Search results for "FOUNDATION"
showing 10 items of 256 documents
Weight reduction behaviors among European adolescents—Changes from 2001/2002 to 2017/2018.
2020
Ercan, Oya/0000-0001-7397-2837; Finne, Emily/0000-0002-6736-0022; Tesler, Riki/0000-0001-6070-6193; Ojala, Kristiina/0000-0001-9081-1891; Furstova, Jana/0000-0003-4057-2540; Dzielska, Anna/0000-0001-7396-8504 WOS:000538880700011 PubMed ID: 32446612 Purpose: The purpose of this study was to analyze changes in the prevalence of weight reduction behaviors (WRBs) among European adolescents from 26 countries between 2001/2002 and 2017/ 2018. The impact of the perception of body weight on WLB was also analyzed, with particular attention being paid to overestimation. Methods: The data of 639,194 European adolescents aged 11, 13, and 15 years who participated in the Health Behaviour in School-aged …
Us and them: From prejudice to racism. An original analysis of race and racism.
2020
International audience; This paper present the content of the Musée de l'Homme exhibition "Us and them: from prejudice to racism" and provides a detailed explanation of how this content has been presented to the public. In a second section of this paper we explain some of the analysis and concepts, from a biological anthropology perspective, that were the foundation of the exhibition and provides some information about the current situation in France.
Hermann weyl, the reluctant revolutionary
2003
“Brouwer – that is the revolution!” – with these words from his manifesto “On the New Foundations Crisis in Mathematics” (Weyl 1921) Hermann Weyl jumped headlong into ongoing debates concerning the foundations of set theory and analysis. His decision to do so was not taken lightly, knowing that this dramatic gesture was bound to have immense repercussions not only for him, but for many others within the fragile and politically fragmented European mathematical community. Weyl felt sure that modern mathematics was going to undergo massive changes in the near future. By proclaiming a “new” foundations crisis, he implicitly acknowledged that revolutions had transformed mathematics in the past, …
Buckling of a coating strip of finite width bonded to elastic half-space
2008
AbstractA solution for buckling of a stiff strip of finite width bonded to a compliant elastic half-space and subjected to uniform axial compression is presented. Approximate semi-analytical and finite element solutions are obtained and compared with a two-dimensional case of a plate on elastic foundation. The comparison demonstrates that the two-dimensional solution can be applied to predict the buckling wavelength and critical compressive strain when the width of the strip is equal to or larger than the buckling wavelength. For narrow strips, the wavelength is smaller and critical strain is higher than that of a plate on foundation.
Mechanical Behaviour of a Green Sandwich Made of Flax Reinforced Polymer Facings and Cork Core
2015
Abstract This work investigates the flexural behavior of a composite sandwich made of flax fibers reinforced skin facings and an agglomerated cork core, to be employed as an eco-friendly solution for the making of structural components of small sailing boats. An experimental mechanical characterization of the strength and stiffness flexural behavior of the proposed sandwich is carried out, providing a comparison of performances from three implemented assembling techniques: hand-lay-up, vacuum bagging and resin infusion. Sandwich beams have been tested under three point bending (TPB) at various span lengths. A procedure is also proposed and implemented to consider the potential influence of …
Simple equations for strength and deformability verification of tubular steel wind turbine towers
2021
Abstract Simple analytical expressions for a preliminary design of tubular steel wind turbine towers under flexure and shear are proposed. Expressions derived included local buckling effects, shear to moment interaction, ovalization of cross-section and inelastic rotation of foundation. A finite-element analysis with ABAQUS program was also conducted for examination of the ovalization effects and for the whole response of steel tube in flexure. Numerical and analytical results were compared with the experimental results of recent studies available in the literature, showing good agreement. The range of variable investigated refers to medium and large size steel wind tower with cylindrical s…
Limitations of Quantum Walks and Randomized Algorithms
2019
Šajā darbā tiek pētīta algoritmu sarežģītība dažādos skaitļošanas modeļos. Konkrētāk, tiek pētītas kvantu klejošanas algoritmu īpašības un ierobežojumi, kā arī varbūtisko vaicājumalgoritmu darbības laika novērtēšanas metodes. Pirmajā daļā tiek aplūkotas Grovera kvantu klejošana un meklēšana grafos. Darbā tiek sniegts vispārīgs matemātisks apraksts klejošanas lokalizācijai un meklēšanas stacionārajiem stāvokļiem. Otrajā daļā tiek aplūkotas apakšējo novērtējumu metodes varbūtisko vaicājumalgoritmu modelī. Darbā tiek pierādīta klasisko pretinieka metožu asimptotiskā ekvivalence visur definētām funkcijām, un aprakstītas to atšķirības daļēji definētām funkcijām. Tiek arī aplūkota saistība starp …
Probabilistic computation and verification beyond Turing machines
2019
Mūsu mērķis ir izpētīt dažādus ierobežotas kļūdas varbūtiskus modeļus, kas spēj definēt nesanumurējami daudz valodu. Mēs sākam ar stingrāko nosacījumu - sākumā apskatām minimālus modeļus, kas var atpazīt visas valodas. Mēs apskatām varbūtiskas Tjūringa mašīnas, varbūtiskus automātus ar skaitītājiem un varbūtiskus galīgus automātus ar dažādiem ierobežojumiem uz ievadgalviņu. Mēs apskatām arī konstantas telpas pārbaudītājus (verifiers), kas mijiedarbojas ar vienu un diviem pierādītājiem (provers) un pārbauda (verify) visas valodas. Pēc tam mēs pieminētajos modeļos apskatām nesanumurējami daudzu valodu atpazīšanu un pārbaudi ar ierobežotu kļūdu. Mēs pierādām arī jaunus rezultātus par kvantu au…
The Power and the Limits of Quantum Automata and Search Algorithms
2013
Kvantu skaitļošana ir nozare, kas pēta uz kvantu mehānikas likumiem balstīto skaitļošanas modeļu īpašības. Disertācija ir veltīta kvantu skaitļošanas algoritmiskiem aspektiem. Piedāvāti rezultāti trijos virzienos: Kvantu galīgi automāti Analizēta stāvokļu efektivitāte kvantu vienvirziena galīgam automātam. Uzlabota labāka zināmā eksponenciālā atšķirība [AF98] starp kvantu un klasiskajiem galīgajiem automātiem. Grovera algoritma analīze Pētīta Grovera algoritma noturība pret kļūdām. Vispārināts [RS08] loģisko kļūdu modelis un piedāvāti vairāki jauni rezultāti. Kvantu klejošana Pētīta meklēšana 2D režģī izmantojot kvantu klejošanu. Paātrināts [AKR05] kvantu klejošanas meklēšanas algoritms. At…
Leon Henkin the Reviewer
2014
In this chapter, we intend to look at Henkin’s reviews, a total of forty-six. The books and papers reviewed deal with a large variety of subjects that range from the algebraic treatment of logical systems to issues concerning the philosophy of mathematics and, not surprisingly—given his active work in mathematical education—one on the teaching of this subject. Most of them were published in The Journal of Symbolic Logic and only one in the Bulletin of the American Mathematical Society. We will start by sorting these works into subjects and continue by providing a brief summary of each of them in order to point out those aspects that are originally from Henkin, and what we take to be mistake…