45 research outputs found
Controlling and executing communications based train control (CBTC) installation & testing with a CBTC- ready vehicle
No full textA Mirror? A Rainbow? A Check? A Map?
No full textThis paper discusses the context of supervision for career practitioners in New Zealand. It examines different ways in which supervision in careers work can be viewed and explores some current frameworks and approaches. The concept of multiple metaphors as a way of describing career supervision is used as an integrating theme for viewing approaches to supervision for career practitioners. [ABSTRACT FROM AUTHOR] Copyright of New Zealand Journal of Counselling is the property of New Zealand Association of Counsellors and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.
CHARTING PROGRESS IN THE SOFTWARE ACQUISITION PATHWAY
No full textThe Department of the Navy (DON) recently implemented the Department of Defense (DOD) Software Acquisition Pathway (SWP), a software acquisition strategy for custom application and embedded software. The purpose of the SWP is to enable rapid and iterative delivery of high-priority software capability to the intended user. But while the SWP uses an agile software development approach, neither the DOD nor the DON have yet provided comprehensive governance tools and methods for SWP programs to iteratively plan, track, and assess acquisition outcomes in agile environments. To close this gap, the author systematically researched commercial software engineering management and digital product development practices as well as prior DOD software acquisition reform studies. Based on the results, the author showed that Earned Value Management is incompatible with the SWP and recommended alternative techniques to measure cost and schedule performance. Additionally, the author recommended a phased approach to manage DON SWP custom application programs, whereby a minimal, unitless work breakdown structure is used to track progress until demonstrating the minimum viable product to the user in a testing environment; product-based metrics are then tracked until initial release of the custom application software; and then outcome-based goals are iteratively set, tracked, and assessed using the Objectives and Key Results framework for as long as the custom application software is in use.Approved for public release. Distribution is unlimited.Captain, United States Air Forc
Ocean circulation and geomagnetic influences on the atmospheric 14C record spanning the past 50,000 years from u-th and 14C dated fossil corals
No full textThe radiocarbon content (14C) of the atmosphere is primarily controlled by changes in production, regulated by solar output and shielding in the earth’s magnetic field, further influenced by changes in ocean circulation. Fossil corals provide an excellent archive for reconstructing past changes in the 14C/12C atmospheric ratio (Δ14C) because both the 14C age and the calendar age, determined by U-series dating methods, can be obtained from the same sample. This is a requirement for computing accurate estimates of Δ14C. Accuracy in coral Δ14C records, however, requires that corrections be made for the age offset between the surface water in which the coral grew and the contemporaneous atmosphere, called the marine reservoir age correction. In this study the marine reservoir correction is calculated for tropical Atlantic (Barbados) and Pacific (Kiritimati Atoll and Araki Island) corals to generate a record of Δ14C from 50 to 7 thousand years before present (kyr BP). Atlantic and Pacific coral Δ14C data precisely match the timing and amplitude changes predicted in ocean-atmosphere coupled models demonstrating shutdown of North Atlantic Deep Water (NADW) at the start of the Younger Dryas cold interval (12.9 kyr BP) lowers the 14C age of Atlantic surface water. A sharp decline in coral Δ14C at 14.7 kyr BP coincides with proxy evidence for switch on of NADW. Taken together, these records provide credible evidence linking changes in NADW production to changes in the 14C content of the atmosphere. In contrast to 15 to 7 kyr BP when changes in Δ14C largely reflect production changes in North Atlantic Deep Water, prominent features in Δ14C from 50 to 15 kyr BP are due to the long-term effects of increased production of atmospheric 14C during a weakened geomagnetic field at the time of the Laschamp (41 kyr BP) and Mono Lake (31.5 kyr BP) excursions. Removing the excess 14C produced in the atmosphere during excursion events from the Δ14C record effectively removes the rapid Δ14C decline during the “Mystery Interval” (17.5 to 14.5 kyr BP) that has been widely attributed to release of 14C-depleted CO2 during ventilation of the deep ocean.Ph.D.Includes bibliographical referencesby Richard Andrew Mortloc
Rapture: South Branch Mortlock River, Doodenanning, Canto of the Dry River Empyrean (30), Rapture 6: The Crescent of Little Beach
No full textAustralian-born John Kinsella is the author of more than thirty books of poetry, fiction and nonfiction, and editor of the international literary journal Salt. His volume of poems The New Arcadia appeared from Norton in 2005
Maori preservice primary teachers’ responses to mathematics investigations
No full textThere has been concern for some years about the low mathematics achievement of Maori students in New Zealand. This case study reports on the responses of 18 Maori preservice teachers to investigative approaches to learning mathematics during their compulsory Year 1 mathematics education course, as a possible aid towards helping improve the achievement level of Maori in mathematics
