• 대한간호학회지
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• 제50권4호
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• pp.533-540
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• 2020

Purpose: This study aimed to evaluate nursing students' understanding of the prevention of COVID-19, as well as their anxiety towards the disease and their perception of their professional identity in the wake of the pandemic, in Zhengzhou, China. Methods: A cross-sectional study was designed to investigate 474 nursing students by cluster sampling using a stratified questionnaire from February 15 to March 31, 2020. Multiple linear regression was used to identify the factors affecting professional identity. Binary and multiple logistic regression were used to identify the factors affecting anxiety. Results: Responders with a high level of understanding of COVID-19 and frequent use of behavioral strategies for its prevention comprised 93.2% and 30.0% of the cohort, respectively. Professional identity was significantly associated with gender and anxiety (p < .050). The prevalence of anxiety among nursing students was 12.4%. Male (odds ratio [OR] = 2.39; 95% confidence interval [CI] = 1.26~4.52), sophomores (OR = 5.30; 95% CI = 1.61~7.45), and infrequent use of prevention measures (OR = 3.49; 95% CI = 1.16~5.19) had a significant effect on anxiety. Conclusion: Anxiety during the COVID-19 epidemic gives an adverse effect on the professional identity of nursing in students. Nursing education institutions need to provide psychological counseling services for nursing students, in addition to improving their teaching of COVID-19 prevention strategies.

• Journal of Preventive Medicine and Public Health
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• 제51권6호
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• pp.320-325
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• 2018

Objectives: This pilot study tested the effectiveness of a brief alcohol-related intervention delivered by the social media app WeChat to teach about ethanol-induced facial flushing and increase the willingness of students who see another student flushing to suggest that he or she should reduce or stop drinking. In the context of Chinese drinking culture, it is sometimes socially difficult to refuse a drink, even when experiencing physical discomfort, such as flushing. Methods: Classrooms of students in a medical university in China were randomly assigned to the intervention or control group. Students in the intervention group were invited to view 3 alcohol education lessons on WeChat during a 2-week period. A pretest and posttest before and after the 2-week period assessed changes in students' willingness to intervene if they saw someone flush while drinking. Data were collected about students' alcohol use and their ratings of the lessons. Results: Mixed-design analysis of variance yielded a significant time-by-treatment interaction effect on the variable of willingness to suggest that a flushing person stop or slow down their drinking, and the change was significant between the intervention and control groups. One-way analysis of covariance yielded a significant treatment effect at the posttest, after controlling for the pretest score. Students rated the lessons above the midpoint of the scale for being informative, interesting, and useful. Conclusions: The pilot study showed that a brief alcohol-related intervention delivered by WeChat could produce a measurable positive change in the willingness of university students to suggest that a student who flushes should stop drinking. This pilot study also suggested improvements for future lessons and evaluation design.

• 한국사이코드라마학회지
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• 제21권2호
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• pp.57-72
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• 2018

본 연구의 목적은 중학교 1학년을 대상으로 학교폭력예방 소시오드라마를 실시한 후 학교폭력인식의 효과와 만족도를 분석하는데 있다. 본 연구의 진행은 2018년 4월에 실시하였으며, 실험집단과 통제집단은 S시와 A시 중학교 1학년 각각 12명이다. 연구결과 실험집단의 학교폭력인식 수준은 사전검사 14.50, 사후검사 11.83, 평균 순위 9.33이었다. 통제집단의 학교폭력인식 수준은 사전검사 14.25, 사후검사 13.83, 평균 순위는 15.67이었다. 두 집단 간의 Mann-Whitney의 U 검정 결과 통계적으로 유의하게 나타나, 학교폭력예방 소시오드라마가 효과적이라고 볼 수 있다. 또한 실험집단의 소시오드라마 만족도는 전체 평균이 5점 만점 중 4.71로 매우 높게 나왔으며, 특히 '선생님의 수업진행'에 대한 만족도가 가장 높았다. 본 연구를 통해 중학생을 위한 학교폭력예방 소시오드라마의 보급과 확산을 기대한다.

• 가정간호학회지
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• 제27권3호
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• pp.294-305
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• 2020

Purpose: The aim of this study was to examine the preliminary effects of applying a developed web-based video education program in patients with cancer receiving chemotherapy. Methods: A one-group pre-post test design was used. The web-based video education program to prevent infection consisted of 5 subjects. The program was confirmed to be valid by an expert group of doctors and nurses. Convenience sampling of 23 subjects was performed to evaluate the effectiveness of the web-based video education program. Data were analyzed based on nonparametric statistics using SPSS 25.0 software. Results: Per the results of the study, knowledge and self-management behavior of infection prevention significantly improved after application of the program; however, there was no significant difference in self-efficacy. Conclusion: It was confirmed that the web-based video education program is effective to improve the knowledge and self-management behavior of infection prevention. However, as a preliminary study, this study did not have external validity. Therefore, it is necessary to verify the effectiveness of the program through randomized controlled trials and confirm the true infection prevention effect that was not considered in this research design.

• Geomechanics and Engineering
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• 제24권6호
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• pp.573-588
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• 2021

The interaction of cracks and water significantly affects the fracture mechanism of rocks. In this study, laboratory tests were conducted using sandstone samples containing a single fissure to explore the hydro-mechanical behaviors in the failure process of pre-cracked rocks. The internal crack characteristics were also analyzed using X-ray CT scanning. The results show that the confining pressure has the greatest effect on the mechanical properties (e.g., strengths, elastic modulus, and Poisson's ratio), followed by the fissure inclination and water pressure. At a lower fissure inclination, the confining pressure may control the type main cracks that form, and an increase in the water pressure increases the number of anti-wing cracks and the length of wing cracks and branch cracks. However, the fracture behaviors of samples with a higher fissure inclination are only slightly affected by the confining pressures and water pressures. The effect of fissure inclination on the internal crack area is reduced with the propagation from the fissure tips to the sample ends. The fissure inclination mainly affects the value of permeability but not affect the trend. The impact of pre-existing fissure on permeability is smaller than that of confining pressure and water pressure.

• 한국지반공학회논문집
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• 제21권1호
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• pp.69-80
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• 2005

억지말뚝의 활동억지효과를 조사하기 위하여 일련의 모형실험을 수행하였다. 이를 위하여 억지말뚝이 설치된 사면에 대한 모형실험장치를 고안하였다. 그리고, 모형실험시 각종 계측시스템을 이용하여 사면활동에 따른 억지말뚝의 변형거동을 조사하였다. 모형실험결과 말뚝간격비가 1인 단독말뚝의 경우보다 일정한 간격비를 가진 줄말뚝에서 사면활동에 대한 억지효과가 더 우수함을 확인할 수 있다. 즉, 사면활동시 말뚝과 말뚝사이의 지반아칭효과로 인하여 사면활동에 대한 억지말뚝의 저항효과가 증가하게 된다. 억지말뚝의 간격비가 작아질수록 사면활동에 대한 억지율은 증가하며, 간격비가 0.5일 때 사면활동에 대한 억지율이 가장 우수한 것으로 나타났다. 억지말뚝의 소요억지율을 1.1로 하면 말뚝간격비는 $0.5{\sim}0.8$ 사이로 설치되어야 한다. 그리고, 억지말뚝의 간격비가 $0.5{\sim}0.8$일 경우 억지말뚝이 휨응력을 크게 받으므로 억지말뚝의 사면활동에 대한 저항효과가 우수함을 알 수 있다. 따라서, 사면활동에 저항하기 위한 합리적인 억지말뚝의 간격비는 $0.5{\sim}0.8$로 제안할 수 있다.

• 한국치위생학회지
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• 제1권1호
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• pp.77-87
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• 2001

The authors have studied the 8 weeks clinical experiment on 34 dental patients of age 20s for control group and 32 for experimental 1 group(Paste Type Dentifrice with Bamboo Salt, Chitosan and Powder of Pine Needles and Leaves of Bamboo.) and 32 for experimental 2 group(Powder Type Dentifrice with Bamboo Salt, Chitosan and Powder of Pine Needles and Leaves of Bamboo), in order to find out the effect of plaque removal, prevention of calculus and stain formation. and Gingival effect. The obtained results are as following. 1. Plaque removal effect was the similar level on group 1 and on group 2 as control group. 2. For prevention of calculus formation, there was a little bit better on group 1 at 8 weeks, and for prevention of stain formation, it revealed more or less difference between on group 1, group 2 and control group at 8 weeks. 3. on PMA index, it revealed the significantly differences between group 1, group 2 and the control group at 8 weeks(p<0.05), so it is estimated that there might be signified for gingival subside effect by use of dentifrice with Bamboo Salt, Chitosan and Powder of Pine Needles and Leaves Bamboo.

• Journal of the Korean Data Analysis Society
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• 제20권6호
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• pp.3169-3183
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• 2018

본 연구는 정서사건이론을 기반으로 조직 상황에서 직무사건이 직무열의에 영향을 미치는 과정에서 개인차 변수인 조절초점이 어떠한 영향을 미치는지 살펴보는 것을 목적으로 하였다. 이를 위해 금융권 종사자 232명을 대상으로 긍정사건, 긍정정서, 조절초점 및 직무열의에 대한 설문조사를 실시하였다. 연구 결과는 다음과 같다. 첫째, 주효과 검증에서 금융업 종사자들이 경험하는 긍정사건은 긍정정서를 높여 직무열의에 정적인 영향력을 미치는 것으로 나타났다. 둘째, 조절효과 검증에서 긍정정서가 직무열의에 미치는 영향은 조절초점의 수준에 따라 차별적인 영향력을 보였다. 즉, 향상초점 수준이 높을수록 긍정정서의 직무열의에 대한 효과는 강화되었고, 예방초점 수준이 높을수록 긍정정서의 직무열의에 대한 효과는 약화되는 것으로 확인되었다. 셋째, 조절된 매개 효과 검증에서는 향상초점이 아닌 예방초점에서만 조건적 간접효과가 발견되었다. 즉, 긍정사건이 긍정정서를 매개로 하여 직무열의에 미치는 간접효과의 크기는 예방초점이 높을 때 약화되는 것으로 나타났다. 마지막으로 이러한 결과를 바탕으로 연구의 의의와 제한점 및 추후 연구 이슈에 대해서 논의하였다.

• Child Health Nursing Research
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• 제10권1호
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• pp.66-79
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• 2004

Purpose: The purpose of this study were to develop a respiratory communicable disease prevention program for preschoolers and measure it's effects. Method: The respiratory communicable disease prevention program for preschoolers consisted of texts, cartoons, photographs, discussions, demonstrations, puzzle games, die games, compensation/reinforcement, and token economy which were directed under the systematic design of instruction by Dick ％amp; Carey. This study was a quasi experimental study under the nonequivalent control group with pretest-posttest design. The subjects of this study were 45 preschool children who are attending 3 different district nursery schools and they were matched by the age, pretest knowledge, and pretest behavior. The instrument used in this study was criterion referenced test items that were developed by a researcher for evaluating the subject's knowledge, attitude, and behavior about respiratory communicable disease prevention. A pretest was administered a week before treatment. Experimental group Ⅰ was administered by the treatment of respiratory communicable disease prevention program. Experimental group Ⅱ was administered by above program with token economy program. The posttest was conducted on the eighth day. The third test for behavior was completed 15th day. To determine the effect of the program, the data were analyzed by the SAS 6.12 program with Kruskal Wallis test, ANCOVA, ANOVA, Duncan's test and paired t-test. Result: 1) There was a significant difference in knowledge between the experimental groups and control group(F=5.89, P=0.0197). 2) There was a significant difference in attitude between the experimental groups and control group(F=3.29, P=0.0469). 3) There was a non-significant difference in behavior between the experimental groups and control group(F=0.00, P=0.9512). 4) In the experimental groupⅡ, there was highly significant increase in behavior after token economy(t=4.5252, P=0.0005). Conclusion: It was found that the respiratory communicable disease prevention program for preschool children was effective in changing the preschoolers' knowledge and attitude on the respiratory communicable disease prevention, but not enough for changing the preschoolers' behavior. Token economy was improved as an effective and strong method for inducing desirable changes of preschoolers' behavior.

• 한국콘텐츠학회논문지
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• 제12권6호
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• pp.230-237
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• 2012

1950년대 이후 범죄에 대한 기존의 예방법에 대한 한계로 인해 기존의 범죄예방과 다른 관점을 가진, "환경설계를 통한 범죄예방활동(Crime Prevention Through Environmental Design)"에 관심을 가지기 시작했다. CPTED는 범죄자의 범죄 특성과 인간의 주변 환경과의 적절한 활용을 통해 범죄를 예방하는 방법이다. CPTED의 요소 일반적으로 자연적 감시, 자연적 접근통제, 영역성, 활동의 지원 등이 있다. 이 중 자연적 감시는 CPTED 기법의 요소로서 자연적인 감시활동이 범죄자의 행동을 감시하여 범죄를 예방한다는 것이다. 기존의 CPTED 연구와 달리 이 연구에서는 단독주택지역이라는 CPTED 특성을 바탕으로 확보된 자연적 감시에 의해 범죄 두려움에 영향을 주어 범죄 두려움 감소와 함께 범죄에 대한 피해 경험이 줄어들었다는 연구 결과를 얻을 수 있었다. 따라서 자연적 감시의 확보가 가능한 지역에서는 범죄에 대한 두려움이 감소하고, 실질적인 범죄가 줄어든다는 결과를 얻을 수 있었다.