61 documents found, page 1 of 7

University students’ perceptions of the B-Learning methodology

The times of the last pandemic that plagued humanity challenged educators to find alternatives to face-to-face teaching, which arose through technological applications. Based on the symbiosis between face-to-face teaching and distance learning, this study seeks to gain insight into the perceptions of Mathematics and Biomedical Sciences students at a Portuguese public university regarding the b-learning methodol...

An enhanced version of the SSA-HJ-biplot for time series with complex structure

HJ-biplots can be used with singular spectral analysis to visualize and identify patterns in univariate time series. Named SSA-HJ-biplots, these graphs guarantee the simultaneous representation of the trajectory matrix’s rows and columns with maximum quality in the same factorial axes system and allow visualization of the separation of the time series components. Structural changes in the time series can make i...

Multiplicative mixed-effects modelling of dengue incidence: an analysis of the ...

Dengue is a vector-borne disease that is endemic to several countries, including the Dominican Republic, which has experienced dengue outbreaks for over four decades. With outbreaks growing in incidence in recent years, it is becoming increasingly important to develop better tools to understand drivers of dengue transmission. Such tools are critical for providing timely information to assist healthcare authorit...

Adaptação transcultural do SATS-36 para estudantes do 3º ciclo do ensino básico...

A atitude dos estudantes em relação à Estatística é um tema amplamente investigado a nível do ensino universitário mas escasso em estudantes do 3º ciclo do ensino básico (idade esperada: 12-15 anos). Neste trabalho foi efetuada uma adaptação transcultural, do inglês para o português (europeu) e para estudantes daquele ciclo de escolaridade, da escala de atitudes em relação à Estatística SATS-36© (Survey of Atti...

Thyroid Cancer Incidence in North Region of Portugal

Evolution of diet patterns over time in Europe from 1963 to 2013

Evolution of diet patterns over time in Europe from 1963 to 2013: an explorator...

In this study, this statistical procedure is explored to reduce the dimensionality of the evolution of diet patterns of ten countries in Europe during five decades. The main focus is on a temporal composition of the consumption in the diet of the four macronutrients.

COVID-19's pandemic: a new way of thinking through linear combinations of propo...

Knowledge about the evolution of an epidemic is of critical importance for assessing the needs of the National Health System (NHS), planning the necessary responses and coordinating resources countrywide. In this work, we analyze the behavior of the COVID-19 epidemic curve in Portugal, by using linear combinations of proportions. These proportions are based on the number of nonhospitalized and hospitalized case...

Semidefinite optimization models in multivariate statistics: a survey

No abstract available.

Thyroid cancer incidence in north region of Portugal: a spatial analysis using ...

No abstract available.