Results 81 to 90 of about 922,034 (400)
Low cost instrumentation amplifier [PDF]
, 1974 Amplifier can be used for many applications requiring high input impedance and common mode rejection, low drift, and gain accuracy on order of one percent. Performance of inexpensive amplifier approaches that of some commercial instrumentation amplifiers
Sturman, J. C.
core +1 more source
Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
FEBS Letters, EarlyView.Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source
Enhancing Signal Purity in Josephson Structure Measurements
Advanced Physics ResearchSuperconducting Josephson structures play a significant role in quantum‐state engineering. Achieving high‐fidelity quantum state measurements in superconducting Josephson structures requires ultra‐low noise environments and robust signal purification ...
Ivan A. Nazhestkin +8 more
doaj +1 more source
The role of histone modifications in transcription regulation upon DNA damage
FEBS Letters, EarlyView.This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley +1 more source
New Nanocrystalline Materials for Power Electronics Applications
Advances in Electrical and Electronic Engineering, 2008 New nanocrystalline materials for the applications in the power electronics systems are developed and tested.These materials are intended to be used in the magnetic circuits of switching-mode power supplies (SMPS).
Elemir Usak +3 more
doaj
FEBS Letters, EarlyView.Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley +1 more source
Slew Rate and Step Response of the Noninverting Structure with an Operational Amplifier
Advances in Electrical and Electronic Engineering, 2004 When a large-step input voltage is applied to an operational amplifier (OP AMP) input, the output waveform reises with a finite slope called the slex rate which is due to an amplifier input stage current limiting (Im) and because of a compensating ...
Josef Puncochar
doaj
Function‐driven design of a surrogate interleukin‐2 receptor ligand
FEBS Letters, EarlyView.Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang +9 more
wiley +1 more source
2.45 GHz Active Isolator based on asymmetric coupler
Automatika, 2021 An active isolator achieving both high isolation and low insertion loss at 2.45 GHz is proposed. The isolator is based on an asymmetric coupler and is designed to leverage the gain and reverse isolation of an amplifier and coupling coefficients between ...
Ui-Gyu Choi +3 more
doaj +1 more source
Transistor circuit increases range of logarithmic current amplifier [PDF]
, 1966 Circuit increases the range of a logarithmic current amplifier by combining a commercially available amplifier with a silicon epitaxial transistor.
Gilmour, G.
core +1 more source