Erosion losses from runoff: interaction of soil cover and erosion control practice

O escoamento da água oriunda das terras agricultadas é o principal fator poluente dos mananciais hídricos nas áreas rurais. Devido a esse fato, faz-se necessário o desenvolvimento e a aplicação de tecnologias que venham a reduzir descargas de resíduos indesejáveis. Nesse sentido, conduziu-se um experimento na área experimental do Departamento de Engenharia Rural - ESALQ/USP, Piracicaba - SP, com o objetivo de avaliar o efeito de diferentes condições de solo, (feijão, gramínea e solo nu) e diferentes práticas de controle de erosão (sulco de infiltração, terraço de infiltração e sem práticas de controle de erosão), buscando-se estimar o escoamento superficial. O delineamento estatístico adotado foi o em blocos aleatorizados, em esquema fatorial 3x3, perfazendo 9 tratamentos com 3 repetições. O período de coleta de dados pluviométricos foi de 06 de dezembro de 2007 a 11 de abril de 2008; para isto, utilizou-se de um pluviômetro, com 21,1 cm de diâmetro, instalado na área experimental. Observando-se as perdas de água, em relação às estruturas, tem-se em ordem decrescente de eficiência: Terraço, Sulco e Rampa; e com relação às coberturas, tem-se em ordem decrescente de eficiência: Feijão, Capim e Solo Nu

Immunological profiles of patients from endemic areas infected with Schistosoma mansoni

Crude extracts of eggs (SEA) adult worms (SWAP) or cercariae (Cerc) have been used to stimulate Peripheral Blood Mononuclear cells (PBMC) and have provided rather distinct profiles of responses in different types of patients. In genenral it is clear that patients with early infections respond strongly to SEA while response to SWAP are developed more slowly. As infection progresses into the more chronic phases, a general pattern is seen whic leads to lower anti-SEA proliferative responses in the face of higher responses to SWAP and variable anti-cerc responsiveness. Cured not re-exposed patients express very high levels of anti-SEA proliferation. It has recently been seen that those individuals who live in endemic areas and have continued water contact, but are reapeatedly stool-negative (who are presumed to have self-cured or be putatively resistant; endemic normals) are strongly responsive to antigenic extracts, particularly to SEA. Furthermore, our results show that endemic normal individuals have significantly higher IFN gamma production upon PBMC stimulation with schistosome antigens than infected individuals. With the emergence of more studies it is becoming apparent that both the intensity and the prevalence of a given area may influence or shape the general responsiveness of the population under study

Echocardiographic predictors of early in-hospital heart failure during first ST-elevation acute myocardial infarction: does myocardial performance index and left atrial volume improve diagnosis over conventional parameters of left ventricular function?

<p>Abstract</p> <p>Background</p> <p>Left ventricular ejection fraction (LVEF) has been considered a major determinant of early outcome in acute myocardial infarction (AMI). Myocardial performance index (MPI) has been associated to early evolution in AMI in a heterogeneous population, including non ST-elevation or previous AMI. Left atrial volume has been related with late evolution after AMI. We evaluated the independent role of clinical and echocardiographic variables including LVEF, MPI and left atrial volume in predicting early in-hospital congestive heart failure (CHF) specifically in patients with a first isolated ST-elevation AMI.</p> <p>Methods</p> <p>Echocardiography was performed within 30 hours of chest pain in 95 patients with a first ST-elevation AMI followed during the first week of hospitalization. Several clinical and echocardiographic variables were analyzed. CHF was defined as Killip class ≥ II. Multivariate regression analysis was used to select independent predictor of in-hospital CHF.</p> <p>Results</p> <p>Early in-hospital CHF occurred in 29 (31%) of patients. LVEF ≤ 0.45 was the single independent and highly significant predictor of early CHF among other clinical and echocardiographic variables (odds ratio 17.0; [95% CI 4.1 - 70.8]; p < 0.0001). MPI alone could not predict CHF in first ST-elevation AMI patients. Left atrial volume was not associated with early CHF in such patients.</p> <p>Conclusion</p> <p>For patients with first, isolated ST-elevation AMI, LVEF assessed by echocardiography still constitutes a strong and accurate independent predictor of early in-hospital CHF, superior to isolated MPI and left atrial volume in this particular subset of patients.</p

Highlights from the Pierre Auger Observatory

The Pierre Auger Observatory is the world's largest cosmic ray observatory. Our current exposure reaches nearly 40,000 km$^2$ str and provides us with an unprecedented quality data set. The performance and stability of the detectors and their enhancements are described. Data analyses have led to a number of major breakthroughs. Among these we discuss the energy spectrum and the searches for large-scale anisotropies. We present analyses of our X$_{max}$ data and show how it can be interpreted in terms of mass composition. We also describe some new analyses that extract mass sensitive parameters from the 100% duty cycle SD data. A coherent interpretation of all these recent results opens new directions. The consequences regarding the cosmic ray composition and the properties of UHECR sources are briefly discussed.Comment: 9 pages, 12 figures, talk given at the 33rd International Cosmic Ray Conference, Rio de Janeiro 201

Atuação da comissão de farmácia e terapêutica em um hospital de ensino

The hospital activities are characterized by a highly dynamism as a result of new health technologies such as medicines. A hospital due its characteristics of teaching, research and high complexity care, has the highest concentration of different types of health technologies. The Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto – USP (HCFMRP-USP) is a hospital, with proven quality, inserted in the SUS as a tertiary/quaternary referral and has the Pharmaceutical Services Division (DAF) for development of actions of health care. To aid resource management, selection and standardizationof drugs, DAF adopted the strategy of Pharmacy and Therapeutics Committee (CFT). The CFT is a collegial, consultative and deliberative body, established by the World Health Organization as a strategy tool to monitor and promote the quality in the use of medicine, but studies of CFTs are incipient in Brazil. Thus, this study aims to present the CFT of HCFMRP–USP. Objectives: To introduce the composition, responsibilities and working methods of CFT, as well as a critical analysis of its current operation. Methods: A descriptive study aimed to describe the current functioning of the CFT of HCFMRP-USP was performed. Ordinances, internal regulations were surveyed and a bibliographic review of the CFT was performed. To the critical analysis of the current operating, was selected by the committee from the standard one that would fit classification as belonging to “A” and “V” items after the crossing of the curves ABC and VEN, whose selected item was the medicine Sevoflurane. Results: The CFT was established in 2010 to replace the defunct standardization committee. Since then, the CFT examined 134 requests and 41 of these were standardized. The Sevoflurane drug was incorporated into the HCFMRP-USP in 2010 and, starting that year, there was a gradual increase in the consumption of the same. However, after analyzing the requirements of the drug in 2012, it was observed that the dispensation of Sevoflurane does not follow the specifications of the patient profile as established in the protocol established at the time of standardization. Conclusions: We concluded that the implementation of CFT was a strategy that provided a rational standardization. However, it is observed that there is no control of dispensing and use of the product according to the protocol established at the time of standardization. We emphasize that control the use of Sevoflurane is not responsibility of the CFT and this assignment should be delegated to the responsible technical area.As atividades hospitalares caracterizam-se por um acentuado dinamismo em consequência do surgimento de novas tecnologias em saúde, tais como medicamentos. Uma unidade hospitalar, devido suas características de ensino, pesquisa e atendimentos de alta complexidade, possui maior concentração de diferentes tipos de tecnologias em saúde. O Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto –USP (HCFMRP-USP) é uma instituição hospitalar, de qualidade comprovada, inserido no SUS como referência terciária/quaternária e que conta com a Divisão de Assistência Farmacêutica (DAF) para desenvolvimento das ações de atenção a saúde. A DAF para auxílio da gestão de recursos, seleção e padronização de medicamentos adotou como estratégia a Comissão de Farmácia e Terapêutica (CFT). A CFT é uma instância colegiada, de caráter consultivo e deliberativo, estabelecida pela Organização Mundial de Saúde como ferramenta de estratégia para monitorar e promover a qualidade no uso do medicamento, porém estudos que sobre a atuação das CFTs no Brasil são incipientes. Desta forma, este estudo pretende apresentar a CFT do HCFMRP-USP. Objetivos: apresentar a composição, atribuições e metodologia de trabalho da CFT, bem como desenvolver uma análise crítica de seu atual funcionamento. Metodologia: Foi realizado estudo descritivo e exploratório com o objetivo de descrever o atual funcionamento da CFT do HCFMRP-USP. Foram buscadas portarias, regulamentações internas e foi realizada revisão bibliográfica sobre a CFT. Para Análise crítica do atual funcionamento, foi selecionado dentre os itens padronizados pela comissão aquele que se enquadrasse como pertencente a classificação A e V, após o cruzamento das curvas ABC e VEN, cujo item selecionado foi o medicamento Sevoflurano. Resultados: A CFT foi instituída no ano de 2010 em substituição a extinta comissão de padronização. Desde então, a CFT analisou 134 solicitações e destas 41 foram padronizadas. O medicamento sevoflurano foi incorporado no HCFMRP-USP em 2010 e, a partir deste ano, observa-se um aumento gradativo do consumo do mesmo. Entretanto, após análise das prescrições do referido medicamento no ano de 2012, foi observado que a dispensação do sevoflurano não segue as especificações do perfil de pacientes conforme estabelecido no protocolo instituído no momento da padronização. Conclusões: Portanto, concluímos que a implantação da CFT foi uma estratégia que proporcionou a padronização racional. Entretanto, observa-se que não há controle da dispensação e utilização do medicamento de acordo com o protocolo estabelecido no momento da padronização. Salientamos que o controle do uso do Sevoflurano não é atribuição da CFT devendo esta atribuição ser delegada à área técnica responsável

Sleep study, respiratory mechanics, chemosensitive response and quality of life in morbidly obese patients undergoing bariatric surgery: a prospective, randomized, controlled trial

<p>Abstract</p> <p>Background</p> <p>Obesity is a major public health problem in both developed and developing countries alike and leads to a series of changes in respiratory physiology. There is a strong correlation between obesity and cardiopulmonary sleep disorders. Weight loss among such patients leads to a reduction in these alterations in respiratory physiology, but clinical treatment is not effective for a long period of time. Thus, bariatric surgery is a viable option.</p> <p>Methods/Design</p> <p>The present study involves patients with morbid obesity (BMI of 40 kg/m²or 35 kg/m²to 39.9 kg/m²with comorbidities), candidates for bariatric surgery, screened at the Santa Casa de Misericórdia Hospital in the city of Sao Paulo (Brazil). The inclusion criteria are grade III morbid obesity, an indication for bariatric surgery, agreement to participate in the study and a signed term of informed consent. The exclusion criteria are BMI above 55 kg/m², clinically significant or unstable mental health concerns, an unrealistic postoperative target weight and/or unrealistic expectations of surgical treatment. Bariatric surgery candidates who meet the inclusion criteria will be referred to Santa Casa de Misericórdia Hospital and will be reviewed again 30, 90 and 360 days following surgery. Data collection will involve patient records, personal data collection, objective assessment of HR, BP, neck circumference, chest and abdomen, collection and analysis of clinical preoperative findings, polysomnography, pulmonary function test and a questionnaire on sleepiness.</p> <p>Discussion</p> <p>This paper describes a randomised controlled trial of morbidly obese patients. Polysomnography, respiratory mechanics, chemosensitive response and quality of life will be assessed in patients undergoing or not undergoing bariatric surgery.</p> <p>Trial Registration</p> <p>The protocol for this study is registered with the Brazilian Registry of Clinical Trials - ReBEC (RBR-9k9hhv).</p