Results 241 to 250 of about 406,447 (269)

A mechanized urease activity assay

Enzyme and Microbial Technology, 2019
Two fully mechanized flow analysis systems for urease activity assays have been developed, characterized and compared. Both of them are based on almost the same compact system of solenoid micropumps and microvalves controlled and actuated by highly effective, low-power and economic Arduino microcontroller. For photometric detection of ammonia formed in
Bzura, Justyna, Koncki, Robert
openaire   +3 more sources

Mechanisms of Activation

1979
It is well known1–5 that molecules in gaseous media become activated in a direct collision between the translators. When a reference molecule undergoes collision with another molecule, the total kinetic energy of the two molecules is redistributed between them.
John O’M. Bockris, Shahed U. M. Khan
openaire   +1 more source

Mechanisms controlling CDK9 activity

Frontiers in Bioscience, 2006
This review primarily focuses on the mechanisms that modulate CDK9 activity and its recruitment to cellular genes, where it phosphorylates the C-terminal domain of RNA polymerase II (RNAPII) as well as negative elongation factors. CDK9 associates with each of four cyclins (T1, T2a, T2b and K), forming distinct positive transcription elongation factors (
Renee M, Marshall, Xavier, Grana
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MECHANISMS OF INFLAMMATION AND LEUKOCYTE ACTIVATION

Medical Clinics of North America, 1997
This article reviews the current status of the knowledge of mechanisms of activating inflammatory responses. It also describes inflammatory mediators, adhesion proteins, the inflammatory process itself, and the molecular mechanisms controlling inflammatory cell activation and regulation.
H, Ali, B, Haribabu, R M, Richardson, R, Snyderman   +3 more
openaire   +2 more sources

Active control of mechanical vibrations

Bell Labs Technical Journal, 2009
Recent advances in digital signal processing and actuation technology have opened the door to applying active control to reducing mechanical vibrations and acoustic noise. Because these techniques work best at lower frequency, they complement conventional passive damping techniques, which are most effective at higher frequencies.
Roger D. Benning, M. Garry Hodgins, George G. Zipfel   +2 more
openaire   +1 more source

Principles and mechanisms of CD95 activation

Biological Chemistry, 2014
Abstract CD95 (Apo1/Fas) has been originally identified as the target of cell death-inducing antibodies. The recognition of CD95 as an apoptosis-triggering receptor represents one of the early milestones in the apoptosis field. Moreover, the research on CD95-induced cell death fostered various other discoveries of broad and general relevance in cell ...
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Effect of Mechanical Activation on Leaching Behavior and Mechanism of Chalcopyrite

Mineral Processing and Extractive Metallurgy Review, 2022
, Feng Xie
exaly  

The effect of mechanical-thermal synergistic activation on the mechanical properties and microstructure of recycled powder geopolymer

Journal of Cleaner Production, 2021
Aihong Kang, Yongfan Gong, Zhengguang Wu   +2 more
exaly  

Investigation of mechanical activation effect on high-volume natural pozzolanic cements

Open Chemistry, 2022
Abdul Vahap Korkmaz
exaly  

Mechanical activation of magnesium silicates for mineral carbonation, a review

Minerals Engineering, 2018
Michael Hitch, Jiajie Li
exaly