967 resultados para global problems


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The global road safety problem The role of human factors in road crashes The use of driving simulators in road safety research The CARRS-Q advanced driving simulator –Functionality –Problems encountered and related solutions Past and current projects using the driving simulator Limitations of driving simulators

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Over the last five years we have observed the fallout from the global financial crisis (GFC). International cooperation and jointly adopted policies have dominated many of the solutions to the problems which have arisen. Initially, many nations in response to the GFC, implemented a two pronged short term solution by undertaking fiscal intervention and delivering rescue packages aimed at first, bailing out financial institutions and second, preventing or minimising the impact of a recession. Both programs involved large amounts of domestic spending. It was difficult in early 2007 to foresee the reduction that nations were about the face in domestic revenue collected. Five years on, not only have the first line effects of the GFC reduced the revenue raised by governments around the world, but the consequential costs associated with the rescue packages have also depleted domestic revenue bases. The response by stakeholders has been to attempt to secure domestic revenue bases through fiscally sustainable measures. Domestic sovereignty allows the levying of taxes as a nation chooses. However, rather than raise domestic taxes, revenue may also be increased by stemming the flow of income and capital to low and no-tax jurisdictions. The intervening five-year period since the GFC allows a unique insight into the response by nations and international organisations to tax evasion, tax avoidance and aggressive tax competition through the cross border flows of capital and the resulting affect that the GFC has had on international tax cooperation. By investigating the change in the international tax landscape over the last five years, which reveals the work done by stakeholders in developing fiscally responsible responses to the problems that have arisen, it may be possible to predict the trajectory of the international tax landscape over the next five years.

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It is more than 10 years since the anthropologist DiGiacomo (1999) answered the question “Can there be a cultural epidemiology?” with disappointment, concluding ethnographic and epidemiological narratives are divergent not complementary. In the same year, the epidemiologist Krieger (1999, p. 1151) asked related questions about the epistemological foundations of epidemiology: “Epidemiology is–or is not—the basic science of public health. Epidemiology is—or is not—an objective science. Science and advocacy are—or are not—distinct and contrary endeavours.” Again in the same year the Indigenous researcher Smith (1999, p. 1) wrote, “From the vantage point of the colonized, a position from which I write, and choose to privilege, the term ‘research’ is inextricably linked to European imperialism and colonialism.” The act of conceptualizing and practicing cultural epidemiology thus brings with it a series of deep epistemological questions about the nature of knowledge production. The Western academy of health research assumes an intellectual and moral privilege to fill gaps in knowledge aimed at yielding improvements in health status. With such privilege comes responsibility, since the power to conceptualize health problems and their solutions deserves considerable critical, historical, and political reflexivity, particularly at the boundaries between dominant and oppressed cultural spaces...

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Objective: Malnutrition results in poor health outcomes, and people with Parkinson’s disease may be more at risk of malnutrition. However, the prevalence of malnutrition in Parkinson’s disease is not yet well defined. The aim of this study is to provide an estimate of the extent of malnutrition in community-dwelling people with Parkinson’s disease. Methods: This is a cross-sectional study of people with Parkinson’s disease residing within a 2 hour driving radius of Brisbane, Australia. The Subjective Global Assessment (SGA) and scored Patient Generated Subjective Global Assessment (PG-SGA) were used to assess nutritional status. Body weight, standing or knee height, mid-arm circumference and waist circumference were measured. Results: Nineteen (15%) of the participants were moderately malnourished (SGA-B). The median PG-SGA score of the SGA-B group was 8 (4 – 15), significantly higher than the SGA-A group, U=1860.5,p<.05. The symptoms most influencing intake were loss of appetite, constipation, early satiety and problems swallowing. Conclusions: As with other populations, malnutrition remains under-recognised and undiagnosed in people with Parkinson’s disease. Regular screening of nutritional status in people with Parkinson’s disease by health professionals with whom they have regular contact should occur to identify those who may benefit from further nutrition assessment and intervention.

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This book identifies the fundamental legal principles and the governance requirements of sustainable forest management. An analytical model for assessing forest regulation is created which identifies the doctrinal concepts that underpin forest regulation (justice, property, sovereignty and governance). It also highlights the dominant public international institutions involved in forest regulation (UNFF, UNFCCC and WB) which is followed by analysis of non-state international forest regulation (forest certification and ecosystem markets). The book concludes by making a number of practical recommendations for reform of global forest governance arrangements and suggested reforms for individual international forest institutions.

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This is the protocol for a review and there is no abstract. The objectives are as follows: The primary objective of this review will be to assess the effect of internet and mobile phone alcohol-related interventions on reducing participants' alcohol consumption. Secondary objectives will include assessing the impact of the interventions on symptoms of alcohol-related disorders and degree of alcohol dependence, the effects on functioning, and patient acceptability. The review will also assess whether there are different outcomes for different diagnostic groups, and which intervention approaches or components (including therapeutic support) may be contributing to any positive effects.

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The rapid growth of services available on the Internet and exploited through ever globalizing business networks poses new challenges for service interoperability. New services, from consumer “apps”, enterprise suites, platform and infrastructure resources, are vying for demand with quickly evolving and overlapping capabilities, and shorter cycles of extending service access from user interfaces to software interfaces. Services, drawn from a wider global setting, are subject to greater change and heterogeneity, demanding new requirements for structural and behavioral interface adaptation. In this paper, we analyze service interoperability scenarios in global business networks, and propose new patterns for service interactions, above those proposed over the last 10 years through the development of Web service standards and process choreography languages. By contrast, we reduce assumptions of design-time knowledge required to adapt services, giving way to run-time mismatch resolutions, extend the focus from bilateral to multilateral messaging interactions, and propose declarative ways in which services and interactions take part in long-running conversations via the explicit use of state.

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This article argues for an interdisciplinary approach to mathematical problem solving at the elementary school, one that draws upon the engineering domain. A modeling approach, using engineering model eliciting activities, might provide a rich source of meaningful situations that capitalize on and extend students’ existing mathematical learning. The study reports on the developments of 48 twelve-year old students who worked on the Bridge Design activity. Results revealed that young students, even before formal instruction, have the capacity to deal with complex interdisciplinary problems. A number of students created quite appropriate models by developing the necessary mathematical constructs to solve the problem. Students’ difficulties in mathematizing the problem, and in revising and documenting their models are presented and analysed, followed by a discussion on the appropriateness of a modeling approach as a means for introducing complex problems to elementary school students.

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This paper presents a shared autonomy control scheme for a quadcopter that is suited for inspection of vertical infrastructure — tall man-made structures such as streetlights, electricity poles or the exterior surfaces of buildings. Current approaches to inspection of such structures is slow, expensive, and potentially hazardous. Low-cost aerial platforms with an ability to hover now have sufficient payload and endurance for this kind of task, but require significant human skill to fly. We develop a control architecture that enables synergy between the ground-based operator and the aerial inspection robot. An unskilled operator is assisted by onboard sensing and partial autonomy to safely fly the robot in close proximity to the structure. The operator uses their domain knowledge and problem solving skills to guide the robot in difficult to reach locations to inspect and assess the condition of the infrastructure. The operator commands the robot in a local task coordinate frame with limited degrees of freedom (DOF). For instance: up/down, left/right, toward/away with respect to the infrastructure. We therefore avoid problems of global mapping and navigation while providing an intuitive interface to the operator. We describe algorithms for pole detection, robot velocity estimation with respect to the pole, and position estimation in 3D space as well as the control algorithms and overall system architecture. We present initial results of shared autonomy of a quadrotor with respect to a vertical pole and robot performance is evaluated by comparing with motion capture data.