이철민 교수

We have used microcalorimetry to measure the differential heats of adsorption of both a series of alkylamines and a series of substituted pyridines in H-ZSM-5 and H-Mordenite. With few exceptions, the differential heats are approximately constant to coverages close to the expected Brønsted site concentration. Both zeolites show good correlations between the average differential heats of adsorption and the gas-phase proton affinities of the basic adsorbates. Slopes of the correlation lines for th

Heated tobacco products (HTPs), a hybrid between conventional and electronic cigarettes, were first launched in South Korea in June 2017. Owing to advertisements stating that HTPs are odorless, tar-free, and less harmful to health, the sales of HTPs have grown quickly enough to account for about 10% of the total tobacco market in a year. HTP use by young, highly educated, and high-income groups had a significant impact on both the overall tobacco market over the past 3 years and the smoking and

E-cigarettes, heat-not-burn (HNB) tobacco, and other new types of tobacco products are emerging in Korea. These products are particularly popular among smokers who are looking for less harmful means of tobacco consumption, and are highly relevant for existing tobacco control policies. E-cigarettes, which are electronic devices designed to allow the user to inhale nicotine as a vapor, are controversial in terms of their safety and effects on smoking cessation, as a variety of harmful substances h

Since the advent of heated tobacco products in June 2017 in South Korea, the sale of heated tobacco products accounted for 10.5% of total tobacco sales in 2019. However, the decreasing trend in total tobacco sales is gradually weakening and the number of visitors using stop smoking services has also dropped. This study examines the association between the use of new tobacco products and related products and cessation behaviors. A cross-sectional study using a self-administered questionnaire was

Background: Although there has been a sharp increase in the use of heated tobacco products (HTPs) in Korea, its accuracy has not been verified. Methods: In total, 121 participants who used any type of tobacco [conventional cigarette (CC), electronic cigarettes (EC), and/or HTP] and completed an online survey in June 2019 were recruited. They were interviewed and classified into seven categories according to their combination. Results: Discordance between self-reported and interviewer-rated tobac

BACKGROUND: This study examined sociodemographic and tobacco-related factors of heated tobacco products (HTPs) use among adult ever smokers in South Korea where the sales of HTPs have been rapidly increasing since their launch in June 2017. METHODS: Before the launch of HTPs in Korea, participants comprised male ever smokers (234 current smokers and 37 quitters) who participated in the Korea National Health and Nutrition Examination Survey from 2015 to 2017 through one-to-one interview survey an

BACKGROUND: The association between abdominal visceral adipose tissue and the risk of incident chronic kidney disease according to body mass index in the Asian population, remains unclear. We evaluated the impact of abdominal adiposity stratified by body mass index on the risk of incident chronic kidney disease. METHODS: A cohort study included 11,050 adult participants who underwent health check-ups and re-evaluated the follow-up medical examination at a single university-affiliated healthcare

This document provides a description of country-level laws that regulate electronic cigarettes and heated tobacco products. The mechanisms used to regulate e-cigarettes were classified as either new/amended laws or existing laws. The policy domains identified include restrictions or prohibitions related to the product (sale, manufacturing, importation, distribution, use, product design including e-liquid ingredients, advertising/ promotion/ sponsorship, and trademarks) and regulatory requirement

연구배경 흡연은 각종 악성 종양의 원인이며 심혈관 질환의 주요 위험요인으로 잘 알려져 있고 , 금연 상담과 금연보조제를 통한 금연 치료의 효과가 입증되어있다 . 남성 성인의 흡연율은 2005년도 50.3%로 여전히 높은 상태이며 , 국가에서는 보건소 금연 시범사업을 2004년에 10개 지역을 대상으로 실시하였다 . 이 연구는 금연 클리닉을 방문한 남성들에서의 단기 및 장기 금연성공에 따른 요인을 분석하여 향후 보건소 및 일반 금연 클리닉에서 금연 성공률을 높일 수 있는 자료를 제시하고자 한다 . 방 법 2004년 10월부터 3개월 간 등록한 721명 중 여성과 의료급여 대상자를 제외한 657명의 인구사회학적 요인과 흡연 행태를 조사하였으며 초기 6주간은 대면 상담 , 니코틴 대체요법, bupropion을 제공하고, 서비스 만족도를 조사하였다 . 이후 6개월 까지 전화, 문자 메시지, 이메일을 통한 금연 유지 프로그램을 제공하였다 . 금연 시작 4주, 6개월 째 금연 성공 여부를 파악

BACKGROUND: Smoking cessation has been associated with reduced lung cancer mortality. This study aimed to synthesize current evidence on the impact of quitting smoking at or around the time of diagnosis of lung cancer on survival, considering factors such as histological subtype, cancer stage, and cessation intervention. METHODS: A systematic search was conducted in the Ovid-MEDLINE, Ovid-EMBASE, Cochrane Central Register of Controlled Trials, and KoreaMed databases up to September 2024. Randomi