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The authors investigated sociodemographic predictors of the mental health status of college students (N = 308) in Guam. Results indicated prevalence rates of 17.8%, 40.2%, and 25.6% for moderate or more severe levels of depression, anxiety, and stress, respectively. Psychological distress was found to be predicted by gender, ethnicity, living arrangement, and academic level. Comparisons with college students in the U.S. mainland and Hong Kong were also examined. Implications for counseling services and strategies are discussed.

Two novel artificial tweezer receptors 1,3-phenylenedi(carbonylhydrazone) derivatives with a symmetrical structure have been synthesized. Receptor 3a [1,3-di(salicylidenehydrazinocarbonyl)benzene] for anions (F−, Cl−, Br−, I−, AcO−, HSO4−, H2PO4−, ClO4−) was investigated by UV-Vis spectroscopy in DMSO and even 85% DMSO-15% H2O binary solutions, respectively. Remarkable color changes from colorless to yellow were observed by the naked-eye upon addition of AcO−, F− and H2PO4− to the solution of receptor 3a. The 1H NMR signals indicated that the receptor 3a underwent deprotonation after the addition of an excess of fluoride anion. In particular, the anion recognition was successfully applied to CH3COONa in 15% H2O-85% DMSO. These findings were expected to be of significance for designing and developing novel color-based anion sensors operated in aqueous media.

Background Psychological morbidity is associated with frequent asthma exacerbations, higher health care utilization, as well as near-fatal and fatal asthma. The prevalence of psychological comorbidities in patients with severe asthma is not well-studied. The aim of our study was to evaluate the prevalence of anxiety, depression and hyperventilation, and correlate these symptoms with asthma control, exacerbation frequency and lung function in severe asthmatics.