Results 121 to 130 of about 80,890 (284)

Zero-sum free sequences with small sum-set

open access: yes, 2008
Let A be a zero-sum free subset of Z_n with |A|=k. We compute for k\le 7 the least possible size of the set of all subset-sums of A.
Bhowmik, Gautami   +2 more
openaire   +3 more sources

Interplay between four conjectures on certain zero-sum problems

open access: yes, 2002
In this paper, we explore the interplay of four different conjectures on certain zero-sum problems in Zp ⊕ Zp. This study of the inter-relations between these conjectures leads to the conclusion that determining the structure of minimal zero sequences ...
Thangadurai, R.
core   +1 more source

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng   +4 more
wiley   +1 more source

LONGEST MINIMAL ZERO-SUM SEQUENCES OVER AN INTERVAL

open access: yes, 2019
A zero-sum sequence is a collection of integers that sum to 0 (e.g., {5,-3,-2}). A zero sum sequence is minimal if it does not (properly) contain another zero sum sequence (e.g., {4,1,-2,-2,1} is not minimal).
Espe, Nick   +3 more
core  

Risk of Non‐Arteritic Anterior Ischemic Optic Neuropathy in Idiopathic Intracranial Hypertension Patients Treated with GLP‐1 Receptor Agonists

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Glucagon‐like peptide‐1 receptor agonists (GLP‐1 RAs) have demonstrated significant weight‐reducing effects and may offer benefits in idiopathic intracranial hypertension (IIH); however, recent concerns about the risk of non‐arteritic anterior ischemic optic neuropathy (NAION) have emerged.
Faisal A. Al‐Harbi   +9 more
wiley   +1 more source

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni   +19 more
wiley   +1 more source

Long Minimal Zero-Sum Sequences in the Groups C2r-1 ⊕ C2k

open access: yesIntegers, 2014
See the abstract in the attached pdf.
Fang Chen, Svetoslav Savchev
openaire   +3 more sources

Generalized pairwise z-complementary codes

open access: yes, 2008
An approach to generate generalized pairwise Z-complementary (GPZ) codes, which works in pairs in order to offer a zero correlation zone (ZCZ) in the vicinity of zero phase shift and fit extremely well in power efficient quadrature carrier modems, is ...
Loo, KK, Fan, P, Tung, X, Feng, L
core  

On the number of zero sum subsequences

open access: yes, 1997
Let Zn be the cyclic group of order n. For a sequence S of elements in Zn, we use fn(S) to denote the number of subsequences, the sum of whose elements is zero. In this paper, we give a characterization on the sequences S of elements in Zn for which fn(S)
Weidong Gao, Gao, Weidong
core   +1 more source

The Case of a 55‐Year‐Old Man With Leg Weakness

open access: yes
Annals of Clinical and Translational Neurology, EarlyView.
Ada Breitenbucher   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy