Results 121 to 130 of about 9,284,227 (272)

Stellar chromospheres [PDF]

open access: yes
Developments in the understanding and use of chromospheric diagnostics are discussed with emphasis on the following aspects: (1) trends emerging from semiempirical models of single stars; (2) the validity of claims that theoretical models of ...
Linsky, J. L.
core   +1 more source

Association between CA 15‑3 and progression of interstitial lung disease in a case of coexisting systemic sclerosis and recurrent breast cancer: A case report. [PDF]

open access: yesMol Clin Oncol, 2022
Ohara M   +12 more
europepmc   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS 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

Davisite, CaScAlSiO_6, a new pyroxene from the Allende meteorite [PDF]

open access: yes, 2009
Davisite, ideally CaScAlSiO_6, is a new member of the Ca clinopyroxene group, where Sc^(3+) is dominant in the M1 site. It occurs as micro-sized crystals along with perovskite and spinel in an ultra-refractory inclusion from the Allende meteorite.
Ma, Chi, Rossman, George R.
core  

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

The Goss Farm Site (41FN12) on Bois d’Arc Creek, Fannin County, Texas [PDF]

open access: yes, 2015
The Goss Farm site (41FN12) is an ancestral Caddo settlement on an alluvial landform on the west side of Bois d’Arc Creek near its confluence with the Red River.
Perttula, Timothy K.
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS 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

Thiol-mediated electrochemical sensor for the breast cancer biomarker CA 15-3

open access: yesFrontiers in Sensors
Cancer antigen 15-3 (CA 15-3), a circulating fragment of the MUC1 glycoprotein, is widely used for monitoring breast cancer progression. In this study, we report a label-free, receptor-free electrochemical detection strategy based on adsorption-mediated ...
Nastaran Ghaffari, Priscilla Baker
doaj   +1 more source

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