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Full text linkIntroduction: Managing obesity in patients with chronic kidney disease is crucial for managing disease progression. Psychological interventions, particularly cognitive behavioral therapy, can support lifestyle changes. This study aimed to evaluate the efficacy of a cognitive behavioral therapy intervention for obesity management in patients with chronic kidney disease. Methods: Forty patients with chronic kidney disease (stages 2–4) were randomized to either an intervention group (nutritional and physical activity counseling and 16-week cognitive behavioral therapy) or a control group (nutritional and physical activity counseling only). Primary outcomes were body mass index (BMI) and proteinuria. Results: The intervention group lost an average of 5.42 kg (BMI decrease: 1.82 kg/m²), compared to 1.53 kg (BMI decrease: 0.53 kg/m²) in the control group. A significant group-by-time interaction was observed for BMI (F(1,36) = 32.24, p = 0.004, ŋ²=0.21), favoring the intervention group. Effects remained significant at three-month follow-up, with an average weight loss of 4.63 kg (BMI decrease: 1.59 kg/m²) in the intervention group and 2.51 kg (BMI decrease: 0.87 kg/m²) in control group (F(2,70) = 5.54, p = 0.026, ŋ²=0.12). Changes in proteinuria did not differ between groups. Conclusion: Cognitive behavioral therapy was effective and well-tolerated for promoting weight loss with most of the lost weight maintained at the three-month follow-up. This intervention may offer a valuable non-pharmacological treatment option for weight management in patients with chronic kidney disease
Assessing silicate catchment dynamics of the oplotnica river (Slovenia) through stable carbon and nitrogen isotopes
Full text linkThis study investigated the sources of carbon and nitrogen in a small, silicate-dominated catchment (Oplotnica River, Pohorje, Slovenia) with two creeks, Lukanjski and Javorski, from 2012 to 2014. Additionally, carbon and nitrogen cycling in soil profles was studied at Javorski Creek. Isotopic analyses of river water, particulates, and sediments provided a more holistic view of the sources of carbon and nitrogen, weathering contributions, and the evasion or sequestration of CO2 in the atmosphere within the catchments. The weathering of rocks, such as granodiorite and quartz diorite, infuences water geochemistry. The Oplotnica River and its tributaries were characterized by the ion composition: Na+ > Ca2+ > Mg2+ > K+ and HCO3 − > SO4 2− > Cl− > NO3 −. Partial pressure of CO2 concentrations in river and creeks ranged from 1.1 to 13.4 times that of atmospheric pressure, representing a source of CO2 to the atmosphere. The carbon isotope value of dissolved inorganic carbon (δ13CDIC) ranged from−9.8 to−1.4‰ in river, while in the creeks, it ranged from−26.1 to−4.7‰, refecting the degradation of organic matter and exchange with the atmosphere. The intensity of bicarbonate weathering for the Oplotnica River at its gauging station was 10.4 mmol/(l⋅km2 ⋅s), characteristic of silicate watersheds. The isotopic composition of carbon (δ13C) and nitrogen (δ15N) in river sediments refects values typical of soil and temperate (C3) plants. This study is signifcant on both local and global levels, as it addresses the contribution of weathering rates and the release of CO2 to the atmosphere from small silicate watersheds
High-Intensity Fast-Response Electric Radiant Panel (HIFREP) to impose fire equivalent heat fluxes on building elements with enhanced thermal boundary conditions accuracy
No full textBench-scale fire testing has gained popularity as a highly controllable and cost-effective solution, overcoming many of the shortcomings of traditional large-scale fire resistance tests. Whereas gas-fired radiant panels have demonstrated significant success in this area, the present study introduces a novel High-Intensity Fast-Response Electric radiant Panel (HIFREP). Utilizing electrically operated radiation emitters, it provides more precise and quasi-instantaneous control over the thermal boundary conditions. HIFREP delivers high and stable heat fluxes up to 105 kW/m2 , and, due to the low thermal inertia of the emitters, can rapidly adjust its output to changes in the input. In this regard, the time constant of the emitters has been found to be less than 1 s, both during heating and cooling. It eliminates gas combustion and hence avoids the need for extraction hoods when testing the fire performance of non-combustible materials, making it suitable for traditional structural testing laboratories. The presented High-Intensity Fast-Response Electric radiant Panel also provides a reliable tool for the validation of FEM simulation results by accurately replicating the thermal boundary conditions in structural fire engineering analyses
Moving through Cartesian products, coronas and joins in general position
Full text linkThe general position problem asks for large sets of vertices such that no three vertices of the set lie on a common shortest path. Recently a dynamic version of this problem was defined, called the mobile general position problem, in which a collection of robots must visit all the vertices of the graph whilst remaining in general position. In this paper we investigate this problem in the context of Cartesian products, corona products and joins, giving upper and lower bounds for general graphs and exact values for families including grids, cylinders, Hamming graphs and prisms of trees
