Results 81 to 90 of about 301,031 (277)

On the Determination of Kappa Distribution Functions from Space Plasma Observations

open access: yesEntropy, 2020
The velocities of space plasma particles, often follow kappa distribution functions. The kappa index, which labels and governs these distributions, is an important parameter in understanding the plasma dynamics.
Georgios Nicolaou   +2 more
doaj   +1 more source

Air Pollution and the Risk and Progression of Multiple Sclerosis: A Systematic Review and Meta‐Analysis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Purpose Air pollution has been linked to several neurological conditions, including stroke and neurodegenerative diseases. Evidence regarding its association with multiple sclerosis (MS) remains conflicting, limited by small sample sizes. Methods PubMed, Embase, Scopus, and Cochrane controlled register of trials (CENTRAL) were searched on ...
Ahmad A. Toubasi, Thuraya N. Al‐Sayegh
wiley   +1 more source

Diagnosis of Severe Fetal Anemia Based on Perinatal Outcomes: A Comparative Analysis of the Current Reference Values

open access: yesAnemia, 2013
Objectives. To compare current criteria for severe fetal anemia diagnosis. Methodology. A cohort study analyzed 105 alloimmunized fetuses that underwent cordocentesis due to risk of anemia.
Zilma Silveira Nogueira Reis   +5 more
doaj   +1 more source

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu   +11 more
wiley   +1 more source

CONCORDANCIA ENTRE ECOCARDIOGRAFÍA PRENATAL Y POSNATAL EN PACIENTES CON CARDIOPATÍAS CONGÉNITAS: HOSPITAL DE NIÑOS DR. ROBERTO DEL RÍO

open access: yesRevista Chilena de Obstetricia y Ginecología, 2010
Antecedentes: En Chile las malformaciones congénitas son la primera causa de mortalidad neonatal precoz, siendo las cardiopatías congénitas su principal factor.
Paulo Valderrama E, Ignacio Hernández N
doaj  

Comprehensive Assessment of Arterial, Tissue, and Venous Collaterals for Evaluating the Infarct Growth Rate: The Multimodal Collateral Score

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Collaterals are crucial factors that influence the infarct growth rate (IGR). We aimed to determine whether a comprehensive multimodal collateral score (MCS), incorporating collateral assessment at the arterial, tissue, and venous levels, is associated with functional independence and provides incremental prognostic value over ...
Giorgio Busto   +12 more
wiley   +1 more source

Identificação de fragmentos de floresta nativa, por diferentes intérpretes, com a utilização de imagens landsat e cbers em lavras, MG Identification of small areas of semideciduous forest, by different analysts, in Lavras region, MG, using Landsat and Cbers sattelites images

open access: yesCiência e Agrotecnologia, 2005
Neste trabalho, as imagens dos satélites Landsat 7 e Cbers 2 foram analisadas com o objetivo de identificar áreas com fragmentos de floresta semidecídua e de avaliar a exatidão da classificação feita por diferentes intérpretes e técnicas de interpretação.
Elizabeth Ferreira   +3 more
doaj   +1 more source

A test of local Lorentz invariance with Compton scattering asymmetry

open access: yes, 2016
We report on a measurement of the constancy and anisotropy of the speed of light relative to the electrons in photon-electron scattering. We used the Compton scattering asymmetry measured by the new Compton polarimeter in Hall~C at Jefferson Lab to test ...
Dutta, D., Mohanmurthy, P., Narayan, A.
core   +1 more source

Evaluating a Pragmatic Strength Alternative for Frailty Measurement and Assessing Its Predictive Capacity Against Established Frailty Instruments in Rheumatoid Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective Frailty occurs prematurely in rheumatoid arthritis (RA) and is associated with poor health outcomes. We compared the performance of four frailty instruments, including a pragmatic alternative measure using chair sit‐to‐stand (STS), and evaluated their abilities to predict poor health outcomes.
Kylie E. Riggles   +14 more
wiley   +1 more source

Avaliação da confiabilidade da gota espessa em um estudo de campo conduzido em uma área endêmica de malária no Médio Rio Negro, Estado do Amazonas Evaluation of the thick smear in a field condition in a malaria endemic area in the Middle Region of Rio Negro, Amazon

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2006
Com o objetivo de medir a confiabilidade da gota espessa em uma área de infecção pelo Plasmodium foi realizado um estudo no qual foram avaliadas 322 gotas espessas, lidas em condições normais de campo, por microscopista treinado.
Martha Cecilia Suárez-Mutis   +1 more
doaj   +1 more source

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