Results 91 to 100 of about 5,809 (203)

Utopia Remembers: The Soviet Past in the Imagined Communist Future

The Russian Review, EarlyView.
Abstract After a twenty‐five‐year hiatus, the reappearance of utopian literature in 1957 prompted Soviet literary watchdogs to corral the subgenre into an ideologically‐acceptable mold. A key requirement was for future generations to be depicted as reverently commemorating the past.
Antony Kalashnikov
wiley   +1 more source

Mass‐to‐Light Ratios of Groups and Clusters of Galaxies

The Astrophysical Journal, 2000
We constrain the mass-to-light ratios, gas mass fractions, baryon mass fractions and the ratios of total to luminous mass for a sample of eight nearby relaxed galaxy groups and clusters: A262, A426, A478, A1795, A2052, A2063, A2199 and MKW4s. We use ASCA spatially resolved spectroscopic X-ray observations and ROSAT PSPC images to constrain the total ...
Hradecky, V., Jones, C., Donnelly, R. H., Djorgovski, S. G., Gal, R. R., Odewahn, S. C.   +5 more
openaire   +2 more sources

Galaxy Superclusters and Their Complexes in the Cosmic Web

Universe
The richest and largest structures in the cosmic web are galaxy superclusters, their complexes (associations of several almost connected very rich superclusters), and planes.
Maret Einasto
doaj   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

Experimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford, Danielle J. Carroll, Heather C. M. Allaway, Bonnie J. Dunbar, Aenor J. Sawyer   +4 more
wiley   +1 more source

Constraining Gas Mass Fractions in Galaxy Groups and Clusters with the First CHIME/FRB Outrigger

The Astrophysical Journal
In recent years, localized fast radio bursts (FRBs) have emerged as a powerful tool to study the structure of the baryonic matter in the Universe. Their dispersion measures (DMs) scale linearly with electron density independent of gas temperature, making
Adam E. Lanman, Sunil Simha, Kiyoshi W. Masui, J. Xavier Prochaska, Rachel Darlinger, Fengqiu Adam Dong, B. M. Gaensler, Ronniy C. Joseph, Jane Kaczmarek, Lordrick Kahinga, Afrokk Khan, Calvin Leung, Lluis Mas-Ribas, Swarali Shivraj Patil, Aaron B. Pearlman, Mawson Sammons, Kaitlyn Shin, Kendrick Smith, Haochen Wang   +18 more
doaj   +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

Formation of Groups and Clusters of Galaxies

, 1998
The formation, inner properties, and spatial distribution of galaxy groups and clusters are closely related to the background cosmological model. We use numerical simulations of variants of the CDM model with different cosmological parameters and distinguish relaxed objects from recent mergers using the degree of virialisation.
Knebe, Alexander, Mueller, Volker
openaire   +2 more sources

The XMAGNET Exascale MHD Simulations of SMBH Feedback in Galaxy Groups and Clusters: Overview and Preliminary Cluster Results

The Astrophysical Journal
We present initial results from extremely well-resolved 3D magnetohydrodynamical simulations of idealized galaxy clusters, conducted using the AthenaPK code on the Frontier exascale supercomputer.
Philipp Grete, Brian W. O’Shea, Forrest W. Glines, Deovrat Prasad, Benjamin D. Wibking, Martin Fournier, Marcus Brüggen, G. Mark Voit   +7 more
doaj   +1 more source

Testing X-ray selection effects with four rich, yet X–ray–faint, galaxy clusters

Astronomy & Astrophysics
A robust understanding of selection effects in galaxy cluster studies is crucial for both astrophysical and cosmological applications. Examining clusters identified through different observational strategies, even in small numbers, helps to illuminate ...
Andreon S., Moretti A.
doaj   +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