Results 21 to 30 of about 301,031 (277)

PERFORMANCE OF MACHINE LEARNING ALGORITHMS FOR MAPPING AND FORECASTING OF FLASH FLOOD SUSCEPTIBILITY IN TETOUAN, MOROCCO [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Since the industrial revolution, the world is experiencing a huge change in its climate, which causes many imbalances such as flash floods (FF).
E. M. Sellami, M. Maanan, H. Rhinane
doaj   +1 more source

A scattering of orders [PDF]

open access: yes, 2012
A linear ordering is scattered if it does not contain a copy of the rationals. Hausdorff characterised the class of scattered linear orderings as the least family of linear orderings that includes the class $ \mathcal B$ of well-orderings and reversed ...
Abraham, Uri   +4 more
core   +3 more sources

Accuracy of Transvaginal Ultrasound in the Diagnosis of Intrauterine Lesions

open access: yesRevista Brasileira de Ginecologia e Obstetrícia, 2021
Objective To evaluate the accuracy of transvaginal ultrasound in the diagnosis of intrauterine lesions, using hysteroscopy as the gold standard. Methods This was a prospective observational study with 307 patients.
Adriana Elisa de Miranda Murta Pereira   +3 more
doaj   +1 more source

Comparación de la prueba de inmunofluorescencia indirecta, un inmunoensayo enzimático y la prueba comercial Chagatek para la detección de anticuerpos anti-Trypanosoma cruzi.

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2004
La enfermedad de Chagas constituye un problema de salud pública, particularmente en la región oriental de Colombia. Debido a la migración de la población de las áreas rurales hacia los centros urbanos, la transmisión transfusional se torna cada vez mayor.
Clara Enciso   +6 more
doaj   +1 more source

Rapid Identification of Main Vegetation Types in the Lingkong Mountain Nature Reserve Based on Multi-Temporal Modified Vegetation Indices

open access: yesSensors, 2023
Nature reserves are among the most bio-diverse regions worldwide, and rapid and accurate identification is a requisite for their management. Based on the multi-temporal Sentinel-2 dataset, this study presents three multi-temporal modified vegetation ...
Wenjing Fang   +4 more
doaj   +1 more source

Formation of Power-law Energy Spectra in Space Plasmas by Stochastic Acceleration due to Whistler-Mode Waves [PDF]

open access: yes, 1998
A non-relativistic Fokker-Planck equation for the electron distribution function is formulated incorporating the effects of stochastic acceleration by whistler-mode waves and Coulomb collisions.
Armstrong   +26 more
core   +2 more sources

Using RPAS Multi-Spectral Imagery to Characterise Vigour, Leaf Development, Yield Components and Berry Composition Variability within a Vineyard

open access: yesRemote Sensing, 2015
Implementation of precision viticulture techniques requires the use of emerging sensing technologies to assess the vineyard spatial variability. This work shows the capability of multispectral imagery acquired from a remotely piloted aerial system (RPAS),
Clara Rey-Caramés   +4 more
doaj   +1 more source

Chaotic inflation, radiative corrections and precision cosmology [PDF]

open access: yes, 2008
We employ chaotic (phi^2 and phi^4) inflation to illustrate the important role radiative corrections can play during the inflationary phase. Yukawa interactions of phi, in particular, lead to corrections of the form -kappa phi^4 ln(phi/mu), where kappa>0
Boubekeur   +24 more
core   +2 more sources

Kappa Distributions and Isotropic Turbulence

open access: yesEntropy, 2019
In this work, the two-point probability density function (PDF) for the velocity field of isotropic turbulence is modeled using the kappa distribution and the concept of superstatistics.
Elias Gravanis   +3 more
doaj   +1 more source

Is the Weibel instability enhanced by the suprathermal populations, or not? [PDF]

open access: yes, 2010
The kinetic instabilities of the Weibel-type are presently invoked in a large variety of astrophysical scenarios because anisotropic plasma structures are ubiquitous in space. The Weibel instability is driven by a temperature anisotropy which is commonly
Lazar, M., Poedts, S., Schlickeiser, R.
core   +2 more sources

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