• Bulletin of the Korean Chemical Society
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• 제32권7호
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• pp.2237-2242
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• 2011

Anomalous scaling behaviors such as significantly large growth exponent (${\beta}$) and small reciprocal of dynamic exponent (1/z) values for many molecular crystalline thin films have been reported. In this study, the variation of scaling exponent values and consequent growth behaviors of molecular thin films were more quantitatively analysed using a (1+1)-dimensional surface lateral diffusion model. From these simulations, influence of step edge barriers and grain boundaries of molecular thin films on the various scaling exponent values were elucidated. The simulation results for the scaling exponents were also well consistent with the experimental data for previously reported molecular thin film systems.

• 치위생과학회지
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• 제10권5호
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• pp.329-334
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• 2010

본 연구는 근로자의 스켈링 행태와 지식 및 구강건강신념과의 관련성을 알아보기 위하여 경북 일부지역의 근로자 500명을 대상으로 설문조사를 실시하여 미회수자와 부실한 응답자 21명을 제외한 479명 중 스켈링 경험이 있는 326명의 자료를 분석하여 다음과 같은 결론을 얻었다. 1. 스켈링 지식 평균은 6.44(10점 만점)이었고, 구강건강신념 평균은 2.72(5점 척도)이었다. 하부 영역 중 '유익성'이 3.24로 가장 높았고, '심각성'이 2.25로 가장 낮은 점수를 보였다. 2. 일반적인 특성에 따른 스켈링 지식 및 구강건강신념에서 성별은 '행동의 계기'에서 유의한 차이가 있었고(p<.05), 연령은 '심각성'과 '행동의 계기'에서 차이가 있었다(p<.05). 학력은 '심각성'에서 차이가 있었고(p<.01), 근무분야는 스켈링 지식과 '감수성' 및 '심각성'에서 차이를 보였으며(p<.05), 월수입은 스켈링 지식과 '유익성'에서 유의한 차이를 보였다(p<.01, .05). 3. 스켈링 행태와 지식 및 구강건강신념의 차이에서 정기적으로 스켈링을 하는 경우 스켈링 지식과 '유익성'이 유의하게 높았고(p<.001), 하지 않는 경우 '감수성', '심각성' 그리고 '장애성'에서 높았다(p<.05, .01, .001). 스켈링 주기는 짧을수록 스켈링 지식과 '유익성'이 유의하게 높았고(p<.001, .01), '장애성'은 주기가 길수록 높았다(p<.01). 스켈링 동기는 자발적인 경우 스켈링 지식이 높았고(p<.01), 권유에 의한 경우 '행동의 계기'가 높았다(p<.01) 4. 스켈링 행태와 지식 및 구강건강신념과의 상관관계는 정기적 스켈링과 스켈링 주기에서 스켈링 지식과 '유익성'은 역상관(p<.01), '심각성'과 '장애성'은 순상관(p<.05, .01)을 보였고, 스켈링 동기는 스켈링 지식과는 역상관(p<.01), '행동의 계기'와는 순상관(p<.01)을 보였다. 5. 스켈링 지식과 구강건강신념과의 상관관계는 '장애성'과는 역상관(p<.01), '유익성'과는 순상관(p<.01)을 보였다. 이상의 결과로 근로자의 치주건강을 위해서는 스켈링에 대한 중요성을 정책적으로 홍보, 관리하여 6개월 주기로 정기적 스켈링을 자발적으로 실천할 수 있는 방안이 필요하다.

• 한국치위생학회지
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• 제16권5호
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• pp.669-676
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• 2016

Objectives: The purpose of the study was to investigate the related factors of scaling experience of multi-cultural adolescents in Korea. Methods: The subjects were 698 multi-cultural adolescents from web-based survey of the 11th(2015) Korean Youth Risk Behavior. Multi-cultural adolescents are defined as the children of marriage migrant women. The study instruments included demographical characteristics of the subjects, oral health behaviors, daily tooth brushing times, health behaviors, and experience of smoking and alcohol consumption. Data were analyzed using PASW statistics 18.0. Results: The experience rate of scaling was 18.8%. Multiple logistic regression analysis revealed that experience of scaling were related with experiences of sealant and fruit consumption. Conclusions: It is very important to provide the continuing oral health prevention program for the adolescents and investigate the cost-benefit effectiveness of oral health care program.

• 한국치위생학회지
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• 제11권5호
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• pp.773-782
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• 2011

Objectives : The purpose of the study was to investigate self-reported oral health attitudes and behaviors among patients receiving scaling services and provide guidelines for developing preventive programs for dental disease. Methods : The survey was administered to a sample of 462 receiving voluntary scaling service in the practice lab in the department of dental hygiene at J health college. Results : 1. Of all participants, 261(56.5%) reported that they received scaling services in the past. 134 of the women (62.6%) and 127 of the men (51.2%) received scaling services 2. Analysis of the regular scaling attendance rates showed that only 16.2% of all participants received routine scaling. 13.7% of the male participants and 19.2% of the female participants received scaling on a regular basis. 3. Participants commonly reported "self-motivation" and "suggestion by others" (37.9% and 34.1%, respectively) as the main reasons for obtaining scaling services. 4. The main reasons for not obtaining scaling services were "I did not know about scaling" (39.3%), "I don't feel it is necessary" (27.4%) and "because I am scared" (20.9%). More men (42.1%) than women (35%) reported that they did not know about scaling. 5. Of the total participants, 41.6% reported that they were concerned about oral health at a moderate level, and 30.3% reported that they were concerned about oral health at a high level. 6. Of the participants who responded "very concerned about oral health" and "extremely concerned about oral health", the majority obtained scaling service (70.2% and 84.2%, respectively). Conclusions : The study suggested that researchers and national health authorities should develop routine scaling, preventive dental care, and oral health programs for oral health promotion and disease prevention.

• 한국융합학회논문지
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• 제11권5호
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• pp.51-59
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• 2020

본 연구는 국민건강영양조사 제7기에 참여한 우리나라 중장년층 대표표본에서 치석제거를 필요로 하는 치주건강상태와 구강 및 전신 건강행동의 관련성을 확인하는 것이다. 제7기 국민건강영양조사에 참여한 40-64세 중장년 5,120명을 대상으로 하였고, 다변량 로지스틱 회귀분석을 수행하였으며, 인구사회학적 특성과 구강 및 전신건강상태에 대해 보정하였다. 현재 흡연(OR=1.593), 치과방문안함(OR=1.578), 현재 음주(OR: 1.420), 구강검진 비수검(OR: 1.304), 구강관리용품 비사용(OR: 1.2942)의 치면세마 필요에 대한 OR이 유의하게 높았으며, 성별 하위그룹분석 결과 성별에 따라 유의한 요인이 달랐다. 연구결과 중장년층 치주건강의 유지, 증진에 효과적인 구강 및 전신 건강행동을 확인하였다.

• 한국치위생학회지
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• 제19권2호
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• pp.265-275
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• 2019

Objectives: The aim of this study was to investigate trends of oral health behaviors in Korean adolescents. Methods: From the 2005 to 2017 Korea Youth Risk Behavior web-based Survey (KYRBS) Secondary Data (study to 748,461). Independent variables were the year, gender, grade, and living area. Dependent variables were the rate of tooth-brushing after lunch, scaling, use of sealant, and oral health education within 1 year. Chi-squire tests were used to estimate the rate of oral health behaviors and trends. In addition, multiple logistic regression analysis was used to estimate the association between socio-economic characteristics and oral health behaviors. The analyses were conducted using IBM SPSS statistics 21 (version 21.0, IBM Corporation, New York, NY, USA). Results: The rate of tooth-brushing after lunch and use of sealant have significantly increased every year. Oral health behaviors were significantly associated with socio-economic characteristics. The rate of oral health education was higher among males than females, which was in contrast to other oral health behaviors. The scores for tooth-brushing after lunch, use of sealant, and scaling in females were 2.33 (95% CI; 2.27-2.40), 1.31 (95% CI; 1.29-1.33), and 1.20 (95% CI; 1.18-1.22), which were higher than those in males. The score for use of sealant in the highest household economy group was 1.13 (95% CI; 1.10-1.17), which was higher than the lowest economy group. Conclusions: We found positive trends of oral health behaviors in Korean adolescents.

• 한국치위생학회지
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• 제8권1호
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• pp.133-146
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• 2008

Purpose: This research aims to investigate into company workers' awareness of scaling and related factors and provide basic materials for setting up appropriate policies to improve the hygiene of the mouth of industrial workers and developing training programs for the worker's hygiene of their mouth, as part of researches to establish schemes for improving the workers's hygiene of their mouth. Method: Questionnaire was conducted by convenience sampling for 220 office workers belonging to H Group located in Seoul Metropolitan city over about 5 weeks between December 17, 2007 and January 20, 2008. The questionnaire for this study was constructed in consideration of general characteristics of the subjects, behaviors of the dental management. and scaling. The collected questionnaires were electronically processed using SPSS 12.0. Result: The followings are the findings of this research. First, in general, scaling is experienced by male unmarried worker in their 40s. whose monthly average income is 1.00-1.99 million won and have little interest in the hygiene of their mouth and, consequently. whose hygiene of the mouth is not good. Second, scaling is experienced once every six months by the worker in their 50s or older, who are college graduates and have much interest in the hygiene of their mouth and, consequently. whose hygiene of the mouth is good. Third. scaling is not periodically conducted because of high costs of it in terms of almost every parameter of general characteristics. Fourth, they have correct knowledge of scaling since they regard it as 'removing of plaque and tartar' in terms of every parameter of general characteristics. Fifth, the workers' sex (pE0.05), hygienic condition of the mouth (pE0.05) and knowledge of scaling (pE0.001) have a significant effect on their scaling experience. Conclusion: It is considered that dental health management should be continued by training of the importance of prevention through scaling as measure for dental health promotion of workers.

• Nuclear Engineering and Technology
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• 제54권9호
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• pp.3415-3421
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• 2022

This paper is aimed to find out the impact of the geometrical parameters, mainly the radius and the height of a cylinder, on the SGEMP response including the famous scaling law in the classical cylinder model using a homemade PIC code UNIPIC-3D. We computed the electric fields at the center and at the edge on the emission head face with different radii and heights under normal X-rays incidence. The results show that the electric field will increase with the radius but decrease with the height. We analyze the scaling law that links the electric field product and fluence product, and whereafter an irreconcilable contradiction raises when the radius is changeable, which limits the application range of the scaling law. Moreover, the field-height-radius relation is found and described by a combination of logarithmic and minus one-quarter numerical fitting law firstly. Particle and magnetic field distributions are used to explain all the behaviors of the fields reasonably. All the findings will assist the evaluation of SGEMP response in spacecraft protection.

• 보건의료산업학회지
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• 제11권1호
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• pp.171-180
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• 2017

Objectives : The objective of this study was to compare oral health behaviors and oral health indices between regular scaling group and irregular scaling group. Methods : This study was performed at M Dental Clinic in Busan on 352 dental patients treated between January 2014 and June 2015 using V6.0 software and medical interviews. The 352 patients were divided into 3 groups and oral health behavior (OHB) and oral health indices were compared. Results : The OHB scores significantly differed among Groups C and A. Group C had the lowest number of "Bad" scores for the Simplified Debris Index (S-DI), Simplified Calculus Index (S-CI), and Simplified Oral Hygiene Index (S-OHI). Groups B and A had the lowest number of "Excellent" scores. Group C had the lowest bleeding on probing (BOP), calculus rate (CR) and decayed teeth (DT). Furthermore, Group C had the highest number of missing teeth (MT) and filled teeth (FT). Conclusions : Patients who underwent regular scaling had the highest OHB and oral health index scores. This emphasizes the importance of regular scaling for prevention and early detection of oral disease.

• Bulletin of the Korean Chemical Society
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• 제34권12호
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• pp.3703-3708
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• 2013

The scaling relationship of the longest relaxation time of a single chain of semiflexible biological polyelectrolyte has been investigated by performing well-established coarse-grained Brownian dynamics simulations. Two kinds of longest relaxation times were estimated from time-sequences of chain trajectories, and their behaviors were interpreted by applying the scaling law for different molecular weights of polyelectrolyte and Debye lengths. The scaling exponents for longest stress relaxation and rotational relaxation are found in the ranges of 1.67-1.79 and 1.65-1.81, respectively, depending on the physicochemical interaction of electrostatic Debye screening. The scaling exponent increases with decreasing screening effect, which is a special feature of polyelectrolytes differing from neutral polymers. It revealed that the weak screening allows a polyelectrolyte chain to follow the behavior in good solvent due to the strong electrostatic repulsion between beads.