Results 101 to 110 of about 94,408 (300)

Role of visual and non-visual cues in constructing a rotation-invariant representation of heading in parietal cortex

eLife, 2015
As we navigate through the world, eye and head movements add rotational velocity patterns to the retinal image. When such rotations accompany observer translation, the rotational velocity patterns must be discounted to accurately perceive heading.
Adhira Sunkara, Gregory C DeAngelis, Dora E Angelaki   +2 more
doaj   +1 more source

Contrast-Independent Biologically Inspired Motion Detection

, 2011
Babies B, Lindemann JP, Egelhaaf M, Möller R. Contrast-Independent Biologically Inspired Motion Detection. Sensors. 2011;11(12):3303-3326.Optic flow, i.e., retinal image movement resulting from ego-motion, is a crucial source of information used for ...
Lindemann, Jens Peter ; https://orcid.org/, Egelhaaf, Martin ; https://orcid.org/, Martin Egelhaaf, Jens Peter Lindemann, Ralf Möller, Birthe Babies, Möller, Ralf ; https://orcid.org/, Babies, Birthe   +7 more
core   +2 more sources

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Combined optic-flow and stereo-based navigation of urban canyons for a UAV

, 2005
We present a novel vision-based technique for\ud navigating an Unmanned Aerial Vehicle (UAV) through urban\ud canyons. Our technique relies on both optic flow and stereo\ud vision information. We show that the combination of stereo and optic-flow (stereo-
Roberts, Jonathan M., P. Corke, Corke, Peter, G.S. Sukhatme, Usher, Kane, J. Roberts, Hrabar, Stefan, Sukhatme, Gaurav, S. Hrabar, K. Usher   +9 more
core   +1 more source

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

FEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay, Junjie Xu, Josep Rizo   +2 more
wiley   +1 more source

Dielectric flow sensing in resin transfer moulding of carbon fibre reinforced composites. [PDF]

, 2000
An in situ dielectric technique for sensing flow is outlined and shown to be suitable for use in moulding of composites from liquid resins containing continuous conducting fibres. This work builds upon the recent development of a sensor for monitoring
Skordos, Alexandros A., Partridge, Ivana K.   +1 more
core   +1 more source

Retinal vs head-centered optic flow.

, 2022
Optic flow patterns (down-sampled) for a sequence of 5 video frames from S3 Video, altered for visibility in print. Head centered flow shows optic flow in the reference frame of the head mounted “world” camera, and represents optic flow free from the ...
Jonathan Samir Matthis (3312639), Kathryn L. Bonnen (12119874), Mary M. Hayhoe (5265670), Karl S. Muller (7407911)   +3 more
core   +1 more source

Evaluating the involvement of autolysosomes in the nuclear translocation of fluorescent proteins

FEBS Open Bio, EarlyView.
Endogenously expressed fluorescent proteins can be degraded by autophagy and transported to cell nuclei via the nuclear pore complex. But in some cell lines, for example, HeLa cells which are positive for immunoreactivity of a receptor ligand, such as UCN I, in cell nuclei, fusion of autolysosome with the nuclear envelope is involved in the nuclear ...
Keiichi Ikeda
wiley   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source