Radar and RGB-depth sensors for fall detection: a review

This paper reviews recent works in the literature on the use of systems based on radar and RGB-Depth (RGB-D) sensors for fall detection, and discusses outstanding research challenges and trends related to this research field. Systems to detect reliably fall events and promptly alert carers and first responders have gained significant interest in the past few years in order to address the societal issue of an increasing number of elderly people living alone, with the associated risk of them falling and the consequences in terms of health treatments, reduced well-being, and costs. The interest in radar and RGB-D sensors is related to their capability to enable contactless and non-intrusive monitoring, which is an advantage for practical deployment and users’ acceptance and compliance, compared with other sensor technologies, such as video-cameras, or wearables. Furthermore, the possibility of combining and fusing information from The heterogeneous types of sensors is expected to improve the overall performance of practical fall detection systems. Researchers from different fields can benefit from multidisciplinary knowledge and awareness of the latest developments in radar and RGB-D sensors that this paper is discussing

Real-time human ambulation, activity, and physiological monitoring:taxonomy of issues, techniques, applications, challenges and limitations

Automated methods of real-time, unobtrusive, human ambulation, activity, and wellness monitoring and data analysis using various algorithmic techniques have been subjects of intense research. The general aim is to devise effective means of addressing the demands of assisted living, rehabilitation, and clinical observation and assessment through sensor-based monitoring. The research studies have resulted in a large amount of literature. This paper presents a holistic articulation of the research studies and offers comprehensive insights along four main axes: distribution of existing studies; monitoring device framework and sensor types; data collection, processing and analysis; and applications, limitations and challenges. The aim is to present a systematic and most complete study of literature in the area in order to identify research gaps and prioritize future research directions

Russian Roulette- Expenditure Inequality and Instability in Russia, 1994-1998

This paper uses the second phase of the Russian Longitudinal Monitoring Survey to investigate the changes in expenditure inequality and instability in Russia between the autumn of 1994 and the autumn of 1998. The expenditure distribution is stable in spite of the economic and political turmoil Russia is going through. However, that does not imply much economic stability. Households' expenditure fluctuated considerably, with over 60 percent of the population's expenditure either more than doubling or falling to less than half their previous levels. Only about 10 percent of all households experienced an expenditure shock of less than 10 percent. The measured level of expenditure mobility is very high. This raises the question whether the observed mobility is in fact the expenditure instability. Distinguishing between the two is crucial for policy makers. While the mobility is often viewed as favorable, the high instability may affect the incentives of Russians to support the economic reforms, acquire human capital, and undertake entrepreneurial activities.http://deepblue.lib.umich.edu/bitstream/2027.42/39742/3/wp358.pd

Poverty Analysis Within a General Equilibrium Framework

The main objective of this paper is to show how Social Accounting Matrices (SAM) and Computable General Equilibrium (CGE) Models can be used to highlight and address issues related to income distribution and poverty. The paper is divided into two major parts. Part 1 presents the concept of the SAM as a comprehensive, consistent and disaggregated data system and shows how the SAM methodology can be used to analyze issues related to income distribution and, in a much more limited way, poverty. Part 2 is devoted to the presentation of a CGE model calibrated on an archetype African SAM (same as above). One innovation in the specification of the present CGE is that it goes part way in endogenizing the poverty line and the resulting poverty incidence among the different socioeconomic household groups and representing income distribution with a flexible Beta distribution function and using the F-G-T additively decomposable class of poverty measures. The model is used to simulate the impact of two exogenous shocks (a fall in the price of the export crop and an import tariff reform) specifically on poverty.Poverty, Computable General Equilibrium Model, Input Output Models

Vision-based toddler tracking at home

This paper presents a vision-based toddler tracking system for detecting risk factors of a toddler's fall within the home environment. The risk factors have environmental and behavioral aspects and the research in this paper focuses on the behavioral aspects. Apart from common image processing tasks such as background subtraction, the vision-based toddler tracking involves human classification, acquisition of motion and position information, and handling of regional merges and splits. The human classification is based on dynamic motion vectors of the human body. The center of mass of each contour is detected and connected with the closest center of mass in the next frame to obtain position, speed, and directional information. This tracking system is further enhanced by dealing with regional merges and splits due to multiple object occlusions. In order to identify the merges and splits, two directional detections of closest region centers are conducted between every two successive frames. Merges and splits of a single object due to errors in the background subtraction are also handled. The tracking algorithms have been developed, implemented and tested

A Typology of Virtual Teams: Implications for Effective Leadership

As the nature of work in today\u27s organizations becomes more complex, dynamic, and global, there has been an increasing emphasis on far-flung, distributed, virtual teams as organizing units of work. Despite their growing prevalence, relatively little is known about this new form of work unit. The purpose of this paper is to present a theoretical framework to focus research toward understanding virtual teams and, in particular, to identify implications for effective leadership. Specifically, we focus on delineating the dimensions of a typology to characterize different types of virtual teams. First, we distinguish virtual teams from conventional teams to identify where current knowledge applies and new research needs to be developed. Second, we distinguish among different types of virtual teams, considering the critical role of task complexity in determining the underlying characteristics of virtual teams and leadership challenges the different types entail. Propositions addressing leadership implications for the effective management of virtual teams are proposed and discussed

Innovation Indicators: for a critical reflection on their use in Low- and Middle-Income Countries (LMICs)

It has been widely recognized that innovation is an important driver of economic growth. Many Low- and Middle-Income Countries (LMICs) have adopted innovation indicators to monitor innovation performance and to evaluate the impact of innovation policies. This paper argues that innovation indicators should be customized to the different socio-economic structures of LMICs. For this, the definition of innovation needs to be relevant to the multitude of innovation actors and processes in LMICs. LMICs also need to build competences not only in the construction of innovation indicators within their statistical systems, but also in the use of these indicators by among others policy makers. Especially as the fourth edition of the Oslo Manual (OM 2018) has broadened the scope of “innovation”, opening up policy space for LMICs to accommodate the diversity in their national systems of innovation and to develop accompanying innovation indicators.JEL Classification Codes: O38, O32, O29, P47http://www.grips.ac.jp/list/jp/facultyinfo/iizuka-michiko

Foundations for measuring equality: A discussion paper for the Equalities Review

The Equalities Review is an independent panel set up by the UK government in 2005 to investigate the persistence of social inequalities and to make recommendations for the development of a unified Commission for Equality and Human Rights. This paper was originally written for the Review. It canvasses possible responses to the questions, 'equality between whom?' and 'equality of what?'. It argues that equality of outcome is intuitively appealing but risks ignoring variations in need, differences in values and preferences, and the importance of individual agency. A broad interpretation of equality of opportunity, such as is provided by the capability approach, can address these limitations, by focusing on the substantive freedom enjoyed by individuals. Substantive freedom may be limited by a lack of personal resources, or by the economic, social, political, cultural, and environmental conditions context in which the individual is operating. The paper concludes by identifying, and indicating solutions to, a number of measurement issues that arise in operationalising the capability approach.Equality, opportunity, capability approach

Understanding the Education Trajectories of Young Black Men in New York City: Elementary and Middle-School Years

Making targeted decisions about how, when, and where to intervene to improve educational outcomes for black males requires understanding the complex pathways that shape these outcomes. This study, undertaken for the Black Male Donor Collaborative, uses longitudinal data on a cohort of black males from New York City Schools to gain insights about the different possible student paths, with specific focuses on middle school and math scale scores

Do Labour Market Institutions Matter? Micro-level Wage Effects of International Outsourcing in Three European Countries

This paper studies the impact of outsourcing on individual wages in three European countries with markedly different labour market institutions: Germany, the UK and Denmark. To do so we use individual level data sets for the three countries and construct comparable measures of outsourcing at the industry level, distinguishing outsourcing by broad region. Estimating the same specification on different data shows that there are some interesting differences in the effect of outsourcing across countries. We discuss some possible reasons for these differences based on labour market institutions.International outsourcing, individual wages, labour market institutions