Results 41 to 50 of about 1,285,218 (307)

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Analgesic Effects of Oxycodone in Combination With Risperidone or Ziprasidone: Results From a Pilot Randomized Controlled Trial in Healthy Volunteers

open access: yesFrontiers in Pain Research, 2022
Background and ObjectivesPatients taking opioids are at risk of developing dependence and possibly abuse. Given the role of the mesolimbic dopamine system in opioid reward, blocking dopamine D2 receptors should limit the abuse liability of opioid ...
Ameet S. Nagpal   +8 more
doaj   +1 more source

Remarks in San Antonio, Texas [PDF]

open access: yes, 1984
Speech for campaign rally at San Antonio, Texas. References Texas Democratic candidates and politicians.https://ir.lawnet.fordham.edu/vice_presidential_campaign_speeches_1984/1000/thumbnail ...
Ferraro, Geraldine
core   +1 more source

Resolving the Structural Duality of Graphene Grain Boundaries

open access: yesAdvanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo   +11 more
wiley   +1 more source

Understanding Questions and Concerns Regarding COVID-19 and the COVID-19 Vaccine Among Populations Presenting at a COVID-19 Vaccine Clinic Hub: A Qualitative Study

open access: yesJournal of Primary Care & Community Health, 2022
Background: Skepticism among the public surrounding the COVID-19 vaccine is still prevalent despite vaccine-positive communication and many Americans having already received the vaccine.
Hari N. Krishnakumar   +13 more
doaj   +1 more source

Vision-based interface applied to assistive robots [PDF]

open access: yes, 2012
This paper presents two vision-based interfaces for disabled people to command a mobile robot for personal assistance. The developed interfaces can be subdivided according to the algorithm of image processing implemented for the detection and tracking of
López Celani, Natalia Martina   +4 more
core   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

open access: yesAdvanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas   +11 more
wiley   +1 more source

Evaluation of healing at molar extraction sites with ridge preservation using a non‐resorbable dense polytetrafluoroethylene membrane: A four‐arm cohort prospective study

open access: yesClinical and Experimental Dental Research, 2021
Objectives To examine ridge dimensional changes and histologic parameters of healing when ridge preservation (RP) was performed at molar sites using dense polytetrafluoroethylene (dPTFE) membrane alone, without a bone graft. Material and Methods Eighteen
Arwa M. Al Hugail   +8 more
doaj   +1 more source

Archaeological Monitoring for San Antonio Water Systems: Henry B. Gonzalez Convention Center Expansion [PDF]

open access: yes, 1998
In 1997 the Center for Archaeological Research (CAR) of The University of Texas at San Antonio (UTSA) conducted archaeological investigations for San Antonio Water Systems (SAWS) in conjunction with sewer and water-line installations for the Henry B ...
Cox, I. Waynne, Tennis, Cynthia L.
core   +2 more sources

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

open access: yesAdvanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno   +16 more
wiley   +1 more source

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