Learning to minimize energy costs and maximize mechanical work in a bimanual coordination task

The authors addressed the hypothesis that economy in motor coordination is a learning phenomenon realized by both reduced energy cost for a given workload and more external work at the same prepractice metabolic and attentional energy expenditure. "Self-optimization" of movement parameters has been proposed to reflect learned motor adaptations that minimize energy costs. Twelve men aged 22.3 [+ or -] 3.9 years practiced a 90[degrees] relative phase, upper limb, independent ergometer cycling task at 60 rpm, followed by a transfer test of unpracticed (45 and 75 rpm) and self-paced cadences. Performance in all conditions was initially unstable, inaccurate, and relatively high in both metabolic and attentional energy costs. With practice, coordinative stability increased, more work was performed for the same metabolic and attentional costs, and the same work was done at a reduced energy cost. Self-paced cycling was initially below the metabolically optimal, but following practice at 60 rpm was closer to optimal cadence. Given the many behavioral options of the motor system in meeting a variety of everyday movement task goals, optimal metabolic and attentional energy criteria may provide a solution to the problem of selecting the most adaptive coordination and control parameters.

The political economy of the resource curse in Russia

The resource curse is a concept that is becoming increasingly relevant to describe the politico-economic risk that Russia's natural resource wealth poses to its development. This article discusses this adverse effect of the fundamental resource industries on the politico-economic development of a country. It explores the degree to which this logic is particularly applicable to Russia. It also discusses the counterargument to this logic and provides some comments on the possible extrication from this undesirable development outcome.

Haunting the knowledge economy

This highly original book provides an engaging and critical introduction to the knowledge economy. The knowledge economy is a potent force pervading global and national policy circles. Yet few people outside the field of economics understand its central ideas and practices. This book makes these accessible. But it does much more. It provokes 'conversations' between the knowledge economy and those marginalized economies that haunt it: the risk, gift, libidinal and survival economies. These illuminate the knowledge economy's shortcomings and point to alternative possible systems of exchange and sets of values. This multi-disciplinary study takes the knowledge economy out of the hands of the economists and brings it into creative tension with the ideas of key thinkers from sociology, anthropology, philosophy and ecology. Illustrating the benefits of conversing with the ghosts of alternative economies, this provocative book will unsettle the way in which the knowledge economy is understood. Groundbreaking and globally applicable, it has been authored by internationally respected authors and its conceptual breadth pertains to a range of disciplines and gives it its wide appeal.

Overseas Chinese as expatriate managers in China: is their recruitment a solution to cross-cultural management problems for multinationals operating in China?

This paper examines the issue of diversity in Chinese identity and how it impacts on the operations of multinationals in China who recruit Overseas Chinese to handle cross-cultural issues. China’s rapid economic development and entry into the World Trade Organization in 2001 made her a formidable player in the global economy and direct foreign investment surged. Yet it is acknowledged that for the foreign investor in China, cross-cultural issues create difficulty at every level, from the interpersonal level relating to communication and negotiation, to the organizational level relating to decision making, human resource management practices, corporate legal institutions and liaison with government institutions. Western multinationals have considered the advantages of posting Overseas Chinese from Southeast Asian countries, Taiwan and Hong Kong to their China operations as a solution to cross-cultural management issues. But has this policy been successful? In terms of language expertise this would seem to be a good strategy, yet organizational case material contradicts this in reality. Overseas Chinese, while sharing some elements of Chinese culture with mainland Chinese, the Confucian heritage and other aspects such as language and diet, nevertheless have different world views and values and behave differently from mainland Chinese in areas critical to business management. As a survival strategy, Overseas Chinese have often developed dual identities which operate simultaneously. For political and historical reasons, many of them have had to adapt to the local culture of their country of citizenship or even hide their own ethnicity in order to survive. On the other hand, the mainland Chinese are different in that their behaviour has only had to be Chinese, but overlaid with this has been the experience of participating in a communist political environment for decades, which has left its mark on mainland Chinese culture. On the basis of their different historical experiences, in the current business environment in China, cultural confusion, difficulty and conflict may occur for the Overseas Chinese.

This paper focuses attention on the subtle cultural differences between the Overseas Chinese and mainland Chinese in an organizational context. This problem has yet to be researched in depth within international business and international management studies. It provides evidence that Overseas Chinese are not often favoured by the local Chinese. It gives insights on how to manage the local Chinese for foreign multinationals operating in China.

Exploring the oil price and real GDP nexus for a small island economy, the Fiji Islands

The goal of this paper is to examine the relationship between real GDP and oil prices using time series data for the period 1970–2005. Our main finding is that an increase in oil has a positive, albeit inelastic, impact on real GDP, inconsistent with the bulk of the literature. We argue that this is not a surprising result for the Fiji Islands. Our central argument focuses on two aspects of the Fijian economy: (1) the fact that actual output in Fiji has been around 50 per cent less than potential output; thus, Fiji's actual output has not reached a threshold level at which oil prices can negatively impact output; and (2) a rise in oil prices filters through to value added, which in turn is reflected in a larger actual output.

The bio-economy and the competition state : transcending the dichotomy between coordinated and liberal market economies

This article examines the role of the state in the emerging bio-economy. The starting point is that state interventions, including supportive regulatory arrangements and the shaping of public attitudes, constitute core assets in the evolution of bio-industrial complexes. Public policy in the bio-economy, across advanced industrial countries, is well captured by the “competition state” concept. This type of state takes different forms, analogously with the historical variants of the Keynesian welfare state. The article compares patterns of governance of the biotechnology sector in Finland and Sweden, the USA and the UK, and Australia. It is concluded that the bio-industry sector does not fit with the “models of capitalism” paradigm which postulates coherence within, and systemic divergences between, national models of economic governance. The bio-economy displays trends toward convergence, in particular mounting public investments in health care and in research and development. On the other hand, countries differ in their approach to market regulation, industrial support, and ethical restrictions. These differences do not follow the dichotomy between “liberal” and “coordinated” models of capitalism.

Automated attention flags in chronic disease care planning

Objectives: To assess the value of computerised decision support in the management of chronic respiratory disease by comparing agreement between three respiratory specialists, general practitioners (care coordinators), and decision support software.
Methods: Care guidelines for two chronic obstructive pulmonary disease projects of the SA HealthPlus Coordinated Care Trial were formulated. Decision support software, Care Plan On-Line (CPOL), was created to represent the intent of these guidelines via automated attention flags to appear in patients' electronic medical records. For a random sample of 20 patients with care plans, decisions about the use of nine additional services (eg,.smoking cessation, pneumococcal vaccination) were compared between the respiratory specialists, the patients' GPs and the CPOL attention flags.
Results: Agreement among the specialists was at the lower end of moderate (intraclass correlation coefficient [ICC], 0.48; 95% CI, 0.39-0.56), with a 20% rate of contradictory decisions. Agreement with recommendations of specialists was moderate to poor for GPs (le, 0.49; 95% CI, 0.33-0.66) and moderate to good for CPOL (K, 0.72; 95% CI, 0.55-0.90). CPOL agreement with GPs was moderate to poor (le, 0.41; 95% CI, 0.24-0.58). GPs were less likely than specialists or CPOL to decide in favour of an additional service (P< 0.001). CPOL was 87% accurate as an indicator of specialist decisions. It gave a 16% false-positive rate according to specialist decisions, and flagged 61% of decisions where GPs said No and specialists said Yes.
Conclusions: Automated decision support may provide GPs with improved access to the intent of guidelines; however, further investigation is required.