Background: Obesity is a significant global public health problem and the main cause of many chronic diseases in both developed and developing countries. The increase in obesity in different populations worldwide cannot be explained solely by metabolic and genetic factors; environmental and social factors also have a strong association with obesity. Thus, it is believed that the current obesity epidemic is the ...
Objectives: Childhood obesity is a public health concern in Portugal. Socio-demographic and behavioral factors are highly associated with obesity but are not clearly understood. This article aims to update the prevalence of overweight and obesity in Portuguese children and to explore the influence and risks of socio-demographic factors and behavioral factors.factors and behavioral factors. Methods: A cross-sect...
A actividade física (af) tem um papel fundamental na melhoria da saúde e no bem -estar. no entanto, nas sociedades modernas, os estilos de vida estão a mudar no sentido de comportamentos mais sedentários, o que contribui para um aumento do risco de desenvolvimento de doenças crónicas, como diabetes tipo ii, doenças cardiovasculares, hipertensão, alguns tipos de cancro, doenças músculo -esqueléticas, obesidade, ...
Three new lanthanide(III) complexes (Ln = Sm, Tb and Eu) of picolinic and glutaric acid were prepared and characterised. The crystal structure of the complex [Sm(glu)(pic)- (H2O)2] (where Hpic and H2glu stand for picolinic and glutaric acid, respectively) was determined by single-crystal Xray diffraction. All the Ln complexes were characterised by elemental analysis, infrared spectroscopy, X-ray powder diffract...
Novel luminescent polyoxometalate anion-pillared layered double hydroxides (LDHs) were prepared by aqueous ion exchange of a Zn–Al LDH precursor in nitrate form with the europium-containing polyoxotungstate anions [EuW10O36]9–, [Eu(BW11O39)(H2O)3]6– and [Eu(PW11O39)2]11–. The host– guest interaction has a strong influence on the nature of the final intercalated species, as evidenced by elemental analy- Introduc...
Photoluminescent lanthanopolyoxotungstate core/shell nanoparticles are prepared by the encapsulation of lanthanide-containing polyoxometalates (POMs) with amorphous silica shells. The preparation of morphological well-defined core/shell nanoparticles is achieved by the hydrolysis of tetraethoxysilane in the presence of POMs using a reverse microemulsion method. The POMs used are decatungstolanthanoates of [Ln(W...
Investigação empírica, enquanto a abordagem conceitual emergiu apenas nos anos oitenta do século XX. De fato, só a partir daquela década assistimos ao desenvolvimento de uma investigação mais estruturada, alicerçada no enfoque epistemológico e realizada exclusivamente por geógrafos. Foi nessa década que também surgiu, em Portugal e na Espanha, uma investigação mais sustentada no seio da Geografia da Saúde. O pr...
2-(Methoxycarbonylmethylsulfanyl)-3,5-dinitrobenzenecarboxylic acid was prepared by nucleophilic substitution. FT-IR and FT-Raman spectra of 2-(methoxycarbonylmethylsulfanyl)-3,5-dinitrobenzenecarboxylic acid were recorded and analyzed. Surface enhanced Raman scattering (SERS) spectrum was recorded on a silver colloid. The vibrational wavenumbers were computed by density functional theoretical (DFT) computation...
http://www.sciencedirect.com/science/article/B6VBF-4VB4XHM-1/2/76b759dd0618092d16398ac91a7f4c71
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