栽培法의 差異가 水稻의 收量 및 米質에 미치는 影響

정원복,김도훈,정대수,김현경 東亞大學校附設 農業生命科學硏究所 1999 農業生命資援硏究 Vol.8 No.1

水稻의 早期栽培에 따른 品種別 栽植距離와 株當苗數가 生育 및 收量에 미치는 影響과 栽培時期에 따른 米質을 변화를 比較코저 小白벼, 農白벼, 福光벼, 道奉벼, 太白벼, 및 伽倻벼를 公試하여 實施한 試驗結果는 다음과 같다. 株當穎花數는 穎植(27×17cm)며 株當 3苗植인 處理區에서 가장 많았고, 10a當 收量은 密植(27×13cm) 및 株當 5∼7苗植인 處理區에서 가장 많았다. 10a當 收量 및 藁重, 穗數間에 有意的인 正의 相關關係가 認定되었다. 또한 Amylose含量은 普通期栽培보다 早期栽培에서 적게 나타났고, 品種間에는 福光벼가 가장 낮았고, Alkali崩壞度는 普通期栽培보다 早期栽培에서 낮았고, 品種間에는 伽倻벼가 높게 나타났다. A study was presented to analyze rice quality and to number of seedlings per hill and their spacing on growth and yield in various varieties of early planted rice; Sobeag, Nongbeag, Dobong, Taebeag and Gaya. There was a higher number of spikelets in wide spacing than in narrow spacing, and the number from from 3 seedlings per hill was greater than the one from 5 or 7 seedlings per hill. In grain yield per 10 areas, there was a higher yield in narrow spacing than in wide spacing, and the on from the block of the 5 or 7 seedlings per hill was greater than the one from the block of 3 seedlings per hill. There was a significant positive correlation among grain yield per 10 areas, straw weigh and the number of panicles. Amylose contents were lower in early planted rice than in ordinarily planted rice. The Boggawng variety showed lowest amylose contents among the varieties used in this experiment. Alkali digestibility values were lower in early planted rice than in ordinarily planted rice. The Gaya variety showed highest alkali digestibility values among the varieties used in this experiment.

Nano-Calcium Ameliorates Ovariectomy-Induced Bone Loss in Female Rats

Hyeon-Son Choi,JeungHi Han,Seungsik Chung1,Yang Hee Hong,and Hyung Joo Suh 한국축산식품학회 2013 한국축산식품학회지 Vol.33 No.4

In this study, we examined the effects of organic types of calcium derived from oyster shell (OS-Ca) and nano-calcium (Nano-Ca) on the bio-availability and physiological responses associated with bone health in ovariectomised rats. Increased body weight, which is one of the physiological effects of ovary removal, was significantly recovered by Nano-Ca treatment (p<0.05). The reduced calcium level in the liver in ovariectomised rat was increased significantly with OS-Ca and Nano-Ca treatment (p<0.05), suggesting improved calcium bio-availability. Alkaline phosphatase (ALP), osteocalcin, and deoxypyridinoline (DPD) were analysed as biochemical markers of bone metabolism and health in the presence or absence of OSCa and Nano-Ca. ALP, osteocalcin, and DPD levels increased following ovary removal and tended to decrease after treatment with Nano-Ca, indicating that Nano-Ca induces favourable bone metabolism. This result was reflected in the recovery of bone mineral density (BMD) and bone mineral content (BMC) of the femur after Nano-Ca treatment following ovary removal. Taken together, our data show that the tested calcium treatments, especially using Nano-Ca, enhanced the bioavailability or absorption of calcium and positively affected bone metabolism in ovariectomised rats.

工團 周邊 農耕地 土壤의 成分 變化에 관한 硏究

鄭大守,金度勳,金賢勍 東亞大學校 1995 東亞論叢 Vol.32 No.-

溫山工業團地 造成에 따른 土壤汚染의 정도를 調査하기 위하여 1988年부터 1994年까지 7년간에 걸쳐 工團 隣近地域의 논과 밭 土壤에 대한 土壤成分의 理化學的인 變化를 調査分析한 結果를 要約하면 다음과 같다. 土壤의 pH 變化는 논과 밭 土壤 모두 每年 pH가 약간씩 減少하여 土壤 酸性化가 深化되어지고 있으며, 一部 地域에서는 pH 5.0 以下의 强酸性을 나타내는 곳도 있었다. 논 土壤의 特性變化에서는 有機物含量과 有效燐酸의 含量은 全國平均보다 낮았으며, Ca++이온과 Mg++이온의 含量은 每年 增加하는 傾向이었다. 밭 土壤의 特性變化에서도 有機物含量과 有效燐酸의 含量은 全國平均보다 낮게 나타났으며, K이온은 全體 平均이 0.85me/100g으로 全國平均 0.5m3/100g보다도 높은 含量을 보였고, Ca++이온과 Mg++이온의 含量은 每年 增加하는 傾向을 나타내었다. A study was carried out to investigate the possibility of soil pollution in Onsan Industrial Complex. Physical and chemical properties of soil were analyzed. Soil samples were collected from paddy and upland soil around the Onsan Industrial Complex between 1988 and 1994. The results were summarized up as follows: Soil acidity of paddy and upland soil was slightly decreased every year respectively. Some sampling area and showed the strong acidity which was less than pH 5.0. For the characteristics of paddy soil, the content organic matter and phosphroic acid were lower than that of Korean average. The content of Mg ++ and Ca++ were increased by degree every year. In the case of upland, the content of organic matter and phosphoric acid showed similar pattern as low as Korean average. The content of K+ was higher as the value of 0.85me/100g comparing with the Korean average, 0.5me/100g. For the Mg++ and Ca++, the contents were also increased by degree every year, respectively.

송과선과 시상하부에서 동시에 발생한 배아종 1예

정재욱,이진호,이수진,하창영,김종수,정윤석,이관우,김현만 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5

서울에 위치한 노래연습장 공기의 미생물학적 오염에 관한 연구

정현희,장윤희 명지대학교 자연과학연구소 2003 자연과학논문집 Vol.22 No.-

노래연습장과 같이 밀폐된 공간은 미생물의 오염을 고려해야 하나 현재 실내 공기는 화학오염 물질에 대해서만 관리되고 있다. 이에 서울 시내 지하 및 시상의 노래연습장 등 총 75 지점에 대한 미생물 오염실태를 조사하였다. 그 결과 세균 및 진균의 총 균수를 비교한 결과 대체로 건물 바깥 공기보다 노래연습장내 공기에서 적은 양이 검출되어 외부 공기보다 과도하게 미생물에 오염되지 않는 것으로 평가되었다. 기회감염균은 노래연습장 내부와 건물 밖 도로변에서 균의 종류와 양이 유사한 것으로 나타나 특별히 노래연습장내에서 감염이 증가할 것으로 사료되지 않는다. Microbial contamination level of indoor facilities such as places for singing (singing places) should be considered but only the chemical pollutants are controlled by regulations. Therefore this study investigated microbial pollution level of 75 places of singing rooms located in either underground or ground level and outdoor air. Singing places had lower cell and mold count than outdoor air and this indicated that singing places were not heavily contaminated with microbial agents. Because similar cell counts and kinds of opportunistic microorganisms were detected from indoor air of singing places and outdoor air, it was considered that infections would not be increased in the indoor environment such as singing places.

목초액의 엽면살포가 선학초(Agrimonia pilosa L.)의 종자수량에 미치는 영향

정대수,신상현,김현경,오주성,이용호 東亞大學校 大學院 2002 大學院論文集 Vol.27 No.-

Agrimonia pilosa L. has been used as a medicinal plant in traditional folk remedy, and it shows inereasing tendency at various sections such as medicine-making material, functional food, and agricultural chemicals using plant or extract. The treatment was 400times solution(50㎖), 600times solution(33.3㎖), 800times solution(25㎖), 1,000times solution(20㎖) and 1,200times solution(16.7㎖) level with foliar application of wood extraction in Agrimonia pilosa L. The results obtained through these experiments were summarized as follows; plant height, stem number, leaves was increased with 800times solution(25㎖) foliar application of wood extraction. Among foliar application of wood vinergar soution diluted by 800-1,200 times was most effective considering growth and yield as compared other dilutions and control plot.

폐경후 여성에서 생화학적 골대사지표 검사의 비교

정윤석,송민경,박덕배,김현만,임영애,곽연식,이득주 대한골대사학회 1995 대한골대사학회지 Vol.2 No.2

향신료의 젖산균에 대한 항균력 비교 연구

정현진,김미경,김미정,김순동 대구효성가톨릭대학교 식품과학연구소 1997 식품과학지 Vol.9 No.-

32종의 향신료를 물, 에탄올, 에틸에테르 및 에틸아세테이트로 추출하여 김치의 주발효균인 L. plantarum과 Leu. mesenteroides에 대한 항균력을 조사하였다. L. plantarum에 대한 항균력은 물 추출물에서는 caraway, cardamon, paprika, tarragon을 제외한 28종에서 항균력이 있었으며, 에틸에테르추출물에서는 arrowroot, paprika 및 tarragon을 제외한 29종이 항균력이 있었다. 에틸아세테이트추출물에서는 paprika 및 tarragon을 제외한 30종이 항균력이 있었으며, 에탄올추출물에서는 clove, paprika와 tarragon을 제외한 29종이 항균력을 나타내었다. Leu. mesenteroides에 대한 항균력은 물추출물에서는 caraway, cardamon, paprika 및 thyme을 제외한 28종에서 항균력을 나타내었으며, 에틸에테르추출물에서는 cardamon, cumin, paprika, tarragon 및 thyme을 제외한 27종이 항균력을 나타내었다. 에틸아세테이트추출물에서는 paprika 및 thyme을 제외한 30종이 항균력이 있었으며, 에탄올추출물에서는 cardamon, cumin, paprika 및 thyme을 제외한 28종이 항균력이 있었으며, 그 중 arrowroot, basil, garlic과 turmeric이 비교적 우수하였다. Leu. mesenteroides에는 항균력이 없으나 L. plantarum에는 높은 항균력을 가지는 것으로는 thyme 물추출물, cardamon, cumin 및 thyme의 에탄올추출물과 에틸에테르추출물, thyme의 에틸아세테이트추출물 등이었다. L. plantarum에 대하여 항균력을 나타내는 thyme 물추출물과 Leu. mesenteroides에 대하여 항균력을 나타내는 tarragon 물추출물을 첨가한 김치의 보존성을 조사한 결과 thyme 물추출물을 첨가한 경우에서 보존성과 품질면에서 양호하였다. 그 중 L. plantarum에 항균력이 있는 thyme 물추출물 첨가한 김치가 보존성 뿐만 아니라 맛에 있어서도 우수한 효과를 나타내었다. Antimirobial activities of 32 kinds of spices extracts on microorganisms related to kimchi fermentation were investigated. 32 kinds of spices such as allspice, arrowroot, basil, bay leaves, caraway, cardamon, celery, chilli powder, chives, cinnamon, clover, coriander, cumin, dill, fennel, garlic, horseradish, marjorarm, mugwort, mustard, nutmeg, onion, oregano, paprika, parsely, pepper, peppermint, rosemary, sage, tarragon, thyme and turmeric were extracted with water and serveral organic solvents such as ethylether, ethylacetate and ethylalcohol. Fractions were tested for antimicrobial activities against L. plantarum and Leu. mesenteroides. The extract of 28 kinds of spices except caraway, cardamon, paprika and tarragon by water extraction, those of 29 kinds except arrowroot, paprika and tarragon by ethylether extraction, those of 30 kinds except paprika and tarragon by ethylacetate extraction, and those of 29 kinds except clover, paprika and tarragon by ethylalcolhol extraction showed stong antimicrobial activities against L. plantarum. On the other hand, the extracts of 28 kinds of spices except caraway, cardamon, paprika and thyme by water extraction and those of 27 kinds except cardamon, cumin, paprika, tarragon and thyme by ethylether extraction, and those of 30 kinds except paprika and thyme by ethylacetate extraction, and those of 28 kinds except cardamon, cumin, paprika and thyme by ethylalcohol extraction showed strong antimicrobial activities against Leu. mesenteroides. Thyme extract by water extraction especially showed strong antimicrobial activities against kimchi microorganisms, finally prolonging shelf-life and enhancing quality of kimchi. The results suggest the possible use of the spices extract as natural preservatives for kimchi.

과학사 교육에 대한 과학교사들의 인식조사

정완호,정현례 한국교원대학교 과학교육연구소 1995 청람과학교육연구논총 Vol.5 No.1

본 연구는 설문을 통하여 과학교사들의 과학사교육에 대한 인식을 조사 분석함으로써 현재의 과학사교육의 실태와 문제점및 개선방안등에 대한 교사들의 견해를 폭넓게 파악하여 중ㆍ고등학교에서의 좀 더 적극적인 과학사교육을 위한 기초자료의 제공에 도움을 주고자 수행하였다. 연구방법에 있어 1) 과학사교육에 대한 관심도, 2) 과학사교육의 기대효과에 대한 인식, 3) 현행 과학사교육에 대한 인식, 4) 과학사교육의 개선방안에 대한 인식의 4가지 영역에 대한 설문지를 만들고 전국적으로 표집한 교사들을 대상으로 설문조사를 실시하였다. 설문에 참여한 총 교사수는 526명이었으며 회수율은 학교별 86.9%, 설문지매수별 82.4%였다. 본 연구에서는 성별, 지역별, 전공과목별, 소지학위별, 경력별, 연령별 등의 다양한 변인별로 비교분석하여 경향성을 파악하였다. 연수결과의 주된 내용은 다음과 같다. 1. 교사들의 과학사교육에 대한 관심도를 보면 상당수의 많은 교사들이 과학교육에 있어 과학사교육이 필요하다고 생각하고 있으며(85.5%), 관심 역시 높은 것으로 나타났다. 그러나 과학사에 대한 공부경험이나, 알고있는 지식정도에 대해서는 부족하다고 응답해 과학사교육에 필요한 소양은 부족하다고 느끼는 것으로 판단된다. 2. 과학사교육의 기대효과에 대한 교사들의 인식은 상당히 긍정적인 것으로 나타났다. 과학사교육은 학생들에게 과학적 개념과 이론의 이해, 탐구력 향상, 과학에 대한 관심과 흥미유발, 과학-기술-사회에 대한 이해, 그리고 과학의 인간화 교육등에 효과적이라는 견해를 보였다. 과학사를 이용한 학습지도 방법은 다양한 방법중의 하나이다. 학습내용과 주제, 그리고 학생의 발달정도에 따라 교사가 적절하게 이용하는 것이 중요하다고 할 것이다. 따라서 과학사교육이 효과적이기 위해서는 교사들의 이에 대한 충분하고 바른 이해가 무엇보다도 요구된다고 하겠다. 3. 현행 과학사 교육에 대하여 대부분의 교사들이 대체로 부족하다고 생각하고 있으며 따라서 좀 더 적극적으로 이루어져야 한다는 견해를 가진 것으로 분석된다. 과학사교육에 대한 관심이 높고, 필요성과 기대효과에 대한 인식도 상당히 높았으나 실제 과학사와 연계시킨 학습지도는 매우 미약한 것으로 나타났다. 그 주된 이유로는 학습지도시 활용할 수 있는 교재나 프로그램등을 구할 수가 없고, 과학사에 대한 지식의 부족함을 들고 있다. 4. 과학사교육의 개선방안에 대한 교사들의 견해를 보면 과학사의 적용 방법으로는 교수자료를 개발하여 필요에 따라 교사가 수업에 이용하는 것이 바람직하다는 의견이(65%) 지배적이다. 한국과학사에 대한 좀 더 비중있는 교육이 이루어져야 하며(94%), 사범대학의 교육과정에 과학사강좌가 필요하다는 것이 대부분 교사들(85%)의 견해이다. 본 연구결과를 종합해 볼 때 과학사교육에 대한 교사들의 인식은 상당히 긍정적이며, 과학사교육이 성공적으로 이루어지기 위해서는 교사들이 과학사교육에 필요한 소양을 얻을 수 있는 기회의 제공과 교수학습자료의 개발보급이 절실히 요구된다 하겠다. 이를 위해서는 교수학습에 적용한 연구사례와 이에 따른 학습모형등의 많은 연구가 뒤따라야 할 것이다. This study is studying and analyzing their appreciation of the education of science history to the science teacher. This study aims to grasp the teachers' broad opinions related to the present condition and problems of the education of science history and provide the basic materals for better education of science history in junior high school and senior high schools. For this study, we made up the questionnaire concerning four appreciation fields-1) Interest on the education of science history; 2) Appreciation of anticipated effects on the education of science history; 3) Appreciation of the present education of science history; 4) Appreciation of the Reforming measures of the education of science history. 526 teachers were sellected on a national scale as subjects of the study for the criterion of teachers officially appinted area. The rate of answer was 86.9% for school, 82.4% for person. In this study, we compared and analyzed by the variables such as sex, local area, major, degree careers, age and so on and took the tendency. The results of this study are as follows. 1. In the view of teachers' interests in the education of science history, many teachers thought the education of science history is needed(85.5%) and also, their interests was shown to be high. They responded to be poor at the experience of studying and knowledge about science history. So is was considered that they were not well grounded in the education of science history 2. Teachers' appreciation of the anticipated effects on the education of science history was shown to be very affirmative. They thought it is efficent to teach student understanding of scientific concepts and theory, improvement of inquiry power, interests in science, and causing interests, understanding of science, Technology and society and the humanizing education of science. 3. It was analyzed that most teachers thought the current education of sicience history is not sufficient and it should be practiced more activity. Their interest in the education of science history was shown to be high and their appreciation of its necessity and anticipated effects was shown to be high but, teaching method corncerned with scince history was shown to be insufficient, As main causes, they can't easily get textbooks or programs which can be applied to the teaching activities and they are poor at the knowledges of science history. 4. According to teachers' opinion on referming measures of the education of science history, it's dominative that teachers using teaching materials which they developed according to the necessity is proper as a method of applying science history. Also it's judged that it should be preceded to develop educational materials in order to practice successful education of science history considering that they responsed most highly to the textbooks or the development of educational materials necessary to the education of science history. They consider that we should give more weight on Korean history of science(94%) and the most teachers thought that it is necessary that science history should be included in the curriculum for students of college of education.(85%). Based on this study, science teachers' appreciation of the education of science history seems to be pretty much affirmative and it's needed to provide the chance of getting more knowledge of the education of science history and develop the educational materials. For these, we should continue to study about the examples apllied to teaching and the learning models following this.

악안면 기형 환자들의 발현 양상, 원인 요소 및 외과적 교정 방법에 관한 역학적연구

현충환,임창준 大韓顎顔面成形再建外科學會 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.3

Recently the goal of orthognathic surgery has been focused on esthetic improvement of the patients. Also early corrective surgery was favorable selected by most of the oral and maxillofacial surgeons. We should consider the etiologic factor of the patient's dentofacial deformities when treatment is planned, because this is the major factor in estimating the predictability or stability of result. The more researches were carried on the etiologic factors of the dentofacical deformities, The more possibility of the early surgical correction will be increased. The authors analyzed about etiologic factors and epidemiologic studies of the forth patients who had received the orthognathic surgery. The analyzed results were as follows: 1. The predilection ration between male and female was 17:23, and 32 patients (80%) of 40 patients were aged twenties. 2. 26patients(65%) complained estetic problems as well as functional problems. 10 patients(25%) complained only esthetic problems, and 4 of 40 patients complained only functional problems. 3. Mandibular prognathism was found to be done most frequently(25, 39%). Facial asymmetry (13, 20%) and angle hypertrophy were found to be next in sequence. 4. Sagittal split ramus ostetomy was done most frequently(27, 35%). Lefort I osteotomy(13, 17%), angle reduction (12,16%), and genioplasty(11, 15%) were done also. 5. The number of the cases due to nonspecific etiologic factor was 22(55%), that of cases due to inhertied tendency was 12(30%), that of cases due to congenital anomaly was 3(7.5%), and that of cases due to trauma was 3(7.5%). 6. The number of patients who got only maxilliary surgery was 2(5%), that of patients who got only mandibular surgery was 23(57.5%), and that of patients who got simultaneous two jaw surgery was 15(37.5%).