• 제목/요약/키워드: Korean researches

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유채 품질연구 현황과 문제점 및 방향 (Status and Prospects of Seed Quality in Researches in Rapeseed)

  • 이정일;방진기;권병선;강광희
    • 한국작물학회지
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    • 제33권s01호
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    • pp.98-114
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    • 1988

  • This study was conducted to investigate the status and prospects of seed quality researches in rapeseed. Rapeseed Quality was mainly related to oil and protein content, fatty acid composition and glucosinolate content. Hence, breeding for improvement of rapeseed Quality has been emphasized as follows: 1) inheritance mode, 2) investigation of germplasm, 3) establishment of analysis technique, 4) establishment of selection method, 5) idealization of cultural technique. The oil quality is determined by its fatty acids. Fatty acids have been determined by gas chromatography. To improve oil quality was emphasized for zero erucic acid, the highest possible linoleic acid and the lowest possible linolenic acid content. Rapeseed meal is not considered as top quality feed ingredient although it has higher protein content and well-balanced amino acid composition. This is mainly because of the presence of considerable amounts of glucosinolates. Thus the reduction of glucosinolate content in rapeseed meal is of great importance. In breeding for meal quality, low glucosinolate lines (plants) were selected and analyzed by gas chromatography and UV-spectrophotometer. Current problems and future researches of rapeseed quality in Korea are 1) improvement of researcher's number and facilities, 2) depression of animal feeding trials, 3) unsatisfied relationship between research and manufacturing and products field, 4) improvement of fertility for yellow and thin seed coat lines crossed between mustard and rapeseed, 5) establishment of new rapid analysing system for rapeseed quality.

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컴퓨터 게임과 아동, 청소년 발달과의 관련성 연구 개관 (A review of researches of the impact of computer game and children's and adolescent's development)

  • 곽금주
    • 한국심리학회지 : 문화 및 사회문제
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    • 제10권spc호
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    • pp.147-175
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    • 2004

  • 본 연구에서는 전자오락으로 불리던 오락실 게임에서 인터넷으로 인해 멀티 플레이가 가능한 온라인 게임까지 포함한, 컴퓨터 게임이 아동과 청소년의 발달에 어떤 영향을 주었는지를 개관하였다. 구체적으로 손동작과 같은 운동능력, 시각-운동 측면에서의 영향, 그리고 주의, 공간지각력, 수리적 능력, 문제해결력을 포함한 지각, 인지적 측면에서의 영향을 알아보았다. 그리고 정서와 성격 측면, 그리고 사회성 발달과의 관련성을 살펴보았고, 가장 많이 연구가 이루어진 공격성발달과의 관련성, 특히 일반공격모델(GAM)을 집중적으로 개관하였다. 마지막으로 중독과 관련한 연구들을 소개하면서 컴퓨터 게임 중독 진단 도구의 개발에 관한 언급과 함께, 앞으로의 연구방향에 관해 논의 하였다.

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