A Measure for Ending Hunger in the United States

Hunger is a persistent problem in the United States. In 1999, three percent of U.S. households (more than 7.5 million people) were food insecure with hunger.2(p7) An additional seven percent of households (more than 23 million people) were food insecure without hunger. In all, 31 million Americans, including 12 million children, did not have enough food to meet their basic needs.In response, PARTNERS IN ENDING HUNGER (a grass-roots organization with over 17 years of experience) has declared itself an organization accountable for providing communities with the tools and training necessary to create and implement effective action plans for ending hunger (see Appendix A). Two essential tools for this work are: (1) a direct and accurate way to measure hunger in a community and (2) criteria that define when hunger has ended.The hunger measure PARTNERS has chosen is the U.S. Household Food Security Measure. It is a survey instrument and severity scale developed under the joint leadership of the U.S. Departments of Agriculture (USDA) and Health and Human Services (HHS). It has been used to measure the extent of hunger at national and state levels since 1995 and was specifically designed to be used at the local level as well.Building on distinctions and definitions presented in the U.S. Household Food Security Measure, PARTNERS has established criteria that define when hunger in a community has ended. According to PARTNERS' criteria, a community has ended hunger when, for two consecutive years, the results of the U.S. Household Food Security Measure show that none of the community's households have members who experience hunger and four percent or fewer of the community's households experience food insecurity. PARTNERS asserts that when communities meet these criteria and sustain these results over time, they have ended the persistence of hunger. These communities will then serve as models and catalysts for other communities to do the same

Unfurlable, continuous-surface reflector concept

Various concepts for large, deployable reflectors were developed and some have flown. In each case the surface material was either a continuous mesh of some sort or an assembly of rigid, continuous-surface facets or petals. Performance issues arise in each case. For mesh, reflectance diminishes with increasing frequency. For rigid sections, seams and relative positioning of the segments have to be dealt with. These two issues prompted the evolution of the concept of an unfurlable, continuous-surface reflector. The concept is described and what is learnt is presented, what is suspected will be learned, and also questions raised yet to be addressed

An Assessment of Coral Bleaching near Misali Island, Tanzania

Coral bleaching and reef health were studied in fringing reefs around Misali Island, Tanzania. Over a 28-day period, 1,329 coral colonies were surveyed along 31 transects. For each colony, data was collected on growth form and bleaching severity. No significant differences in bleaching frequency or intensity were observed between the resource extraction and non-extraction zones protected under the Pemba Channel Marine Conservation Area (PECCA). Bleaching was observed to be extensive across all coral growth forms and was found to collectively increase over the study period in frequency and intensity. This study indicates the vulnerability of Misali coral reefs to bleaching and reef degradation and draws attention to the ecological instability caused by global change and anthropogenic impact

Advanced Conducting Project

Contents include: Shalom! by Philip Sparke Cajun Folk Songs by Frank Ticheli Ode to Greensleeves by Richard Saucedo Prairiesong by Carl Strommen As Summer Was Just Beginning by Larry Daehn Voices in the Sky by Samuel R. Hazo Kitsune: The Fox Spirits by Brian Balmages Marche Diabolique by Brian Balmages

Process Algebra, CCS, and Bisimulation Decidability

Over the past fifteen years, there has been intensive study of formal systems that can model concurrency and communication. Two such systems are the Calculus of Communicating Systems, and the Algebra of Communicating Processes. The objective of this paper has two aspects; (1) to study the characteristics and features of these two systems, and (2) to investigate two interesting formal proofs concerning issues of decidability of bisimulation equivalence in these systems. An examination of the processes that generate context-free languages as a trace set shows that their bisimulation equivalence is decidable, in contrast to the undecidability of their trace set equivalence. Recent results have also shown that the bisimulation equivalence problem for processes with a limited amount of concurrency is decidable