3,643 research outputs found
RETRACTED – See Author Note - Validation of Crawford’s Postulate: Quantum Collapse Dynamics (v1.51)
No full textUpdated Author Note – May 2025
This paper represents an early attempt to model quantum collapse within the EiG (Energy–information Gradient) framework. While the formulation was internally consistent, I have since identified key flaws in the simulation methodology—particularly in how photon dynamics were represented across discernibility gradients.
As a result, the core conclusion of this manuscript is no longer considered valid. However, the process of developing and testing this model directly led to several foundational insights now informing an updated field theory of light, discernibility, and time—Now available here: https://osf.io/uwn2e
I’ve chosen to leave this paper online as part of an open research process. Future readers should interpret it as an early step in an ongoing effort to model physical reality from first principles under the EiG framework.
— Jason Crawfor
Ionosphere redistribution during strong geomagnetic storms as detected by the CHAMP, SAC-C, TOPEX and Jason-1 satellites
No full textIonosphere response to severe geomagnetic storms that occurred in 2001-2003 was analyzed using data of global ionosphere maps (GIM), altimeter data from the Jason-1 and TOPEX satellites, and data of GPS receivers onboard CHAMP and SAC-C satellites. This allowed us to study in detail ionosphere redistribution due to geomagnetic storms, dayside ionospheric uplift and overall dayside TEC increase. It is shown that after the interplanetary magnetic field turns southward and intensifies, the crests of the equatorial ionization anomaly (EIA) travel poleward and the TEC value within the EIA area increases significantly (up to ～50%). GPS data from the SAC-C satellite show that during the main phase of geomagnetic storms TEC values above the altitude of 715 km are 2-3 times higher than during undisturbed conditions. These effects of dayside ionospheric uplift occur owing to the > and last few hours while the enhanced interplanetary electric field impinged on the magnetopause
Retracted article: Students' learning styles and academic performance in Readings in Philippine History: Basis for a proposed course syllabus enhancement
No full textThe article entitled “Students’ learning styles and academic performance in Readings in Philippine History: Basis for a proposed course syllabus enhancement” (Volume 4, Issue 1, December 2022, pp. 45-51) written by Adrian Ote, Margie M. Lepangge, Nobelen Joy M. Marsonia, Sheena Joy C. Pagran, Jennilyn C. Se, and Jason A. Romero has been retracted at the request of the Corresponding Author
Oregon Commerce and Compliance Division safety action plan, final report
No full textby Jason C. Anderson (Ph.D., Research Associate, Portland State University) and Sal Hernandez (Ph.D., Associate Professor, Oregon State University) and Doug Hedlund (MBA, Hedlund Consulting, LLC) for Oregon Department of Transportation Commerce and Compliance Division.Title from PDF cover (viewed on February 10, 2021).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 (page 39).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Book Reviews
No full textLynch, Caitrin & Danely, Jason, Eds. Transitions & Transformation: Cultural Perspectives on Aging and the Life Course Renee Rose Shield
Chang, Heewon, Faith Wambura Ngunjiri, and Kathy-Ann C. Hernandez. Collaborative Autoethnography Richard Zimmer
Ulsperger, Jason S. and Knottnerus, J. David. Elder Care Catastrophe: Rituals of Abuse in Nursing Homes & What You Can Do About It Diane L. Brown
Sanjek, Roger. Gray Panthers Lindsay DuBois
Haber, David. Health Promotion and Aging: Practical Application for Health Professionals. Jennifer Wagne
Landslide risk reduction in Wasco County, Oregon
No full textby William J. Burns, Nancy Calhoun, Jon Franczyk, Jason D. McClaughry, and Katherine Daniel.Title from PDF cover (viewed on February 27, 2023).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 (pages 20-24).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
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Aldolase-catalyzed synthesis of chiral organofluorines
No full textFluorine is a critically important element for the design of safe and effective drugs in the modern pharmaceutical industry. As the field of synthetic methodology for fluorination of organic compounds has flourished, biocatalysis has also been rapidly adopted as a means to achieve high reaction selectivity and process sustainability. However, the areas of biocatalysis and fluorine chemistry have rarely intersected directly, owing to the rarity of fluorine-processing enzymes in Nature. We envision that this methodology gap can be bridged by the action of carbon-carbon bond forming enzymes upon non-native fluorinated substrates, thus transforming simple organofluorine building blocks into more complex organofluorines. In this dissertation, we describe the application of enzymatic aldol addition to fluoro-aldol reactions that furnish value-added organofluorine products bearing fluorine stereocenters. Our development of a novel platform for biocatalytic organofluorine synthesis began with the discovery that Type II pyruvate aldolases of the HpcH family use fluoropyruvate as an alternative nucleophilic substrate. After studying the stereoselectivity, kinetics, and mechanism of the fluoropyruvate aldol reaction, the afforded products were converted to diversely functionalized organofluorines through downstream reactions. Next, the HpcH system was expanded beyond fluoropyruvate to generalized β-fluoro-α-ketoacids as nucleophiles. The investigation of these challenging substrates, aided by rational active site engineering, resulted in the first synthesis of tertiary fluorides via biocatalytic C-C bond formation. Usefulness of the HpcH platform was demonstrated with preparative syntheses of products relevant to drug fragments and bioactive natural products. Finally, we studied Type I aldolases with the unique ability to use simple aldehydes and ketones as nucleophiles. Their activity on fluorinated ketones may enable the efficient synthesis of fluorinated sugars, which are applicable to pharmaceuticals and chemical biology. Taken together, this dissertation delineates a selective and sustainable biocatalytic approach to access the unique properties conferred by fluorination, which may have broad implications for improved process design towards important organofluorines
The number of degree sequences of graphs
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 2007.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Includes bibliographical references (leaves 60-62).We give nontrivial upper and lower bounds for the total number of distinct degree sequences among all simple, unlabeled graphs on n vertices (graphical partitions on n vertices). Our upper bound is ... for some constant C, and improvement of ... over the trivial upper bound which is asymptotic to ... Our lower bound is ..., and improvement of ... over the trivial lower bound which is asymptotic to ...by Jason Matthew Burns.Ph.D
Kinematics and thermodynamics of a midlatitude, continental mesoscale convective system and its mesoscale vortex
No full textAlso issued as author's dissertation (Ph.D.) -- Colorado State University, 2001.The author examines a mesoscale convective system (MCS) and the mesoscale convective vortex (MCV) it generated. The MCS, which comprised a leading convective line and trailing stratiform region, traversed Kansas and Oklahoma on 1 August 1996, passing through the NOAA Wind Profiler Network, as well as four sites from which soundings were being taken every three hours during a field project. The unusually rich data set permitted study of the MCS and MCV over nine hours on scales between those of operational rawinsondes and Doppler radars. The author used a spatial bandpass filter to divide observed wind into synoptic and mesoscale components. The environment-relative, mesoscale wind contained an up- and downdraft and divergent outflows in the lower and upper troposphere. The mesoscale wind was asymmetric about the MCS, consistent with studies of gravity waves generated by heating typical of that in many MCSs. According to a scale-discriminating vorticity budget, both the synoptic and mesoscale winds contributed to the prominent resolved sources of vorticity in the MCV: tilting and convergence. Unresolved sources were also large. The author speculates that an abrupt change in the main source of vorticity in an MCV may appear as an abrupt change in its altitude of maximum vorticity. Distributions of temperature and humidity in the MCS were consistent with its mesoscale circulations. In the terminus of the mesoscale downdraft, advection of drier, potentially warmer air exceeded humidifying and cooling from rain, so profiles of temperature and dewpoint exhibit onion and double-onion patterns. The mesoscale updraft was approximately saturated with a moist adiabatic lapse rate. Mesoscale drafts. and convective drafts vertically mixed the troposphere, partially homogenizing equivalent potential temperature. The MCV contained a column of high potential vorticity in the middle troposphere, with a cold core below the freezing level and a warm core above-a pattern characteristic of profiles of heating by stratiform regions. The cold core was 2 km too shall w to be in pure gradient balance with wind in the MCV. Ongoing forcing during the observed lifetime of the MCV may have prevented it from achieving balance, even if that was its tendency.Sponsored by the National Science Foundation under grants ATM-0071371 and ATM-9618684; and NASA grant NCCS-288
Geologic assessment of potential cable landing sites along the Oregon coast
No full textReport -- Plate 1. Detailed geology and other factors related to the suitability of potential cable landing sites in the Gold Beach area, southern Oregon -- Plate 2. Detailed geology and other factors related to the suitability of potential cable landing sites in the Rockaway Beach area, northern Oregon.by Reed J. Burgette, Eduardo F. Guerrero, Jonathan C. Allan, Fletcher E. O'Brien, Jason D. McClaughry, Lowell H. Anthony, Robert W. Hairston-Porter, and Jon J. Franczyk.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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