Results 31 to 40 of about 917,064 (202)

Helicobacter pylori and gastric cancer [PDF]

open access: yesArchive of Oncology, 2003
BACKGROUND: Helicobacter pylori (H. pylori) is classified as a Group 1 carcinogen, because H. pylori infection considerably increases the risk of gastric cancer development. METHODS: The study involved a total of 191 patients divided into two groups. The
Otašević Marica M.   +4 more
doaj   +1 more source

Generalized transition fronts for one-dimensional almost periodic Fisher-KPP equations [PDF]

open access: yes, 2016
This paper investigates the existence of generalized transition fronts for Fisher-KPP equations in one-dimensional, almost periodic media. Assuming that the linearized elliptic operator near the unstable steady state admits an almost periodic ...
Nadin, Grégoire, Rossi, Luca
core   +5 more sources

FOURIER YAKLAŞIMI İLE FISHER HİPOTEZİNİ YENİDEN GÖZDEN GEÇİRMEK: TÜRKİYE ÖRNEĞİ

open access: yesCumhuriyet Üniversitesi İktisadi ve İdari Bilimler Dergisi, 2019
Enflasyon ve faiz arasındaki ilişki hemekonomistler hem de politika yapıcılar için uzun yıllar araştırma konusuolmuştur. Faiz ile enflasyon arasındaki bu ilişkiyi anlamak için Fisherhipotezi bir temel olarak büyük önem arz etmektedir.
Mehmet Songur
doaj  

Stochastic Complexity of Rayleigh and Rician Data with Normalized Maximum Likelihood

open access: yesStats
The Rician distribution, which arises in radar, communications, and magnetic resonance imaging, is characterized by a noncentrality parameter and a scale parameter.
Aaron Lanterman
doaj   +1 more source

Colemanus keeleyorum (Braconidae, Ichneutinae s. l.): a new genus and species of Eocene wasp from the Green River Formation of western North America

open access: yesJournal of Hymenoptera Research, 2015
A new genus and species of Ichneutinae s. l., Colemanus keeleyorum Fisher, is described from the Eocene Green River Formation in Colorado, USA. Colemanus was placed on a phylogenetic hypothesis using morphological data.
J. Fisher, Erika Tucker, Michael Sharkey
doaj   +1 more source

Does Amount of Information Support Aesthetic Values?

open access: yesFrontiers in Neuroscience, 2022
Obtaining information from the world is important for survival. The brain, therefore, has special mechanisms to extract as much information as possible from sensory stimuli.
Norberto M. Grzywacz   +3 more
doaj   +1 more source

On Comparison of Hypothesis Tests in the Bayesian Framework without Loss Function [PDF]

open access: yes, 2004
The problem is how to compare the quality of different hypothesis tests in a Bayesian framework without introducing a loss function. Three different linear orders on the set of all possible hypothesis tests are studied.
Gercsik, Vladimir, Kelbert, Mark
core   +2 more sources

Consistency and Asymptotic Normality of the Maximum Likelihood Estimator in GaGLM

open access: yesIEEE Access, 2022
The Gamma distribution based generalized linear model ( $Ga$ GLM) is a kind of statistical model feasible for the positive value of a non-stationary stochastic system, in which the location and the scale are regressed by the corresponding explanatory ...
Benchao Wang, Pan Qin, Hong Gu
doaj   +1 more source

Las hipótesis de Fisher en Latinoamérica: un análisis de cointegración [PDF]

open access: yes, 2016
En este artículo se evalúan las hipótesis de Fisher y de integración de los mercados latinoamericanos mediante pruebas de cointegración y de cambio estructural endógeno.
Cruz-Ruiz, Fidel Gustavo   +1 more
core   +3 more sources

Panel Unit Root Tests by Combining Dependent 𝑃 Values: A Comparative Study

open access: yesJournal of Probability and Statistics, 2011
We conduct a systematic comparison of the performance of four commonly used 𝑃 value combination methods applied to panel unit root tests: the original Fisher test, the modified inverse normal method, Simes test, and the modified truncated product method (
Xuguang Sheng, Jingyun Yang
doaj   +1 more source

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