Results 31 to 40 of about 782,566 (296)

Estimation of dose and cancer risk to newborn from chest X-ray in South-South Nigeria: a call for protocol optimization

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2021
Background The use of X-ray as a diagnostic tool for complication and anomaly in the neonatal patient has been helpful, but the effect of radiation on newborn stands to increase their cancer risk.
Akintayo Daniel Omojola   +4 more
doaj   +1 more source

A Fundamental Line for Elliptical Galaxies

open access: yes, 2011
Recent studies have shown that massive galaxies in the distant universe are surprisingly compact, with typical sizes about a factor of three smaller than equally massive galaxies in the nearby universe.
Bernardi   +30 more
core   +1 more source

The average structural evolution of massive galaxies can be reliably estimated using cumulative galaxy number densities [PDF]

open access: yes, 2017
Galaxy evolution can be studied observationally by linking progenitor and descendant galaxies through an evolving cumulative number density selection. This procedure can reproduce the expected evolution of the median stellar mass from abundance matching.
Clauwens, Bart   +3 more
core   +3 more sources

Self-Calibration of Cluster Dark Energy Studies: Observable-Mass Distribution

open access: yes, 2005
The exponential sensitivity of cluster number counts to the properties of the dark energy implies a comparable sensitivity to not only the mean but also the actual_distribution_ of an observable mass proxy given the true cluster mass.
A. Eddington   +3 more
core   +1 more source

Diversity of the Rachis-Branching System in a Panicle in Japónica Rice

open access: yesPlant Production Science, 2003
Recently, rice varieties having large panicles with many spikelets are expected to produce high yield. However, the ripening, growth pattern, priority to photoassimilate partitioning and final grain weight in each spikelet vary with the position of the ...
Junko Yamagishi   +2 more
doaj   +1 more source

First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere [PDF]

open access: yesAnnales Geophysicae, 2000
The ionospheric electron gas can be heated artificially by a powerful radio wave. According to our modeling, the maximum effect of this heating occurs in the D-region where the electron temperature can increase by a factor of ten.
A. Kero   +4 more
doaj   +1 more source

Toward Precision Measurement of Central Black Hole Masses

open access: yes, 2010
We review briefly direct and indirect methods of measuring the masses of black holes in galactic nuclei, and then focus attention on supermassive black holes in active nuclei, with special attention to results from reverberation mapping and their ...
Bradley M. Peterson, Collin, Pastorini
core   +1 more source

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim   +8 more
wiley   +1 more source

Factorization for High-Energy Scattering [PDF]

open access: yesPhysical Review Letters, 1998
4 pages, Latex, 1 postscript figure, to appear in ...
openaire   +3 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

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