Objective. This study proposed a reflection on collection development for university libraries inspired by the Complexity Theory and Domain Analysis. A theoretical contribution was sought in Morin's Complexity Theory and in the social paradigm of Information Science, more specifically in Hjørland's Domain Analysis, to think about how guidelines could be woven for the Collection Development in university libraries in order to face the challenges of Contemporaneity. Method. . It establishes the Complexity Theory assumptions and the qualitative perspective to approach the problem. To do so, it relies on four analysis dimensions: the epistemological, the published thinking, the institutionalized thinking and of the current thinking. Results. The results indicate that collection development includes innumerous elements and faces difficulties, it is guided by institutional and users demands, it requires the participation of the academic community, including in drafting the policy, which should be aligned to the mission of the institution and constantly updated. Conclusions. It concludes that thinking about the guidelines for Collection Development, adopting the social perspective of the domain analysis and based on Morin’s tetralogical ring, contributes to the denudation of issues surrounding that process in university libraries

Objetivo. Pesquisa que propôs pensar o Desenvolvimento de Coleções em bibliotecas universitárias inspirado na Teoria da Complexidade e na Análise de Domínio. Buscou aporte teórico na Teoria da Complexidade de Morin e no paradigma social da Ciência da Informação, mais especificamente na Análise de Domínio de Hjørland, para pensar como poderiam ser tecidas diretrizes para o Desenvolvimento de Coleções em bibliotecas universitárias de forma a enfrentar os desafios da contemporaneidade. Método. Estabelece como caminho metodológico os pressupostos da Teoria da Complexidade e a perspectiva qualitativa para a abordagem do problema. Para tal, conta com quatro dimensões de análise: epistemológica, do pensamento registrado, do pensamento institucionalizado e do pensamento vigente Resultados. Os resultados indicam que o Desenvolvimento de Coleções engloba inúmeros elementos e enfrenta dificuldades, é orientado ao atendimento das demandas da instituição e usuários, requer a participação da comunidade acadêmica, inclusive na elaboração da política, que deve ser alinhada à missão da instituição e atualizada constantemente. Conclusão. Conclui que pensar sobre as diretrizes para o Desenvolvimento de Coleções, adotando a perspectiva social da Análise de Domínio e baseado no anel tetralógico de Morin, contribui para o desnudamento de questões que envolvem esse processo em bibliotecas universitárias.

ABSTRACT The addition of organic residues to agricultural soils has been used as a practical alternative to improve crop quality and health. The objective of this work was to evaluate maize physiological and nutritional responses to the application of compost and biochar combined with urea (N) and N-(n-butyl) thiophosphoric triamide (NBPT). The experiment was performed in plastic pots with 3 kg of soil under greenhouse conditions for 30 days. The compost and biochar were applied at the rate of 0.3 ton ha-1, using an amount of nutrient (nitrogen, phosphorus and potassium) demanded by crop growth. The physiological responses of maize were monitored by measuring the plant height, stalk diameter, leaf chlorophyll content, shoot dry weight and root dry weight. The nutritional responses of maize were assessed by using the nutrient concentration and the total nutrient assimilation by the plants. The results showed that the addition of compost or biochar did not alter the maize physiological response compared to the addition of mineral fertilizer used under the same conditions. However, a difference occurred in the maize nutritional responses to the compost and biochar amendments combined with urea and NBPT. The greatest N concentration in maize was observed in the treatment consisting of biochar combined with urea + NBPT. All the treatments in which compost or biochar was applied in combination with urea and NBPT presented greater total N assimilation compared to the treatment with conventional fertilization. The results of this survey showed that the combination of urea and NBPT improved the nitrogen-use efficiency of maize.

Pesquisa que mapeou as redes cognitivas na área de Ciência da Informação no Brasil, a partir da análise de citações dos artigos publicados nos principais periódicos desta área, no período de 2001 a 2005. É uma pesquisa quali-quantitativa, exploratória-descritiva e documental, que tem como corpus de análise os artigos científicos publicados nas principais revistas brasileiras da área, utilizando técnicas bibliométricas, para a análise dos dados. Constata que as redes cognitivas mais significativas na Ciência da Informação, no Brasil, podem ser mapeadas pelas comunidades estabelecidas pelas citações. Estas comunidades são formadas devido às afinidades temáticas, o que denota uma proximidade paradigmática, e pela proximidade institucional. Conclui que, no Brasil, a Ciência da Informação é conduzida por um grupo de pesquisadores, que interferem nas relações estabelecidas para o embasamento do desenvolvimento de estudos e pesquisas e, assim, determina o envolvimento disciplinar e interdisciplinar da área no país.

This research has mapped the cognitive networks in the area of Information Science in Brazil, based on an analysis of the citations of articles published in the main journals of this area from 2001 to 2005. It is a qualitative-quantitative, exploratory-descriptive and documental research. The corpus of analysis is the scientific articles published in the main Brazilian journals of this area. Bibliometric techniques were used for data analysis. The most important cognitive nets in Information Science in Brazil can be mapped by the communities established by the citations. These communities are established by thematic affinity, what shows a paradigmatic closeness, and by institutional relationship. The conclusion is that in Brazil Information Science is schemed by a group of researchers who handle the relations established for building up the development of studies and research and establish the disciplinary and interdisciplinary involvement of this area in Brazil.

This study focuses on the geographic distribution of the snail of the genus Biomphalaria and evaluates its infectivity by Schistosoma mansoni in 5264 specimens collected in the municipality of Juiz de Fora, Minas Gerais, Brazil. Of the 31 locations studied, 6 were reservoirs, 11 rudimentary holding ponds, 7 irrigation ditches, 5 lakes, 1 ornamental pond, and 1 waterfall. Intermediate hosts were found only in the rudimentary ponds and ditches, which were 100% positive. Using morphological and molecular analysis techniques, B. tenagophila, B. peregrina, and B. straminea were identified. This is the first report of B. stramínea in the municipality, and evaluation of its infective potential revealed susceptibility of 25.4%. Although we did not find specimens of Biomphalaria infected by S. mansoni, the data obtained indicate the presence of intermediate hosts, especially in the irrigation ditches in Juiz de Fora, and their proximity to contaminated areas.