A new species of the Dahlibruchus genus is described and information is given about its bionomics and host plants, also are mentioned general aspects about the archeological site where the insect was found.

The avocado seed moth, Stenoma catenifer Walsingham, is recorded for the first time in the State of Queretaro, Mexico. Aspects about its habits and behavior are described.

We explore the urban structure of eight metropolitan areas that surround Mexico City, forming its regional belt, by identifying spatial clusters within metropolitan areas with a regionally standardized local-spatial-autocorrelation procedure. The analysis reveals clear concentric urban ring patterns around the…

An isolated supraorbital horncore collected from the Olmos Formation near Múzquiz is among the longest ever found, and records the presence in this area of a very large ceratopsid. The specimen probably pertains to a chasmosaurine, but differs significantly from…

This paper presents the development of an experimental bench for performing time-domain tests on synchronous machines at standstill. The test bench allows the collection of experimental data which can then be used in the parameter estimation of mathematical models of…

In this paper we propose the combination of accelerated variants of value iteration mixed with improved prioritized sweeping for the fast solution of stochastic shortest-path Markov decision processes. Value iteration is a classical algorithm for solving Markov decision processes, but…

An algorithm for constructing fractal trees is presented. Fractal trees are represented by means of the notation called the unique tree descriptor [E. Bribiesca, A method for representing 3D tree objects using chain coding, J. Vis. Commun. Image R. 19…

The evolution and development of mankind has been partly possible thanks to the transformation of diverse types of materials and the manipulation of their mechanical properties. This work is focused on numerical and experimental evaluations of the improvement of the…

We present a network coding security method capable of detecting several routing attacks in wireless reconfigurable networks. Routing security attacks include selective forwarding, black holes, and wormholes. The proposed method performs linear network coding over intermediate nodes composing a given…

The Hurst parameter captures the amount of long-range dependence (LRD) in a time series. There are several methods to estimate the Hurst parameter, being the most popular: the variance-time plot, the R/S plot, the periodogram, and Whittle's estimator. The first…