• Journal of the Ergonomics Society of Korea
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• v.34 no.3
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• pp.279-291
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• 2015

Objective: The purpose of the study is to evaluate appropriate weight for aged farmers in manually handling livestock feed in bags using ergonomic methods. Background: In the livestock industry in South Korea, despite the trend of aging of labor manpower, heavy items are still manually handled in many farms. In particular, among stockbreeding works, the handling of feed in bags weighing 25~30kg is reported as a cause of frequent injuries and musculoskeletal system diseases. However, studies on the standard for recommended weight allowed considering the physical characteristics of aged farmers older than 60 years with greatly decreased physical strength and muscle strength are insufficient. Method: To evaluate appropriate weight for handling of heavy livestock feed in bags, physical techniques for measuring recognized levels of physical work loads, the NLE (NIOSH lifting equation) a method that is an observation type technique, and an ergonomic modeling technique to predict compressive force imposed on L5/S1 were used. Subjects who participated in the experiment were organized into two groups of males/females with mean age exceeding 60 years, and lifting tasks were evaluated for nine weight levels. Results: Based on the results of psychophysical measurement, females showed a tendency of more drastic increases compared to males when weight was over 19kg. The results of estimation of regression models for the weight, 18.0 kg ($r^2=0.97$) and 15.3kg ($r^2=0.97$) were evaluated as stable load for males and females, respectively. In addition, both the observation type evaluation and ergonomic model evaluation showed stable loads in a range of 15~18kg. Conclusion: Given the results of the study, the weight of the feed in bags currently distributed to farms can become a cause of not only overexertion but also farm work related disasters such as musculoskeletal disorders and safety accidents. Providing livestock feed in bags weighing not more than 19kg for aged farmers is judged desirable, and managerial improvement for this matter is considered necessary. Application: The results of the present study can be utilized as useful data for institutional improvement of the weight of livestock feed in bags.

• The Korean Fashion and Textile Research Journal
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• v.11 no.4
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• pp.621-632
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• 2009

The purpose of this study was to analyze the physical characteristic of the wheelchair users by directly measuring the disabled men who use a wheelchair and to classify body types. The subjects were 178 male wheelchair users 20-69 years range of age. The results of this study were as follows. The cause of disability was classified into four groups; Poliomyelitis(P), Spinal Cord Injury(S), Cerebral Palsy(C), Amputee(A). There was a remarkable difference in the physical characteristic of the wheelchair users due to their cause of disability. A have greater values in all the dimensions. P have the largest drop values and smaller values in the lower body dimensions. S have greater values in the height of upper body trunk, back interscye length, and chest circumference, whereas smaller values in waist front length and thigh circumference. C have smaller values in most body dimensions except circumference of lower limb. By the factor analysis on the anthropometric data came out the result to be eight factors. The result of cluster analysis using factor scores shows the body types of wheelchair users can be divided into four body types; PY, RBB, TBP, RA. PY type is short and has the largest drop values, whereas RBB type tends to have the smallest drop values. TBP type is tall and the torso tends to be larger than those of the other types. RA type has smaller values in front body dimensions and moderate values in other dimensions. The diversity in body types should be considered among the wheelchair users.

• KIISE Transactions on Computing Practices
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• v.22 no.9
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• pp.473-478
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• 2016

Server virtualization provides abstraction of physical resources to users and thus accomplishes high resource utilization and flexibility. However, the characteristics of server virtualization, such as the limited number of physical resources shared by virtual machines, can cause problems, mainly performance interference. The performance interference is caused by the fact that the CPU scheduler running on the host operating system schedules virtual machines without considering the characteristics of the virtual machine's internal process. To address performance interference, a number of research activities to improve performance interference have been conducted, but do not deal with the fundamental analysis of performance interference. In this paper, in order to analyze the cause of performance interference, we carry out profiling in a variety of scenarios in a virtualized environment based on KVM. As a result, we analyze the phenomenon of the performance interference in terms of CPU scheduling and propose an efficient scheduling solution.

• Journal of Sasang Constitution and Immune Medicine
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• v.21 no.1
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• pp.44-52
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• 2009

1. Objectives Jeong-Jo's death has many mistery. So we understand rightly Jeong-Jo's death. we inspect closely medical records of 20 days before death(in The Annals of the Choson Dynasty(朝鮮王朝實錄), Hong Je Jun Se(弘齋全書)， GukSoBoGam(國朝寶鑑). We understand medical treatment before death. It is based on Jeong-Jo's Constitution. So we trace the cause of a Jeong-Jo's death rightly. 2. Methods According to The Annals of the Choson Dynasty(朝鮮王朝實錄), Hong Je Jun Se(弘齋全書) GukSoBoGam(國朝寶鑑). We found out Jeoung-Jo's Sasang constitutional elemet. We point on Jeoung-Jo's nature and emotion, temperament and talent, features and way of speaking, physical appearance, healthy state, ordinary symptom, pathological syndromes and pharmacology. so documentary records was worthy of notice. 3. Results and conclusions 1. Jeong-Jo has prominent cheekbones,flat face. It belong to Tae-eum. 2. Jeong-Jo's physical appearance is mild,around,large. It belong ro Tae-eum. 3. Jeong-Jo's favorite food and herb were belong to Tae-eum interior febrile disease herb. which is Exhale Dispersing Qi 4. So even though Jeoung-Jo is Tae-eum, He had a weak body. It main cause that Smoking, insomnia, heave work, Hwa disease. 5. Jeong-Jo's is Interior febrile disease induced form the liver affected by heat in Tae-eumin

• Korean Journal of Veterinary Service
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• v.30 no.3
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• pp.467-472
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• 2007

Eurasian black vulture (Aegypius monachus) belongs to family Accipitridae and is a raptor preying small birds and mammals. It is a wintering bird residing from the mid of November to the late of March in Korea. Although Eurasian black vulture population wintering at Korea is gradually increased, the efficient rescue and treatment for injured Eurasian black vultures are still problematic, due to lack of basic data. Therefore, in this survey, to obtain basic resources for establishing more efficient rescue system, we surveyed the number of Eurasian black vultures wintering at Gangwon province, wintering ecology and injury state of Eurasian black vulture. Survey area was Togyo reservoir at Cheorwon, Seonan basin at Yangoo and Wolsong reservoir at Chuncheon from November 2004 to March 2005. From 12 rescued Eurasian black vultures, physical examination, total plasma protein (TPP) and packed cell volume (PCV) were measured. To survey injury state of Eurasian black vultures wintering at Gangwon province, we surveyed the cause, morbidity and mortality from 103 Eurasian black vultures, based on medical records from animal rescue teams. The number of eurasian black vultures were gradually increased from November, peaked at Feburary, then steeply decreased at March. Eurasian black vultures showed the most vigorous activity around 1 PM within a day. In physical examination, mean body weight was $9.6{\pm}1.22kg$, body length was $1130{\pm}45.4mm$. No statistically significant difference in body weight and length between male and female eurasian black vultures was observed. Mean PCV was $40.2{\pm}2.7%$, while mean TPP was $5.86{\pm}0.8mg/dl$. The most common cause of injury and mortality was intoxication, while that of morbidity was fatigue.

• Journal of the Korean Applied Science and Technology
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• v.37 no.3
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• pp.625-634
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• 2020

The purpose of this study is not only to define and cause of sarcopenia and frailty due to aging, but also to explore prevention and delay through regular exercise and right nutrition. Sarcopenia and frailty are known to cause frailty, cachexia, osteoporosis, metabolic syndrome and early death due to decreased muscle mass and muscle function caused by aging. The two disease were related to nervous system damage and lack of protein synthesis within the muscles due to the increase in the amount of oxidative stress, and inadequate nutrition and lack of physical activity. It also emphasizes the role and importance of right nutrition and physical activity (such as aerobic exercise, resistance movement, etc) to prevent and improve such syndromes. Conclusions, it is in proposing the supply of high-quality protein, including regular exercise, as the most beneficial way to prevent and overcome aging-related sarcopenia and frailty.

• Journal of International Academy of Physical Therapy Research
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• v.3 no.2
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• pp.475-478
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• 2012

The purpose of this study is to identify the level of masseter muscle tension according to the levels of restricted movement and pain in the temporomandibular joint(TMJ), thereby verifying the fact that excessive masseter muscle tension can be a cause for restricted movement and pain in the TMJ. The subjects of this study were 81 men and women in their 20s and 30s, who feel uncomfortable with their masticatory function on the preferred chewing side. The subjects were measured in terms of the range of motion (ROM) and deviation of the TMJ and the degree of pain in the affected region. The ROM and deviation of the TMJ were measured using the Global Posture System(GPS) after instructing each subject to open his/her mouth to the fullest and taking photos of the subject with a digital camera. The tension of the masseter muscle was measured with a Pressure Threshold Meter(PTM). After the measurements, in order to compare the ROM of the TMJ, the subjects were divided into two groups based on the ROM of above 35mm and below 35mm. For the deviation and pain, based on the average of total subjects, the subjects were divided into two groups of above and below average. Thereafter, the levels of masseter muscle tension were compared between each pair of groups. According to the results, when each variable was compared between the respective two groups, in terms of the deviation, the pressure pain threshold(PPT) of the masseter muscle revealed a statistically significant difference(p<.05). However, the ROM and pain showed no statistically significant difference. Consequently, masseter muscle tension may cause restricted movement in the TMJ. In particular, the deviation and tension in the masseter muscle is considered to be a factor that causes deviation in the TMJ.

• Journal of Haehwa Medicine
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• v.16 no.2
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• pp.87-98
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• 2007

Generally, mind-body medicine is the field of studying neurose or diseases induced to body by psychological cause in a broad sense. It is said that, by definition, the medicine means the field of medicine with psychosomatic disease as its main object of research, and that it aims at utilizing the study of the relationship between mind and diseases to diagnoses and therapy of many physical diseases. Oriental medicine, the mind is classified into 'O-shin'(五神, five minds) and 'Chil-chung'(七情, seven mental states). O-shin are related to the five viscera each other. The liver contains the soul, the heart does the mind, the spleen does the consciousness, the lungs do the spirit and the kidneys do the will Chil-chung are seven mental states such as joy(喜), rage(怒), anxiety(憂), thinking(思), sorrow(悲), fear(恐) and horror(驚). If these Chil-chung are excessive, they induce physical diseases by hurting the five viscera as well as they cause mental problems. In oriental medicine, five mental is a concept for understanding of man's mental structure. Spirit and body is inseparable relation in oriental medicine. Function of spirit and body is regarded as one in oriental medical physiology. Spirit is the essence of a function which an organism reveal, and it is regarded in the same with life. For this reason, identification spirit with life is special feature of oriental medicine.

• Journal of Preventive Medicine and Public Health
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• v.44 no.6
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• pp.242-248
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• 2011

Objectives: Busan is reported to have the highest mortality rate among 16 provinces in Korea, as well as considerable health inequality across its districts. This study sought to examine overall and cause-specific mortality and deprivation at the town level in Busan, thereby identifying towns and causes of deaths to be targeted for improving overall health and alleviating health inequality. Methods: Standardized mortality ratios (SMRs) for all-cause and four specific leading causes of death were calculated at the town level in Busan for the years 2005 through 2008. To construct a deprivation index, principal components and factor analysis were adopted, using 10% sample data from the 2005 census. Geographic information system (GIS) mapping techniques were applied to compare spatial distributions between the deprivation index and SMRs. We fitted the Gaussian conditional autoregressive model (CAR) to estimate the relative risks of mortality by deprivation level, controlling for both the heterogeneity effect and spatial autocorrelation. Results: The SMRs of towns in Busan averaged 100.3, ranging from 70.7 to 139.8. In old inner cities and towns reclaimed for replaced households, the deprivation index and SMRs were relatively high. CAR modeling showed that gaps in SMRs for heart disease, cerebrovascular disease, and physical injury were particularly high. Conclusions: Our findings indicate that more deprived towns are likely to have higher mortality, in particular from cardiovascular disease and physical injury. To improve overall health status and address health inequality, such deprived towns should be targeted.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.3
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• pp.408-417
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• 2017

The objective of this study is to examine the structural relations between physical self-efficacy, depression, and ego-integrity among the elderly (60 years and older) currently participating in leisure sports. In addition, since the variables affecting ego integrity are presented in a multidimensional manner, it is very important to examine the cause and effect of the variables from an integrated perspective. To achieve this objective, 427 senior citizens attending the leisure sports program of a seniors center were assigned as the research subjects. For the structural equation modeling performed in the study, confirmatory factor analysis and reliability analysis were conducted for each variable, and direct, indirect, and total effects were estimated. The model fit is based on TLI, CFI, and RMSEA, and both the fit of the measurement model and the fit of the research model satisfy the criterion. The results of the analysis are as follows. First, in the results of verifying the validity and reliability of the questionnaire, all the variables of physical self-efficacy, depression, and ego-integrity were suitable. Second, the perceived physical ability had positive effects on depression, current life satisfaction, wise life, and attitude toward life, whereas the physical self-expression confidence had positive effects on current life satisfaction and attitude toward life, but negative effects on acceptance of the past life. Lastly, depression had negative effects on current life satisfaction. The results showed that the elderly identified the integrated relationship of physical self - efficacy, depression, and self-integration.