개간지(開墾地) 피복작물(被覆作物)로서의 "칡"증산(增産)을 위(爲)한 기초연구(基礎硏究)

조재성,김영래,김충수,Jo, Jae Seong,Kim, Young Rae,Kim, Choong Soo 충남대학교 농업과학연구소 1975 Korean Journal of Agricultural Science Vol.2 No.1

칡의 육종(育種)을 위(爲)한 기초청보(基礎情報)를 얻고져 충남(忠南)을 위주(爲主)로 4개지역(個地域)에서 42개(個)의 형태적(形態的) 특성(特性)을 달리하는 개체를 선발(選拔)하여 그 특성(特性)을 조사분석(調査分析)하고 형질상호간(形質相互間)의 관계(關係)를 구(求)하여 다음과 같은 결과(結果)를 얻었다. (1) 칡의 잎은 형태별(形態別)로 편원형(扁圓形), 마름모형(形), 천열각형(淺裂刻形) 및 심열각형(深裂刻形)으로 분류(分類)되었으며 엽면적(葉面積)은 30cm에서 220cm까지 분포(分布)되었고 분포(分布)의 형태(形態)로 보아 5계단(階段)로 분류(分類)된다. (2) 엽병장(葉柄長)은 5~45cm 사이에 분포(分布)되어 있었는데 잎의 열각(裂刻)과는 관계(關係)가 없었고 절간장(節間長)과는 오히려 -0.1759의 상관(相關)을 보였으나 엽면적(葉面積)과는 고도(高度)의 유의상관(有意相關)을 나타내었다. (3) 절간장(節間長)은 13cm에서 37cm사이의 분포(分布)를 보이고 있었던 바 절간장(節間長)은 잎의 열각(裂刻)이나 엽면적(葉面積)과는 유의상관(有意相關)을 보이지 않았으며 경태(莖太)와는 보통정도(普通程度)의 정(正)(+)의 상관(相關)을 나타내었다. (4) 경태(莖太)는 3.0~3.5mm가 가장 높은 출현빈도(出顯頻度)를 보였는데 경태(莖太)는 잎의 열각(裂刻)과는 유의상관(有意相關)이 인정(認定)되지 않았으나 엽면적(葉面積)과는 5% 수준(水準)에서 유의상관(有意相關)을 보이고 있다. To obtain some basic informations on the breeding of Kudzu, 42 individuals were selected and their morphological characteristics were investigated and analyzed. The shape of leaves was classified as 4 types and area of leaves into 5 steps. Internode length was distributed between 13 cm and 37 cm. Significant correlations were recognized between petiole and leaf area, between internode length and internode diameter and between internods diameter and leaf area.

임신중기 양수천자 2,000 예에 대한 임상 및 세포유전학적 연구

조재성(Jae Sung Cho),박용원(Yong Won Park),김세광(Sei Kwang Kim),김인규(In Kyu Kim),양영호(Young Ho Yang),권혜경(Hye Kyung Kwon),이윤호(Yoon Ho Lee) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.1

N/A Objective: To systematic analyze the change of indications, age distribution of the patients and chromosomal results according to patient's age and indications in midtrimester genetic amniocentesis Methods: This study reviewed 2,000 genetic amniocentesis cases from 1984 to 1997 which were done at Severance Hospital, after prenatal genetic counseling for the mothers who have high risk for carrying chromosomally abnormal babies. We analized the change of the indication, age distribution and chromosomal results according to maternal age and indications of amniocentesis Results: 1. The incidence of amniocentesis had been in gradual increase since the 1980's, and from the mid 1990's it showed an abrupt increment. 2. Of the 2,000 amniocentesis cases, 31.8% was maternal age 35 to 39 which was most common age group and followed by age 30 to 34 was 28.4% and age 25 to 29 was 27.4. 3. The indications for amniocentesis were advanced maternal age(39.6%), abnormal maternal serum markers(27.8%) and abnormal ultrasonographic findings which implies chromosomal abnormality(6.4%). Recently maternal serum markers and ultrasonography play an important role as an indicator for the amniocentesis. 4. From the 2000cases, 1,950 cases showed normal diploidy and 50 cases abnormal karyotype which consisted 2.5%. In autosomal disorders ll Down syndrome, 7 Edward syndrome, 1 Patau syndrome, 15 Translocation, 3 Mosaicism were diagnosed. In sex chromosomal disorders 3 Klinefelter syndmme, 2 Turner syndrome and other 8 chromosomal abnormalities were diagnosed. No statistic significance was found among different age groups. Those who had abnormal ultrasonographic findings implying chromosomal abnormality were found to have correlation with chromosomal abnormality than other indications Conclusion: Midtrimester genetic amniocentesis is an important diagnostic tool in prenatal diagnosis, of which the annual incidence has been recently increased abruptly. Not only maternal age, but the maternal serum markers and ultrasonograms should be considered in prenatal counseling, The genetic amniocentesis should be well informed to the general population.

손실지출변경을 활용한 가축방역 사업의 재정효율성 분석

조재성 ( Jaesung Cho ),김용렬 ( Yonglyoul Kim ),김현중 ( Hyunjoong Kim ) 한국축산경영학회,농업정책학회(구 한국축산경영학회) 2020 농업경영정책연구 Vol.47 No.4

Infectious diseases in livestock cause serious problems not only in the livestock industry but also in many socio-economic aspects. Therefore, the Korean government allocates a significant amount of its budget to the national livestock health management policy annually. However, the effectiveness of the policy on the economic side has not yet been evaluated. Therefore, this study investigated the cost-effectiveness of the policy by using the loss-expenditure frontier method. The results show that from 2002 to 2018, the average efficiency of the policy was 0.716, with the maximum possible efficiency of 1. However, the median efficiency is low at 0.484, and the standard deviation is high at 0.28. This implies that the policy should be improved to equalize and increase its efficiency.

융모막의 형태가 쌍태아의 성장 불일치에 미치는 영향

조재성(Jae Sung Cho),김재욱(Jae Wook Kim),김세광(Sei Kwang Kim),김석영(Suk Young Kim),김인규(In Kyu Kim) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.3

N/A Objective: The purpose of this study was to evaluate the clinical course of discordant fetal growth and perinatal outcome in relation to dichorionic and monochorionic twin for different degrees of birth weight difference. Methods: Between Jan. 1992 and Dec, 1997, 154 twin pairs were born at Yonsei medical center and there were 36 pairs of twins which had 20% or more birth weight difference. The placental examination were performed routinely on all multiple births and 13 pairs of dichorionic twins and 23 pairs of monochorionic twins were consisted of the study population. These twin pairs were divided into three groups based on birth weight difference: 20-29%(as group A), 30-39%(as group B), and 40% or more(as group C). Gestational age, birth weight, gender and perinatal outcomes were observed for each twin pairs. Results: The perinatal death in the monochorionic twin pairs showed 9(34.6%) as group A, 4(50%) as group B, and 5(41,7%) as group C and in the dichorionic twin paus 1(10.0%) as youp A, 0 as group B and 5(62.5%) as group C. Up to 40% of birth weight difference, dichorionic twin pairs showed good perinatal outcomes compared with monochorionic twin pairs but over 40% or more of birth weight diffaence, however there were no significant difference of perinatal outcomes by chorionicity. In the monochorionic twin pairs, the cause of perinatal death showed 3 cases of prematurity, 2 cases of congenital anomalies and 2 cases of IIOC and 2 cases of cord lesions in group A whenas in the group B and C 3 cases of prematurity and 6 cases of congenital anomalies. In the dichorionic twin pairs, different-sex twin pairs showed no perinatal death in all three groups but in same-sex twin pairs there were 6 perinatal deaths. Conclusion: More recent improved fetal ultrasonographic surveillance such as determination of chorionicity, identification of fetal sex and evaluation of fetal anomalies help to make a clinical decision in growth discordant twin up to 40% of weight difference each other.

반려동물 관련 산업 규모 추정 및 전망

조재성 ( Jaesung Cho ),서강철 ( Gangcheol Seo ),김현중 ( Hyunjoong Kim ),김원태 ( Wontae Kim ),지인배 ( Inbae Ji ) 한국농업정책학회 2018 농업경영정책연구 Vol.45 No.3

In Korea, the number of companion animals, especially dogs and cats, is rapidly increasing mainly due to the increase in the number of nuclear families and single-person households. Nevertheless, only one study has explored the future market size of pet related industries by applying compound annual growth rate to the market size in 2012. The objectives of this study are to update the information on the market size of pet related industries and to estimate the potential market size in the future using a bass diffusion model. The results of this study indicated that a total of 9.32~9.97 million dogs and cats was estimated to live in Korean households as pets in 2018. This number will increase to 11.55~16.49 million in 2027. The market size of pet related industries in Korea was estimated to 1,544 billion KRW in 2018 and 3,498 billion KRW in 2027.

開墾地 被覆作物로서의 “칡”增產을 爲한 基礎硏究

曺在星(Jo Jae Seong),金暎來(Kim Young Rae),金忠洙(Kim Choong Soo) 충남대학교 농업과학연구소 1975 農業技術硏究報告 Vol.2 No.1

가축분뇨처리지원사업의 가축분뇨 자원화 효과 분석

조재성(Jaesung Cho),박성진(Seongjin Park),김태후(Taehoo Kim),이형용(Hyungyong Lee),김현중(Hyunjoong Kim) 한국농식품정책학회 2019 농업경영정책연구 Vol.46 No.3

This study measures the fertilizer value of livestock manure and analyzes the impact of livestock manure management policy on the utilization of livestock manure as a resource. Fertilizer value of livestock manure was estimated using the amount of fertilizer components contained in livestock manure and the price of chemical fertilizer. The effect of the policy on the utilization of livestock manure was estimated using the seemingly unrelated regression technique and the system of linear equations representing the relations between livestock manure utilization and the government financial support(subsidy and loan). The result indicated that the average fertilizer value of livestock manure is about KRW 405 billion per year over the last five years (2013-2017). The increase in the financial support by KRW 100 million increased the amount of livestock manure utilized as a resource by 5,884 tons.

태아 복부 고형 종양 (solid tumor)의 영상 진단

김의혁 ( Kim Ui Hyeog ),안은희 ( An Eun Hui ),임종철 ( Im Jong Cheol ),노진래 ( No Jin Lae ),조재성 ( Jo Jae Seong ),박용원 ( Park Yong Won ),김명준 ( Kim Myeong Jun ) 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.5

목적 : 태아 질환의 산전 진찰에 있어 초음파검사가 중요한 역할을 해 왔으며, 또한 태아 종양 진단에 있어서도 초음파 검사가 핵심적이라고 할 수 있다. 최근 자기 공명 영상 진단 (MRI)이 태아 질환의 진단에 응용되는 바, 태아 복부 고형 종양 진단에 있어 초음파 검사와 자기 공명 영상 진단의 유용성을 평가하고자 한다. 연구 방법 : 1996년 1월부터 2002년 6월까지 산전 진찰을 위해 연세의대 세브란스병원 산부인과에 내원하여 산전 초음파 검사를 시행한 산모 중 초음파 검사에서 태아 이상 소견이 발견되었던 2,055예 중 태아의 복부에 고형 종양이 있었던 총 4예에서 산전 초음파 검사, 태아 자기 공명 영상 진단, 출생 후 신생아의 영상 진단 및 조직 검사의 경과와 비교하였다. 결과 : 첫 번째 예에서는 초음파 검사상 부신 종양 혹은 간 종양, 자기 공명 영상 진단상 간의 혈관 내피 종양으로 진단 받고 출생 후 혈관 내피 종양으로 확진되었다. 두 번째 예에서는 초음파 검사 태아 자기 공명 영상 진단 및 출생 후 조직 검사 모두에서 중배엽성 신종양으로 일치하였다. 세 번째 예에서는 초음파 검사 및 자기 공명 영상 진단상 흉곽 외 폐 분리증으로 진단되었으며 출생 후 검사 소견도 동일하였다. 네 번째 예에서는 초음파 검사에서 신장 종양을 의심하였으나, 수술 후 부신의 신경아세포종으로 진단되었다. 결론 : 태아 종양은 매우 드문 질환이지만, 종양의 위치와 크기 그리고 기원에 따라 신생아 시기 예후에 중요하므로 태아 자기 공명 영상 진단 법을 추가로 시행하는 것이 진단의 향상을 기대할 수 있는 것으로 사료된다. Objective : Ultrasonography is screening modality of choice and plays an important role in prenatal diagnosis of various diseases and neoplasm of fetus. Recently, Magnetic Resonance Imaging was used as a diagnosis tool to fetal disease. We would like to evaluate efficacy of ultrasonography and magnetic resonance imaging for the diagnosis of fetal abdominal solid tumor. Methods : Among 2,055 cases of abnormal ultrasonography findings detected by prenatal ultrasonography from January 1996 and June 2002, a comparison between the diagnosis made by prenatal ultrasonography, fetal magnetic resonance imaging (MRI), postnatal radiological studies and histopathologic studies was made in four cases with fetal abdominal solid tumor. Results : The first case was diagnosed as adrenal tumor or hepatic tumor by US, hemangioedothelioma of liver by fetal MRI, and confirmed as hemangioedothelioma postnatally. The second case showed concordance with mesoblastic nephroma among the diagnosis made by US, fetal MRI, and postnatal histopathologic studies. The third case was diagnosed as extrathoracic pulmonary sequestration by US and MRI, and the same diagnosis was made by postnatal histopathologic studies. The fourth case was suspected as kidney tumor by US and was diagnosed as adrenal as adrenal neuroblastoma postoperatively. Conclusion : Fetal solid tumor is not a common disorder, but the location, size and orgin of tumor plays important role in the prognosis of neonatal period; additional workup by fetal MRI would improve the diagnosis of such tumors.

인천 지역 남자 노인들의 주요 혈관질환들의 유병률과 그 특성에 관한 연구

김장용(Jang Yong Kim),전용선(Yong Sun Jeon),조순구(Soon Gu Cho),공은미(Eunmi Kong),정지은(Ji-eun Jung),박신구(Shin Goo Park),조재성(Jae-Sung Cho),김경래(Kyung Rae Kim),신석환(Seok-Hwan Shin),안승익(Seung-Ik Ahn),조영업(Young Up Cho) 대한외과학회 2010 Annals of Surgical Treatment and Research(ASRT) Vol.78 No.5

Purpose: As Korea is an aging society (WHO classification) and projected to be an aged society in 10 years, peripheral vascular diseases (PVD) in the elderly population has emerged as an important social and medical issue. But their prevalence was rarely reported in Korea. The purpose of this study is to define the prevalence of carotid artery stenosis (CAS), abdominal aortic aneurysm (AAA), and peripheral arterial occlusive disease (PAOD) of lower limb in the Incheon area. Methods: Elderly men (≥65 years) were referred randomly from the Incheon Federation of Korean Senior Citizens’ Association (from Nov 2008 to Sep 2009) to Inha Univeristy Hospital, Incheon, Korea for a PVD screening program. The subjects were screened for CAS and AAA by duplex. CAS was defined as ≥50% internal CAS and AAA as ≥3 ㎝ aortic diameter in minor axis. PAOD of lower limb was screened by measurement of ankle brachial index (ABI); ABI of ≤0.9 was considered abnormal. Results: 1150 subjects were screened including 103 octogenarians (9.0%). Mean age was 72.3±0.2 years. Combined conditions were hypertension (54.3%), diabetes mellitus (25.2%), coronary artery disease (15.6%), dyslipidemia (18.9%), obesity (31.1%) and smoking history (71.7%). CAS was detected in 7.7% (89/1,150) subjects. Thirty-three (2.9%) were diagnosed with AAA. PAOD was detected in 50 subjects (4.4%). Conclusion: Prevalence of PVD in Korea is not lower compared to that of western countries, especially the USA and the UK. A nationwide program for timely detection and treatment for PVD should be developed.

중기 임신중단에 있어서 산과적 원인에 대한 연구

김석영 ( Suk Young Kim ),김인규 ( In Kyu Kim ),이국 ( Kook Lee ),박용원 ( Yong Won Park ),조재성 ( Jae Sung Cho ),김재욱 ( Jae Wook Kim ) 대한산부인과학회 1997 Obstetrics & Gynecology Science Vol.40 No.12

Objectives; To analyze the clinical causative factors of fetal wastage in the second trimester at Inchon Severance Hospital and to identify the changing pattern of them last 14 years. Methods; During the 14 years(l983-1996) there were 6080 total births with 101 fetal losses comprising 72 stillbirths, 27 termination of pregnancy and 2 neonatal death. The classification of this research was based on a modified Aberdeen classification(Baird & Thomson, 1969) and additional small modification revised by Whitefield(l986). The results of the survey were divided into two periods: namely first 9 years(l983~1991) and later 5 years(l992-1996) to compare the changing patterns of causes. Results; The most common causes of fetal losses in later 5 years were fetal abnormalities(23 losses: 37.1 %). On the other hands, unexplained intrauterine fetal death(17 losses: 43.6 %) in first 9 years. The next most frequent cause was spontaneous preterm labor(22 losses: 23.2 %), followed by maternal disease(10 losses: 10.5 %), hypertension(6 losses: 6.3 %), antepartum hemorrhage(5 losses: 3.1 %), trauma(2 losses: 2.1 %) and intrauterine growth retardation(2 losses: 2.1 %). Losses associated with unexplained intrauterine fetal death tend to decrease in the later 5 years. The most common predisposing factors of spontaneous preterm was the cervical incompetence. Conclusions; With the recent advanced methods for early prenatal diagnosis such as ultrasound, the fetal abnormalities seemed to be one of the commonest causes of fetal wastage. The cervical incompetence causing predisposing factor of spontaneous preterm were increasing and seemed to be the effects of the voluntary abortion for family planning. Although unexplained intrauterine fetal death decline in later 5 years, it has to be investigated these losses through postmortem examination or screening marker at risk of women.