검색결과

검색조건
좁혀보기
검색필터
결과 내 재검색

간행물

    분야

      발행연도

      -

        검색결과 351

        163.
        2010.12 구독 인증기관 무료, 개인회원 유료
        This study is a substantive, qualitative survey targeting 500 high school students to discern the television and Internet media viewing behavior of secondary schools in a populous area such as Niigata City and Nagaoka City where presumably provides different sociological backgrounds and levels . The purposes of the study are a) to basically discern the major media viewing behavior of students, b) to examine the significance of the Cellular phone novels (KEITAI novels) in education from the perspective of media literacy based on the examining the effectiveness of KEITAI novels as teaching materials for educational guidelines. The survey results showed that students used the Internet mainly through their cellular phones. For both television and Internet viewing, the study showed a couple of unintentional tendencies: i) students avoid talking with friends about viewing their favorite media, ii) students wrap themselves in their media viewing depending on the situation and place. The usage of cellular phones in Japanese high schools seems ubiquitous. Students prefer reading using cellular phones. Cellular phone novels (Keitai novels) are widely read in Japan.
        4,900원
        174.
        2009.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Mongolia has 80% livestock of total agriculture industry, 170,000 farms are engaged, 2,500,000 of cows that were beef and dairy cows are raised. Despite of Mongolian has great application with milk, there are not clear differences between cow and dairy cattle, and the production of milk is also low. But the milk suppliers are varied (horse, sheep, goat, etc), so that the total milk production is 500 thousand ton per year. It's really considerable to improve the breed of owing to many problems with big differences among milk qualities. For carrying out for first year project, artificial insemination project was operated with 3rd grade Holstein semen that were imported from S. Korea, and initiation and field training were also carried out through appropriate AI technique we developed for Mongolia environment. Local information research and MOU conclusion were done with professor D. Altangerel in May , 2009, and development for AI technique and AI equipments were supplied for Mongolia breeding and natural environment in July in 2009. All cows were treated by synchronization for AI. To do this, injection were treated for luteal phase cow, if it wouldn't work, try again after 11 days. After confirmation of estrus, AI and AI training were carried out with sperm injection in the uterus or cervix by rectum-vagina method which is common worldwide, the most effective artificial insemination technique. If cows were return to next estrus cycle, second AI was carried out about approximately 21 days after artificial insemination. After 2 months, all cows not showing return estrus should be taken pregnancy test. Every pregnant cow will be cared thoroughly. Total 48 cows administrated by for synchronization and after 48 hours 45 cows (93.8%) showing estrus were detected and then artificial inseminate them within who 8 cows (27.8%) showed return estrus. Therefore, Using for synchronization is effective to use for Mongolia breeding conditions. There are possibility of base for food production after all, including increase of livestock production in Mongolia by improvement of breeding cow with AI and embryo transfer project.
        3,000원
        176.
        2009.10 구독 인증기관 무료, 개인회원 유료
        Vector-borne diseases are transmitted to humans by blood-feeding arthropods such as mosquitoes, ticks, and fleas. These cold-blooded animals are influenced by environmental change. A recent report by IPCC showed that the emission of greenhouse gases has already changed world climates. Heat waves in Europe, rises in global mean sea level, summer droughts and wild fires, more intense precipitation, and increasing numbers of large cyclones, hurricanes and typhoon may be typical example of extreme climate phenomena related to global warming. High temperatures during winter season may increase survival rate among arthropod vectors in Temperate Zone. Warming may accelerate the spread of mosquitoes such as Aedes albopictus in the northern parts of Japan and European countries. The spread of the mosquito vector through global used-tire trading in recent decades to Africa, the Mideast, Europe, and North and South America caused an outbreak of Chikungunya fever in north Italy in 2007.
        3,000원
        177.
        2009.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The importance of nanopore structures of carbons is shown in terms of interaction potential for various molecules including supercritical gases such as H2 and CH4. The key factors for adsorption of supercritical H2 and CH4 are shown for single wall carbon nanohorn, single wall carbon nanotube, and double wall carbon nanotube. The cluster formation of molecules is a key process for water adsorption on hydrophobic carbon nanopores. The X-ray absorption spectroscopic examination elucidates an explicit dehydration structure of ions confined in carbon nanopores.
        3,000원
        178.
        2009.08 구독 인증기관·개인회원 무료
        As a laborsaving technique for weed control in a mountainous area in Japan, an integrated grazing system (IGS) for scattered small pastures has gathered attention recently. The objective was to estimate the loading doses of nitrate-N and ammonium-N in soils and agricultural water as result of this IGS approach compared with other land uses. As a result of time-course profiles of nitrate-N and ammonium-N in surface soils, the effect of applied fertilizers was emphasized more than the effect of manure produced by grazing animals. The nitrate concentrations of under-drainage from pasture were the same or lower than those of agricultural water below a vegetable field during grazing periods. It was considered that the IGS was at least the same or had a lower impact on N levels than that of vegetable fields.