• Title/Summary/Keyword: Stress relief

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A Study on the Function and Role of Morinda citrifolia L. (Noni) (노니의 기능 및 역할에 관한 연구)

  • Hwang, Hyo-Jeong;Shin, Kyung-Ok;Han, Kyoung-Sik
    • The Korean Journal of Food And Nutrition
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    • v.32 no.4
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    • pp.275-283
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    • 2019
  • This study was carried out to investigate the various roles and effects of Morinda citrifolia L.(noni) on the human body and to utilize the findings obtained for future disease related research on food and nutrition. Morinda citrifolia L. has been used in folk medicine by Polynesians for over 2,000 years and is reported to have a broad range of therapeutic effects. Noni is an alkaloid system such as proxeronine, scopoletin, octanoic acid, terpenoids, alkaloids, anthraquinones, nordamnacanthal, morindone, rubiadin, b-sitosterol, flavone glycosides, linoleic acid, acubin, L-asperuloside, caproic acid, caprylic acid, ursolic acid, rutin. Noni's side effects have been reported to affect anti-inflammatory, analgesics, LDL antioxidant, anti-tumor, antifungal, antibiotic, antiviral, antiparasitic and immunosuppressive effects. In particular, noni's efficacy is considered to be important for the prevention of diseases by inhibiting active oxygen, which is a direct cause of oxidative stress, through various metabolites through 'xeronine system'. Noni's functions and effects that have been examined in this study include anti-inflammation, pain relief, antioxidant, anticancer, hepatocyte protection among others. Therefore, noni's extracts are considered highly useful for diverse scientific and nutritional health functional foods.

The Effect of Smart Working and Psychological Attachment from Work on Right to Disconnect : Focused on Moderating Effect of Open Communication and Gender (스마트워크와 심리적 비분리가 연결되지 않을 권리 인식에 미치는 영향 : 의사소통 개방성과 성별의 조절효과를 중심으로)

  • Park, Jung-Ryeol;Kwon, Sun-Dong
    • Journal of Information Technology Applications and Management
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    • v.26 no.1
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    • pp.77-93
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    • 2019
  • Recently, office workers are increasingly aware of the right to disconnect because of the pressure from strong connections with Internet messengers. In this study, we examined the reason why the perception of the right to disconnect increases and how to deal with it. This research model is that smart working and psychological attachment from work affect right to disconnect, and that open communication and gender moderate the intensity of these effects. To verify this research model, survey questionnaires were distributed to workers in smart working environments, and 400 data were collected and analyzed using Smart-PLS. As results of data analysis, it was verified that smart working and psychological attachment from work had a significant influence on right to disconnect, that open communication group had a lesser effect of psychological attachment from work on right to disconnect than closed communication group, and that women had a lesser effect of psychological attachment from work on right to disconnect than men. Organizations need to maintain a desirable level of right to disconnect in order to improve the quality of working life. But, if it is impossible, They need to change the way of communication more openly so as to absorb the burden of strong connection by Internet. And they need to perform task assignment or stress relief policy reflecting gender characteristics.

Design of Natural Dyeing Hanbok-Type Leisurewear Using Elm Bark and Rubia akane Nakai Composite Extracts (느릅나무껍질과 꼭두서니 복합추출물을 이용한 천연염색 한복형 휴식복 디자인)

  • Jang, Hyun-Joo
    • Fashion & Textile Research Journal
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    • v.23 no.2
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    • pp.151-158
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    • 2021
  • The purpose of this study was to develop high-quality naturally dyed leisurewear with images of traditional Korean clothing that keeps a psychologically comfortable and physically pleasant environment at home and in vacation spots. The root bark of elm trees, the atopic skin, is also known to be effective for the relief of rhinitis and atopic diseases as well as stress and insomnia. However, there is insufficient color in the bark for the dyeing of fashion products, so to compensate for the lack of color, for dyeing purposes it was combined with a composite extract called Rubia akane Nakai resulting in a relatively bright red color. Except for the light fastness, all the fastnesses were rated 4 to 5, showing excellent results. Through complex dyeing using elm bark and pods extract the author produced four high-quality vests, one-piece, a gown, and jeogori-pantsuits of silk materials with Korean images that are suitable wear for relaxing comfortably at home and during breaks and which provide a comfortable and physically pleasant experience. The vest was made with the formal style of Bae-ja and Dang-eu, the dress is made of Cheok-lik, and the gown is made of Wonsam. It will be meaningful at a time when the importance of rest is increasing due to the healing clothes worn by busy modern people.

Gender differences in dessert satisfaction and purchase behaviors among university students in Gwangju: a preliminary study (광주지역 일부 남녀 대학생의 디저트 섭취 실태, 구매 인식과 식태도 비교 분석 : 예비연구)

  • Hyun-Jeong Na;Hyun-Young Jung;Joomin Lee
    • Korean Journal of Community Nutrition
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    • v.28 no.4
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    • pp.293-301
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    • 2023
  • Objectives: This study aimed to examine the effect of eating habits and dietary attitudes on dessert consumption among university students in Gwangju Province, South Korea. Methods: A survey was conducted from May to June 2022. Out of 300 distributed questionnaires, 261 valid responses were included in the analysis. The survey assessed dessert selection, satisfaction, consumer attitudes and behaviors, as well as factors influencing satisfaction. Results: Both genders reported purchasing desserts 2 to 3 times per week, primarily after lunch, due to the convenience of dessert accessibility. Males favored ice cream, bakery items, and fruits, while females preferred bakery items, ice cream, and fruits in that sequence. 'Having fun' was identified as the most common motivation for dessert consumption post-meal. Notable gender disparities emerged regarding perceptions of dessert consumption, including its role in stress relief, potential for nutritional imbalance, positive effects, and preferences for seasonal menus. Significant gender-based differences also manifested in intentions to purchase dessert, responsiveness to price changes, and inclination to recommend desserts to others. Conclusions: This study offers foundational data on university students' dessert purchasing behaviors, perceptions, and satisfaction levels, intending to inform strategies promoting healthier dietary habits.

Two Dimensional Size Effect on the Compressive Strength of T300/924C Carbon/Epoxy Composite Plates Considering Influence of an Anti-buckling Device (T300/924C 탄소섬유/에폭시 복합재 적층판의 이차원 압축 강도의 크기효과 및 좌굴방지장치의 영향)

  • ;;;C. Soutis
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2002.10a
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    • pp.88-91
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    • 2002
  • The two dimensional size effect of specimen gauge section (length x width) was investigated on the compressive behavior of a T300/924 [45/-45/0/90]3s, carbon fiber-epoxy laminate. A modified ICSTM compression test fixture was used together with an anti-buckling device to test 3mm thick specimens with a 30$\times$30, 50$\times$50, 70$\times$70, and 90mm$\times$90mm gauge length by width section. In all cases failure was sudden and occurred mainly within the gauge length. Post failure examination suggests that $0^{\circ}$ fiber microbuckling is the critical damage mechanism that causes final failure. This is the matrix dominated failure mode and its triggering depends very much on initial fiber waviness. It is suggested that manufacturing process and quality may play a significant role in determining the compressive strength. When the anti-buckling device was used on specimens, it was showed that the compressive strength with the device was slightly greater than that without the device due to surface friction between the specimen and the device by pretoque in bolts of the device. In the analysis result on influence of the anti-buckling device using the finite element method, it was found that the compressive strength with the anti-buckling device by loaded bolts was about 7% higher than actual compressive strength. Additionally, compressive tests on specimen with an open hole were performed. The local stress concentration arising from the hole dominates the strength of the laminate rather than the stresses in the bulk of the material. It is observed that the remote failure stress decreases with increasing hole size and specimen width but is generally well above the value one might predict from the elastic stress concentration factor. This suggests that the material is not ideally brittle and some stress relief occurs around the hole. X-ray radiography reveals that damage in the form of fiber microbuckling and delamination initiates at the edge of the hole at approximately 80% of the failure load and extends stably under increasing load before becoming unstable at a critical length of 2-3mm (depends on specimen geometry). This damage growth and failure are analysed by a linear cohesive zone model. Using the independently measured laminate parameters of unnotched compressive strength and in-plane fracture toughness the model predicts successfully the notched strength as a function of hole size and width.

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THE EFFECTS OF DENTIN BONDING AGENT THICKNESS ON STRESS DISTRIBUTION OF COMPOSITE-TOOTH INTERFACE : FINITE ELEMENT METHOD (상아질 접착제의 두께가 치아와 복합레진 경계의 응력발생에 미치는 영향에 관한 유한요소법 연구)

  • Park, Sang-Il;Kim, Ye-Mi;Roh, Byoung-Duk
    • Restorative Dentistry and Endodontics
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    • v.34 no.5
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    • pp.442-449
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    • 2009
  • The aim of this study was to examine that thick dentin bonding agent application or low modulus composite restoration could reduce stresses on dentin bonding agent layer. A mandibular first premolar with abfraction lesion was modeled by finite element method. The lesion was restored by different composite resins with variable dentin bonding agent thickness ($50{\mu}m$, $100{\mu}m$, $150{\mu}m$). 170N of occlusal loading was applied buccally or lingually. Von Mises stress on dentin bonding agent layer were measured. When thickness of dentin bonding agent was increased von Mises stresses at dentin bonding agent were decreased in both composites. Lower elastic modulus composite restoration showed decreased von Mises stresses. On root dentin margin more stresses were generated than enamel margin. For occlusal stress relief at dentin boning agent layer to applicate thick dentin bonding agent or to choose low elastic modulus composite is recommended.

A Convergence Study on Stress, Peer Relationships, and Depression according to Differences in Academic Performance and household Income of Youth in Coal Mine Areas (탄광지역 청소년의 학업성적 및 가구소득 차이와 스트레스, 교우관계 및 우울의 융복합 상관 연구)

  • Kim, Seon-Jo;Lee, Seong-Ae;Lee, Ye-Eun;Park, Hyoung-Ryul;Jeong, Jung-Woo;Song, Bo-Kyoung
    • Journal of the Korea Convergence Society
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    • v.13 no.2
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    • pp.123-129
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    • 2022
  • This study investigated a differences in grade (G), academic performance (AP), and household income (HI) on adolescents' stress (S), peer relationship (PR), and depression (D) in the coal mine area. The study method was to measure S, PR and D according to different of G, AP, HI for 87 middle school students located in Taebaek and Samcheok Dogye area. As a result, there were significant differences in PR in the 2nd G, and significant differences were shown in PR and D according to HI and AP. Based on these results, it is necessary to expand the support program for PR of middle school students in the coal mine area, and to develop and support active health promotion programs in the community for stress relief and academic activities, especially for low HI.

An Integrative Review on Nursing Studies Related to Humor (유머와 관련된 국내 간호연구의 통합적 고찰)

  • Kim, Shin-Jeong;Kim, Sung Hee;Lee, Jung-Eun;Kim, Hye-Young;Yoo, So Young;Oh, Jina
    • Child Health Nursing Research
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    • v.20 no.1
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    • pp.58-66
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    • 2014
  • Purpose: The purpose of this paper was to describe the attributes of nursing with humor based on an integrative review and to present basic information for developing humor intervention programs for children. Methods: Using combinations of the terms 'nursing' and 'humor' as key words, the researchers searched four electronic databases to relevant identify studies. Thirteen studies were selected through full text screening of related research published in academic journals from January 1993 to April 2013. Results: Through in-depth discussion and investigation of the relevant literature, three components emerged; 1) using instruments of coping for stress relief, 2) symptoms relief through pleasant feeling, and 3) job satisfaction and work improvement of nurse using humor. Conclusion: The results of this study suggest that humor is valuable as a nursing intervention for children and the possibility of bringing about positive results in nursing care if nurses utilize the sense of humor as fully as they can. Therefore, it is critical for nurses to develop a diversity of humor interventions for children as well as measurements to test quality and quantity of humor used in clinical pediatric settings.

Data-driven Persona Analysis for Understanding Web Novel Users: Focusing on Quantitative Behavioral Pattern Data (웹소설 사용자 이해를 위한 데이터 기반 페르소나 분석: 정량적 행동 패턴 데이터 중심으로)

  • Ha, Sangjip;Park, Do-Hyung
    • Knowledge Management Research
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    • v.23 no.3
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    • pp.259-284
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    • 2022
  • In order to help the understanding of web novel users, this study was intended to quantitatively verify the user's behavioral types according to the characteristics of web novels. For this purpose, the direction of the study proceeded as follows. First, the motives of web novel users were investigated by referring to the motives of other digital content users. In addition, specific behavioral types of users were also collected. As a result, the motivation for using web novels was found to be 'interpersonal relationships and information acquisition with others', 'leisure activities', and 'escape from reality/relieve tension'. After that, the groups were classified as to whether there was a difference between groups according to the motives of use. As a result, the 'hobbies' type, a group with a particularly high motivation for using leisure activities, the 'stress relief' type, a group with very high escapism and tension relief characteristics, and a group with high interpersonal relationships and information acquisition with others The 'communication' type was classified as a 'multipurpose' type with high overall motivation characteristics. Then, in order to find out the specific characteristics between the types, personas were constructed based on the different behavior type data. Through this, the theoretical contribution of this study is meaningful in that it revealed the motives of web novel users. As a practical contribution, the persona was formed by combining the users' motives and behavioral patterns and visualized to be close to the actual representative users. These results are expected to help improve the web novel service by providing useful indicators for actual writers, platform managers, and users.

Eating habits, obesity related behaviors, and effects of Danhak exercise in elderly Koreans

  • Ha, Ae-Wha;Kim, Jong-Hyun;Shin, Dong-Joo;Choi, Dal-Woong;Park, Soo-Jin;Kang, Nam-E;Kim, Young-Soon
    • Nutrition Research and Practice
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    • v.4 no.4
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    • pp.295-302
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    • 2010
  • The aims of this study were to evaluate obesity-related dietary behaviors and to determine long-term exercise effects on obesity and blood lipid profiles in elderly Korean subjects. A total of 120 subjects, aged 60-75 yr, were recruited, and obesity-related dietary behaviors were determined. An exercise intervention was conducted with 35 qualified elderly females for 6 months, and body composition and blood lipids were measured 6 times at 4 week intervals. At baseline, mean BMI ($kg/m^2$) was 24.8 for males and 23.1 for females. The females had better eating habits than the males and were more concerned with reading nutrition labels on food products (P < 0.001); they also preferred convenience foods less than the male subjects (P < 0.05). Obese individuals were more likely than overweight or normal weight individuals to misperceive their weight (P < 0.001). Those with a high BMI responded feeling more depressed (P < 0.01), lacking self-confidence (P < 0.01), and feeling isolated (P < 0.01) as well as having more difficulty doing outdoor activities (P < 0.01). After exercise, body fat (%) and WHR were significantly reduced (P < 0.05), while body weight and BMI were also decreased without statistical significance. Total cholesterol and blood HDL were significantly improved (207.1 mg/dl vs. 182.6 mg/dl, HDL: 45.6 mg/dl vs. 50.6 mg/dl, P < 0.05). Other benefits obtained from exercise were improvements in self-confidence (26.4%), movement (22.6%), stress-relief (18.9%), and depression (13.2%). In conclusion, elderly females had better eating habits and were more concerned with nutrition information and healthy diets compared to elderly males. However, misperceptions of weight and obesity-related stress tended to be very high in females who were overweight and obese, which can be a barrier to maintain normal weight. Long-term Danhak practice, a traditional Korean exercise, was effective at reducing body fat (%) and abdominal obesity, and improved lipid profiles, self-confidence, and stress.