Results 51 to 60 of about 2,434,328 (286)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Axially deformed skyrmions in a constrained variational approach

open access: yesPhysics Letters B, 1987
Abstract We study the rotational spectrum of axially deformed skyrmions by constraining the radius and the quadrupole moment of the baryon density. The results are compared to a generalized scaling approximation used previously. For purely radial shape changes of the skyrmion the two methods give the same results, while for deformed field ...
J. Wambach, H.W. Wyld, H.M. Sommermann
openaire   +1 more source

Axial field permanent magnet DC motor with powder iron armature

open access: yes, 2007
The paper describes a double-gap axial field permanent magnet (PM) dc motor whose double-layer armature wave winding is constructed of copper strips.
Mohammad, Mohammad T.   +1 more
core   +1 more source

Mechanical Characteristics for Rocks under Different Paths and Unloading Rates under Confining Pressures

open access: yesShock and Vibration, 2015
To investigate mechanical characteristics of rocks under different unloading conditions, triaxial tests are carried out with initial confining pressures of 10, 20, and 30 MPa and unloading rates of 0.05~1 MPa/s in three stress paths.
Bing Dai   +3 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Large Tip Clearance Flows in High Pressure Stages of Axial Compressors [PDF]

open access: yes, 2009
This thesis investigates over tip leakage where the tip clearance is large. In the high pressure stages of axial compressors the tip clearance can be typically 6% of span and the total blockage due to tip clearance can consume in excess of forty percent ...
WILLIAMS, RICHARD,JAMES
core  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Variation of axial and oblique astigmatism with accommodation across the visual field

open access: yesJournal of Vision, 2017
In this study we investigated the impact of accommodation on axial and oblique astigmatism along 12 meridians of the central 30° of visual field and explored the compensation of corneal first-surface astigmatism by the remainder of the eye's optical system.
Liu, Tao, Thibos, Larry N.
openaire   +2 more sources

Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage [PDF]

open access: yes, 2013
Based on the requirement of energy consumption level and weight and dimension restriction, compact axial machines are highly demanded in many industrial fields.
BAKIR, Farid   +2 more
core  

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