETE by 5-LOX rose slightly with increasing HOCl and HOBr. Comparable results were obtained with the MPO-H2O2-Cl– system when glucose oxidase and glucose were applied as a source of H2O2. This was necessary because of a strong impairment of 5-LOX activity by H2O2. In summary, MPO-derived oxidants showed a considerable impact on 5-LOX, impairing the epoxidation of 5-HpETE, whereas the hydroperoxidation of arachidonic acid was unaffected. Apparently, this was caused by an oxidative modification of critical amino acid residues of 5-LOX. Further work is necessary to assess the specific type and position of oxidation in the substrate-binding cavity of 5-LOX and to specify whether this interaction between 5-LOX and MPO-derived oxidants also takes place in stimulated neutrophils.
12
Zschaler, Josefin, Juliane Dorow, Louisa Schöpe, Uta Ceglarek e Jürgen Arnhold. "Impact of Myeloperoxidase-derived oxidants on the product profile of human 5-Lipoxygenase". Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-201824.
Testo completoAbstract (sommario):
Human 5-lipoxygenase (5-LOX) oxidizes arachidonic acid to 5S-hydroperoxy-6E,8Z,11Z,14Z-eicosatetraenoic acid (5-HpETE) and leukotriene (LT) A4. In neutrophils, LTA4 is further converted to the potent chemoattractant LTB4. These cells also contain the heme enzyme myeloperoxidase (MPO), which produces several potent oxidants such as hypochlorous acid (HOCl), which are involved in pathogen defense and immune regulation. Here, we addressed the question whether MPO-derived oxidants are able to affect the activity of 5-LOX and the product profile of this enzyme. Human 5-LOX was incubated with increasing amounts of HOCl or HOBr. Afterward, arachidonic acid metabolites of 5-LOX were analyzed by reverse-phase high-performance liquid chromatography as well as by liquid chromatography-electrospray ionization-tandem mass spectrometry. The incubation of 5-LOX with the MPO-derived oxidants significantly changed the product profile of 5-LOX. Thereby, HOCl and HOBr increased the ratio of 5-H(p)ETE to 6-trans-LTB4 in a concentration-dependent manner. At low oxidant concentrations, there was a strong decrease in the yield of 6-trans-LTB4, whereas 5-HpETE did not change or increased. Additionally, the formation of 8-HpETE and 12-HpETE by 5-LOX rose slightly with increasing HOCl and HOBr. Comparable results were obtained with the MPO-H2O2-Cl– system when glucose oxidase and glucose were applied as a source of H2O2. This was necessary because of a strong impairment of 5-LOX activity by H2O2. In summary, MPO-derived oxidants showed a considerable impact on 5-LOX, impairing the epoxidation of 5-HpETE, whereas the hydroperoxidation of arachidonic acid was unaffected. Apparently, this was caused by an oxidative modification of critical amino acid residues of 5-LOX. Further work is necessary to assess the specific type and position of oxidation in the substrate-binding cavity of 5-LOX and to specify whether this interaction between 5-LOX and MPO-derived oxidants also takes place in stimulated neutrophils.
13
Mirlohi, Susan. "Chemical Identification and Flavor Profile Analysis of Iodinated Phenols Produced From Disinfection of Spacecraft Drinking Water". Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/30997.
Testo completoAbstract (sommario):
The National Aeronautics and Space Administration (NASA) is considering the use of iodine for disinfection of recycled wastewater and potable water in the International Space Station (ISS). Like Chlorine and other halogen compounds, iodine can form disinfection by-products (DBPs) in the presence of organic compounds. Recycled wastewater sources proposed for reuse in the space station include laundry, urine, and humidity condensate. These contain large concentrations of iodine-demanding compounds, including phenol (Barkely et al., 1992). Therefore, the potential for the formation of iodine disinfection by-products (IDBPs) is of concern.
Based on the characteristics of the ISS recycled wastewater sources and potable water treatment system, a series of experiments was designed to evaluate the formation of IDBPs under different experimental conditions. Studies were conducted by reacting various concentrations of iodine with phenol at pH 5.5 and 8.0.Iodine concentrations of 10 and 50 mg/L and phenol concentrations of 5 and 50 mg/L were used. Reactions were monitored for up to 32 days for the formation of IDBPs. All reactions were maintained at 20 C in dark. High Performance Liquid Chromatography (HPLC) and Gas Chromatography/Mass Spectrometry (GC/MS) were used for identification and quantitative analysis of phenolic compounds. Spectrophotometry was used to monitor the iodine concentrations. Falvor Profile analysis (FPA) method was used to evaluate the odor characteristics of the phenolic compounds.
Reactions of iodine with phenol resulted in the formation of the following by-products: 2-iodophenol, 4-iodophenol, diiodophenols, and 2,4,6-triiodophenol. Most reaction conditions studied resulted in the formation of all or some of the specified iodophenols. The initial mass ratio of iodine to phenol was the major determining factor in the concentrations and types of by-products formed. The IDBPs were formed within one hour after initiation of the reactions. Extended reaction times did not lead to significant increases in the concentration of IDBPs. Under most reaction conditions, mono-subsituted phenols were detected at significantly higher concentrations than di-substituted phenolic compounds; triiodophenol was the major by-product when iodine:phenol mass ratio was 10:1. The greatest number of IDBPs were formed when reaction solutions consisted of 1:1 mass ratio of iodine to phenol. FPA panel indicated the odor threshold concentrations for phenol, 2-iodophenol, and 4-iodophenol were 5 mg/L, less than 1 ug/L, and 1 mg/L respectively. The most common odor descriptions for all these compounds were "chemical", "phenolic", and "medicinal".Master of Science
14
McCraith, Andrew D. (Andrew Douglas) 1976. "Material temperature effects on final product size for new profile ring mill forming technology". Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80512.
Testo completo
15
Meyer, Christopher John. "Material use, product profile and channels of distribution in the U.S. wood furniture industry". Thesis, Virginia Tech, 1991. http://hdl.handle.net/10919/41695.
Testo completoAbstract (sommario):
U.S. manufacturers of wood household (SIC 2511), upholstered household (SIC 2512) and wood office furniture (SIC 2521) were surveyed to assess wood materials use within these three industry segments. The final sample frame contained 5,016 manufacturing locations. This investigation also provides a profile of the types of products produced and the channels of distribution used to move these products to the final consumer from a second sample of 347 manufacturers of wood household furniture.
In 1989 the three industry segments surveyed consumed an estimated 2.3 billion board feet of hardwood lumber, 865 million board feet of softwood lumber, 1.3 billion square feet of particleboard (3/4" basis), and 370 million square feet of medium density fiberboard (3/4" basis). Further, an estimated 268 million square feet of softwood plywood (3/8" basis), 1025 million square feet of veneer and 310 million board feet of dimension stock were used in 1989 to produce wood furniture within the three industry segments examined.
Within the second sample containing solely manufacturers of wood household furniture, solid hardwood furniture was most commonly produced. Over 50% of the responding companies manufactured bedroom, dining room and occasional furniture. Responses regarding the volumes of furniture shipped through channel intermediaries revealed over 60% of sales were through manufacturer’s representatives to retailers and wholesalers. Weighted by company sales, the largest volumes of wood household furniture were sold through free-standing furniture stores (28.9% of respondent’s sales) and manufacturer’s own stores (23.4%).Master of Science
16
Pennings, Joost M. E. "Marketing x financiering product met hoog rendement en laag risico profiel /". Maastricht : Maastricht : Maastricht University ; University Library, Universiteit Maastricht [host], 2008. http://arno.unimaas.nl/show.cgi?fid=13712.
Testo completo
17
Urquhart, Paula, Susan M. Parkin e Anna Nicolaou. "Profile of eicosanoids produced by human saphenous vein endothelial cells and the effect of dietary fatty acids". Harcourt, 2009. http://hdl.handle.net/10454/4038.
Testo completoAbstract (sommario):
noHuman saphenous vein endothelial cells (HSVECs) derived from primary cultures of adult human veins constitute an excellent in vitro model for studying human endothelial metabolism. In this study we report the14C-labelled prostanoid profile of HSVECs under resting and stimulated conditions and the effect of the n-3 polyunsaturated fatty acids eicosapentaenoic acid and docosahexaenoic acid on them. Results indicate that HSVECs while under resting conditions produce mainly prostaglandin F2 ¿(PGF2 ¿). After stimulation with calcium ionophore A23187, the cells were found to synthesise PGI2, PGE2and PGF2¿as major products and thromboxane B2and PGD2as minor products. Production of14C-labelled hydroxyeicosatetraenoic acids was not detected. Eicosapentaenoic acid was found to inhibit basal and stimulated prostanoid production whereas docosahexaenoic acid inhibited basal but strongly increased stimulated prostanoid production. These results may offer the basis for further studies aiming to investigate targets for pharmacological intervention in inflammatory conditions.
18
Dodd, Jennifer Peters. "Chemical Identification and Organoleptic Evaluation of Iodine and Iodinated Disinfection By-Products Associated with Treated Spacecraft Drinking Water". Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36642.
Testo completoAbstract (sommario):
Aboard the International Space Station, potable water will likely be produced from recycled wastewater. The National Aeronautic and Space Administration (NASA) plans to use iodine as a disinfectant, and, consequently, the formation of iodinated disinfection by-products (IDBPs) requires investigation. Objectives of this research were to determine possible precursors of IDBPs, identify IDBPs formed, and apply flavor profile analysis (FPA) as a tool to evaluate water qaulity. Experiments were performed by separately reacting iodine with each of the following organic compounds: methanol, ethanol, 1-propanol, 2-propanol, 1-methoxy-2-propanol, acetone, and formaldehyde. NASA previously identified all of these compounds in wastewater sources under consideration for recycling into potable water. Experiments were performed at pH 5.5 and 8, iodine concentrations of 10 and 50 mg/L, and organic concentrations of 5 and 50 mg/L. Gas chromatography/mass spectrometry was used to identify and monitor the concentrations of organic species. Spectrophotometry was used to monitor the iodine concentration. Acetone was the only compound identified as an IDBP precursor and it reacted to produce iodoacetone and iodoform. Concentrations of iodoform from 0.34 mg/L to 8.637 mg/L were produced at conditions that included each pH level, iodine concentration, and acetone concentration. The greatest iodoform concentration was produced at pH 8 from 50 mg/L of iodine and acetone. FPA indicated that the odor threshold concentration (OTC) of iodoform was 1.5 ug/L, and the OTC of iodine was 500 ug/L. Both iodine and iodoform have medicinal odors, making it difficult to distinguish each compound when present in a mixture.Master of Science
19
Schoettler, Cameron J. "The carcinogenic profiles, trends, and cencer risks of regional smokeless tobacco products". Thesis, Boston University, 2013. https://hdl.handle.net/2144/12216.
Testo completoAbstract (sommario):
Thesis (M.A.)--Boston UniversitySmokeless tobacco products have existed for centuries and vary significantly across geographical regions. The constituents found in each smokeless tobacco product depends on many factors, including social customs, manufacturing regulations, and the availability of local raw ingredients. Unfortunately, tobacco products have been linked to cancer over the past several decades, particularly of the oral cavity. In this study, the carcinogenic profiles, relative risks of oral cancer, and usage trends for three unique smokeless tobacco regions (United States, Sweden, and India) will be evaluated in order to determine the relative safety for each product. In this paper, the chemical analysis of various products from United States, as well as Swedish snus and Indian gutkha were reviewed, to establish constituent profiles. The main carcinogens evaluated were the tobacco-specific n-nitrosamines; gutkha displayed the highest values of these ingredients, with snus displaying the lowest. Studies examining the relative risks for oral cancers associated with each of the three region’s smokeless tobacco products were assessed. Indian gutkha expressed the highest relative risk for developing oral cancers, and Swedish snus expressed the lowest (a very slight increased risk at that). To establish usage habits for each region-specific smokeless tobacco product, various epidemiological studies were analyzed and showed that gutkha was the most prevalently used product in its respective region, with Swedish snus only slightly trailing in use. Smokeless tobacco products were used the least in the United States. These studies concluded that the gutkha habits in India were the most damaging to the public health of the nation with regards to smokeless tobacco use, particularly due to the high prevalence of use and high relative risk of oral cancers. In a purely chemical sense, Swedish snus was less harmful than the counterparts often sold in the United States. Yet, with snus use significantly higher than smokeless tobacco use in the United States, it is thought that Sweden snus habits are more detrimental than those seen in the United States. However, smokeless tobacco is ultimately an unsafe practice in all three regions evaluated, and more should be done to remove carcinogens from the products and promote self-restraint for current users.
20
Kirk, Loren, Stacy D. Brown e Paul Lewis. "Comparison of Stability Profiles of Three Generic Vancomycin Hcl for Injections Products". Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/5284.
Testo completo
21
Tacoma, Rinske. "Examination Of The Effects Breed And Nutrition Have On The Milk Protein Profile Produced By Lactating Dairy Cattle". ScholarWorks @ UVM, 2016. https://scholarworks.uvm.edu/graddis/630.
Testo completoAbstract (sommario):
Milk is a highly nutritious natural product and research over the last 10 years has proven that these milk proteins not only provide a rich source of amino acids to the consumer but also contains many bioactive proteins and peptides known to exert biological activity benefitting human health. In this research, proteomic methods were first used to characterize the low abundance proteome within the skim milk fraction produced by Holstein and Jersey dairy cows maintained under the same diet, management and environmental conditions. Milk samples were collected over a seven day period from six Holstein and six Jersey dairy cows. Samples were depleted of casein (CN) by acidification and ultracentrifugation followed by ProteoMiner treatment. Extracts were subjected to sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) separation followed by liquid chromatography mass spectrometry (LC-MS). Over 930 low abundance proteins were identified and label-free proteomic analysis allowed for semi-quantification of proteins. Gene ontology (GO) classified proteins into various cellular localization and function categories. Forty-three low abundance proteins were differentially expressed between the two dairy breeds. Some bioactive proteins with immunomodulatory activities were present at significantly different abundance between breeds such as lactotransferrin (P <0.01) and Complement C2 (P <0.01), whereas others like osteopontin (P = 0.17) and lactoperoxidase (P = 0.29) were present at similar levels. This work has identified the highest number of low abundance proteins within the whey fraction in bovine skim milk, providing a foundation for future research exploring the bovine milk proteome.
Nutrition is a significant animal factor that has potential to alter milk protein composition. Therefore in the second phase of this work, nutritional perturbances were used to alter the bovine milk proteome by feeding Holstein dairy cows different proportions of rumen degradable (RDP) and rumen undegradable protein (RUP) to alter whole-body nitrogen (N) metabolism. Six multiparous Holstein cows in mid-lactation were randomly assigned to one of two treatment groups. The experiment was conducted as a double-crossover design consisting of three 21-day periods. Within each period, treatment groups received diets with either 1) a high RDP:RUP ratio (control: 62.4:37.6 % of CP) or 2) a low RDP:RUP ratio (RUP: 51.3:48.7 % of CP). Both diets were isonitrogenous (CP = 18.5%) and isoenergetic (NEL = 0.8 Mcal lbs-1). Feeding a diet high in RUP decreased β-casein (P = 0.06), κ-casein (P =0.04) and total milk casein concentrations in milk (P <0.001). Milk urea nitrogen (MUN) and plasma urea nitrogen (PUN) were significantly higher in the RDP group (P = 0.04; P < 0.01, respectively). Over 590 low abundance proteins were identified and only three proteins were found to be differentially expressed between the two dietary groups. The high dietary crude protein (CP) inclusion may explain the lack of treatment effect since protein synthesis within the mammary gland (MG) may not be responsive to dietary changes when total CP levels is offered in excess. Additional feeding trials are needed to alter N utilization patterns within a dairy cow while maintaining isonitrogenous and isoenergetic diets and offering normal CP levels. Nutritional perturbances offer opportunities to selectively alter the bovine proteome, providing a tool to enhance the healthfulness of milk.
22
Ouellette, Eric. "Volatile profiles for disease detection in stored carrots and potatoes". Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63898.
Testo completo
23
Kostadinovik, Velickovska Sanja [Verfasser], e Peter [Akademischer Betreuer] Winterhalter. "Polyphenolic and volatile profile of Macedonian wines and by-products / Sanja Kostadinovik Velickovska ; Betreuer: Peter Winterhalter". Braunschweig : Technische Universität Braunschweig, 2012. http://d-nb.info/1175823600/34.
Testo completo
24
Ma, Jie. "Chemical profile of ginseng, Epimedium, Rhodiola and Siberian ginseng extracts and stability of their formulated products". Thesis, University of Portsmouth, 2013. https://researchportal.port.ac.uk/portal/en/theses/chemical-profile-of-ginseng-epimedium-rhodiola-and-siberian-ginseng-extracts-and-stability-of-their-formulated-products(82ecfb44-910c-4284-8db4-98ffb20755ff).html.
Testo completoAbstract (sommario):
Rhodiola rosea, Eleutherococcus senticosus, Epimedium and Panax species have been used in complementary and alternative medicine for thousands of years and are used worldwide for their range of curative effects. In order for any herb preparation to be considered medicinally effective, it must be given at a sufficient dosage level, as well, for therapeutic purposes, the correct plant species is most important. Due to the lack of quality control, many herb-containing products that are made available to consumers on the market today may contain misidentified plant species, counterfeit ingredients, an insufficient quantity of the known active compounds and spiking with marker compounds. Therefore, better regulation and effective control of commercial herbal products are needed. There are three major aims for this research programme: 1) Development of analytical methods for the detection of major biological marker compounds of Rhodiola rosea, Eleutherococcus senticosus, Epimedium and Panax species and establishment of their HPLC profiles. 2) The developed methods from above to be used to evaluate raw materials and commercial products containing the Rhodiola rosea, Eleutherococcus senticosus, Epimedium and Panax species. 3) Establish Rapid Resolution Liquid Chromatography methods for each single herb and analyze multiple chemical constituents simultaneously in formulated products containing Rhodiola rosea, Eleutherococcus senticosus, Epimedium and Panax species. 4) To determine if the proposed developed methods are practical for use, and furthermore, with respect to selected commercial products to clarify that their content matches the claim on their label. Traditionally, single marker compounds are used for the evaluation and determination of herbs. This presents a restriction and consequently many counterfeit products are found on the market. Therefore HPLC profile analysis for the multiple chemical constituent is needed for a more accurate identification of herb species and provides significance for the analysis of formulated products. R. rosea, E. senticosus, Epimedium and Panax species were included in this study as these four herbs are often used in different mixture combinations to make the so called “energy formula”. This includes the simultaneous analysis of up to twenty active ingredients from these four herbs, namely, salidroside, tyrosol, eleutheroside B, E, rosarin, rosavin, rosin, rosiridin, Rg1, Re, epimedin A, B, C, icariin, Rb1, Rc, Rb2 and Rd. A rapid and effective method for the determination of phenylpropanoids, phenylethanol and monoterpenoids from R. rosea, eleutherosides B and E from E. senticosus, flavonol glycosides from Epimedium species and ginsenosides from Panax species in one injection using the reverse-phase Rapid Resolution Liquid Chromatography was successfully developed and used to evaluate the botanical combination. This breakthrough example will lead the industry to optimum quality control methods, especially for formulated botanical products. As well, the results will provide herbalists with more confidence in accepting the so called “standardized botanical extracts”. This developed method can simultaneously analyse Rhodiola, Eleutherococcus, Epimedium and Panax containing products to ensure the correct species.
25
Martins, Isabela Mateus 1985. "Ocorrência e avaliação do potencial enterotoxigênico de Staphylococcus isolados de derivados lácteos". [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254593.
Testo completoAbstract (sommario):
Orientador: José Luiz PereiraDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos
Made available in DSpace on 2018-08-17T10:58:52Z (GMT). No. of bitstreams: 1 Martins_IsabelaMateus_M.pdf: 18364444 bytes, checksum: 31989d921c63b7a58bff34af51349106 (MD5) Previous issue date: 2011
Resumo: Staphylococcus são micro-organismos amplamente distribuídos na natureza, sendo o homem e os animais suas principais fontes. A contaminação cruzada após a pasteurização do leite, especialmente por manipulação inadequada, é apontada como a mais importante forma de contaminação dos derivados do leite por estes patógenos, que são importantes em alimentos devido à sua habilidade de produzir uma grande quantidade de proteínas extracelulares (enterotoxinas) que, se pré-formadas no alimento e ingeridas, causam a intoxicação estafilocócica. Apesar da legislação brasileira (RDC 12/2001, Anvisa) preconizar apenas a contagem de Staphylococcus coagulase positiva, relacionando a produção da coagulase com o risco de produção de enterotoxinas, já foi comprovado que espécies coagulase negativas também são capazes de produzir enterotoxinas nos alimentos. Desta forma, os objetivos deste trabalho foram: i) quantificar e analisar a presença de Staphylococcus coagulase positiva e negativa em 104 amostras de derivados lácteos, sendo 24 de sorvete artesanal, 20 de creme de leite pasteurizado, 20 de patê à base de queijo, 20 de queijo Minas frescal e 20 de queijo Minas meia cura; ii) identificar fenotipicamente as espécies isoladas; iii) avaliar a produção de enterotoxinas clássicas (SEA, SEB, SEC1,2,3, SED e SEE) in vitro pelo sistema VIDAS e relacionar os resultados obtidos com a presença de possíveis genes codificadores destas enterotoxinas, pela aplicação da técnica de PCR. Os valores médios de contagens preliminares nos diferentes grupos de alimentos analisados foram: 5 x 103 UFC/g em sorvete, 2,9 x 105 UFC/g em creme de leite, 6,2 x 103 UFC/g em patê, 6,6 x 105 UFC/g em queijo Minas frescal e 6,4 x 105 UFC/g em queijo Minas meia cura. Do total de isolados, 83,6% (148/177) foram classificados como sendo do gênero Staphylococcus e 16,4% (29/177) como Micrococcus. Staphylococcus foram isolados de 43,3% (45/104) das amostras, sendo detectados em 25 amostras de queijos, em 16 sorvetes, em 3 patês e em apenas 1 amostra de creme de leite. Entre os isolados de Staphylococcus, 74,3% (110/148) eram coagulase negativa e 25,7% (38/148) eram coagulase positiva recuperados apenas nas amostras de queijos. Dos 111 isolados selecionados (27 coagulase positiva e 84 coagulase negativa), foram identificadas 13 espécies através do sistema API-Staph (bioMérieux-SA): S. aureus, S. auricularis, S. caprae, S. chromogenes, S. cohnii ssp cohnii, S. epidermidis, S. hominis, S. hyicus, S. lentus, S. saprophyticus, S. sciuri, S. warneri, S. xylosus. Para a detecção de enterotoxinas estafilocócicas clássicas, foi utilizado o kit (bioMérieux-SA). Dos?imunoenzimático ViDAS SET ¿Staph enterotoxin¿ 111 isolados, apenas um (0,9%) produziu enterotoxina, sendo este identificado como S. aureus, coagulase positiva, isolado a partir de queijo Minas meia cura, cuja contagem foi de 1,9 x 106 UFC/g. Ao contrário do esperado, não foram detectados genes codificadores das 5 enterotoxinas em nunhum dos isolados analisados. Discrepâncias entre resultados de testes fenotípicos e genotípicos para detecção de enterotoxinas são comuns, sendo necessária a realização de outros testes imunológicos e moleculares para confirmação destes resultados. Possíveis justificativas seriam a existência de variações nas sequências dos genes do isolado ou a presença de uma toxina que possui reação imunológica cruzada com as enterotoxinas clássicas. Neste estudo, apesar da quase totalidade dos isolados não terem produzido enterotoxinas clássicas, havia um número bem elevado de Staphylococcus em diversos produtos analisados, não excluindo um possível risco de produção das demais enterotoxinas já descritas e demonstrando a falta de cuidados higiênico-sanitários e de boas práticas durante a produção e comercialização destes alimentos
Abstract: Staphylococcus are microorganisms widespread in nature and humans and animals are their main sources. Cross-contamination after milk pasteurization, caused especially by improper handling, is considered the most recurrent source of dairy products contamination by these pathogens. Staphylococus deserves our close attention due their ability to produce a large amount of extracellular proteins (enterotoxins), that if preformed in food and ingested, cause staphylococcal food poisoning. Although the Brazilian legislation (RDC 12/2001, Anvisa) only recommends coagulase-positive staphylococci count monitoring (relating coagulase production to the risk of enterotoxins production), previous researches showed that coagulase-negative species are also capable of producing enterotoxins in foods. Thus, this research aimed: i) to quantify and analyze the presence of coagulase-positive and coagulase-negative staphylococci from 104 dairy products samples, being: 24 homemade ice cream, 20 pasteurized dairy cream, 20 cheese pate, 20 Minas fresh cheese, and 20 Minas half cured cheese; ii) to identify phenotypically the species; iii) to evaluate the production of classic enterotoxins (SEA, SEB, Sec1, 2.3, SED and SEE) in vitro by using VIDAS system and correlate the results to the presence of possible coding genes of these enterotoxins, applying the PCR technique. The average staphylococcal preliminary count values in different food groups analyzed were: 5 x 103 CFU/g in ice cream, 2,9 x 105 CFU/g in dairy cream, 6,2 x 103 CFU/g in pate, 6,6 x 105 CFU/g in Minas fresh cheese and 6,4 x 105 CFU/g in Minas half cured cheese. From isolated strains, 83,6% (148/177) were classified as genus Staphylococcus and 16,4% (29/177) as Micrococcus. Staphylococcus were isolated from 43,3% (45/104) of samples, being found in 25 cheese samples, in 16 ice creams, in 3 pates and in just one dairy cream sample. Among staphylococcal strains, 74,3% (110/148) were coagulase-negative Staphylococcus and 25,7% (38/148) were coagulase-positive Staphylococcus, being these recovered only from cheeses samples. On 111 selected isolates (27 coagulase-positive and 84 coagulase-negative), were identified 13 staphylococcal species by using API-Staph system (bioMérieux-SA): S. aureus, S. auricularis, S. caprae, S. chromogenes, S. cohnii ssp cohnii, S. epidermidis, S. hominis, S. hyicus, S. lentus, S. saprophyticus, S. sciuri, S. warneri, S. xylosus. For classical staphylococcal enterotoxins detection was used VIDAS SET Staph- Enterotoxin immunoassay kit (bioMérieux-SA). From 111 isolates, just one (0,9%) produced enterotoxin, which was identified as S. aureus, coagulasepositive, isolated from Minas half cured cheese, whose count was 1,9 x 106 CFU/g. Contrary to expectations, no coding genes were present in isolates analyzed. Discrepancies between phenotypic and genotypic results of enterotoxin detection tests are common, requiring the application of other immunological and molecular tests for the confirmation of the results. Possible explanations would be that there are genes sequences variations or another enterotoxin that has immunological cross-reaction with classic enterotoxins. For this research, although the higher number of the isolates did not produce classical enterotoxins, the analyzed samples showed high staphylococcal concentration, that do not exclude a newly described enterotoxins risk production. It also demonstrates the lack of hygiene, health care and good practices during the production and commercialization of dairy products
Mestrado
Mestre em Ciência de Alimentos
26
Wendland, Benedikt [Verfasser]. "Guideline for the Development of 3D-woven Profiles Produced on Conventional Narrow Weaving Machines / Benedikt Wendland". Aachen : Shaker, 2015. http://d-nb.info/1067734686/34.
Testo completo
27
Bernard, Julien. "Évaluation du profil biomécanique du coureur cycliste". Thesis, Poitiers, 2015. http://www.theses.fr/2015POIT2261/document.
Testo completoAbstract (sommario):
Les problématiques scientifiques étudiant la biomécanique du mouvement de pédalage en cyclisme ont fait et font toujours l'objet de nombreux travaux. Ces travaux touchent de divers domaines, technologique par exemple pour l'amélioration du matériel qui a considérablement évolué, physiologique pour l'amélioration des capacités physiques et des rendements énergétiques en fonction des styles de pédalage, et biomécanique pour l'expertise, en particulier, de l'efficacité de mouvement de pédalage. Le travail présenté s'inscrit dans ce dernier champ scientifique : la biomécanique du mouvement.Le travail réalisé a bénéficié d'un appel à projet de l'Agence Française de la Lutte contre le Dopage avec pour objectif : « [SIC] se réarmer vis-à-vis du dopage en adoptant des démarches qui se veulent originales et concrètes, notamment en se plaçant du point de vue de l'entourage scientifique de sportifs dopés » en se focalisant sur les thèmes « [SIC] Travail, puissance et rendement énergétique».Dans ce contexte, l'objectif général des travaux est l'évaluation du profil biomécanique du coureur cycliste par mesures en laboratoire. Pour cela, une plateforme expérimentale a été validée et nous a permis d'aborder deux questions centrales i) qu'est ce qui crée la force produite à la pédale ? ii) que peut-on attendre d'une évaluation énergétique mécanique du mouvement de pédalage? Ces deux points sont abordés à partir d'un protocole de tests de type incrémentiel tel que l'exige la Fédération Française de Cyclisme. Les résultats ont été obtenus sur une cohorte de coureurs EliteNumerous studies investigated and still investigate pedaling motion in cycling from a biomechanical point of view. These studies involve various fields, like technologic for improving the material which has considerably evolved, physiologic for physical capacities and energy efficiencies' improvement according to pedaling styles, and biomechanics for motion's expertise and pedaling efficiency in particularly. This work takes part in the last scientific field: the biomechanics of movement.This work received a call for proposals of the AFLD (Agence Française de la Lutte contre le Dopage) in order to: "[SIC] rearm regarding doping by adopting original and practical approaches, considering scientific environment of doped athletes" by focusing on the themes of "[SIC] Work, power and energy efficiency".In this context, the general objective of this work is the biomechanical evaluation of cyclist's profile in laboratory conditions. For this, an experimental platform has been validated and allowed us to follow two central issues i) How is created the force produced to the pedal? ii) What can be expected from a mechanical energy evaluation of pedaling motion? These two points are discussed through incremental protocol tests as required by the French Cycling Federation. The results were obtained on a cohort of Elite cyclists
28
Mancini, Duane Joseph. "Large Scale Synthesis of Amphiphiles for Biological Use and Analytical Profile of Polar Extracts from Mastic Gum". University of Toledo Health Science Campus / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=mco1404224303.
Testo completo
29
Menon, Ajay. "An Exploratory Examination of the Profitability Impact of Quality Dimensions for Consumer Goods and Industrial Capital Goods". Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc332691/.
Testo completoAbstract (sommario):
The issue of dimensions of quality has received very little attention in the marketing literature. This dissertation studies the impact selected individual dimensions of quality has on firm performance. The study examined the relation between product, service and image based dimensions of quality and firm performance. The performance measure utilized in this study was a firm's return on investment (ROI). Sample for the study included Strategic Business Units (SBUs) involved in the manufacture of consumer goods and industrial capital goods. A theoretical framework that details performance effects of selected variables was developed. Drawing upon previous research in Marketing, Management, Economics, and Strategic Planning, propositions and hypotheses were developed. The data required to test the hypotheses was obtained from the PIMS data base of the Strategic Planning Institute. Several GLM procedures including ANOVA, ANCOVA, and Multiple Comparison tests, such as SNK, Tukey and Bonferroni, were employed to test the various operational hypothesis. The results show that product and image based dimensions of quality impact RoT differentially for consumer goods and industrial capital goods. The extent of the difference depends on the order of market entry and the product's stage in the product life cycle. On the other hand, service based dimensions of quality did not impact ROI differentially for pioneers and non-pioneers. Similar results was found across stages of the product life cycle.
30
Bergh, Alexandra Jane. "Characterisation of the sensory profile of Cyclopia intermedia and optimisation of fermentation parameters for improved product quality". Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95908.
Testo completoAbstract (sommario):
Thesis (MScFoodSc)--Stellenbosch University, 2014.ENGLISH ABSTRACT: In light of the limited and inconsistent supply of good quality honeybush tea, a species-specific sensory profile and the physicochemical characteristics of Cyclopia intermedia (honeybush) tea were determined to ultimately establish the optimum fermentation parameters for this herbal tea on laboratory-scale and to validate these findings on commercial-scale. The characteristic sensory profile of C. intermedia can be described as sweet tasting and slightly astringent with a combination of “fynbos-floral”, “fynbos-sweet”, “fruity” (specifically “apricot jam”, “cooked apple”, “raisin” and “lemon/lemon grass”), “woody”, “caramel/ vanilla” and “honey-like” aromas. The flavour can be described as distinctly “fynbos-floral”, “fynbos-sweet” and “woody”, including hints of “lemon/lemon grass” and “hay/dried grass”. The results of the sensory study were used to create a C. intermedia sensory wheel and lexicon, and an elementary grading system that categorised samples into “good”, “average” and “poor” sensory quality was proposed. Physicochemical parameters, i.e. soluble solids (SS) content, absorbance as a measure of colour, and turbidity, were evaluated as possible rapid predictors of sensory quality. High SS content, absorbance and turbidity correlated strongly with “poor” sensory quality. A linear relationship existed between the physicochemical parameters. The effect of fermentation temperature (70, 80 and 90°C) and time (12, 16, 24, 36, 48 and 60 h) on the sensory and physicochemical characteristics of C. intermedia was determined on laboratory-scale. Increasing fermentation time increased the intensity of positive sensory attributes, while decreasing the intensity of negative sensory attributes. The SS content, colour and turbidity of infusions decreased with increasing fermentation time, while the SS content and turbidity of infusions increased with increasing fermentation temperature. Fermentation at 90°C for 36 h on laboratory-scale produced C. intermedia with the best sensory properties, while preserving the SS content and colour of infusions. Fermentation at 70°C and 80°C required longer fermentation times for development of positive sensory attributes. Fermentation at 90°C was subsequently validated on commercial-scale. Laboratory-scale fermentation of the same batches of plant material was also carried out concurrently to allow direct comparison of the scale of fermentation on tea quality. Commercial-scale fermentation, despite increased variability as a result of increased batch volumes and heating difficulties, produced C. intermedia of “good” sensory quality after 24 and 36 h of fermentation. Increasing fermentation time had little effect on the SS content and colour of infusions of tea produced on commercial-scale, but turbidity increased significantly after 36 h. Thus, to produce C. intermedia with consistently good quality on commercial-scale, fermentation at 90°C for 24 to 36 h is recommended. Increasing fermentation time past 48 h should be avoided to prevent turbidity and the development of sensory attributes characteristic of over-fermented tea. However, due to the large variability of commercial-scale honeybush tea production, it is recommended that each batch be monitored between 24 and 36 h to determine when optimum fermentation has been obtained.
AFRIKAANSE OPSOMMING: Beperkte en wisselvallige beskikbaarheid van goeie gehalte heuningbostee noodsaak die optimisering van fermentasie parameters vir Cyclopia intermedia. Optimisering van fermentation parameters is op laboratorium skaal gedoen, gevolg deur validasie van die parameters op kommersiële skaal. Vooraf is die spesie-spesifieke sensoriese profiel en die fisies-chemiese eienskappe van C. intermedia tee bepaal. Die kenmerkende sensoriese profiel van C. intermedia kan beskryf word as soet en effens vrank met 'n kombinasie van "fynbos-blomagtige", "fynbos-soet", "vrugtige" (spesifiek "appelkooskonfyt", "gekookte appel", "rosyntjie” en “suurlemoen/sitroen gras"), "houtagtige", "karamel/vanilla" en "heuningagtige" aromas. Die smaak kan beskryf word as "fynbos-blomagtig", "fynbos-soet" en "houtagtig", met 'n tikkie "suurlemoen/sitroen gras" en "hooi/gedroogde gras". Die resultate van die sensoriese studie is gebruik om 'n C. intermedia sensoriese wiel en leksikon, asook 'n basiese graderingstelsel wat tee monsters in "goeie", "gemiddelde" en "swak" sensoriese kwaliteit klassifiseer, te ontwikkel. Fisies-chemiese parameters: oplosbare vastestof (SS) inhoud; absorbansie as 'n maatstaf van kleur; en troebelheid, is geëvalueer as moontlike indikasies van sensoriese kwaliteit. Hoë SS inhoud, absorbansie en troebelheid waardes het sterk met "swak" sensoriese kwaliteit gekorreleer. 'n Lineêre verwantskap bestaan tussen die fisies-chemiese parameters en kwaliteit. Die effek van fermentasie temperatuur (70, 80 en 90°C) en -tyd (12, 16, 24, 36, 48 en 60 h) op die sensoriese en fisies-chemiese eienskappe van C. intermedia is op laboratorium skaal bepaal. Verlenging van fermentasie tyd het die intensiteit van die positiewe sensoriese eienskappe verhoog, terwyl dit die intensiteit van negatiewe sensoriese eienskappe verminder het. Die SS inhoud, kleur en troebelheid van die tee het met verlengde fermentasie tyd afgeneem, terwyl die SS inhoud en troebelheid met verhoging van fermentasie temperatuur toegeneem het. Fermentasie by 90°C vir 36 h op laboratorium skaal het tee met die beste sensoriese eienskappe geproduseer, met behoud van die SS inhoud en kleur. Fermentasie by 70°C en 80°C het 'n langer fermentasie tyd vir die ontwikkeling van positiewe sensoriese eienskappe vereis. Fermentasie by 90°C is daaropvolgens op kommersiële skaal uitgevoer, met gelyktydige laboratorium skaal fermentasie van dieselfde plantmateriaal lotte om die direkte effek van die skaal van fermentasie op tee kwaliteit te bepaal. Kommersiële fermentasie, ten spyte van verhoogde wisselvalligheid as gevolg van groot volumes tee en probleme met verhitting, het tee van "goeie" sensoriese kwaliteit na fermentasie periodes van 24 en 36 h geproduseer. Verlenging van fermentasie tyd het min uitwerking op die SS inhoud en kleur van kommersiel gefermenteerde tea gehad, maar troebelheid het beduidend na 36 h toegeneem. Fermentasie by 90°C vir 24 - 36 h word gevolglik aanbeveel om tee met goeie gehalte op kommersiële skaal te produseer. Fermentasie vir langer as 48 h moet vermy word om troebelheid te voorkom en die ontwikkeling van sensoriese eienskappe kenmerkend van oor-gefermenteerde tee te vermy. As gevolg van faktore wat groot variasie in kommersiële skaal heuningbostee produksie kan teweegbring, word aanbeveel dat elke produksielot tussen 24 en 36 h gemonitor word om die optimum fermentasie tyd te bepaal.
31
Reichwein, Axel [Verfasser], e Stephan [Akademischer Betreuer] Rudolph. "Application-specific UML profiles for multidisciplinary product data integration / Axel Reichwein. Betreuer: Stephan Rudolph". Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2012. http://d-nb.info/1018893512/34.
Testo completo
32
Saša, Đurović. "Savremene metode ekstrakcije koprive (Urtica dioica L.), sastav i primena ekstrakata". Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=108661&source=NDLTD&language=en.
Testo completoAbstract (sommario):
Glavni cilj istraživanja ove doktorske disertacije je bio ispitivanje hemijskog sastava lista koprive (Urtica dioica L.), primena različitih ekstrakcionih tehnika radi izolovanja aktivnih jedinjenja iz lista, ispitivanje njihovog hemijskog sastava, kao i formulacija prehrambenog proizvoda dodavanjem ekstrakta lista.U cilju ispitivanja sastava lista primenjene su različite analitičke tehnike kao što su GC/MS, GC/FID, UHPLC-DAD/MS/MS, ICP-OES, živin analizator, AAS i spektrofotometrija. Pri tome je dokazano prisustvo različitih klasa hemijskih jedinjenja među kojima su pigmenti (hlorofil i karotenoidi), terpenoidi, fenolni i polifenolna jedinjenja, vitamini (vitamin C i vitamini B grupe) i masne kiseline.Za izdvajanje biološki aktivnih jedinjenja primenjene su različite tehnike ekstrakcije, kao štosu: maceracija, Soxhlet ekstrakcija, ultrazvučna (UAE), mikrotalasna (MAE) i superkritičnaekstrakcija (SFE). Preliminarne UAE ekstrakcije su pokazale da je voda bila najpogodnija kao rastvarač, odnosno da su vodeni ekstrakti pokazali najveću antioksidativnu aktivnost, kao i najveći sadržaj ukupnih fenola (TPC) i flavonoida (TFC). Pripremljeni vodeni ekstrakti su dalje ispitivani u pogledu sastava, antioksidativne, citotoksične i antimikrobne aktivnosti, gde su rezultati međusobno poređeni kako bi se odabrala najpogodnija ekstrakciona tehnika. Kod SFE je ispitan uticaj uslova ekstrakcije, odnosno pritiska i temperature nasastav dobijenih ekstrakata i njihovu biološku aktivnost (antioksidativna i citotoksična). Iscrpljeni list korpive je nakon SFE bio ekstrahovan primenom UAE i MAE tehnika, gde su dobijenim ekstraktima utvrđeni sastav i biološka aktivnost. Nakon svih ispitivanja, MAE ekstrakt i suvi list koprive su dalje primenjeni u formulaciji prehrambenog proizvoda (hleba), gde je variran njihov sadržaj, dok su analizirani sastav, tehnološki kvalitet hleba, kao i biološka aktivnost (antioksidativna i citotoksična).The main goals of this PhD thesis were investigationof chemical composition of stinging nettle leaves(Urtica dioica L.), application of different extractiontechniques for isolation of biologically activecompounds from leaves, investigation of theirchemical composition and formulation of foodproduct with addition of dried leaves and/or its extract.For those purposes, different analytical techniqueswere applied, i.e. GC/MS, GC/FID, UHPLCDAD/MS/MS, ICP-OES, direct mercury analyzer,AAS and spectrophotometry. Different classes ofchemical compounds were detected and identified,such as: pigments (chlorophylls and carotenoids),terpenoids, phenolic and polyphenolic compounds,vitamins (vitamin C and B group) and fatty acids.For the purpose of isolation of biologically activecompounds, different extraction techniques wereapplied: maceration, Soxhlet extraction, ultrasound(UAE), microwave (MAE) and supercritical (SFE)extraction. Preliminary conducted extraction, as wellas total phenolics (TPC) and flavonoids (TFC)contents, showed that water was the most suitablesolvent for further course of investigation. Waterextracts were further analyzed regarding theirchemical composition, antioxidant, cytotoxic and antimicrobial activities. Obtained result werecompared in order to select the most efficientextraction technique. In the case of SFE, influence ofpressure and temperature on extraction yield,composition and biological activity of preparedextracts were monitored. Exhausted plant materialafter SFE was used for further MAE extraction, whileobtained extracts were analyzed to investigatechemical composition and biological activity.After conducted experiments and analysis, MAEextract was used for formulation of food product(bread) where it was added in different amounts incombination of without dried leaves. Obtainedproducts were analyzed regarding their chemicalcomposition, technological requirements andbiological activity.
33
Silva, Helena Isabel Dias. "A qualidade das padarias gourmet e a sua estratégia de marketing na definição do perfil do consumidor". Master's thesis, ISA/UL, 2014. http://hdl.handle.net/10400.5/8474.
Testo completoAbstract (sommario):
Mestrado em Engenharia Alimentar - Qualidade e Segurança AlimentarThe gourmet bakeries are establishments with sophisticated design, high and diverse range of products and refined service. The object of this research work, is studying the type of their customer looking for this products and services, also marketing strategy, due to the increase growing, especially in the center of the country, of the gourmet bakeries. To this project was made a literature review of the subject and two questionnaires (both via on-line). One of them was directed to consumers, which containing 119 responses, treated by Statistica software, using the chi-square test. In conclusion, the consumer of gourmet products depends of age level, literary qualifications and the household income. The consumers also describe gourmet products as owners of high quality and traditional component. The second questionnaire was made to managers of these organizations to verify the efficiency of their marketing plan. In conclusion, this differential strategy present in product, price, promotion and place satisfies the demand of these food products.
34
Mundy, Jo-Anne Shirley. "Life cycle assessment of UK forest products : evaluation of environmental profiles and analysis of their communication". Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/11845.
Testo completo
35
Eugenio, Acássio Coêlho. "Participação e caracterização da agricultura familiar na pedra do produtor da Ceasa-GO". Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8424.
Testo completoAbstract (sommario):
Submitted by Liliane Ferreira (ljuvencia30@gmail.com) on 2018-05-03T12:38:12Z
No. of bitstreams: 2
Dissertação -Acássio Coêlho Eugenio - 2018.pdf: 4082511 bytes, checksum: ed7fa8fcaebfbe741a44a6cd38ea6ab3 (MD5)
license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-05-03T13:24:21Z (GMT) No. of bitstreams: 2 Dissertação -Acássio Coêlho Eugenio - 2018.pdf: 4082511 bytes, checksum: ed7fa8fcaebfbe741a44a6cd38ea6ab3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
Made available in DSpace on 2018-05-03T13:24:21Z (GMT). No. of bitstreams: 2 Dissertação -Acássio Coêlho Eugenio - 2018.pdf: 4082511 bytes, checksum: ed7fa8fcaebfbe741a44a6cd38ea6ab3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-03-23
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
A huge difficulty is to access marketing channels in the selling of family farming products. Even if their principle means of commercialization is known: institutional markets, fair markets and supply centers, information about family farming participation in National Supply Centers and producer’s markets is still incipient. The aim of this work is to characterize family farming who trades in the Producer’s Stone of Ceasa, Goias. This research is classified as exploratory using documental analysis and enriched with a case study, using a quali-quantitative approach in the analysis of the collected data. In order to characterize the productive profile of rural establishments for each producer who trades in the Stone, it was analyzed three years of a certificate of production emitted by Emater, Goias. For the characterization of each farmer and their respective socioeconomic profile, 138 farmers were interviewed. The collected data were grouped and tabulated in spreadsheets. Later, it was crossed and analyzed with the help of IBM SPSS statistics software. The results showed rural establishments with a 50-kilometer radius of Ceasa-GO, small areas of vegetable and fruit crops, and elevate crop diversification ; and with a massive use of agricultural technologies such as fertilization, liming and irrigation. 129 farmers of 138 (93,5%) were classified as family farming. Through this research, it was possible to map the principles rural establishments and family farmers of the agriculture greenbelt of Goiânia metropolitan region, responsable in supplying hortifruti products to Centre and North region of Brazil.
Sabe-se que atualmente existe grande dificuldade de acesso aos canais de comercialização para escoamento dos produtos da agricultura familiar, sendo os principais os mercados institucionais, as feiras livres e as centrais de abastecimento. As informações referentes à participação da agricultura familiar nas Centrais de Abastecimento Nacionais e nos seus respectivos mercados do produtor, ainda são incipientes. O presente trabalho teve como objetivo caracterizar o perfil socioeconômico e produtivo dos agricultores familiares que comercializam na Pedra do produtor da Ceasa-GO. A pesquisa classifica-se como exploratória utilizando-se de análise documental e de estudo de caso, com enfoque qualiquantitativo na análise dos dados coletados. Para caracterização do perfil produtivo dos estabelecimentos rurais dos produtores que comercializam na Pedra foram analisados os atestados de produção de três anos emitidos pela Emater-GO. Para caracterização dos agricultores familiares e seu respectivo perfil socioeconômico foram entrevistados 138 agricultores na Pedra do produtor da Ceasa-GO. Os dados coletados foram agrupados e tabulados em planilhas. Posteriormente, cruzados e analisados sobre a luz do software IBM SPSS statistics. Os resultados demonstraram estabelecimentos rurais a um raio de 50 quilômetros da Ceasa-GO com lavouras de hortaliças e frutíferas de pequenas áreas e elevada diversificação de culturas. Identificou-se também a utilização massiva de tecnologias produtivas, como adubação, calagem e irrigação nas propriedades. Dos 138 produtores entrevistados 129 foram classificados como agricultores familiares, um percentual de 93,5%. Através da pesquisa foi possível mapear as principais propriedades e agricultores familiares do “cinturão verde agrícola” da região metropolitana de Goiânia, responsáveis pelo abastecimento de hortaliças e frutíferas da principal central de abastecimento da região Centro-norte do país.
36
Brown, Stacy D., Martha Borketey e Sharon Campbell. "LC-MS-MS Determination of Arachidonic Acid and Linoleic Acid Product Profiles in Colon Cancer Cells". Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/5276.
Testo completo
37
Kemarly-Hopkins, Julie Ann. "Differential Effects of Glucosinolate Profiles and Hydrolysis Products in Arabidopsis thaliana on Generalist and Specialist Insect Herbivores". Bowling Green State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1351451697.
Testo completo
38
Romberg, Minna, e Måsén Petra Johansson. "Är det dags att byta färg? : Vad tjänar varumärken på att bryta mot etablerade färgnormer?" Thesis, Södertörns högskola, Institutionen för ekonomi och företagande, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-16894.
Testo completoAbstract (sommario):
Problem: Färg har en stor associativ inverkan hos individer och är därför en viktig faktor vid varumärkesbyggande. Inom olika produktkategorier finns starkt etablerade färgnormer som följs men nu ser vi en utveckling på den svenska marknaden där etablerade färgnormer börjar ifrågasättas. Vi frågar oss vilka fördelar denna normbrottsstrategi har och hur den inverkar på konsumenter. Kanske har färgteorierna spelat ut sin roll och att det är dags för varumärken att bryta mönstret för att nå framgång. Vår frågeställning är således: Hur associerar svenska konsumenter färg till olika känslor, produktkategorier och varumärken? Vad tjänar varumärken på att bryta mot etablerade färgnormer? Syfte: Vi vill studera det glapp som finns mellan rådande färgteorier och det normbrott vi upptäckt på den svenska marknaden. Vi vill skapa en tydligare förståelse för konsumentens färgassociationer samt deras inställning till normbrottet för att undersöka vad varumärken kan tjäna på att avvika från färgnormen. Teori: Vårt teoretiska ramverk består av färgteorier, kommunikationsprocessen samt köpbeslutprocessen. Metod: Mailintervjuer med yrkesverksamma sker i syfte att sätta färg i ett produktperspektiv och vi analyserar meningsinnehållet i denna information för att se hur väl tillämpade färgteorierna är i deras arbetsprocess. Huvudstudien är riktad till potentiella konsumenter bosatta i Sverige och har skett genom ett webbaserat frågeformulär som sker genom ett bekvämlighetsurval. Deduktivt undersöker vi hur respondenterna förhåller sig till teorier om färg. Del 1 i formuläret består av sluta svarsalternativ och testar vilken av elementarfärgerna respondenten kopplar till en given känsla enligt teorin. Del 2 består av bildfrågor som testar konsumentens förhållande till normbrottet ur ett produktperspektiv. Resultat: I mailintervjuerna med de yrkesverksamma åskådliggjordes en stor medvetenhet om färgteorier och färgens kommunikativa inverkan, färgvalet utgår från de emotionella reaktioner som färg väcker. Del 1 av undersökningen visade ett svagt associativt samband mellan färg och känsla enligt färgteorierna. Färgerna vit och gul hade högst respektive lägst associativt resultat. Det visades inga större skillnader mellan hur kvinnor och män svarat. Resultatet i del 2 visade en särskild benägenhet hos respondenter att välja en normbrytande färgsättning bland elektronikprodukterna. Slutsatser: Det visade sig att få respondenter är villiga att bryta mot färgnormer, vilket talar för tidigare forskning som säger att färgvalen ofta baseras utifrån vad de ska avbilda. Kvinnor och män tenderade att svara på samma sätt i båda delarna av frågeformuläret, vilket får tidigare diskussioner kring färgsättning och kön att kännas förlegad. Däremot valde en äldre åldersgrupp den röda TV:n. Arbete har betydelse då respondenter med heltidsarbete i större utsträckning valde att bryta mot normer.Issue: Colour has great associative impact on individuals therefore colour plays an important role in brand building. We see a development on the Swedish marketplace where strongly established colour norms that are ruled in diverse product categories start to be called into question. We ask ourselves what benefits a break of norm has and how it affects consumers. Perhaps the theories of colour should be stepped away from and now it is time for brands to break the pattern for success. Our question is therefore: How do Swedish consumers associate colour to different emotions, product categories and brands? What can brands benefit from going against the established colour norms? Purpose: This study examines the existing gap between the current colour theories and the break of norm we have discovered on the Swedish market. We want to create a clearer picture of consumers associations of colour and their attitude to the break of norm in purpose to investigate what brands can benefit from deviating from the color norms. Theoretical framework: Our theoretical framework consists of colour theories, the communication process and the purchase decision process. Methodology: The mail interviews with professionals are done in order to bring suit in a product perspective, we analyze the meaning content of this information to see how well the applied colour theories are in their work process. The main study is aimed at potential consumers residing in Sweden and has been implemented with a web-based questionnaire that takes place through a convenience sample. Deductive, we examine how the respondents relate to theories of colour. Part 1 of the form consists of close-out response options, and test which of the elementary colours the respondent connects to a given emotion of the theory. Part 2 consists of picture questions that test the consumer's relationship to the break of norm from a product perspective. Results: The mail interviews with professionals showed a great awareness of colour theory and the communicative impact of colour. The color choice is based on the emotional responses that colour evokes. Part 1 of the survey showed a slight associative relationship between colour and emotion of the colour theory. The colour white showed the highest associative result and yellow showed the lowest. There were no major differences between how men and women responded. The results in Part 2 showed a particular tendency of respondents to choose a norm breaking colouration among electronic products. Conclusion: It turned out that few respondents were willing to break the colour norms, which points to previous research that says that the colour choices often are based on what they will portray. Women and men tended to respond similarly in both parts of the questionnaire, which make earlier discussions about colour and gender seem antiquated. However, an older age group tended to chose the norm breaking red TV. Employment is important, as respondents with full-time work increasingly chose to violate the norms.
39
Justi, Marcos Antonio. "Automatização do controle de processo de refusão de solda "Lead Free" em uma linha de produção "SMD"". Universidade de Taubaté, 2009. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=338.
Testo completoAbstract (sommario):
Este trabalho de pesquisa apresenta uma proposta para um sistema de supervisão automatizada de processo dedicado à soldagem de componentes eletrônicos. Essa soldagem é realizada por forno de refusão de solda, o qual pertence ao processo de montagem de produtos eletrônicos com tecnologia de dispositivo de montagem em superfície (Surface Mounting Devide SMD). Esses produtos, para o caso estudado, são aplicados no ramo automotivo, o qual exige que o processo produtivo tenha características destacadas de repetibilidade, padronização, além da preservação do meio ambiente. Para atender essas características o mencionado processo emprega a tecnologia de solda sem chumbo (lead free) na soldagem de componentes. Essa tecnologia exige que o perfil térmico possua uma média de temperatura maior sobre os elementos submetidos ao processo de soldagem, quando comparado com o processo tradicional estanho-chumbo. Para atender essa exigência o sistema de supervisão proposto neste trabalho adquire informações relacionadas a temperaturas das zonas do forno, integridade de resistência de aquecimento, sistema de insuflamento de ar quente e velocidade de operação da esteira transportadora de placas. Essa aquisição é apresentada para o operador do sistema, por meio de uma Interface Homem-Máquina, com a meta de alertar sobre o atual estado do processo. Nessa interface é destacada a previsão de campos relacionados com registro contínuo das informações adquiridas, parametrização de informações de processo, alarmes visuais e sonoros. A avaliação sistêmica dessa proposta de monitoração de informações indica que se forem controladas todas as características críticas do forno poderá haver contribuição para a melhoria no aludido processo de produção especialmente no que se refere à qualidade da soldagem, bem como a integridade física de todos os componentes do produto.This research presents a proposal for an automated supervision system of dedicated soldering process of electronic components. This soldering is accomplished by a reflow oven, which belongs to the process of assembly of electronic products with Surface Mounting Device (SMD) technology. These products, for the studied case, are applied in the utomotive branch, which demands that the productive process has outstanding characteristics of repeatability, standardization, beyond of the preservation of the environment. To assist those characteristics mentioned, this process uses the solder technology without lead (lead free) in the soldering of components. This technology demands that the thermal profile possesses an average of bigger temperature on the elements submitted to the soldering process, when compared with the traditional process tin-lead. To assist that demand the supervision system proposed in this work acquires information related with temperature of oven zones, integrity of heating resistance, blower system and speed of board transportation belts / conveyors. This acquisition is presented for system operator by means of Man-machine Interface, with the goal of to sensitize on the current state of the process. In that interface it is detached the forecast of fields related with continuous registration of the acquired information, make the process information on a parameter, visual and sonorous alarms. The systemic evaluation of this proposal indicates that if controlled all the critical characteristics of the oven it will be able to have contribution for the improvement in the alluded process of production especially in what refers to the quality of the product.
40
Kamba, Evelyn Tatenda. "Effects of Aloe ferox in drinking water, on growth performance, blood parameters, meat quality, fatty acid profile and oxidative stability of broiler meat". Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/d1020202.
Testo completoAbstract (sommario):
The objective of the study was to determine the effects of Aloe ferox inclusion in drinking water on growth performance, blood biochemistry, physico-chemical characteristics, fatty acid profile and oxidative stability of broiler meat. The importance of A. ferox as a medicinal plant and factors that influence its utilization by communal poultry farmers were also investigated by use of a questionnaire survey. The survey revealed that the majority of respondents (84.6%) faced health challenges in their chickens and many relied (96.2%) on A. ferox to treat diseases and control parasites. The study also revealed that the choice of medicine (traditional or conventional) was influenced (P<0.05) by level of education and income. In the second phase of the research, a total of 600 Ross 308 day-old broilers, were randomly put in 6 treatment groups with 4 replicates, each having 25 birds. Fresh aqueous A. ferox leaf juice (ALJ) was administered in drinking water at a dosage of 20ml/litre to T1, T2 and T3 from day one to day 35, day one to day 14 and day 15 to day 28, respectively. Birds in T4 and T5 (positive controls) were treated with terramycin at the recommended dosage of 14g/litre of drinking water from day one to day 6 and from day 15 to 20, respectively; and birds in T6 (negative control) received distilled water from day 1 to 35. Feed Intake (FI), average daily gain (ADG) and feed conversion ratio (FCR) were calculated for the 5 week trial. After slaughter, carcass characteristics particularly dressing percentage (DP) and relative organ weight (ROW) were calculated. Serum biochemistry was also determined. For meat quality, pH and color were recorded 45 minutes and 24 hours after slaughter from the breast muscle. Fatty acid profiling and oxidative stability were determined using meat samples from the breast and thigh muscles. The results for growth performance showed that thebirds which were given A. ferox for the first two weeks (T2) consumed significantly (P>0.05) more feed (189.4g) than those in the negative control (159.6g) at the beginning of the starter phase. Subsequently, their ADG recorded on day 7 (27.1g) and day 14 (43.1g) were significantly (P<0.05) higher than the negative control (22.8g and 36.2g, respectively). Significant treatment effects (P<0.05) for FCR were reported in the 4th week for the birds that received A. ferox throughout (T1: 3.5). Carcass characteristics were not significantly (P>0.05) affected by A. ferox inclusion in drinking water. The highest high density lipoprotein (HDL) values (2.78 mmol/L) were yielded in T2and T3 had the lowest values (0.61mmol/L) for low density lipoprotein (LDL). For physico-chemical properties, no significant effects (P>0.05) of treatment on pH, colour, cooking loss and tenderness were observed. However, the group treated with A.ferox throughout the production cycle, had the highest pH (6.2), lowest lightness (38.5), highest redness (4.1), highest tenderness (13.86N) and the lowest cooking loss (12.6%). Significant treatment effects (P<0.05) were observed on the composition of the PUFA eicosatrienoic acid (C20:3c8, 11, 14(n-6)) of the breast muscle which was significantly lower in the A. ferox treatment groups than the positive controls. For the thigh muscle, there were significant (P<0.05) treatment effects on composition of palmitoleic acid (C16:1c9) and g-linolenic acid (C18:3c6, 9, 12 (n-3)). No significant (P>0.05) effects were found on oxidative stability of both thigh and breast muscles. In conclusion, the wide use of A. ferox by communal chicken farmers showed its importance as a medicinal plant. Apart from it being an effective medicinal plant, A. ferox inclusion in drinking water results in improved FI, ADG, reduced in LDLC and better g-linolenic and palmitoleic acid composition in the meat.
41
Bird, Mark Francis. "Investigating the potential of novel bivalent pharmacophores and tetra-branched opioids to produce analgesics with diminished tolerance and dependence profiles". Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/39639.
Testo completoAbstract (sommario):
All clinical opioid analgesics target the MOP (Mu Opioid Peptide) receptor. While these drugs provide analgesia, long-term treatment leads to tolerance and dependence. By targeting MOP and another member of the opioid receptor family, such as DOP (Delta Opioid Peptide receptor) or NOP (Nociceptin Orphanin F/Q Opioid Peptide receptor), these adverse effects are attenuated. Furthermore, solely targeting DOP or NOP may produce analgesia without the adverse effects associated with MOP. Three groups of variably mixed ligands have been developed; i) Fentanyl-based DOP and NOP bivalents, ii) peptide based MOP and NOP bivalents iii) tetrabranched NOP and DOP monovalent ligands. The pharmacology of these ligands has been investigated in a range of intracellular signalling assays. All compounds were tested in Chinese hamster ovary (CHO) cells expressing human MOP, NOP, DOP or KOP (Kappa Opioid Peptide receptor) receptors. Initial work with Fentanyl-based DOP bivalents resulted in a loss of functional activity at the MOP receptor. Further Fentanyl-derivatives conjugated with Ro65-6570 displayed partial agonist activity at MOP and full agonist activity at MOP. A second MOP/NOP bivalent pharmacophore, (DeNO), based on the peptides Dermorphin (MOP) and N/OFQ demonstrated full agonist activity at both receptors. A tetrabranched ligand formed from N/OFQ, displayed increased potency at the NOP receptor compared to N/OFQ. DeNO was investigated in human embryo kidney (HEK) cells which co-expressed MOP and NOP. The results of functional assays demonstrated a loss of MOP activity caused by the presence of NOP. Further studies with the opioids, Dermorphin and N/OFQ, and antagonists naloxone (MOP) and UFP-101(NOP), have demonstrated a structural interaction between MOP and NOP in this cell line. The work in this thesis demonstrates how modification of peptide structures was more successful in the development of multitarget ligands. The findings from this thesis provide a significant contribution to theory of receptor heterodimerisation between MOP and NOP, as demonstrated by the loss of potency of MOP agonists in the co-expression system.
42
Nuruzzaman, Shelly. "Study of parametric and hydrodynamic instabilities in laser produced plasmas". Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391443.
Testo completo
43
Kordaß, Richard, e Christian Arved Stürmer. "Individuelle Produktgestaltung mittels funktionsintegrierten AM-Knoten und Profilen am Beispiel eines Batteriekastens". Thelem Universitätsverlag & Buchhandlung GmbH & Co. KG, 2019. https://tud.qucosa.de/id/qucosa%3A36955.
Testo completoAbstract (sommario):
Die Entwicklungszeiten in der Automobilindustrie werden immer kürzer, die Produktpalette deutlicher breiter und die Anforderungen an Insassen- und Fußgängerschutz immer höher. Dafür müssen aus Sicht eines Engineeringdienstleisters Konzepte bereitgestellt werden, welche gut individualisierbar sind, mit geringem Aufwand an unterschiedliche Anwendungsszenarien angepasst werden können und gleichzeitig abgesichert sind. Dies ist insbesondere für das noch junge Feld der Elektromobilität von Bedeutung. Gerade hier sind flexible Konzepte wichtig, da neben den etablierten OEM auch neue Wettbewerber erscheinen. Für diesen Zweck wird bei EDAG ein Technologieträger einer modularen Zusatzbatterie entwickelt, welches auf einer Struktur aus Halbzeugen (Strangpressprofile) in Kombination mit individualisierbaren, funktionsintegrierten, additiv gefertigten Knoten basiert. Die Struktur der Knoten ist mittels Topologieoptimierung auf einen Crashlastfall ausgelegt und außerdem die Funktionen zur Medienverteilung, Profilanbindung, Karosserieversteifung und Halteelemente integriert. Nachfolgend werden die für die Entwicklung dieses Bauteils nötigen Grundlagen, der aktuelle Projektstand und der Engineeringprozess beschrieben. [... aus der Einleitung]
44
Kantola, Jan. "Market Potential Analysis of Producer Services : A Study of Jönköping County". Thesis, Jönköping University, JIBS, Economics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-877.
Testo completoAbstract (sommario):
The purpose of this thesis is to investigate the market potential of producer services in Jönköping County. In relation to the main purpose, the idea is to examine which factors that have a positive impact on the development of a long run qualitative producer service industry in the region.
The favourable location of Jönköping County is one of the main factors for why the county has one of the highest densities of manufacturing firms in Sweden. Moreover, the region has comparative advantages in several products, for an example; wood, rubber, machinery and electronically goods. Earlier research and comparisons with other international manufacturing clusters indicates that these areas tend to contain highly developed producer service industries. The thesis gives a case example of how the beneficial, mutual interaction between the manufacturing and producer service industries works in the car industry in Germany. However, to be able to establish a successful and close relationship between the above mentioned industries, the theoretical framework distinguishes several important factors; for instance, education and infrastructure are assumed to be the two most vital ingredienses. Nonetheless, also the firms’ production milieu and technology affects the successful development of a cluster district. Furthermore,when relating the theoretical assumptions to the descriptive statistics, with the intention to elucidate the industrial structure of Jönköping County, one can differentiate three major producer service sectors, namely; “Transport and mail”, “Consulting, marketing, law” and finally “Rentals of premises, labour and machinery”. Nevertheless, several alarming observations can be noticed concerning the wage level, education intensity, productivity and gross profit percentage within the county’s producer service industry; where all these features are below the domestic average. Nevertheless, the empirical analysis indicates that the region has a varying, but yet a positive market potential in the majority of the county’s municipalities. With correct priorities, Jönköping County has good future prospects to reach a high competitive position, but to accomplish this; the education intensity has to be improved.
Syftet med denna uppsats är att utreda om Jönköpings län besitter marknadspotential inom närindustriella tjänster. I relation till syftet är avsikten också att ta reda på vilka faktorer som kan underlätta utvecklingen av en långsiktig kvalitativ service industri i länet. Den fördelaktiga geografiska positionen är en av faktorerna till varför Jönköpings län har blivit ett av Sveriges industritätaste områden; där regionen har komparativa fördelar i trä, gummi, maskin och elektroniska produkter. Genom tidigare forskning och vid jämförelser med andra internationella tillverkningskluster hävdas det att det finns tydliga tecken på att dessa områden bör innerhålla starkt utvecklade centra för närindustriella tjänster. I uppsatsen nämns framförallt den tyska bilindustrin som ett exempel på hur nära samarbetet mellan tillverkning och service industrin kan bedrivas. För att kunna nå en nära samverkan mellan de nämnda industrierna så pekar teoridelen ut flera viktiga ståndpunkter, där bland annat utbildning och infrastruktur är av allra högsta vikt. Men även företagens produktionsmiljö och teknologi reflekterar hur ett framgångsrikt klusterområde utvecklas. När man därefter relaterar dessa utgångspunkter till den deskriptiva statistiken med syfte att klargöra Jönköpings läns industristruktur, kan man konstatera att den största industritjänsten utgörs av transport och logistik. Därefter följer marknadsföring,redovisning och juridisk rådgivning, medan den tredje och sista tjänsten är uthyrning av lokaler, maskiner och personal. Dock påträffas flera oroväckande iakttagelser gällande lönenivåer, utbildningsintensitet, produktivitet och bruttovinstandelar inom produktionstjänster i länet, då samtliga faktorer hamnar under riksgenomsnittet. Vidare indikerar de empiriska resultaten och analysen på att det finns en varierande men positiv marknadspotential i majoriteten av länets kommuner. Med rätta prioriteringar så finns det således goda framtidsutsikter för att regionen skall kunna skaffa sig en hög konkurrenskraft i framtiden. Men då krävs det framförallt en högre utbildningsgrad bland den arbetsföra befolkningen i länet.
45
Ahmed, Zeeshan. "An investigation of firms' earnings management practices around product recalls". Diss., Mississippi State : Mississippi State University, 2005. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.
Testo completo
46
Field, Daniel James. "Profit through product quality and quality service". Master's thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-02162010-020036/.
Testo completo
47
Rydzak, Thomas. "Integration of Genome Content, Enzyme Activities, and Expression Profiles in Assessing Changes in End-Product Yields in Clostridium thermocellum". Journal of Biotechnology, 2009. http://hdl.handle.net/1993/22280.
Testo completoAbstract (sommario):
Clostridium thermocellum is a fermentative, Gram-positive, thermophile capable of cellulosome-mediated breakdown of hemicellulose and simultaneous biofuels (ethanol and H2) production, and is thus an excellent candidate for consolidated bioprocessing. However, ethanol and/or H2 production yields are below theoretical maxima due to branched product pathways. Biofuel yields may be improved by manipulation of fermentation conditions or implementation of rational metabolic engineering strategies. However, the latter relies on a thorough understanding of gene content, gene product expression, enzyme activity, and intracellular metabolite levels, which can all influence carbon and electron flux. The thesis work represents the first large-scale attempt in combining bioinformatic, enzymatic, proteomic, and culture perturbation approaches to systematically understand these interactions.
C. thermocellum was used to investigate how these parameters affect end-product yields. Enzyme activities involved in conversion of pyruvate to end-products were consistent with end-product profiles and draft genome annotation. NADH and NADPH-dependent alcohol dehydrogenase (ADH) activities were comparable, whereas NADPH-dependent hydrogenase activities were higher than NADH and ferredoxin-dependent hydrogenase activities. While product yields changed in response to exogenous end-product additions, most core fermentative enzyme activities did not, suggesting that these changes may be governed by thermodynamics. The lack of major changes (>2-fold) in expression in response to growth and gas sparging was further confirmed by proteomics and RT-qPCR, respectively, although the latter revealed that ADH expression changes in response to gas sparging.
Improved genome curation allowed refinement of metabolic pathways. A genomic and end-product meta-analysis of ethanol and/or H2 producing fermentative bacteria revealed that presence/absence of genes encoding hydrogenases and aldehyde dehydrogenases/ADHs had the greatest impacts on biofuel yields. However, genome content alone did not necessarily explain end-product yields.
Given that genomic analysis of C. thermocellum revealed the presence of redundant genes encoding enzymes with analogous functions, shotgun and multiple reaction monitoring proteomics was used to refine which proteins are expressed. Absence/low expression of aldehyde dehydrogenase, ferredoxin-dependent hydrogenase and NADH:ferredoxin oxidoreductase suggest that these enzymes may not play a significant role in metabolism. An alternative electron flow pathway is proposed to explain end-product synthesis patterns in response to pyruvate addition or presence of protein inhibitors (CO, hypophosphite).
48
Guziana, Bozena. "Corporate Greening : Product and Production Perspectives". Doctoral thesis, Mälardalens högskola, Framtidens energi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-18667.
Testo completoAbstract (sommario):
This thesis describes corporate greening in general, and specifically the environmental technology (ET) sector as a green sector. The thesis has also particular focus on production and products related aspects and the influence of the environmental profile of the ET sector on the environmental engagement of companies in the sector. The study is based on a questionnaire-based survey, online surveys and on semi-structured open-ended interviews. The organizations within the ET sector were identified using existing platforms within this sector: Sustainability Sweden and Swentec. The results show that not all companies and industry associations in the ET sector clearly distinguish between product and production related environmental aspects. Furthermore, the product related environmental profile, which constitutes the legitimacy for the sector, can influence companies’ environmental strategy, not only positively but also negatively. The results from the survey on Global Supersector Leaders 2009/2010 in Dow Jones Sustainability Indexes (DJSI) show that all companies are aware of production and product related environmental issues. Based on results from this survey a model of corporate environmental profile consisting of product and production oriented activities as well as initiatives that go beyond the core business operations is proposed. These initiatives can be divided into two groups: environmental education and environmental projects and sponsorship. This thesis proposes products and production related impacts and environmental activities as bases for defining corporate environmental profiles, corporate greening, and for defining ‘green’ and ‘green-green’ business as well as environmental leaders. The distinction between product and production related environmental initiatives as well as the other dimensions of the proposed model in this thesis can support companies in their communication of environmental performance and environmental activities. Furthermore, ‘competitive advantage’, ‘environmental responsibility’ and ‘environmental leadership’ should motivate companies within the ET sector to be ‘vocal’ green-green firms.
49
Sasanti, Babalwa. "The effect of Fleckvieh crossbreeding in dairy cattle on the conjugated linoleic acid content of milk produced in intensive and pasture-fed systems". Thesis, Cape Peninsula University of Technology, 2015. http://hdl.handle.net/20.500.11838/2004.
Testo completoAbstract (sommario):
Thesis submitted in fulfilment of the requirements for the degree of Magister Technologiae: Agriculture in the Faculty of Applied Sciences at the Cape Peninsula University of TechnologyConjugated linoleic acid (CLA), a fatty acid (FA) present in the meat and milk of ruminant animals, is considered a functional nutrient for humans. The interest in CLA is attributed to its many health benefits, such as having anti-carcinogenic, anti-atherogenic, anti-diabetic and anti-adipogenic effects. Dairy products are a rich natural source of CLA, and preliminary research indicates that the levels in milk can vary based on cattle breed and feeding system. The Fleckvieh is a popular dual-purpose breed recently introduced to the Western Cape. It is used in crossbreeding programs with Holstein and Jersey herds to increase fertility and beef production. Holstein and Jersey cattle are the two most common South African dairy breeds, but little information is available on the effect of crossbreeding on FA content and CLA levels in the milk. The primary objective of this study was to compare milk FA composition and CLA content of these two dairy breeds and their respective Fleckvieh crosses. A second objective was to investigate the effect of lactation stage on CLA levels. Jersey (J) and Fleckvieh x Jersey (F×J) cows were kept in a pasture-based system (PBS) for the duration of the study. Holstein (H) and Fleckvieh x Holstein (F×H) cows were housed in a feedlot system and fed a total mixed ration (TMR) for the duration of the study. The FA and CLA content of feeds from these two feeding systems were also analysed and compared. All cows used in the study were housed at the Elsenburg Research Farm of the Western Cape Department of Agriculture. Milk samples were collected every 35 days from the cows in each feeding group, starting 10 days after calving. Samples were kept in a freezer at -20 °C until laboratory analyses. The total number of milk samples collected was 1044. The milk FA composition and CLA in particular were determined by gas chromatography. Differences between groups were statistically analysed by two-way repeated measures of analysis of variance (ANOVA). Results show that milk CLA levels are higher in Fleckvieh-crossbred cows when compared to purebred cows. The higher CLA content of milk from Fleckvieh crossbred cows demonstrates the feasibility of using Fleckvieh bulls in South African crossbreeding programs, and are also an indication that genetic selection for increased CLA content is possible. The analysis of lactation stage showed that milk CLA is higher during late lactation. A comparison of feed samples from the two feeding systems revealed that pasture feeding resulted in higher omega-3 FA in milk. Key words: Conjugated linoleic acid, milk fatty acids profile, diet, breed, health benefits, Fleckvieh, Holstein, Jersey, diet, pasture based system, total mixed ration system,
50
Rambo, Jorge Antônio. "O EMPREENDEDORISMO COMO FATOR DE DESENVOLVIMENTO NA GESTÃO DAS REDES DE EMPRESAS". Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/8404.
Testo completoAbstract (sommario):
The globalization of markets, the technological development and the increasing competitiveness among the organizations demand the raise of productivity and decreasing of costs. The small and average companies that deserve more distinction
every day, especially because of generation of jobs and the income that they provide, present some failures in the technological and managemental aspect and they need to create fortifying mechanisms for their insertion in the market. On the other hand society changes demand that the organizations make use of people with differentiated abilities, behavior and enterprising profile to supervise with ability and
quality. In order to transcend difficulties the small and average companies are organizing themselves as chain companies and productive arrangements. This research tried to identify the enterprising profile and the characteristics of the managers from the chain companies in the micro region of Três de Maio, northwest of Rio Grande do Sul state, using the test of personality Keirsey Temperament Sorter , applied to the main manager of the companies that participate of the program Cooperation Chains mentioned. A semi structuralized research with the directors of one company that belongs to the program was also done that detaches some personal qualities which are considered important for the management of a company that acts as a chain, mainly the aspects of compromise, cooperation, flexibility, chain
contacts, negotiation, marketing, initiative, leadership and the ability of guiding situations. According to its directors, the basic point for the management of a chain involves personal qualities but mainly the collective effort with decisive performance in negotiation, marketing, innovation and expacion areas. During this work some difficulties in the management of chains were identified as participation lack,
discouragement, little persistence and lack of compromise of some people who are associated. On the other hand, the positive points detected were the sharing of information, the negotiations, the shared advertising and the joint learning. The
management model considered for this study takes in consideration the managemental characteristics of the market, of the organization and of the collaborators to work as a cooperative and integrated way to the vital areas of the
chain companies through enterprisingA globalização de mercados, o desenvolvimento tecnológico e a crescente competitividade entre as organizações exigem o aumento de produtividade e redução de custos. As pequenas e médias empresas, cujo papel a cada dia merece mais destaque, especialmente em função da geração de empregos e renda que proporcionam, apresentam algumas deficiências no aspecto tecnológico e gerencial e precisam criar mecanismos de fortalecimento para sua inserção no mercado. As mudanças da sociedade, por outro lado, exigem que as organizações disponham de pessoas com habilidades diferenciadas, comportamento e perfil empreendedor para gerir com competência e qualidade. Para superar as dificuldades, as empresas de pequeno e médio porte estão se organizando em forma de redes de empresas e arranjos produtivos. A pesquisa buscou identificar o perfil empreendedor e as características dos gestores das redes de empresas na micro-região de Três de Maio, noroeste do Estado do Rio Grande do Sul, utilizando o teste de personalidade Keirsey Temperament Sorter , aplicado ao principal gestor das empresas que participam do programa Redes de Cooperação na região mencionada. Realizou-se, também, uma entrevista semi-estruturada com os diretores de uma rede pertencente ao programa que destaca algumas qualidades pessoais consideradas importantes para a gestão de uma empresa que atua em rede, principalmente os aspectos de: comprometimento, cooperação, flexibilidade, rede de contatos, negociação, iniciativa, liderança e capacidade de conduzir situações. O ponto fundamental para a gestão de uma rede, segundo seus diretores, envolve as qualidades pessoais, mas principalmente o esforço coletivo, com atuação decisiva nas áreas de negociação, marketing, inovação e expansão. No decorrer do trabalho foram identificadas algumas dificuldades na gestão das redes como: falta de participação, desânimo, pouca persistência e falta de comprometimento de alguns associados. Por outro lado, os pontos positivos levantados foram: compartilhamento de informações, negociações, publicidade compartilhada e aprendizado conjunto. O modelo de gestão proposto pelo presente estudo leva em consideração as características gerenciais, do mercado, da organização e dos colaboradores para, através do empreendedorismo, trabalhar de forma cooperativa e integrada as áreas vitais das redes de empresas