• Journal of Life Science
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• v.32 no.12
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• pp.1005-1012
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• 2022

This study was conducted to investigate the taxonomic composition and diversity of fecal microbiota between birth and weaning stages of Halla horses using 16S rRNA gene amplicon sequencing analysis. Proteobacteria (35.7%) and Firmicutes (45.6%) were identified as the most common phylum in birth and weaning, respectively. Escherichia (19.7%) and Clostridium (14.0%) were observed as the most dominant genus in birth, and Fibrobacter (6.6%) was the highest in weaning. The results of α-diversity showed that the richness and evenness in microbial communities were statistically significant (p<0.001) in birth and weaning. The results of β-diversity indicated that the birth and weaning stages were clearly divided into two groups at the genus and species levels. Permutational multivariate analysis of variance (PERMANOVA) showed that the microbiota composition differences between birth and weaning were statistically significant (q<0.001). A linear discriminant analysis effect (LEfSe) was performed to select taxonomic makers between the birth and weaning stages. On the genus level, Escherichia, Bacteroides, Clostridium, and Methylobacterium were relatively abundant at birth, whereas Fibrobacter was more abundant at weaning. We expect that this research can be utilized as basic data in the identification of microbial communities involved in disease prevention and nutrient absorption in Halla horses.

• Korean Journal of Childcare and Education
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• v.16 no.4
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• pp.1-29
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• 2020

Objective: The present study aimed to explore the experiences of mothers who have abandoned their additional birth plans since their first child was born. Methods: During in-depth interviews, mothers were asked to recall their own experiences of motherhood. The interview data were analyzed using the grounded theory. Results: The central phenomenon was 'The burden of raising a child is too heavy for mothers to carry alone.' The causal conditions were 'First experience: Unpredictable life', 'Physical and psychological difficulty', and 'Spouse's absence.' The contextual conditions were 'Expectations and reality of parenting' and 'Workplace conditions.' The mothers used interaction strategies of 'Defusing conflict only on a surface level: Giving up', 'Reliance on grandmothers', and 'Downgrading career aspirations.' These strategies were mediated by intervening conditions, 'Stereotypes and experiences of non-family nanny', 'Child's development', and 'Family conflict.' The results were 'Endless guilt', 'Ambivalence between independence versus interdependence' and 'Unfairness: Why only me?' Finally, the process of psychological conflict was identified to account for the steps leading mothers to give up on their birth plans. Conclusion/Implications: During the first experience of motherhood, mothers' conflict gets escalated despite their struggles. These experiences might discourage their additional birth plans. These results provide implications for policies to increase fertility rates.

• Korean Journal of Veterinary Service
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• v.14 no.1
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• pp.13-17
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• 1991

This studies were carried out to investigate the changes of blood pictures within 24hrs after birth in Korean native calves. The hematologic values were examined from 300 heads healthy Korean native calves in the area of western farm of Chungnam province. The results obtained are summarized as follows : 1. $Mean{\pm}SD$ values of serum total protein contents within 24 hrs after birth in Korean native calves were $8.42{\pm}0.92g$ / dl and 48.14{\pm}0.93g$ / dl, respectively. 2. $Meant{\pm}SD$ values of RBC count, WBC count, PCV and Hb contents within 24 hrs after birth in Koren native natives were 49.97{\pm}2.56{\times}10^3$ / mm^3$ and $9.88{\pm}2.93{\times}10^3/ mm^3, $ 439.56{\pm}15.42%$ and 441.66{\pm}7.09 %, $$ 12.79{\pm}1.59g$ / dl and 13.$63{\pm}1.87g$ / dl, respectively. 3. 4Meant{\pm}SD$ values of MCV, MCH and MCHC within 24 hrs after birth in Koren native calves were $43.41{\pm}3.09{\mu}mm^3$ and $43.88{\pm}3.31{\mu}mm^3, $ $14.05{\pm}1.22pg $and 414.36{\pm}1.6pg, $ $32.46{\pm}2.47g$ / dl and 432.96{\pm}3.17g$ / dl, respectively.

• Korean Parent-Child Health Journal
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• v.8 no.2
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• pp.147-156
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• 2005

Purpose: The purpose of this study was the influencing variables of maternal weight gain and neonatal birth weight in full term pregnancies. Method: The subjects were 136 mothers in full term pregnancies(38-42 weeks) and her babies who were selected from 2 general hospital in Pusan. The data were collected from June 14th to October 14th in 2004. Data were obtained by questionnaires. Results: The maternal weight gains was lesser that the pregravid weights was the lower (F=3.410, p=.011). The volumes of weight gains of mothers that had alcohol drinking(t=6.259, p=.014), caffeine consumption (t=4.137, p=.044) were lesser than not. And the birth weight were influenced by passive smoking(t=4.017, p=.047), caffeine consumption (t=5.954, p=.016). Conclusion: The results of this research confirm that the maternal weight gains were influenced by pregravid weight, alcohol drink, caffeine consumption. And the birth weight were influenced by passive smoking, caffeine consumption.

• Women's Health Nursing
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• v.19 no.1
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• pp.36-47
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• 2013

Purpose: This study was to explore subjectivity on childbearing in high school students. Methods: A Q-methodology which provides a method of analyzing the subjectivity of each type was used. Forty-three high school students classified 40 selected Q-statements into 9 points standard. The obtained data were analyzed by using the pc-QUANL program. Results: High school students' subjectivity on childbearing were analyzed into two types: Type 1 turned out to be 'FOLS (family oriented life style)' and Type 2 'CINK (couple important no kid)'. Conclusion: In order to resolve such problems as low birth rate and the advanced age of the population, effective youth and adult programs, policy and institution are required. The current demographic, economic and other factors such as personal values and policies may lower birth rate. In particular, youths' need for children and birth rate tend to be lower. There are positive and negative patterns in high school students' subjectivity on childbearing. Thus, national and social efforts are needed to change negative factors into positive ones. In order to maintain positive subjectivity on childbearing in high school students, it is necessary to apply family-centered educational programs and to implement birth-friendly and realistic programs for promoting child birth.

• Asian-Australasian Journal of Animal Sciences
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• v.12 no.7
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• pp.1015-1018
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• 1999

Single trait mixed models have been dominantly utilized for genetic evaluation of the reproductive traits in swine. However employing multiple trait approach may lead to more accurate genetic evaluations. For 5 litter size and litter weight traits of Danish Landrace, genetic parameters were estimated with a multiple trait mixed model. The heritability estimates were 0.02, 0.03, 0.03, 0.05, and 0.07, respectively for litter size at birth, litter size born alive, litter weight at birth, litter size at weaning, and litter weight at weaning. Negative genetic correlations were all positive. The litter weight at birth showed genetic antagonism with litter size born alive (-0.65) and litter size at weaning (-0.31), but positive with litter size at birth (0.47) and litter weight at weaning (0.31). The estimates of environmental correlations were larger than their corresponding genetic correlation estimates except for those between litter weight at birth and the other four traits. This study recommends simultaneous selection for two or more traits with multivariate mixed models in order to improve overall economic response.

• Journal of the Korean Home Economics Association
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• v.32 no.4
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• pp.57-71
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• 1994

The purpose of this research was to study the variables related to the stress and to provide the way of establishing better relationship between aged parents and adult offsprings and the way of effective care-giving. In order to achieve this purpose a survey was conducted by interview using questionaire. The collected data were analyzed by using frequency percentage mean standard deviation factor analysis Pearson's correlation analysis, ANOVA, and stepwise regression analysis. The results of this research were as follows: First The total points of daughter-in-laws' caregicing stress was 38.5 and daughter's caregiving stress was 27.3. Second There were meaningful differences according to living arrangement daughters-in-law age, old mothers' health status. And there were significant. interaction effects among variables of living arrangement and daughters-in-law' age, living arrangement and birth order birth order and old mothers' health status. living arrangement and daughters-in-law' age and old mothers' health status. Third There were meaningful differences according to living arrangement daughter's age. And there were significant interaction effects among variables of living arrangement and daughter's age, daughter's age and birth order, living arrangement and daughter's age and old mothers' health status, living arrangement and birth order and old mothers' health status. Fourth Among daughters-in-law' variables living arrangement age, old mothers' health status have influence on the care-giving stress. Among daughter's variables living arrangement, age, birth order have influence on the care-giving stress.

• Health Policy and Management
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• v.28 no.3
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• pp.233-239
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• 2018

A rapid decrease of total fertility rate to 1.08 in 2005 prompted the Korean government to plan and implement a '5-year plan for ageing society and population policy' starting from 2006. The 1st and 2nd 5-year plans had not shown any discernible impact on the fertility and the 3rd 5-year plan was launched in 2016. However, the fertility rate is going down further. The author reviewed the contents and assessment reports of the fertility promotion plan to suggest ideas for complementing the shortcomings of it. Author defined the major determinants of marriage and child birth as philosophy, politics, sense of value, social norm, culture, healthcare, and education. The plan was examined in view of these determinants. Transformation of Korea from an agricultural society to an industrialized society in a short period of time had brought about changes in most of the determinants of marriage and child birth; in particular philosophy and sense of value. These aspects were not put into consideration in the plan. Author suggested to launch a social education program for the general public to establish a sound philosophy of life, reform the sense of value on family, child birth and education, and cultivate the skill to draw a consensus through discussions on the social issues. A special program to promote marriage of women at the optimum age for child birth was proposed. The government should implement well balanced policy for economic development and labor. Multidisciplinary approach was recommended for these tasks.

• Korea journal of population studies
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• v.6 no.1
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• pp.70-89
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• 1983

China's population and family planning program has heen successful. Women's fertility as measured by total fertility rate (TFR) has declined from 5.8 in 1970 to 2.3 in 1990, accordingly the annual crude birth rate(CBR) has declined from 34 per thousand in 1970 to 21 per thousand in 1989, and the annual natural growth rate from 2.6 percent in 1970 to 1.4 percent in 1989 (Coale and Chen, 1987; SSB, 1991; Gu, 1994). While this is indeed an astonishing achievement for a developing country to have its fertility down to replacement within a short period, some new issues emerging along with the rapid fertility decline require careful considerations. One of them is the uprising of the sex ratio at birth in China. The 1990 population census reported the sex ratio at birth in China of 113.8 in 1989, which is ohviously much higher than the acceptable level of normal ratio around 106. It has received since then a lot of tention in China and abroad, among demographic professionals and governmental agencies alike (Hull, 1990; Johansson and Nygren, 1991; Xuand Guo, 1991; Tu, 1993; Gu and Xu, 1994; among others). Based on the available demographic data and research results this paper will first have a review of the patterns and trends of sex ratio at birth in China, then turn to the immediate causes of abnormal sex ratio at birth and the determinants of the son preference, followed with a conceptual framework for understanding of the phenomenon, and finally the policy implications and recommendations will be discussed.

• Journal of Society of Preventive Korean Medicine
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• v.12 no.2
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• pp.115-130
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• 2008

It is very important problem that exactly distinguish constitution, in Sasang constitutional Medicine. But, it is careless that discuss the propriety of 'Sasang constitution unchangeability theory(四象體質 不變論)'. The foundation of Sasang constitution unchangeability theory is the sentence in DongUi SuSae BoWon Sa-dan theory(東醫壽世保元 四端論) : "The Organ system of Taeyang(太陽), Taeum(太陰), Soyang (少陽) and Soeum(少陰) is the variation of YinYang(陰陽), is firm nature and is unnecessary agreement. (太少陰陽之臟局 陰陽之變化也 天稟之已定 固無可論)". But, the foundation of Sasang constitution unchangeability theory contradict the theory that Organ system(臟腑) is made by deviation of emotions(joy, anger, sorrow and pleasure :喜怒哀樂) or temperament(性情). Because these emotions is revealed after birth(後天), the deviation of Organs system made by deviation of emotions is not innate, is acquired after birth. Therefore, it is necessary to discuss the opinion that Sasang constitution is variable after birth. The conclusion of our study is that Sasang constitution can be variable after birth.