1,004 research outputs found
Eyes: identity and commemoration in British 18th and 19th century sculpture
While staring right at us, the varied representations of eyes in sculpture have largely gone unrecognised. Their consideration is essential, however, for the contemporary viewer's perception of, and identification with, the political and mythology subjects of eighteenth and nineteenth century statuary. A historical overview of the depiction of eyes reveals contradictions in neo-classical sculptural practices: a move from the emulation of the antique, with coloured eyes, to the presentation of uncarved marble eyeballs. This is highly significant for the individualisation of a statue is most achieved through the expression through the eyes both in facial appearance and gaze
Imperio, soberanía y Justicia en el pensamiento internacionalista de Francisco de Vitoria: Una re-interretación de De Indis (1532)
This article attempts to offer an alternative interpretation of Francisco de Vitoria's international thought. Much of the literature on his De Indis (1532) characterizes his view of international order as one that either opposed of justified Spanish imperialism in the New World. As against such conventional interpretations, I argue that this text is not fundamentally about the condemnation or justification of empire but, more importantly, a broad view of order that limits the exercise of state power and the recourse to war. Furthermore, it constructs a clear notion of sovereignty and international relations applicable to political communities based on an iusnaturalistic conceptualization of law and politics in the Spanish Renaissance.Este artículo ofrece una interpretación alternativa del pensamiento internacionalista de Francisco de Vitoria. Un segmento importante de la literatura en torno a De Indis (1532) caracteriza su visión del orden internacional como aquel que pudo ya sea oponerse o bien justificar el imperialismo español en el Nuevo Mundo. A diferencia de tales interpretaciones, se argumenta que dicho tracto no constituye, en lo fundamental, una condena, así como tampoco una justificación, del impulso imperial, sino una amplia visión del orden internacional que limita la conducta del poder estatal y el recurso a la guerra. Además, Vitoria ofrece una clara noción de soberanía y de las relaciones internacionales entre comunidades políticas fundamentada en una conceptualización iusnaturalista del derecho y de la política durante el renacimiento español
Assessment of liver fibrosis and associated risk factors in HIV-infected individuals using transient elastography and serum biomarkers
Background: Liver fibrosis in human immunodeficiency virus (HIV)-infected individuals is mostly attributable to co-infection with hepatitis B or C. The impact of other risk factors, including prolonged exposure to combined antiretroviral therapy (cART) is poorly understood. Our aim was to determine the prevalence of liver fibrosis and associated risk factors in HIV-infected individuals based on non-invasive fibrosis assessment using transient elastography (TE) and serum biomarkers (Fibrotest [FT]).
Methods: In 202 consecutive HIV-infected individuals (159 men; mean age 47 ± 9 years; 35 with hepatitis-C-virus [HCV] co-infection), TE and FT were performed. Repeat TE examinations were conducted 1 and 2 years after study inclusion.
Results: Significant liver fibrosis was present in 16% and 29% of patients, respectively, when assessed by TE (≥ 7.1 kPa) and FT (> 0.48). A combination of TE and FT predicted significant fibrosis in 8% of all patients (31% in HIV/HCV co-infected and 3% in HIV mono-infected individuals). Chronic ALT, AST and γ-GT elevation was present in 29%, 20% and 51% of all cART-exposed patients and in 19%, 8% and 45.5% of HIV mono-infected individuals. Overall, factors independently associated with significant fibrosis as assessed by TE (OR, 95% CI) were co-infection with HCV (7.29, 1.95-27.34), chronic AST (6.58, 1.30-33.25) and γ-GT (5.17, 1.56-17.08) elevation and time on dideoxynucleoside therapy (1.01, 1.00-1.02). In 68 HIV mono-infected individuals who had repeat TE examinations, TE values did not differ significantly during a median follow-up time of 24 months (median intra-patient changes at last TE examination relative to baseline: -0.2 kPa, p = 0.20).
Conclusions: Chronic elevation of liver enzymes was observed in up to 45.5% of HIV mono-infected patients on cART. However, only a small subset had significant fibrosis as predicted by TE and FT. There was no evidence for fibrosis progression during follow-up TE examinations
The Virtual Museums of Caen : a case study on modes of representation of digital historical content
In the early 19th Century much of the Strath of Kildonan was cleared of its people who were replaced by sheep farming. This pattern was repeated across the Scottish Highlands. In 2013 Timespan, Helmsdale Heritage and Arts Centre, hosted a program of activities to mark the 200th anniversary of the Clearances. The centrepiece of these activities was a community excavation of the Caen township in the Strath of Kildonan. Based upon the evidence of that excavation a digital model of the township was created using the Virtual Time Travel Platform. The Virtual World of Caen can be explored as part of an installation in Timespans storytelling room. Visitors can experience what life would have been like in the Strath of Kildonan in 1813. This paper reports how the model has been deployed in different settings and on various digital platforms. These include showcasing the model at the Helmsdale Highland Games where visitors could explore the township of the past on stereo head mounted displays, or a Virtual Museum website that welcomes visitors from around the globe, as well as using Google Cardboard to allow visitors to explore Caen today, the virtual reconstruction of Caen simultaneously whilst on the site.Postprin
The dichotomy of memantine treatment for ischemic stroke: dose-dependent protective and detrimental effects.
Excitotoxicity is a major contributor to cell death during the acute phase of ischemic stroke but aggressive pharmacological targeting of excitotoxicity has failed clinically. Here we investigated whether pretreatment with low doses of memantine, within the range currently used and well tolerated for the treatment of Alzheimer's disease, produce a protective effect in stroke. A coculture preparation exposed to modeled ischemia showed cell death associated with rapid glutamate rises and cytotoxic Ca(2+) influx. Cell death was significantly enhanced in the presence of high memantine concentrations. However, low memantine concentrations significantly protected neurons and glia via excitotoxic cascade interruption. Mice were systemically administered a range of memantine doses (0.02, 0.2, 2, 10, and 20 mg/kg/day) starting 24 hours before 60 minutes reversible focal cerebral ischemia and continuing for a 48-hour recovery period. Low dose (0.2 mg/kg/day) memantine treatment significantly reduced lesion volume (by 30% to 50%) and improved behavioral outcomes in stroke lesions that had been separated into either small/striatal or large/striatocortical infarcts. However, higher doses of memantine (20 mg/kg/day) significantly increased injury. These results show that clinically established low doses of memantine should be considered for patients 'at risk' of stroke, while higher doses are contraindicated
Exploring heritage through time and space : Supporting community reflection on the highland clearances
On the two hundredth anniversary of the Kildonan clearances, when people were forcibly removed from their homes, the Timespan Heritage centre has created a program of community centred work aimed at challenging pre conceptions and encouraging reflection on this important historical process. This paper explores the innovative ways in which virtual world technology has facilitated community engagement, enhanced visualisation and encouraged reflection as part of this program. An installation where users navigate through a reconstruction of pre clearance Caen township is controlled through natural gestures and presented on a 300 inch six megapixel screen. This environment allows users to experience the past in new ways. The platform has value as an effective way for an educator, artist or hobbyist to create large scale virtual environments using off the shelf hardware and open source software. The result is an exhibit that also serves as a platform for experimentation into innovative ways of community co-creation and co-curation.Postprin
Baseline MELD score predicts hepatic decompensation during antiviral therapy in patients with chronic hepatitis C and advanced cirrhosis
Background and Aims: In patients with advanced liver cirrhosis due to chronic hepatitis C virus (HCV) infection antiviral therapy with peginterferon and ribavirin is feasible in selected cases only due to potentially life-threatening side effects. However, predictive factors associated with hepatic decompensation during antiviral therapy are poorly defined.
Methods: In a retrospective cohort study, 68 patients with HCV-associated liver cirrhosis (mean MELD score 9.18±2.72) were treated with peginterferon and ribavirin. Clinical events indicating hepatic decompensation (onset of ascites, hepatic encephalopathy, upper gastrointestinal bleeding, hospitalization) as well as laboratory data were recorded at baseline and during a follow up period of 72 weeks after initiation of antiviral therapy. To monitor long term sequelae of end stage liver disease an extended follow up for HCC development, transplantation and death was applied (240weeks, ±SD 136weeks).
Results: Eighteen patients (26.5%) achieved a sustained virologic response. During the observational period a hepatic decompensation was observed in 36.8%. Patients with hepatic decompensation had higher MELD scores (10.84 vs. 8.23, p14, respectively. Baseline MELD score was significantly associated with the risk for transplantation/death (p<0.001).
Conclusions: Our data suggest that the baseline MELD score predicts the risk of hepatic decompensation during antiviral therapy and thus contributes to decision making when antiviral therapy is discussed in HCV patients with advanced liver cirrhosis
High prevalence of anti-HCV antibodies in two metropolitan emergency departments in Germany : a prospective screening analysis of 28,809 patients
Background and Aims: The prevalence of hepatitis C virus (HCV) antibodies in Germany has been estimated to be in the range of 0.4–0.63%. Screening for HCV is recommended in patients with elevated ALT levels or significant risk factors for HCV transmission only. However, 15–30% of patients report no risk factors and ALT levels can be normal in up to 20–30% of patients with chronic HCV infection. The aim of this study was to assess the HCV seroprevalence in patients visiting two tertiary care emergency departments in Berlin and Frankfurt, respectively.
Methods: Between May 2008 and March 2010, a total of 28,809 consecutive patients were screened for the presence of anti-HCV antibodies. Anti-HCV positive sera were subsequently tested for HCV-RNA.
Results: The overall HCV seroprevalence was 2.6% (95% CI: 2.4–2.8; 2.4% in Berlin and 3.5% in Frankfurt). HCV-RNA was detectable in 68% of anti-HCV positive cases. Thus, the prevalence of chronic HCV infection in the overall study population was 1.6% (95% CI 1.5–1.8). The most commonly reported risk factor was former/current injection drug use (IDU; 31.2%) and those with IDU as the main risk factor were significantly younger than patients without IDU (p<0.001) and the male-to-female ratio was 72% (121 vs. 46 patients; p<0.001). Finally, 18.8% of contacted HCV-RNA positive patients had not been diagnosed previously.
Conclusions: The HCV seroprevalence was more than four times higher compared to current estimates and almost one fifth of contacted HCV-RNA positive patients had not been diagnosed previously
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