854 research outputs found
Method for characterizing single photon detectors in saturation regime by cw laser
No full textWe derive an analytical expression for the count probability of a single photon detector for a wide range of input optical power that includes afterpulsing effects. We confirm the validity of the expression by fitting it to the data obtained from a saturated commercial Single Photon Detector by illuminating it with a cw laser. Detector efficiency and afterpulsing probability extracted from the fits agree with the manufacture specs for low repetition frequencies. © 2010 Optical Society of America
Economic utopia of the Torah. Economic concepts of the Hebrew Bible interpreted according to the Rabbinical Literature
No full textHebrew Bible offers alternative Economic utopia for building Theocratic society. In this paper, various economic concepts and themes are presented, as found in the Hebrew Bible. These economic concepts include taxation, property rights, labor market, social policy, banking, years of Sabbath and Jubilee, and business cycles. Most economic issues of the Bible are found in the texts of Torah, also known as five Books of Moses. These texts are analyzed by using classical Rabbinical commentaries for better insight. Contrary to the modern Economic theory which is based on the assumptions of scarcity of resources and unlimited needs of consumers, Economics of the Torah is based on God’s resources which are enough for all true needs of His people.Hebrew Bible, History of Economics, History of Economic Thought, Ancient Israel, Judaism
Mestizajes, exclusiones y alianzas étnicas en las pampas y el Chaco rioplatenses: (Segunda mitad del siglo XIX). Antropología. Boletín Oficial del Instituto Nacional de Antropología e Historia: Cien años. Anales del Museo Nacional de México (1877-1977). Num. 69 Nueva Época (2003) enero-marzo
No full textÁlvarez, Juan, Historia de Rosario, Buenos Aires, s/e, 1943.Bertoni, Lilia Ana, Patriotas, cosmopolitas y nacionalistas. La construcción de la nacionalidad argentina a fines del siglo XIX, Buenos Aires, Fondo de Cultura Económica, 2001.Gallo, Ezequiel, Colonos en armas. Las revoluciones radicales en la provincia de Santa Fe, Buenos Aires, Instituto Di Teila, 1977.———, La pampa gringa, Buenos Aires, Sudamericana, 1982.Rodríguez Mola, Ricardo, Historia social del gaucho, Buenos Aires, CEAL, 1986.
Sbarra, Noei H., Historia del alambrado en Argentina, Buenos Aires, Eudeba, 1964.Scobie, James, Revolución en las pampas. Historia social del trigo argentino, Buenos Aires, Solar-Hachette, 1967.Schobinger, Juan, Inmigración y colonización suizas en la República Argentina, Buenos Aires, s/e, 1963.Tur, Carlos M. y J. Alberto Tur, “El marco histórico”, en Santa Fe: el paisaje y los hombres, Rosario, Editorial Biblioteca, 1971.———, “La conquista de la pampa por la colonización Gringa”, en Revista Agro Nuestro, Rosario, 1971
Ramsey multiplicity and the Tur\'an coloring
No full textExtending an earlier conjecture of Erd\H{o}s, Burr and Rosta conjectured that
among all two-colorings of the edges of a complete graph, the uniformly random
coloring asymptotically minimizes the number of monochromatic copies of any
fixed graph . This conjecture was disproved independently by Sidorenko and
Thomason. The first author later found quantitatively stronger counterexamples,
using the Tur\'an coloring, in which one of the two colors spans a balanced
complete multipartite graph.
We prove that the Tur\'an coloring is extremal for an infinite family of
graphs, and that it is the unique extremal coloring. This yields the first
determination of the Ramsey multiplicity constant of a graph for which the
Burr--Rosta conjecture fails.
We also prove an analogous three-color result. In this case, our result is
conditional on a certain natural conjecture on the behavior of two-color Ramsey
numbers.Comment: 39 pages, final version to appear in Advances in Combinatoric
Pavlova, Tur, and 'Razdel': What's in a Name?
No full textThis article concerns an authorship problem that raises issues of canonical aesthetics. What does it mean to say a literary work is ‘good’? And does knowing the author’s literary reputation affect our ability to appreciate the work? Nineteenth-century Russian critics divided women authors into ‘extraordinary women’, i.e. honorary men, and perpetrators of ‘women’s writing’—categories that have persisted in Russia. It seems useful to look at what ‘women’s writing’ is, and on what basis ‘Razdel’, regardless of its author, can be evaluate
Tur\'{a}n numbers of general hypergraph star forests
No full textLet be a family of -uniform hypergraphs, and let be an
-uniform hypergraph. Then is called -free if it does not
contain any member of as a subhypergraph. The Tur\'{a}n number of
, denoted by , is the maximum number of
hyperedges in an -free -vertex -uniform hypergraph. Our
current results are motivated by earlier results on Tur\'{a}n numbers of star
forests and hypergraph star forests. In particular, Lidick\'{y}, Liu and Palmer
[Electron. J. Combin. 20 (2013)] determined the Tur\'{a}n number of a
star forest for sufficiently large . Recently, Khormali and Palmer
[European. J. Combin. 102 (2022) 103506] generalized the above result to three
different well-studied hypergraph settings, but restricted to the case that all
stars in the hypergraph star forests are identical. We further generalize these
results to general hypergraph star forests.Comment: arXiv admin note: substantial text overlap with arXiv:2001.05631 by
other author
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