Results 21 to 30 of about 13,725 (203)

Pair creation by a photon in an electric field [PDF]

, 2009
The process of pair creation by a photon in a constant and homogeneous electric field is investigated basing on the polarization operator in the field. The total probability of the process is found in a relatively simple form.
Adler, Baier, Baier, Baier, Baier, Baier, Batalin, Bateman, Klepikov, Monin, Narozhny, Nikishov, Sauter, Schwinger, V.M. Katkov, V.N. Baier   +15 more
core   +1 more source

From Squaric Acid Amides (SQAs) to Quinoxaline-Based SQAs─Evolution of a Redox-Active Cathode Material for Organic Polymer Batteries

Journal of the American Chemical Society, 2023
The search for new redox-active organic materials (ROMs) is essential for the development of sustainable energy-storage solutions. In this study, we present a new class of cyclobuta[b]quinoxaline-1,2-diones or squaric acid quinoxalines (SQXs) as highly promising candidates for ROMs featuring exceptional stability and high redox potentials. While simple
Marcel E. Baumert, Victoria Le, Po-Hua Su, Yosuke Akae, Dominic Bresser, Patrick Théato, Max M. Hansmann   +6 more
openaire   +4 more sources

Clinical impact of digital and conventional PET control databases for semi-quantitative analysis of brain 18F-FDG digital PET scans

EJNMMI Research, 2020
Purpose Digital PET cameras markedly improve sensitivity and spatial resolution of brain 18F-FDG PET images compared to conventional cameras. Our study aimed to assess whether specific control databases are required to improve the diagnostic performance ...
Elise Mairal, Matthieu Doyen, Thérèse Rivasseau-Jonveaux, Catherine Malaplate, Eric Guedj, Antoine Verger   +5 more
doaj   +1 more source

Integration of Fuzzy Set Theory and Neutrosophic Sets for Qualitative and Quantitative Analysis in Inclusive Service to Native Communities of Ucayali [PDF]

Neutrosophic Sets and Systems
This research focuses on the examination of public records and their potential to deliver inclusive service to the native populations of Ucayali, a key difficulty in the administration of public services in varied and culturally rich areas.
Teófilo Meza Taipe, Jacobo Romero Quispe, Eladio Guzmán Villa, Patricio Aparicio Santiago Saturnino, Edwin Collazos Paucar, Adrián Alejandro Flores Konja   +5 more
doaj   +1 more source

Incidence of ineffective safety margin testing (<10 J) and efficacy of routine subcutaneous array insertion during implantable cardioverter defibrillator implantation

Indian Pacing and Electrophysiology Journal, 2016
The purpose of this study was to assess (1) the incidence of safety margin testing
Marc-Alexander Ohlow, Marcus Roos, Bernward Lauer, J. Christoph Geller   +3 more
doaj   +1 more source

SQAS, social responsibility assessment or instrumentalisation?

WPOM-Working Papers on Operations Management, 2022
Safety and Quality Assessment for Sustainability (SQAS) is evaluation promoted by an as-sociation of chemical companies called CEFIC. Its vocation is to serve as a tool for the as-sessment of safety, quality, security, health, environmental and corporate social responsi-bility (CSR) of the logistic suppliers, but the activity of the companies that ...
openaire   +3 more sources

N=2 SUGRA BPS Multi-center solutions, quadratic prepotentials and Freudenthal transformations [PDF]

, 2014
We present a detailed description of N=2 stationary BPS multicenter black hole solutions for quadratic prepotentials with an arbitrary number of centers and scalar fields making a systematic use of the algebraic properties of the matrix of second ...
Fernandez-Melgarejo, J. J., Torrente-Lujan, E.   +1 more
core   +2 more sources

Analysis of the Evolution of Social Competence in Students Through Research Methods Based on Neutrosophic Sets [PDF]

Neutrosophic Sets and Systems
The present study investigates the evolution of social competence in students through research methods based on set theory and the application of neutrosophic sets. The central question lies in how to accurately assess the development of social skills in
Huberto Tito Hinostroza Robles, María Teresa Cabanillas López, Fidel Denis Huasco Espinoza   +2 more
doaj   +1 more source

Validation of ultrasonographic muscle thickness measurements as compared to the gold standard of computed tomography in dogs [PDF]

PeerJ, 2017
Objective The objective was to quantitatively evaluate the validity of ultrasonographic (US) muscle measurements as compared to the gold standard of computed tomography (CT) in the canine. Design This was a prospective study.
Lindsey E. Bullen, Maria G. Evola, Emily H. Griffith, Gabriela S. Seiler, Korinn E. Saker   +4 more
doaj   +2 more sources

Assessing Electrocardiogram and Respiratory Signal Quality of a Wearable Device (SensEcho): Semisupervised Machine Learning-Based Validation Study

JMIR mHealth and uHealth, 2021
BackgroundWith the development and promotion of wearable devices and their mobile health (mHealth) apps, physiological signals have become a research hotspot.
Haoran Xu, Wei Yan, Ke Lan, Chenbin Ma, Di Wu, Anshuo Wu, Zhicheng Yang, Jiachen Wang, Yaning Zang, Muyang Yan, Zhengbo Zhang   +10 more
doaj   +1 more source