Browsing by Title
Now showing items 7649-7668 of 24132
-
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 ... -
Evolution of the spin, spectrum and super-orbital period of the ultraluminous X-ray pulsar M51 ULX7
(2022-01-21)M51 ULX7 is among a small group of known ultra luminous X-ray pulsars (ULXPs). The neutron star powering the source has a spin period of 2.8 s, orbits its companion star with a period of 2 days, and a super orbital period ... -
The evolution of ventral intermediate nucleus targeting in MRI-guided focused ultrasound thalamotomy for essential tremor: an international multi-center evaluation
(2024-03-26)Background: The ventral intermediate nucleus (VIM) is the premiere target in magnetic resonance-guided focused ultrasound (MRgFUS) thalamotomy for tremor; however, there is no consensus on the optimal coordinates for ... -
Evolution of X-Ray Activity in <25 Myr Old Pre-main Sequence Stars
(2022-08-10)Measuring the evolution of X-ray emission from pre-main-sequence (PMS) stars gives insight into two issues: the response of magnetic dynamo processes to changes in the interior structure, and the effects of high-energy ... -
The Evolution, Analysis, and Design of Minimal Spiking Neural Networks for Temporal Pattern Recognition
(2023-04-28)All sensory stimuli are temporal in structure. How a pattern of action potentials encodes the information received from the sensory stimuli is an important research question in neurosciencce. Although it is clear that ... -
The evolutionary connection between QSOs and SMGs: molecular gas in far-infrared luminous QSOs at z ~ 2.5
(2012)We present IRAM Plateau de Bure Interferometer observations of the 12CO(3-2) emission from two far-infrared luminous QSOs at z ~ 2.5 selected from the Herschel-ATLAS survey. These far-infrared bright QSOs were selected to ... -
Evolutionary conservation of human ketodeoxynonulosonic acid production is independent of sialoglycan biosynthesis
(2021-03-01)Human metabolic incorporation of nonhuman sialic acid (Sia) N-glycolylneuraminic acid into endogenous glycans generates inflammation via preexisting antibodies, which likely contributes to red meat-induced atherosclerosis ... -
Evolutionary conservation of influenza A PB2 sequences reveals potential target sites for small molecule inhibitors
(2017-09-01)The influenza A basic polymerase protein 2 (PB2) functions as part of a heterotrimer to replicate the viral RNA genome. To investigate novel PB2 antiviral target sites, this work identified evolutionary conserved regions ... -
Evolutionary Considerations on the Emerging Subculture of the E-psychonauts and the Novel Psychoactive Substances : A Comeback to the Shamanism?
(2017-12-31)BACKGROUND: Evolutionary research on drug abuse has hitherto been restricted to proximate studies, considering aetiology, mechanism, and ontogeny. However, in order to explain the recent emergency of a new behavioral pattern ... -
Evolutionary dynamics of group formation
(2017-11-14)Group formation is a quite ubiquitous phenomenon across different animal species, whose individuals cluster together forming communities of diverse size. Previous investigations suggest that, in general, this phenomenon ... -
Evolutionary economics
(Unesco, 2011) -
Evolutionary economics and the markets-as-networks approach
(2006-10)The paper analyzes the similarities and differences between the markets-as-networks (or IMP) tradition in industrial marketing and evolutionary economics. Five analytical dimensions are used: unit of analysis, methodological ...