Results 31 to 40 of about 890,746 (314)

Effect of Sintering Temperature and Applied Load on Anode-Supported Electrodes for SOFC Application

open access: yesEnergies, 2016
Anode-supported cells are prepared by a sequence of hot pressing and co-sintering processes for solid oxide fuel cell (SOFC) applications. Commercially available porous anode tape (NiO/YSZ = 50 wt %/50 wt %), anode tape (NiO/YSZ = 30 wt %/70 wt %), and ...
Xuan-Vien Nguyen   +8 more
doaj   +1 more source

Insights Into the Helical Shape Complex of Helicobacter pylori

open access: yesFrontiers in Microbiology, 2022
One important factor that promotes the colonization of the upper digestive system of the human pathogen Helicobacter pylori is its helical cell shape. The bacteria cell shape is predominantly defined by its peptidoglycan cell wall. In rod-shaped species,
Sven Holtrup   +8 more
doaj   +1 more source

Cells Dynamically Adapt to Surface Geometry by Remodeling Their Focal Adhesions and Actin Cytoskeleton

open access: yesFrontiers in Cell and Developmental Biology, 2022
Cells probe their environment and adapt their shape accordingly via the organization of focal adhesions and the actin cytoskeleton. In an earlier publication, we described the relationship between cell shape and physiology, for example, shape-induced ...
Aysegul Dede Eren   +9 more
doaj   +1 more source

A torsion test for the study of the large deformation recovery of shape memory polymers [PDF]

open access: yes, 2011
A torsion device was designed and built for testing the shape fixity and shape recovery of shape memory polymers at large deformation. A simple thermal chamber was used to regulate the thermal environment during testing and a CCD camera was used for ...
GILORMINI, Pierre   +11 more
core   +1 more source

Shaping the T cell repertoire [PDF]

open access: yesThe Journal of Immunology, 2005
Today immunologists are well aware of positive and negative selection of developing T cells. This was very different almost three decades ago when MHC-restricted Ag recognition by T cells represented an enormous puzzle in the absence of data on the molecular nature of Ag recognition by T cells ...
openaire   +5 more sources

The Shaping of the T Cell Repertoire [PDF]

open access: yesImmunity, 2001
By combining a TCRbeta transgene with a TCRalpha minilocus comprised of a single V and two J gene segments, we engineered a mouse line exhibiting ample but focused TCR diversity, restricted to CDR3alpha. Using single-cell PCR and high-throughput sequencing, we have exploited this system to scrutinize T cell repertoire selection and evolution.
Correia-Neves, Margarida   +3 more
openaire   +2 more sources

Cell Shape: Taking the Heat [PDF]

open access: yesCurrent Biology, 2008
Preservation of cell architecture under physically stressful conditions is a basic requirement for many biological processes and is critical for mechanosensory systems built to translate subtle changes in cell shape into changes in organism behaviour. A new study reveals how an extracellular protein--Spam--helps mechanosensory organs in the fruit fly ...
Kunda, Patricia   +2 more
openaire   +2 more sources

Essential role of the endocytic site-associated protein Ecm25 in stress-induced cell elongation

open access: yesCell Reports, 2021
Summary: How cells adopt a different morphology to cope with stress is not well understood. Here, we show that budding yeast Ecm25 associates with polarized endocytic sites and interacts with the polarity regulator Cdc42 and several late-stage endocytic ...
Xudong Duan   +8 more
doaj   +1 more source

Secreted retropepsin-like enzymes are essential for stress tolerance and biofilm formation in Pseudomonas aeruginosa

open access: yesmBio
Proteases regulate important biological functions. Here, we present the structural and functional characterization of three previously uncharacterized aspartic proteases in Pseudomonas aeruginosa. We show that these proteases have structural hallmarks of
Justin D. Lormand   +8 more
doaj   +1 more source

Distinct regions of H. pylori’s bactofilin CcmA regulate protein–protein interactions to control helical cell shape

open access: yeseLife, 2022
The helical shape of Helicobacter pylori cells promotes robust stomach colonization; however, how the helical shape of H. pylori cells is determined is unresolved.
Sophie R Sichel   +2 more
doaj   +1 more source

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