Study of Core 92AR-P25 from the Northwind Ridge, Central Arctic Ocean

The Arctic Ocean is presently the least understood ocean in the world. The perennial sea ice that covers most of the Arctic has hindered exploration and interpretation of this last remaining portion of the Earth’s surface. The geologic history of this ocean is not fully understood and needs to be studied in greater detail. The stratigraphic record in the Arctic is a topic of much debate, specifically when discussing ages and sedimentation rates. Various ways of age dating has shed new light on ages and sedimentation rates of the established stratigraphy. Proxies such as microfossils and isotope evidence are giving us new insights to the paleoceanography of the Arctic Ocean basin. Core 92AR-P25 from the Northwind Ridge shows correlation with the paleomagnetic time scale and agreement with the manganese color cycles proposed by Jakobsson et al, (2000). The correlation of the core, shows that many cores throughout the Central Arctic Ocean can be similarly correlated, allowing us to form a paleoceanography history of the Arctic Ocean

The Segment Ontology: Bridging Music-generic and Domain-specific

Existing semantic representations of music analysis encapsulate narrow sub-domain concepts and are frequently scoped by the context of a particular MIR task. Segmentation is a crucial abstraction in the investigation of phenomena which unfold over time; we present a Segment Ontology as the backbone of an approach that models properties from the musicological domain independently from MIR implementations and their signal processing foundations, whilst maintaining an accurate and complete description of the relationships that link them. This framework provides two principal advantages which are explored through several examples: a layered separation of concerns that aligns the model with the needs of the users and systems that consume and produce the data; and the ability to link multiple analyses of differing types through transforms to and from the Segment axis

Developmental Flight Instrumentation System for the Crew Launch Vehicle

The National Aeronautics and Space Administration is developing a new launch vehicle to replace the Space Shuttle. The Crew Launch Vehicle (CLV) will be a combination of new design hardware and heritage Apollo and Space Shuttle hardware. The current CLV configuration is a 5 segment solid rocket booster first stage and a new upper stage design with a modified Apollo era J-2 engine. The current schedule has two test flights with a first stage and a structurally identical, but without engine, upper stage. Then there will be two more test flights with a full complement of flight hardware. After the completion of the test flights, the first manned flight to the International Space Station is scheduled for late 2012. To verify the CLV's design margins a developmental flight instrumentation (DFI) system is needed. The DFI system will collect environmental and health data from the various CLV subsystem's and either transmit it to the ground or store it onboard for later evaluation on the ground. The CLV consists of 4 major elements: the first stage, the upper stage, the upper stage engine and the integration of the first stage, upper stage and upper stage engine. It is anticipated that each of CLVs elements will have some version of DFI. This paper will discuss a conceptual DFI design for each element and also of an integrated CLV DFI system

A scoping review to establish the relationship of community to the lives of looked after children and young people

Friendship networks and relationships with communities are important parts of the lives of looked after children and young people (LACYP). Much of legislation, policy, practice and research focuses on „the care experience‟ itself, as distinct from young people‟s everyday lives and their connectivity with wider environments. Considerable lack of understanding remains about what being „in care‟ means. This often results in prejudice and stigma. Groups set up specifically for LACYP offer opportunities to develop networks and relationships with adults and young people, and to raise awarenesses. Transitions may happen early and be experienced frequently by LACYP, however, they can offer new opportunities and positive relationships with different people. Meaningful participation in communities such as schools is an important factor in developing stability in relationships. Concepts of participation and empowerment form part of an ecological framework which locates the community context as central to building resilience for LACYP. What constitutes community cohesion and connectedness for LACYP requires a fine balance between the interests of protection and participation. Successful interconnectedness is a matter of shared concern for all. The key challenge remains that of identifying how stable community relationships for LACYP may be strengthened and supported to dynamic mutual benefit. These documents are outputs from the same project: 1) an end of project discussion paper; 2) an extended version of the discussion paper; and 3) four short guides for practice and polic

Design Considerations for a Launch Vehicle Development Flight Instrumentation System

When embarking into the design of a new launch vehicle, engineering models of expected vehicle performance are always generated. While many models are well established and understood, some models contain design features that are only marginally known. Unfortunately, these analytical models produce uncertainties in design margins. The best way to answer these analytical issues is with vehicle level testing. The National Aeronautics and Space Administration respond to these uncertainties by using a vehicle level system called the Development Flight Instrumentation, or DFI. This DFI system can be simple to implement, with only a few measurements, or it may be a sophisticated system with hundreds of measurement and video, without a recording capability. From experience with DFI systems, DFI never goes away. The system is renamed and allowed to continue, in most cases. Proper system design can aid the transition to future data requirements. This paper will discuss design features that need to be considered when developing a DFI system for a launch vehicle. It will briefly review the data acquisition units, sensors, multiplexers and recorders, telemetry components and harnessing. It will present a reasonable set of requirements which should be implemented in the beginning of the program in order to start the design. It will discuss a simplistic DFI architecture that could be the basis for the next NASA launch vehicle. This will be followed by a discussion of the "experiences gained" from a past DFI system implementation, such as the very successful Ares I-X test flight. Application of these design considerations may not work for every situation, but they may direct a path toward success or at least make one pause and ask the right questions

Comparison of Patient Tolerance of Photodynamic Therapy with Zone vs. Full Face Treatment

Background: Zone based photodynamic therapy (PDT) is a promising treatment option for actinic keratosis, superficial basal cell carcinoma, and in-situ squamous cell carcinoma. PDT has similar cure rates to 5-fluorouracil and imiquimod. Objective: Determine if PDT zone treatments improve patient comfort, tolerance, retention, and offer less severe reactions as compared to full face treatments. Methods: 500 PDT patients were divided into full face (n = 250) versus zone treatments (n = 250). All subjects completed a post-treatment phone survey assessing tolerance of procedure. Retention rates and severe reactions were tracked. Results: Zone treatment resulted in a higher number of excellent responses for patient tolerance vs. full face treatment group (85 % vs. 39%,

Enhanced surface transfer doping of diamond by V2O5 with improved thermal stability

Surface transfer doping of hydrogen-terminated diamond has been achieved utilising V2O5 as a surface electron accepting material. Contact between the oxide and diamondsurface promotes the transfer of electrons from the diamond into the V2O5 as revealed by the synchrotron-based high resolution photoemission spectroscopy. Electrical characterization by Hall measurement performed before and after V2O5 deposition shows an increase in hole carrier concentration in the diamond from 3.0 × 1012 to 1.8 × 1013 cm−2 at room temperature. High temperature Hall measurements performed up to 300 °C in atmosphere reveal greatly enhanced thermal stability of the hole channel produced using V2O5 in comparison with an air-induced surface conduction channel. Transfer doping of hydrogen-terminated diamond using high electron affinity oxides such as V2O5 is a promising approach for achieving thermally stable, high performance diamond based devices in comparison with air-induced surface transfer dopin

The use and implementation of microcomputers in secondary administration

The growth of computers since 1975 has been remarkable. Throughout. the country, computer stores are opening their doors to a public that is realizing the many uses of computers in homes, businesses, and schools. Computer technology has been available for many years, but it has only been since the availabilty of relatively inexpensive microcomputers that elementary and secondary schools could afford the educational advancement. National and state commissions on education recommended that computers become a part of the school curriculum. Boards of education have purchased computers to place in schools. Private industry has joined the computer movement in schools by providing free or reduced prices for hardware and software