Results 31 to 40 of about 30,059 (207)

Buffon type Problems with multiple intersections for regular lattices

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2010
In this paper we study Buffon type problems with multiple intersections for lattices of equilateral triangles and a circle as test body.
Vittoria Bonanzinga, Loredana Sorrenti
doaj   +1 more source

Metafísicas da natureza na época das luzes (Diderot, D’Alembert, Buffon)

open access: yesLiteratura e Sociedade, 2018
Trata-se de examinar a concepção de Natureza em Diderot de modo a mostrar a redefinição desse conceito em algumas passagens de sua obra, culminando com o Sonho de d'Alembert. Para tanto, são mobilizados, além de textos do próprio Diderot, também escritos
Pedro Paulo Pimenta
doaj   +1 more source

Combinatory Library of Microorganisms in the Selection of Reductive Activity Applied to a Ketone Mixture: Unexpected Highlighting of an Enantioselective Oxidative Activity

open access: yesMicroorganisms, 2023
Biocatalytic processes are increasingly used in organic synthesis for the preparation of targeted molecules or the generation of molecular diversity. The search for the biocatalyst is often the bottleneck in the development of the process. We described a
Sofiane Ali Rachedi   +3 more
doaj   +1 more source

Against “revolution” and “evolution” [PDF]

open access: yes, 2005
Those standard historiographic themes of “evolution” and “revolution” need replacing. They perpetuate mid-Victorian scientists’ history of science. Historians’ history of science does well to take in the long run from the Greek and Hebrew heritages on ...
Hodge, M.J.S.
core  

History without time : Buffon's Natural History, as a non-mathematical physique

open access: yes, 2010
International audienceWhile "natural history" is practically synonymous with the name of Buffon, the term itself has been otherwise overlooked by historians of science.
Hoquet, Thierry
core   +3 more sources

Marx's Concept of Life

open access: yesEuropean Journal of Philosophy, EarlyView.
Abstract This essay aims to reveal the conceptual unity of an ensemble of concepts of organic, animal, and anthropological life articulated by the young Karl Marx between 1842 and 1844. To lay the groundwork for my analysis, I begin with Marx's general account of “life as activity.” I argue that Marx articulates a hylomorphic theory of organic form in ...
Christopher Shambaugh
wiley   +1 more source

Late Devonian–early Carboniferous ostracods (Crustacea) from South China: taxonomy, diversity and implications

open access: yesEuropean Journal of Taxonomy, 2022
The impact of the late Devonian Hangenberg Event on ostracods is quantified for the first time from newly acquired data from the Blue Snake section, Guizhou Province, South China.
Elvis Guillam   +3 more
doaj   +1 more source

Alkoxide complexes of rhenium, niobium and tantalum [PDF]

open access: yes, 2009
This thesis describes two major methods for preparation of new mono-, bi- and trimetallic complexes on the basis of Rhenium, Niobium and Tantalum: (1) - the electrochemical method for the synthesis of Re4O4(OEt)12 and (2) - the interaction of Rhenium ...
Nikonova, Olesya A.
core  

Classical and quantum N=1 super $W_\infty$-algebras

open access: yes, 1996
We construct higher-spin N=1 super algebras as extensions of the super Virasoro algebra containing generators for all spins $s\ge 3/2$. We find two distinct classical (Poisson) algebras on the phase super space. Our results indicate that only one of them
Buffon, L. O., Dalmazi, D., Zadra, A.
core   +2 more sources

A New Method for Skin Color Classification Based on Global CIELAB Data and k ‐Mean Clustering

open access: yesColor Research &Application, Volume 51, Issue 1, January/February 2026.
The six skin color clusters. ABSTRACT Human skin color varies significantly across the globe, presenting a challenge for accurate and objective classification. Existing systems, like the Fitzpatrick Skin Type (FST) and individual typology angle (ITA), are primarily designed to assess photosensitivity and fail to capture the full spectrum of skin color ...
Théo Phan Van Song   +3 more
wiley   +1 more source

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