Results 111 to 120 of about 27,516 (271)

Respuestas evocadas auditivas obtenidas mediante un estímulo chirp de banda ancha

open access: yesRevista Cubana de Investigaciones Biomédicas, 2019
Introducción: La estimación de la audición con Potenciales Evocados Auditivos de Tallo Cerebral (PEATC) obtenidos mediante estímulos tipo chirp constituye una alternativa de reciente aplicación.
Leidy Mabel Alvero González   +4 more
doaj  

Two‐Photon Endomicroscopy for Image‐Guided Magnetic Micro‐Agents

open access: yesSmall, EarlyView.
Image‐guided manipulation of magnetic micro‐agents requires localized fluorescence feedback capable of resolving dynamic interactions in confined environments. This study introduces a two‐photon endomicroscopy platform for real‐time motion tracking, multicolor micro‐agent discrimination, and imaging through biological tissue.
Juan J. Huaroto   +3 more
wiley   +1 more source

Chirp Signal Transform and Its Properties

open access: yesJournal of Applied Mathematics, 2014
The chirp signal exp(iπ(x-y)2) is a typical example of CAZAC (constant amplitude zero autocorrelation) sequence. Using the chirp signals, the chirp z transform and the chirp-Fourier transform were defined in order to calculate the discrete Fourier ...
Mio Horai   +2 more
doaj   +1 more source

Intravascular ultrasound chirp imaging

open access: yes, 2011
We demonstrate the feasibility of intravascular ultrasound chirp imaging. Chirp excitations were emitted with a 34 MHz single crystal intravascular transducer and compared to conventional Gaussian modulated pulses of equal peak negative pressure.
Shung, K. Kirk   +19 more
core   +1 more source

Managing Robot Perception: How Families Present Their Faces to a Toy Robot

open access: yesSymbolic Interaction, EarlyView.
Playing with a robot's face detection capabilities constitutes a praxeological approach to learning about new technology. We explore how family members discover suitable formations for a Cozmo robot to scan a single face, drawing on video recordings from Swedish homes. Taking an ethnomethodology and conversation‐analysis perspective, we demonstrate how
Hannah Pelikan   +2 more
wiley   +1 more source

Submerged geomorphic record of Quaternary palaeoshorelines: terraces and clinothems along a shelf‐edge in the Žirje Archipelago, Adriatic Sea

open access: yesBoreas, EarlyView.
Numerous studies have shown that during the Quaternary there were substantial fluctuations in sea level in response to glacial–interglacial climate variability, reaching lowstand positions up to 134 m below the present sea level (b.s.l.). These fluctuations have had a strong influence on the morphology of shallow shelf seas, which preserve evidence of ...
Ozren Hasan   +7 more
wiley   +1 more source

Examining the Impact of Derelict Pots on Blue Crab (Callinectes sapidus) Catch and Harvest Within a Recreational Fishery

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Derelict fishing gear can negatively affect marine ecosystems through mortality in coastal environments. This study explored the impact of derelict and active crab pots on recreational blue crab (Callinectes sapidus) catch rates and landings in a Mid‐Atlantic estuary by deploying experimental pots in four habitat strata within three sections ...
Randy J. Feris Serrano   +5 more
wiley   +1 more source

Enacting Everyday Linguistic Citizenship: Language Life and Multi‐Membership Among Young Malaysian Chinese Immigrants in Australia

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT This article examines the language life of young Malaysian Chinese immigrants in Australia and their construction of multi‐membership as reflected in their daily language behaviors. It develops the concept of everyday linguistic citizenship and uses this concept as a theoretical lens to understand how the young adults build, maintain, and ...
Xiaoyi Zhang   +2 more
wiley   +1 more source

Caring for the institution: An ethnography of quality assurance policy in U.S. rural primary care

open access: yesMedical Anthropology Quarterly, EarlyView.
Abstract Based on mixed‐methods, ethnographic research in a geographically isolated rural medical center in the upper midwestern United States, this paper explores the social implications of healthcare quality assurance policies highly reliant on managerial logics, including measurement and monitoring programs.
Chloe L. Warpinski
wiley   +1 more source

Analysis of chirp characteristics of DFB lasers and integrated laser-modulators

open access: yes, 2004
A new method of analyzing the chirp characteristics of directly modulated lasers and integrated laser-modulators is presented in this paper. Phase-circuit has been introduced into the circuit model of distributed feedback (DFB) lasers in the analysis ...
Zhu NH   +2 more
core  

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