Results 121 to 130 of about 153,388 (301)

50% body weight loading reduces stature increases and lumbar disc expansion from 4 h hyper‐buoyancy floatation versus 15 min sitting upright

open access: yesExperimental Physiology, EarlyView.
Abstract Microgravity is associated with stature increases, back pain and post‐flight intervertebral disc (IVD) herniation. This study aims to determine whether 30 s seated 50% body weight (BW) axial loading is comparable to 15 min sitting upright in 1 g upon changes in stature, anterior lumbar IVD height (via ultrasound), passive vertebral stiffness ...
David Marcos‐Lorenzo   +6 more
wiley   +1 more source

Intrinsic Mass–Richness Relation of Clusters from THE THREE HUNDRED Hydrodynamic Simulations

open access: yesThe Astrophysical Journal
The main systematics in cluster cosmology is the uncertainty in the mass–observable relation. In this paper, we focus on the most direct cluster observable in optical surveys, i.e., richness, and constrain the intrinsic mass–richness (MR) relation of ...
Mingjing Chen   +3 more
doaj   +1 more source

Studying the Patterns of the Universe

open access: yesOpen Astronomy, 2011
The SDSS galaxy catalog is one of the best databases for galaxy distribution studies. The SDSS DR8 data is used to construct the galaxy cluster catalog.
Sepp T.   +4 more
doaj   +1 more source

Clusters of Galaxies as Storage Room for Cosmic Rays [PDF]

open access: bronze, 1997
V. Berezinsky   +2 more
openalex   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Giant radio halos in galaxy clusters as probes of particle acceleration in turbulent regions

open access: yes, 2011
Giant radio halos in galaxy clusters probe mechanisms of particle acceleration connected with cluster merger events. Shocks and turbulence are driven in the inter-galactic-medium (IGM) during clusters mergers and may have a deep impact on the non-thermal
Brunetti, G.
core   +1 more source

Estimating Cluster Masses: A Comparative Study between Machine Learning and Maximum Likelihood

open access: yesThe Astrophysical Journal
We compare an autoencoder convolutional neural network (AE-CNN) with conventional maximum-likelihood estimation (MLE) for inferring cluster virial masses, M _v , directly from the galaxy distribution around clusters, without identifying members or ...
Raeed Mundow, Adi Nusser
doaj   +1 more source

Dermoscopy of Lichen Planus Follicularis Tumidus: A Case Report With Pattern Analysis and Literature Review

open access: yesClinical Case Reports, Volume 14, Issue 2, February 2026.
ABSTRACT Lichen planus follicularis tumidus (LPFT) is a rare variant of lichen planus presenting as erythematous to violaceous plaques with significant follicular involvement, most commonly in the retroauricular area. We report a case demonstrating a novel dermoscopic pattern reminiscent of a follicular galaxy, composed of variably sized comedo‐like ...
Vahidehsadat Azhari, Mina Saber
wiley   +1 more source

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