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.

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.

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

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.

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.

한글 시소러스의 구축 기준에 관한 연구

최석두 문헌정보처리연구회 2002 知識處理硏究 Vol.3 No.1

단일어 시소러스에 대한 대부분의 기본적인 기준은 ISO 2788:1986에서 정의하고 있으나 한글 시소러스라는 측면에서 이 기준을 보면 관계가 없거나 모호할 뿐만 아니라 규정되지 않은 점들을 발견할 수 있다. 왜냐하면 ISO의 기준은 로마자 사용 언어를 중심으로 작성된 것이며, 로마자 사용 언어와 우리말은 문자, 조어법, 맞춤법 및 언어관습에서 크게 다르기 때문이다. 본 연구에서는 한글 시소러스의 측면에서 기존의 기준 및 시소러스의 내용을 분석하여 재고되어야 할 요소를 선정하고 선정된 요소에 대하여 그 범위와 처리방법에 대한 새로운 기준을 설정하거나 기존 기준을 보완하고자 하였다. 또한 제안한 기준안을 준용하여 한글 시소러스를 시험구축함으로써 기준안의 적용가능성을 시험하였다. 한글 시소러스의 시험구축을 위하여 한글 시소러스 관리시스템을 개발하였으며, 가능한 한 여러 분야의 용어를 포함시키려고 노력하였다. 제안내용에 따라 시소러스를 구축해본 결과, 제안한 기준안은 한글 시소러스를 구축하는 데 무리가 없음을 확인하였다. Despite that ISO2788:1986 defines the basic standards for monolingual thesaurus, for the Korean thesaurus construction, many elements remain irrelevant, vague and undetermined. This seems related to the fact that the ISO standards were constructed mainly based on Roman languages, which differ greatly from the Korean language in many aspects, including characters, word formation, correct spelling rules, and linguistic conventions. Through content analysis of the present standards, this study attempts to identify related elements necessary for constructing Korean thesaurus and to modify the existing standards including the scope and development/maintenance procedures about the identified elements. The applicability of the proposed guidelines is tested by a pilot construction of Korean thesaurus. In order to construct a pilot Korean thesaurus, a Korean thesaurus management system was developed and a large amount of terms from various areas were entered. The result of the test suggests that the proposed guidelines have no problem for constructing a Korean thesaurus.