• Animal Bioscience
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• v.34 no.4
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• pp.567-574
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• 2021

Objective: In this study we investigated the effect of seasonal thermal stress on milk production and milk compositions between Holstein and Jersey dairy cows under the temperate-climate in Korea. Methods: A total of 9 Holstein lactating dairy cows (2.0±0.11 parity) which had a daily milk yield of 29.77±0.45 kg, and days in milk of 111.2±10.29 were selected similarly at the beginning of the experiments in each season. Also, a total of 9 Jersey lactating dairy cows (1.7±0.12 parity) which had a daily milk yield of 20.01±0.43 kg, and days in milk of 114.0±9.74 were selected similarly at the beginning of the experiments. Results: Results showed that the average ambient temperature (℃) and temperature-humidity index (THI) were higher in summer, and were lower in winter (p<0.05). The average relative humidity (RH, %) was higher in autumn than that of other seasons (p<0.05). Milk production was significantly decreased (Holstein 29.02 kg/d and Jersey 19.75 kg/d) in autumn than in other seasons (Holstein 30.14 kg/d and Jersey 20.96 kg/d). However, the milk production was negatively correlated in Holstein cows, and positively correlated in Jersey cows with THI values increased from 16 to 80. In addition, milk yield was increased by 15% in Holstein cows and decreased by 11% in Jersey cows with the THI values increased from 16 to 20. The fat and protein content percentage was significantly higher in Jersey milk than in Holstein milk, furthermore the fat and protein content yield was higher in Jersey cow milk than that of Holstein cow's milk with all THIs. Conclusion: From the study results, we concluded that Jersey cows might be less adaptable to low temperature of the winter, and this would have a negative impact on dairy farmer income since Korea's milk price estimation system places a higher value on milk yield than on milk compositions or sanitary grades.

• Informatization Policy
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• v.23 no.4
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• pp.3-23
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• 2016

Since Turing (1950) proposed the development of a machine or system that could think and communicate with humans, many engineers and scientists have made endless efforts to create machines and systems that can replace humans. This effort made the field of artificial intelligence. Recently, as many people have been interested in the 4th Industrial Revolution, research on artificial intelligence technology has been actively carried out not only in the university laboratories but also in the companies as the core technology for realizing the 4th Industrial Revolution. As the artificial intelligence technology has been penetrated deeply into our lives, it is true that our lives have become much easier and more comfortable than in the past, but on the other hand, we have begun to have various negative effects. In this study, we review the social changes caused by artificial intelligence in terms of intelligent products and services. By analyzing positive effects and dysfunctions in various cases of daily life and work environment, we try to identify main policy issues.

• Journal of Korean society of Dental Hygiene
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• v.10 no.6
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• pp.983-990
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• 2010

Objectives : This study was to investigate the level of oral health, xerostomia, and oral health related activities of daily living(ADL) and the clinical factors influencing oral health related quality of life(OHIP-14) in elderly for visiting healthcare. Methods : Data were obtained from a cross-sectional survey of 106 elderly people(mean age=$77.5{\pm}4.98$). Participants in the study were recruited when they attended the public health center in Cheonan-si. Data were collected by means of a personal interview from July 19 through to August 20, 2010. Oral health related ADL, OHIP-14 and dry mouth was measured by the total 24-items. The data was analysed with t-test, one-way ANOVA, and multiple regression using the SPSS program. Results : Participants had a mean of 13.6 remaining natural teeth, which was significantly with age and perceived oral health. Xerostomia score achieved a mean of 6.39 out of a maximum 12 points. Powerful predictors of OHIP-14 were natural teeth, masticatory difficulty, oral pain, PHP index, perceived oral health, age and living together for the elderly Conclusions : Based on the findings, OHIP-14 has a significantly impact on oral health related ADL. These results suggest that elder people oral health promotion should be developed assessment index which was measured predictors related oral health in the elderly for visiting healthcare.

• Journal of Digital Convergence
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• v.16 no.1
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• pp.311-316
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• 2018

Projection mapping is one of the convergence contents combined with digital technology. After entering the Chinese market, with its fantastic shock of visual impact, it becomes China's most shocking, most popular, and most commercial value of marketing means, to be widely used in advertising, construction, tourism and other fields. But in China, the lack of projection mapping professionals and professional will affect the development of the entire industry. The study analysed the case of projection mapping in China, and discovered the future direction development of projection mapping. Projection mapping will keep going based on local cultural environment, and combined with other intelligent technologies, and spreading to daily life, also expanding the using area, creating the manifestation pattern then contributing greatly to the entertainment content industry.

• Journal of Korea Technology Innovation Society
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• v.13 no.4
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• pp.617-637
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• 2010

As the impact of S&T on daily life increases, efforts to predict and anticipate the adverse effects of S&T development on human society and the natural environments are reinforced. In addition, public character of S&T demands wider participation of various stakeholders in R&D process. In response to these demands, Technology Assessment (TA) was introduced in the process of S&T policy formation. The Korean TA exercises were carried out 5 times since 2003 through 2008 by Korea Institute of S&T Evaluation and Planning (KISTEP), the necessity of which was incorporated in the S&T basic law. TA in Korea has been continuously upgraded in terms of organizational structure and procedure, but still in progress to take into account of problems exposed so far. In this paper, problems of TA in Korea are examined in terms of law, sponsor, management, and utilization. Suggestions for its improvement such as sophistication of methods and linking to national S&T planning are proposed.

• Journal of The Korean Society of Agricultural Engineers
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• v.59 no.6
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• pp.9-18
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• 2017

The objective of this study was to estimate the climate change impact on inflow to Namgang Dam using SWAT (Soil and Water Assessment Tool) model. The SWAT model was calibrated and validated using observed flow data from 2003 to 2014 for the study watershed. The $R^2$ (Determination Coefficient), RMSE (Root Mean Square Error), NSE (Nash-Sutcliffe efficiency coefficient), and RMAE (Relative Mean Absolute Error) were used to evaluate the model performance. Calibration results showed that the annual mean inflow were within ${\pm}5%$ error compared to the observed. $R^2$ were ranged 0.61~0.87, RMSE were 1.37~7.00 mm/day, NSE were 0.47~0.83, and RMAE were 0.25~0.73 mm/day for daily runoff, respectively. Climate change scenarios were obtained from the HadGEM3-RA. The quantile mapping method was adopted to correct bias that is inherent in the climate change scenarios. Based on the climate change scenarios, calibrated SWAT model simulates the future inflow and evapotranspiration for the study watershed. The expected future inflow to Namgang dam using RCP 4.5 is increasing by 4.8 % and RCP 8.5 is increasing by 19.0 %, respectively. The expected future evapotranspiration for Namgang dam watershed using RCP 4.5 is decreasing by 6.7 % and RCP 8.5 is decreasing by 0.7 %, respectively.

• The Journal of Internal Korean Medicine
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• v.41 no.3
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• pp.494-501
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• 2020

Objectives: Insomnia is a common condition that causes deterioration of cognitive function and physical function and has a negative impact on quality of life. Insomnia is experienced by more than one-third of the population of the world. Although sleeping pills are currently used as therapeutic agents, they have side effects, so safer treatment methods are needed. Therefore, we report a case of an outpatient who sleeps only one hour a day due to insomnia. Methods: The patient visited Korean Medicine Hospital 10 times for four weeks and was treated with Korean medicine therapies, including electroacupuncture on the back-Shu points and herbal medicine (Yukmijihwang-tang and Hwangnyeonhaedok-tang). Treatment progress was assessed using the Pittsburgh Sleep Quality Index (PSQI) and the Insomnia Severity Index (ISI). Results: After 29 days of treatment, the PSQI score decreased from 20 points and 14 points. The ISI score also decreased to decreased to 22 points from 26 points. The average daily sleeping time increased from 60 minutes to 197.1 minutes after treatment. No significant side effects were observed. Conclusions: Yukmijihwang-tang and Hwangnyeonhaedok-tang with electroacupuncture might be a recommended therapeutic option for insomnia patients.

• 재활복지
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• v.17 no.4
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• pp.151-176
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• 2013

The objective of this study is to find out what factors affect the persons with disabilities who want to seek jobs again and to propose the policy for the re-employment support for the persons with disabilities based on the results of analysis. The disabled employment panel data were analyzed for this study. This study used a logistic regression analysis. This study tells that factors which affects the re-employment of the persons with disabilities are gender, education, chronic disease status, and the help of others in daily life status, employment discrimination experience, and the type of employment. From the gender perspective, whereas men are in favor of re-employment in the clerical work, women are in favor of re-employment if they don't have a spouse or receive employment services. Through these analysis, it is proposed that policies for the specific female employment support and for the promotion of the entry into decent jobs, measures for the elimination of job discrimination and linkages with the employment of the persons with disabilities and medical/health sector.

• Women's Health Nursing
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• v.29 no.1
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• pp.44-54
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• 2023

Purpose: Uncertainty and restrictions on daily life have increased fear, stress, and depression during the coronavirus disease 2019 (COVID-19) pandemic. Depression is the most common mental health problem in pregnant women. The purpose of this study was to evaluate the levels of fear and stress related to COVID-19 experienced by pregnant women, as well as their levels of depression, and to examine the factors associated with depression during pregnancy. Methods: This was a cross-sectional, correlational study conducted among 153 pregnant women who visited a maternity hospital in Busan, South Korea. A self-reported questionnaire was used for data collection from December 18, 2021 to March 8, 2022. Data were analyzed using descriptive statistics, the independent t-test, one-way analysis of variance, Pearson correlation coefficients, and multiple regression. Results: Pregnant women experienced a moderate level of fear related to COVID-19, with an average score of 21.55±4.90. The average score for depression during pregnancy was 14.86±11.10, with 50.3% of the participants experiencing depression (≥13). The factors associated with depression during pregnancy were fear of COVID-19, contact with a confirmed case of COVID-19, being in the third trimester of pregnancy, high stress levels due to difficulties experienced from social distancing measures, and unintended pregnancy. These five statistically significant factors explained 35.0% of variance in depression during pregnancy. Conclusion: Considering the prevalence of depression in pregnant women during the COVID-19 pandemic, it is necessary to develop interventions to reduce anxiety by providing correct information and alleviating the stress of social distancing.

• Journal of the Korean Society of Physical Medicine
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• v.18 no.4
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• pp.109-119
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• 2023

PURPOSE: The definition and scope of biofeedback are broad and lack a clear framework. Therefore, efforts are needed to clearly understand the exact range and definition of biofeedback based on the research and development conducted to date. Thus, the purpose of this study was to arrive at the definition and scope of biofeedback through a literature review and analysis of its application methods. METHODS: This study is a systematic literature review conducted to understand the various types and effects of biofeedback. International databases such as Google Scholar and PubMed were used. Domestic databases utilized for keyword searches included the Research Information Sharing Service (RISS) and the National Digital Science Library (NDSL). Quality assessment of the selected studies in the selection process was done using the Cochrane risk of bias, and the research was analyzed according to the population, intervention, control, and outcomes (PICO) format. RESULTS: Studies conducted between 2019 and 2021 were selected, with 4 papers falling under physiological classifications and 7 under biomechanical classifications. The quality assessment results showed that random sequence generation, allocation concealment, performance bias, and reporting bias were unclear. Detection bias was moderate, and attrition bias and other biases were low. Out of the 11 papers, 9 dealt with physical function outcomes, 5 with daily life activities, and 3 with mental functions. CONCLUSION: Physiological biofeedback tended to influence psychological factors more than physical functions, while biomechanical biofeedback tended to have a positive impact on physical functions.