Dissertations / Theses on the topic 'L.O.S'

2009/2010
L'obiettivo del percorso di studio è quello di valutare i sistemi di trasporto a fune.Si è voluto introdurre il concetto di transit funiviario analizzando i diversi sistemi di trasporto offrendo una classificazione delle installazioni funiviarie con l'obiettivo di redigere un capitolo per il TCQSM su tale tema. Si è voluto provare ad applicare i concetti dei livelli di servizio (L.O.S.) contenuti nel HCM alle installazioni funiviarie. E' stato condotto un primo approccio tramite due campagne di interviste sui tempi di attesa e di viaggio su due installazione cabinoviarie a Siusi (BZ) ed Alleghe (BL). In queste indagini sono state distribuiti all’utenza questionari composti da domande relative ai tempi di attesa ed ai tempi di percorrenza con metodo di valutazione numerica da 1 a 10. E’ risultato evidente che quanto proposto dal TCQSM per i transit tradizionali non è direttamente applicabile al campo funiviario. Si sono dunque presentati dei L.O.S. appositamente calibrati. Da un'analisi dei dati osservati e da successive ricerche bibliografiche (studi condotti sul comportamento degli utenti nel trasporto ascensoristico facilmente assimilabile al trasporto funiviario) a supporto di quanto desunto, si è concluso che nel trasporto funiviario ciò che incide maggiormente nella valutazione dell'utente è il tempo di attesa. Si è dunque deciso di non approfondire ulteriormente l'analisi della valutazione del tempo di percorrenza. Allo scopo di validare le succitate indagini è stato condotto uno studio sul campo in merito alla formazione di code con interviste incentrate sulla valutazione dei tempi d'attesa presso il comprensorio dello Zoncolan (UD). In questo caso sono stati osservati i plotoni di sciatori in avvicinamento ad un impianto seggioviario. Sono stati cronometrati i tempi di attesa di utenti campione i quali, in corrispondenza del cancelletto d'imbarco, sono stati intervistati sul loro tempo di attesa percepito e sulla loro valutazione a riguardo. Sono state offerte tre diverse soluzioni verbali e non numeriche. Nello specifico l'intervistato ha potuto scegliere tra: indifferente, accettabile o inaccettabile. Come ulteriore fase di analisi si sono confrontati i due metodi in modo da ottenere una relazione sia numerica che verbale per l'attributo qualitativo dei diversi L.O.S. proposti. Per offrire un'applicazione pratica allo studio condotto si è applicato quanto osservato ad un comprensorio sciistico inteso come rete di transit funiviari. Tramite l'osservazione continuativa via WEB-CAM e l'analisi dei dati sui passaggi e relativi titoli di viaggio elettronici per le due stagioni invernali 2008/2009 e 2009/2010 del comprensorio del Cimone (MO), siamo stati in grado di valutare i flussi sugli archi della rete e la formazione delle code. Si sono introdotti due indici di valutazione: l’indice di utilizzo (iu) in funzione delle portate orarie osservate e di progetto nonchè l’indice di sostituzione (is) in funzione della vita residua delle installazioni (DM 23/85) e dei L.O.S. assegnati. Gli indici is e iu producono una valutazione sullo stato di fatto della rete funiviaria in base ad una graduatoria di sostituzione degli impianti per meglio pianificare gli investimenti di una stazione valutando aspetti tecnici, normativi oltre che di percezione del servizio da parte dell'utenza centrando l’obiettivo che ci si era preposti nella fase iniziale del percorso di studio.
XXIII Ciclo
1980

Bibliography: leaves 125-144. Genista monspessulana, a perennial leguminous shrub native to the Mediterranean region, is a major weed in native and forest ecosystems in South Australia and other parts of the world. This study examines the biology of G. monspessulana in its native and exotic ranges and investigates the outcomes of potential management strategies involving fire, herbicide and competition.

This study explored the relationship between L.D.S. seminary discontinuation and the characteristics of individual dropouts. It also sought to identify distinguishing characteristics of students who continue enrollment in seminary. The seminary teachers and the program itself were considered for their impact on a student's decision to continue attendance. Major factors such as peer associations, Priesthood involvement, parental influence and recruitment practices were considered. The roll of public school academic requirements in connection with premature seminary dissociation were also investigated. Initially a sample of dropout and continuing students form Southern Arizona were interviewed using an open-ended, semi-structured format. This process elicited data in four major domains: (1) discriminating personal characteristics; (2) external factors; (3) structural factors; and (4) church related factors. The responses were analyzed and used to develop a second questionnaire. This second survey was then administered to a larger sample of dropout and continuing students throughout Arizona.

In a world where the Sign Languages have been recognized as natural Languages, thanks to several linguistic and non-linguistic studies, the desire to understand and discover new things about them increases. The study proposes the results of a research made in Italy and Spain about interpreting to and from Sign Languages in a scholar setting; the target is to understand the interpreting techniques and which are the points in commons and which one not between this nations. The study is organized as follows: the first part is dedicated to the interpreter, to the Italian Sign Language and to the Spanish Sign Language, and than there is a little section about the legislative situation nowadays. In the last part will be proposed the study, made in Italy (Noventa Padovana) and in Spain (Seville) about the importance of the presence of the interpreter in a school where there are deaf and hearing children. Moreover, the study wants to compare and analyse the interpreting technique that interpreters use in scholar and extra-scholar situations and relationships among colleagues. All this has been made thanks to some surveys proposed during the first experience and repeated, readapted, in the second experience.

Published Article
This paper promotes the argument that although conventional postgraduate supervision is useful to address the research skills and competences of postgraduate students, a wider perspective is nonetheless required to educate and train any researcher (including postgraduate students upon their entrée into the world of research) to comprehend the demands made by research and how best these demands can be addressed. It is in this context that a more comprehensive concept of research education is promoted. The argument is based on the perspective that methodological understanding alone is not sufficient to assist a researcher in meeting the expectations of a research project. Research education refers to the training of researchers to be responsive to the research value chain. This includes aspects such as the formal research process, the importance of research ethics and integrity regarding the research project, the imperative to promote scholarship in research and the application of research results through technology transfer, innovation and incubation. Research education sensitizes the researcher to look beyond the scope of the academic research project and to extend the research to activities such as technology transfer, innovation, commercialization and partnerships. The aim of research education is to promote the wide range of aspects contributing to the understanding of what counts as research and its application.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-04-07T12:52:15Z No. of bitstreams: 1 2014 - Carlos Henrique Rocha Gon?alves.pdf: 2447515 bytes, checksum: bcb566dd037e0d15e3e3ab74112d585e (MD5)
Made available in DSpace on 2017-04-07T12:52:15Z (GMT). No. of bitstreams: 1 2014 - Carlos Henrique Rocha Gon?alves.pdf: 2447515 bytes, checksum: bcb566dd037e0d15e3e3ab74112d585e (MD5) Previous issue date: 2014-02-27
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
This work aimed to realize oxidative reactions using ozone in aqueous middle to simulate the aging aspect in Corymbia citriodora K.D. Hill & L.A.S. Johnson wood samples. Ozone that is a very reactive gas, was produced by the ozonizer by the corona effect. In order to evaluate the transformations occurred in the samples submitted to the treatment in different times and pHs (neutral, basic and acid) those samples were analyzed by various tests (color mensuration in the CIELAB colorimetric space; contact angle between water and wood by the goniometer; XPS spectroscopy and Pyrolysis ? GC/MS). The samples were obtained from a Corymbia citriodora tree log harvested in the UFRRJ campus in Serop?dica. Those samples were treated mechanically in order to adequate it to the analysis with 10 x 20 x 2 mm dimensions. It was observed that the 6h acid was the one that presented the best natural aging appearance. All the tests done have shown that the wood components had different behaviors in each treatment, especially when we talk about lignin and its G/S (Guaiacyl:Siringyl). The results have shown that the reactions were well succeed, revealing that the ozone had reacted in the majority of the samples, with the lignin, affecting the G/S ratio for all the treatments. XPS data showed the level of oxidation, for example, in the neutral treatment, showing ozone oxidative effect. In this way, the G/S ratio revealed that the ozone attack have occurred, first with the lignins that have predominantly the guaiacyl units, assuming that the reaction affected mainly the cellular region with high guaiacyl units content. It was also detected in the acid treatment, that the ozone as well reached the extractives group, especially the decanoic acids. All the experimentations were sufficient to discolor and give aging appearance to the wood, as the color changing shown by the color tests with the spectrophotometer. The contact angle has proved that the samples in order absorb more water, becoming more hydrophilic, when related to the L:C ratio (lignin:carbohydrate).
Esse trabalho teve por objetivo realizar rea??es oxidativas utilizando oz?nio em meio aquoso para simular o aspecto de envelhecimento em madeiras de Corymbia citriodora K.D. Hill & L.A.S. Johnson. O oz?nio que ? um g?s extremamente reativo foi produzido pelo ozonizador atrav?s da descarga corona. Para avaliar as modifica??es ocorridas nas amostras ap?s serem submetidas ?s rea??es de ozon?lise em diferentes tempos e pHs (neutro, b?sico e ?cido), essas amostras foram posteriormente submetidas a v?rios testes (mensura??o da cor no espa?o colorim?trico CIELAB; do ?ngulo de contato entre a ?gua e a madeira atrav?s do goni?metro; espectroscopia XPS (Espectroscopia Fotoeletr?nica de Raios-X) e pir?lise ? CG/EM (pir?lise analisada por cromatografia gasosa, acoplada ? um detector de massa)). As amostras foram obtidas de tora de madeira de um esp?cime da esp?cie Corymbia citriodora obtida no campus da UFRRJ em Serop?dica. Essas amostras foram tratadas mecanicamente de maneira a adequ?-la para an?lise, ficando com dimens?o de 10 x 20 x 2 mm. Foi constatado que as amostras do tratamento ?cido durante 6h foram as que ficaram com a apar?ncia mais pr?xima de uma madeira naturalmente envelhecida. Os diversos testes feitos mostraram que os componentes da madeira se comportaram de forma diferente em cada um dos tratamentos especialmente no que tange ? lignina na sua raz?o G/S da mesma. Os resultados mostraram que a rea??es foram bem sucedidas, revelando que o oz?nio reagiu na grande maioria das amostras com a lignina afetando a raz?o G/S para todos os tratamentos. Dados do XPS mostram os n?veis de oxida??o por exemplo dos tratamentos neutros, mostrando o efeito oxidativo do oz?nio. Neste sentido, a raz?o Guacila/Siringila revelou que o ataque do oz?nio aconteceu primeiramente com as ligninas que predominam unidades guaiacila, pressupondo que a rea??o afetou direcionadamente a regi?o da parede celular com mais alto teor de unidade Guaiac?la. Foi tamb?m detectado no tratamento ?cido que o oz?nio atingiu tamb?m o grupo dos extrativos especialmente os ?cidos decan?icos. Todos os experimentos foram suficientes para descolorir e dar apar?ncia de madeira envelhecida, como mudan?as de cor mostradas pelos testes de cor com espectrofot?metro. O ?ngulo de contato mostrou que as amostras em ordem absorvem mais ?gua, tornando-as mais hidrof?lica, quando correlacionada ? raz?o C:L (Carboidratos:Lignina).

This study examines the congruence of teacher evaluation practices in the L.D.S. Church Educational System with the institutionally stated purposes for which teacher evaluation is to be conducted. Specifically, this is a qualitative study that utilizes the "grounded theory" approach (Glaser; Strauss, 1967) in the analysis of 10 in-depth interviews of Released-time Seminary teachers of the L.D.S. Church Educational System. Interviews transcriptions of teacher perceptions regarding teacher evaluation practices provided the basis for data analysis and interpretation. The use of The Ethnograph IV software assisted data analysis wherein the researcher identified emergent themes and patterns relating to teacher evaluation practices. Findings suggest that L.D.S. teacher evaluation practices are not perceived as congruent with the institutionally stated purposes. Findings are presented in terms of thematic patterns found to be emergent in the data. A theoretical rationale for the CES teacher evaluation practices is provided by Max Weber's sociological theory of organizational bureaucracy. Recommendations regarding practice and additional research are included.

Pelas qualidades silviculturais e da madeira, o Eucalyptus citriodora apresenta-se como uma excelente espécie para usos múltiplos, destacando-se a extração de óleo essencial para indústria de perfumaria e desinfetantes. Entre as espécies de eucalipto é a que apresenta madeira de alta densidade, dependendo das condições edafoclimáticas e procedência. Porém, as limitações referentes à disponibilidade de sementes e dificuldades de enraizamento de estacas e miniestacas inviabilizam sua multiplicação comercial. Sendo assim, a utilização da micropropagação objetiva acelerar os métodos convencionais de clonagem, de genótipos selecionados. Brotações com uma a três gemas de aproximadamente 1,5cm, foram transferidas para três diferentes meios básicos de cultura, MS (MURASHIGE; SKOOG, 1962), WPM (LLOYD; MCCOWN, 1980) e JADS (CORREIA et al., 1995), suplementados a cada subcultivo com concentrações combinadas e crescentes de benzilaminopurina (BAP- 0,025; 0,05 e 0,50mg L-1) e ácido naftalenoacético (ANA) (0,0025; 0,005 e 0,050mg L-1), sendo que para a maior concentração de ambos os fitorreguladores foram realizados 4 subcultivos, totalizando 6 subcultivos. Vinte repetições de cada tratamento foram separadas para avaliação dos parâmetros fisiológicos (peso da matéria fresca, peso da matéria seca e número de brotos por cepa), avaliação da aparência por nota e análise química do teor nutricional. O experimento foi conduzido no delineamento inteiramente casualizado em arranjo fatorial (3x3x3x3), testando-se três clones, três meios de cultura, três concentrações de BAP combinadas com três concentrações de ANA. Os resultados inferiram que as respostas aos diferentes meios de cultura são genótipo-dependentes em relação às concentrações salinas, relacionando as exigências nutricionais do material genético e a relação auxina/citocinina à produção de matéria seca. A multiplicação das microcepas é influenciada por fatores epigenéticos, que atuam no aumento do vigor, tamanho das folhas, número e homogeneidade das brotações
By its silvicultural qualities, Eucalyptus citriodora presents itself as an excellent species for multiple uses, especially the essential oil extraction for fragrance and disinfectants industry. Among Eucalyptus species, this has high wood density, depending on environmental conditions and provenance. However, limitations related to seed available and difficulties with cuttings rooting make unfeasible its commercial multiplication. Thus, the use of micropropagation aims to accelerate conventional methods of selected genotypes cloning. Shoots with one to three buds with about 1.5 cm length were transferred to three different basic culture media, MS (Murashige and Skoog, 1962), WPM (Lloyd and McCown 1980) and JADS (Correia et al. 1995), supplemented to each subculture with combined increasing concentrations of benzylaminopurine (BAP- 0, 025, 0.05, and 0.50 mg L-1) and naphthaleneacetic acid (NAA) (0.0025, 0.005 and 0.050 mg L-1), and the highest concentration of both regulators were performed during four subcultures, totaling 6 subcultures. Twenty replicates of each treatment were separated for assessment of physiological parameters (fresh weight, dry oven weight and number of shoots per microstumps), appearance evaluation by note and chemical analysis of mineral nutrient content. The experiment was conducted in a completely randomized factorial design (3x3x3x3), testing three clones, three culture media, three concentrations of BAP combined with three concentrations of NAA. The results inferred that the response to the different culture media are genotype-dependent to salt concentrations, relating the nutritional requirements of the genetic material and the relationship auxin/cytokinin production of dry matter. The multiplication of microstumps is influenced by epigenetic factors, which act to increase the strength, size of leaves, number and homogeneity of shoots.

L'évaluation de la capacité fonctionnelle après traumatisme et la mesure de l'efficacité des thérapeutiques proposées constituent un élément fondamental de la recherche portant sur les lésions du système nerveux. Les méthodes d'évaluation actuellement utilisées en toxicologie, en pharmacologie, en traumatologie et en neurochirurgie, soit comportent beaucoup d'imprécision et de subjectivité, soit se présentent sous forme de chaine de mesure très couteuse et très compliquée à gérer, ou encore fournissent des résultats d'interprétation longue et difficile nous avons élaboré un système complètement automatise visant a la simplicité, à la rapidité et a la standardisation des mesures. Ce système est applicable aux déficits générés par des lésions centrales et diffuses, quelle que soit la forme d'impact de cette lésion. Le LMS - locomotion monitoring system- respecte l'intégralité anatomo-physiologique de l'animal. Il ne nécessite aucune méthode de mesure invasive ce qui permet l'étude longitudinale à tout moment de l'expérimentation. Le traitement des données acquises, base sur l'analyse multidimensionnelle, permet de concevoir un modèle de récupération des déficits locomoteurs. La standardisation de ces déficits permet de mesurer objectivement l'effet des thérapeutiques utilises. Plusieurs méthodes de classification sont ensuite évaluées. L'intérêt d'un classifieur est motive par la conviction que l'utilisation maximale des connaissances disponibles sur le comportement de l'animal ne peut conduire qu'à un diagnostic plus précis. La contrepartie est la sensibilité des décisions prises vis-à-vis notamment des erreurs de classification et de la mesure du taux de rétablissement. Ce dernier point constitue un paramètre essentiel pour les cliniciens. Il est, par conséquent, nécessaire de disposer d'un modèle évolutif et précis. La classification floue, outil quantitatif puissant, permet de résoudre ces problèmes. Pour remédier aux inconvénients détectés lors des différents traitements, un deuxième système de détection des erreurs de marche plus performant est conçu sur des principes éthologiques plus rigoureux.

Submitted by (lucia.rodrigues@ufrpe.br) on 2016-09-01T11:11:18Z No. of bitstreams: 1 Mayara Maria de Lima Pessoa.pdf: 2487662 bytes, checksum: 0330383991e05ffc18c2479c23bf8d0b (MD5)
Made available in DSpace on 2016-09-01T11:11:18Z (GMT). No. of bitstreams: 1 Mayara Maria de Lima Pessoa.pdf: 2487662 bytes, checksum: 0330383991e05ffc18c2479c23bf8d0b (MD5) Previous issue date: 2012-02-16
Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
In the quest to understand the natural regeneration under homogeneous plantings and the native forest, the present research aimed at analyzing the ecological succession of native vegetation at a dense ombrophylous forest remnant and within Corymbia citriodora understories (Hook.) K.D. Hill & L.A.S. Johnson, in order to conduct a comparative analysis regarding the role of these settlements in the preservation and renovation of the Atlantic forest biodiversity, in Sirinhanhém town, Pernambuco. The study was developed on two planting areas with the C. citriodora species, (Planted Forest – PF1 and PF2) besides a fragment of dense ombrophylous forest (Natural Forest – NF) adjacent to one of the reforestation areas. For the natural regeneration analysis, twelve portions of 5 m x 5 m (25m²) were launched on each area, and also the height and diameter of the individuals was measured in an inclusion level with Basis Height Circumference (BHC) 0,30 m < 15cm), where : C1 = height (H) ≥ 1,0 up to 2,0 m; C2 = H > 2,0 up tp 3,0 m; C3 = H > 3,0 m and Chest Height Circumference (CHC) < 15cm. The phytosociological parameters were calculated as follows: Density, Frequency, Dominance and Importance Value. For the vertical structure analysis, and estimation study was done regarding the Total Natural Regeneration per Height Classes. Moreover, the ecological groups, the dispersion syndrome, the spatial distribution and the floristic similarities were calculated. For the floristic diversity, the Shannon’s diversity index was used. On Area 1 (PF1), 225 individuals were sampled, distributed among 25 species. On Area 2 (PF2), 402 individuals and 23 species. On Area 3 (PF3), 418 individuals of sampled which belonged to 66 species. On the three areas of study, the greatest percentage of species belong to the group of initial secondary, with a type of zoochoric dispersion and assembled distribution. For the Total Natural Regeneration per Height Classes, on Area 1, Vismia guianensis, Miconia minutiflora and Guarea guinonia stand out from all. On Area 2, Miconia minutiflora. On Area 3, Protium heptaphyllum were the species which represented the highest values, indicating the importance of these to the natural regeneration on the study areas. Shannon’s diversity index were considered as low on Areas 1 and 2, if compared (2,10 e 2,26 nats/ind.) if compared to Area 3 (3,12 nats/ind). Although the succession process that was observed, due to the appearance and establishment of some species belonging to the arboreal natural vegetation, the diversity index obtained on Area 1 and 2, if compared to other studies and to the fragment used on this research, at first glance can’t stand the ideia of using the eucalyptus as a facilitator specie to the recovery of the Atlantic forest biodiversity on the areas of study, which brings the need of future studies which aim at the dynamic of the succession process conducted under homogeneous reforestations.
Buscando entender a regeneração natural sob plantios homogêneos e a floresta nativa, esta pesquisa teve como objetivo analisar a sucessão ecológica da vegetação nativa em um remanescente de floresta ombrófila densa e em sub-bosques de Corymbia citriodora (Hook.) K.D. Hill & L.A.S. Johnson, a fim de fazer uma análise comparativa entre o papel destes povoamentos na conservação e restauração da biodiversidade da Floresta Atlântica, no município de Sirinhaém, Pernambuco. O estudo foi desenvolvido em dois plantios com a espécie C. citriodora, (Floresta Plantada-FP1 e FP2) além de um fragmento de Floresta Ombrófila Densa (Floresta Natural-FN) adjacente a uma das áreas de reflorestamento. Para a análise da regeneração natural foram lançadas 12 parcelas de 5 m x 5 m (25 m²) em cada área, além de mensuradas as alturas e diâmetros dos indivíduos em um nível de inclusão com Circunferência a Altura da Base (CAB) 0,30 m < 15 cm), em que: C1 = altura (H) ≥ 1,0 até 2,0 m; C2 = H > 2,0 até 3,0 m; C3 = H > 3,0 m e Circunferência à Altura do Peito (CAP) <15 cm. Foram calculados os parâmetros fitossociológicos: Densidades, Frequências, Dominâncias e Valor de Importância. Para a análise da estrutura vertical foi feita a estimativa da Regeneração Natural Total por Classes de altura. Além disso, foram determinados os grupos ecológicos, síndrome de dispersão, distribuição espacial e similaridade florística. Para a diversidade florística foi utilizado o índice de diversidade de Shannon. Na Área 1 (FP1) foram amostrados 225 indivíduos, distribuídos em 25 espécies. Na Área 2 (FP2), 402 indivíduos e 23 espécies. Na Área 3 (FN) foram amostrados 418 indivíduos, pertencentes a 66 espécies. Nas três áreas de estudo, a maior porcentagem de espécies pertence ao grupo das secundárias iniciais, com tipo de dIspersão zoocórica e distribuição agregada. Para a Regeneração natural total e por classes de altura, na Área 1, destacaram-se Vismia guianensis, Miconia minutiflora e Guarea guinonia. Na Área 2, Miconia minutiflora, Miconia prasina e Vismia guianensis. Na Área 3, Protium heptaphyllum, Thyrsodium spruceanum e Myrcia sylvatica, foram as espécies que apresentaram os maiores valores, indicando a importância destas para a regeneração natural nas áreas de estudo. Os índices de diversidade de Shannon foram considerados baixos para as Áreas 1 e 2, (2,10 e 2,26 nats/ind.) quando comparados à Área 3 (3,12 nats/ind.). Apesar do processo de sucessão observado, devido ao surgimento e estabelecimento de algumas espécies da vegetação natural arbórea, os índices de diversidade obtidos nas Áreas 1 e 2, se comparados à outros estudos e ao fragmento utilizado nesta pesquisa, inicialmente não suportam a ideia do uso do eucalipto como uma espécie facilitadora para a recuperação da biodiversidade da floresta atlântica nas áreas de estudo, havendo a necessidade de estudos futuros que objetivem a dinâmica do processo sucessional conduzida sob reflorestamentos homogêneos.

Publicación a texto completo no autorizada por el autor
Determina las características clínico-epidemiológicas de los pacientes con neurocisticercosis que no responden al tratamiento antiparasitario con albendazol en el Hospital Nacional Luis N. Sáenz- PNP durante junio del 2009 a junio del 2011. Se realizó un estudio observacional, analítico, comparativo, retrospectivo y transversal. El tamaño de la población en estudio fue de 78 pacientes divididos en dos grupos: 33 pacientes con neurocisticercosis que no responden al tratamiento antiparasitario con albendazol y 45 pacientes con neurocisticercosis que si responden al tratamiento antiparasitario con albendazol. Las fuentes de información son las historias clínicas de aquellos pacientes con esta patología, que acudieron al Hospital Luis N. Sáenz durante Junio 2009 y Junio 2011. La edad promedio de los pacientes fue 37.7 años, con rangos de 18 a 34 años (41%), siendo la mayoría de sexo Masculino (65.4%). Las características sociodemográficas como la edad (p=0.973) y el sexo (p=0.243) no resultaron significativas con la respuesta o no al tratamiento antiparasitario con albendazol. El 42.4% de los pacientes con NCC que no respondieron al tratamiento tuvieron un tiempo de enfermedad de 1 mes muy similar al 42.2% de los pacientes que si respondieron al tratamiento (p=0.344). El diagnóstico de la NCC en el 33.3% de los pacientes que no respondieron al tratamiento fue mediante clínica y neuroimágenes, a diferencia de los pacientes que si respondieron al tratamiento quienes tuvieron un diagnóstico mediante clínica, neuroimagen y serología (26.7%) (p=0.129). Se observó que existe relación entre la localización de la NCC y la respuesta o no al tratamiento antiparasitario con albendazol (p=0.002). La mayoría de los pacientes sin respuesta y con respuesta al tratamiento presentaron la forma quística (36.4% y 42.2% respectivamente) (p=0.832). Los principales signos y síntomas de los pacientes con y sin respuesta al tratamiento antiparasitario fueron náuseas y vómitos (20% versus 27.3%), cefalea (31.1% versus 24.2%) y crisis epilépticas (15.6% versus 18.2%) (p=0.955). La dosis de Albendazol administrada al 60.6% de los pacientes con NCC sin respuesta al tratamiento fue 15 mg/kg/día y al 39.4% fue 30 mg/kg/día, mientras que en los pacientes con respuesta favorable al tratamiento, al 48,9% se les administró una dosis de 15 mg/kg/día y al 46.7% 30 mg/kg/día (p=0.336). El 51.5% de los pacientes sin respuesta al tratamiento tuvieron un tiempo de tratamiento de 15 días, en cambio en los pacientes con respuesta favorable al tratamiento el 51.1% tuvo un tiempo de tratamiento de 45 días (p=0.495). El 33.3% de los pacientes sin respuesta al tratamiento fueron retratados frecuentes, el 24.2% tuvo aumento de las lesiones, el 21.2% fueron rebotadores, el 18.2% fueron no respondedores y el 3% tuvo una respuesta clínica exagerada. Existe relación entre las complicaciones (p<0.001) y las secuelas neurológicas (p=0.002).con la respuesta favorable o no al tratamiento antiparasitario con Albendazol. Las características clínicas de los pacientes con NCC que recibieron tratamiento antiparasitario con albendazol muestran que la localización de la NCC en los pacientes que no respondieron al tratamiento antiparasitario fue en los Ventrículos (39.4%) y en los pacientes que si respondieron al tratamiento fue en el Parénquima cerebral (60%), siendo estos porcentajes estadísticamente significativos (p=0.002). Así mismo, existe relación entre las complicaciones (p<0.001) y las secuelas neurológicas (p=0.002) con la respuesta favorable o no al tratamiento antiparasitario con albendazol.
Trabajo académico

Submitted by Jadson Francisco de Jesus SILVA (jadson@uefs.br) on 2018-01-23T00:22:49Z No. of bitstreams: 1 Disserta??o vers?o biblioteca FINAL II Teresa_versao WORD (1) (1).pdf: 2399848 bytes, checksum: a72bd616ac1f702167982548cd4418bb (MD5)
Made available in DSpace on 2018-01-23T00:22:49Z (GMT). No. of bitstreams: 1 Disserta??o vers?o biblioteca FINAL II Teresa_versao WORD (1) (1).pdf: 2399848 bytes, checksum: a72bd616ac1f702167982548cd4418bb (MD5) Previous issue date: 2017-08-29
Corymbia torelliana (F. Muell.) K.D. Hill & L.A.S. Johnson (Myrtaceae) is a pollinated species, easy to adapt, high resistance and therapeutic potential. Considering that pollen has demonstrated medicinal potential, this study aimed to evaluate the chemical composition and biological activity of the pollen of this species. The material was collected at Bahia Specialty Cellulose / Copener. The chemical composition (phenolic content, total flavonoids and phytochemical screening) was evaluated from the raw ethanolic pollen extract (EEP) and the biological tests of antioxidant activity, 2,2-diphenyl-1-picryl-hydrazila (DPPH) (Rota rod), analgesic activity (tests of abdominal contortions induced by acetic acid, formalin and hot plate) and anti-inflammatory (carrageenan-induced paw edema test) were analyzed using mice. The presence of terpenes, steroids and phenolic compounds was identified and the EEP presented 116.21 ? 7.80 mgEAG / g of phenolic compounds and 35.81 ? 8.37 mgEQ / g of flavonoids. In the antioxidant activity test, pollen was able to sequester DPPH with EC50 of 60.85 ? 4.70 ?g / mL. As for the acute toxicity, no change was observed in the test used, nor was there any alteration in motor coordination in the Rota rod test. It was verified the presence of analgesic and anti-inflammatory activity of the EEP in the doses used (75, 150 and 300 mg / kg), and the dose of 75 mg / kg presented the best result. The results indicate an antioxidant, analgesic and anti-inflammatory potential for the EEP of this species, besides a possible peripheral and central activity.
Corymbia torelliana (F. Muell.) K.D. Hill & L.A.S. Johnson (Myrtaceae) ? uma esp?cie polin?fera, de f?cil adapta??o, grande resist?ncia e poss?veis potencialidades terap?uticas. Considerando que o p?len tem demonstrado potencial medicinal, este estudo teve como objetivo avaliar a composi??o qu?mica e atividade biol?gica do p?len dessa esp?cie. A coleta do material foi realizada na empresa Bahia Specialty Cellulose/Copener. A partir do extrato bruto etan?lico do p?len (EEP) foi avaliada a composi??o qu?mica (teor de fen?licos, flavonoides totais e triagem fitoqu?mica) e realizado testes biol?gicos de atividade antioxidante, m?todo 2,2?Difenil?1?picril?hidrazila (DPPH), utilizando camundongos analisou-se toxidade aguda, coordena??o motora (Rota rod), atividade analg?sica (testes das contor??es abdominal induzido pelo ?cido ac?tico, da formalina e da placa quente) e anti-inflamat?ria (teste do edema da pata induzido por carragenina). Foi identificada a presen?a de terpenos, esteroides e compostos fen?licos e o EEP apresentou 116,21?7,80 mgEAG/g de compostos fen?licos e 35,81?8,37 mgEQ/g de flavonoides. No teste de atividade antioxidante o p?len foi capaz de sequestrar o DPPH com CE50 de 60,85?4,70 ?g/mL. Quanto ? toxidade aguda n?o foi observada nenhuma altera??o no teste utilizado, bem como n?o foi verificada altera??es da coordena??o motora no teste do Rota rod. Foi verificada a presen?a de atividade analg?sica e anti-inflamat?ria do EEP nas doses utilizadas (75, 150 e 300 mg/kg), sendo que a dose de 75 mg/kg apresentou o melhor resultado. Os resultados obtidos apontam um potencial antioxidante, analg?sico e anti-inflamat?rio para o EEP dessa esp?cie, al?m de uma poss?vel atividade perif?rica e central.

O Corymbia citriodora (ex Eucalyptus citriodora) é uma espécie que ocupa um lugar de destaque no segmento de plantas aromáticas. Além de ser plantada, principalmente por pequenos e médios proprietários rurais, destinada a usos múltiplos, a espécie se destaca por colocar o Brasil como o maior produtor mundial de óleo essencial obtido de suas folhas. Dessa forma, os estudos de variação genética envolvendo caracteres de produção silvicultural e de óleo são importantes, visando à seleção de materiais geneticamente superiores. Diante de tais fatos, este trabalho teve como objetivos a avaliação do potencial de uma população originária de Atherton QLD, Austrália, a caracterização morfológica de matrizes e progênies superiores e a seleção de progênies e indivíduos superiores, em relação a produção de folhas, rendimento de óleo essencial e teor do seu componente químico principal, o citronelal. O experimento foi instalado em fevereiro de 2003, na Estação Experimental de Ciências Florestais de Anhembi, localizada no município de Anhembi, SP, pertencente à Universidade de São Paulo e administrada pelo Departamento e Ciências Florestais da Escola Superior de Agricultura “Luiz de Queiroz”. O delineamento experimental foi o de blocos completos ao acaso, com o plantio de árvores originadas de sementes de 45 progênies existentes na Estação Experimental, que por sua vez foram implantadas com material proveniente de uma População Base localizada em Atherton, QLD, Austrália. Foram instaladas parcelas lineares com 10 plantas, com 3 repetições, no espaçamento de plantio de 3m x 2 m. Aos 11 meses de idade, procedeu-se a avaliação do plantio em relação à sobrevivência, altura das plantas, produção de folhas, rendimento de óleo essencial e seu teor de citronelal. Os resultados indicaram: a) o crescimento em altura das plantas foi excelente, possibilitando a redução do período inicial de colheita das folhas; b) as progênies estudadas apresentam pouca variabilidade genética em relação aos caracteres estudados; c) a produção de folhas, expressou os maiores ganhos de seleção; d) a seleção pela média de progênies é mais indicada para os caracteres altura da planta, produção de folhas e rendimento de óleo e em nível indivíduos para o caráter teor de citronelal no óleo essencial; e) a morfologia de sementes das matrizes e folhas e pilos das mudas servem de orientação para seleção de materiais; f) o ranqueamento com base em multi caracteres é eficiente para a seleção de progênies superiores e g) a população apresenta média superior às que têm sido usadas comercialmente no Brasil, destinadas à produção de óleo essencial.
Corymbia citriodora is an important species among aromatic plants. It is a multipurpose species cultivated by small and intermediate farmers, which makes Brazil the largest world producer of essential oils obtained from leaves. Therefore, the study of genetic variations of the silvicultural variables and the oil production characteristics are necessary for the selection of desirable materials for a tree-breeding program. The main objective was to evaluate a C.citriodora population from Atherton QLD, Australia regarding the morphological characteristics of selected trees and superior progenies, their leaf biomass production, essential oil yield and citronelal content. The experiment was settled in February 2003, at Anhembi Forest Experimental Station, at Anhembi, SP, which belongs to the University of Sao Paulo and is managed by the the Forest Sciences Department of the “Luiz de Queiroz” Superior Agriculture College. The statistical design was completely randomised blocks, with progenies from 45 selected trees of a basic population from Atherton, QLD Australia. Ten-plants linear plots were used, with 3 repetitions, on 3 x 2 m spacing. At 11 months-old, survival rate, total height, leaf-biomass production, essential oil yield, and the citronelal content of the progenies was determined. Results demonstrated that: a) plant height growth was excellent, leading to a earlier first leaf harvesting; b) the progenies showed low genetic variation related to the characteristics evaluated; c) leaf production showed high selection gains; d) average of progenies’ selection is recommended for plant height, leaf production and oil yield. An evaluation of individuals is better for citronelal content selection; e) morphology of seeds fromselect trees, leaves and pilos of seedlings can help the selection of desirable materials; f) use of a rank system based on multiple variables is efficient for selection of desirable materials; g) the studied population showed, on average, a greater oil potential than others populations currently used in Brazil for essential oil production.

Une simulation des grandes échelles est utilisée pour étudier la dispersion de scalaires passifs, des particules solides et des gouttelettes dans une couche limite turbulente. Etant donné que de nombreux processus physico-chimiques, comme les réactions chimiques, les collisions, la coalescence, la fragmentation ou l'évaporation des gouttelettes ont lieu à des échelles bien plus petites que la maille, l'équation stochastique de Langevin est utilisée pour déterminer la composante petite échelle de la vitesse des particules suivies. Le modèle stochastique est exprimé uniquement en fonction des grandeurs obtenues par la SGE avec le modèle dynamique de sous-maille Germano et al. (1991). Enfin, la coalescence et la fragmentation sont introduites par un modèle probabiliste de coalescence et de fragmentation inspiré du modèle stochastique de fragmentation de Apte et al. (2003). Les résultats des différents modèles introduits sont confrontés à diverses expériences de laboratoire
In order to study the dispersion of industrial stack emissions, a large eddy simulation with the dynamic subgrid-scale model of Germano et al. (1991) is coupled with Lagrangian tracking of fluid particles containing scalar, solid particles and droplets. Because most interactions between particles, such as chemical reactions, collisions, coalescence, breakup or evaporation, take place at a subgrid scale, it is important to model the movement of particles below the grid. Therefore, a Langevin model is coupled with the LES. The stochastic model is written in terms of subgrid-scale statistics at a mesh level. Finally, a model for droplet coalescence and breakup is implemented. Coalescence and breakup are considered as a stochastic process under the scaling symmetry assumption. The model is inspired by the stochastic model for secondary breakup of Apte et al. (2003). The results of the different models implemented in the LES are compared with various wind tunnel experiments

Από 3 πρότυπα στελέχη Pseudomonas aeruginosa το Smooth στέλεχος PAC-IR και τα Rough στελέχη PAC-557 και PAC-605, που δώρησε ευγενώς στο Εργαστήριο Μικροβιολογίας του Πανεπιστημίου Πατρών η Dr. ΡΜ Meadow του University Co 1 lege, London παρελήφθησαν με ειδική μεθοδολογία ο λιποπολυσακχαρίτης L.P.S, η εξωκυττάρια ουσία (Slime) και οι εξωτερικές μεμβράνες. Έγιναν ηλεκτροφορήσεις με αποδιατακτικούς παράγοντες (SDS-PAGE) και χρώση των πηκτωμάτων για πρωτεΐνες με Coomassie blue, και για L.P.S με AgNÖ3. Οι ηλεκτροφορητικές εικόνες του Slime, του L.P.S και των εξωτερικών μεμβρανών διαφέρουν μεταξύ τους και στα 3 στελέχη. Ανάλυση των ουδετέρων σακχάρων έδειξε ότι και τα 3 Slime περί έχουν με ποσοτικές διαφορές 6 σάκχαρα, τη ραμνόζη, τη φουκόζη, τη ξυλόζη, τη μαννόζη και τη γαλακτόζη. Αντίθετα μαννόζη και γαλακτόζη δεν περιέχονται στο Smooth L.P.S, ενώ οι Rough L.P.Ss περί έχουν μόνο ραμνόζη και γλυκόζη. Ανάλυση του λιπιδικού στοιχείου των 3 Slime και των 3 L.P.Ss έδειξε ότι ποιοτικά περιέχουν 5 ίδια λιπαρά οξέα. Δωδεκανοικό οξύ (~Cii), 20Η-δωδεκανοικό (-Ci?), δεκατετρανικό οξύ (~Ci 4), δεκαεξανικό οξύ (~Cit), δεκαοκτανικό οξύ (-Ci s) και τα ισομερή του. Μετά από χρωματογραφία μοριακής διήθησης στα 3 Slime ο πολυσακχαρίτης που παραλαμβάνεται από την υδατανθρακική κορυφή δεν περιέχει L πρωτεΐνη και είναι μοριακού βάρους 40.000-100.000 daltons. Τα αποτελέσματα αυτά αποδεικνύουν ότι η παραγωγή του Slime είναι κοινή ιδιότητα Smooth και Rough στελεχών Ρ.aeruginosa και ότι το υδατανθρακικό στοιχείο του Slime είναι αυτοτελής ουσία, ελεύθερη πρωτεϊνών, που δεν αποτελείται από τις πλευρικές αλυσίδες του L.P.S.
Lipopolysaccharide (L.P.S), slime and outer membranes were obtained from a smooth, nonmucoid Pseudomonas aeruginosa strain, PAC-IR and its two rough mutants, PAC~ 557 and PAC-605 (Kindly provided by Dr. PM Meadow, University College, London). Electrophoretic analysis on SDS-polyacrylamide gels and staining with silver nitrate and Coomassie blue showed different profiles between L.P.S, Slime and outer membranes in all three strains. Comparative analysis of the saccharide moiety between L.P.S and Slime of each strain by H.P.L.C demonstrated that the saccharide moiety of slime has different composition from that of L.P.S. Six neutral sugars, rhamnose, fucose, xylose, mannose, galactose and glucose were identified in all three slimes though in different amounts. Mannose and galactose were not found in the smooth L.P.S, whereas only rhamnose and glucose were identified in the L.P.Ss of the rough strains. Comparative analysis of the lipid moiety between L.P.S and Slime in all three strains with Gas Chromatography and Mass Spectroscopy indicated that lipid moiety had no quaiitative differences concerning the lipid acids. Five lipid acids were identified in all three slimes and L.P.Ss dodecanoic acid (~Ci2)> 20H~dodecanoic acid (-C2?), tetradecanoic (-C14), exadecanoic (Ci(,), octadecanoic (- Cis) and its isomeric forms. After gel filtration of all three slimes the polysaccharide obtained from the carbohydrate peak fraction was found to be protein free. By gel filtration the mo 1 ecular size of the polysaccharide was estimated to be about 40000-100000 daltons. Whether the polysaccharide moiety is a glycolipid is not clear at the present. This problem is currently under investigation. Our results suggest that slime production is a common property shared by both Smooth and Hough Ρ.aeruginosa strains. The saccharide moiety of slime does not represent the side chains of L.P.S and it is protein free.