Results 41 to 50 of about 64,170 (304)

Development of reference materials for the determination of calcium, iron, selenium, and zinc in dietary supplements

open access: yesTạp chí Kiểm nghiệm và An toàn thực phẩm
Food supplements are increasingly popular among consumers because of their convenience and nutritional value. Among the ingredients, essential minerals are added a lot because of their effects on health at all ages especially calcium (Ca), iron (Fe ...
Tran Thanh Son   +5 more
doaj   +1 more source

Development of a certified reference material: ethanol in water - a practical case

open access: yesBrazilian Archives of Biology and Technology, 2006
The present work describes the development of a certified reference material (CRM) composed of solutions of ethanol in water in five different concentrations, and all stages necessary for the development of an CRM, according to the guidelines of ISO ...
Vanderléa de Souza   +5 more
doaj   +1 more source

Preparation of Standard Material for Composition Analysis of Manganese Ore

open access: yesYankuang ceshi, 2022
BACKGROUND The toxic and hazardous elements in manganese ore not only affect manganese purification, production environment and product quality, but have also always been a technical problem in the manganese industry and particularly in experimental ...
WANG Ganzhen   +5 more
doaj   +1 more source

Caracterização detalhada de material de referência certificado de carvão brasileiro

open access: yesQuímica Nova, 2013
The use and characterization of the first Certified Reference Material (CRM) of Brazilian coal for analytical quality control are presented. All results were determined within the limits of repeatability and reproducibility allowed under the standards ...
Vera L. V. Fallavena   +7 more
doaj   +1 more source

Material synthesis and evaluation of metrological characteristics of potassium fluozirconate certified reference material

open access: yesСтандартные образцы, 2017
The relevance of the study. For metrological support of control methods for composition ofpotassium fluozirconate, used in the production of metallic zirconium, applied in various technical fields, including nuclear power, electronics, chemical ...
D. G. Lisienko   +3 more
doaj   +1 more source

Targeted modulation of IGFL2‐AS1 reveals its translational potential in cervical adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
Cervical adenocarcinoma patients face worse outcomes than squamous cell carcinoma counterparts despite similar treatment. The identification of IGFL2‐AS1's differential expression provides a molecular basis for distinguishing these histotypes, paving the way for personalized therapies and improved survival in vulnerable populations globally.
Ricardo Cesar Cintra   +6 more
wiley   +1 more source

Application of gas chromatography with tandem mass spectrometry for certification of the reference material of «Dioxins» in animal fat

open access: yesСтандартные образцы, 2020
The article presents the results of applying gas chromatography - mass-spectrometry (GC-MS) and tandem mass spec-trometry (GC-MS/MS) methods for determination of certified values (mass fraction) of «Dioxins» - Polychlorinated Dibenzo-p-dioxins and ...
A. I. Krylov   +2 more
doaj   +1 more source

Preparation of Sepiolite Reference Material for Chemical Composition Analysis

open access: yesYankuang ceshi, 2021
BACKGROUND Sepiolite is a very important non-metallic mineral, which is widely used in aviation, animal husbandry, the chemical industry, environmental protection and other fields.
WEI Shuang   +5 more
doaj   +1 more source

KDM7A and KDM1A inhibition suppresses tumour promoting pathways in prostate cancer

open access: yesMolecular Oncology, EarlyView.
Treatment resistance is a major challenge for patients with advanced prostate cancer. This study examined an alternative approach to target the major prostate cancer‐promoting pathway by targeting epigenetic factors, whose levels are higher in tumours.
Jennie N Jeyapalan   +16 more
wiley   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

open access: yesFEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid   +3 more
wiley   +1 more source

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