Results 101 to 110 of about 8,367,182 (364)

Circadian Rhythm of Contrast Sensitivity Is Regulated by a Dopamine–Neuronal PAS-Domain Protein 2–Adenylyl Cyclase 1 Signaling Pathway in Retinal Ganglion Cells

Journal of Neuroscience, 2013
Spatial variation in light intensity, called spatial contrast, comprises much of the visual information perceived by mammals, and the relative ability to detect contrast is referred to as contrast sensitivity (Purves et al., 2012).
Christopher K. Hwang, S. S. Chaurasia, Chad R. Jackson, G. Chan, D. Storm, P. Iuvone   +5 more
semanticscholar   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

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): 091110
Nitrogen-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

Magnetic Particle Imaging tracks the long-term fate of in vivo neural cell implants with high image contrast. [PDF]

, 2015
We demonstrate that Magnetic Particle Imaging (MPI) enables monitoring of cellular grafts with high contrast, sensitivity, and quantitativeness. MPI directly detects the intense magnetization of iron-oxide tracers using low-frequency magnetic fields. MPI
Conolly, Steven, Conway, Anthony, Goodwill, Patrick, Saritas, Emine, SCHAFFER, David, Vazin, Tandis, Verma, Aradhana, Zheng, Bo   +7 more
core   +1 more source

Clinical applications of next‐generation sequencing‐based ctDNA analyses in breast cancer: defining treatment targets and dynamic changes during disease progression

Molecular Oncology, EarlyView.
Circulating tumor DNA (ctDNA) offers a possibility for different applications in early and late stage breast cancer management. In early breast cancer tumor informed approaches are increasingly used for detecting molecular residual disease (MRD) and early recurrence. In advanced stage, ctDNA provides a possibility for monitoring disease progression and
Eva Valentina Klocker, Samantha Hasenleithner, Rupert Bartsch, Simon P. Gampenrieder, Daniel Egle, Christian F. Singer, Gabriel Rinnerthaler, Michael Hubalek, Katja Schmitz, Zsuzsanna Bago‐Horvath, Andreas Petzer, Sonja Heibl, Ellen Heitzer, Marija Balic, Michael Gnant   +14 more
wiley   +1 more source

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  

Visual contrast sensitivity in tonic-clonic epileptic patients [PDF]

, 2011
We measured the effects of epilepsy on visual contrast sensitivity to linear and vertical sine-wave gratings. Sixteen female adults, aged 21 to 50 years, comprised the sample in this study, including eight adults with generalized tonic-clonic seizure ...
ALENCAR, Caroline C. G., BEZERRA, Paloma C., MOUSINHO, Sandra R., SANTOS, Natanael A. dos   +3 more
core   +1 more source

Circulating tumor cells: advancing personalized therapy in small cell lung cancer patients

Molecular Oncology, EarlyView.
Small cell lung cancer (SCLC) is an aggressive form of lung cancer that spreads rapidly to secondary sites such as the brain and liver. Cancer cells circulating in the blood, “circulating tumor cells” (CTCs), have demonstrated prognostic value in SCLC, and evaluating biomarkers on CTCs could guide treatment decisions such as for PARP inhibitors ...
Prajwol Shrestha, Steven Kao, Veronica K. Cheung, Wendy A. Cooper, Nico van Zandwijk, John E. J. Rasko, Dannel Yeo   +6 more
wiley   +1 more source

Evaluation of Color Contrast Sensitivity in Dyslexic Children

مجله پژوهش در علوم توانبخشی, 2014
Introduction: Although there is a consensus about the importance of vision perception in reading, its role in development of dyslexia is highly debated. In order to understand the relationship between dyslexia and disorders of visual perception, we have ...
Alireza Mohamadi, Ebrahim Jafarzadehpur
doaj   +1 more source