Results 81 to 90 of about 562,958 (314)

Future robotic exploration using honeybee search strategy: Example search for caves on Mars [PDF]

open access: yes, 2011
Autonomous control has an increasing role in Earth and Space based applications. High level autonomy can greatly improve planetary exploration and is, in many cases, essential.
Kisdi, Áron   +3 more
core   +1 more source

Paternalism on Mars [PDF]

open access: yesJournal of Medical Ethics, 2016
In the mid 21st century, humans finally established a small community on Mars. The Martian colony grew slowly over its first 50 years. There were substantial technical challenges to living in the artificial biospheres. Early colonists had to accept significant restrictions because of the harshness of the environment, and the limited shared physical ...
openaire   +2 more sources

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

open access: yesFEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa   +3 more
wiley   +1 more source

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

open access: yesFEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga   +3 more
wiley   +1 more source

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

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

Cafés littéraires. Rencontre avec Kettly Mars, poète et romancière haïtienne

open access: yes, 2010
Kettly Mars raconte son cheminement vers l\u27écriture : de la recherche des racines, de "la cour" (lakou) à Kasalé, son premier romanl\u27écriture est thérapie.
Mars, Kettly
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

Analysis of Mars data using Arcobjects and Modelbuilder

open access: yes, 2007
Geographic Information Systems (GIS) are powerful tools for integration of different planetary datasets, e.g. images, spectral data, and digital terrain models which are typically given in different formats like vector and raster.
Saiger, Peter   +5 more
core  

Limits of Life and the Habitability of Mars: The ESA Space Experiment BIOMEX on the ISS

open access: yesAstrobiology, 2019
BIOMEX (BIOlogy and Mars EXperiment) is an ESA/Roscosmos space exposure experiment housed within the exposure facility EXPOSE-R2 outside the Zvezda module on the International Space Station (ISS).
J. D. de Vera   +55 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy