Morfometría de cerámicas grises catalanas: algunas consideraciones sobre la definición de tipos en cerámica común de época medieval y postmedieval

Body mass index, lipid profile, and hypertension contribute to prolonged QRS complex

During the past few years, many publications about computer applications in the field of drawing, classification and analysis of archaeological pottery have been presented at various congresses by various researchers. This paper will review and analyze the most relevant works published so far. It focuses on computer applications oriented towards the graphical visualization and analysis of data relevant to archaeological pottery. The intention is to order and systematize these data and to review those publications that are most relevant to computerized systems of archaeological pottery. This review and analysis will introduce the methodology used in the CATA project (Archaeological Wheel­made Pottery of Andalusia), the procedures used in the CATA project for the representation, archiving, analysis and retrieval of data concerning pottery vessels and their fragments. The main aim of the CATA project is to provide a scientific tool for the analysis of pottery finds in eastern Andalusia. These findings will be introduced into a database with documentational and graphical capabilities for visualizing pottery fragments and vessels. The objective is to create a general tool that can be applied to any kind of ceramic material found in any geographical location.

A series of samples for radiocarbon dating were collected in 2005 from the Biblioteca Magliabechiana archaeological excavation area in the center of Florence, Italy, in a project directed by the Dipartimento di Archeologia e Storia delle Arti of the University of Siena, in cooperation with the Soprintendenza per i Beni Architettonici e per il Paesaggio per le province di Firenze e Prato. This area is located near the Uffizi Galleries, close to the Roman town, the Arno River and one of its former tributaries. The area is peculiar for the Florentine urban context because it was free from urban development until the 12th century AD. The exposed stratigraphy showed the presence of several layers composed of natural sediments, partly the result of historical floods. Here, we report a series of 14C measurements on charcoal and seed samples collected on this excavation. 14C dating has been performed in the LABEC laboratory in Florence, on the accelerator mass spectrometry (AMS) beam line of the AMS-IBA 3MV Tandetron accelerator. We also had the opportunity to compare the 14C dates obtained with several series of samples previously collected in nearby archaeological areas. Results were consistent with the data obtained previously and, moreover, offer interesting new aspects to the interpretation of the archaeological findings.

A hot streak profile was produced experimentally at the inlet to a turbine vane annular cascade through the use of two pairs of opposed cold dilution jets. Time-averaged inlet temperature measurements were obtained in the facility with vanes installed, by traversing thermocouples across the inlet plane. A 3D, steady, RANS numerical model of the entire test section, including the dilution jets, was developed, the results of which were compared to the experimental measurements obtained. Six different turbulence models were implemented to determine the sensitivity of results to choice of model. It was found that each of the models predicted varying amounts of diffusion, and thus jet temperatures, at the inlet plane. Choice of turbulence model thus has a first order effect on diffusion. In general, the turbulence models predicted very similar positions of the jets within the vane inlet, with the RNG and Reynolds Stress models showing slightly increased penetration into the cross flow. All of the turbulence models underpredicted jet mixing and lateral spreading, which is a common finding with many studies on RANS modeling of jets in cross flow. Possible additional causes to the mismatch were also discussed, with the sensitivity to freestream turbulence intensity tested by conducting additional simulations. It was concluded that in addition to the difficulties associated with modeling jets in crossflow using RANS, the turbulence models’ poor performance under high free stream turbulence is a major contributor to the mismatch with the experiment.

En este trabajo se presentan los resultados de una detallada revisión de la cerámica doméstica de época altomedieval de una treintena de yacimientos del centro y noroeste peninsular. Mediante un análisis basado en las cadenas tecnológico-operativas se propone una secuenciación de los repertorios cerámicos entre los siglos V y VIII d. n. e. en torno a tres variables principales: tecnológica, formal y regional. De esta manera se propone una seriación cerámica de los conjuntos dividida en varias fases que permite una aproximación histórica en términos sociales y políticos a las sociedades altomedievales de este territorio.

Background Alopecia areata is an autoimmune hair loss which frequently starts in childhood. Its presentation had an extreme variability not only in the time of initial onset but also in the duration, extent, and pattern of hair loss during any given episode of active loss. Moreover, the course of disease is unpredictable, with spontaneous regrowth of hair occurring in 80% of patients within the first year and sudden relapse at any given time. Due to the clinical variability and unpredictable nature of spontaneous regrowth, diagnosis and management may be difficult and challenging. Objective The aim of this study is to evaluate the serum levels of IL-15 in active alopecia areata and correlate them with disease severity and activity according to dermoscopic findings. Methods This case-control study were conducted in Dermatology, Venereology and Andrology department, Ain Shams University Hospitals included 30 patients with different clinical variants of AA, the diagnosis was made via clinical examination and dermoscopic findings. In addition, 30 apparently healthy individuals of matched age and sex as a control group were included in the study. Results Dermoscopic examination among cases showed that the most common dermoscopic findings in patients were vellus hair and yellow dots, while the least common finding was exclamation mark hairs. On comparing serum IL-15 in patients and control groups, it was found that serum levels of IL-15 in patients were significantly higher than those in the control group. There was no statistically significant difference in serum IL-15 levels between patients with negative and positive pull test, nail involvement, or body involvement. Similarly, no statistically significant difference in serum IL-15 levels in patients with various subjective disease activity was detected. However, there was a highly significant difference between serum IL-15 levels in different SALT score groups, with the highest levels being in the S3 group. There was a highly significant difference between IL-15 levels in patients with and without black dots. Also, there was significant difference between IL-15 in patients with and without broken hair, and exclamation mark hair. There was no significant difference in level of IL-15 among patients with and without yellow dots, and with and without vellus hair. Conclusion On the basis of the current study, we can conclude that IL-15 is significantly elevated in AA patients when compared to the control subjects. It is also a possible marker of AA severity. It is positively correlated with dermoscopic findings in AA patients, so dermoscopic findings can be useful in evaluating severity of alopecia areata.

Along most of the European littoral, oysters were appreciated as a wholesome and palatable food from the Stone Age onwards, yet were transported much further from their natural habitats when long-distance trade in marine foodstuffs began in medieval times. The brackish waters of the Baltic Sea are not considered a suitable environment for this mollusc, and therefore all archaeological oyster shell finds are the result of import to the eastern Baltic. In this study, over 1000 shells found in different medieval and early modern archaeological contexts in Estonia were analysed, and the obtained data recorded in a data repository. Some conclusions are set out, based on shell size and shape, and breakage traces, but more detailed taphonomic studies are left for the future. This study identifies the earliest imports of oysters recorded by archaeological material and written sources. Both show records not much earlier than the 16th century AD. Although no information is preserved about the exact origin of oysters imported to Estonia, the oyster beds most probably exploited are those in the central eastern North Sea, i.e., the Wadden Sea.

This paper presents archaeobotanical results from Sardinia, an island in the western Mediterranean. The starting point is the material excavated at Duos Nuraghes near Borore, but remains provided by other sites are taken into account as well. Naked wheat, presumably a tetraploid wheat such as Triticum durum Desf. (macaroni wheat), and Hordeum vulgare L. (barley) are the most common finds from the Neolithic up to the Medieval period. Triticum dicoccum Schubl. (emmer), Lens culinaris Medik. (lentil), Pisum sativum L. (pea) and Vicia faba L. var. minor (horse bean) have been grown as well. A medieval context revealed Beta vulgaris L. (beet). The most common find in the category of fruits is Vitis vinifera L. (grape). The overall picture is one of continuity in agricultural practices. Nevertheless this picture may be false. In the early Bronze Age the cultivation of barley may have shifted from the naked variety towards the hulled variety. The Phoenicians may have introduced new cultivars of grapevine, although the native grapevine was not replaced by these. The weed taxa suggest some change in agriculture from Punic or Roman times onwards.

Medical imaging in nephropathia epidemica and their clinical correlations

The application of tandem mass spectrometry (MS/MS) to newborn screening has led to the detection of patients with a wider spectrum of inborn errors of metabolism. A definitive diagnosis can often be established early enough to start treatment before symptoms appear. Here, we review common biochemical findings in disorders caused by deficiency of 3-methylcrotonyl-CoA carboxylase, isobutyryl-CoA dehydrogenase, 2-methyl-3-hydroxybutyryl-CoA dehydrogenase, 3-ketothiolase, 2-methylbutyryl-CoA dehydrogenase, and medium chain acyl CoA dehydrogenase. The diagnosis of these disorders requires biochemical confirmation by measurement of plasma acylcarnitine profile, urine organic acids, and urine acylglycine profiles followed by measurement of enzyme activity or detection of causative mutations. Early treatment can improve the outcome of these disorders.

The classic kidney disease of HIV infection, HIV-associated nephropathy (HIVAN), is an aggressive form of collapsing focal segmental glomerulosclerosis with accompanying tubular and interstitial lesions. HIVAN was first described among African-Americans and Haitian immigrants with advanced HIV disease, an early suggestion of a strong genetic association. This genetic susceptibility was recently linked to polymorphisms on chromosome 22 in individuals of African descent. The association with advanced HIV infection and evidence from HIV-transgenic mice suggested the possibility that HIV directly infects the kidney and that specific HIV gene expression induces host cellular pathways that are responsible for HIVAN pathogenesis. Although combination antiretroviral therapy has substantially reduced the impact of HIVAN in the United States, continued growth of the HIV epidemic in susceptible African populations may have important public health implications. This article reviews recent progress in the pathogenesis...

103 Preoperative anemia is a risk factor for mortality and morbidity following aortic valve surgery

Today, rice (Oryza sativa L.) is the most important food ingredient of the dietary cultures in South China. It is consumed not only as a staple food, but also as an essential ingredient for rice noodles, deserts, cakes, pancakes and dishes in urban and rural areas. This food ingredient is domesticated from its wild ancestor, perennial wild rice (Oryza rufipogon Griff.). South China is one of the major habitats of wild rice, and domesticated rice is the major cultivar in this area today. However, recent archaeological studies indicate that the occurrence of rice cultivation and consumption in South China are the result of prehistoric migration and/or cultural expansion from the middle and lower Yangzi River Valley. Based on archaeological data, as well as results of neutron activation analysis of pottery, and phytolithic and isotopic analysis, it is argued that the cultivation and consumption of rice as food began by about 6,500~6,000 years ago in northern South China,

Supplemental material is available for this article. Keywords: Mammography, Breast, Machine Learning © RSNA, 2023.

<p>River corridor dynamics reflect nature-human interactions with respect to geomorphic process and form or ecological function and structure. The aim of this study was to investigate the role of extreme rainfall, flooding and anthropogenic impacts in the transformation of the Himalayan river corridor. The research was conducted in the mountain part of the Teesta River with catchment of about 8000 km<sup>2</sup> located in the Sikkim-Darjeeling Himalayas. The Teesta River originates from the glaciers in the northern Sikkim. Cutting schists and gneisses through the Darjeeling Himalayas the river flows into the Brahmaputra as its largest right-bank tributary in India and Bangladesh. The annual rainfall in the Darjeeling Himalayas ranges from 2000 to 4000 mm and monthly discharge of the Teesta River ranges from 150 to 1500 m<sup>3</sup>/s during the winter and monsoon seasons, respectively. On 3-5 October 1968, heavy rains of over 750 mm caused an extreme discharge of 17,000 m<sup>3</sup>/s and triggered extensive landslides. The water level rose by over 20 m, the highest level for any river in India in the last 70 years. The extreme flooding caused aggradation of the riverbed to 5-7 m. Between 1999 and 2016 four high dams were constructed in the mountain part of the Teesta catchment. The planned construction of further dams means that the catchment would have one of the highest average dam densities in the world.</p><p>The analysis focused on 28 km long and 600 wide river corridor with two high dams between the Rangit tributary and the Teesta outlet from the Darjeeling Himalayas. The active channel and land use were mapped using Corona program, SPOT and GoogleEarth satellite imagery every 5 years between 1965 and 2010. For hydrological analyses, daily rainfall from Kalimpong station, annual maximum and minimum water levels as well as discharges from two gauge stations located at the beginning and end of the Teesta corridor were used. The data were supplemented by own observations and measurements of profiles across the river at water gauge locations.</p><p>The results indicate that before the construction of the dams, specific stream power above 300 W/m<sup>2</sup>, capable of transforming the channel, was observed at the outlet of the Teesta from the Himalayas once every four years. The enlargement of the active channel after the 1968 flood, which took several years, was similar to its permanent enlargement as a result of the construction of two dams after 2010. The greatest landslide activity was the result of high rainfall and floods, while the creation of reservoirs contributed only marginally to landslide activation. Forest, which dominates the land use pattern in the Teesta corridor (72% in 1965), decreased by 10% up to 2020 as a result of extreme flooding, development of built-up areas and water inundation after reservoirs creation.</p>