포유중인 Rat 의 Progesterone 분비에 대한 포유 효과

오석두,성환후,민관식,윤창현 한국동물생명공학회(구 한국동물번식학회) 1999 Reproductive & developmental biology Vol.23 No.2

학술발표회 : 번식 ( 구두발표 ) ; 비유중인 Rat 의 포유자극이 혈중 progesterone 농도에 미치는 영향

오석두,이병오,윤창현,성환후,오성종,양보석,정진관 한국동물자원과학회 ( 구 한국축산학회 ) 1994 한국축산학회 심포지움자료집 Vol.- No.-

Rat의 포유조절에 따른 난소와 유선의 조직학적 성상

오석두,윤창현 진주산업대학교 농업기술연구소 2000 農業技術硏究所報 Vol.13 No.-

This experiment was conducted to investigate how the lactation regulation such as restricted-lactation, early weaning during the suckling period influences on ovarian functions in primiparous rats, on the bases of change in histological characteristics of ovary and mammary gland. 1. The ovaries of rats in middle lactation stage maintained the functional corpora lutea full of cytoplasm, and those of rats in late lactation stage contained matured ovarian follicles. 2. The milk was found full in the mammary gland tissue of NL rats, but short in the tissue of RL rats, and all the alveolar tissues were degraded in mammary gland of weaned rats. The alveoli structures of mammary gland of NL rats were uniformed on Day 10, but such uniformity was lost greatly on Day 20.

Rat 의 포유조절이 혈중 Insulin-like Growth Factor- I 수준에 미치는 영향

오석두,성환후,민관식,윤창현 한국동물번식학회 2000 Reproductive & developmental biology Vol.24 No.1

This experiment was conducted to investigate how restricted-lactation and regulation of weaning-time influence the levels of insulin-like growth factor-I (IGF-I) in primiparous rats during the suckling period. All the rats were raised in the individual cage from a few days before parturition through the whole suckling period. The restrictedlactation (RL) and weaned (W) groups were subdivided into 5 subgroups as RL0, RL5, RL10, RL15 and RL20 as well as W0, W5, Wl0, W15, and W20 according to the day of onset of suckling only 4 pups in restriction lactation and of suckling no pups in weaned group, respectively, in contrast to suckling 8 pups per litter in normal lactation (NL) group. The results obtained were summarized as follows: 1. The serum IGF- I concentration of NL rats was 750.59$\pm$3.52ng/$m\ell$ on Day 0, which was not changed until Day 15, and then it was increased through the subsequent suckling period to 1690.20$\pm$4.42ng/$m\ell$ on Day 25. 2. The IGF-I concentrations of early restricted lactation (RL0, RL5) were 1395.90$\pm$3.45ng/$m\ell$ and 1351$\pm$3.23ng/$m\ell$ on Day 10, respeotively. It was significantly higher (P<0.05) than NL group (745.96$\pm$2.24ng/$m\ell$), and then was not different between group from day 15 of lactation. 3. The IGF- I concentration of W-group in the early lactation was higher (P<0.05) than NL group during the first week of lactation. But it was decreased to the similar concentration as NL group on Day 10. These data show that lactation stimulus may regulate the IGF-I concentration.

片側卵巢剔出이 흰쥐의 發情週期, 卵巢·胎盤·胎兒 重量 및 産仔數에 미치는 影響

吳錫斗,閔觀植,尹昌鉉 한국동물생명공학회(구 한국동물번식학회) 1990 Reproductive & developmental biology Vol.14 No.4

흰쥐의 交配 前後 片側卵巢剔出이 産仔의 發育에 미치는 影響

吳錫斗 진주산업대학교 농업기술연구소 1991 農業技術硏究所報 Vol.4 No.-

生後 8∼10週齡, 體重 220∼250g의 Wistar系 암흰쥐를 使用하여 交配 前, 交配 後 5, 10, 15일에 各各 片側卵巢를 剔出하여 産仔數, 姙娠期間, 分娩時부터 分娩後 15일까지의 産仔重量을 調査한 結果는 다음과 같다. 1. 産仔數는 10.3±0.6∼13.3±0.5마리로서 對照區와 實驗區에서 有意性이 인정되지 않았다. 2. 姙娠期間은 22일 前後로 對照區와 實驗區에서 差異가 없었다. 3. 産仔重量은 交配 前 剔出區와 對照區에서 무겁게 나타났고, 交配 後 15日의 片側卵巢剔出區가 가장 가볍게 나타나 交配 後 片側卵巢剔出 時期가 늦어질수록 産仔의 發育狀態가 떨어지는 傾向이었다. The 8-10-week-old white female Wistar rats of the weight between 220g to 250g were used for this thesis. Their unilateral ovariectomy was carried out at four times-before mating and 5, 10, 15 days after mating. Their litter size, pregnancy period and the litter weight of the period between parturition and 15 days after parturition were examined. And the results are as follows : 1. The litter size ranged between 10.3±0.6 and 13.3±0.5 heads. That of the experimental group was not significantly different from that of the control group 2. The pregnancy period was around 22 days. That did not show any significant difference between the experimental group and control group, either. 3. The litter weight was heavier in the before mating group and the control group than the others. It was lightest in the 15-days-after-mating group. The later the unilateral ovariectomy was done after mating, the worse the litter growth tended to become.

중국의 지역패권화 가능성과 한계 - 남중국해 분쟁사례를 중심으로 -

석두식 ( Seok¸ Doo-sik ) 한국군사학회 2020 군사논단 Vol.104 No.-

The purpose of this research is to analyze the possibility of Chinese regional hegemony and its restraints in the East Asia. China’s movement for its hegemony has restrains such as development, integration, and regime issues, and issues of development are closely related to the later two as regional unbalancing as the example. South China Sea disputes in 2015 and 2020 share the same fact that the claims of the United States and China confront; international water and exercise of sovereignty, however, the distinctive point is given by the increasing intensity of disputes and it would likely to be extended as the competition for hegemony. Considering China’s movements in its national development strategy, hegemonic approaches, and augmentation of military power, Chinese intention to achieve maritime and regional hegemony in the East Asia becomes much specific. However, China’s vulnerability of growth power comparing to capabilities of the United States, regime instability due to issues of human rights and ethnic groups, and antipathies of surrounding states against Chinese pursuit of national interests provide limitations for China to achieve the regional hegemony in a near future. Rule of power and mobilization of military strength of China shown in disputes of South China Sea are also being presented on the Korean peninsula. Along with diplomatic efforts, an increase of naval capability against illegal entries of China. A realistic reasoning on requests for cooperation and support to the United States and China must be carefully considered, and mitigate risks by reducing the dependency on trades with China.

입점 상가 및 주변 지역 특성을 고려한 권리금 결정 연구

석두성(Suk, Du Sung),박진호(Park, Jin Ho),최열(Choi, Yeol) 한국부동산학회 2018 不動産學報 Vol.74 No.-

1. CONTENTS (1) RESEARCH OBJECTIVES The purpose of this research is to identify the factors that influence the goodwill premium price of commercial units which is newly defined in 2015 through empirical analysis. Ultimately, the study characterizes the estimation process of goodwill premium, in detail, which will be more actively dealt in real estate transactions in near future. (2) RESEARCH METHOD The study not only analyses the individual unit but also accounts for the regional characteristics of each unit. By doing so, the study intends to acquire more comprehensive approach than the standardized and simplified approach that have been used previously, in understanding the mechanism. The study employes OLS regression model to analyse the mechanism as well as to interpret the causality of the influences on the magnitude of goodwill premium in commercial unit transactions. The empirical analysis is composed of the goodwill premium of commercial units dealt in 2015 in Busan metropolitan area as the dependent variable, and sets of store, commercial building, and surrounding area factors as the independent variable. (3) RESEARCH FINDINGS As a results of empirical analysis through OLS regression model, deposit, store size, restaurant, building floors and land price, floating population and household of surrounding area were statistically significant. Among significant variables, deposit, restaurant, building floors, land price, and floating population had a positive effect to goodwill premium. 2. RESULTS It is expected that the findings can be used in a wide range of appraisal processes and litigations involving real estate transactions of commercial units which is very likely to grow hereafter. In particular, it will help to determine whether the goodwill premium is properly set. It will also help to set the goodwill premium adequately. 본 연구는 기존의 불명확한 권리금 산정에서 탈피하여 점포가 입점한 상가의 특성과 그 주변 지역의 특성을 종합적 으로 고려한 권리금 결정요인을 실증분석하는 것으로 목적으로 하였다. 그리고 상대적으로 지방 지역을 대상으로 한 권리금 연구가 부족하였다는 점에서 본 연구는 부산을 대상으로 분석을 실시하였다. OLS 회귀모형을 통한 실증분석 결과, 점포의 환산보증금, 면적, 요식업 여부, 점포가 입점한 상가의 층수와 공시지가, 입점 상가 주변 지역의 유동인구와 가구수가 통계적으로 유의한 것으로 추정되었다. 구체적으로 환산보증금, 요식업 여부, 입점 상가의 층수, 입점 상가 주변의 유동인구는 권리금에 정(+)의 효과가 있는 것으로 도출되었고, 점포 면적, 입점 상가의 공시지가, 입점 상가 주변의 가구는 권리금에 부(-)의 효과가 있는 것으로 도출되었다. 본 연구는 결과는 향후 점포에 대한 권리금 산정과 책정된 권리금이 적정한지 판단하는데 있어 도움이 될 것으로 사료된다.

Mouse의 血液像에 관한 硏究 : Rompun投與가 鎭靜狀態 및 血液像에 미치는 影響 Effect of the administration of rompun on the sedation and the hematological values

吳錫斗,姜奉泰,李乙熙 진주산업대학교 1986 論文集 Vol.24 No.-

晋州農林專門大學 附屬動物飼育場에서 飼育中인 Mouse를 공시하여 Rompun 投與前 血液像을 調査하여 處理前의 實驗値를 算定했고 處理區는 0.1, 0.2 및 0.3mg/kg 投與群으로 나누어 投與後 鎭靜狀態는 經時的으로 調査했고 血液像은 1, 2, 3 및 4時間에 調査하였던 바 다음과 같은 結果를 얻었다. 1. 鎭靜導入時間은 0.1mg/kg, 0.2mg/kg 및 0.3mg/kg 投與區에서 각각 20分, 14分, 7.5分이었고 鎭靜待續時間은 0.5時間, 1時間, 2時間이었다. 2. 血球容積, 血色素含量, 赤血球數 및 白血球總數는 鎭靜期에 다소 감소하는 경향을 보였다. 3. 平均赤血球容積은 鎭靜期에 0.1mg/kg投與區는 감소했고, 0.2mg/kg 및 0.3mg/kg投與區는 증가하였다. 4. 血淸總蛋白含量은 投與後 4時間까지 감소하였다. The effects of Rompun on the sedation and the hematological values of the mouse were studied. 3 Levels of Rompun were treated: 0.1, 0.2 and 0.3 mg/kg of body weight of the mouse. The changes of sedation of the mouse were observed with the passage of time and the hematological values were estimated 4 times(1, 2, 3 and 4 hrs after administration). The results are summarized as follows: 1. Times required to reach the sedation state were 20, 14 and 7.5 min. at the level of 0.1, 0.2 and 0.3mg/kg of body weight and the sedation times taken were 0.5, 1 and 2 hours, respectively. 2. Packed cell volume, hemoglobin concentration, erythrocyte counts and leucocyte counts were decreased during sedative periods. 3. Mean corpuscular volume were decreased at the level of 0.1mg/kg during the sedative time, whereas increased at the level of 0.2mg/kg and 0.3mg/kg. 4. Plasma protein contents were decreased continuously up to 4 hours after administration.

전자도서의 출판과 유통방안

최석두 문헌정보처리연구회 2001 知識處理硏究 Vol.2 No.1

인터넷과 디지털 정보기술의 발전으로 전자도서의 시장점유율이 높아지고 있으며, 이 추세는 계속될 것으로 보인다. 아직 기존의 종이책과 비교하면 장단점을 가지고 있으나 단점이 줄어들고 있으며 장점이 단점을 보완하고 있다. 도서관은 디지털도서관이라는 이름 하에 全文데이터서비스의 제공을 목표로 하고 있다. 전자도서와 도서관의 서비스 방향이 일치함으로써 전자도서의 출판을 가속화하고 있다. 그러나 아직 전자도서가 도서관의 상품으로 완전히 정착되지는 못하고 있다. 따라서 본고에서는 다음과 같은 관점에서 출판과 유통방안에 대하여 논하였다. 우선, 전통적인 의미에서의 "책다운" 전자도서를 바탕으로 정보기술을 적용시켜야 한다. 둘째, 판매계약은 카피단위(동시이용자수)와 일정 기간단위로 하여야 한다. 셋째, 이용은 도서의 대출의 개념을 도입하여 일정기간 동안의 독점권을 부여하여야 한다. 넷째, 중개자 시스템을 두어야 한다. 이와 같은 출판과 유통원칙 하에 중개시스템이 그 역할을 충실히 해낸다면 전자도서 출판업계와 도서관은 호혜적인 관계를 유지할 수 있을 것이다. Due to the rapid spread of internet and development of digital information technology, the e-book's market share has been on the increase. Although the issues of standardization, mark-up language, file type, codes, security, interoperability etc. need to be solved, this trends will be continued. To promote the circulation of e-books between e-book vendors and libraries, this study mainly suggested the following four strategies: First, e-books should be "book-like". Second, contract for supply should be based on per copy (the number of concurrent users) and a fixed time period. Third, e-book users (borrowers) should be given an exclusive right to use for due date as paper book circulation. Fourth, there should be an intermediary system.