Results 21 to 30 of about 128,865 (216)
The Identification of Dark Matter, 2007 The size and time of formation of the first gravitationally bound objects in the Universe is set by the microphysical properties of the dark matter. It is argued that observations seem to favour cold and thermal candidates for the main contribution to the dark matter.
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Electronic cigarette vapour increases virulence and inflammatory potential of respiratory pathogens
Respiratory Research, 2019 Introduction Bacteria have been extensively implicated in the development of smoking related diseases, such as COPD, by either direct infection or bacteria-mediated inflammation.
Deirdre F. Gilpin +7 more
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Multi-Trophic Species Interactions Shape Seascape-Scale Coral Reef Vegetation Patterns
Frontiers in Ecology and Evolution, 2019 How species interactions shape habitat structure is a longstanding question in ecology. A curious phenomenon reflecting ecological self-organization around reef habitat structures exists on coral reefs: large-scale (hundreds to hundreds of thousands of ...
Elizabeth M. P. Madin +9 more
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AIP Conference Proceedings, 2010 Galaxies are composed of baryonic stars and gas embedded in dark matter halos. Here I briefly review two aspects of the connection between baryons and their halos. (1) The observed baryon content of galaxies falls short of the cosmic baryon fraction by an amount that varies systematically with mass. Where these missing baryons now reside is unclear. (2)
Stacy McGaugh +2 more
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Cosmological Simulation for Fuzzy Dark Matter Model
Frontiers in Astronomy and Space Sciences, 2019 Fuzzy Dark Matter (FDM), motivated by string theory, has recently become a hot candidate for dark matter. The rest mass of FDM is believed to be ~10−22eV and the corresponding de-Broglie wave length is ~1kpc. Therefore, the quantum effect of FDM plays an
Jiajun Zhang, Hantao Liu, Ming-Chung Chu
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Direct Measurement of the HI-Halo Mass Relation through Stacking [PDF]
, 2020 We present accurate measurements of the total HI mass in dark matter halos of different masses at z ~ 0, by stacking the HI spectra of entire groups from the Arecibo Fast Legacy ALFA Survey. The halos are selected from the optical galaxy group catalog constructed from the Sloan Digital Sky Survey DR7 Main Galaxy sample, with reliable measurements of ...
arxiv +1 more source
Frontiers in Medicine, 2020 Acinetobacter baumannii is a leading cause of healthcare-associated infections worldwide. Its various intrinsic and acquired mechanisms of antibiotic resistance make the therapeutic challenge even more serious. One of the promising alternative treatments
Goran Vukotic +10 more
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The Halo by Halo Missing Baryon Problem [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractThe global missing baryon problem – that the sum of observed baryons falls short of the number expected form BBN – is well known. In addition to this, there is also a local missing baryon problem that applies to individual dark matter halos.
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BMC Public Health, 2019 Background Active transportation (AT), independent mobility (IM), and outdoor time are promising ways to increase children’s physical activity. However, in order to create interventions to increase those forms of physical activity, it is important to ...
Christine Delisle Nyström +8 more
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