Results 21 to 30 of about 943,362 (295)

Numerical Stability in Complex Summation

open access: yesپژوهش‌های ریاضی, 2021
The natural and practical condition numbers for summation of complex numbers are introduced. These numbers measure the effect of loss of significant digits on the round-off error when computing a sum in floating point arithmetic. The relationship between
Hassan Majidian   +2 more
doaj  

Representing Iranian-Islamic Identity in Iranian Contemporary Cities Structure

open access: yesJournal of Contemporary Urban Affairs, 2019
Urban identity could be considered as the result of interaction between social identity system and urbanism system. The term “Islamic City” is defined only by considering the physics of the city and reducing the concept of the city to physical elements ...
MARYAM KAMYAR, ZAHRA JAFARI SPOUREZI
doaj   +1 more source

Nutrition Labeling in the United States and the Role of Consumer Processing, Message Structure, and Moderating Conditions [PDF]

open access: yes, 2017
It has been since 1990 that the landmark Nutritional Labeling Education Act (NLEA) was passed in the United States, and since 1969 that the first White House Conference on Food, Nutrition and Health occurred.
Andrews, J. Craig   +2 more
core   +2 more sources

Modified adaptive quadrature by expansion for Laplace and Helmholtz layer potentials in 2D

open access: yesJournal of Numerical Analysis and Approximation Theory
An adaptive algorithm based on quadrature by expansion (QBX) is proposed for computing layer potentials at target points near or on a smooth boundary in \(\mathbb{R}^2\). The algorithm can be viewed as major modifications to the two-phase algorithm AQBX,
Hassan Majidian
doaj   +1 more source

On the Bernoulli Automorphism of Reversible Linear Cellular Automata

open access: yes, 2015
This investigation studies the ergodic properties of reversible linear cellular automata over $\mathbb{Z}_m$ for $m \in \mathbb{N}$. We show that a reversible linear cellular automaton is either a Bernoulli automorphism or non-ergodic.
Chang, Chih-Hung, Chang, Huilan
core   +1 more source

A comparative study of Filon-type rules for oscillatory integrals

open access: yesJournal of Numerical Analysis and Approximation Theory
Our aim is to answer the following question: "Among the Filon-type methods for computing oscillatory integrals, which one is the most efficient in practice?". We first discuss why we should seek the answer among the family of Filon-Clenshaw-Curtis rules.
Hassan Majidian
doaj   +1 more source

In Memory of Mirkasym Abdulakhatovich Usmanov (1934–2010) (on the 90th anniversary of his birth)

open access: yesИз истории и культуры народов Среднего Поволжья
The article contains information about the life and work of an outstanding orientalist scientist, a talented teacher and writer, Doctor of Historical Sciences, professor, full member of the Academy of Sciences of the Republic of Tatarstan and the ...
Bulat Lironovich Khamidullin
doaj   +1 more source

Statistical modeling of causal effects in continuous time

open access: yes, 2008
This article studies the estimation of the causal effect of a time-varying treatment on time-to-an-event or on some other continuously distributed outcome. The paper applies to the situation where treatment is repeatedly adapted to time-dependent patient
Lok, Judith J.
core   +2 more sources

Social traditions [PDF]

open access: yes, 2017
Social traditions, here defined as displaying inter-group behavioural differences acquired through social learning, have been identified in a number of primate species.
Claidiere   +13 more
core   +2 more sources

History of the Kazan Khanate in the works of S.Kh. Alishev in the 1970s

open access: yesИз истории и культуры народов Среднего Поволжья
The article, written in connection with the 95th anniversary of the Doctor of Historical Sciences, honored scientist of the Republic of Tatarstan Salyam Khatypovich Alishev (1929–2015), contains information about the scientific activities of the famous ...
Bulat Lironovich Khamidullin
doaj   +1 more source

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