Results 141 to 150 of about 153,822 (301)

STATISTICAL ESTIMATION METHODS IN VOLUNTEER PANEL WEB SURVEYS [PDF]

open access: yes, 2004
Data collected through Web surveys, in general, do not adopt traditional probability-based sample designs. Therefore, the inferential techniques used for probability samples may not be guaranteed to be correct for Web surveys without adjustment, and ...
Lee, Sunghee
core  

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Issues and challenges of using web blogs as a medium for research communication.

open access: yes, 2011
The advent of web-based technology has initially allowed millions of users to get hold of immense information and to communicate worldwide. In the field of education, for example, web-based technology has brought about significant influence in terms of ...
De Luca, Rosemary   +2 more
core   +1 more source

Context effects in Web surveys

open access: yes, 2002
The quality of data collection on the Internet depends in part on potentially biasing surface characteristics of Web pages, such as pop-up menus. Also, answering behavior to survey questions is highly sensitive to cognitive contexts evoked by other survey questions.
openaire   +3 more sources

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

National Archive of Marine Seismic Surveys Web Portal Provides Public Access to US Exclusive Economic Zone Marine Seismic Surveys

open access: yesPerspectives of Earth and Space Scientists
Seismic reflection data collected within the US Exclusive Economic Zone (EEZ) represent a scientific resource with inestimable value. The US Geological Survey (USGS), in partnership with the Bureau of Ocean Energy Management (BOEM), provide unrestricted ...
Jared Kluesner   +3 more
doaj   +1 more source

Participation in web surveys: a typology

open access: yes, 2001
'Während man in der Umfrageforschung im Wesentlichen von drei (Nicht)Antwortmustern bei Befragungen ausgeht (Unit nonresponse, Item nonresponse und vollständige Befragungsteilnahme), können bei Web-basierten Befragungen (Web surveys) Daten über den Befragungsprozess miterhoben werden, die einen erweiterten Einblick in das tatsächliche Geschehen bei der
Bosnjak, Michael   +2 more
openaire   +2 more sources

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

Multimodal Perception and Machine Learning‐Empowered Human Machine Interfaces With Double‐Network Hydrogel Fibers

open access: yesAdvanced Functional Materials, EarlyView.
This work develops polyacrylamide‐alginate (PAM‐Alg) double‐network hydrogel fibers for multimodal perception and intelligent human‐machine interfaces. The covalent‐ionic network provides high strength, toughness, and stable conductivity. Easily woven into wearables and integrated with soft robots, the fibers enable object and temperature recognitions ...
Yujue Yang   +10 more
wiley   +1 more source

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