106 research outputs found
Three Years of Fermi LAT Flare Advocate Activity
The Fermi Flare Advocate (also known as Gamma-ray Sky Watcher, FA-GSW)
service provides for a daily quicklook analysis and review of the high-energy
gamma-ray sky seen by the Fermi Gamma-ray Space Telescope. The duty offers
alerts for potentially new gamma-ray sources, interesting transients and
relevant flares. A public weekly digest containing the main highlights about
the GeV gamma-ray sky is published in the web-based Fermi Sky Blog. During the
first 3 years of all-sky survey, more than 150 Astronomical Telegrams, several
alerts to the TeV Cherenkov telescopes, and targets of opportunity to Swift and
other observatories have been realized. This increased the rate of simultaneous
multi-frequency observing campaigns and the level of international cooperation.
Many gamma-ray flares from blazars (like extraordinary outbursts of 3C 454.3,
intense flares of PKS 1510-089, 4C 21.35, PKS 1830-211, AO 0235+164, PKS
1502+106, 3C 279, 3C 273, PKS 1622-253), short/long flux duty cycles,
unidentified transients near the Galactic plane (like J0910-5041, J0109+6134,
the Galactic center region), flares associated to Galactic sources (like the
Crab nebula, the nova V407 Cyg, the microquasar Cyg X-3), emission of the quiet
and active sun, were observed by Fermi and communicated by FA-GSWs.Comment: 2011 Fermi Symposium proceedings - eConf C11050
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Integrating Data Clustering and Visualization for the Analysis of 3D Gene Expression Data
The recent development of methods for extracting precise measurements of spatial gene expression patterns from three-dimensional (3D) image data opens the way for new analyses of the complex gene regulatory networks controlling animal development. We present an integrated visualization and analysis framework that supports user-guided data clustering to aid exploration of these new complex datasets. The interplay of data visualization and clustering-based data classification leads to improved visualization and enables a more detailed analysis than previously possible. We discuss (i) integration of data clustering and visualization into one framework; (ii) application of data clustering to 3D gene expression data; (iii) evaluation of the number of clusters k in the context of 3D gene expression clustering; and (iv) improvement of overall analysis quality via dedicated post-processing of clustering results based on visualization. We discuss the use of this framework to objectively define spatial pattern boundaries and temporal profiles of genes and to analyze how mRNA patterns are controlled by their regulatory transcription factors
Texas poll 1963
Rights of blacks and racial integration / social distance scores / attitude towards teenage motorists / attitude towards peace and disarmament / attitude towards political leaders. Background variables: basic characteristics/ education/ politics/ consumption of durables/ organizational membershi
Kosten van levensonderhoud van industriearbeiders in de Verenigde Staten en Europa, 1888-1890, 1986 ICPSR 7711
Determining cost of living and cost of production in selected industries in the US and several European countries. Sources of income / family composition / detailed occupation of the household head / detailed expenditures for food and non-food items / characteristics of dwelling / interviewer description of living condition. Background variables: basic characteristics/ residence/ housing situation/ household characteristics/ occupation/employment/ income/capital asset
Polity II, political structures and regime change, 1800-1986 ICPSR 9263
Analysis of regimes' structural characteristics, institutional changes, and the directionality of changes on underlying dimensions of democracy, autocracy, and power concentrations Nine groups of variables are included in the Polity II data set: spatial-temporal domain / basic authority characteristics of politics / identification of major, abrupt polity change / events immediately preceding-causing polity termination / events signifying polity formation / indicators of democracy, autocracy and state power / institutional adaptability and persistence / central government expenditures, revenues and national accounts / Banks' polity characteristics
Kopen van oorlogsobligaties in de Verenigde Staten, 1943
Social psychology of a war bond drive/ a study in mass persuasion on the occasion of the Kate Smith marathon, September 21th 1943. General views on and effects of a long radio broadcast by Kate Smith to stimulate the buying of war bonds / patriotism / opinions on and knowledge about the radio-program of Kate Smith / previous campaigns / listening to radio broadcasting / attitude towards inequality in income / attitude towards buying bonds. Background variables: basic characteristics/ household characteristics/ occupation/employment/ income/capital assets/ education/ social class/ consumption of durable
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