1,706 research outputs found
Asymptotic Confidence Regions for Kernel Smoothing of a Varying Coefficient Model with Longitudinal Data
No full text
John in Canterbury.
No full textLower centre (l.c.) with brush: McCahon August ’59; u.l. - c.r. with brush: God, it is all dark. The heart beat but there is no answering hark of a hearer and no-one to speak; l.r. with brush: John in Canterbury; verso: Colin McCahon No 36 August 59 John in Canterbury Butex 30 gns
Smoothing Spline Estimation for Varying Coefficient Models with Repeatedly Measured Dependent Variable
No full textLongitudinal samples, i.e., datasets with repeated measurements over time, are common in biomedical and epidemiological studies such as clinical trials and cohort observational studies. An exploratory tool for the analyses of such data is the varying coefficient model Y(t)= = X[t](t)β(t) + ε(t), where Y(t) and X(t) = (X[(0)](t),...,X[(k)](t))[T] are the response and covariates at time t, β(t) = (β[0](t),...,β[k](t))[T] are smooth coefficient curves of t and e(t) is a mean zero stochastic process. A special case that is of particular interest in many situations is data with time-dependent response and time-independent covariates. We propose in this article a componentwise smoothing spline method for estimating β[0](t),...,β[k](t) nonparametrically based on the previous varying coefficient model and a longitudinal sample of (t, Y(t), X) with time-independent covariates X = (X[(0)],... X[(k)])[T] from n independent subjects. A leave-one-subject-out cross-validation is suggested to choose the smoothing parameters. Asymptotic properties of our spline estimators are developed through the explicit expressions of their asymptotic normality and risk representations, which provide useful insights for inferences. Applications and finite sample properties of our procedures are demonstrated through a longitudinal sample of opioid detoxification and a simulation study
Te tangi o te pipiwhararua. (The song of the shining cuckoo) from a poem by Tangirau Hotere.
No full textThis is one of McCahon's major works of the mid-1970s, along with the Urewera Mural, the Blind series, and the Parihaka Triptych. It has several motivations and triggers. The primary one is the shining cuckoo's song, spoken of in a Maori poem passed on to McCahon by Ralph Hotere who got it from his father. Such gifts often produced an 'answering hark' from McCahon. In this instance he combined the words of the song with several other strands of sign and image - Roman numerals, window frames, misted landscapes in white, gray and pale lemon, abstract panels a la Mark Rothko in his sombre phase. Other elelments come in to play through the talk around the painting. McCahon said he painted it as a memorial for three recently dead poet friends, R.A.K. Mason, Charles Brasch and James K. Baxter. Critics have pointed out the mixture of Maori, Classical and Christian elements, the latter being carried by the numbers 1 to 14, the number of stations of the cross in Catholic liturgy and a major McCahon motif, especially in the mid-1960s. Caselberg wrote an essay 'Colin mcCahon's Panels, "The Song of the Shining Cuckoo'", published in Islands 18 (1977), along with various texts and facsimiles. McCahon gave the work to the Hocken Library as a memorial to his poet friends. This is made explicit in a letter to John Caselberg: It should be at Hocken. Could you see to this & if Hocken should want to make it a gift, for gifts: to Baxter, Mason, Brasch, please, do. When I start painting for myself I'll die.Through image, panel 1 with brush: I II Tuia Tui; margin below panel 1 with brush: Tuia tui; through image, panel 2 with brush: II IV V VI Tahia, tahia, kotahi te manu i tau ki te tahuna; through image panel 3 with brush: VII VIII; u.c. panel 3 with brush: Te tangi o te pipiwhararua. Tangirau Hotere; margin below panel 3 with brush:Tau mai; through image panel 4 with brush: IX X XI; margin below panel 4 with brush: Tau mai; through image panel 5 with brush: XII XIII XIV; margin below panel 5 with brush: Tau mai. C. McC, Oct í74
Orbit design for future SpaceChip swarm missions in a planetary atmosphere
No full textThe effect of solar radiation pressure and atmospheric drag on the orbital dynamics of satellites-on-a-chip (SpaceChips) is exploited to design equatorial long-lived orbits about the oblate Earth. The orbit energy gain due to asymmetric solar radiation pressure, considering the Earth's shadow, is used to balance the energy loss due to atmospheric drag. Future missions for a swarm of SpaceChips are proposed, where a number of small devices are released from a conventional spacecraft to perform spatially distributed measurements of the conditions in the ionosphere and exosphere. It is shown that the orbit lifetime can be extended and indeed selected through solar radiation pressure and the end-of-life re-entry of the swarm can be ensured, by exploiting atmospheric drag
Oregon statewide status and trends report
No full textReport -- Appendix A. Black Rock Desert-Humboldt -- Appendix B. Columbia River -- Appendix C. Deschutes -- Appendix D. Goose Lake -- Appendix E. Grande Ronde -- Appendix F. John Day -- Appendix G. Klamath -- Appendix H. Malheur -- Appendix I. Mid Coast -- Appendix J. Middle-Columbia-Hood -- Appendix K. North Coast-Lower Columbia -- Appendix L. Oregon Closed Basins -- Appendix M. Owyhee -- Appendix N. Powder-Burnt -- Appendix O. Rogue -- Appendix P. Sandy -- Appendix Q. Snake River -- Appendix R. South Coast -- Appendix S. Umatilla-Walla Walla-Willow -- Appendix T. Umpqua -- Appendix U. Willamette.prepared by: Colin Donald and Ryan Michie.Title from PDF cover (viewed on November 4, 2022).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Oregon statewide status and trends report
No full textChapter 1-3. Introduction and Methods -- Chapter 4-5. Results and Citations -- Appendix A. Black Rock Desert-Humboldt -- Appendix B. Columbia River -- Appendix C. Deschutes -- Appendix D. Goose Lake -- Appendix E. Grande Ronde -- Appendix F. John Day -- Appendix G. Klamath -- Appendix H. Malheur -- Appendix I. Mid Coast -- Appendix J. Middle-Columbia-Hood -- Appendix K. North Coast-Lower Columbia -- Appendix L. Oregon Closed Basins -- Appendix M. Owyhee -- Appendix N. Powder-Burnt -- Appendix O. Rogue -- Appendix P. Sandy -- Appendix Q. Snake River -- Appendix R. South Coast -- Appendix S. Umatilla-Walla Walla-Willow -- Appendix T. Umpqua -- Appendix U. Willamette.prepared by: Colin Donald, Yuan Grund, and Ryan Michie.Title from PDF cover (viewed on October 27, 2020).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Oregon statewide status and trends report
No full textReport -- Appendix A. Black Rock Desert-Humboldt -- Appendix B. Columbia River -- Appendix C. Deschutes -- Appendix D. Goose Lake -- Appendix E. Grande Ronde -- Appendix F. John Day -- Appendix G. Klamath -- Appendix H. Malheur -- Appendix I. Mid Coast -- Appendix J. Middle-Columbia-Hood -- Appendix K. North Coast-Lower Columbia -- Appendix L. Oregon Closed Basins -- Appendix M. Black Owyhee -- Appendix N. Powder-Burnt -- Appendix O. Rogue -- Appendix P. Sandy -- Appendix Q. Snake River -- Appendix R. South Coast -- Appendix S. Umatilla-Walla Walla-Willow -- Appendix T. Umpqua -- Appendix U. Willamette.prepared by: Colin Donald, Ryan Michie, and Yuan Grund.Title from PDF cover (viewed on March 20, 2020).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
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