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정규원,정규원 경찰대학 범죄수사연구원 2022 범죄수사학연구 Vol.8 No.1
With the progress of scientific technology in the field of genetics, the genetic information for use has been expanded and widely used for various purposes in many fields. Genetic genealogy is the use of DNA testing in combination with traditional genealogy methods to infer genetic relationships between individuals. This is currently used for not only inferring biological ancestors in their pedigree in research but also kinship testing and forensic investigation in practices. With the growing industry of DTC services, genetic genealogy is expanding, which proved its promising use by playing an important role in solving multiple cold cases in the US. However it was revealed that there were legal and ethical issues in the process regarding the control and use of genetic information generated with the informed consent of the purpose of the specific service. This situation made the discussion on issues related to the use of genetic genealogy and legal regulation in the US. In Korea, the situation is not such severe possibly due to a gap of genetic data available in countries. However, it is unpredictable for further application regarding the possible range of genetic information for use in genetic genealogy with highly advanced techniques in the future. Therefore, it is important to discuss possible risk and countermeasures able to be taken in advance. Here, we reviewed the precedent cases with potential issues in other countries, and discussed the current system in Korea. It is very important to continue discussing how to protect private information and genetic privacy, and to consider the advanced level of science and technology at the time of the discussion.
정규원,정환국,선희식,노재철 대한소화기학회 1977 대한소화기학회지 Vol.9 No.1
Among 1,526 cases performed gastrofiberscopy, 141 patients of upper gastrointestinal bleeding who were admitted to the Department of Internal Medicine, St. Marys Hospital of Catholic Kfedical College during the past 2 years 2 and 6 months from March l, 1974 to September 6,. 1976 were clinically observed. The results were as follows: 1. The incidence of upper gastrointestinal bleeding among 1,526 cases performed gastrofiber copy was 9.2%. The sex distribution was 114 in male and 27 in female with a mean age of 4b. The ratio of male to female was 4. 2: 1. 2. The sources of bleeding were gastric ulcer (27.7%), duodenal ulcer (17.7%), gastric carcnoima (17%) rupture of esophageal varices (13.5%), erosive gastritis (12. 1%), gastroducdenitis (3.5%), miscel Janeous (5.7%), and unknown origin (2.1%) in order. 3. The endoscopic accuracy in patients with upper gastrointestinal bleeding was gastric ulcer CG9. 2%3, gastric carcinoma (96.0%), erosive gastritis (88.2%) 3, and duodenal ulcer, gastroauodenitis, and rupture of esophageal varices were 100%. 4. The success rates in identifving the site of bleeding in relation to time of endoscopy after upper gastrointestinal bleeding were 63.2% within 24 houss, 47.1% in 24-48 hours, 17.6% in 48 72 hours, and 6.3% after 7 days. The success rate fell with increasing time after upper gastrointestinal bleeding. 5. The presence of more than one source of upper gastrointestinal bleeding site was found much in cur patients. The early endoscopy was more reliable than radiology for determining the origin of upper gastrointestinal bleeding, and multiple lesions were found only by endoscopic examination. 6. Complication of endoscopy for the diagnosis of upper gastrointestinal bleeding was 2 out of 141 cases (l.4%) one was arterial bleeding from the lesion of gastric biopsy and the other was aggravation of gastric ulcer bleeding. Both of these was reversible.
PZT에 의하여 구동되는 초정밀 위치 결정 장치의 동특성
정규원 충북대학교 산업과학기술연구소 2010 산업과학기술연구 논문집 Vol.24 No.1
Positioning stages which have ultra high positioning accuracy are widely used in IT or NT industry. In this paper, an ultra precision stage which consists of flexure hinges and piezoelectric actuator is designed and fabricated. The effect of the natural vibration mode on the positioning accuracy was studied using FEM. From the analysis it was found that the supporting linkages moved in several modes and the working table could he tilted, those could degrade the positioning performance.
Prediction of Cancer Incidence and Mortality in Korea, 2011
정규원,박소희,원영주,공현주,이주영,박은철,이진수 대한암학회 2011 Cancer Research and Treatment Vol.43 No.1
Purpose To estimate the current cancer burden in Korea, cancer incidence and mortality were projected for the year 2011. Materials and Methods The cancer incidence data from 1999-2008 were obtained from the Korea National Cancer Incidence Database, and the cancer mortality data from 1993-2009 were obtained from the Korea National Statistics Office. Cancer incident cases and rates in 2011 were projected from fitting a linear regression model on observed age-specific cancer incidence rates against observed years, then multiplying the projected age-specific rates by the age-specific population. For cancer mortality, a similar procedure was applied for projection except that a Joinpoint regression model was used to determine at which year the linear trend significantly changed. Results A total of 216,809 new cancer cases and 71,036 cancer deaths are projected to occur in Korea in 2011. For all sites combined, the crude incidence rates are projected to be 437.9 and 420.5 and the age-standardized incidence rates are projected to be 336.5 and 279.7 per 100,000 for men and women, respectively. Conclusion Cancer has become an important public health concern in Korea, and as Korea becomes an aged society, the cancer burden will continue to increase.