• Food Industry
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• s.4
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• pp.14-17
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• 1971

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.19-20
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• 2014

스마트폰의 확산과 그에 따른 모바일 앱 산업의 괄목할 성장과 발맞추어 대학생들의 스마트폰 어플리케이션 선택 이유에 대한 조사를 실시한다. 본 연구에서는 스마트폰 어플리케이션의 선택 이유에 대한 양적인 조사를 연구 범위로 하고 조사방법론으로는 대전의 한 대학교의 학생들에게 설문을 통하여 어플리케이션을 선택하는 이유를 파악하는 방법을 취한다. 또한 어플리케이션 선택 이유에 있어 성별에 따른 차이와 학년에 따른 차이를 SPSS 20 통계패키지를 이용하여 검증한다. 조사 결과는 어플리케이션 선택 이유로 "포털 등에서 정보를 취득하는 경우"와 "친구 등 타인의 권유"가 근소한 차이로 1, 2위로 꼽히고 "앱스토아의 추천"이 가장 낮은 비중을 나타난다. 성별 어플리케이션 선택 이유는 여자가 남자에 비해 친구 등 타인의 권유에 훨씬 크게 영향을 받는 등 통계적으로 유의한 차이를 보인다. 반면 학년별 선택 이유는 통계적으로 유의한 차이를 보이지 않는다.

• Proceedings of the Korea Contents Association Conference
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• 2017.05a
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• pp.129-130
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• 2017

학습동아리는 대학생들에게 학업보충 뿐 아니라 자격증취득, 취업준비 등 여러 목적으로 매우 유용한 도구가 될 수 있다. 본 연구에서는 학습동아리 참여 실태에 대한 조사를 연구 범위로 한다. 조사방법론으로는 대전의 한 대학교의 학생들에게 설문을 통하여 학습동아리 참여 여부와 미참여 시의 이유, 그리고 참여 시 참여 이유 등을 파악하는 설문방법을 취한다. 먼저 성별과 학년별 학습동아리 참여의 차이가 있는지를 분석하고, 미참여 이유와 참여 이유에 있어 성별에 따른 차이와 학년에 따른 차이를 SPSS 20 통계패키지를 이용하여 검증한다. 검증 결과는 남학생의 학습동아리 참여가 높고 학년별로는 신입생보다 재학생들이 당연히 참여 비율이 월등히 높아 통계적으로 유의한 차이가 있음이 나타났다. 참여 이유로는 자발적 필요성이 70%에 달해 월등히 높은 비율을 나타냈다. 한편 미참여 이유는 아르바이트 등으로 시간이 없다는 응답이 50%를 넘어 경제적 형편을 반영하고 있다. 성별, 학년별 참여, 미참여 이유는 통계적으로 유의한 차이가 없었다.

• Journal of Digital Convergence
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• v.14 no.9
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• pp.505-514
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• 2016

The purpose of this study was to examine whether Reasons for Living play mediating roles in the links between stress and suicidal ideation, and Social Support moderate the effect of stress on Reasons for Living. In addition, the mediated moderation effect on the relationship between stress and suicidal ideation was examined. A total of 608 university students completed self-reporting questionnaire on stress, suicidal ideation, Reasons for Living and social support. The results indicated that Living on Suicidal mediated the relationship between stress and suicidal ideation, and social support moderated the links between stress and Living on Suicidal. Finally, the mediated moderation effect of social support the association between stress, Living on Suicidal, and suicidal ideation was found. These findings suggest that social support may function as a protective factor for university students' suicidal ideation.

• Journal of Animal Science and Technology
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• v.53 no.5
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• pp.497-502
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• 2011

The present survey was conducted to provide basic information on Hanwoo calf weaning age and farmer's understanding of early weaning. Eight hundred and sixty-two Hanwoo breeding farms from all nine provinces were surveyed via personal interviews. The percentages of farms categorized by herd size were 30.5%, 32.8%, 26.0% and 10.7% for <50 heads, 51~100 heads, 101~200 heads and >200 heads, respectively. The percentage of farms weaning calves at three months of age were 39.2% and 12% of farms weaned calves less than two months of age. But the percentage of farms weaning at or over four months of age were still high, being 16.1% at four months of age and 16.6% over five months of age, respectively. The result of the present study showed that calf weaning age in Hanwoo was inconsistent and higher percentage of farms wean calves at three months of age among the surveyed farms. The improvement of cow reproductive performance was answered as the biggest merit of early weaning.

• Journal of Korean Philosophical Society
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• v.117
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• pp.113-136
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• 2011

According to the thesis of the publicity of reasons, practical reasons are public in their nature: the normative force of reasons may extend across different agents. Wallace argues that the normative mode of public reasons can be exhausted by what he calls the requirement of non-interference. I argue that the publicity thesis as he presents it equally applies to both (non-special) interpersonal relations and special relationships. At first, Wallace's version of the publicity thesis may seem incompatible with the fact that there exists reasons of positive aid. He says that when these reasons obtain in the case of interpersonal relations, they are accommodated by relevant specific moral principles. I defend this claim by showing that there is a kind of internal relation between the publicity thesis and moral principles in question. It is true that the reasons of positive aid obtain in the case of special relationships as well. I show that in this case such reasons are grounded by the requirements of the given special relationships themselves. I argue that the logical consequence of these claims is what I call the dualistic conception of our practical reasoning about what to do and that this dualism does not raise a serious challenge to the publicity thesis. The overall arguments of this paper, I believe, make us to be "realistic" about the philosophical significance of the thesis in question in moral discourses.

• Journal of Animal Science and Technology
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• v.49 no.2
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• pp.239-244
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• 2007

This study was conducted to investigate effects of weaning age on growth perforance, feed intake, disease occurrence and maternal reproductive efficiency in Hanwoo. Sixty experimental calves were allocated into two groups, early weaned (n=29, calf age 90 d, EW) and normally weaned (n=31, calf age 120 d, NW). Body weights and average daily gains during nursing and post-weaning periods were similar between two groups (p>0.05). Weaning age had no effect on calf starter, grass hay, dry matter, crude protein and TDN intakes of calves (p>0.05). Maternal calving interval in EW was shortened by 23 days compared to NW (p>0.05). Any difference in occurrence of disease was not observed between groups. Present results indicate that early weaning age has no negative effects on growth performance, feed intake or on disease occurrence in Hanwoo calves. And it has positive influence on maternal calving interval.

• Journal of Animal Science and Technology
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• v.49 no.4
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• pp.451-458
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• 2007

This study was to investigate the effectiveness of pre-weaning injection of gonadotropin and scheduled fixed-time insemination on sow fertility. Sows were randomly assigned to receive gonadotropin 2 days before weaning, 1 day after weaning or none as control. In gonadotropin treated groups, half of sows were inseminated twice at 24 and 36 hours after onset estrus and half of sows were inseminated twice at scheduled fixed-time. Weaning to onset of estrus was the shortest in lactating sows injected with gonadotropin prior to weaning. Liter size was significantly higher in AI groups after detection of estrus, compared to fixed-time AI group. Results of these experiments indicated that injection of gonadotropin in lactating sows could initiate the final follicular development, and has potential to enhance the reintegration of estrus. Further researches are needed to define the relationship between reduced interval of wean to onset estrus and enhanced fertility in lactating sows.

• KOREAN POULTRY JOURNAL
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• v.6 no.6 s.56
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• pp.90-92
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• 1974

다음은 중앙일보 양돈장번식주임으로 이쓴 윤덕영씨가 본인자신이 농장에 근무하면서 실제 체험한 바를 조기 이유의 실제와 이론이란 제목으로 일반 양축가에 소개하고 있다. 윤덕영씨는 우리나라에서 일반적으로 50$\~$60일 사이에 이유를 실시하여 모돈에게 너무 체력적으로 손실을 가져와 생산성을 떨어뜨려 수익면에서 많은 손해를 보고 있어 선진국에 비해 많은 손실을 입고 있다고 자신이 체험을 통해 조기이유 가능성을 소개하면서 우리나라에서도 최소한 20일까지 가능할 수 있다고 시사하여 매우 고무적인 조언을 주고 있어 본지를 통해 소개한다.

• The Korea Swine Journal
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• v.24 no.11 s.279
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• pp.159-161
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• 2002