• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.753-765
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• 2016

본 연구는 청소년의 게임이용이 학교생활 성실도에 미치는 영향을 분석하고, 그 영향을 조절하는 변인을 살펴보았다. 성별 집단으로 구분해 다중회귀분석을 실시했으며, 주요 분석결과는 다음과 같다. 먼저, 게임중독 변인은 여학생과 남학생 집단 모두에서 학교생활 성실도에 부(-) 방향의 영향을 미쳤다. 한편 게임시간은 남학생 집단에서만 부 방향으로 영향을 미쳤는데 이는 선호 게임유형이나 게임이용 방식에 젠더 차이가 존재하는 측면을 반영한다. 또한, 사회적 관계 변인은 게임이용의 부정적 효과를 조절하는 것으로 나타났다. 남학생 집단에서는 아버지와의 관계가 게임시간의 부적 효과를 조절했으며, 여학생은 어머니와의 관계가 게임중독의 부적 영향을 완화하는 것으로 밝혀졌다. 한편, 남학생의 경우 사회적 관계 변인이 게임중독의 부정적 영향을 조절하지 못했다. 본 연구는 게임이용의 효과에서 나타나는 성별 차이를 밝힘으로써 게임연구에서 젠더 특화적인 접근이 필요하다는 주장을 뒷받침했다.

• Journal of Korean Neurosurgical Society
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• 제54권5호
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• pp.390-398
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• 2013

Objective : We determined whether the relationship between the neuropsychological performance of patients with mild traumatic brain injury (TBI) and their psychopathological characteristics measured by disability evaluation are interrelated. In addition, we assessed which psychopathological variable was most influential on neuropsychological performance via statistical clustering of the same characteristics of mild TBI. Methods : A total of 219 disability evaluation participants with mild brain injury were selected. All participants were classified into three groups, based on their psychopathological characteristics, via a two-step cluster analysis using validity and clinical scales from the Minnesota Multiphasic Personality Inventory (MMPI) and Symptom Checklist-90-revised (SCL-90-R). The Korean Wechsler Adult Intelligence Scale (K-WAIS), Korean Memory Assessment Scale (K-MAS) and the Korean Boston Naming Test (K-BNT) were used to evaluate the neurocognitive functions of mild TBI patients. Results : Over a quarter (26.9%) experienced severe psychopathological symptoms and 43.4% experienced mild or moderate psychopathological symptoms, and all of the mild TBI patients showed a significant relationship between neurocognitive functions and subjective and/or objective psychopathic symptoms, but the degree of this relationship was moderate. Variances of neurocognitive function were explained by neurotic and psychotic symptoms, but the role of these factors were different to each other and participants did not show intelligence and other cognitive domain decrement except for global memory abilities compared to the non-psychopathology group. Conclusion : Certain patients with mild TBI showed psychopathological symptoms, but these were not directly related to cognitive decrement. Psychopathology and cognitive decrement are discrete aspects in patients with mild TBI. Furthermore, the neurotic symptoms of mild TBI patients made positive complements to decrements or impairments of neurocognitive functions, but the psychotic symptoms had a negative effect on neurocognitive functions.

• 대한의생명과학회지
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• 제9권1호
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• pp.51-58
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• 2003

This study was carried out to investigate the preventive and therapeutic effect of Panax ginseng water extract (PG-WE) on the toxicity induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), one of the most notorious toxic environmental pollutants belonging to the group of polyhalogenated aromatic hydrocarbons. Normal control (NC) group guinea pigs (180~200 g) received vehicle and saline, and TCDD-treated (TT) group was given TCDD and saline. P100 and P200 group animals received PG-WE for 28 days since 1 week before TCDD exposure at daily doses of 100 mg/kg b.w. and/or 200 mg/kg b.w., respectively. C100 and C200 group received PG-WE for 14 days starting 1 week after TCDD-exposure. Toxicity was induced by a single intraperitoneal injection of TCDD (1 $\mu\textrm{g}$/kg b.w.). Abnormal increase in AST and ALT activities in TT group was significantly improved by the administration of PC-WE. Microscopically, there were mild to moderate swelling of hepatocytes, hyperchromatism of individual cells, acidophilic cytoplasm and cytoplasm vacuolation of some hepatocytes, slight to moderate variations of staining density, occasional single cell necrosis, variable size and shape of some hepatocytes, small groups of degenerating hepatocytes surrounded by mononuclear cells, dilated sinusoids of centrilobular zone and some loss of lobular architecture in TT group liver. From these results, we could find the protective and therapeutic role of PG-WE in TCDD-induced liver toxicity by examining the blood chemical parameters and histopathological observation.

• 한국의류학회지
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• 제16권4호
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• pp.443-455
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• 1992

The purpose of this study is to verify the theoretical model on the clothing satisfaction. Research problems are as following; 1. To identify a causal model on the clothing satisfaction. 2. To examine the causal model by the brand levels. 3. To examine the causal model by the consumer characteristics. The empirical study of the above research problems is carried out by the longitudinal survey. The subjects selected for the final analysis are 362 women living in Seoul and Pusan. The results of our analysis are as following; 1. The main causal course of the clothing satisfaction is that the brand level and the consumer expectation $\rightarrow$ the expectation $\rightarrow$ the perceived performance ($\rightarrow$ the disconfirmation) $\rightarrow$ the clothing satisfaction. Those relevant variables explain $70\%$ of the clothing satisfac-tion variance. Especially, the influence of the perceived performance appears to be greater than that of the disconfirmation. 2. According to our analysis, the expectation influences the clothing satisfaction indirectly through the perceived performance. Especially, the normative expectation exhibits the contrast effect on the disconfirmation, while the predictive expectation exhibits the assimilation effect on the perceived performance. 3. The clothing satisfaction model differs by the brand levels (high price brand vs. moderate price brand) and by the consumer involvement levels (high involvement vs. low involvement). The relevant variables explain $65\%$ of the clothing satisfaction variance in the high price brand, while they explain $77\%$ in the moderate price brand. In the high involvement group, the relevant variables explain $78\%$ of the clothing satisfaction variance and $60\%$ in the low involvement group. In both involvement groups, the most critical direct variable is the perceived perfor-mance. In conclusion, we find that the clothing satisfaction can be explained by three constructs, the expectation, the perceived performance and the disconfirmation. The hypothesis that the two dimensions of the expectation explain the clothing satisfaction better is empirically supported in our study. Finally, we find that the clothing satisfaction models differ between two brand levels and consumer involvement levels.

• Journal of Microbiology and Biotechnology
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• 제23권6호
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• pp.771-778
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• 2013

Essential oils are increasingly of interest for use as novel drugs acting as antimicrobial and antiviral agents. In the present study, we report the in vitro antiviral activities of 29 essential oils, extracted from Chinese indigenous aromatic plants, against the tobacco mosaic virus (TMV). Of these essential oils, those oils from ginger, lemon, tea tree, tangerine peel, artemisia, and lemongrass effected a more than 50% inhibition of TMV at 100 ${\mu}g/ml$. In addition, the mode of antiviral action of the active essential oils was also determined. Essential oils isolated from artemisia and lemongrass possessed potent inactivation and curative effects in vivo and had a directly passivating effect on TMV infection in a dose-dependent manner. However, all other active essential oils exhibited a moderate protective effect in vivo. The chemical constitutions of the essential oils from ginger, lemon, tea tree, tangerine peel, artemisia, and lemongrass were identified by gas chromatography and gas chromatography-mass spectrometry. The major components of these essential oils were ${\alpha}$-zingiberene (35.21%), limonene (76.25%), terpinen-4-ol (41.20%), limonene (80.95%), 1,8-cineole (27.45%), and terpinolene (10.67%). The curative effects of 10 individual compounds from the active essential oils on TMV infection were also examined in vivo. The compounds from citronellal, limonene, 1,8-cineole, and ${\alpha}$-zingiberene effected a more than 40% inhibition rate for TMV infection, and the other compounds demonstrated moderate activities at 320 ${\mu}g/ml$ in vivo. There results indicate that the essential oils isolated from artemisia and lemongrass, and the individual compound citronellal, have the potential to be used as an effective alternative for the treatment of tobacco plants infected with TMV under greenhouse conditions.

• 한국전문물리치료학회지
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• 제14권1호
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• pp.74-81
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• 2007

The purpose of this study was to investigate effect of hospital-based physical and occupational therapy on Modified Barthel Index (MBI) score in stroke inpatients at least 3 months after stroke, to predict MBI score at discharge from subscales of MBI, and determine the characteristics of stroke at admission. Forty-five stroke inpatients participated and received physical and occupational therapy for two months. All participants were assessed on MBI at admission and discharge. The collected data was analyzed by dependency level (MBI${\leq}$74 and MBI${\geq}$75) at admission. The results revealed that the MBI score at discharge was significantly improved compared to the MBI score at admission in the group with more than moderate dependency level (MBI${\leq}$74). In particular, personal hygiene, dressing, ambulation, and chair/bed transfer were improved. But only ambulation was improved significantly in the group with a less than mild dependency level (MBI${\geq}$75). The chair/bed transfer, dressing, ambulation, and Mini-Mental State Exam-Korea score at admission were important factors in the MBI score at discharge. Eighty-six percent of the variation in MBI score function at discharge can be explained. Therefore, it is suggested that hospital-based physical and occupational therapy in subacute stroke improve independent living status, especially for patients with a more than moderate dependency level.

• Restorative Dentistry and Endodontics
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• 제10권1호
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• pp.31-42
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• 1984

The toxic effect of adhesive resins on the dog's pulp tissue was studied with 70 teeth from 5 dogs. The experimental materials were Clearfil, a mixture of Clearfil with calcium hydroxide powder, Panavia-EX, and a mixture of Panavia-EX with calcium hydroxide powder. As a control group, calcium hydroxide powder was used. Each material was placed on the pulpotomized tissue surface. After 3 days, 1, 2,4, and 6 weeks, the teeth and apical tissue were processed routinly and stained with hematoxylin and eosin. Pathological tissue changes due to the toxicity of adhesive resins were observed by light microscope, and the pH of Panavia-EX and the Bonding agent of Clearfil were measured. Following were the results; 1. In the group of calcium hydroxide powder, slight inflammatory change was observed in the pulpotomized surface and adjacent pulp tissue on 3 day. 1 week case showed incomplete dentin bridge. The remaining pulp tissue was normalized according to the days elapsed. 2. In the group of Clearfil, early inflammatory change revealed in the superificial portion of the remaining pulp tissue on 3 day. The inflammation spreaded over the total pulp tissue and partial necrosis was observed in 1 week and 2 week cases. Total necrosis of pulp tissue and moderate inflammatory change at the apical tissue was noticed in 4 week and 6 week cases. 3. In the group of Panavia-EX, moderate inflammatory change appeared in the superficial pulp tissue on 3 day, and severe inflammatory change over all pulp tissue found in 1 week case. Pulp necrosis was obvious in 2 week case. 4 week and 6 week cases were totally necrotized up to the periapical tissue. 4. In the groups of mixtures with calcium hydroxide powder, the pulp tissue destruction was retarded, compared with the groups of Clearfil and Panavia-EX. 5. Panavia-EX was more destructive than Clearfil. 6. The acidity of freshly mixed Bonding agent of Cleafil was pH 4.0, and that of Panavia-EX was pH 2.0.

• 디지털융복합연구
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• 제9권4호
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• pp.143-156
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• 2011

본 연구의 목적은 친환경농산물의 구체적인 마케팅연구 일환으로 친환경농산물의 품질인증마크가 주는 메시지 효과에 대해 다루고자 하며 또한 조절초점에 따른 설득지식의 활성화, 즉 조절초점 적합성이론을 친환경농산물의 품질인증마크(유기농산물 vs. 무농약농산물)에 적용시켜 봄으로서 친환경농산물의 품질인증마크에서도 소비자가치의 활성화 효과를 확인 해보았다. 연구결과, 친환경농산물의 품질인증마크(유기농산물 vs. 무농약농산물)는 서로 다른 조절초점을 가지고 있다는 것은 소비자들이 친환경농산물의 품질인증마크(유기농산물 vs. 무농약농산물)에 따라 얻고자하는 목표가 상이하다는 것을 보여준다. 또한 해석수준이론에 다른 적합한 설득커뮤니케이션 방법을 제시함으로서 개인의 성향적 맥락 하의 다양한 소비행동연구에 실무적 시사점을 제공해 줄 수 있을 것이라고 본다.

• 기술혁신학회지
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• 제15권4호
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• pp.862-880
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• 2012

혁신형 기업들의 기업가적 지향성이 기업성과에 정(+)의 영향을 미친다는 것은 대체로 널리 인정되고 있는 사실이다. 기업의 조직문화가 혁신적이고 진취적일수록 환경 적응력이 높고 적극적이기 때문이다. 그러나 선행연구를 보면 기업 성과 중의 일부분 혹은 선행요인이라고 볼 수 있는 기술사업화를 종속변수로 하여 기업가적 지향성의 효과를 연구한 결과는 국내에서 아직 찾아볼 수 없다. 이에 본 연구는 기업가적 지향성이 기술사업화에 미치는 효과를 분석하였다. 아울러 환경변화 요인 중 하나인 경쟁강도를 두 변수간의 관계에 대한 조절변수로 선택하여 분석하였다. 분석 결과 기업가적 지향성은 기술사업화에 긍정적인 영향을 미치지만 경쟁 강도는 조절효과를 미치지 못하는 것으로 나타났다. 이러한 결과는 시장 환경이 동태적일수록 기업가적 지향성이 기업성과에 미치는 영향이 더 높다는 기존의 연구결과와 부분적으로 상치된다. 본 연구에서는 이러한 연구결과의 시사점을 제시하고 향후 연구방향을 논의하였다.

• 지역사회간호학회지
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• 제32권2호
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• pp.195-204
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• 2021

Purpose: This study was to determine how attitude, subjective norm, and perceived behavioral control (PBC) were related to parents' intentions to vaccinate their sons in elementary school against human papillomavirus (HPV), applying the updated theory of planned behavior. Two hypotheses were examined: PBC would moderate the relationship of attitude to intention and subjective norm to intention, respectively. Methods: This was a cross-sectional study with 231 participants recruited in November, 2018. Inclusion criteria for the participants were parents with 5th-6th grade boys in elementary schools. The moderation effects of the hypotheses were analyzed using the PROCESS macro for SPSS. Results: PBC significantly moderated the relationship of attitude to intention on HPV vaccination. The simple effect of attitude to intention was significant under three different levels of the PBC (low, moderate, and high), but the magnitudes of the relationships were not homogeneous. The magnitude of the relationship between attitude and intention was the lowest for the parents with the low level of the PBC. In the relationship of subjective norm to intention on HPV vaccination, the moderating effect of the PBC was not supported. Subjective norm and PBC directly predicted the intention on HPV vaccination. Conclusion: In order to promote the parents' intentions to vaccinate their sons in elementary school against HPV, we need a program that can improve parents' attitude, subjective norm, and PBC, requiring special attention to the parents with the low PBC.