Recria em rebanhos leiteiros.

bitstream/item/65267/1/CT-84-Recria-em-reb-leit.pd

Critical phenomena of thick branes in warped spacetimes

We have investigated the effects of a generic bulk first-order phase transition on thick Minkowski branes in warped geometries. As occurs in Euclidean space, when the system is brought near the phase transition an interface separating two ordered phases splits into two interfaces with a disordered phase in between. A remarkable and distinctive feature is that the critical temperature of the phase transition is lowered due to pure geometrical effects. We have studied a variety of critical exponents and the evolution of the transverse-traceless sector of the metric fluctuations.Comment: revtex4, 4 pages, 4 figures, some comments added, typos corrected, published in PR

Armazenamento de posturas de Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) destinadas a criacao de Telenomus remus Nixon (Hymenoptera: scelionidae).

IX SINCOBIOL

Pollen and seed dispersal of Brazil nut trees in the southwestern Brazilian Amazon.

Pollen and seed dispersal patterns greatly influence the spatial distribution of plant genetic diversity. Microsatellite-based parentage analysis provides accurate estimates of contemporary gene dispersal. Although most tropical trees have been shown to exhibit widespread pollen dispersal, few studies have estimated contemporary gene dispersal after seedling establishment. Bertholletia excelsa (Lecythidaceae) is pollinated by large-bodied bees, while previous seed-tracking experiments suggest their seeds are mainly dispersed across very short distances by scatter-hoarding rodents, who primarily act as seed predators. Here we used parentage analysis to provide contemporary estimates of pollen and seed dispersal in B. excelsa recruits. We examined six 25-ha plots located in two natural stands in the Acre River valley, in the southwestern Brazilian Amazon. We used 11 microsatellite markers to estimate genetic diversity and fixation index parameters in adults, seedlings and saplings. Genetic diversity was moderate and did not differ across size classes or sampling locations. We assigned pollen and seed parents for <20% of the recruits, indicating that most events of realized gene flow occurred beyond our 25-ha plots. Only 10 parentage assignments were confirmed with 80% confidence. Pollen distance ranged from 33 to 372 m and seed dispersal from 58 to 655 m. Actual seed-dispersal distances were far greater than the estimates obtained in previous seed-tracking experiments. Thus, studies encompassing larger sampling areas are necessary to determine a more representative spatial scale of B. excelsa?s pollen and seed dispersal capacity in natural stands. Os padrões de dispersão de pólen e sementes influenciam a distribuição espacial da diversidade genética. Muitas espécies arbóreas tropicais apresentam ampla dispersão de pólen, mas poucos estudos avaliaram fluxo gênico a partir de plântulas. Bertholletia excelsa (Lecythidaceae) é polinizada por abelhas e as sementes são dispersas por roedores do tipo scatter-hoarders (que estocam recursos em diferentes pontos de sua área de vida), que atuam primariamente como predadores de sementes. Experimentos de remoção de sementes tem mostrado que a dispersão de sementes por esses roedores é espacialmente limitada. Nosso objetivo foi obter estimativas de dispersão de pólen e sementes em B. excelsa a partir da análise de parentesco de regenerantes. Nós estudamos seis parcelas de 25 ha, em duas áreas de floresta nativa no vale do Rio Acre, no sudoeste da Amazônia brasileira. Parâmetros de diversidade genética e índice de fixação foram estimados em adultos, varetas e plântulas com 11 marcadores microssatélites. A diversidade genética foi moderada e não diferiu entre classes de tamanho ou entre localidades. A paternidade foi determinada em menos de 20% dos regenerantes, indicando que a maioria dos eventos de fluxo gênico ocorreu em distâncias maiores que as encontradas nas parcelas de 25 ha. As distâncias de pólen variaram de 33 a 372 m e as de dispersão de sementes variaram de 58 a 655 m. As distâncias de dispersão obtidas neste estudo excedem em muito as estimativas obtidas em experimentos de remoção de sementes. Estudos envolvendo áreas maiores são necessários para que possamos aprofundar nosso conhecimento sobre capacidade de dispersão de pólen e sementes em populações naturais de B. excelsa

The consolidation and effectiveness of matrix support in mental health in Brazil - bottlenecks and challenges

Passados dez anos da implementação do apoio matricial nas redes de saúde por meio dos Núcleos de Apoio à Saúde da Família, ainda sente-se a falta de dados consistentes quanto à consolidação e efetividade desse arranjo. Nesse sentido, este estudo teve como objetivo revisar a bibliografia nacional dos últimos dez anos a fim de identificar os impasses e desafios vivenciados no apoio matricial em saúde mental na Atenção Primária, classificando-os a partir de uma reconstrução teórico-conceitual e fazendo uma articulação destes com os desafios pontuados em congêneres internacionais do apoio matricial. Entre os principais pontos levantados pelo estudo, destacou-se a necessidade de delineamentos claros para prática de matriciamento; investimento maciço em formação e capacitação dos profissionais; e criação de espaços institucionalizados com encontros sistemáticos dos profissionais para discussão dos casos e avaliação conjunta do andamento das atividades23COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESsem informaçãoTen years on from the introduction of matrix support in health networks through the creation of Family Health Support Centers, there is still a lack of consistent data to measure the success of consolidation and effectiveness of this arrangement. With this in mind, we conducted a literature review of national articles produced over the last ten years to identify the bottlenecks and challenges faced by matrix support in mental health in Primary Care. The problems were classified using a theoretical and conceptual reconstruction and drawing on similar experiences with matrix support in other countries. The following key points emerged from the review: the need to provide clear guidelines for matrix support; the need for major investment in training and capacity building; and the need to create institutionalized spaces to foster systematic communication between professionals to discuss cases and promote joint evaluation of the progress of activitie

Penetrating Bladder Trauma: A High Risk Factor for Associated Rectal Injury

Demographics and mechanisms were analyzed in prospectively maintained level one trauma center database 1990–2012. Among 2,693 trauma laparotomies, 113 (4.1%) presented bladder lesions; 51.3% with penetrating injuries (n=58); 41.3% (n=24) with rectal injuries, males corresponding to 95.8%, mean age 29.8 years; 79.1% with gunshot wounds and 20.9% with impalement; 91.6% arriving the emergence room awake (Glasgow 14-15), hemodynamically stable (average systolic blood pressure 119.5 mmHg); 95.8% with macroscopic hematuria; and 100% with penetrating stigmata. Physical exam was not sensitive for rectal injuries, showing only 25% positivity in patients. While 60% of intraperitoneal bladder injuries were surgically repaired, extraperitoneal ones were mainly repaired using Foley catheter alone (87.6%). Rectal injuries, intraperitoneal in 66.6% of the cases and AAST-OIS grade II in 45.8%, were treated with primary suture plus protective colostomy; 8.3% were sigmoid injuries, and 70.8% of all injuries had a minimum stool spillage. Mean injury severity score was 19; mean length of stay 10 days; 20% of complications with no death. Concomitant rectal injuries were not a determinant prognosis factor. Penetrating bladder injuries are highly associated with rectal injuries (41.3%). Heme-negative rectal examination should not preclude proctoscopy and eventually rectal surgical exploration (only 25% sensitivity)