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Distinctive Type (distinctive + type)

Distribution by Scientific Domains

Humanities and Social Sciences	50%

Selected Abstracts

Pyothorax-associated lymphoma (PAL): a western case with marked angiocentricity and review of the literature

HISTOPATHOLOGY, Issue 1 2004
A Androulaki
Aims :,To report a case of pyothorax-associated lymphoma in a non-immunocompromised 78-year-old man with a 45-year history of tuberculous pleuritis and left pleural effusion. Pyothorax-associated lymphoma is a high-grade non-Hodgkin's lymphoma occurring in 2% of patients with long-standing tuberculous pleuritis and pyothorax. Pyothorax-associated lymphoma is frequently Epstein,Barr virus (EBV)-associated, mainly reported in Japan but exceedingly rare in western countries. Methods and results :,Histology revealed a high-grade, diffuse large B-cell lymphoma with immunoblastic and plasmacytoid features and marked angiocentricity with focal destruction of the vessel walls. Immunohistochemistry revealed a post germinal B-cell phenotype. RNA in-situ hybridization and molecular analysis showed a latent EBV infection and absence of human herpes virus-8 (HHV-8). Conclusions :,Pyothorax-associated lymphoma represents a rare but distinctive type of diffuse large B-cell lymphoma, with characteristic clinico-epidemiological, immunohistological, and biological features. [source]

ANATOLIA AND THE BALKANS, ONCE AGAIN , RING-SHAPED IDOLS FROM WESTERN ASIA AND A CRITICAL REASSESSMENT OF SOME ,EARLY BRONZE AGE' ITEMS FROM ,K,ZTEPE, TURKEY

OXFORD JOURNAL OF ARCHAEOLOGY, Issue 1 2007
THOMAS ZIMMERMANN
Summary. The ring-shaped idol pendant, a distinctive type of Chalcolithic ritual (?) jewellery, is discussed with regard to its chronology in the Balkans in light of its occasional appearance in Asia Minor. Known from domestic contexts, funerals and hoards (?), none of the so far documented Anatolian pendants (clearly another aspect testifying to the well-known Anatolian,Balkan connections in the fourth millennium BC) can be dated later than the Late Chalcolithic/Early Bronze Age I. This fact provides further evidence for the developing hypothesis that certain inventories from ,kiztepe, the only prehistoric reference site on the Turkish Black Sea coast excavated on a large scale, need some profound chronological redating. Selected features and levels dated to ,Early Bronze Age II,III' at ,kiztepe seem to be several centuries older than currently believed, which has implications for the overall chronological range of these pendants. [source]

The Innovative Materiality of Revitalization Movements: Lessons from the Pueblo Revolt of 1680

AMERICAN ANTHROPOLOGIST, Issue 3 2008
MATTHEW LIEBMANN
ABSTRACT, Although Wallace's revitalization movement model has been successfully utilized in scores of ethnographic and ethnohistorical studies of societies throughout the world, revitalization is considerably less well documented in archaeological contexts. An examination of the materiality of revitalization movements affords an opportunity to redress this lack by investigating how material culture creates and constrains revitalization phenomena. In this article, I reconsider the revitalization model through a case study focusing on the archaeology of the Pueblo Revolt of 1680, emphasizing the central role of materiality in the formation and mediation of these movements. In doing so, I examine the archaeological signatures of revitalization movements, concluding that they are highly negotiated and heterogeneous phenomena and that the materiality of these episodes cultivates cultural innovation. I also seek to demonstrate that the distinctive types of material culture produced through revitalization are not epiphenomenal but, rather, are crucially constitutive of revitalizing processes. [source]

Morphological Analysis of the Lung of Neonatal Yak

ANATOMIA, HISTOLOGIA, EMBRYOLOGIA, Issue 2 2010
B. Yang
Summary With 20 figures and 5 tables Although yaks play an important role as companion or pack and draught animals on Chinese plateaus in alpine and sub-alpine regions, morphological studies and anatomical data on the lung of yak are sparse. To provide anatomical descriptions and morphometric data, 10 one-day-old yaks were examined by means of dissection, light and electron microscopy. The measurements of lung were made on dissected specimens and histological sections. Unequal dichotomous branching was demonstrated in the dissected tracheobronchial tree. The diameters of bronchial airways and height of epithelium were measured, and showed that the variation of diameters in airways was always greater than that of height of epithelium. In addition, the thickness of muscularis, cartilage and adventitia was examined, as well as the number of goblet and Clara cells in airways. Ultrastructural studies showed that the surface epithelium was mainly composed of goblet, ciliated, Clara and basal cells, similar to that in other domestic animals. Under electron microscope, two distinctive types of ciliated cells could be seen in the tracheobronchial epithelium. The first type contained some mitochondria, distended smooth endoplasmic reticulum (SER), little rough endoplasmic reticulum (RER) and numerous vacuoles in electron-lucent cytoplasm. The second type had dense cytoplasm with abundant mitochondria, RER and no vacuoles. Both types were rich of glycogen granules. The goblet cells in neonatal yak lung had the following characteristic features: dentate nucleus in dense cytoplasm, with stacks of RER and numerous dense membrane-bounded mucous droplets, which were round or oval, often with an electron-lucent core. The droplets were not confluent. Glycogen granules were numerous, and Golgi complex was occasionally present. Clara cells were dome-shaped and usually protruded into the airway lumen. Large amounts of SER and many secretory droplets were found within the cytoplasm. Several typical ,clefts' were also found in the cytoplasm. [source]