Results 61 to 70 of about 791,465 (263)

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

The Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla, Laura A. B. Wilson, Khizar Hayat, Michael Doube, Vuong Tan Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Daisuke Koyabu   +7 more
wiley   +1 more source

Dissecting the dissection laboratory: Elements for designing a human anatomy laboratory

Anatomical Sciences Education, EarlyView.
Abstract The human anatomy dissection laboratory is a critical component of anatomical and medical education. Development, maintenance, and stocking of these laboratory spaces have unique demands, with all of the challenges in running a laboratory with Biosafety Laboratory Level 2 (BSL‐2) classification, housing a large volume of tissues saturated with
Rhiannon E. Robinson, Abbey Breckling, Danielle N. Edwards, Nicole Geske, Burhan Gharaibeh, Bobbie J. Leeper, Molly Ostwald, Mary Schilling, Bridgett Severt, Kelsey Stevens, J. P. Swigart, Jonathan J. Wisco, Melissa Zolnierz, Jeremy J. Grachan   +13 more
wiley   +1 more source

A micromachined zipping variable capacitor

, 2010
Micro-electro-mechanical systems (MEMS) have become ubiquitous in recent years and are found in a wide range of consumer products. At present, MEMS technology for radio-frequency (RF) applications is maturing steadily, and significant improvements have ...
Pu, Suan-Hui
core   +1 more source

Sensitivity properties of SC filters derived from LC ladder prototypes [PDF]

, 1990
The sensitivity properties of a class of switched-capacitor LDI ladder filter are investigated. It is shown that, because of the frequency variation of the termination in the equivalent circuit of such filters, the passband sensitivity property of the LC
Collier, Martin, Curran, Thomas
core   +2 more sources

RNA‐centric world of retroviruses: unravelling the molecular strategies of genomic RNA packaging

Biological Reviews, EarlyView.
ABSTRACT Retroviruses constitute a unique group of RNA viruses that have profoundly influenced both evolutionary trajectories and biomedical research. Their ability to reverse transcribe and integrate into host genomes has shaped genomic architecture across species and contributed to our understanding of oncogenes, gene regulation, and RNA biology ...
Mohammad Abdullah Jehad, Suresha G. Prabhu, Lizna M. Ali, Vineeta N. Pillai, Farah Mustafa, Tahir A. Rizvi   +5 more
wiley   +1 more source

Efficiency of super capacitor banks used in regenerative breaking in hybrid electric vehicles [PDF]

, 2009
The aim of this project was to build a supercapacitor bank, dc to dc converter, and testing rig to perform efficiency testing for various configurations of the super capacitor bank against various hybrid electric vehicle regenerative braking profiles.
Napier, David
core  

Reversible Cystine Disulfide Scaffolding Enables Carbonyl Sulfide‐Mediated Intramolecular Peptide Bond Formation via Cyclocystine: Implications for Prebiotic Chemistry

Chemistry – A European Journal, EarlyView.
Cystine is unique among amino acids, in that the disulfide bond can allow intramolecular peptide bond formation. This cyclization offers potential advantages for intramolecular coupling selectivity in prebiotic peptide formation. ABSTRACT Treatment of cystine (the disulfide‐linked dimer of cysteine) with carbonyl sulfide (COS) results in the formation ...
Avinash Vicholous Dass, Arthur Srayeddin, Anthony Rullo, Jonathan Stone, Maikel Rheinstadter, Paul Harrison   +5 more
wiley   +1 more source

Família de retificadores PWM unidirecionais três-níveis híbridos a capacitor chaveado com elevado fator de potência [PDF]

, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2015.Esta tese de doutorado tem por objetivo a proposta de uma nova família de conversores ca-cc três níveis ...
Cortez, Daniel Flores
core  

Sustainability Disclosure and Firm Value: External ESG Evaluation and the Role of Advertising Intensity

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines whether sustainability reporting becomes relevant to firm value partly through externally evaluated ESG performance and whether this process varies with firms' communication environments. Using firm‐year data on Korean listed firms from 2019 to 2021, we estimate regression models with year and industry fixed effects and ...
Jaehyun Park, Hyuk Kwon
wiley   +1 more source

0.7 V Supply SC Circuits with Relaxed Slew Rate Requirements Using GB-Enhanced Multiple-Output Class AB/AB Op-Amps

Journal of Low Power Electronics and Applications
A family of improved low-voltage switched-capacitor circuits is introduced. It is based on the utilization of multiple-output class AB/AB op-amp architectures that provide true sample and hold outputs that are not subject to a reset phase as with ...
Hector Daniel Rico-Aniles, Anindita Paul, Jaime Ramirez-Angulo, Antonio Lopez-Martin, Ramon G. Carvajal   +4 more
doaj   +1 more source