Results 91 to 100 of about 323,025 (296)

Learning Motion Predictors for Smart Wheelchair using Autoregressive Sparse Gaussian Process

, 2018
Constructing a smart wheelchair on a commercially available powered wheelchair (PWC) platform avoids a host of seating, mechanical design and reliability issues but requires methods of predicting and controlling the motion of a device never intended for ...
Chen, Tian Qi, Fan, Zicong, Li, Jingchun, Meng, Lili, Mitchell, Ian M.   +4 more
core   +1 more source

Seeing chips : analog VLSI circuits for computer vision [PDF]

, 1989
Vision is simple. We open our eyes and, instantly, the world surrounding us is perceived in all its splendor. Yet Artificial Intelligence has been trying with very limited success for over 20 years to endow machines with similar abilities.
Christof Koch, Glasser L.A., Hopfield J.J., Hutchinson J., Sage J.P.   +4 more
core   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Prevalence and intensity of pain during diagnostic hysteroscopy in women attending an infertility clinic: analysis of 489 cases

Einstein (São Paulo), 2019
Objective To investigate the prevalence and intensity of pain perception during diagnostic hysteroscopy in women and potential related factors. Methods A total of 489 women were investigated at an infertility clinic.
Andréa Pegoraro, Marcelo Ettruri Santos, Jean Tetsuo Takamori, Waldemar de Almeida Pereira de Carvalho, Renato de Oliveira, Caio Parente Barbosa, Ângela van Nimwegen   +6 more
doaj   +2 more sources

Metamaterials for light rays: ray optics without wave-optical analog in the ray-optics limit [PDF]

, 2009
Volumes of sub-wavelength electromagnetic elements can act like homogeneous materials: metamaterials. In analogy, sheets of optical elements such as prisms can act ray-optically like homogeneous sheet materials.
, Alasdair C Hamilton, Berry M, Berry M V, Courant R, Courtial J, Courtial J, Hamilton A C, Hamilton A C Sundar B Nelson J Courtial J, Johannes Courtial, Landau L D, Leonhardt U, Sandstrom R, Sundar B Hamilton A Courtial J   +13 more
core   +2 more sources

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp, Ludwig Karrasch, Helena Breitenstein, Andreas Straube, Katharina Kamm   +4 more
wiley   +1 more source

The SAGA Survey: I. Satellite Galaxy Populations Around Eight Milky Way Analogs

, 2017
We present the survey strategy and early results of the "Satellites Around Galactic Analogs" (SAGA) Survey. The SAGA Survey's goal is to measure the distribution of satellite galaxies around 100 systems analogous to the Milky Way down to the luminosity ...
Bernstein, Rebecca, Geha, Marla, Hoyle, Ben, Lu, Yu, Mao, Yao-Yuan, Marchi, Sebastian, Marshall, Phil J., Munoz, Ricardo, Tollerud, Erik J., Wechsler, Risa H., Weiner, Benjamin   +10 more
core   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento, Daniela F. Santos, Tuane C. R. G. Vieira, Tiago F. Outeiro   +3 more
wiley   +1 more source

A cross-sectional study on the association of level of Vitamin D with severity of fibromyalgia syndrome in a tertiary care hospital, Kolkata

Asian Journal of Medical Sciences
Background: Fibromyalgia (FM) is a chronic disorder characterized by widespread pain associated with fatigue, stiffness, sleep disturbance, cognitive dysfunction, anxiety, and depression. The role of Vitamin D in the pathophysiology of FM is poorly known.
Mausumi Sen , Sulagna Das , Santanu Sen , Nabanita Baidya Biswas , Tanmoy Naskar , Swapan Kumar Mishra , Swati Bhattacharyya   +6 more
doaj   +1 more source

On Real-Time AER 2-D Convolutions Hardware for Neuromorphic Spike-Based Cortical Processing [PDF]

, 2008
In this paper, a chip that performs real-time image convolutions with programmable kernels of arbitrary shape is presented. The chip is a first experimental prototype of reduced size to validate the implemented circuits and system level techniques ...
Acosta Jiménez, Antonio José, Civit Balcells, Antón, Jiménez Moreno, Gabriel, Linares Barranco, Alejandro, Linares Barranco, Bernabé, Pérez Carrasco, José Antonio, Serrano Gotarredona, Clara, Serrano Gotarredona, María Teresa, Serrano Gotarredona, Rafael   +8 more
core