Results 151 to 160 of about 132,336 (328)

From Stripes to Hexagons: Strain‐Induced 2D Pb Phases Confined Between Graphene and SiC

open access: yesAdvanced Materials Interfaces, EarlyView.
Intercalating Pb beneath epitaxial graphene on SiC(0001) stabilizes distinct 2D phases at the interface. Using LEED, LEEM, SEM, and STM, the formation of characteristic stripe and hexagonal Pb monolayer structures is observed, and atomistic models are provided.
Markus Gruschwitz   +6 more
wiley   +1 more source

“Three‐Color” Chemical Selectivity between Oxide, Nitride, and Silicon: Area‐Selective Deposition of Metal Oxide and Polymer on SiN and Si‐H versus SiO2

open access: yesAdvanced Materials Technologies, EarlyView.
Molybdenum hexafluoride as a pretreatment is able to create a chemical contrast between SiN and SiO2 surfaces via selective fluorine passivation of the oxide. One dose of MoF6 enabled 9.7 nm of selective deposited TiO2 on SiN versus SiO2 with selectivity >0.92 on a nanoscale SiN/SiO2 patterned surface.
Jeremy M. Thelven   +6 more
wiley   +1 more source

Mapping of low-voltage bridges with a high-density multipolar catheter in a child with atrioventricular nodal reentry tachycardia

open access: yesHeartRhythm Case Reports, 2020
Fabrizio Drago, MD   +3 more
doaj   +1 more source

Diagnostic Dilemma of Cardiac Syncope in Pediatric Patients [PDF]

open access: yes, 2008
Aims Syncope is defined as temporary loss of consciousness and postural tone resulting from an abrupt transient decrease in cerebral blood flow. The present work aimed at determining how diagnostic tests are used in the evaluation of pediatric
Aya M Fattouh   +3 more
core  

Dynamic and Reconfigurable Acoustic Fields Enabled by Morphing Fluidic Holographic Lenses

open access: yesAdvanced Materials Technologies, EarlyView.
Real‐time reconfiguration of the acoustic field is achieved using fluidic holographic lenses that dynamically morph their structure via controlled volume changes. This compact, programmable approach eliminates the need for active elements like phased arrays, enabling high‐resolution, adaptive wavefront control with enhanced flexibility for diverse ...
Moustafa Sayed Ahmed, Shima Shahab
wiley   +1 more source

Convulsive syncope as presenting symptom of carotid body tumors: Case series

open access: yesJournal of Research in Medical Sciences, 2013
Carotid body tumor (CBT) is paraganglioma and mainly found in the carotid bifurcation. The manifestations of the tumor are variable; in most cases, it presents as a non-symptomatic slow-growing mass, rarely compression of carotid body induces bradycardia
Ali Akbar Beigi   +3 more
doaj  

Sunscreen Composed of Nanofiber with Enhanced UV Protection and Thermal Comfort for Human Skin

open access: yesAdvanced Materials Technologies, EarlyView.
A new type of sunscreen composed of nanofibers is presented that enhances UV scattering and reflection, in contrast to conventional sunscreens that rely on absorption agents to block UV radiation. This scattering‐based UV protection helps minimize thermal stress by reflecting UV energy.
James Laurence Ruello   +3 more
wiley   +1 more source

Size Effect on Photothermal Heating Ability of Gold Bipyramids

open access: yesAdvanced Optical Materials, EarlyView.
Gold bipyramids with identical spectral characteristics exhibits opposite volume‐dependent photo‐thermal heating at single‐particle versus collective scales. The thermal energy can be used to generate mechanical work by powering Stirling engine. Abstract Gold nanoparticles (AuNPs) exhibit photothermal properties that are fundamental to biomedical and ...
Aadesh Mohan Naik   +7 more
wiley   +1 more source

Electrocardiography in horses, part 2: how to read the equine ECG [PDF]

open access: yes, 2010
The equine practitioner is faced with a wide variety of dysrhythmias, of which some are physiological. The recording of an exercise electrocardiogram (ECG) can help distinguish between physiological and pathological dysrhythmias, underlining the ...
De Clercq, Dominique   +5 more
core  

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