• 한국가금학회지
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• 제6권1호
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• pp.31-37
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• 1979

본 연구는 대한양계학회의 능력검정소에서 1966년부터 1976년까지 8회에 걸쳐 실시한 143 계군에 12,227수의 산란계 경제능력검정 성적을 사용해서 각 형질의 경제적 중요도의 구명을 목적으로 실시한 후 일본에 있어서 총 15개 검정장에서 1962년부터 1966년까지 사이에 얻어진 247계군 12,350수의 산란계 경제능력 검정의 분석 결과와 비교하였다. 본 연구에서 취급한 형질은 성계생존율, 초산일령, 산란율, 사료요구량, 란중, 체중, 수익의 7가지 형질이고, 일본의 자료에 대해서는 유성율이 첨가된 8가지 형질이다. 양국의 자료에 대해서 동일형질의 평균치는 본 연구자료가 란중을 제외한 모든 형질이 일본의 그것에 비해서 다소 열등하였다. 각 형질간의 상관관계를 비교한 바 산란율과 체중, 란중과 수익간의 상관을 제외하면 양국의 성적은 대체로 비슷한 경향이 이정되었다. 수익에 대한 각 형질의 기여도가 가장 큰 형질은 본 연구의 경우에는 사료요구율, 란중, 산란지수, 초산일령, 체중, 생산율의 순이었으나 일본의 경우에는 사료요구율, 생존율, 산란율, 초산일령, 란중, 체중의 순이었다. 본 연구 자료에 대해서 각 형질의 수준은 우리나라의 개량목표 수준까지 변화시킬 경우 얻어지는 직접적 그리고 상관반응에 의한 간접적인 증수를 추정한 결과 산란계의 개량에 있어서 산란지수, 사료요구율, 생존율에 개량의 중점을 두는 것이 바람직한 것으로 생각된다. 여기에서 얻어진 결과는 양계가가 품종을 선정할 때 사양관리의 중점방향을 어디에 둘 것을 결정할 경우 그리고 육종을 수행하는데 필요한 각 형질의 경제적 중요성 등의 정보를 제공하는 것이다.

• Korean Chemical Engineering Research
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• 제53권4호
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• pp.457-462
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• 2015

헤미셀룰로오스 가수분해액은 당은 물론 카르복시산, 푸란유도체 및 페놀화합물과 같은 여러 종류의 에탄올 발효 저해물질을 포함한다. 본 연구에서는 이런 저해물질들을 제거할 수 있는 분리 기술로서 에멀젼형 액막법이 적용되었다. 기본 모사 헤미셀룰로오스 가수분해액은 당인 자일로스, 용매인 묽은 황산 수용액과 카르복시산인 초산으로 구성되었으며, 필요에 따라 푸란유도체인 푸르푸랄 또는 페놀화합물인 p-hydroxybenzoic acid(HBA)가 그 가수분해액에 추가되었다. 본 연구에서 고려된 모든 에멀젼형 액막계에서 약산인 초산과 HBA는 선택적으로 제거가 가능하였지만, 알데히드인 푸르푸랄은 상당히 제거하기가 어려웠다. 또한, 기본 모사 가수분해액에 HBA가 추가된 에멀젼형 액막계에서 추출제로 tributyl phosphate를 사용하여 원료상에 있는 초산과 HBA를 99%까지 동시에 선택적으로 제거할 수 있었다.

• 한국식품저장유통학회지
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• 제20권4호
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• pp.564-572
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• 2013

본 연구에서는 전통 항아리를 이용하여 발효온도 및 여과 방법을 달리한 현미식초를 제조하여 이들의 품질특성을 조사하였다. 초산발효에 사용하는 발효제와 온도에 따라 적정산도는 발효 4~5주에 가장 높았으며, 강제여과가 전통여과방식보다 산도가 더 높게 나타났다. pH는 모든 구간에서 발효가 진행됨에 따라 감소하였고, 당도는 각각의 발효액 모두 초산 생성이 원활할 때는 발효초기와 비슷하게 유지되었지만, 발효액이 과산화 되었을 때는 당도가 낮아졌다. 유기산 함량은 발효온도와 여과방식에는 큰 차이는 없지만 다양한 발효제에 따라 발효 초기에 8종(oxalic, citric, malic, tartaric, succinic, lactic, acetic 및 formic acid 등)이 검출되었고, 발효가 진행되면서 acetic acid가 많이 생성되었다. 총 유리아미노산 함량은 초산 함량이 증가할수록 유지되거나 감소의 폭이 적었으며, 초산함량이 감소하는 발효 6주에 총 아미노산 함량도 급격히 감소하는 것으로 나타났다. 항아리에서 초산발효가 진행됨에 따라 초산함량이 증가할 때 유리 아미노산 함량은 감소하였다. 따라서 본 연구에서는 발효온도 및 여과방식을 달리함에 따라 유기산 및 유리 아미노산 함량의 차이가 큰 것으로 판단되며, 초산 발효액의 경우, 향후 숙성과정에서 유기산 및 유리 아미노산의 변화가 있을 것으로 예상되므로 장기 숙성에 따른 초산 발효액의 품질변화에 대한 연구가 요구된다.

• 한국가금학회지
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• 제17권2호
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• pp.71-78
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• 1990

본 연구는 한국재래오골계의 난형지수 및 난질에 대한 유전력 및 유전상관을 추정하여 효율적인 개량을 위한 육종목표의 설정과 선발을 수행하는데 필요한 기초 자료를 얻고자 충남대학교 농과대학 동물사육장에서 1987년 6월 18일부터 1989년 4월 6일까지 500일동안 부가계 20수와 모가계 150수에서 생산된 450수의 자손으로부터 계란 58,320개의 난형지수와 난질을 조사하여 얻어진 결과는 다음과 같다. 1. 난형지수 및 난질에 있어서 초산시, 300일영 및 500일영시의 난형지수는 각각 75.044, 74.169및 72.601 이었고, 초산시, 300일영 및 500일영시의 난각두께는 0.342. 0.320 및 0.326mm이었고, 초산시. 300일영 및 500일영시의 난백고는 각각 6.014, 5.161 및 4.807mm이었고, Haugh units에 있어서는 초산시, 300일영 및 500일영시에 각각 83.903, 71.348 및 71.336이었다. 2. 난형지수 및 난질의 유전력 추정치는 부친의 분산성분, 모친의 분산성분 및 양친의 분산성분에서 난형지수는 초산시 0.120~0.827이었고, 300일영시 0.485~0.503이었으며, 500일영시 0.232~0.872이었고. 난각두께는 초산시 0.197~0.819이었으며, 300일영시 0.184 ~0.756이었고. 500일영시 0.279~0.557이었으며, 난백고는 초산시 0.202~0.678이었고, 300일영시 0.119~0.394이었으며, 500일영시 0.225~0.527이었고, Haugh units는 초산시 0.108~0.689이었고, 300일영시 0.237~0.251이었으며, 500일영시 0.354~0.443 이었다. 3. 난형지수 및 난질간의 유전상관에서 난형지수와 난각두께, 난백고, Haugh units간에 각각 0.596~0.909, 0.384~0.943 및 0.121~0.619로 정의 계수이었고, 난각두께와 난백고, Haugh units간에는 각각 0.082~0.596 및 -0.076~0.167이었고, 난백고와 Haugh units간에는 0.374~0.964이었다.

• 여성건강간호학회지
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• 제15권3호
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• pp.205-215
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• 2009

Purpose: This study aims to provide foundational data for preparing for educational programs on the role of a father that are designed to help primiparous spouses carry out the paternal role successfully. Methods: This study was conducted in two OB/GYN clinics and a study sample of 277 primiparous spouses who satisfied the selection criteria was selected. Results: Of the correlation among the childhood experiences, paternal attachment and role of a father of the subjects, the childhood experiences had a positive correlation with the paternal-infant attachment and the role of a father. The paternal-infant attachment and the role of a father also had a positive correlation. Conclusion: An infant is influenced primarily by his or her parents, who will have immense influences on the child's growth and development. Since the paternal-infant attachment is closely related to the role of a father, the development of positive paternal-infant attachment must be preceded in order for a primiparous spouse to carry out the role of a father successfully. Therefore, the development of nursing intervention programs is needed to foster the proper understanding of the role of a father, accommodate the practical needs of primiparous spouses and nurture the paternal-infant attachment for the promotion of realistic, successful role of a father.

• Child Health Nursing Research
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• 제13권3호
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• pp.291-298
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• 2007

Purpose: The father's role performance in this study was identified as the correlation between self-confidence and satisfaction with parenting role by husbands of primiparous. Methods: Participants were recruited at a professional obstetric and gynecologic hospital in Seoul. For use in this study, the tool by Lederman et al. was modified to incorporate father's self-confidence and satisfaction with role performance. Percentages, means, t-test, ANOVA and Pearson Correlation Coefficients were used to analyze the data with the SPSS WIN 11.0m program. Results: The mean score for self-confidence in father's role performance was 35.19 and satisfaction in father's role performance was 45.13. General characteristic significantly related to father's role performance were marriage satisfaction and type of delivery. Also marriage satisfaction and religion were related to satisfaction with role performance in this study. There was a positive correlation between degree of self-confidence and degree of satisfaction in father's role performance. Conclusions: The degree of satisfaction in father's role performance was positively related to self-confidence. So, nursing interventions to improve father's role performance may lead to improvement in father's self-confidence and satisfaction with role performance. Further research is needed to exam causality.

• 대한간호학회지
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• 제22권4호
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• pp.444-453
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• 1992

Recent research reported that postpartum mothers showed different responses according to the type of delivery, and though most mothers preferred vaginal delivery to cesarean section, the numbers of negative comments about the delivery experience were higher in a vaginal delivery group than in a cesarean section group. This study set out to understand the meaning of vaginal delivery as perceived by mother who delivered their babies vaginally and how the mothers felt about their delivery experience. The subjects of this study were 17 primiparous mothers right after vaginal delivery in one university affiliated hospital. Date were collected from March to April, 1992 through interviews lasting 20∼30 minutes using open ended questions about the delivery experience. The data were analyzed by Giorgi's phenomenological analysis method and categorized according to similarity of countent. The meaning of the vaginal delivery was grouped in to four categories and the reason for vaginal in to three. One category of the meaning of vaginal delivery was pain, consisting of the subcategories too painful, want to be rid of the pain, unbearable pain and bearable pain. Another cutegory was a sense of accomplishment containing the subgroups wonderful, good and being finished, The third category was the feeling of becoming a mother The fourth category was that of not having any sense yet of the experience. The reasons for preference for vaginal delivery to a cesarean section were categorized in to the instinctive thinking that vaginal delivery was the natural method, a shortened period of recovery and a lower incidence of complications and a stronger feeling of maternal identity.

• 여성건강간호학회지
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• 제5권1호
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• pp.96-110
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• 1999

This study examined the correlation between of self-confidence and satisfaction in maternal role performance among primiparas. The subjects were 144 mothers, who were recruited from four general hospitals in Pusan. The data were collected from May 1. to August 31 in 1997. Self-confidence in ability to cope with tasks of motherhood and mother's satisfaction with motherhood and infant care were measured by the scales developed Lederman and associated(1981). Percentage, t-test, ANOVA, and Pearson Correlation Coefficient were obtained by using SPSS program. The results of the study were summarized as follows, 1. The degree of self-confidence in maternal role performance was above average with a mean score of 2.60. 2. The degree of satisfaction in the maternal role performance was above average with a mean score of 3.20. 3. There were positive correlations between the degree of self-confidence and the degree of satisfaction in the maternal role performance(r=.3035, p<.001). In conclusion, since self-confidence in maternal role performance is positively related to maternal satisfaction in the role performance, nursing intervention to improve maternal role performance may lead mother's increased maternal self-confidence and satisfaction in maternal role performance. Futher research is needed to prove the causality.

• 여성건강간호학회지
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• 제5권1호
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• pp.21-35
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• 1999

The purpose of this study is to investigate the effect of breast-feeding education on skills, attitude, and duration of breast-feeding among primipara mothers. The educational session was offered during the period of June through September at the T medical center in T city. One hundred thirteen primiparas were selected for this study, 61 who received breast-feeding education(lecture, demonstration, and additional telephone counselling) served as the experimental group and 52 who did not as the control. Data collection was done by self-reporting method. the reliability of the instrument was from .77 to .87. Duration of breast-feeding was classified into I through V according to the WHO classification at the time point of 4 weeks of postpartum. The results were as follows : 1. The score for the experimental group on the skills of breast-feeding techniques was significantly higher than those of the control(t=9.12, p=.000). 2. The score for the experimental group in the attitude toward breast-feeding was significantly higher than those of the control(t=6.12, p=.000). 3. Duration of breast-feeding for the experimental group was significantly longer than that of the control at the time of 4 weeks of postpartum($x^2$=20.79, p=.001). In conclusion, the breast-feeding practice can be promoted effectively through the breast-feeding education.

• 여성건강간호학회지
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• 제23권3호
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• pp.210-220
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• 2017

Purpose: The aims of the study were to develop mobile application for postpartum care of first-time mothers and to validate it's effect. Methods: Using a nonequivalent control group pretest-posttest design, 52 first-time mothers were recruited (26 each in experimental and control) and the experimental group used the mobile application for 6 weeks after delivery. Postpartum self-care knowledge and confidence, infant care knowledge and confidence, and postpartum depressive mood (Edinburgh Postnatal Depression Scale) were measured before discharge from the hospital and 6 weeks later. Results: Women who have used the postpartum care mobile application reported higher levels of postpartum self-care knowledge (p=.030) and confidence (p=.023) infant care knowledge (p=.001) and confidence (p=.004), while scores of postpartum depression (p=.021) were lower than those in the control group. Conclusion: The postpartum-care mobile application developed in this research may be effective in reinforcing knowledge and confidence for postpartum self-care and infant care and in reducing postpartum depressive mood.