4,118 research outputs found
Low dose radiation exposure and cardiovascular diseases: a review
ICRP stated that particular attention should be paid to radiation effects in the cardiovascular system because of recent published observations of radiation effects in this systems occurring after much lower doses than reported previously (ICRP, 2007 and 2012). The review was based on scientific articles available in the open literature, major reviews by other organizations, in particular International Commission on Radiation Protection (ICRP, 118). In this review, we describe low-dose ionizing radiation effect, causes of cardiovascular diseases, relationship between low-dose ionizing radiation and cardiovascular diseases, as well as the importance and urgent of elucidate the relationship between low dose ionizing radiation and cardiovascular disease
Incorporating Intra-Class Variance to Fine-Grained Visual Recognition
Fine-grained visual recognition aims to capture discriminative
characteristics amongst visually similar categories. The state-of-the-art
research work has significantly improved the fine-grained recognition
performance by deep metric learning using triplet network. However, the impact
of intra-category variance on the performance of recognition and robust feature
representation has not been well studied. In this paper, we propose to leverage
intra-class variance in metric learning of triplet network to improve the
performance of fine-grained recognition. Through partitioning training images
within each category into a few groups, we form the triplet samples across
different categories as well as different groups, which is called Group
Sensitive TRiplet Sampling (GS-TRS). Accordingly, the triplet loss function is
strengthened by incorporating intra-class variance with GS-TRS, which may
contribute to the optimization objective of triplet network. Extensive
experiments over benchmark datasets CompCar and VehicleID show that the
proposed GS-TRS has significantly outperformed state-of-the-art approaches in
both classification and retrieval tasks.Comment: 6 pages, 5 figure
Internal structure of hairy rotating black holes in three dimensions
We construct hairy rotating black hole solutions in three dimensional
Einstein gravity coupled to a complex scalar field. When we turn on a real and
uniform source on the dual CFT, the black hole is stationary with two Killing
vectors and we show that there is no inner horizon for the black hole and the
system evolves smoothly into a Kasner universe. When we turn on a complex and
periodic driving source on the dual CFT with a phase velocity equal to the
angular velocity of the black hole, we have a time-dependent black hole with
only one Killing vector. We show that inside the black hole, after a rapid
collapse of the Einstein-Rosen bridge, oscillations of the scalar field follow.
Then the system evolves into the Kasner epoch with possible Kasner inversion,
which occurs in most of the parameter regimes. In both cases, one of the metric
fields obeys a simple relation between its value at the horizon and in the
Kasner epoch.Comment: 35 pages, 14 figure
A common polymorphism rs3781637 in MTNR1B is associated with type 2 diabetes and lipids levels in Han Chinese individuals
Structural and functional analysis of amphioxus HIFĪ± reveals ancient features of the HIFĪ± family
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154538/1/fsb2028004032.pd
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