Evaluation of High Power Light Emitting Diodes (HPLEDs) as Potential Attractants for Adult Spodoptera exigua (Hubner) (Lepidoptera Noctuidae)

( Min Seok Oh ),( Chi Hoon Lee ),( Sang Guei Lee ),( Hoi Seon Lee ) 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.3

To evaluate high-power light-emitting diodes (HPLEDs) as potential attractants for Spodoptera exigua adults, attractiveness of specific wavelengths, illuminance intensity, and light-exposure times were investigated and compared to that of fluorescent light. The white light (40 lux treatment) attracted significantly more S. exigua than other attractants. The optimal light-exposure time, based on the highest attraction rate, was 60 min. Evaluation of attraction and repellent rates under optimal conditions showed the white HPLED had the highest attraction rate (91.1%), and the red HPLED had the highest repellence rate (33.3%). Based on relative efficiency values, the white HPLED was about 9.14 times as efficient as the fluorescent light. These data clearly showed that S. exigua showed the greatest attraction to the white HPLED at 40 lux intensity and 60 min light-exposure time.

Evaluation of High Power Light Emitting Diodes (HPLEDs) as Potential Attractants for Adult Spodoptera exigua (Hübner)

Min-Seok Oh,Sang-Guei Lee,Ju-Hyun Jeon,Hoi-Seon Lee 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.10

To response evaluation of high power light emitting diodes (HPLEDs) as potential attractants to the Spodoptera exigua adults, we investigated the attractiveness of specific wavelength, illuminance intensity and light-exposure time, and compared them to the fluorescent. The all light treatments with the 40 lux intensity attracted the significantly highest number of S. exigua. The optimal light-exposure time exhibited the highest attraction rate at the 60 min. When the attraction and repellent rate in the optimal conditions to the S. exigua was surveyed, the white HPLED exhibited the highest attraction rate (91.1%), whereas the red HPLED exhibited the most repellent rate (33.3%). When evatuated of illuminance efficiency with fluorescent as control, white and red HPLED were found to be 9.14 and 10.34 times more efficient than fluorescent. These data clearly show that both the 40 lux intensity and the 60 min light-exposure time by using the white HPLED was the most suitable for attraction of the S. exigua.

Simultaneous Gas Chromatography-Mass Spectrometric Determination of Total and Individual Phthalic Esters Utilizing Alkaline Hydrolysis and Silyl Derivatization Technique

Kim, Min-Seon,Li, Dong-Hao,Shim, Won-Joon,Oh, Jae-Ryoung,Park, Jong-Man Korean Chemical Society 2007 Bulletin of the Korean Chemical Society Vol.28 No.3

Environmentally important phthalic esters have been analyzed by GC-MS in terms of individual phthalic esters or total phthalic esters directly or after derivatization. Derivatization improves the chromatographic characteristics of the highly polar phthalic esters. This study focused on the GC-MS determination of the total phthalic esters and the individual phthalic esters simultaneously. The phthalic esters were hydrolyzed to phthalate and corresponding alcohols in 1 M NaOH solution at 90 oC for 30 min followed by extraction with ethyl acetate after acidifcation. The phthalic acid and alcohols were simultaneously silyl derivatized using bis(trimethylsilyl)trifluoroacetamide (BSTFA) to their corresponding silyl ester and ethers in the mixture of 60% acetone and 40% ethyl acetate at room temperature within 30 min. Because of the high reactivity of BSTFA with the phthalic acid and alcohols effective silyl derivatization was possible simultaneously. GC-MS analysis of the silyl derivatives of phthalic acid and alcohols was performed. The total phthalic ester content was estimated from the analytical result of phthalic silyl ester, while the individual phthalic ester was quantified from the analytical results of alcoholic silyl ethers. This technique was applied to spiked tab water and real seawater samples from the Lake Shihwa in Korea. The results were checked against the results from the direct GC-MS analysis of the phthalic esters and reasonable recoveries with high sensitivity were achieved. The recoveries were higher than 75% with low relative standard deviation (below 10%).

The Korean Association of lnternal Medicine : Poster Session ; PS 1357 : Nephrology ; Age is the Strongest Effector for the Relationship between Estimated Glomerular filtration Rate and Coronary Artery Calcifi cation in Apparently Healthy Korean Adults

( Hyun Beom Chae ),( Eun Jung Rhee ),( Hae Jung Park ),( Min Kyung Lee ),( Won Seon Jeon ),( Se Eun Park ),( Cheol Young Park ),( Won Young Lee ),( Ki Won Oh ),( Sung Woo Park ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: Cardiovascular disease (CVD) is a major clinical problem and the most common cause of morbidity and mortality in patients with chronic kidney disease (CKD). Coronary artery calcifi cation (CAC) is a potential mechanism that explains the association between renal function and cardiovascular mortality. We aimed to evaluate the association between renal function and CAC in apparently healthy Korean subjects. Methods: In 23,617 participants in the health screening program in Kangbuk Samsung Hospital health screening program from January 2010 to December 2011, estimated glomerular fi ltration rate (eGFR) was assessed by Cockcroft-Gault equation. Coronary artery calcium score (CACS) was measured by multi-detector computed tomography (MDCT). Subjects were divided into 3 groups according to the CKD Staging system with eGFR grade; stage 1: eGFR = 90 mL/min/1.73 m2, stage 2: eGFR 60-89 mL/ min/1.73 m2, stage 3: eGFR 30-59 mL/min/1.73 m2. Results: Mean age of the participants was 41.4 years, and mean eGFR was 103.6±21.7 mL/min/1.73 m2. Hypertension and diabetes were noted in 43.7% and 5.5% of the participants, respectively. eGFR showed weakly negative but signifi cant association with CACS in bivariate correlation analysis (r=-0.076, p<0.01). Mean CACS signifi cantly increased from CKD stage 1 to 3. The proportion of subjects who had CAC signifi cantly increased from CKD stage 1 to 3. Although odds ratio for CAC signifi cantly increased from stage 1 to 3 after adjustment for confounding factors, this signifi cance was inversed when age was included in the model. Age was the strongest factor that affects CAC. Conclusions: This study performed in young Korean subjects with relatively normal renal function, age was the mostly strongest effector on the association between eGFR and the degree of CAC.

겨울철 홍천강의 위생학적 수질조사연구

오덕철,김선균,주왕기,조동현,김우호,윤경민 江原大學校附設體力硏究所 1976 江原大學校附設體育科學硏究所論文集 Vol.- No.1

The water quality of the Hong-Cheon river was investigated during the winter season. The rate of contamination of the low tide was a little more than the high tide. But all values of the analyzed-items were similar to those in the clear water.

흰쥐 심장혈관계통에서 3β-hydroxysteroid dehydrogenase/△⁵-△⁴ isomerase의 분포에 관한 연구

오선희,오재민,백용아,박옥규,정연태 대한해부학회 1988 Anatomy & Cell Biology Vol.31 No.3

발바닥 특정 부위 자극이 뇌파에 미치는 효과에 대한 비선형 분석

吳永仙,吳旼錫,宋泰元 대전대학교 한의학연구소 2001 한의학연구소 논문집 Vol.10 No.1

The brain is one of the most complex systems in nature. Brain waves, or the "EEG", are electrical signals that can be recorded from the brain, either directly or throught the scalp. The kind of brain wave recorded depends on the behavior of the animal, and is the visible evidence of the kind of neuronal (brain cell) processing necessary for that behavior. But, EEG had been considered as a virtually infinite-dimensional random signal. However, nonlinear dynamics light on dynamical aspects of the human EEG. The methods of nonlinear dynamics provide excellent tolls for the study of multi-variable, complex system such as EEG. In this study, 20 persons seperated in 2 groups were examined with EGG, one group stimulated on specific area of the sole of the foot with footbed inside the shoes. This experiment resulted in at the group stimulated on specific area of the sole of the fott correlation dimension of P4 and Ol channels increased significantly. Therefore, we obserbed that stimulation on specific area of the body had a constant effections on the specific channels.

MMSE를 이용한 도시지역 노인들의 인지기능검사 성적

오민아,신윤오,이태용,김정선 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

This study was performed to assess the degree of cognitive function impairment by MMSE performances and the effects. Data was collected by interviewers from 1,325 elderly people in Seogu, Daejeon city from June to July, 2002 and the collected data were analysed by SPSSWIN(ver 10.0). The results of analysis were as follows. The mean score of MMSE was 24.16±4.36 and significantly lower in female, in the older group and in the non-educated group. The subset score of MMSE were significantly lower in female group about each items: orientation in time and place, registration, attention/calculation, language except recall. And the scores were significantly lower in the older group and non-educated group about the all items of MMSE. In conclusion, sex, age and education showed significant effects on total and subset MMSE score. Cognitive function decline were higher in female sex, older age group and non-educated group. Therefore, those three factor are thought to be one of important risk factors for development of dementia because MMSE examination is useful instrument for evaluation of elderly dementia.

급성 백혈병 환자에서 발생한 감염 양상의 분석(1986~1992)

박선양,오명돈,김양수,백경란,김병국,최강원,김성민 대한감염학회 1993 감염 Vol.25 No.3

Infection is a major complication and potentially life-threatening in patients with acute leukemia. The patients require prompt broad-spectrum antibiotics therapy when fever develops. One of the keys to successful patient management is the recognition of institutional trends of the spectrum of infections and infecting microorganisms. So we evaluated 138 patients with acute leukemia and blastic crisis of chronic myelogenous leukemia admitted to Seoul National University Hospital from July 1986 to June 1992. The results are following: 1) Total number of febrile episodes was 224 and 60% of them occurred after chemotherapy. 2) Microbiologically-defined infection, clinically-defined infection, and unexplained fever accounted for 28%, 45%, 27% of the febrile episodes respectively. 3) Fifty-eight percent of microbiologically-defined infections were caused by gram-negative bactria, and 36% were gram-positive bacteria. There was a tendency to a greater proportion of gram (+) organisms than that of the last study (p>0.1). Escherichia coli was the most common organism, and coagulase-negative staphylococci, Pseudomonas aeruginosa, Klebsiella pneumoniae were common in decreasing order. 4) Pneumonia was the most common type of infection, followed by skin and soft tissue infection, perianal infection, gingivitis and primary septicemia. 5) Seventy-two percent of total infections improved with therapy and this success rate was higher than that of the last study(p<0.001).

하수에서 분리한 합성세제 분해균의 특성

정민선,전진경,정영건,이해경,권오진,지원대,김관배 嶺南大學校 環境問題硏究所 1993 環境硏究 Vol.13 No.1

대구시와 경산시의 하수에서 음이온계 합성세제인 sodium dodecyl sulfate(SDS)와 sodium dodecylbenzene sulfonate(SDBS)를 유일한 탄소원으로 이용하는 균주 289종을 분리하고 이중 합성세제 분해력이 강한, 그람음성 간균으로 운동성인 8균주를 선정하여 그 선정균들의 특성을 조사하였다. 선정균은 40℃ 이상에서는 생육하지 못하였으며 생육 최적 pH는 균주간에 다소 차이가 있었으며 pH 4.0 이하에서는 선정균 모두 생육치 못하였다. 질소원으로는 SDS분해균의 생육에는 potassium nitrate가, SDBS 분해균의 생육에는 soytone이 좋았다. SDS 분해균인 DS-3, 6, 8, 24 및 SDBS 분해균인 BS-7, 8은 세제농도가 5.0% 이상에서도 생육이 가능하였다. 선정균들은 tetracycline에 감수성이 강한 것으로 나타났지만 penicillin에는 강한 내성을 띠는 것으로 나타났고, ??와 ??금속이온은 모든 선정균들의 생육을 억제하는 것으로 나타났다. On purpose to isolate the organisms, which would utilize detergents(sodium dodecyl sulfate, SDS and sodium dodecylbenzene sulfonate, SDBS) as a sole carbon source, from the waste water of Kyungsan and Taegu city 289 strains were isolated. Among them 8 strains, which are gram negative rods with motility and produce strong enzyme to biodegrade the synthetic detergents, were selected. The characteristics of them were investigated as follows, 8 strains were failed to grow above the temperature of 40℃ and below the pH 4.0 even though they have variable optimum pH. Potassium nitrate was very effective for the growth of SDS-biodegradable strains and soytone was effective for the growth of SDBS-biodegradable strains as a sole nitrogen source. Among 8 strains especially DS-3, DS-6, DS-8 and DS-24(SDS-biodegradation strains) and BS-7 and BS-8(SDBS-biodegradation strains) could grow above 5.0% of detergent concentration. All of 8 strains were very sensitive to tetracycline but resistant to penicillin. Selected 8 strains were inhibited by metal ions of ??(0.156mg/㎖) and ??(0.156mg/㎖).