• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.11 no.2
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• pp.101-111
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• 2016

Startup has lot of limitation such as time and budget shortage, and few human resources, and may be under the very stressful condition. Naturally in these context, there is always conflict among the startup team members, but the impact of conflict on teamwork or team performance has not been empirically tested. This study examines the relationship among the conflict, teamwork and team performance in startup context. Different two types of conflict and four factors of teamwork for team performance are identified from a literature review and tested; task conflict and relationship conflict as antecedents, teamwork was composed of communication, collaboration, coordination and cohesion, leading to team performance. 142 data points were collected from startup representatives to test these hypotheses. PLS data analysis indicated that the task conflict positively effects on all teamwork factors, but relationship conflict has statistically significant effect on only two teamwork factors, collaboration and coordination in negative relationship. Teamwork factors effects on team performance except communication. Based on the results, we proposed practically several team management skills for startup managers, leaders and even members, and explained theoretical contributions.

• Journal of the Korean Society of Food Culture
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• v.13 no.4
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• pp.327-337
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• 1998

A Survey was carried out to investigate relation between depressive trends, stress and attitudes of food intake in adults. In the assessing of Body Mass Index (BMI), the normal weight was 80.1%, overweight was 19.1%, obese was 0.7% in men, but normal weight was 90.3%, overweight was 9.4%, obese was 0.3% in women (p<0.001). It was represented increasing trends of obesity by the increasing of ages. Women thought their health condition was worse than men (p<0.001) 15.1% of all women tried to weight control. In changes of food intake by stress, 37.8% was increased to eat, 33.7% was reduced in women. It seems that women was significantly influenced by stress than men (p<0.01). In changes of food intake by stress in ages, 39.7% was increased of 20 years but over the 30 years was decreased or no changes of food intake (p<0.0001). All subjects wanted hot and sweet taste when stress-induced eating. 56.1% of men preferred to alcohol and beverages but 33.5% of women preferred to chocolate, cookies and breads of carbohydrate foods at the stressful conditions. But stress-induced eating dose not seems to be helpful for coping with stress in adults. In the distribution of depressive trends, the level of depression was higher in women (50.7%), whereas 34.3% in men (p<0.001). The most of 3li subjects represented attitudes of food intake below 60 scores that was needed improve and counseling of professional nutritionist. It was represented inferior to attitudes of food intake by the increasing of depressive trends and stress in women. It was higher level of overweight and obese in the below 60 scores of attitudes of food intake and higher depressive groups.

• Journal of Physiology & Pathology in Korean Medicine
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• v.17 no.6
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• pp.1533-1537
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• 2003

This double-blind randomized clinical trial was performed to evaluate the anti-anxiety, anti-stress effect of a modified formula WS-01 consisted with several herbs(Jujubae Fructus. Longanae Arillus. Poria Cocos) and germinated rice. The extract of the formula was administered (p.o) to 24 students and placebo was to 23 students for 4 weeks. STAI-KYZ(Hahn. Hakjisa), ABR2000(Meridian, Korea), CBC, LFT, U/A were checked before and after the administration period. There was no difference between the STAI score of WS-01 and that of placebo group in first test. But the STAI state anxiety score was 5.33±7.33 reduced in WS-01 group and it was 0.52±6.42 increased in placebo group in second test. this result was significant stastically. 10 students in WS-01 group showed improving result, but only 1 student in placebo group showed improving result of ABR2000 test. The result of ABR2000 was analyzed with curve 2, Regulation 2, and graph 1,2,3, because those reflect central nerve system and stressful condition of the body. There was no significant result in first and second CBC, LFT, Urine test. The results of this clinical study suggest that WS-01 has anti-anxiety, anti-stress effect, and it could be applied to various conditions or disorders related with anxiety and stress.

• Journal of Korean Society on Water Environment
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• v.26 no.5
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• pp.768-774
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• 2010

This study was conducted to provide a technical solution to treat effectively perchlorate from inorganic wastewater of zinc smelting. Despite an inhibition dissolved inorganic substances in the wastewater discharged from zinc smelting has demonstrated with the activity of microbes, biological treatment technology could reduce perchlorate to a satisfactory level under such stressful conditions. It was found that either conductivity or $SO{_4}^{2-}$ concentration of the wastewater was able to be used as the adequate index and the values were $2,450{\mu}S/cm$ and 1,200 ppm respectively. When $SO{_4}^{2-}$ increased from 0 to 16,000 ppm (conductivity : $428{\rightarrow}24,800{\mu}S/cm$), perchlorate biodegradation rate was reduced due to 1/10 times from 0.0365 to 0.0033/h, however, most of perchlorate was removed under the condition of hydraulic retention time (HRT) at 0.5day and mixed liquor volatile suspended solid (MLVSS) at 2,000 ~ 3,000 ppm.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.15 no.2
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• pp.127-140
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• 2011

Objectives: Acupuncture has been shown to relieve pain and modulate biological function by stimulating the organ-specific meridians and enhances parasympathetic activity and suppresses sympathetic activity. The aim of this review is to summarize and understand the effects of acupuncture on autonomic nervous system. Methods: We reviewed a total of 29 studies published from 2000 to 2010 searched by PueMed and various domestic oriental medicine journals to obtain acupuncture studies related with ANS. Each article was classified by ANS measurement index and reviewed for study objectives, outcomes, acupuncture points, experimental and control interventions. Results: In the study of acupuncture about EEG, HRV, SCR, the experiment results are not the same by acupoints. Although same acupoint the results differ by subject's condition. But the study showed some clear tendency. In brief, in normal states acupuncture enhanced either vagal or sympathetic tone depending on the stimulated acupuncture point sites. On the other hand, most of studies demonstrated that acupuncture restored the autonomic dysfunctions in various kinds of tired or stressful states. Conclusions: We reviewed studies that contributed to an understanding of the effects and mechanisms of acupuncture on autonomic nervous system. Although the relationship between acupuncture and ANS response is still uncertain, acupuncture could be a excellent treatment method for modulating autonomic dysfunction.

• Asian-Australasian Journal of Animal Sciences
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• v.25 no.5
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• pp.674-681
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• 2012

Two experiments were conducted to investigate the effects of supplemental glutamine on growth performance, plasma parameters and LPS-induced immune response of weaned barrows after castration. In experiment 1, forty-eight weaned male piglets were used and fed maize and soybean meal diets supplemented with 0 (Control) or 2% L-Gln (Gln+) for 25 days. The results indicated that the Gln+ group tended to increase average daily gain compared to control in stages of days 7 to 14 and 0 to 25. The Gln+ had significantly better feed efficiency than the control group did during days 14 to 25 and 0 to 25. The plasma blood urea nitrogen and alkaline phosphatase contents of Gln+ group were higher than those of the control group on day 14 post-weaning. In experiment 2, sixteen weaned male piglets were injected with E. coli K88+ lipopolysaccharide (LPS) on day 14 post-weaning. The results showed that the Gln+ group had lower concentrations of plasma adrenocorticotrophic hormone and cortisol than the control group on day 14 pre-LPS challenge. In addition, Gln+ group had higher plasma IgG concentration than the control group for pre- or post-LPS challenged on day 14 post-weaning. In summary, dietary supplementation of Gln was able to alleviate the stressful condition and inflammation associated with castration in weaned barrows, and to improve their immunity and growth performance in the early starter stage.

• Clinical and Experimental Reproductive Medicine
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• v.41 no.3
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• pp.125-131
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• 2014

Objective: Under estrogen deficiency, blastocysts cannot initiate implantation and enter dormancy. Dormant blastocysts live longer in utero than normal blastocysts, and autophagy has been suggested as a mechanism underlying the sustained survival of dormant blastocysts during delayed implantation. Autophagy is a cellular degradation pathway and a central component of the integrated stress response. Reactive oxygen species (ROS) are produced within cells during normal metabolism, but their levels increase dramatically under stressful conditions. We investigated whether heightened autophagy in dormant blastocysts is associated with the increased oxidative stress under the unfavorable condition of delayed implantation. Methods: To visualize ROS production, day 8 (short-term dormancy) and day 20 (long-term dormancy) dormant blastocysts were loaded with $1-{\mu}M$ 5-(and-6)-chloromethyl-2', 7'-dichlorodihydrofluorescein diacetate, acetyl ester (CM-$H_2DCFDA$). To block autophagic activation, 3-methyladenine (3-MA) and wortmannin were used in vivo and in vitro, respectively. Results: We observed that ROS production was not significantly affected by the status of dormancy; in other words, both dormant and activated blastocysts showed high levels of ROS. However, ROS production was higher in the dormant blastocysts of the long-term dormancy group than in those of the short-term group. The addition of wortmannin to dormant blastocysts in vitro and 3-MA injection in vivo significantly increased ROS production in the short-term dormant blastocysts. In the long-term dormant blastocysts, ROS levels were not significantly affected by the treatment of the autophagy inhibitor. Conclusion: During delayed implantation, heightened autophagy in dormant blastocysts may be operative as a potential mechanism to reduce oxidative stress. Further, ROS may be one of the potential causes of compromised developmental competence of long-term dormant blastocysts after implantation.

• Asian-Australasian Journal of Animal Sciences
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• v.14 no.2
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• pp.189-192
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• 2001

This study was initiated in an effort to determine the normal mean and variations of the somatic cell count (SCC) in milk of buffaloes as influenced by the milking time, stage of lactation, parity and season. The buffaloes were hand milked at 13 and 11 h. interval during evening and morning respectively. On the day of milk sampling the udders were tested for mastitis by California Mastitis Test (CMT). Only those buffaloes, which were found negative in the CMT, were included in the sampling plan. The mean values for morning and evening were 1.09 (range 0.39-1.76) and $0.97(range\;0.57-2.46){\times}10^5cells/ml$, respectively which did not differ significantly. When data of the morning and evening values was compared on the basis of total cell secretion in milk, even then there was no statistical difference between the morning and the evening values, thereby suggesting that no diurnal variation existed in SCC of milk. Paritywise differences were not significant between the 1st to 5th lactation and above. Similarly stage of lactation effect, when tested at 30 day intervals, did not differ significantly. Significant (p<0.05) correlation coefficients (r) between SCC and milk yield during different stages of lactation and parity suggested that SCC per ml of milk was higher during the later stages of lactation. SCC was higher in primiparous than in multiparous buffaloes. On an average the SCC recorded was $1.0{\times}10^5cells/ml$ of milk irrespective of time of milking, parity and stages of lactation. The SCC was low during cold and hot-dry season but were high during the hot-humid season (p<0.05), the respective values being 0.76, 1.08 and $1.35{\times}10^5cells/ml$. These values were lower than the SCC already reported in cows suggesting less stressful condition of the udder of buffaloes in this study.

• Korean Journal of Adult Nursing
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• v.28 no.6
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• pp.701-708
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• 2016

Purpose: This study investigated Korean women in between age 30 to 60 who were obese or overweight in order to explore their self-perception based on lifetime phase. Methods: Focus group interviews were performed four times with six to eight participants in each group (a total of 27). Data were analyzed using inductive thematic analysis. Results: The data analysis from the interviews revealed recurring common themes: heavy heart, heavy body, resigned acceptance of their own condition, and compromise. The study also found that each age group had different concerns: concerning others' gaze on their obese appearances (30s), realizing their aging obese appearances (40s), recognizing red flags of their health with obesity (50s), and becoming ambivalent about their obese appearances (60s). Overall, their perceptions of being overweight were negative and stressful. Women in their 30s and 40s were more interested in their appearances, and thus were more obsessive about weight gain. In contrast, women in their 50s and 60s were more accepting of their physical appearances, and thus were more concerned about living healthy than losing weight. Conclusion: These results may be useful to consider when developing tailored weight-control programs for obese and overweight Korean women. Additionally, strategic approaches for successful and effective programs targeting healthy weight should be based on better understanding about women's self-perceptions and motivations.

• Safety and Health at Work
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• v.6 no.4
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• pp.289-294
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• 2015

Background: The type of payment is one of the important factors that has an effect on the health of employees, as a basic working condition. In the conventional research field of occupational safety and health, only the physical, chemical, biological, and ergonomic factors are treated as the main hazardous factors. Managerial factors and basic working conditions such as working hours and the type of payment are neglected. This paper aimed to investigate the association of the type of payment and the exposure to the various hazardous factors as an heuristic study. Methods: The third Korean Working Conditions Survey (KWCS) by the Occupational Safety and Health Research Institute in 2011 was used for this study. Among the total sample of 50,032 economically active persons, 34,788 employees were considered for analysis. This study examined the relation between the three types of payment such as basic fixed salary and wage, piece rate, and extra payment for bad and dangerous working conditions and exposure to hazardous factors like vibration, noise, temperature, chemical contact, and working at very high speeds. Multivariate regression analysis was used to measure the effect of the type of payment on working hours exposed to hazards. Results: The result showed that the proportion of employees with a basic fixed salary was 94.5%, the proportion with piece rates was 38.6%, and the proportion who received extra payment for hazardous working conditions was 11.7%. Conclusion: The piece rate was associated with exposure to working with tight deadlines and stressful jobs. This study had some limitations because KWCS was a cross-sectional survey.