• 한국심리학회지 : 문화 및 사회문제
• /
• 제18권1호
• /
• pp.127-152
• /
• 2012

이 연구의 주된 목적은 유아 어머니와 외할머니 세대의 자녀와 관련된 인식을 비교 분석하는데 있다. 이를 위해 이상적인 자녀 수, 자녀의 성별에 대한 선호도, 노후부양에 대한 기대, 자녀가치를 중심으로 집단별 비교를 하였다. 또한 유아 어머니와 외할머니 세대집단별로 현재의 자녀 수에 영향을 미친 긍정적이고 부정적인 자녀가치 인식을 분석하였다. 최종 분석대상은 총 442명으로서, 유아 어머니 집단 221명과 그들의 어머니인 외할머니 집단 221명이었다. 유아 어머니와 외할머니의 평균 연령은 각각 35.36세, 63.27세였다. 측정도구는 김의철, 박영신, 권용은(2005)의 질문지에 토대하여 연구자가 제작하였으며, Cronbach α=.78-.91이었다. 분석결과는 다음과 같다. 첫째, 이상적인 자녀 수에 대한 인식에서 유의한 차이가 있었는데, 유아 어머니는 2명을, 외할머니는 4명을 가장 많이 지적하였다. 이상적인 아들 수에 대한 인식에서도 유아 어머니는 1명을, 외할머니는 2명을 가장 많이 지적하였다. 둘째, 자녀의 성별에 대한 선호도에서, 유아 어머니는 아들이든 딸이든 상관없다는 인식을, 외할머니는 아들이 1명은 있어야 한다는 인식을 가장 많이 하였다. 또한 한 자녀만 낳을 때, 유아 어머니는 아들이든 딸이든 상관없다는 반응이 대부분이었으나, 외할머니는 반드시 아들을 원한다는 반응이 거의 반수에 가깝게 가장 많았다. 셋째, 외할머니가 유아 어머니보다 아들의 노후부양에 대한 기대가 높았다. 그러나 두 집단간에 딸의 노후부양에 대한 기대에서는 차이가 없었다. 넷째, 유아 어머니와 외할머니 집단은 긍정적 자녀가치와 부정적 자녀가치에서도 매우 유의한 차이가 있었다. 자녀를 가지면 좋은 점으로서, 유아 어머니는 외할머니보다 심리적 즐거움이나 행복과 같이 개인적 측면, 가족 결속력의 증진이나 가족공동체의 형성과 같은 가족관계적 측면을 더욱 강조하였으며, 외할머니는 유아 어머니보다 가문을 잇는다든가 노후대책과 같은 사회적 측면을 더욱 강조하였다. 한편 자녀를 가지면 어려운 점으로서, 유아 어머니는 외할머니보다 부모역할 부담과 같은 개인적 측면을 더욱 강조하였으며, 외할머니는 유아어머니보다 가정불화나 가족관계 악화와 같은 가족관계적 측면을 더욱 강조하였다. 다섯째, 현재 자녀 수에 영향을 미친 자녀가치를 분석한 결과, 유아 어머니 집단 경우에 경제적 부담과 같은 부정적 자녀가치가 의미있는 변인으로 작용하였다. 반면에 외할머니 집단 경우에는 가문을 이음과 같은 긍정적 자녀가치가 영향력 있는 변인으로 나타났다.

• 대한수의학회지
• /
• 제29권4호
• /
• pp.417-424
• /
• 1989

This study was conducted in order to observe the changes in cellular association of seminiferous tubules from 4 to 22 weeks of age and to obtain the cycle and relative duration of seminiferous epithelia from 24 weeks of age in male ducks. Fifety-five male ducks were used in the experiment and divided into 11 groups, consisting of 5 male ducks each, with 2 weeks intervals from 4 to 24 weeks of age. The results were summarized as follows: 1. The body and testes weight showed most rapid increase during 4 to 6 weeks and 18 to 22 weeks of age, respectively. The seminiferous tubules were obruptly enlarged in diameter of tubules during 18 to 22 weeks of age. 2. Gonocytes were seen from 4 to 6 weeks of age, however they were not observed as from 8 weeks of age. Both type Ap spermatogonia and type Ad spermatogonia occured from 8 to 12 weeks of age, while spermatocytes and spermatids were beginning to appear at 16 weeks and 18 weeks of age, respectively. Spermatozoa were first observed at 20 weeks of age. Full spermatogenic activity was completed at the age of 20 weeks. 3. Average paired weight of the testes in male ducks was 78g at 24 weeks of age and its ratio to the body weight was approximately 2.5 percent. 4. Average diameter of seminiferous epithelium at 22 weeks of age was $232{\mu}m$, and average numbers of Sertoli cell, spermatogonia, spermatocyte, spermatids and spermatozoa in the cross section of seminiferous epithelium were 15.30, 59.08, 41.78, 71.11 and 165.30, respectively. Spermatogonia and spermatids were classified into 2 and 4 types, respectively. 5. The cycle of the seminiferous epithelium could be divided into 5 stages at 24 weeks of age. The relative frequencies of stages from I to V were 13.5%, 25.0%, 22.3%, 20.6% and 18.7% respectively. Thus, establishment of spermatogenesis in male ducks were beginning to appear at 20 weeks of age.

• 아동학회지
• /
• 제20권1호
• /
• pp.45-59
• /
• 1999

The purpose of this study was to investigate children's understanding of beliefs by age, type of questions, and experimental conditions. The subjects were 72 children, 12 boys and 12 girls each at 3, 4, and 5 years of age. They were randomly assigned to "standard" or "disappeared" conditions. The results showed that children's understanding of other's beliefs differed by age. The children could explain other's behavior from other's belief, but they could not predict other's behavior from other's false belief. These differences were found only in the "standard" condition.

• 한국HCI학회:학술대회논문집
• /
• 한국HCI학회 2008년도 학술대회 2부
• /
• pp.521-526
• /
• 2008

본 연구에서는 디지털 미디어의 테크놀로지 및 스토리텔링과 이미지의 속성과 원리가 어떻게 새로운 영화의 재현과 사유에 대한 질문을 촉발했는가에서 출발하여, 디지털 시대 영화의 공간 스토리텔링을 세르토의 '공간의 스토리' 개념을 가지고 분석하였다.

• 천문학회지
• /
• 제19권2호
• /
• pp.51-62
• /
• 1986

The Wielen dip over the ragne of 6 < $M_{\upsilon}$ < 9 in the luminosity function (LF) for the solar neighborhood stars could be explained by the combination of two different IMFs which yields the age of 13 billion years of the solar neighborhood. This smaller age than the Galactic age, 15 billion years indicates the slow collapse model of the Galaxy, solving the G-dwarf problem. Two different IMFs suggest two different mechanisms for star formation in the solar neighborhood.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
• /
• pp.89-90
• /
• 2009

이 논문에서는 실제 옹벽 건설현장에서 FBG온도센서와 변형률센서를 이용하여 타설초기의 수축률과 온도를 모니터링 하였다. 실험결과, FBG센서를 이용한 모니터링 기법은 극초기재령의 콘크리트를 모니터링 하기에 매우 실용적인 방법임이 입증되었다. 또한 이 연구에서 사용된 모니터링 기술은 매스콘크리트 구조물의 변형률과 온도 모니터링에 확장하여 적용할 수 있다.

• 한국주거학회:학술대회논문집
• /
• 한국주거학회 2008년도 춘계학술발표대회 논문집
• /
• pp.364-369
• /
• 2008

The public facilities are essential of resident life, the public facilities affect quality of life. The purpose of this study is to analyze the present condition of social welfare service and local cultural welfare program of public facilities complex in Seoul. To achieve these study, www.oklife.go.kr is used for data. The results of this study are showed as followings : First, most of the public facilities' program are composed of educational program and program for middle-age. Second, most of the program for infant and elderly age are composed of welfare program and most of the program for teenager, young people and middle age are composed of educational program.

• Child Studies in Asia-Pacific Contexts
• /
• 제5권1호
• /
• pp.51-62
• /
• 2015

This study examined the role of ethnicity and extended family relationship in the longitudinal patterns of unmarried resident fathers' engagement with young children in the U.S. Using three waves of panel data from the Fragile Families and Child Wellbeing Study (FFCWS), data obtained from 292 respondents were analyzed by the Linear Mixed Effects Regression (LMER) method. Findings suggested that Black unmarried resident fathers exhibited more engagement with their infants at age one than their White counterparts did, but the initial difference reversed by age five as a result of decreasing engagement among Black fathers over time and comparatively increasing engagement among Whites. Results also suggested that Black unmarried resident fathers with a high relationship level with their extended family members exhibited less engagement with their infants than Black fathers with a low relationship level, but the initial difference reversed by age five as a result of decreasing engagement among Black fathers with a low relationship level over time and comparatively increasing engagement among Black fathers with a high relationship level.

• International Journal of Industrial Entomology and Biomaterials
• /
• 제7권2호
• /
• pp.203-208
• /
• 2003

Rearing temperature influences food consumption, conversion and cocoon production in silkworm Bombyx mori L. Young age $({1^st}to{3^rd} instar)$ worms of Pure Mysore, a multivoltine were reared at 26, 28, 30 and $32^{\circ}C$ followed by combinations of these temperature levels during late age $({4^th} and {5^th} instar)$. Food consumption, conversion, larval duration and growth for each instar were recorded. The influence of combinations of these temperature levels during rearing on survival and cocoon production was assessed. Food consumption increased with the temperature up to $4^th$ instar and decreased during $5^th$ instar. Temperature beyond $28^{\circ}C$ during young age followed by higher temperature ($30^{\circ}C$ and above) has shown deleterious effect on cocoon production. The paper discusses the rearing performance in relation to food intake and conversion under the tested temperature levels.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2008년도 추계학술대회
• /
• pp.353-359
• /
• 2008

Somatotype is a very important factor for the comfortable and safe work environments. Many researches are trying to find the characteristics of somatotype according to age. Thus, the main objective of this study is to analyze somatotype of male residents in Seoul. The data used in this study included 267 men subjects who are living in Seoul. In order to analyze a detailed somatotype of citizens, age groups are divided into six groups. In order to compare and analyze data, Coefficient of Variance, Cronbach's Alpha, $R\ddot{o}hrer$ Index and Drop Value were used in this study. The results of this study can be applied to the comfortable and safe work environments for workers.