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Due to the fact that light propagates far away in the atmosphere, the protection of VIDAs can be obtained only if a strong anti-light pollution action is enforced also in the surrounding areas, at least 100 km from the borders of the VIDAs.Resource utilization of wastes through effective separation is a major challenge in the field of water and wastewater treatment. Photocatalytic degradation is a powerful water treatment technology but has no selectivity in degradation of various coexisting contaminants due to its strong oxidation. In this work, a complex film composed of CdS and carboxylmethyl starch (CdS/CMS) was designed and fabricated using in situ formation method. The morphology, composition, and optical property of this film were investigated in detail by various characterization methods. CdS was well distributed in the starch matrix, and the absorption wavelength of this film was still located in the visible light region. This starch-based complex film was used to remove various organic dyes [methylene blue (MB), crystal violet (CV), and rhodamine B (RhB)] from aqueous solutions by two consecutive processes of adsorption enrichment and photocatalysis degradation. 0.1 g of CdS/CMS film can remove approximately 86.72% of MB and 81.03% of CV in 120 min. CdS/CMS still exhibited evidently selective photocatalysis degradation of MB and CV in MB/RhB and CV/RhB binary systems, respectively, and had nearly no effect on RhB. The cationic groups on MB and CV can effectively interact with negatively carboxyl groups of CMS via electrostatic interactions, causing their good affinities; but the anionic groups on RhB had an electrostatic repulsion to the starch matrix. The considerably different affinities of various dyes to CMS triggered strong adsorption preferences and great selective degradation effectiveness. The selectivity of CdS/CMS could not be influenced by pH and some coexisting inorganic anions. Furthermore, this complex film did not require regeneration and could be reused directly with low removal capacity loss. Therefore, a new and simple strategy was provided to realize the effective separation and recovery of target contaminants in water by photocatalytic degradation technology.Soil salinization is a major environmental hazard that limits agricultural production. Using sewage sludge and recycled wastewaters in amelioration of saline-sodic soils is one of the most effective ways to dispose waste. However, a very low initial permeability of soil in the freeze-thaw conditions can make improvement difficult. Therefore, column experiments at a soil depth of 15 cm have been conducted to determine the effects of the combination of four stabilized sewage sludge doses (0, 50, 100, 150 t ha-1), three freeze-thaw cycles (0, 5, 10 times) and two water types (FW freshwater, RWW recycled wastewater) on gypsum-treated saline-sodic soil properties. The effects of non-saline-sodic RWW on the soil properties were similar to the FW in total 22.5 cm leaching amount. Compared to gypsum alone and initial values, sewage sludge increased wet aggregate stability, organic matter, total N and exchangeable Ca + Mg while it decreased pH, exchangeable Na and CaCO3. Saturated hydraulic conductivity was not induced by sewage sludge although exchangeable sodium percentage and electrical conductivity were reduced by 44% and 63.6%, respectively. Negative effects of freeze-thaws on hydraulic conductivity and salinity and sodicity elimination were not observed, while pH and aggregate stability were negatively affected from ten freeze-thaws. Overall, it can be concluded that the improvement of hydraulic conductivity is attributed to the further improvement of soil structure from more strong wet aggregate stability via additional sewage sludge and leaching amounts.
Negative views of aging (NVOA), low self-efficacy beliefs, and poor goal planning skills represent risk factors that undermine adults' motivation to engage in physical activity (PA). Targeting these three risk factors may motivate adults to become physically active.
To assess the efficacy of Aging
, a 4-week educational program that explicitly targets NVOA, low self-efficacy beliefs, and poor goal planning skills compared to a 4-week health education program. The study also examines the role of NVOA, self-efficacy beliefs, and goal planning as the mechanisms underlying change in PA.
This randomized controlled trial (RCT) utilizes the experimental medicine approach to assess change in PA as a function of modifying three risk factors. Selleckchem RG7388 The RCT recruitment target includes 288 mostly sedentary adults ranging in age from 45 to 75 years.
Eligible middle-aged and older adults are recruited through community sources. Participants are randomized to either the Aging
or the control group. Participants in both groups are enrolled in the trial for 8 months total, with four assessment points Baseline (pre-test), Week 4 (immediate post-test), Week 8 (delayed post-test), and Month 6 (long-term follow-up). The intervention takes place over 4 consecutive weeks with 2-h sessions each week. PA engagement is the primary outcome variable. Positive changes in NVOA, self-efficacy beliefs, and goal planning are the intervention targets and hypothesized mediators of increases in PA.
By utilizing a multi-component approach and targeting a cluster of psychological mechanisms, the Aging
program implements the experimental medicine approach to health behavior change.
By utilizing a multi-component approach and targeting a cluster of psychological mechanisms, the AgingPLUS program implements the experimental medicine approach to health behavior change.The current proposed study aims to evaluate expressive writing as a novel intervention for reducing problematic drinking among college students. College students are at increased risk for alcohol misuse compared to other adults, and the development of efficacious intervention approaches is an urgent priority. The vast majority of individually focused brief interventions targeting college drinking have focused on personalized feedback approaches and recent innovations have largely been limited to refinements of this paradigm, which require large-scale assessment and intricate programming for implementation. The present research proposes expressive writing as a novel alternative, which has been used extensively in other domains but not as an alcohol intervention strategy. We propose a theoretically-based approach that incorporates expression of the self-conscious emotion of guilt and the written analogue of change talk as proposed mechanisms of intervention efficacy. We will also examine individual differences in guilt-proneness as a moderator of intervention efficacy.
Website: https://www.selleckchem.com/products/idasanutlin-rg-7388.html
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