• 한국식품영양학회지
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• 제11권6호
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• pp.683-688
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• 1998

This study was conducted to develop optimal composition of flour brew in order to economically utilize flour brew inoculated by lactic acid bacteria as a starter(mother sponge) in bread-making. Two flour brews were prepared ; one with flour and water, the other with flour, water and NaCl. Various nutrients were added to both flour brews and Lactobacilli deMan Rogosa and Sharpe (MRS) broth to investigate the effect of them on growth and activities of Streptococcus thermophilus, Lactobacillus brevis and their mixed culture in flour brews to be tested with incubation at 37$^{\circ}C$. The growth of Streptococcus thermophilus, Lactobacillus brevis and their mixed culture was stimulated by addition of NaCl with 0.85% concentratin and more by mixed culture than by single lactic acid bacteria, resulting in 3 hrs reduction in cultivation and more by mixed culture than by single lactic acid bacteria, resulting in 3 hrs reduction in cultivation time. the addition of 3% glucose to flour brew with NaCl was observed to enhance acid productioni by mixed culture. Yeast extract greatly affected growth and activities of mixed culture of lactic acid bacteria in flour brew with NaCl and its optimum level of this additive in flour brew with NaCl was approximately 1.0%. The optimal composition of flour brew for mixed culture of lactic acid bacteria was suggested as follows; flour 100g, water 300g, NaCl 3.46g, glucose 12.48g, yeast extract 3.46g.

• The Korean Journal of Legal Medicine
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• 제41권2호
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• pp.41-45
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• 2017

Fetal DNA (fDNA) detection in maternal serum is a challenge due to low copy number and the smaller size of fDNA fragments compared to DNA fragments derived from the mother. Massively parallel sequencing (MPS) is a useful technique for fetal genetic analysis that is able to detect and quantify small amounts of DNA. In this study, seven clinical samples of maternal serum potentially containing fDNA were analyzed with a commercial single nucleotide polymorphism (SNP) panel, the HID-Ion $AmpliSeq^{TM}$ Identity Panel, and the results were compared to those from previous studies. Reference profiles for mothers and fetuses were not available, but multiple Y chromosomal SNPs were detected in two samples, indicating that fDNA was present in the serum and thereby validating observations of autosomal SNPs. This suggests that SNP-based MPS can be valuable for fDNA detection, thereby offering an insight into fetal genetic status. This technology could also be used to detect small amounts of DNA in mixed DNA samples for forensic applications.

• Human Ecology Research
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• 제61권4호
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• pp.635-645
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• 2023

This study examined the trends of domestic academic research on children of divorced families by classifying them by period, method, target, and subject. From 2000 to 2022, 105 papers published in 58 journals were surveyed. In terms of research methods, quantitative research was conducted using questionnaires and panel data. The subjects of the reviewed studies were mainly elementary school children, and there were many studies on both divorced single mother and child families as well as divorced single father and child families. By analyzing the core subjects of the study, papers related to children's personal adaptation accounted for the largest proportion, followed by problematic behaviors, psychological difficulties, such as depression and stress, and relationships. In conclusion, due to the high divorce rate in Korea there is a need to focus academic attention on the children of divorced families. To this end, it is necessary to study the adaptation and protection factors of the children of divorced families. More qualitative research should be conducted on children of divorced families of various ages, not just elementary school students.

• 가족자원경영과 정책
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• 제27권1호
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• pp.25-39
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• 2023

이 연구는 한부모가족의 특성에 따른 가족건강성의 차이를 분석하였다. 가족의 건강성은 오래전부터 생활과학, 가정관리학, 가족자원경영학 등 학문 분야에서 연구해 온 주제이다. 2004년 건강가정기본법 제정을 계기로 가족의 건강성은 순수한 연구주제에 국한되지 않고 정책의 방향성으로 그리고 현장의 사업에 적용되면서 연구 범주가 확장되었고 이를 통해 연구의 실천성도 함께 강화되었다. 따라서 가족의 건강성 척도를 적용하여 실태조사를 할 때 건강성에 영향 미치는 변수를 탐색할 수 있고, 이 결과에 토대하여 가족건강성 향상을 위한 대안을 마련할 수 있다. 이 연구는 2021년도에 개발된 한부모가족 건강성 척도를 사용하여 267명의 한부모가족 여성(어머니)을 대상으로 한 실태조사 자료를 분석하였다. 분석 결과, 한부모가족 생활 기간, 동거가족 유무, 전배우자와 교류, 근로 형태, 가구소득에 따른 한부모가족의 생활 영역별 건강성의 차이를 발견하였다. 연구결과에 근거한 제안점은 다음과 같다. 한부모가족을 위한 정책 설계나 사업 기획에서 한부모가족으로 산 기간을 고려하고 한부모가족 대상 요구조사에 한부모로 산 기간을 포함해야 한다는 점이다. 이를 통해 한부모가족으로 산 기간에 따른 가족의 특성과 요구를 파악할 수 있고 이 자료는 한부모가족을 위한 맞춤형의 사업에 반영될 수 있다. 나아가 전일제로 일하고 있는 한부모가족의 경우 가정경영과 생활설계 영역에서의 가족건강성 증진을 위해 가족자원경영학이 전문성을 가진 시간관리, 생애설계 등의 연구결과를 현장의 사업으로 전환하여 실천성을 강화할 필요가 있다.

• 대한가정학회지
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• 제33권5호
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• pp.51-62
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• 1995

The purpose of this study is to prevent unwed mothers from the view of home-welfare. The main causes of unwed mothers should be reviewed part. The concrete reactions to solve this problem are possible by these studies even though this problem is very complicated related with the matters of individuals, families and our societies. The conclusion to prevent the unwed mothers is : (ⅰ) to establish the right sex morality through the education in families; (ⅱ) the society's role to share the responsibilities and care in single-parent families; (ⅲ) the right sex education in schools and society ; (ⅳ) the governmental aids to enlarge the number of consultation facilities and accomodation places for youths and women. Besides these attempts, the unwed mothers should be aware of the importance and responsibilities of their own and the baby's lives. The responsibility of society also should be focused from the point of family welfare.

• 가정과삶의질연구
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• 제28권5호
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• pp.1-12
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• 2010

This study investigates the mediation effects of affection-rejection parenting in the relationships between reports by mothers in regards to marital conflicts and the behavior and emotional control of preschoolers. The participants were 311 preschoolers and their mothers. A total of 311 preschoolers attended kindergartens or day care centers in Daegu or Gyeongbuk Province. The collected data were analyzed by Pearson's correlation, single and hierarchical multiple regressions, using SPSS Win 15.0. The results are as follows. (1) Mothers' marital conflicts exerted indirect effects on preschoolers' behavioral control mediated by affection parenting. (2) Mothers' marital conflicts exerted indirect effects on preschoolers' behavioral control mediated by rejection parenting. (3) Mothers' marital conflicts partly exerted indirect effects on preschoolers' emotional control mediated by affection parenting. (4) Mothers' marital conflicts partly exerted indirect effects on preschoolers' emotional control mediated by rejection parenting.

• The Journal of the Acoustical Society of Korea
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• 제27권3E호
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• pp.77-83
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• 2008

In the process of the sonar image textures produced, the orientation and scale factors are very significant. However, most of the related methods ignore the directional information and scale invariance or just pay attention to one of them. To overcome this problem, we apply Gabor wavelet to extract the features of sonar images, which combine the advantages of both the Gabor filter and traditional wavelet function. The mother wavelet is designed with constrained parameters and the optimal parameters will be selected at each orientation, with the help of bandwidth parameters based on the Fisher criterion. The Gabor wavelet can have the properties of both multi-scale and multi-orientation. Based on our experiment, this method is more appropriate than traditional wavelet or single Gabor filter as it provides the better discrimination of the textures and improves the recognition rate effectively. Meanwhile, comparing with other fusion methods, it can reduce the complexity and improve the calculation efficiency.

• Journal of Communications and Networks
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• 제11권5호
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• pp.455-463
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• 2009

We consider the challenges of finding good puncturing patterns for rate-compatible low-density parity-check code (LDPC) codes over additive white Gaussian noise (AWGN) channels. Puncturing is a scheme to obtain a series of higher rate codes from a lower rate mother code. It is widely used in channel coding but it causes performance is lost compared to non-punctured LDPC codes at the same rate. Previous work, considered the role of survived check nodes in puncturing patterns. Limitations, such as single survived check node assumption and simulation-based verification, were examined. This paper analyzes the performance according to the role of multiple survived check nodes and multiple dead check nodes. Based on these analyses, we propose new algorithm to find a good puncturing pattern for LDPC codes over AWGN channels.

• Clinical and Experimental Pediatrics
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• 제60권10호
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• pp.307-311
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• 2017

Necrotizing enterocolitis (NEC) is a devastating condition of hospitalized preterm infants. Numerous studies have attempted to identify the cause of NEC by examining the immunological features associated with pathogenic microorganisms. No single organism has proven responsible for the disease; however, immunological studies are now focused on the microbiome. Recent research has investigated the numerous bacterial species residing in the body and their role in diseases in preterm infants. The timing of initial microbial colonization is a subject of interest. The microbiome appears to transfer from the mother to the newborn, as well as to the fetus. Cross-talk between the fetus and fetal microbiome takes place continuously to generate a unique immune system. This review examined the transfer of the microbiome to the human fetus, and its potential relationship with NEC.

• 음성과학
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• 제8권3호
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• pp.43-50
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• 2001

This paper deals with voice similarities between sisters who are supposed to have common physiological characteristics from a single biological mother. Nine pairs of sisters who are believed to have similar voices participated in this experiment. The speech samples obtained from one pair of sisters were eliminated in the analysis because their perceptual score was relatively low. The words were measured in both isolation and context, and the subjects were asked to read the text five times with about three seconds of interval between readings. Recordings were made at natural speed in a quiet room. The data were analyzed in pitch and formant frequencies using CSL (Computerized Speech Lab) and PCQuirer. It was found that data of the initial vowels are much more similar and homogeneous than those of vowels in other positions. The acoustic data showed that voice similarities are strikingly high in both pitch and formant frequencies. It is assumed that statistical data obtained from this experiment can be used as a guideline for modelling speaker identification and speaker verification.