We study the effects of dust grain size on the spectral energy distribution (SED) of spherical circumstellar envelopes. Based on the self-similarity relations of dusty SEDs derived by Ivezić & Elitzur (1997), we expect an approximate invariance of the IR SED for models with different grain sizes. Approximate invariance follows from the fact that differently sized grains have similar optical pro...

This study aimed to investigate whether sedentary time (Sed) and physical activity (PA) are associated with arterial stiffness in individuals with and without metabolic syndrome (MetS). This cross-sectional study comprised 197 individuals (47±13 years; 58% female) from a primary health care centre. Arterial stiffness was assessed using carotid-femoral pulse wave velocity (cfPWV). Metabolic synd...

The significance of 6-8 wk of high-intensity sprint training (HIST) on contractile abnormalities of myocytes isolated from rat hearts with prior myocardial infarction (MI) was investigated. Compared with the sedentary (Sed) condition, HIST attenuated myocyte hypertrophy observed post-MI primarily by reducing cell lengths but not cell widths. At high extracellular Ca(2+) concentration (5 mM) and...

Existing models of dynamic contracts impose that it is both optimal and feasible for the contracting parties to bind themselves together forever This paper introduces optimal termination in dynamic contracts We modify the standard dynamic agency model to include an external labor market which upon the dissolution of the contract allows the rm to return to the labor market to seek a new match Un...

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BACKGROUND Anticholinergic and sedative (ACh-Sed) medications are commonly prescribed for older adults and are associated with adverse events. OBJECTIVES (1) To investigate perspectives of health care practitioners (HCPs) surrounding deprescribing (withdrawal) of ACh-Sed medications in older adults; (2) to assess HCPs' perspectives on the design and implementation of a report on a patient's e...

This study explored mitochondrial capacities to oxidize carbohydrate and fatty acids and functional optimization of mitochondrial respiratory chain complexes in athletes who regularly train at high exercise intensity (ATH, n = 7) compared with sedentary (SED, n = 7). Peak O(2) uptake (Vo(2max)) was measured, and muscle biopsies of vastus lateralis were collected. Maximal O(2) uptake of saponin-...

BACKGROUND This study examined a programme of pre-conditioning exercise with subsequent high intensity interval training (HIIT) on blood pressure, echocardiography, cardiac strain mechanics and maximal metabolic (MET) capacity in sedentary (SED) aging men compared with age matched masters athletes (LEX). METHODS Using a STROBE compliant observational design, 39 aging male participants (SED; n...

BACKGROUND Physical exercise can modify subsequent energy intake and appetite and may thus be of particular interest in terms of obesity treatment. However, it is still unclear whether an intensive bout of exercise can affect the energy consumption of obese children and adolescents. OBJECTIVE To compare the impact of high vs. moderate intensity exercises on subsequent 24-h energy intake, macr...