Results 61 to 70 of about 5,435,041 (280)

Potential Influence of Sagittal Parameters in the Pathogenesis of Patients With the Thoracic Ossification of the Ligamentum Flavum

open access: yesOrthopaedic Surgery
Purpose There are many causes of thoracic ossification of the ligamentum flavum (TOLF), of which mechanical stress factors have gained increasing attention.
Zixuan Xu   +12 more
doaj   +1 more source

Theoretical simulation of the infrared signature of mechanically stressed polymer solids

open access: yesBeilstein Journal of Organic Chemistry, 2017
Mechanical stress leads to deformation of strands in polymer solids, including elongation of covalent bonds and widening of bond angles, which changes the infrared spectrum.
Matthew S. Sammon   +2 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

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

Neural Mechanisms of Stress Resilience and Vulnerability [PDF]

open access: yesNeuron, 2012
Exposure to stressful events can be differently perceived by individuals and can have persistent sequelae depending on the level of stress resilience or vulnerability of each person. The neural processes that underlie such clinically and socially important differences reside in the anatomical, functional, and molecular connectivity of the brain. Recent
Franklin Tamara B   +2 more
openaire   +4 more sources

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

The Stress Mechanism of Zinc on the Wheat

open access: yesChemical Engineering Transactions, 2017
To investigate the stress mechanism of zinc on the wheat, different concentrations of zinc were used to treat wheat, and the ultrastructure of mesophyll cells of wheat was observed by transmission electron microscope (TEM). The results showed that at the tillering stage, the number of chloroplast decreased, and the thylakoid of chloroplast of mesophyll
Su Z.   +8 more
openaire   +2 more sources

Relação entre rigidez de fixador externo e quantidade de pinos: análise computacional por elementos finitos Relationship between rigidity of external fixator and number of pins: computer analysis using finite elements

open access: yesRevista Brasileira de Ortopedia, 2012
OBJETIVO: Analisar a rigidez da montagem de um fixador externo tipo plataforma, segundo diferentes números de pinos em cada clamp. MÉTODOS: Realizou-se simulação computacional do fixador externo dinâmico modelo Cromus tamanho grande (Baumer S.A.) por ...
Marcelo Back Sternick   +3 more
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Electromechanical Analysis of the Medium Voltage Earthing Switch due to Short-Time and Peak Withstand Current Test

open access: yesEnergies, 2019
The chosen electrical equipment, i.e., the earthing switch has its application in marine switchgear. In this paper, the reduction of dimensions is considered with the purpose of making it more energy efficient in terms of onboard application.
Maja Krčum   +2 more
doaj   +1 more source

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