Background Sample size determination is essential for reliable hypothesis testing in clinical
trials and should rely on adequate sample size calculations with alpha, beta, variance, and …

El cálculo de tamaño de muestra es un aspecto esencial del diseño de estudios
cuantitativos. Un adecuado tamaño de muestra nos permite determinar cuál es la mínima …

Sažetak Calculating the sample size in scientific studies is one of the critical issues as
regards the scientific contribution of the study. The sample size critically affects the …

This article is the series of methodology of clinical prediction model construction (total 16
sections of this methodology series). The first section mainly introduces the concept, current …

Background: Mental health problems are prevalent among university students in Saudi
Arabia. This study aimed to investigate the impact of the COVID-19 pandemic on university …

The special situation brought about by the coronavirus pandemic and the confinement
imposed by the Government, has given rise to numerous changes in working habits. The …

Treating sarcopenia in older individuals remains a challenge, and nutritional interventions
present promising approaches in individuals that perform limited physical exercise. We …

Background Education is vital to increasing knowledge, improving prevention and self-care
practices for hypertension in older adults. This study aimed to determine the effectiveness of …

The use of biodiesel as an alternative fuel in the pursuit of renewable and sustainable
energy has raised new technological, economic and environmental concerns. Although it …

Implementation science is the study of methods to promote the systematic uptake of
evidence based interventions into practice and policy to improve health. Despite the need …