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The ongoing revolution in high-throughput sequencing continues to democratize the ability of small groups of investigators to map the microbial component of the biosphere. In particular, the coevolution of new sequencing...

Multilayer neural networks trained with the back-propagation algorithm constitute the best example of a successful gradient based learning technique. Given an appropriate network architecture, gradient-based learning alg...

We have developed three computer programs for comparisons of protein and DNA sequences. They can be used to search sequence data bases, evaluate similarity scores, and identify periodic structures based on local sequence...

A mathematical model for the evolutionary change of restriction sites in mitochondrial DNA is developed. Formulas based on this model are presented for estimating the number of nucleotide substitutions between two popula...

Many networks of interest in the sciences, including social networks, computer networks, and metabolic and regulatory networks, are found to divide naturally into communities or modules. The problem of detecting and char...

Computational properties of use of biological organisms or to the construction of computers can emerge as collective properties of systems having a large number of simple equivalent components (or neurons). The physical ...

We have developed a simple and highly efficient method to disrupt chromosomal genes in Escherichia coli in which PCR primers provide the homology to the targeted gene(s). In this procedure, recombination requires the pha...

Starts with a brief review of the history and the application areas considered in the literature. The author then proceeds with introductory modeling examples, behavioral and structural properties, three methods of analy...

Breast cancer is the most common malignancy in United States women, accounting for >40,000 deaths each year. These breast tumors are comprised of phenotypically diverse populations of breast cancer cells. Using a model i...

Abstract A quantal system in an eigenstate, slowly transported round a circuit C by varying parameters R in its Hamiltonian Ĥ(R), will acquire a geometrical phase factor exp{iγ(C)} in addition to the familiar dynamical...

Microarrays can measure the expression of thousands of genes to identify changes in expression between different biological states. Methods are needed to determine the significance of these changes while accounting for t...

With the increase in genomewide experiments and the sequencing of multiple genomes, the analysis of large data sets has become commonplace in biology. It is often the case that thousands of features in a genomewide data ...

With the exception of the Teffe strain which will be dis- cussed in another publication, no trace of sexual isolation is observed between strains of D. willistoni from different parts of Brazil and from Guatemala.When Br...

The connection between the elastic behaviour of an aggregate and a single crystal is considered, with special reference to the theories of Voigt, Reuss, and Huber and Schmid. The elastic limit under various stress system...

Abstract It is supposed that a region within an isotropic elastic solid undergoes a spontaneous change of form which, if the surrounding material were absent, would be some prescribed homogeneous deformation. Because of ...

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During performance of attention-demanding cognitive tasks, certain regions of the brain routinely increase activity, whereas others routinely decrease activity. In this study, we investigate the extent to which this task...

We report free-standing atomic crystals that are strictly 2D and can be viewed as individual atomic planes pulled out of bulk crystals or as unrolled single-wall nanotubes. By using micromechanical cleavage, we have prep...

The Library Linkage Project (PrEBi) has as main objective to share the bibliographic acervus resident in ISTEC Institutions, in order to satisfy the demand of Researchers, Teachers and Students. To manage the bibliograph...

This is an undergraduate thesis to obtain the degree of Licentiate in Computer Science in University of La Plata, Argentina. Since by standing rules of the institution this work must be presented in Spanish, the author w...

La Consejera Jurídica Regional del Alto Comisionado de las Naciones unidas para los Refugiados brindó un concreto panorama acerca de la Problemática del Refugiado. Explicó la determinación de la condición de Refugi...

El crecimiento de los sectores populares urbanos hacia fines del siglo XVIII y comienzos del XIX, quizás haya sido uno de los fenómenos demográficos más significativos y que ha producido más rupturas en la organizac...

Este artículo presenta la evolución de la Zona de Integración Fronteriza (ZIF) de Táchira-Norte de Santander (ZIF-TNS) en la frontera colombo-venezolana. El objetivo principal es mostrar los cambios habidos en la rel...

Hyla melanargyrea fue descrita por Cope (1887. Synopsis of the batrachia and reptilia obtained by H. H. Smith in the province of Matto Grosso, Brazil. Proceedings of the American Philosophical Society, 24: 44-60) en base...