Results 171 to 180 of about 2,795,898 (285)

Late stages of stellar evolution and their impact on spectrophotometric properties of galaxies [PDF]

, 2007
A. Buzzoni
openalex   +1 more source

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

Experimental 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, Christina Lysandrou, Laura Sudres, Alfonso Gil‐Martinez, Jaap Swanenburg, James Edward Clark, David Andrew Green   +6 more
wiley   +1 more source

A large, long-lived, slowly-expanding superbubble across the Perseus arm. [PDF]

Nat Commun
Chen B, Li G, Yuan H, Xiang M, Zhou J, Chen P, Krause M, Coombs A.   +7 more
europepmc   +1 more source

The origin and evolution of magnetic fields in clusters of galaxies [PDF]

, 2008
L. Feretti
openalex   +1 more source

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

Experimental Physiology, EarlyView.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier, Danielle K. Greaves, J. Kevin Shoemaker, Philippe Arbeille, Richard L. Hughson, Andrew D. Robertson   +5 more
wiley   +1 more source

The emergence of globular clusters and globular-cluster-like dwarfs. [PDF]

Nature
Taylor ED, Read JI, Orkney MDA, Kim SY, Pontzen A, Agertz O, Rey MP, Andersson EP, Collins MLM, Yates RM.   +9 more
europepmc   +1 more source

Galaxy Evolution in the last 9 Billion Years [PDF]

, 2007
Boris Häußler
openalex   +1 more source

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

Experimental 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

Could dark energy be changing over time? [PDF]

Proc Natl Acad Sci U S A
Mann A.
europepmc   +1 more source

Strong Redshift Evolution of Non-Gaussian Vorticity in Galaxy Velocity Fields: Possible Bispectral Evidence for Beyond-ΛCDM Physics from 2.8M SDSS and DESI Galaxies.

Vallejos, Omar Ariel
openalex   +1 more source