Results 51 to 60 of about 1,210,813 (269)

Effects of Environmental Gas and Trace Water on the Friction of DLC Sliding with Metals

Micromachines, 2017
This paper describes an experimental study on the friction of a-C:H diamond-like carbon (DLC) and ta-C DLC coatings in gas with different concentration of trace water. Pin-on-disk sliding experiments were conducted with DLC coated disks and aluminum pins
Yoshihiro Kurahashi, Hiroyoshi Tanaka, Masaya Terayama, Joichi Sugimura   +3 more
doaj   +1 more source

Future of Oil and Gas Trade of Kazakhstan in the European Union Context – Application of Time Series Analysis

Visegrad Journal on Bioeconomy and Sustainable Development, 2020
Energy is a fundamental factor in cooperation between Kazakhstan and the European Union; both sides strive for energy security but understand it differently.
Kabylda Alisher, Turčeková Natália, Čeryová Dominika, Belinska Stefaniia, Valentíni Filip   +4 more
doaj   +1 more source

Intestinal Gas [PDF]

Proceedings of the Nutrition Society, 1975
Patients with functional bowel disease commonly complain of abdominal pain, bloating, and excessive flatulence and eructation. Pain and bloating may be primarily caused by abnormal intestinal motility rather than by excessive intestinal gas. As yet there are no data available that prove excessive flatulence is actually caused by the presence of ...
openaire   +3 more sources

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Religious Discourse on Gender Identity: Freedom of Expression or Hate Speech? A European Perspective

Religions
This paper explores the complexities arising from the intersection of religious freedom and the principles of gender equality and non-discrimination, a pressing issue within the modern European landscape.
Montserrat Gas-Aixendri
doaj   +1 more source

Synthesis of a composite inorganic membrane for the separation of nitrogen, tetrafluoromethane and hexafluoropropylene

South African Journal of Science, 2013
The advanced use of inorganic membranes, such as zeolites, in large-scale industrial processes is hindered by the inability to manufacture continuous and defect-free membranes. We therefore aimed to construct such a defect-free membrane. Various zeolites
Hertzog Bissett, Henning M. Krieg
doaj   +1 more source

Synthesis, structural characterization, and reactivity of homocatenated Ga₄ complexes with unsaturated Ga–Ga=Ga–Ga chains

Nature Communications
The homocatenation of electron-deficient Group 13 metals to form metal-metal multiple bonds through covalent self-assembly remains extremely challenging. Herein we demonstrate the synthesis and characterizations of N-heterocyclic carbene (NHC)-stabilized digallyl digallenes (1a and 1b), which exhibit unsaturated Ga-Ga=Ga-Ga chains with trans-bent ...
Ning Zhang, Bing Wang, Yanliang Wu, Wenhao Chen, Shuxia Zhu, Linfang Lu, Zhigang Ni, Di Wu   +7 more
openaire   +2 more sources

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Knowledge and Attitudes About Obstructive Sleep Apnea Among Dental Students: A Cross-Sectional Study

Current Research in Dental Sciences
Objective: Dental sleep medicine is an increasingly recognized medical specialty, but obstructive sleep apnea (OSA) frequently progresses undetected. Dentists are often the first health-care professionals to assess signs and symptoms of OSA and therefore
Selin Gas, Gülhan Yildirim
doaj   +1 more source