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This study aims to assess the motivational factors influencing the participation of older adults in various exercise interventions during depressive episodes and to identify which types of exercise are most effective in alleviating depressive symptoms in this population. Therefore, randomized controlled trials (RCTs) focusing on exercise interventions and their impact on depression in older adult patients, identified by the terms "exercise" AND "depression" AND "elderly" OR "geriatric", were selected from primary electronic databases to conduct this network meta-analysis (NMA). The primary outcome was the effect on depressive symptoms, while the secondary outcome was the comparison of dropout rates between the intervention groups and the usual care control groups, as a measure of sustained motivation and engagement. Standardized mean difference (SMD) values and the corresponding 95% confidence intervals (CIs) were computed for effect evaluation. This study protocol has been registered in IPLASY (INPLASY 202460035). The results of 31 RCTs with 3238 participants indicated that qigong (SMD −1.17, −2.28 to −0.06), Otago Exercise (SMD −1.15, −2.29 to −0.01), and yoga (SMD −0.88, −1.55 to −0.21) significantly alleviate depressive symptoms in older adults. Walking (SMD −0.82, −1.34 to −0.31) and strength training (SMD −0.67, −1.05 to −0.30) also showed significant effects. Aerobic, physical training, and tai chi had moderate effects, while multisport showed a weaker impact with no significant improvement. In summary, our research findings demonstrate that exercise can effectively alleviate depressive symptoms in older adults, with low dropout rates likely due to interconnected physiological, psychological, and social mechanisms. This is crucial for enhancing treatment strategies for older adults' depression. [ABSTRACT FROM AUTHOR]

Rural residents' enthusiasm and persistence for participation in tourism employment contribute to the sustainable development of destination tourism. Taking Majiagou village in Hebei Province as a case study, this research focused on changes to residents' participation behavior in tourism employment, using unstructured interviews and observations. Bounded rational decision theory was applied to delineate the decision-making process of tourism employment participation. The results indicated that rural residents' participation in tourism employment was subject to a dynamic process of change across three phases: trial participation, herd participation, and selective withdrawal. This evolution is specifically guided by an internal mechanism consisting of "tourism industry attributes—individual bounded rationality—individual employment decision-making." The study provides an effective analytical framework for characterizing the behavior of rural residents in a tourism community and offers managerial implications for the government to improve the effectiveness and sustainability of community participation. [ABSTRACT FROM AUTHOR]

A formal [3 + 2] reaction of 3-(2-oxo-2-arylethylidene)indolin-2-ones and amidines has been developed, regioselectively affording a series of new 3-(imidazol-4-yl)indolin-2-ones in good to excellent yields. The reaction was easily conducted in using Cs2CO3 as a base promoter under . Flexible structural modification, and broad functional group compatibility as well as mild reaction conditions make this strategy a useful and attractive process of library generation for drug discovery. [ABSTRACT FROM AUTHOR]

In this work, nano-CdS was successfully prepared. The nano-CdS was also modified with L-cysteine. Absorption and fluorescence spectra of CdS nanoparticles for different pH values, reaction times and different Cys/Cd2+/S ratios were investigated. Meanwhile a fluorescence enhancing effect was observed between trace zinc ions and the functionalized L-Cys-CdS nanoparticles. The response is linearly proportional to the concentration of zinc ions from 1.0 to 15 micromol x L(-1). The functionalized nanoparticles are hopeful of use as fluorescence probes in detecting trace elements in biological samples.