교잡종 찰옥수수에 대한 연구 III : Ⅲ. 국내 옥수수 유전자원 수집종에 대한 주요 특성 분포

서정은,주현민,최윤표,홍범용,조양희,주정일,지희정,이희봉 충남대학교 농업과학연구소 2007 농업과학연구 Vol.34 No.2

2006년 국내 각 지역으로부터 수집된 재래종옥수수 유전자원을 관행방법에 의해 파종하고 주요특성별로 분포도를 살펴본 결과는 다음과 같다. 1. 수집된 유전자원에 대한 발아율은 대부분 80∼100%이상의 분포를 보였으나, 일부 수집계통에는 30% 미만의 극히 저조한 발아율을 보였다. 2. 수집자원에 대한 초기생육을 살펴보면 극히 생육이 저조한 것이 40% 정도를 보였고, 극히 우수한 자원은 3%미만으로 나타났다. 3. 간장은 대부분이 150∼199cm범위에 55%가 분포하고 있었으나, l00cm이하가 5%, 250cm이상이 8%로 나타나 수집종간에 큰 차이를 보였다. 4. 주당 분얼수는 1개 미만이 40%의 분포를 보였으나, 일부 수집종에서 2 내지 3개의 분얼수를 보이는 계통이 확인되었다. 5. 개화소요일수는 61∼64일의 범위에서 40%, 57∼60일의 범위에서 30%의 분포를 보였으며, 특히 일부 수집종의 경우 55일 이하의 극조생종도 10% 정도의 분포를 보였다. 6. 이삭길이는 대부분 11∼15cm범위에 60%가 포함되어 있으나, 일부계통에서 5cm미만이 2%, 16∼20cm의 이삭길이도 10%가 분포하였다. Germination ratio on the 300 collected genetic resources showed 80 to 100 percentage, but those of some accessions were very low as below 30 percentage. Early growth phase of most of these lines were very poor while some collected lines were very vigor. Range of stem height showed from 150 to 199cm, but that of some accessions showed below 100cm as five percentage and some of them was over 250cm as eight percentage. Number of tillers per plant appeared less one but some collected lines have two to three tillers per plant. In days to tasseling, some accessions showed more four per plant. Ear length of these accession showed above 60 percentage as 11 to 15cm, while that of some collected lines showed over 10 percentage as 16 to 20cm.

만성 부비동염에서 섬모운동과 전산화 단층촬영에서의 상악동 점막비후의 상관관계

민양기,전상준,이재서,이철회,이강수,윤자복,이원진,박광석 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.7

초등 방과후학교 운영 및 방과후학교지원센터에 대한 외부강사의 인식조사

양근숙 ; 서희정 ; 윤명희 동의대학교 인문과학연구소 2011 인간과 문화 연구 Vol.19 No.-

본 연구는 초등 방과후학교에 대한 운영과 방과후학교지원센터의 추진정책에 대한 외부강사의 인식조사를 통해 보다 실증적인 자료를 얻기 위한 목적으로 수행되었다. 이를 위해 부산지역 방과후학교에 참여하는 외부강사 267명을 대상으로 운영실태 및 이에 대한 그들 자신의 평가, 방과후학교지원센터에서 수행하고 있는 외부강사 인력풀 관리, 정책 및 채용에 대한 정보 제공, 연수 등에 대한 인식을 조사하였다. 그 결과 외부강사들은 방과후학교 운영의 목적을 사교육비 절감에 두고 있었다. 학생들의 효율적인 참여를 위해 학년별 정규수업 마치는 시간을 고려한 시간표 구성, 시간당 일정 강의료에 학생 수를 반영한 강사료 책정, 학교차원의 적극적인 홍보를 가장 효과적인 활성화 방안으로 인식하고 있었다. 한편, 이들은 방과후학교 외부강사로 활동 하면서 학생을 가르치는 즐거움을 가장 큰 보람으로 느끼고 있었지만, 동시에 고용의 안정성이 확보되지 못해 불안을 느끼고 있었다. 또한, 방과후학교지원센터에서 운영하는 인력풀에 약 60%가 등록하여 활동하고 있었다. 지원센터의 명강사 또는 우수프로그램 인증을 통해 명강사로서의 자부심뿐 아니라 채용이나 강사료에도 긍정적인 도움을 받을 수 있길 기대하고 있었는데, 인증점수 환산 시 학생관리능력에 대한 배점이 좀 더 강화되어야 한다는 인식을 갖고 있었다. 더불어 방과후학교지원센터에서 주관하고 있는 연수에 각 분야별 전문가 및 현재 활동하고 있는 우수 외부강사가 지도강사로 참여하여 좀 더 현실적인 도움을 제공받길 원하고 있었다. 이러한 외부강사의 인식조사는 방과후학교 활성화를 위한 정책 수립 시 기초자료가 될 수 있을 것이다. 특히, 최근에 설립되어 아직 검증되지 않은 방과후학교지원센터에 대한 외부강사의 인식조사는 보다 체계적인 방과후학교 운영을 위해 구체적인 시사점을 줄 수 있다. The purpose of this study was to investigate instructor’s opinion about management of after-school and supporting centers for after-school, especially for both accreditation systems for best instructor or program and training systems for instructor. This study examined instructor's opinion by their education levels, teaching programs, and job types, which were not regarded by previous studies. The key findings of this study are summarized in the following. First, instructors thought that the main purpose of after-school is to reduce private education expenses. However, because the tuition fee of after-school is getting higher, the government should consider more financial support for after-school. Second, to activate after-school, school needs to advertise actively about instructors and programs. According to instructors’ opinion, the most efficient method of advertisement is using school letters. Also, in order to reduce school teacher's work, school needs to set advertisement systems for after-school. Third, it is needed to strengthen the functions of supporting center for after-school, because instructors get information like program advertisement, employment, or related policies from supporting center's homepage. Forth, training programs for instructors should be held by regular basis. Instructors want that period of training program needs to be held during vacations which instructors have spare time. Also, contents of training programs need to be adjusted practically, so instructors can use in their classes.

제올라이트(NaA형, NaX형)의 이온교환성에 관한 연구

정순희,김복련,금경호,서양곤,안주현 경상대학교 환경보전연구소 2001 環境保全硏究所報 Vol.9 No.-

A study has been made of the exchange of Ag^+, Li^+, and Ba^++, Ca^++, Sr^++ ion by using synthetic zeolite-13X and zeolite-NaA. The zeolite used in this work was supplied as beads by Aldrich Chemical Company, Inc., and the formula of unit cell is M_x/n[AlO₂)_x(SiO₂)_y]zH₂O. X-ray diffraction analysis and Fourier transform infrared spectroscopy indicated that the crystallinity of zeolites was retained though sodium ion in zeolite exchanged with the cation. The amount of ion exchanged was measured by the determining of the amount of cation remained in solution by Inductively coupled plasma, and surface area, adsorption isotherm, Ion exchange kinetics. The selectivity of ions was in the order Ag^+>Li^+>Sr^++>Ca^++>Ba^++.

차세대 전자식 보안등 및 가로등 자동 점멸기 개발

서희돈,박차훈,양승학 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.1

In this paper we describes a next generation electronic security-light and street-light that is controlled remotely by the pager system. Especially, the time in the system is equal to current time. The used protocol is POCSAG(Post Office Code Standardization Advisory Group). Because PSTN is applied practically in the developmented system, we improve a communication quality and minimize to equipment investment. We can minimize the manufacturing cost and the development cost in the manufacturing of light control system.

재발성 류마티즘 환자에서 발작의 유발인자

주유철,이동민,양종태,신병철,임태영,서정균,정기영,최동헌,김원,조영신,고희관 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2

Background and Objectives : Palindromic rheumatism (PR) is known to be triggered without any obviously inciting events in most patients, although, in a few cases, attacks have been noted to relate to another events such as weather change, childbirth, ingestion of certain foods, or over-exercise. The aim of this study was to characterize the triggering factors on palindromic attacks. Materials and Methods : We evaluated sixty-four patients with PR for the presence of triggering factors and the relationship between attacks and triggering factors by interview of patients. We considered that there was an probable association between episodes and PR, if episodes within 24 hours prior to PR had triggered at least 50% of all attacks and a definite association between episodes and PR, if episodes within 24 hours prior to PR had triggered 100% of all attacks. Results : In 15 patients (35.9%), there was a possible association between episodes of PR and initiating events. In 8 patients (12.5%), there was a definite association between episodes of PR and initiating events. The triggering factors were physical over-activity including exercise (19/64: 29.7%), foods, such as rawfish, crab, and chicken, including alcohol (19/96: 19.8%). However, there were no difference between the groups with and without the triggering factor in sex ratio, duration and onset of PR, the positive rate of rheumatoid factor and involved sites. Conclusion : Our observations showed that PR was triggered by physical over-activity more than in previous reports and hypersensitivity to foods was a causative factor in some patients with PR. However, patients with triggering factors had a similiar clinical profile to patients without triggering factors.

扶正益氣方의 抗癌活性과 免疫調節作用에 관한 硏究

具滋權,宋昊哲,金東熙,徐榮培,朴陽春,金聖勳 대한본초학회 2000 大韓本草學會誌 Vol.15 No.1

To evaluate the antitum or activity and immune response Bujungikgibang(BJ1GB) studies were done experimentally. The results were obtained as follows: 1. BJIGB extracts exhibited a weak cytotoxicity against SK-OV-3, and SK-MEL-2 cell lines. While it showed cytotoxicity against B16-Fl0 cell line up to 30% of control at concentration of 0.5 mg/ml. 2. BJIGB extracts significantly showed inhibitoty effect on DNA topoisomerase 1 from calf thymus in a dose-dependant manner. 3. BJIGB extracts showed antiadhesive rates against A549, at 30% at 0.5 mg/ml, 60% at 1 mg/ml 4. BJIGB extracts inhibited CAM angiogenesis up to 60%. 5. BJIGB extracts prolonged life span of ICR mice bearing S-180 sarcoma cells up to 130.5%. 6. In FACS analysis, the population of helper T cell was increased weakly, while cytotoxity T cell was decreased insignificantly. 7. The production of nitric oxide in RAW cell stimulated by LPS was incresed at 0.5mg/ml or more in dose dependant fashion as compared with control. 8. Proliferation rate of splenocyte was increased at 0.5mg/ml or more a dose dependant fashion as compared with control. These results suggested that BJIGB extracts might be usefully applied for treatement of cancer and also it was nesessary to do more studies about its mechnisms.

扶正解毒湯의 抗癌活性과 免疫調節作用에 관한 硏究

朴相采,宋昊哲,金東熙,徐榮培,朴陽春,金聖勳 대한본초학회 2000 大韓本草學會誌 Vol.15 No.1

To evaluate the antitumm activity and immune rsponse of Bujunghoedo!aaCtnng(BJHDn, studies were done experimentally. The rsulLF were OMaineed as fallow: 1. BJHDT e m c b erhibitcd a wmk eytotoxieity against SKOV-3, and SK-MELJ cell lines, while it showed a good effectivaes against BlE-FIO up to 80% of control at concenmion of over 0.25mg/ml 2. BJHDT emcG signifimtly showed an inhibitor, effect on DNA topowmewz I from calf thpw at 500 mglmf. 3. BJHDT eXhaetS showed antiadhesive rates against A549, 30% at 0.5 dm!, 80% at 1 mplm!. 4. BJHDT exmcb inhibited CAM angiogenesis up to 40%. 6. BIHDT extracb prolonged life span of ICR mice bearing S-180 sarcoma cells up to 127.1%. 7. In FACS analysis, the population of helper T cell and tended to increase. 8. Pmliferatbn rate of splenoeyte WBS inneased at 0.5mglml or more in a dase dependent fashim as compared with Control. These resulb suggested that BIHDT exham might k usefully applied for treatment of cancer and also it was necessary m do more studies about its mechanisms.

경구면역을 통한 항원 특이적 IgA 항체 합성에 있어 Cholera Toxin과 Alginate-Microsphere의 효과

송민형,유진수,권명상,성승룡,김용희,권익찬,정서영,양재명,김평현 大韓免疫學會 1996 大韓免疫學會誌 Vol.18 No.3

Secretory (S-IgA) isotype antibody (Ab) is known to play an essential role in the primary defense against various infectious agents in mucosal tissue. However, it has been mostly unsuccessful in the induction of antigen (Ag)-specific IgA Ab response in this site by peroral vaccination. In the present study, we investigated the effect of cholera toxin (CI) as a mucosal adjuvant and alginates-microspheres as a carrier on BSA-specific IgA Ab response in gut-associated lymphoid tissue`(GALT). Peroral immunization of BSA plus CT conferred a great BSA-specific IgA response but IgG response on intestinal fluid (IF). In contrast, intraperitoneal immunization of BSA with Freund's adjuvant readily induced BSA-specific IgG response but IgA response in IF. Further, number of CT specific IgA-secreting cells was substantially increased in mesenteric lymph node when CT-encapsulated-VI alginates-microspheres was administered perorally. Taken together, these results indicate that peroral immunization of soluble antigen in combination of CT or microspheres significantly enhances antigen-specific IgA response in GALT.

Application of MTT Reduction Assay in Evaluate Boar Sperm Viability

Hee Young Lee,Hyun Yong Jang,Seo Hee Ki,In Chul Park,Hee Tae Cheong,Jong Tak Kim,Choon Keun Park,Boo Keun Yang 한국동물번식학회 2010 Reproductive & Developmental Biology(Supplement) Vol.34 No.2s