62,903 research outputs found
Deconstructing the Sanders Focus and the Sanders Phase : A Reply to Perttula Regarding the Taxonomy and Significance of the So-called Sanders Focus, or Sanders Phase, Pottery of Northeast Texas and Southeast Oklahoma
Perttula is correct in pointing out that there are numerical errors in a recently published table of mine. A revised version is presented here as Table 1. Although several of these errors are numerically large and might have caused problems had they gone uncorrected, Perttula is not correct in suggesting that they are serious in the sense that they have affected the conclusions I reached based on the table, the insinuation being that they weaken my Sanders entrepot hypothesis. They do not. That hypothesis is part of the reinterpretation of the archeology and bioanthropology of the Arkansas Valley and the Red River Valley which I have been developing for more than eight years. It could hardly be weakened by errors in this table which is simply a compilation of the pottery of the five so-called Sanders focus/phase types reported from the list of sites with probable Sanders phase components recently proffered by Bruseth, Wilson, and Perttula
Probing Leptonic Models at the LHC
Models of neutrino mass generation provide well motivated scenarios of
Beyond-the-Standard-Model physics. The synergy between low energy and high
energy LHC searches facilitates an effective approach to rule out, constrain or
ideally pinpoint such models. In this proceedings report, we provide a brief
overview of scenarios where searches at the LHC can help determine the
mechanism of light neutrino masses and potentially falsify baryogenesis
mechanisms.Comment: Talk presented at CIPANP2015. 9 pages, 3 figure
The Northern Caddoan Area was not Caddoan
In this paper I will challenge one of the major unexamined assumptions in the archeology of Eastern North America, the assumption that the Arkansas River Valley and Ozark Highland regions of eastern Oklahoma and western Arkansas, the so-called northern Caddoan Area, was the home of Caddo people who were closely related culturally and linguistically to the Caddo people of southwest Arkansas, northwest Louisiana, east Texas, and southeast Oklahoma. I will propose, instead, that the archeology of this locality is much more complex and interesting than the conventional wisdom would have it. What is involved here, I suggest, is not one region but parts of three, with three culturally and biologically distinct populations. Furthermore, I will propose that Spiro, the key site in this locality, is actually two sites, one Caddoan, the other Mississippian
Coles Creek Culture and the Trans-Mississippi South
Certain Lower Mississippi Valley (LMV) traits, mostly Coles Creek ceramic traits, but also traits such as temple mounds and certain mortuary patterns, appear at Late Fourche Maline and Early Caddo sites in the Trans-Mississippi South, particularly at sites in the Red River Valley in northwest Louisiana and southwest Arkansas. Explaining how these traits got there and understanding their role in the development of Caddo culture is one of the basic problems in the archaeology of this area. The conventional explanation has long been that they represent a full scale intrusion of Coles Creek culture into the Trans-Mississippi South. Thus Michael Hoffman has created a Crenshaw phase of Coles Creek culture in the Great Bend region of the Red River Valley in southwest Arkansas, and Clarence H. Webb attributed the initial major occupation at the Mounds Plantation site in northwest Louisiana to Coles Creek peoples who laid out the plaza, possibly constructed Mound 2 as a quadrilateral temple substructure, and--at the opposite end of the plaza--established a burial area where Mound 5 sits
A Summary of the History of the Caddo People
I am pleased and very honored that you have invited me here today to tell you something about the past of the Caddo people as it is known to archaeologists. This is a subject that has been both my occupation and my major preoccupation for more than 25 years. The story that I and other archaeologists have been piecing together over many years is long, complex, and endlessly fascinating. It is a heritage that anyone could be proud of. Let me give you some of the highlights.
The story began over 11,500 years ago--or about 9,500 B.C.--when the first people arrived in the historic Caddo territory of Northwest Louisiana, Southwest Arkansas, East Texas, and Southeast Oklahoma. There were not many of them, perhaps only a hundred or so in this whole area at first. And the world they lived in was very different from the world today. It was cold, about like northern Maine or northern Michigan today, with forests of spruce and birch, because the Ice Age was still going on. They were probably dressed like Eskimos in carefully sewn parkas, trousers, and boots. We know this because many of the stone tools they left behind are tools for preparing hides and for making the bone needles necessary to sew them into clothing. They probably lived in skin tepees like those of the historic Plains Indians, but smaller, because they did not have horses to carry their gear from place to place. They did have dogs and they probably trained them to work as pack animals
A comparative study of public grade school graduates and parochial grade school graduates in the Huntingburg High School
Not available.Frank F. Tucker, Jr.Not ListedNot ListedMaster of ScienceDepartment Not ListedCunningham Memorial Library, Terre Haute, Indiana State University.isua-thesis-1950-tuckerMastersTitle from document title page. Docmuent formatted into pages: contains 33p. : ill. Includes appendix and bibliography
Lepton Flavour Violation and theta(13) in Minimal Resonant Leptogenesis
We study the impact of minimal non-supersymmetric models of resonant
leptogenesis on charged lepton flavour violation and the neutrino mixing angle
theta(13). Possible low-scale flavour realisations of resonant tau-, mu- and
e-leptogenesis provide very distinct and predictive frameworks to explain the
observed baryon asymmetry in the Universe by sphaleron conversion of an
individual tau-, mu- and e-lepton-number asymmetry which gets resonantly
enhanced via out-of-equilibrium decays of nearly degenerate heavy Majorana
neutrinos. Based on approximate flavour symmetries, we construct viable
scenarios of resonant tau-, mu- and e-leptogenesis compatible with universal
right-handed neutrino masses at the GUT scale, where the required
heavy-neutrino mass splittings are generated radiatively. The heavy Majorana
neutrinos in such scenarios can be as light as 100 GeV and their couplings to
two of the charged leptons may be large. In particular, we explicitly
demonstrate the compelling role that the three heavy Majorana neutrinos play,
in order to obtain successful leptogenesis and experimentally testable rates
for lepton flavour violating processes, such as mu --> e gamma and mu --> e
conversion in nuclei.Comment: 40 pages, 9 figures, PRD versio
Minimal Resonant Leptogenesis and Lepton Flavour Violation
We discuss minimal non-supersymmetric models of resonant leptogenesis, based
on an approximate flavour symmetries. As an illustrative example, we consider a
resonant tau-leptogenesis model, compatible with universal right-handed
neutrino masses at the GUT scale, where the required heavy-neutrino mass
splittings are generated radiatively. In particular, we explicitly demonstrate,
how a minimum number of three heavy Majorana neutrinos is needed, in order to
obtain successful leptogenesis and experimentally testable rates for processes
of lepton flavour violation, such as mu --> e gamma and mu --> e conversion in
nuclei.Comment: 7 pages, invited talk given by AP at the international conference
GUT2012, Kyoto, Japan, 15-17 March 201
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