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Identify plants used for insect stings in selfcare practices in the situation of suffering by people living in a rural location of Santa Maria municipality, Southern Brazil. Made available in DSpace on 2021-08-09T19:00:25Z (GMT). No. of bitstreams: 1 Artigo-Natural-resources-for-therapeutic-use-evidence-from-Brazil.pdf: 2324666 bytes, checksum: 5898bd08df0a5e672fcf496dac17e1cb (MD5) Previous issue date: 2021

International audience; Purpose: In 2016, the Herault tumor registry collected 1961cancers in urology (21.4 % from all Herault cancers this year). RHESOU was created to complete RTH' data with specific parameters in onco-urology. The aim of this study is to describe RHESOU and to give some examples with our first results.Material and methods: In November 2018, RHESOU (Registry HErault Specialised in Onco-Urology) was founded with the same registry recommendations. It collects specific oncologic parameters and also complete RTH's data. For each urological cancer, a specific survey with different choices was performed to collect a maximum of data which could be present in patients' file. These surveys were used for urological cancers cases that live in Herault in 2017.Results: In 2017, we collected 970 prostate cancers, 581 bladder cancers, 212 kidney cancers, 51 upper excretory tract cancers, 28 testicle cancers and 9 penil cancers. Our urological data collection gives many possibilities to create many requests for detailed analysis in urological cancers. In this article, we reported data from kidney, bladder and prostate cancers.Conclusions: RHESOU is a new tool opened to the different urologic corporations (urologists, pathologists, oncologists, radiotherapists, radiologists) that permits an overview in urological cancers in Herault. Finally, one important aim is that this tool will be adapted when new treatments or new important parameters appear in the years ahead.Level of evidence: 3.

Este documento é baseado na revisão de práticas participativas para a zona costeira e marinha brasileira. Desde a Constituição Nacional de 1988, instrumentos e políticas públicas foram desenvolvidos para fomentar a participação social na gestão costeira e marinha. Novos atores, iniciativas, práticas e redes de colaboração abriram caminhos para o engajamento social. Os processos participativos das últimas décadas evidenciam conquistas e desafios. No entanto, à medida que o novo milênio avança, uma frágil infraestrutura institucional ameaça a participação na gestão, em particular o envolvimento de atores com menos recursos e poder que, em última instância, arcam com os custos de uma gestão costeira impositiva (top-down). Aqui, nós apresentamos os principais resultados de uma colaboração entre pesquisadores brasileiros e alemães que revisou e analisou práticas participativas de gestão e seus desdobramentos. Como a gestão costeira e marinha no Brasil evoluiu com relação à inclusão das populações mais vulneráveis, em especial dos usuários diretos dos recursos naturais? Com base na análise de um conjunto de informações de diferentes projetos e reunindo a experiência dos autores, nós oferecemos recomendações a tomadores de decisão brasileiros, do nível local ao nível nacional, e a outros atores nacionais e institucionais (como Agências da ONU, doadores, movimentos sociais). Com base na experiência brasileira, nossas recomendações também são relevantes para outros contextos de descentralização da gestão costeira e marinha.

Noise appears in the brain due to various sources, such as ionic channel fluctuations and synaptic events. They affect the activities of the brain and influence neuron action potentials. Stochastic differential equations have been used to model firing patterns of neurons subject to noise. In this work, we consider perturbing noise in the adaptive exponential integrate-and-fire (AEIF) neuron. The AEIF is a two-dimensional model that describes different neuronal firing patterns by varying its parameters. Noise is added in the equation related to the membrane potential. We show that a noise current can induce continuous and noncontinuous transitions in neuronal interspike intervals. Moreover, we show that the noncontinuous transition occurs mainly for parameters close to the border between tonic spiking and burst activities of the neuron without noise.

This police brief reviews participatory practices and their outcomes in the Brazilian coastal zone. Since the 1988 Brazilian National Constitution came into force, a number of instruments and policies were developed to foster social participation in coastal management. New actors, initiatives, practices and networks have opened up alternative pathways for social engagement. From the many examples of participatory processes in the last decades, we can learn about achievements and challenges. As the new millennium advances, a fragile institutional infrastructure hampers established participatory processes, and in particular the involvement of the poorest stakeholders, who ultimately bear the costs of most top-down coastal management decisions. Here, we present the main findings of a collaborative study of Brazilian and German partners that reviews and analyses participatory practices and their outcomes in the Brazilian coastal zone. How has Brazilian coastal and management evolved in terms of including vulnerable populations, in particular direct ecosystem users? Based on the analysis of large sets of data raised in several projects and bringing together the extensive experience of our co-authors, we offer recommendations for decision-makers from local to national level in Brazil and for other national and international actors (UN Agencies, donors, social-environmental movements). Based on the Brazilian experience, our recommendations are also of relevance in other contexts of decentralising coastal and coastal management.

From 1900–2000, the global human population grew by more than 400%, from 1.5 to 6.1 billion (Roser, 2015). The demands that the current population places upon global food supplies presents what may be one of the greatest challenges of the modern age. To support such a large population in a reliable, sustainable manner, productivity of agricultural crops will have to be improved significantly, most likely through multiple means (development of new, higher-yield crops; more efficient water use; improved cropping systems). One active area of research is the development of more effective methods of agricultural pest management.

The antioxidant activity of molecules constitutes an important factor for the regulation of redox homeostasis and reduction of oxidative stress. Cells affected by oxidative stress can undergo genetic alteration, causing structural changes and promoting the onset of chronic diseases, such as cancer. The in silico study performed here was developed to evaluate the antioxidant potential of two molecules, ZINC08706191 (Z91) and ZINC08992920 (Z20), with recognized epithelial anticancer potential. Molecular docking, chemical-quantum calculations and Pearson's correlation were performed. The Z91 and Z20 molecules showed lower binding free energy (ΔG) values for the receptor-ligand interaction than the reference molecules (caffeine – CAF and ascorbic acid – AA), and better results for values of molecular descriptors correlated with ΔG, resulting in a decrease of ΔG. Strong correlations were observed between ΔG values for the five receptors evaluated and ΔG values of the potential epithelial anticancer activity available in literature. These results attest to the significant antioxidant potential of the Z91 and Z20 molecules and their strong relation with the potential epithelial anticancer activity and may be indicated for further analysis in relation to the control of oxidative stress and epithelial anticancer activity.

Submitted by Cláudia de Fátima Moura (claudiaf@ucb.br) on 2019-10-02T18:14:22Z No. of bitstreams: 1 ArturPeixotodosSantosTCCGraduacao2018.pdf: 849273 bytes, checksum: c4dca312b188d0d712a41a93618bc083 (MD5) Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2019-10-24T18:52:07Z (GMT) No. of bitstreams: 1 ArturPeixotodosSantosTCCGraduacao2018.pdf: 849273 bytes, checksum: c4dca312b188d0d712a41a93618bc083 (MD5) Made available in DSpace on 2019-10-24T18:52:07Z (GMT). No. of bitstreams: 1 ArturPeixotodosSantosTCCGraduacao2018.pdf: 849273 bytes, checksum: c4dca312b188d0d712a41a93618bc083 (MD5) Previous issue date: 2018 Foi realizada uma revisão bibliográfica em forma de retrospectiva, referenciando artigos do ano 2008 até 2018, em que foram encontrados estudos relacionados ao exercício isométrico agudo e crônico pesquisados nas bases eletrônicas: Scielo, Lilacs, PubMed. Foram selecionados apenas os artigos que utilizaram idosos com hipertensão arterial. Foram utilizados artigos em língua inglesa e portuguesa. As seguintes palavras-chave em língua portuguesa e inglesa respectivamente, foram utilizadas como meio de busca para nossa pesquisa.

Larval development and allometric growth patterns of the black-faced blenny Tripterygion delaisi are described from a larval series (body length, L-B = 3.30-12.10 mm) caught by light traps at the Arrabida Marine Park, Portugal. Larvae of T. delaisi possess distinctive morphometric and meristic characteristics which can be used to identify this species from related taxa. Pigmentation is sparse but characteristic, consisting of pigmented eyes, gas bladder pigmentation in the dorsal region, anal pigmentation and a row of regularly spaced postanal ventral melanophores. This pattern is present from as early as the yolk-sac stage and persists throughout all stages with just the addition of head and caudal pigmentation during the flexion and postflexion stages, respectively. The majority of fin development (with the exception of the caudal fin), occurs in the later stages of development. Myomere counts range between 37 and 45 for all stages. Growth is allometric during larval development. When inflexion points of growth were detected, growth was found to be biphasic with the inflexion points occurring within a very narrow range of L-B (8.70-8.90 mm) close to the mean +/- S.D. (9.44 +/- 1.48 mm LB) of postflexion larvae. Considering allometric growth patterns and ontogenetic descriptions together, the first developmental phase includes the preflexion and flexion stage larvae, while the second phase characterises the postflexion larvae prior to the transition from larvae to juvenile. (C) 2017 The Fisheries Society of the British Isles MARES; Erasmus Mundus [FPA 2011-0016]; Fundacao para a Ciencia e Tecnologia (FCT) [POCTI/MAR/57934/2004, PTDC/MAR/115226/2009, PTDC/MAR-EST/4356/2012, 331/94, PEST-OE/MAR/UI0331/2011, UID/MAR/04292/2013, Multi/04326/2013] info:eu-repo/semantics/publishedVersion

Since the introduction of minimal invasive surgery in the 90s, many international urologic centres have developed retroperitoneoscopy as access way for treatment of multiple urologic pathologies. The aim of this work is to analyze our initial experience in retroperitoneoscopy. Materials and methods: Retrospective analysis of the first 100 cases of retroperitoneoscopy by counsulting the clinical records. These operations were classified according to their technical difficulty and operative risk. Operative complications were stratified into five grades using the modified Clavien classification system (CCS). The first 100 retroperitoneoscopic procedures of our hospital were performed from January 2008 to July 2013 in 51 men and 49 women with a mean age of 52 years old (18‐84 years old). They were comprised of 22 renal cyst marsupialization, 36 Simple Nephrectomies, 4 Radical Nephrectomies, 2 Nephroureterectomies, 14 dismembered pyeloplasties, 1 lumbar ureterolithotomy and 21 Parcial Nephrectomies. Using the classification of surgical complexity European Scoring System for Laparoscopic Operations in Urology modified by Rassweiler in 2006, we classified 22 procedures as simple, 57 procedures as difficult and 21 procedures as very difficult. The mean operation time was 158 minutes (range: 67‐280 minutes). The mean operation time was 96, 157, and 220 minutes in simple, difficult and very difficult procedures, repectively. The open conversion rate was 3%. A total of 12 patients had postoperative complications: CCS Grade I in 4, CCS Grade II in 6 and CCS Grade IIIb in 2 patients. Discussion/Conclusions: The retroperitoneoscopy has proven to be a safe and a versatile access for a minimally invasive treatment of many urologic pathologies.

Made available in DSpace on 2017-12-20T23:22:11Z (GMT). No. of bitstreams: 1 241601248632PB.pdf: 539416 bytes, checksum: d7ed3c0ad491c1b03ea8ad3d2540ccea (MD5) Previous issue date: 2017-12-20

Made available in DSpace on 2018-08-01T23:45:54Z (GMT). No. of bitstreams: 1 tese_9909_GEOETNOGRAFIAS DO AGIR URBANO - DESLOCAMENTOS E FLUXOS DE EXPERIÊNCIA NA CIDADE CONTEMPORÂNEA.pdf: 11634033 bytes, checksum: c7fc62be41bf0d572d004417fa9a06c1 (MD5) Previous issue date: 2016-04-19 O cotidiano nas grandes cidades contemporâneas tem sido pautado pelos fluxos de velocidade, impessoalidade e insegurança, porém autores como Hesse (1977), Oliveira Jr. (2010) e Marandola Jr. (2011) nos apontam para movimentos que criam fissuras nessa dinâmica, de modo que insistem em existir (ASPIS, 2010) em meio a essa cidade funcionalista, sendo pautados pelos fluxos de sociabilidade, lentidão e segurança. Dessa forma, investigar como todos esses fluxos influenciam e se manifestam na experiência citadina em duas localidades de Vitória-ES, a avenida Jerônimo Monteiro e a Orla de Camburi, foi o objetivo deste trabalho. Essas duas áreas foram escolhidas porque apresentam apropriações diferentes, a primeira mais voltada para o comércio e a segunda para o lazer. Dessa forma, analisamos se essa diferença interfere nas ocorrências dos fluxos investigados. Autores como Virilio (2014), Bauman (1999; 2009), Caiafa (2003) e Jacobs (2011) nos foram basilares para a discussão de como o cotidiano passou a ser pautado por esses fluxos, que Queiroz Filho denomina de grandes marcas do viver citadino contemporâneo (QUEIROZ FILHO et al., 2013). As investigações foram realizadas através de experiências em campo, de modo que elas foram distribuídas ao longo de quatro semanas. Os conhecimentos e dados coletados com as experiências e as observações na Jerônimo Monteiro e na Orla de Camburi foram base para a elaboração dos relatos de campo e da criação de tabelas, gráficos, mapas e do Guia Afetivo dos Lugares. Estes produtos tiveram o intuito de apresentar a variedade de dados coletados e de experiências vivenciadas ao longo das quatro semanas. Para a criação desses materiais, cada fluxo foi associado a uma cor, levando em consideração suas características e a Teoria das Cores de Goethe (1993). Concluímos fazendo uma discussão e análise sobre a influência dos fluxos nas áreas de estudo e também um paralelo entre elas, de modo a identificarmos semelhanças e alteridades.

Mit Hilfe unterschiedlicher Hefeextraktkonzentrationen im Sporulationsmedium wurden in Bacillus stearothermophilus-Sporen unterschiedliche Dipicolinsauregehalte synthetisiert. Nach Bestimmung des Calcium/Dipicolinsaure-Molverhaltnisses wurden die Hitzeresistenzdaten bei 121°C fur endotroph beeinfluste Sporen ermittelt. Mit Erhohung des Dipicolinsauregehaltes und Herabsetzung des Calcium/Dipicolinsaure-Molverhaltnisses in den Sporen erhohte sich die Hitzeresistenz.

In this paper, we study the effects of spike timing-dependent plasticity on synchronisation in a network of Hodgkin-Huxley neurons. Neuron plasticity is a flexible property of a neuron and its network to change temporarily or permanently their biochemical, physiological, and morphological characteristics, in order to adapt to the environment. Regarding the plasticity, we consider Hebbian rules, specifically for spike timing-dependent plasticity (STDP), and with regard to network, we consider that the connections are randomly distributed. We analyse the synchronisation and desynchronisation according to an input level and probability of connections. Moreover, we verify that the transition for synchronisation depends on the neuronal network architecture, and the external perturbation level.

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Anurans are predators of a great diversity of invertebrates, but studies on agroecosystems are very scarce. Herein we described the diet composition of seven species of terrestrial anurans captured in three different agroecosystems (corn, soybean and rubber tree) and in forest remnants of the Northwestern region of São Paulo state, Brazil. Ten prey categories were identified in the stomachs of 80 specimens belonging to the families Bufonidae, Leptodactylidae and Microhylidae. Hymenoptera (Formicidae) was consumed by all species. Coleoptera was the most frequent item, consumed by six of the even species followed by Araneae and Isoptera. Isoptera was the most abundant item followed by Formicidae, Coleoptera and Araneae. Adults and juveniles of Physalaemus nattereri, the most abundant species in our study, consumed Formicidae and Isoptera more than other food items and there is not a significant difference in the abundance of consumed prey items between the age categories. In summary, the majority of the studied species can be considered generalists predators and, probably, consumed the prey items available in the environment. The most abundant species found in our study can be considered here as having a specialized diet, by consuming social insects in great frequency. Published online on 12 August 2015.

Nowadays, the vitamin A deficiency (VAD) is still a public health concern, being one of the most important components of the high rate of morbidity and mortality among children in developing countries. There is a high prevalence of night blindness caused by deficiency of vitamin A. Children and pregnant women are particularly affected. Many pumpkins (C. moschata) genotypes present a great variability of carotenoid content mainly the beta-carotene. The objective of this work is to evaluate the variability of beta-carotene among pumpkins genotypes. Twenty biofortified pumpkins cultivated at Embrapa Table Coast land and Semiarid were evaluated regarding beta-carotene contents. The analyses were carried out by High rformance Liquid Chromatography. The pumkinks showed a large variability in the contents of total carotenoids varying, in fresh pumpkins from 699.06 (genotype 25) to 124.60 μg/g (genotype 26), from 106.96 (genotype 26) to 655.54 μg/g (genotype 25) in samples cooked in boiling water and 117.55 (genotype 19) and 650.54 μg/g (genotype 25) in steamed cooked, respectively. Made available in DSpace on 2018-04-19T00:57:52Z (GMT). No. of bitstreams: 1 Rita2015.pdf: 631343 bytes, checksum: 928a7622622dcc8e9d1340a1fb11b1f7 (MD5) Previous issue date: 2018-04-18

o plantio de minitomates tanto no primeiro quanto no segundo semestre do ano é outra potencialidade da agricultura irrigada do Vale do Submédio São Francisco. Pesquisas recentes para avaliação de desempenho agronômico de cultivares, avaliação de qualidade dos frutos e a viabilidade econômica revelam que o plantio dessa hortaliça é mais uma opção de renda para os agricultores e o incremento da economia regional. Os minitomates são produtos diferenciados, normalmente separados em dois tipos: "cereja" e "grape".

A abóbora é amplamente cultivada e consumida no Brasil, em especial na Região Nordeste. Além do valor econômico e alimentar para a agricultura familiar e comercial, têm grande importância social na geração de empregos diretos e indiretos, pois demanda grande quantidade de mão-de-obra, do cultivo à comercialização.

Este trabalho teve como objetivo ajustar e selecionar modelos matemáticos para a estimativa do volume comercial com casca para espécies comerciais de uma Floresta Ombrófila Densa de Terra Firme localizada no sul de Roraima. Foram abatidas e cubadas pelo método de Smalian 122 árvores de 18 espécies com diâmetro à altura do peito maior do que 50 cm. Foram testados nove modelos, ajustados pelos métodos dos mínimos quadrados, e selecionados em função do coeficiente de determinação ajustado, do erro padrão de estimativa em porcentagem, do valor de F calculado e da análise gráfica da distribuição dos resíduos. Recomendou-se o modelo de Schumacher-Hall. O modelo de Kopezki-Gherardt pode ser empregado, quando não se utilizar dados de altura comercial.

Birds are the most species-rich class of tetrapod vertebrates and have wide relevance across many research fields. We explored bird macroevolution using full genomes from 48 avian species representing all major extant clades. The avian genome is principally characterized by its constrained size, which predominantly arose because of lineage-specific erosion of repetitive elements, large segmental deletions, and gene loss. Avian genomes furthermore show a remarkably high degree of evolutionary stasis at the levels of nucleotide sequence, gene synteny, and chromosomal structure. Despite this pattern of conservation, we detected many non-neutral evolutionary changes in protein-coding genes and noncoding regions. These analyses reveal that pan-avian genomic diversity covaries with adaptations to different lifestyles and convergent evolution of traits.

O objetivo do estudo foi avaliar acessos de abóbora Maranhão selecionados para maior teor de carotenoides e a cultivar Jacarezinhos em diferentes em diferentes espaçamentos entre plantas, para maior produtividade, sustentabilidade da produção e competitividade da cultura em áreas irrigadas, nas condições do Semiárido do Vale do São Francisco. Made available in DSpace on 2014-04-24T22:39:44Z (GMT). No. of bitstreams: 1 Geraldo2014.pdf: 1543552 bytes, checksum: d06e9f537f340970f95311510407a24c (MD5) Previous issue date: 2014-04-23

A abóbora é amplamente cultivada e consumida no Brasil, em especial na região Nordeste. O espaçamento entre e dentro da linha são cruciais para o desenvolvimento e produção da cultura. Com o objetivo de avaliar diferentes espaçamentos de plantio na produtividade de acessos e cultivar de abóbora, instalou-se um experimento no período de maio a setembro de 2010, no campo experimental da Embrapa Semiárido em Petrolina-PE. O delineamento experimental utilizado foi de blocos ao acaso, em esquema fatorial 5x3, compreendendo quatro acessos selecionados do Banco Ativo de Germoplasma de Abóbora (Acessos: A422, A612, A620 e A627) e a cultivar Jacarezinho como testemunha, e três espaçamentos entre plantas (4x1; 4x2 e 4x3 m), com quatro repetições. Maior produtividade foi obtida pelo acesso A612 (17,3 t ha-1), seguido pelo acesso A422 (15,2 t ha-1) e, o pior desempenho foi obtido pela cultivar Jacarezinho (12,2 t ha-1), sem diferenciar dos demais acessos. Para espaçamento entre plantas observou-se que as maiores produtividades foram verificadas no menor espaçamento (4x1 m) com 18,2 t ha-1, e menores produtividades no espaçamento de 4x3 m (11,9 t ha-1). O acesso A612 sobressaiu-se com maior massa fresca (3,5 kg fruto-1), não se diferenciando estatisticamente do acesso A422, que alcançou 3,2 kg fruto-1. A cultivar Jacarezinho e o acesso A620, com respectivos 1,9 e 2,0 kg fruto-1 obtiveram os menores valores para massa fresca do fruto, assim como maior número de frutos por planta com 4,7 e 4,6 frutos plantas-1, respectivamente

Cette recherche explore le thème de l'urbanisation contemporaine, notamment l'articulation des politiques relatives à la planification et la gestion urbaine avec celles traitant du logement des populations défavorisées. Il s’agit d’une étude et d’une réflexion sur l'influence de l'évolution des savoirs, des discours et modes de gestion sur les politiques urbaines appliquées aux processus de développement et pour répondre aux besoins en habitat et équipements des populations urbaines peu solvables. Le logement est le principal composant de la matière urbaine, et c’est dans les politiques de l’habitat et les formes de celui-ci que les inégalités urbaines s’avèrent être les plus accentuées au Sud comme au Nord, à Brasilia comme à Paris. Le traitement de l’habitat et de l’intégration urbaine des moins solvables reste ainsi le grand écueil apparent et médiatisé de toutes les politiques urbaines. La thèse trace une rétrospective des politiques de logement et de gestion urbaine des 50 dernières années à Brasilia et à Paris relatives à l’habitat précaire. La création de politiques et programmes de logement de masse a ainsi contribué à la construction des « périphéries » de ces deux agglomérations. Néanmoins ces espaces périphériques sont aujourd’hui considérés comme des quartiers défavorisés par rapport au centre-ville. A travers l’analyse d’un demi siècle de politiques de logement et de gestion urbaine comment les deux villes peuvent envisager une autre forme de politique du logement et de la ville avec une autregénération d’instruments urbanistiques, plus productive d’égalité et plus intégrative ?

Se realizó un estudio de corte transversal en 145 docentes de la Facultad de Ciencias de la Salud de una universidad pública venezolana. El propósito de este estudio fue determinar la frecuencia del Síndrome de Burnout, (BO) así como la identificación de los riesgos laborales y su asociación con las diferentes áreas del BO. Para ello, se utilizó el instrumento MBI, de Maslach modificado por Roman (2003), y la prueba de los tres deseos. La recolección de los datos tuvo una duración de 4 meses. Se midió el nivel de Burnout en sus distintas áreas de afectación; los resultados de las variables se sometieron a análisis estadístico uni y bivariado. Como principal resultado se encontró el agotamiento emocional (AE) como el área de mayor afectación en 69% de los docentes. Asimismo se encontró que el hecho de trabajar en otro sitio diferente al recinto universitario (trabajo clínico público y privado), se comportó como un factor protector para el AE en los docentes: [OR = 0,46 (IC 95% = 0,21-1,02; p < 0.05)], pese a que la asociación no alcanzó significancia estadística. La prevalencia del BO fue de 21%; mala infraestructura y condiciones de trabajo; bajos salarios y burocracia administrativa, fueron identificados como principales problemas que afectan la labor docente. We performed a field study and cross-section of 145 teachers from the Faculty of Health Sciences from a public Venezuelan university. The purpose of this study was to determine the prevalence of burnout syndrome (BO), as well as the identification of occupational risk factors and their possible association with the different areas of the BO. For this research is used the instrument MBI of Maslach modified by Roman, (2003), and testing of three wishes. The data collection lasted four months. We measured the level of Burnout in different areas of affectation; the results of the different variables were subjected to statistical analysis univariate and bivariate. The main results observed emotional exhaustion (AE) as the main area of affectation of the BO in 69% of teachers. Also we found that the fact of working in another place different from the campus (Public and Privates Clinic Work) is a protective factor for the AE in the teachers: OR = 0.46 [(95% CI = 0.21 to 1.02, p

Suplemento. Edição dos Anais do 52 Congresso Brasileiro de Olericultura, Salvador, jul. 2012.

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A família Cucurbitaceae é uma das mais importantes famílias de plantas utilizadas e comercializadas no mundo. Além do uso alimentar, as espécies da família apresentam inúmeros outros usos como, medicinal, ornamental e forrageiro. Este trabalho teve como objetivos diagnosticar a ocorrência, utilização e riscos de erosão genética de espécies de Cucurbitáceas subutilizadas e analisar os avanços na conservação de germoplasma. Com informações coletadas em propriedades agrícolas, no comércio, em herbários e bancos de germoplasma e através da aplicação de questionários foi possível realizar um diagnóstico sobre as espécies estudadas. Os dados coletados mostram que a ocorrência das espécies subutilizadas e o nível de conhecimento são amplos (sobretudo Cucumis anguria, Luffa cylindrica and Lagenaria siceraria) sendo, entretanto, necessária a realização de incentivos aos agricultores. São necessários também esforços para diagnósticos mais detalhados sobre riscos de erosão e para resgate de germoplasma subutilizado. Os dados apresentados neste trabalho podem ser úteis na definição de ações de conservação e uso dos recursos genéticos da família das cucurbitáceas, em especial das espécies subutilizadas, principal foco deste trabalho, evitando, desta forma, a perda de alguns genótipos

16 p., In this paper, we present the results of an evaluation of several chemicalproducts used as acaricides: alpha-cypermethrin Amitraz, Cypermethrin, andEthion over the control of Rhipicephalus (Boophilus) microplus that affects thedouble purpose bovines. Tics (Rhipicephalusmicroplus) were collected in twoproduction units in each County of the Municipality of Colón, in the Zulia Statein Venezuela. After a selection of comparable insects, they were immersed inconcentrations obtained from the recommended dose and concentration of theacaricides of each active principle. Then, the experiment was followed until thelarvaes hatching and the number of death and alive ones larva was counted ineach case. The data was analyzed using techniques related to Generalized LinearModels, considering first, binary models of dose-response based on the binomialdistribution to model the proportion of death larva for each concentration, usingmodels for each acaricide and, the “best” model was selected using the deviancesand information criteria, considering the Akaike criteria (AIC) the Pearson χ2,the deviance and a adaptation of the R2 for binomial model. After determining thebest performance concentration of each acaricide, it was performed an analysis ofcontingency tables using a Poisson distribution to compare the effect of theacaricides, using in this case the recommended dose for each product., En el presente trabajo se presentan los resultados de la evaluación in vitrode cuatro tipos de acaricidas químicos utilizados en el control de garrapatas:Alfacipermetrina, Amitraz, Cipermetrina y Ethion, en garrapatas Rhipicephalus(Boophilus) microplus que afectan a bovinos de doble propósito. Las garrapatasadultas ingurgitadas fueron colectadas en dos unidades de producción por cadaparroquia del municipio Colón, estado Zulia, Venezuela. Luego de una selecciónde ejemplares comparables de acuerdo a su tamaño y peso se sometieron a inmer-sión en distintas concentraciones de soluciones de acaricidas; a partir de lasconcentraciones terapéuticas se calculan las concentraciones (0,25X, 0,50X, 1X,2X y 4X) de las soluciones del acaricida de cada principio activo. Posteriormentese espera al momento de la eclosión de los huevos y se determina el número delarvas vivas y muertas. Los datos fueron analizados mediante técnicas de Mode-los Lineales Generalizados, considerando primero modelos binarios de concentra-ción-respuesta basados en la distribución binomial para modelar la proporción delarvas muertas para cada concentración, planteándose un modelo para cada acaricida. En esta fase se consideraron las tres funciones de enlace utilizadas: lalogit, la probit y la log-log complementaria y se determina el mejor modelo encada caso y se seleccionó el mejor modelo basado en los desvíos (deviances) y encriterios de información, usándose el criterio de Akaike (AIC), el χ2 de Pearson, ladevianza (deviance) y una adaptación del R2 para el modelo binomial. Posterior-mente, y luego de determinar la concentración óptima para cada garrapaticida seplantea un modelo basado en tablas de contingencia para la concentración reco-mendada por el fabricante para cada producto, utilizando modelos basados en ladistribución de Poisson para comparar los distintos acaricidas.Palabras clave: Modelos lineales generalizados, modelos de respuesta binaria,modelos para tablas de contingencia, evaluación de acaricidas, Rhipicephalus(Boophilus) microplus.

In this work we study the behavior of the optical phonon modes in bilayer graphene devices by applying top gate voltage, using Raman scattering. We observe the splitting of the Raman G band as we tune the Fermi level of the sample, which is explained in terms of mixing of the Raman (Eg) and infrared (Eu) phonon modes, due to different doping in the two layers. We theoretically analyze our data in terms of the bilayer graphene phonon self-energy which includes non-homogeneous charge carrier doping between the graphene layers. We show that the comparison between the experiment and theoretical model not only gives information about the total charge concentration in the bilayer graphene device, but also allows to separately quantify the amount of unintentional charge coming from the top and the bottom of the system, and therefore to characterize the interaction of bilayer graphene with its surrounding environment.

Made available in DSpace on 2011-04-09T21:05:18Z (GMT). No. of bitstreams: 1 RitaMercia2010.pdf: 774096 bytes, checksum: 601f6c617d90dac0baaa4b4e97f4c9ba (MD5) Previous issue date: 2010-12-16

Made available in DSpace on 2014-10-28T07:25:16Z (GMT). No. of bitstreams: 1 Magna43145.pdf: 509340 bytes, checksum: e4d4e866684f8c3afbe98cd1e7d83bb3 (MD5) Previous issue date: 2010-06-10 Suplement 1. Edição dos Abstracts do 8th International Symposium on Grapevine Physiology and Biotechnology, Adelaide, Australia, nov. 2008.

This was considered as a new wine making region and one of the most important in tropical zones. Where there is not enough information about phenological and thermal demand of wine grapes cultivars. The climate is unique and classified as semi-árid, where the mean total annual precipitation is 540mm, the corresponding mean pan evaporation is 2700mm and the mean annual air temperature is 26.5°C. . Suplement 1. Edição dos Abstracts do 8th International Symposium on Grapevine Physiology and Biotechnology, Adelaide, Australia, nov. 2008.

O objetivo deste trabalho foi avaliar a divergência fenotípica em uvas da Coleção da Embrapa Semi-Árido, com base em oito variáveis morfoagronômicas avaliadas nos anos 2005 e 2006. Nas uvas com sementes, a análise por componentes principais identificou oito grupos contrastantes. As variáveis mais relevantes, quanto à divergência genética, foram peso e comprimento de bagas. Em uvas sem sementes, formou-se apenas um grupo, e as variáveis mais relevantes foram peso de bagas e produção. A distância euclidiana média padronizada no grupo com sementes mostrou que 41% dos acessos apresentaram estimativas acima da média geral. No grupo sem sementes, o percentual foi de 47%. Foi observada concordância de resultados com os componentes principais. Pelo UPGMA, formaram-se três grandes grupos das uvas com sementes: o primeiro, com 14 acessos; o segundo, com seis acessos e similaridade de 56%; e o terceiro, com 19 acessos e similaridade de 73%. Das uvas sem sementes, formaram-se três grupos: um, com 11 acessos e similaridade de 59%; outro, com sete acessos e similaridade de 58%; e o terceiro com apenas um acesso. Sugere-se que os acessos com maior divergência quanto aos caracteres estudados sejam utilizados para a obtenção de híbridos de videira.

O objetivo deste trabalho foi caracterizar 119 acessos de goiabeira e 40 acessos de araçazeiro identificados em 35 ecorregiões brasileiras, de acordo com descritores da International Union for the Protection of New Varieties of Plants (UPOV). A maioria dos acessos de araçazeiro apresentou grandes espaços entre as nervuras da folha, enquanto os de goiabeira apresentaram espaços pequenos. Os frutos de araçazeiro foram classificados como pequenos, enquanto os de goiabeira apresentaram tamanho de médio a grande. A maioria dos acessos de araçazeiro (91%) apresentou cor branca para a polpa do fruto, enquanto 58% dos de goiabeira apresentaram cor de rosa-claro a rosa-escuro. As diferenças nos frutos entre Psidium selvagens e domesticados indicam que os frutos foram os mais alterados pela seleção artificial. Made available in DSpace on 2011-04-09T18:03:08Z (GMT). No. of bitstreams: 1 OPB1770.pdf: 60161 bytes, checksum: e389704b33d1f7839782ef7ef7fc9e47 (MD5) Previous issue date: 2008-05-27

L'ingeniosité dans le dévéloppement de l’art de parler chez les Grecs peut être appreciée dès le début de leur littérature. Néanmoins, ce n’est qu’au Ve siècle av. J.-C. qu'apparaît une théorie de cet art, en Sicile, rattachée alors à la Grèce comercialement et politiquement. Au IVe siècle av. J.-C., à Athènes, Aristote, dans sa Rhétorique, définit clairement les normes de la critique des discours. Il faut donc se fonder sur Aristote pour étudier ce modèle du genre délibératif qu’est la Troisième Philippique de Démosthène, où ressort l’habilité de l’orateur dans la combinaison des types de pésteis.

En el presente trabajo se realizó el aislamiento y caracterización estructural de asfaltenos y otros surfactantes naturales del crudo extrapesado venezolano Carabobo, antes llamado Cerro Negro, utilizando un método de extracción Soxhlet modificado. Los resultados sugieren que en la fracción ácida aislada están presentes por lo menos dos tipos de compuestos uno con características ácidas y de bajo peso molecular y otro de mayor peso molecular muy semejante a los asfaltenos. In this paper it was made the isolation and structural characterization of asphaltenes and other natural surfactants extracted from Carabobo extra-heavy Venezuelan crude oil using modified Soxhlet extraction method. The results suggest in the isolated acid fraction the presence of almost two types of compounds, where one of them is a compound with acid characteristics and low molecular weight, while the other show high molecular weight and characteristic very similar to asphaltenes.

alpha(1H) T-type channels recruited by beta(1)-adrenergic stimulation in rat chromaffin cells (RCCs) are coupled to fast exocytosis with the same Ca(2+) dependence of high-threshold Ca(2+) channels. Here we show that RCCs exposed to chronic hypoxia (CH) for 12-18 h in 3% O(2) express comparable densities of functional T-type channels that depolarize the resting cells and contribute to low-voltage exocytosis. Following chronic hypoxia, most RCCs exhibited T-type Ca(2+) channels already available at -50 mV with the same gating, pharmacological and molecular features as the alpha(1H) isoform. Chronic hypoxia had no effects on cell size and high-threshold Ca(2+) current density and was mimicked by overnight incubation with the iron-chelating agent desferrioxamine (DFX), suggesting the involvement of hypoxia-inducible factors (HIFs). T-type channel recruitment occurred independently of PKA activation and the presence of extracellular Ca(2+). Hypoxia-recruited T-type channels were partially open at rest (T-type 'window-current') and contributed to raising the resting potential to more positive values. Their block by 50 microm Ni(2+) caused a 5-8 mV hyperpolarization. The secretory response associated with T-type channels could be detected following mild cell depolarizations, either by capacitance increases induced by step depolarizations or by amperometric current spikes induced by increased [KCl]. In the latter case, exocytotic bursts could be evoked even with 2-4 mm KCl and spike frequency was drastically reduced by 50 microm Ni(2+). Chronic hypoxia did not alter the shape of spikes, suggesting that hypoxia-recruited T-type channels increase the number of secreted vesicles at low voltages, without altering the mechanism of catecholamine release and the quantal content of released molecules.

El schwanoma o neurilemoma es un tumor con origen en las células de Schwann de la vaina de los nervios periféricos. En la literatura están descritos veintisiete casos de schwanomas del pene. Presentamos un caso de schwanoma múltiple del pene, haciendo una breve revisión de la literatura sobre este raro tumor con respecto a su etiopatogenia, diagnóstico, tratamiento y orientación. Schwannoma or neurilemmoma designate a tumour that originates in the Schwann cells of peripheral nerves, therefore occurring anywhere in the body. They are very rare in the penis. In the literature are reported twenty seven cases of penile schwannoma. We report a case of multiple schwannoma of the penis and make a brief literature revision about this rare pathology.

O presente trabalho objetivou avaliar preliminarmente o potencial produtivo de 12 acessos referida cultura mantidos no Banco Ativo de Germoplasma da Embrapa Semi-Árido. Made available in DSpace on 2015-09-26T07:43:58Z (GMT). No. of bitstreams: 1 34634.pdf: 592424 bytes, checksum: 1de7240d8e0981cc5b4529ab3c7cdd9a (MD5) Previous issue date: 2007-01-11 Número especial. Edição de Resumos do 2º Workshop de Recursos Genéticos Vegetais no Estado da Bahia, Ilheus, out. 2006.

O trabalho tem como objetivo o estabelecimento de uma coleção representativa do gênero Psidium, incluindo espécies dos "araçás". Made available in DSpace on 2015-09-26T07:44:07Z (GMT). No. of bitstreams: 1 34635.pdf: 779115 bytes, checksum: e03c45461aa02f804bbca110447de6e6 (MD5) Previous issue date: 2007-01-11 Número especial. Edição de Resumos do 2º Workshop de Recursos Genéticos Vegetais no Estado da Bahia, Ilheus, out. 2006.

Questions: Do protective plant-ants perturb the pollination process and the reproduction of their host-plant? If they do, have partner selective mechanisms evolved against such conflicts? Organisms: The semi-myrmecophyte Humboldtia brunonis and its ant associates. Field site: Makut Reserve Forest, Western Ghats. South India. Methods: We tracked insect and extrafloral nectar activity on inflorescences of several trees over a 24 h cycle. We repeatedly measured the extrafloral nectar produced by bracts of flowers throughout their phenology from the bud stage until and beyond flower opening. We studied the behaviour of ants towards the reproductive apparatus of the flowers and conducted ant exclusion experiments to test for my negative effect on herbivores of fruit production. Conclusions: Pollinators did not visit inflorescences that had more than four ants on them. Ants. solely by their presence on bud bracts and bracteoles. intimidate other insects, both pollinators and herbivores. Some spatial and temporal mechanisms partially prevent negative ant-pollinator interactions. First. extrafloral nectar production on the bracts of flower buds, which attracts ants to inflorescences. was highest at night, attracting the largest numbers of ants at that time, whereas the major pollinators were active during the day. Second, this extrafloral nectar production declines after the first flower of each inflorescence opens. Third, the anthers and stigma are placed at the apex of a thin elongate axis, which offers a precarious foothold to ants. One ant species, Crematogaster dohrni, succeeds despite these difficulties by acting just before the flower-opens, and damaging the flower when the style and stamens are still folded. This is the fourth case of castration behaviour of a plant-ant directed against its host-plant. Despite its anti-herbivore protection of flower buds. this plant-ant has a negative impact on fruit production in H. brunonis.