115 research outputs found

    Undergraduate Nurse Educators’ Perceived Structural Empowerment, Self-Efficacy for Teaching, and Perceptions of Uncivil Classroom Behaviours in Academic Settings

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    Background: This study examined the relationship among structural empowerment in academia, nurse educators’ self-efficacy for teaching, and their perceptions of the types and frequencies of uncivil classroom behaviours. Methods: 56 participants, registered with the College of Nurses of Ontario (CNO), responded to a mail-out survey package containing four tools corresponding to each study variable. The analysis includes study descriptives, ANOVA analyses, correlations of total and subscales, and mediation analyses of the major study variables. Results: A moderate level of structural empowerment and a high level of self-efficacy for teaching was found within the study. A significant indirect relationship was seen between informal power, self-efficacy for classroom management, and the perceived frequency of low-level uncivil classroom behaviours reported by nurse educators. Conclusions: Results show the importance of collegiality in nursing academia as it can influence educator confidence in managing uncivil classroom behaviours

    Prestação de Contas dos Recursos: Fazer Cumprir as Responsabilidades do Estado de Fornecer Recursos Adequados e Equitativos para ser Efetivamente Usados para Brindar a Todos os Alunos uma Educação de Qualidade

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    Darling-Hammond, Wilhoit, and Pittenger (2014) addressed the need for states to align their accountability systems with new college- and career-ready learning standards. The authors recommended a new accountability paradigm that focuses on 1) meaningful learning, enabled by 2) professionally skilled and committed educators, and supported by 3) adequate and appropriate resources. This paper explicates the provision of adequate and appropriate resources, the third of these three pillars of a comprehensive approach to accountability. Adequate resources, effectively used, are prerequisites to building the capacity of schools to deliver the two other pillars, professionally skilled and committed educators and meaningful learning. Also, the effective use of public school funding is an oft-ignored but crucial step toward ensuring equal educational opportunity for all students.En el número del el 18 de agosto 2014  esta publicación, los autores Linda Darling-Hammond, Gene Wilhoit, y Linda Pittenger abordaron la necesidad de que los estados alineen sus sistemas de responsabilidad educativa con un nuevo paradigma que prepare a los estudiantes para que sean exitosos en la universidad y carreras profesionaes. Los autores recomendaron un nuevo paradigma de la rendición de cuentas que se centrase en 1) el aprendizaje significativo, habilitado por 2) educadores profesionalmente cualificados y comprometidos, y con el apoyo de 3) los recursos adecuados y apropiados (Darling-Hammond, Wilhoit, y Pittenger, 2014). En este trabajo se explicita la provisión de los recursos adecuados y apropiados, el tercero de estos tres pilares de un enfoque integral para la rendición de cuentas. Recursos suficientes que se usen con eficacia, son requisitos previos para viabilizar la capacidad de las escuelas para sustentar los otros dos pilares, educadores profesionalmente cualificados y comprometidos y lso aprendizajes significativos. Además, la financiación efectiva de la de escuelas públicas es un paso a menudo ignorado, pero crucial para garantizar la igualdad de oportunidades educativas para todos los estudiantes.No número de 18 agosto de 2014 desta publicação, os autores Linda Darling-Hammond, Gene Wilhoit, e Linda Pittenger abordaram a necessidade de que os Estados alinhem seus sistemas de ensino com um novo paradigma de responsabilidade educacional que prepare os alunos para ser bem sucedidos nos estudos universitários e as carreiras profesionais. Os autores recomendam um novo paradigma de responsabilidade educativa baseados em 1) a aprendizagem significativa, ativado por 2) educadores profissionalmente qualificados e comprometidos, e com o apoio de 3) recursos adequados e apropriados (Darling-Hammond, Wilhoit, e Pittenger, 2014). Neste trabalho, o fornecimento de recursos adequados e apropriados são explícitas, o terceiro dos três pilares de uma abordagem abrangente para a prestação de contas. Recursos suficientes utilizados de forma eficaz, são pré-requisitos para viabilizar a capacidade das escolas para sustentar os outros dois pilares, educadores profissionalmente qualificados e comprometidos e aprendizagem significativa. Além disso, o financiamento eficaz das escolas públicas é um passo muitas vezes esquecido, mas crucial para garantir a igualdade de oportunidades educacionais para todos os alunos

    O direito à educação infantil: demandas judiciais por uma oferta adequada

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    Este artigo apresenta uma retrospectiva do contexto de decisões judiciais que lidam com a questão do acesso à Educação Infantil nos Estados Unidos, quando do ano de 2006, data da publicação original do texto. Para tanto, primeiramente se discute o contexto da grande quantidade de casos em diversos estados norteamericanos envolvendo demandas por maior equidade no financiamento da educação, bem como a crescente utilização de estudos de custo que visam determinar o real custo de uma educação adequada. Em seguida, volta-se para a inclusão da demanda por Educação Infantil nos pedidos dos ingressantes que reclamavam por oportunidade educacionais equitativas para crianças em situação de pobreza. Desse modo, a medida que cresce a preocupação relativa às necessidades dos estudantes na análise das cortes, diversos casos indicam à conclusão de que o acesso a programas de Educação Infantil para crianças de 3 e 4 anos em situação de pobreza é parte do direito constitucional a uma educação adequada, sendo considerada a intenção de que, algum dia, sejam superadas as diferenciações raciais e econômicas no interior do sistema educacional dos Estados Unidos

    Differential Susceptibility to Hypertension Is Due to Selection during the Out-of-Africa Expansion

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    Hypertension is a leading cause of stroke, heart disease, and kidney failure. The genetic basis of blood pressure variation is largely unknown but is likely to involve genes that influence renal salt handling and arterial vessel tone. Here we argue that susceptibility to hypertension is ancestral and that differential susceptibility to hypertension is due to differential exposure to selection pressures during the out-of-Africa expansion. The most important selection pressure was climate, which produced a latitudinal cline in heat adaptation and, therefore, hypertension susceptibility. Consistent with this hypothesis, we show that ecological variables, such as latitude, temperature, and rainfall, explain worldwide variation in heat adaptation as defined by seven functional alleles in five genes involved in blood pressure regulation. The latitudinal cline in heat adaptation is consistent worldwide and is largely unmatched by latitudinal clines in short tandem repeat markers, control single nucleotide polymorphisms, or non-functional single nucleotide polymorphisms within the five genes. In addition, we show that latitude and one of these alleles, GNB3 (G protein β3 subunit) 825T, account for a major portion of worldwide variation in blood pressure. These results suggest that the current epidemic of hypertension is due to exposures of the modern period interacting with ancestral susceptibility. Modern populations differ in susceptibility to these new exposures, however, such that those from hot environments are more susceptible to hypertension than populations from cold environments. This differential susceptibility is likely due to our history of adaptation to climate

    A multi-stage genome-wide association study of bladder cancer identifies multiple susceptibility loci.

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    We conducted a multi-stage, genome-wide association study of bladder cancer with a primary scan of 591,637 SNPs in 3,532 affected individuals (cases) and 5,120 controls of European descent from five studies followed by a replication strategy, which included 8,382 cases and 48,275 controls from 16 studies. In a combined analysis, we identified three new regions associated with bladder cancer on chromosomes 22q13.1, 19q12 and 2q37.1: rs1014971, (P = 8 × 10⁻¹²) maps to a non-genic region of chromosome 22q13.1, rs8102137 (P = 2 × 10⁻¹¹) on 19q12 maps to CCNE1 and rs11892031 (P = 1 × 10⁻⁷) maps to the UGT1A cluster on 2q37.1. We confirmed four previously identified genome-wide associations on chromosomes 3q28, 4p16.3, 8q24.21 and 8q24.3, validated previous candidate associations for the GSTM1 deletion (P = 4 × 10⁻¹¹) and a tag SNP for NAT2 acetylation status (P = 4 × 10⁻¹¹), and found interactions with smoking in both regions. Our findings on common variants associated with bladder cancer risk should provide new insights into the mechanisms of carcinogenesis

    A multi-stage genome-wide association study of bladder cancer identifies multiple susceptibility loci.

    Get PDF
    We conducted a multi-stage, genome-wide association study of bladder cancer with a primary scan of 591,637 SNPs in 3,532 affected individuals (cases) and 5,120 controls of European descent from five studies followed by a replication strategy, which included 8,382 cases and 48,275 controls from 16 studies. In a combined analysis, we identified three new regions associated with bladder cancer on chromosomes 22q13.1, 19q12 and 2q37.1: rs1014971, (P = 8 × 10⁻¹²) maps to a non-genic region of chromosome 22q13.1, rs8102137 (P = 2 × 10⁻¹¹) on 19q12 maps to CCNE1 and rs11892031 (P = 1 × 10⁻⁷) maps to the UGT1A cluster on 2q37.1. We confirmed four previously identified genome-wide associations on chromosomes 3q28, 4p16.3, 8q24.21 and 8q24.3, validated previous candidate associations for the GSTM1 deletion (P = 4 × 10⁻¹¹) and a tag SNP for NAT2 acetylation status (P = 4 × 10⁻¹¹), and found interactions with smoking in both regions. Our findings on common variants associated with bladder cancer risk should provide new insights into the mechanisms of carcinogenesis

    Late-Stage Metastatic Melanoma Emerges through a Diversity of Evolutionary Pathways

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    UNLABELLED: Understanding the evolutionary pathways to metastasis and resistance to immune-checkpoint inhibitors (ICI) in melanoma is critical for improving outcomes. Here, we present the most comprehensive intrapatient metastatic melanoma dataset assembled to date as part of the Posthumous Evaluation of Advanced Cancer Environment (PEACE) research autopsy program, including 222 exome sequencing, 493 panel-sequenced, 161 RNA sequencing, and 22 single-cell whole-genome sequencing samples from 14 ICI-treated patients. We observed frequent whole-genome doubling and widespread loss of heterozygosity, often involving antigen-presentation machinery. We found KIT extrachromosomal DNA may have contributed to the lack of response to KIT inhibitors of a KIT-driven melanoma. At the lesion-level, MYC amplifications were enriched in ICI nonresponders. Single-cell sequencing revealed polyclonal seeding of metastases originating from clones with different ploidy in one patient. Finally, we observed that brain metastases that diverged early in molecular evolution emerge late in disease. Overall, our study illustrates the diverse evolutionary landscape of advanced melanoma. SIGNIFICANCE: Despite treatment advances, melanoma remains a deadly disease at stage IV. Through research autopsy and dense sampling of metastases combined with extensive multiomic profiling, our study elucidates the many mechanisms that melanomas use to evade treatment and the immune system, whether through mutations, widespread copy-number alterations, or extrachromosomal DNA. See related commentary by Shain, p. 1294. This article is highlighted in the In This Issue feature, p. 1275

    Identification of a novel susceptibility locus at 13q34 and refinement of the 20p12.2 region as a multi-signal locus associated with bladder cancer risk in individuals of european ancestry

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    Candidate gene and genome-wide association studies (GWAS) have identified 15 independent genomic regions associated with bladder cancer risk. In search for additional susceptibility variants, we followed up on four promising single-nucleotide polymorphisms (SNPs) that had not achieved genome-wide significance in 6911 cases and 11 814 controls (rs6104690, rs4510656, rs5003154 and rs4907479, P < 1 7 10(-6)), using additional data from existing GWAS datasets and targeted genotyping for studies that did not have GWAS data. In a combined analysis, which included data on up to 15 058 cases and 286 270 controls, two SNPs achieved genome-wide statistical significance: rs6104690 in a gene desert at 20p12.2 (P = 2.19 7 10(-11)) and rs4907479 within the MCF2L gene at 13q34 (P = 3.3 7 10(-10)). Imputation and fine-mapping analyses were performed in these two regions for a subset of 5551 bladder cancer cases and 10 242 controls. Analyses at the 13q34 region suggest a single signal marked by rs4907479. In contrast, we detected two signals in the 20p12.2 region-the first signal is marked by rs6104690, and the second signal is marked by two moderately correlated SNPs (r(2) = 0.53), rs6108803 and the previously reported rs62185668. The second 20p12.2 signal is more strongly associated with the risk of muscle-invasive (T2-T4 stage) compared with non-muscle-invasive (Ta, T1 stage) bladder cancer (case-case P 64 0.02 for both rs62185668 and rs6108803). Functional analyses are needed to explore the biological mechanisms underlying these novel genetic associations with risk for bladder cancer
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