현장에서 본 학력저하의 원인과 대처 방안

이양남 서원대학교 교육연구소 2001 敎育發展 Vol.20 No.3

교사의 직무 수행 실태의 분석을 통한 사범 교육의 과제

이양남 충북대학교 교육개발연구소 1996 敎育硏究論叢 Vol.16 No.-

사범 교육의 과제

이양남 충북대 사범대부설 교육개발연구소 1996 교육개발연구논총 Vol.16 No.-

콩의 기공확산저항에 미치는 광합성 유효복사와 엽수분포텐샬의 영향

이양수,진용문,임정남 한국토양비료학회 1988 한국토양비료학회 학술발표회 Vol.1988 No.41

2005-2006년 광주 지역에서 소아 Norovirus 장염의 임상적 고찰; Rotavirus 장염과 비교

이양진,유은정,김은영,김용욱,김경심,정성남,유주희,조형민,김선희 대한소아감염학회 2009 Pediatric Infection and Vaccine Vol.16 No.1

Purpose : We evaluated the clinical features of Norovirus gastroenteritis compared with Rotavirus gastroenteritis in hospitalized children. Methods : We detected causative agents in 3,261 samples of children hospitalized with gastroenteritis symptoms at a single center of pediatrics between 2005 and 2006. Among 266 and 303 samples which tested positive for Norovirus and Rotavirus, we selected 73 and 182 samples of children with relatively pure gastroenteritis symptoms and retrospectively analyzed the corresponding medical records. Results : The male-to-female ratio of the Norovirus (+) and Rotavirus (+) groupswas 1.43:1 and 1.56:1 both groups were predominantly in males. The mean age of the Norovirus (+) and Rotavirus (+) groups was 36.7 and 24.4 months, respectively the children in the former group were older than the children in the latter group. The incidence in the Norovirus (+) group was more concentrated in the winter. The symptoms in the Norovirus (+), in decreasing order, included vomiting, diarrhea, and fever. The duration of vomiting, diarrhea, and fever was 2.1, 1.2, and 1.2 days. The maximum number of episodes of vomiting and diarrhea per day was 3.5 and 4.5, respectively. The severity score was 10.16. The symptoms inthe Rotavirus (+) group, in decreasing order, included diarrhea, vomiting, and fever. The duration of diarrhea, vomiting, and fever was 2.2, 4.3, and 2.2 days, respectively. The maximum number of episodes of vomiting and diarrhea per day was 3.3 and 6.5, respectively. The severity score was 11.9. The severity in the Norovirus (+) group was somewhat lower than the Rotavirus (+) group. The younger the child, the more severe the symptoms in the Norovirus (+) group. There was no difference between mono-and co-infection in severity and between the two groups regarding the hematologic findings. Conclusion : Based on the findings reported herein, additional studies about prophylaxis, as well as the epidemiology and clinical features of pediatric Norovirus gastroenteritis, are required. 목 적: 저자들은 입원 중인 환아들을 대상으로 노로바이러 스 장염의 임상 특징을 로타바이러스 장염과 비교하여 조사하였다. 방 법: 2005년부터 2006년까지 한 소아과에 입원 중인, 위장관염 증세를 보여 대변 검사를 시행했던 3,261 검체의 원인체를 검출하였다. 노로바이러스 양성인 266개와 로타바 이러스 양성인 303개의 검체 중, 비교적 순수하게 장염 증세 만 보였던 노로바이러스 감염 73명과 로타바이러스 감염 182 명의 검체를 선별하여 환아들의 임상 기록을 후향적으로 분석 했다. 결 과: 노로바이러스 양성군의 남녀비는 1.43:1, 로타바이 러스 양성군은 1.56:1로 두 군 모두 남아에서 검출률이 높았 다. 평균(중간)연령은 각각 36.7 (22)개월과 24.4 (19)개월로 노로바이러스 양성군의 호발 연령이 더 많았다. 계절적으로 노로바이러스 양성군이 겨울에 국한되어 발생했다. 노로바이 러스 양성군의 임상 증상은 구토, 설사, 발열 순이었고, 평균 구토기간은 2.1일, 설사기간은 1.2일, 발열기간은 1.2일, 하루 최대 구토 횟수는 3.5회, 설사 횟수는 4.5회로 전체적인 Severity score는 10.16점이었으며, 로타바이러스 양성군은 설사, 구토, 발열 순이었고, 평균 설사기간은 4.3일, 구토기간 은 2.2일, 발열기간은 2.2일, 하루 최대 설사 횟수는 6.5회, 하루 최대 구토 횟수는 3.3회로 전체적인 Severity score는 11.9으로 나타나 노로바이러스 양성군이 증상의 중증도가 다 소 낮았다. 노로바이러스 양성군은 어릴수록 증상의 중증도가 심하게 나타났으나, 로타바이러스 양성군은 연령에 따른 중증 도의 차이를 보이지 않았다. 단독감염과 혼합감염의 중증도는 차이를 보이지 않았다. 혈액 검사 상 두 군 간에 유의한 차이는 없었다. 결 론: 소아 노로바이러스 장염의 역학, 임상 증상 뿐만 아니라 예방에 대한 더 많은 연구가 필요하다.

콩군낙(群落)의 열수지특성(熱收支特性)과 건물(乾物)로의 물이용효율(利用效率)

이양수,임정남,Lee, Yang-Soo,Im, Jeong-Nam 한국토양비료학회 1990 한국토양비료학회지 Vol.23 No.2

A field experiment was conducted to study seasonal evapotranspiration above soybean canopy and its relationship with dry matter production by the Bowen ratio-energy balance method. The soybean "Paldalkong" was sown with the space of $47{\times}10cm$ at Suwon on May 27, 1988. The daily net radiation ranged from 59 to 76 percents of the total shortwave radiation under cloudless conditions, which was lower than cloud overcast condition with recorded 63 to 83 percents. The latent heat flux under overcast condition was sometimes larger than the sum of net radiation, implying transportation of energy by advection of ambient air. The linear relationship was obtained between daily or daytime net radiation and evapotranspiration. The evapotranspiration calculated by Bowen ratio-energy balance method was about 150 percent of class A pan evaporation during the growing season. The total solar radiation from June 20 to August 27 was $1043MJm^{-2}$. The 85 percent of the total shortwave radiation was used for evaporative heat. The dry matter production within the period was $836gm^{-2}$ and the water use efficiency was $2.31gDM\;kg^{-1}\;H_2O$. 콩군낙(群落)(팔달(八達)콩 ; 재식밀도(栽植密度) $45{\times}10cm$)에서의 열수지성분(熱收支成分) 변화(變化)를 계절별(季節別)로 관측(觀測)하고 열수지법(熱收支法)으로 증발산량(蒸發散量)을 계산(計算)하여 건물생산량(乾物生産量)과의 관계(關係)를 구한 결과(結果)는 다음과 같다. 1. 맑은날의 전단파복사량(全短波輻射量)에 대한 순복사량(純輻射量)의 비율(比率)은 59~76%로 흐린날의 63~83%보다 낮았다. 2. 순복사량(純輻射量)에 대한 잠열전달량(潛熱傳達量)의 비율(比率)은 흐린날에 100%를 넘는 경우가 있어 때때로 이류(移流)에 의한 열복사(熱輻射)의 수평전도(水平傳導)가 있었다. 3. 1시간(時間)마다 적산(積算)한 일적산순복사량(日積算純輻射量)(Rn)과 증발잠열(蒸發潛熱)($LE_{(+)}$) 및 화간순복사량(畵間純輻射量)($Rn_{(+)}$)과 증발잠열(蒸發潛熱)과의 관계(關係)는 각각(各各) 다음과 같은 직선관계(直線關係)가 성립(成立)하였다. $$LE_{(+)}=0.971\;Rn+1.122\;R^2=0.9017$$ $$LE_{(+)}=0.882\;Rn_{(+)}+1.945\;R^2=0.8836$$ 4. 열수지계산(熱收支計算)에 의한 군낙증발산량(群落蒸發散量)(ETa)과 대형(大型) pan 증발량(蒸發量)(Epan)과의 관계(關係)는 다음과 같았다. ETa = 1.049 Epan + 1.657 $$R^2=0.6589$$ 5. 생육초기(生育初期)를 제외(除外)한 생육기간중(生育期間中) 건물(乾物)로의 물이용효율(利用效率)은 $2.31g{\cdot}DM{\cdot}kg^{-1}\;H_2O$이었으며, 평균일증발산량(平均日蒸發散量)은 5.29mm, 일사량중(日射量中) 군낙(群落)의 증발산(蒸發散)으로 소비(消費)된 열량(熱量)의 비율(比率)은 85%이었다.

보우엔比-에너지收支方法에 의한 옥수수群落 蒸發散의 季節別 觀測

李亮秀(Yang-Soo Lee),任正男(Jeong-Nam Im),康榮熹(Young-Hee Kang) 한국토양비료학회 1988 한국토양비료학회지 Vol.21 No.1

남성·여성의 혼합DNA에서 Y-STR의 유효성 검토

이양한,신상철,이은정,박정우,구형남,김대열,김윤신 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

콩군락의 단파폭사 흡수특성 II. 광합성유효폭사흡수와 건물생산

이양수,윤성호,임정남,박연규 한국작물학회 1990 Korean journal of crop science Vol.35 No.2

A field experiment was conducted to study both the distribution characteristics of photosynthetically active radiation (PAR) in the soybean canopy and their relationships with dry matter production. The soybean cultivars 'Hwanggeumkong' and 'Paldalkong' were sown with the spaces of 60$\times$15cm and 30$\times$15cm at Suwon on May 20 and on June 20 in 1989. The ratio of PAR to the total shortwave radiation was estimated by the empirical equation derived from sunshine hours and direct incoming radiation. The functional relationships between the PAR interception and the leaf area index were expressed as a function of Beer's law. The extinction coefficients(k) in the functions ranged from 0.77 to 0.92. The values of k were greater at higher planting density, but they were affected neither by planting dates nor by varieties. The reflection ratio of PAR($\alpha$) was determined by the exponential function as below; $\alpha$=$\alpha$p-($\alpha$p-$\alpha$o) exp(-kㆍLAI) where $\alpha$p was the reflectance at the maximum LAI and $\alpha$o was that of the bare soil. The ap ranged from 0.025 to 0.035 and $\alpha$o ranged from 0.11 to 0.12, respectively. The reflected PAR ranged from 0.049 to 0.064 and the transmitted PAR ranged from 0.168 to 0.340 until maximum dry weights were observed. The slope from the linear regression of dry matter on absorbed PAR, conversion efficiency, ranged from 1.30 to 2.3g MJ$^{-1}$ during the growing season until maximum dry weight was reached. The total dry matter yield above ground (TDM) increased with the increases in the conversion efficiency. TDM was higher in Hwanggeumkong than Paldalkong and higher in the space of 30$\times$15cm than 60$\times$15cm, Paldalkong showed higher harvest index than Hwanggeumkong. than Hwanggeumkong.

콩군락의 단파폭사 흡수특성I. 전두파폭사수지와 건물생산

이양수,윤성호,임정남 한국작물학회 1990 Korean journal of crop science Vol.35 No.2

콩군락에 흡수된 단파폭사와 건물생산과의 관계를 단경밀식적응품종인 팔달콩을 공시하여 조사한 결과를 요약하면 다음과 같다. 1. 단파폭사의 군락에서의 감쇄계수는 0.53, 총투과된 양은 입사된 단파폭사량의 31.9%이었다. 2. 생육시기별 지하부 건물중과 그 기간에 군락이 흡수한 단파폭사의 적산치는 등숙기인 출현후 88일항까지는 직선적 비례관계가 성립하였고, 건물로의 변환효율인 비례계수는 1.45gMJ$^{-1}$이었다. 3. 생육기간의 전체반사율은 24.7%이었으며 엽면적지수(LAI) 2.5 이상에서는 입사량에서 투과량을 뺀값과 반사폭사량간의 상관도가 높았다. A field experiment was conducted to study both the distribution characteristics of shortwave radiation in the soybean canopy and its relationship with dry matter production. The soybean 'Paldalkong' was sown with the space of 45${\times}$10cm at Suwon on May 27. 1988. The extinction coefficient of solar radiation remained constant (0.53) after full canopy was reached. The 31.9% of the incoming solar radiation was transmitted. The reflected radiation from the plant canopy increased lineary with incoming solar radiation (R$^2$=0.9346). As leaf area index become larger than 2.5. the reflected radiation showed more significant linear relationship with the differences in the radiations between incoming and transmitted radiation than incoming solar radiation (R$^2$=0.9558). The mean reflectance during the growing period was 24.7%. A significant linear relationship (R$^2$=0.9930) had been admitted between the accumulated solar radiation intercepted by the canopy and dry matter production of 'Paldalkong' until the 35th day of ripening stage. The conversion efficiency of solar radiation intercepted to dry matter of soybean was 1.45g MJ$\^$-1/.