Results 81 to 90 of about 9,089 (210)

Effect of water contamination on the shear bond strength of five orthodontic adhesives [PDF]

open access: yes, 2014
Objectives: To evaluate the shear bond strength and site of failure of brackets bonded to dry and wet enamel. Study design: 50 teeth were divided into ten groups of 5 teeth each (10 surfaces). In half the groups enamel was kept dry before bonding, and in
Bravo, Luis A.   +5 more
core   +4 more sources

Polyamide Acid–Based Surface Modification of Poly(p‐Phenylene Benzobisoxazole) Fibres Reinforcing Syntactic Foam for Using Them as High‐Performance Insulating Core Material

open access: yesHigh Voltage, Volume 11, Issue 2, Page 564-576, April 2026.
ABSTRACT The insulating core is an important part of pillar composite insulators used in power transmission systems. Traditional insulating core materials suffer from various problems that can threaten the reliability of insulated equipment. Syntactic foam (SF) exhibits excellent properties, such as a low density, water penetration resistance and high ...
Le Li   +8 more
wiley   +1 more source

Biological Agents of Bioremediation: A Concise Review [PDF]

open access: yes, 2015
Due to intensive agriculture, rapid industrialization and anthropogenic activities have caused environmental pollution, land degradation and increased pressure on the natural resources and contributing to their adulteration.
Biswas, Karabi
core  

Recent Advances on Thermochromic Inks for Security Applications

open access: yesAdvanced Materials Technologies, Volume 11, Issue 6, 18 March 2026.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira   +5 more
wiley   +1 more source

Cure Kinetics and Chemorheological Modeling of a Transesterification‐Based Epoxy/Anhydride Vitrimer

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 7, February 15, 2026.
Cure kinetics and chemorheological model predictions of experimental reaction rate and chemoviscosity evolutions. ABSTRACT This study presents the cure kinetics, glass transition temperature (T g ) and chemoviscosity models for an epoxy vitrimer synthesized from DGEBA, methylhexahydrophthalic anhydride (MHHPA), and triethanolamine (TEOA).
Romeo E. Ekperi   +2 more
wiley   +1 more source

Bisphenols in Aquatic Products from South China: Implications for Human Exposure

open access: yesToxics
In this study, 245 representative samples of aquatic products were selected from local markets in Shenzhen by stochastic sampling. The samples comprised eight species and fell into three aquatic product categories: fish, crustaceans, and bivalves.
Yinhai Chen   +5 more
doaj   +1 more source

Epidemiological Comparative Study on Contact Sensitisations in Woodworkers With Occupational Dermatitis: Patch Test Data of the Information Network of Departments of Dermatology, 1999 to 2023

open access: yesContact Dermatitis, Volume 94, Issue 2, Page 125-136, February 2026.
The data demonstrates that allergic contact dermatitis is common in WW with OD. The most important allergens include resins (including epoxy resin) and plant‐derived substances (including colophonium). The high share of WW with allergic contact dermatitis and face dermatitis hampers preventive efforts.
Luisa Heizmann   +61 more
wiley   +1 more source

Cashiers and bisphenols: Occupational exposure and health implications in south China

open access: yesEmerging Contaminants
Bisphenols are ubiquitous chemicals used in various industries, raising concerns due to their potential to disrupt endocrine systems, particularly among occupational populations.
Zhenni Zhu   +8 more
doaj   +1 more source

Synthesis of perfluoroalkylene aromatic diamines [PDF]

open access: yes
Analogues of methylene dianilines were synthesized, in which the methylene group between the two aromatic nuclei was replaced by various perfluoroalkylene linkage.
Ito, T. I.   +3 more
core   +1 more source

A systematic review of associations between environmental exposures and development of asthma in children aged up to 9 years [PDF]

open access: yes, 2014
Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.Peer reviewedPublisher ...
AlKandari, F   +7 more
core   +1 more source

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