Results 11 to 20 of about 1,038,640 (224)

Graph Theory Assisted Bit-to-Index-Combination Gray Coding for Generalized Index Modulation

open access: yesIEEE Transactions on Wireless Communications, 2020
Generalized index modulation (GIM) which implicitly conveys information by the activated indices is a promising technique for next-generation wireless networks. Due to the prohibitive challenge of bit-to-index combination (IC) mapping optimization, conventional GIM system obtains the bit-to-IC mapping table randomly, which may suffer from some ...
Xiao, Lixia   +4 more
openaire   +5 more sources

Gray solitary-wave solutions in nonlinear negative-index materials

open access: yesPhysical Review E, 2010
We predict the existence of gray (dark) solitary waves in negative-index materials on the basis of a derived higher-order nonlinear Schrödinger equation. The conditions for the formation of three cases of gray solitary waves and exact analytical expressions are presented.
Li, Penggang, Yang, Rongcao, Xu, Zhiyong
openaire   +5 more sources

Relationship Between Body Mass Index and Gray Matter Volume in 1,428 Healthy Individuals [PDF]

open access: yesObesity, 2008
Objective: To investigate any correlation between BMI and brain gray matter volume, we analyzed 1,428 healthy Japanese subjects by applying volumetric analysis and voxel‐based morphometry (VBM) using brain magnetic resonance (MR) imaging, which enables a global analysis of brain structure without a priori identification of a region of interest.Methods ...
Yasuyuki, Taki   +8 more
openaire   +4 more sources

Gray Matter Abnormalities of Orbitofrontal Cortex and Striatum in Drug-Naïve Adult Patients With Obsessive-Compulsive Disorder

open access: yesFrontiers in Psychiatry, 2021
Objective: This study examined whether obsessive-compulsive disorder (OCD) patients have gray matter abnormalities in regions related to executive function, and whether such abnormalities are associated with impaired executive function.Methods: Multiple ...
Zhang Bowen   +10 more
doaj   +1 more source

Body weight, egg production, and egg quality traits of gray, brown, and white varieties of Japanese quail (Coturnix coturnix japonica) in coastal climatic condition of Odisha [PDF]

open access: yesVeterinary World, 2016
Aim: The present study was conducted to evaluate the performance of gray, brown, and white varieties of Japanese quail (Coturnix coturnix japonica) with respect to body weight, egg production, and egg quality traits in the coastal climatic condition of ...
Jessy Bagh   +6 more
doaj   +1 more source

Brain structural changes and the development of interference control in children with ADHD: The predictive value of physical activity and body mass index

open access: yesNeuroImage: Clinical, 2022
Background: Children with ADHD face deficits in interference control due to abnormalities in brain structure. A low body mass index and high physical activity are factors promoting brain health and may have the potential to reduce ADHD-related cognitive ...
Sebastian Ludyga, Toru Ishihara
doaj   +1 more source

Brain morphological signatures for chronic pain. [PDF]

open access: yesPLoS ONE, 2011
Chronic pain can be understood not only as an altered functional state, but also as a consequence of neuronal plasticity. Here we use in vivo structural MRI to compare global, local, and architectural changes in gray matter properties in patients ...
Marwan N Baliki   +3 more
doaj   +1 more source

A Study on the Classification of Schizophrenia Based on Single Gray Matter Networks

open access: yesTaiyuan Ligong Daxue xuebao, 2021
In order to study the covariance of subtle differences in gray matter in schizophrenic patients, single subject brain network model was constructed by using voxel similarity index.
Yunxiao MA   +4 more
doaj   +1 more source

Breakfast staple types affect brain gray matter volume and cognitive function in healthy children. [PDF]

open access: yesPLoS ONE, 2010
Childhood diet is important for brain development. Furthermore, the quality of breakfast is thought to affect the cognitive functioning of well-nourished children.
Yasuyuki Taki   +6 more
doaj   +1 more source

Measuring the Efficiency and Productivity of Cement Companies in the Tehran Stock Exchange Using Data Envelopment Analysis and Malmquist Productivity Index in Gray Environment [PDF]

open access: yesمدیریت نوآوری و راهبردهای عملیاتی, 2021
Purpose: In this study, the grey data envelopment analysis approach and the Malmquist productivity index were used to measure the efficiency and productivity of companies in the Tehran Stock Exchange cement industry.
Farjam Kayedppour   +3 more
doaj   +1 more source

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