642 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
Assessing the George W. Bush Presidency: A Tale of Two Terms
No full textIn one of the first volumes assessing the full two terms of the George W. Bush presidency, Wroe and Herbert have gathered the work of leading American and European scholars. In fifteen succinct and incisive chapters, authorities such as Jim Pfiffner, John Maltese, Graham Wilson and Alan Gitelson offer assessments of the Bush administration's successes and failures. Extensive attention is paid to Bush's foreign policy, including 'The War on Terror' but the focus is broadened to absorb not only the Bush Doctrine and its repercussions, but also his trade and homeland security policies. The president's domestic leadership in economics and social policy is investigated, as are his dealings as president with the other institutions of the U.S. political system. The result is a comprehensive guide to the Bush presidency and its legacy
Environmental variables affect fungal diversity on blueberry (Vaccinium spp.) leaf surfaces:
No full textThe economically important blueberry, Vaccinium cyanococcus, is susceptible to a number of diseases, some of which are propagated by fungi living on the leaf surface. The leaf surface (phylloplane) is a cryptic environment that harbors a variety of pathogens and pathogen antagonists, and these populations are affected by many factors including weather, season, host plant location and leaf phenology. Blueberry leaves were collected in April, June, August, and October over two years from bushes in wild areas and cultivated farms along transects perpendicular to the Atlantic City Expressway, to address the hypothesis that pollution from a major highway would influence phylloplane communities. Leaves were washed and plated on potato dextrose agar, and fungal epiphytes were identified using taxonomic keys and microscopy. Epicoccum spp., Alternaria spp., Pennicilium spp., and Curvularia spp. were the most ubiquitous fungi isolated from blueberry leaves. Community structure and species richness changed from site-to-site and month-to-month and from year-to-year. The influence of highway proximity to fungal communities was not significant. Management practices in cultivated sites accounted for much of the variation in species richness and community composition among sites. Leaf age also influenced the community structure of phylloplane fungi communities. Leaves collected in April had significantly lower species richness than those collect in later months (F=19.37, P<0.0001). Yearly differences in species richness and community structure were likely due to differences in meteorological variables. Greater information provided by frequency of occurrence of fungal species would lead to a more informative multivariate analysis as presence or absence would be weighted by abundance, allowing for interpretations of dominance and more detailed analysis of phylloplane fungal communities.M.S.Includes bibliographical references (p. 25-27)by Jason Stanwoo
Smooth compactness of f-minimal hypersurfaces with bounded f-index
No full textThe first author was supported by FAPEMIG and CNPq grants. The second author was
supported by Andr´e Neves’ ERC and Leverhulme trust grants. The third author was supported
by Jason D Lotay’s EPSRC grant
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
Erratum: Medication Adherence Reminder System for Virtual Home Assistants: Mixed Methods Evaluation Study (Jmir Form Res (2021)5:7 (E27327) Doi: 10.2196/27327)
No full textIn “Medication Adherence Reminder System for Virtual Home Assistants: Mixed Methods Evaluation Study” (JMIR Form Res 2021;5(7):e27327), three errors were noted. Due to a system error, the name of one author, Cynthia F Corbett, was replaced with the name of another author on the paper, Elizabeth M Combs. In the originally published paper, the order of authors was listed as follows: Elizabeth M Combs, Elizabeth M Combs, Peyton S Chandarana, Isabel Stringfellow, Karen Worthy, Thien Nguyen, Pamela J Wright, Jason M O\u27Kane This has been corrected to: Cynthia F Corbett, Elizabeth M Combs, Peyton S Chandarana, Isabel Stringfellow, Karen Worthy, Thien Nguyen, Pamela J Wright, Jason M O\u27Kane In the originally published paper, the ORCID of author Cynthia F Corbett was incorrectly published as follows: 0000-0002-2254-6958 This has been corrected to: 0000-0003-2706-2116 In the originally published paper, the email of the Corresponding Author was incorrectly published as follows: [email protected] This has been corrected to: [email protected] The correction will appear in the online version of the paper on the JMIR Publications website on January 27, 2022, together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories
Trans-Manhattan Expressway
No full textThesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2010.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Cataloged from student submitted PDF version of thesis.Includes bibliographical references (p. 127).Urban Infrastructure: bridges, expressways, and on and off ramps often create barriers and uninhabitable spaces within the urban context. This phenomenon is evident in northern Manhattan where the Trans-Manhattan Expressway has imposed profound divisions within the dense urban community of Washington Heights. Supporting a population of over one-hundred thousand, in 0.7 square miles, Washington Heights is one of the densest residential communities in Manhattan. Within this dense community no identifiable civic centers exist. However, the convergence of infrastructure and urbanism has the potential to synthesis new opportunities. This contemporary paradigm morphs existing infrastructure with new user-friendly architectural systems. This hybridization can alleviate the current asphyxiation associated with urban infrastructure, while transforming infrastructure to serve as a catalyst for urban life. This thesis seeks to readapt the Trans-Manhattan Expressway for public use through two strategic interventions. The first seeks to reclaim the colossal George Washington Bridge Bus Terminal from impervious infrastructure to central civic icon. The second transforms a series of urban impediments which produce excess noise and pollution, into a public plaza. While these two projects address the independent conditions of each site, together they simultaneously transform a desolate lineage of urban infrastructure into the central civic icon of Washington Heights.by Jason F. O'Koren.M.Arch
DNA fusion gene vaccination mobilizes effective anti-leukemic cytotoxic T lymphocytes from a tolerized repertoire
No full textThe majority of known human tumor-associated antigens derive from non-mutated self proteins. T cell tolerance, essential to prevent autoimmunity, must therefore be cautiously circumvented to generate cytotoxic T cell responses against these targets. Our strategy uses DNA fusion vaccines to activate high levels of peptide-specific CTL. Key foreign sequences from tetanus toxin activate tolerance-breaking CD4+ T cell help. Candidate MHC class Ibinding tumor peptide sequences are fused to the C terminus for optimal processing and presentation. To model performance against a leukemia-associated antigen in a tolerized setting, we constructed a fusion vaccine encoding an immunodominant CTL epitopederived from Friend murine leukemia virus gag protein (FMuLVgag) and vaccinated tolerant FMuLVgag-transgenic (gag-Tg) mice. Vaccination with the construct induced epitopespecificIFN-c-producing CD8+ T cells in normal and gag-Tg mice. The frequency and avidity of activated cells were reduced in gag-Tg mice, and no autoimmune injury resulted. However, these CD8+ T cells did exhibit gag-specific cytotoxicity in vitro and in vivo. Also, epitope-specific CTL killed FBL-3 leukemia cells expressing endogenous FMuLVgag antigen and protected against leukemia challenge in vivo. These results demonstrate a simple strategy to engage anti-microbial T cell help to activate epitope-specific polyclonal CD8+ T cell responses from a residual tolerized repertoire
Investigation of the gap vortex street in densely packed tube arrays in axial flow using CFD and experiments
No full textAxial flow in tube bundles with small pitch-to-diameter ratio, a geometry encountered in nuclear reactor cores and heat exchangers, often displays periodic fluctuations. A significant velocity discrepancy between the inter-cylinder gap and subchannel center originates from the difference in through-flow area, feeding an instability. As it is associated with velocity-shear, it is similar to the Kelvin-Helmholtz type and the term 'gap instability' is adopted. A vortex street arises and structural vibration of the cylinders might develop due to the fluctuating pressure. Numerical simulations of this phenomenon were performed. The computational domain was constructed to match the most important geometrical features of an experimental setup. The bundle consists of 7 steel tubes in triangular array, placed in a hexagonal conduit. A flexible segment made of silicone is embedded in the central tube, with both extremes clamped to the steel parts of the cylinder. In the experiment, data of the fluctuating velocity was gathered using laser Doppler anemometry measurements. As first step, a completely rigid structure was considered. Unsteady Reynolds-averaged Navier-Stokes (URANS) simulations were used to test if this particular geometry also triggers the gap vortex street, which was the case. The phenomenon clearly appears as oscillations of the velocity components. Subsequently, fluid-structure interaction (FSI) simulations, taking into account the flexible part, allowed to assess the effect of the fluctuating flow field on the structure. A comparison between one-way and two-way coupled simulations was made.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.RST/Reactor Physics and Nuclear Material
Particulars of My Life
No full textSkinner, B. F. Particulars of my life. New York: Alfred A. Knopf, 1976
Burrhus Frederic Skinner was an American psychologist, behaviorist, author, inventor, and social philosopher. He was a professor of psychology at Harvard University from 1958 until his retirement in 1974.
The 1st volume of Skinner\u27s autobiography takes him through childhood, adolescence, college, and life in New York\u27s Greenwich Village in the 1920s, when he was attempting to become a writer until at the age of 24 he gave up literature as a career and went to the graduate department of psychology at Harvard. - PsycINFO Database Record (c) 2016 APA, all rights reservedhttps://digitalcommons.rockefeller.edu/jason-brown-library/1043/thumbnail.jp
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