• Title/Summary/Keyword: 성장과 발육

Search Result 388, Processing Time 0.031 seconds

The Effect of Sexual Maturity and Self-Concept on Interest in Appearance and Appearance Management Behavior for Female Students in Elementary and Middle School (초.중등 여학생의 성 성숙과 자기개념이 외모관심도와 외모관리행동에 미치는 영향)

  • Lee, Hwa-Jin;Shin, Hye-Won
    • Journal of Korean Home Economics Education Association
    • /
    • v.23 no.3
    • /
    • pp.185-200
    • /
    • 2011
  • The purpose of this study was to investigate if these factors affect the correlation between the female adolescent interest in appearance and appearance management behavior with self-concept and sexual maturity. To achieve this, a survey was conducted for the female students in elementary and middle school in the Seoul area. The results of this study were as follows. 1. The comparison of students' interest in appearance and appearance management behavior showed that the middle school students showed higher scores in both matters. 2. Elementary students generally held more positive self-concept, with domestic self value shown statistically high 3. Tanner Stage 2.3. the early puberty stage, for elementary school students, and Tanner Stage 3.4. the growth and development stage, for middle school students. The percentage of students who had already entered menstruating turned out to be only 33% for elementary students but 90% for middle school students. Their subjective views of sexual maturity were also different as elementary students had negative feeling when they thought their sexual maturity were maturity were earlier than their peers' while middle school students were just the opposite. 4. The study on the impact of self-concept and sexual maturity on the interest in appearance of female students in elementary and middle school showed that elementary students had a higher interest in appearance that corresponded to the lower domestic self-concept and a higher social self-concept. On the other hand, middle school students showed higher interest in appearance, corresponding to their higher social self-concept, lower domestic self-concept, more negative feeling of sexual maturity, and higher feeling of physical self-concept. The study on the impact of interest in appearance, self-concept, and sexual maturity on the appearance management behavior of elementary and middle school female students revealed that elementary students with a higher interest in appearance were more enthusiastic about appearance management. Middle school students' appearance management behavior turned out to be higher, corresponding to their higher interest in appearance, lower domestic self-concept, and higher social self-concept.

  • PDF

Effect of Addition Lonicera japonica Thunberg on Productivity md Development of Intestinal Organs in Broiler Chickens (금은화 첨가가 육계 생산r성과 장기 발육에 미치는 영향)

  • 조성구
    • Korean Journal of Poultry Science
    • /
    • v.19 no.1
    • /
    • pp.27-34
    • /
    • 1992
  • Seventy-five commercial male day-old broiler chicks were used to investigate the effects of Oxytetracycline(OTC) and Lonicera japonica Thunberg(LJT) to be active in anti-bacteria and anti-virus on the growth rate, carcass rate and various intestinal organs sizes in broiler at 3 wk of age. Five experimental diets were formulated to have similar protein and energy levels, with OTC 0.04% as low-level antibiotics and OTC 0.34% as high-level antibiotics and 0.5%, 1.0%, 3.0% level of LJT. Birds were housed randomly in 15 battery cages. Birds were 3 replicates per treatment and 5 chicks per replicate. In the body gain, 0.5% level of LJT addition grew significantly higher than the other birds. The feed intake and feed efficiency were not significantly between other birds. The addition levels in OTC and LJT did not any consistent effect on the carcass rate. However, the chest meat percentage vs carcass volume in LJT 0.5% treatment and the leg meat percentage vs carcass volume in DTC 0.04% addition level were significantly higher than those of birds fed other diets. The liver weight rate was significantly higher in OTC 0.04% level. However, the 0% and LJT levels did not exert any consistent effect on the weights of gizzard, heart, bursa of fabricius, head and spleen of broilers. The abdominal and gizzard surrounding fat content rate was higher in bird LJT 1.0% level than birds fed other levels.

  • PDF

A Study on the Physical Growth and Health Status of the Freshmen in a Private University (일부사립대학교(一部私立大學校)의 학생(學生)의 성장(成長).발육(發育) 및 건강상태(健康狀態)에 관(關)한 조사연구(調査硏究))

  • Park, Yang-Won;Lee, Pyong-Kap;Park, Soon-Young;Kim, Hyong-Suk;Kim, Jae-Myung
    • Journal of Preventive Medicine and Public Health
    • /
    • v.5 no.1
    • /
    • pp.97-104
    • /
    • 1972
  • For the purpose of ascertaining the status of physical growth and health status of the University Students, an intensive survey was conducted by the authors towards a total of 1,250 (Male 792, Female 458) who passed the written entrance examination at the Kyung Hee University in 1972. The items included the measurements on physical growth, various physical and nutritional indices, status of visual distourbance, dental status and tuberculosis. The findings and results cad be summarized as follows; 1. Physical Growth and Develspment. i) The average of body height by anthropometric was $169.39{\pm}5.05cm$ in male and $157.45{\pm}4.43cm$ in female. ii) The averages of body weight by sex were $59.42{\pm}6.47Kg\;and\;51.81{\pm}5.21Kg$, respectively. iii) The averages of chest-girth were $87.18{\pm}5.30cm\;and\;80.51{\pm}4.53cm$. iv) The averages of sitting-height were $92.21{\pm}2.79cm\;and\;86.28{\pm}2.57cm$. In all cases the male measurements were higher than female. 2. Various ludices about Physical Growth and Development; i) Relative body weights by sex were 35.08 and 32.91, relative chestgirth 51.47 and 51.13, and relative sitting-height 54.43, 54.79, respectively. ii) Rohrer index was 1.222 in males and 1.327 in females, Kaup index 2.071 and 2.089, Verveck index 86.54 and 84.04, and Pelidisi index 91.15 and 93.08, respectively 3. Status of visual distourbance The vision of the students under 0.8 with Landolt's testing chart was 45.4% in left eye and 46.6% in right eye(male: 44.4% and 45.7%, female: 47.2% and 48.0%), while under 0.6 in both visions was 41.0% and 40.5% (male: 40.8% and 40.7%, female: 41.5% and 40.2%), respectively. 4. Dental Status Out of total 19.4% (male 19.2%, female 19.6%) had gingivitis, the female incidence rate of gingivitis was higher than male. Average number of teeth in each subject was 29.6 teeth: male had 29.9 teeth and female had 29.1 teeth. The caries rate was 78.9%(male 75.6%, female 84.5%), the female caries rate was higher than male. Total filing per subject was 35.6% (male 34.0%, female 37.1%), female incidence was higher shan male. The average number of i) Caries per tooth rate was 8.5% in male and 9.2% in female, ii) Missing per tooth rate was 0.3% and 0.2%, iii) Filling per tooth rate was 3.9% and 4.2%. in all cases, the female incidences were higher than the male. The average number of D.M.F. was 3.8 teeth in male and 4.0 teeth in female, female was higher than male. The average rate of D.M.F. was 12.7% in male and 13.7% in female, female was higher than male. 5. Pulmonary infiltration Among the total, 53 students were diagnosed as pulmonary infiltration (tuberculosis), of whom 51 were minimal cases, one were moderately advanced case and one were far advanced case.

  • PDF

Developmental Changes in Histology and Histochemistry of Epididymal Ducts in Korean Native Goats II. Histochemical changes in epididymal ducts (한국재래산양 정소상체관의 발육에 따른 조직 및 조직화학적 변화 II. 정소상체관의 조직화학적 변화)

  • 김성호;김창근;정영채;이재홍;이방환
    • Korean Journal of Animal Reproduction
    • /
    • v.11 no.3
    • /
    • pp.196-205
    • /
    • 1987
  • This study was conducted in order to obtain the informatin of the histochemical changes in each of 6 segments of the epididymal ducts in 32 Korean native male goats. The male goats were examined, dividing into 7 groups, at 4 잔 intervlas from 8 to 32 wks of age. The reuslts obtained were as follows: 1. PAS reaction showed positive on the basal and upper part beyond the nucleus of the peithelium of effernt ductules throughout all the classes of age. It was also positive on the free border and basal and upper part beyond the nucleus of the caput, on the free border andbasal parts of the corpus, and on the basal part of the cauda of the epididymal epithelium. 2. Acid phosphatase reaction was negative on the every part of epididymal epithelium at the age of 8 weeks, however, with the aging it became strangly positive on the areas between the free border and the nucleus, and moderately positive on the basal part of epithelium of the caput and corpus. In the free border adn basal part of the cauda, it was slightly positive. alkaline phosphatase reactin was negative on the every part of epididymal epithelium until 12 weeks of age. From 16 weeks, free border of epididymal epithelium becaqme slightly positive, and from 20 weeks, the reaction became stronger on the basal part but weekend on the free border with the aging. 3. In the sudan black B staining, many blue black granules between the free border and the nucleus, some granules on the basal part, and a few granules on the cytoplasm around the nucleus of the epididymal epithelium were observed from 8 weeks of age as early, and the granules were increased in number with the aging. 4. In Azan staining, reddish violet granules below the nucleus and blue granules on the upper part beyond the nucleus in some cells of epithelia of efferent ductules were noted at 12th and 16th week, and after 24th week, the granules were decreased with the aging. Golgi apparatus were clearly observable on the upper part beyond the nucleus of all parts of epididymal epithelium from 8th week, and also number of intracytoplasmic vacuoles(smaller ones on the upper part and larger ones on the basal part beyond the nucleus) and fine granules were increased with the aging. 5. In the toluidin blue staining, reddish purple granules on the basal part of the epithelium in all the parts of epididymal ducts, particularly brilliant in the cauda, were observed from 8th week as early. 6. In the Cowdry staining, numerous mitochondria, according to aging, were observed between the free border of epithelium and the upper part beyond the nucleus particularly in the catus and corpus of the epididymal ducts.

  • PDF

A Study on the Bone Density in Newborn Infants - Difference of the Bone Mineral Density according to the Gestational Age and the Birth Weight - (신생아 골밀도에 관한 연구 - 재태 연령과 출생 체중에 따른 골밀도의 차이 -)

  • Lee, Eun-Sil;Shin, Son-Moon;Moon, Han-Ku;Park, Yong-Hoon;Choi, Kwang-Hae
    • Journal of Yeungnam Medical Science
    • /
    • v.14 no.2
    • /
    • pp.383-392
    • /
    • 1997
  • To study the differences of bone mineral density according to the gestational ages and the birth weight and get a reference data for the diagnosis of metabolic bone diseases in the newborn infants, bone mineral densities of the lumbar vertebrae were measured in fifty-three newborn infants born at Yeungnam University Hospital from March 1, 1995 to February 28, 1997, whore gestational ages were between $28^{+3}$ and $41^{+3}$ weeks and who had no intrauterine growth retardation, using dual energy X-ray absorptiometry (X-R 26, Norland, USA) within seven days of life. 1. There was no sexual difference in bone mineral density. The bone density increased significantly as gestational age increased from $0.149{\pm}0.009g/cm^2$ at 28-30wks to $0.229{\pm}0.034g/cm^2$ at 39-41wks of gestational age (p<0.05), but there was no significant difference between bone mineral densities at 33-34 wks and 35-36wks. There was positive linear correlation between gestational age and bone mineral density ($Y=7.5{\times}10^{-3}X-0.082$, r=0.7018, p<0.001). 2. The bone mineral density increased significantly as the birth weight increased from $0.158{\pm}0.020g/cm^2$ in 1,000-1,499 g to $0.251{\pm}0.021g/cm^2$ in 3,500-4,000 g of the birth weight (p<0.05), but there was no significant difference between bone mineral densities in 1,000-1,499 g and 1,500-1,999 g of the birth weight. There was positive linear correlation between the birth weight and the bone mineral density ($Y=3.9{\times}10^{-5}X+0.093$, r=0.7296, p<0.001). There were positive correlations between the bone mineral density and gestational age, and between the bone mineral density and the birth weight. It can be used as a reference data for the further study on the bone mineral metabolism in the newborn infants including preterm babies.

  • PDF

Bioactivity of the Extract of Coptis chinensis: In-vitro Antifungal Activity against Phytophthora capsici and Growth-promotion Effect in Red-pepper (황련 추출물의 고추역병에 대한 In-vitro 항진균 활성 및 고추 생육촉진 효과)

  • Ahn, Seon-Mi;Lee, Dong-Sin;Kim, Mi-Sun;Choi, Su-Ji;Choi, Chung-Sik;Lee, Jung-Bok;Jang, Han-Su;Sohn, Ho-Yong
    • Microbiology and Biotechnology Letters
    • /
    • v.37 no.3
    • /
    • pp.280-286
    • /
    • 2009
  • To investigate anti-phytopathogenic fungal activity of Coptis chinensis, the methanol extract and its organic solvent fractions were prepared. Using the extract and the fractions, in-vitro spore-germination inhibition and mycelial-growth inhibition activities were evaluated against Colletotrichum gloeosporioides, Phytohpthora capsici, Pyricularia grisea, Rhizoctonia solani, Botryosphaeri dothidea, Glomerella cingulata, respectively. Treatment of the methanol extract (500 mg/mL) into the spore of phytopathogenic fungi completely inhibited germinations for 5 days, except B. dothidea, and showed strong antifungal activities against P. grisea and B. cinerea, and antioomycetes activity against P. capsici. The minimal growth inhibition concentrations of the methanol extract against P. grisea, B. cinerea and P. capsici were 300, 300, and 500 mg/mL, respectively. For practical application of C. chinensis in red-pepper field, the hot-water extract (1,000 mg/mL) was prepared in commercial facility, after evaluation of heat stability and solvent-extraction yields of antifungal substances. The 3-times leaf-spray of the extract from June to August, 2008 did not show any deleterious effect to red-pepper. In fact, the leaf-spray promoted plant growth including leaf, root and fruit. The average weight and rind of each fruit were increased to 119% and 117% comparison to those of without treatments. Our results suggest that C. chinensis is a useful source for control of red-pepper diseases and plant growth.

Comparative study of newborns of Asian immigrant and Korean women (외국인과 내국인 산모 출생아의 비교 연구)

  • Park, Hee-ok;Lim, Jae-woo;Jin, Hyun-seung;Shim, Jae-won;Kim, Min-hee;Kim, Chun-soo;Kim, Eun-ryoung;Kim, Seung-youn;Park, Sang-kee;Lee, Jung-joo
    • Clinical and Experimental Pediatrics
    • /
    • v.52 no.10
    • /
    • pp.1119-1126
    • /
    • 2009
  • Purpose:This study compares the maternal characteristics and birth outcomes of infants of Asian immigrant mothers from developing countries with those of the infants of Korean mothers. Methods:In this multicenter and retrospective study, Asian immigrant women who had delivered between January 2005 and June 2008 were enrolled from9 Medical Centers. In all, 333 births to Asian immigrant women from developing countries (Asian-Korean infants) were included in this study. In addition, sex-, birth year-, and gestational age-matched 333 neonates born to Korean mothers were selected as the control group (Korean infants). On the basis of the hospital data, we investigated the nationality, age, and medical history of the mothers and compared the incidence of congenital infection, Apgar score, weight, height, and head circumference of Asian-Korean infants with those of the Korean infants. Results:The average maternal age of Asian women from developing countries at birth term was 26.7 years, which was significantly lower than that of Korean women (30.8 years, P<0.05). The birth weight of Asian-Korean infants (2,869 g) was significantly smaller than that of Korean infants (2,995 g, P<0.05). There was a significant difference in the incidence of congenital syphilis infection between the Asian-Korean infants and Korean infants (5 cases vs. 0 case, P<0.05). Conclusion:There were significant differences in the perinatal outcomes between the Korean and Asian-Korean infants. A multicenter large-scaled study should be performed to analyze the perinatal outcomes of Asian-Korean infants.

Comparison of Life Style, School Achievement and Snaking Behaviors among Underweight and Overweight Adolescents (일부 저체중과 과체중 청소년의 생활습관, 학업성취도 및 간식섭취행동의 비교)

  • Kim, Hye-Kyung;Kim, Jin-Hee
    • Journal of Nutrition and Health
    • /
    • v.44 no.2
    • /
    • pp.131-139
    • /
    • 2011
  • The purpose of this study was to obtain information related to life style characteristics, school achievement and snacking behaviors among underweight and overweight adolescents in Ulsan area. The survey was carried out by self-questionnaires with 464 adolescents (333 underweight and 131 overweight). The results were as follows: Average BMI of the subjects was $19.81{\pm}3.10\;kg/m^2$ which was normal range, but average BMI of underweight and overweight were $16.90{\pm}1.19\;kg/m^2$ and $25.38{\pm}2.16\;kg/m^2$ respectively. The 49.5% of underweight and 94.7% of overweight students have correct perception about their body image. In the sleeping time, 58.9% of underweight and 66.4% of overweight students go to bed after PM 12 o'clock. In the regularity of eating breakfast, 68.5% of underweight and 67.9% of overweight students skipping breakfast at least 5 times per week. 32.6% of the subjects had snack once or more a day. Underweight students had more frequently ate snack than overweight students. The criteria of choosing snack were taste (77.4%), nutrition (9.3%), and price (6.3%). Food as snack they frequently had fruits, milk & milk products, cookies in order. Underweight students had more dodkboki & sundae, candy & chocolate and cake & bread than overweight students, although overweight students had more milk & yogurt than underweight students. The group who had a higher school record, they significantly had more fruits, milk & milk products (p < 0.01) and had not less nutritious foods (p < 0.001). This study may provide basic information on weight status, sleeping and snacking behaviors of adolescents. Therefore they should have nutrition education program to improve their life style and snacking patterns for underweight and overweight adolescents toward healthy weight.

CASE REPORTS OF TREATMENT OF ERUPTION-DISTURBED MX. FIRST MOLAR BY SURGICAL EXPOSURE (맹출 장애를 가진 상악 제1대구치의 외과적 노출을 이용한 치험례)

  • Seok, Choong-Ki;Nam, Dong-Woo;Kim, Hyun-Jung;Kim, Young-Jin;Nam, Soon-Hyeun
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.31 no.1
    • /
    • pp.11-18
    • /
    • 2004
  • The eruption of permanent teeth represents the movement in the alveolar bone before appearance in oral cavity, to the occlusal plane after appearance in oral cavity, and additive movement after reaching th the occlusal plane. Tooth eruption is mostly controlled by genetic signals. The eruption stage is divided to preeruptive alveolar stage, alveolar bone stage, mucosal stage according to the process of growth and development. If the disturbance is occured in any stage of eruption, tooth does not erupt. The cause of eruption disturbance are ectopic position of the tooth germ, obstruction of the eruption path and defects in the follicle or PDL. In the treatment of eruption disturbance, surgical procedures are commonly used. There are three kind of surgical procedure ; surgical exposure, surgical repositioning, surgical exposure and traction Surgical exposure is basic procedure. This involves removal of mucosa, bone, lesion that are surrounding the teeth, dental sac when necessary to maintain a patent channel between the crown and the normal eruptive path into the oral cavity. To ensure this patency, many techniques including cementation of a celluloid crown, packing with gutta-percha or zinc oxide-eugenol, or a surgical pack, are used. When surgical exposure is conducted, operators should not expose any part of cervical root cement and not injure periodontium or root of adjunct tooth. After surgical exposure, tooth should be surrounded by keratinized gingiva. There is direct relationship between the extent of development of pathophysiologic aberrations and the intensity of the manipulative injury inflicted on the tooth by surgical treatment, so operator should consider this thing. In these cases, surgical exposure is conducted on Maxillary 1st milars that have a eruption disturbance and improve the eruption disturbance effectively.

  • PDF

Prediction of Changes in Habitat Distribution of the Alfalfa Weevil (Hypera postica) Using RCP Climate Change Scenarios (RCP 기후변화 시나리오 따른 알팔파바구미(Hypera postica)의 서식지 분포 변화 예측)

  • Kim, Mi-Jeong;Lee, Heejo;Ban, Yeong-Gyu;Lee, Soo-Dong;Kim, Dong Eon
    • Korean journal of applied entomology
    • /
    • v.57 no.3
    • /
    • pp.127-135
    • /
    • 2018
  • Climate change can affect variables related to the life cycle of insects, including growth, development, survival, reproduction and distribution. As it encourages alien insects to rapidly spread and settle, climate change is regarded as one of the direct causes of decreased biodiversity because it disturbed ecosystems and reduces the population of native species. Hypera postica caused a great deal of damage in the southern provinces of Korea after it was first identified on Jeju lsland in the 1990s. In recent years, the number of individuals moving to estivation sites has concerned scientists due to the crop damage and national proliferation. In this study, we examine how climate change could affect inhabitation of H. postica. The MaxEnt model was applied to estimate potential distributions of H. postica using future climate change scenarios, namely, representative concentration pathway (RCP) 4.5 and RCP 8.5. As variables of the model, this study used six bio-climates (bio3, bio6, bio10, bio12, bio14, and bio16) in consideration of the ecological characteristics of 66 areas where inhabitation of H. postica was confirmed from 2015 to 2017, and in consideration of the interrelation between prediction variables. The fitness of the model was measured at a considered potentially useful level of 0.765 on average, and the warmest quarter has a high contribution rate of 60-70%. Prediction models (RCP 4.5 and RCP 8.5) results for the year 2050 and 2070 indicated that H. postica habitats are projected to expand across the Korean peninsula due to increasing temperatures.