Results 71 to 80 of about 23,521 (333)

The conserved AAA ATPase PCH-2 distributes its regulation of meiotic prophase events through multiple meiotic HORMADs in C. elegans.

PLoS Genetics, 2023
During meiotic prophase, the essential events of homolog pairing, synapsis, and recombination are coordinated with meiotic progression to promote fidelity and prevent aneuploidy.
Anna E Russo, Stefani Giacopazzi, Alison Deshong, Malaika Menon, Valery Ortiz, Kaori M Ego, Kevin D Corbett, Needhi Bhalla   +7 more
doaj   +1 more source

Aerobic Exercise Induces Alternative Splicing of Neurexins in Frontal Cortex

Journal of Functional Morphology and Kinesiology, 2021
Aerobic exercise (AE) is known to produce beneficial effects on brain health by improving plasticity, connectivity, and cognitive functions, but the underlying molecular mechanisms are still limited.
Elisa Innocenzi, Ida Cariati, Emanuela De Domenico, Erika Tiberi, Giovanna D’Arcangelo, Veronica Verdile, Maria Paola Paronetto, Virginia Tancredi, Marco Barchi, Pellegrino Rossi, Claudio Sette, Paola Grimaldi   +11 more
doaj   +1 more source

Ultrastructural analysis of chromatin in meiosis I plus II of rye (Secale cereale L.) [PDF]

, 2004
Scanning electron microscopy (SEM) proves to be an appropriate technique for imaging chromatin organization in meiosis I and II of rye (Secale cereale) down to a resolution of a few nanometers.
Herrmann, Reinhold G., Hohmann, U., Wanner, Gerhard, Zoller, J. F.   +3 more
core   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Kinetic analysis of synaptonemal complex dynamics during meiosis of yeast Saccharomyces cerevisiae reveals biphasic growth and abortive disassembly

Frontiers in Cell and Developmental Biology, 2023
The synaptonemal complex (SC) is a dynamic structure formed between chromosomes during meiosis which stabilizes and supports many essential meiotic processes such as pairing and recombination. In budding yeast, Zip1 is a functionally conserved element of
Michael G. Pollard, Beth Rockmill, Ashwini Oke, Carol M. Anderson, Jennifer C. Fung   +4 more
doaj   +1 more source

Telomeres cluster de novo before the initiation of synapsis: a three-dimensional spatial analysis of telomere positions before and during meiotic prophase. [PDF]

, 1997
We have analyzed the progressive changes in the spatial distribution of telomeres during meiosis using three-dimensional, high resolution fluorescence microscopy.
Agard, DA, Bass, HW, Cande, WZ, Marshall, WF, Sedat, JW   +4 more
core  

A neural mechanism for binaural pitch perception via ghost stochastic resonance

, 2004
We present a physiologically plausible binaural mechanism for the perception of the pitch of complex sounds via ghost stochastic resonance. In this scheme, two neurons are driven by noise and different periodic signal each (with frequencies f1=kf0 and f2=
Cariani P. A., Cariani P. A., Jordi García-Ojalvo, Pablo Balenzuela   +3 more
core   +1 more source

Gated rotation mechanism of site-specific recombination by ϕC31 integrase [PDF]

, 2012
Integrases, such as that of the Streptomyces temperate bacteriophage ϕC31, promote site-specific recombination between DNA sequences in the bacteriophage and bacterial genomes to integrate or excise the phage DNA.
A. R. McEwan, Brown, D. E. Buck, Dhar, Dhar, F. J. Olorunniji, Ghosh, Grainge, Grindley, Heichman, Kanaar, Khaleel, Kilbride, M. C. M. Smith, Rowland, S. D. Colloms, S. J. Rosser, Smith, Smith, Smith, Stark, Stark, Stark, Stark, Stark, Thorpe, W. M. Stark, Wasserman, Yuan   +28 more
core   +1 more source

Biomaterial Strategies for Targeted Intracellular Delivery to Phagocytes

Advanced Functional Materials, EarlyView.
Phagocytes are essential to a functional immune system, and their behavior defines disease outcomes. Engineered particles offer a strategic opportunity to target phagocytes, harnessing inflammatory modulation in disease. By tuning features like size, shape, and surface, these systems can modulate immune responses and improve targeted treatment for a ...
Kaitlyn E. Woodworth, Neal I. Callaghan, Locke Davenport Huyer   +2 more
wiley   +1 more source

Matefin/SUN-1 phosphorylation is part of a surveillance mechanism to coordinate chromosome synapsis and recombination with meiotic progression and chromosome movement.

PLoS Genetics, 2013
Faithful chromosome segregation during meiosis I depends on the establishment of a crossover between homologous chromosomes. This requires induction of DNA double-strand breaks (DSBs), alignment of homologs, homolog association by synapsis, and repair of
Alexander Woglar, Anahita Daryabeigi, Adele Adamo, Cornelia Habacher, Thomas Machacek, Adriana La Volpe, Verena Jantsch   +6 more
doaj   +1 more source