57 research outputs found
The Antiquarian and the Myth ofAntiquity: The Origins of Rome in Renaissance Thought, by Philip Jacks, Cambridge University Press, Cambridge
Attempts to understand the history of archaeology must inevitably
face the issue of origins; while historical consciousness is common to human society,
studying the past through the detailed excavation, analysis, and acquisition of its
material remains has until recent generations been largely the domain of European
society and its descendants. There is nothing inherently logical about this pursuit; the
evolution of archaeology as a way of knowing the past has specifIc historical roots and
antecedents in western society and needs to be understood in light of these
circumstances. The Renaissance is arguably the cultural hearth in which archaeology took
shape. Scholars of the age who seem to anticipate our own predilections. such as Cyriaco
D'Ancona, are usually to be found in introductory chapters of archaeological textbooks
immediately following Nabonidus of Babylon. Jacks takes a more contextual approach,
discussing the relationships between scholarship and society in Italy from the late
Medieval period through the 16th century. This is not a general history of antiquarian
thought during the Renaissance, nor is it a study of the work of a specific individual.
The author takes as his focus the changing perceptions of antiquity held by scholars of
the age, with particular emphasis on the construction and manipulation of images of
ancient Rome
Ancient Marbles to American Shores: Classical Archaeology in the United States. by Stephen Dyson, University of Pennsylvania Press, Philadelphia, 1998.
One of the aspects of 20th century archaeology in America that
would undoubtedly perplex our 19th century predecessors is the extreme intellectual
distance between Americanist, anthropological archaeologists and our counterparts who
work in the classical world. We belong to different professional societies, publish in
different journals. occupy different academic departments, and draw our inspiration from
different intellectual sources. Crossovers exist, but are comparatively rare, and are
viewed with suspicion by all. One of my professors once announced to a seminar that if
classical archaeologists didn't start doing something interesting, we would "have to
take over.
Effects of neo-adjuvant chemotherapy for oesophago-gastric cancer on neuro-muscular gastric function
Delayed gastric emptying symptoms are often reported after chemotherapy. This study aims to characterise the effects of chemotherapy on gastric neuro-muscular function. Patients undergoing elective surgery for oesophago-gastric cancer were recruited. Acetylcholinesterase, nNOS, ghrelin receptor and motilin expressions were studied in gastric sections from patients receiving no chemotherapy (n = 3) or oesophageal (n = 2) or gastric (n = 2) chemotherapy. A scoring system quantified staining intensity (0–3; no staining to strong). Stomach sections were separately suspended in tissue baths for electrical field stimulation (EFS) and exposure to erythromycin or carbachol; three patients had no chemotherapy; four completed cisplatin-based chemotherapy within 6 weeks prior to surgery. AChE expression was markedly decreased after chemotherapy (scores 2.3 ± 0.7, 0.5 ± 0.2 and 0 ± 0 in non-chemotherapy, oesophageal- and gastric-chemotherapy groups (p < 0.03 each) respectively. Ghrelin receptor and motilin expression tended to increase (ghrelin: 0.7 ± 0.4 vs 2.0 ± 0.4 and 1.2 ± 0.2 respectively; p = 0.04 and p = 0.2; motilin: 0.7 ± 0.5 vs 2.2 ± 0.5 and 2.0 ± 0.7; p = 0.06 and p = 0.16). Maximal contraction to carbachol was 3.7 ± 0.7 g and 1.9 ± 0.8 g (longitudinal muscle) and 3.4 ± 0.4 g and 1.6 ± 0.6 (circular) in non-chemotherapy and chemotherapy tissues respectively (p < 0.05 each). There were loss of AChE and reduction in contractility to carbachol. The tendency for ghrelin receptors to increase suggests an attempt to upregulate compensating systems. Our study offers a mechanism by which chemotherapy markedly alters neuro-muscular gastric function
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Updated Generation IV Reactors Integrated Materials Technology Program Plan, Revision 2
The Department of Energy's (DOE's) Generation IV Nuclear Energy Systems Program will address the research and development (R&D) necessary to support next-generation nuclear energy systems. Such R&D will be guided by the technology roadmap developed for the Generation IV International Forum (GIF) over two years with the participation of over 100 experts from the GIF countries. The roadmap evaluated over 100 future systems proposed by researchers around the world. The scope of the R&D described in the roadmap covers the six most promising Generation IV systems. The effort ended in December 2002 with the issue of the final Generation IV Technology Roadmap [1.1]. The six most promising systems identified for next generation nuclear energy are described within the roadmap. Two employ a thermal neutron spectrum with coolants and temperatures that enable hydrogen or electricity production with high efficiency (the Supercritical Water Reactor - SCWR and the Very High Temperature Reactor - VHTR). Three employ a fast neutron spectrum to enable more effective management of actinides through recycling of most components in the discharged fuel (the Gas-cooled Fast Reactor - GFR, the Lead-cooled Fast Reactor - LFR, and the Sodium-cooled Fast Reactor - SFR). The Molten Salt Reactor (MSR) employs a circulating liquid fuel mixture that offers considerable flexibility for recycling actinides, and may provide an alternative to accelerator-driven systems. A few major technologies have been recognized by DOE as necessary to enable the deployment of the next generation of advanced nuclear reactors, including the development and qualification of the structural materials needed to ensure their safe and reliable operation. Accordingly, DOE has identified materials as one of the focus areas for Gen IV technology development
Updated Generation IV Reactors Integrated Materials Technology Program Plan, Revision 2
The Department of Energy's (DOE's) Generation IV Nuclear Energy Systems Program will address the research and development (R&D) necessary to support next-generation nuclear energy systems. Such R&D will be guided by the technology roadmap developed for the Generation IV International Forum (GIF) over two years with the participation of over 100 experts from the GIF countries. The roadmap evaluated over 100 future systems proposed by researchers around the world. The scope of the R&D described in the roadmap covers the six most promising Generation IV systems. The effort ended in December 2002 with the issue of the final Generation IV Technology Roadmap [1.1]. The six most promising systems identified for next generation nuclear energy are described within the roadmap. Two employ a thermal neutron spectrum with coolants and temperatures that enable hydrogen or electricity production with high efficiency (the Supercritical Water Reactor - SCWR and the Very High Temperature Reactor - VHTR). Three employ a fast neutron spectrum to enable more effective management of actinides through recycling of most components in the discharged fuel (the Gas-cooled Fast Reactor - GFR, the Lead-cooled Fast Reactor - LFR, and the Sodium-cooled Fast Reactor - SFR). The Molten Salt Reactor (MSR) employs a circulating liquid fuel mixture that offers considerable flexibility for recycling actinides, and may provide an alternative to accelerator-driven systems. A few major technologies have been recognized by DOE as necessary to enable the deployment of the next generation of advanced nuclear reactors, including the development and qualification of the structural materials needed to ensure their safe and reliable operation. Accordingly, DOE has identified materials as one of the focus areas for Gen IV technology development
Disruption of Rolandic Gamma-Band Functional Connectivity by Seizures is Associated with Motor Impairments in Children with Epilepsy
Although children with epilepsy exhibit numerous neurological and cognitive deficits, the mechanisms underlying these impairments remain unclear. Synchronization of oscillatory neural activity in the gamma frequency range (>30 Hz) is purported to be a mechanism mediating functional integration within neuronal networks supporting cognition, perception and action. Here, we tested the hypothesis that seizure-induced alterations in gamma synchronization are associated with functional deficits. By calculating synchrony among electrodes and performing graph theoretical analysis, we assessed functional connectivity and local network structure of the hand motor area of children with focal epilepsy from intracranial electroencephalographic recordings. A local decrease in inter-electrode phase synchrony in the gamma bands during ictal periods, relative to interictal periods, within the motor cortex was strongly associated with clinical motor weakness. Gamma-band ictal desychronization was a stronger predictor of deficits than the presence of the seizure-onset zone or lesion within the motor cortex. There was a positive correlation between the magnitude of ictal desychronization and impairment of motor dexterity in the contralateral, but not ipsilateral hand. There was no association between ictal desynchronization within the hand motor area and non-motor deficits. This study uniquely demonstrates that seizure-induced disturbances in cortical functional connectivity are associated with network-specific neurological deficits
The use of digital pathology and image analysis in clinical trials
Digital pathology and image analysis potentially provide greater accuracy, reproducibility and standardisation of pathology‐based trial entry criteria and endpoints, alongside extracting new insights from both existing and novel features. Image analysis has great potential to identify, extract and quantify features in greater detail in comparison to pathologist assessment, which may produce improved prediction models or perform tasks beyond manual capability. In this article, we provide an overview of the utility of such technologies in clinical trials and provide a discussion of the potential applications, current challenges, limitations and remaining unanswered questions that require addressing prior to routine adoption in such studies. We reiterate the value of central review of pathology in clinical trials, and discuss inherent logistical, cost and performance advantages of using a digital approach. The current and emerging regulatory landscape is outlined. The role of digital platforms and remote learning to improve the training and performance of clinical trial pathologists is discussed. The impact of image analysis on quantitative tissue morphometrics in key areas such as standardisation of immunohistochemical stain interpretation, assessment of tumour cellularity prior to molecular analytical applications and the assessment of novel histological features is described. The standardisation of digital image production, establishment of criteria for digital pathology use in pre‐clinical and clinical studies, establishment of performance criteria for image analysis algorithms and liaison with regulatory bodies to facilitate incorporation of image analysis applications into clinical practice are key issues to be addressed to improve digital pathology incorporation into clinical trials
Archaelogy and Cultural Nationalism In the American Southwest, 1895-1920
Traditional histories of archaeology have been described by a
recent commentator as resembling travel journals, providing "an account of the slow
journey out of the darkness of subjectivity and speculation towards objectivity,
rationality, and science" (Murray 1989:56). In recent years new approaches to this
subject have taken a more critical look at the tangled social and intellectual currents
surrounding the development of archaeology. One of the least contestable points to arise
from the current theoretical debates within the discipline is that of the fundamental
relationship between the observer/scientist and the production of knowledge (for
example, Leone 1986). This topic is central to modern sociocultural anthropology
(Stocking 1983) and is particularly pertinent to the history the field
Elizabeth Deuel\u27s Letter: Confronting Sexual Politics in Anthropology
https://digitalrepository.unm.edu/cswr_ppl/1013/thumbnail.jp
Ancestral Landscapes of the Pueblo World
The eastern Pueblo heartland, located in the northern Rio Grande country of New Mexico, has fascinated archaeologists since the 1870s. In Ancestral Landscapes of the Pueblo World, James Snead uses an exciting new approach— landscape archaeology—to understand ancestral Pueblo communities and the way the people consciously or unconsciously shaped the land around them. Snead provides detailed insight into ancestral Puebloan cultures and societies using an approach he calls “contextual experience,” employing deep mapping and community-scale analysis. This strategy goes far beyond the standard archaeological approaches, using historical ethnography and contemporary Puebloan perspectives to better understand how past and present Pueblo worldviews and meanings are imbedded in the land. Snead focuses on five communities in the Pueblo heartland—Burnt Corn, T’obimpaenge, Tsikwaiye, Los Aguajes, and Tsankawi—using the results of intensive archaeological surveys to discuss the changes that occurred in these communities between AD 1250 and 1500. He examines the history of each area, comparing and contrasting them via the themes of “provision,” “identity,” and “movement,” before turning to questions regarding social, political, and economic organization. This revolutionary study thus makes an important contribution to landscape archaeology and explains how the Precolumbian Pueblo landscape was formed
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