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Article
Publication date: 1 December 1999

Paolo Bellavista, Antonio Corradi, Fabio Tarantino and Cesare Stefanelli

The increasing dimension and heterogeneity of global Web systems make their management with tools based on the client/server model more difficult. The mobile agent technology…

496

Abstract

The increasing dimension and heterogeneity of global Web systems make their management with tools based on the client/server model more difficult. The mobile agent technology overcomes the limits of traditional approaches and proposes solutions that are suitable for the management of distributed and heterogeneous Internet‐based systems. The paper describes the MAMAS environment and its implementation with a mobile agent technology. MAMAS has the goals of monitoring the whole system, introducing dynamic corrective actions and modifying system policies at run‐time. MAMAS achieves these objectives by answering the guidelines of both security and compliance to standards. The choice of Java as the implementation language has made it possible to achieve portability, to exploit the language security features, and to provide Web accessibility. The MAMAS compliance with CORBA ensures interoperability with legacy management platforms.

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Internet Research, vol. 9 no. 5
Type: Research Article
ISSN: 1066-2243

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Article
Publication date: 1 March 2001

Antonio Corradi, Rebecca Montanari and Cesare Stefanelli

The Internet is an open and global programming environment where applications and services mostly follow the traditional client/server model. The use of new programming paradigms…

2109

Abstract

The Internet is an open and global programming environment where applications and services mostly follow the traditional client/server model. The use of new programming paradigms based on mobile entities, such as mobile agents (MA), can accelerate the process of diffusion of new applications and services in the areas of e‐commerce, network and systems management, and mobile computing. However, the lack of security is one of the main obstacles to a wide diffusion of MA. On the one hand, mobility increases the potential of security breaches because of the injection of possibly malicious MAs; on the other hand, it introduces the new issue of protecting MAs against integrity and secrecy attacks from their execution environments. This paper discusses the security issues introduced by the MA technology and proposes a security architecture composed of a wide set of services and components, which adequately fulfil the requirements of several application areas. The implementation of the security framework in the secure and open MA system has provided the support for the development of a secure electronic marketplace prototype that demonstrates the effectiveness of adopting the MA technology in the Internet environment.

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Internet Research, vol. 11 no. 1
Type: Research Article
ISSN: 1066-2243

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Article
Publication date: 1 December 1999

David G. Schwartz

278

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Internet Research, vol. 9 no. 5
Type: Research Article
ISSN: 1066-2243

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Book part
Publication date: 29 February 2008

Nii Ayi Armah and Norman R. Swanson

In this chapter we discuss model selection and predictive accuracy tests in the context of parameter and model uncertainty under recursive and rolling estimation schemes. We begin…

Abstract

In this chapter we discuss model selection and predictive accuracy tests in the context of parameter and model uncertainty under recursive and rolling estimation schemes. We begin by summarizing some recent theoretical findings, with particular emphasis on the construction of valid bootstrap procedures for calculating the impact of parameter estimation error. We then discuss the Corradi and Swanson (2002) (CS) test of (non)linear out-of-sample Granger causality. Thereafter, we carry out a series of Monte Carlo experiments examining the properties of the CS and a variety of other related predictive accuracy and model selection type tests. Finally, we present the results of an empirical investigation of the marginal predictive content of money for income, in the spirit of Stock and Watson (1989), Swanson (1998) and Amato and Swanson (2001).

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Forecasting in the Presence of Structural Breaks and Model Uncertainty
Type: Book
ISBN: 978-1-84950-540-6

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Expert briefing
Publication date: 19 July 2016

Perez Corradi has previously attempted to implicate Fernandez and other allies of former President Cristina Fernandez de Kirchner in drug-related activities, and his statements…

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DOI: 10.1108/OXAN-DB212464

ISSN: 2633-304X

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Book part
Publication date: 30 August 2008

Marcia Texler Segal and Vasilikie Demos

The 13 chapters in this volume concern research and theories on 18th to 21st century gender-related issues by 19th and 21st century writers. Our volume looks backward and forward…

Abstract

The 13 chapters in this volume concern research and theories on 18th to 21st century gender-related issues by 19th and 21st century writers. Our volume looks backward and forward, advancing both research on gender and research on the history of sociology. Gender research is, like many of the subjects discussed in these chapters, post-discipline and post-modern. Our authors include students, mid-career, senior, and emeriti faculty members. While most identify their fields as sociology or sociology and anthropology, one is also a practicing attorney and another is a professor of English. In addition to the United States, authors come from Brazil, Finland, Israel, Italy, and Poland and their subject matter brings additional countries to the mix. They cover a broad spectrum of subjects and events from the Salem Witch Trials and the Crimean War to contemporary national and international politics and policies in such diverse settings as the European Union, Brazilian race tracks, and Israeli Rabbinical Courts. Yet they overlap and expand on each other in many, often surprising, ways.

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Advancing Gender Research from the Nineteenth to the Twenty-First Centuries
Type: Book
ISBN: 978-1-84855-027-8

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Article
Publication date: 1 September 2016

Qiquan Chen, Ji Weng, Stephen Corcoran and Chenhao Fan

The performance of the building envelope of a large-scale public building significantly influences the energy consumption of such a building. This study aims to determine the best…

29

Abstract

The performance of the building envelope of a large-scale public building significantly influences the energy consumption of such a building. This study aims to determine the best strategy for the envelope by examining the engineering design of the building in Nanchang University. The building shape coefficient, sun-shading strategies, window–wall ratio, roof, and walls were studied through a method involving multilayer feed-forward neural network model simulations. Results show that the optimum shape coefficient value is 0.32. The combination of interior and exterior blinds and electrochromic glass is the ideal option to reduce the increase in the energy consumption of the architecture caused by solar radiation. Maintaining the window–wall ratio at 0.4 is ideal. A green roof exerts a minimal effect on building energy consumption decrease (only 0.4%). Applying the strategy of vertical greening to the external wall can reduce cooling energy consumption by as much as 5.4%. Adopting the best envelope strategy combination can further decrease energy consumption by 20.8%. This strategy is also applicable to the middle and lower reaches of Yangtze River in China, which flow through Nanchang and have a climate similar to that of the said area. Future research should be directed toward applying artificial neural networks to quantitatively evaluate the effects of a design strategy and produce the best design strategy combination.

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Open House International, vol. 41 no. 3
Type: Research Article
ISSN: 0168-2601

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Book part
Publication date: 30 August 2008

Laura Corradi

Is medically assisted fertilization (with the use of in vitro technology) about “reproductive rights” or about white women's privileges? What is “choice” for white and rich women…

Abstract

Is medically assisted fertilization (with the use of in vitro technology) about “reproductive rights” or about white women's privileges? What is “choice” for white and rich women seems to become a further commodification of the body for women of color and economically disadvantaged women.

Several feminists define reproductive rights by demanding social justice and a type of support for the mothers that does not include expensive technologies, which have a problematic outcome, that of generating a divide between women in the north and women in the south of the world. Some authors also talk about a “division of labor” in reproduction.

The first part of my chapter offers an outline of the historical feminist debate over gender and technology, looking at different positions regarding biotechnologies, and reproductive technologies in a specific way. The second part presents an investigation around the (often racialized) international market of eggs and surrogate mothers in the United States, India and Eastern Europe.

The third part consists of an analysis of few recent studies about the health of women who undergo ovarian hyper-stimulation in order to give eggs as “donation” (under payment); women who offer themselves as surrogate mothers and the children who have been conceived with in vitro fertilization, specifically with heterologue forms (egg donation or surrogate motherhood).

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Advancing Gender Research from the Nineteenth to the Twenty-First Centuries
Type: Book
ISBN: 978-1-84855-027-8

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Article
Publication date: 1 July 1992

John W. Barchfield

In contrast to liberal, orthodox Marxist and structuralinterpretations which attribute government policy in capitalist societyto exogenous forces, the state regularly possesses a…

110

Abstract

In contrast to liberal, orthodox Marxist and structural interpretations which attribute government policy in capitalist society to exogenous forces, the state regularly possesses a significant area of autonomy within which decisions are effectively determined by the political‐administrative elite (PAE). The majority of the economic projects emanating therefrom can be categorized as either aggrandizing populist or economistic. Postulates the choice of orientation depends upon PAE interests. Concludes that a purely aggrandizing project can be expected only in an environment of decisive underdevelopment while a populist one is almost inevitably a temporary response to conjunctural factors; most common, both in the advanced capitalist countries and the majority of Third World countries is a strong predisposition to an economistic project.

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International Journal of Social Economics, vol. 19 no. 7/8/9
Type: Research Article
ISSN: 0306-8293

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Book part
Publication date: 12 December 2024

Louise Wattis

Free Access. Free Access

Abstract

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Gender, True Crime and Criminology
Type: Book
ISBN: 978-1-80455-361-9

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