PCsat Success! and Follow-On Payloads

PCsat was designed and built as a student project at the US Naval Academy and launched on 29 Sept 2001 on the Kodiak Star mission as an experimental communications payload to not only introduce students to space systems engineering, but also to begin a series of experiments in low cost spacecraft telemetry system and data communications for mobile satellite users. An additional unique feature of PCsat was the integration of multiple worldwide Internet linked ground stations allowing around the world access to satellite telemetry and communications live from anywhere. PCsat was a complete success and it has been used by thousands of users in its first 9 months of flight. It has validated the viability of our using off-the-shelf AX.25 for all Telemetry Command and Control as well as supporting a bent-pipe mission. As our first satellite, we have a lot of lessons learned and experiences with spacecraft operations and many ideas for the future. This paper sumarizes the design details for PCsat and highlights of the first year in space including what we have learned and what new experiments we want to do on our next communications mission

The PCsat Mission and Cubesat Design Notes

There are growing opportunities for Universities to gain educational access to Space. The Naval Academy has used the Department of Defense Space Test Program for its PCsat and Sapphire projects and the Stanford Cubesat program offers a unique opportunity to get numerous small student satellite payloads into space. As a spin-off of our PCsat project, we have investigated several off-the-shelf solutions to the Telemetry, Command and control portion of small satellites that can greatly simplify small satellite and CubeSat designs. This permits students to concentrate on the various payloads and other aspects of the project without starting from scratch with a comm. system. This simple comm. System based on AX.25 packet radio is being flown this summer in the Naval Academy’s Personal Communications Satellite (PCsat) which will demonstrate downlinks receivable on Hand Held Transceivers (HT’s) with only a whip antenna. Further these simple downlinks can be easily fed into the Internet for live worldwide distribution of data. These designs are all based on the amateur radio standard on-air AX.25 packet network protocol that is implemented in a number of off-the-shelf modems (called Terminal Node Controllers or TNC’s). The following paragraphs describe three such hardware devices and the remainder of this paper describes how TNC’s and the AX.25 protocol were used on PCsat

Student abstracts of selected articles

Vowel Nasality in Sudanese by Ron Trail, abstracted from Robins, R. H. 1957. Vowel Nasality in Sudanese, A Phonological and Grammatical Study. Studies in Linguistic Analysis, J.R. Firth ed. London: The Philological Society, 87-103. Style in Huichol by Nancy Freiberger, abstracted from Grimes, Joseph E. 1955. Style in Huichol Structure, Language 31.31-35. Trique Tone by Richard Bergman, abstracted from Longacre, Robert E. 1952. Five Phonemic Pitch Levels in Trique, Acta Linguistica 7.62-82. Tonme Representation in Mazatec Orthography by Ron Trail, abstracted from Gudschinsky, Sarah. 1959. Toneme Representation in Mazatec Orthography, Word, 15.446-52. Totonac Verb Inflection by Kenneth D. Smith, abstracted from Aschmann, Herman, and Wonderly, William L. 1952. Affixes and Implicit Categories in Totonac Verb Inflections, IJAL 18.130-45. Have as a Function Word by Jean Haggar, abstracted from Fries, Charles C. 1948. Have as a Function Word, Language Learning, 1.3,4-8. Bella Coola Phonology by Margie Griffin, abstracted from Newman, Stanley, 1947. Bella Coola I: Phonology, IJAL 13.129-34. Old High German Umlaut by Elwood Jacobson, abstracted from Twaddell, W. Freeman. 1938. A Note on Old High German Umlaut, Monatshefte für deutschen Unterricht, 30:177-81. Reprinted in Readings in Linguistics, edited by Martin Joos, 1958. Washington: American Council of Learned Societies, 85-87. The Phonemic Principle by Nancy Freiberger, abstracted from Swadesh, Morris, 1934. The Phonemic Principle, Language 10.117-29. Reprinted in Readings in Linguistics, edited by Martin Joos. 1958. Washington: American Council of Learned Societies, 1957, 32-37. Meaning and Dictionary Making by Nancy Freiberger, abstracted from Nida, Eugene A. 1958. Analysis of Meaning and Dictionary Making, IJAL 24.279-92. Mazateco Whistle Speech by Nancy Freiberger, abstracted from Cowan, George M. 1948. Mazateco Whistle Speech, Language 24.280-86. Voiceless Vowels in Comanche by Bob Beadle, abstracted from Canonge, Elliot D. 1957. Voiceless Vowels in Comanche, IJAL, 23.63-67. Noun Possession in Villa Alta Zapotec by Gwen Young, abstracted from Mary Leal and Otis Leal, 1954. Noun Possession in Villa Alta Zapotec, IJAL 20.215-216. Sound Patterns by Richard Bergman, abstracted from Sapir, Edward. 1925. Sound Patterns in Language. Language, 1.37-51

Does the extended Glasgow Outcome Scale add value to the conventional Glasgow Outcome Scale?

The Glasgow Outcome Scale (GOS) is firmly established as the primary outcome measure for use in Phase III trials of interventions in traumatic brain injury (TBI). However, the GOS has been criticized for its lack of sensitivity to detect small but clinically relevant changes in outcome. The Glasgow Outcome Scale-Extended (GOSE) potentially addresses this criticism, and in this study we estimate the efficiency gain associated with using the GOSE in place of the GOS in ordinal analysis of 6-month outcome. The study uses both simulation and the reanalysis of existing data from two completed TBI studies, one an observational cohort study and the other a randomized controlled trial. As expected, the results show that using an ordinal technique to analyze the GOS gives a substantial gain in efficiency relative to the conventional analysis, which collapses the GOS onto a binary scale (favorable versus unfavorable outcome). We also found that using the GOSE gave a modest but consistent increase in efficiency relative to the GOS in both studies, corresponding to a reduction in the required sample size of the order of 3–5%. We recommend that the GOSE be used in place of the GOS as the primary outcome measure in trials of TBI, with an appropriate ordinal approach being taken to the statistical analysis

Learning to Teach About Ideas and Evidence in Science : The Student Teacher as Change Agent

A collaborative curriculum development project was set up to address the lack of good examples of teaching about ideas and evidence and the nature of science encountered by student teachers training to teach in the age range 11-16 in schools in England. Student and teacher-mentor pairs devised, taught and evaluated novel lessons and approaches. The project design required increasing levels of critique through cycles of teaching, evaluation and revision of lessons. Data were gathered from interviews and students' reports to assess the impact of the project on student teachers and to what extent any influences survived when they gained their first teaching posts. A significant outcome was the perception of teaching shifting from the delivery of standard lessons in prescribed ways to endeavours demanding creativity and decision-making. Although school-based factors limited newly qualified teachers' chances to use new lessons and approaches and therefore act as change-agents in schools, the ability to critique curriculum materials and the recognition of the need to create space for professional dialogue were durable gains

The Vehicle, Fall 1985

Vol. 27, No. 1 Table of Contents Satchel AssMichael D. Smithpage 3 PhotoDoug Andersonpage 7 CounselingChristy Dunphypage 8 Grave SiteJay D. Fiskpage 8 Sight-Seeing Outside PhoenixBob Zordanipage 9 PerformanceDan Von Holtenpage 10 NightmareKandy Bellpage 10 Photo (The Loft)Lawrence McGownpage 11 LaboringJanet Gracepage 12 Blood DonorDan Von Holtenpage 13 Photo (Pier)Lawrence McGownpage 14 ExamplesChristopher Albinpage 14 Three PoemsPatrick Peterspage 15 Sometimes I Dream in Cotton CandyKathy Graypage 16 One Day While BoatingF. Link Rapierpage 17 DepartureBob Zordanipage 17 140 Print That\u27s Life Peter Dowlingpage 18 Photo (Around the Bend)Mike Freckerpage 20 Light ConversationDan Hintzpage 22 She Waits For the WorldJim Harrispage 22 HoneyKathy Graypage 23 Photo AlbumPatrick Peterspage 24 Photo (Stairs)Lawrence McGownpage 25 Fallen From Grace to SaturdayF. Link Rapierpage 26 Post MortemF. Link Rapierpage 27 ConfessionJohn Kayserpage 27 Child\u27s PlayChristopher Albinpage 27 Seeking A Friend\u27s Advice on DietingKathy Graypage 28 PhotoDoug Andersonpage 28 She Came Back to MeJim Harrispage 29 Farm BoyDiana Winsonpage 30 DilemmaJanet Wilhelmpage 31 In a Rock or StoneRichard Donnellypage 32 In November He Came To MeJean Kover Chandlerpage 33 EndingChristy Dunphypage 34 The Honor GradEddie Simpsonpage 35 Photo (Thirst)Mike Freckerpage 40https://thekeep.eiu.edu/vehicle/1046/thumbnail.jp

Uncomfortable truths - teamworking under lean in the UK

A recent contribution in this journal – Procter, S. and Radnor, Z. (2014) ‘Teamworking under Lean in UK public services: lean teams and team targets in Her Majesty’s Revenue and Customs (HMRC)’ International Journal of Human Resource Management, 25:21, 2978–2995 – provides an account of teamworking in the UK Civil Service, specifically Her Majesty’s Revenue and Customs (HMRC), focused on the relationship between recently implemented lean work organisation and teams and teamworking. Procter and Radnor claim in this work that it delivers a ‘more nuanced’ analysis of lean in this government department and, it follows, of the lean phenomenon more generally. Our riposte critiques their article on several grounds. It suffers from problems of logic and construction, conceptual confusion and definitional imprecision. Methodological difficulties and inconsistent evidence contribute additionally to analytical weakness. Included in our response are empirical findings on teamworking at HMRC that challenge Procter and Radnor’s evidential basis and further reveal the shortcomings of their interpretation

1966: Abilene Christian College Bible Lectures - Full Text

THE BIBLE TODAY Being the Abilene Christian College Annual Bible Lectures 1966 Price: $3.95 Published by ABILENE CHRISTIAN COLLEGE STUDENTS EXCHANGE ACC Station Abilene, Texa

Smoke gets in your eyes: re-reading gender in the "nostalgia film"

Upon its release, American Graffiti (George Lucas, 1973) was much admired by critics and audiences alike. Yet, in subsequent years, the film became known for its supposed “flattening of history,” and celebration of patriarchal values. This article demonstrates that such a judgement owes much to Fredric Jameson’s historically contingent work on postmodernism, which argues that American Graffiti constitutes the paradigmatic nostalgia film. In contrast, using close textual analysis, I demonstrate that American Graffiti provides a more complex construction of the past, and of gender, than has hitherto been acknowledged. Far from blindly idealising the early 1960s, the film interrogates the processes through which the period and its gender relations come to be idealised. This article has consequences not only for our understanding of Lucas’ seminal film, but also for the American New Wave, and the “nostalgia” text

Autonomous growth potential of leukemia blast cells is associated with poor prognosis in human acute leukemias

We have described a severe combined immunodeficiency (SCID) mouse model that permits the subcutaneous growth of primary human acute leukemia blast cells into a measurable subcutaneous nodule which may be followed by the development of disseminated disease. Utilizing the SCID mouse model, we examined the growth potential of leukemic blasts from 133 patients with acute leukemia, (67 acute lymphoblastic leukemia (ALL) and 66 acute myeloid leukemia (AML)) in the animals after subcutaneous inoculation without conditioning treatment. The blasts displayed three distinct growth patterns: "aggressive", "indolent", or "no tumor growth". Out of 133 leukemias, 45 (33.8%) displayed an aggressive growth pattern, 14 (10.5%) displayed an indolent growth pattern and 74 (55.6%) did not grow in SCID mice. The growth probability of leukemias from relapsed and/or refractory disease was nearly 3 fold higher than that from patients with newly diagnosed disease. Serial observations found that leukemic blasts from the same individual, which did not initiate tumor growth at initial presentation and/or at early relapse, may engraft and grow in the later stages of disease, suggesting that the ability of leukemia cells for engraftment and proliferation was gradually acquired following the process of leukemia progression. Nine autonomous growing leukemia cell lines were established in vitro. These displayed an aggressive proliferation pattern, suggesting a possible correlation between the capacity of human leukemia cells for autonomous proliferation in vitro and an aggressive growth potential in SCID mice. In addition, we demonstrated that patients whose leukemic blasts displayed an aggressive growth and dissemination pattern in SClD mice had a poor clinical outcome in patients with ALL as well as AML. Patients whose leukemic blasts grew indolently or whose leukemia cells failed to induce growth had a significantly longer DFS and more favorable clinical course