70,726 research outputs found
Portraits, Power, and Patronage in the Late Roman Republic
Recent work in ancient art history has sought to move beyond formalist interpretations of works of art to a concern to understand ancient images in terms of a broader cultural, political, and historical context. In the study of late Republican portraiture, traditional explanations of the origins of verism in terms of antecedent influences — Hellenistic realism, Egyptian realism, ancestral imagines — have been replaced by a concern to interpret portraits as signs functioning in a determinate historical and political context which serves to explain their particular visual patterning. In this paper I argue that, whilst these new perspectives have considerably enhanced our understanding of the forms and meanings of late Republican portraits, they are still flawed by a failure to establish a clear conception of the social functions of art. I develop an account of portraits which shifts the interpretative emphasis from art as object to art as a medium of socio-cultural action. Such a shift in analytic perspective places art firmly at the centre of our understanding of ancient societies, by snowing that art is not merely a social product or a symbol of power relationships, but also serves to construct relationships of power and solidarity in a way in which other cultural forms cannot, and thereby transforms those relationships with determinate consequence
Bioactive composites for bone tissue engineering
One of the major challenges of bone tissue engineering is the production of a suitable scaffold material. In this review the current composite materials options available are considered covering both the methods of both production and assessing the scaffolds. A range of production routes have been investigated ranging from the use of porogens to produce the porosity through to controlled deposition methods. The testing regimes have included mechanical testing of the materials produced through to in vivo testing of the scaffolds. While the ideal scaffold material has not yet been produced, progress is being made
The Perils of Government Investing
The current Social Security system is unsustainable. As President Clinton has pointed out, the only alternative to tax increases or benefit cuts is to increase the rate of return to investment of Social Security funds. That means either allowing individuals to invest their own Social Security taxes or allowing the government to invest them. Supporters of government investing claim that it would allow the government to reap the benefits of the higher returns available in private capital markets, incur lower administrative costs than individual accounts, and allow the government to spread the risk of poor investment performance. On the surface, that approach may have some appeal; in reality it is fraught with peril. It could potentially make the federal government the largest shareholder in American corporations, raising the possibility of government control of American business. In addition, there are serious questions about what types of investment the government would make. Political considerations and "social investing" are likely to influence the government's investment decisions, allowing the government to manipulate economic markets
Massachusetts Miracle or Massachusetts Miserable: What the Failure of the "Massachusetts Model"Tells Us about Health Care Reform
When Massachusetts passed its pioneering health care reforms in 2006, critics warned that they would result in a slow but steady spiral downward toward a government-run health care system. Three years later, those predictions appear to be coming true: Although the state has reduced the number of residents without health insurance, 200,000 people remain uninsured. Moreover, the increase in the number of insured is primarily due to the state's generous subsidies, not the celebrated individual mandate. Health care costs continue to rise much faster than the national average. Since 2006, total state health care spending has increased by 28 percent. Insurance premiums have increased by 8-10 percent per year, nearly double the national average. New regulations and bureaucracy are limiting consumer choice and adding to health care costs. Program costs have skyrocketed. Despite tax increases, the program faces huge deficits. The state is considering caps on insurance premiums, cuts in reimbursements to providers, and even the possibility of a "global budget" on health care spending -- with its attendant rationing. A shortage of providers, combined with increased demand, is increasing waiting times to see a physician. With the "Massachusetts model" frequently cited as a blueprint for health care reform, it is important to recognize that giving the government greater control over our health care system will have grave consequences for taxpayers, providers, and health care consumers. That is the lesson of the Massachusetts model
Exchange Market Pressure and Monetary Policy: Asia and Latin America in the 1990s
Exchange market pressure (EMP), the sum of exchange rate depreciation and reserve outflows (scaled by base money), summarizes the flow excess supply of money in a managed exchange rate regime. This paper examines Brazil, Chile, Mexico, Indonesia, Korea, and Thailand, and finds that monetary policy affects EMP as generally expected: contractionary monetary policy helps to reduce EMP. The monetary policy stance is best measured by domestic credit growth (since interest rates contain both policy- and market-determined elements). In response to higher EMP, monetary authorities boosted domestic credit growth both in Mexico (confirming previous research) and in the Asian countries. Copyright 2001, International Monetary Fund
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