This study identified heart response of participants while listening to sounds which have 1/f fluctuations with exponent ${\alpha}$ gradient. The participants were engaged in emotional stress work. Prior studies related to 1/f fluctuation sound have reported that sound source can alleviate psychological and physiological state of users. Subjects of this study were exposed to sound with three levels of ${\alpha}$ gradient. Heart response of subjects were measured with Photoplethysmography(PPG) sensor simultaneously. The dependent variables of this study were beat per minute(BPM), very low frequency percent of pulse rate variability (VLF percent), the standard deviation of all normal RR intervals (SDNN), and high frequency power(HF power). Subject showed arousal response when exposed to sound with exponent ${\alpha}$ gradient of 3 whereas the sound with exponent ${\alpha}$ gradient of 1 and 2 resulted in relax effect. The characteristic of 1/f fluctuation sounds can be applied to alleviate stress for employers under emotional labor.
Journal of Korean Society of Occupational and Environmental Hygiene
/
v.4
no.2
/
pp.180-188
/
1994
This study was designed to investigate qualitatively whether respirators now being used in workplaces tit workers iflfaces well or not. Leak sites were determined after exposing the subjects to fluorescent aerosol and were analyzed by gender, brand and manufacturing nation. The results were as follows ; 1. Among those leak sites which were classified into four areas(nose, cheek, lip and chin), test aerosol was mostly deposited on the nose and the cheek areas. 2. The mean number of leak sites observed from the female subjects were 2.3 while the number were 2.2 from the male subjects. The most frequently observed leak site was nose and followed by chin, lip and cheek in descending order of frequency. 3. Among different brands of respirators, different leak sites were observed. Test subjects wearing the Sand N brands were more heavily exposed than those of wearing the D and M brands. 4. No significant difference of the number of leak sites were found between Korean-made and American-made masks. However, the most frequent leak site observed for the Korean-made ones was the nose area while it was the chin area for the American-made ones. 5. Analyses of 97 leak sites by shape showed that 27(27.8%) were point types, 54(55.7%) diffuse types and 16(16.5%) streamline types. 6. Test subjects indicated that the facepieces of Korean-made respirators were harder and smaller in size than those of American-made one. The most comfortable respirator selected was the respirator by the N Co. and the most uncomfortable one was the respirator by the D Co. This study suggests that many half-mask respirators now being used in the workplaces may not fit to workers well. Therefore, when selecting respirators, employers are advised to test respirators if they fit to workers well. And manufacturers are recommended to produce effective and comfortable respirators tested qualitatively and quantitatively not only in the laboratory but also in the field.
This paper analyses the proposals contained in the British Government Green Paper, A New Contract for Welfare: Partnership in Pensions for low paid workers and the potential of the new rules to guarantee a decent income in old age. The UK pension system is a partnership between the State(providing the basic state pension and the SERPS), employers(providing occupational pension scheme) and private pension providers(providing personal pensions). Although the system needs to change, this partnership remains the right foundation. However, the pension Green Paper proposes substantial changes to second tier pension provision in the UK. In particular, the Government plans to replace the SERPS with a new State Second Pension. According to the Green Paper, this will result in "dramatically better pension provision for those earning less than ${\pounds}9,000$ a year" and through increased payments to private pension schemes, will also provide "extra help to those on middle incomes(${\pounds}9,000-{\pounds}18,500$ a year). Therefore, it discusses the general principles inherent in the design of the British pension system and analyses the balance of these principles is represented in the Green Paper. The paper then examines how the Government's proposals protect individuals from a means-tested old age. This paper finds that the Green paper's proposals add up to reinventing a new two-stage basic pension. However, two key features of a such a basic pension package are missing- an 'adequate' level of payment and comprehensive entitlement. Because of these missing principles we argue that the Green Paper's proposals incorporate for the low paid. The income from the basic pension and the secondary pension which is so near the means-tested minimum that little is gained in retirement from a lifetime of work and contribution. Indeed, the shift away from collective provision and the emphasis on individual responsibility will reinforce this inequality, so that many poor will continue to experience poverty in later life.
Purpose: This study examined the influence of occupational type and lifestyle habits on the prevalence of metabolic syndrome (MetS) among Korean male workers. Methods: Through secondary analysis of their four-year health examination data, 3,892 subjects were divided into four subgroups according to the presence of MetS now and four years ago. Results: Nineteen percent (n=739) suffered from MetS and these 739 subjects were classified into following occupations: 7.1% were office workers, 17.6% were non-office workers, and 42.2% were drivers. Multiple logistic regression analyses showed that when the data adjusted for age, the predicting factors on the prevalence of MetS were heavy drinking (OR 1.34, 95% CI 1.09~1.64) and the occupation of non-office workers (OR 2.99, 95% CI 2.13~4.18) and drivers (OR 7.97, 95% CI 4.89~10.83) among workers without MetS four years ago. Among workers already with a history of MetS, the predicting factors were less exercise (OR 1.55, 95% CI 1.02~2.35) and drivers (OR 2.21, 95% CI 1.03~2.94). Conclusion: Heavy drinking and less exercise and drivers were reported as influencing factors on the prevalence of MetS by this sample. The findings suggest that employers need to provide their employees with screening and management program for those at risk of MetS.
The Journal of Asian Finance, Economics and Business
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v.7
no.9
/
pp.719-726
/
2020
Education policy is a dynamic process featuring social development trends. The world countries have focused their education program on empowering the learners for future life and work. This paper aims to assess the higher education curriculum based on a survey of 280 students, employers, alumni, and lecturers in both social sciences and natural sciences in Ho Chi Minh City, Vietnam. The fuzzy decision-making method, namely the Fuzzy Extent Analysis Method (F-EAM), was applied to measure the relative weight of each parameter. Seven factors under the curriculum development have been put in the ranking. Input with emphasis on foreign language was the highest priority in curriculum development, given the expected demand of the labor market. Objective and learning outcome and teaching activities ranked second and third, respectively. The traditional triangle of teaching content, methodology, and evaluation and assessment are still proven their roles, but certain modifications have been defined in the advanced curriculum. Teaching facilities had the least weight among the seven dimensions of curriculum development. The findings are helpful for education managers to efficiently allocate scarce resources to reform the curriculum to bridge the undergraduate quality gap between labor supply and demand, meeting the dynamic trends of social development.
The purpose of this study was to analyze in detail the employment characteristics of the elderly over 65 years old and to compare those that have experienced no job change in the last 10 years with another group that have experienced job change at least once in the last 10 years. From the 10th wave data(KLIP), participants who were over 65 years old were chosen and their employment status for the last 10 years was reviewed. The results of this study were as follows: first, the analysis of demographic profiles indicated that householders and elderly couples with low education levels and low socioeconomic status were more likely to be employed compared to others. Second, in terms of work-related characteristics, it was revealed that the elderly who were employed tended to be non-paid workers, employers, and self-employed workers, primarily in the farming, fishing, forestry, and the mining industries, these were the elderly workers who had experienced job change three times or more in the last 10 years. Third, the analysis of economic characteristics indicated that elderly who were employed tended to rely more on private income transfers. Last, when the elderly who had experienced no job change in the last 10 years were compared to the elderly who had experienced job change in the last 10 years, the two groups differed significantly in terms of employment status, type of business, and occupation category.
This study was conducted to evaluate nutritional status of Korean women of child-bearing age. A comparison was made between 113 non-pregnant and 200 pregnant women. Pregnant women of 24-28 weeks of gestation were recruited from prenatal clinic in Seoul. Nonpregnant women were included college students, nurses, office employers, and sales women. General characteristics, anthropometric measurements, dietary intakes, and hematological values were assessed. There was no difference in mean BMI for nonpregnant and pregnant (pre-gravid) women, which were 20.2 kg/m$^2$and 20.6 kg/m$^2$respectively. The pregnant women showed a tendency of better health-caring behavior, evidenced by stop smoking and drinking, and in taking nutrient supplements. The mean intakes of energy, vitamin A, vitamin B$_2$, calcium, and iron did not meet Korean RDA for adult women. In particular, calcium and iron intakes of both nonpregnant and pregnant women were under 60% of the Korean RDA. Judging by MDA score, dietary quality was better in pregnant than in nonpregnant women. Mean serum values of albumin, total cholesterol, LDL-cholesterol, HDL-cholesterol, Hb, IgA, IgG were in normal range. However, more than 13% of the nonpregnant subjects showed mild hypercholesterolemia (cholesterol > 200 mg/dl) and anemia (Hb < 12.0 g/dl) . The percentage of anemia in pregnant women were much higher; the subject with Hb < 11.0 g/dl were approximately 30%. The pregnant subjects showed significantly higher serum concentrations of triglycerides and cholesterol, and significantly lower concentrations of albumin, IgA, and IgG compared to nonpregnant women. Correlation analysis showed that Hb concentrations were correlated with the intakes of iron- and protein- containing foods such as meat and vegetables. This study strongly suggest that iron-deficient anemia is a major nutrition problem in Korean child-bearing women and this condition is correlated with dietary intakes.
The Journal of Korean Institute for Practical Engineering Education
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v.4
no.2
/
pp.144-149
/
2012
This paper reviews the uncovered people of the Korean Employment Insurance System (EIS) and analyzes policy options for minimizing the dead zone of the EIS. There are several policy options such as subsidizing insurance premium to employers and employees of small companies, extending coverage of excluded groups, relaxing qualifications of unemployment benefits and increasing benefit period and level, introducing the unemployment assistance system, introducing the unemployment insurance savings account system, extending coverage to non-wage workers and individualizing package services. According to the survey to the specialists and comparative evaluation criteria, the best policy option to minimize the dead zone of the EIS was to activate individualizing package services of intensive consultation, job place services, tailored vocational training, income support, daycare services, etc. to cure complex employment barriers of job seekers.
Journal of the Korean Operations Research and Management Science Society
/
v.37
no.1
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pp.61-71
/
2012
Other-regarding preferences (such as trust, reciprocity and altruism) between companies, between consumers and retailers, and between employers and employees are integral elements in determining economic performance. Social trust which is a core element of social capital, especially, is known to reduce transaction costs, help solve collective action problems, and contribute to economic, social, and political development. Therefore, social trust has been given a great deal of attention across an array of academic disciplines for its role in promoting cooperation among individuals and groups, and for its positive influence on economic performance. Most studies describe Korea as a low-trust society than Japan or China. To identify the causes of social trust, this paper focuses on differences of social values (perception on competition and wealth accumulation) in 4 countries (Japan, China, Korea, and United States). Based on World Values Survey data, this paper analyzes effects of the social values on social trust. Social trust was measured by degree to which a respondent thinks that most people can be trusted. Perception on competition was measured by the degree to which a respondent thinks that competition is harmful, and perception on wealth accumulation was done by the degree to which a respondent thinks that wealth can grow so there is enough for everyone. The results showed that social trust was affected by perception on competition and wealth accumulation. A respondent showed higher level of social trust when he (or she) perceived positively competition and wealth accumulation. For enhancing social trust in a country, it is not easy to reduce income inequality and corruption which were reported as causes of social trust by previous studies. Compared to them, social values can be changed more easily by various concrete measures like education and mass-media. Differently from previous studies this paper stresses the concrete measures to enhance social trust in a country.
The recent economic crisis started at the end of 1997 has brought about changes in labor market practices. One of them is rapid increase in the ratio of workers with alternative employment arrangement, so-called contingent workers. This type of arrangement, unlike traditional employment arrangement, makes employers properly adjust employment to business cycles and it also makes it possible for employees to solve time and spatial constraints related to labor supply. However, recent experience has revealed its negative characteristics such as lower wage rate, deficient fringe benefits, insufficient job security. Using the data from the first and the second wave of the Korea Labor and Income Panel Survey, this study focuses on change in the tendency of being contingent workers and decomposition of the wage differentials among regular and contingent workers by estimating the switching regression model. Results show that the recent crisis significantly contributed to probabilities of being contingent workers, especially for women, the young, the older, and the lowly educated. Decomposition shows that one quarter or one third of 35% of wage differentials are due to the price effect that the same productive characteristics are differently paid by the types of employment arrangements.
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