Convergence to equilibrium for intermittent symplectic maps

We investigate a class of area preserving non-uniformly hyperbolic maps of the two torus. First we establish some results on the regularity of the invariant foliations, then we use this knowledge to estimate the rate of mixing.Comment: LaTeX, 23 page

European Futures. The Politics and Practice of Research Policies in the European Union.

Over the past decades, research policies have gained an increasing importance in the overall strategy of the European Union. Early programmes date back to the late 1970s, but in recent years the promotion and funding of scientific research have become a central field of European governance within the wider policy drive towards the making of a ‘knowledge-economy’ in Europe. These developments are not only relevant to better understanding the process of European integration, but they also constitute an important chapter in the history of modern science. Today, EU framework programmes, the main instrument for research support at the European level, are arguably the biggest research funding scheme in the world. Moreover, European policies have introduced innovative practices of scientific collaboration and a new culture of research, which has contributed to key changes in the social and organisational dimension of science. This sociological work examines these issues at two interrelated levels of analysis. First, it explores the emergence and development of Community research policies, in the changing political, cultural and economic context from the 1970s to the present, with a focus on the main narratives that have sustained and legitimised policy choices. Particular attention is paid to the life sciences and biotechnology as a research area where important issues of European governance and political culture emerged and were negotiated. Second, it aims to gain an understanding of the ways in which policy strategies have worked out in the actual practice of scientific cooperation. To do so, the second part of the thesis discusses the results of a micro-sociological study of two transnational networks in stem cell research, funded by the European Union under the Sixth Framework Programme (2002-2006)

Protecting Europe from diseases: from the international sanitary conferences to the ECDC.

In the past few decades there has been increased integration of communicable disease policies in Europe. The historical roots of this process date back to the mid-nineteenth century, when national authorities realized that the cross-boundary spread of diseases cannot be only a matter of national governance but requires common agreements and regulations. In the early 1950s the structuring of the World Health Organization in regional offices further contributed to the definition of Europe as a unit for risk assessments and international health cooperation. More recently the consolidation of the European Union has provided new institutional bases for shaping communicable disease policies at the supranational level. This article reviews these different attempts to protect the European space from diseases. It is argued that changing modes of communicable disease control not only have reflected shifts in public health priorities and institutional contexts but have also been important loci where different understandings of Europe and European political identity emerged and were negotiated. Against this background the article then examines past achievements and future challenges of the current European framework and discusses implications for the wider process of European integration

The making of evidence-informed health policy in Cambodia: knowledge, institutions, and processes

Introduction: In global health discussions, there have been widespread calls for health policy and programme implementation to be informed by the best available evidence. However, recommendations in the literature on knowledge translation are often decontextualized, with little attention to the local systems of institutions, structures, and practices which can direct the production of evidence and shape whether or how it informs health decisions. This article explores these issues in the country setting of Cambodia, where the Ministry of Health has explicitly championed the language of evidence-based approaches to policy and planning. Methods: Research for this paper combined multiple sources and material, including indepth interviews with key informants in Phnom Penh and the analysis of documentary material and publications. Data collection and analysis focused on two key domains in evidence advisory systems: domestic capacities to generate health-policy relevant evidence and institutional mechanisms to monitor, evaluate, and incorporate evidence in the policy process. Results: We identified a number of structural arrangements that may increasingly work to facilitate the supply of health-related data and information, and their use to inform policy and planning. However, other trends and features appear to be more problematic, including gaps between research and public health priorities in the country, the fragmented nature of research activities and information systems, the lack of a national policy to support and guide the production and use of evidence for health policy, and challenges to the use of evidence for inter-sectoral policy making. Conclusions: In Cambodia, as in other low- and middle-income countries, continued investments to increase the supply and quality of health data and information are needed, but greater attention should be paid to the enabling institutional environment to ensure relevance of health research products and effective knowledge management

Building Resilient Health Systems: Lessons Learned from the COVID-19 Pandemic

COVID-19 has posed unprecedented challenges to health systems worldwide, overwhelming health facilities and placing enormous pressure on the health workforce. In the third round of the World Health Organization’s ‘global pulse’ survey on continuity of essential health services during the pandemic, 92% of 129 participating countries reported critical bottlenecks to scaling up access to COVID-19 diagnostics, therapeutics, vaccines and equipment. In addition, widespread disruptions to emergency services and primary care have been documented in many areas, including maternal and child health, care for the elderly and global health issues such as HIV and tuberculosis. These disruptions could reverse years of progress in fragile and low-income contexts as scarce staff are diverted from routine services and funds are re-allocated to support COVID-19 activities

Sharing public health data and information across borders: lessons from Southeast Asia.

BACKGROUND: The importance of data and information sharing for the prevention and control of infectious diseases has long been recognised. In recent years, public health emergencies such as avian influenza, drug-resistant malaria, and Ebola have brought renewed attention to the need for effective communication channels between health authorities, particularly in regional contexts where neighbouring countries share common health threats. However, little empirical research has been conducted to date to explore the range of factors that may affect the transfer, exchange, and use of public health data and expertise across borders, especially in developing contexts. METHODS: To explore these issues, 60 interviews were conducted with domestic and international stakeholders in Cambodia and Vietnam, selected amongst those who were involved in regional public health programmes and networks. Data analysis was structured around three categories mapped across the dataset: (1) the nature of shared data and information; (2) the nature of communication channels; and (3) how information flow may be affected by the local, regional, and global system of rules and arrangements. RESULTS: There has been a great intensification in the circulation of data, information, and expertise across borders in Southeast Asia. However, findings from this study document ways in which the movement of data and information from production sites to other places can be challenging due to different standards and practices, language barriers, different national structures and rules that govern the circulation of health information inside and outside countries, imbalances in capacities and power, and sustainability of financing arrangements. CONCLUSIONS: Our study highlights the complex socio-technical nature of data and information sharing, suggesting that best practices require significant involvement of an independent third-party brokering organisation or office, which can redress imbalances between country partners at different levels in the data sharing process, create meaningful communication channels and make the most of shared information and data sets

Hyperbolic billiards with nearly flat focusing boundaries. I

The standard Wojtkowski-Markarian-Donnay-Bunimovich technique for the hyperbolicity of focusing or mixed billiards in the plane requires the diameter of a billiard table to be of the same order as the largest ray of curvature along the focusing boundary. This is due to the physical principle that is used in the proofs, the so-called defocusing mechanism of geometrical optics. In this paper we construct examples of hyperbolic billiards with a focusing boundary component of arbitrarily small curvature whose diameter is bounded by a constant independent of that curvature. Our proof employs a nonstardard cone bundle that does not solely use the familiar dispersing and defocusing mechanisms.Comment: 21 pages, 9 figure

Mapping emerging trends and South–South cooperation in regional knowledge networks: A bibliometric analysis of avian influenza research in Southeast Asia

This paper maps emerging trends and South-South cooperation in regional knowledge networks through a bibliometric analysis of avian influenza research in Southeast Asia, between 2004 and 2019. The findings indicate that a substantial research output involving researchers and organisations in the region was generated. However, wide disparities between countries existed, both in terms of output and participation in the regional network, which was largely driven by non-regional actors. A more proactive involvement of institutions for regional cooperation such as the Association of Southeast Asian Nations (ASEAN) would increase local ownership, sustainability and redress imbalances in the regional research system

The evolution of health policy in China and internal migrants: Continuity, change, and current implementation challenges

Rural–urban migration is a defining feature of socio-economic change in contemporary China. It is estimated that internal migrants in China account for 20% of its population of 1.39 billion, providing manpower to the expanding urban industries. Yet internal migrants have long faced barriers to accessing health and other social services in urban destinations, and the migration process may expose them to novel health risks and inequities. Based on the analysis of policy documents and associated material, this article reviews the historical development of health policy in China in relation to internal migrants, identifying elements of continuity and change in the policy agenda and the ways in which migrants have been framed in policy formulations. Against this background, remaining gaps in the current policy framework and implementation challenges are discussed

Lessons learned from the history of postgraduate medical training in Japan: from disease-centred care to patient-centred care in an aging society.

BACKGROUND: Health workers, the core of health service delivery and a key driver of progress towards universal health coverage, must be available in sufficient numbers and distributed fairly to serve the entire population. In addition, the planning and management of the health workforce must be responsive to the changing needs of society, including changes in age structure and epidemiology. Considering these issues, this paper examines in historical perspective the evolution of postgraduate medical training and practice in Japan, from the late nineteenth century to the present. MAIN TEXT: When the first medical schools were established in the country towards the end of the nineteenth century, Japan was a largely agrarian society, with a population of about 30 million and an average life expectancy of 30-40 years. During the twentieth century, life expectancy and the national population continued to increase in a context of rapid economic growth. Since the 1980s, another demographic transition has occurred: low fertility rates and an aging society. As a result, the inputs and skills required from health professionals have changed considerably over time, posing new challenges to the national health sector and the management of human resources for health. CONCLUSIONS: The case of Japan offers valuable lessons for other countries experiencing a rapid epidemiological and demographic transition. To provide medical care that meets health priorities in the communities, we must consider not only the training of specialists, but also ensure the availability of a large cadre of physicians who possess basic skills and can provide patient-centred care. Furthermore, the Japanese experience shows that a highly hierarchical system and organisational culture are ill-suited to respond quickly to the changing demands of society