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Tularemia and plague survey in rodents in an earthquake zone in southeastern Iran
Behzad Pourhossein,Saber Esmaeili,Mikló,s Gyuranecz,Ehsan Mostafavi 한국역학회 2015 Epidemiology and Health Vol.37 No.-
OBJECTIVES: Earthquakes are one the most common natural disasters that lead to increased mortality and morbidity from transmissible diseases, partially because the rodents displaced by an earthquake can lead to an increased rate of disease transmission. The aim of this study was to evaluate the prevalence of plague and tularemia in rodents in the earthquake zones in southeastern Iran. METHODS: In April 2013, a research team was dispatched to explore the possible presence of diseases in rodents displaced by a recent earthquake magnitude 7.7 around the cities of Khash and Saravan in Sistan and Baluchestan Province. Rodents were trapped near and in the earthquake zone, in a location where an outbreak of tularemia was reported in 2007. Rodent serums were tested for a serological survey using an enzyme-linked immunosorbent assay. RESULTS: In the 13 areas that were studied, nine rodents were caught over a total of 200 trap-days. Forty-eight fleas and 10 ticks were obtained from the rodents. The ticks were from the Hyalomma genus and the fleas were from the Xenopsylla genus. All the trapped rodents were Tatera indica. Serological results were negative for plague, but the serum agglutination test was positive for tularemia in one of the rodents. Tatera indica has never been previously documented to be involved in the transmission of tularemia. CONCLUSIONS: No evidence of the plague cycle was found in the rodents of the area, but evidence was found of tularemia infection in rodents, as demonstrated by a positive serological test for tularemia in one rodent.
Matrix-valued Jensen's inequality and its application to eigenvalue analysis
Lim, Yongdo,Pá,lfia, Mikló,s Elsevier 2018 Journal of mathematical analysis and applications Vol.464 No.2
<P><B>Abstract</B></P> <P>We first establish Jensen's inequality for lower semicontinuous convex functions from a Hadamard space into an “ordered” Hadamard space. We apply Jensen's inequality to matrix valued integrable functions on probability measure spaces and provide new results on matrix analysis and eigenvalue analysis by discovering a variety of Lipschitz convex functions related to eigenvalue maps and Löwner ordering of positive definite matrices.</P>
Weighted deterministic walks for the least squares mean on Hadamard spaces
Lim, Yongdo,Pá,lfia, Mikló,s Oxford University Press 2014 The bulletin of the London Mathematical Society Vol.46 No.3
<P>We show that the Karcher mean of [Formula] points in any Hadamard space can be approximated by a natural explicitly constructed sequence. In the special case when the Hadamard space is the Riemannian manifold of positive definite matrices, this has been recently proved by J. Holbrook. A general version, in which the [Formula] points are assigned different weights, is established.</P>
Approximations to the Karcher mean on Hadamard spaces via geometric power means
Lim, Yongdo,Pá,lfia, Mikló,s Walter de Gruyter GmbH 2015 Forum mathematicum Vol.27 No.5
<B>Abstract</B><P>In this paper we establish a limit theorem for contractive means on a Hadamard space. For a contractive mean satisfying an extended metric inequality, the corresponding geometric power means varying over</P>