Curves of Finite Total Curvature

We consider the class of curves of finite total curvature, as introduced by Milnor. This is a natural class for variational problems and geometric knot theory, and since it includes both smooth and polygonal curves, its study shows us connections between discrete and differential geometry. To explore these ideas, we consider theorems of Fary/Milnor, Schur, Chakerian and Wienholtz.Comment: 25 pages, 4 figures; final version, to appear in "Discrete Differential Geometry", Oberwolfach Seminars 38, Birkhauser, 200

Promotion of Skin Protection in Children in Waterbury, VT

Background: Vermont has among the highest rates of skin cancer in the nation. Between 2001 and 2005, Vermont had the highest incidence of melanoma of any state, 63% higher than the national average. It is also estimated that if children under 18 regularly used sunscreen of at least SPF 15, the incidence of squamous and basal cell carcinomas would decrease by 78%. Modeling by the EPA and CDC suggests that recommended sun protection measures could prevent 11,000 cases of skin cancer, 50 deaths, and $30 million in cancer treatment costs nationwide. Intervention: To create an information sheet on skin protection and skin cancer prevention to be included in well-child visits at the Waterbury Health Center. Method: I integrated state-specific data, national data, and epidemiologic facts about the risks of sun exposure and other risks for skin cancer with recommendations made by the UVM Dermatology residents who I interviewed, in order to create a brief yet fairly comprehensive fact sheet on skin protection in children.https://scholarworks.uvm.edu/fmclerk/1281/thumbnail.jp

Nickel Cadmium Charge Control Concepts

The design and testing of charge control concepts for several power systems is presented. The design of the CRAM charge control system for the SAS satellites and the design of the battery charge regulator for the AMPTE satellites is reviewed. Another charge control concept examined is for the OPEN program and its use of a microprocessor. The use of the voltage limiter is also discussed

Five challenges to the future of transboundary water governance

This repository item contains a single issue of Issues in Brief, a series of policy briefs that began publishing in 2008 by the Boston University Frederick S. Pardee Center for the Study of the Longer-Range Future.Pardee 2013 Graduate Summer Fellow Leeann Sullivan uses the Okavango River in Southern Africa as a case study to discuss the key challenges of the future of transboundary water governance. She argues that while local-level management has been successful thus far, climate change and rapid socio-economic development pose basin-wide challenges that communities cannot address alone. By creating a regional framework to help communities tackle issues of communication, governance, financial stability, resource allocation, and data management, water managers may be able to strengthen political and environmental resilience in the basin. She concludes that lessons drawn from the integration of management systems in the Okavango could inform practices for sustainable water management in a more global context

Using a Cruise Report to Generate XML Metadata

Since 2005 metadata generation at the Center for Coastal and Ocean Mapping/Joint Hydrographic Center has slowly evolved from a painful and tedious process of copying and pasting, to generate hundreds of files, to using an automated system that generates 90% of the needed metadata from the data collected on cruises. However there remained one piece missing to the automated system- the wordy part of the metadata that deals with information such as the attribute accuracy report, abstract and the process description. This information cannot be mined from the raw survey data. This paper illustrates how to generate a template from a Microsoft Word based cruise report that can be used in conjunction with another template (generated from the raw data collected on a cruise) to create XML metadata ready for submission to the NOAA/National Geophysical Data Center

ChUM: Chart Update Mashup

The Chart Update Mash up (ChUM™) consists of various APIs/Technologies that when brought together allow for intuitive georeferenced visualization of the Critical Chart Updates published by the Office of Coast Survey (OCS). Each component of ChUM™ will be described in this paper with an explanation of how each piece works together to form ChUM™. Figure 1 shows the basic building blocks that make up ChUM™. At the base of the structure (in blue) is the data that OCS disseminates to the public via its website/web-services: Raster Nautical Charts, the CRIT data (critical corrections to the chart), and the Coast Pilot. There are three 3rd party API’s (Application Programming Interface)/plug-ins that are used: the Google Maps API v3, the DataTables plug-in, and the NauticalChartsAPI (NCAPI). The NCAPI is an API created by the University of California, San Diego’s Coastal Observing Research and Development Center (CORDC) and it deals directly with fetching and preparing the Raster Nautical charts for use in Google Maps. The DataTables is a plug-in for the jQuery JavaScript library and it is populated with data from the OCS CRIT data. The NauticalChartsAPI UI (User Interface), NCAPIUI, was created by combining the NCAPI, DataTables, and the Coast Pilot data into one API that contained widgets for an intuitive interface that is similar in look and function as the Google Maps widgets. Google Map API is used for its geo-referenced environment and for its familiar controls that are built-in: namely, the panning, zooming, markers/info boxes and various background-overlay options