Results 111 to 120 of about 18,252,443 (306)

Les automatismes dans l’activité : pour une réhabilitation et un bon usage

Activités, 2005
Automatisms have a large place in the activity, but often they are put forward for their negative consequences, in particular for the role they play in the production of errors.
Jacques Leplat
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Origin of Blazar Activity

, 1999
Models of Blazars based on the propagation of finite discontinuities or fronts in the Poynting flux jet from the innermost regions of an accretion disk around a black hole are discussed. Such fronts may be responsible for short time-scale (from less than
Romanova, M. M.
core   +1 more source

L’action située dans le développement de l’activité

Activités, 2004
After briefly attempting to describe situated action and distributed cognition, we examine their contributions from the point of view of activity theories and more specifically based on the relations between the functioning and development of activity ...
Pascal Béguin, Yves Clot
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

The Evolution of an Aurora [PDF]

In this activity students use web-based data from the Image for Magnetopause-to-Auroral Global Exploration (IMAGE) satellite to study the evolution of an aurora and its changing shapes during the course of a magnetic storm.
Sten Odenwald
core  

Food, nutrition and sustainability education in Australian primary schools: a cross-sectional analysis of teacher perspectives and practices

Archives of Public Health
Background Healthy eating patterns from sustainable food systems are crucial for population and planetary health. Primary schools are opportune settings for teaching children about food, nutrition and sustainability (FNS) though little is known about the
Jessica V Kempler, Claire Margerison, Janandani Nanayakkara, Alison Booth   +3 more
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Correction: Characterizing children’s eating patterns: does the choice of eating occasion definition matter?

International Journal of Behavioral Nutrition and Physical Activity, 2023
Rebecca M. Leech, Alison C. Spence, Kathleen E. Lacy, Miaobing Zheng, Anna Timperio, Sarah A. McNaughton   +5 more
doaj   +1 more source