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Now showing items 33 - 48 of 16821920

  • A painter, a collector, and a horseshoe crab

    Rijks, Marlise  

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  • A Precipitate, a Glance

    Brown, Rebecca M.  

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  • A Precipitate, a Glance

    Brown, Rebecca M.  

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  • A so-called “Triglycine phosphate” is a dubious crystal

    Petrosyan, A.M.  

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  • A Fast-Changing World Calls for a Community with a Shared Future

    HOU YUXIANG   WU SIKE  

    THE year 2020 was an extraordinary one.The sudden outbreak of COVID-19 swept across the world,becoming the worst global public health disaster since World War II.However,the impact of the pandemic has gone far beyond issues of public health,triggering a domino effect in human life and setting new rules of the game in politics,economics,military,science and technology,and culture.Uncertainties and risks are both on the rise.Looking back into history,evolution of world situations is often accompanied by large-scale wars and turbulence.In addition to that,epidemics and crises have also affected the orientations of civilizations.This time,the combination of a once-in-a-century pandemic and changes unseen in a century is bound to reshape the world.
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  • A Rebel With a Cause: A Conversation With Haseena Moin

    Kothari, Shuchi  

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  • A community clinic's response to a hepatitis A outbreak

    Duncan, Lisa  

    The current hepatitis A outbreak in San Diego County, largely among homeless individuals and illicit drug users, prompted a community clinic to vaccinate at-risk patients. The clinic marshaled the efforts of multiple departments to educate and vaccinate 7,521 adults in 7 months. Strong support from executive leaders, coordinated efforts from various departments, and leveraged relationships with other community organizations and public health officials are key factors of a strong response to a public health concern. (C) 2018 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.
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  • Reaction-diffusion on the fully-connected lattice: A plus A -> A

    Turban, Loic   Fortin, Jean-Yves  

    Diffusion-coagulation can be simply described by a dynamic where particles perform a random walk on a lattice and coalesce with probability unity when meeting on the same site. Such processes display non-equilibrium properties with strong fluctuations in low dimensions. In this work we study this problem on the fully-connected lattice, an infinite-dimensional system in the thermodynamic limit, for which mean-field behaviour is expected. Exact expressions for the particle density distribution at a given time and survival time distribution for a given number of particles are obtained. In particular, we show that the time needed to reach a finite number of surviving particles (vanishing density in the scaling limit) displays strong fluctuations and extreme value statistics, characterized by a universal class of non-Gaussian distributions with singular behaviour.
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  • Between a rock and a workplace

    Anya Lawrence  

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  • Is a filled lateral canal – A sign of superiority?

    Teja, Kavalipurapu Venkata; Ramesh, Sindhu  

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  • Building a Milestone for a Community of a Shared Future

    Meng Fanchun  

    Dear readers,Here, you will read some touching stories about cooperation between a Chinese company and the Myanmar government, enterprises and people via a pipeline project. These stories verify the profound friendship between Myanmar and China, and indicate that such cooperation will continue to expand, deepen, and improve.The said project is Myanmar-China Oil and Gas Pipeline Project.
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  • A Game Between a Terrorist and a Passive Defender

    Opher Baron   Oded Berman   Arieh Gavious  

    In the last two decades, terrorism has become a major issue around the world. We analyze a continuous conflict between a terrorist (Terrorist) and a passive defender (Defender). Defender is passive because her actions can influence only the costs (damages) when Terrorist attacks. We focus on high‐trajectory fire attacks and passive responses to them in the conflict between Israel and the various terrorist groups in the Gaza Strip in accordance with scientific principles. We first consider three sources of data on this part of the conflict and based on these data we make several observations on the sustainability of cease fires, the use of technologies, different attacks, and the frequency of attacks, using high‐trajectory fire. To explain these observations, we present several stylized game theoretical models. Specifically, we consider single‐ and multi‐period games. In each period, Terrorist may attack Defender, who may in turn try to prevent damage. We show that given this conflict's political situation, our models are in agreement with the observations from the data. We also present an extension that considers an active defender. This extension also agrees with the observations from the data.
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  • “A Problem of Visibility”

    Faulkenbury, Evan  

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  • Kindesmisshandlung – Eine Übersicht

    Ohlwärther, Theresa; Dettmeyer, Reinhard; Birngruber, Christoph G.  

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  • Kongresse – Symposien – Seminare – Messen

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  • A path through a crowd

    Hurtley, Stella   Szuromi, Phil  

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