Results 71 to 80 of about 371,175 (351)

Development of a Water Matrix Certified Reference Material for Volatile Organic Compounds Analysis in Water [PDF]

open access: gold, 2021
Liping Fang   +7 more
openalex   +1 more source

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung   +7 more
wiley   +1 more source

On the system of provision of ojsc "MMC 'Norilsk Nickel'" with interstate and State certified reference materials for quality control of cobalt, nickel, copper and promproducts

open access: yesСтандартные образцы, 2017
In order to manage the quality of OJSC "MMC "Norilsk Nickel" products the Centre of Certified Reference Material Development has developed and is currently successfully implementing a system of operations provision with interstate and state certified ...
T. V. Shabelnikova, L. E. Yakovleva
doaj  

Certified reference material production in Turkey

open access: yesJournal of Chemical Metrology, 2017
TUBITAK UME, the national metrology institute of Turkey has become involved in the development of reference materials since 2000, when the first proficiency test was organized for the field laboratories. After 2009, TUBITAK UME has established a clean chemistry laboratory for reference measurements and state-of-the-art reference material processing and
openaire   +2 more sources

Remote Monitoring in Myasthenia Gravis: Exploring Symptom Variability

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Myasthenia gravis (MG) is a rare, autoimmune disorder characterized by fluctuating muscle weakness and potential life‐threatening crises. While continuous specialized care is essential, access barriers often delay timely interventions. To address this, we developed MyaLink, a telemedical platform for MG patients.
Maike Stein   +13 more
wiley   +1 more source

Preparation of Certified Reference Materials of Sillimanite for Chemical Composition Analysis

open access: yesYankuang ceshi, 2017
With an increasing utilization of sillimanite, some reference materials of sillimanite for chemical composition have been developed in countries such as the UK, South Africa and Japan.
XU Chun-xue   +5 more
doaj   +1 more source

Off-line determination of trace silver in water samples and standard reference materials by cloud point extraction–atomic absorption spectrometry; pp. 190–196 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2009
An off-line method for the determination of trace silver in water samples and certified reference materials by cloud point extraction (CPE) followed by flame atomic absorption spectrometry (FAAS) has been worked out.
Ersin Kilinc   +3 more
doaj   +1 more source

CERTIFICATION REPORT: The certification of the absorbed energy (120 J nominal) of Charpy V-notch reference test pieces for tests at 20 °C: ERM®-FA016bh [PDF]

open access: yes, 2017
This certification report describes the processing and characterisation of ERM®-FA016bh, a batch of Charpy V-notch reference test pieces certified for the absorbed energy (KV).
DEAN ALAN   +3 more
core   +1 more source

Human Urine Certified Reference Material for Arsenic Speciation [PDF]

open access: yesClinical Chemistry, 2000
Abstract Background: Chemical speciation analysis is essential for the biological monitoring of inorganic arsenic exposure using urine as indicator medium. There is increasing demand for a certified reference material (CRM) of urine matrix for arsenic speciation.
J, Yoshinaga   +4 more
openaire   +2 more sources

Diagnostic Utility of the ATG9A Ratio in AP‐4–Associated Hereditary Spastic Paraplegia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Adaptor protein complex 4–associated hereditary spastic paraplegia (AP‐4‐HSP), a childhood‐onset neurogenetic disorder and frequent mimic of cerebral palsy, is caused by biallelic variants in the adaptor protein complex 4 (AP‐4) subunit genes (AP4B1 [for SPG47], AP4M1 [for SPG50], AP4E1 [for SPG51], and AP4S1 [for SPG52]).
Habibah A. P. Agianda   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy