• Korean Journal of Poultry Science
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• v.44 no.4
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• pp.275-282
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• 2017

This study was conducted to investigate the effect of dietary silicate based complex mineral (SCM) on the performance of broiler chicks. Four hundred fifty one day old Cobb ${\times}$ Cobb broiler chicks were fed with commercial diets at 0%, 0.05%, 0.10%, 0.15% and 0.20% SCM with five replicates for five weeks. Weight gain, feed intake and feed conversion were measured weekly, and blood composition, immunity and meat quality were evaluated at the end of experiment. During overall period weight gain in chicks fed diet containing 0.1% SCM was significantly increased as compared with that of control (p<0.05). Feed intake showed no consistency among the treatments. Feed conversion appeared to increase in the chickens fed with SCM addition diets during prestarter period. Albumin, glucose and other blood parameters related to chicken health tended to improve at the level of 0.05% SCM addition treatments. Drip loss in breast meat was significantly decreased in more than 0.05% SCM addition (p<0.05). The expression of IL-2 (Interleukin-2) in blood increased significantly in the chickens fed with SCM of 0.05% or 0.10% level than other treatments (p<0.05). The optimum SCM concentration for commercial dietary supplementation for improving broiler performance and other health-related parameters was 0.10%.

• Informatization Policy
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• v.21 no.2
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• pp.67-88
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• 2014

The research hypothesis of this paper is that education for smart device utilization has a positive effect on ability and utilization of smart devices for the disabled. The data for disabled of NIA's 2012 survey about digital divide is used, and the research method is "Heckman's 2-stage method" which considers the problem of selection bias. As a research result, this paper says that the disabled who had experience of education for smart device utilization have higher level of ability and utilization of smart devices. Also, a high level of education and family income, professional career and young generation have been very positive effect on the high level of ability and utilization of the disabled. The level of ability and utilization of the blind tend to be lower than those of the physically disabled. These results remind that the education for smart device utilization for the disabled is important and effective. And various contents and methods of education which are appropriate for the disability types should be developed.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.39 no.7
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• pp.12-21
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• 2002

In this paper, we propose a new hybrid ARQ scheme to consider real-time and non real-time services in a wireless ATM network. Real-time and non-real-time services require different error control schemes according to each service characteristics. Therefore, in the next generation mobile communication environments where these service scenarios should be deployed, hybrid ARQ scheme using RCPC code with variable coding rate becomes one of the most suitable solutions. Because the variable coding rate is applied according to traits of transmitted frame and channel status, hybrid ARQ scheme using RCPC code can expect UEP effect. The UEP scheme does not apply equal error protection level to all information, but does high error protection level to more important information. In Our scheme, UEP of high error protection level is applied to real-time service, and UEP of low error protection and retransmission techniques are applied to non real-time service. We show that the proposed hybrid ARQ scheme improves channel utilization efficiency and yields high error correction behaviors.

• Korean Journal of Social Welfare Studies
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• v.40 no.1
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• pp.115-138
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• 2009

The primary focus of this study is to examine the characteristics of the asset poor and to empirically investigate those factors affecting the likelihood of the asset poor's poverty exit and entry. The 2nd wave through 8th wave data from KLIPS were used for analysis. The asset poverty lined of 50% of the household net asset was set up so that households below 50% are classified as the asset poor. The characteristics of the asset poor were examined in a static manner by analyzing only the 8th wave KLIPS data. To investigate those factors affecting the likelihood of asset poor's poverty transferal with a dynamic perspective, the authors employed two survival analysis methods, the life table analysis and the Time-dependent Cox regression analysis. Based on the findings, some recommendations were made for future policy efforts to support the asset poor and for the current poverty policies as well. In specific, if the 'Individual Development Account' is to be initiated in the future, it would be essential to build a systematic model to utilize accumulated asset by enhancing job competencies and ability to gain a decent job.

• The Journal of the Korea Contents Association
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• v.9 no.11
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• pp.108-119
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• 2009

The purpose of this study is to verify differences between the college students communication pattern and problem-solving ability according to the degree of their internet game addiction. Data were obtained through 295 respondents from the college students in Seoul, Kyungsang and Junra Provinces and analyzed by one-way ANOVA. The findings are as follow: First, respondents has some significant differences in communication pattern according to the degrees of the internet game addiction. Second, the high level of addiction group shows the less functional communication pattern such as placating, blaming, irrelevant stance. Third, faced with the problem, the high level of addiction group has a tendency to use more negative problem-oriented, impulsive and careless-style, avoidance-style than rational problem solving style.

• Science of Emotion and Sensibility
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• v.14 no.2
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• pp.245-256
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• 2011

This study consists of two sections to figure out the relationship between autistic features and empathizing-systemizing traits. For the first section, the research involved 355 university students to measure their EQ, SQ-R and AQ. As a result, it is found that AQ was negatively correlated to EQ, and D score(relative difference between EQ and SQ-R of the individuals), but it was not significantly related to SQ-R. It means that the subject has high AQ if he has relatively lower EQ than SQ-R. For the second section, the subjects were divided into two groups based on their AQ score; the subjects who had a tendency of autism and the subjects who did not. The test measured how these two groups were different in terms of facial expressions' recognition according to the tendency of autism, facial expression presenting areas(whole face, eyes-alone, mouth-alone) and different types of emotions(basic and complex emotions). As a result, the subjects who had a tendency of autism were lower at judging facial expressions than the subjects who did not. Also, the results showed that the subjects judged better on the condition of basic emotions more than complex emotions, the whole face more than eyes-alone and mouth-alone. Especially, for the eyes-alone condition, the subjects who had a tendency of autism were lower at judging facial expressions than the subjects who did not. This study suggests that empathizing traits and facial expressions' recognition are related to the tendency of autism.

• Journal of vocational education research
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• v.37 no.4
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• pp.23-44
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• 2018

The purpose of the study was to examine the vocational competency of students enrolled in vocational high schools including specialized vocational high school and meister vocational high school, and vocation program of general high school. We analyzed their vocational competency, based upon the vocational competency data of KCCI (Korea Chamber of Commerce & Industry). The results were as follow. First, latent profiles of subjects were categorized into four folds: general cognition-low adaption, cognition adaption general, pursuit of job adaption, low cognition-job mal-adaption. Each percentage of four groups was 39%, 30%, 11%, and 20%. Second, mainly, specialized vocational high school pattern is matched with vocational high schools' pattern. However, the cognitive competency of students in meister vocational high school was higher than that of student in vocation program of general high school. Third, latent profile group was clarified in terms of non-cognition aspect. Fourth, The higher the job adaption is, the higher the career decision level. We suggested some policy implications for improve the vocational competency.

• Communications of Mathematical Education
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• v.15
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• pp.119-126
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• 2003

학교 현장에서 아이들을 지도하다 보면 문제해결력이 상당히 낮다는 것을 자주 경험하곤 한다. 따라서 그러한 문제점에 대하여 고민하고 다양한 방법을 생각해 보는데, 그 해결 방안으로 소집단 협력학습을 실시하여 아이들의 전반적인 문제해결능력을 높여 보고자 본 연구를 실시하게 되었다. 그러기 위하여 소집단의 구성을 수학 성적을 토대로 하여 5단계로 분류하여 실시하였다. 이에 따른 연구 문제로는 크게 3가지로 정하였는데 다음과 같다. 첫째, 소집단 협력학습이 일제 학습에 비하여 수학 문제해결 능력을 향상시켰는가? (실험반과 비교함) 둘째, 소집단 협력학습이 개인별 수학 문제해결능력을 향상시켰는가? (개인별 비교; 실험반에 국한됨) 셋째, 소집단 협력학습이 수학 교과에 대한 아동들의 수학적인 태도변화를 가져왔는가? 위에서 제시한 연구 문제들을 해결한 결과, 실험반이 비교반보다 문제해결력이 유의미한 수준으로 높게나왔고, 또한 5단계로 분류한 아동들 개개인의 문제해결력에서는 특히 중하위권에 있는 아동들이 실험 후에 문제해결력이 높게 나왔다. 끝으로, 아동들의 수학적인 태도 변화에 관한 설문에서는 소집단 협력학습으로 인하여 수학에 대한 흥미와 자신감이 많이 생긴 것으로 나왔다. 따라서 7차 교육과정에서 주장하는 단계형 수준별 교육과정을 실행하는데 있어서 소집단 협력학습이 하나의 대안이 될 수 있을거라 생각하고, 아동들의 문제해결력을 높이는 또 하나의 수업 형태로서도 시도해 볼만한 것이라 생각한다.

• Journal of Life Science
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• v.21 no.5
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• pp.684-692
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• 2011

The present study furthered this research by determining the optimal level of inuloprebiotics derived from Korean Jerusalem artichoke to promote growth in broiler chickens. On hatch day, 320 male Ross 308 broilers were randomly allotted to four groups for a 35-day feeding regimen. The groups were a control (no supplementation), diet supplementation with antibiotics (8 ppm avilamycin), supplementation with 200 ppm inuloprebiotics, and supplementation with 250 ppm inuloprebiotics. Body weight and feed intake were comparably high in the two inuloprebiotics groups, and exceeded the values for the control and antibiotics groups. Body weight and feed intake was higher in chickens fed the antibiotics supplemented diet, compared to controls. There were significant differences among treatment groups. Feed conversion ratio during total experimental periods was significantly high in the control group compared to the inuloprebiotics-fed groups, but no significant difference was evident using antibiotics or inuloprebiotics dietary supplementation. Carcass weight, dressing percentage, and weight of breast and thigh muscle were significantly higher for inuloprebiotics-fed chickens, compared with control and antibiotic-fed chickens. Inuloprebiotics concentration was not significant, while antibiotics-fed chickens displayed significantly higher values than control chickens. Abdominal fat was significantly reduced (19.08%-23.30%) and blood immunoglobulin and the weight of the thymus and Bursa of Fabricius were significantly increased in chickens receiving inuloprebiotics-supplemented feed, compared to control and antibiotics fed groups. In the lower intestine, the viable counts of beneficial bacteria (Bifidobacteria and Lactobacillus) were significantly increased and counts of harmful bacteria (Escherichia coli and Salmonella sp.) were significantly decreased in the presence of the inuloprebiotics, compared to control and antibiotic. The present results support 200 ppm as an optimal level of Korean Jerusalem artichoke-derived inuloprebiotics as a dietary supplement to improve growth in broiler chickens.

• 한국노년학
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• v.37 no.2
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• pp.445-459
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• 2017

The purpose of this study is to provide a systematic review of the nonpharmacological interventions of ADL improvement for dementia published in foreign journals for the past 10 years, and to provide general information on nonpharmacological interventions and effective intervention methods to dementia expert in clinical practice. We searched published studies in the Medline Complete, PubMed Central, and Scopus databases from January 2007 to November 2016. The main keywords used "Dementia AND (ADL OR Activities of daily living) AND Nonpharmacological interventions" and total of 9 studies were selected for analysis from 974 searched articles. The level of evidence were belonged to 3 each studies in I~III level. The mostly provided nonpharmacological interventions were exercise, the study field was variety of areas including rehabilitation(occupational therapy, physical therapy), nursing, and psychology. The Barthel Index(BI) was most frequently used assessment tools to evaluate basic activities of daily living, Cognition was most dependent variables measured with the ADL. Through this study, we provided evidence for the understanding of nonpharmacological interventions of ADL improvement for dementia. In the future, based on this study, helpful intervention needed for ADL training.