Photoexcited cobalt catalysed -selective alkyl Heck reaction.

Herein, we report an intramolecular -selective Heck reaction of iodomethylsilyl ethers of phenols and alkenols. The reaction leads to the formation of seven- and eight-membered siloxycycles in excellent yields, which could be further converted into the corresponding allylic alcohols upon oxidation. Thus, this method could be used for the selective ()-hydroxymethylation of -hydroxystyrenes and alkenols.

Determinants of health-seeking behaviors among middle-aged women in Vietnam's rural-urban transition setting.

Introduction: The purpose of this study is to identify the health status and healthcare utilization factors associated with middle-aged women in the rapid urbanization context of Vietnam.

Methods: A cross-sectional study with a systematic random sampling technique was conducted in Hung Yen city. A systematic random sampling technique was used to select a sample size of 362 middle-aged women.

Physical activity and social support are associated with quality of life in middle-aged women.

Purposes: This cross-sectional study assessed the quality of life and related factors of Vietnamese women during perimenopause in terms of vasomotor, psychosocial, physical, and sexual aspects.

Materials And Methods: A cross-sectional study on 400 middle-aged women was conducted in Hung Yen, a delta province in Vietnam. Data about socioeconomic characteristics, daily activity patterns, quality of life in terms of vasomotor, psychosocial, physical, and sexual aspects, and level of social support were collected.