• 대한간호학회지
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• 제52권1호
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• pp.80-91
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• 2022

Purpose: This study aimed to identify relationships among knowledge and skills about suicide prevention, attitudes toward suicide, and burnout of suicide prevention work of nurses at mental health welfare centers. Methods: An explanatory sequential mixed-method research was conducted. For the quantitative study, the subjects (nurses) were 133 nurses executing suicide prevention work. The data were analyzed using the SPSS 25.0 program. For the qualitative research, 13 nurses with high burnout scores were interviewed. The data were analyzed using theme analysis method. Results: Quantitative results showed the average burnout of suicide prevention work was 54.62 ± 12.51. The burnout of suicide prevention work had significant correlations with attitudes toward suicide (r = .30, p < .001) and suicide prevention skills (r = - .18, p = .037). Qualitative results showed six themes related to burnout of suicide prevention work. They were 'feeling a lack of confidence in one's suicide counselling skills', 'feeling of the limits of one's ability to cope with a suicide crisis', 'feeling regret for not being able to help the clients', 'being over-empathetic to the clients', 'Not being able to understand the clients because the subjects (nurses) opposes committing suicide', and 'thinking that the suicidal thoughts of suicide attempters do not improve'. Conclusion: To reduce burnout of nurses' suicide prevention work at mental health welfare centers, there is a need to develop an educational program considering nurses' attitudes toward suicide and one to enhance their confidence in suicide prevention skills.

• 현장농수산연구지
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• 제25권4호
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• pp.111-117
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• 2024

Reproductive research such as artificial insemination and embryo transfer is necessary to produce high-quality riding horses. In this study, we investigated the effects of estrus synchronization and ovulation induction methods, which can be considered the basis of artificial insemination in horses, on the hormone concentration and artificial insemination pregnancy rate of mares. For the purpose of synchronization of estrus in horses, Cidr-plus insertion method, Regumate feeding method, and 150mg progesterone + 10mg estradiol mixed administration method were used. In the Cidr-plus insertion method and the Regumate feeding method, the progesterone concentration reached the appropriate level for ovulation induction on the 8th day of administration. The mixed administration method of 150mg progesterone + 10mg estradiol maintained the progesterone concentration at an appropriate level immediately after administration. With the administration of PGF2a and hCG, progesterone concentration decreased rapidly, making ovulation induction possible. As a result of comparing the pregnancy rate between natural estrus and estrus synchronization, the pregnancy rate was found to be higher in estrus synchronization and ovulation induction. From the results of this study, it is insufficient to judge the effect of the pregnancy rate due to the small number of tests, but in terms of usability, estrus synchronization and ovulation induction were useful. Therefore, it is expected to contribute to improving the efficiency of future roadster production.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 D
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• pp.2880-2882
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• 2000

In the case of designing autonomous robot architecture using deliberative and reactive control methods, we can use mixed hybrid form as well as purely reactive scheme or purely deliberative scheme respectively according to its own goal and environment within the robot operates, It needs time and endeavors to design robot control architecture in either case above. In our research, we implemented a 3-dimensional robot simulator in order to help designing reactive/deliberative autonomous robot control architecture by offering methods which is capable of selecting design parameters and confirming its performances. It can be used, of course, to design purely reactive or purely deliberative architecture. The architecture and performance of simulator is shown and a sample hybrid robot architecture designed with the simulator is introduced in this article.

• 산경연구논집
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• 제13권9호
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• pp.1-9
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• 2022

Purpose: This study evaluates the ability to improve the economic welfare of rural communities in Indonesia by using the inequality measures of the distribution of information between leaders and their people as a variable that weakens the capacity of increasing the welfare. Research Design, Data, and Methodology: The research designed by developing an instrument using data validity and reliability testing. Before, primary data collected through interviews, questionnaires, observation, and documentation on the selected respondents. Then, the research method used is mixed methods research, in which quantitative and qualitative methods combined. Result: The finding from this study is that there is an inequality measure in the form of a high gap between the score of information distribution obtained by the village government compared to the score of the community, which has led to the welfare of the village which is still at a moderate level and not ready to become a prosperous society. Conclusion: The weakness of the village community is related to two things, namely the behavior and knowledge of the community about the issues, so the implication is that there must be a strong effort from the central government to ensure that technology is more evenly distributed to all villagers.

• Animal Bioscience
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• 제34권4호
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• pp.482-488
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• 2021

Objective: This study was conducted to estimate effect of single nucleotide polymorphisms (SNP) on the estimated breeding value of Hungarian Grey (HG) bulls and to find markers associated with horn colour. Methods: Genotypes 136 HG animals were determined on Geneseek high-density Bovine SNP 150K BeadChip. A multi-locus mixed-model was applied for statistical analyses. Results: Six SNPs were identified to be associated (-log10P>10) with green and white horn. These loci are located on chromosome 1, 3, 9, 18, and 25. Seven loci (on chromosome 1, 3, 6, 9, 10, 28) showed considerable association (-log10P>10) with the estimated breeding value. Conclusion: Analysis provides markers for further research of horn colour and supplies markers to achieve more effective selection work regarding estimated breeding value of HG.

• 노인정신의학
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• 제16권1호
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• pp.24-30
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• 2012

Objectives : The purpose of this study was to compare the efficacy of galantamine treatment, especially attention ability between patients with pure Alzheimer's disease (AD) and Mixed dementia (MD) during a 24-week trial. Methods : A total of 40 patients were recruited for this 24-week study. The effect of galantamine on attention was measured using Seoul Computerized NeuroCognitive Function Test (SCNT) and frontal functions test of Seoul Neuropsychological Screening Battery (SNSB). Patients'activities of daily living using the Seoul-Activities of Daily Living (S-ADL) and the Seoul-Instrumental Activities of Daily Living (S-IADL) ; behavioral symptoms using the Korean version Neuropsychiatric Inventory (K-NPI) were measured at baseline and 24-week. Results : 17 pure AD patients and 23 MD patients were analyzed in this study. Attention as measured by SCNT was not significantly different from baseline after 24 weeks of treatment in both groups. There was no significant difference between two groups in mean change from baseline in the SCNT, S-ADL, S-IADL and K-NPI scores at 24-week. Conclusion : Galantamine showed a therapeutic effect on cognition, activities of daily living, neuropsychiatric symptoms in pure AD and MD. Furthermore, Galantamine may specifically help to maintain attention and it may have positive effects on other cognitive and functional abilities.

• 한국재료학회지
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• 제21권2호
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• pp.100-105
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• 2011

The relative viscosity was measured at different filler loadings for a cycloaliphatic epoxy resin and hexahydro-4-methylphthalic anhydride hardener system filled with micro/nano hybrid silica. Various empirical models were fitted to the experimental data and a fitting parameter such as critical filler fractions (${\phi}_{max}$) was estimated. Among the models, the Zhang-Evans model gave the best fit to the viscosity data. For all the silica loadings used, ln (relative viscosity) varied linearly with filler loadings. Using the Zhang-Evans model and the linearity characteristics of the viscosity change, simple methods to predict the relative viscosity below ${\phi}_{max}$ are presented in this work. The predicted viscosity values from the two methods at hybrid silica fractions of $\phi$ = 0.086 and 0.1506 were confirmed for a micro:nano = 1:1 hybrid filler. As a result, the difference between measured and predicted values was less than 11%, indicating that the proposed predicting methods are in good agreement with the experiment.

• 한국실내디자인학회논문집
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• 제39호
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• pp.62-71
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• 2003

This research alms to understand the residents' actual conditions and reasons for remodeling in order to search for the desirable participation design methods, under the assumption that the remodeling of apartments by their current residents is a problem. The subjects of this research are residents of mixed-used apartments supplied via the fitting form housing supply methods recently. The results are shown below. First, the reasons for remodeling by the current residents we expansion of Interior space and change in interior atmosphere. Positive participation of the residents in the design decision is high and this remodeling problem is easily solved. Second, based on the Habraken's SAR theory, supports units and variable units were separated and in each process rational and systematic design methodologies according to the role and responsibility of the residents were observed. Third, considering the great level of remodeling right before moving in, there is a need for the variable housing supply methods of residents to easily participate in the design, construction, and supply of the apartments. Through the participation of the residents In the apartment design process will not only solve the problem of repeated apartment remodeling, but also accommodate the various needs of the residents.

• 한국동물생명공학회지
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• 제36권4호
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• pp.253-260
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• 2021

Organ transplantation is currently the most fundamental treatment for organ failure, but there is a shortage of organ supply compared to those in need. Regenerative medicine has recently developed a decellularization technique that overcomes the limitations of conventional organ transplantation and attempts to reconstruct damaged tissues or organs to their normal state. Several decellularization methods have been suggested. In this experiment, the decellularization methods were used to find effective decellularization methods for humanlike porcine placenta. The optimal conditions for decellular support are low DNA content and high glycos amino glycans (GAGs) and collagen content. In order to satisfy this condition, SDS and Triton X-100 and SDS + Triton X-100 were used as the detergent used for decellularization in this experiment. The contents were compared according to the decellularization time (0, 12, 24, 48 and 72 hours), and the concentrations of SDS (0.2, 0.5, 0.7 and 1.0%) were mixed in 1.0% Triton X-100 to analyze the contents. When decellularized using SDS and Triton X-100, respectively, it was confirmed that the contents of DNA and GAGs were opposite to each other. And decellularization treatment for 24 hours at 0.5% SDS was able to obtain an effective decellular support. If decellularization studies of various detergents can be obtained an effective decellular support, and furthermore, cell culture experiments can confirm the effect on the cells.

• 한국초지조사료학회지
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• 제29권3호
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• pp.197-210
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• 2009

친환경적인 조사료 생산과 사료가치 향상을 위해 콩과 작물과 청보리 혼파에 관한 시험을 수행하였다. 최근 보리 재배시 심하게 발생하여 감수를 초래하는 토양 전염성 병인 호위축 바이러스(BaYMV) 발생은 간작에서 3정도 발생하였으나, 혼파했을때는 발생이 1 정도로 경감되었다. 청보리와 헤어리베치 또는 자운영을 혼파했을 때, 혼파에서 출수 및 성숙기가 간작보다 다소 빨랐으며, 질소 시비량이 늘어날수록 생육이 지연되었다. 청보리의 단위면적당 수수는 간작에서 혼파보다 많았으며, 질소 시비량이 많을 수록 증가하였고 간장도 비슷한 경향이었다. 예취시기별 청예수량은 혼파에서 다소 많았는데, 헤어리베치와 혼파하였을 때가 자운영과 혼파하였을 경우보다 많아 혼파시 유리할 것으로 생각되었다. 또한, 질소 시용량이 많아질수록 청예 및 건물수량이 증가했으나 경제성 및 친환경 농업을 위한 견지에서 질소를 표준시비량의 1/2 정도로 줄여도 가능할 것으로 보였다. 청보리와 콩과 목초를 혼파 또는 간작했을 때, 토양 EC가 수확 후 다소 낮아졌으며, 유기물 함량은 증가하는 결과를 나타내었다. ADF(acid detergent fiber)와 NDF(neutral detergent fiber) 함량은 파종방법 및 작부조합 간에는 뚜렷한 경향을 볼 수 없었으나, TDN(total digestible nutrients) 함량은 질소 시비량이 증가할수록 높아지는 경향을 보였다. 또한, 청보리 단작에 비해서는 청보리와 콩과작물과의 혼파 및 간작이 대체적으로 사료가치가 높은 경향을 볼 수 있었다. 청보리와 두과 작물과의 혼파는 사료가치의 향상효과 및 지력유지, 화학비료 절감 등 친환경 지속적농업을 위한 유망한 재배기술이라고 판단되었다.