Validation of a 3d camera system for cycling analysis

Background: Kinematic analysis aimed toward scientific investigation or professional purposes is commonly unaffordable and complex to use. Objective: The purpose of this study was to verify concurrent validation between a cycling-specific 3D camera and the gold-standard 3D general camera systems. Methods: Overall, 11 healthy amateur male triathletes were filmed riding their bicycles with Vicon 3D cameras and the Retul 3D cameras for bike fitting analysis simultaneously. All 18 kinematic measurements given by the bike fitting system were compared with the same data given by Vicon cameras through Pearson correlation (r), intraclass correlation coefficients (ICC), standard error measurements (SEM), and Bland–Altman (BA) analysis. Confidence intervals of 95% are given. Results: A very high correlation between cameras was found on six of 18 measurements. All other presented a high correlation between cameras (between 0.7 and 0.9). In total, six variables indicate a SEM of less than one degree between systems. Only two variables indicate a SEM higher than two degrees between camera systems. Overall, four measures indicate bias tendency according to BA. Conclusions: The cycling-specific led-emitting 3D camera system tested revealed a high or very high degree of correlation with the gold-standard 3D camera system used in laboratory motion capture. In total, 14 measurements of this equipment could be used in sports medicine clinical practice and even by researchers of cycling studies

Construção e validação de game educativo de cateterismo vesical: Instrumento de aprendizagem / Construction and validation of vesical catheterism education group: Learning tool

Contextualização: O cateterismo vesical é um dos procedimentos mais amplamente praticados na área da saúde e segue sendo de inestimável valor para o diagnóstico e tratamento de diversificadas condições de saúde. No entanto, a sua execução pode ter sérias complicações, se realizada sem cuidados que minimizam o risco de infecção urinária. Considerando os Games educativos como tecnologia para treino de habilidade em ambiente virtual que se inserem cada vez mais no ensino de Enfermagem é que emerge a finalidade deste estudo. Objetivo: Construir e validar quanto ao conteúdo um Game de cateterismo vesical para ser utilizado entre estudantes do curso de graduação em enfermagem. Metodologia: Trata-se de um estudo piloto do tipo metodológico, no qual foi desenvolvido um game de cateterismo vesical e aplicado teste de validação quanto a conteúdo e critério. Discussão: Os questionários foram direcionados e realizado com 16 estudantes concluintes do curso de enfermagem, no qual o estudo visa avaliar a eficácia do piloto como mediadoras na educação em saúde, englobando como principal objetivo informar o jogador quanto ao seu progresso ou qual sua relação entre seu desempenho e o sistema em uso que ocorre simultaneamente.  Resultados: 16 estudantes participaram do estudo. E validaram o game quanto a seu conteúdo. Conclusão. O game de cateterismo vesical foi validado frente ao seu conteúdo e critério pelos estudantes de enfermagem.

Validação de script para desenvolvimento de um vídeo educativo: cateterismo urinário, e agora? / Script validation for the development of an educational video: urinary catheterism, what now?

Contextualização: As infecções do trato urinário são destacadas como a principal infecção relacionada à assistência à saúde no mundo. No Brasil o principal fator associado a ITU é a técnica de realização do cateterismo urinário que deve ser executada pelo Enfermeiro que aprende durante a sua graduação. Com vistas a garantir uma ferramenta adequada para facilitar a aprendizagem deste procedimento, propõem-se a criação de uma vídeo-aula da temática. Objetivo: Validar com Juízes peritos um script de vídeo-aula para aprendizagem teórica do cateterismo urinário permanente e intermitente limpo, masculino e feminino. Metodologia: Trata-se de um estudo do tipo metodológico, no qual foi desenvolvido um script de vídeo-aula sobre cateterismo urinário com validação por onze juízes - que são peritos no assunto.

An overview on the mycoparasitic Piptocephalis (Zoopagomycota): taxonomic notes and geographic distribution with new occurrences for South America

ABSTRACT Piptocephalis includes mycoparasitic fungi, mainly targeting mucoralean species. Until now, there has been no compilation of data on the taxonomy and geographic distribution of Piptocephalis, which is a barrier to the proper identification of species of this genus by taxonomists. The present study provides an overview of Piptocephalis with taxonomic and occurrence data, in addition to reporting P. graefenhanii and P. xenophila for the first time in South America. Both species were observed parasitizing Mucor spp. The P. graefenhanii was observed growing on paca dung and P. xenophila was observed on guinea-pig dung in Recife, northeastern Brazil. Aspects of their morphology are discussed and a key for the genus is presented

Atualizações sobre a doença de Alzheimer e seus estágios clínicos: Update on Alzheimer's disease and its clinical stages

A doença de Alzheimer é a causa mais comum de demência e uma das principais fontes de morbidade e mortalidade no envelhecimento da população. As alterações neuropatológicas marcantes da DA são placas difusas e neuríticas, marcadas pela deposição extracelular de beta-amiloide, e emaranhados neurofibrilares, compostos pelo acúmulo intracelular de proteína tau hiperfosforilada. Os déficits cognitivos aparecem e progridem insidiosamente, o comprometimento da memória, especificamente a perda de memória de eventos recentes, é a característica mais frequente da DA e geralmente é sua primeira manifestação. Outros déficits cognitivos aparecem com ou após o desenvolvimento do comprometimento da memória. A disfunção executiva e habilidades visuoespaciais prejudicadas tendem a ser afetadas precocemente, enquanto déficits na função da linguagem e sintomas comportamentais geralmente se manifestam mais tarde. Os sintomas neuropsiquiátricos e comportamentais são comuns nos estágios intermediários e tardios da DA, mas podem ocorrer no início do curso em alguns pacientes. Os déficits neurológicos não cognitivos, sinais motores piramidais e extrapiramidais, mioclonias e convulsões podem ocorrer nos estágios finais da DA, mas são incomuns nos estágios iniciais e intermediários.  As apresentações atípicas incluem uma variante visual (atrofia cortical posterior), uma variante com afasia progressiva e uma variante com disfunção executiva progressiva como sintoma predominante. As apresentações atípicas são mais comuns em pessoas mais jovens com DA. A DA é inexoravelmente progressiva, mas a taxa de progressão pode variar. A expectativa média de vida após o diagnóstico foi relatada entre 8 e 10 anos, mas pode variar de 3 a 20 anos. A DA deve ser suspeitada em qualquer idoso com início insidioso, declínio progressivo da memória e pelo menos um outro domínio cognitivo que leve ao funcionamento prejudicado.&nbsp

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences

The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on 18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based researchers who signed it in the short time span from 20 September to 6 October 2016

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Simulation Of In Vitro Digestion Coupled To Gastric And Intestinal Transport Models To Estimate Absorption Of Anthocyanins From Peel Powder Of Jabuticaba, Jamelão And Jambo Fruits

The bioaccessibility of the anthocyanins from peel powder of jabuticaba, jamelão and jambo fruits under gastro-intestinal conditions and their gastric and intestinal absorption was examined in order to estimate anthocyanin transport efficiency (ATE). Thus, in vitro digestion coupled to epithelium absorptive models (gastric MKN-28 and intestinal Caco-2) was applied independently for each phase. The bioaccessibility of anthocyanins after gastric digestion were 13% for jabuticaba, 45% for jambo and 65% for jamelão, whereas intestinal bioaccessibility were 10% for jabuticaba, 15% for jambo and 45% for jamelão. The assays showed that, applying the MKN-28 cell model, the ATE were 19.7, 9.7 and 14.1%, respectively, for jambo, jabuticaba, and jamelão powders, whereas using the Caco-2 cell model these results were 0.8, 0.2 and 0.3%, respectively. In conclusion gastric mucosa plays an important role in anthocyanin's absorption. © 2016 Elsevier Ltd.2437338