Implementation of Ururguay Round commitments : the development challenge

At the Uruguay Round, developing countries took on unprecedented obligations not only to reduce trade barriers, but to implement significant reforms both of trade procedures, e.g., import licensing procedures, customs valuation and of many areas of regulation that establish the basic business environment in the domestic economy, e.g., technical, sanitary and phytosanitary standards (SPS), intellectual property law. Implementing such reforms are investment decisions in that implementation will require purchase of equipment, training of people, establishment of systems of checks and balances, etc. This will cost money and the amounts of money involved are substantial. Based on World Bank project experience in the areas covered by the agreements, an entire year's development budget is at stake in many of the least developed countries. Least developed country institutions in these areas are weak, and would benefit from strengthening and reform. However, the authors'analysis indicates that the World Trade Organization (WTO) obligations reflect little awareness of development problems and little appreciation of the capacities of the least developed countries to carry out the functions that SPS, customs valuation, intellectual property, etc. regulations address. The content of these obligations can be characterized as the advanced countries saying to the others,"Do it my way!"The authors touch at the beginning on another important point. Because of their limited capacity to participate in the Uruguay Round negotiations, the WTO process has generated no sense of"ownership"of the reforms to which WTO membership obligates them. From their perspective, the implementation exercise has been imposed in an imperial way, with little concern for what it will cost, how it will be done, or if it will support their development efforts.Economic Theory&Research,Judicial System Reform,Rules of Origin,Environmental Economics&Policies,Customs Administration,Economic Theory&Research,Rules of Origin,Trade and Regional Integration,Environmental Economics&Policies,Customs Administration

Mental Health and its Wicked Factors

Mental health has long since been an issue in not just our society, but worldwide. While it is difficult to determine exactly what factors affect mental health, there has been significant research done within the past 30 years to show that major factors that affect mental health can be mitigated. Things such as poverty, physical health, and community outreach can all be linked to mental health issues. There are some solutions that will mitigate these factors that can be explored. These solutions can include things like raising awareness for mental illnesses in order to reduce stigma, getting more mental health providers into the communities that need them, and further exploring the links between not just the factors and mental health, but also the links between the factors themselves

Using Unmanned Aerial Systems for Deriving Forest Stand Characteristics in Mixed Hardwoods of West Virginia

Forest inventory information is a principle driver for forest management decisions. Information gathered through these inventories provides a summary of the condition of forested stands. The method by which remote sensing aids land managers is changing rapidly. Imagery produced from unmanned aerial systems (UAS) offer high temporal and spatial resolutions to small-scale forest management. UAS imagery is less expensive and easier to coordinate to meet project needs compared to traditional manned aerial imagery. This study focused on producing an efficient and approachable work flow for producing forest stand board volume estimates from UAS imagery in mixed hardwood stands of West Virginia. A supplementary aim of this project was to evaluate which season was best to collect imagery for forest inventory. True color imagery was collected with a DJI Phantom 3 Professional UAS and was processed in Agisoft Photoscan Professional. Automated tree crown segmentation was performed with Trimble eCognition Developer’s multi-resolution segmentation function with manual optimization of parameters through an iterative process. Individual tree volume metrics were derived from field data relationships and volume estimates were processed in EZ CRUZ forest inventory software. The software, at best, correctly segmented 43% of the individual tree crowns. No correlation between season of imagery acquisition and quality of segmentation was shown. Volume and other stand characteristics were not accurately estimated and were faulted by poor segmentation. However, the imagery was able to capture gaps consistently and provide a visualization of forest health. Difficulties, successes and time required for these procedures were thoroughly noted

Controlled generation of a pn-junction in a waveguide integrated graphene photodetector

With its electrically tunable light absorption and ultrafast photoresponse, graphene is a promising candidate for high-speed chip-integrated photonics. The generation mechanisms of photosignals in graphene photodetectors have been studied extensively in the past years. However, the knowledge about efficient light conversion at graphene pn-junctions has not yet been translated into high-performance devices. Here, we present a graphene photodetector integrated on a silicon slot-waveguide, acting as a dual-gate to create a pn-junction in the optical absorption region of the device. While at zero bias the photo-thermoelectric effect is the dominant conversion process, an additional photoconductive contribution is identified in a biased configuration. Extrinsic responsivities of 35 mA/W, or 3.5 V/W, at zero bias and 76 mA/W at 300 mV bias voltage are achieved. The device exhibits a 3 dB-bandwidth of 65 GHz, which is the highest value reported for a graphene-based photodetector.Comment: 19 pages, 16 figure

Observing the space- and time-dependent growth of correlations in dynamically tuned synthetic Ising antiferromagnets

We explore the dynamics of artificial one- and two-dimensional Ising-like quantum antiferromagnets with different lattice geometries by using a Rydberg quantum simulator of up to 36 spins in which we dynamically tune the parameters of the Hamiltonian. We observe a region in parameter space with antiferromagnetic (AF) ordering, albeit with only finite-range correlations. We study systematically the influence of the ramp speeds on the correlations and their growth in time. We observe a delay in their build-up associated to the finite speed of propagation of correlations in a system with short-range interactions. We obtain a good agreement between experimental data and numerical simulations taking into account experimental imperfections measured at the single particle level. Finally, we develop an analytical model, based on a short-time expansion of the evolution operator, which captures the observed spatial structure of the correlations, and their build-up in time