1,182 research outputs found
Singleton, Kenneth Douglas, VX41926
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/417159Surname: SINGLETON. Given Name(s) or Initials: KENNETH DOUGLAS. Military Service Number or Last Known Location: VX41926. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 46971.239853
Item: [2016.0049.49420] "Singleton, Kenneth Douglas, VX41926
The Parametric Singleton Design Pattern
No full textThe parametric singleton design pattern combines the singleton design pattern with a parameter that enables unique creation of instances of a class. These instances are cached in a table. When a user asks for an instance with these parameters, the table is checked and instances are created conditionally. Lazy instantiation is not new, nor, for that matter, is the singleton design pattern. However, parametric lazy instantiation is new and so is the parametric singleton
Minimal lengths in 3D via the generalized uncertainty principle
No full textWe investigate an extension of the Generalized Uncertainty Principle (GUP) in three dimensions by modifying the three dimensional position and momentum operators in a manner that remains coordinate-independent and retains as much of the standard position-momentum commutators as possible. Moreover, we bound the physical momentum which leads to an effective minimal length in every coordinate direction. The physical consequences of these modified operators are explored in two scenarios: (i) when a spherically-symmetric wave function is ‘compressed’ into the smallest possible volume; (ii) when the momentum is directed in a single direction. In case (ii), we find that the three dimensional GUP exhibits interesting phenomena that do not occur in one dimension: the minimal distance in the direction parallel to a particle's momentum is different from the minimal distance in the orthogonal directions
Reply to "Comment on 'Inflation with a graceful exit and entrance driven by Hawking radiation' "
No full textThe Comment [J. T. Firouzjaee, preceding Comment, Phys. Rev. D 89, 068301 (2014)] raises two points in regard to our paper [S. K. Modak and D. Singleton, Phys. Rev. D 86, 123515 (2012)]. The first is that one cannot use the tunneling picture to obtain the temperature and particle production rate in the Friedman-Robertson-Walker space-time. The second comment raised by Firouzjaee is that the Hawking-like radiation model for inflation presented in [Modak and Singleton; S. K. Modak and D. Singleton, Int. J. Mod. Phys. D 21, 1242020 (2012)] is inconsistent with the observed scalar and tensor perturbation spectrum. We show that the first comment is beside the point-we do not use the tunneling method in our papers [Modak and Singleton; Modak and Singleton]. The second criticism by Firouzjaee comes from the author evaluating quantities at different times-he evaluates the parameters of our model at the beginning of inflation and then compares this with the scalar and tensor perturbations evaluated at the horizon exit point.From Physical Review D, Vol.89(6), 68302, available online: http://dx.doi.org/10.1103/PhysRevD.89.068302. Copyright ©2014 by American Physical Society.Publisher version: https://doi.org/10.1103/PhysRevD.89.06830
De Fast-Fourier Transform: Het gebruik van de routine van R.C. Singleton
No full textDoel van dit rapport is de lezer inzicht te verschaffen in het gebruik van de FFT-routine van R.C. Singleton zoals die in het rekencentrum van de T.H. - Delft in gebruik is. Voor een beschrijving van de werking van deze routine wordt verwezen naar het in de literatuurlijst vermelde artikel van Singleton (Lit. 1). Met nadruk wordt erop gewezen dat er meerdere FFT-routines in omloop zijn die alle anders werken en daarom in gebruik kunnen verschillen. Het onderhavige rapport beschrijft uitsluitend het gebruik van de routine van Singleton. Als laatste punt in deze inleiding wordt speciaal het boek van Brigham genoemd (Lit. 2) waarin zeer veel informatie te vinden is over het gebruik van de FFT-methodeHydraulic EngineeringCivil Engineering and Geoscience
Difference in the D-dimer rise between women with singleton and multifetal pregnancies
No full textIntroduction: The differences in the D-dimer rise between women with singleton and multifetal pregnancies have not been studied extensively. Materials and Methods: D-Dimer levels were determined in 1089 blood specimens from 1089 women in various stages of pregnancy, including 977 and 112 women with singleton and multifetal pregnancies, respectively. None of the 1089 women developed hypertension or clinical venous thromboembolism during pregnancy or in the postpartum period. Results: The D-dimer levels were significantly and positively correlated with gestational week at examination in women with singleton or multifetal pregnancies. The D-dimer levels (mu g/ml, mean +/- SD [number of specimens]) determined at the 1st trimester did not differ significantly (0.81 +/- 0.82 [102] for singleton vs. 1.20 +/- 0.77 [7] for multifetal), but those at the 2nd (1.61 +/- 1.45 [216] vs. 2.62 +/- 2.26 [59]) and 3rd (2.37 +/- 2.22 [659] vs. 4.02 +/- 2.14 [46]) trimesters were significantly higher in women with multifetal than singleton pregnancies. The 90th percentile value was 4.31 mu g/ml for 1089 specimens. A significantly greater number of women exceeded 4.31 mu g/ml during the 2nd (16.9% vs. 5.6%, P = 0.0043) and 3rd (34.8% vs. 10.6%, P < 0.0001) trimesters among those with multifetal than with singleton pregnancies. Conclusions: The degree of D-dimer rise in pregnancy was greater in women with multifetal than with singleton pregnancies. (C) 2013 Elsevier Ltd. All rights reserved
Coagulation-fibrinolysis is more enhanced in twin than in singleton pregnancies
No full textAims: To examine whether coagulation-fibrinolysis in late pregnancy in women with twin pregnancies is more pronounced than in women with singleton pregnancies.
Patients and methods: The plasma levels of D-dimer, fibrinogen/fibrin degradation products (FDP), and fibrinogen, the platelet count, and the antithrombin activity were assessed from 3 weeks before delivery until postpartum day 7 in 48 women (24 singleton and 24 twin pregnancies) without preeclampsia who underwent cesarean sections.
Results: Women with singleton or twin pregnancies gave birth at 37.3±1.2 weeks or 35.2±1.4 weeks, respectively. Compared with singleton mothers, prenatal D-dimer and FDP levels were consistently and significantly higher among women with twin pregnancies. A significantly larger proportion of twin mothers exhibited prenatal levels of D-dimer >5.0 μg/mL, FDP >10.0 μg/mL, fibrinogen <420 mg/mL and antithrombin activity <70%. In addition, prenatal antithrombin activity in plasma was significantly lower.
Conclusions: Coagulation-fibrinolysis is more enhanced in women with twin gestation than in women with singleton gestation
Harry H. Singleton.II, a warrior as activist: racism in Horry county, South Carolina , 1965-2005, 2009
No full textThis historical narrative examined the impact of institutional and individual racism during the Post Civil Rights Era by analyzing the life and work of minister, businessman, and educator, Reverend Harry H. Singleton, II of Horry County. South Carolina. Special attention was given to Singletons role in the integration of Horry County Public Schools. the Conway High School football boycott, and his work as a civil rights leader with the National Association for the Advancement of Colored People (NAACP). Further, incidents in Singletons life and career as a civil rights activist reflect the legal support of district courts in South Carolina. particularly in the case of Harry H. Singleton v. Horry County Board of Education. Based on the research, Singletons life is reflective of an African-American leader whose contributions to race relations on the grassroots level was indicative of his life experiences growing up in Edgefield. South Carolina and his commitment to correcting racism in Horry County, South Carolina from 1965 to 2005
Constructing Cooperation
No full textIn a pathbreaking analysis, Sara Singleton explores the development of schemes for the management of fisheries in the northwestern United States in which native American tribes, and state, federal, and local governments cooperate to manage limited fishing resources. In the policy dispute over the apportionment of scarce resources, some argue that only government control or private ownership will prevent the destruction of limited common resources. The author shows how cooperation among interested parties can produce a workable system for self-management of common resources. Through the detailed study of the management of fisheries in the Northwest the author tests theories explaining the basis of collective action and social cooperation, an area of rich theoretical speculation in political science, law, economics and sociology. At the same time, her findings have important implications for policy makers who are interested in efficient and effective schemes of resource control that avoid the problems caused by regulation by remote government officials or private control. This book will appeal to policy makers concerned with the management of natural resources as well as to economists, political scientists, and sociologists concerned with collective action problems. Sara Singleton is Assistant Professor of Political Science, Tulane University
Experimental Tests of Quantum Gravity and Exotic Quantum Field Theory Effects
No full textPhysics at its core is an experimental pursuit. If one theory does not agree with experimental results, then the theory is wrong. However, it is becoming harder and harder to directly test some theories of fundamental physics at the high energy/small distance frontier exactly because this frontier is becoming technologically harder to reach. The Large Hadron Collider is getting near the limit of what we can do with present accelerator technology in terms of directly reaching the energy frontier. The motivation for this special issue was to try and collect together ideas and potential approaches to experimentally probe some of our ideas about physics at the high energy/small distance frontier. Some of the papers in this special issue directly deal with the issue of what happens to spacetime at small distance scales. In the paper by A. Aurilia and E. Spallucci a picture of quantum spacetime is given based on the effects of ultrahigh velocity length contractions on the structure of the spacetime. The work of P. Nicolini et al. further pursues the idea that spacetime has a minimal length. The consequences of this minimal length are investigated in terms of the effects it would have on the gravitational collapse of a star to form a black hole. In the article by G. Amelino-Camelia et al. the quantum structure of spacetime is studied through the Fermi LAT data on the Gamma Ray Burst GRB130427A. The article by S. Hossenfelder addressed the question of whether spacetime is fundamentally continuous or discrete and postulates that in the case when spacetime is discrete it might have defects which would have important observational consequences. ..
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