1,668,986 research outputs found

    Two-pion Bose-Einstein correlations in Pb-Pb collisions at 2.76 TeV with ALICE

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    We present the first measurement of pion source radii in Pb-Pb collisions at the LHC. The radii were obtained by analyzing the Bose-Einstein enhancement in two-pion correlation functions. Like at lower energies, the radii drop with increasing transverse momentum, indicating presence of collective expansion. In absolute terms, all three radii (Rout, Rside, Rlong) are larger than at RHIC, roughly consistent with a linear scaling with the cube root of the particle multiplicity

    Managing the Environment and Natural Resources: Lessons from City Program Innovations

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    The enactment of 1991 Local Government Code has brought greater responsibilities for local government units to manage their natural resources and the environment. This move has encouraged greater dynamism and innovation in some Philippine cities. Strategies employed and programs undertaken by various cities largely depend on the stage of development and their respective focus and priorities. For large urban cities, environmental problems are associated with growth and economic activity and thus, a special attention is given for a clean air and a healthy environment. This paper aims to draw lessons from selected cities that have undertaken innovative environmental programs and to highlight key elements that have made their programs successful and sustainable.metropolitan structure, metropolitan planning and development, environmental management

    Environmental and Natural Resources Management: Lessons from City Program Innovations

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    The enactment of the 1991 Local Government Code has brought greater responsibilities for local government units to manage their natural resources and the environment. This move has encouraged greater dynamism and innovation in some Philippine cities. Strategies employed and programs undertaken by various cities largely depend on the stage of development and their respective focus and priorities. For large urban cities, environmental problems are associated with growth and economic activity and thus, a special attention is given for a clean air and a healthy environment. This paper aims to draw lessons from selected cities that have undertaken innovative environmental programs and to highlight key elements that have made their programs successful and sustainable.metropolitan structure, environmental issues, metropolitan planning and development, environmental management

    Environmental and Natural Resources Management: Lessons from City Program Innovations

    Get PDF
    The enactment of the 1991 Local Government Code has brought greater responsibilities for local government units to manage their natural resources and the environment. This move has encouraged greater dynamism and innovation in some Philippine cities. Strategies employed and programs undertaken by various cities largely depend on the stage of development and their respective focus and priorities. For large urban cities, environmental problems are associated with growth and economic activity and thus, a special attention is given for a clean air and a healthy environment. This paper aims to draw lessons from selected cities that have undertaken innovative environmental programs and to highlight key elements that have made their programs successful and sustainable.metropolitan structure, environmental issues, metropolitan planning and development, environmental management

    Guidelines and Procedures for Patent Application

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    To educate Filipinos on IPR, this article provides a rigorous discussion on the Philippine patent system and patent law. It identifies the patentable grant, the requirements of patentability and records a step-by-step patent application. This article has been presented during the DOST-PIDS Seminar-Discussion on “Intellectual Property Rights: Policy Issues and Perspectives” on December 13, 1991.patent and license, intellectual property rights

    Improving the Spatial Dimension of the Annual Budget

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    With the delivery of most basic social services now devolved in the hands of local government units, has the process of budgeting followed suit? How far has the spatial dimension of the annual budget taken shape? Has regional budgeting--which was introduced as far back as the 1970s--become the norm and institutionalized as a process?fiscal management, fiscal sector

    Guidelines and Procedures for Patent Application

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    To educate Filipinos on IPR, this article provides a rigorous discussion on the Philippine patent system and patent law. It identifies the patentable grant, the requirements of patentability and records a step-by-step patent application. This article has been presented during the DOST-PIDS Seminar-Discussion on “Intellectual Property Rights: Policy Issues and Perspectives” on December 13, 1991.patent and license, intellectual property rights

    Short-term antigen presentation and single clonal burst limit the magnitude of the CD8(+) T cell responses to malaria liver stages.

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    Malaria sporozoites induce swift activation of antigen-specific CD8(+) T cells that inhibit the intracellular development of liver-stage parasites. The length of time of functional in vivo antigen presentation, estimated by monitoring the activation of antigen-specific CD8(+) T cells, is of short duration, with maximum T cell activation occurring within the first 8 h after immunization and lasting approximately 48 h. Although the magnitude of the CD8(+) T cell response closely correlates with the number of parasites used for immunization, increasing the time of antigen presentation by daily immunizations does not enhance the magnitude of this response. Thus, once a primary clonal burst is established, the CD8(+) T cell response becomes refractory or unresponsive to further antigenic stimulation. These findings strongly suggest that the most efficient strategy for the induction of primary CD8(+) T cell responses is the delivery of a maximal amount of antigen in a single dose, thereby ensuring a clonal burst that involves the largest number of precursors to become memory cells
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