Hypothesis Testing
Mostrando 1-12 de 301 artigos, teses e dissertações.
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1. Parenting practices during early childhood: validity evidence of a Brazilian scale
Abstract Objective: The present study aims to analyze the validity of evidence and internal consistency of an inventory for assessing parenting practices during early childhood. Method: Participants were 857 mothers of one-to-42-months children recruited in three cities in the Southeast region and one city in the Midwest region of Brazil. The participants
Jornal de Pediatria. Publicado em: 2022
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2. Doppler Ultrasound Testing Suggests Hemorrhoids in Females may be a Consequence of Impaired Blood Flow Associated with Pelvic Organ Prolapse
Abstract Background It has been observed that there is a high incidence of hemorrhoids in female patients with pelvic organ prolapse. Also, in these patients, hemorrhoidal disease improves after the surgical correction of the pelvic organ prolapse. Objective Our hypothesis was that a cause-effect relationship between pelvic organ prolapse, and hemorrhoids
Journal of Coloproctology (Rio de Janeiro). Publicado em: 2022
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3. Is serum PSA a predictor of male hypogonadism? Testing the hypothesis
ABSTRACT Objective: Male hypogonadism (MH) is common among infertile men. Besides testosterone, limited MH biomarkers are available, while researchers have suggested the use of prostate-specific antigen (PSA) to help diagnose MH. Hence, we sought to evaluate the potential use of PSA to predict MH among relatively young men with infertility in Nigeria. Mate
Arch. Endocrinol. Metab.. Publicado em: 2021-04
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4. Tolerance of cowpea cultivars to pre-emergence application of sulfentrazone
ABSTRACT Improved methods of weed control are required to support expansion of large-scale cowpea cultivation in mid-west Brazil. With the aim of testing our hypothesis that the tolerance of cowpea cultivars to sulfentrazone is dose- and genotype-dependent, we assessed the effects of increasing doses (0, 250, 500 and 1,000 g ha-1 of sulfentrazone) on the cul
Rev. Ceres. Publicado em: 2021-02
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5. Patterns of avian malaria in tropical and temperate environments: testing the "The enemy release hypothesis"
Resumo: De acordo com a hipótese da liberação do inimigo (HLI), a disseminação de espécies invasoras será facilitada pela liberação de seus inimigos ao ocuparem novas áreas. No entanto, a HLI raramente é testada comparando-se as populações de espécies nativas (não invasivas, estabelecidas há muito tempo) que apresentam expansão ou alteraçã
Biota Neotrop.. Publicado em: 09/09/2019
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6. Speed and Grade Increment During Cardiopulmonary Treadmill Testing: Impact on Exercise Prescription
Abstract Background: Maximal oxygen uptake (VO2max) and both first (VT1) and second (VT2) thresholds have been used as reference points for exercise prescription in different populations. Objective: We aimed to test the hypothesis that exercise prescription, based on VTs determined by treadmill cardiopulmonary exercise testing (CPET), is influenced by the
Int. J. Cardiovasc. Sci.. Publicado em: 12/08/2019
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7. Persuasion at Different Levels of Elaboration: Experimental Effects of Strength, Valence and Ego Depletion
Resumo Pessoas são vítimas de golpes e fraudes contra o consumidor diariamente. No entanto, na maioria dos casos, a vítima poderia ter detectado a fraude se tivesse dado atenção para as inconsistências na mensagem do estelionatário. Por que algumas pessoas são capazes de detectar e evitar um golpe enquanto outras não? Este artigo investiga em dois e
Trends Psychol.. Publicado em: 13/06/2019
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8. A 15-Year Perspective of the Fabry Outcome Survey
Abstract The Fabry Outcome Survey (FOS) is an international long-term observational registry sponsored by Shire for patients diagnosed with Fabry disease who are receiving or are candidates for therapy with agalsidase alfa (agalα). Established in 2001, FOS provides long-term data on agalα safety/efficacy and collects data on the natural history of Fabry di
J. inborn errors metab. screen.. Publicado em: 30/05/2019
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9. Impacto do BNDES na eficiência da indústria siderúrgica: aplicação do modelo Malmquist de dois estágios
Resumo Utilizando o modelo Malmquist de análise envoltória de dados (Data Envelopment Analysis - DEA) de dois estágios, este artigo busca avaliar como o Banco Nacional de Desenvolvimento Econômico e Social (BNDES) impacta o desempenho da indústria siderúrgica. Para tanto, são conduzidas a decomposição do índice de Malmquist e a regressão não line
Cad. EBAPE.BR. Publicado em: 30/05/2019
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10. Inflated Kumaraswamy distributions
Abstract: The Kumaraswamy distribution is useful for modeling variables whose support is the standard unit interval, i.e., (0, 1). It is not uncommon, however, for the data to contain zeros and/or ones. When that happens, the interest shifts to modeling variables that assume values in [0, 1), (0, 1] or [0, 1]. Our goal in this paper is to introduce inflated
An. Acad. Bras. Ciênc.. Publicado em: 23/05/2019
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11. A estrutura silábica do alemão como língua estrangeira na interlíngua de aprendizes brasileiros
Resumo A presente pesquisa explora as estratégias de reformulação de constituintes silábicos complexos na Interlíngua de 18 brasileiros aprendizes do Alemão como Língua Estrangeira. Nossa hipótese prevê que estes aprendizes possuem dificuldades na produção de ataques iniciais e codas finais do ALE e, ao tentar acomodá-las ao molde silábico da LM
Pandaemonium ger.. Publicado em: 2019-04
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12. Effect of previous soil management on sugarcane response to nitrogen fertilization
ABSTRACT: N Fertilizer recommendations must be improved to optimize N use efficiency (NUE) for bioenergy crops. A study was conducted to test the hypothesis that sites varying in historical usage of by-product differ in soil N-supplying power and sugarcane (Saccharum spp.) responsiveness to N fertilization. Our aim was to quantify soil N availability and N f
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-02