Factors Related to the Weight Control Practices of Korean Adults.

Background: Maintenance of proper weight can help protect against chronic diseases. This study investigated the weight control practices of Korean adults and associated factors.

Methods: Secondary data from a nationwide cross-sectional survey of the fifth Korea National Health and Nutrition Examination Survey from 2016 to 2018 were analyzed.

Mechano-Chemical Synthesis, Structural Features and Optical Gap of Hybrid CHNHCdBr Perovskite.

Hybrid methyl-ammonium (MA:CHNH) lead halide MAPbX (X = halogen) perovskites exhibit an attractive optoelectronic performance that can be applied to the next generation of solar cells. To extend the field of interest of these hybrid materials, we describe the synthesis by a solvent-free ball-milling procedure, yielding a well crystallized, pure and moisture stable specimen of the Cd tribromide counterpart, MACdBr, which contains chains of face-sharing CdBr octahedra in a framework defined in the 2 (No 36) space group. The details of the structural arrangement at 295 K have been investigated by high angular resolution synchrotron x-ray diffraction (SXRD), including the orientation of the organic MA units, which are roughly aligned along the c direction, given the acentric nature of the space group.

Crystal Structure Features of CsPbBr Perovskite Prepared by Mechanochemical Synthesis.

We present a mechanochemical procedure, with solvent-free, green-chemistry credentials, to grow all-inorganic CsPbBr perovskite. The crystal structure of this perovskite and its correlations with the physicochemical properties have been studied. Synchrotron X-ray diffraction (SXRD) and neutron powder diffraction (NPD) allowed us to follow the crystallographic behavior from 4 to 773 K.

Self-esteem, propensity for sensation seeking, and risk behaviour among adults with tattoos and piercings.

In recent years, increasing numbers of adults and adolescents have opted to undergo tattoo and piercing procedures. Studies among adolescents with tattoo and piercing have usually explored the relationship between one factor and the decision to have tattoos and/or piercings. The aim of this study was to determine relationships between body cosmetic procedures and selfesteem, propensity for sensation seeking, and risk behaviours among adults.