Results 91 to 100 of about 854,384 (295)

Universal three input and one output current-mode filter withoutexternal passive elements [PDF]

, 1997
A new current-mode universal filter is proposed. The filter uses only operational amplifiers and operational transconductance amplifiers (OTAs) and can realise lowpass, highpass, bandpass, notch and allpass responses without changing circuit topology ...
Abuelma’atti, M.T., Alzaher, H.A.
core   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

FEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth, Moritz Koch, Le‐Han Rössner, Johanna Eichhorn, Denys Pogoryelov, Matthias P. Mayer, Jude M. Przyborski   +6 more
wiley   +1 more source

Electronically Tunable Multifunction Current Mode Filter Employing Grounded Capacitors [PDF]

Informacije MIDEM, 2023
R. Fathima, S. Perumal, V. Muniyappan, M. Faseehuddin, W. Tangsrirat   +4 more
doaj   +1 more source

VDGA-Based Resistorless Mixed-Mode Universal Filter and Dual-Mode Quadrature Oscillator

Applied Sciences
This study introduces an electronically tunable resistorless mixed-mode universal filter and dual-mode quadrature oscillator configuration utilizing merely two voltage differencing gain amplifiers and two grounded capacitors.
Orapin Channumsin, Jetwara Tangjit, Tattaya Pukkalanun, Worapong Tangsrirat   +3 more
doaj   +1 more source

VM and CM Universal Filters Based on Single DVCCTA

Active and Passive Electronic Components, 2011
A universal voltage-mode filter (VM) and a current-mode filter (CM) based on recently proposed active building block, namely, differential voltage current conveyor transconductance amplifier (DVCCTA) are proposed.
Neeta Pandey, Sajal K. Paul
doaj   +1 more source

Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system

FEBS Open Bio, EarlyView.
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková, Veronika Hovanová, Jiri Damborsky, Erik Sedlák   +3 more
wiley   +1 more source

Universal Current-Conveyor-Based Current-Mode Filter with Single Input and Five Outputs

Active and Passive Electronic Components, 1995
A new universal active current-mode filter with single input and five outputs is presented. The proposed filter avoids the use of external feedback in any part of the circuit and uses grounded resistors.
Muhammad Taher Abuelma'atti, Aamir Alam Farooqui   +1 more
doaj   +1 more source

A 0.18µm CMOS DDCCII for Portable LV-LP Filters [PDF]

, 2013
In this paper a current mode very low voltage (LV) (1V) and low power (LP) (21 µW) differential difference second generation current conveyor (CCII) is presented.
Ferri, Giuseppe, Stornelli, Vincenzo
core   +1 more source

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

FEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik, Russell Pickford, Hannah C. Timmins, Olivier Piguet, Glenda M. Halliday, Matthew C. Kiernan, Woojin Scott Kim   +6 more
wiley   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source