Sources of financial assistance for households suffering an adult death in Kagera, Tanzania

The AIDS crisis in Africa and elsewhere compels us to design appropriate assistance policies for households experience a death. Policies should take into account and strengthen existing household coping strategies, rather than duplicate or undermine them. The authors investigate the nature of coping mechanisms among a sample of households in Kagera, Tanzania in 1991-1994. They estimate the magnitude and timing of receipts of private transfers, credits, and public assistance by households with different characteristics. Their empirical strategy addresses three common methodological difficulties in estimating the impact of adult death: selection bias, endogeneity, and unobserved heterogeneity. The authors find that less-poor households (those with more physical and human capital) benefit from larger receipts of private assistance than poor households. Resource-abundant households are wealthy in social assets as well as physical assets. Poor households, on the other hand, rely relatively more on loans than private transfers, for up to a year after a death. This suggests that credit acts as insurance for households where informal interhousehold assistance contracts are not enforceable. A donor in Kagera can be sure that assistance to a wealthy household may not be able to return the favor. Assistance to the poor is more likely to come with more formal arrangements for repayment. Formal-sector assistance is targeted toward the poor immediately following the death. The impact of adult deaths on households may be mitigated either ex ante, through programs that minimize poverty and vulnerability, or ex post, by assistance targeted to the poorest and most vulnerable households. In addition, to the extent to which micro-credit programs improve access and lower the total costs of borrowing, they may not only stimulate growth and investment but also help resource-poor households overcome the impact of an adult death in the areas hard-hit by the AIDS epidemic.Rural Poverty Reduction,Safety Nets and Transfers,Services&Transfers to Poor,VN-Acb Mis -- IFC-00535908,Housing&Human Habitats

Book Review: \u3ci\u3ePower Struggles: Hydro Development and First Nations in Manitoba and Quebec\u3c/i\u3e Edited by Thibault Martin and Steven M. Hoffman

When First Nations try to protect their lands and waters it very often involves a struggle against some form of energy-related development. The greatest challenge facing those wishing to understand the long and complicated history between First Nations and hydro development in Canada is just that: it’s a very long and complex story. While this history begins over 50 years ago, the ensuing destruction of Indigenous lands and waters, cultures and ways of life, continues to this day. Many have believed the time of building new big dams was over, especially since the Report of the World Commission on Dams (WCD) in 2000 highlighted the often environmentally and socially devastating, and in many cases unnecessary, damages inflicted by large dams on local peoples. The WCD concluded that large dams should not be supported unless they result in a “significant advance of human development on a basis that is economically viable, socially equitable, and environmentally sustainable.” Nine years later, however, pressing calls for clean energy sources have combined with extensive “green-washing” of hydro development’s destructive effects to resurrect plans for hydro development (of all sizes) across Canada. The question remains to be answered, though, whether these new dams will result in the “ends” necessary for sustainable improvement of human welfare in Indigenous communities

A Semiotic Framework to Understand How Signs in a Collective Design Task Convey Information: A Pilot Study of Design in an Open Crowd Context

A leading factor in reshaping boundaries between participatory design and co-creation is the power of crowd-sourcing; however crowd sourced design often produces less innovative results than smaller expert design teams. In design, representation plays a fundamental role whilst in crowd sourced design the collective interaction with representations is restricted. We propose more effective design in collective intelligence lies in the crowd’s ability to generate meaningful contributions via the content of shared representations. In order to investigate this, the current paper examines how meanings are generated through the use of visual representations. We introduce a semiotic framework to understand the mechanisms of how signs convey con-textual information in a collective design task, and illustrate the framework by applying it in an analysis of the signs used by the crowd engaging in an openly shared design task

Ultra-high-speed graphene optical modulator design based on tight field confinement in a slot waveguide

We present a design of an ultra-fast in-line graphene optical modulator on a silicon waveguide with a bandwidth exceeding 100 GHz, very small power consumption below 15 fJ/bit, and insertion loss of 1.5 dB. This is achieved by utilizing the transverse-electric-mode silicon slot to tailor the overlap of graphene electrodes, thus significantly reducing the capacitance of the device while maintaining a low insertion loss and using conservative estimates of the graphene resistance. Our design is substantiated by comprehensive finite-element-method simulations and RC circuit characterization, as well as fabrication feasibility discussion

NADPH oxidase deficiency results in reduced alveolar macrophage 5â lipoxygenase expression and decreased leukotriene synthesis

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141933/1/jlb1585.pd