Search results for "upper"
showing 10 items of 987 documents
Real-life assessment of chronic rhinosinusitis patients using mobile technology: the mySinusitisCoach project by EUFOREA
2020
Abstract Background Chronic rhinosinusitis (CRS) is a chronic inflammatory disease associated with a substantial personal and socioeconomic burden. Monitoring of patient‐reported outcomes by mobile technology offers the possibility to better understand real‐life burden of CRS. Methods This study reports on the cross‐sectional evaluation of data of 626 users of mySinusitisCoach (mSC), a mobile application for CRS patients. Patient characteristics of mSC users were analysed as well as the level of disease control based on VAS global rhinosinusitis symptom score and adapted EPOS criteria. Results The mSC cohort represents a heterogeneous group of CRS patients with a diverse pattern of major sy…
Identifying the Unknown Content of an Ancient Egyptian Sealed Alabaster Vase from Kha and Merit’s Tomb Using Multiple Techniques and Multicomponent S…
2020
This article highlights the multianalytical study of exuded liquid from an ancient Egyptian sealed alabaster vase by Master's students in an applied chemistry for cultural heritage course. Master students are introduced to the field of Archaeometry that see the collaboration of experts in different areas of research such as conservators, curators of museums, physicists, chemists, etc. The sample is a residue exuded on the linen strip sealing an ancient Egyptian alabaster vase (inventory number S.8448) from the collection of the Museo Egizio in Turin (Italy). The students start to plan the noninvasive investigation by X-ray fluorescence (XRF), transmission electron microscopy (TEM), and ener…
Linear and cyclic radio k-labelings of trees
2007
International audience; Motivated by problems in radio channel assignments, we consider radio k-labelings of graphs. For a connected graph G and an integer k ≥ 1, a linear radio k-labeling of G is an assignment f of nonnegative integers to the vertices of G such that |f(x)−f(y)| ≥ k+1−dG(x,y), for any two distinct vertices x and y, where dG(x,y) is the distance between x and y in G. A cyclic k-labeling of G is defined analogously by using the cyclic metric on the labels. In both cases, we are interested in minimizing the span of the labeling. The linear (cyclic, respectively) radio k-labeling number of G is the minimum span of a linear (cyclic, respectively) radio k-labeling of G. In this p…
One-dimensional families of projections
2008
Let m and n be integers with 0 < m < n. We consider the question of how much the Hausdorff dimension of a measure may decrease under typical orthogonal projections from onto m-planes provided that the dimension of the parameter space is one. We verify the best possible lower bound for the dimension drop and illustrate the sharpness of our results by examples. The question stems naturally from the study of measures which are invariant under the geodesic flow.
Last Glacial Human Settlement in Eastern Cantabria (Northern Spain)
2002
While the excavation of individual sites remains fundamental to the creation of the Palaeolithic archeological record, increasingly the focus of prehistoric research is on human adaptations to and within natural regions. Such a reorientation implies viewing sites and occupations as samples of different suites of activities in various habitats across space and time; it is dependent on the use of radiocarbon to date and relate occupation residues among sites; and it necessitates the application of methods to uncover patterns of human mobility as an integral aspect of subsistence economy, demographic arrangements and social relations. This paper contributes to the regional study of Last Glacia…
An approach to lithic raw material procurement at the middle Palaeolithic site Abrigo de la Quebrada (Chelva, Valencia)
2011
We offer a preliminary characterisation of the lithic raw-materials found in levels I-III of the Middle Paleolithic site of Abrigo de la Quebrada. The artifacts were excavated in the field seasons of 2004 and 2007, have already been the object of a preliminary technological assessment (Villaverde et al. 2008), and their analysis has been preceded by a survey of local procurement sources, carried out in 2008. We present, in a regional context, the different raw-material categories recognized (by means of a macroscopic study), and variants thereof, and we describe the different outcrops identified. Based on these data, we attempt a preliminary assessment of the resource catchments and mobilit…
Abric de la Ratlla del Bubo (Crevillent, Alicante). Results of the 1986-1991 campaigns. New data on its palaeolithic sequence
2022
El Abric de la Ratlla del Bubo (Crevillent, Alicante) es uno de los yacimientos clave para el conocimiento del Paleolítico superior en el área central del Mediterráneo ibérico, especialmente en lo que a sus fases iniciales se refiere. El yacimiento ha sido objeto de varias intervenciones arqueológicas, tanto clandestinas como científicas. Sin embargo, hasta este trabajo, la información disponible era parcial y, en muchos casos, remitía a materiales sin referencia estratigráfica. En este estudio se exponen los resultados del análisis del material lítico, del registro vegetal y de la fauna recuperada en las campañas de 1986 a 1991. Además, se presenta una amplia serie de dataciones radiocarbó…
Materiales del Paleolítico Superior en Cova Negra (Xàtiva) y su interés para establecer los procesos de su secuencia estratigráfica
2017
En este trabajo se analizan los materiales líticos adscritos al Paleolítico Superior obtenidos en Cova Negra a lo largo de las campañas de excavación de los años 30, 50 y 80 del pasado siglo y en las campañas de 2013-2016. La atención se centra en el estudio de los soportes, los núcleos y el material retocado, y se efectúa una primera aproximación con respecto a la cronología y periodos a los que remiten las piezas retocadas. El principal interés de estos materiales reside en confirmar que la ocupación de la cavidad no se limitó al Paleolítico Medio, ni a momentos iniciales de la secuencia del Paleolítico Superior, lo que facilita una evaluación del alcance de los procesos de alteración pos…
From sepulchre to butchery-cooking: Facies analysis, taphonomy and stratigraphy of the Upper Palaeolithic post burial layer from the San Teodoro Cave…
2020
Abstract The San Teodoro Cave is considered the most significant witness of the first, Epigravettian, human colonization of Sicily from the Italian continent. Furthermore the site is a paradigmatic horizon in the Pleistocene faunal record, demonstrating a progressive transition from mega faunas to smaller-sized, Boreal, faunas. The site has been repeatedly studied and excavated, with different aims and approaches, leading to an interpretation of Epigravettian burial site and daily attendance. Here we propose a reappraisal of the study of the stratigraphy of the site, and in particular of the bone-rich layer (PAL) accumulated over the red ochre layer that apparently sealed all the different …
La Cova de l’Hort de Cortés-Volcán del Faro (Cullera, Ribera Baixa, País Valenciano). Datos para la discusión de las ocupaciones presolutrenses
2020
Los resultados de las excavaciones realizadas entre 1968 y 1984 en la Cova de Hort de Cortés- Volcán del Faro quedaron limitados a identificar materiales solutrenses, magdalenienses y neolíticos-calcolíticos. Una lectura crítica de la Memoria de excavaciones, publicada en 2003, permitió plantear la posibilidad de la presencia de ocupaciones anteriores, posiblemente gravetienses. En 2018 se iniciaron nuevos trabajos en el yacimiento, dentro de un proyecto que pretende recuperar información a partir de los cortes de las antiguas excavaciones. Los datos obtenidos en el área más externa (corte frontal posterior, cuadrícula O4) han permitido retomar la discusión sobre la existencia de los nivele…