홍수퇴적토의 식재토양 재활용 연구

조용현,조항문,현재혁,조재범,김갑수 忠南大學校 環境問題硏究所 1997 環境硏究 Vol.15 No.-

In the study , the feasibility of deposit soil in river and stream bed as a substitute for conventional plant soil was investigated through the analysis of soil characteristics and germination growth rate for 75days. Proper mix between samples from different places was compared to optimize the germination and growth rate of plant in the ratio of 2 : 1 and 3 : 1 (sand : deposit). From the results, it could be concluded that the deposit mix 3 : 1 showed most favorable germination and growth conditions for pancy and the deposit containing enough amount of silt and clay components showed most favorable conditions for marigold. Consequently, the feasibility of deposits as a substitutional plant soil was evaluated to be high.

야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

양전자방출단층촬영을 이용한 초점주의와 작동기억의 뇌 활성화 양상 비교

김재진,조상수,김명선,손정우,이재성,이동수,이명철,권준수 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.2

연구목적: 단순 초점주의 과제와 보다 고도의 집중을 요하는 작동기억 과제를 수행하는 동안의 뇌 활성화 양상을 비교하여, 두 인지기능 과정을 매개하는 정상적 신경회로의 특성과 차이를 알아보는 것을 목적으로 하였다. 방법: 정상인 14명을 대상으로 시각처리 대조 과제, 단순 초점주의 과제, 작동기억 과제 등 세 가지 인지과제를 주고, 과제 수행 동안 [□O]H₂O를 추적자로 한 양전자방출단층활영을 실시한 후 감산분석을 통해 초점주의와 작동기억의 신경회로 지도를 작성하여 비교분석하였다. 결과: 초점주의 동안 활성화되는 부위는 좌측으로 편측화되고 산발적으로 분포하는 양상이었고, 특히 전대상이랑과 운동영역을 포함한 전두엽, 일차 및 이차 시각피질 등의 활성화가 특징적이었다. 작동기억 동안의 뇌 활성화 역시 산발적 분포와 좌측 편측화 양상이 관찰되었으나, 시각피질보다는 전두엽의 활성화가 우세하였고, 특히 우측 전대상이랑의 현저한 활성화가 특징적이었다. 결론: 초점주의와 작동기억은 개념적으로 공통점과 차이점을 내포하고 있는 것처럼 매개 신경회로에서도 공통 혹은 특이한 영역을 각각 가지며, 전대상이랑의 역할이 두 기능에 공통적으로 중요하고, 이차 시각피질과 전전두피질이 두 기능 각각에 더 중요하게 작용하는 것 같다. Objectives:This study was undertaken to identify neural substrates for simple focused attention and more highly-focused working memory i normal people and investigate their characteristics and differences. Method: Fourteen normal subjects were studied with [□O]H₂O positron emission tomography during a visual processing baseline task, simple focused attention task and working memory task. Results were analyzed with the subtraction analysis to map the neural correlates of focused attention and working memory. Results: Activated areas during focused attention tended to be lateralized to the left and scattered over various regions including the anterior cingulate, motor area, and primary and secondary visual cortices. While the areas activated during working memory also show the left lateralization and scattered distribution, activation prevailed more in the frontal lobe than in the visual cortex, and was particularly remarkable in the right anterior cingulate. Conclusions: Focused attention and working memory do not have only conceptually commonalities and differences but also have common and specific areas in their neural substrates. The anterior cingulate may commonly play an important role in both cognitive functions, whereas secondary visual cortex and prefrontal cortex seem to be predominantly implicated in each function, respectively.

白鼠의 無機質代謝에 미치는 칼슘과 마그네슘의 影響 : 2. Effect on the sodium, potassium, copper and iron metabolism in tissues 2. 組織 중의 Na, K, Cu 및 Fe 代謝에 미치는 影響

曺秀悅,鄭在洪 嶺南大學校 環境問題硏究所 1982 環境硏究 Vol.2 No.1

This experiment was undertaken to investigate the effect of the diet containing two levels of calcium(0.5%, 0.1%) and magnesium (0.04%, 0.0002%) on the sodium, potassium, copper and iron concentrations of kidney, liver and femur in rats. Thirty-two males of Sprague-Dewley strain, 70-80g, were divided into 4 groups and each group(8 rats)was fed ad libitum for 4 weeks. sodium and potassium in the liver, kidney and femur were determined by flame spectrophotometry. Copper and iron in liver, kidney and femur were determined by atomic absorption spetrophotometry. The results obtained are summarized as follow. Net weight gain and feed efficiency ratio were decreased in the calcium and magnesium-deficient groups. The weight of liver, heart and kidney generally showed increasing tendency in the calcium-deficiency group. The weight of iung was showed to decreased in the magnesium-deficient group compared to the control group. The sodium and potassium concentrations of liver, kidney, and femur are the dietary calcium and magnesium levels did not tend to affect on the sodium concentration of kidney and potassium concentration fo femur and liver. But sodium content of liver tended to be significantly increased in the magnesium deficient-group. The potassium concentration of kidney in the deficient-groups(II,III,IV) tended to be greatly increased as compared with the control group. The sodium concentration of femur in the deficient-groups(II, III, IV) was slightly lower as comapared with that of the control group. Both copper and iron contents of the kidney, liver, and femur were the highest in kidney and the dietary Ca and Mg levels were not effected on the copper content of liver. The iron concentration of liver in the Ca-deficient group tended to be greatly higher than that of the other groups. The copper contents of kidney in the Mg-deficient group was lower than that of the other groups, and the iron contents in the deficient groups(II, III, IV) lower as compared with the control group. The copper content of the femur tended to be lower at the deficient levels(II, III, IV) and the copper concentration at the Mg-deficient level was greatly increased as compared with that of the control group.

전방 또는 전측방 흉수 종양 수술에서 후측방도달법

조경석,박춘근,성재훈,허필우,박춘근,백민우,김달수,강준기 대한신경외과학회 1997 Journal of Korean neurosurgical society Vol.26 No.5

배드민턴 선수들의 정신력 특성 분석

조용찬,이동수,이재형 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The purpose of this study was to investigate the mental toughness of Badminton players and suggest way of performance enhancement using Loehr's AET(Athletic Excellent Training) program. Subjects of this study were sampled 243 the badminton players (133 male, 110 female) by the random sampling method. The method of statistics used to analysis the collected data are mean, standard deviation, two-way ANOVA. Based on the procedures and results, the following conclusions were warranted ; 1. Arousal control. Attention control were significant between high school and major badminton players. Major badminton players showed lower score than that college badminton players(p<.05). 2. Positive energy were significant difference a statistics of sex. 3. In general Self-confidence, Arousal control, Attention control level. which are important factors of badminton players. were lower then the norm of AET. 4. Imagery, motivation level. Attitude control level of high school groups showed lower score. 5. Self-confidence, Arousal control, Attention control level, motivation level, Positive energy factors of showed lower score, Imagery, Attitude control level factors of showed higher score.

볼텍스 크러셔를 이용한 순환골재 생산기술의 개발에 관한 연구

정재동,조현대,김보수 대구대학교 특수교육재활과학연구소 2010 産業技術硏究 Vol.21 No.1

To assess the performance of the vortex crusher equipment developed for this study, the results of comparative tests for physical features of the recycled aggregate in production at present and that produced passing through this development device showed the improvement of removal efficiency of cement paste by 4.5%, and the recycled aggregate output suitable for the particle size standard for road work by Ministry of Land Transportation and Maritime Affairs by 80%, absolute dryness density from 2.25g/cm3 to 2.34g/cm3, and wear reduction amount from 32% to 22%, and stability from 10% to 3%, result ratio of particle shape decision by 7% compared to existing one.

요로감염의 원인균과 항생제에 대한 고찰

조기창 ; 류재기 ; 장철수 김천대학교 2007 김천대학교 논문집 Vol.28 No.-

In order to provide useful information on the choice of adequate drugs in the treatment of urinary tract infections (UTI), this paper analyzed the causative organisms of urinary tract infection and studied their changes in antibiotic sensi- tivity from the year of 2000 to 2004 for five years. 5,452 uropathogens and their antimicrobial sensitivity were analyzed from 4,815 inpatients and outpatients, all of whom had causative organisms more than 105 CFU/ml in their urine cultures. As a result of the study, the incidence of UTI increased.with age and was highest in patients who were in their 70s (21.3%). The incidence of Gram negative organ- isms that were measured through Gram stain decreased from 74.2% in 2000 to 58.7% in 2004, whereas Gram positive organisms increased from 25.8% in 2000 to 41.3% in 2004. The major Gram negative and positive pathogens were Escherichia coli (29.0%), Enterococcus (15.9%), Klebsiella (9.4%), and Escherichia coli was the most importanat pathogen of UTI during the research period. In terms of a test conducted on antibiotic sensitivity to Gram negative organisms, the susceptibility of amikacin, an aminoglycoside, increased from 78.2% in 2000 to 82.3% in 2004, and that of trimethoprim-sulfamethoxazole decreased from 66.2% in 2001 to 60.6% in 2004. As for antibiotic sensitivity to Gram positive organisms, the susceptibility of clindamycin increased from 46.2% in 2000 to 68.2% in 2004. However, the antibiotic susceptibility of trimethoprim-sulfamethoxazolen decreased from 90.7% in 2001 to 76.8% in 2004. As for Escherichia coli, the main causal microorganisms of urinary tract infection, the antibiotic sensitivity of cefa- zolin decreased from 88.3% in 2002 to 83.0% in 2004; as for Klebsiella, the sen- sitivity of amikacin decreased from 93.1% in 2000 to73.7% in 2004; and as for the trimethoprim-sulfamethoxazole, the antibiotic sensitivity of Staphylococcus aureus decreased from 100% in 2001 to 86.7% in 2004. In conclusion, the study confirms that it is possible to use cephalosporins and aminoglycosides as initial experiential antibiotics for urinary tract infection, and suggests that trimethoprim-sulfamethoxazole, traditionally used as primary treat- ment for urinary tract infection, should be used more carefully to treat urinary tract infection accurately.

움직이는 목표물 추적을 위한 강인한 블록 정합 추적기

조재수 한국기술교육대학교 2005 論文集 Vol.11 No.1

In this paper, a robust block matching criterion to track a moving object through a series of images is proposed. A correlation-tracking algorithm seeks to align the incoming target image with a reference image of the target, but has critical problems, so called false-peak problem and drift phenomenon(correlator walk-off.) The false-peak problem is generally caused by highly correlated background pixels with similar intensity of moving target and the drift phenomenon occurs when tracking errors accumulate from frame to frame because of the nature of the correlation process. This paper suggests a robust correlation measure with a gradient preprocessor combined by a drift removal compensator to overcome the walk-off problem. The drift compensator adaptively controls the template size according to the target size of interest. The robustness of the proposed method for practical application is demonstrated by simulating two sequences of real target images.

Original Articles : Clinical significance of occult hepatitis B virus infection in chronic hepatitis C patients

( Jae Young Jang ),( Soung Won Jeong ),( Sung Ran Cheon1 ),( Sae Hwan Lee1 ),( Sang Gyune Kim ),( Young Koog Cheon ),( Young Seok Kim1 ),( Young Deok Cho1 ),( Hong Soo Kim ),( So Young Jin ),( Yun Soo 대한간학회 2011 Clinical and Molecular Hepatology(대한간학회지) Vol.17 No.3

Background/Aims: We investigated the frequency of occult hepatitis B virus (HBV) infection in anti-hepatitis C virus (HCV)-positive individuals and the effects of occult HBV infection on the severity of liver disease. Methods: Seventy-one hepatitis B virus surface-antigen (HBsAg)-negative patients were divided according to their HBV serological status into groups A (anti-HBc positive, anti-HBs negative; n=18), B (anti-HBc positive, anti-HBs positive; n=34), and C (anti-HBc negative, anti-HBs positive/negative; n=19), and by anti-HCV positivity (anti-HCV positive; n=32 vs. anti-HCV negative; n=39). Liver biopsy samples were taken, and HBV DNA was quantified by real-time PCR. Results: Intrahepatic HBV DNA was detected in 32.4% (23/71) of the entire cohort, and HBV DNA levels were invariably low in the different groups. Occult HBV infection was detected more frequently in the anti-HBc-positive patients. Intrahepatic HBV DNA was detected in 28.1% (9/32) of the anti-HCV-positive and 35.9% (14/39) of the anti-HCV-negative subjects. The HCV genotype did not affect the detection rate of intrahepatic HBV DNA. In anti-HCV-positive cases, occult HBV infection did not affect liver disease severity. Conclusions: Low levels of intrahepatic HBV DNA were detected frequently in both HBsAg-negative and anti-HCV-positive cases. However, the frequency of occult HBV infection was not affected by the presence of hepatitis C, and occult HBV infection did not have a significant effect on the disease severity of hepatitis C. (Korean J Hepatol 2011;17:206-212)