Results 61 to 70 of about 10,234 (185)

UnnMindFlex: A prototype mobile application and case study on HRV-guided cognitive enhancement

Journal on Interactive Systems
In today’s demanding world, cognitive fitness plays a vital role in academic success and overall well-being, particularly for students facing academic challenges.
Samuel Olawuwo, Valeriia Viakhireva, Andrey Demarev, Chalachew Kassaw, Nikolay Nazarov, Valeriia Demareva   +5 more
doaj   +1 more source

A New Way to Evaluate Lobachevsky’s Integrals

International Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
This article examines the family of Lobachevsky’s integrals and presents an alternative derivation for the four convergent cases. The approach relies on Leibniz’s parameter differentiation technique, partial fraction decomposition, and expansions in power series.
Rubén Darío Santaella Forero, Rosalba Mendoza Suárez, Juan Carlos López Carreño, Shikha Binwal   +3 more
wiley   +1 more source

Interactions of a $j=1$ boson in the $2(2j+1)$ component theory

, 1995
The amplitudes for boson-boson and fermion-boson interactions are calculated in the second order of perturbation theory in the Lobachevsky space. An essential ingredient of the used model is the Weinberg's $2(2j+1)$ component formalism for describing a ...
A. A. Cheshkov, A. A. Cheshkov, A. A. Cheshkov, A. A. Logunov, A. D. Linkevich, A. O. Barut, A. Sankaranarayanan, A. Sankaranarayanan, A. Sankaranarayanan, C. L. Hammer, Chou, D. Shay, D. V. Ahluwalia, D. V. Ahluwalia, D. V. Ahluwalia, D. V. Ahluwalia, D. V. Ahluwalia, D. V. Ahluwalia, D. V. Ahluwalia, E. P. Wigner, F. Rohrlich, H. W. Crater, J. H. Field, J. Joos, M. Consoli, M. W. Evans, N. A. Chernikov, N. A. Chernikov, N. B. Skachkov, N. B. Skachkov, N. B. Skachkov, R. H. Tucker, R. N. Faustov, S. Bruce, S. Weinberg, S. Weinberg, S. Weinberg, T. Ohmura, V. G. Kadyshevsky, V. G. Kadyshevsky, V. G. Kadyshevsky, V. P. Kozhevnikov, V. V. Dvoeglazov, V. V. Dvoeglazov, V. V. Dvoeglazov, V. V. Dvoeglazov, V. V. Dvoeglazov, V. V. Dvoeglazov, Valeri V. Dvoeglazov, Yu. M. Shirokov, Yu. M. Shirokov, Yu. M. Shirokov, Yu. M. Shirokov, Yu. V. Novozhilov   +53 more
core   +1 more source

BOUNDARY REPRESENTATION FOR LOBACHEVSKY SPACES

Tambov University Reports. Series: Natural and Technical Sciences, 2016
For canonical representations on a Lobachevsky space, a description of distributions concentrated at the boundary is given.
openaire   +2 more sources

On Retractions of Lobachevsky Space

Applied Mathematics, 2013
Our aim in the present article is to introduce and study new types of retractions of Lobachevsky space. Types of the deformation retracts of Lobachevsky space are presented. The relations between the folding and the deformation retract of Lobachevsky space are deduced. Types of minimal retractions of Lobachevsky space are also presented.
A. E. El-Ahmady, K. Al-Onemi
openaire   +2 more sources

Propagator on theh-deformed Lobachevsky plane [PDF]

Journal of Physics A: Mathematical and General, 1999
The action of the isometry algebra U_h(sl(2)) on the h-deformed Lobachevsky plane is found. The invariant distance and the invariant 2-point functions are shown to agree precisely with the classical ones. The propagator of the Laplacian is calculated explicitely. It is invariant only after adding a `non-classical' sector to the Hilbert space.
Madore, John, Steinacker, Harold
openaire   +2 more sources

New Adhesive Composite Barrier in Pediatric Cardiac Surgery: A Pilot Clinical Study

Journal of Cardiac Surgery, Volume 2025, Issue 1, 2025.
Objectives This study aims to assess the effectiveness of a new adhesive composite barrier for preventing scars between the sternum and the intracardiac structures. Methods A pilot, prospective, single‐center, randomized controlled study encompassing neonates with ventricular septal defect who received staged correction between January and September ...
Oleg A. Egunov, Elsa R. Mikheeva, Ivan V. Stepanov, Andrey S. Grishin, Alla A. Boshchenko, Tomás A. Salerno   +5 more
wiley   +1 more source

IT-education using intelligent learning environments

Современные информационные технологии и IT-образование, 2017
A new systematic approach for structuring of content, methodology and didactics for IT courses is proposed. A mixture of frame-based and production systems is used to represent the knowledge and organize the interactive learning.
Pavel D. Basalin , Elena A. Kumagina , Elena A. Neumark , Aleksei E. Timofeev , Irina A. Fomina , Natal'ja N. Chernyshova   +5 more
doaj   +1 more source

Enhanced Organ Protection During Cardiopulmonary Bypass in Cardiac Surgery: Synergistic Effects of Nitric Oxide and Hydrogen Therapy

Journal of Cardiac Surgery, Volume 2025, Issue 1, 2025.
Background/Aim The present study investigates the effects of isolated administration of nitric oxide (NO) and molecular hydrogen (H2), as well as their combined delivery into the gas supply line of the cardiopulmonary bypass (CPB) circuit. The primary objective is to evaluate their impact on antioxidant activity, biomarkers of myocardial injury, and ...
Vladimir Pichugin, Alexandr Volvach, Anna Deryugina, Victor Selemir, Stepan Domnin, Sergey Fedorov, Darya Danilova, Artem Starshov, Roman Trofimov, Irfan Ahmad   +9 more
wiley   +1 more source

On volumes of hyperideal tetrahedra with constrained edge lengths

, 2019
Hyperideal tetrahedra are the fundamental building blocks of hyperbolic 3-manifolds with geodesic boundary. The study of their geometric properties (in particular, of their volume) has applications also in other areas of low-dimensional topology, like ...
Frigerio, Roberto, Moraschini, Marco
core   +1 more source