Results 151 to 160 of about 104,696 (299)

Mechanism of Damage and Micro‐Characterisation of Irradiation‐Induced Free Radicals on the Epoxy Insulation of the Bridge Arm Reactors at High Altitude

open access: yesHigh Voltage, EarlyView.
ABSTRACT Damage degradation of epoxy resin insulating materials by free radicals triggered by the ultraviolet irradiation environment at high altitude has become a key issue that restricts the reliability of the bridge arm reactor at high altitude.
Liang Zou   +5 more
wiley   +1 more source

Patch Test Results With the European Baseline Series, 2021/2022—Joint European Results of the ESSCAA and the EBSB Working Groups of the ESCD, and the GEIDACC

open access: yesContact Dermatitis, EarlyView.
ABSTRACT Background Patch test results obtained with the European Baseline Series (EBS) in its current version serve both contact allergy surveillance and (re‐)assessing the diagnostic value of EBS allergens. Objectives To present results of current EBS patch testing, obtained in 59 departments in 14 European countries during 2021 and 2022.
Wolfgang Uter   +73 more
wiley   +1 more source

Skin Sensitisation and Dermatitis Among Epoxy‐Exposed Workers in a Wind Turbine Plant: Influence of Occupational Factors

open access: yesContact Dermatitis, EarlyView.
Epoxy resin sensitisation remains a relevant occupational risk in wind turbine blade manufacturing, confined to high‐exposure tasks and often presenting as hand dermatitis. Accurate diagnosis requires epoxy‐specific patch testing, and prevention must go beyond personal protective equipment.
Vítor Pinheiro   +9 more
wiley   +1 more source

Adhesion of Newly Developed Composite Resin Splinting Materials to Enamel: Effect of Enamel Surface Treatment

open access: yesDental Traumatology, EarlyView.
ABSTRACT Background/Aim To evaluate the shear bond strength (SBS) of newly developed composite resin materials intended for dental splinting to enamel and to determine whether phosphoric acid etching alone provides reliable adhesion. Material and Methods Four experimental materials (G‐Fix, Light Fix, Ortho Connect, and Ortho Connect Flow) were compared
Wonkyu Shin   +7 more
wiley   +1 more source

Evaluation of physical, chemical, and color‐matching properties of monochromatic resin composites: An in vitro study

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract The objectives of this study are to evaluate, in vitro, the microhardness, sorption, solubility, color stability, and color‐matching ability of monochromatic resin composites: Palfique Omnichroma / Tokuyama (Mono1) and Vittra APS Unique / FGM (Mono2) compared with the conventional resin composite: Filtek Z250 XT / Solventum (Conv).
Ericka dos Santos Lopes   +5 more
wiley   +1 more source

BISPHENOL A [PDF]

open access: yesChemical & Engineering News Archive, 1955
openaire   +2 more sources

Physicochemical characterization of etch‐and‐rinse adhesive system doped with catechin‐loaded polymeric microparticles

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This study evaluated the incorporation of epigallocatechin‐3‐gallate (EGCG)‐loaded poly(lactide‐co‐glycolide) (PLGA) microparticles into a two‐step etch‐and‐rinse adhesive and their effects on physicochemical properties and EGCG release. EGCG was added to Single Bond 2 either directly (0.01% and 0.1% w/w) or encapsulated in PLGA 50:50 or 75:25
Jiovanne Rabelo Neri   +6 more
wiley   +1 more source

Effect of in‐office bleaching on the color stability of bulk‐fill resin composites immersed in staining beverages

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This study evaluated the impact of in‐office bleaching on color stability of bulk‐fill composites submitted to staining. Bulk‐fill (Aura, Opus, and Filtek One) and nanofilled (Filtek Z350) composite specimens were submitted to the following: control (CT); bleaching and immersion in distilled water (BL); and bleaching with daily 15‐min ...
Matheus Kury   +5 more
wiley   +1 more source

Fracture load and three‐dimensional internal void analysis of direct composites used to restore worn molars

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This study evaluated (1) the load‐bearing capacity of molars restored with direct occlusal veneers fabricated either from short‐fiber‐reinforced composite (SFRC) or particulate‐filled composite (PFC) and the presence of internal voids within the materials, and (2) effect of water storage on the fracture load and correlation between internal ...
Topias Yli‐Urpo   +6 more
wiley   +1 more source

Bisphenol Analogs Downregulate the Self-Renewal Potential of Spermatogonial Stem Cells

open access: yesThe World Journal of Men's Health
Purpose: In this study, we investigated the effect of bisphenol-A (BPA) and its major analogs, bisphenol-F (BPF), and bisphenol- S (BPS), on spermatogonial stem cells (SSCs) populations using in vitro SSC culture and in vivo transplantation models ...
Seo-Hee Kim   +9 more
doaj   +1 more source

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