21,761 research outputs found

    Companies’ Response to Consumerization and their Motivation Factors for Implementation

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    The use of private-owned technological devices for professional activities is an even frequent and inevitable phenomenon. The variety of gadgets, the lack of control about their getting into the enterprise’s network and accessing information stands a growing challenge for Information Technology management and for the entire organization. By using a qualitative approach (content analysis) to examine cases of success in the acceptance of consumerization, this work aims to identify some motivation factors based in real experiences. Based on these factors, an organizational motivation profile classification emerges. Finally, a diagram based on Information System success is proposed intending to call for further research concerning consumerization

    O cultivo do abacaxi para o Amazonas.

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    Informacoes sobre a situacao do cultivo do abacaxi no Amazonas, os aspectos agroclimaticos e variedades, mudas, plantio, pragas e doencas, colheita e rendimento, coeficientes tecnicos para a implantacao e manutencao de 1ha, e o cultivo em sistemas agroflorestais.bitstream/CPAA-2009-09/2740/1/Circ_Tec_7.pd

    Traceability for Model Driven, Software Product Line Engineering

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    Traceability is an important challenge for software organizations. This is true for traditional software development and even more so in new approaches that introduce more variety of artefacts such as Model Driven development or Software Product Lines. In this paper we look at some aspect of the interaction of Traceability, Model Driven development and Software Product Line

    Efeito de inseticidas reguladores de crescimento sobre ovos, lagartas e adultos de Grapholita molesta (BUSCK) (LEP.: Tortricidae).

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    O trabalho teve como objetivo avaliar o efeito de inseticidas reguladores de crescimento de insetos (RCI) sobre ovos, lagartas e adultos de G. molesta, em laboratório. Os inseticidas avaliados foram lufenurom e novalurom (4,0g de i.a. 100L-1) metoxifenozida e tebufenozida (9,6g de i.a. 100L-1) e uma testemunha (água destilada). Em aplicação antes da oviposição, somente o metoxifenozida causou mortalidade significativa de ovos (26,3%), quando comparado à testemunha. A aplicação dos inseticidas sobre ovos com diferentes idades (24; 48 e 72 horas) apresentou variações na mortalidade da espécie em função do inseticida e tempo de desenvolvimento embrionário. Somente metoxifenozida e novalurom reduziram a viabilidade de lagartas que eclodiram dos ovos tratados, com um máximo de 35,9 e 39,5% de viabilidade larval quando aplicados em ovos de 48-72 horas, respectivamente. O tratamento dos frutos de maçã com inseticidas causou mortalidade significativa das lagartas, contudo não foram observadas diferenças entre os inseticidas, tanto para lagartas pequenas (eficiência média de 47,2%), quanto para lagartas de 3º-4º instar (média de 45,3%). Lufenurom reduziu sua eficácia com o aumento do tamanho da lagarta. A ingestão de lufenurom, metoxifenozida, novalurom, tebufenozida por adultos de G. molesta reduziu a fecundidade e a fertilidade, porém a longevidade dos adultos somente foi afetada negativamente pela ingestão de metoxifenozida e tebufenozida

    Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River.

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    Macrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. However, there is little information about the natural diet and feeding habits of this species. The aim of this study was the identification of the diet items of M. carcinus based on the analysis of the stomach contents. Specimens were collected in the Amazon River estuary between January 2009 and January 2010. The stomach analysis was carried out by using the frequency of occurrence (FO), methods of points (MP) and feeding index (FI). It was observed that prawns fed on detritus, animals and plant fragments as the most important food items. Sediment accounted for the main stomach content, accounting for 43.2% by the MP, 44.9% by FI and 100% by the FO. Sexual differences in feeding preferences were not found in this study, and seasonal differences in the frequency of items ingested by M. carcinus were not observed. The results indicated that M. carcinus can be considered omnivorous species, but with an important carnivorous component, similar to that found in other Macrobrachium species

    Brachyuran crustaceans from the bycatch of prawn fisheries at the mouth of the Amazon river.

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    The present paper is a pioneering study on the Brachyura bycatch associated with the artisan prawn fisheries at the mouth of the Amazon River. The study was conducted at four collection sites distributed along the mouth of the Amazon River between the months of January/2009 and January/2010. The animals were caught using handcrafted traps called ?matapi?, which are used by prawn fisherman in the region. Twenty matapis were used at each collection site. A total of 145 specimens were captured and six species were identified, all belonging to the Trichodactylidae family - Sylviocarcinus maldonadoensis, S. pictus, S. devillei, Valdivia serrata, Dilocarcinus septemdentatus and D. pagei. The most representative species, S. maldonadoensis, S. pictus and S. devillei were classified as regular. Regarding the composition of the capture, there were three specimens of D. pagei , only one male specimen of D. septemdentatus, forty-eight specimens of S. maldonadoensis, sixty-eight specimens of S. pictus, twenty-two specimens of S. devillei and three specimens of V. serrata. In all months, the brachyuran fauna showed a considerably lower biomass when compared to the prawns, representing only 5% of the catch, in a ratio of 1:0.06. For most species, the number of males was always higher than the number of females in almost all collection months

    Manejo fitotécnico na cultura da mandioca (Manihot esculenta Crantz) em Amargosa, Bahia. 1. adubação mineral e orgânica.

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    A cultura da mandioca extrai elevadas quantidades de nutrientes, com destaque para potássio e nitrogênio (HOWELER, 1981), que, pelo fato de todo material colhido (raiz e parte aérea) ser retirado do campo, pode ser considerada como cultura esgotante do solo. Para exploração sustentável da mandioca, é necessário repor os nutrientes extraídos do solo, por meio de adubos minerais e orgânicos, a fim de manter sua produção por períodos prolongados. Estercos bovinos e resíduos da agroindústria representam as fontes orgânicas de uso mais facilitado para a agricultura, tais como a manipueira, que é o resíduo líquido obtido da prensagem da massa de raízes de mandioca por ocasião do fabrico de farinha (NOGUEIRA et al., 1992; DINIZ et al., 2009). O objetivo do trabalho foi avaliar a resposta da mandioca a diferentes fontes e combinações de adubos minerais e orgânicos em região de cultivo de mandioca no município de Amargosa, Bahia
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