Journal articles on the topic 'Opachi'
To see the other types of publications on this topic, follow the link: Opachi.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Opachi.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Marchetti, Luca. "Arte e realtŕ in Danto e Adorno." PARADIGMI, no. 2 (July 2010): 43–54. http://dx.doi.org/10.3280/para2010-002004.
Full textAbstract:
Il saggio affronta il rapporto tra opera e oggetto nella filosofia dell'arte di A. Danto. In particolare: 1) le opere d'arte sono sempre a "distanza" da ciň che rappresentano (contro le avanguardie artistiche, Danto difende la "differenza" tra arte e realtŕ); 2) sono oggetti semi-opachi, ovvero trasparenti e opachi allo stesso tempo; 3) come per Adorno, sono "paradossali", perché attraverso qualcosa di reale si manifesta qualcosa che non č "reale". A partire da queste considerazioni Danto distingue arti disturbanti e arti disturbazionali: le prime operano all'interno dei "confini" dell'arte senza metterli in discussione, le seconde, invece, cercano di superare la differenza tra arte e realtŕ.
2
Solito, Ilaria. "Tra cambiamenti visibili e immobilismi opachi: la comunicazione pubblica in Italia." SOCIOLOGIA DELLA COMUNICAZIONE, no. 48 (December 2014): 100–118. http://dx.doi.org/10.3280/sc2014-048010.
Full text
3
Gorga, Roberto. "Distribuzione dei minerali opachi in grezzi talciferi della Val Lanterna (Alpi centrait)." Rendiconti Lincei 2, no. 3 (September 1991): 261–69. http://dx.doi.org/10.1007/bf03002953.
Full text
4
Stevanato, Dario. "Imposte sui redditi: trust opachi e trasparenti/commerciali e non commerciali (pagg. 10-14 della Circolare)." N° 1 (gennaio-febbraio), no. 1 (February 2, 2023): 94–106. http://dx.doi.org/10.35948/1590-5586/2023.244.
Full text
5
Sassoon, Donald. "Lino Miccichè (ed.), Schermi opachi. Il cinema italiano degli anni ’80, Marsilio, Venice, 1998, 498 pp., ISBN 88-317-6993-6 pbk, 54,000 Lire." Modern Italy 5, no. 2 (November 2000): 237–39. http://dx.doi.org/10.1017/s135329440000822x.
Full text
6
Resende, Natália Carolina Alencar, and Mailce Borges Mota. "A behavioral study to investigate the processing routes of grammatical gender in Brazilian Portuguese." REVISTA DE ESTUDOS DA LINGUAGEM 25, no. 3 (June 13, 2017): 1367. http://dx.doi.org/10.17851/2237-2083.25.3.1367-1395.
Full textAbstract:
Este artigo apresenta um estudo comportamental que teve como objetivo investigar se substantivos inanimados do português do Brasil, transparentes quanto ao seu gênero gramatical (substantivos femininos terminados em -a e masculinos terminados em -o) e opacos (outras terminações) são ou não processados por mecanismos cognitivos distintos. Para tanto, uma tarefa de concordância de gênero foi executada por 19 sujeitos em duas condições: entre um artigo definido e um substantivo (condição 1) e entre um substantivo e um adjetivo (condição 2). Fatores como a frequência dos substantivos e adjetivos (alta vs. baixa) e forma fonológica (transparente vs. opaca) foram manipulados. Os resultados mostram que, em ambas as condições, a frequência é um forte preditor de respostas mais rápidas, sugerindo que tanto formas transparentes quanto formas opacas podem ser armazenadas na memória. Este padrão foi encontrado em ambas as condições. Estes resultados foram interpretados como evidência para a visão unitária de processamento da linguagem.
7
Blazius, Carina Maccari, Ana Lígia Papst De Abreu, and Andrea Murillo Betioli. "Sistema de Vedação Vertical em Fachada Ventilada Opaca: estudo de caso sobre empreendimentos brasileiros." Revista Vértices 22, no. 3 (November 25, 2020): 610–25. http://dx.doi.org/10.19180/1809-2667.v22n32020p610-625.
Full textAbstract:
A fachada ventilada é um sistema construtivo que promove vantagens como agilidade na execução, alta produtividade, redução das etapas de controle de recebimento de materiais e de produção, entre outros. O Brasil não possui normas prescritivas sobre a construção de fachada ventilada opaca, contudo a NBR 15.575 pode ser aplicada para avaliação do desempenho de edifícios de uso residencial. Este artigo tem como objetivo organizar informações do sistema de construção de fachadas ventiladas opacas, contribuindo para a disseminação do uso dessa tecnologia no Brasil. O método adotado foi a pesquisa de dados em empresas brasileiras que utilizam o sistema de fachada opaca ventilada. As análises foram feitas quanto à localização, materiais utilizados, tipo de edifício (novo ou retrofit) e tipo de ocupação (residencial, comercial, institucional). Os resultados mostram que o uso do isolamento térmico é predominante em residências e prédios institucionais com fachada ventilada opaca, sendo que a cerâmica é o material mais utilizado no Brasil, apesar da variedade de materiais de revestimento externo. A pesquisa mostra que 78% dos edifícios com fachadas ventiladas opacas são de uso não residencial, portanto não há normas para sua utilização. Por fim, conclui-se que são necessários mais trabalhos acadêmicos sobre fachadas ventiladas opacas, ajudando, dessa forma, a consolidar normas prescritivas específicas no Brasil.
8
Calero, Andrés, and Esther Calero-Pérez. "Opacidad ortográfica y aprendizaje de la comprensión lectora en español." Ocnos. Revista de estudios sobre lectura 20, no. 2 (June 23, 2021): 33–42. http://dx.doi.org/10.18239/ocnos_2021.20.2.2274.
Full textAbstract:
Un modelo de instrucción basado en la secuencia didáctica “aprender a leer” y “leer para aprender” importado a nuestras escuelas desde un idioma opaco como el inglés, ha lastrado el desarrollo lector de muchos estudiantes de Educación Primaria. Con base en estudios translingüísticos que indican que el nivel de transparencia y complejidad silábica tiene un impacto no solo en cómo se aprende a leer y escribir en los distintos sistemas alfabéticos de escritura, sino también en los modelos de instrucción en comprensión lectora, este trabajo de revisión plantea: primero, que aprender a leer en lenguas opacas como el inglés o el francés es más arduo que hacerlo en lenguas transparentes como el finés o el español; y segundo, que el alumnado tarda más en dominar la lectoescritura de una lengua opaca que la de otra transparente. Consecuentemente, una perspectiva de instrucción en lectoescritura en nuestra lengua debería ir más allá de la mejora de habilidades de decodificación, fluidez lectora y comprensión literal, para promover que los lectores jóvenes aprendan a leer y lean para aprender simultáneamente, mejorando su vocabulario, sus esquemas de conocimiento, el reconocimiento de las distintas estructuras textuales, y sus habilidades cognitivas y metacognitivas.
9
Kapoor, Kanta, and O. P. Goyal. "Web‐based OPACs in Indian academic libraries: a functional comparison." Program 41, no. 3 (July 31, 2007): 291–309. http://dx.doi.org/10.1108/00330330710774165.
Full textAbstract:
PurposeThe paper seeks to provide a comparative analysis of the functionality of five web‐based OPACs available in Indian academic libraries.Design/methodology/approachSame‐topic searches were carried out by three researchers on the web‐based OPACs of Libsys, VTLS's iPortal, NewGenLib, Troodon, and Alice for Windows, implemented in five academic libraries in India. Their functionality was compared using criteria selected from the literature on OPAC searching.FindingsThe web‐based OPACs investigated offered a range of facilities for searching by author, title, control number and by keywords. Federated searching across several e‐collections was limited.Originality/valueThis paper should be a useful source of information to librarians who are planning to introduce web‐based OPACs and also for software vendors who wish to improve the functionality of their products.
10
Jo, Jungmin, Ji-Yi Lee, Kyoung-Soon Jang, Atsushi Matsuki, Amgalan Natsagdorj, and Yun-Gyong Ahn. "Development of Quantitative Chemical Ionization Using Gas Chromatography/Mass Spectrometry and Gas Chromatography/Tandem Mass Spectrometry for Ambient Nitro- and Oxy-PAHs and Its Applications." Molecules 28, no. 2 (January 12, 2023): 775. http://dx.doi.org/10.3390/molecules28020775.
Full textAbstract:
The concentration of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere has been continually monitored since their toxicity became known, whereas nitro-PAHs (NPAHs) and oxy-PAHs (OPAHs), which are derivatives of PAHs by primary emissions or secondary formations in the atmosphere, have gained attention more recently. In this study, a method for the quantification of 18 NPAH and OPAH congeners in the atmosphere based on combined applications of gas chromatography coupled with chemical ionization mass spectrometry is presented. A high sensitivity and selectivity for the quantification of individual NPAH and OPAH congeners without sample preparations from the extract of aerosol samples were achieved using negative chemical ionization (NCI/MS) or positive chemical ionization tandem mass spectrometry (PCI-MS/MS). This analytical method was validated and applied to the aerosol samples collected from three regions in Northeast Asia—namely, Noto, Seoul, and Ulaanbaatar—from 15 December 2020 to 17 January 2021. The ranges of the method detection limits (MDLs) of the NPAHs and OPAHs for the analytical method were from 0.272 to 3.494 pg/m3 and 0.977 to 13.345 pg/m3, respectively. Among the three regions, Ulaanbaatar had the highest total mean concentration of NPAHs and OPAHs at 313.803 ± 176.349 ng/m3. The contribution of individual NPAHs and OPAHs in the total concentration differed according to the regional emission characteristics. As a result of the aerosol samples when the developed method was applied, the concentrations of NPAHs and OPAHs were quantified in the ranges of 0.016~3.659 ng/m3 and 0.002~201.704 ng/m3, respectively. It was concluded that the method could be utilized for the quantification of NPAHs and OPAHs over a wide concentration range.
11
Teng, Chong, Shimin Wu, Yaqing Sun, and Guangyi Gong. "Determination of Parent and Oxygenated Polycyclic Aromatic Hydrocarbons (PAHs) in Waste Cooking Oil and Oil Deodorizer Distillate by GC–QQQ–MS." Journal of AOAC International 102, no. 6 (November 1, 2019): 1884–91. http://dx.doi.org/10.5740/jaoacint.19-0085.
Full textAbstract:
Background: Polycyclic aromatic hydrocarbons (PAHs) and oxygenated PAHs (OPAHs) are classes of contaminants that are present in the environment and food. They pose a great threat to human health because of their carcinogenicity and mutagenicity. Very few studies have focused on their concentration in waste cooking oil (WCO) and oil deodorizer distillate (ODD). Objective: This study aimed (1) to design a reliable method to determine 16 PAHs and 4 OPAHs in both WCO and ODD and (2) to determine and analyze PAH and OPAH concentrations in actual samples to provide references for further research. Method: The PAH determination approach included double liquid–liquid extraction, double solid-phase extraction, and GC–triple quadrupole tandem MS determination. Oxidation indices were determined by titrimetry. Results: The method reached good linearity (R2 > 0.99) and an acceptable recovery rate (55.01–126.16% for WCO and 57.48–128.97% for ODD). Ten WCO and five ODD samples were determined, and the total concentration of 16 PAHs varied from 16.34 to 239.01 and 101.08 to 198.04 μg/kg in WCO and ODD, respectively. Among the 16 PAHs, three-ring PAHs typically contributed the most. It was also found that the acid value has a strong correlation with the concentration of OPAHs, probably because of the contribution of free fatty acids to OPAH formation. Conclusions: The proposed method was effective in the analysis of PAHs and OPAHs in WCO and ODD.
12
Teng, Chong, Shimin Wu, Yaqing Sun, and Guangyi Gong. "Determination of Parent and Oxygenated Polycyclic Aromatic Hydrocarbons (PAHs) in Waste Cooking Oil and Oil Deodorizer Distillate by GC–QQQ–MS." Journal of AOAC INTERNATIONAL 102, no. 6 (November 1, 2019): 1884–91. http://dx.doi.org/10.1093/jaoac/102.6.1884.
Full textAbstract:
Abstract Background: Polycyclic aromatic hydrocarbons (PAHs) and oxygenated PAHs (OPAHs) are classes of contaminants that are present in the environment and food. They pose a great threat to human health because of their carcinogenicity and mutagenicity. Very few studies have focused on their concentration in waste cooking oil (WCO) and oil deodorizer distillate (ODD). Objective: This study aimed (1) to design a reliable method to determine 16 PAHs and 4 OPAHs in both WCO and ODD and (2) to determine and analyze PAH and OPAH concentrations in actual samples to provide references for further research. Method: The PAH determination approach included double liquid–liquid extraction, double solid-phase extraction, and GC–triple quadrupole tandem MS determination. Oxidation indices were determined by titrimetry. Results: The method reached good linearity (R2 > 0.99) and an acceptable recovery rate (55.01–126.16% for WCO and 57.48–128.97% for ODD). Ten WCO and five ODD samples were determined, and the total concentration of 16 PAHs varied from 16.34 to 239.01 and 101.08 to 198.04 μg/kg in WCO and ODD, respectively. Among the 16 PAHs, three-ring PAHs typically contributed the most. It was also found that the acid value has a strong correlation with the concentration of OPAHs, probably because of the contribution of free fatty acids to OPAH formation. Conclusions: The proposed method was effective in the analysis of PAHs and OPAHs in WCO and ODD.
13
Blecic, Deborah D., Nirmala S. Bangalore, Josephine L. Dorsch, Cynthia L. Henderson, Melissa H. Koenig, and Ann C. Weller. "Using Transaction Log Analysis to Improve OPAC Retrieval Results." College & Research Libraries 59, no. 1 (January 1, 1998): 39–50. http://dx.doi.org/10.5860/crl.59.1.39.
Full textAbstract:
This OPAC transaction log analysis study compared data derived from two sets of logs within a six-month period. Analysis of the first set of data revealed that users experienced difficulty with basic searching techniques. The OPAC introductory screens were simplified and clarified to help users improve search success rates. The second set of data, analyzed after screen changes had been made, showed statistically significant differences in search results. Regular monitoring of OPACs through transaction log analysis can lead to improved retrieval when changes are made in response to an analysis of user search patterns.
14
Klauß, Henning. "RDA: Folgen für die Katalogisierung und die OPAC-Gestaltung." Bibliotheksdienst 47, no. 3-4 (April 3, 2013): 225–30. http://dx.doi.org/10.1515/bd-2013-0024.
Full textAbstract:
Zusammenfassung: Das Regelwerk RDA wird einige Veränderungen für den Katalog von Bibliotheken erbringen, die für Benutzer hilfreich sind. Dieser Fortschritt wird auch für die Katalogisierer und die Gestaltung des OPACs Fortentwicklungen erzwingen. Hierfür muss die in Bibliotheken verwendete Software sowohl hinsichtlich Katalogisierung wie OPAC fortentwickelt werden, was anhand von Beispielen gezeigt wird.
15
Kukuev, E. I. "Juvenile Individuals of Opahs (Lampridae) from the Atlantic and Pacific Oceans. Notes on the Systematics and Distribution of Opahs, Including the Description of a New Subgenus, Paralampris subgen. nov." Journal of Ichthyology 61, no. 2 (March 2021): 182–89. http://dx.doi.org/10.1134/s0032945221020089.
Full textAbstract:
Abstract Juvenile specimens of opahs (Lampridae) from the Southwest Atlantic, southeastern Pacific Ocean, and Gulf of Guinea are described. A taxonomic review of the composition of the family Lampridae is carried out, taking into account the recent revision of opah species of the genus Lampris and our own data. A new subgenus, Paralampris subgen. nov., has been identified.
16
Sukiasyan, E. R. "Dialog with OPAC." Scientific and Technical Libraries, no. 3 (March 24, 2020): 23–36. http://dx.doi.org/10.33186/1027-3689-2020-3-23-36.
Full textAbstract:
The author raises the issue of dialogue between the OPAC and the user. The card catalog had a reference apparatus system that guided the reader's work and assisted in the search process. If OPAC came to replace card catalogs, we have the right to consider dialogue a tool of any OPAC. It is proved that the card systematic catalog possessed cognitive, developing functions. However, this cannot be said about OPAC. It was expected that the OPAC would have the Knowledge Base in the form of an easy-to-view hierarchical classification schedules with an alphabetical index. But neither the dialogue nor the Knowledge Base of OPAC in the libraries of the country have. If at the input stage employees have some opportunities to clarify their decisions, then at the search stage the user is completely deprived of them. He formulates the request using his own “thesaurus”, which the program may not accept. The problems of equipping OPAC with reference information for the user, the general principles of working with OPAC are considered. The features of forming the heading of the bibliographic record are shown. The conclusion is made: questions of a thematic search in the OPAC have remained unresolved so far. The rights and possibilities of the user related to the work of OPAC are significantly limited. Many shortcomings could be resolved through dialogue. However, a situation has arisen in the country when potential participants in such a dialogue (system developers, cataloguers and bibliographers in libraries, OPAC’s users) do not meet each other for joint analysis of OPAC. Then, perhaps, the dialogue would appear in the catalog itself, where it is not today.
17
Ringuet, J., E. Leoz-Garziandia, H. Budzinski, E. Villenave, and A. Albinet. "Particle size distribution of nitrated and oxygenated polycyclic aromatic hydrocarbons (NPAHs and OPAHs) on traffic and suburban sites of a European megacity: Paris (France)." Atmospheric Chemistry and Physics Discussions 12, no. 6 (June 6, 2012): 14169–96. http://dx.doi.org/10.5194/acpd-12-14169-2012.
Full textAbstract:
Abstract. The size distribution of particulate nitrated and oxygenated polycyclic aromatic hydrocarbons (NPAHs and OPAHs) was determined during two field campaigns at a traffic site in summer 2010 and at a suburban site during the MEGAPOLI (Megacities: Emissions, urban, regional and Global Atmospheric POLlution and climate effects, and Integrated tools for assessment and mitigation) experiment in summer 2009. Both, OPAHs and NPAHs were strongly associated (>85%) to fines particles (Dp < 2.5 μm) increasing the interest of their study on a sanitary point of view. Results showed really different NPAH and OPAH particle size distributions between both sites. At traffic site, clearly bimodal (notably for NPAHs) particle size distributions (Dp = 0.14 and 1.4 μm) were observed, while the particle size distributions were more scattered at the suburban site, especially for OPAHs. Bimodal particle size distribution observed at traffic site for the NPAH could be assigned to the vehicle emissions and the particle resuspension. Broadest distribution observed at the suburban site could be attributed to the mass transfer of compounds by volatilization/sorption processes during the transport of particles in the atmosphere. Results also showed that the combination of the study of particle size distributions applied to marker compounds (primary: 1-nitropyrene; secondary: 2-nitrofluoranthene) and to NPAH or OPAH chemical profiles bring some indications on their primary and/or secondary origin. Indeed, 1,4-anthraquinone seemed only primary emitted by vehicles while 7-nitrobenz[a]anthracene, benz[a]antracen7,12-dione and benzo[b]fluorenone seemed secondarily formed in the atmosphere.
18
Ringuet, J., E. Leoz-Garziandia, H. Budzinski, E. Villenave, and A. Albinet. "Particle size distribution of nitrated and oxygenated polycyclic aromatic hydrocarbons (NPAHs and OPAHs) on traffic and suburban sites of a European megacity: Paris (France)." Atmospheric Chemistry and Physics 12, no. 18 (September 28, 2012): 8877–87. http://dx.doi.org/10.5194/acp-12-8877-2012.
Full textAbstract:
Abstract. The size distribution of particulate nitrated and oxygenated polycyclic aromatic hydrocarbons (NPAHs and OPAHs) was determined during two field campaigns at a traffic site in summer 2010 and at a suburban site during the MEGAPOLI (Megacities: Emissions, urban, regional and Global Atmospheric POLlution and climate effects, and Integrated tools for assessment and mitigation) experiment in summer 2009. Both, OPAHs and NPAHs were strongly associated (>85%) to fine particles (Dp< 2.5 μm) increasing the interest of their study on a sanitary point of view. Results showed really different NPAH and OPAH particle size distributions between both sites. At traffic site, clearly bimodal (notably for NPAHs) particle size distributions (Dp = 0.14 and 1.4 μm) were observed, while the particle size distributions were more scattered at the suburban site, especially for OPAHs. Bimodal particle size distribution observed at traffic site for the NPAH could be assigned to the vehicle emissions and the particle resuspension. Broadest distribution observed at the suburban site could be attributed to the mass transfer of compounds by volatilization/sorption processes during the transport of particles in the atmosphere. Results also showed that the combination of the study of particle size distributions applied to marker compounds (primary: 1-nitropyrene; secondary: 2-nitrofluoranthene) and to NPAH or OPAH chemical profiles bring some indications on their primary and/or secondary origin. Indeed, 1,4-anthraquinone seemed only primary emitted by vehicles while 7-nitrobenz[a]anthracene, benz[a]antracen7,12-dione and benzo[b]fluorenone seemed secondarily formed in the atmosphere.
19
Sonego, Elisa, Bina Bhattarai, and Lene Duedahl-Olesen. "Detection of Nitrated, Oxygenated and Hydrogenated Polycyclic Aromatic Compounds in Smoked Fish and Meat Products." Foods 11, no. 16 (August 13, 2022): 2446. http://dx.doi.org/10.3390/foods11162446.
Full textAbstract:
Polycyclic aromatic hydrocarbons (PAHs) are present in smoked food products. More toxic nitrated (NPAH) and oxygenated (OPAH) PAHs derivatives are found concomitantly to PAHs and are therefore believed to be found in smoked food products. However, only a few PAH analyses on food include these derivatives. We adjusted and successfully validated a GC-QTOFMS method including 13 NPAHs and 2 OPAHs as well as the 4 regulated PAHs for analysis of 14 smoked (13 fish and one bacon) and one pan fried fish samples.OPAHs were detected in the highest concentrations in 13 of 15 samples. Non-target screening revealed the presence of an additional four OPAHs and two methylated PAHs. Future food analysis should, based on these results, focus on PAH and oxygenated derivatives.
20
Chilimo, Wanyenda. "NEXT-GENERATION CATALOGUES: HOW ARE THE ACADEMIC LIBRARIES IN KENYA FARING?" Mousaion: South African Journal of Information Studies 32, no. 3 (September 30, 2016): 93–118. http://dx.doi.org/10.25159/0027-2639/1679.
Full textAbstract:
The library catalogue has changed over the years from a card catalogue to its electronic successor, the Online Public Access Catalogue (OPAC), to what is called the next-generation library catalogue, sometimes referred to as the library 2.0 catalogue or ‘the third-generation catalogue’. The purpose of this study was to investigate the current state of catalogues in academic libraries in Kenya and to evaluate whether these libraries have incorporated features of the next-generation catalogues in their OPACs. The study applied a checklist of features commonly identified as characteristics of the next-generation catalogue to examine whether the OPACs of university libraries in Kenya are comparable to the next-generation library catalogue. The findings of the study showed that libraries in Kenya have made some progress towards transforming their OPACs to the next-generation catalogue but have not reached the ideal. None of the OPACs has all the features evaluated. Progress has been made with features, such as enhanced content, simple keyword search and faceted navigation. However, none of the catalogues has federated searching capabilities. The study also found out that close to half of the libraries which have their OPACs available online are using Koha as their Library Management System (LMS). This article provides valuable information for library policy makers interested in modernising their catalogues or acquiring discovery tools for their institution. The article may also be a useful tool for evaluating OPACs modules of the integrated LMS, especially for libraries that are in the process of selecting a suitable LMS.
21
Sari, Anisa Kartika, Agus Nuryanto, and Agus Hery Susanto. "KARAKTERISASI BEBERAPA STRAIN GURAMI Osphronemus gouramy Lac. MENGGUNAKAN MARKA RAPD." Scripta Biologica 1, no. 1 (March 25, 2014): 109. http://dx.doi.org/10.20884/1.sb.2014.1.1.35.
Full textAbstract:
Giant gouramy, Osphronemus gouramy Lac. is a popular fish species in Indonesia, especially in Java and Sumatera as this freshwater fish species has a high economic value of stable price. Fish farmers in Bogor divide giant gouramy into six strains based on egg productivity, growth rate, and maximum weight of the adult. They are soang, jepang, blue saphire, paris, bastar, and porselin. These various strains lead to the need of study on the genetic relationship among them, which can be performed by the use of RAPD (Random Amplified Polymorphic DNA) marker. This study aims to determine primers producing consistent and polymorphic RAPD markers, determine specific RAPD markers, and know the genetic relationship among several giant gouramy strains. The strains used in this study are soang, jepang, and blue saphire. Survey method was applied employing purposive random sampling technique. Total genomic DNA was isolated using Genjettm genomic DNA purification kit (Fermentas), which was then used as template to amplify RAPD markers with primers OPA-07, OPA-09, OPA-11, OPA-20, OPAH-01, OPAH-08, OPAH-09, and OPAC-14. The variables examined were patterns and numbers of specific DNA fragments as the PCR amplification products. Selected primers were determined descriptively on the basis of specific DNA bands appearing on the agarose gel. Genetic diversity was predetermined by changing qualitative band pattern into quantitative binnary data. Genetic relationship was analyzed using cladistic method with PAUP software. The results showed that only five of the eight primers produce consistent and polymorphic RAPD markers, i.e. OPA-11, OPA-20, OPAH-1, OPAH-8, and OPAH-9. Specific RAPD markers which can be used to distinguish several gouramy strains are those amplified with OPA-20 of 786 bp, OPA-20 of 1,176 bp, OPAH-8 of 1,000 bp and OPAC-14 of 1,607 bp. Nervertheless, it was found that RAPD markers cannot be used to clearly determine genetic relationship among gouramy strains.
22
Osborne, Hollie M., and Andrew Cox. "An investigation into the perceptions of academic librarians and students towards next-generation OPACs and their features." Program 49, no. 1 (February 2, 2015): 23–45. http://dx.doi.org/10.1108/prog-10-2013-0055.
Full textAbstract:
Purpose – The purpose of this paper is to determine whether features of next-generation Online Public Access Catalogue (OPAC) interfaces are useful and intuitive to users who have different levels of searching ability. In addition, it investigates whether there is a difference between librarians’ and students’ preferences for specific features. Design/methodology/approach – The research is based on 18 semi-structured interviews conducted in July 2012 with three groups of library users from The University of Sheffield: librarians; Master of Arts Librarianship students; and a group of other post-graduate students. Findings – Overall, this study suggests that while the next-generation catalogue interfaces and features are useful, they are not as “intuitive” as some previous studies have claimed. Interviewees appeared to prefer the searching and browsing options over the Web 2.0 features. Both librarians and students have similar opinions regarding the usefulness of next-generation OPAC features, but preferences are complex. Research limitations/implications – The study is based on one institution, and the disciplinary background of the post-graduate students was limited. Practical implications – Promoting next generation OPACs and explaining their features to users is essential. Originality/value – The paper adds to the understanding of users’ preferences in relation to next-generation OPACs, locating the findings of the current findings firmly in the context of previous literature.
23
Wells, David. "Online Public Access Catalogues and Library Discovery Systems." KNOWLEDGE ORGANIZATION 48, no. 6 (2021): 457–66. http://dx.doi.org/10.5771/0943-7444-2021-6-457.
Full textAbstract:
This article provides an overview of computer based catalogue systems designed for use by library clients, seeing present day ‘discovery systems’ on the same trajectory as the older ‘online public access catalogues’ (OPACs) which they are gradually replacing, both in technical development and their approach to client use scenarios. It traces the history of the OPAC/discovery system from its origins in the library automation of the 1960s through to the present and discusses the main technical standards which have formed its development. The article goes on to consider questions relating to the usability of electronic library catalogues and highlights semiotic and ethical issues inherent to their design. It concludes with reflections on the future of the OPAC/discovery system in an information universe apparently dominated by the internet search engine.
24
Tassani, Thomas. "L'Agenzia delle entrate di fronte al trust." gennaio-febbraio, no. 1 (February 3, 2022): 17–25. http://dx.doi.org/10.35948/1590-5586/2022.46.
Full textAbstract:
TesiL’Agenzia delle Entrate, con la bozza di circolare pubblicata ad agosto 2021, ha annunciato un importante mutamento interpretativo per quanto attiene la fiscalità dei trust, nelle imposte sui trasferimenti, accogliendo la tesi della tassazione “in uscita”, così come definita dalla giurisprudenza della Corte di Cassazione. Il nuovo paradigma teorico si fonda sull’apprezzamento del trust (e dei “vincoli di destinazione”) quale fattispecie “a formazione progressiva”; la fattispecie, infatti, non risulta completa al momento della segregazione patrimoniale, essendo destinata ad evolvere e mutare nello sviluppo della vicenda negoziale, fino a perfezionarsi con l’attribuzione definitiva al beneficiari. Ciò determina rilevanti conseguenze dal punto di vista dell’an, del quantum e del quando dell’imposizione. Se alcuni di questi aspetti sono correttamente individuati nella bozza di circolare, altri risultano invece ignorati. In particolare, l’Agenzia non chiarisce quale sia la dimensione formale della attribuzione rilevante ai fini della tassazione. L’applicazione dei principi del tributo donativo deve però condurre ad affermare l’imposizione solo qualora l’attribuzione risulti da un atto soggetto ad obbligo di registrazione, quindi escludendola nell’ipotesi di attribuzione c.d. informale, per la quale la tassazione sarà solo eventuale e successiva secondo le regole dell’art. 56-bis, TUSD. Non appare invece condivisibile la scelta interpretativa dell’Agenzia, compiuta nella bozza di circolare, di estendere l’ambito soggettivo della titolarità effettiva, ai fini degli obblighi di monitoraggio fiscale, a tutti i beneficiari “individuati o facilmente individuabili” di trust opachi non residenti. Infatti, in base al dato normativo vigente, può essere riconosciuto come titolare effettivo solo il beneficiario che vanta posizioni giuridiche vested, ossia colui che ha il diritto di pretendere dal trustee l’assegnazione del reddito o del patrimonio.The author's view The Italian Revenue Agency, with the draft circular published in August 2021, has announced an important change with regard to the taxation of trusts. The new paradigm is based on the appreciation of the trust as a case of "progressive formation"; the situation covered by the tax rule is not complete at the time of the segregation of assets, since it is destined to evolve and change, until the final allocation to the beneficiaries. This has important consequences in terms of taxation. The Agency does not clarify what is the formal dimension of the attribution relevant for taxation purposes. The application of the principles of the gift tax must, however, lead to affirm the taxation only if the attribution results from a deed subject to registration, thus excluding it in the hypothesis of the so-called informal attribution, for which the taxation will be only possible according to the rules of art. 56-bis, TUSD. On the other hand, the Agency's decision to extend the concept of beneficial owner, for the purposes of tax monitoring obligations, to all 'identified or easily identifiable' beneficiaries of discretional non resident trusts is not accetable. In fact, under the current legal framework, only the beneficiary who has vested legal positions, i.e. the one who has the right to claim the allocation of income or assets from the trustee, can be recognised as a beneficial owner.
25
Brown, Christopher C. "Knowing Where They Went: Six Years of Online Access Statistics via the Online Catalog for Federal Government Information." College & Research Libraries 72, no. 1 (January 1, 2011): 43–61. http://dx.doi.org/10.5860/crl-68r1.
Full textAbstract:
As federal government information is increasingly migrating to online formats, libraries are providing links to this content via URLs or persistent URLs (PURLs) in their online public access catalogs (OPACs). Clickthrough statistics that accumulated as users visited links to online content in the University of Denver’s library OPAC were gathered over a six-year period and were analyzed. Among the conclusions were that DU users prefer online content over print for both newer and older documents and that there is great benefit in adding URLs above and beyond the URLs supplied by GPO cataloging.
26
Lewis, Peter. "Cost Savings and Service Strategies in the British National Bibliographic Service." Alexandria: The Journal of National and International Library and Information Issues 1, no. 2 (August 1989): 17–26. http://dx.doi.org/10.1177/095574908900100203.
Full textAbstract:
The British Library launched in 1986 a Catalogue Action Plan to deal with the long-term prospect of declining financial and manpower resources, the absence of growth in the market for its services, an unacceptably large backlog of uncatalogued materials, and a steadily increasing annual output of British publications to be catalogued. The initial phase of the Plan was designed to contain staff costs by reduction and simplification in data content in BNBMARC and other British Library records, predicating their future use primarily in an online (OPAC) environment. It has had significant success for the British Library's aims in the first full year of implementation, but it has raised questions of the cost-benefit in centralized cataloguing services for the library community, in respect both of the costs and sizing of OPAC systems in local libraries and of the necessity of sustaining indefinitely the high cost of adherence to international standards established before OPACs, the CD-ROMs and OSI had changed the technology.
27
Alchapar, Noelia Liliana, Cláudia Cotrim Pezzuto, and Erica Norma Correa. "Parámetros urbanos morfo-materiales y su correlación con las temperaturas de aire en verano." Ambiente Construído 18, no. 4 (October 2018): 199–213. http://dx.doi.org/10.1590/s1678-86212018000400301.
Full textAbstract:
Resumen Con el objetivo de determinar y comparar la eficiencia de diversas estrategias de enfriamiento urbano en dos ciudades Latinoamericanas (Mendoza, Argentina y Campinas, Brasil) fueron analizados 18 escenarios que modifican su porcentaje de vegetación y nivel de albedo en materiales opacos de la envolvente urbana. Los escenarios fueron simulados con un modelo de alta resolución microclimática - ENVI-met 3.1. Mediante el Análisis de Componentes Principales se evaluaron las posibles asociaciones entre variables. Como resultado se observó que el porcentaje de vegetación y el albedo medio de las superficies opacas urbanas explica el 71,5 % de los comportamientos dentro de los canales viales evaluados en ambas ciudades. El incremento de vegetación podría disminuir la temperatura media en Mendoza hasta 2,0 ºC, mientras que en Campinas hasta 5,0 ºC. Aumentar el nivel de albedo en la envolvente urbana eleva hasta 1,0 ºC las temperaturas de aire en escenarios de alta densidad de Mendoza y Campinas. No obstante, en el caso de los escenarios con alto albedo en superficies horizontales y bajo albedo en verticales, se registraron reducciones de 2,0 ºC en la ciudad de Mendoza y de 3,0 ºC en Campinas.
28
Wu, Dan, and Renmin Bi. "Impact of device on search pattern transitions." Electronic Library 35, no. 4 (August 7, 2017): 650–66. http://dx.doi.org/10.1108/el-10-2016-0239.
Full textAbstract:
Purpose This paper discusses the differences in search pattern transitions for mobile phone, tablet and desktop devices by mining the transaction log data of a library online public access catalogue (OPAC). We aimed to analyze the impacts of different devices on user search behavior and provide constructive suggestions for the development of library OPACs on different devices. Design/methodology/approach Based on transaction logs which are 9 GB in size and contain 16,140,509 records of a university library OPAC, statistics and clustering were used to analyze the differences in search pattern transitions on different devices in terms of two aspects: search field transition patterns and query reformulation patterns. Findings Search field transition patterns are influenced by the input function and user interfaces of different devices. As reformulation times increase, the differences between query reformulation patterns among different devices decrease. Practical implications Mobile-side libraries need to optimize user interfaces, for example by setting web page labels and improving input capabilities. Desk-side libraries can add more suggestive content on the interface. Originality/value Unlike previous studies, which have analyzed web search, this paper focuses on library OPAC search. The search function of mobile phones, tablets and desktops were found to be asymptotic, which was a good illustration of how devices have a large impact on user search behavior.
29
Santos, João Ubiratan Moreira dos, Maria de Nazaré Do Carmo Bastos, Ely Simone Cajueiro Gurgel, and Ana Cristina Magalhães Carvalho. "Bertholletia excelsa Humboldt & Bonpland (Lecythidaceae): aspectos morfológicos do fruto, da semente e da plântula." Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais 1, no. 2 (March 31, 2021): 103–12. http://dx.doi.org/10.46357/bcnaturais.v1i2.745.
Full textAbstract:
Bertholletia excelsa Humboldt & Bonpland, conhecida popularmente como castanha-do-pará e castanha-do-brasil, é uma árvore que pode atingir até 50 m, ocorre em toda a região amazônica, sendo característica das matas altas de terra firme não inundáveis. Suas castanhas ou sementes são muito apreciadas, internacionalmente conhecidas, constituindo um dos principais produtos de exportação da Amazônia. Objetivou-se, com este estudo, descrever a morfologia do fruto, da semente e da plântula da referida espécie, utilizando-se 30 frutos, 30 sementes e 10 plântulas. Registrou-se, dos frutos, a morfologia geral, a coloração, a textura, a consistência, a deiscência e o indumento; das sementes, o tegumento e o embrião, bem como os principais elementos vegetativos das plântulas. Considerou-se plântula a fase de desenvolvimento em que os eófilos estavam totalmente formados. Fundamentou-se todo o estudo em literatura especializada e ilustraram-se os principais caracteres morfológicos com fotografias. A espécie estudada apresenta fruto simples, do tipo cápsula poricida, indeiscente, bisseriado, pedúnculo opaco, em tons castanhos, superfície glabra e fibrosa; pericarpo castanho escuro, opaco, crustáceo, glabro, levemente fibroso e septado; funículo em tons castanhos e lenhoso. Semente triangular angulosa axilar e estenospérmica; testa castanho claro, superfície opaca, rugosa e glabra e de consistência lígnea; rafe em tons castanho escuros, rígida e saliente, hilo oblongo e em depressão; embrião conferruminado. Germinação criptocotiledonar hipógea. Plântula com eófilos simples, alternos, obovóides, ápice agudo, margem serreada e castanha avermelhada, base simétrica e atenuada, peninérveos, craspedródomos e prefolheação revoluta; hipocótilo ausente; epicótilo epígeo, cilídrico, lenticelado, com muitos catáfilos triangulares e lanceolados.
30
Elzein, Atallah, Rachel E. Dunmore, Martyn W. Ward, Jacqueline F. Hamilton, and Alastair C. Lewis. "Variability of polycyclic aromatic hydrocarbons and their oxidative derivatives in wintertime Beijing, China." Atmospheric Chemistry and Physics 19, no. 13 (July 10, 2019): 8741–58. http://dx.doi.org/10.5194/acp-19-8741-2019.
Full textAbstract:
Abstract. Ambient particulate matter (PM) can contain a mix of different toxic species derived from a wide variety of sources. This study quantifies the diurnal variation and nocturnal abundance of 16 polycyclic aromatic hydrocarbons (PAHs), 10 oxygenated PAHs (OPAHs) and 9 nitrated PAHs (NPAHs) in ambient PM in central Beijing during winter. Target compounds were identified and quantified using gas chromatography–time-of-flight mass spectrometry (GC-Q-ToF-MS). The total concentration of PAHs varied between 18 and 297 ng m−3 over 3 h daytime filter samples and from 23 to 165 ng m−3 in 15 h night-time samples. The total concentrations of PAHs over 24 h varied between 37 and 180 ng m−3 (mean: 97±43 ng m−3). The total daytime concentrations during high particulate loading conditions for PAHs, OPAHs and NPAHs were 224, 54 and 2.3 ng m−3, respectively. The most abundant PAHs were fluoranthene (33 ng m−3), chrysene (27 ng m−3), pyrene (27 ng m−3), benzo[a]pyrene (27 ng m−3), benzo[b]fluoranthene (25 ng m−3), benzo[a]anthracene (20 ng m−3) and phenanthrene (18 ng m−3). The most abundant OPAHs were 9,10-anthraquinone (18 ng m−3), 1,8-naphthalic anhydride (14 ng m−3) and 9-fluorenone (12 ng m−3), and the three most abundant NPAHs were 9-nitroanthracene (0.84 ng m−3), 3-nitrofluoranthene (0.78 ng m−3) and 3-nitrodibenzofuran (0.45 ng m−3). ∑PAHs and ∑OPAHs showed a strong positive correlation with the gas-phase abundance of NO, CO, SO2 and HONO, indicating that PAHs and OPAHs can be associated with both local and regional emissions. Diagnostic ratios suggested emissions from traffic road and coal combustion were the predominant sources of PAHs in Beijing and also revealed the main source of NPAHs to be secondary photochemical formation rather than primary emissions. PM2.5 and NPAHs showed a strong correlation with gas-phase HONO. 9-Nitroanthracene appeared to undergo a photodegradation during the daytime and showed a strong positive correlation with ambient HONO (R=0.90, P < 0.001). The lifetime excess lung cancer risk for those species that have available toxicological data (16 PAHs, 1 OPAH and 6 NPAHs) was calculated to be in the range 10−5 to 10−3 (risk per million people ranges from 26 to 2053 cases per year).
31
Chen, T., R. J. Belland, J. Wilson, and J. Swanson. "Adherence of pilus- Opa+ gonococci to epithelial cells in vitro involves heparan sulfate." Journal of Experimental Medicine 182, no. 2 (August 1, 1995): 511–17. http://dx.doi.org/10.1084/jem.182.2.511.
Full textAbstract:
Neisseria gonorrhoeae attaches to host epithelial cells via pili and opacity-associated (Opa) outer membrane proteins. Pilus- gonococci (Gc) of strain MS11 adhere to both human and nonhuman cells, but only when particular Opa proteins are expressed; OpaA+ variants adhere best, OpaC+ variants are next best, and the seven other Opa+ variants adhere poorly or not at all. The adherence of OpaA+ Gc to Chinese hamster ovary (CHO) cells is inhibited by heparin or heparan sulfate (HS), but not by chondroitin sulfate. OpaA+ Gc do not adhere to CHO cells devoid of HS proteoglycans; low concentrations of heparin restore OpaA+ Gc adherence to these HS-deficient CHO cells and high concentrations inhibit it. 3H-heparin binding to whole Gc parallels their adherence abilities (OpaA+ > OpaC+ > OpaH+ > Opas B, D, E, F, G, I = Opa- = 0). Opa proteins separated by SDS-PAGE also bind 3H-heparin. These data suggest that adherence of pilus-, Opa+ Gc involves HS-proteoglycan of eukaryotic cells.
32
Bachta, Sara, Nora Kassouri, Fahima Bellagoune, Meriem Aoufi, Saadia Lougani, Abdelkrim Saadi, and Wahiba Amer El-Khedoud. "VCP-opathie probale." Revue Neurologique 176 (September 2020): S4. http://dx.doi.org/10.1016/j.neurol.2020.01.058.
Full text
33
de Groot, Peter, and Therese M. Poland. "Attraction of Hylastes opacus (Coleoptera: Scolytidae) to nonanal." Canadian Entomologist 135, no. 2 (April 2003): 309–11. http://dx.doi.org/10.4039/n02-102.
Full textAbstract:
Hylastes opacus Erichson is a recently introduced bark beetle in North America (Bright and Skidmore 1997; Hoebeke 1994; Rabaglia and Cavey 1994; Wood 1992). It is widely distributed in the Palearctic region, where it usually breeds in stumps and roots of dead or dying pines (Pinus) and occasionally other conifers (Hoebeke 1994). Like many species of bark beetles, H. opacus uses host volatiles as cues to search for suitable host material for feeding and establishment of broods. Hoebeke (1994) reported the attraction of H. opacus to ethanol-baited logs of Scots pine (Pinus sylvestris L.) and red pine (Pinus resinosa Ait.) in New York, United States of America. In Sweden, Schroeder and Lindelöw (1989) observed H. opacus responding to (−)-α-pinene and to ethanol released separately, but a synergistic increase in response did not occur when these two compounds were released together. In later experiments, Lindelöw et al. (1993) found that traps baited with ethanol alone, ethanol + (−)-α-pinene, and spruce turpentine caught significantly more H. opacus than unbaited traps. In these experiments, (−)-α-pinene alone was not attractive, and when (−)-α-pinene was combined with spruce turpentine and ethanol, it reduced catches of H. opacus. In 2002, while investigating attractants for the pine shoot beetle, Tomicus piniperda (L.) (TM Poland, P de Groot, S Burke, D Wakarchuk, RA Haack, and RW Nott, unpublished data), we unexpectedly found significant numbers of H. opacus in one of our experiments. Here we report that H. opacus is strongly attracted to nonanal.
34
Lacerda, Maria Juliana Ribeiro, Nadja Susana Mogyca Leandro, Maria Auxiliadora Andrade, Juliana Bonifácio Alcântara, Maria Luiza Ferreira Stringhini, and Marcos Barcellos Café. "QUALIDADE FÍSICA E BACTERIOLÓGICA DE OVOS OPACOS DE CODORNAS SANITIZADOS, REFRIGERADOS E CONTAMINADOS EXPERIMENTALMENTE PORSalmonella enterica SER. TYPHIMURIUM." Ciência Animal Brasileira 17, no. 1 (March 2016): 11–25. http://dx.doi.org/10.1590/1089-6891v17i118546.
Full textAbstract:
Resumo Objetivou-se estudar a qualidade física, química e microbiológica de ovos de codornas contaminados artificialmente com Salmonella entericaser. Typhimurium, sanitizados e armazenados a diferentes temperaturas (5 e 25 ºC), durante 27 dias. Foram utilizados 768 ovos com cascas opacas e peso médio de 11g. O delineamento foi inteiramente casualizado em esquema fatorial 2x2x2 (contaminação x sanitização x refrigeração) com seis repetições e um ovo por parcela. Os ovos foram contaminados pelo manuseio com 1,5 x 105unidade formadoras de colônias (UFCs) e, de acordo com os tratamentos, foram sanitizados com solução com 5 ppm de Cl. Os dados foram submetidos à análise de variância e teste t. A contaminação bacteriana prejudicou o peso do ovo, uH, índice de gema e de albume e pH de gema e de albume, a partir de 18 dias de armazenamento. O tempo de estocagem dos ovos e a temperatura de armazenamento influenciaram a qualidade interna dos ovos de codornas em todas as variáveis estudadas. A pior qualidade interna foi observada em ovos armazenados na temperatura de 25 ºC. A sanitização e a refrigeração reduziram o crescimento daSalmonella nos ovos contaminados. Ovos com casca opaca, quando não refrigerados, devem ser consumidos em até 18 dias após a postura.
35
Machado, Wellington Monteiro, and José Morceli. "Prevalência, classificação e características do refluxo cecoileal diagnosticado pelo enema opaco." Radiologia Brasileira 39, no. 2 (April 2006): 107–11. http://dx.doi.org/10.1590/s0100-39842006000200007.
Full textAbstract:
OBJETIVO: Verificar, retrospectivamente, a prevalência do refluxo cecoileal diagnosticado pelo enema opaco, caracterizar sua distribuição etária e sexual e classificá-lo conforme o grau de intensidade. MATERIAIS E MÉTODOS: Foram revistos 715 enemas opacos, incluindo 268 homens e 447 mulheres com idade média de 54 anos. RESULTADOS: Dos 715 casos examinados, 46,5% apresentaram refluxo cecoileal, sendo 45% do tipo leve, 37,5% do tipo moderado e 17,5% do tipo severo. Refluxo cecoileal esteve presente em 48,3% das mulheres e em 43,6% dos homens. A distribuição percentual do refluxo cecoileal por faixa etária mostrou 46,1% nos indivíduos com menos de 21 anos, 42,1% nos indivíduos entre 21-40 anos, 49,8% nos indivíduos entre 41-60 anos e 44,7% nos indivíduos com mais de 60 anos. CONCLUSÃO: Refluxo cecoileal foi achado relativamente freqüente em nosso material, correspondendo os graus moderado e severo a 25% do material examinado. Aparentemente, não há associação entre seu surgimento e sexo ou idade. A etiopatogenia e conseqüências do refluxo cecoileal são ainda pouco conhecidas. Alguns estudos sugerem que o comprometimento de componentes da junção ileocecal, como os ligamentos, pode favorecer seu aparecimento. Entre as conseqüências prováveis, incluem-se a contaminação e alteração motora ileais, resultantes do material refluído do ceco.
36
KRABBE, NIELS, and CARLOS DANIEL CADENA. "A taxonomic revision of the Paramo Tapaculo Scytalopus canus Chapman (Aves: Rhinocryptidae), with description of a new subspecies from Ecuador and Peru." Zootaxa 2354, no. 1 (February 9, 2010): 56. http://dx.doi.org/10.11646/zootaxa.2354.1.5.
Full textAbstract:
The nominate subspecies of the Paramo Tapaculo (Scytalopus canus Chapman), which is restricted to high elevations of the Western Andes of Colombia, differs substantially in song from S. c. opacus from the Central Andes of Colombia, Ecuador, and northern Peru. In accordance with current taxonomy of the genus, which is primarily based on differences in song, we assign species rank to both taxa. Within opacus, birds from southernmost Ecuador and northernmost Peru sing like northern opacus but call differently. They are indistinguishable morphologically except for a white patch in the wing present in 10 out of 12 of the adult males of the southern population. We describe this population as a new taxon and rank it as a subspecies of S. opacus. Genetically, S. canus, nominate S. opacus, and the new taxon are strongly differentiated (>5% divergence in mtDNA); the first two appear to be sister taxa.
37
Morrison, Pamela D., John H. Roberts, and Eric von Hippel. "Determinants of User Innovation and Innovation Sharing in a Local Market." Management Science 46, no. 12 (December 2000): 1513–27. http://dx.doi.org/10.1287/mnsc.46.12.1513.12076.
Full textAbstract:
It is known that end users of products and services sometimes innovate, and that innovations developed by users sometimes become the basis for important newcommercial products and services. It has also been argued and to some extent shown that such innovations will be found concentrated in a “lead user” segment of the user community. However, neither the characteristics of innovating users nor the scope of the community that they “lead” has been explored in depth. In this paper, we explore the characteristics of innovation, innovators, and innovation sharing by library users of OPAC information search systems in Australia. This market has capable users, but it is nonetheless clearly a “follower” with respect to worldwide technological advance. Wefind that 26% of users in this local market nonetheless do modify their OPACs in both major and minor ways, and that OPAC manufacturers judge many of these user modifications to be of commercial interest. We find that we can distinguish modifying from nonmodifying users on the basis of a number of factors, including their “leading-edge status” and their in-house technical capabilities. We find that many innovating users freely share their innovations with others, and find that we can distinguish users that share information about their modifications from users that do not. We conclude by considering some implications of our findings for idea generation practices in marketing.
38
Gurgel, Ely Simone Cajueiro, João Ubiratan Moreira dos Santos, Ana Cristina Magalhães Carvalho, and Maria de Nazaré Do Carmo Bastos. "Jacaranda copaia (Aubl.) D. Don. subsp. spectabilis (Mart. ex A. DC) Gentry (Bignoniaceae): aspectos morfológicos do fruto, semente, germinação e plântula." Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais 1, no. 2 (March 31, 2021): 113–20. http://dx.doi.org/10.46357/bcnaturais.v1i2.746.
Full textAbstract:
Jacaranda copaia (Aubl.) D. Don. subsp. spectabilis (Mart. ex A. DC) Gentry é a única espécie conhecida como Parapará na Amazônia. Ocorre nas florestas amazônicas de terra-firme, distribuindo-se nos estados do Amazonas, Pará, Mato Grosso, Tocantins, Roraima e boa parte dos estados do sul e do sudeste. A sua madeira é usada, principalmente, para a construção civil. Objetivou-se com este estudo descrever a morfologia do fruto, da semente e da plântula da referida espécie, utilizando-se 30 frutos, 30 sementes e 10 plântulas. Registrou-se a morfologia geral dos frutos, a coloração, a textura, a consistência, a deiscência e o indumento; das sementes, o tegumento e o embrião, bem como os principais elementos vegetativos das plântulas. Considerou-se plântula a fase de desenvolvimento em que os eófilos estavam totalmente formados. Fundamentou-se todo o estudo em literatura especializada e ilustraram-se os principais caracteres morfológicos com fotografias. Apresenta cápsula simples, seca, estenocárpica, elíptica a oblonga, deiscente, pericarpo opaco, imaturo verde e maduro e em tons castanhos quase negro, glabro e cartáceo; pedúnculo opaco, em tons castanhos, superfície glabra e fibrosa; funículo lenhoso e em tons castanhos. Semente alada, estenospérmica, cordiforme; testa monocrômica, em tons castanhos, opaca, esponjosa, superfície glabra; região hilar próxima ao ápice da radícula, hilo punctiforme, heterócromo, castanho mais claro que a testa, em depressão; micrópila não perceptível; tégmen castanho-claro e membranáceo; embrião alargado, axial, foliáceo, invaginado, amarelo, cotilédones crassos, esbranquiçados, dominantes, cordiformes, com ápice profundamente bilobado, margem inteira, base arredondada, auriculado com a radícula exposta; eixo embrionário entre os lóbulos cotiledonares, reto, cônico, espesso, perolado; plúmula amarela, rudimentar. Germinação fanerocotiledonar epígea. Plântula com eófilos trifoliolados, opostos, simétricos, ovais, margem crenada, com pêlos hialinos e simples por todo o limbo, pecíolo canaliculado. Planta jovem com eófilos de 2ª ordem imparipinados, com cinco folíolos, filotaxia oposta cruzada.
39
Espitia-Rangel, Eduardo, Eliel Martínez-Cruz, Azalia Lozano-Grande, René Hortelano Santa Rosa, Miriam Valverde-Ramos, and Fernanda Sesma-Hernández. "Calidad panadera y galletera de mezclas de harina integral de amaranto y refinada de trigo." Revista Mexicana de Ciencias Agrícolas 13, no. 8 (December 13, 2022): 1433–43. http://dx.doi.org/10.29312/remexca.v13i8.3162.
Full textAbstract:
El desbalance entre la ingesta excesiva y gasto de energía debido al consumo de carbohidratos refinados y grasas puede asociarse a sobrepeso y obesidad, provocando un problema de salud pública como actualmente sucede en México. La harina refinada de trigo harinero en forma de pan dulce y galletas forman parte de esta ingesta. Una alternativa a esta problemática es la sustitución en la elaboración de estos productos por harina de granos integrales como el amaranto, para lo cual se debe caracterizar la masa, como su calidad panadera y galletera. Por lo que, el objetivo de la presente investigación fue evaluar las características reológicas de la masa, volumen de pan y factor galletero de mezclas de harina integral de amaranto y refinada de trigo. Las harinas integrales de amaranto se obtuvieron de las líneas denominadas opaca y cristalina y la harina refinada de trigo de las variedades Fuertemayo F2016 y Urbina S2007. Las mezclas con el 5, 10 y 15% de harina integral de amaranto opaco y cristalino disminuyeron la fuerza e incrementaron la tenacidad de la masa consecuentemente disminuyeron el volumen de pan y presentaron migas de color café y textura pobre. Por otro lado, las mezclas con 25% de harina integral de amaranto opaco y cristalino, así como la de 75% de harina integral de amaranto cristalino superaron el factor galletero de la variedad testigo 100% de harina refinada de trigo, mientras que el resto de las combinaciones se clasificaron como muy buenas por su factor galletero superior a 4.5. Con base en lo anterior la sustitución de harina de amaranto integral no disminuye el factor galletero por lo que se recomienda su uso en mezclas con harina refinada de trigo sin demeritar el rendimiento galletero caso contrario en la elaboración de pan donde disminuyó su volumen y por lo tanto el rendimiento panadero.
40
Śnioszek, Andrzej. "Sprawozdanie z konferencji naukowej Ewaluacje literatury – krytyka, teoria, historia." Śląskie Studia Polonistyczne 14, no. 2 (December 28, 2019): 319–23. http://dx.doi.org/10.31261/ssp.2019.14.20.
Full textAbstract:
A Report from the Academic Conference Evaluating Literature – Criticism, Theory, and History (Doctoral Candidates Research Circle at the Faculty of Philology and the Ireneusz Opacki Institute of the Study of Polish Literature, Faculty of Philology, University of Silesia, Katowice, 8th–9th April 2019)
41
Castillo, Eduardo. "SONIDO OPACO." AUS, no. 14 (2013): 31–34. http://dx.doi.org/10.4206/aus.2013.n14-08.
Full text
42
Bochurberg, Claude. "Plaidoyer pour l�opacit�." Sigila N�25, no. 1 (2010): 111. http://dx.doi.org/10.3917/sigila.025.0111.
Full text
43
Larson, D. J. "REVISION OF NORTH AMERICAN AGABUS LEACH (COLEOPTERA: DYTISCIDAE): THE OPACUS-GROUP." Canadian Entomologist 128, no. 4 (August 1996): 613–65. http://dx.doi.org/10.4039/ent128613-4.
Full textAbstract:
AbstractSpecies of the Agabus opacus- and lineellus-groups, as defined by Larson (1989), are combined and revised as members of the A. opacus-group. The A. opacus-group contains 13 species, namely: A. hypomelas Mannerheim, A. vancouverensis Leech, A. verisimilis Brown, A. vandykei Leech, A. wasastjernae (Sahlberg), A. opacus Aubé, A. confertus LeConte, A. euryomus sp.nov., A. walsinghami (Crotch), A. jimzim sp.nov., A. lineellus LeConte, A. discors LeConte, and A. austrodiscors sp.nov. Agabus wasastjernae and A. opacus are Holarctic and boreal; the remaining 11 species are confined to the Cordilleran region of western North America. Character distribution does not support recognition of subspecies of A. hypomelas, therefore A. hypomelas irregularis Mannerheim is regarded as a synonym of A. hypomelas. A lectotype is designated for A. discors LeConte. A phylogenetic tree of the hypothesized relationships between the species is presented.A key to the species of the group is included. For each species, the following information is provided: synonymy; description and illustration of taxonomically important characters; notes on relationships, variation, distribution, and ecology; and a map of North American collection localities.
44
Martin, Lynne M. "Evaluating OPACs, or, OPACs Are Reference Tools, Too!" Reference Librarian 17, no. 38 (August 7, 1992): 201–20. http://dx.doi.org/10.1300/j120v17n38_22.
Full text
45
Ro, Jung-Soon. "The Effectiveness of Hierarchic Clustering on Query Results in OPAC." Journal of the Korean Society for Library and Information Science 38, no. 1 (March 1, 2004): 35–50. http://dx.doi.org/10.4275/kslis.2004.38.1.035.
Full text
46
Henry, Marcia. "Regional Web pages for OPACs: the New York State Electronic Doorway Library Network and British Library OPAC 97." Campus-Wide Information Systems 14, no. 3 (September 1997): 75–77. http://dx.doi.org/10.1108/10650749710187662.
Full text
47
Dygdała, Jerzy. "Słownik biograficzny historyków Uniwersytetu Gdańskiego, red. Eugeniusz Koko, Zbigniew Opacki." Zapiski Historyczne LXXXVI, no. 4 (December 30, 2021): 191. http://dx.doi.org/10.15762/zh.2021.41.
Full text
48
Gonzales, Lorgio Gilberto Valdiviezo, Gabriela Alejandra Huamán Pino, and Maurício Leonardo Torem. "Electroflotation of cassiterite fines using a hydrophobic bacterium strain." Rem: Revista Escola de Minas 66, no. 4 (December 2013): 507–12. http://dx.doi.org/10.1590/s0370-44672013000400016.
Full textAbstract:
In this work, the electroflotation of cassiterite fine ranges using Rhodococcus opacus (R. opacus) as bioreagent has been carried out. The interaction between R. opacus and mineral surface was valued through the zeta potential, contact angles measurements and adsorption studies. Furthermore, studies were attempted to check the effect of current density and microorganism concentration on mean bubble size (Sauter). After the interaction, the resulting particles exhibited hydrophobic characters, as verified by the increase of the contact angle. Also, the electrophoretic mobilities of cassiterite particles showed a mean value close to zero after interaction with R. opacus. The measurement of bubble size by laser diffraction showed a mean bubble size of 26µm. Current density and bacterial concentration seem to be the main parameters affecting the mean diameter of the bubbles. An electroflotation test reported recovery of around 64.5% at pH 5, concentration of 2.87x10¹² cells/ml (50 mg/L) and current density of 51.4 mA/cm².
49
Czyżewski, Bogdan Stanisław. "Zadania opata określone w prawodawstwie monastycznym kręgu św. Fruktuoza z Bragi." Vox Patrum 75 (September 15, 2020): 67–88. http://dx.doi.org/10.31743/vp.5948.
Full textAbstract:
Przedmiotem opracowania są pisma monastyczne zaliczane do kręgu św. Fruktuoza z Bragi. Jedno z nich - Reguła mnichów – wyszło spod pióra Fruktuoza, pozostałe powstały za jego czasów. Zawierają one obraz życia monastycznego na Półwyspie Iberyjskim. W strukturze organizacyjnej klasztorów najważniejszy był opat (abbas), którego zadania zostały dosyć dokładnie określone. Musiał posiadać wysokie kwalifikacje moralne i intelektualne, odpowiedzialny był za modlitwę w podległym mu klasztorze, ale też za każdego mnicha. Swoje obowiązki dzielił często z przełożonymi, przez co jego władza została nieco ograniczona. Opaci wykazywali się także postawami demokratycznymi, które w pewnym sensie zostały im narzucone przez Reguły. Polegały one na tym, że wraz z przełożonymi i starszymi dzielili odpowiedzialność za życie w klasztorze, opat i starsi nakładali na mnichów kary, ważne zaś decyzje zapadały na tak zwanej radzie braci. Demokracja w klasztorach fruktuozjańskich przejawiała się także w tym, że istniał związek pomiędzy klasztorami. Polegał on na tym, że opaci spotykali się, być może raz w miesiącu, by zapewnić wspólną dyscyplinę w podległych im klasztorach.
50
Cortwright, Spencer A. "Intraguild predation and competition: an analysis of net growth shifts in larval amphibian prey." Canadian Journal of Zoology 66, no. 8 (August 1, 1988): 1813–21. http://dx.doi.org/10.1139/z88-262.
Full textAbstract:
This study examines the net shift in prey growth among species of aquatic salamander larvae (Ambystoma) that engage in intraguild prédation and competition with their predators. Larval salamander and frog species were studied in a pen experiment in a natural pond. A 2 × 3 factorial experimental design was used. The factors were (i) the presence (11 per pen) or absence of Ambystoma opacum predators, and (ii) three levels of Ambystoma jeffersonianum (42, 84, and 168 per pen), a prey species that also shares resources with A. opacum. All other species were stocked at constant levels. Mass at metamorphosis of A. jeffersonianum was not affected by predator presence. The larval period of A. jeffersonianum (prey) decreased by 20 d in the presence of A. opacum (predators), suggesting enhanced differentiation rate when predators reduced prey populations. Ambystoma maculatum (another prey species) showed no growth responses across experimental treatments, probably because it faced predation from both A. opacum and A. jeffersonianum. A previous study showed that in the absence of both A. opacum and A. jeffersonianum predators, A. maculatum prey manifested reduced mass at metamorphosis. Thus, among these predators and prey, which share resources, the enhanced differentiation rate or larger metamorphic size that prey experienced in reduced prey populations was more important than any negative impact of depressed shared resource levels among predators and prey.