• Title/Summary/Keyword: 성장과 발달

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Geomorphic Development of Gnamma at the Summit Area of Mt. Geum, Sangju-ri, Namhae-gun, Gyeongsangnam-do (남해군 금산 정상부의 나마(Gnamma) 지형발달)

  • Hwang, Sang-Ill;Park, Hyo-Jung;Park, Kyung-Geun;Yoon, Soon-Ock
    • Journal of the Korean Geographical Society
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    • v.46 no.2
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    • pp.134-151
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    • 2011
  • The types of gnamma at the summit area of Mt. Geum, Sangju-ri, Namhae-gun, Gyeongsangnam-do are classified and geomorphic developments are investigated. The rocks facing the coast show high distributional density of gnamma due to the salt supply from the coast. The water content rate of gnamma distributed in flat rocks at the summit is highest in the bottom area and lowest in the outside area. Moreover, the quartz grains are fallen due to the weathering of feldspar in the crystalline rocks such as granites and the gnamma are merged and expanded as they develop. The average weathering rate of gnamma is 0.04mm/y and it slowed with time. The results on rate indicate that the gnamma are formed and developed at the present rather than the fossil landform or by subsurface weathering.

Perinatal Nutrition, Post-Hatch Holding Time and In Ovo Feeding (부화 전후 영양, 부화 후 유지시간, 그리고 In Ovo Feeding)

  • Moon, Yang Soo
    • Korean Journal of Poultry Science
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    • v.46 no.1
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    • pp.1-10
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    • 2019
  • The most important times during the development of young chicks are the days immediately prior to hatching and the days immediately after hatching, known as the perinatal period. A sufficient supply of nutrients during the perinatal period is a crucial during the late stage of embryonic development and the starvation period of the young chicks. The delayed post-hatch holding time can restrict the development of the gastrointestinal tract, reduce final body weight, impair muscle development, and change immunological capacities. These symptoms are deleterious to the development of young chicks. Therefore, the post-hatch holding time and its influence on the fitness of young chicks are major concerns to the poultry industry. The in ovo feeding is a practical technology for perinatal nutrition to optimize poultry production and for attenuating the stress experienced by fasting young chicks. This study will discuss in ovo feeding and its effect on the development of the chick embryo, the establishment of a healthy microbiota, and the improving immune response.

Clinical and Cytogenetic Analysis of Children with Maternal Chromosomal Balanced Translocation (모체의 염색체 균형전좌를 가진 환아들의 임상적 세포 유전학적 관찰)

  • Lim, Han Hyuk;Jeong, Hee Jeong;Park, Kyung Duk;Kim, Sook Ja
    • Clinical and Experimental Pediatrics
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    • v.48 no.7
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    • pp.701-705
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    • 2005
  • Purpose : Parents' genetic information plays an important role in their children's genetic expression. Human chromosome has 23-paternal chromosomes and 23-maternal chromosomes. Parental chromosomal translocation can induce clinical problems in their children because of imbalance in genetic information. We intent to analyze the cytogenentic and clinical features about children with maternal balanced translocation between chromosome 15 and 18. Methods : We detected by one family's FISH study of chromosome 15. We have evaluated children born to clinically normal parents about peripheral bood analysis, endocrine, metabolic, radiologic study, electroencephalogram and social & intelligence scale. and We analysis their clinical manifestation by hospital records. Results : Patient's father and elder sister are normal clinically and genetically. Her mother's chromosome show balanced translocation, 46, XX, t(15;18)(p11.2;p11.3). One child has 46, XX, der(18) t(15;18)(p11.2;p11.3), mental retardation, growth retardation, speech & social developmental delay, recurrent infection and mild mitochondria dysfunction. Her young brother has 46, XY, der(15) t(15;18) (p11.2;p11.3), mental retardation, aggressive behavior, obesity and speech developmental delay. Conclusion : In this study we observed the children with developmental delay, dysmorphic facial features, mental retardation, growth retardation associated with growth hormone deficiency and aggressive behavior due to unbalanced translocation between chromosome 15 and 18.

Development and Succession of Marine Fouling Organisms on Artificial Substrata (인조기판 위에서 해양 부착생물의 발달 및 천이)

  • 심재형;정문섭
    • 한국해양학회지
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    • v.22 no.4
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    • pp.257-270
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    • 1987
  • Fouling communities developing in Jinhae Harbor and Masan Bay were studied by slide and panel immersion test during the period from Dec., 1982 to Nov., 1983. The total viable count of bacteria was estimated more than 1.7${\times}$ 10$\^$4/CFU/$\textrm{cm}^2$ after 15 days of immersion and 46 taxa of benthic diatoms were classified in micro-community. Progressional change of fouling communities was clearly shown and dominant diatom species are Licmophora flavellata, Navicula grevillei, and Nitzschia closterium Major macrofouling organisms are Mytilus edulis, Balanus amphitrite amphitrite, Hydroides ezoensis, and Celleporina sp. Wet weight production of macrofouling organisms exceeds 500g/100cm$\^$2/ after 5months of immersion. Regional defferences in community development are clearly shown in two study areas, and mainly due to the disparities of physicochemical stability and nutritional status of ambient water. Seasonality of larvae and the growth rate are the important factors in fouling community development. Overall process of community development is as follow : bacteria and diatoms-multicellular algae-barnacle, mussels and polychaete-sponge, anemone and ascidian.

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The Larvae and Juvenile Development of Haddock, Melanogrammus aeglefinus Cultured in Atlantic Canada (Atlantic Canada 해산어 Haddock, Melanogrammus aeglefinus의 자치어 발생 단계)

  • Kim Chi-Hong;Im Jae Hyun;Johnson Stewart C;Hur Jun Wook;Park In-Seok
    • Development and Reproduction
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    • v.8 no.1
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    • pp.11-17
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    • 2004
  • The larvae and juvenile development of haddock Melanogrammus aeglefinus which is significant commercial fish living north Atlantic Ocean are described here. Larvae were reared in laboratory and sampled periodically for developmental study until 67 days after hatching. An increase in total length(TL) of fish indicated continuous growth, described by the growth expression Y=4.07 $e^{0.037}$( $R^{2}$=0.9978). The newly hatched pre-larvae was 4.9 mm in TL with ellipsoid yolk. In 16 days after hatching, larvae attained 6.8 mm in TL, and absorbed the yolk completely to become post-larval stage, but first heterotrophic food could be in 7 days after hatching already. Post-larval stage continued during 16~52 days after hatching with development of organs attachment. In 61 days after hatching with 41.3 mm in TL, the fries became a juvenile stage respectively having small teed lateral line, and a black blotch on the flank same as adults, but chin barbel was not developed yet. It was presumed that haddock changed food and ecological behavior after metamorphosis ken this time.e.

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The Growth and Development of Infants in Orphanage (일 지역 시설 영.유아의 신체 성장과 발달 평가)

  • Kim, Tae-Im
    • Korean Parent-Child Health Journal
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    • v.5 no.2
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    • pp.177-190
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    • 2002
  • This study were conducted to assess the physical growth and developmental status of infants in orphanage in order to provide an empirical data. The subjects for this study were 104 infants and toddlers who were reared in an orphanage in D Metropolitan city. The instrument used for this study were anthropometric assessment and DDST for normative data of development. Data has been collected from September 1st, 1998 to August 31st, 2000 and were analyzed using SPSS/PC(Version 10.0) with frequency, mean, standard deviation, ANOVA and Chi-square test. The results of this study were as follows; 1. 30.8% of infants in orphanage had abnormal weight, 26.9% had abnormal length, and 22.1% had abnormal head circumference and most of them were distributed below 50 percentile of growth chart. 2. 53.8% of infants in orphanage had normal, 27.9% had qustionable, and 18.3% had abnormal developmental screening test results, especially, 31.5% of infants in orphanage ages 3 to 5 years had abnormal developmental screening test results, according to the Denver Developmental Screening Test(DDST). There was a significant developmental delay noted in the language and fine motor-adaptive sector. 3. It is anticipated that developmental delays would increase in severity by older the mean age of orphanage infants and longer the time being raised in orphanage. It would be concluded that the physical growth and developmental status of orphaned infants were very vulnerable and serious and it is suggested that there needed an effective intervention strategies to promote growth and development of infants in orphanage.

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Production of Induced Gynogenetic Diploid Bagrid Catfish Leiocassis ussuriensis (Siluriformes) - II. Viability, Early Growth and Sex Ratio of Gynogenetic Diploidy (대농갱이 Leiocassis ussuriensis (Siluriformes) 자성발생성 이배체 생산 - II. 자성발생성 이배체의 생존율, 초기 성장 및 성비 분석)

  • Park, Sang-Yong;Nam, Yoon-Kwon;Bang, In-Chul
    • Journal of Aquaculture
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    • v.20 no.3
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    • pp.190-193
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    • 2007
  • Viability, early growth and sex ratio of induced gynogenetic diploid bagrid catfish (Leiocassis ussuriensis, Siluriformes) were examined. Survival rates of gynogenetic diploids and normal bi-parental diploids up to 180 days post hatching were not significantly different (P>0.05), and consequently resulted the mean percent survivals of 76% (gynogens) and 78% (bi-parental progeny) at the end of growth trial. Growth in both body weight and total length of gynogenetic diploids was also similar to those of normal diploid controls (P>0.05). Gynogenetic bagrid catfish displayed a similar level of ovarian development when compared to bi-parental diploid females, as judged at 10 weeks post hatching. Sex ratio of bi-parental progeny was normal 1:1 whereas all-femaleness was observed in gynogenetic progeny (P<0.05), suggesting that the genetic sex determination mechanism of this species should be XX-XY based female homogamety.

A Case of asymptomatic Short-chain Acyl-CoA Dehydrogenase Deficiency (무증상의 경쇄 acyl-CoA 탈수소효소 결핍증 1례)

  • Lee, Hwapyung;Kim, Jinsup;Huh, Rimm;Cho, Sung Yoon;Jin, Dong-Kyu
    • Journal of The Korean Society of Inherited Metabolic disease
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    • v.15 no.2
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    • pp.98-100
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    • 2015
  • Short-chain acyl-CoA dehydrogenase (SCAD) deficiency is a rare mitochondrial fatty-acid oxidation disorder that is inherited as an autosomal recessive pattern. SCAD deficiency is caused by mutations in the ACADS gene (Acyl-CoA Dehydrogenase, Short-chain, OMIM #606885), which encodes SCAD, the mitochondrial enzyme that catalyzes the first reaction in the beta-oxidation of fatty acids four to six carbons in length. Here, we describe one Korean pediatric case of SCAD deficiency, which was diagnosed during newborn screening through tandem mass spectrometry. An increased concentration of butyrylcarnitine was detected on the newborn screening test, and the urine organic acid analysis showed increased urinary excretion of ethylmalonic acid. The patient has been asymptomatic and has shown normal growth and development by 8 months of age without any intervention during follow-up period.

Effects of A Sensory Stimulation Program on Growth and Behavioral Development of Infants (감각자극 프로그램이 영아의 성장과 행동발달에 미치는 효과)

  • 김정선
    • Journal of Korean Academy of Nursing
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    • v.29 no.6
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    • pp.1445-1454
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    • 1999
  • This study was designed to investigate the effects of a sensory stimulation program on the growth (weight, height, head circumference, and chest circumference), behavioral development, behavioral states, and the heart rate of the infants. A total of 23 infants of 2 weeks old were divided into sensory stimualtion group (11 infants) and control group (12 infants). The infants of sensory stimulation group had received sensory stimulation for 6 weeks. Sensory stimulation program was composed of tactile and kinesthetic stimulation. We assessed growth, behavioral state and heart rate every week and behavioral development every 2 weeks. The results were as follows: 1. Body weight in sensory stimulation group, from two weeks after the sensory stimulation program, was significantly increased more than control group, but there was no significant difference in height, head circumference, and chest circumference between the two groups. 2. Behavioral developmental score of sensory stimulation group was significantly higher than that of control group from two weeks after the sensory stimulation program. Developmental states of sensory stimulation group showed more 'high average developmental state' than the control group from 4 weeks after sensory stimulation program. 3. Behavioral states of sensory stimulation group after the sensory stimulation program, the 'sleeping state' was significantly increased more than control group. The 'awakening state' and the state of fuss or crying were significantly less than those of the control group. 4. The heart rate of the sensory stimulation group after the sensory stimulation was significantly lower than the control group. These results indicate that the sensory stimulation program decreases heart rate and improves the sleeping state to be effective on promoting the growth and development of the infants. In view of these experiments, we suggest sensory stimulation program might be considered as a nursing intervention for growth and development of the infants not only in clinical settings but also at homes and in the communities.

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Convolution Neural Network based TW3 Maximum Height Prediction System (컨볼루션 신경망 기반의 TW3 최대신장예측 시스템)

  • Park, Si-hyeon;Cho, Young-bok
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.10
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    • pp.1314-1319
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    • 2018
  • The current TW3 - based maximum height prediction technique used in KMAA(Korean Medical Academy of Auxology) is manual and subjective, and it requires a lot of time and effort in the medical treatment, while the interest in the child's growth is very high. In addition, the technique of classifying images using deep learning, especially convolutional neural networks, is used in many fields at a more accurate level than the human eyes, also there is no exception in the medical field. In this paper, we introduce a TW3 algorithm using deep learning, that uses the convolutional neural network to predict the growth level of the left hand bone, to predict the maximum height of child and youth in order to increase the reliability of predictions and improve the convenience of the doctor.