• 대한물리치료과학회지
• /
• 제2권3호
• /
• pp.653-666
• /
• 1995

본 연구는 고둥학생들의 요통경험을과 관련된 위험요인을 분석하기위해, 1993년 6월 28일부터 7월 10일까지 2주일 동안 경상북도 안동시 소재 4개의 남여 고등학교(인문계 2, 실업계 2) 3학년에 재학중인 총 816명 중 설문지가 회수되지 않거나 내용이 부실한 38명을 제외한 총 778명(95.3 %)명을 대상으로 분석하였는데, 그 결과는 다음과 같다. 1. 분석대상자 총 778명 중 211명이 요통을 경험하였다고 하여 27.1 %의 요통경험을을 보였다. 2. 요통경험자들의 요통원인은 잘모르겠다는 원인불명이 47.4%로 가장 높았다. 3. 요통유무와 일반적인 특성과의 관계 중학교구분에서 인문계 고둥학생들의 성적 57.8%의 요통경험율이 실업계 학생들의 42.7 % 보다 조금 높게 나타났고(P = 0.001), 연령은 18세 이상의 그룹이 60.2 %로 17세 이하 그룹의 39.8 % 보다 통계적으로 높게 나타났다(P = 0.031). 4. 요통유무와 일상생활동작과의 관계에서 가방드는 방법 중 한쪽 어깨로 가방을 매는 학생들의 55.8 %는 양쪽어깨를 이용한 경우의 42.8 % 보다 통계적으로 유의하게 높았다(P = 0.001). 5. 요통유무와 취침방 형태와의 관계에서 온돌방을 사용한 요통경험 학생들이 80.1 %로 침대방 사용 학생들의 11.8% 보다 훨씬 높게 나타났다(P = 0.012). 6. 요통과 스트레스와의 관계에서 요통학생들의 경우 보통 정도로 스트레스를 느낀다가 40.7 %로 가장 높았고, 심하게 느낀다가 24.5 %, 약간 느낀다가 15.6 %, 매우 심하게 느낀다가 13.7 %, 전혀 느끼지 않는다가 5.2 % 등의 순으로 나타나(P = 0.027), 보통이상으로 스트레스를 느끼는 경우가 79.0 %로 스트레스가 높았다. 7. 요통유무에 영향을 미치는 관련변수를 알아보기 위한 로지스틱 회귀분석 결과, 가장 영향을 미치는 변수는 학교구분으로 인문계학생 일수록 요통에 영향을 더 많이 주었고(P = 0.0019), 그 다음은 스트레스 경험정도인데 스트레스를 많이 경험할 수록 요동에 영향을 더 주었다(P = 0.0034). 그리고 연령에서 연령이 증가할 수록 요통에 영향을 더 많이 미치는 변수로 나타났다(P = 0.0183). 즉, 학교구분, 스트레스, 연령 둥의 순서별로 요통유무에 영향을 주었음이 통계적 차이에 의해서 나타났다. 본 연구결과에서 일부지역 고둥학생들의 요통경험율과 유의하게 관련성이 있었던 독립변수들이 요통경험에 직접적인 인과관계 였다고는 단정할 수 없으나 요통경험에 큰 영향을 미치고 있음을 알 수 있다. 따라서 이들 변수를 중심으로 향후 전향적인 연구(prospective study)가 요구된다.

• 한국산학기술학회논문지
• /
• 제13권9호
• /
• pp.4073-4081
• /
• 2012

우리나라 성인의 관절염 유병률 수준을 제시하고, 높은 유병율을 보이는 하위집단을 파악하고자 국민건강영양조사 제4기(2007년-2009년) 자료를 이용하여 고유병률 관련 요인을 분석하였다. 통계분석은 국민건강영양조사의 복합표본설계를 반영한 가중치를 적용하기 위해 SAS 9.2 survey procedure로 실시하였다. 19세 이상 성인 18,406명을 대상으로 '연간 본인 인지 관절염'(이하 관절염) 유병률과 사회인구학적 또는 건강행태 요인별 유병교차비를 분석한 결과는 다음과 같다. 관절염 조유병률은 11.7%였고, 이것의 세부 분류인 골관절염은 10.2%, 류마티스관절염은 1.7%의 유병률을 보였다. 19-44세 연령층에서 2.4%, 45-64세 층이 16.4%, 65세 이상에서 38.3%로 연령층 증가에 따라 급격히 증가하였다. 사회인구학적 측면에서 연령보정 관절염 유병률이 상대적으로 높은 집단은 여성, 비아파트 거주자, 이혼 사별 별거 상태인 경우, 낮은 교육년수, 특정직업군(농림어업 종사자, 단순노무종사자, 무직), 낮은 가구총소득, 의료보호 대상자 집단 등이었다. 건강행태 측면에서 연령보정 관절염 유병률이 상대적으로 높은 집단은 체질량지수(BMI)가 높은 집단이었고, 연령, 성, BMI를 보정한 경우 매일 음주군의 유병률이 상대적으로 높았다. 본 연구에서 파악된 고유병률 집단들은 지역사회 관절염 관리사업의 목표집단으로 고려되어야 할 것이다.

• 반도체디스플레이기술학회지
• /
• 제21권1호
• /
• pp.148-154
• /
• 2022

As the 4th industrial age approaches, the demand for semiconductors is increasing enough to be used in all electronic devices. At the same time, semiconductor technology is also developing day by day, leading to ultraprecision and low power consumption. Semiconductors that keep getting smaller generate heat because the energy density increases, and the generated heat changes the shape of the semiconductor package, so it is important to manage. The temperature change is not only self-heating of the semiconductor package, but also heat generated by external damage. If the package is deformed, it is necessary to manage it because functional problems and performance degradation such as damage occur. The package burn in test in the post-process of semiconductor production is a process that tests the durability and function of the package in a high-temperature environment, and heat dissipation performance can be evaluated. In this paper, we intend to review a new material formulation that can improve the performance of the adapter, which is one of the parts of the test socket used in the burn-in test. It was confirmed what characteristics the basic base showed when polyamide, a high-molecular material, and alumina, which had high thermal conductivity, were mixed for each magnification. In this study, functional evaluation was also carried out by injecting an adapter, a part of the test socket, at the same time as the specimen was manufactured. Verification of stiffness such as tensile strength and flexural strength by mixing ratio, performance evaluation such as thermal conductivity, and manufacturing of a dummy device also confirmed warpage. As a result, it was confirmed that the thermal stability was excellent. Through this study, it is thought that it can be used as basic data for the development of materials for burn-in sockets in the future.

• 한국산학기술학회논문지
• /
• 제20권7호
• /
• pp.85-92
• /
• 2019

본 연구는 간호대학생의 임상실습 중 핵심기본간호술의 수행자신감에 영향을 미치는 요인을 파악하기 위해 시행된 서술적 조사연구이다. 연구대상은 경상북도 G시에 소재한 4년제 간호학과에 재학중인 3, 4학년 학생 190명으로 일반적 특성 및 임상실습 특성, 핵심기본간호술 경험 정도와 수행자신감을 설문조사하였다. 자료분석은 기술통계, t-test, 분산분석 및 다중회귀분석을 실시하였다. 연구결과, 수행경험한 핵심기본간호술의 수는 5개 이하가 51.1%였으며, 관찰경험한 핵심기본간호술의 수는 11개 이상 78.4%였다. 일반적 특성, 임상실습 만족도와 핵심기본간호술 경험 정도에 따른 수행자신감은 남자, 연령과 학년이 증가할수록, 전공만족도와 임상실습 만족도가 높아질수록 높아졌으며, 특히 수행경험한 핵심기본간호술의 수가 증가할수록 높아졌다(p<0.001). 하지만 수행자신감은 관찰경험한 핵심기본간호술의 수에 따른 차이는 없었다(p=0.463). 간호대학생의 수행자신감에 영향을 미치는 요인으로는 연령, 학년, 임상실습 만족도와 수행경험한 핵심기본간호술의 수로 나타났다. 따라서 간호교육과정에서 간호대학생의 임상실습 중 다양한 핵심기본간호술을 직접적으로 경험할 수 있는 기회를 늘리는 것이 중요하고, 보안책으로 시뮬레이션 교육을 적극적으로 활용하는 방안이 모색되어야 할 것이다.

• 한국ITS학회 논문지
• /
• 제19권4호
• /
• pp.45-54
• /
• 2020

본 연구는 고령자에 대한 보행속도 및 인지-반응을 포함한 보행특성에 관한 기초자료를 조사하였으며, 이를 토대로 보행 신호시간을 산정하였다. 현장조사는 스탑워치를 이용하여 보행자의 실제 횡단시간을 조사하였고, 구두조사로 연령을 조사하여 일반인과 고령자그룹으로 구분하였다. 자료를 분석한 결과 일반인의 평균보행속도는 1.29m/s, 노인은 1.13m/s로 일반지역의 기준인 1.0m/s 보다 높게 나타났다. 또한 하위 15th percentile속도를 살펴보면 일반인은 1.01m/s, 노인은 0.85m/s로 분석되어 노인의 경우 일반지역 기준보다 낮은 보행속도를 가지며 보호구역 기준인 0.8m/s 보다는 높은 속도가 나타났다. 하지만 지팡이나 휠체어를 사용하는 노인의 경우 하위 15th percentile속도가 0.73m/s로 나타나 현재 보호구역 기준보다 낮은 보행속도를 가진 것으로 분석되었다. 본 연구결과는 향후 노인의 보행환경을 개선하는데 적용할 수 있고, 장기적으로는 교통약자의 이동성 증진에 기여할 것으로 판단된다.

• 디지털산업정보학회논문지
• /
• 제14권1호
• /
• pp.103-120
• /
• 2018

Global conglomerates in the late 2010s are seeking changes from the existing method of financial growth into that of sustainable growth, as they are facing the age of 4th industrial revolution. In preparation for this change of the times and to stay competitive, small businesses are required to produce creative knowledge, and systematically share and store it by means of implementing voluntary and specific changes in their convictions and actions. This study aims to empirically examine how the ICT small businesses' organizational learning participants' self-leadership affect their job satisfaction through organization orientation and Leader-Member Exchange(LMX). The research sample consists of the first to third-year employees that have previously participated in the small businesses' organizational learning support project, and of learning leaders, group leaders, and group members from companies that have previously concluded the project. The results are as follows: First, the self-leadership at the ICT small businesses' organizational learning project has been shown to have a positive effect on job satisfaction. The same positive results are shown in learning orientation and LMX. Second, the learning orientation has been shown to have a positive effect on job satisfaction. Third, the LMX has been shown to have a positive effect on job satisfaction.

• 한국IT서비스학회지
• /
• 제20권1호
• /
• pp.117-130
• /
• 2021

The Korean society is transforming into the intelligence information society rapidly during the 4th industrial revolution. But middle aged and elderly people are hard to access and accept these changes. So, the purpose of this study is to examine the Intelligence information society factors affects life satisfaction among the elderly by moderating effect of on/offline social capital. This study analyzed data of 2,303 people between the ages over 50 from the 2018 Digital Divide Survey conducted by the National Information Society Agency (NIA) using SPSS26.0. The result showed that sex, age, education, household type, Intelligence information society perception, expectation, anxiety are significantly effected life satisfaction. Also on/offline social capital had moderating effect between intelligence information society and life satisfaction. Based on the results of this study proviedes a basis for developing a success model for elderly people who accepts the intelligence information society. Also, this study identifies the implications and future studies are suggested.

• International journal of advanced smart convergence
• /
• 제11권1호
• /
• pp.55-63
• /
• 2022

Although research on the leader's or speaker's voice has been continuously conducted, existing research has a single point of view. Sound analysis of voice characteristics has been studied from engineering perspectives, and leadership trait theory has been studied from a business perspective. Convergence studies on leader voice and member cognition are being attempted today. Convergence research on voice has a positive effect on refinement of voice analysis, diversification of voice use, and establishment of voice utilization strategy. This study explains the current flow of research on convergence between speaker's voice and listener's perception, and suggests a direction for the future development of voice fusion research. Furthermore, in connection with AI in the 4th industrial age, new attempts for voice research are sought. First, advances in AI focus on strategically generating the voices needed for individual situations. Second, the voice corrected in real time will support the leader and speaker to utilize the desired voice type. Third, voices through AI based on big data will affect the cognition, attitude and behavior of individual listeners who members, customers, and students in more diverse situations. The purpose and significance of this study is to suggest the way to research the leader's voice recognized by members, and to suggest a method that can be applied in various situations.

• 한국직업건강간호학회지
• /
• 제6권2호
• /
• pp.96-109
• /
• 1997

The purpose of this study was to identify the major factors affecting performance in health promoting behavior. The subjects for this study were 414 workers employed in one transportation manufacturing plant in Pusan and were obtained by a convenience sample. Data were collected from November 11th to December 21th, 1996 by structured questionnaires. Collected data were analyzed by SPSS PC. The results of this study are as follows. 1. The average score of performance in the health promoting behavior was 2.42 ; the range of the score was from 1.44 to 3.71. The variable with the highest degree of performance was self-actualization, whereas the one with the lowest degree was exercise. 2. In the relationships between demographic variables and performance in the health promoting behavior, only the shift system showed statistically significant differences in the total of health promoting behavior ; especially the group of no shift operation was higher in the performance of subscale such as exercise, nutrition, interpersonal support than that of the shift operation. Some demographic variables showed significant differences in the subscale of the health promoting behavior ; age, worker's career and marital status. 3. Performance in the health promoting behavior was significantly correlated with perceived health status, health conception, self-efficacy, perceived benefits and perceived barriers. 4. The most important factor that affects performance in the health promoting behavior was self-efficacy. The combination of self-efficacy, perceived benefits, perceived health status, perceived barriers, shift system and department of work accounted for 31.05% of the variance in health promoting behavior.

• International Journal of Industrial Entomology and Biomaterials
• /
• 제12권1호
• /
• pp.21-28
• /
• 2006

Peroxidase activity was measured in brown leaf spot pathogen (Myrothecium roridum) inoculated potted mulberry (Morus alba) during pre-symptomatic to various symptom development stages and compared with corresponding healthy leaf tissues. The enzyme showed a pH optimum of 7.0 and the activity was linearly increased up to 15 min of incubation. The peroxidase had a broad substrate specificity and the rates of oxidation were in the rank of pyrogallol> guaiacol> ascorbate at pH 7.0. Catechol at 10 mM inhibited 89% of guaiacol-peroxidase and 76% pyrogallol-peroxidase activities, indicated higher non-specific peroxidation in pyrogallol dependent assay system in mulberry than guaiacol. The optimum requirement for the guaiacol dependent assay was 0.2 ml (${\approx}40-60{\mu}g$ equivalent of protein) of crude enzyme source. Excepting the 8th leaf from the apex, the peroxidase activity did not vary appreciably in different leaf positions. In pre-symptomatic phases, an initial (1 to 5 min) rise of peroxidase activity was noticed in inoculated leaves, and then maintained a plateau up to 300 min. In contrary, non-infected tissue showed a slightly increased trend of enzyme level up to 420 min. In infected tissue, a sharp transient increase (3.1 fold) of peroxidase activity appeared between 300 - 420 min post infections. Afterwards, significantly different but steady maintenance of enzyme levels were observed in two treatments. On the other hand, during symptom development, a sharp increase in peroxidase activity was noticed up to 4th grade of lesion appearance (25.1 % to 50% of leaf area infection), and then declined slightly. However, in non-infected but same age healthy leaves, such huge fluctuations of enzyme level did not apparent. A high positive correlation $(R^2=0.92)$ between peroxidase activity and leaf spot development grades was also marked. The result implies that pre-symptomatic burst (between 1 - 5 and 300 - 420 min) and subsequent increased trend of guaiacol peroxidase activity may require for the symptomatic manifestation of Myrothecium leaf spot in mulberry.