• Journal of Nutrition and Health
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• v.34 no.5
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• pp.580-596
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• 2001

This study was performed to assess diet qualities by sexes and ages of adults over thirty years old in Jeon-ju area. Diet survey with one day 24-recall method was used done for 382 subjects(129 males & 253 females). Survey sample was divided into six groups by sex and age groups: male 30-49, male 50-64, male 50-64, male 65-79, female 30-49, female 50-64 and female 65-79 years. Diet quality was assessed by NAR(Nutrient Adequacy Ratio), MAR(Mean Adequacy Ratio), INQ(Index of nutrition quality), KDDS(Koreans Dietary Diversity Score), Meal Balance, DVS(Dietary Variety Score), DQI(Diet Quality Index). The 5-point DQI assessed the important dietary guidelines for Koreans. The averages of energy, protein, P, vitamin B$_1$, vitamin B$_2$, niacin and vitamin C intakes were higher than 70% of RDA. The averages intakes of Ca and vitamin A were very lower than RDA all groups. The averages of MAR were 0.78, 0.81, 0.83 in male 30-49, 50-64, 64-79 years, 0.73, 0.77, 0.71 and in female 30-49, 50-64, 65-79 years, respectively. The averages of MAR in female 30-49 years and female 65-79 years were significantly lower than the averages MAR of male 65-79 years. The averages of Sugars and Beverages intakes were significantly higher in male 30-49 years than others. Animal food intake ratio(% total food intake) in the male 65-79 years(16%) was significantly higher than male 30-49 years(11%). The averages of Nutrition intakes were higher in male compared to female. The subjects who consumed all of the major five food groups were 5% in male 30-49, 17.8% in male 50-64, 25.0% in male 65-79 years, 18.9% in female 30-49, 23.7% in female 50-64, 11.5% in female 65-79 years. The averages of KDDS were 3.5, 3.9, 3.9, 3.8, 3.8, 3.5, respectively. The averages of Meal Balance were 8.6, 9.1, 9.1, 8.3, 8.4, 7.8, respectively. The averages of DVS 20.1, 19.9, 19.9, 20.5, 19.0, 17.2, respectively. The averages of DQI were 1.7, 2.2, 2.1, 2.0, 2.1, 1.7, respectively. 81.8% of the subjects had KDDS scores of 2 to 4 and 87.3% of the subjects has Meal Balance scores 4 to 10. In contrast, 89.8% of the subjects had DQI scores of 0 to 3. In view of these facts there are few who observed the five dietary guidelines for Koreans. There findings suggest that dietary qualities were associated with nutrient intake the relation factors may vary by sex and age of adults over thirty years old in Jeon-ju area. Common problems were lack of Ca, vitamin A and dairy products intakes. Therefore adults over thirty years old in Jeon-ju area need the important nutrient management such as Ca, vitamin A. (Korean J Nutrition 34(5) : 580~596, 2001)

• Korean Journal of Animal Reproduction
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• v.20 no.4
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• pp.443-451
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• 1997

These studies were conducted to determine the sex of preimplantation Hanwoo embryos produced in vitro using polymerase chain reaction(PCR). Y chromosome specific and bovine speicific DNA primers were synthesized and tested for embryo sexing. Bovine IVF embryos were produced in TCM 199 and CR1aa medium, and classified by developmental stages on Day 7 to 9. The effects of developmental rates to bovine IVF blastocysts on sex ratio were also investigated using PCR methods. The results obtained in this study were as follows; 1. Developmental rates to blastocyst from IVM/IVF embryos in TCM 199 and CR1aa medium for 9 days were 23.5 and 30.2%, respectively, and there was significant difference between the media(P<0.05). 2. Male to female ratio of early, mid, expanded and hatching balstocyst produced on Day 7 were 0.7:1, 1.4:1, 2.2:1, and 2.5:1, respectively, and male embryos was significantly higher proportion in expanding and hatching blastocysts(P<0.01). 3. On Day 8, male to female ratio of early, mid, expanded and hatching blastocysts were 0.6:1, 1:1, 2.5:1, and 2.7:1, respectively. Both expanded and hatching blastocysts obtained a significantly higher proportion of males(P<0.01). 4. The male : female ratio of early, mid, expanded and hatching blastocyst produced on Day 9 was 0.6:1, 0.8:1, 1:1, and 2.2:1, respectively. Hatching blastocysts had a significantly higher ratio of males(P<0.01). The developmental rate of IVM/IVF embryos to blastocyst for 9 day culture was higher in CR1aa than that in TCM 199 medium. For the sex ratio by developmental stages of IVF embryos, male ratio was higher in expanded blastocyst but female in early blastocysts.

• The Korean Journal of Community Living Science
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• v.17 no.4
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• pp.151-161
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• 2006

This study was made to find out how health practice affect on nutrition status of the college freshmen in male and female. 400 freshmen students in 4year colleges were surveyed. Questionnaire and blood analysis were made. The contents of questionnaire contained general characteristics, health practice behavior, and food intake. The physical measurement included height, weight and blood pressure. The questions for health practice were about drinking, smoking, BMI, skipping breakfast and sleeping. Nutrient intake was expressed by DDS(Dietary Diversity Score by 5 food groups) and DVS (Dietary Variety Score) and 24-hrs recall method was used to find out the quantity of daily food intake. EAR% was calculated and NAR and MAR were produced. The results are as follows: 1) BMI was $22.77kg/m^2$ for males and $20.42kg/m^2$ for females. The ratio maintaining normal weight indicated by BMI of 18.5-23 was higher(p<0.001) for female students(63.2%) than males(56.5%). The ratio of overweight with over $23kg/m^2$ of BMI was 28.5% for males and 8.8% for females(p<0.001). 2)The ratio of drinking students was 59.4% for males and 40.6% for female(p<0.001). And the ratio of smoking students was 95.2% for males and 4.8% for females(p<0.001). 3) The ratio of poor health practice group was 35.7% for males and 25.5% for females, and that of excellent one was 25.4% for males and 33.1% for females(p<0.05). 4) In NAR, the lowest ratio was observed for the intake of Ca, Fe, Vitamin C and Vitamin $B_2$. The intake of Fe, Vitamin $B_2$ and phosphorus were different significantly according to sexuality. For Fe, female students showed lower level than male students(p<0.001). For Vitamin $B_2$, and phosphorus female students showed higher level(p<0.001). 5) In MAR, there was no difference according to sexuality in almost all of the ingredients. 6) For energy intake, male and female students showed 59% and 66% of EAR and it was insufficient for them. 7) For protein, more than 100% was obtained. The lowest ratio was observed for the intake of vitamin C 50.8%, Ca 53.6% and Fe 65.1% of EAR were obtained. The lowest intake ratio and for the intake of Fe female students obtained just 37.5% of EAR showing high risk of anemia. The intake of energy(p<0.001), phosphorus(p<0.01), niacin(p<0.05), Fe(p<0.001), and Vitamin $B_2$ (p<0.001) were different significantly according to sexuality. For Fe, female students showed lower level than male students(p<0.001). For energy, phosphorus, niacin, and Vitamin $B_2$ female students showed higher level(p<0.001) than male students. 8) For blood pressure, male students showed normal level of 120.7/79.1 mmHg, however, female students showed 114.5/75.4 mmHg lower than male (p<0.001). 9). In blood, for hemoglobin female students showed significantly lower level than that of male(p<0.001). T-Cholesterol and HDL-Cholesterol female students showed higher level than males (p<0.001), And for triglyceride male students showed higher level than females(p<0.001). Ca and Fe female students showed lower level (p<0.001).

• The Korean Journal of Community Living Science
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• v.17 no.2
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• pp.81-87
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• 2006

This study was made for male and female university students regarding the nutrition knowledge about fat, fat contents in food, and practice toward fat. The result is as follows;1.Out of 13 questions inquiring the knowledge about fat a significant difference was observed between female and male students in 10 questions. Male students' nutrition knowledge about fat was $6.33{\pm}0.16$, and that of female students' was $6.33{\pm}0.16$ and there was no significant difference. The ratio of correct answer was 49% and 59% respectively. Female students marked high ratio of correct answer such items as ${\omega}-3$ fatty acid, the relation between high fat diet and atherosclerosis(coronary disease), the relation between obesity and fat, the relation between ${\omega}-3$ fatty acid and heart disease, cholesterol, fatty acid in butter, degree of unsaturation in liquid oil, margarine, chicken fat, rancity of fat. 2.Male students' total score of knowledge about fat quantity in food was $4.91{\pm}0.10$ and that of female students was $5.58{\pm}0.10$. There was significant difference(p<0.001) and the ratio of correct answer was 55% and 62% respectively. Out of 9 food items, significant difference was observed in 7 items according to student's majoring subject. The ratio of correct answer for the questions about the quantity of fat in food female showed high figures in such items as white meat(p<0.01), whole milk(p<0.0001), skim milk(p<0.01), potato chips(p<0.001), biscuit(p<0.001). However, male students showed high figures on the question about the quantity of fat in vegetable margarine. 3. Out of 12 items observing the degree of diet practice on fat, significant difference was observed between male and female students in 6 items. Female students practice the question items positively with high ratio: intake of fish instead of meat(p<0.01), removing visible fat in meat(p<0.0001), removing chicken skin(p<0.0001), removing oil during cooking (p<0.05), selection of low fat milk or skim milk(p<0.05), selection of meat part(p<0.001). There was significant difference between male and female students in practicing diet on fat (p<0.001) and the total score was $31.52{\pm}0.52$ and $34.65{\pm}0.41$ respectively.

• Animal cells and systems
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• v.4 no.2
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• pp.131-140
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• 2000

The pattern of variations in cone sex ratio and pollen traits such as pollen number and size was examined for two years in populations of red pines In Korea. We evaluated; (1) the relationship between tree size and cone sex ratio, (2) the relationship between year and cone sex ratio, and (3) the relationship between cone sex ratio and pollen traits. Larger trees in height and circumference at breast height produced more male as well as female cones. However, cone sex ratio was independent of these plant sizes. Across the two populations, both female cone numbers per tree and male cone numbers per new shoot increased 2.2 and 1.2 times, respectively, in 1999 compared to 1998, while the yearly pattern of male cone-bearing shoots per tree differed significantly between populations. Thus, cone sex ratio varied significantly between years in one of the two populations. Pollen traits such as the number of pollen grains and diameter did not vary significantly among populations. Pollen diameter and grain numbers per male cone were significantly negatively correlated with the cone sex ratio in two populations and one population, respectively. Trees which stopped female cone production in the first year and those which produced female cones in both years differed in the cone sex ratio and pollen size in the second year. The long duration of one reproductive episode and the potential of masting in red pines emphasize the need to conduct long-term studies on the dynamics of cone production, cone sex ratio, and simultaneous changes in pollen traits in red pines.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.2
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• pp.741-746
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• 2012

We studied about dietary habits and obesity of the culinary college students, the average age of male subject was 20.4 years, female 19.8years, male height 174.0cm, female 162.6 cm, body weight of male 71.4 kg, female 60.3 kg. Average body fat% of male was 20.5%, that of female was 30.2%, their average body fat% was at the range of overweight. Most subjects were not satisfied with their body weight and seemed to have ideal body shape as standard and lean. 51.6% of male and 35.2% of female students did not eat breakfast. Male students ratio of eating lunch every day was 41.7%, that of female was 27.0%, male students ratio of eating dinner every day was 54.8%, that of female was 35.5%. They liked to eat meal as rice type and 1-2day per week, they used to eat night snack. The first cause of not eating meal was lack of time. Under stress 56 % of male eated as much as usual, 58.7% of female eated more than usual.

• Korean Journal of Community Nutrition
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• v.4 no.1
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• pp.46-56
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• 1999

A deep understanding of the dietary patterns and nutrient intake is important for assessment of possilbe nutritional risk and for establishing nutrition improvement strategies. This study was conducted toexamine the dietary characteristics of a nutritionally poor elderly group compared to the middle-and highly-nourished group. Elderly participant was recruited from local elderly centers in Suwon city in 1998. Trained dietitians interviewed 119 elderly(35 males, 84 females) aged 60 years and over for collecting dietary data(24-hour recall) and related variables. Male and female subjects were grouped into high, middle, and low according to the mean nutrient adequancy ratio(MAR) tertiles. An analysisof the percentage of RDA(Recommended Daily Allowances of Korea) for each of the 10 nutrients showed that the male low-MAR group consumed below the RDA in all kinds of nutrients, and the female low-MAR group consumed nutrients below the RDA except vitamin C. An evaluation of nutrient density by Index of Nutritonal Quality(INQ) also showed a similar tendency. Thus, the INQ level of the male low-MAR group was significantly lower than the middle-or high-MAR group, especially in protein, vitamin A, thiamin, riboflavin, and phosphorus(p<0.05). Moreover, INQ level of female low-MAR group was significantly lower than that of the high group(p<0.05) in all nutrients. The female low-MAR group's daily food intake were also lower than those of the high-MARgroup in gains, fish, fruits, oil and beverages. The energy distribution from carbohydrates, fats and proteins showed that the male low-MAR group had significantly higher carbohydrate and lower fat proportions compared to each gender high-MAR group, respectively. The male and female low-MAR group had low scores about eating all side dishes. These findings indicate that a moderate increase of the meat/egg/fishes intake was needed by the male low-MAR group for improving nutrition adequacy, and an overall increase of the food quantity and quality was desired for the female low-MAR group. These data could be used for planning a community elderly nutrition program and establishing strategies for tailored guidelines for the individuals.

• Journal of Korean Public Health Nursing
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• v.12 no.2
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• pp.149-171
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• 1998

This study attempted to find out a way which is to establish a desirable value and social culture related to sexuality. This study examined student's value and preference about sex and at the same time resolving method to correct ill-rooted value of male preference in our social culture. This study subjects consisted of 409 male and female students of a college located in Incheon area. The study data collected from June 5th to June 11th. 1998. Survey technique was chosen to collect data and analized by SPSS/PC+, SAS program using statistical methods of frequency. percent. $X^ 2-test$ and t-test. The study results are as follows ; 1) Sex satisfaction score of male students was higher than female students and the difference was significant statistically (p<0.0001). 2) There was a difference between male and female student's thought that our socity's structure has a sex discrimination. But female students felt strongly unequality of sex in our socity. 3) $65.4\%$ of total students have a general knowledge about sex and female student's score was higher than male students. The high percent of students get into know sex through mass media $(32.6\%)$ and peer groups $(31.9\%)$. 4) Student's attitude to sex was different from male and female students. Male students have more liberal attitude about sex than female students. 5) $97.1\%$ of the total students believe that our socity has son preference. 6) $86.5\%$ of the total students thought that sex ratio disproportion resulted from male preference is worriable problems in our socity. But there was no significant difference between both sexes.

• Korean Journal of Human Ecology
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• v.23 no.4
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• pp.743-757
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• 2014

The purpose of this study was to compare nutrient intakes, blood lipids and bone density of male(n=69) and female(n=71) according to the obesity index by %Fat. The average energy intakes of obesity group was higher than normal group in male & female(p<0.001). The protein and fat intakes among three energy nutrients for male were higher than normal group(p<0.05~0.01), and carbohydrate intake of obesity group in female was higher than the other groups. TG, TC/HDL, blood glucose, blood pressure in male were higher than female(p<0.01~0.001), but HDL in male was lower than female. TC/HDL and diastolic blood pressure of obesity group were higher than normal group in male(p<0.05), but had not significant in female. Blood glucose in male was higher than female(p<0.001). T-score of forearm(=-1.26) and calcaneus(=0.42) for female were lower than male(=-0.63, 0.83), and T-score of calcaneus for obesity group(=1.03) in female was higher than normal group(=0.10). The T-score of forearm for obesity group in female was higher than the other group, but was not significant. These results suggest that ratio among three energy nutrients was kept balance for obesity group, especially, fat must be reduced in male than female, carbohydrate will be reduced in female than male to prevent obesity. Nutritional education for treatment obesity to prevent hyperlipidemia and arteriosclerosis is important for male too. T-score of forearm was lower than calcaneus in female, so exercise with arm than leg would be required to accumulate calcium in bone and to increase muscle to prevent osteoporosis.

• The Research Journal of the Costume Culture
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• v.13 no.4 s.57
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• pp.632-645
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• 2005

The purpose of this research was to investigate the harmony evaluation and the effects used clues on harmony perception in terms of 32 tone on tone coloration of male shirt and necktie by male and female students when it comes to the coloration of male clothes shirts and necktie, after shirts matched necktie with warm and cool color, such as red, blue, and changed only value among three attributes of color. The results are as fellows. As to the red, light-dull, dull-dark was evaluated as harmonized coloration regardless of area-ratio by both male and female students. As to the blue, vivid-dark, light-dark, dull-dark was evaluated as harmonized coloration regardless of area-ratio by both male and femate students. Among 16 red tone on tone coloration stimuli, both female and male students evaluated the same 10 set as harmonized, but among 16 blue tone on tone coloration stimuli, female students evaluated 9 set, male students 12 set, so proved that male's range of harmony more extensive than that of female. It is significant difference between female and male on red dull shirt and vivid tie, blue dull shirt and dull tie combination. Females were positive to red dull shirt and vivid tie combination, males were negative, on the other hand, males were positive to blue dull shirt and dull tie combination, females were negative.