Browsing by Title
Now showing items 7742-7761 of 24473
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The evolution of isotope ratios in the Milky Way Galaxy
(2011-07)Isotope ratios have opened a new window into the study of the details of stellar evolution, supernovae and galactic chemical evolution. We present the evolution of the isotope ratios of elemental abundances (from C to Zn) ... -
Evolution of language structure : survival of the fittest in a statistical environment
(University of Hertfordshire, 1998)The structure and other characteristics of natural language can be illuminated by an investigation into the real world conditions within which language functions. Language is taken as a medium in which messages are produced, ... -
The evolution of morality and the end of economic man
(2014-01-01)1871 saw the publication of two major treatises in economics, with self-seeking economic man at their center. In the same year Darwin published The Descent of Man, which emphasized sympathy and cooperation as well as ... -
Evolution of N/O ratios in galaxies from cosmological hydrodynamical simulations
(2018-07-21)We study the redshift evolution of the gas-phase O/H and N/O abundances, both (i) for individual interstellar medium (ISM) regions within single spatially resolved galaxies and (ii) when dealing with average abundances in ... -
The evolution of radio sources in the UKIDSS-DXS-XMM-LSS field
(2011-05)We investigate the cosmic evolution of low-luminosity (L-1.4 GHz < 1025 W Hz-1 sr-1) radio sources in the XMM Large Scale Structure Survey (XMM-LSS) field. We match low-frequency-selected (610-MHz) radio sources in the ... -
Evolution of sibling fungal plant pathogens in relation to host specialization
(2004-07)Sibling plant pathogens can be grouped according to their host ranges into the following groups: group 1, sibling pathogens with nonoverlapping host ranges; group 2, sibling pathogens with both overlapping and nonoverlapping ... -
Evolution of Spiking Neural Networks for Temporal Pattern Recognition and Animat Control
(2016-05-17)I extended an artificial life platform called GReaNs (the name stands for Gene Regulatory evolving artificial Networks) to explore the evolutionary abilities of biologically inspired Spiking Neural Network (SNN) model. The ... -
Evolution of star formation in the UKIDSS Ultra Deep Survey Field - II : Star formation as a function of stellar mass between z=1.46 and z=0.63
(2015-12-01)We present new results on the evolution of the cosmic star formation rate as a function of stellar mass in the SXDS-UDS field. We make use of narrow-band selected emission line galaxies in four redshift slices between z = ... -
Evolution of star formation in the UKIDSS ultra deep survey field-I. Luminosity functions and cosmic star formation rate out to z = 1.6
(2013-07-21)We present new results on the cosmic star formation history in the Subaru/XMM-Newton Deep Survey (SXDS)-Ultra Deep Survey (UDS) field out to z = 1.6. We compile narrowband data from the Subaru Telescope and the Visible and ... -
The Evolution of the Centimeter-Submillimeter Spectrum of 3C 345 during Outburst
(1996-07-01)Monitoring data between 375 and 4.8 GHz are presented for the blazar 3C 345 between 1989 and 1995, during which period the source flared. The multifrequency light curves are used to construct snap-shot spectra that span ... -
The evolution of the fundamental plane of radio galaxies from z∼ 0.5 to the present day
(2011)We present deep spectroscopic data for a 24-object subsample of our full 41-object z∼ 0.5 radio galaxy sample in order to investigate the evolution of the Fundamental Plane of radio galaxies. We find that the low-luminosity, ... -
Evolution of the ice phase in tropical altocumulus : SAMUM lidar observations over Cape Verde
(2009-09-16)The formation of the ice phase in tropical altocumulus has been studied with multiwavelength aerosol-cloud Raman lidar, wind Doppler lidar, and radiosonde, providing information on geometrical and optical properties, cloud ... -
Evolution of the ISM and Galactic Activity
(2005-02-01)We study the effects of time-dependent mass injection and heating on the evolution of the interstellar medium (ISM) in elliptical galaxies. As the large and luminous ellipticals have supermassive black holes at their cores, ... -
The evolution of the Oxford simple shape
(2002)The Oxford simple shape could, with some justification, be described as one of the ugliest and least dignified hood patterns in the world. This short paper takes as premise the belief that all Oxford hoods were at one time ... -
The Evolution of the Retail Trade sector in Iberian Cities from the Nineteenth Century to the Second World War.
(2017-05-16)The evolution of retail trade in European cities during the first decades of the twentieth century can be a powerful indicator about their urban and social dynamics. The growth in the number of shops, the spatial rearrangement ... -
The evolution of the scatter of the cosmic average color-magnitude relation : demonstrating consistency with the ongoing formation of elliptical galaxies
(2009-04-20)We present first measurements of the evolution of the scatter of the cosmic average early-type galaxy color-magnitude relation (CMR) from z = 1 to the present day, finding that it is consistent with models in which galaxies ... -
Evolution of the solar activity over time and effects on planetary atmospheres. II. κ1 Ceti, an analog of the sun when life arose on earth
(2010)The early evolution of Earth's atmosphere and the origin of life took place at a time when physical conditions at the Earth were radically different from its present state. The radiative input from the Sun was much enhanced ...