Results 181 to 190 of about 1,256,521 (330)

Combustion Products of Calcium Carbide Reused by Cu-Based Catalysts for Acetylene Carbonylation. [PDF]

open access: yesACS Omega, 2020
Sun Y   +7 more
europepmc   +1 more source

Production of arsenical bronze using speiss on the Elephantine Island (Aswan, Egypt) during the Middle Kingdom (Middle Bronze Age) (c.2000–1650 BCE)

open access: yesArchaeometry, EarlyView.
Abstract This paper presents the first direct evidence of the slags produced during the cementation alloying process of Cu with speiss inside ceramic crucibles, thus representing Cu alloying with As in Middle Kingdom Egypt. The settlement deposits from the Middle Bronze Age were excavated on Elephantine Island, within modern Aswan.
Jiří Kmošek, Martin Odler
wiley   +1 more source

Prevalence of Post‐Operative Complications in Autotransplanted Teeth: A Long‐Term Retrospective Cohort

open access: yesDental Traumatology, EarlyView.
ABSTRACT Background/Aims To evaluate the prevalence and timing of post‐operative complications following tooth autotransplantation, identify factors associated with earlier diagnosis, and report long‐term survival and success rates. Materials and Methods A single‐centre retrospective cohort study was conducted at a Czech university dental clinic (2003 ...
Juraj Marton   +5 more
wiley   +1 more source

Dentifrices for preventing erosive tooth wear: An in vitro comparative study

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract Erosive tooth wear is a progressive condition that compromises enamel structure and requires preventive strategies. This in vitro study aimed to compare the protective effects of fluoride‐based dentifrices containing various bioactive agents on sound enamel subjected to simulated erosive–abrasive challenges.
Juliellen Luiz da Cunha   +6 more
wiley   +1 more source

Calcium Carbide. (Ca C2)

open access: yesJournal of Synthetic Organic Chemistry, Japan, 1986
openaire   +2 more sources

Does attachment removal damage enamel? Influence of adhesive, resin, and bur on surface integrity

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract To evaluate the combination of composites, adhesive systems, and burs considering artificial accelerated aging (AAA), influence enamel roughness and morphology after attachment removal. One hundred ninety‐two bovine enamel specimens were divided according to composite type (Transbond XT, flowable, bulk‐fill flowable), adhesive system (Single ...
Marilia Daniela Busnardo Canadas   +2 more
wiley   +1 more source

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