골재의 특성이 콘크리트의 성질 및 배합에 미치는 영향2

조병근,Jo, Byeong-Geun 한국레미콘공업협회 1986 레미콘 Vol.12 No.-

고효율 특성을 갖는 IMT-2000용 전력 증폭기 설계에 관한 연구

조병근(Byoung Keon Cho),이상원(Sang Won Lee),홍신남(Sin Nam Hong) 대한전자공학회 2000 대한전자공학회 학술대회 Vol.2000 No.11

개인 트레이를 이용한 불소도포 효과에 관한 실험적 연구

조병근 ( Byeng Ken Cho ),서은주 ( Eun Ju Seo ) 한국치위생학회 2001 한국치위생학회지 Vol.1 No.2

Oral Manifestation and the Treatment of Self-Injurious Behaviors Associated with a Preterm Infant: A Case Report

심수현,조병근,조자원 대한예방치과학회 2015 International Journal of Clinical Preventive Denti Vol.11 No.1

Behavioral problems could be easily observed in patients with various mental disorders. Self-injurious behavior (SIB) can be defined as deliberated harm to one’s own body without conscious suicidal intent. It usually occurs as head banging or hitting, body hitting, skin cutting, or finger biting. Also it frequently involves oral tissue’s damage in pediatric patients, such as lip, cheek and tongue biting. Various articles have described prostheses used to prevent SIB-related injuries to the oral tissues of patients who have developmental or medical problems, such as psychological problems, congenital syndromes or mental retardation. But reports of oral SIB in individuals unaffected by the above conditions are scarce. The case presented in this report discusses oral SIB in a premature baby. We found an optimal way that would prevent SIB-related injuries and also protect the causative teeth. These days, dentists should be able to manage those patients with several treatment modalities, furthermore, to prevent SIB according to the causative disorders.

Changes in Oral Malodor According to Menstrual Cycle for Women

오진희,조병근,박우령,조자원 대한예방치과학회 2014 International Journal of Clinical Preventive Denti Vol.10 No.2

Objective: The objective of this study is to investigate intraoral factors which take a severe part, general illness and smoking to exam the change of halitosis within the woman's menstural cycle. Methods: We examined the halitosis changes per menstruation cycle using the sensory evaluation and mechanical halitosis measurement. Results: According to the sensory evaluation, there were no significant changes per phase; menstruation, follicular, ovulation and luteal (p>0.05). According to the BB Checker (Tokuyama Soda Co. Ltd., Tokyo, Japan), there were no significant changes in the BB values per phase when it comes to the intra-oral gas, exhaled gas and nasal gas (p>0.05). According to the Oralchroma measurement, the mean of hydrogen sulfide was 1.46±2.25 ng/10 ml at the menstruation phase, 1.57±1.62 ng/10 ml at the follicular phase, 0.58±0.70 ng/10 ml at the ovulation phase and 1.25±2.57 ng/10 ml at the luteal phase, getting slightly lower, yet no statistical significance was recognized (p>0.05). According to the Oralchroma measurement, there was no significant change per phase in terms of the measured methyl mercaptan and dimethyl sulfide values (p>0.05). When the halitosis changes according to the menstruation cycle were checked, there were no significant periodic changes, yet H2S, the volatile sulfur compound, dropped a little during the ovulation phase. Conclusion: It is believed that the menstruation cycle may impact the halitosis changes as variables like systematic diseases and intra-oral factors are excluded; However, it may not have a great impact on the severity of halitosis.

미래 시간관이 소비 심리에 미치는 영향: 한국과 미국의 MZ 세대의 비교를 중심으로 한 탐색적 연구

김병규,조병근,정준우 연세대학교 경영연구소 2022 연세경영연구 Vol.59 No.1

동일한 나이의 사람이더라도 어떤 사람들은 자기 삶에 남은 시간이 많다고 인식하고 어떤사람들은 그렇지 않다고 인식한다. 이처럼 사람들이 자신의 미래 시간과 관련하여 가지는인식의 차이를 미래 시간관(future time perspective)이라고 부른다. 미래 시간관은 사람들의동기와 행동, 정서적 경험에 큰 영향을 미친다. 확장적 시간관(자기 삶에 많은 시간이 남아있다는 인식)을 가진 사람들은 새로운 경험을 하거나 새로운 지식을 얻는 것처럼 자신의미래를 준비하는데 도움이 되는 목표들을 중요하게 여긴다. 반면 제한적 시간관(자기 삶에남은 시간이 얼마 없다는 인식)을 가진 사람들은 정서적 안녕감이나 의미있는 정서적 경험을더 중요하게 여긴다. 미래 시간관이 가진 이러한 효과는 소비자의 나이를 변인으로 사용하는연구에 중요한 시사점이 있을 것으로 기대된다. 하지만 미래 시간관에 대한 연구는 주로심리학에서 행해지고 있고 소비자학이나 마케팅 분야에서는 관련 연구가 미미한 편이다. 이에 본 연구는 미래 시간관이 소비자의 행동에 어떤 영향을 줄 수 있는지 탐색적으로알아보고자 한다. 특히 미래 시간관과 관련이 있을 것이라고 생각되는 소비 심리로 결정의우유부단함과 지출 고통을 선정하여, 미래 시간관이 앞선 요인들에 미치는 영향을 한국과 미국의 MZ 세대를 중심으로 비교 분석하였다. 한국과 미국 소비자 1,200명을 대상으로진행된 설문 조사의 응답을 분석한 결과, 한국의 MZ 세대의 미래 시간관이 미국의 MZ 세대보다 더 제한적 시간관에 가까움이 확인되었고, 미래 시간관에서의 이러한 차이가결정의 우유부단함과 관련되는 것으로 나타났다. 미래 시간관과 지출 고통 사이의 관련성은확인되지 않았다. 본 연구의 결과는 생물학적 나이와 구분되는 미래 시간관 구성개념이가지는 의의를 확인하고, 한국 MZ 세대의 특성을 미래 시간관을 기반으로 이해하는데큰 도움이 될 것으로 기대한다. Some people think they have much time left in their lifespan while others think they have little time left in their lifespan. Such a difference in perception of the remaining time in lifespan is called Future Time Perspective (FTP). Those who think their future is expansive pursue goals that help them to prepare for their future such as attaining new knowledge or experiences. Those who think their future is limited pursue goals that can be realized immediately such as maintaining emotional well-being or seeking meaningful emotional experiences. Because FTP exerts broad influences on motivation and behavior as such, it has been considered an important research variable in psychology literature. In consumer behavior literature, however, research on FTP is still very scant. Hence, in the current research, we investigate the possibility that FTP can be an important research variable for consumer behavior research. In particular, we focus on two consumer behaviors expected to be related to FTP (i.e., indecisiveness, and spending orientation), and compare Millennials/Generation Z in Korea and those in the U.S. in these behaviors. A large-scale survey among 1200 Korean and U.S. participants revealed that FTP of Millennials/Generation Z in Korea was more limited than those in the U.S., and the difference in FTP was associated with various consumer behaviors. We discuss the theoretical and practical implications of our findings.

Relationship Between Chronic Periodontitis and Lower Urinary Tract Symptoms/Benign Prostatic Hyperplasia

현하나,박연원,권영철,조병근,이준호 대한배뇨장애요실금학회 2021 International Neurourology Journal Vol.25 No.1

Purpose: We investigated the relationship between lower urinary tract symptoms (LUTS)/benign prostatic hyperplasia (BPH) and chronic periodontitis (CP). Methods: A total of 103 middle-aged men who had received a health checkup were included. All participant data were prospectively collected. CP was defined as a 30% increase in the number of probed sites with a clinical attachment level of ≥4 mm among all probed sites. LUTS/BPH were assessed using transrectal ultrasonography, the International Prostate Symptom Score (IPSS), uroflowmetry, and postvoiding residual urine volume. Results: The median age, IPSS, prostate volume, and maximal flow rate were 55.0 years, 9.0, 29.0 mL, and 20.0 mL/sec, respectively. In addition, the prevalence of CP was 27.2%. The IPSS total, IPSS voiding, IPSS storage, and quality of life (QoL) scores were significantly higher in patients with CP (median [interquartile range, IQR]–IPSS total: 8.0 [5.0–13.5] vs. 12.0 [7.5–20.5], P=0.004; IPSS voiding: 5.0 [2.0–9.0] vs. 8.5 [4.0–15.0], P=0.002; IPSS storage: 3.0 [2.0–5.0] vs. 4.0 [3.0–6.0], P=0.021; QoL: 2.0 [1.0–3.0] vs. 3.0 [2.0–4.0], P=0.015). Additionally, the average flow rate was significantly lower in patients with CP (median [IQR] (mL/sec): 9.0 [8.0–13.0] vs. 8.0 [6.0–11.0], P=0.047). After adjustment for age, testosterone level, prostate volume, glucose level, cholesterol level, and waist circumference, the IPSS total and voiding scores were significantly and positively related to CP (IPSS total: odds ratio [OR], 1.141; 95% confidence interval [CI], 1.045–1.245; P=0.003; IPSS voiding: OR, 1.243; 95% CI, 1.092–1.415; P=0.001). Conclusions: Our data suggest that LUTS/BPH is significantly related to CP.