A high-resolution picture of kinship practices in an Early Neolithic tomb

Nature ◽  
2021 ◽  
Author(s):  
Chris Fowler ◽  
Iñigo Olalde ◽  
Vicki Cummings ◽  
Ian Armit ◽  
Lindsey Büster ◽  
...  
2015 ◽  
Vol 42 ◽  
Author(s):  
Salvador Pardo Gordó ◽  
Joan Bernabeu Aubán ◽  
Oreto García Puchol ◽  
Michael Barton ◽  
Sean M. Bergin

Here we discuss the importance of using the rich and growing database of high-precision, audited radiocarbon dates for high-resolution bottom-up modelling to focus on problems concerning the spread of the Neolithic in the Iberia. We also compare the spread of the Late Mesolithic (so-called Geometric) and the Early Neolithic using our modelling environment. Our results suggest that the source of radiocarbon data used to evaluate alternative hypotheses plays an important role in the results and open up new lines of research for the future.


2019 ◽  
Vol 114 ◽  
pp. 1-40
Author(s):  
Michael Fotiadis ◽  
Areti Hondroyanni-Metoki ◽  
Alexandra Kalogirou ◽  
Yannis Maniatis ◽  
Anna Stroulia ◽  
...  

Scores of Neolithic sites have been excavated in west Macedonia since the 1990s, yet the majority are relatively short-lived installations, lacking high-resolution stratigraphies and sequences of radiocarbon dates. Megalo Nisi Galanis, a large mound in the Kitrini Limni basin, near modern Kozani, is a rare exception to that pattern. Systematically surveyed and excavated in 1987–9 and 1993, this site covers a large part of the Neolithic period in a stratified, radiocarbon-dated sequence capped in places by thin deposits of the Early Bronze Age. We present here the critical details of that sequence and relate them to evidence from other, recently excavated sites in west Macedonia. Megalo Nisi Galanis was first settled in the Early Neolithic (late seventh millennium bc), was intensively occupied until the early phases of the Final Neolithic (around 4500 bc), and continued to be inhabited, albeit sparely or intermittently, until the transition from the Early to the Middle Bronze Age, about 1800 bc. By the end of occupation, the mound covered more than eight hectares and rose up to five metres above the surrounding landscape. We attend closely to features of that landscape that are likely to have played an important role in the history of occupation of the site and Kitrini Limni in the course of the Holocene.


2021 ◽  
Vol 7 (1) ◽  
pp. 1258-1273
Author(s):  
M. Mercè Bergadà ◽  
F. Xavier Oms

Abstract The microstratigraphic study of the Cova Colomera (Sant Esteve de la Sarga, Lleida, Spain) confirms that there are several discontinuous ovicaprid stabling episodes in the Late Cardial Neolithic sequence (c. 5250–4780 cal BC). There are episodes with and without combustion traces. From the burnt episodes, it has been possible to identify bedding and fodder due to their good preservation and abundance in the X-32 sector, specifically the level CE14. The main constituents are grassy remains and to a lesser extent, conifer twigs and needles, beech twigs, and box leaves. These data give an idea about the landscape near the cavity. From the nonburnt episodes, we emphasize the sector W-31, specifically the top of level CE13, in which bedding and fodder appear in a smaller quantity. Its components are also well preserved, with an emphasis on sheep/goat excrements in which it has been possible to identify part of their diet composed of leaves and culms of grasses (Poaceae). From these episodes and their components, we propose that Cova Colomera had different uses as a pen of a small size herd. In some episodes, the herd was more permanent in the cave, and therefore, more waste was generated, so burning was required; and in other episodes, occupation was more sporadic and the burning of waste was not so necessary. In short, Cova Colomera allows us to propose that the study of pastoral activities in caves and rockshelters is more complex than previous studies have shown and that it is necessary to analyze these records with high-resolution techniques to broaden the knowledge of these first livestock communities.


1967 ◽  
Vol 31 ◽  
pp. 45-46
Author(s):  
Carl Heiles

High-resolution 21-cm line observations in a region aroundlII= 120°,b11= +15°, have revealed four types of structure in the interstellar hydrogen: a smooth background, large sheets of density 2 atoms cm-3, clouds occurring mostly in groups, and ‘Cloudlets’ of a few solar masses and a few parsecs in size; the velocity dispersion in the Cloudlets is only 1 km/sec. Strong temperature variations in the gas are in evidence.


2019 ◽  
Vol 42 ◽  
Author(s):  
J. Alfredo Blakeley-Ruiz ◽  
Carlee S. McClintock ◽  
Ralph Lydic ◽  
Helen A. Baghdoyan ◽  
James J. Choo ◽  
...  

Abstract The Hooks et al. review of microbiota-gut-brain (MGB) literature provides a constructive criticism of the general approaches encompassing MGB research. This commentary extends their review by: (a) highlighting capabilities of advanced systems-biology “-omics” techniques for microbiome research and (b) recommending that combining these high-resolution techniques with intervention-based experimental design may be the path forward for future MGB research.


1994 ◽  
Vol 144 ◽  
pp. 593-596
Author(s):  
O. Bouchard ◽  
S. Koutchmy ◽  
L. November ◽  
J.-C. Vial ◽  
J. B. Zirker

AbstractWe present the results of the analysis of a movie taken over a small field of view in the intermediate corona at a spatial resolution of 0.5“, a temporal resolution of 1 s and a spectral passband of 7 nm. These CCD observations were made at the prime focus of the 3.6 m aperture CFHT telescope during the 1991 total solar eclipse.


1994 ◽  
Vol 144 ◽  
pp. 541-547
Author(s):  
J. Sýkora ◽  
J. Rybák ◽  
P. Ambrož

AbstractHigh resolution images, obtained during July 11, 1991 total solar eclipse, allowed us to estimate the degree of solar corona polarization in the light of FeXIV 530.3 nm emission line and in the white light, as well. Very preliminary analysis reveals remarkable differences in the degree of polarization for both sets of data, particularly as for level of polarization and its distribution around the Sun’s limb.


1988 ◽  
Vol 102 ◽  
pp. 41
Author(s):  
E. Silver ◽  
C. Hailey ◽  
S. Labov ◽  
N. Madden ◽  
D. Landis ◽  
...  

The merits of microcalorimetry below 1°K for high resolution spectroscopy has become widely recognized on theoretical grounds. By combining the high efficiency, broadband spectral sensitivity of traditional photoelectric detectors with the high resolution capabilities characteristic of dispersive spectrometers, the microcalorimeter could potentially revolutionize spectroscopic measurements of astrophysical and laboratory plasmas. In actuality, however, the performance of prototype instruments has fallen short of theoretical predictions and practical detectors are still unavailable for use as laboratory and space-based instruments. These issues are currently being addressed by the new collaborative initiative between LLNL, LBL, U.C.I., U.C.B., and U.C.D.. Microcalorimeters of various types are being developed and tested at temperatures of 1.4, 0.3, and 0.1°K. These include monolithic devices made from NTD Germanium and composite configurations using sapphire substrates with temperature sensors fabricated from NTD Germanium, evaporative films of Germanium-Gold alloy, or material with superconducting transition edges. A new approache to low noise pulse counting electronics has been developed that allows the ultimate speed of the device to be determined solely by the detector thermal response and geometry. Our laboratory studies of the thermal and resistive properties of these and other candidate materials should enable us to characterize the pulse shape and subsequently predict the ultimate performance. We are building a compact adiabatic demagnetization refrigerator for conveniently reaching 0.1°K in the laboratory and for use in future satellite-borne missions. A description of this instrument together with results from our most recent experiments will be presented.


Author(s):  
Robert M. Glaeser

It is well known that a large flux of electrons must pass through a specimen in order to obtain a high resolution image while a smaller particle flux is satisfactory for a low resolution image. The minimum particle flux that is required depends upon the contrast in the image and the signal-to-noise (S/N) ratio at which the data are considered acceptable. For a given S/N associated with statistical fluxtuations, the relationship between contrast and “counting statistics” is s131_eqn1, where C = contrast; r2 is the area of a picture element corresponding to the resolution, r; N is the number of electrons incident per unit area of the specimen; f is the fraction of electrons that contribute to formation of the image, relative to the total number of electrons incident upon the object.


Sign in / Sign up

Export Citation Format

Share Document