Home About us Contact
|
Home About us Contact | ||
|
|
||
Diverse Regions (diverse + regions)
Selected AbstractsDecision Sciences Research in China: A Critical Review and Research Agenda,Foundations and Overview,DECISION SCIENCES, Issue 4 2006Xiande Zhao ABSTRACT This article focuses on decision sciences research in China, providing an overview of current research and developing a foundation for future China-based research. China provides a unique research opportunity for decision sciences researchers, owing to its recent history, rapid economic development, and strong national culture. We examine recent economic reforms and their impact on the development of research questions in the decision sciences, as well as discuss characteristics of the diverse regions in China and their potential as sites for various types of research. We provide a brief overview of recent China-based research on decision sciences issues relating to national culture, supply chain management, quality management, production planning and control, operations strategy, and new product development and discuss some of the unique methodological challenges inherent in China-based research. We conclude by looking forward to emerging research opportunities in China. [source] Ulcerative Dermatitis, Thrombocytopenia, and Neutropenia in Neonatal FoalsJOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 2 2005G.A. Perkins This report describes transient ulcerative dermatitis, severe thrombocytopenia, and mild neutropenia in 6 foals from 4 mares from geographically diverse regions of the United States. The foals presented at <4 days of age with oral and lingual ulcers, and crusting and erythema around the eyes, muzzle, and perineal, inguinal, axillary, trunk, and neck regions. There was a severe thrombocytopenia (0,30,000 platelets/,L), leukopenia (1,900-3,200 white blood cells/,L), and mild neutropenia (500-1,800 neutrophils/,L). Four of the 6 foals had petechiae and ecchymotic hemorrhages and 3 had bleeding tendencies. Results of examination of a bone marrow biopsy from 1 foal were normal and results of a platelet surface immunoglobulin test in another were negative. Histopathology of the skin in all foals showed subepidermal clefting with subjacent vascular dilation, dermal hemorrhage, and superficial papillary necrosis. The foals were treated supportively with broad-spectrum antibiotics (5/6), corticosteroids (3/6), gastric ulcer prophylaxis (6/6), whole-blood transfusion (4/6), and platelet-rich plasma (1/6). The skin lesions and thrombocytopenia (>50,000 platelets/,L) improved in 2 weeks (4/6). Two foals had a decline in their platelet counts when the steroids were decreased and needed protracted treatment. All foals survived and were healthy as yearlings. Two mares that had 2 affected foals each, upon subsequent pregnancies to different stallions, had healthy foals when an alternate source of colostrum was given. The findings in the cases in this report suggest a possible relationship between colostral antibodies or some other factor in the colostrum and the thrombocytopenia and skin lesions, although further investigation is warranted to confirm or refute this hypothesis. [source] Making Order Out of Trouble: Jurisdictional Politics in the Spanish Colonial BorderlandsLAW & SOCIAL INQUIRY, Issue 2 2001Lauren Benton Jurisdictional fluidity was a central feature of early modem Iberian law, and jurisdictional tensions were exacerbated by overseas conquest and colonization. Contests over the legal status of conquered peoples featured both jurisdictional jockeying among colonial factions and widespread preoccupation with the symbols and rituals marking cultural and legal difference. This article examines the dynamics of jurisdictional politics in seventeenth-century New Mexico, where church and state officials carried on a bitter feud over legal authority during most of the century. Rather than viewing this contest as either transparently political or a mask for deeper processes defining hegemony, the article argues that seemingly dry legal distinctions were the focus of passionate and persistent struggle precisely because they merged institutional and cultural concerns of missionaries, settler elites, and Indians. The analysis leads to broader, more speculative claims about the role of jurisdictional fluidity in creating an "orderly disorder" that spanned diverse regions within Spanish America and, more broadly, across colonial regimes in the early modern world. [source] Genetic structure of the widespread and common Mediterranean bryophyte Pleurochaete squarrosa (Brid.) Lindb. (Pottiaceae) , evidence from nuclear and plastidic DNA sequence variation and allozymesMOLECULAR ECOLOGY, Issue 4 2007MICHAEL GRUNDMANN Abstract The Mediterranean Basin as one the world's most biologically diverse regions provides an interesting area for the study of plant evolution and spatial structure in plant populations. The dioecious moss Pleurochaete squarrosa is a widespread and common bryophyte in the Mediterranean Basin. Thirty populations were sampled for a study on molecular diversity and genetic structure, covering most major islands and mainland populations from Europe and Africa. A significant decline in nuclear and chloroplast sequence and allozyme variation within populations from west to east was observed. While DNA sequence data showed patterns of isolation by distance, allozyme markers did not. Instead, their considerable interpopulation genetic differentiation appeared to be unrelated to geographic distance. Similar high values for coefficients of gene diversity (GST) in all data sets provided evidence of geographic isolation and limited gene flow among populations (i) within islands, (ii) within mainland areas, and (iii) between islands and mainland. Notably, populations in continental Spain are strongly genetically isolated from all other investigated areas. Surprisingly, there was no difference in gene diversity and GST between islands and mainland areas. Thus, we conclude that large Mediterranean islands may function as ,mainland' for bryophytes. This hypothesis and its implication for conservation biology of cryptogamic plants warrant further investigation. While sexually reproducing populations were found all over the Mediterranean Basin, high levels of multilocus linkage disequilibrium provide evidence of mainly vegetative propagation even in populations where sexual reproduction was observed. [source] EXPLORING IDENTITY AND PLACE: AN ANALYSIS OF THE PROVENANCE OF PASSAGE GRAVE STONES ON GUERNSEY AND JERSEY IN THE MIDDLE NEOLITHICOXFORD JOURNAL OF ARCHAEOLOGY, Issue 1 2003DAVID BUKACH Summary. This study examines the provenance of rock types used in the construction of Middle Neolithic passage grave stones on the islands of Guernsey and Jersey, focusing on the social dimensions of stone selection. The use of stones in passage grave construction includes both local and non-local rock types, which at some sites are organized in distinctive patterns. It is argued that the choice of stones was bound by concepts of identity, and that the communities which gathered to build these monuments may have used specific rock types to represent their community and their local mythologies. The relationship between identity and stone selection is supported both by analogy and by research into the role of landmarks in the development of local landscapes and ideology. The success of megalith provenance studies on Guernsey and Jersey suggests considerable potential for future research in other geologically diverse regions. [source] Brief communication: The distribution of perikymata on Qafzeh anterior teethAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 1 2010Debbie Guatelli-Steinberg Abstract Recent studies have suggested that Neandertals and modern humans differ in the distribution of perikymata (enamel growth increments) over their permanent anterior tooth crowns. In modern humans, perikymata become increasingly more compact toward the cervix than they do in Neandertals. Previous studies have suggested that a more homogeneous distribution of perikymata, like that of Neandertals, characterizes the anterior teeth of Homo heidelbergensis and Homo erectus as well. Here, we investigated whether Qafzeh anterior teeth (N = 14) differ from those of modern southern Africans, northern Europeans, and Alaskans (N = 47,74 depending on tooth type) in the percentage of perikymata present in their cervical halves. Using the normally distributed modern human values for each tooth type, we calculated Z -scores for the 14 Qafzeh teeth. All but two of the 14 Qafzeh teeth had negative Z -scores, meaning that values equal to these would be found in the bottom 50% of the modern human samples. Seven of the 14 would be found in the lowest 5% of the modern human distribution. Qafzeh teeth therefore appear to differ from those of modern humans in the same direction that Neandertals do: with generally lower percentages of perikymata in their cervical regions. The similarity between them appears to represent the retention of a perikymata distribution pattern present in earlier members of the genus Homo, but not generally characteristic of modern humans from diverse regions of the world. Am J Phys Anthropol 2010. © 2009 Wiley-Liss, Inc. [source] | ||||||||||