Kaluza-Klein Theory without Extra Dimensions: Curved Clifford Space

A theory in which 16-dimensional curved Clifford space (C-space) provides a realization of Kaluza-Klein theory is investigated. No extra dimensions of spacetime are needed: "extra dimensions" are in C-space. It is shown that the covariant Dirac equation in C-space contains Yang-Mills fields of the U(1)xSU(2)xSU(3) group as parts of the generalized spin connection of the C-space.Comment: 15 pages; References added, typos correcte

Jebel Moya (Sudan): new dates from a mortuary complex at the southern Meroitic frontier

This paper proposes a new chronology for the burial complex at Jebel Moya, south-central Sudan. It reassesses the body of evidence from Sir Henry Wellcome's original 1911–1914 excavations in order to place the site within a firm chronological framework by: (a) applying an attribute-based approach to discern discrete pottery assemblages; and (b) applying initial OSL dates to facilitate the reliable dating of this site for the first time. Jebel Moya is re-interpreted as a burial complex situated on the southern periphery of the late Meroitic state, and its potential to serve as a chronological and cultural reference point for future studies in south-central and southern Sudan is outlined

MOYA MOYA DISEASE- A REVIEW

Moya moya syndrome is a specific chronic cerebrovascular occlusive disease first reported by Japanese surgeons in 1957. The disease moya moya, which is a Japanese mimetic word, gets its characteristic name due to the appearance of puff of smoke on relevant angiographs resultant from the tangle of tiny vessels in response to stenosis. This makes the blood to leak out of the arteries, causing pressure to the brain. It may cause ischemic attacks or cerebal infarction, which is more frequent in children than in adults. The highest peak is in childhood at less than 10 years of age. The disease causes constrictions primarily in the internal carotid artery, and often extends to the middle and anterior cerebral arteries, branches of the internal carotid artery inside the skull. When the internal carotid artery becomes completely blocked, the fine collateral circulation that it supplies is obliterated. The clinical features are strokes, recurrent transient ischemic attacks (TIAs), sensorimotor paralysis (numbness and paralysis of the extremities), convulsions and/or migraine -like headaches. Moreover, following a stroke, secondary bleeding may occur. Such bleeding, called hemorrhagic strokes.Treatment with perivascular sympathectomy and superior cervical ganglionectomy. Etiology of the disease is still unknown; however, multifactorial inheritance is considered possible because of a higher incidence of the disease in Japanese and Koreans and approximately 10% of familial occurrence among the Japanese. Recent genetic studies suggest some responsible genetic foci in chromosomes 3, 6 and 17.Keywords: Moyamoya disease, Intracranial hemorrhage, Proteomics, Stenosis

Nuclear transparencies in relativistic A(e,e'p) models

Relativistic and unfactorized calculations for the nuclear transparency extracted from exclusive A(e,e'p) reactions for 0.3 \leq Q^2 \leq 10 (GeV/c)^2 are presented for the target nuclei C, Si, Fe and Pb. For Q^2 \geq 0.6 (GeV/c)^2, the transparency results are computed within the framework of the recently developed relativistic multiple-scattering Glauber approximation (RMSGA). The target-mass and Q^2 dependence of the RMSGA predictions are compared with relativistic distorted-wave impulse approximation (RDWIA) calculations. Despite the very different model assumptions underlying the treatment of the final-state interactions in the RMSGA and RDWIA frameworks, they predict comparable nuclear transparencies for kinematic regimes where both models are applicable.Comment: 15 pages, 4 figure

Moya Moya's disease in a 20-year-old female patient – case report

Introduction Moya-Moya disease is a rare disease of unknown etiology that causes pathological occlusion changes in the large intracranial arteries - the internal carotid artery and the proximal parts of the anterior and middle cerebral arteries. The disease occurs most often among young Asian women, and its most intensive development falls on the first decade of life. In most cases, Moya-Moya occurs in the form of transient ischemic attacks, strokes or cerebral hemorrhages. Case report A 20-year-old woman was admitted to the Neurosurgery Clinic for the surgical treatment of Moya-Moya disease. Patient with paroxysmal paresis of left and right limbs several times since 2016. In CT, MRI and angio-MRI, as well as DSA, critical narrowing of the internal carotid arteries, obstruction of the anterior and central lights of the cerebral arteries, with small vessels around the central arteries and their branches marked - bilaterally, but mainly on the right. The changes create an image resembling "clouds of smoke" that is characteristic of Moya-Moya's disease. The patient was qualified for surgical treatment - revascularization of the cerebral cortex with the use of periosteal strips by multi-hole trepanation in the right fronto-temporo-parietal region. Periosteal stripes were introduced into the subarachnoid space to reproduce vessels of the cerebral cortex. Conclusion Because of the rarity of Moya Moya disease, it is very important to be alert vigilantly to avoid complications such as tetraparesis or mental retardation. Japanese surgery allows revascularization of the cerebral cortex without the need for an arterial bypass. The presented surgical method ensures good treatment effects and is preferred in young people due to the safety of the technique used. Keywords: Moya Moya disease, neurosurgery, hemorrhage

Moya Moya disease

Moya Moya disease is an entity, which represents chronic idiopathic non-inflammatory progressive occlusion of circle of Willis, which in course of time leads to development of collateral vessels. It is more common in Japanese individuals. This should be considered as a differential in young stroke. Here we present a case of 8-year-old young female with right hemiparesis and headache with a known history of seizure disorder

The Southern Frontier of the Meroitic State: The View from Jebel Moya

The site of Jebel Moya, excavated in the early twentieth century, represents arguably the largest pastoral mortuary complex in Africa. Jebel Moya is resituated in relation to the neighbouring Meroitic-era agro-pastoral settlements and the only known Meroitic trading station (Sennar) in the southern Gezira Plain, Sudan. It is the first time that the known localities in the southern Gezira and southern Meroitic cemeteries have been compared, in an attempt to elucidate the different social organisation reflected in mortuary assemblages between the core and the periphery of the Meroitic State. New questions are posed for (1) the applicability of mortuary theory to pastoral cemeteries, and (2) the nature of zones of interaction on the frontier of the Meroitic State, through the application of new statistical and spatial analyses of the mortuary assemblages and the site’s reinterpretation as a pastoral, instead of an agro-pastoral, mortuary complex

Discursos pronunciados en el acto de investidura de Doctora "Honoris Causa" de la Excelentísima Señora Dª Susan Tufts Fiske

Presentado por el Doctor Don Miguel Carlos Moya MoralesTexto del discurso de la Doctora Susan T. Fiske en español e inglé