Elementos de terapéutica y de clínica dosimétricas

A la part superior de la portada: Concurso de Instituto de Medicina Dosimétrica de Paris, año 1886. Primer premio, llamado Premio Burggraeve (dos mil francos

rASUDAS: A New Web-Based Application for Estimating Ancestry from Tooth Morphology

The use of crown and root morphology to estimate population relationships has a long history in dental anthropology. Over the past two decades, methods employing dental morphology within forensic anthropology have been formalized with the incorporation of statistical models. This paper presents a new web-based application (rASUDAS) that estimates the ancestry of unknown individuals based on their suite of tooth crown and root traits. The application utilizes 21 independent traits that were scored following the Arizona State University Dental Anthropology System (ASUDAS). The reference sample represents approximately 30,000 individuals from seven biogeographic regions. A naive Bayes classifier algorithm was created in the R open source programming language to assign posterior probabilities for individual group assignment. To test the application, 150 individuals were selected from the C. G. Turner II database with the proviso that an individual had to be scored for a minimum of 12 of the 21 traits. In a seven-group analysis, the model correctly assigned individuals to groups 51.8% of the time. In a four-group analysis, classification accuracy improved to 66.7%. With three groups, accuracy was at 72.7%. It is still necessary to validate the program using forensic cases and to augment the reference sample with modern skeletal data. However, results from the beta version of rASUDAS are presented as proof of concept on the potential of dental morphology in ancestry estimation in forensic contexts

Yield and distribution of biomass and nutrients in peach palm cropped under irrigation in the semi-arid area of brazilian Northeast.

The objective of this paper was to quantify the biomass and the nutrient concentration in the components of the peach palm (Bactris gasipaes H.B.K.)

Evidence of resonant surface wave excitation in the relativistic regime through measurements of proton acceleration from grating targets

The interaction of laser pulses with thin grating targets, having a periodic groove at the irradiated surface, has been experimentally investigated. Ultrahigh contrast ($\sim 10^{12}$) pulses allowed to demonstrate an enhanced laser-target coupling for the first time in the relativistic regime of ultra-high intensity >10^{19} \mbox{W/cm}^{2}. A maximum increase by a factor of 2.5 of the cut-off energy of protons produced by Target Normal Sheath Acceleration has been observed with respect to plane targets, around the incidence angle expected for resonant excitation of surface waves. A significant enhancement is also observed for small angles of incidence, out of resonance.Comment: 5 pages, 5 figures, 2nd version implements final correction

Produção e distribuição de biomassa em pupunha, sob condições irrigadas na região semi-árida.

O presente trabalho teve por objetivo quantificar a biomassa dos componentes da pupunha.Suplemento. Edição dos Resumos do 37 Congresso Brasileiro de Olericultura, Manaus, 1997. Resumo 092

A violência contra mulheres: demandas espontâneas e busca ativa em unidade básica de saúde

Acolher demandas e assistir mulheres que sofrem violência é parte dos direitos em saúde, embora a assistência não esteja estruturada e ocorra pouca detecção de casos. Buscou-se um diagnóstico de situação em serviços, avaliando-se a emergência de demandas referidas à violência por parte das usuárias de uma unidade básica da rede pública, contrastando-se a demanda espontânea com a busca ativa de casos. Realizou-se um primeiro estudo por técnicas de observação participante, seguida de estudo de prontuário, com 142 mulheres sendo acompanhadas; num segundo estudo, em uma amostra de 322 usuárias, aplicou-se entrevista. Em atividades grupais observou-se relatos espontâneos e nos prontuários médicos registros de demandas espontâneas; o mesmo não ocorreu em consultas individuais. A entrevista detectou uma prevalência de casos muito maior. Então, a possibilidade de detecção de casos, seu acolhimento e algumas respostas do serviço, requer especificidade de abordagem e cuidados próprios para que a violência contra mulheres possa emergir como parte da demanda usual na saúde

Produtividade do aspargo sob irrigacao na regiao do Submedio Sao Francisco.

O objetivo do presente trabalho foi avaliar uma colecao de cultivares e hibridos de aspargo (Asparagus officinalis L.), quanto a produtividade e adaptabilidade as condicoes do Submedio Sao Francisco. A avaliacao foi realizada no Campo Experimental de Bebedouro (Embrapa Semi-Arido), em Petrolina-PE, durante o periodo de 1991 a 1994. A colecao, constituida por duas cultivares e doze hibridos provenientes de Pelotas-RS, dez hibridos da Franca e tres hibridos dos Estados Unidos, foi implantada em 15 de agosto de 1990. Na avaliacao da produtividade, considerou-se apenas os turioes brancos, retos, sem manchas ou lesoes, com diametro acima de 8mm e comprimento variando de 15 a 20 cm. A produtividade media por genotipo durante o periodo de 1991 a 1994 variou de 1,74 a 6,33t/ha. O ano de 1992 destacou-se com a maior produtividade media (4,46t.ha). Os hibridos de origem francesa apresentaram uma acentuada mortalidade de plantas, indicando uma provavel inadaptacao as condicoes da regiao. Os hibridos W 12 x 14, G 4 x 14 e G 103 x 14, procedentes de Pelotas, destacaram-se com produtividades medias superiores a 4,40t.ha. Estes dados indicam os aspargo como uma boa alternativa agricola para os perimetros irrigados da regiao Nordeste do Brasil, oferecendo, inclusive, condicoes de a regiao competir nos mercados interno e externo

Produtividade da pupunha irrigada em solo arenoso no Vale do Sao Francisco.

O objetivo deste experimento foi avaliar o efeito de dois espaçamentos de plantio.Resumo

A Novel Virtual Reality Assessment of Functional Cognition: Validation Study.

BACKGROUND: Cognitive deficits are present in several neuropsychiatric disorders, including Alzheimer disease, schizophrenia, and depression. Assessments used to measure cognition in these disorders are time-consuming, burdensome, and have low ecological validity. To address these limitations, we developed a novel virtual reality shopping task-VStore. OBJECTIVE: This study aims to establish the construct validity of VStore in relation to the established computerized cognitive battery, Cogstate, and explore its sensitivity to age-related cognitive decline. METHODS: A total of 142 healthy volunteers aged 20-79 years participated in the study. The main VStore outcomes included verbal recall of 12 grocery items, time to collect items, time to select items on a self-checkout machine, time to make the payment, time to order coffee, and total completion time. Construct validity was examined through a series of backward elimination regression models to establish which Cogstate tasks, measuring attention, processing speed, verbal and visual learning, working memory, executive function, and paired associate learning, in addition to age and technological familiarity, best predicted VStore performance. In addition, 2 ridge regression and 2 logistic regression models supplemented with receiver operating characteristic curves were built, with VStore outcomes in the first model and Cogstate outcomes in the second model entered as predictors of age and age cohorts, respectively. RESULTS: Overall VStore performance, as indexed by the total time spent completing the task, was best explained by Cogstate tasks measuring attention, working memory, paired associate learning, and age and technological familiarity, accounting for 47% of the variance. In addition, with λ=5.16, the ridge regression model selected 5 parameters for VStore when predicting age (mean squared error 185.80, SE 19.34), and with λ=9.49 for Cogstate, the model selected all 8 tasks (mean squared error 226.80, SE 23.48). Finally, VStore was found to be highly sensitive (87%) and specific (91.7%) to age cohorts, with 94.6% of the area under the receiver operating characteristic curve. CONCLUSIONS: Our findings suggest that VStore is a promising assessment that engages standard cognitive domains and is sensitive to age-related cognitive decline