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Analogous Data (analogous + data)

Distribution by Scientific Domains

Humanities and Social Sciences	50%

Selected Abstracts

ARGUING OVER [THE] REMOTE CONTROL: WHY INDIGENOUS POLICY NEEDS TO BE BASED ON EVIDENCE AND NOT HYPERBOLE

ECONOMIC PAPERS: A JOURNAL OF APPLIED ECONOMICS AND POLICY, Issue 1 2007
BOYD H. HUNTER
Recent public debate on Indigenous issues has been provoked, inter alia, by a 2005 Centre for Independent Studies paper by Helen Hughes and Jenness Warin, who focused on the extent to which policies have been effective in improving the living conditions of Indigenous Australians since the era of self-determination commenced. Unfortunately, the quality of historical data is questionable, and hence we need an appreciation of the reliability of estimates. The 2002 National Aboriginal and Torres Strait Islander Social Survey allows a detailed interrogation of the reliability of estimates. This paper critically analyses socioeconomic changes between 1994 and 2002 for remote and other areas by comparing the recent data with analogous data collected in 1994. Changes in health status and a range of socio-economic indicators are documented to provide a more balanced assessment of the level of economic and social development in the respective areas. [source]

ECOLOGICAL SPECIATION IN GAMBUSIA FISHES

EVOLUTION, Issue 9 2007
R. Brian Langerhans
Although theory indicates that natural selection can facilitate speciation as a by-product, demonstrating ongoing speciation via this by-product mechanism in nature has proven difficult. We examined morphological, molecular, and behavioral data to investigate ecology's role in incipient speciation for a post-Pleistocene radiation of Bahamas mosquitofish (Gambusia hubbsi) inhabiting blue holes. We show that adaptation to divergent predator regimes is driving ecological speciation as a by-product. Divergence in body shape, coupled with assortative mating for body shape, produces reproductive isolation that is twice as strong between populations inhabiting different predator regimes than between populations that evolved in similar ecological environments. Gathering analogous data on reproductive isolation at the interspecific level in the genus, we find that this mechanism of speciation may have been historically prevalent in Gambusia. These results suggest that speciation in nature can result as a by-product of divergence in ecologically important traits, producing interspecific patterns that persist long after speciation events have completed. [source]

Geochemical and Magnetic Provenancing of Roman Granite Columns from Andalucía and Extremadura, Spain

OXFORD JOURNAL OF ARCHAEOLOGY, Issue 2 2002
Olwen Williams-Thorpe
One hundred and fifty two granite columns were examined in eight towns and archaeological sites in Andalucía and Extremadura, Spain, in order to determine the geological provenance of the columns. Three non-destructive methods of characterization were used: mineralogical features, magnetic susceptibility, and concentrations of radioelements (K, U, Th) determined by portable gamma ray spectrometry. Columns were compared with potential sources within Spain and in the Mediterranean area using analogous data previously published and also new data obtained for this work. The majority of the columns are made of Spanish granites, some of which were probably quarried near Mérida. Different chemical types of Spanish granites were used in the northern part of the area studied (Extremadura) and in the southern part (Andalucía). Twenty five columns are not of Spanish granites, but were imported from other sources, namely the Troad and Kozak Da, areas of western Turkey, the Italian islands of Elba and/or Giglio, and Sardinia (confirming a column previously identified in the literature). The imported columns are found in Itálica, Hispalis (Seville) and Astigi (Écija), and were probably carried along the River Guadalquivir and its tributaries. [source]

Lanthanide(III) Complexes of 4,10-Bis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane-1,7-diacetic acid (trans -H6do2a2p) in Solution and in the Solid State: Structural Studies Along the Series

CHEMISTRY - A EUROPEAN JOURNAL, Issue 28 2010
M. Paula
Abstract Complexes of 4,10-bis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane-1,7-diacetic acid (trans -H6do2a2p, H6L) with transition metal and lanthanide(III) ions were investigated. The stability constant values of the divalent and trivalent metal-ion complexes are between the corresponding values of H4dota and H8dotp complexes, as a consequence of the ligand basicity. The solid-state structures of the ligand and of nine lanthanide(III) complexes were determined by X-ray diffraction. All the complexes are present as twisted-square-antiprismatic isomers and their structures can be divided into two series. The first one involves nona-coordinated complexes of the large lanthanide(III) ions (Ce, Nd, Sm) with a coordinated water molecule. In the series of Sm, Eu, Tb, Dy, Er, Yb, the complexes are octa-coordinated only by the ligand donor atoms and their coordination cages are more irregular. The formation kinetics and the acid-assisted dissociation of several LnIII,H6L complexes were investigated at different temperatures and compared with analogous data for complexes of other dota-like ligands. The [Ce(L)(H2O)]3, complex is the most kinetically inert among complexes of the investigated lanthanide(III) ions (Ce, Eu, Gd, Yb). Among mixed phosphonate,acetate dota analogues, kinetic inertness of the cerium(III) complexes is increased with a higher number of phosphonate arms in the ligand, whereas the opposite is true for europium(III) complexes. According to the 1H,NMR spectroscopic pseudo-contact shifts for the Ce,Eu and Tb,Yb series, the solution structures of the complexes reflect the structures of the [Ce(HL)(H2O)]2, and [Yb(HL)]2, anions, respectively, found in the solid state. However, these solution NMR spectroscopic studies showed that there is no unambiguous relation between 31P/1H lanthanide-induced shift (LIS) values and coordination of water in the complexes; the values rather express a relative position of the central ions between the N4 and O4 planes. [source]