Results 111 to 120 of about 143,397 (296)

On Subsequence Sums of a Zero-sum Free Sequence

open access: yes, 2008
Let G be a finite abelian group with exponent m, and let S be a sequence of elements in G. Let f(S) denote the number of elements in G which can be expressed as the sum over a nonempty subsequence of S.
Fang Sun
core  

Performance Analysis of Precoding Based on Massive MIMO System

open access: yesMATEC Web of Conferences, 2015
In order to improve the system performance, the authors consider a single-cell multiuser Massive MIMO downlink time-division duplex (TDD) system for the imperfect channel state information (CSI).
Li Yi, Wang Junxuan, Gao Zhenzhen
doaj   +1 more source

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano   +11 more
wiley   +1 more source

Two Zero-Sum Problems and Multiple Properties

open access: yes, 2000
In this paper we consider the following open problems: Conjecture0.1.Let S be a sequence of 3n−3 elements in Cn⊕Cn. If S contains no nonempty zero-sum subsequence of length not exceeding n, then S consists of three distinct elements, each appearing n−1 ...
Gao, W.D
core   +1 more source

On the index conjecture in zero-sum theory: Singular case

open access: yes, 2018
Let [Formula: see text] be a minimal zero-sum sequence over a finite cyclic group [Formula: see text] of order [Formula: see text]. An important question in zero-sum theory is to determine the pairs [Formula: see text] for which every minimal zero-sum ...
Fan Ge
core   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina   +11 more
wiley   +1 more source

Efficacy of Intermittent Theta‐Burst Stimulation for Prolonged Disorders of Consciousness: A Prospective, Randomized, Controlled Trial

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu   +10 more
wiley   +1 more source

Some Results on Zero-Sum Sequences in Z_p^3

open access: yes, 2014
This was a part of my master thesis under Prof.
openaire   +2 more sources

Quantifying the Impact of Ocrelizumab on Paramagnetic Rim Lesions in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Paramagnetic rim lesions (PRLs) are a subset of chronic active multiple sclerosis (MS) lesions marked by iron‐laden microglia and macrophages. Ocrelizumab, a monoclonal antibody targeting CD20+ B cells, suppresses acute MS activity, but its effect on PRLs remains unclear. In a longitudinal study of 29 ocrelizumab‐treated patients with at least
Kimberly H. Markowitz   +9 more
wiley   +1 more source

Splitting method involving two-step inertial for solving inclusion and fixed point problems with applications

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering
In this article, two-step inertial method is proposed for finding zero point of the sum of two monotone operators and fixed-point of κ-strictly pseudo-nonspreading mapping in a real Hilbert space.
Francis O. Nwawuru   +3 more
doaj   +1 more source

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