112,158 research outputs found
Reimann's "Habitual Hyperthermia" Responding to Hormone Therapy.
A 25-year-old woman presented with fever of unknown origin, exhibiting malaise and low-grade fevers in evenings. These fevers exhibited a pattern of starting mid-menstrual cycle with resolution around the onset of menses, matching a pattern of "habitual hyperthermia" reported by H. Reimann in the 1930s. Extensive workup was unremarkable, and the fevers improved on oral synthetic estrogen and progesterone therapy
Statistical properties of localisation--delocalisation transition in one dimension
We study a one-dimensional model of disordered electrons (also relevant for
random spin chains), which exhibits a delocalisation transition at
half-filling. Exact probability distribution functions for the Wigner time and
transmission coefficient are calculated. We identify and distinguish those
features of probability densities that are due to rare, trapping configurations
of the random potential from those which are due to the proximity to the
delocalisation transition.Comment: 4 pages, RevTeX, 1 fi
Axion Dark Matter and Cosmological Parameters
We observe that photon cooling after big bang nucleosynthesis (BBN) but
before recombination can remove the conflict between the observed and
theoretically predicted value of the primordial abundance of Li. Such
cooling is ordinarily difficult to achieve. However, the recent realization
that dark matter axions form a Bose-Einstein condensate (BEC) provides a
possible mechanism, because the much colder axions may reach thermal contact
with the photons. This proposal predicts a high effective number of neutrinos
as measured by the cosmic microwave anisotropy spectrum.Comment: 4 pages, one figure. Version to appear in Phys. Rev. Lett.,
incorporating useful comments by the referees and emphasizing that photon
cooling by axion BEC is a possibility, not a certaint
Integrating public datasets using linked data: challenges and design principles
The world is moving from a state where there is paucity of data to one of surfeit. These data, and datasets, are normally in different datastores and of different formats. Connecting these datasets together will increase their value and help discover interesting relationships amongst them. This paper describes our experience of using Linked Data to inter-operate these different datasets, the challenges we faced, and the solutions we devised. The paper concludes with apposite design principles for using linked data to inter-operate disparate datasets
Detection of a Compact Nuclear Radio Source in the Local Group Elliptical Galaxy M32
The Local Group compact elliptical galaxy M32 hosts one of the nearest
candidate super-massive black holes (SMBHs), which has a previously suggested
X-ray counterpart. Based on sensitive observations taken with the {\it Karl G.
Jansky} Very Large Array (VLA), we detect for the first time a compact radio
source coincident with the nucleus of M32, which exhibits an integrated flux
density of Jy at 6.6 GHz. We discuss several
possibilities for the nature of this source, favoring an origin of the
long-sought radio emission from the central SMBH, for which we also revisit the
X-ray properties based on recently acquired {\sl Chandra} and {\sl XMM-Newton}
data. Our VLA observations also discover radio emission from three previously
known optical planetary nebulae in the inner region of M32.Comment: 13 pages, 2 figures, accepted by ApJ Letter
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