Results 61 to 70 of about 2,183,624 (185)

Biomass of 35-year-old spruce plantations in relation to their establishment and forming on the Ural region

open access: yes, 2008
Впервые на Среднем Урале получены и проанализированы данные фитомассы 35-летних культур Picea obovata на уровнях дерева и древостоя. Составлены таблицы возрастной динамики фитомассы культур.For the first time the indices of biomass in 35-year-old man ...
Бирюкова, А. М.   +5 more
core   +1 more source

Reducing the replication time for structural estimations: A successful replication of “An Anatomy of International Trade” using GPU computing

open access: yesEconomic Inquiry, Volume 63, Issue 2, Page 424-440, April 2025.
Abstract Eaton, Kortum, and Kramarz (2011) (EKK) discovered empirical patterns from French manufacturing firms that a baseline firm heterogeneity model could not explain. The authors proposed and estimated a model that closely matches the patterns observed in French data.
Jiatong Zhong
wiley   +1 more source

Reduced length checking sequences [PDF]

open access: yes, 2002
Here, the method proposed by Ural, Wu and Zhang (1997) for constructing minimal-length checking sequences based on distinguishing sequences is improved.
Hierons, RM, Ural, H
core   +1 more source

Climatic, biogeographic and ecological factors influence the spatial patterns of odd‐ and even‐year dominance in biennial European butterflies and burnet moths

open access: yesEcological Entomology, EarlyView.
250,000 observations of 7 annual, 11 biennial and 4 flexible lepidoptera species in the Alps and over 150,000 observations of 5 biennial species from Scandinavia were analysed. Maps show distinct patterns of different species that fly predominantly in odd or even years in the researched areas.
Robert Birch   +3 more
wiley   +1 more source

The Impact of Hidradenitis Suppurativa on Sexual Function: A Multicentered Cross‐Sectional Study

open access: yesInternational Journal of Dermatology, EarlyView.
Summary of a multicenter study of 522 patients with hidradenitis suppurativa (HS) evaluating quality of life, disease severity, and sexual function. HS was associated with impaired sexual function in both women and men, with pain identified as a central driver.
Defne Özkoca   +24 more
wiley   +1 more source

PALEOMAGNETISM OF SILURIAN AND DEVONIAN VOLCANICS FROM THE CHINGIZ ISLAND ARC, KAZAKHSTAN, AND ITS BEARING ON TECTONIC EVOLUTION OF THE URAL-MONGOL BELT

open access: yesГеодинамика и тектонофизика, 2015
The tectonic and paleogeographic evolution of the Ural-Mongol belt between the cratons of Baltica, Siberia, and Tarim is the key to the formation of the Eurasian supercontinent during Paleozoic time, but the views on this complicated process remain very ...
Natalia M. Levashova   +3 more
doaj   +1 more source

A deeper look into the diversity of suckermouth catfishes (Mochockidae: Chiloglanis Peters 1868) of southern Africa, with the description of four new species

open access: yesJournal of Fish Biology, EarlyView.
Abstract Suckermouth catfishes of the genus Chiloglanis Peters 1868 are small and predominantly rheophilic fishes endemic to Africa. This genus is quite diverse, with over 70 species distributed across most river systems on the continent, except for the Cape Fold ecoregion and most of northern Africa.
Tadiwa Isaac Mutizwa   +2 more
wiley   +1 more source

Methodology for Transient Stability Enhancement of Power Systems Based on Machine Learning Algorithms and Fast Valving in a Steam Turbine

open access: yesMathematics
This study presents the results of the development and testing of a methodology for selecting parameters of the characteristics of fast valving in a steam turbine for emergency power system management to maintain dynamic stability based on machine ...
Mihail Senyuk   +5 more
doaj   +1 more source

Some petrophytic steppe communities of the Middle Ural

open access: yesVegetation of Russia, 2018
Steppe herbaceous communities on rocky substrates are widely distributed in the Uralwithin the steppe and forest-steppe zones. In the Southern Ural, in the region of high anthropogenic press and ubiquitous development of ploughlands (Yamalov, Mirkin, 2010), habitats of stony slopes are local refugia for the steppe flora and vegetation.
A. Yu. Teptina   +2 more
openaire   +1 more source

Adjustment of CAD–CAM crowns with and without a 3D‐printed model: Comparative study of marginal fit

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated and compared the marginal fit of CAD–CAM zirconia crown copings with and without a 3D‐printed control model. Materials and Methods This prospective in vitro trial involved 30 zirconia crown copings made from the same STL file. These were divided into two groups.
Marwan Al Akkad   +6 more
wiley   +1 more source

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