• 한국초등수학교육학회지
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• 제14권3호
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• pp.583-613
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• 2010

수학불안은 방치할 경우 수학학습 장애 요인으로 작용할 수 있기에 수학불안 요인을 찾고 그에 알맞은 처치 방안을 고안해내는 것이 중요하다 하겠다. 이에 본 연구는 초등학생의 수학불안 감소를 위한 수학 친화적 활동 프로그램을 개발하고, 개발된 프로그램을 적용시킴으로써 수학불안 감소에 어떠한 효과가 있는지를 연구하였다. 서울시 동대문구 I 초등학교 4학년 한 학급 32명의 학생을 연구 대상으로 하였고, 사전 수학 불안 검사를 통하여 나타난 평균값 보다 높은 수학불안 하위 요인인 시험불안 부모의 태도 시간 부족 이해 학습동기의 수학불안 감소에 중점을 둔 수학 친화적 활동 프로그램을 개발하였는데, 이것은 사전 수학불안 검사 결과와 7차 교육과정 수학과 목표 및 내용 체계, 4-가, 나 수학과 교과서의 내용을 분석하여 심리적 처치(긍정적 사고 훈련)와 비심리적 처치(수학활동)를 복합적으로 구성한 활동지 형태의 프로그램이다. 또한 프로그램을 적용한 후, 조사한 수학불안 검사로부터 전체 학생의 수학불안 하위 요인에 대한 유의미한 감소를 확인할 수 있었다.

• 센서학회지
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• 제6권6호
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• pp.500-507
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• 1997

형상기억 합금의 정밀한 동작 온도 조절을 위한 불순물의 종류에 따른 형상기억합금의 열처리 효과를 연구하였다. 급냉온도에 따른 전기 저항 측정으로 Cu-17.25Zn-15Al 및 Cu-17.25Zn-15Al-1Ag/Fe 의 열처리에 의한 마르텐사이트 변태온도의 변화를 측정하였다. 승온율에 따른 DSC(Differential scanning calorimeter) 측정으로 고온모상에서의 상전이 온도와 종류를 구별하였다. 그리고 XRD 측정으로 구조 변화를 관찰하였다. Cu-17.25Zn-15Al 합금에서 고온 모상의 규칙-불규칙 전이온도인 $T_{B2}$, $T_{L21}$은 각각 809K와 610K이고. Cu-17.25Zn-15Al-1Ag 및 Cu-17.25Zn-15Al-1Fe 시료의 $T_{B2}$, $T_{L21}$은 각각 794K, 610K 그리고 803K, 613K 이다. 모든 시료에서 $T_{B2}$ 근방에서의 급냉은 마그텐사이트. 변태온도를 높이지만 $T_{L21}$ 근방에서의 급냉은 마르텐사이트 변태온도를 낮춘다.

• 보건교육건강증진학회지
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• 제1권1호
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• pp.37-56
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• 1983

It is well known that smoking habit is hazardous to health, especially for juvenile. The present study on smoking behavior of high school students in Seoul has two major objectives. The first objective is to find out the smoking behavior of high school students in Seoul. Toward this objective, individual's smoking experience has been examined as ever smoking and never smoking. The second objective is to determine the variables associated with their smoking behavior at the individual, family and school environment levels. For the data collection, the survey was carried out for the four high schools in Seoul from September 15 through October 15, 1982. The major findings are summarized as follows: 1. Smoking behavior of the students 1) Out of 1,278 respondents, 30.2% of them were found to be current smokers and 29.3% of them were former smokers. This implies that around 60% of school students in Seoul have experienced smoking. 2) A significant differences in the current smoking rates between two types of the school students were shown as 19.3% for day-time school and 42% for night-time school. 3) In terms of the current smoking behavior, the students who don't live with parents were higher in smoking rate than those of the living with parents. 2. Attitudes and knowledge about smoking 1) Attitudes of students toward smoking in high school days were shown that around 17% of them agreed with it and around 64% of them disagreed with it. 2) Around 99% of the respondents answered that their smoking is harmful for health. A source of the information about negative effects of smoking on health was 'Radio and TV' (23.9%) as the most influential, 'school teacher' (20.9%), 'Newspaper' (18.2%) and so on. 3. Behavioral analysis for the current smokers 1) The factors affected for motivation in the first smoking were 'curiosity' (59.7%), 'temptation of friend' (19.7%), 'resistance feeling, (7.1%), 'merely interest and pleasure' (6%) respectively. 2) The time of the first smoking was 'third grade of Junior-high school' (31.5%) as highest, 'first grade of Senior-high school' (23.7%) and 'second grade of Junior-high school' (14.7%). 3) An average daily number of cigarettes consuming of current smokers was seven cigarettes. 4. Family and school-mates influences on individual's smoking behavior 1) The data revealed a significant relationship between student's smoking and their parent's smoking behavior. Around 75% of the students whom both parents are smoking have experienced cigarette smoking. It was found that the individual's smoking behavior was influenced by his sibling. Around 65% of the students whom brothers are smoking have experienced cigarette smoking. 2) The 'Smoking-Index' of friendship network or a group explained individual's smoking behavior in the group. The result of dyad analysis of smoking behavior in the friendship network showed that a high score of 'Smoking-Index' tended to be explained an adoption of smoking behavior at the individual level in the group. on the other hand, a low score of 'Smoking-Index' explained non-smoking behavior in the group.

• Child Health Nursing Research
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• 제19권2호
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• pp.111-119
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• 2013

목적 본 연구는 간호대학 4학년생을 대상으로 아동간호 시뮬레이션 실습동안에 관찰된 간호활동을 분석한 기술연구이다. 시뮬레이션 실습동안 간호활동의 빈도와 그 내용을 알아보고자 함이다. 방법 아동간호 시뮬레이션 실습동안 총 36개의 에피소드가 녹화되었다. 녹화된 자료는 언어적, 비언어적으로 전사하고 분석하였다. 도출된 의미단위에서 간호활동의 횟수와 상호작용의 목적을 확인하였다. 결과 각 시뮬레이션 평균 운영 시간은 27분이었고 최소 3분 30초에서 최대 32분 54초로 나타났다. 시뮬레이션 에피소드에서 간호활동은 활력징후 측정, 관련증상 사정, 환자상태확인하기 등과 같은 간호사정 영역과 투약, 미온수 마사지, 수액요법, 산소제공, 흡인, 고혈당 및 저혈당 관리 활동이 포함된 간호중재 영역 그리고 보호자 교육, 처치 및 시술 기준설명, 의료진 간의 의사소통과 같은 의사소통 영역으로 구분되었다. 간호사정 영역의 활동이 가장 빈번하게 이루어지는 것을 확인하였다. 결론 학생들은 시뮬레이션 실습동안 간호사정, 의사소통, 중재영역에서 다양한 간호활동을 경험하는 것으로 확인되었다. 그러므로 시뮬레이션 실습은 강화된 실습경험을 학생들에게 제공하기 위한 하나의 교육전략으로 고려할 수 있겠다.

• 대한지역사회영양학회지
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• 제11권5호
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• pp.551-561
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• 2006

This study was carried out to evaluate the effect of mothers' attitudes on preparing baby foods for their children's food habits and development. The subjects were allocated to 419 preschool children, aged 3 - 5 years. This study surveyed by questionnaire, which was answered by the children's mothers. Subjects were classified by two groups, active and passive, based on their mothers' weaning attitudes. In the active group, mothers tried to make a variety of foods for preparing the baby foods, whereas mothers in the passive group didn't try to make it too much. Family income was higher in the active group and the subject' mothers had more jobs than those in the passive group, whereas their parent's education levels showed no differences. According to Rohrer index, 2.6% of subjects were obese in the active group, whereas 7.7% in the passive group. These data were shown significantly different between the groups. There were no differences in mother's food habits and breast-feeding versus formula feeding between the two groups. However, children's food habits were shown statistically different between the two groups. Higher regularity of meals, higher frequencies of snacks at home, higher frequencies of fruit, com, sweet potato as a snacks and less instant foods were revealed in the active group more than in the passive group. The major problem of children's food habits was an unbalanced diet (52.7%) and the major reasons for unbalanced diet were the taste (58.7%) and the texture (23.2%). The active uoup used more fruits and vegetables than the passive group. Also there were significant differences to solve problems of children's unbalanced diets. In the positive group, 14.4% of mothers tried to develop new cooking methods for solving the problem of an unbalanced diet, but 8.2% did in the passive group. furthermore, 2.3% of mothers in the positive group removed unpleasant items of the food, whereas 6.9% did in the passive. The average nutritional knowledge scores on a 10 scale were 7.2 and 6.9 in active and passive groups, respectively, and they were statistically different. Mothers among the active group explained the knowledge for food and nutrition to their children more than those in the passive group. These results suggest that mothers' attitudes for baby food are an important factor for forming their children's food habits. Therefore, it is necessary to develop a nutritional education program, materials and new recipes for a variety of baby foods to mothers.

• 한국보육학회지
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• 제18권1호
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• pp.77-102
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• 2018

이 연구의 목적은 영아기 아버지 양육참여, 어머니 양육스트레스, 영아 심리사회발달과 유아기 또래상호작용간의 종단적 관계를 잠재성장 모형을 통해 검증하고자 하는 것이다. 이를 위해 한국아동패널조사(PSKC)자료의 0세부터 2세까지와 4세부터 6세까지의 자료인 1차 ~ 3차 년도와 5차 ~ 7차 년도의 종단 자료를 활용해 분석하였다. 분석결과 첫째, 아버지 양육참여 초기값이 유아기 놀이상호작용 초기값에 미치는 영향력에서 어머니 양육스트레스의 초기값은 매개효과가 있는 것으로 나타났다. 둘째, 아버지 양육참여 초기값과 변화율은 유아기 놀이방해 및 단절 초기값과 변화율에 미치는 영향력에서 어머니 양육스트레스의 초기값과 변화율은 매개효과가 있는 것으로 나타났다. 셋째, 아버지 양육참여의 초기값과 변화율은 유아기 놀이상호작용의 초기값과 변화율에 미치는 영향력에서 영아 심리사회발달의 초기값과 변화율은 매개효과가 있는 것으로 나타났다. 넷째, 아버지 양육참여 초기값이 유아기 놀이방해 및 단절 초기값에 미치는 영향력에서 영아 심리사회발달의 초기값은 매개효과가 있는 것으로 나타났다.

• 대한간호학회지
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• 제28권1호
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• pp.7-16
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• 1998

Various difficulties and inconveniences arise from having a mentally handicapped child in a family and these place many demands on mothers. There are few studies in Korea on these demands nor on what mothers go through with their mentally handicapped daughters' menarche and puberty. The purpose of the study was to examine the experiences of mothers of mentally handicapped daughters, as it relates to their daughters' menarche and the beginning of puberty. With indepth interviews, both in person and by telephone and participant observation the study used a qualitative research methodology to attempt to understand the experiences of these mothers. The data were gathered from October 1995 to April 1996. The subjects for the research included nine mothers of mentally handicapped daughters whose ages ranged from 12 to 18 and who attended one of three special schools located in either Inchon or Seoul. The data were recorded and analyzed : meaningful statements were grouped according to subjects raised by the mothers. Content Analysis was also applied to identify similar content and confirm common experiences. and to highlight concepts and categorized them. The results of this study are as follows. Five categories were identified : mothers' emotional responses to their mentally handicapped daughters' menarche and menstration were of severe despair accompanied by anxiety, guilt, fear, anguish, shame and pity because the mothers were afraid their daughters would not be able to use appropriate hygienic measures during menstration and the mothers felt heavily burdened in having to look them. The mothers also had negative feelings about their daughters' physical development. The experience of mothers related to their daughters' possibilities for marriage and pregnancy were of powerlessness, distress, withdrawal, fear. pity and desperation and they were afraid that their daughters might be violated sexually. The mothers rejected the possibility of marriage and pregnancy for their daughters and instead planned very restricting futures for them. The mothers used various coping methods to bring meaning to their lives. Because the negative emotional responses of the mothers. nurses need to work to empower mothers to overcome these negative responses. Sex education can also play an important role especially for the daughters especially through the use of visual aids. Further, nurses should understand the tearing difficulties of mentally handicapped daughters, what mothers need and also what they experience with their mentally handicapped daughters. In conclusion, nurses should understand the negative experiences of the mothers in relation to their mentally handicapped daughters' menarche, help the mothers cope with the negative. emotions through real life education and counselling. In addition, there is a need for nursing interventions and an administrative system which will minimize the prejudices of society towards handicapped people.

• 한국초등수학교육학회지
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• 제10권1호
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• pp.89-106
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• 2006

학생들이 수학학습을 하는데 있어서 경험하게 되는 여러 가지 부정적인 경험과 정서들은 학년이 올라감에 따라 학생들의 수학불안의 요인이 되며, 이러한 수학불안은 효과적인 수학성취도에 부정적인 영향을 미친다. 따라서 본 연구에서는 초등학교 학생들의 수학불안 요인을 수학교과 요인, 학습자 태도 요인, 교사 요인, 환경요인의 4개 영역으로 나누어 분석한 후, 수학불안 요인들이 학년 및 성별 간에 차이를 보이는지에 대해 살펴보고자 한다. 또한 수학불안 요인들은 수학성취도와 어떠한 관계가 있는지 알아보고자 한다. 그리하여 초등학생의 수학불안 요인 처치의 중요성을 인식하고 그 방안을 모색하는데 도움을 주고자 한다.

• Journal of Microbiology and Biotechnology
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• 제25권8호
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• pp.1339-1348
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• 2015

Until now, considerable effort has been made to engineer novel nitrogen-fixing organisms through the transfer of nif genes from various diazotrophs to non-nitrogen fixers; however, regulatory coupling of the heterologous nif genes with the regulatory system of the new host is still not well understood. In this work, a 49 kb nitrogen fixation island from P. stutzeri A1501 was transferred into E. coli using a novel and efficient transformation strategy, and a series of recombinant nitrogen-fixing E. coli strains were obtained. We found that the nitrogenase activity of the recombinant E. coli strain EN-01, similar to the parent strain P. stutzeri A1501, was dependent on external ammonia concentration, oxygen tension, and temperature. We further found that there existed a regulatory coupling between the E. coli general nitrogen regulatory system and the heterologous P. stutzeri nif island in the recombinant E. coli strain. We also provided evidence that the E. coli general nitrogen regulator GlnG protein was involved in the activation of the nif-specific regulator NifA via a direct interaction with the NifA promoter. To the best of our knowledge, this work plays a groundbreaking role in increasing understanding of the regulatory coupling of the heterologous nitrogen fixation system with the regulatory system of the recipient host. Furthermore, it will shed light on the structure and functional integrity of the nif island and will be useful for the construction of novel and more robust nitrogen-fixing organisms through biosynthetic engineering.

• 영재교육연구
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• 제14권3호
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• pp.41-52
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• 2004

No educational provision for the gifted and talented works in a cultural vacuum, and this is as true for out-of-school activities as for what happens in school itself. There is evidence that excellence in children's achievements can come from widely differing special provision or from no special provision at all. Cultural influences affect attitudes as to who might be gifted and talented and what might be done for them. Whatever the size and influence of special centres anywhere, there is always overlap between in-school and out-of-school activities. For all styles of provision, cooperation between the two is a vital aspect of success. The major cultural dichotomy in this field is between the perception, usually found in the Far East that 'most children have gifted potential' and the largely Western view that 'few children have gifted potential'. It is safe to say that children who are selected for aptitude and ability, and who are keen to learn, will get more from special enrichment than those who of equal potential who have not had that experience. But this does not necessarily show the provision as the best possible method for enhancing gifts and talents. In fact, I do not know of a single scientific investigation, either cross-culturally or within one country, which compares any aspect of an out-of-school programme with another. As a result it is hard to say what type of provision would be most appropriate and effective in any given situation. Outcomes are also dependent on the enthusiasm, organisation and money put into any scheme - as well as the way youngsters are chosen for it. Some of the largest and most influential out-of-school American institutions were founded on the psychological understanding of human abilities that was current in the 1920s. These early influences of seeking an IQ cut-off point (or equivalent) to identify the gifted still affect their practice. in addition, the big American Talent Searches so often select youngsters for summer-schools not only by their high-level achievements, but also by their parent's ability to pay the sometimes high fees. Opinions about the identification of the brightest children and consequential educational practice underlie all provision for their education, whether in or outside school hours. Because of cross-cultural differences, it would not seem wise to copy any action directly from one culture to another without recognising these influences and possibly modifying the model. The growing trend around the world is to offer high-level opportunities to as many youngsters as possible, so that no keen learner is turned away without even a change of sampling them.