Search results for "ORDER"
showing 10 items of 11015 documents
Multiparametric Rational Solutions of Order N to the KPI Equation and the Explicit Case of Order 3
2021
We present multiparametric rational solutions to the Kadomtsev-Petviashvili equation (KPI). These solutions of order N depend on 2N − 2 real parameters. Explicit expressions of the solutions at order 3 are given. They can be expressed as a quotient of a polynomial of degree 2N(N +1)−2 in x, y and t by a polynomial of degree 2N(N +1) in x, y and t, depending on 2N − 2 real parameters. We study the patterns of their modulus in the (x,y) plane for different values of time t and parameters.
Hadronic light-by-light contribution to $(g-2)_\mu$ from lattice QCD with SU(3) flavor symmetry
2020
We perform a lattice QCD calculation of the hadronic light-by-light contribution to $(g-2)_\mu$ at the SU(3) flavor-symmetric point $m_\pi=m_K\simeq 420\,$MeV. The representation used is based on coordinate-space perturbation theory, with all QED elements of the relevant Feynman diagrams implemented in continuum, infinite Euclidean space. As a consequence, the effect of using finite lattices to evaluate the QCD four-point function of the electromagnetic current is exponentially suppressed. Thanks to the SU(3)-flavor symmetry, only two topologies of diagrams contribute, the fully connected and the leading disconnected. We show the equivalence in the continuum limit of two methods of computin…
Protein levels of brain-derived neurotrophic factor in the hippocampus of low/high aerobic capacity rats
2010
Hippocrates and Plato have first documented the connection between a healthy mind and body, during a period which launched analytical thinking and philosophy in Ancient Greece. Modern research has also indicated the contribution of an active lifestyle to enhanced brain performance and decreased incidence of neurodegenerative diseases and mood disorders such as Alzheimer’s disease and depression respectively. This has been hypothesized to emerge through mechanisms which are enhanced by exercise and contribute on brain plas-ticity and health. The Neurotrophins hypothesis implicates several molecules in brain plasticity and healthy aging. Among them, Brain-derived Neurotrophic Factor (BDNF) ha…
Recenzja: J. Widacki, A. Szuba-Boroń, Sprawy o szpiegostwo przed sądami wileńskimi w okresie II RP. Przyczynek do historii zmagań polskiego wywiadu i…
2021
Problematyka badawcza, którą podjęli J. Widacki i A. Szuba-Boroń nie była dotąd przedmiotem zainteresowań naukowych. Jan Widacki podczas sprawowania misji dyplomatycznej w Wilnie kontynuował swoje zainteresowania naukowe, docierając do akt spraw o szpiegostwo z okresu międzywojennego. Natomiast Anna Szuba- -Boroń badając m.in. akta spraw o szpiegostwo zajęła się prozą Sergiusza Piaseckiego, pisarza i byłego szpiega. Obraz pogranicza, a w nim walka wywiadów sowieckiego, litewskiego oraz polskiego kontrwywiadu to niewątpliwie interesujące tło do ba-dań. Autorzy zdają sobie sprawę z ograniczeń badawczych, nie dotarli bowiem do spraw sądzonych w innych sądach okręgowych znajdujących się na tere…
Tensor tympani muscle: strange chewing muscle
2007
This work seeks to alert medical and odontological staff to understanding and using interdisciplinary handling for detecting different pathologies’ common otic symptoms. It offers better tools for this shared symptomatology during therapy’s conservative phase. Tensor tympani muscle physiology and function in the middle ear have been veiled, even when their dysfunction and anatomical relationships may explain a group of confused otic symptoms during conventional clinical evaluation. Middle ear muscles share a common embryological and functional origin with chewing and facial muscles. This article emphasizes that these muscles share a functional neurological and anatomical dimension with the …
Hipoacusia súbita: nueva pauta corticoidea intratimpánica precoz
2019
Desde hace unos años, el tratamiento intratimpánico de enfermedades como la hipoacusia súbita o la Enfermedad de Menière ha ido cobrando importancia. Cada vez han sido más los artículos y las conferencias en congresos que han profundizado en la eficacia del mismo. Hasta el momento, estos tratamientos han sido utilizados como terapias de segunda línea o como terapias de rescate ante el fracaso del tratamiento sistémico. No obstante, la efectividad de este tipo de tratamientos es significativa en comparación con placebo. Mientras que en la sordera súbita clásicamente se ha utilizado el tratamiento intratimpánico en pautas de una dosis semanal, el mismo tratamiento en la enfermedad de Menière …
Learnings from the Finnish Game Industry
2016
The motivation behind our research was the rapid growth and business wins of world-class Finnish game companies, like Supercell, as well as the success of other game companies in Finland. In particular, Supercell's growth is something that has not been heard of before and this raised the interest to research what game companies have been doing right. Supercell is not the only Finnish success. Rovio is also well known and has the roots for success from few years before. There are also other game companies in Finland that have succeeded and this motivated us to investigate what is happening behind the game industry and what could be learned from there that could be applied to other software i…
Best Practices for International eSourcing of Software Products and Services from the Service Providers' Perspective
2015
This research analyzes how eSourcing service providers can execute the Information and Communications Technology-enabled international sourcing of software-intensive systems and services (eSourcing) effectively. The extant literature falls short of providing a detailed enough set of best practices and supporting classes of information systems to help providers to manage and deliver effective services. This research presents a set of best practices for international eSourcing service providers to facilitate the execution, improvement, and management of international eSourcing services. The practices help providers to establish and execute a mature eSourcing life-cycle in order to overcome th…
Formal specification of open standards and the case of RSS v2.0
2014
Open standardization seems to be very popular among software developers as it makes the standard's adoption by the software engineering community easier and smoother. Formal specification methods, on the other hand, while very promising, are being adopted by protocol engineers very slowly; the industry seems to have little motivation to move into this, almost unknown, territory.In this paper the authors present the i) idea of applying formal methods (formal specification techniques) to open standards' specifications, and ii) an example of a formal specification of open standards, RSS v2.0 in particular. The authors support and provide evidence for the advantages of the open standards formal…
Reduced Order Models for Pricing European and American Options under Stochastic Volatility and Jump-Diffusion Models
2017
Abstract European options can be priced by solving parabolic partial(-integro) differential equations under stochastic volatility and jump-diffusion models like the Heston, Merton, and Bates models. American option prices can be obtained by solving linear complementary problems (LCPs) with the same operators. A finite difference discretization leads to a so-called full order model (FOM). Reduced order models (ROMs) are derived employing proper orthogonal decomposition (POD). The early exercise constraint of American options is enforced by a penalty on subset of grid points. The presented numerical experiments demonstrate that pricing with ROMs can be orders of magnitude faster within a give…