1,946,623 research outputs found

    Pembuatan Aplikasi Multimedia Untuk Membantu Siswa Sekolah Dasar Dalam Mempelajari Sains

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    Science is very important in our everyday lives. That is the reason why students have to learn science since the beginning of their primary school. However, many students find difficulties in studying science. Some experts believe that the use of multimedia software can help students in learning science. In this case, the creation of science learning aid software with multimedia capabilities can be useful for both students and teachers. With the software’s capability of visualizing the objects, and enhancing it with animation and sound, students are expected to have better understanding. Based on the software’s evaluation performed by the students and teachers, most respondents found that the science learning aid software are really helpful in studying science

    Antigen-Specific Polyclonal Cytotoxic T Lymphocytes Induced by Fusions of Dendritic Cells and Tumor Cells

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    The aim of cancer vaccines is induction of tumor-specific cytotoxic T lymphocytes (CTLs) that can reduce the tumor mass. Dendritic cells (DCs) are potent antigen-presenting cells and play a central role in the initiation and regulation of primary immune responses. Thus, DCs-based vaccination represents a potentially powerful strategy for induction of antigen-specific CTLs. Fusions of DCs and whole tumor cells represent an alternative approach to deliver, process, and subsequently present a broad spectrum of antigens, including those known and unidentified, in the context of costimulatory molecules. Once DCs/tumor fusions have been infused back into patient, they migrate to secondary lymphoid organs, where the generation of antigen-specific polyclonal CTL responses occurs. We will discuss perspectives for future development of DCs/tumor fusions for CTL induction.Grants-in-Aid for Scientific Research from the Ministry of Education, Cultures, Sports, Science and Technology of Japan, Grant-in-Aid of the Japan Medical Association, Takeda Science Foundation, Pancreas Research Foundation of Japan, The Promotion and Mutual Aid Corporation for Private School of Japan and Foundation for Promotion of Cancer Researc

    The domestic political impact of foreign aid: recalibrating the research agenda

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    The recent concentration of attention by some political scientists on evaluating the effectiveness of democracy assistance, drawing on the transient policy concerns of major donors, is a welcome innovation to a research agenda traditionally biased towards aid's significance for economic development. But its focus is restricted and unrepresentative. This article argues the case for a more comprehensive assessment of the domestic political consequences - both direct and indirect - of all forms of aid, in principle for aid recipients everywhere. This recommendation offers the advantage of serving the limited purposes of analysts of democratisation generally and democracy aid specifically, but more importantly reconnects their approach with the broader political analysis of aid by a wider social science community. It is important to 'think outside the box' of contemporary donor concerns, recalibrating the research agenda in ways that raise other political priorities. The article offers a framework for this purpose. Comprehending the political dynamics in aid-receiving countries should be the primary orienting principle, rather than viewing countries as objects of aid and proceeding to interpret their politics through the distorting lens of donor perspectives

    The influence of context on science curricula: Observations, conclusions and some recommendations for curriculum development and implementation

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    The genesis of this project and book was our experiences of teaching science and science education at various levels in developing countries; in the Pacific and the Caribbean. These experiences along with numerous conversations with other teachers and educators who had worked in Africa and elsewhere left us with something of a sense of despair. We constantly confronted Western or foreign science curricula which were plainly alien to science learners in non-Western contexts. We witnessed numerous curricula reforms and professional development initiatives, many of which seemed doomed to failure. In fact Helu-Thaman (1991) referred to the ‘wreckage’ of aid-funded curricula initiatives all around the Pacific. Probably the most alarming aspect in all of this was the role of the foreign expert. Someone, normally ‘aid-funded’, who turned up for a short period of time to tell the locals what they should be doing! The naiveté of some of these people was truly remarkable (or perhaps they just didn’t care?). Failure of the program or reforms was generally attributed to the locals not ‘seeing it through’ or not quite understanding the new curriculum initiatives. There was little effort made to take into account local conditions or the views of local experts, especially teachers

    Importance of Acid–Base Equilibrium in Electrocatalytic Oxidation of Formic Acid on Platinum

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    This work was supported by Japanese Society for the Promotion of Science (JSPS) KAKENHI Grants Nos. 24550143 and 24750117 and MEXT Project of Integrated Research on Chemical Synthesis. M.T.M.K. gratefully acknowledges the award of Long-Term Fellowship of JSPS (No. L-11527) and Visiting Professorship of Hokkaido University. T.U. acknowledges Grants-in-Aid for Regional R&D Proposal-Based Program from Northern Advancement Center for Science & Technology of Hokkaido, Japan. J.J. acknowledges scholarship of Asian Graduate School, Hokkaido University.Peer reviewedPostprin

    Regulation of Tumor Immunity by Tumor/Dendritic Cell Fusions

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    The goal of cancer vaccines is to induce antitumor immunity that ultimately will reduce tumor burden in tumor environment. Several strategies involving dendritic cells- (DCs)- based vaccine incorporating different tumor-associated antigens to induce antitumor immune responses against tumors have been tested in clinical trials worldwide. Although DCs-based vaccine such as fusions of whole tumor cells and DCs has been proven to be clinically safe and is efficient to enhance antitumor immune responses for inducing effective immune response and for breaking T-cell tolerance to tumor-associated antigens (TAAs), only a limited success has occurred in clinical trials. This paper reviews tumor immune escape and current strategies employed in the field of tumor/DC fusions vaccine aimed at enhancing activation of TAAs-specific cytotoxic T cells in tumor microenvironment.Foundation for the Promotion of Cancer Research; Mitsui Life Social Welfare Foundation; Grants-in-Aid for Scientific Research from the Ministry of Education, Cultures, Sports, Science, and Technology of Japan; Grant-in-Aid of the Japan Medical Association; Takeda Science Foundation; Pancreas Research Foundation of Japa

    The role of trade literature in the communication system

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    Bibliometric methods in general undervalue technological research. This study examines the relation in literature between technological/industrial journals and scientific journals in the case of the plastics industry and polymer science. Trade-journals cannot be used in a straightforward bibliometric manner, but can be an aid in mapping the different groups and reveal the lsquohiddenrsquo communication between technological and scientific communities

    Status and Future Perspectives for Lattice Gauge Theory Calculations to the Exascale and Beyond

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    In this and a set of companion whitepapers, the USQCD Collaboration lays out a program of science and computing for lattice gauge theory. These whitepapers describe how calculation using lattice QCD (and other gauge theories) can aid the interpretation of ongoing and upcoming experiments in particle and nuclear physics, as well as inspire new ones.Comment: 44 pages. 1 of USQCD whitepapers
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