• 한국어류학회지
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• 제28권2호
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• pp.72-78
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• 2016

북방종개 Iksookimia pacifica의 연령 및 산란기 특징을 밝히기 위해 2013년 1월부터 12월까지 강원도 고성군 북천에서 조사를 실시하였다. 전장빈도분포도를 이용하여 연령을 추정한 결과 암컷은 산란기 (7월)를 기준으로 전장 30~49 mm는 만 1년생, 50~74 mm는 만 2년생, 75~99 mm는 만 3년생, 100~124 mm는 만 4년생, 130~160 mm는 만 5년생 이상으로 추정되었다. 성비 (♂/♀)는 0.63이었으며 암컷이 수컷보다 30~60 mm가 더 컸다. 이차 성징인 수컷 가슴지느러미의 골질반은 부화 후 13개월 후에 생성되어 암 수가 구별되었다. 산란기는 생식소성숙도로 추정한 결과 7~8월 (산란성기 7월)로 추정되었으며, 포란수는 $2,503{\pm}1,337$개, 성숙난의 크기는 $1.11{\pm}0.04mm$였다.

• 대한수학교육학회지:학교수학
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• 제15권1호
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• pp.61-75
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• 2013

본 연구는 수학 학습에서 우리나라 학생들의 정의적 특성을 요인 분석과 인지 진단이론을 바탕으로 학교급과 성별에 따라 분석하였다. 이종희 외 6명(2011)이 개발한 정의적 성취 검사도구를 학교급별로 적용했을 때 요인 분석과 인지 진단 이론의 모델은 적합한 것으로 판명되었으며, 이에 따라 학교급과 성별 차이를 살펴보았다. 요인 분석에 의해 수치화된 정의적 성취는 학교급별로 평균의 차이가 있었는데, 중학교와 고등학교는 차이가 없었으나 초등학교와 중등학교 간에는 차이가 있었다. 또한 학교급 내에서 남녀 차이가 있었는데, 대체로 남학생의 정의적 성취가 여학생보다 더 긍정적이었다. 인지 진단 이론에 의해 학생들이 성취한 정의적 속성의 비율을 학교급과 성별로 살펴보았을 때, 중학생이 자기 통제와 불안을 가장 많이 성취하고 있었고, 모든 학교급에서 가장 많이 성취한 속성은 수학에 대한 가치 인식이었다. 학교급 내 남녀 학생들이 성취한 속성의 수를 살펴보면, 모든 학교급에서 남학생이 학습지향성, 흥미, 자신감을 성취한 비율이 여학생보다 높았고, 여학생들은 불안이 있는 경우의 비율이 남학생에 비해 높았다. 학생들의 개인별 프로파일을 보면, 불안은 없으면서 나머지 5가지 속성을 모두 성취한 학생들의 비율이 가장 높았다.

• Asian-Australasian Journal of Animal Sciences
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• 제16권1호
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• pp.50-56
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• 2003

An experiment was carried out to compare the body weight, shank length, rectal temperature, comb area, abdominal fat, blood parameters and bone traits of capon, slip and intact birds in Taiwan country chicken cockerels. One hundred and sixty-six Taiwan country chicken cockerels were randomly assigned to caponized or intact male groups. Caponized birds were surgically altered at 10 weeks old and raised to 28 weeks old. At 28 weeks of age, the capons were separated into capon and slip groups, depending on the atrophy of the comb and wattle in size. The results showed that body weight and shank length in slips were significantly (p<0.05) greater than in intact birds. Intact birds had the highest (p<0.05）feather scores and the lowest (p<0.05) rectal temperature. Compared with intact birds and slips, capons had a significantly (p<0.05) smaller comb area. Bone percentage, stress and cortical thickness, and bone and ash calcium content and plasma testosterone concentration, in intact birds were the highest (p<0.05) followed by slips and capons. However, intact birds had the lowest (p<0.05) plasma ionized calcium and phosphorus concentrations. Bone and ash manganese contents in capons were significantly (p<0.05)lower than those in others. These findings support the hypothesis that androgenic effects on secondary sexual characteristics are stronger than anabolic growth promoting response. Androgens can directly influence calcium fluxes in male chickens. Caponized caused a reduction in the bone percentage, stress, cortical thickness and bone calcium content.

• 한국수산과학회지
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• 제35권3호
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• pp.253-258
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• 2002

Androgenic gland는 대부분의 수컷 연갑류의 제1, 2차 성징의 분화와 성적행동을 유발시키는 호르몬을 분비하는 것으로 알려져 있다. 생식소지수와 정소 및 AC의 조직학적 조사결과, 본 종에서 정자형성이 활발히 일어나는 시기는 5$\~$7월이며 8월부터는 대부분의 개체에서 정자형성은 관찰되지 않았다. 따라서 본 종의 수컷은 5월에서 7월이 성적으로 가장 활발하며 이 시기에 AG는 increased secretory activity를 나타내는 여러 징후를 보인다.

• 보건교육건강증진학회지
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• 제16권2호
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• pp.137-155
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• 1999

The purpose of this study was to assess the effect of sex education on knowledge and attitude related to sex. The subjects were taken from by 199 students in 3 classes from 1st grade in H girl's junior high school as the study group, and 2 classes from 1st grade in S girl's junior high school as control group. During the survey period(September 21, 1998 to September 30, 1998), 6 times in terms of one-hour class for sex education were taught to the study group. A pre-test was executed on September 19, 1998 and the post-test on September 30. The findings were as follows. 1. According to the research, 20.1％ of the subjects have experienced sex education from parents and 89.9％ from teacher. They have mostly obtained the sex-related information from teachers(59.8％), following movie, radio, TV, or video tape(40.7％), friends(35.2％), reading materials such as books, cartoons, news papers and magazines(31.7％), parents(15.6％), siblings(7.0％), PC(1.5％) and telephone service(1.5％). 2. 27.1％ of the subjects reported that they had sex-related worry concerning from friendship with the opposite sex, following physiological phenomenon(31.5％), sex violence(11.1％), physical characteristics(7.4％), VD and contraception(5.6％), sexual impulse(5.6％), pregnancy and delivery(5.5％), and sexual behaviour(3.7％). The research showed that the adolescents usually solved their problems through the consultation with theifriends(44.4％). However, 16.7％ of the subjects were turned out not to request any solution. The other minor routes to settle their problems were written materials such as books, magazines(13.0％), parents(13.0％), movie, radio, TV, or video tape(5.5％), acquainted female elders(3.7％) and teachers(3.7％). 3. The most interesting part regarding sex was the friendship with the opposite sex(61.8％), following adolescent's emotion(55.8％), physiological differences between two genders(52.8％), AIDS(48.7％), VD(46.7％), pregnancy(45.2％), contraception(45.2％), abortion(41.7％), intercourse(41.7％), masturbation(41.2％), sex violence(41.2％) and genital structure and secondary sexual characteristics(28.6％). 4. In regard to characteristics of the subjects influencing sex-related knowledge, the higher educational career of mother, living with at least either parent and the experience of sex education by teachers were statistically significant factors(p〈0.05). 5. In regard to characteristics of the subjects influencing attitudes toward sex, the experience of sex education by parents or teachers was a statistically significant factor(p〈0.05). 6. The analysis of knowledge score comparing results before and after sex education showed that control group's score decreased from 12.5 to 12.44 while the study group's score increased from 12.33 to 21.31, which was statistically significant(p〈0.001). 7. The analysis of the attitude scores before and after sex education showed that the control group's score slightly increased from 55.57 to 56.36, while the study group's score increased from 54.79 to 61.95, which was statistically significant(p〈0.001). 8. The level of sex-related concerns of the study group after sex education marked both the increase in some items and the decrease in others. 9. Most instructive session among the sex education was the third “to be a good friend to the opposite sex”(27.0％).

• 한국가금학회지
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• 제13권2호
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• pp.197-208
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• 1986

본 시험은 6가지 다른 사양방법이 White Plymouth Rock 육용종 웅계의 생체중, 정소, 계관 그리고 뇌하수체의 발육 및 성성숙에 미치는 영향을 구명하기 위하여 부화후부터 22주령까지 2주간격으로 생체중, 정소, 계관 그리고 뇌하수체의 중량이 조사되었으며, 또한 정소조직과 정액성상이 조사되었다. 그 얻어진 결과를 요약하면 다음과 같다. 1. 생체중, 정소, 계관의 발육은 10주령 이후부터 무제한급이군들이 제한급이군들(무제한급이군들의 70%급이)보다 2주 더 빠름을 나타내었다. 정소 및 계관의 급증시기는 무제한급이군들에서 20주령이었고, 제한급이군들에서 22주령이었다. 2. 뇌하수체의 무게는 부화후부터 22주령까지 4주령, 14주령, 16주령을 제외하고 각 주령별, 각 처리군간에 유의성이 나타나지 않았다. 뇌하수체의 중량은 주령이 경과하면서 완만한 증가를 나타내었다. 3. 22주령까지에서 주령, 생체중, 정소, 계관 및 뇌하수체간에는 고도의 유의적인 상관관계를 나타내었다. 4. 세정관의 관경과 강경은 부화후부터 10주령까지 점진적으로 증가되다가 무제한 급이군들에서는 12주령부터 제한급이군들에서는 14주령부터 급증하기 시작하였고, 그 후에도 22주령까지 계속증가되었다.

• The Plant Pathology Journal
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• 제22권3호
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• pp.215-221
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• 2006

Gibberella zeae (anamorph: Fusarium graminearum) is an important pathogen of cereal crops. This fungus produces a broad range of secondary metabolites, including polyketides such as aurofusarin (a red pigment) and zearalenone (an estrogenic mycotoxin), which are important mycological characteristics of this species. A screen of G. zeae insertional mutants, generated using a restriction enzyme-mediated integration (REMI) procedure, led to the isolation of a mutant (Z43R606) that produced neither aurofusarin nor zearalenone yet showed normal female fertility and virulence on host plants. Outcrossing analysis confirmed that both the albino and zearalenone-deficient mutations are linked to the insertional vector in Z43R606. Molecular characterization of Z43R606 revealed a deletion of at least 220 kb of the genome at the vector insertion site, including the gene clusters required for the biosynthesis of aurofusarin and zearalenone, respectively. A re-creation of the insertional event of Z43R606 in the wild-type strain demonstrated that the 220-kb deletion is responsible for the phenotypic changes in Z43R606 and that a large region of genomic DNA can be efficiently deleted in G. zeae by double homologous recombination. The results showed that 52 putative genes located in the deleted genomic region are not essential for phenotypes other than the production of both aurofusarin and zearalenone. This is the first report of the molecular characterization of a large genomic deletion in G. zeae mediated by the REMI procedure.

• 한국수산과학회지
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• 제29권1호
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• pp.26-34
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• 1996

1992년 5월부터 1993년 8월까지 부산 수영만 인근해역에서 채집된 망상어, Ditrema temminck의 교미 및 임신과 관련된 사항을 조직학적으로 조사한 결과는 다음과 같다. 교미시기에 성숙한 수컷은 뒷지느러미 연조의 좌우 기저부에 각각 하나씩 교미기가 돌출된다. 교미에 참여한 수컷의 이차성징지수는 3.5이상으로 나타났으며, 암컷에서 성숙난은 난소강내에 정자를 보유한 개체에서만 나타났다. 교미시 정자의 난소강내 수송형태는 정포형태이며, 교미후 난소강내의 정자는 수정시까지 약 1개월 정도의 잠복기를 가진다. 수정형은 여포강내 수정형이고, 임신형은 난소강내 임신형이며, 암컷의 발생학적 과정은 수정-배란-부화-출산으로 이어진다. 출산직전 체내자어의 크기는 전장 63.0cm정도이며, 평균 체내자어수는 모체가 전장 20.0cm인 경우 18마리 였으며 모체의 크기가 증가함에 따라 증가하는 경향을 보였다.

• 대한한방소아과학회지
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• 제28권2호
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• pp.1-22
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• 2014

Objectives The purpose of this study is to investigate the relationship between weak children and growth indices. Methods One hundred twenty-six of the first and the second grade elementary school students who didn't have to develop yet their secondary sexual characteristics answered the questionnaire. Their bone age and body composition were measured. Results 1. According to the Weak Children questionnaire analysis, respiratory problem was one of the biggest problems in the weak children group (35.7%), followed by digestive problems (23.0%), psycho-neurological problems (22.2%), neuromotor problems (9.5%), and urogenital problems (8.7%). 2. From the comparison between growth indices of weak children and that of normal children are as follows: 1) The group of children who had problem in their digestive system had lower growth indices than the normal average children group. The growth indices includes mean height, weight, total body water, protein mass, mineral mass, body fat, skeletal muscle mass, body fat percentage, body mass index (BMI), and basal metabolic rate (BMR). 2) The children who had urogenital weakness had lower mean height, RH (Recent Height), RH - MPH {Recent Height(%) - Mid-Parental Height(%)}, RUS (Radius, Ulna and Short bone) score, weight, protein mass, body fat, BMI, and visceral fat than the normal children group. 3. The results of the multiple comparisons of growth indices and weak children groups are as follows: 1) Digestive weak children were the lowest in total body water, protein mass, mineral mass, skeletal muscle mass, and basal metabolic rate. 2) Urogenital weak children were the lowest in height, RH, RH - MPH, RUS score, and weight. Conclusion These results showed that children's growth is strongly correlated to their own growth problems, especially to those children who have digestive and urogenital problems. Therefore, this may be an effective way for children growth treatment in Korean medicine to treat weak symptoms.

• Clinical and Experimental Reproductive Medicine
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• 제50권3호
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• pp.192-199
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• 2023

Objective: This study was conducted to investigate chromosomal abnormalities and their correlations with clinical and radiological findings in females with primary amenorrhea (PA). Methods: Detailed forms were recorded for 470 females, including the construction of three-generation pedigrees. Peripheral venous blood was drawn, with informed consent, for cytogenetic analysis. Results: An abnormal karyotype was found in 16.38% of participants. The incidence of structural abnormalities (6.8%) exceeded that of numerical abnormalities (6.15%). Turner syndrome represented 45% of all numerical abnormalities. Furthermore, the Y chromosome was detected in 5% of females with PA. Among the structural chromosomal abnormalities detected (n=32) were mosaicism (25%), deletions (12.5%), isochromosomes (18.75%), fragile sites (3.12%), derivatives (3.12%), marker chromosomes (3.12%), and normal variants (29.125%). An examination of secondary sexual characteristics revealed that 29.6% of females had a complete absence of breast development, 29.78% lacked pubic hair, and 36.88% exhibited no axillary hair development. Radiological findings revealed that 51.22% of females had a hypoplastic uterus and 26.66% had a completely absent uterus. Abnormal ovarian development, such as the complete absence of both ovaries, absence of one ovary, one absent and other streak, or both streak ovaries, was observed in 69.47% of females with PA. Additionally 43.1%, 36.1%, 67.4%, and 8% of females had elevated levels of serum follicle-stimulating hormone, luteinizing hormone, thyroid-stimulating hormone, and prolactin, respectively. Conclusion: This study underscores the importance of karyotyping as a fundamental diagnostic tool for assessing PA. The cytogenetic correlation with these profiles will aid in genetic counseling and further management of the condition.