Continuing Challenge (continuing + challenge)

Distribution by Scientific Domains


Selected Abstracts


Towards a multidisciplinary approach to structuring in reduced saturated fat-based systems , a review

INTERNATIONAL JOURNAL OF FOOD SCIENCE & TECHNOLOGY, Issue 4 2010
Paul Wassell
Summary Although many food products are essentially emulsions, interest in the structuring of oil-continuous emulsions (and in specific cases water-continuous emulsions) is intense, particularly to meet the continuing challenge of reducing the degree of saturates in food systems. Consequently, it is necessary to observe the effects of structurants and to examine their impacts on current food systems. This is especially the case where novel structuring materials are used to wholly or partially replace traditional structurants. A multidisciplinary approach is discussed encompassing traditional and novel mechanisms considered able to structure within low saturated fat-based systems and which in themselves could also have emulsification properties. The presence of interfacial compositions as in emulsions requires a crucial understanding of the interactions within these compositions for the creation of building blocks in oil or fat structuring. Where a co-surfactant structure may be used, together with novel structurants, for example, wax esters, phytosterols, it is necessary to understand how these may influence interfacial film thickness, strength and flexibility. Understanding how to measure mechanical visco-elastic properties of structurant interactions both in model and real time dynamic measurements will be necessary to account for diffusion, orientation and self-assembly mechanisms. This review discusses combining traditional techniques with novel structurant technology; developing and validating dynamic measurement techniques; and investigation of real systems as opposed to purely model systems. [source]


Social health insurance in developing countries: A continuing challenge

INTERNATIONAL SOCIAL SECURITY REVIEW, Issue 2 2002
Guy Carrin
This paper addresses the issue of the feasibility of "social" health insurance (SHI) in developing countries. SHI aims at protecting all population groups against financial risks due to illness. There are substantial difficulties in implementation, however, due to lack of debate and consensus about the extent of financial solidarity, problems with health service delivery, and insufficient managerial capacity. The transition to universal coverage is likely to take many years, but it can be speeded up. Adopting a "family" approach to financial protection, sustained financial support from governments and donors, and deconcentrating the development of SHI may slash several years from the time needed to achieve full universal protection against healthcare costs. [source]


Latin America and the Dollar Bloc in the Twenty-first Century: To Dollarize or Not?

LATIN AMERICAN POLITICS AND SOCIETY, Issue 4 2001
Kenneth P. Jameson
ABSTRACT The choice of exchange rate regime is a continuing challenge to Latin American policymakers, who currently face pressure to dollarize their economies. The constraints imposed by the "dollar bloc," the informal but powerful currency bloc that ties Latin America to the dominant currency, are central to that choice. Current weak economic performance has called the bloc's norms and principles into question and has made the exchange rate an open issue. Ecuador's full official dollarization is one possible strategy for countries with political stability but poor economic performance to gain access to needed dollar resources. Most of Latin America, however, will continue with variants of managed floating exchange rates, and the periodic foreign exchange crises will provide access to official dollar resources and facilitate renegotiation of the terms of outstanding debt. [source]


Anastomotic leakage , a continuing challenge

COLORECTAL DISEASE, Issue 7 2008
Peer Wille-Jørgensen
No abstract is available for this article. [source]


Approaches to tobacco control: the evidence base

EUROPEAN JOURNAL OF DENTAL EDUCATION, Issue 2004
M. Lober Aquilino
Tobacco production, distribution, and use are international issues with significant health and economic implications. This paper provides an overview of the effective approaches to tobacco control including decreasing demand for tobacco products through taxation, consumer education, research, bans on advertising and promotion, warning labels, and restrictions on public smoking. The effectiveness of reducing the supply of tobacco products through prohibition, restrictions on youth access, crop substitution, trade restrictions, and control of smuggling, will also be discussed. Decreasing smoking, particularly among young people, by preventing or delaying initiation, preventing regular use, and increasing cessation through behavioural approaches for all ages is reviewed. Cessation methods including pharmacological approaches, ,quitlines', Internet programmes, and the targeting of specific populations are discussed. Internet availability of tobacco products and sustainability of current efforts are presented as continuing challenges to tobacco control. [source]


Iris Robinson's Excitable Speech: Sexuality and Conflict Transformation in Northern Ireland

POLITICS, Issue 1 2009
Fidelma Ashe
In the summer of 2008, the Westminster MP and Member of the Northern Ireland Assembly, Iris Robinson, made homophobic statements during interviews with the media. Robinson's anti-gay remarks highlight the continuing challenges for sexual politics in Northern Ireland. However, conflict transformation literature in the region has elided issues of sexuality. This article, drawing on elements of Judith Butler's analysis of injurious speech, assesses the issues that Robinson's homophobic speech highlights in relation to sexual equality in Northern Ireland. It concludes by assessing the role of conflict transformation literature in charting sexual politics in the region. [source]