Results 41 to 50 of about 7,125,243 (334)

Studying the Effect of Using Ultrasound Vibration on the Reproduction of Detail and Surface Hardness of Dental Stone Models

Nano Biomedicine and Engineering, 2022
BackgroundThe accuracy of surface production details in the dental models determines the success of the dental prosthesis in clinical application.AimThis in vitro study aims to compare between dental stone models produced using two types of techniques ...
Ali M. Aljafery, Mohammed Alkafagy, Zena J. Wally, Athraa Mohammed Dheyaa, Raja'a M. Almusawi, Julfikar Haider   +5 more
doaj   +1 more source

The surface hardness of tablets

Journal of Pharmacy and Pharmacology, 1970
AbstractA pneumatic micro-indentation apparatus has been used to determine the hardness of tablets of aspirin at various points on their diameter. All the tablets were 13 mm diameter; the compaction pressure and the particle size of the initial material were varied.
K, Ridgway, M E, Aulton, P H, Rosser
openaire   +2 more sources

Surface hardness and flammability of Na2SiO3 and nano-TiO2 reinforced wood composites

RSC Advances, 2019
The objective of this study was to explore an effect of the combined inorganic materials on the wood hardness and flame-retardancy properties in a concept of sustainable material management.
E. Garskaite, Olov Karlsson, Ž. Stankevičiūtė, A. Kareiva, Dennis Jones, D. Sandberg   +5 more
semanticscholar   +1 more source

Reduced vascular leakage correlates with breast carcinoma T regulatory cell infiltration but not with metastatic propensity

Molecular Oncology, EarlyView.
A mouse model for vascular normalization and a human breast cancer cohort were studied to understand the relationship between vascular leakage and tumor immune suppression. For this, endothelial and immune cell RNAseq, staining for vascular function, and immune cell profiling were employed.
Liqun He, Chiara Testini, Neda Hekmati, Altea Bonello, Aglaia Schiza, Emmanuel Nwadozi, Mia Phillipson, Carina Strell, Michael Welsh   +8 more
wiley   +1 more source

Surface Roughness Effect on Microhardness Measurements

Tribology in Industry
Micro-Vickers hardness measurements are essential for evaluating micro-scale material hardness, providing insights into surface properties and material strength. However, many factors can influence the precision of hardness measurements.
Raimonds Sirants, Janis Lungevics
doaj   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Effect of repeated microwave disinfection on the surface hardness of a heat-cured denture base resin: An In vitro study

Contemporary Clinical Dentistry, 2018
Statement of the Problem: Disinfection of complete dentures is very crucial to prevent cross-contamination and infection. Microwave disinfection is a quick, easy, and effective means to disinfect dentures. However, the effect of repeated microwave cycles
Priti Jaiswal, Neelam Pande, Rajlakshmi Banerjee, Usha Radke   +3 more
doaj   +1 more source

Surface Structure Improvement of Mild Steel and Aluminium by Roller Burnishing [PDF]

Engineering and Technology Journal, 2015
In an experimental analysis study, a mix of burnishing parameters was varied to obtain the optimum roller conditions that produce superlative surface smoothness and hardness.
Majeed Nemat
doaj   +1 more source

The effect of glycerin on the surface hardness and roughness of nanofill composite

Conservative Dentistry Journal, 2019
Background: Present research studied the surface hardness and roughness dependence on polymerization. Polymerization of composites occurs through chain reaction that is induced by free radicals.
Diana Zakiyah, Ruslan Effendy, E. Prasetyo   +2 more
semanticscholar   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source