• The Journal of the Korea Contents Association
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• v.11 no.6
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• pp.270-278
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• 2011

The purpose of this study was to compare acute and chronic LBP patient in twenties and forties, respectively by size measure paraspinal muscle (cross-sectional area; CSA). CSA of paraspinal muscle (psoas, multifidus, erector muscle) size was measured by free-handling technique of the picture archiving and communication system(PACS) using MRI at the level(lower end-plate of L4) in twenties(9 males, 10 females) and forties(9 males, 8 females) in acute and chronic LBP patient. The results of this study showed no significantly difference between acute and chronic LBP (p>0.05) in twenties patients. However, there was significant difference between acute and chronic LBP (p<0.05) in forties patients. Also, there was significant difference in paraspinal muscle CSA between chronic LBP patients in twenties and chronic LBP patients in forties (p<0.05). This study showed that paraspinal muscle atrophy was observed in forties with various cause, but Not chronic LBP patients in twenties. Accordingly it is required for chronic LBP patients in forties to minimize trunk muscle atrophy through immediate back muscle dynamic exercise and early functional activity.

• The Journal of the Korea Contents Association
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• v.14 no.9
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• pp.203-217
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• 2014

This study is performed to verify the relationship between Korean's anniversary days and meals. To do so, three steps are carried out. First, literature review and mini focus group interview are performed to list up important anniversary days in our culture. Second, anniversary orientation scale(22 items) is developed. Third, a survey(n=486) is implemented to identify the relationship among demographic variables such as sex, age, and perceived economic level, psychological ariables such as self-esteem, life satisfaction, depression, individuality-relatedness, interpersonal sensitivity, materialism as a value and perceived social support, and meal frequency. The results are as follows: Female is significantly higher than male in anniversary orientation. And younger people(20~39 years old) are significantly higher than older people(over 40ties) in anniversary orientation. The higher life satisfaction, perceived social support, relatedness, interpersonal sensitivity, and materialism are, the higher anniversary orientation is. Lastly, middle and high anniversary orientation groups showed more meal frequency at the anniversary day than low anniversary orientation group.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.2
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• pp.195-209
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• 2014

This study aimed to identify the preferred jeans design and needed improvements through survey research aimed at men aged 20~29. In order to identify the current wearing trends and problems of jeans, the study carried out survey research aimed at men in their twenties who had purchased and worn jeans. As a result of survey research aimed at consumers, it was discovered that fit was deemed most important during the purchase of jeans. As to the question which type of slacks was worn most frequently, the answer was slim type jeans. Regarding body parts that became the selection standard during the purchase of jeans, the answer was thigh and waist. The body parts that showed the lowest assessment result appeared to be thigh circumference, waist measurement, slacks length, and slacks bottom. To a question asking about things to be repaired and to be improved, they replied that there were problems in measurement fit, dissatisfaction with materials, and washing and management.

• The Journal of the Korean life insurance medical association
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• v.19
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• pp.109-117
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• 2000

연구배경 : 3대 특정질병 진단보험금지급의 양상과 경향을 평가하고자 하였다. 방법 : 1997년 7월${\sim}$1999년 3월까지 당사의 한 건강보험가입자 중 1998년 1월${\sim}$1999년 9월 기간동안 당사 약관상의 정의에 의한 악성종양, 급성심근경색증, 뇌졸중으로 진단보험금이 지불된 총 411건에 대해 조사하였다. 결과 : 3대 특정질병 진단보험금 지급건 총 411건의 구성을 보면 악성종양이 290건(70.6%), 급성심근경색이 25건(6.1%) 그리고 뇌졸중이 96건(23.3%)이었다. 남녀비율은 남자 280건(68.1%), 여자 131건(31.9%)이었다. 3대 특정질병 진단급여금 지급건의 평균연령은 $3.88{\pm}5.9$이었다. 3대 특정질병 진단보험금 지불건은 $30{\sim}39$세 연령대에서 187건(45.4%)으로 가장 많았고, 그 다음으로 $40{\sim}49$세 연령대 178건(43.2%)의 순이었다. 계약시점에서 3대 특정질병 진단보험금 지급 시까지 평균진단확정 기간은 325.2일${\pm}$184.9일 이었다. 계약 후 12개월 내에 진단지급보험금 발생건은 총 193건(55.3%)이었고, 12개월 이후에 지급된 건은 156건(44.7%)이었다. 계약 후 12개월 내에 진단지금보험금 발생건 193건을 분석하여 보면 3개월 이상${\sim}$4개월 미만이 40건(20.7%)로 가장 많았다. 악성종양의 신체계통별로 보면 소화기관>유방>여자생식기>호흡기계 순이었다. 악성종양을 장기별로 보면 위암>유방암>간암 및 담도계암>결장암과 직장암, 자궁경부암의 순이었다. 남자의 경우 위암>간암 및 담도계암>결장암과 직장암의 순이었고 여자의 경우 유방암>자궁경부암(상피내암 제외)>결장암, 직장암의 순이었다. 뇌졸중의 종류별 빈도를 보면 뇌경색증(47.9%)>뇌내출혈(34.4%)>거미막하출혈(9.4%)의 순이었다. 결론 : 3대 특정질병 중 악성종양이 다수를 차지하고 있었고, 남자가 여자보다 훨씬 많았고 주로 $30{\sim}39$세 연령대, $40{\sim}49$세 연령대였다. 계약 후 12개월 내에 진단지급보험금 발생건을 분석하여 보면 3개월 이상${\sim}$4개월 미만이 40건(20.7%)으로 가장 많았다는 것은 역선택의 가능성 그리고 제척기간 중 발생한 3대 특정질환이 3개월 이후 특히 3개월 이상${\sim}$4개월 미만 사이에 지급청구되었을 가능성을 시사하는 것으로 사료된다.

• Journal of dental hygiene science
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• v.7 no.3
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• pp.141-146
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• 2007

A questionnaire survey of patients for practical training of dental hygiene department of E college was conducted from August 28th 2006 to December 8th 2006. Before scaling, the purpose of the study and the questionnaires were fully explained and the patients were requested to complete the questions personally. The survey were conducted under their consent and 256 copies were collected and used for the analysis. The survey shows the patients' habit for oral health care according to the gender and age and their standards for the quality of life. 1. For gender, male occupied 117(45.7%) and female occupied 139(54.3%). For age, 158 of the patients were in their twenties(61.7%) and 60 of them were aged from 10 to 19(23,4%). 16 patients were aged from 40 to 49(6.3%) and 11 patients were aged from 30 to 39(4.3%) and the number of patients who are older than 50 was 11(4.3%). 2. For the mouth health care, according to gender, 37.6% of male answered that they had scaling and 46.8% of female patients answered that they had scaling experiences. Without distinction of gender, most patients answered they brushed their teeth twice a day. For 91.5% of male patients and 89.9% of female patients answered that they brushed their teeth after meals. Also, 41% of male patients and 53.2% of female patients use rolling method. For using mouth aids, 68.4% of male patients and 65.5% of female patients do not use any aids. 3. For brushing way, most teenagers and patients in their twenties use rolling method and patients older than thirty use vertical and horizontal method. The frequency of brushing shows that most of the respondents brush their teeth twice a day after meals. 4. The standard of quality of life according to gender, under 'clear pronunciation' head, male patients mark 4.42 points and female patients mark 4.17 points. Under 'every day going out' head, male patients mark 4.53 points and female patients mark 4.29 points. Under 'maintenance of emotion' male patients mark 4.27 points and female patients mark 4.27 points. 5. The standard of quality of life according to age, teenage patients show 4.28 points under 'having meals' and under 'clear pronunciation' head, patients in their forties mark 4.44 points. Under 'keeping teeth or denture clean' head, patients in their thirties mark 4.55 points. Patients in their fifties show the lowest grades in most questionnaires.

• 건강소식
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• v.36 no.2
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• pp.20-22
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• 2012

응급실에 30대 젊은 남자가 숨차다고 방문하였다. 흉부방사선 검사에서 검게 보여야 할 오른쪽 폐가 하얗다. 물이 차서 보이는 현상이라 단순하게 폐렴인가? 결핵인가? 정밀검사를 하였다. 흉부컴퓨터 단층촬영, 오른쪽 폐에 덩이가 보이고 물이 차있다. 기관지 내시경 검사를 하고 고인 물을 뽑았다. 핏물이다. 암이 강력히 의심된다. 너무 젊다. 자세한 병력 청취에서 15세부터 흡연을 시작했다고 한다. 보건복지부 중앙 암 등록본부의 자료에 의하면 우리나라 2008년 통계에서 평균 수명으로 계산하였을 때 30% 정도는 암이 발생한다고 보고되고 있다. 그 중 폐암은 남자에게서 위암 다음으로 많은 빈도를 차지하고, 여자에게는 다섯 번째이다.

• Journal of Life Science
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• v.29 no.1
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• pp.45-51
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• 2019

This study is to investigate the effects of the physical activity and intake of improved food levels on male body compositions. Forty men were assigned to a percentage of body fat (PBF) group (20 men with physical exercise and food) and CONTROL group (20 men with exercise, food intake is free) for this six-month study. An aerobic capacity test to measure maximum oxygen consumption ($VO_2$ max) was performed to precisely determine the exercise intensities during the experimental conditions. After exercise and food control, the body weight of 20s with exercise and food (A) and only exercise (B) decreased about 2.3 kg and 0.4 kg after 6 months, respectively. If the p-values were 0.697(between baseline and 3 months), 0.535(between 3 months and 6 months), and 0.617(between baseline and 6 months), respectively, then 20s men had evidence of that a significant main effect does not exist amongst the observations of the outcome or within-weights. Their skeletal muscle mass (SMM) of both groups increased slightly through exercise. Although the decrease in total body weight of 30s was correlated with the increase in SMM, there was not shown significant. While total body water decreased in 20s, 40s, and 50s except 30s men, all other values did not shown significant differences. The physical activity and intake of improved food levels were contributed with lost a lot of weight, decrease of SMM and body fat.

• Journal of Labour Economics
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• v.29 no.3
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• pp.25-48
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• 2006

In this study, the wage differentials between standard and non-standard workers are estimated using the data from the Establishment Employment Survey of 2003. The estimated wage differentials between standard and non-standard workers become greater controlling for the fixed effects of establishments. The within-establishment wage differential is estimated to be 20.7% between male standard and male non-standard workers in unorganized establishments controlling for establishment heterogeneity. However, the estimated overall wage differential is reduced to 6.8% due to the high wages of non-standard workers in large size establishments and the low wages of standard workers in small size establishments. This difference between 20.7% and 6.8% reflects the between-establishment wage differential. In organized establishments, the wage differential becomes larger, 21.8%, between male standard and male non-standard workers. For the male workers, the greatest wage differential between standard and non-standard workers is found in unorganized large size establishments: it is 35.9%. In organized establishments, it contracts to 25.8%. The additional estimations on the probability of becoming non-standard workers are done. For the male sample, the probability of standard workers to become non-standard workers in unorganized establishments is 6.0 percentage points higher than that in small size organized establishments. The probability is 20.7 percentage points higher for the female sample. However, the signs of the interaction terms of union and large size establishments are all negative. While the effect of large size establishments reduces the effect of union on the probability to 7.3 percentage points for the males, it reduces the probability to 16.0 percentage points for the females.

• 건강소식
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• v.36 no.9
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• pp.28-29
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• 2012

관절염의 일종인 통풍은 말 그대로 바람만 불어도 아플 정도로 격심한 관절통이 오는 병이다. 주로 혈중 요산치가 높은 중년 이후의 남자에서 많이 발생했지만 최근 들어 20~30대 남성 환자들이 급증하고 있는 추세다. 젊은 연령층 발병이 문제가 되는 것은 통풍이 완치되는 질병이 아니기 때문이다.

• The Journal of the Korea Contents Association
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• v.10 no.6
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• pp.373-377
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• 2010

Numerous quantitative and qualitative studies have already been published related to English vowels. However, only minimal amounts of studies based on the acoustic analysis of Korean vowels have been accomplished. The purpose of this study is to obtain sufficient quantitative data based on the acoustic aspects of Korean vowels produced by males between the ages of 20s and 30s. A total of 31 males in their 20s and 30s produced the five fundamental vowels /a, e, i, o, u/ by repeating each of them three times in the standard Korean dialect. Such speech productions were recorded with 'Cool edit' and F1, F2, F3, F4 were extracted through the MATLAB acoustic analysis program. Results indicated that the overall patterns of formants were similar to previous studies, except that the formant levels of F1 and F2 of the vowels produced in this study were generally lower than that in previous studies. Future studies need to focus on obtaining vowel data by considering other factors such as age and other speech materials.