Results 71 to 80 of about 1,402,082 (296)

Another Formulation of the Wick's Theorem. Farewell, Pairing?

open access: yes, 2015
The algebraic formulation of Wick's theorem that allows one to present the vacuum or thermal averages of the chronological product of an arbitrary number of field operators as a determinant (permanent) of the matrix is proposed.
Beloussov, Igor V.
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

The Professional Practice and Professional Development of Mathematics Teachers

open access: yesSisyphus, 2013
Didactics of mathematics has developed internationally as a scientific field of studies in the late 1960s in the wake of the modern mathematics movement.
João Pedro da Ponte
doaj   +1 more source

Covering techniques and rational points on some genus 5 curves

open access: yes, 2015
We describe a method that allows, under some hypotheses, to compute all the rational points of some genus 5 curves defined over a number field. This method is used to solve some arithmetic problems that remained open.Comment: Contemporary Mathematics AMS,
Gonzalez-Jimenez, Enrique
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Exploring the intersection of metaverse and mathematics: a visual analysis of bibliometric networks

open access: yesDiscover Education
The use of metaverse in mathematics education has revolutionized the way the subject is taught. Metaverse provides immersive and engaging experiences that enhance understanding and enable access to previously inaccessible places.
Azin Yazdi
doaj   +1 more source

Remark on Weil's conjectures

open access: yes, 2016
We introduce a cohomology theory for a class of projective varieties over a finite field coming from the canonical trace on a C*-algebra attached to the variety.
Nikolaev, Igor
core   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan   +16 more
wiley   +1 more source

Al-Khwârizmî's Place and Importance in the History of Mathematics

open access: yesITM Web of Conferences, 2018
The aim of this study is to introduce Muḥammad ibn Mûsâ al-Khwârizmî and his works in terms of history of mathematics and mathematics education. Muḥammad ibn Musa al-Khwârizmî an Iraqi Muslim scholar and it is the first of the Muslim mathematicians who ...
DURAN Serbay, SAMANCI Hüseyin
doaj   +1 more source

IJIMAI Editor's Note - Vol. 3 Issue 4

open access: yesInternational Journal of Interactive Multimedia and Artificial Intelligence, 2015
This special issue, Teaching Mathematics using new and classic tools, concentrates on the practical and experimental teaching in advanced Mathematics in Engineering.
Angel Alberto Magreñán
doaj   +1 more source

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