Results 121 to 130 of about 106,851 (294)

Radiation‐Induced Degradation in Polymeric Materials: Alterations in Physical–Chemical Properties and Their Effects on Electrical Performance of Insulation Systems

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper investigates the effects of radiation on polymeric materials used as insulation systems in electrical equipment such as cables for nuclear and particle accelerator applications. After a detailed description of the physics of radiation‐induced damage in the polymeric matrix, a comprehensive analysis of the physical–chemical and ...
Simone Vincenzo Suraci, Davide Fabiani
wiley   +1 more source

Observational Biases on Rotation Curves from Integral Field Unit Data at Cosmic Noon

open access: yesThe Astrophysical Journal
Through studying rotation curves, which depict how the velocity of the stars and gas changes with distance from the center of a galaxy, it has been confirmed that dark matter dominates galaxies’ outer regions, as their rotation curve remains flat ...
Amanda E. Araujo-Carvalho   +4 more
doaj   +1 more source

ROTATION CURVE OF THE MILKY WAY OUT TO ∼200 kpc [PDF]

open access: yes, 2013
The rotation curve (RC) of our Galaxy, the Milky Way, is constructed starting from its very inner regions (few hundred parsecs) out to a large galactocentric distance of ∼200 kpc using kinematical data on a variety of tracer objects moving in the ...
P. Bhattacharjee   +2 more
semanticscholar   +1 more source

A patient‐derived orthotopic xenograft model unveils metastatic dynamics in head and neck squamous cell carcinoma

open access: yesThe FEBS Journal, EarlyView.
Metastasis in head and neck squamous cell carcinoma (HNSC) poses significant clinical challenges. This proof‐of‐concept study establishes patient‐derived orthotopic xenografts (PDOXs) as advanced models that closely replicate primary HNSC tumours, including local lymph node metastasis and the intricate cancer–stroma interaction.
Yuchen Bai   +5 more
wiley   +1 more source

Modeling the Rising Tails of Galaxy Rotation Curves [PDF]

open access: yesGalaxies, 2018
It is well known, but under-appreciated in astrophysical applications, that it is possible for gravity to take on a life of its own in the form of Weyl-curvature-only metrics (note that we are referring to the Weyl-only solutions of ordinary General Relativity; we are not considering Weyl conformal gravity or any other modified gravity theories), as ...
openaire   +2 more sources

Static State of a Black Hole Supported by Dark Matter

open access: yesUniverse, 2019
The possibility of an equilibrium state of a gravitating scalar field (describing ordinary matter) inside a black hole, compressed to the state of boson condensate, in balance with a longitudinal vector field (describing dark matter) from the outside, is
Boris E. Meierovich
doaj   +1 more source

The Luminous Convolution Model as an alternative to dark matter in spiral galaxies [PDF]

open access: yes, 2014
The Luminous Convolution Model (LCM) demonstrates that it is possible to predict the rotation curves of spiral galaxies directly from estimates of the luminous matter.
Ashley, A.   +8 more
core  

The isolated interacting galaxy pair NGC 5426/27 (Arp 271)

open access: yes, 2003
We present H alpha observations of the isolated interacting galaxy pair NGC 5426/27 using the scanning Fabry-Perot interferometer PUMA. The velocity field, various kinematical parameters and rotation curve for each galaxy were derived.
A. Bernal   +57 more
core   +2 more sources

Galactic rotation curve and spiral density wave parameters from 73 masers [PDF]

open access: yes, 2013
Based on kinematic data on masers with known trigonometric parallaxes and measurements of the velocities of HI clouds at tangential points in the inner Galaxy, we have refined the parameters of the Allen-Santillan model Galactic potential and constructed
V. Bobylev, A. Bajkova
semanticscholar   +1 more source

Winter‐active spiders (Clubiona) have a hyperactive antifreeze protein with a unique beta‐solenoid fold

open access: yesThe FEBS Journal, EarlyView.
Antifreeze proteins from winter‐active spiders were purified using their affinity for ice. After LC–MSMS characterization, corresponding transcripts were identified. The antifreeze protein folds as a β‐solenoid with a large flat ice‐binding site on one surface and can bind to ice crystals and prevent their growth at −4 °C.
Laurie A. Graham   +3 more
wiley   +1 more source

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