Imminent risk of the first and second recurrent osteoporotic fractures in South Korea.

Background: A history of fractures increases the likelihood of experiencing subsequent and secondary fractures. To prevent further fractures, global guidelines recommend aggressive proactive treatment with medication for patients at an imminent risk of osteoporotic fracture (OF), which is defined as a high likelihood of experiencing subsequent fractures in the near future. However, there is a lack of research focusing on patients with imminent risk of OFs in South Korea.

Ultrahigh Electrical Conductivity in p-Type CsPbIBr Perovskite Thin Films by Modulation Doping.

The widespread adoption of halide perovskites for application in thermoelectric devices, DC power generators, and lasers is hindered by their low charge carrier concentration. In particular, increasing their charge carrier concentration is considered the main challenge to serve as a promising room-temperature thermoelectric material. Efforts have been devoted to enhancing the charge carrier concentration by doping and composition engineering.

Microplastics in gastrointestinal tracts of gentoo penguin (Pygoscelis papua) chicks on King George Island, Antarctica.

Microplastics (< 5 mm) have been found in marine ecosystems worldwide, even in Antarctic ecosystems. In this study, the stomach and upper intestines of 14 dead gentoo penguin (Pygoscelis papua) chicks were collected and screened for microplastics on King George Island, a gateway to Antarctic research and tourism. A total of 378 microplastics were identified by Fourier-transform infrared spectroscopy, with 27.

Estimation of the National Burden of Disease and Vulnerable Population Associated with Natural Disasters in Korea: Heavy Precipitation and Typhoon.

Background: Despite its growing significance, studies on the burden of disease associated with natural disasters from the perspective of public health were few. This study aimed at estimating the national burden of disease associated with typhoons and torrential rains in Korea.

Methods: During the period of 2002-2012, 11 typhoons and five torrential rains were selected.

Current and Projected Burden of Disease From High Ambient Temperature in Korea.

Background: The objective of the present study was to estimate the current and projected burden of disease from high ambient temperature using population-based data sources of nationwide mortality and morbidity in Korea.

Methods: Disability-adjusted life years (DALY) were estimated using noninjury-related deaths, and cerebrovascular and cardiovascular diseases from recently released nationwide health and mortality databases. Years of life lost and years lost due to disability were measured based on the point prevalence and number of deaths during the study period.

The effect of balance taping for prevention of menstrual pain in female middle school students.

[Purpose] The age at menarche in Korean women has been declining sharply. However, for the students who are just beginning to menstruate, taking pain medication might become a long-term habit continuing until adulthood. Therefore, this study investigated whether balance taping would be more helpful than medication in relieving the pain.

Multifactorial evaluation of implant failure: a 19-year retrospective study.

Purpose: Dental implants generally provide good results as replacements for missing teeth, but a few patients experience implant failure. The aim of this retrospective study was to analyze the characteristics and causes of implant failures in hopes of reducing future failures.

Materials And Methods: Patients who received one or more implants at the Dental Hospital of Yonsei University College of Dentistry between February 1991 and May 2009 were included in this study.

Effect of body mass index and waist circumference on prostate specific antigen and prostate volume in a generally healthy Korean population.

Purpose: We examined the influences of age, body mass index and waist circumference on prostate specific antigen before and after adjusting for prostate volume. We also examined associations among age, body mass index, waist circumference and prostate volume.

Materials And Methods: We analyzed 38,380 Korean men 30 to 79 years old who received regular checkups at our health examination center.