1,168 research outputs found
IVOA Recommendation: SAMP - Simple Application Messaging Protocol Version 1.3
SAMP is a messaging protocol that enables astronomy software tools to
interoperate and communicate.
IVOA members have recognised that building a monolithic tool that attempts to
fulfil all the requirements of all users is impractical, and it is a better use
of our limited resources to enable individual tools to work together better.
One element of this is defining common file formats for the exchange of data
between different applications. Another important component is a messaging
system that enables the applications to share data and take advantage of each
other's functionality. SAMP builds on the success of a prior messaging
protocol, PLASTIC, which has been in use since 2006 in over a dozen astronomy
applications and has proven popular with users and developers. It is also
intended to form a framework for more general messaging requirements
Searching the Higgs with the Neurochip TOTEM
We show that neural network classifiers can be helpful in discriminating
Higgs production events from the huge background at LHC, assuming the case of a
mass value GeV. We use the high performance neurochip TOTEM,
trained by the Reactive Tabu Search algorithm (RTS), which could be used for
on-line purposes. Two different sets of input variables are compared.Comment: 4 pages,1 figure, requres espcrc2.sty and epsfig.sty. Work prsented
in The 5th Topical Seminar on ``The irresistible rise of the Standard
Model'', San Miniato, Tuscany, Italy, April 21-25 199
Polariton-mediated Raman scattering in microcavities: A Green's function approach
We present calculations of the intensity of polariton-mediated inelastic
light scattering in semiconductor microcavities within a Green's function
framework. In addition to reproducing the strong coupling of light and matter,
this method also enables the inclusion of damping mechanisms in a consistent
way. Our results show excellent agreement with recent Raman scattering
experiments.Comment: 6 pages, 1 figur
Hierarchical progressive surveys. Multi-resolution HEALPix data structures for astronomical images, catalogues, and 3-dimensional data cubes
Scientific exploitation of the ever increasing volumes of astronomical data
requires efficient and practical methods for data access, visualisation, and
analysis. Hierarchical sky tessellation techniques enable a multi-resolution
approach to organising data on angular scales from the full sky down to the
individual image pixels. Aims. We aim to show that the Hierarchical progressive
survey (HiPS) scheme for describing astronomical images, source catalogues, and
three-dimensional data cubes is a practical solution to managing large volumes
of heterogeneous data and that it enables a new level of scientific
interoperability across large collections of data of these different data
types. Methods. HiPS uses the HEALPix tessellation of the sphere to define a
hierarchical tile and pixel structure to describe and organise astronomical
data. HiPS is designed to conserve the scientific properties of the data
alongside both visualisation considerations and emphasis on the ease of
implementation. We describe the development of HiPS to manage a large number of
diverse image surveys, as well as the extension of hierarchical image systems
to cube and catalogue data. We demonstrate the interoperability of HiPS and
Multi-Order Coverage (MOC) maps and highlight the HiPS mechanism to provide
links to the original data. Results. Hierarchical progressive surveys have been
generated by various data centres and groups for ~200 data collections
including many wide area sky surveys, and archives of pointed observations.
These can be accessed and visualised in Aladin, Aladin Lite, and other
applications. HiPS provides a basis for further innovations in the use of
hierarchical data structures to facilitate the description and statistical
analysis of large astronomical data sets.Comment: 21 pages, 6 figures. Accepted for publication in Astronomy &
Astrophysic
Normative Percent Differences between Inter-day and Inter-Limb Upper Extremity Volume in Healthy Adult Females
Lymphedema is a frequent complication of breast cancer treatments and can become a chronic condition. Diagnosing lymphedema early is essential to reverse the condition and prevent future complications. Segmental circumferential measurements are the most efficient, reliable, and clinically relevant method to measure UE volume. Diagnosing pre-clinical lymphedema requires an understanding of normal inter-day and inter-limb volume differences among healthy women.https://ecommons.udayton.edu/dpt_symposium/1016/thumbnail.jp
Estudio comparativo de diversos colorantes azoicos como posibles reactivos espectrofotométricos del magnesio
Esta publicación es un resumen de una parte de la Tesis Doctoral
leída el día 19 de Diciembre de 1977.Se estudia el comportamiento del Mg(II) frente a ocho colorantes azoicos de análoga constitución química con objeto de seleccionar los que ofrezcan mayores posibilidades para la determinación espectrofotométrica del magnesio. De todos ellos Azorrubina o Acid Red 14, resulta ser el de mayor posibilidades.The behaviour of Mg(II) against eight azo dyes of similar chemical
formulation are studied in order to select the reagents that offer sorne
possib:i1ities for the spectrophotometric determination of magnesium.
Among all they, Azorrubine (Acid Red 14) is the oue that offers the best
results
Español
Se estudia el comportamiento del Mg(II) frente a ocho colorantes azoicos de análoga constitución química con objeto de seleccionar los que ofrezcan mayores posibilidades para la determinación espectrofotométrica del magnesio. De todos ellos Azorrubina o Acid Red 14, resulta ser el de mayor posibilidades.The behaviour of Mg(II) against eight azo dyes of similar chemical formulation are studied in order to select the reagents that offer some possibilities for the spectrophotometric determination of magnesium. Among all they, Azorrubine (Acid Red 14) is the oue that offers the best results
AnnoTALE : bioinformatics tools for identification, annotation, and nomenclature of TALEs from Xanthomonas genomic sequences
Transcription activator-like effectors (TALEs) are virulence factors, produced by the bacterial plant-pathogen Xanthomonas, that function as gene activators inside plant cells. Although the contribution of individual TALEs to infectivity has been shown, the specific roles of most TALEs, and the overall TALE diversity in Xanthomonas spp. is not known. TALEs possess a highly repetitive DNA-binding domain, which is notoriously difficult to sequence. Here, we describe an improved method for characterizing TALE genes by the use of PacBio sequencing. We present 'AnnoTALE', a suite of applications for the analysis and annotation of TALE genes from Xanthomonas genomes, and for grouping similar TALEs into classes. Based on these classes, we propose a unified nomenclature for Xanthomonas TALEs that reveals similarities pointing to related functionalities. This new classification enables us to compare related TALEs and to identify base substitutions responsible for the evolution of TALE specificities
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