• Title/Summary/Keyword: early life history

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Life History Research on the Developmental Process of Mothers Rearing Children with Down Syndrome (다운증후군 자녀 양육경험을 통한 어머니의 성장 과정에 관한 생애사적 연구)

  • Kang, Eun Shin;Kim, Kyeong Shin
    • Journal of Families and Better Life
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    • v.34 no.4
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    • pp.89-109
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    • 2016
  • The purposes of this study were to analyze and understand the life of mothers rearing children with Down syndrome and to present basic data for overcoming the difficulties of those families. For these purposes, this study made use of the phenomenological analysis and approach with a qualitative research method. The subjects of this study are 4 mothers rearing children with Down syndrome who are beyond school age. The results were as follows. First, the reason why mothers with Down syndrome children went through psychological shock and horror was the social stigma due to the unusual appearance of children with Down syndrome. Second, the isolation with in the public education system was disclosed as a factor causing much sorrow and pain. Through this, we can recognize the importance of ensuring the equal right to receive education of children with Down syndrome. Third, the period which the mother experienced most shock and confusion was right after finding out about the disability that her child has. So, we can identify the importance of early intervention providing psychotherapy and rearing service to the parents. Fourth, the crucial factor that relieved pain and pressure from mothers was social support including family. Therefore, the social support system for mothers with Down syndrome children has to be developed and strengthened. Fifth, the crucial factor that made mother grow up during rearing experience was the reestablishment of cognition about the desired role of mothers. Through this, we can identify the importance of the mental transition process to independent thinking.

Developmental Characteristics of Eggs and Yolk Sac Larvae of Korean Striped Bitterling, Acheilognathus yamatsutae (Cyprinidae), Spawning in Mussels

  • Song, Ho-Bok;Son, Yeong-Mok
    • The Korean Journal of Ecology
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    • v.28 no.4
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    • pp.193-198
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    • 2005
  • This study investigated the characteristics of the eggs and yolk sac larvae of Korean striped bitterling, Acheilognathus yamatsutae, spawned and grown In mussels. The number of eggs in the ovary was small ($358{\pm}108$ SD). The eggs were oval and large, and the formation of the perivitelline space was narrow. The eggs were hatched at only 41 hours after fertilization but the hatched larvae were underdeveloped. The development of yolk projection and minute tubercles on the skin surface was notable, along with the vividly moving tail in the hatched larvae. The yolk projection and minute tubercles were disappeared upon enhancement of the motor ability of the larvae was enhanced. The formation of eyes and body pigments of the larvae was relatively delayed in comparison with that of other cyprinid larvae. After completely consuming the yolks the larvae escaped from the mussel for free swimming and exogenous feeding.

Growth patterns of preterm infants in Korea

  • Lim, Joohee;Yoon, So Jin;Lee, Soon Min
    • Clinical and Experimental Pediatrics
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    • v.65 no.1
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    • pp.1-9
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    • 2022
  • With advancements in neonatal care and nutrition, the postnatal growth of preterm infants has improved; however, it remains an issue. Accurate assessments of growth using a standardized reference are needed to interpret the intrauterine and postnatal growth patterns of preterm infants. Growth in the earlier periods of life can contribute to later outcomes, and the refinement of postnatal growth failure is needed to optimize outcomes. Catch-up growth occurs mainly before discharge and until 24 months of age, and very low birth weight infants in Korea achieve retarded growth later in life. Knowing an infant's perinatal history, reducing morbidity rates during admission, and performing regular monitoring after discharge are required. Preterm infants with a lower birth weight or who were small for gestational age are at increased risk of poor neurodevelopmental outcomes. Furthermore, poor postnatal growth is predictive of adverse neurodevelopmental outcomes. Careful monitoring and early intervention will contribute to better development outcomes and national public health improvements.

Morphological Development of Egg and Larvae of Squalidus multimaculatus (Gobioninae) (점몰개 Squalidus multimaculatus(Gobioninae)의 난 발생 및 자치어 형태 발달)

  • Song, Ha-Yoon;Ko, Myeong-Hun;Seo, In-Young;Moon, Shin-Joo;Bang, In-Chul
    • Korean Journal of Ichthyology
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    • v.29 no.1
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    • pp.52-61
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    • 2017
  • The egg development and early life history of Korean endemic fish, Squalidus multimaculatus (Gobioninae), were investigated. The eggs from the females were obtained by injecting 10 IU/g of human chorionic gonadotropin and inseminated by wet method in the laboratory. The fertilized eggs were 0.8~0.9 mm in diameter and had no oil globules. The embryo began to hatch about 65 hrs after fertilization under water temperature of $24{\pm}1^{\circ}C$. The newly-hatched larvae were 2.5~3.1 mm in total length, and their mouth and anus were not opened. Four days after hatching, the postlarva were 4.0~4.2 mm in total length, and their york sacs were completely absorbed. They entered the juvenile stage when all fin-rays were formed at 30 days after hatching, and their total length were 11.2~15.7 mm. At 45 days after hatching, the external from of juveniles were similar to those of adults (total length were 18.8~22.5 mm), and 80 days after hatching, the external characteristics from of juveniles were same to adults (total length were 25.7~35.9 mm).

Knowledge and Practice of Infection Prevention by Mothers of Young Children (아동초기 자녀를 둔 어머니의 감염예방 지식과 실천)

  • Lee, Dong-Won;Kwon, In-Soo
    • Child Health Nursing Research
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    • v.15 no.3
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    • pp.306-313
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    • 2009
  • Purpose: The purpose of this study was to investigate the knowledge and practice of mothers of young children in infection prevention in everyday life. The results will provide basic data for future interventions for infection prevention in early childhood. Methods: The participants included 313 mothers from three cities in Gyeongnam Province, Korea. The data were collected from December 2007 to January 2008 using a self-report questionnaire developed by there searchers and analyzed using the SPSS program. Results: Average rate for correct answers of knowledge of infection prevention was 81.1 %, and the mean score of practice in infection prevention was 3.18${\pm}$0.34, out of 5. There was a positive correlation in the relationship between knowledge and practice (r=.236, p<.001). There were differences in knowledge and practice according to mothers' education, monthly family income, and type of residence, but there were no differences according to number of children and admission history of child for infectious disease. Conclusion: The level of knowledge and practice infection prevention by the mothers was not enough to prevent infection in early childhood. Therefore,. effective strategies should be developed to help mothers in the prevention of infections during early childhood.

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Spawning Behavior and Early Life History of Aucha Perch, Coreperca kawamebari from Korea (한국산 꺽저기 (Coreoperca kawamebari)의 산란습성(産卵習性) 및 초기생활사(初期生活史))

  • Han, Kyeong-Ho;Park, Joon-Taek;Kim, Byeong-Mu;Oh, Sung-Hyun;Lee, Sung-Hun;Jin, Dong-Soo
    • Korean Journal of Ichthyology
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    • v.12 no.2
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    • pp.129-136
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    • 2000
  • The aucha perch, Coreoperca kawamebari was collected in Tam-jin river from February to June 1998. It was reared in the laboratory and observed the spawning behavior and early life history. Spawning season was from mid of April to the end of May in the Tam-jin river. The fertilized eggs were demersal of adhesive, transparent and spherical in shape. Egg diameter was 2.21~2.65 mm with several oil globule of 0.058~0.343 mm. Hatching occurred about 194 hours 23 minutes after fertilization at water temperature of $18{\sim}22^{\circ}C$. Newly-hatched larvae were 5.09~5.68 mm in total length(TL, mean: 5.38mm) with 10~11+18=28~29 myotomes and opened mouth and anus. Melanophores were distributed on the eye lens, on the head, around the yolk, on the dorsal part and the abdominal region of the trunk. After hatching 5 days larvae attained 6.12~6.68 mm in TL (mean: 6.47 mm), and the yolk sac was completely absorbed and transformed to postlarva stage. The larvae reached to the juvenile stage with all the fins were formed with complete set of fin rays (D. XII-12~13; A. III-8~10; P. 11~13; V. I-4~5) at the 22 days after hatching and of the larvae was 11.54 mm in total length. In 32 days after hatching, the juvenile was 13.05 mm in TL. This period was similar to adult in body form and the spot.

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Homeless Risk Factors through the life courses : Focusing on the childhood adverse experiences (생애과정에 걸친 노숙 위험요인에 관한 탐색적 연구 : 성장기 불행한 경험을 중심으로)

  • Kim, Soyoung
    • Korean Journal of Social Welfare Studies
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    • v.48 no.1
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    • pp.143-171
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    • 2017
  • This study aims to examine experiences of homeless risk factor before becoming the homeless focusing during their childhood period. This study underscore their victimization experience in their previous life with life history interviews of 60 homeless adults. As a result, this study identified various individual homeless risk factors they experienced for a long time. Also the risk factors were interactive, amplified and affect becoming homeless in the end. Moreover the results proved different characteristics between the group according how often they experienced homeless risk factors. These results show that the individual factors emerging homeless also start early stages of their life and those were invincible misfortune and victimization. These findings suggest that the government policy and proactive intervention in order to prevent homeless in the early stage need to be established and have more concerns about high risk youth.

"All This is Indeed Brahman" Rammohun Roy and a 'Global' History of the Rights-Bearing Self

  • Banerjee, Milinda
    • Asian review of World Histories
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    • v.3 no.1
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    • pp.81-112
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    • 2015
  • This essay interrogates the category of the 'global' in the emerging domain of 'global intellectual history'. Through a case study of the Indian social-religious reformer Rammohun Roy (1772/4-1833), I argue that notions of global selfhood and rights-consciousness (which have been preoccupying concerns of recent debates in intellectual history) have multiple conceptual and practical points of origin. Thus in early colonial India a person like Rammohun Roy could invoke centuries-old Indic terms of globality (vishva, jagat, sarva, sarvabhuta, etc.), selfhood (atman/brahman), and notions of right (adhikara) to liberation/salvation (mukti/moksha) as well as late precolonial discourses on 'worldly' rights consciousness (to life, property, religious toleration) and models of participatory governance present in an Indo-Islamic society, and hybridize these with Western-origin notions of rights and liberties. Thereby Rammohun could challenge the racial and confessional assumptions of colonial authority and produce a more deterritorialized and non-sectarian idea of selfhood and governance. However, Rammohun's comparativist world-historical notions excluded other models of selfhood and globality, such as those produced by devotional Vaishnava, Shaiva, and Shakta-Tantric discourses under the influence of non-Brahmanical communities and women. Rammohun's puritan condemnation of non-Brahmanical sexual and gender relations created a homogenized and hierarchical model of globality, obscuring alternate subaltern-inflected notions of selfhood. Class, caste, and gender biases rendered Rammohun supportive of British colonial rule and distanced him from popular anti-colonial revolts and social mobility movements in India. This article argues that today's intellectual historians run the risk of repeating Rammohun's biases (or those of Hegel's Weltgeschichte) if they privilege the historicity and value of certain models of global selfhood and rights-consciousness (such as those derived from a constructed notion of the 'West' or from constructed notions of various 'elite' classicized 'cultures'), to the exclusion of models produced by disenfranchised actors across the world. Instead of operating through hierarchical assumptions about local/global polarity, intellectual historians should remain sensitive to and learn from the universalizable models of selfhood, rights, and justice produced by actors in different spatio-temporal locations and intersections.

A Study on Dynamic Analysis and Fatigue Life of the Belt in the OHT Vehicle (OHT 차량 벨트 동특성 및 피로 수명에 관한 연구)

  • Jung Il-Ho;Kim Chang-Su;Cho Dong-Hyeob;Park Joong-Kyung;Park Tae-Won
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.29 no.8 s.239
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    • pp.1085-1092
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    • 2005
  • The OHT(Over Head Transportation) Vehicle transports heavy products quickly and repeatedly at the industrial workplace. The belt in the OHT vehicle is used to support the weight of the OHT Cage. The fatigue of the belt is caused by the dynamic load during the operation time. Since the fatigue fracture of the belt affects the safety at the workplace, the correct prediction of the dynamic load is necessary to calculate the fatigue life of the belt on the design step. In this paper a computer aided analysis method is proposed for the belt in the early design stage using dynamic analysis, stress analysis, belt tensile test, belt fatigue test and fatigue lift prediction method. From the dynamic load time histories and the stress of the belt FE model, a dynamic stress time history is produced. Using linear damage law and cycle counting method, fatigue life cycle is calculated. The method developed in this paper is used to reduce the time and cost for designing the OHT belt in different environment and condition.

Effects of early nonparental care on preschoolers' socioemotional behaviors (영·유아기 타인양육이 학령전 어린이의 사회정서적 행동에 미치는 영향)

  • Park, Kyung Ja
    • Korean Journal of Child Studies
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    • v.13 no.2
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    • pp.217-228
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    • 1992
  • The purpose of this study is to examine the effects of early full-time nonparental care during infancy/toddlerhood on children's socioemotional behaviors during the preschool period. Subjects for this study were 105 three- to five-year-olds from middle-class families in the U. S. A. Children were assigned to one of three groups according to their early care history. Children's social interactions with peers and caregivers during indoor free-play sessions in day care centers were observed for 20 minutes. The head teachers rated the children's social and emotional behaviors on two questionnaires. Mothers completed the Attachment Q-sort for attachment assessment for the preschoolers. In addition, mothers were asked to fill out a questionnaire on their parenting practices. Children who had received full-time nonparental care during infancy and/or toddlerhood were rated by their teachers as being more intellectually competent than children who did not receive full-time nonparental care during first three years of life. They were, however, rated by teachers and were observed by the researcher as being more aggressive than children with no full-time nonparental care. These children were observed to engage in less wandering/onlooking behaviors than children who had not had any full-time nonparental care. Children's attachment security scores and dependency scores did not differ as a function of early nonparental care histories. When the effects of early care patterns, sex of child, and current attachment security to mothers on aggressive behaviors of the preschoolers were examined by a hierarchical regression model, then any "pure" effects of nonparental care and of attachment security on child aggression were minimal after controlling for family background, child care center quality, and maternal childrearing practices. Strong buffering factors for the preschool children (family characteristics, parenting styles, and high quality nonparental care) mediated a possible risk factor of early nonparental care and promoted optimal outcomes for the children.

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