Results 141 to 150 of about 62,936 (308)

United States Geological Survey Reports

open access: yes, 1951
Report summarizing the research done by the Geochemistry and Petrology branch of the Trace Elements Section during the period from January 1 - March 31, 1951. Research includes mineralogic and petrologic investigations of radioactive rocks, minerals, and
Rabbitt, John C.
core  

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers   +19 more
wiley   +1 more source

Determinação de elementos traço em amostras biológicas tratadas com ácido fórmico por espectrometria de massa com plasma indutivamente acoplado [PDF]

open access: yes, 2012
Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaEste trabalho propõe a solubilização com ácido fórmico como um procedimento alternativo à digestão ácida no preparo ...
Tormen, Luciano
core  

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

The effect of feeding bulls with chelated trace element compounds on the quality indicators of beef

open access: yesScientific Messenger of LNU of Veterinary Medicine and Biotechnologies
One of the main tasks of agricultural science in the conditions of reforming agricultural production and unsatisfactory environmental conditions is to provide the population with high-quality and environmentally friendly food products. Among them, beef occupies a prominent place.
R. S. Oseredchuk, S. O. Zaslavskyi
openaire   +1 more source

Perceived Impacts and Predictors of Cannabis Products Used by Patients with Rheumatologic Conditions in Alberta, Canada: A Multivariable Analysis of Cross‐Sectional Survey Data

open access: yesArthritis Care &Research, EarlyView.
Objective This study aimed to characterize cannabis product choices (cannabinoid content and formulation) among patients with rheumatologic conditions and their associations with patient factors, patient‐reported perceived side effects, and positive impacts.
Susan Zhang   +10 more
wiley   +1 more source

Assessment of the feed additive copper bislysinate for all animal species for the renewal of its authorisation (Senzyme GmbH)

open access: yesEFSA Journal
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of copper bislysinate as nutritional feed additive for all species and categories. The additive is currently authorised for use in
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +21 more
doaj   +1 more source

Study of Trace Elements and Organic Compounds of the Toxicological Interest in Tea Samples

open access: yes, 2020
Tea is one of the most consumed beverages in the world after water. In recent years there is a growing interest in the study of its properties and its consumption is associated with healthy diets. In the present doctoral thesis, the presence of endocrine disrupters (phthalates and Bisphenol A), toxic and essential elements, and tea antioxidants were ...
openaire   +1 more source

Trace elements quantification in Portuguese red wines [PDF]

open access: yes, 2011
Dissertation for the Degree of Master in Technology and Food Safety – Food QualityThe aim of this thesis is to characterize Portuguese red wines in terms of trace elements composition.
Santos, Susana Isabel Barros dos
core  

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy