Results 91 to 100 of about 1,056,106 (302)

Homological descent for motivic homology theories [PDF]

Homology, Homotopy and Applications, 2014
We show that motivic homology, motivic Borel-Moore homology and higher Chow groups satisfy homological descent for hyperenvelopes, and l-hyperenvelopes after inverting l.
openaire   +3 more sources

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Drug resistance and molecular typing characteristics of Klebsiella pneumoniae in meat food and diarrhea samples in a local area

Shanghai yufang yixue
ObjectiveTo determine the drug sensitivity and molecular typing characteristics of Klebsiella pneumoniae isolated from meat and diarrhea samples in a local area.MethodsSeventy-one strains of K.pneumoniae were isolated from 118 meat food （chicken and pork）
QUE Fengxia, YUAN Jiachun, HAN Dongfang, LIU Chunfu, SONG Canlei, YE Yulong   +5 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Human versus Rat PRF on Collagen Membranes: A Pilot Study of Mineralization in Rat Calvaria Defect Model

Bioengineering
Platelet-rich fibrin, the coagulated plasma fraction of blood, is commonly used to support natural healing in clinical applications. The rat calvaria defect is a standardized model to study bone regeneration.
Karol Ali Apaza Alccayhuaman, Patrick Heimel, Stefan Tangl, Stefan Lettner, Carina Kampleitner, Layla Panahipour, Ulrike Kuchler, Reinhard Gruber   +7 more
doaj   +1 more source

The Non-Homologous Nature of Solar Diameter Variations

, 2005
We show in this paper that the changes of the solar diameter in response to variations of large scale magnetic fields and turbulence are not homologous.
Antia H. M., Gerard Thuillier, Linghuai Li, Pierre Demarque, Sabatino Sofia, Sarbani Basu   +5 more
core   +5 more sources

Modular Homology Characters [PDF]

Proceedings of the National Academy of Sciences, 1932
This paper gives definitions and some simple properties of homology characters modulo any integer preceded by a discussion of matrices modulo any integer.
openaire   +3 more sources

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

FEBS 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, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Nuclear and mitochondrial homologous recombination process to repair DSB by nucleases and helicases [PDF]

, 2019
Cells are continuously exposed to different sources of DNA damage agents that can compromise genome stability. Double-strand break (DSB) is one of the most cytotoxic lesions, so faithful repair of DSB is critical to ensure cell viability.
Bernal Muñoz, Manuel
core