Results 81 to 90 of about 9,694 (251)

Recycling Subducted Organic Carbon as Diamonds: An Example From the New Caledonia Forearc Ophiolite

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract Micro‐diamonds and moissanite (SiC) have been identified in ophiolitic mantle harzburgites and chromitites of the New Caledonian Peridotite Nappe. The pale yellow (100–250 μm) micro‐diamonds and light blue moissanite (mean −26.5‰, range −33.5‰ to −23.8‰ and mean −26.9‰, range −31.8‰ to −25.6‰ respectively) exhibit consistently strong negative ...
Jonathan C. Aitchison   +7 more
wiley   +1 more source

Asbestos in toys: an exemplary case

open access: yesScandinavian Journal of Work, Environment & Health, 2016
OBJECTIVES: DAS was an artificial clay which, once molded, hardened at room temperature. It was largely used as a toy between 1963 and 1975 in Italy, Netherlands, Germany, UK and Norway.
Stefano Silvestri   +3 more
doaj   +1 more source

Magnetic Amphiphilic Composites Applied for the Treatment of Biodiesel Wastewaters

open access: yesApplied Sciences, 2012
In this work, new magnetic amphiphilic composites were prepared by chemical vapor deposition with ethanol on the surface of hydrophilic natural chrysotile matrix containing Fe catalyst.
Bruno R. S. Lemos   +7 more
doaj   +1 more source

Analysis of changes in radiographic lung image and lung ventilation disorders in workers occupationally exposed to chrysotile in the past

open access: yesMedycyna Pracy, 2017
Background: The adverse health effects of occupational exposure to asbestos dust may occur several years after first exposure. The objective of the study was to assess the relationship between lesions in the respiratory system and the factors ...
Elżbieta Cwynar   +2 more
doaj   +1 more source

Chrysotile-asbestos industry – production from mining to enrichment

open access: hybrid, 2022
С.Е. Пуненков   +1 more
openalex   +1 more source

Selective Detection and Automated Counting of Fluorescently-Labeled Chrysotile Asbestos Using a Dual-Mode High-Throughput Microscopy (DM-HTM) Method

open access: yesSensors, 2013
Phase contrast microscopy (PCM) is a widely used analytical method for airborne asbestos, but it is unable to distinguish asbestos from non-asbestos fibers and requires time-consuming and laborious manual counting of fibers.
Jung Kyung Kim   +5 more
doaj   +1 more source

Lizardite–chrysotile veins from Vempalle Formation of Cuddapah Supergroup, India: a study in fluid–rock interaction

open access: diamond, 2022
Kasturi Chakraborty   +3 more
openalex   +1 more source

Dose-Response Relationships in Expression of Biomarkers of Cell Proliferation in Assays and Inhalation Experiments

open access: yesDose-Response, 2004
Asbestos is a group of naturally occurring mineral fibers which are associated in occupational settings with increased risks of malignant mesothelioma (MM), lung cancers, and pulmonary fibrosis (asbestosis).
Arti Shukla   +2 more
doaj   +1 more source

The c-Jun N-terminal kinase signaling pathway mediates chrysotile asbestos-induced alveolar epithelial cell apoptosis

open access: yesMolecular Medicine Reports, 2014
Exposure to chrysotile asbestos exposure is associated with an increased risk of mortality in combination with pulmonary diseases including lung cancer, mesothelioma and asbestosis. Multiple mechanisms by which chrysotile asbestos fibers induce pulmonary
Peng Li   +8 more
semanticscholar   +1 more source

Cancer Mortality in Chinese Chrysotile Asbestos Miners: Exposure-Response Relationships

open access: yesPLoS ONE, 2013
Objective This study was conducted to assess the relationship of mortality from lung cancer and other selected causes to asbestos exposure levels. Methods A cohort of 1539 male workers from a chrysotile mine in China was followed for 26 years.
Xiaorong Wang   +7 more
semanticscholar   +1 more source

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