نتایج جستجو برای: core cities
تعداد نتایج: 268605 فیلتر نتایج به سال:
We consider the decentralized provision of global public good with local externalities in a spatially explicit model. Communities (municipalities, cities, countries) decide on the localization of a facility that bene ts to all but exhibits costs to the host and its neighbors. They share the costs through transfers. We examine the cooperative game associated with this so-called NIMBY problem ( N...
دایورسیتی انتقال متعامد (مانند دایورسیتی در زمان و فرکانس) یکی از روش های ایجاد دایورسیتی در فرستنده می باشد که در سیستم هایی که تحت تاثیر فیدینگ چند مسیره قرار می گیرند بسیار کارآمد می باشد. اما در این روش? کارآمدی پهنای باند با افزایش تعداد شاخه های دایورسیتی کاهش می یابد و از این رو در سیستم های مخابرات بی سیم کمتر مورد توجه قرار گرفته است. اخیراً بیان شده است که با استفاده از نگاشت بیت های م...
CONTEXT Local health departments (LHDs) have historically not prioritized policy development, although it is one of the 3 core areas they address. One strategy that may influence policy in LHD jurisdictions is the formation of partnerships across sectors to work together on local public health policy. DESIGN We used a network approach to examine LHD local health policy partnerships across 15 ...
OBJECTIVES This study measured age-specific seroprevalence of HIV, hepatitis B virus, and hepatitis C virus (HCV) infection among injection drug users (IDUs) admitted to drug treatment programs in 6 US cities. METHODS Remnant sera collected from persons entering treatment with a history of illicit drug injection were tested for antibodies to HIV, hepatitis C (anti-HCV), and hepatitis B core a...
The essay is framed by the proposition that cities are the frontier spaces for much of what is usually referred to as global governance challenges. It uses the case of asymmetric war to explore the contradictions that arise from this urbanizing – most significantly, the limits of superior military power when war moves to cities and the ways in which this makes powerlessness complex rather than ...
This is a reflective and theoretical paper. I begin by asking a pair of very simple questions: at what scale of resolution do I even start to think about the questions posed by the conference theme of cities between integration and disintegration; and second, what exactly is meant by the phrase production (emphasis in original) of cities in the call for papers? Clear responses turn out to be no...
This paper introduces a new approach for the design, deployment and operation of information and communication technology infrastructure for what we conceived as “Programmable Cities”. We address how urban environments can be retrofitted and complemented with technology considering the core nature of cities being systems of systems and complex adaptive systems. We believe that this novel approa...
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