Adaptation to climate extremes in developing countries : the role of education

Global climate models predict a rise in extreme weather in the next century. To better understand future interactions among adaptation costs, socioeconomic development, and climate change in developing countries, observed losses of life from floods and droughts during 1960-2003 are modeled using three determinants: weather events, income per capita, and female education. The analysis reveals countries with high female education weathered extreme weather events better than countries with equivalent income and weather conditions. In that case, one would expect resilience to increase with economic growth and improvements in education. The relationship between resilience in the face of extreme weather events and increases in female education expenditure holds when socioeconomic development continues but the climate does not change, and socioeconomic development continues with weather paths driven by"wet"and"dry"Global Climate Models. Educating young women may be one of the best climate change disaster prevention investments in addition to high social rates of return in overall sustainable development goals.Hazard Risk Management,Population Policies,Climate Change Economics,Climate Change Mitigation and Green House Gases,Climate Change Impacts

The Economics of Adaptation to Extreme Weather Events in Developing Countries

Without international assistance, developing countries will adapt to climate change as best they can. Part of the cost will be absorbed by households and part by the public sector. Adaptation costs will themselves be affected by socioeconomic development, which will also be affected by climate change. Without a better understanding of these interactions, it will be difficult for climate negotiators and donor institutions to determine the appropriate levels and modes of adaptation assistance. This paper contributes by assessing the economics of adaptation to extreme weather events. We address several questions that are relevant for the international discussion: How will climate change alter the incidence of these events, and how will their impact be distributed geographically? How will future socioeconomic development, notably an increased focus on education and empowerment for women and girls, affect the vulnerability of affected communities? And, of primary interest to negotiators and donors, how much would it cost to neutralize the threat of additional losses in this context?women; girls; extreme weather; education; economic development; climate change

Economic Dynamics and Forest Clearing: A Spatial Econometric Analysis for Indonesia- Working Paper 280

This paper uses a large panel database to investigate the determinants of forest clearing in Indonesian kabupatens since 2005. Our study incorporates short-run changes in prices and demand for palm oil and wood products, as well as the exchange rate, the real interest rate, land-use zoning, forest protection, the estimated opportunity cost of forested land, the quality of local governance, the poverty rate, population density, the availability of communications infrastructure, transport cost, and local rainfall and terrain slope. Our econometric results highlight the role of dynamic economic factors in forest clearing. We find significant roles for lagged changes in all the short-run economic variables—product prices, demands, the exchange rate and the real interest rate—as well as communications infrastructure, some types of commercial zoning, rainfall, and terrain slope. We find no significance for the other variables, and the absence of impact for protected-area status is particularly notable. Our results strongly support the model of forest clearing as an investment that is highly sensitive to expectations about future forest product prices and demands, as well as changes in the cost of capital (indexed by the real interest rate), the relative cost of local inputs (indexed by the exchange rate), and the cost of land clearing (indexed by local precipitation). By implication, the opportunity cost of forested land fluctuates widely with changes in international markets and decisions by Indonesia’s financial authorities about the exchange and interest rates. Our results suggest that forest conservation programs are unlikely to succeed if they ignore such powerful force.

Optogenetic Interrogation of Functional Synapse Formation by Corticospinal Tract Axons in the Injured Spinal Cord

To restore function after injury to the CNS, axons must be stimulated to extend into denervated territory and, critically, must form functional synapses with appropriate targets. We showed previously that forced overexpression of the transcription factor Sox11 increases axon growth by corticospinal tract (CST) neurons after spinal injury. However, behavioral outcomes were not improved, raising the question of whether the newly sprouted axons are able to form functional synapses. Here we developed an optogenetic strategy, paired with single-unit extracellular recordings, to assess the ability of Sox11-stimulated CST axons to functionally integrate in the circuitry of the cervical spinal cord. Initial time course experiments established the expression and function of virally expressed Channelrhodopsin (ChR2) in CST cell bodies and in axon terminals in cervical spinal cord. Pyramidotomies were performed in adult mice to deprive the left side of the spinal cord of CST input, and the right CST was treated with adeno-associated virus (AAV)–Sox11 or AAV–EBFP control, along with AAV–ChR2. As expected, Sox11 treatment caused robust midline crossing of CST axons into previously denervated left spinal cord. Clear postsynaptic responses resulted from optogenetic activation of CST terminals, demonstrating the ability of Sox11-stimulated axons to form functional synapses. Mapping of the distribution of CST-evoked spinal activity revealed overall similarity between intact and newly innervated spinal tissue. These data demonstrate the formation of functional synapses by Sox11-stimulated CST axons without significant behavioral benefit, suggesting that new synapses may be mistargeted or otherwise impaired in the ability to coordinate functional output. SIGNIFICANCE STATEMENT As continued progress is made in promoting the regeneration of CNS axons, questions of synaptic integration are increasingly prominent. Demonstrating direct synaptic integration by regenerated axons and distinguishing its function from indirect relay circuits and target field plasticity have presented technical challenges. Here we force the overexpression of Sox11 to stimulate the growth of corticospinal tract axons in the cervical spinal cord and then use specific optogenetic activation to assess their ability to directly drive postsynaptic activity in spinal cord neurons. By confirming successful synaptic integration, these data illustrate a novel optogenetic-based strategy to monitor and optimize functional reconnection by newly sprouted axons in the injured CNS

IUB Libraries Video Streaming Service: A Technical Overview

A recording is not available for this presentation.The IUB Libraries Video Streaming Service received its soft launch in the Fall 2008 semester, allowing staff in Wells Library Media and Reserve Services to make both locally-digitized video and digital video files licensed from vendors available for online streaming by members of the IU community. This service was developed by the Digital Library Program in consultation with Media and Reserve Services, based in part upon previous pilots and prototypes supported by both DLP and Library Information Technology. In this presentation, we will demonstrate the functionality of the Video Streaming Service both from the perspective of a student or faculty member viewing a video and a library staff member loading a new video into the system. We will then discuss the technologies used to implement the service, including Adobe Flash Media Server, theffmpeg audio/video encoder, and locally-developed video drop box, content management, and workflow tools

THE EFFECTS OF RESTRICTIVENESS AND PREFERENCE FOR PROCEDURAL ORDER ON THE APPROPRIATION OF GROUP DECISION HEURISTICS IN A GSS ENVIRONMENT

This research examines two research questions. First, does restrictiveness (i.e., the manner in which use of group resources is limited or channeled) (Silver 1988, 1990; DeSanclis et al. 1989) influence group performance and member perceptions as measured by decision quality and satisfaction? Second, does the composition of a GSS supported group in terms of individual preference for procedural order (PPO) (Putnam 1979) influence group performance and member perceptions? 7\u27his research tests and extends the Adaptive Structuration Theory (AST) (Poole and DeSanctis 1990). AST argues that GSSs are a social technology through which groups may choose to faithfully or ironically appropriate GSS structures. The PPO construct was also examined in this research. The PPO construct suggests that individuals enter group work with predispositions for particular work habits. For instance. High Procedural Order (HPO) individuals prefer planned, sequential patterns of organizing task activities and will seek to structure activities by sending procedural messages while Low Procedural Order (LPO) individuals send fewer procedural messages and prefer a cyclical ordering of activities. We suggest lhat a group member\u27 s PPO may be an important source of contextual structures for the appropriation processes described by AST. A laboratory experiment was conducted to evaluate the impacts of GSS- and facilitator-based restrictiveness on group processes and outcomes. The independent variables in this study were restrictiveness and the group\u27s PPO composition. Twenty-eight 5-member groups composed entirely of all HPO individuals (fourteen groups) or all LPO individuals (fourteen groups) were randomly assigned to either a restrictive or nonrestrictive treatment. The restrictive treatment was operationalized by activating three sources of restrictiveness: user-based training, facilitator-based process guidance, and GSS-based (via a level-2 GSS - VisionQuest™). The nonrestrictive treatment did not specifically impose any form of restricliveness. The comprehensive heuristic was a modification of Dewey\u27s (1910) reflective thinking process. The $OB Policy Task. a hidden profile task (Stasser 1992), was developed and used for this experimenL This task is designed so that information from all members is essential for identifying the dominant problems and for finding a jointly acceptable solution. In tenns of decision quality. an ANOVA found no significant difference between groups in each of the treatment conditions; however, the trends in the data are suggestive and imply that I-PO groups in the non-reslrictive condition tend to produce better quality solutions (F = 1.594. p = 0.219). Further. a one-way analysis for groups in the non-restrictive condition across the PPO dimension approached significance (F = 3.0846; p = 0.105) and suggests that groups composed of LPO me:nbers performed this task better than groups composed of }IPO members, Results for satisfaction (Green and Taber 1980) indicate that I IPO group members reported greater participation in the discussion (F = 12.27, p = 0.001), that they were more satisfied with their group\u27s solution (F = 10.94, p = 0.001), and that they were also more satisfied with the process than were LPO members (F = 6.61, p = 0.011). No significant difference was identified for participation in terms of the restrictiveness treatment; however, groups in the restrictive condition were more satisfied with the solution (F = 5.78, p = 0.018) and with the process (F = 6.43, p = 0.012). In terms of qualitative results, the facilitators noted that groups in the non-restrictive treatment generally could not or chose not to appropriate the heuristic. Even when groups requested the GSS tool specified by the heuristic, they often misappropriated the heuristic or the GSS. These preliminary results are intriguing and suggest that PPO is a useful construct for understanding how group members appropriate and react to GSS technology and structured heuristics. A better understanding of the intlicacies and differences in this appropriation process in the various conditions will be gained Lhrough a detailed examination of the decision-making process adopted by each group

Hamilton Cycles in Addition Graphs

If A is a square-free subset of an abelian group G, then the addition graph of A on G is the graph with vertex set G and distinct vertices x and y forming an edge if and only if x+y is in A. We prove that every connected cubic addition graph on an abelian group G whose order is divisible by 8 is Hamiltonian as well as every connected bipartite cubic addition graph on an abelian group G whose order is divisible by 4. We show that connected bipartite addition graphs are Cayley graphs and prove that every connected cubic Cayley graph on a group of dihedral type whose order is divisible by 4 is Hamiltonian