• 한국산학기술학회논문지
• /
• 제21권8호
• /
• pp.87-97
• /
• 2020

본 연구는 노인허약의 유의미한 부정적 결과요인들을 검증해 그 인과적 관계를 실증하는 데 연구 목적을 두었다. 이를 검증하기 위해 본 연구는 전국노인실태조사 자료 중 2017년도 조사 자료를 활용하되 본 연구에서 설정한 가설 검증에 필요한 9개 변수만을 추출해서 활용하였다. 가설 검증 결과를 요약하면 다음과 같다. 6가지의 허약요인의 하위 변수들을 위계적 회귀분석에 투입해 부정적 결과요인의 하위 변수인 일상생활활동 장애, 도구적 일상생활활동 장애, 의료서비스 이용에의 영향관계에 대한 실증 결과 일상생활활동 장애에 미치는 영향 실증 결과에서는 최종 모형에서 신체활동, 감정 조절, 사회적 지지가 유의한 영향변수로 검증되었고 도구적 일상생활활동 장애에 미치는 영향 실증 결과에서는 최종 모형에서 신체활동, 감각기능, 인지력, 감정 조절, 사회적 지지가 유의한 영향변수로 검증되었으며 의료서비스 이용에 미치는 영향 실증 결과에서는 최종 모형에서 영양, 신체활동, 감각기능, 감정 조절, 사회적 지지가 유의한 영향변수로 검증되었다. 본 연구의 가설 검증 결과에 기초할 때 장애나 의료서비스 이용과 같은 부정적 결과에 영향을 미치는 노인허약요인을 구체적으로 식별해 그에 상응하는 개별화된 건강관리프로그램의 개발 및 실행이 필요하다.

• 대한한의학방제학회지
• /
• 제24권2호
• /
• pp.80-99
• /
• 2016

Objectives : Instrumental chemical analysis was utilized to investigate the effect of Add-Omit-Saenghyeoryunbu-eum(AO-SHU) on diabetic treatment. One of the most exciting, yet also controversial, arguments is the safety and biological mechanisms of the natural medicine on human body. Therefore, the aim of this study is to provide a better understanding on bioactive chemical components, hazards of heavy metal contamination and biological mechanism of the diabetic medicine composed of 12 different natural herbs. Methods : To study bioactive compound and metallic component in the diabetic medicine in detail, LC-MS/MS (Liquid Chromatography-Mass/Mass), GC (Gas Chromatography) and ICP (Inductively Coupled Plasma) were utilized to characterize the extract of the diabetic medicine and the result was compared with 18 marker substances selected from literature survey. In addition, in vitro assay experiments including GPR 119 activity and human DGAT-1 inhibition, and OGTT (Oral Glucose Tolerance Test) were performed to verify the effectiveness of this medicine on diabetic treatment. Results : Out of 18 marker substances, 9 bioactive compounds were identified from LC-MS/MS analysis which include Citruline, Catalpol, Berberine, Ginsenoside Rb1, Ginsenoside Rg1, Oleanolic acid, β-Sitosterol, Mangiferin, and Schizandrin. ICP study on 245 residual pesticides revealed that 239 species were not detected but 6 species, Dimethomorph, Trifloxystrobin, Pyraclostrobin, Isoprocarb, Carbaryl and Flubendiamide, while the amounts are trace levels, below permitted concentrations. The biological activity was observed in vitro assay and Oral Glucose Tolerance Test(OGTT), which are consistent with a preliminary clinical test result, a drop in blood sugar level after taking this herbal medicine. Conclusions : Instrumental chemical analysis using LC-MS/MS, GC, and ICP was conducted successfully to identify bioactive compounds in AO-SHU for the treatment of diabetes, finding 9 bioactive compounds. Furthermore, in vitro assay experiments and OGTT show that AO-SHU has its biological activities, which imply that it can be a candidate for the future diabetes remedy.

• 디지털융복합연구
• /
• 제15권4호
• /
• pp.511-519
• /
• 2017

본 연구는 낮 병동 입원 치매 환자를 대상으로 작업치료 융복합활동프로그램을 실시하여, 치매환자의 손 기능, 인지기능, 수단적일상생활활동에 미치는 영향에 대해 알아보았다. 치매환자 34명을 대상으로 작업치료 융복합활동프로그램과 약물을 동시에 실시한 실험군 17명과 약물치료만 한 17명을 대조군으로 하여 24주간 주 8회 192회기로 실시하였다. 중재 전과 후의 손기능을 알아보기 위해 손의 장악력 검사를 실시하였고, 인지기능을 알아보기 위해 MMSE-K와 GDS를 실시하였다. 또한 수단적일상생활활동을 알아보기 위해 K-IADL를 이용하였다. 중재 결과 실험군에서는 손기능, 인지기능 및 수단적 일상생활활동이 유의하게 증진했지만, 약물치료만 한 대조군에서는 손기능, 인지기능, 수단적 일상생활활동의 증진이 보이지 않았다. 따라서 본 연구 결과 작업치료 융복합활동프로그램은 손기능, 인지기능, 수단적일상생활활동에 긍정적인 영향을 미친다는 것을 알 수 있다.

• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제13권2호
• /
• pp.151-170
• /
• 2009

This study reports a research which was conducted on how frequently and where the students use the unit circle method while dealing with trigonometric functions in solving the trigonometry questions. Moreover, the reasons behind the choice of the methods, which could be the unit circle method, the ratio method, or the use of trigonometric identities, are also investigated to get an insight about their understanding. In this study, the relationship between the students' choices of methods in solving questions is examined in terms of instrumental or relational understanding. This is a multi-method research which involves a range of research strategies. The research techniques used in this study are test, verbal protocol (think aloud), and interview. The test has been applied to ten tenth grade students of a public school to get students' solution processes on the paper. Later on, verbal protocol has been performed with three students of these ten who were of the upper, middle and lower sets in terms of their performance in the test. The aim was to get much deeper data on the students' thinking and reasoning. Finally, interview questions have been asked both these three students and other three from the initial ten students to question the reasons behind their answers to the trigonometry questions. Findings in general suggest that students voluntarily choose to learn instrumentally whose reasons include teachers' and students' preference for the easier option and the anxiety resulting from the external exam pressure.

• 한국식품조리과학회지
• /
• 제13권3호
• /
• pp.278-285
• /
• 1997

계면활성제가 저장 중의 밥의 특성에 미치는 영향을 알아보기 위해 멥쌀인 동진벼와 찹쌀인 신선벼에 계면활성제폰 SSL, SE1670, Dimodan을 쌀 무게의 0.5% 농도로 첨가하여 취반한 다음 관능검사와 기계적 검사 및 노화정도를 측정하여 저장에 따른 계면활성제 첨가한 밥의 특성을 알아보았다 관능검사 결과 전체적인 선호도는 텍스쳐 특정치에 의해서 영향을 받으며 계면활성제 첨가로 저장 중의 거친 정도와 견고성이 낮고, 끈기와 질음성이 높은 값을 보였으며, 그 정도는 SE, SSL, Dimodan 첨가밥의 순서였다. 계면활성제를 첨가하여 취반한 밥의 저장에 따른 기계적인 특성은 견고성과 탄력성이 무첨가밥보다 유의차를 보이며 낮은 값을 나타내 계면활성제가 견고성을 감소시키는데 기여하였다. 노화도는 저장 1일에 노화도의 증가는 흰밥이 찰밥보다 노화가 빨리 진행되었고 그 정도는 두 종류의 밥 모두 SSL, SE, Dimodan 첨가밥, 무첨가밥의 순서였으며, 저장 1일에서 3일까지의 노화도의 증가는 더운밥에서 저장 1일까지 보다는 그 증가 정도가 완만했으며 흰밥과 찰밥 사이의 뚜렷한 차이는 없었다.

• 한국대기환경학회지
• /
• 제16권5호
• /
• pp.453-467
• /
• 2000

The aim of this research is to collect and characterize fine particles (FPM:$\leq$2.5${\mu}{\textrm}{m}$) and coarse particles (CPM: 2.5~10${\mu}{\textrm}{m}$) using a low volume air sampler provided by the IAEA, at urban (Taejon) and rural area(Wonju) for a period of about two years(April 1996 to May 1998) and to promote a use of nuclear analytical techniques for air pollution studies. For the collection of airborne particulate matter (PM(sub)10), the Gent stacked filter unit sampler and polycarbonate membrane filters were employed. The concentration of trace elements in collected APM samples were determined byu instrumental Neutron Activation Analysis. For validation of the analytical data, internal quality control were implemented by using both the comparison of the analytical results of standard reference materials(NIST SRM 1648) and interlaboratory comparison for proficiency test (NAT-3). The standard uncertainty was less than 15% and Z-score of two samples were within $\pm$1. The monitoring of (PM(sub)10) mass concentration and elemental concentrations were carried out weekly. The average mass concentration of (PM(sub)10) in urban and rural areas were 59.2$\pm$36.5$\mu\textrm{g}$/㎥ and 41.4$\pm$23.7$\mu\textrm{g}$/㎥, respectively. To investigate the emission source, the enrichment factors were calculated for the fine and coarse particle fractions at two sites, respectively and these values were classified for anthropogenic and soil origin elements.

• 한국의류학회지
• /
• 제33권2호
• /
• pp.244-255
• /
• 2009

The purpose of this study was 1) to inquire into characteristics of apparel manufacturers and distributors in China, 2) to classify private Guanxi and organizational relationship type, 3) to find differences in private Guanxi to enterprise type and the class of participations' position, and 4) to also find effects of private Guanxi on organizational relationship. Apparel manufacturers and distributors in China participated in the study. Random sampling method was used to collect the data. Data from 173 questionnaires were used for the statistical analysis. Descriptive analysis, factor analysis, Cronbach's alpha coefficient, t-test, and regression analysis were conducted. Two factors of private Guanxi were classified(i.e., affective Guanxi, instrumental Guanxi). Three factors of organizational relationship type were identified(i.e., opportunistic relationship, cooperative relationship, vertical relationship). The results indicated that distributors regarded affective Guanxi as important more than manufactures and employees regarded affective Guanxi and instrumental Guanxi as important more than presidents. Distributors regarded cooperative relationship as important more than manufactures. Employees regarded organizational relationship as important more than presidents. Affective Guanxi positively affected on cooperative relationship and vertical relationship but negatively affected on opportunistic relationship. Instrumental Guanxi positively affected on opportunistic relationship and vertical relationship. The result of this study may give valuable information to retail merchandisers and strategists who participated in fashion business in China.

• 대한간호학회지
• /
• 제50권6호
• /
• pp.799-812
• /
• 2020

Purpose: This study aimed to construct and test a predictive model that explains and predicts the quality of life in older men living alone. Methods: A self-report questionnaire was used to collect data from 334 older adult men living along aged 65 years or over living in Jeollanam-do provinces. The endogenous variables were depression, self-rated health, instrumental activity of daily life, health promotion behaviors, the number of social participation activities and quality of life. Data were analyzed using the SPSS 21.0 and AMOS 21.0 programs. Results: The final model with 14 of the 8 analysed paths showed a good fit to the empirical data: χ2 = 173.26(p < .001, df = 53), normed χ2 = 3.27, GFI = .92, NFI = .90, CFI = .93, TLI = .89, RMSEA = .08 and SRMR = .06. Activities had direct effect on quality of life of older men living alone and social support had both direct and indirect effects. Meanwhile, function and socioeconomic status showed only indirect effects. The variables included in the eight significant paths explained 83.7% of variance in the prediction model. Conclusion: Instrumental activities of daily living and social support effect directly on quality of life in the older men living alone. Findings suggest that health care providers including community nurses need to provide social support as well as empowerment programs of instrumental activities of daily living and health promotion for improving quality of life of the older men living alone.

• Asia Marketing Journal
• /
• 제19권1호
• /
• pp.35-54
• /
• 2017

Researchers in marketing, sociology, and economics have been interested in the role of social interactions in consumer choice and consumption behaviors. Social interactions, labeled variously as peer effects, social contagion, and neighborhood effects, have important implications for firms' allocation of marketing efforts. In this research, we test and provide empirical evidence for peer effects in consumers' service usage in the context of gym-going behaviors. Using a detailed individual-level membership and attendance data at one of the largest health club chains in the U.S., we document that a focal member's gym-going behavior is influenced by the behaviors and characteristics of the peers at the same branch

• 한국식품조리과학회지
• /
• 제27권6호
• /
• pp.653-659
• /
• 2011

The aim of this study was to determine the optimum amount of apricot seed powder to add to rice flour in oder to prepare Sulgidduk (traditional rice cakes). As the apricot seed powder level of the Sulgidduk increased, the moisture contents of the samples decreased (40.30~43.46%), and the color of L- and a-values also decreased, while the b-value increased. According to instrumental test results, hardness, springiness, gumminess, chewiness and adhesiveness were all highest in the 0% apricot seed powder sample. The cohesiveness of samples did not show a conclusive relationship with the level of apricot seed powder present. In sensory evaluation results, the 3% and 6% samples received high overall acceptability scores. In conclusion, based on both sensory and instrumental testing, the optimal Sulgidduk mixture consisted of 3~6% apricot seed powder added to rice flour.