Development of ceramic production in the Kur River Basin (Fars, Iran) during the Neolithic. A compositional and technological approach using X-ray fluorescence spectroscopy and thin section petrography

This study aims to characterize the Neolithic ceramics (Mushki, Bashi, and Jari wares) of the Kur River Basin and reconstruct the origin of the raw materials and manufacturing technology. Neolithic ceramics from 13 different sites have been studied with handheld X-ray fluorescence (hXRF) spectroscopy and thin section petrography. The geochemical signature of these ceramics was defined, and four compositional groups were determined. The variation in these compositional groups most likely relates to the ceramic wares for the Mushki and Bashi ceramics and to the site or group of sites for the Jari ceramics. Additionally, sediment samples were studied with hXRF demonstrating the variability in the geochemistry of the area. To determine the composition of the slips used for Bashi and Jari ceramics and to compare them with the inner fabric of the vessels, micro X-ray fluorescence (μXRF) spectroscopy was applied. The combination of these archaeometrical techniques indicated the use of unaltered, fine-grained, and mainly alluvial clays without the addition of temper (except for chaff) for the production of the three studied wares and the use of different clay types through the Neolithic in the Kur River Basin

3-Dimensional Facial Analysis-Facing Precision Public Health.

Precision public health is a new field driven by technological advances that enable more precise descriptions and analyses of individuals and population groups, with a view to improving the overall health of populations. This promises to lead to more precise clinical and public health practices, across the continuum of prevention, screening, diagnosis, and treatment. A phenotype is the set of observable characteristics of an individual resulting from the interaction of a genotype with the environment. Precision (deep) phenotyping applies innovative technologies to exhaustively and more precisely examine the discrete components of a phenotype and goes beyond the information usually included in medical charts. This form of phenotyping is a critical component of more precise diagnostic capability and 3-dimensional facial analysis (3DFA) is a key technological enabler in this domain. In this paper, we examine the potential of 3DFA as a public health tool, by viewing it against the 10 essential public health services of the "public health wheel," developed by the US Centers for Disease Control. This provides an illustrative framework to gage current and emergent applications of genomic technologies for implementing precision public health

An Isolated Stellar-Mass Black Hole Detected Through Astrometric Microlensing

We report the first unambiguous detection and mass measurement of an isolated stellar-mass black hole (BH). We used the Hubble Space Telescope (HST) to carry out precise astrometry of the source star of the long-duration (t_E ~ 270 days), high-magnification microlensing event MOA-2011-BLG-191/OGLE-2011-BLG-0462, in the direction of the Galactic bulge. HST imaging, conducted at eight epochs over an interval of six years, reveals a clear relativistic astrometric deflection of the background star's apparent position. Ground-based photometry shows a parallactic signature of the effect of the Earth's motion on the microlensing light curve. Combining the HST astrometry with the ground-based light curve and the derived parallax, we obtain a lens mass of 7.1 +/- 1.3 M_Sun and a distance of 1.58 +/- 0.18 kpc. We show that the lens emits no detectable light, which, along with having a mass higher than is possible for a white dwarf or neutron star, confirms its BH nature. Our analysis also provides an absolute proper motion for the BH. The proper motion is offset from the mean motion of Galactic-disk stars at similar distances by an amount corresponding to a transverse space velocity of ~45 km/s, suggesting that the BH received a modest natal 'kick' from its supernova explosion. Previous mass determinations for stellar-mass BHs have come from radial-velocity measurements of Galactic X-ray binaries, and from gravitational radiation emitted by merging BHs in binary systems in external galaxies. Our mass measurement is the first ever for an isolated stellar-mass BH using any technique

Dating and formation of inland dunes along the river Scheldt and its tributaries : implications for the detection of Final Palaeolithic sites, campaign 2020 (NW Belgium)

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Exploring the possibilities of geochemical analyses on painted pottery of pre-Islamic Iran

The aim of this paper is to present the preliminary results of a geochemical analysis on pre-Islamic painted pottery. An archaeometrical study is undertaken on pre-Islamic painted pottery from excavations and surveys conducted by the late prof. dr. L. Vanden Berghe (Ghent University) during the 1950’s. These ceramics provide a sample of Iranian pre-islamic painted pottery that is representative over time and space. The applied analytical method is portable X-ray Fluorescence (pXRF), a non-destructive technique to study the elemental composition of ceramics. The results of these geochemical analyses reveal distinct regional and chronological differences, allowing a renewed classification of the studied ceramic. In turn, this work provides a future reference framework for the identification of pre-Islamic pottery. Moreover, the acquired data will be used to shed light on the development of pottery technology and on questions concerning production centres and the origin of primary materials. In this paper, the process of acquiring and interpreting this data will be outlined and the importance of such an interdisciplinary approach to improve the current understanding of regional cultures in pre-Islamic Iran will be illustrated