Results 91 to 100 of about 3,277,772 (345)
FEBS Letters, Volume 599, Issue 7, Page 971-988, April 2025.We present the first solution structure of the Ca2+‐depleted LETM1 F‐EF‐hand through a D676A/N678A Ca2+ binding‐deficient mutant, revealing a closed hydrophobic cleft caused by a unique F1‐helix pivot. The apo LETM1 F‐EF‐hand exhibits regiospecific hot and cold unfolding, sensitivity to physiological pH changes and potential for promiscuous heterotypic
Qi‐Tong Lin +2 more
wiley +1 more source
Balancing Robustness and Sensitivity using Feature Contrastive Learning [PDF]
arXiv, 2021 It is generally believed that robust training of extremely large networks is critical to their success in real-world applications. However, when taken to the extreme, methods that promote robustness can hurt the model's sensitivity to rare or underrepresented patterns.
arxiv
Can Centre Surround Model Explain the Enhancement of Visual Perception through Stochastic Resonance? [PDF]
arXiv, 2010 We demonstrate the ability of centre surround model for simulating the enhancement of contrast sensitivity through stochastic resonance observed in psychophysical experiments. We also show that this model could be used to simulate the contrast sensitivity function through stochastic resonance.
arxiv
Infrared Vertical External Cavity Surface Emitting Laser Threshold Magnetometer [PDF]
Appl. Phys. Lett. 26 February 2024; 124 (9): 091110Nitrogen-vacancy (NV) centers have considerable promise as high sensitivity magnetometers, however are commonly limited by inefficient collection and low contrasts. Laser threshold magnetometry (LTM) enables efficient collection and high contrasts, providing a path towards higher sensitivity magnetometry.
arxiv +1 more source
Spatial contrast sensitivity of birds [PDF]
Journal of Comparative Physiology A, 2006 Contrast sensitivity (CS) is the ability of the observer to discriminate between adjacent stimuli on the basis of their differences in relative luminosity (contrast) rather than their absolute luminances. In previous studies, using a narrow range of species, birds have been reported to have low contrast detection thresholds relative to mammals and ...
Mimi M. Ghim, William Hodos
openaire +3 more sources
Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones
FEBS Letters, Volume 599, Issue 9, Page 1269-1284, May 2025.Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley +1 more source
Improved Contrast Sensitivity DVS and its Application to Event-Driven Stereo Vision [PDF]
, 2013 This paper presents a new DVS sensor with one order of magnitude improved contrast sensitivity over previous reported DVSs. This sensor has been applied to a bio-inspired event-based binocular system that performs 3D event-driven reconstruction of a ...
Benosman, Ryad B. +5 more
core
The critical sensor: a new type of evanescent wave immunosensor [PDF]
, 1996 A new planar waveguide immunosensor has been developed in which adsorption at a surface, changing the refractive index contrast, is measured. In this ¿critical¿ sensor the change in the effective refractive index contrast is transducted to a shift of the
Borreman, A. +3 more
core +3 more sources
No sensitivity to functional forms in the Rosenzweig-MacArthur model with strong environmental stochasticity [PDF]
arXiv, 2022 The classic Rosenzweig-MacArthur predator-prey model has been shown to exhibit, like other coupled nonlinear ordinary differential equations (ODEs) from ecology, worrying sensitivity to model structure. This sensitivity manifests as markedly different community dynamics arising from saturating functional responses with nearly identical shapes but ...
arxiv
FEBS Letters, Volume 599, Issue 7, Page 1006-1028, April 2025.This study explores the distinct molecular mechanisms underlying Lynch syndrome‐associated and sporadic colorectal cancer (CRC). By highlighting the therapeutic potential of targeting the PI3K‐Akt pathway in Lynch syndrome‐associated CRC and the Wnt pathway in sporadic CRC, the findings open avenues for personalised treatment strategies, aiming to ...
May J. Krause +2 more
wiley +1 more source