نتایج جستجو برای: sage
تعداد نتایج: 5795 فیلتر نتایج به سال:
Baltasar-George Sage (1740-1824), a conflictive chemist and mining engineer, and one of the last supporters of the phlogiston theory and the old chemical nomenclature, carried on a large number of metallurgical researches, discovered hypophosphoric acid and solid potassium ferrocyanide. His most achievement was the foundation of the School of Mines of Paris. LIFE AND CAREER In his biography Bal...
We present a Sage implementation of Ore algebras. The main features for the most common instances include basic arithmetic and actions; gcrd and lclm; D-finite closure properties; natural transformations between related algebras; guessing; desingularization; solvers for polynomials, rational functions and (generalized) power series. This paper is a tutorial on how to use the package.
Supervisory Team Dr Michael A. Carroll, School of Chemistry, http://www.ncl.ac.uk/chemistry/staff/profile/michael.carroll Dr Mohammed Shoaib, Institute of Neuroscience, http://www.ncl.ac.uk/ion/staff/profile/mohammedshoaib.html#research Dr Ed Robins, Singapore Bioimaging Consortium, A*STAR https://www.a-star.edu.sg/sbic/ABOUT-SBIC/PrincipalInvestigators/Ed-Robins.aspx The Lead Supervi...
Serial analysis of gene expression (SAGE) experiments could provide us the expression level of thousands of genes in a biological sample. However, the number of available samples is relatively small. Such undersampled problem needs to be carefully analyzed from a machine learning perspective. In this paper, we combine several state-of-theart techniques for classification, feature selection, and...
Software systems typically contain large APIs that are informally specified and hence easily misused. This paper presents the Sage programming language, which is designed to enforce precise interface specifications in a flexible manner. The Sage type system uses a synthesis of the type Dynamic, first-class types, and arbitrary refinement types. Since type checking for this expressive language i...
Soil moisture is a key limiting resource in arid and semi-arid environments for woody shrub species. We assessed if three arid communities differed in their level of dry season soil moisture content and if the dominant species in these communities differed in their ability to use soil moisture. Water potential of all of the dominant woody plant species occurring in chaparral, coastal sage, and ...
Rainfall simulation experiments were conducted on annual grassland and coastal sage scrub hillslopes to determine the quantities of C and N removed by surface runoff in sediment and solution. Undisturbed coastal sage scrub soils have very high infiltration capacities (> 140 mm h(-1)), preventing the generation of surface runoff. Trampling disturbance to the sage scrub plots dramatically reduced...
Plant cover and vegetation structure were examined at two inland coastal sage scrub sites differing in fire history and use by California gnatcatchers. Salvia mellifera and Eriogonum fasciculatum dominated one site; shrub cover on gnatcatcher– occupied plots averaged 50 percent greater than on unoccupied plots. At the other site, gnatcatcher-occupied plots had high cover of Artemisia californic...
Analysis of several million expressed gene signatures (tags) revealed an increasing number of different sequences, largely exceeding that of annotated genes in mammalian genomes. Serial Analysis of Gene Expression (SAGE) can reveal new RNAs transcribed from previously unrecognized genomic regions. However, conventional SAGE tags are too short to identify unambiguously unique sites in large geno...
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