Results 71 to 80 of about 1,827,232 (257)

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

RF-Assisted Uncertainty Cone Reduction in Free-Space Optical Inter-Satellite Links

IEEE Open Journal of the Communications Society
One of the space communications industry’s current focuses is developing high-throughput communication terminals for satellite-to-satellite communication links.
Elena Fernandez-Nino, Juan A. Fraire, Adriano Camps, Joan A. Ruiz-De-Azua   +3 more
doaj   +1 more source

The Pointing System of the Herschel Space Observatory. Description, Calibration, Performance and Improvements

, 2014
We present the activities carried out to calibrate and characterise the performance of the elements of attitude control and measurement on board the Herschel spacecraft.
Altieri, Bruno, Aussel, Hervé, Feuchtgruber, Helmut, Group, The Herschel Pointing Working, Klaas, Ulrich, Linz, Hendrik, Lutz, Dieter, Marston, Anthony, Merín, Bruno, Müller, Thomas, Nielbock, Markus, Oort, Marc, Pilbratt, Göran, Schmidt, Micha, Stephenson, Craig, Sánchez-Portal, Miguel, Tuttlebee, Mark   +16 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Data from ManyDogs 1

Journal of Open Psychology Data
The ManyDogs 1 study is the first multi-site collaborative study of dogs’ responses to human pointing. It addressed whether dogs perceive the gesture as socially communicative and are therefore more likely to follow the point when it is paired with ...
ManyDogs Project, Julia Espinosa, Elizabeth Hare, Daniela Alberghina, Bryan Mitchel Perez Valverde, Jeffrey R. Stevens   +5 more
doaj   +1 more source

Lyot-based Ultra-Fine Pointing Control System for Phase Mask Coronagraphs

, 2013
High performance coronagraphic imaging at small inner working angle requires efficient control of low order aberrations. The absence of accurate pointing control at small separation not only degrades coronagraph starlight rejection but also increases the
Baudoz, Pierre, Clergeon, Christophe, Guyon, Olivier, Martinache, Frantz, Matsuo, Taro, Singh, Garima   +5 more
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Inside the Resource: Interpreting is Pointing at Things [PDF]

, 2013
We preserve the places of the past for a very specific reason: they are places. They are physical manifestations of the past, either landscapes where that past was played out or the remnants of the people who made that past happen.That was clear to me ...
Rudy, John M.
core   +1 more source

SVOM pointing strategy: how to optimize the redshift measurements?

, 2008
The Sino-French SVOM mission (Space-based multi-band astronomical Variable Objects Monitor) has been designed to detect all known types of gamma-ray bursts (GRBs) and to provide fast and reliable GRB positions.
B. Cordier, David Palmer, Ed Fenimore, F. Desclaux, J. Foliard, M. Galassi, S. Schanne   +6 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source