Sequencing and identification of expressed Schistosoma mansoni genes by random selection of cDNA clones from a directional library

We have initiated a gene discovery program in Schistosoma mansoni based on the technique of Expressed Sequence Tags (ESTs), i.e. partial sequences of cDNAs obtained from single passes in automatic DNA sequencers. ESTs can be used to identify genese onf the basis of their homology whith sequences from other species deposited in DNA or protein databases. Trasncripts with sequences without matches in teh databases may represent novel parasite-specific genes. This approach has shown to be very efficient and in less than two years a broad range of novel genes has already been ascertained, more than doubling the number of known S. mansoni genes.

De Andrew Carnegie a OverDrive, Amazon y ¿algo más? Biblioteca pública y préstamo de libros digitales en Estados Unidos

Ressenya de: 2012 survey of ebook usage in U.S. public libraries: third annual survey. LJ/SLJ Library Research Syndicate (LRS). [New York, N.Y.]: Library Journal, 2012. 108 p. Disponible en línia a: [Consulta: 27 feb. 2013].

RelMDD-A Library for Manipulating Relations Based on MDDs

Relation algebras is one of the state-of-the-art means used by mathematicians and computer scientists for solving very complex problems. As a result, a computer algebra system for relation algebras called RelView has been developed at Kiel University. RelView works within the standard model of relation algebras. On the other hand, relation algebras do have other models which may have different properties. For example, in the standard model we always have L;L=L (the composition of two (heterogeneous) universal relations yields a universal relation). This is not true in some non-standard models. Therefore, any example in RelView will always satisfy this property even though it is not true in general. On the other hand, it has been shown that every relation algebra with relational sums and subobjects can be seen as matrix algebra similar to the correspondence of binary relations between sets and Boolean matrices. The aim of my research is to develop a new system that works with both standard and non-standard models for arbitrary relations using multiple-valued decision diagrams (MDDs). This system will implement relations as matrix algebras. The proposed structure is a library written in C which can be imported by other languages such as Java or Haskell.

Paths of Discovery: Comparing the Search effectiveness of EBSCO Discovery Service, Summon, Google Scholar, and Conventional Library Resources

In 2011, researchers at Bucknell University and Illinois Wesleyan University compared the search efficacy of Serial Solutions Summon, EBSCO Discovery Service, Google Scholar and conventional library databases. Using a mixed-methods approach, qualitative and quantitative data was gathered on students’ usage of these tools. Regardless of the search system, students exhibited a marked inability to effectively evaluate sources and a heavy reliance on default search settings. On the quantitative benchmarks measured by this study, the EBSCO Discovery Service tool outperformed the other search systems in almost every category. This article describes these results and makes recommendations for libraries considering these tools.

Will of the Rev. Andrew Croswell, 1785 November

This folder contains three handwritten copies of the November 8, 1785, will of Andrew Croswell and a copy of the inventory of Croswell's estate.

Copy of Andrew Croswell's executor's account, 1788 June 2

One-leaf account of the disbursements of the estate of Andrew Croswell presented to the judge of probate for Suffolk County, Massachusetts.

Letter from William Croswell to Andrew Croswell, 1828 June 20

Draft of a letter to Croswell's nephew regarding the family's history.

Letters from Daniel White to Andrew Hall, March 23, 1799

These two letters, both written on the same document, appear to be White's response to accusations from the father of one of his students at the Medford grammar school. Andrew Hall appears to have accused White of punishing his son too severely. In the letters, White denies Hall's accusations while defending his apparently strict approach to discipline. It is not certain whether both these letters were intended for Hall, or if one was written to another (unnamed) upset parent.

[College Declamation of Andrew Fuller, 1761]

One-page handwritten Latin composition by Andrew Fuller with an epitaph of two lines from Perseus beginning, "Respice quod non es..." The document is a draft with edits and struck-through words.

[Admittatur of Andrew O. Waterhouse], 1806 September 24

Published copy of the 1807 College Laws with the admittatur of undergraduate Andrew O. Waterhouse signed by President Samuel Webber on September 24, 1806.

Geochronology, stratigraphy, and typology / John Andrew Wilson --.

v.33:no.11(1975)