• Journal of Climate Change Research
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• v.5 no.3
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• pp.249-256
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• 2014

Permafrost is frozen soil below $0^{\circ}C$ for two or more years. Surface of permafrost is called as active layer that seasonally thaws during the summer. Although the thawing of permafrost may deepen the active layer and consequently increase the microbial activity, the microbial community structure in this habitat has not yet been well described. In this study, we presented bacterial and archaeal diversity in the active layer soil from Resolute, Canada using pyrosequencing analysis. The soil sample was collected from the surface of the marsh covered with moss and Carex. A total of 7,796 bacterial reads for 40 phyla and 245 archaeal reads for 4 phyla were collected, reflecting the high diversity of bacteria. Predominant bacterial groups were Proteobacteria (37.7%) and Bacteroidetes (30.0%) in this study. Major groups in Archaea were Euryarchaeota (51.4%) and Thaumarchaeota (46.1%). Both methane producing archaea and consuming bacteria were detected in this study. Although it might be difficult to characterize microbial community with only one sample, it could be used for the basis of assessing the relative importance of the specific groups with a high resolution on the bacterial and archaeal community in this habitat.

• Korea journal of population studies
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• v.21 no.2
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• pp.144-181
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• 1998

The main purpose of this study is to understand the socio-cultural adaptation and life-styles of the Chinese and Korean immigrants in Vancouver, Canada. Of interest are the immigration policies of the Canadian government and formation of the Chinese and Korean minority societies in Vancouver. Attention is given to estimating the size of the Korean population in Vancouver, utilizing the listings of telephone directory and the proportion of surname Kims in the Korean population. This paper focuses on explaining the distinctive adaptation patterns and socio-cultural characteristics of the Chinese and Korean immigrants. A conceptual scheme of socio-cultual adaptation of the minority immigrants, which is hypothesized as a function of the participation to the host society and the cultural identity, is also developed in this paper. Findings of the analysis suggest that the Chinese and Korean population in Vancouver witnessed a rapid growth since the mid 1980s, when the Canadian government launched the immigration programs for investors and entrepreneurs. It appears that the Chinese and Korean immigrants hold strong ethnic identity and maintain cultural traditions and life-styles of their own. While Chinese immigrants are characterized by active participation to the host society, Korean immigrants tend to confine themselves to the Korean enclave, and thus keep a certain distance from the host society. This appears to be particularly true for the Koreans who immigrated with a status of investor or entrepreneur. As the key force behind the ethnic differences in their adaptation, the role of voluntary associations is stressed. Finally, the future prospects of the Chinese and Korean societies and their acculturation are discussed in this study.

• Asian-Australasian Journal of Animal Sciences
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• v.23 no.1
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• pp.1-6
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• 2010

The objectives of this study were to i) investigate genetic performance for linear type traits of individual Holstein dairy cows, especially focusing on comparative traits, and to estimate genetic variances for these traits using actual data, and ii) compare genetic performance and improvement of progeny by birth country of the cows. Linear type traits defined with five comparative traits on this study were general stature composite (GSC), dairy capacity composite (DCC), body size composite (BSC), foot and leg composite (FLC), and udder composite (UDC). These traits were scored from 1 to 6 with 1 = poor, 2 = fair, 3 = good, 4 = good plus, 5 = very good and 6 = excellent. Final scores (FS) were also included in this study. Data used was collected from the years 2000 to 2004 by the Korea Animal Improvement Association (KAIA). Only data of more than five tested cows by herd appraisal date and by sires having more than ten daughters were included to increase the reliability of the data analyses. A total of 30,204 records of the selected traits, which was collected from 26,701 individuals having pedigree information were used. Herd appraisal date, year of age, lactation stage (grouped by month), and time lagged for milking (in hours) were assumed as fixed effects on the model. Animal additive genetic effects considering pedigree relationship and residual errors were assumed with random effects. Year of age at appraisal date was classified from one to nine years of age, assigning the value of nine years of age for animals that were greater than or equal to nine years of age. From our results, the estimate for heritability was 0.463, 0.346, 0.473, 0.290, and 0.430 on GSC, DCC, BSC, FLC and UDC, respectively. The estimate for FS heritability was 0.539. The greatest breeding values for GSC were estimated for Canada, with the breeding values for American lines increasing for 10 years starting in 1989 but tending to decrease after that until 2004. For DCC, the breeding values for American and Canadian lines showed similar patterns until 1999, after which the breeding values for the American lines declined sharply. For BSC, data from Korea, Canada and the USA followed similar trends overall except when the breeding values of the American lines decreased starting in 1999. Overall, the methods used to evaluate genetic performance in this study were acceptable and allowed for the discovery of differences by country of genetic origin, likely due in part to the American use of selection indexes based primarily on milk yield traits until methods for evaluating other traits began to emerge.

• Health Policy and Management
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• v.14 no.1
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• pp.24-43
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• 2004

Although alcohol misuse contributes substantially to mortality from diseases, injuries and adverse effects, a few attempts have been made to figure out size of adverse consequences attributable to alcohol in Korea. This study was conducted to describe trends of estimated deaths attributable to alcohol in Korea. Estimations were made by employing Korean alcohol aetiological fraction(AEF) into deaths from alcohol-related diseases, injuries, and adverse effects from year of 1995 through 2000. Korean AEF was derived from previous studies on AEF applied to USA and Canada (Schultz et al.,1991; English et al., 1995) with reflecting peculiar drinking patterns in Korea. An average number of deaths attributable to alcohol was 21,123, accounting for 8.76% of all deaths reported to National Statistical Office during the period. Death rates attributable to alcohol tended to decrease from year of 1995 to 1997 and then increased with peak at year of 1999. Sex-age standardized alcohol attributable death rates varied among areas, with those of metropolitan areas being lower than those of non metropolitan areas. Years of potential life lost (YPLL) were estimated to reflect qualitative aspect of deaths attributable to alcohol. Similar change patterns during the year were observed between number of deaths and YPLL. Average YPLL of men was longer than that of women by about 4 years. Some implications for future study have been discussed.

• Korean Medical Education Review
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• v.16 no.1
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• pp.11-15
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• 2014

A number of medical schools in Korea have been using computer-based testing (CBT) for evaluating their students' scientific and/or clinical performance since the early 1990s. Introducing CBT to medical education would have several advantages: first, presenting figures and audio-video files of clinical content is simple with CBT, making it possible to evaluate medical students' competency with navigating more realistic clinical situations at minimum cost; second, CBT enables automatic item analysis and score reporting. To establish CBT, constructing an item bank with item parameters such as difficulty or discriminating parameters will be needed. To select more psychometrically sound items, analysis of the items according to item response theory is necessary. CBT has already been introduced in high stakes tests like the United States Medical Licensing Examination and the Medical Council of Canada Qualifying Examination. The National Health Personnel Examination Board in Korea is also planning to introduce a CBT-based version of the National Medical Examination soon. Thus all medical schools in Korea will need to introduce CBT and construct item banks to prepare their students for their licensing examinations and to measure the students' competency more accurately.

• Journal of Environmental Health Sciences
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• v.35 no.2
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• pp.71-77
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• 2009

In Korea, asbestos related diseases (ARDs) associated with occupational and environmental asbestos exposures have been reported, and commercial products contaminated with asbestos have gathered huge public attentions recently. Review of previous studies was conducted. Whereas asbestos consumptions among developed countries have decreased, those of Asian countries have increased, which showed typical international transfer of hazardous industries. In Korea residents around former asbestos mines had ARDs, which were reported in many countries such as South Africa, Canada and Australia. ARDs among residents around asbestos factories were found in many countries such as United Kingdom, United States and Italia, and increased relative risks were reported among residents around asbestos textile factories in Korea. Increased air asbestos concentrations by environmental asbestos leakages from factories were correlated with higher malignant mesothelioma incidence rates. When air dispersion model applied, excess incidence rate as far as 2.5 km from a factory were observed. As mesothelioma incidence rate, a representative index of ARD, in Korea has not reported systemically, mandatory reporting system by health personnel who diagnose the disease needs to be introduced. It is hard to conclude that commercials with contaminated asbestos do not have adverse health effects, and further studies are needed to solve these public questions.

• Journal of the Society of Naval Architects of Korea
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• v.45 no.5
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• pp.513-522
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• 2008

In this paper, one of the widely-used ice resistance prediction methods, introduced by Spencer(1992) of the Institute for Ocean Technology, Canada, is reviewed. Spencer's component-based scaling system for ship-ice model tests is analysed to estimate the ice resistance of various types of icebreaking vessels (Canadian MV Arctic, Terry Fox, R-Class icebreaker, US icebreakers Polar Star and Healy, Russian SA-15 cargo ships, Japanese PM Teshio and a model ship). The general form and the non-dimensional coefficients in ice resistance prediction formula are obtained using the published ice model test and full-scale sea trial data. The applicability of Spencer's method on R-Class icebreaker is discussed to estimate ice resistance for the larger icebreaking cargo vessels. Additional parameters to account for the difference in hull forms of icebreakers and cargo vessels are recommended to be included in the Spencer's original ice resistance prediction formula.

• Journal of Distribution Science
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• v.14 no.6
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• pp.5-15
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• 2016

Purpose - The continuously fluctuating consumer who desires simplicity and convenience has had much influence on the food industry. This trend has led to a new food market sector known as HMR (Home Meal Replacement). This study aims to understand the status of the HMR market in United States. Research Design, Data, and Methodology - In order to research the status of the HMR market, quantitative analysis and secondary research were carried out. By using data from Euromonitor, Agriculture and Agri-Food Canada, we have estimated food segment sales contributions to the HMR market in United States. Results - HMR products are being sold in various channels such as traditional stores, convenience stores, and even farmers' markets. Some restrictions on the HMR products exist for food safety. Conclusions - HMR industry in United States has expanded continuously. To keep pace with the growth of the HMR market, the United States government has focused on food and safety regulations with regards to the products used in HMR. Finally, this study discusses the implications for Korean HMR market.

• Journal of the Korean Society for Library and Information Science
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• v.47 no.3
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• pp.251-274
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• 2013

This study aims to analyze data management policies offered by 15 government funding agencies in the U.S., UK, Canada, and Australia, and to make recommendations for developing data management policies in Korea. For the analysis of data management policies, five criteria were suggested based on literature review as follows: 1) the definition of research data, 2) principles of data management, 3) data management plan, 4) the implementation of data management, 5) legal and ethical issues. It was found that there was no policy that covers all the criteria for the analysis. Several funding agencies, however, commonly dealt with each criteria in their data management policies. Based on the findings from the analysis, this study made the following suggestions: First, data policies provide definitions and types of research data based on the understanding of data creation in the fields of funding interests. Second, data policies include principles of data management applicable to data practices in Korea. Third, data policies implement data management plans to promote responsibility of researchers for managing data. Fourth, data policies specify data management implementations to facilitate and support data sharing practices. Fifth, data policies should minimize legal and ethical challenges in data sharing through the review of the applicability of related laws and regulations and their improvement.

• The Journal of Engineering Geology
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• v.33 no.4
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• pp.611-626
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• 2023

Overseas examples of the characterization stage of site selection proposed by the International Atomic Energy Agency were reviewed to highlight the factors necessary for consideration in the deep disposal of high-level radioactive waste. Studies in Sweden, Finland, the USA, and Canada were considered. Site investigations in Sweden and Finland commonly covered the fields of geology, hydrogeology, and hydrogeochemistry using similar field investigation techniques. The USA considered survey groups and factors under pre- and post-lockdown guidelines, as well as those for desaturated and saturated surveys. involving geophysical, hydrological, hydrogeological, hydrogeochemical, mechanical/physical, and thermal-characterization investigations. Canada provided a list of investigative methods for both preliminary and detailed site assessments including geological, physical, boring, hydrological, laboratory testing, and chemical analysis studies. Results of this study should elucidate site-selection investigation factors and survey methods applicable to Korea.