• The korean journal of orthodontics
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• v.28 no.4 s.69
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• pp.581-589
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• 1998

In order to correct a maxillofacial-skeletal disharmony successfully and achieve a favorable facial profile, orthodontic treatment must begin at pubertal growth spurt. Therefore predicting the pubertal growth pattern and evaluating the growth potential is very important. For an orthodontist, estimating skeletal maturity in relation to one's personal growth spurt is essential and it must be considered into the treatment. The objective of this study was to find out whether there was a difference in menacheal age among different malocclusion groups and to evaluate the skeletal maturity at menarche. The subjects were 64 Class I malocclusion patients, 51 Class II patients and 38 Class III patients. Skeletal maturity was estimated from handwrist radiographs of these patients. Handwrist radiographs were taken between 3 months before and after the menarche. The results were as follows. 1. The mean chronologic age of menarche was $12.50{\pm}1.01$ years. 2. For the Class I malocclusion group the mean age of menarche was $12.36{\pm}1.04$ years, for Class II $12.81{\pm}1.03$ years and for Class III $12.32{\pm}0.82$ years. According to these results Class II malocclusion patients started mensturation later than Class I and Class III malocclusion patients. 3. No difference was found considering the skeletal maturity at menarche among the malocclusion groups. 4. The skeletal maturity index at menarche was SMI 7 for $45.10\%$, SMI 8 for $27.25\%$, SMI 9 for $10.46\%$, SMI 6 for $7.84\%$, SMI 10 for $7.84\%$ and SMI 5 for $1.31\%$ patients. 5. Statistically there was a significant correlation between skeletal maturity estimated by handwrist radiographs and menacheal age(p<0.05, r=0.25430).

• 우유
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• s.62 fall
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• pp.13-20
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• 1995

우유는 건강한 소의 유미관에서 분비되는 것으로 초유는 포함되지 않으며 어린이의 발육과 성장에 필수적인 영양소가 풍부하게 포함되어 있는 완전식품으로, 그대로 마시거나, 소스 · 수프 · 육류요리 · 비스켓 · 케이크 등의 재료로 이용되며, 이 우유를 원료로 해서 버터 · 치즈 · 크림 · 발효유 · 아이스크림과 같은 유가공품 으로서도 널리 이용된다. 우리나라 식생활에서는 식품섭취영태는 당류의 섭취도가 높고, 단백질이나 칼슘급원식품의 섭취가 부족한 상태이므로 우유를 칼슘의 급원식품으로 한 사람이 매일 1컵 이상의 우유를 섭취하도록 권장하고 있다. 특히 성장기의 어린이를 위하여는 학교급식에서 싼 가격으로 우유를 먹을 수 있도록 배려하며 하루 3~4컵의 우유를 섭취할 것을 권장하고 있다. 이와 같은 시점에서 본고에서는 우유와 유가공품을 선택하여 먹고 마시는 경우에 그 식품 본래의 영양성분과 맛을 잃지 않고 섭취할 수 있는 효과적인 방법과 보관할 때의 주의할 점과 언제 먹고 마시는 것이 효과를 증진할 수 있는지 등을 알아보고자 한다.

• Journal of Sericultural and Entomological Science
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• v.37 no.2
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• pp.188-190
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• 1995

The eggs of the silkworm, Bombyx mori, were treated topically with 10-3, 1-0-4, 10-5 aqueous Insegar and the hatchability was checked. The chemical affected all the tested developmental stages, but the results varied according to the stages and the degree of density. The hatchability was reduced upto 0% for the eggs treated at the 1 and 3 day stages, compared to 97% of control eggs.

• Korean Journal of Poultry Science
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• v.22 no.3
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• pp.145-153
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• 1995

The root powder of Angelicae gigantis Radix (RPAGR) is known to he beneficial for liver and blood circulation. In a 6-wk broiler feeding trial, the RPAGR was added at levels of 0, 0.2, 0.5, and 1.0%, respectively. The RPAGR was found to be palatable as birds consumed moreof the test diets than the control(0% RPAGR) diet. The BW gain of 1.0% RPAGR group was higher than the control group. The feed efficiency(F/G) was improved significantly(P<0.01) by feeding 1.0% RPAGR. The RPAGR also caused beneficial effects in various carcass characteristics, i.e., carcass weight, dressing percentage, breast muscle, and thigh meat production. There was no consistent trend in various organ weights by the addition of RPAGR. Also, no consistent trend was found in abdominal fat weight. The serum cholesterol level tended to decrease as the BW increased. No consistent trend was detected in serum triglyceride contents.

• Journal of Nutrition and Health
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• v.23 no.7
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• pp.513-520
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• 1990

A nutrition survey of 274 children, 6 to 12 years old, in the Nan Hyang elementary school, which offers no school lunch program and is situated in Shinllim 7-dong of Seoul, as the location of one of the socioeconomically vulnerable groups, was undertaken in July of 1989, to investigate nutritional status. anthropometric data of subjects surveyed slightly lower results than the Korean standards and further lower results than those of Yun Jung elementary school children of Youido, Seoul. 16.3% of subjects were proven to be anemic according to the hematocrit criterion established by the WHO. Mean urinary urea nitrogen/creatinine ration was 9.5$\pm$4.1. Family environment were positively correlated with anthropometric data and results of biochemical tests.

• The Journal of the Korean dental association
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• v.19 no.2 s.141
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• pp.181-185
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• 1981

In this study an attempt has been made to throw some light on the problem of the mandibular third molar on measurement made from 302 orthopantomograms of patients at the age of 8 to 20 years. The following conclusions were drawn on the basis of the present study. 1. The amount of growth from the lower first molar to the anterior border of the ramus from 8 years to 14 years was 7.9mm in the male and 7.5mm in the female. The growth from 15years 20 years was 4.5mm in the male and 2.6mm in the female. 2. The growth from the lower first molar to the posterior border of the ramus from 8 years to 14 years was 10mm in the male and 9.8mm in the female. The growth occurred after that was 5.8mm in the male and 2.0mm in the female. 3. The difference between A and C measurements for the various age groups remained fairly constant in the male and female.

• Korean Journal of Animal Reproduction
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• v.17 no.1
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• pp.7-12
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• 1993

소의 체외수정란과 난구세포와의 공동배양시 발생배지에 FCS, CS 또는 BSA를 여러 농도로 첨가해 상실배 또는 배반포기배까지의 발생율을 비교 검토했다. 그 결과, 단백질원을 전혀 첨가하지 않은 경우 발생율이 11%로 첨가의 경우에 비해 낮았다. 한편, 1∼10% FCS(27∼38%), 1∼10%CS(29∼35%) 및 1∼10mg/ml BSA(57∼59%)를 첨가한 경우, 첨가단백질 농도 사이에서 발생율에 유의차는 인정되지 않았으나, 20%의 FCS와 CS, 20mg/ml의 BSA농동에서 보다 높은 발생율을 보였다(P<0.05). 첨가 단백질 종류로만 발생율을 비교한 경우, FCS(17∼35%) 및 CS(9∼35%) 첨가에 비해 BSA(35∼59%) 첨가시 높은 발생율이 인정되었따. 한편, BSA가 첨가된 배지에서 난구세포의 증식은 관찰되지 않았는데, 이와 같은 결과로부터 초기배의 발육과 난구세포의 성장 사이에는 상관관계가 없는 것으로 추측되었다.

• Journal of Sericultural and Entomological Science
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• v.19 no.1
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• pp.5-7
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• 1977

On the purpose of exploiting cellulose resourse which is needed for artificial diet of silkworms, mulberry branch, eastern cotton wood branch, pitch pine pulp, poplar pulp, chaff, sawdust and rice straw were examined. Among the matters above mentioned. mulberry branch and pitch pine pulp were found to be replaceable as cellulose component in the artificial diet. By means of some chemical treatments, it is found that one of the extracted cellulose powder from mulberry branches is more useful in the larval growth.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.499-501
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• 2000

굴을 포함한 대부분의 해양 무척추동물들은 동일종이라도 먹이조건과 온도조건에 의해 성장과 발육, 번식초기연령이나 최소번식 크기 등에 큰 차이를 보인다. 굴의 번식수단 및 생활사 를 이해하기 위해서는 번식이나 생활사에 관한 속성을 보다 수량적으로 확인하고 동시에 개체군 생태학적인 지견을 가질 필요가 있다 (윤, 1996). 대서양산 굴, Crassostre virginica에 대하여 Lee and Heffernan (1991)은 알의 지질과 단백질 조성을 밝히고 생화학적 특성을 보고하였으며, Choi et al. (1993)는 면역학적 방법을 이용하여 번식량에 대한 정량적인 연구를 보고한 바 있으나, 이와는 대조적으로 참굴 C. gigas의 알 및 번식량에 대한 연구는 미비한 실정이다. (중략)

• Journal of the Korean Society of Safety
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• v.8 no.2
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• pp.94-98
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• 1993

This study discusses a possible ergonomics application for adult wheelchair design in consideration of anthropometry, physical load, control ability, posture, subjective analysis, security and so on. Korean normal adults who ever used wheelchairs are examined. And anthropometric data and basic data to make standard wheelchair are provided.