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Considering Insecticide Resistance to Insecticides
Siwoo Lee,Sang-Guei Lee,Chang-Gyu Park,Kwang-Ho Kim,Hong-Hyun Park 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05
Insecticide resistance development of insect pests is one of the main threatening factors against stable crop production and keeping human life safe from insect pest disease vector. To know properties of insecticides resistance is very important to develop a management program against insecticide resistance pests. Insecticide resistance development is an event of evolutionary process. We have to deal with insecticide resistance of insect pests by interaction between insecticide and insect pests in their chemical, physical and biological environment. We can glimpse at and infer the evolutionary process of insects from investigating and comparing the resistance level of insect pests to insecticides. Huge amount and many kinds of insecticides have been sprayed to control insect pests. Development of insecticide resistance of insect such as housefly and mosquito, known as most common medical insect, is a result of adaptation to environment covered with insecticides. We can easily assume that the amount and kind of insecticides sprayed the evolutionary force to the diversity of insecticide resistance. The resistance diversity will be very good character of good markers for determining geographical isolation.
이시우(Siwoo Lee),김광호(Kwang-Ho Kim),박창규(Chang-Gyoo Park),박홍현(Hong-Hyun Park),이관석(Kwan-Suk Lee),최병렬(Byeong-Ryeol Choi),이상계(Sang-Guye Lee) 한국농약과학회 2010 농약과학회지 Vol.14 No.3
A series of experiments was carried out for selecting insecticides and determining proper spraying time to control pea weevil (Bruchus pisorum Linnaeus) in Jeonnam area. In the field trial two times spray with diazinon, carbaryl, imidacloprid, spinosad, etofenprox, clorpyrifos-methyl showed good control effect and threetimes spray showed the better control effect. The second spray (spraying on 10th of May) took the major role of insecticide effectiveness expression for controlling pea weevil. Further trial for selecting insecticides among organophosphates to control pea weevil in lab was conducted and every organophosphate insecticide tested was very effective to pea weevil even at the concentration of one forth of its recommending concentration.
이시우(Siwoo Lee),김광호(Kwang-Ho Kim),박창규(Chang-Gyoo Park),박홍현(Hong-Hyun Park),이관석(Kwan-Suk Lee),최병렬(Byeong-Ryeol Choi),이상계(Sang-Guye Lee) 한국농약과학회 2010 농약과학회지 Vol.14 No.3
Six insecticides, monocrotophos (24%, Lq), milbemectin (1%, Ec), tebufenpyrad (10%, Ec), propargite (30%, Wp), dicofol (42%, Ec), and fenpropathrin (5%, Ec) were studied for their LC??s to local two-spotted spider mite (TSSM) strains collected at apple orchards in Chungju, Kunwi and Sobo in Korea. Monocrotophos and fenpropathrin were not effective due to resistance development, but milbemectin, tebufenpyrad, dicofol and propargite were effective to TSSM. LC?? values to TSSM strains showed the same distribution pattern among apple orchards. However, TSSMs from different apple orchard were clustered into different groups.
실사고 데이터를 이용한 EES에 따른 인체상해도 경향성 분석
이승상(Seungsang Lee),송영준(Youngjun Song),윤영한(Younghan Youn),이재완(Jaewan Lee),김시우(Siwoo Kim),이강현(Kanghyun Lee),이희영(Heeyoung Lee) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
Currently frontal crash safety evaluation is conducted by crashing a vehicle against a rigid barrier in Korea. It evaluate crash performance of a vehicle in a barrier test in terms of vehicle stiffness and strength. But this method is basic test. Probably, This test isn’t matched in Real World Crash Collision about occupant injury. So The availability of in-depth accident data is prerequisite for each efficient traffic safety management system. In this study, As using photo modeler program, It finds out relationship between occupant injury based on AIS and Estimated Energy Equivalent Speed in the real world in-depth accident data and compares crashing a vehicle test against a rigid barrier by using Madymo to Estimated Energy Equivalent Speed in the Real World in-depth accident data. Using Real World in-depth accident data is essential part of improving vehicle safety and reduction of traffic fatality in Korea.
Lee, Hyeon-Sook,Lee, Siwoo,Park, Sohee,Baek, Younghwa,Youn, Ji-Hye,Cho, Dan Bee,Jin, Jung-Hyun,Shin, Aesun,Park, Sue K.,Kang, Keon Wook,Lim, Young-Khi,Kang, Chul Hwan,Yoo, Keun-Young,Ko, Kwang-Pil Kluwer 2018 QUALITY OF LIFE RESEARCH Vol.27 No.3
<P>Our study suggests that somatic and psychological discomfort symptoms are associated with HRQOL. The main factors related to HRQOL vary according to age and large prospective studies and clinical trials are needed to clarify the association between specific symptoms and HRQOL according to the age.</P>
Physiological indices for the categorization of Mibyeong severity
Lee, Kyung Eun,Kim, Joong Jae,Jin, Hee-Jeong,Lee, Siwoo,Shim, Eun Bo Elsevier Science B.V., Amsterdam 2017 Integrative medicine research Vol. No.
<P><B>Background</B></P><P>Individuals with Mibyeong are difficult to identify. Although extensive research has attempted to introduce an easy and clear method for Mibyeong diagnosis, the indices used to categorize Mibyeong severity are unclear. We hypothesized that individuals with severe Mibyeong have reduced physiological function, thus activating homeostatic regulatory functions and inducing alterations in vascular resistance and capacitance.</P><P><B>Methods</B></P><P>Novel indices used to categorize Mibyeong severity based on the cardiovascular system model are described. We analyzed resistance and capacitance values using a simple cardiovascular system model optimally satisfying the measured systolic and diastolic pressures, heart rate, and age.</P><P><B>Results</B></P><P>Clinical data from 509 individuals were examined to test our hypothesis. A statistical analysis revealed that the vascular resistance was lower in individuals with severe Mibyeong symptoms and decreased with increasing Mibyeong severity, whereas the vascular capacitance showed an opposite trend.</P><P><B>Conclusion</B></P><P>We derived indices to categorize Mibyeong severity and tested 509 individuals. An epidemiological analysis revealed that the vascular resistance decreased while the capacitance increased with increasing Mibyeong severity, indicating the validity of the values as Mibyeong indices.</P>
Lee, Soojin,Yu, Jun-Sang,Lee, Siwoo KOREAN PHARMACOPUNCTURE INSTITUTE 2015 Journal of pharmacopuncture Vol.18 No.4
Objectives: The purpose of this study was to investigate the psychological characteristics of the Sasang constitutions by using Braverman nature assessment (BNA). Methods: One hundred seventy-four students participated in this study, and among them, the 142 individuals who had clearly identified Sasang constitutional types were used for the analysis. Sasang constitutions and the Braverman temperaments of the subjects were determined by using a questionnaire for the Sasang constitution classification (QSCC) II and BNA, respectively. Body mass index (BMI) was used to compare the inclinations of the Sasang constitutions and Braverman temperament types. Results: Significant differences in Braverman temperament type existed among the Sasang constitutions (P = 0.042), and the relations between Soyangin and the dopamine type and between Taeeumin and the gamma-aminobutyric acid (GABA) type were meaningful. Significant differences were also shown in the comparison with the Yin and the Yang constitutions (P = 0.017), and the post-hoc analysis showed a strong and significant relation between the Yang constitution and the dopamine type and between the Yin constitution and the GABA type. The one-way analysis of variance (ANOVA) and the independent t-test were conducted to examine the BMI and the degree of obesity among the Sasang constitutions and the Braverman temperament types. Concerning the BMI, Taeeumin showed a bigger BMI than the other constitutions (P < 0.001), but no significant differences in the BMI were observed between the Braverman temperament types. Conclusion: Soyangin has a close relationship to the dopamine type and Taeeumin has a close relationship to the GABA type. The correlation between two types were more clear when the Yin and the Yang types were compared to Braverman temperaments. These results may serve as a basis for identifying the psychological traits of Sasang constitutional types, especially in regard to the characteristics related to the four Braverman temperament types.
Siwoo Lee,Tae-Sik Gong,Yong-Woo Lee,Hyo-Joon Kim,Chang-young Kweon 대한뇌혈관외과학회 2016 Journal of Cerebrovascular and Endovascular Neuros Vol.18 No.3
Objective : Researchers and clinicians have been unable to fully elucidate the natural course of and proper treatment for unruptured intracranial aneurysms (UIAs) smaller than or equal to 5 mm, particularly with regard to whether close observation or surgery is more appropriate. In this retrospective study, we evaluated the safety and efficacy of endovascular coil embolization of small (≤ 5 mm) asymptomatic UIAs by analyzing outcomes and complications associated with the procedure. Materials and Methods : We analyzed data from 150 patients with small asymptomatic UIAs (≤ 5 mm) treated with coil embolization between January 2011 and December 2015. Three-dimensional angiography was used to measure aneurysm size. We evaluated procedure-related morbidity and mortality, immediate post-operative angiographic results, brain computed thomography follow-up results on post-operative day one, and clinical progress. Results : UIAs occurred primarily in the anterior circulation area (142 cases, 94.67%), though eight patients exhibited UIAs of the posterior circulation. Following coil embolization, aneurysms with complete occlusion were observed in 137 cases (91.3%). Partial occlusion occurred in five cases (3.33%), while the procedure had failed in eight cases (5.33%). Procedure-related morbidity and mortality were five cases (3.33%) and zero cases, respectively. Conclusion : The endovascular treatment of small asymptomatic UIAs is associated with good short-term outcomes without permanent neurologic complications as well as low overall complication and morbidity rates. Thus, the procedure should be considered for patients with smaller asymptomatic UIAs.