193 research outputs found

    Social and Economic Impact of Solar Electricity at Schuchuli Village

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    Schuchuli, a small remote village on the Papago Indian Reservation in southwest Arizona, is 27 kilometers (17 miles) from the nearest available utility power. Its lack of conventional power is due to the prohibitive cost of supplying a small electrical load with a long-distance distribution line. Furthermore, alternate energy sources are expensive and place a burden on the resources of the villagers. On December 16, 1978, as part of a federally funded project, a solar cell power system was put into operation at Schuchuli. The system powers the village water pump, lighting for homes and other village buildings, family refrigerators and a communal washing machine and sewing machine

    Sofosbuvir and Daclatasvir Combination Therapy in a Liver Transplant Recipient With Severe Recurrent Cholestatic Hepatitis C

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    Recurrent HCV infection following liver transplantation can lead to accelerated allograft injury that is difficult to treat with interferon. The aim of this study is to describe the first ever use of an interferon‐free, all oral regimen in a liver transplant recipient with severe recurrent HCV. A 54‐year‐old male with HCV genotype 1b developed severe cholestatic HCV at 6 months posttransplant with ascites, AST 503 IU/mL, alkaline phosphatase of 298 IU/mL, HCV RNA of 12 000 000 IU/mL, and histological cholestasis with pericellular fibrosis. Sofosbuvir, an HCV polymerase inhibitor (400 mg/day), and daclatasvir, an HCV NS5A replication complex inhibitor (60 mg/day), were co‐administered for 24 weeks. Within 4 weeks of initiating treatment, serum HCV RNA levels became undetectable and liver biochemistries normalized with concomitant resolution of ascites. The patient achieved a sustained virological response with undetectable HCV RNA at 9 months posttreatment. During and following treatment, the daily dose and blood level of tacrolimus remained stable and unchanged. The rapid and sustained suppression of HCV replication in this liver transplant recipient provides great promise for the use of combination oral antiviral regimens in other immunosuppressed and interferon refractory HCV patients. A patient with severe cholestatic hepatitis C virus genotype 1b infection at nine months after liver transplantation was successfully treated with a six‐month course of oral sofosbuvir in combination with daclatasvir and remains HCV RNA negative during posttreatment follow‐up with improved liver biochemistries and health.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98302/1/ajt12209.pd

    Realtime wavefront sensing in a SPIM microscope, and active aberration tracking

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    Adaptive optics (AO) can potentially allow high resolution imaging deep inside living tissue, mitigating against the loss of resolution due to aberrations caused by overlying tissue. Closed-loop AO correction is particularly attractive for moving tissue and spatially varying aberrations, but this requires direct wavefront sensing, which in turn requires suitable "guide stars" for use as wavefront references. We present a novel method for generating an orthogonally illuminated guide star suitable for direct wavefront sensing in a wide range of fluorescent biological structures, along with results demonstrating its use for measuring time-varying aberrations, in vivo

    Closed loop adaptive optics with a laser guide star for biological light microscopy

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    We report on the development of a widefield microscope that achieves adaptive optics correction through the use of a wavefront sensor observing an artificial laser guide star induced within the sample. By generating this guide star at arbitrary positions and depths within the sample we allow the delivery of high-resolution images. This approach delivers much faster AO correction than image optimization techniques, and allows the use of AO with fluorescent imaging modalities without generating excessive photo-toxic damage in the sample, or inducing significant photo-bleaching in the flurophore molecules

    Desenvolvimento de políticas públicas municipais: redes intersetoriais e as estratégias de gestão.

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    A experiência apresentada neste artigo é referente a constituição da Rede Protetiva não especializada de Atenção às mulheres em Situação de Violência, no ano de 2010, no município de Viçosa-MG, em uma proposta de articulação institucional de diferentes setores governamentais e não governamentais, a fim de viabilizar a implementação da política social de enfrentamento à VCM, tendo como pressuposto, para a operacionalização das ações, a intersetorialidade. Buscou-se descrever estratégias e mecanismos de gestão utilizados pela Rede Protetiva, para viabilizar o atendimento às usuárias, em Viçosa – MG. Realizou-se um aprofundamento teórico sobre o desenvolvimento de políticas sociais, baseadas na intersetorialidade. Utilizaram-se dois instrumentos metodológicos distintos, a entrevista e a pesquisa documental. A gestão da Rede no caso estudado não se concretizou em termos de um aparato administrativo formalizado, não sendo designado ou criado um órgão que se responsabilizasse pela gestão, no que tange ao planejamento e coordenação das ações em relação ao poder público municipal. Assim, a construção de uma rede, pautada no atendimento e baseada na intersetorialidade, nos moldes prescritos nos documentos oficiais, enfrenta dificuldades de se concretizar no cotidiano, considerando-se os ajustes necessários para que o seu funcionamento aconteça na realidade dos municípios, a exemplo de Viçosa-MG, que não possui serviços especializados, e enfrenta, restrições orçamentárias; infraestrutura precária; insuficiente número de profissionais e de colaboração do poder público

    Maternal distress and perceptions of infant development following extracorporeal membrane oxygenation and conventional ventilation for persistent pulmonary hypertension

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    Neurodevelopmental outcome and concurrent maternal distress were examined for infants who suffered persistent pulmonary hypertension at birth and were treated with either extracorporeal membrane oxygenation (ECMO) ( n = 19) or conventional ventilation (CV) ( n = 15). Mothers were asked to complete inventories assessing their infant's (mean age 8.74 months) developmental growth as well as their own psychological health. Relevant sociodemographic and treatment parameters were also entered into the analysis. The results indicated that ECMO and CV infants did not differ on developmental indices and impairment rates were 15–23% respectively, similar to previous reports, in addition, ECMO and CV mothers did not differ in their reports of psychological distress. Correlational analyses revealed that length of treatment for ECMO but not CV infants significantly predicted developmental delay and maternal distress. For CV mothers, maternal distress was associated with the perception of delayed language. The results are discussed in terms of the limited morbidity associated with ECMO and CV interventions and the possible role of a ‘vulnerable child syndrome’ in understanding the maternal-infant relationship following ECMO therapy.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73367/1/j.1365-2214.1995.tb00410.x.pd
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