A Plant Breeder’s View on H5N1

Soon‐Kwon Kim 한국육종학회 2008 한국육종학회지 Vol.40 No.2

International conferences to block the spread of Avian bird flu occurred in Beijing, 2006 and others warned of the seriousness of the H5N1 strain. The meetings succeeded in generating billions of dollars from USA, EU and World Bank. Migratory birds seem to play a major role in the spread of the aggressive strain globally from Asia to Europe and Africa. Experiences of tolerance breeding of maize (Zea mays L.) for four decades against 20 biotic stresses suggest that the prime cause of the occurrence of H5N1 strain was due to the human beings’counter‐efforts against nature. Excessive use of chemicals (spray and injection) in the commercial poultry farms had created high selection pressure on virus. The new strain had mutated for survival. Attempting to eliminate the virus by chemicals for 100% control is a dangerous way to control biotic stresses. This can create more aggressive strains. A solution would be to build up tolerability of the commercial animals against the virus. Improvement of poultry cage environments and respect for nature must be integrated. Potential foes must be watched.

위절제술 환자의 표준진료지침 개발 및 적용 효과

김은희,김철규,이순교,김순덕,이혜옥,권정순,이경미,이민미,심순미,유용만,신종식,강은희,이상일,김병식,오성태,육정환,박수길 한국의료QA학회 2003 한국의료질향상학회지 Vol.10 No.2

Background : Gastric cancer is the most common malignant tumor in Korea. surgical operation is one of the major treatment modalities for gastric cancer patients. Therefore, gastrectomy is one of the most common procedures in General Surgery. There were variation in length of hospital stay and medical treatment for gastrectomy between three surgeons at Asan Medical Center. Clinical pathways have received considerable attention as a tool for recucing the medical practice variation, increasing the efficiency of care process, and improving the quality of care. The aim of this study was to evaluate the effect of a clinical pathway for gastrectomy in gastric cancer patients. Methods : The clinical pathway for gastrectomy was developed and implemented by a multidisciplinary group in Asan Medical Center. A computerized clinical pathway program was developed and revised after a pilot test. A total of 145 patients underwent gastrectomy by three surgeons at Asan Medical Center. We compared the length of hospital stay, patient satisfaction, and unplanned readmission rate between the pre-pathway group(n=67) and the post-pathway group(n=78). We also investigated the degree of satisfaction among the physicians and nurses who were main end-users of the clinical pathway. Results : The clinical pathway was applied to all target patients. The average length of hospital stay was shortened from 12.7days to 10.6days(p<0.01). The degree of patient satisfaction with the care process changed from 90.3% to 89.2% after the implementation of the clinical pathway, but the difference was of satistically significant(p=0.761). Unplanned readmission rate was 2.9% in the pre-pathway group. More than 90% of physicians and nurses answered that the clinical pathway had been a useful tool in their medical practice. Conclusions : The findings of the study demonstrated that implementation of the clinical pathway for gastrectomy produced substantial reduction in the length of hospital stay while improving the quality of patient outcomes. The computerized clinical pathway program can be used as one of the powerful patient management tools for reducing the practice variations and increasing the efficiency of care process in Korea hospital settings.

저해음의 비음화 : 음운론 및 음성학적 접근 Its Phonology and Phonetics

안현기,권순석,김기열 대한언어학회 2000 언어학 Vol.8 No.1

Ahn, Hyunkee, Soon-Suk Kwon, and Ki-Yeol Kim. 2000. Obstruent Nasalization: Its Phonology and Phonetics. Linguistics 8-1, 27-38. This paper discusses a Korean phonological rule, Obstruent Nasalization--i.e., an obstruent is phonologically nasalized when followed by a nasal. As is well known, this rule is productively prevalent in Korean, but not in English. Within the Optimality Theoretic framework, the difference in this phonological pattern between the two languages is well captured by means of adjusting the dominance relationship between two constraints (markedness and faithfulness constraints). This constraint-based explanation, however, doesn't suffice our question of why the phenomenon is phonetically natural in Korean, but cross-linguistically rare. To this question, we will provide one possible answer by suggesting that the markedness constraint is phonetically oriented due to a phonetic constraint on laryngeal feature juxtapositions. (Kyung Hee University)

Increased Urinary KIM-1 and Tubular KIM-1 Expression in IgA Nephroapathy (초)

( Mi Seon Seo ),( Soon Hyo Kwon ),( Moo Young Park ),( Soo Jung Choi ),( Jin Seok Jeon ),( Hyun Jin Noh ),( Jin Gook Kim ),( Dong Cheol Han ),( Seung Duk Hwang ) 대한내과학회 2010 대한내과학회 추계학술대회 Vol.2010 No.-

Multiple Markers of Contrast Induced Nephropathy after the Percutaneous Coronary Intervention

Byoung-won Park,Seong Soon Kwon,Min Ho Lee,Do Hoi Kim,Min Su Hyon,Duk Won Bang 순천향대학교 순천향의학연구소 2018 Journal of Soonchunhyang Medical Science Vol.24 No.1

Objective: Contrast-induced nephropathy (CIN) frequently occurs after percutaneous intervention. Objective of this study was to investigate the usefulness of serum cystatin C, neutrophil gelatinase-associated lipocalcin (NGAL), urinary kidney injury molecule-1 (KIM-1), and interleukin-18 (IL-18) as early predictors for CIN after percutaneous coronary intervention (PCI). Methods: In 53 patients who underwent PCI were enrolled. Serum creatinine and cystatin C level were measured immediately before, and 24 hours and 48 hours after catheterization. Serum NGAL, urinary KIM-1, and IL-18 were measured immediately before, and 4 hours, 24 hours, and 48 hours after catheterization. CIN was defined as a rise in creatinine 0.5 mg/dL or 25% above baseline. Results: CIN occurred in four patients (7.5%). Serum cystatin C levels were higher at 24 hours and 48 hours in CIN patients than in those without CIN (P<0.05). Serum NGAL levels were higher at 48 hours in CIN patients than in those without CIN. Urinary KIM-1 levels were higher at 48 hours in CIN patients than in those without CIN. There were no significant markers of CIN on multi-variate analysis. Conclusion: In this study, the occurrence of CIN after PCI was 7.5%. Although there were some time-course changes in serum cystatin C and urinary KIM-1 after PCI, there was no significant predictor for CIN after PCI.

인삼 선발계통의 지역적응성 검정

Bong Jae Seong,Sun Ick Kim,Ka Soon Lee,Moo Geun Jee,Su Dong Kim,A Reum Kwon,Hyun Ho Kim1,Young Chang Kim 한국약용작물학회 2017 한국약용작물학술대회 발표집 Vol.2017 No.05

Background : For cultivation of varieties of ginseng, the pure line selection method, which is to select the best among those cultivated in farms for pedigree breeding, replicated yield trials and regional adaptation trials before registering as a new variety, is widely used. Although there are 25 registered varieties of ginseng in Korea, the quality of ginseng is declining together with the amount of harvest being decreased by 15 - 20% due to the heat injuries and diseases from the warming & abnormal climate. Thus, the needs for development of disaster-resistant varieties with better chances of surviving through high temperature, salts and disease are increasing. Therefore, this study is to cultivate disaster-resistant varieties among those selected for their disaster tolerance and salt tolerance through regional adaptation trials. Methods and Results : As a result of examining the growth characteristics of the selected 2 - 5 year old varieties used in the study, among the 5-year old crops, Goryeo 4 and Eumseong 5 showed superior growth in both above and below aerial parts, and among the 4-year old crops, Eumseong 11 and Cheonryang showed superior growth while the growth in the below aerial parts were satisfactory in the order of Cheonryang > Eumseong 10 > Eumseong 11 > Eumseong 9. Among the 3-year old crops, the most superior growth in both above and below aerial parts was observed in Eumseong 14 with the weight of the below aerial part, root diameter and taproot length at 13.8 g, 11.8 ㎝ and 6.2 ㎝ respectively. Among the 2-year old crops, Eumseong 10 showed the most superior growth in both above and below aerial parts. Conclusion : Based on the above results, Goryeo 4 and Eumseong 5 among the 5-year old crops, Eumseong 11 among the 4-year old crops, Eumseong 14 among the 3-year old crops and Eumseon 10 among the 2-year old crops showed the most superior growth among the selected varieties. The growth characteristics of both above and below aerial parts in each year will continuously be monitored.

세무조정과 기업특성 변수의 관련성 연구

권순창,김형국,채종화 한국세무회계학회 2004 세무회계연구 Vol.14 No.-

본 연구는 세무조정과 기업특성변수간의 관련성검증을 동해 여러 가지 조세정책의 유효성 및 기업특성변수와 세무조정변수간의 체계적 관련성에 대해 검증하였다. 연구결과 첫째, 기업규모별로 세무조정변수들에 대한 차이를 검증한 분산분석에서는 영구적 차이 차감에 있어 유의한 차이가 있는 것으로 나타났으며 또한 둘째, 영구적 차이 가산에 있어 유의한 차이가 있는 것으로 나타났다. 셋째, 기업의 연구개발투자비율과 차감조정 간에는 유의한 차이가 있는 것으로 나타났다. 넷째, 기업의 이익증가율이 양(+)인 기업과 음(-)인 기업간에는 일시적 차이 가산 및 가산, 일시적 차이에 있어 차이가 있는 것으로 나타났다. 다섯째, 기영의 자본집약도를 기준으로 구분된 기업집단간에는 영구적 차이 가산금액에 있어 유의한 차이가 있는 것으로 나타났다. 따라서 기업의 세무조정과 관련된 기업특성변수는 기업규모, 부채의존도, 연구개발투자비율, 이익증가율, 자본집약도입이 검증되었다. 조세당국이 조세정책을 통해 달성하고자 의도했던 기능을 수행하는 기업의 세무조정이 실제로 다른 기업에 비해 차이가 나는가를 살펴봄으로써 조세정책의 효과가 전반적으로 달성되고 있는지를 계량적으로 판단해 볼 수 있으며 앞으로의 조세정책을 결정하는 데에도 유용하다 할 것이다.

임신 종결 후 발생한 자궁 동정맥 누공에서 자궁동맥색전술로 치료한 1예

김종민,이해혁,김태희,남계현,심일구,이권해,김형문,이임순,장종호 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Arteriovenous fistula of uterus is rarely reported disease. This vascular malformation is very dangerous condition because Dilatation & curettage can cause massive uterine bleeding without accurate diagnosis. The diagnosis is made by angiography, gray scale ultrasonography, color and duplex doppler ultrasonography, computed tomography, and magnetic resonance imaging is helpful. Especially color and duplex doppler ultrasonography is allows convincing detection and diagnosis of arteriovenous fistula. Recently transcatheter uterine artery embolization is treatment of choice. We have experienced a case of arteriovenous fistula of uterus. Which is presented with a brief review of literature.

인터넷 광고에서 방문 횟수를 측정하는 암호학적 방법들에 관한 고찰

김순석,신제용,김성권 중앙대학교 정보통신연구소 2000 정보통신연구소논문집 Vol.2 No.2

본 논문에서는 웹 광고에서 웹사이트를 방문하려는 고객과 서버(예를 들어, 웹사이트 발행자들)간에 상호작용을 측정하기 위한 안전하고도 효율적인 측정 방법들에 관해 살펴보고자 한다. 대개의 웹 광고는 많은 고객들과 서버들 그리고 서버들에 의해 제공된 고객들의 수 에 관한 정보를 수집하는 감사 기관의 상호작용으로 이루어진다. 이때, 대부분의 서버들은 실제 제공되는 것보다는 훨씬 많은 수의 방문 정보를 감사기관에게 제시함으로서 보다 많은 광고 수익을 얻고자 한다. 이에 본 논문에서는 과장된 서버로부터의 방문기록을 막는 암호학적으로 안전한 몇 가지 측정 방법들을 소개하고자 한다. 아울러 이들 측정 방법들은 전반적인 통신 트래픽 이라든가 다른 부수적인 오버헤드가 부가되지 않을 만큼 효율적이어야 할 것이다. In this paper we study on secure and efficient metering schemes to measure the interaction between clients and servers(e.g. the web site publishers) on the web advertisements. In a representative scenario there are many clients and servers, and an audit agency should collect information about the number of clients that were served by each server. A typical server is motivated to claim that it served many more clients than it has actually served. We introduce some metering schemes which are cryptographically secure and prevent servers from inflating the count of their visits. At the same time the metering schemes should be efficient and do not add a considerable overhead to the different parties and to the overall communication traffic.

Plasma arc curing system을 이용한 브라켓의 접착에 관한 연구

김정윤,김종수,권순원 大韓小兒齒科學會 2001 大韓小兒齒科學會誌 Vol.28 No.4

최근에 소개된 Plasma arc lamp를 이용한 고광도 광조사기는 조사되는 광도를 크게 증가시켜 필요한 조사시간을 단축시키고자하는 연구의 결과중 하나이다. 교정 임상에서 브라켓의 접착시 고광도 광조사기를 사용하여 시술시간을 줄인다면 환자 뿐만 아니라, 술자에게도 시간적이나 경제적으로 많은 도움을 줄 것이다. 이 연구의 목적은 Plasma arc light를 사용하여 접착시킨 브라켓의 치면에 대한 전단강도를 측정하고 이를 기존의 할로겐 램프를 이용한 광중합 방법과 비교해보기 위함이다. Ⅰ군은 할로겐 램프를 사용하는 XL3000??을 이용하여 총 50초간 광중합하였고 Ⅱ군은 plasma arc lamp를 사용하는 Flipo??를 이용하여 2초간 광중합하였으며 Ⅲ군도 Filpo??를 이용하여 총 5초간 광중합하여 전단강도 측정을 시행한 결과는 다음과 같다. 1. 세 군의 전단강도의 평균은 비슷한 수치를 나타내었다. 2. 세 군간의 통계학적 유의 차가 없었다(p>0.05). Recently, plasma arc curing system for curing resin composites has been introduced. This is characterized by a high output of light energy, which has the advantage of reducing the chair time and thereby making the treatment more comportable for the patients as well as for the dentist. The purpose of this study was to compare the shear bond strengths of light-cured orthodontic adhesive polymerized with conventional halogen light and plasma arc light. The 2 curing devices used were the XL2000 (3M, USA) conventional curing light and the Flipo (LOKKI, France) plasma arc light. The results from the present study can be summarized as follows; 1. The mean shear bond strength for three groups were quite similar for 50 second conventional light group, 2 second plasma arc curing light group, 5 second plasma arc curing light group. 2. There was no statistically significant difference for three groups(p>0.05).