Results 11 to 20 of about 1,717,537 (215)

Progress in ICP-MS Analysis of Minerals and Heavy Metals in Traditional Medicine

open access: yesFrontiers in Pharmacology, 2022
Aim: This study systematically reviewed the application of ICP-MS and its combined technology in the determination of mineral and heavy metal elements in medicinal materials derived from plants, animals, minerals and their preparations (Chinese patent ...
Wanyue Chen   +8 more
doaj   +1 more source

Casi todo era negro: resistencias y puntos de fuga en torno al tráfico ilegal de mineral (Galicia, 1939-1945)

open access: yesCahiers de Civilisation Espagnole Contemporaine, 2017
The aim of this article is to glimpse readings that can be made on aspects of everyday life of the populations involved in the extraction and illegal sale of tungsten in the years of the Second World War in Galicia.
Ana Cabana Iglesia
doaj   +1 more source

Engineering method for determining the sulfur of mineral impurities for the prediction of hazardous properties of coal seams

open access: yesГеофизический журнал, 2023
Purpose: develop an engineering method for determining sulfur in mineral impurities to predict the hazardous properties of mine seams in mining operations.
Ye.S. Rudniev   +4 more
doaj   +1 more source

Variability, heritability and genetic association in vegetable amaranth (Amaranthus tricolorL.)

open access: yesSpanish Journal of Agricultural Research, 2015
Forty three vegetable amaranth (Amaranthus tricolor L.) genotypes selected from different eco-geographic regions of Bangladesh were evaluated during 3 years (2012-2014) for genetic variability, heritability and genetic association among mineral elements ...
Umakanta Sarker   +3 more
doaj   +1 more source

Investigação da termoluminescência de alexandrita (BeAl2O4:Cr3+)

open access: yesBrazilian Journal of Radiation Sciences, 2020
A alexandrita natural (BeAl2O4:Cr3+) é um mineral amplamente encontrado no Brasil e tem sido investigada para atuar como um detector de radiação ionizante (dosímetro) com o uso da técnica da termoluminescência (TL).
Neilo M. Trindade   +4 more
doaj   +1 more source

Chemo-Mechanical Couplings at Granular Contact: The Effect of Mineral Dissolution and Precipitation across the Scales

open access: yesGeotechnics, 2022
Strong interactions between mechanical deformation and chemical reactions may play a critical role in the response of geomaterials or geological systems to evolving environmental circumstances that may occur in both natural and engineered processes.
Hemanta Bista   +2 more
doaj   +1 more source

Bone Molecular Modifications Induced by Diagenesis Followed-Up for 12 Months

open access: yesBiology, 2022
After death, diagenesis takes place. Numerous processes occur concomitantly, which makes it difficult to identify the diagenetic processes. The diagenetic processes refer to all processes (chemical or physical) that modify the skeletal remains.
Guillaume Falgayrac   +7 more
doaj   +1 more source

Changes to Cobb 500 chick characteristics, bone ash, and residual yolk mineral reserves during time spent in the hatcher

open access: yesPoultry Science, 2020
Previous work has identified an effect of hatch time on chick femur mineralization. This experiment assessed the impact of hatch time and a 24-h post-hatch unfed time period on chick bone mineralization and yolk mineral utilization.
R.L. Hopcroft, P.J. Groves, W.I. Muir
doaj   +1 more source

How Weather Affects over Time the Repeatability of Spectral Indices Used for Geological Remote Sensing

open access: yesRemote Sensing, 2022
Geologic remote sensing studies often targets surface cover that is supposed to be invariant or only changing on a geological timescale. In terms of surface material characteristics, this holds for rocks and minerals, but only to a lesser degree for ...
Harald van der Werff   +3 more
doaj   +1 more source

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