Results 11 to 20 of about 1,603,529 (309)

Cycle Threshold Values in the Context of Multiple RT-PCR Testing for SARS-CoV-2 [PDF]

open access: yesRisk Management and Healthcare Policy, 2021
Daniel Romero-Alvarez,1 Daniel Garzon-Chavez,2 Franklin Espinosa,3 Edison Ligña,3 Enrique Teran,2 Francisco Mora,3 Emilia Espin,4 Cristina Albán,4 Juan Miguel Galarza,4 Jorge Reyes3,5 1Biodiversity Institute and Department of Ecology & ...
Romero-Alvarez D   +9 more
doaj   +2 more sources

A mixed distribution to fix the threshold for Peak-Over-Threshold wave height estimation [PDF]

open access: yes, 2022
Modelling extreme values distributions, such as wave height time series where the higher waves are much less frequent than the lower ones, has been tackled from the point of view of the Peak-Over-Threshold (POT) methodologies, where modelling is based on
Hervás Martínez, César   +6 more
core   +1 more source

Perimetric Calculator

open access: yesOftalʹmologiâ, 2020
The paper considers the problems of the early glaucoma diagnosis before the development of the marked glaucomatous optic neuropathy. Special attention is paid to the methods of computer perimetry, which are important in diagnosing the presence or ...
O. L. Fabrikantov   +2 more
doaj   +1 more source

Modernaspects ofensuring economic securityin Uzbekistan [PDF]

open access: yesЭкономика региона, 2012
This paper reveals the dynamics of the main indicators of Uzbekistan’seconomic security at the present stage of development. Particular attention is paid to macro-and mesoeconomic aspects of sustainable development of national economy, implementation of
Alisher Fayzievich Rasulev   +1 more
doaj   +1 more source

Dehydogenase Activity in Soils: Influence of Copper, Lead, Cadmium and Varying Soil Types

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2022
Soil quality and health are currently tipping points in soil science which will decide if the bearing capacity of our food system will last to feed 10 billion of people in the near future.
Klaus SCHALLER, Gudrun BEICKLER
doaj   +1 more source

Mapping the Natural Distribution of Bamboo and Related Carbon Stocks in the Tropics Using Google Earth Engine, Phenological Behavior, Landsat 8, and Sentinel-2

open access: yesRemote Sensing, 2020
Although vegetation phenology thresholds have been developed for a wide range of mapping applications, their use for assessing the distribution of natural bamboo and the related carbon stocks is still limited, especially in Southeast Asia.
Manjunatha Venkatappa   +4 more
doaj   +1 more source

ACUTE ISSUES OF THE ANALYSIS OF THE COMPANIES’ ECONOMIC SECURITY

open access: yesУчёт. Анализ. Аудит, 2019
Questions about economic security of the enterprise are becoming particularly relevant nowadays, due to the deterioration of external and international situation and as the result of the crisis in the economy.
VALERY Pozdeev
doaj   +1 more source

Threshold effects in cointegrating relationships [PDF]

open access: yes, 2006
In this paper, we introduce threshold-type nonlinearities within a single-equation cointegrating regression model and propose a testing procedure for testing the null hypothesis of linear cointegration vs. cointegration with threshold effects.
Gonzalo, Jesús   +4 more
core   +1 more source

Electromyography-based fatigue assessment of an upper body exoskeleton during automotive assembly

open access: yesWearable Technologies, 2022
The purpose of this study was to assess an upper body exoskeleton during automotive assembly processes that involve elevated arm postures. Sixteen team members at Toyota Motor Manufacturing Canada were fitted with a Levitate Airframe, and each team ...
Jason C. Gillette   +2 more
doaj   +1 more source

Proposed Use of Monte Carlo Simulated Images to Evaluate the Accuracy of Measurements on X-Ray Computed Tomography

open access: yesMeasurement Science Review, 2018
X-ray computed tomography (CT) is increasingly recognized as a promising measuring technique for dimensional metrology. Various methods are being developed to improve measurement accuracy.
Kowaluk Tomasz   +4 more
doaj   +1 more source

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