This study examined how speed was related to movement accuracy in terms of impulse variability in a timing task. The scaling of kinetic parameters in impulse resulted in the kinematic error function in a nonlinear fashion. Three experiments investigated the effect of force parameter scaling, time parameter scaling, and scaling of both parameters, The results showed that the speed itself was not sufficient enough to explain movement spatial accuracy. Spatial accuracy was proportional to the impulse variability multiplied by movement time. Timing accuracy was sensitive to the rate of force production in addition to movement time. It was also discussed that why the speed-accuracy relation was different from that of Fitts` aiming paradigm.

진정한 교육은 모름지기 전인적 또는 전기능적 인간을 창출하는데 노력을 기울여야 할것이다. 현재 우리의 학교교육은 단편적 지식 습득에 편중된 입시 위주의 교육으로 인지적 교육목표 중에서도 고차원의 교육목표(통합, 평가)를 소홀히 할 뿐 아니라 인지적 발달과 더불어 조화롭게 발달되어야 할 정의적 영역의 학습 경험은 거의 무시되고 있어 12년이란 긴 세월을 교육에 보내고서도 학생들의 전인적 인격 형서에 결함을 드러내고 있다. 해방 이후 지난 40여년 동안 국가 발전이라는 중차대한 목표하에 교육은 개인의 삶의 의미나 가치관 같은 본질적인 문제보다는 국가경제와 직결되는 기술 및 지식의 전수에 몰두해온 것이 사실이며, 그로써 교육의 몫을 크게한 것을 부정할 수는 없다.

In Korea, the importance of keeping the see transportation facilities and well-trained maritime officers cannot be overemphasized, because of her geographical location and the national security in terms of both political and economical situations. In this paper, some points are suggested for the development of the nautical education in Korea Maritime University: (1) the strict regimental training should be kept as a vital important part of students life and its program should be designed to provide students with leadership training and experience, and to develope in the qualities of responsibilities for good citizenship and self-discipline to overcome hardwork for careers as leaders in Korea maritime industry. And therefore the dormitory and training vessel as essential parts of the educational facilities should be improved both in quality and quantity, (2) the undergraduate course should be extended to more than 5 years so that accredited baccalaureate curriculum and licensing professional education might be well conducted to meet the requirements to cope with the international competition in the facet of seafarers quality, (3) more enlarging the opportunities of incentive payments for students is required so that better qualified applicants can be admitted, (4) finally, a conjugal maritime officer service system should be put into practice in the foresseable furture so that seafarers might live normal family lives while staying at sea.

Use of herbicides in Korean agriculture has increased rapidly in recent years accompanying with ever-increasing pressure of farm labor shortage. Herbicides occupied already the second place in the rank of pesticides consumption in 1977. The agricultural experiment stations have carried out over 50 trials of chemical weed control each year since 1968. These research works and registration trials contributed much to the present wide use of herbicides. The pesticide management act amended in 1977 requires reevaluation of pesticides for their efficacy every 5 year-term. However, the development of sound weed control program and recommendations has been hempered very much by the lack of qualified workers of weed control research in agricultural experiment stations and in the institute for pesticide registration trial. Critical review of the past research works on herbicide evaluation and the present status indicates strong need for 1) the characterization of the nature of local and national weed problem, 2) the improvement of ability of the staffs in charge of weed control research through appropriate training on the basics and experimental techniques, and 3) organization and activities of weed control research committee. Furthermore, the present article attempts to clarify commonly misled points in the establishment of herbicide evaluation plan, in the design and execution of field trials, and in the assessment of trial results of the past works from the viewpoint of the basic principles with some case studies for resolution of specific enigmas