Results 21 to 30 of about 195,750 (203)

Environmental Impact of Silicic Magmatism in Large Igneous Province Events

open access: yesGeophysical Monograph Series, Page 133-151., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley  

+1 more source

Skeletal fluorosis: a rare cause of diffuse bone condensation

open access: yesThe Pan African Medical Journal, 2017
A 69-year-old man, native of metlaoui in Tunisia, presented to the Department of Rheumatology at our institution with 10 years of non-inflammatory rachialgia with polyarthralgia.
Zeineb Alaya, Walid Osman
doaj   +1 more source

Hydrogeochemistry of fluoride in shallow groundwater of the abandoned Yellow River delta, China

open access: yesHydrology Research, 2021
Fluorosis is the most widespread and serious endemic disease in the abandoned Yellow River flooding delta of East China. One of the important causes of fluorosis is drinking high-fluorine groundwater. In this study, 313 groundwater samples were collected
Lai Zhou   +6 more
doaj   +1 more source

Effect of naphthylamine compounds on superoxide ion level in the fluoride poisoned silkworm

open access: yes浙江大学学报. 农业与生命科学版, 2001
In order to understand the mechanism of the detoxication of the fluoride poisoned silkworm by CRL, a naphthylamine compound, the effect of CRL on superoxide ion () level in the hemolymph of the fluoride poisoned silkworm was studied.
LÜ Shun-lin, GU Guo-da, DING Chun-yang
doaj   +1 more source

Targeted medical examinations for workers exposed to fumigants

open access: yesJournal of Occupational Medicine and Toxicology, 2022
Fumigants are gaseous pesticides or biocides which eradicate pests by suffocation or poisoning. Worker exposure to fumigants is mainly via inhalation, followed by dermal contact and ingestion, leading to various acute and chronic health effects ...
Zeenathnisa Mougammadou Aribou   +1 more
doaj   +1 more source

Efficacy and Safety of Fluoride in Children: A Narrative Review

open access: yesJournal of Pediatrics Review, 2021
Context: Fluoride is a necessary element for bone growth and the prevention of dental caries. Diet and dentifrices are the most significant sources of fluoride exposure in children.
Pegah Nasiri   +4 more
doaj  

LABORATORY EXAMINATION IN NERVE AGENT INTOXICATION

open access: yesActa Medica, 2013
Diagnosis of nerve agent intoxication is based on anamnestic data, clinical signs and laboratory examination. For acute poisoning, cholinesterase activity in the blood (erythrocyte AChE, plasma/serum BuChE) is sensitive, simple and most frequent ...
Jiří Bajgar
doaj   +1 more source

Cobalt‐Catalyzed C─N Bond Formation via Metal‐Hydride Hydrogen Atom Transfer (MHAT)

open access: yesAngewandte Chemie, EarlyView.
Cobalt‐catalyzed metal‐hydride hydrogen atom transfer (Co‐MHAT) converts simple alkenes into C─N bonds under mild, near‐neutral conditions. A shared Co─H‐initiated radical/organocobalt intermediate is channeled into radical trapping, radical‐polar crossover, or radical ligand transfer, unifying hydroamination, hydroazidation, hydroamidation, and remote
Arman Khosravi, Ming‐Yu Ngai
wiley   +2 more sources

Effects of fluoride intake on insulin sensitivity and insulin signal transduction [PDF]

open access: yes, 2008
Forty seven-week-old male castrated Wistar rats were randomly divided evenly into a control group and a fluoride (F) group. The latter was given a single dose of NaF from a solution containing 1.0 mg F ion/kg bw, administered by gavage. After 30 min, the
Sassaki, Kikue Takebayashi   +4 more
core   +3 more sources

Microabrasion as treatment of enamel fluorosis [PDF]

open access: yesRGO: Revista Gaúcha de Odontologia, 2008
There is currently a trend in favor of using fluoride as a coadjuvant in reducing caries indexes, as much in underdeveloped as in developedcountries. However, simultaneously the indexes of dental fluorosis seem to grow in an inverse proportion.
Ana Caroline Brito   +3 more
doaj  

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