Results 91 to 100 of about 1,065,726 (286)

Dynamic staged trees for discrete multivariate time series : forecasting, model selection and causal analysis [PDF]

open access: yes, 2010
A new tree-based graphical model — the dynamic staged tree — is used to model discrete-valued discrete-time multivariate processes which are hypothesised to exhibit certain symmetries concerning how situations might unfold.
Smith, JQ   +5 more
core   +1 more source

Some contributions to the analysis of multivariate data

open access: yesBiometrical Journal, 2009
AbstractIn this paper, we provide an overview of recently developed methods for the analysis of multivariate data that do not necessarily emanate from a normal universe. Multivariate data occur naturally in the life sciences and in other research fields.
Bathke, Arne C.   +2 more
openaire   +4 more sources

Memory and Resting‐State Connectivity in Acute Transient Global Amnesia: A Case–Control fMRI Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Transient global amnesia (TGA) is a striking model of isolated amnesia. While hippocampal lesions are well described, the network‐level mechanisms and the precise neuropsychological profile remain debated. Our objective was thus to characterize functional and neuropsychological correlates of acute TGA and their ...
Elias El Otmani   +10 more
wiley   +1 more source

Global permutation tests for multivariate ordinal data: alternatives, test statistics, and the null dilemma [PDF]

open access: yes, 2013
We discuss two-sample global permutation tests for sets of multivariate ordinal data in possibly high-dimensional setups, motivated by the analysis of data collected by means of the World Health Organisation's International Classification of Functioning,
Cieza, Alarcos   +2 more
core   +1 more source

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran   +13 more
wiley   +1 more source

Tools for Exploring Multivariate Data: The Package ICS [PDF]

open access: yes
Invariant coordinate selection (ICS) has recently been introduced as a method for exploring multivariate data. It includes as a special case a method for recovering the unmixing matrix in independent components analysis (ICA).
Klaus Nordhausen   +2 more
core   +1 more source

Geographical origin authentication of fruits: A decadal review (2014–2024) of technological progress and outlook

open access: yesJournal of Integrative Agriculture
Food fraud is an increasingly prevalent deliberate act of deception for profit. Hence, it is highly necessary to develop robust analytical methods to assess the authenticity of foods.
Jiyun Nie   +9 more
doaj   +1 more source

Spatial and Volumetric Characteristics of Glioblastoma: Associations With Clinical Presentation and Survival

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to comprehensively analyze how regional tumor and edema characteristics are associated with clinical presentations and survival outcomes in a large cohort of glioblastoma patients. Methods Patients with IDH‐wildtype glioblastoma who received brain MRI from 2010 to 2023 were included.
Daniel J. Zhou   +16 more
wiley   +1 more source

CHEMICAL VARIABILITY OF Allamanda cathartica L. FLOWERS ASSESSED BY MULTIVARIATE DATA ANALYSIS

open access: yesQuímica Nova
The aim of this study was to determine the chemical variability of Allamanda cathartica flowers collected in different localities of Santa Catarina State, Brazil.
Deivisson W. Rodrigues   +5 more
doaj   +1 more source

Impact of phytosterols on liver and distal colon metabolome in experimental murine colitis model: an explorative study

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2019
Phytosterols are known to reduce plasma cholesterol levels and thereby reduce cardiovascular risk. Studies conducted on human and animal models have demonstrated that these compounds have also anti-inflammatory effects.
Nunzia Iaccarino   +9 more
doaj   +1 more source

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