• The Bulletin of The Korean Astronomical Society
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• v.43 no.1
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• pp.48.2-48.2
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• 2018

SPHEREx is expected to provide us with the opportunity of unbiased sampling of small Solar System objects along with near-infrared ($0.75-5.0{\mu}m$) spectroscopic (R ~ 41) information. The estimated numbers of detections are tens of thousands for asteroids, thousands for Trojans, hundreds for comets, and several for Kuiper Belt Objects, Centaurs and Scattered Disk Objects. Wide spectral range covering many bands from carbon-bearing molecules and ices will enable us to systematically survey the volatile materials throughout the Solar System. SPHEREx will, for the first time, produce the near-infrared spectral map of the zodiacal light to pin-down the relative contributions of various populations of Solar System objects and interstellar dust to the dust grains in the interplanetary space. The study of the zodiacal light is also important to remove the foreground for the EBL (extragalactic background light) study, one of the main topics of the mission.

• Journal of Environmental Health Sciences
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• v.8 no.2
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• pp.1-11
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• 1982

A study on the water pollution of Gumho river by the relationship between physio-chemical conditions and water quality level by phytoplankton was examined at 6 sampling positions during the period from April 21 to August 11, 1982. Examination of physio-chemical water analysis such as temperature, pH, DO, BOD and biological analysis has shown 1. The average for Gumho river was 6.2 - 7.2 of pH, 2.6 - 9.4 mg/l of DO, 28.8 - 122.4 mg/l of BOD. 2. The phytoplankton identification in this survey period showed, Cyanophyceae is 7 genera 13 species, Bacillariophyceae 11 genera 32 species and Chlorophyceae 17 genera 27 species. 3. The results of biological water analysis were as follows: Banyawol was from oligosaprobic to $\beta$-mesosaprobic. Dongchon and Gumdan was from $\alpha$-mesosaprobic to $\beta$-mesosaprobic, 3rd gongdan was from oemesosaprobic to $\beta$-polysaprobic, Paldal was $\beta$-polysaprobic and Gangchang was repolysaprobic. 4. To appear dominant algae there were Microcycstis, Oscillatoria, Anabaena, Melosira, Nitzschia and Synedra.

• Journal of Environmental Health Sciences
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• v.32 no.6
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• pp.556-559
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• 2006

This study was performed to investigate the levels of cadmium (Cd), copper (Cu), lead (Pb), and zinc (Zn) in water and rice samples taken from five sites on a stream used for agricultural water in the Jeon-buk area, Korea. The water samples were randomly collected by the recommendations of the World Health Organization, and rice samples were randomly collected from rice paddy. The water and rice samples were analyzed by the recommendations of Food Code of Korea and using inductively coupled plasma spectrometer. Although there was variation between sampling sites, the levels of the metals in rice were on average much higher than those in water. The ratios of metal levels of rice to water were: $8.0{\sim}35.4\;for\;Cd;\;2.2{\sim}7.2\;for\;Cu;\;5.9{\sim}18.3\;for\;Pb;\;and\;10.6{\sim}75.7$ for Zn. These results suggest that there were transfer and bioaccumulation of the metals from the water to the rice taken place.

• Journal of Home Health Care Nursing
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• v.19 no.2
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• pp.105-111
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• 2012

Purpose: The purpose of study is to examine the relationships among job-seeking anxiety, depression and suicidal ideation of university students. The research design was a descriptive survey study, and 317 university students were selected through convenience sampling at two. Results: The higher criteria of job-seeking anxiety of arousing job-seeking anxiety and the average score of depression was 10.2. average of suicidal ideation was 22.4. Result from correlational analysis indicated that suicidal ideation was significantly with job-seeking anxiety and depression. Conclusion: The results of this study were useful to develop reducing job-seeking anxiety and depression programs for university students. We suggest more various to job-seeking anxiety, depression and suicidal ideation of university students in various. Implications of the findings, as well as directions for future research are discussed.

• Korean Journal of Health Education and Promotion
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• v.30 no.2
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• pp.11-21
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• 2013

Objectives: The objective of this paper is to study influence of self esteem, family support and adaptation to school life on adolscents' suicidal ideation adjsuted for general characteristics effect. Methods: Using cluster sampling, 318 high school freshmen from T city were extracted as survey subjects. Independent t-test, ANOVA, Duncan test, Pearson's correlation coefficients and multiple regression analysis were applied for statistical analysis. Results: Among general characteristics, religion, family income, single-parentedness, health status and school grades were statistically significant with suicidal ideation. Controlling the above variables, increase in self-esteem (${\beta}$=-.300) and family support (${\beta}$=-.267) showed statistically significant decrease in suicidal ideation but adaptation to school life did not. Conclusions: Therefore, it is proposed that measures for enhancement of self esteem and family support to be included in development of suicide prevention programs.

• Journal of The Korean Association For Science Education
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• v.13 no.3
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• pp.334-340
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• 1993

A survey on the attitudes toward science and science courses was conducted with three hundred students of primary and secondary schools. The instrument used for measuring attitudes was TOSRA(Fraser, 1981). The subjects was sampled by stratified cluster sampling method. The major findings of this study are as follows. 1. The attitude scores has no significant differences among the students of large city, mid-sized city and rural areas. 2. The attitude scores of male and female students has ststistically significant difference. 3. Primary students has significantly higher attitude scores than secondary students. 4. In case of senior high schools, science-major students has significantly higher attitude scores than humanity-major students.

• Journal of Distribution Science
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• v.12 no.5
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• pp.5-13
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• 2014

Purpose - We seek feasible strategies to draw customers into a state of attitudinal/behavioral loyalty through perceived quality and perceived risk in the experienced food industry. Research design, data, and methodology - We utilize the LISREL model to examine the cause and effect relationships between customer loyalty, perceived quality, perceived risk, and three marketing proposals (brand image, store image, and promotion). We employed the quota sampling method to conduct the survey questionnaires, collecting365 effective customer samples in coffee shops/stores in Taipei City. Results - We find that store image substantially benefits consumer loyalty through perceived quality. Marketing managers can enhance store environment and atmosphere to elicit both attitudinal and behavioral aspects of customer-perceived quality and loyalty. Conclusions - This is the first paper to investigate simultaneously customer loyalty across brand image, store image, and promotion/marketing proposals in the food industry. Managers can promote brand image and store image at the same time to enhance customer-perceived quality.

• Journal of Nutrition and Health
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• v.12 no.3
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• pp.47-54
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• 1979

미국 미쉬간주 앤 ·아버시에 거주하고 있는 한국 이주민 중 성인 50인을 대상으로 실시된 본 조사의 목포는 (1) 그들의 영양 섭취상태파악과 (2) 외국에서의 식생활 영위에 있어서 경험하는 식습관의 변화나 문제점 등을 연구함에 있다. 열량, 단백질, 지질, calcium, 철분, vitamin A, $B_{1}$, $B_{2}$, C, Niacin섭취량이 24-hourdietary recall방법에 의하여 추산되었다. 연구 목적 (2)를 위하여는 식품 섭취 빈도조사와 별도의 질문지를 작성하여 사용하였다. 여자의 calcium섭취량을 제외하고는 피 조사자의 모든 영양소 섭취량은 조리시 손실량과 Sampling error를 위한 안전율을 가산하고도 충분한 것으로 나타났다. 피 조사자들이 성공적인 식생활을 영위함에 있어서 당면하는 대표적인 두 가지 문제점들은 (1) 낯설은 식품에 대하며 저항감을 느끼는 개인에게는 결과적으로 선택할 식품의 폭이 좁아진다는 첨과 (2) 가족 구성원중 어른과 아이들이 미국 음식에 적응하는 속도와 정도가 다르므로 주부가 음식 장만에 어려움을 겪고 있다는 점 등으로 나타났다.

• Asia-Pacific Journal of Business
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• v.4 no.2
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• pp.11-20
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• 2013

This study extends the extant scope of understanding investment decision, beyond the dominant 'technical' emphasis on the application of discounted cash flow techniques. The research methodology draws the positivist and interpretive research paradigms. It uses a deductive approach, survey strategy and principal component analysis for the analysis. Three key sets of factors emerged as important in the investment decision process in the hydropower sector. They are: group consensus (framing), influences on own judgment (heuristics), and application of knowledge & experience (intuition). The use of purposive and convenient sampling might have some unintended impact on the findings. Consequently, any generalizations of the findings to a wider population of organizations and managers need to be made with care. It is hoped that this paper will encourage other researchers to go beyond the analytic techniques of investment appraisal that have dominated investment decision research and seek to balance the emphasis by focusing on human involvement and behavioral aspects of investment decision.

• Journal of the Korean Institute of Educational Facilities
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• v.12 no.3
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• pp.5-12
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• 2005

The purpose of this study is to understand and analyze characteristics of using pattern on the physical facilities and fundamental demands about improving factors associated with management of variation type. The teachers of four middle schools are participated through questionnaires with this survey. According to the results, supplemental factors of learning activities, convenient facilities for students, factors with space utilization, moving class and arrangement of similar subject blocks are influential in order on the awareness of teachers for correspondence of variation type. In the analysis of variance based on the sampling factors, significant differences were shown in the factors of attached group, gender, age and managemental experience of variation type. Especially, the factors with moving class and convenient facilities for students are analytically more differential than the other factors, therefore, these factors must be considered in detail.