Results 21 to 30 of about 797,086 (243)

Low-voltage CMOS analog four quadrant multiplier based on flipped voltage followers

2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512), 2003
A compact CMOS low-voltage analogue four quadrant transconductance multiplier based on flipped voltage followers and transistors operating in triode mode is introduced and experimentally verified. The circuit features high bandwidth, low distortion, and operates with a single supply voltage of 1.5 V in a 0.5 µm CMOS technology.
Jaime Ramírez-Angulo, Shanta Thoutam, Antonio J. López-Martín, Ramón González Carvajal   +3 more
openaire   +1 more source

Compact Two-Stage CMOS Operational Amplifier with Enhanced Gain and Bandwidth via Cascode and Negative Capacitance Techniques [PDF]

Journal of Applied Research in Electrical Engineering
This paper presents a compact two-stage CMOS operational amplifier with high gain and wide bandwidth, designed using standard TSMC 0.18 µm CMOS technology.
MohammadMehdi Derakhshannia, Mohsen Shakiba, Maryam Shakiba   +2 more
doaj   +1 more source

High Speed Voltage Followers- Flipped & Translinear Voltage Follower

IOSR journal of VLSI and Signal Processing, 2013
This paper describes two different topology of voltage follower class-A voltage followers and classAB voltage follower like flipped voltage follower and translinear voltage follower. Each follower has its own advantage and several limitations. The circuits are simulated in CMOS 0.18μm process technology.
openaire   +1 more source

Design and analysis of low noise, low power OTA considering design trade-offs for biomedical applications

Results in Engineering
This paper details the design and implementation of four different OTAs optimized for low noise, low power consumption and high signal fidelity. The following four OTAs—NMOS Conventional Voltage Follower OTA, PMOS Conventional Voltage Follower OTA, NMOS ...
J B Yogeshwar, Naushad Manzoor Laskar, Alan Samuel, Alwin Solomon, Vikas Vijayvargiya   +4 more
doaj   +1 more source

Flipped Voltage Follower Ddesign Technique for Maximised Linear Operation

Engineering, 2010
The results of comparative DC simulation tests confirm that a proposed modification to the feedback circuit of a Flipped Voltage Follower (FVF), to produce a type of ‘Folded’ Flipped Voltage Follower (FFVF), is capable of maximising the linear DC operating range for given values of supply rail voltage and operating current.
Ching-Mei Chen, Khaled Hayatleh, Bryan Hart, John Lidgey   +3 more
openaire   +3 more sources

Pathways and pitfalls: a qualitative study of student experiences in biomedical science education

FEBS Open Bio, EarlyView.
Biomedical science students from underrepresented backgrounds face barriers including financial strain, disrupted laboratory access and cultural exclusion. Peer networks provide vital support when institutional systems are difficult to navigate. To create inclusive learning environments and achieve academic success, educators should blend active, hands‐
Olivia J. Russell, Cassy Ross, Panagiota S. Filippou, Bruno Silvester Lopes, Dominic Gilchrist, Paul Dean, Kamar Ameen‐Ali, Tora K. Smulders‐Srinivasan, Ahmad A. Khundakar   +8 more
wiley   +1 more source

Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan, Marco Pitteri, Michael Foster, Sara Collorone, Sara Salama, Elisa Colato, Ferran Prados, Baris Kanber, Marios Yiannakas, Claudia A. M. Gandini Wheeler‐Kingshott, Indran Davagnanam, Frederik Barkhof, Declan Chard, Olga Ciccarelli, Ahmed Toosy   +14 more
wiley   +1 more source

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran, Malo Gaubert, Alice Dufey, Elise Bannier, Audrey Rico, Jean‐Christophe Ferré, Raphaël Chouteau, Laure Michel, Emmanuelle Le Page, Virginie Callot, Bertrand Audoin, Sarah Demortière, Benoît Combès, Anne Kerbrat   +13 more
wiley   +1 more source

Sex‐Stratified Association of Regional Dopamine Transporter Binding With Disease Progression in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the clinical relevance of dopamine transporter single‐photon emission computed tomography (DAT‐SPECT) abnormalities in amyotrophic lateral sclerosis (ALS), with a prespecified focus on sex‐stratified associations with disease progression and short‐term prognosis.
Tomoya Kawazoe, Keizo Sugaya, Kentaro Hayashi, Keiko Hino, Yasuhiro Nakata, Kota Bokuda, Toshio Shimizu, Kazushi Takahashi   +7 more
wiley   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source