862 research outputs found

    Seleção assistida por marcadores de linha mantenedora dentro de uma população de cebola tropical

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    The traditional onion (Allium cepa) hybrid production requires the development of maintainer and male sterile lines and also a pollinator line with good specific combination ability. We report the identification of maintainer and male-sterile onion lines within the Brazilian 'Baia Periforme' derived population, 'Alfa São Francisco', associating random field pairing of male-fertile plants with selected male-sterile plants and PCR-based marker system monitoring S, T and N-cytoplasms. Male-sterile plants produced flowers with light green anthers which were easily detected in the field. A frequency of 2.0% of male-sterile plants was estimated in the 'Alfa São Francisco' sampled population. Male-sterile plants produced the 5'cob-marker 180-bp and the orfA501-marker 473-bp fragments, suggesting the T-cytoplasm type, while the maintainer line produced only the 5'cob-marker 180-bp. These identified lines will be important to develop tropical onion hybrids well-adapted to Brazilian low latitudes and to future comparative studies with other onion cytoplasmic genic male sterility systems.A produção tradicional de híbrido de cebola (Allium cepa) requer o desenvolvimento de linhas mantenedoras e linhas macho estéreis, bem como uma linha polinizadora de boa capacidade específica de combinação. Reporta-se a identificação de linhas de cebola mantenedora e macho-estéreis numa população 'Alfa São Francisco' derivada da brasileira 'Baia Periforme', associando pareamento ao acaso no campo de plantas férteis com plantas macho-estéreis e sistema de PCR para monitoramento dos citoplasmas S, T e N. Plantas macho-estéreis produziram flores com anteras verde-claras, que foram facilmente identificadas no campo. A freqüência de 2,0% de plantas macho-estéreis foi estimada dentro de uma amostra da população 'Alfa São Francisco'. Plantas macho-estéreis produziram o marcador 5´cob de 180-pb e o marcador orfA501 de 473-pb, sugerindo que o citoplasma é do tipo T, enquanto a linha mantenedora da macho-esterilidade produziu apenas o marcador 5'cob de 180-pb. Essas linhas identificadas serão importantes para o desenvolvimento de híbridos de cebola tropical, bem adaptados às áreas de baixa latitude do Brasil e para estudos comparativos no futuro com outros sistemas da macho-esterilidade citoplasmática gênica de cebola

    Managing it as a business: the Lutchen's gap in the 100 top organizations based in Brazil

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    A common problem in IT management involves the lack of business vision on the part of IT executives who align IT to the strategic assumptions of the company, but forget the tactical functions of the former, managed as a business. This is known as the Lutchen's gap. Because of its importance in the context of IT management, this paper is a complementary approach to the preceding one from Rodrigues et al. (2009) and aims at identifying the Lutchen´s gap presence in the management of IT among the 100 top companies located in Brazil. To do this, we proceeded to a description of the profile of IT management in these companies, controlled by the executive board. We used a questionnaire filled out by IT executives, containing 77 questions covering the four functions of IT in a company. The main results indicate that: (a) In the IT's Alignment function, the design of IT reveals dichotomies between business and IT objectives (b) In the IT's Management function, the IT's budget is oriented toward ensuring "delivering" abilities to IT services and differing in the methods of cost control, ranging from apportion by volume, overheads and by ABC cost, (c) in the IT's Deliver function, evidence suggests that IT is managed as a business enabler; and (d) in the IT's Quality and Safety Assurance, IT executives monitor quality and safety events, but are limited to IT's basic operations. In conclusion, in the companies surveyed, IT is seen much more as an" on-demand solution provider", rather than as an instrument of innovation and competitiveness enabler for organizations.Um problema comum em gestão de TI, apontados pelos especialistas, envolve a falta de visão de negócio dos executivos de TI ao alinharem seus departamentos com as premissas estratégicas da empresa e esquecerem-se das funções táticas da TI, onde esta poderia ser gerida como um negócio. Esse é conhecido como o gap de Lutchen e por sua importância no contexto da gestão da TI, este artigo é complementar ao artigo de Rodrigues et al. (2009) e visa identificar a presença do gap de Lutchen, na gestão da TI entre as 100 maiores empresas sediadas no Brasil. Para tanto, procedeu-se a um levantamento do perfil da gestão de TI nessas empresas, na visão de seus executivos. Utilizou-se um questionário, respondido pelos executivos de TI, contendo 77 perguntas que varrem os quatro fundamentos da função da TI na empresa. Os principais resultados indicam que: (a) na função Alinhar, o desenho da TI apresenta dicotomias entre os objetivos dos negócios e os da TI; (b) na função Gerir, observa-se que os orçamentos de TI orientam-se para garantir a capacidade de entregae dos serviços de TI e diferem nos métodos de controle de custo, variando entre rateios por volume, overhead e custo ABC; (c) na função Entregar, as evidências indicam que a TI é gerida como uma capacitadora de negócios; e (d) na função Garantir a Qualidade e Segurança, muitos executivos de TI monitoram eventos de qualidade e segurança, mas limitam-se às operações básicas da TI. Em conclusão, o que se observa nas empresas pesquisadas é que a TI é vista como um sistema fornecedor de soluções,f sob demanda, dos negócios, mais do que como um instrumento capaz de garantir inovação e capacidade competitiva para as organizações

    Three-dimensional ultrasonography in the evaluation of the fetal cerebellum

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    For the last years three-dimensional ultrasonography has become an imaging diagnosis method of great importance in obstetrics. One of its advantages would be the higher sensitivity compared with two-dimensional ultrasound in the diagnosis of some fetal malformations. The potential applications of this new method would be an improved accuracy in the measurement of fetal organs, the possibility of reviewing volumes in the absence of the patient, and using different planes to assess specific anatomical structures, as well as the capacity to transfer data files to remote reference centers. Ultrasonographic evaluation of fetal cerebellum is particularly important, since developmental alterations are correlated with the fetal growth alterations and congenital anomalies. The objective of this updating is to demonstrate the VOCAL and 3D XI methods in the evaluation of the fetal cerebellum, their potential benefits, and the latest information in the literature about this subject.Nos últimos anos a ultra-sonografia tridimensional tem-se tornado um método de imagem de grande importância no diagnóstico em obstetrícia. Um de seus benefícios seria a maior sensibilidade, em relação ao ultra-som bidimensional, no diagnóstico de algumas malformações fetais. As potenciais aplicações desse novo método seriam uma maior acurácia na medida do volume de órgãos fetais, a possibilidade de rever volumes na ausência da paciente, a possibilidade de utilizar diferentes planos para avaliar determinada estrutura anatômica e a capacidade de transmissão de volumes para centros de referência. A avaliação ultra-sonográfica do cerebelo fetal é de extrema importância, pois, comprovadamente, alterações no seu desenvolvimento estão correlacionadas com alterações do crescimento fetal e anomalias congênitas. O objetivo desta atualização é demonstrar os métodos VOCAL e 3D XI na avaliação do cerebelo fetal, seus potenciais benefícios e o que há de mais atual na literatura a respeito deste assunto.Universidade Federal de São Paulo (UNIFESP) EPM Departamento de ObstetríciaUNIFESP, EPM, Depto. de ObstetríciaSciEL

    Interest rate risk measurement in Brazilian sovereign markets

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    Os mercados emergentes de renda fixa são alternativas interessantes para investimentos. Devido ao elevado nível de incerteza existente em tais mercados, a mensuração dos riscos de mercado de uma carteira de investimentos é fundamental para que se evite um nível elevado de perdas. Uma das medidas de risco de mercado mais utilizadas é o Value at Risk, baseado na distribuição de probabilidades de perdas-ganhos da carteira sob análise. A estimação desta distribuição requer, no entanto, a estimação prévia da distribuição de pro-babilidades das variações da estrutura a termo da taxa de juros. Uma possibilidade interessante para a estimação de tal distribuição é efetuar uma decomposição da função de spread da estrutura a termo em uma combinação linear de Polinômios de Legendre. Exemplos numéricos do mercado internacional de títulos soberanos brasileiros são apresentados para ilustrar o uso prático desta nova metodologia.Fixed income emerging markets are an interesting investment alternative. Measuring market risks is mandatory in order to avoid unexpected huge losses. The most used market risk measure is the Value at Risk, based on the profit-loss probability distribution of the portfolio under consideration. Estimating this probability distribution requires the prior estimation of the probability distribution of term structures of interest rates. An interesting possibility is to estimate term structures using a decomposition of the spread function into a linear combination of Legendre polynomials. Numerical examples from the Brazilian sovereign fixed income international market illustrate the practical use of the methodology

    Yield of Syn-1 synthetic varieties of tropical onion resulting from openpollinated Brazilian populations

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    Due to technological limitations for the development of onion hybrids, first-cycle synthetic varieties (Syn1-SV) could be an alternative to partially explore heterotic vigor. The growing areas of onion hybrids in Brazilare mainly defined by bulb yield and uniformity. From this perspective, the present study aimed to developtropical onion Syn1-SV and estimate mid-parent heterosis (Hm), heterobeltiosis (Hp), and standard heterosis(Hs) as an alternative to hybrid development. Six Syn1-SVs, eight open-pollinated (OP) populations, and onecommercial hybrid were evaluated in a randomized block design with three replications, in two semesters, forthe commercial bulb yield (CBY) and days to bulb harvest (DBH). Significant differences were observed fortreatments (T), semesters (S) and the T*S interaction for both variables (p-value<0.05). The OPs ‘Alfa SF RT’ inthe first semester and ‘IPA11’ in the second semester were the most precocious treatments. The highest CBYwas estimated in the commercial hybrid (105.8 t ha-1) and in ‘Alfa SF RT’ (45.5 t ha-1) in the first and secondsemesters, respectively. Three Syn1-SVs showed positive Hm values, ranging from 2.0% to 6.3% for CBY. ThreeSyn1-SV showed positive Hp values in the first semester, ranging from 3.0% to 5.2%, for CBY. Only the Syn1-SV ‘AlfaSF RT’ × ‘BRS Alfa São Francisco’ (48.9 t ha-1) showed positive Hs values, surpassing by a small value the controlOP population ‘IPA11’ (48.0 t ha-1), indicating the potential of Syn1-SV as an option for onion hybrids.Due to technological limitations for the development of onion hybrids, first-cycle synthetic varieties (Syn1-SV) could be an alternative to partially explore heterotic vigor. The growing areas of onion hybrids in Brazilare mainly defined by bulb yield and uniformity. From this perspective, the present study aimed to developtropical onion Syn1-SV and estimate mid-parent heterosis (Hm), heterobeltiosis (Hp), and standard heterosis(Hs) as an alternative to hybrid development. Six Syn1-SVs, eight open-pollinated (OP) populations, and onecommercial hybrid were evaluated in a randomized block design with three replications, in two semesters, forthe commercial bulb yield (CBY) and days to bulb harvest (DBH). Significant differences were observed fortreatments (T), semesters (S) and the T*S interaction for both variables (p-value<0.05). The OPs ‘Alfa SF RT’ inthe first semester and ‘IPA11’ in the second semester were the most precocious treatments. The highest CBYwas estimated in the commercial hybrid (105.8 t ha-1) and in ‘Alfa SF RT’ (45.5 t ha-1) in the first and secondsemesters, respectively. Three Syn1-SVs showed positive Hm values, ranging from 2.0% to 6.3% for CBY. ThreeSyn1-SV showed positive Hp values in the first semester, ranging from 3.0% to 5.2%, for CBY. Only the Syn1-SV ‘AlfaSF RT’ × ‘BRS Alfa São Francisco’ (48.9 t ha-1) showed positive Hs values, surpassing by a small value the controlOP population ‘IPA11’ (48.0 t ha-1), indicating the potential of Syn1-SV as an option for onion hybrids

    The Future Looks Good: Examining the Associations Between Coping, Psychological Distress, and Optimism

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    The recent pandemic and consequent lockdown had a substantial impact on mental health and optimism regarding the future. Previous research showed that levels of depression, anxiety, and stress had increased throughout the pandemic. Nonetheless, how individuals cope when faced with adversity may be associated with positive expectations regarding the future. A sample of 274 Portuguese workers (female = 54) with a mean age of 40.86 (SD = 0.70) and work experience of 19.68 years (SD = 12.07) met inclusion criteria and agreed to participate in the proposed study. They represented a variety of working classes (i.e., arts, engineering, marketers, transportation and logistic, clerks, personal trainers, managers, lawyers, accountants, directors, journalism, health care). We investigated the associations between depression, stress, anxiety, adaptive and maladaptive coping, and optimism while controlling for working experience, gender, and work type. We found that depression was related to lower levels of optimism. However, for participants scoring high on adaptive coping and anxiety, higher scores of optimism were reported. Gender, work type, and experience did not significantly influence the results. These results provide evidence through which positive mental health can be promoted after the pandemic.info:eu-repo/semantics/publishedVersio

    IMAGENS FOTOGRÁFICAS NAS REDES SOCIAIS: ENTRE FLUXOS, ESGOTAMENTOS E CRIAÇÃO.

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    As redes sociais digitais nos tomam de assalto com uma avalanche constante de imagens e palavras, num processo que pode ser descrito, num sentido deleuziano, como um esgotamento das potências da imagem, estancando a criação de novos possíveis. Ao retomar a função do conceito de punctum para Roland Barthes na relação com imagens digitais que circulam no ciberespaço, este ensaio teórico se propõe e explorar a potência do invisível, do “espaço-entre” não afirmativo na experiência do dia a dia nas redes sociais como qualidades educativas contemporâneas

    Study of level of disclosure of the impairment by Brazilian banks : an application of content analysis based on notes

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    A crescente necessidade de reconhecer, evidenciar e evidenciar as imparidades dos ativos faz com que diversos setores econômicos, inclusive o financeiro, se deparem com constantes conflitos para realizar tais processos. Nesse sentido, o objetivo deste estudo é analisar empiricamente o processo de evidenciação das informações sobre impairment na estrutura das Notas Explicativas dos doze maiores bancos no Brasil. Para tal, analisou-se o conteúdo das fontes externas nas Notas Explicativas de cada banco, com base em classificações previamente estabelecidas na metodologia. Para direcionar a análise, foram apresentadas três tabelas que serviram de base para apresentar os resultados que evidenciam o Impairment Test. Os resultados evidenciaram semelhança entre os doze bancos no que concerne à insuficiência de informação para aplicação do teste de imparidade. Há indícios de que existem ativos (financeiro e não financeiro) avaliados por valor superior ao valor de recuperação financeira, com exceção de um que declara contemplar o procedimento na avaliação dos seus ativos. Cabe salientar que os bancos brasileiros estão em processo de adoção das normas relacionadas à recuperação de ativos e ainda aguardam pronunciamentos mais detalhados do Banco Central do Brasil (BCB) para a devida utilização do critério. Não obstante, constatou-se o esforço de alguns bancos para evidenciar o impairment em suas notas explicativas. ________________________________________________________________________________ ABSTRACTThe growing need to recognize, highlight and explore the impairments of assets means that various economic sectors, including financial, encounter constant conflict to carry out such processes. Accordingly, the objective of this study is to empirically examine the process of disclosure of information about impairment in the structure of the Notes of the twelve largest banks in Brazil. To this end, it analyzed the content of external sources in the Notes of each bank, based on classifications previously established in the methodology. To guide the analysis, three tables were made which served as the basis for presenting the results show that the impairment test. The results showed similarity between the twelve banks in relation to the lack of information for applying the test for impairment. There is evidence that there are assets (financial and non financial) assessed the value exceeds the value of financial recovery, except for one that says the procedure include the evaluation of their assets. It is noted that Brazilian banks are in the process of adoption of standards related to the recovery of assets and still awaiting more detailed statements of the Central Bank of Brazil (BCB) for the proper use of discretion. However, it was the efforts of some banks to demonstrate the impairment in their notes

    Development of dried probiotic apple cubes incorporated with Lactobacillus casei NRRL B-442

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    [EN] This work presents the development of a probiotic dried apple snack consisting of dried apple cubes impregnated with Lactobacillus casei NRRL B-442. Apple cubes were impregnated with probiotic microorganisms and dried under different temperatures (10-60 degrees C), with or without application of ultrasound. The viability of Lactobacillus casei in the dried apple snack was evaluated studying the effects of drying conditions and ultrasound application (as a drying enhancing technology). A mathematical model was developed to predict the drying kinetics and the inactivation of Lactobacillus casei. Drying and microorganism inactivation rates increased with increasing process temperature and with ultrasound application. The concentration of probiotics in the apple snacks was similar to the concentration of microorganisms in commercial probiotic dairy products when the apples were dried at 60 degrees C or when ultrasound-assisted air-drying was applied, thus proving that the production of dried probiotic apple snacks is possible and technically viable.The authors acknowledge the financial support of Generalitat Valenciana (PROMETEOII/2014/005) from Spain, and the financial support and the award of a scholarship of CNPq from Brazil.Rodrigues, S.; Silva, LCA.; Mulet Pons, A.; Carcel Carrión, JA.; Fernandes, FA. (2018). Development of dried probiotic apple cubes incorporated with Lactobacillus casei NRRL B-442. Journal of Functional Foods. 41:48-54. https://doi.org/10.1016/j.jff.2017.12.042S48544

    Evolução da produção de carne suína no Brasil: uma análise estrutural-diferencial

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    The objective of this paper is to analyze the production shares of the main Brazilian states (Minas Gerais, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul, Mato Grosso do Sul, Mato Grosso and Goiás) in the national production of inspected and total pork meat in the period from 2000 to 2006. The analysis considered the evolution of the production in terms of the regional effects, and indicators of the technical evolution of the production. The theoretical model used is the induced innovation model, based on agricultural modernization theory. The analysis method was the shift-share model. The results showed that the pork Brazilian production presented important transformations. Although the total production of pork meat has presented significant growth, the inspected production showed superior dynamism. The production is moving to regions closed to raw material supplying areas. The result is a production modernization dynamics in the areas of agricultural border, trend that had already been verified in the bovine livestock.Local factor, Technological factor, Shift-Share model, Pork meat, Livestock Production/Industries,
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