Institution
Boston College
Education•Boston, Massachusetts, United States•
About: Boston College is a education organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 9749 authors who have published 25406 publications receiving 1105145 citations. The organization is also known as: BC.
Topics: Population, Poison control, Catalysis, Context (language use), Politics
Papers published on a yearly basis
Papers
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TL;DR: A general synthetic strategy for yolk-shell nanocrystal@ZIF-8 nanostructures has been developed and the results show high activity for the ethylene and cyclohexene hydrogenations but not in the cyclooctene hydrogenation.
Abstract: A general synthetic strategy for yolk–shell nanocrystal@ZIF-8 nanostructures has been developed. The yolk–shell nanostructures possess the functions of nanoparticle cores, microporous shells, and a cavity in between, which offer great potential in heterogeneous catalysis. The synthetic strategy involved first coating the nanocrystal cores with a layer of Cu2O as the sacrificial template and then a layer of polycrystalline ZIF-8. The clean Cu2O surface assists in the formation of the ZIF-8 coating layer and is etched off spontaneously and simultaneously during this process. The yolk–shell nanostructures were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and nitrogen adsorption. To study the catalytic behavior, hydrogenations of ethylene, cyclohexene, and cyclooctene as model reactions were carried out over the Pd@ZIF-8 catalysts. The microporous ZIF-8 shell provides excellent molecular-size selectivity. The results show high activity for the ethylene an...
566 citations
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TL;DR: In this article, an industry equilibrium model where firms have a choice to engage in corporate social responsibility (CSR) activities is presented, where CSR as an investment to increase product differen...
Abstract: This paper presents an industry equilibrium model where firms have a choice to engage in corporate social responsibility (CSR) activities. We model CSR as an investment to increase product differen...
564 citations
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University of California, Davis1, Boston College2, University of Helsinki3, National Oceanic and Atmospheric Administration4, Environment Canada5, Washington State University6, Earth System Research Laboratory7, Cooperative Institute for Research in Environmental Sciences8, York University9, University of Alberta10, Pacific Northwest National Laboratory11, Research Triangle Park12
TL;DR: Direct measurements show that ambient atmospheric particulate black carbon absorbs less solar radiation than theory suggested, suggesting that many climate models may be overestimating the amount of warming caused by black carbon emissions.
Abstract: Atmospheric black carbon (BC) warms Earth’s climate, and its reduction has been targeted for near-term climate change mitigation. Models that include forcing by BC assume internal mixing with non-BC aerosol components that enhance BC absorption, often by a factor of ~2; such model estimates have yet to be clearly validated through atmospheric observations. Here, direct in situ measurements of BC absorption enhancements ( E abs ) and mixing state are reported for two California regions. The observed E abs is small—6% on average at 532 nm—and increases weakly with photochemical aging. The E abs is less than predicted from observationally constrained theoretical calculations, suggesting that many climate models may overestimate warming by BC. These ambient observations stand in contrast to laboratory measurements that show substantial E abs for BC are possible.
562 citations
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TL;DR: In this paper, the authors review some key coronal properties of CMEs, their source regions and their propagation through the solar wind, and the latest developments from the STEREO and LASCO coronagraphs and the SMEI and HI heliospheric imagers.
Abstract: Solar eruptive phenomena embrace a variety of eruptions, including flares, solar energetic particles, and radio bursts. Since the vast majority of these are associated with the eruption, development, and evolution of coronal mass ejections (CMEs), we focus on CME observations in this review. CMEs are a key aspect of coronal and interplanetary dynamics. They inject large quantities of mass and magnetic flux into the heliosphere, causing major transient disturbances. CMEs can drive interplanetary shocks, a key source of solar energetic particles and are known to be the major contributor to severe space weather at the Earth. Studies over the past decade using the data sets from (among others) the SOHO, TRACE, Wind, ACE, STEREO, and SDO spacecraft, along with ground-based instruments, have improved our knowledge of the origins and development of CMEs at the Sun and how they contribute to space weather at Earth. SOHO, launched in 1995, has provided us with almost continuous coverage of the solar corona over more than a complete solar cycle, and the heliospheric imagers SMEI (2003–2011) and the HIs (operating since early 2007) have provided us with the capability to image and track CMEs continually across the inner heliosphere. We review some key coronal properties of CMEs, their source regions and their propagation through the solar wind. The LASCO coronagraphs routinely observe CMEs launched along the Sun-Earth line as halo-like brightenings. STEREO also permits observing Earth-directed CMEs from three different viewpoints of increasing azimuthal separation, thereby enabling the estimation of their three-dimensional properties. These are important not only for space weather prediction purposes, but also for understanding the development and internal structure of CMEs since we view their source regions on the solar disk and can measure their in-situ characteristics along their axes. Included in our discussion of the recent developments in CME-related phenomena are the latest developments from the STEREO and LASCO coronagraphs and the SMEI and HI heliospheric imagers.
561 citations
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TL;DR: A phenomenological study of stock price fluctuations of individual companies, which finds that the tails of the distributions can be well described by a power-law decay, well outside the stable Lévy regime.
Abstract: We present a phenomenological study of stock price fluctuations of individual companies. We systematically analyze two different databases covering securities from the three major U.S. stock markets: ~a! the New York Stock Exchange, ~b! the American Stock Exchange, and ~c! the National Association of Securities Dealers Automated Quotation stock market. Specifically, we consider~i! the trades and quotes database, for which we analyze 40 million records for 1000 U.S. companies for the 2-yr period 1994‐95; and ~ii! the Center for Research and Security Prices database, for which we analyze 35 million daily records for approximately 16 000 companies in the 35-yr period 1962‐96. We study the probability distribution of returns over varying time scales Dt, where Dt varies by a factor of ’10 5 , from 5 min up to ’4 yr. For time scales from 5 min up to approximately 16 days, we find that the tails of the distributions can be well described by a power-law decay,
557 citations
Authors
Showing all 9922 results
Name | H-index | Papers | Citations |
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Eric J. Topol | 193 | 1373 | 151025 |
Gang Chen | 167 | 3372 | 149819 |
Wei Li | 158 | 1855 | 124748 |
Daniel L. Schacter | 149 | 592 | 90148 |
Asli Demirguc-Kunt | 137 | 429 | 78166 |
Stephen G. Ellis | 127 | 655 | 65073 |
James A. Russell | 124 | 1024 | 87929 |
Zhifeng Ren | 122 | 695 | 71212 |
Jeffrey J. Popma | 121 | 702 | 72455 |
Mike Clarke | 113 | 1037 | 164328 |
Kendall N. Houk | 112 | 997 | 54877 |
James M. Poterba | 107 | 487 | 44868 |
Gregory C. Fu | 106 | 381 | 32248 |
Myles Brown | 105 | 348 | 52423 |
Richard R. Schrock | 103 | 724 | 43919 |