• Economic and Environmental Geology
• /
• v.19 no.1
• /
• pp.35-55
• /
• 1986

The area of this study is located in the Sang dong district, Youngwol Gun, Kangwon Do, where the Ogcheon fold belt comes into contact with the Ryongnam massif. The area is covered by the Precambrian metasedimentary rocks of Yulri Group in the south from the line of Ungyosan-Maebongsan-Jansan-Taebaegsan Mountains and by the Cambro-Ordovician sedimentary rocks of Choseon Supergroup in the north. The Choseon Supergroup unconformably overlies the Yulri group. Several granitic intrusives occur in the Precambrian and Cambro-Ordovician terrain. The purpose of this study is to clarify the geochronology, mineralogical composition, geochemical characteristics, petrogenesis and tectonic settings of the Precambrian granitic rocks, and to evaluate the P.T. conditions of granitic intrusions. The K/Ar ages obtained from the muscovite of Nonggeori Granite, Naedeogri granite and pegmatite intruded into the Yulri Group are Early Proterozoic ($1805{\pm}18Ma$ to $1642{\pm}23Ma$), and those from the migmatitic pegmatite are Late Carboniferous ($305{\pm}4Ma$), respectively. The Precambrian granitic rocks are characterized by the presence of muscovite, tourmaline and grey feldspar with faint lineation of mafic minerals. In terms of mineralogical and chemical composition, the granitic rocks are felsic, calc-alkalic, peraluminous and S-type (ilmenite-series). The geochemical characteristics of major and trace elements indicate that the granitic rocks belong to syn-collision setting at the compressional plate margin. They were formed by progressive melting of relatively homogeneous crustal materials under 1~3kb and $670^{\circ}{\sim}720^{\circ}C$ in aqueous fluid conditions, and the Naedeogri granite was more fractionated than the Nonggeori granite. During the Taebaeg disturbance, Nonggeori granite, Naedeogri granite and pegmatite were intruded and emplaced into the Yulri Group. Migmatitic pegmatite occurring in the southwestern area, however, gave much younger muscovite age than the pegmatite intruded into the Yulri Group in rest of the area did, that might be due to the regional metamorphism of the Post-Choseon disturbance. The Geodo granitic mass and the Imog granite were intruded during the Bulgugsa disturbance.

• Korean Institute of Interior Design Journal
• /
• v.27 no.2
• /
• pp.186-195
• /
• 2018

In Korea, there is a need for safe and convenient elderly housing so that older people can enjoy a good quality of life and perform various daily activities while they maintain their health and well-being. Thus, this study is to suggest community -based housing settings for the elderly. We analyzed living space characteristics of the Continuing Care Retirement Communty(CCRC) in the U.S. In particular, we focused on CCRCs in the Oregon area and examined two types of settings: 1) a tower setting and 2) a town setting. The CCRC living arrangements include independent living, assisted living, nursing care, and memory care. We visited six CCRCs in Oregon during January through May in 2015. The field observations and floor plan surveys were conducted for data collection. The data analysis revealed that there are two types of arrangements: the suburban type and the urban type. Element analysis of the living unit designs for each CCRC type demonstrated typical space configurations. It was found that home care services were provided from local communities. It is suggested that community-based housing for the elderly should include mixed housing types so that community facilities can be shared. Medical services in the community were offered through healthcare institutions, disease prevention centers, welfare centers, and sports facilities. In order to apply these community-based care systems to elderly Korean housing, it is important to develop a community based on independent homes that share services and welfare facilities.

• Research in Community and Public Health Nursing
• /
• v.5 no.2
• /
• pp.162-180
• /
• 1994

The control of the chronic degenerative diseases becomes a challenge in Korea as the aging of the population progresses. Accordingly, the importance of the control of the hypertension, one of the major chronic degenerative diseases, in the primary health care settings increases. However, such control activities are still minimal. This study gives brief description of how the rural residents who are currently registered for the control of the hypertension feel about the activities of the health centers, subcenters and the CHP posts, in relation to the control of the hypertension. We also describe the knowledge and practice of the registered hypertensive. In general, the knowledge, the acceptance and the satisfaction of the respondents about the hypertension control activities were not very high. Respondents being managed by the health center showed the highest knowledge, acceptance and satisfaction, and those being managed by the subcenters ranked lowest. The knowledge about the hypertension was not satisfactory. There were great variations among the items in terms of the proportion answered correctly. As many as 60% of the respondents take medication regularly but only 4.5% were practicing weight control regularly. Despite some limitations of the study, the results can be very useful for those planning hypertension control programs. The educational materials and the dietary protocols need to be developed in accordance with the regional social and food pattern, so that they can be utilized with minimal modification for each beneficiary. We also suggest to minimize the area a health personnel covers. In other word, running several small health posts at village level would be more effective than running a subcenter at the township level, in terms of the hypertension control.

• Korean Journal of Human Ecology
• /
• v.15 no.6
• /
• pp.919-935
• /
• 2006

The purpose of this study was to analyze the relationship between outdoor play environments and child's play behaviors. The data were collected by field measurement survey, and non-participatory observation from 9 child care centers in Daejeon. The field measurement survey were conducted from June 20 to July 20, 2004, whereas non-participatory behavior observation were conducted from September 2 to October 10, 2004. The major results showed the following. 1) The characteristics of outdoor play environment in child care centers showed that most of them were too small and did not use the adequate surfacing to play various activities. In many cases, outdoor play settings was made of play equipment setting, play props and manipulative settings, and tree/vegetation. 2) Child's play behavior has been focused on functional play activity and construction play activity. 3) The relationship between outdoor play environments and child's play behaviors showed that small outside play environment with monotonous construction and multi-complex play equipments produced functional play behaviors on children. On the other hand, where various play areas were put together, we could observe relatively diverse play behaviors. However, in some cases, despite the small and monotonous play area, diverse play behaviors were observed. These playgrounds at least differed from others in that they provided the place where multi purpose play was possible. This finding shows that multi purpose play areas can be an alternative in small playground environment.

• The Journal of the Korean dental association
• /
• v.58 no.7
• /
• pp.388-397
• /
• 2020

Objective: The purpose of the study was to calculate the effective and absorbed organ doses of cone-beam computed tomography (CBCT) in pediatric patient using personal computer-based Monte Carlo (PCXMC) software and to compare them with those measured using thermoluminescent dosimeters (TLDs) and anthropomorphic phantom. Materials and Methods: Alphard VEGA CBCT scanner was used for this study. A large field of view (FOV) (20.0 cm × 17.9 cm) was selected because it is a commonly used FOV for orthodontic analyses in pediatric patients. Ionization chamber of dose-area product (DAP) meter was located at the tube side of CBCT scanner. With the clinical exposure settings for a 10-year-old patient, DAP value was measured at the scout and main projection of CBCT. Effective and absorbed organ doses of CBCT at scout and main projection were calculated using PCXMC and PCXMCRotation software respectively. Effective dose and absorbed organ doses were compared with those obtained by TLDs and a 10-year-old child anthropomorphic phantom at the same exposure settings. Results: The effective dose of CBCT calculated by PCXMC software was 292.6 μSv, and that measured using TLD and anthropomorphic phantom was 292.5 μSv. The absorbed doses at the organs largely contributing to effective dose showed the small differences between two methods within the range from -18% to 20%. Conclusion: PCXMC software might be used as an alternative to the TLD measurement method for the effective and absorbed organ dose estimation in CBCT of large FOV in pediatric patients.

• Asian Pacific Journal of Cancer Prevention
• /
• v.15 no.24
• /
• pp.10757-10762
• /
• 2015

The purpose of this study was to demonstrate the feasibility of VIA screening with cryotherapy and to record normative values for indicators anticipated in similar low resource settings. Women aged 30-49 years were targeted, resulting in 1961 women screened and treated at two primary health care (PHC) centres near Suva, Fiji. Recruitment was through provision of information, education and communication (IEC). Referrals to a gynaecology outpatient department (OPD) at a referral hospital occurred throughout the screening pathway. Participation was 32% (95%CI 31-33%), higher in iTaukei (Melanesians) women (34%, 95%CI 33-36) compared to Fijians of Indian descent (26%, 95%CI 24-28). Regression analysis, adjusted for confounders, indicated significantly lower participation in those of Indian descent, and age groups 35-39 and 45-49 years. Of those examined by VIA, 190 were positive with aceto-white lesions (9.9%), within the expected range of 8-15%, with minor geographic and ethnic variation. Positive VIA results were more common in the peri-urban area, and in those aged 35-39 years. Of women aged 30-49 years, 59 received cryotherapy (none of whom had significant complications), 91 were referred to OPD, two cervical carcinomas were identified and eight cervical intra-epithelial neoplasms (CIN) II-III were diagnosed. These results provide normative findings from a community-based VIA screening program for other similar low resource settings.

• Korean Journal of Social Welfare
• /
• v.50
• /
• pp.265-288
• /
• 2002

The use of alcohol is recognized as having negative consequences on clinical and psychosocial outcomes in service users with major mental illnesses. This necessitates an introduction of intervention measures in domestic mental health service in Korea. Since research basis on which such measures are developed lacks, this paper aims at exploring drinking patterns of Korean service users and suggesting directions and strategies for intervention. The data came from 151 service users recruited at 14 service settings in Seoul Metropolitan area. The quantitative part of the data includes their recent drinking experiences in terms of patterns and severity; the qualitative part includes information on the drinking context. The data were compared among three types of service settings, each of which differs in physical availability of alcohol by their users. Each group revealed distinctive features in drinking patterns, the author thus suggested directions and strategies of intervention specific to type of service setting.

• Journal of Radiation Protection and Research
• /
• v.28 no.1
• /
• pp.59-63
• /
• 2003

Purpose : Measurement of transmission dose is useful for in vivo dosimetry of QA purpose. The objective of this study is to develope an algorithm for estimation of tumor dose using measured transmission dose for open radiation field. Materials and Methods : Transmission dose was measured with various field size (FS), phantom thickness (Tp), and phantom chamber distance (PCD) with a acrylic phantom for 6 MV and 10 MV X-ray Source to chamber distance (SCD) was set to 150 cm. Measurement was conducted with a 0.6 cc Farmer type ion chamber. Using measured data and regression analysis, an algorithm was developed for estimation of expected reading of transmission dose. Accuracy of the algorithm was tested with flat solid phantom with various settings. Results : The algorithm consisted of quadratic function of log(A/P) (where A/P is area-perimeter ratio) and tertiary function of PCD. The algorithm could estimate dose with very high accuracy for open square field, with errors within ${\pm}0.5%$. For elongated radiation field, the errors were limited to ${\pm}1.0%$. Conclusion : The developed algorithm can accurately estimate the transmission dose in open radiation fields with various treatment settings.

• Journal of Community Nutrition
• /
• v.7 no.4
• /
• pp.175-183
• /
• 2005

Considering the increasing global burden of disease attributable to nutrition, the demand for national nutrition policies is growing stronger and stronger. The Republic of Korea is beginning to respond to this growing demand and there have been numerous recent achievements in the area of nutrition. The purpose of this paper is two fold. In the first part of the paper, an overview is provided about existing nutrition action in Korea. In the second part, information is elicited from Korean experts in the field of public health and nutrition. A structured questionnaire was sent directly to renowned Korean experts and was disseminated through the list serve of the Korean Nutrition Society. It asked about existing nutrition related policies, obstacles to nutrition policies in Korea, which professions are 'responsible' for the prevention of nutrition-related diseases and for example about existing nutrition programs within settings. Twenty-two questionnaires were returned. Based on the results, the following actions were considered crucial to develop and implement a nutrition policy in Korea: having a clear advocacy strategy for nutrition to raise awareness about the importance of nutrition, increase transparency of nutrition-related action and make the information easily accessible for all stakeholders, ensure the enforcement of regulations regarding misleading and incorrect food advertisements, strengthening the (public health) nutrition workforce, strengthen the settings-based approach and build and maintain partnerships, and last not least: educate and empower the citizens and ensure that healthy choices are 'easy choices'! Acknowledging the past and ongoing efforts in Korea, it is pivotal that the nutrition workforce grows stronger and the voice of nutritionists even louder, in order to promote and ensure the health and quality of life of the country's citizens. (J Community Nutrition 7(4) : $175\∼183$, 2005)

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.6 no.1
• /
• pp.178-202
• /
• 2012

In this paper, we first survey cross-layer architectures for Wireless Sensor Networks (WSNs) and Wireless Multimedia Sensor Networks (WMSNs). Afterwards, we propose a novel cross-layer architecture for QoS provisioning in clustered and multi-hop based WMSNs. The proposed architecture provides support for multiple network-based applications on a single sensor node. For supporting multiple applications on a single node, an area in memory is reserved where each application can store its network protocols settings. Furthermore, the proposed cross-layer architecture supports heterogeneous flows by classifying WMSN traffic into six traffic classes. The architecture incorporates a service differentiation module for QoS provisioning in WMSNs. The service differentiation module defines the forwarding behavior corresponding to each traffic class. The forwarding behavior is primarily determined by the priority of the traffic class, moreover the service differentiation module allocates bandwidth to each traffic class with goals to maximize network utilization and avoid starvation of low priority flows. The proposal incorporates the congestion detection and control algorithm. Upon detection of congestion, the congested node makes an estimate of the data rate that should be used by the node itself and its one-hop away upstream nodes. While estimating the data rate, the congested node considers the characteristics of different traffic classes along with their total bandwidth usage. The architecture uses a shared database to enable cross-layer interactions. Application's network protocol settings and the interaction with the shared database is done through a cross-layer optimization middleware.