Results 131 to 140 of about 410,766 (246)

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright   +10 more
wiley   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi   +8 more
wiley   +1 more source

La Inversión Extranjera en América Latina y el Caribe 2007 [PDF]

open access: yes, 2008
Documento en inglés ingresado en Biblioteca (146629)Incluye BibliografíaEn 2007 la inversión extranjera directa (IED) que ingresó a América Latina y el Caribe alcanzó niveles sin precedentes, al superar por primera vez los 100.000 millones de dólares ...

core  

Long‐Term Neurologic Exam Findings in People Diagnosed and Treated During Acute HIV Infection

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Evaluate clinical and laboratory correlates of abnormal neurologic exam findings after acute HIV infection (AHI). Methods Participants from the RV254/SEARCH 010 cohort in Bangkok underwent standardized neurologic examinations at Weeks 0 (AHI), 12, 96, and 288 following antiretroviral therapy (ART).
Kathryn B. Holroyd   +118 more
wiley   +1 more source

Análisis de ingreso y evaluación financiera del modelo de leche pequeño productor cuarta parte

open access: yes, 1985
50 páginasEl presente estudio de caso tiene como propósito en su plan de desarrollo integral de la finca, la solución de las problemáticas de carácter financiero y técnico que presenta el productor en su finca.
Instituto Interamericano de Cooperación para la Agricultura (IICA)   +4 more
core  

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Teoría de la Inversión y Mercados Financieros: Valuación de Empresas y Equilibrio Macroeconómico

open access: yesActualidad Económica, 2007
El objetivo del presente trabajo es mostrar, de manera intuitiva, los elementos que brinda la teoría económica para construir proyecciones que sean consistente con el equilibrio de la economía en su conjunto y evitar la toma de decisiones basadas en ...
Javier Gerardo Milei
doaj  

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

STUDY THE IMPACT OF INVESTMENT IN THE PRODUCTION OF SUGAR IN THE SANTIAGO DE CUBA PROVINCE

open access: yesAnuario Facultad de Ciencias Económicas y Empresariales, 2016
The present work has as objective measuring the impact of the industrial investment on the growth rate of sugar’s production in the province Santiago de Cuba.
Ulises Pacheco-FeriaI¡
doaj  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy