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Effect of Transplant and Harvest Time on Grain Quality of Rice in Reclaimed Paddy Field (간척지에서 이앙기 및 수확시기가 쌀의 품질 특성에 미치는 영향)

  • Je-Cheon Chae
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.48 no.6
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    • pp.534-539
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    • 2003
  • The yield and quality characteristics of three rice varieties(Seojinbyeo, Ilpumbyeo, and Chuchungbyeo) in reclaimed saline paddy field were investigated under different cultural practices, three transplanting times (May 15, May 30 and June 15) and four harvest times (40, 50, 60 and 70days after heading) in order to obtain basic information for the production of high quality rice. Brown rice yield of three rice varieties were significantly higher in early and medium than late season cultivation. The protein content of milled rice showed high interaction effect between transplanting time and harvest time. Palatability values of Seojinbyeo and Ilpumbyeo were significantly higher in late than medium season cultivation, but Chucheongbyeo did not show any difference in its palatability value by different transplanting time. The palatability values of three rice variety was the highest in the harvest at 40 days after heading. The grain yield of three rice varieties were higher in early and medium than late season cultivation, whereas palatability values of three rice varieties were significantly higher in the early and late season cultivation than medium season cultivation. The palatability value measured by rice taster showed a highly negative correlation(r=$0.43^{**}$) with cumulative air temperature during ripening period.

출생 및 사망신고체계의 현황과 발전방향

  • Park Jeong-Han
    • 대한예방의학회:학술대회논문집
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    • 2001.04a
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    • pp.50-72
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    • 2001
  • 국민건강 수준과 문제점의 파악, 보건사업의 기획 및 평가를 위해 정확한 출생과 사망에 관한 통계자료가 필수적이다. 그러나 출생신고 이전에 신생아가 사망하는 경우에 대부분 출생과 사망 모두를 신고하지 않아 영아사망률을 비롯한 보건통계를 산출하지 못하여 합리적인 보건사업의 기획 및 평가가 어려우며, OECD 회원국으로서 제시해야 할 기본적인 보건통계를 제시하지 못하고 있다. 또한 현행 출생신고자료에는 신생아와 산모의 건강상태에 관한 자료가 없어 보건서비스제공과 모자보건관련 역학적 연구에 활용 가치가 거의 없다. 지역보건의료정보화, 예방접종기록전산화, 미숙아 및 선천성기형아 등록 등 각종 등록 및 전산화사업이 진행중이나 이러한 사업들이 독립적으로 진행되고 있어 같거나 비슷한 자료의 중복 입력하게 되고, 상호 연계가 되지 않아 자료의 활용성이 낮고, 그 어느 사업도 전체 분모를 파악할 수 없는 단점이 있다. 이러한 문제들은 전산정보체계의 확립으로 해결할 수 있다. 약 99%의 분만이 의료기관에서 일어나고, 정부의 초고속 통신망을 비롯한 의료기관과 보건소의 전산화가 빠르게 진행되고 있어 전산정보체계를 위한 여건이 성숙되고 있다. 분만의료기관이 산모의 거주지 보건소로 직접 출생신고를 하면 보건소는 적기에 산모와 신생아에게 필요한 보건서비스를 제공할 수 있고, 보건소가 읍 면 동사무소로 출생신고 자료를 전송하면 산모는 동사무소에 가지 않고도 출생신고를 할 수 있으며, 보건통계자료수집과 출생신고관리에 필요한 인력과 시간을 절약할 수 있고, 정확한 생정통계를 얻을 수 있고, 예방접종기록과 미숙아 및 선천성기형아 등록은 쉽게 해결되고, 완전한 보건사업대상자의 database를 구축할 수 있어 평생건강관리체계의 기틀을 마련하게 된다. 이러한 전산신고체계를 확립하기 위하여 연자 등은 정부의 연구용역사업으로 전산프로그램과 표준신고양식과 신고체계를 개발하여, 포항과 천안시에서 2000년 3월에서 8월까지 시험 운영하였다. 시험운영결과 출생신고율은 99.9%이었으나 신생아사망의 전산신고율은 11.1%로 낮았다. 그러나 일단 출생신고된 신생아의 사망은 반드시 확인될 수 있는 것이 본 신고체계의 큰 장점이었다. 전산신고의 중요한 장애 요소는 현행법상 의료기관이 출생신고를 직접 할 의무가 없으므로 신고를 강요할 수 없고, 의료기관의 일손 부족으로 출생신고서를 충실하게 기재하지 못하는 것과 의료기관간의 전산화 수준의 차이가 심한 것이었다. 의료기관이 직접 신고를 하도록 하기 위하여 모자보건법 등 관련법 개정이 필요하며, 의료기관의 출생신고자료 송부에 대한 정당한 보상이 있어야 할 것이다. 의료기관 간의 전산화 수준의 차이는 data warehousing과 on-line analytical processing과 같은 기술을 이용하면 해결 가능할 것이다.

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Redescription of Canthocamptus mirabilis Sterba (Copepoda, Harpacticoida), Based on the Topotypic Material from China (중국의 모식산지에서 채집한 갈고리노벌레류 Canthocamptus mirabilis Sterba의 재기재)

  • Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • v.17 no.1
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    • pp.1-11
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    • 2001
  • Conthocamptus mirabilis Sterba is redescribed on the basis of the material newly collected from the type locality near Bekijing, China, with an evaluation of the variability of several characters. C. mirabilis possesses the plesiomorphic characters of the round and narrow hyaline membrane and the unmodified outer terminal furcal setae, while it also bears the apomorphic ones of the male-type caudal rami in females and the modified outer terminal setae of male leg 4 exopod. the peculiar dorsal keel ornamented with spinule array on the female's caudal rami is the most significant feature differentiating this species from its relatives of the mirabilis group, which turned out to be a species group of closely related and largely allopatric or parapatric species. Affinities with the allies of the species group are discussed, and the morphological discrepancies differentiating the Japanese population are enumerated.

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Incidence of Major Diseases on Paeonia lactiflora PALLAS (작약(芍藥)의 주요병해(主要病害) 발생(發生))

  • Park, So-Deuk;Kim, Ki-Jae;You, Oh-Jong;Kim, Se-Jong;Kim, Jae-Chul;Shin, Jong-Hee
    • Korean Journal of Medicinal Crop Science
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    • v.4 no.3
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    • pp.236-240
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    • 1996
  • 1. The pathogenic fungi which infect to shoot of peony was 7 species. The infected parts were as followed, leaf spot disease was in leaf, leaf blotch was stem, powdery mildew was whole aeri­al part of both leaf and stem. 2. The major diseases were leaf spot and powdery mildew, and begin to occur from late April to mid­dle May, and then rapidly heavy infected. The 'Euiseongpeony' variety was more susceptible to those diseases than the 'Yeongcheonpeony' variety. 3. The blight of top part by seasonal in 1995 was begun at late May and increased rapidly 50.6% in Early August.

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Research Strategy on Columnar Joint in South Korea (우리나라 주상절리에 대한 연구 전략)

  • Ahn, Kun Sang
    • Journal of the Korean earth science society
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    • v.35 no.7
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    • pp.501-517
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    • 2014
  • Based on a summary of the previous studies on columnar joints, this study presents research strategies and subjects to understand a formation of columnar joints, and its application in South Korea as follows; geometry of colonnade and entablature, formation mechanism and pattern change, surface morphology and internal structure, platy joint at the top and the bottom of columnar joints, crack patterns in drying starch-water slurries, using numerical models and computer graphics on joint formation, scale and geometry concerned with occurrence of volcanic rock, petrological and mineralogical study of the host rock. Additionally, more research is needed, such as deformation of column pattern during the hot state, secondary landform by alteration and weathering on the Earth's surface such as rock stream, tor and tafoni. This study will take an active role in research of columnar joint and the Cenozoic lava flow of South Korea. Results of this study will be useful to the activation of geotourism and geological field study.

A STUDY ON THE EFFECTS OF CHEWING PATTERNS TO OCCLUSAL CONTACT POINTS AND CHEWING EFFICIENCY (저작 형태가 교합 접촉및 저작 능률에 미치는 영향에 관한 연구)

  • Cho, Li-La;Kim, Kwang-Nam;Chang, Ik-Tae
    • The Journal of Korean Academy of Prosthodontics
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    • v.33 no.2
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    • pp.269-280
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    • 1995
  • 저작은 교합과 악운동 뿐만 아리라 근신경계, 고위 중추까지 복합적으로 관여하는 기능적 행위이다. 교합 양상은 다양하게 저작 형태에 영향을 끼치며 저작 효율에도 관여한다. 저작 형태는 다양한 모양을 가지나 두가지 전형적인 군 즉, 전방에서 관찰시 그 양상이 수직적이며 chopping운동을 닮은 군과 저작 형태가 주로 측방으로 이루어지며 grinding을 하는 군으로 나눌 수 있다. 본 연구의 목적은 저작 형태의 치아가 교합접촉 및 저작 효율에 미치는 영향을 고찰해 보고자 하는 것이다. 하악운동궤적기록기를 이용하여 정상교합을 가진 치과대학생중 전형적인 2가지 저작형태를 보이는 각 10명씩을 피검자로 선택하였다. 3가지 하악위 즉, 중심위, 작업측 비작업측에서의 교합접촉을 고무형 교합인기재로 기록하여 천공부의 직경이 1mm이하면 1점, 1-2mm또는 직선상이면 2점, 2mm이상이면 3점으로 평가하여 각 점수의 합으로 좌우 소구치 및 대구치의 접촉 지수를 측정하였다. 저작 효율을 평가하기 위해 땅콩 3g(${\pm}0.01g$)을 20회 저작하게 한 후 3회 입을 헹구어 뱉게 하였다. 체눈 크기가 각 0.425, 0.60, 0.85, 2.0, 4.0인 체에 거른 후 $65^{\circ}C$로 오븐에서 세시간 말려 무게를 측정하고 중심 크기$(M_{50})$과 저작효율치(R)를 계산 비교하여 다음과 같은 결론을 얻었다. 1. Chopping형은 grinding형에 비해 중심위에서 더 넓은 교합접촉을 보였다(P<0.01). 2. Grinding형은 chopping형에 비해 측방위에서 더 넓은 교합접촉을 보였다(P<0.01). 3. Chopping형은 중심크기($(M_{50})$)과 저작효율치(R)로 비교하였을 때 더 좋은 저작 효율을 보였다(P<0.01).

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A Synecological Description of Ohmi Moor with Sphagnum Islet in Jeju, Korea (물이끼섬을 포함하는 제주도 오미 습원의 군락생태)

  • Kim, Jong-Won;Lee, Gyeong-Yeon;Kim, Yun-Ha;Eom, Byeong-Cheol
    • Korean Journal of Ecology and Environment
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    • v.51 no.2
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    • pp.174-183
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    • 2018
  • In the Sumeunmulbaengdui Wetland Protected Area of Jeju Island, there exists a unique pond, a so-called 'Ohmi', which is likely to be an oasis supporting the wildlife and escaped-livestock. We exquisitely described the diversity and distribution of plant community of the Ohmi. Despite its small area, six syntaxa were identified: Sphagnum community of peat bog type, Nymphoides coreana community of the floating-leaf limnetic vegetation, Scirpus triangulatus community and Schoenoplectus hotarui community of the littoral zone vegetation, and Deinostema violacea-Eleocharis congesta community and Eriocaulon atrum-miquelianum community of the ephemeral vegetation. A zonal distribution of plant communities along the water depth was recognized. The Sphagnum islets regarded as a typical component of peat bog, in Korea were first described at the center of the Ohmi. We conclude that the Ohmi is a primeval keystone habitat of the Sumeunmulbaengdui intermediate moor with a less oligotrophic ombrotrophic environment.

Redescription of Newly Recorded Ciliate, Euplotes muscorum(Ciliophora: Polyhymenophora: Hypotrichida) and Comparison with Related Species from Korea (한국산 미기록 이끼토양자라하모충(섬모충문: 다막충강: 하모충목)의 재기재와 유사종의 비교)

  • Jong O Jo;Mann Kyoon Shin
    • Animal Systematics, Evolution and Diversity
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    • v.19 no.2
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    • pp.227-235
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    • 2003
  • The euplotid hypotrich collected from a puddle, Jeju-do in 2002 and cultured in the laboratory was identified as Euplotes muscorum Dragesco, 1970. The species is reported for the first time from Korea. The description was based on the observation of living specimens, protargol impregnation and biometrical analysis. This species is characterized by following diagnosis: 63-78 ${\mu}m$ in length, 40-52 ${\mu}m$ in width in vivo, 9 frontoventral cirri, 5 transverse cirri,4 caudal cirri, 1 micro- and macronucleus, adoral zone of membranelles with 32-36 adoral membranelles covering approximately 2/3 of body length, 8 dorsal kineties, mid-dorsal kinety with 20-24 cilia 3nd dargyrome complex type. This species with 9 frontoventral cirrotype is very similar to E. muscicola Kahl, 1932. The differences between these two species are: E. muscorum has 8 dorsal kineties and complex dargyrome type, while E. muscicola 9 dorsal kineties and multiple dargyrome type.

Redescription and Multivariate Analysis of Genus Phintella (Araneae, Salticidae) from Korea (한국산 Phintella속(거미목, 깡충거미과)의 재기재와 다변량분석)

  • Bo-Keun Seo
    • Animal Systematics, Evolution and Diversity
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    • v.11 no.2
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    • pp.183-197
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    • 1995
  • Description and identifications of 6 species belonging to genus Phintella from Korea are in insufficient and inaccurate situation. In the present paper, redescriptions illustrations and identification key are provided for 7 species of genus Phintella including P. popovi newly recorded in Korean spider fauna, and Ocius munitus described by Wesolowska (1981s) was synonymized to P.cavaleriei. For the author's identiication and pairing to be valid multivariate analysis was performed with 13 RVCs below STD 0.05 to 134 individuals. The result of discriminant analysis carried out with 13 RVCs of 134 individuals was not satisfactory, but cluster analysis performed with mean ratio values of 14 OTUs to 13 RVCs showed the same result with author's pairing except P.abnormis , which has larger dissimilarity than the pairs of the others. So pairing of 7 species was possible as a whole because one species only failed in pairing , even though this is imperful result. This method to be helpful to pairing test and identification if it were to improve.

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Introduction of Western Biology into Korea, with Special Reference to Animal Systematics (서양 근대 생물학의 국내도입에 관한 연구-동물분류학을 중심으로-)

  • 이병훈;김진태
    • Animal Systematics, Evolution and Diversity
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    • v.10 no.1
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    • pp.85-95
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    • 1994
  • When biology as science was fast developing in the West, Korea remained isolated and stayed with traditional biology. This was only followed by western collectors who brought the specimens with them to their home country, their publications including almost 3,000 species (duplication allowed) during 1843-1924. The Journal of Chosen Natural History Society(1924-1944) published 318 papers by 91 authors wherein animal systematics papers predominated with 224 (70.4%) and basic taxonomy of description , list and faunal studies enumerated 201 among others . Even though the number of Korea authors was limited to only seven as compared to 83 Japanese majority two Koreans ranked third and ifth in number of publication. Those Koreans trained by Japanese scholars as their assistants, however, put the corner stone with several Koreans from Japan, upon which direct introuction of western biology to Korea was made possible after World War II.

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