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Title:

Prof. D.J. du Plessis - 'n Terugblik

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’n Groenslang (dit is ek) stap skoorvoetend vanaf Heimat in die rigting van die Universiteit, d.w.s. die hoofgebou en enigste gebou. Sy pad gaan tussen vier, nogal nie te bouvallige, lang plat sinkgeboue deur.

’n Groenslang (dit is ek) stap skoorvoetend vanaf Heimat in die rigting van die Universiteit, d.w.s. die hoofgebou en enigste gebou. Sy pad gaan tussen vier, nogal nie te bouvallige, lang plat sinkgeboue deur. Minimize

Publisher:

AOSIS OpenJournals

Year of Publication:

1960-03-01T00:00:00Z

Document Type:

article

Language:

English ; Afrikaans

Subjects:

LCC:Christianity ; LCC:BR1-1725 ; LCC:Philosophy. Psychology. Religion ; LCC:B ; DOAJ:Religion ; DOAJ:Philosophy and Religion ; LCC:General Works ; LCC:A ; DOAJ:Multidisciplinary ; DOAJ:General Works ; LCC:Christianity ; LCC:BR1-1725 ; LCC:Philosophy. Psychology. Religion ; LCC:B ; DOAJ:Religion ; DOAJ:Philosophy and Religion ; LCC:General Works...

LCC:Christianity ; LCC:BR1-1725 ; LCC:Philosophy. Psychology. Religion ; LCC:B ; DOAJ:Religion ; DOAJ:Philosophy and Religion ; LCC:General Works ; LCC:A ; DOAJ:Multidisciplinary ; DOAJ:General Works ; LCC:Christianity ; LCC:BR1-1725 ; LCC:Philosophy. Psychology. Religion ; LCC:B ; DOAJ:Religion ; DOAJ:Philosophy and Religion ; LCC:General Works ; LCC:A ; DOAJ:Multidisciplinary ; DOAJ:General Works ; LCC:Christianity ; LCC:BR1-1725 ; LCC:Philosophy. Psychology. Religion ; LCC:B ; LCC:General Works ; LCC:A ; LCC:Christianity ; LCC:BR1-1725 ; LCC:Philosophy. Psychology. Religion ; LCC:B ; LCC:General Works ; LCC:A Minimize

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http://www.koersjournal.org.za/index.php/koers/article/view/1585

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Title:

Selenium and the prostate

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Evidence accrued over the last decade has supported an association between low serum selenium (Se) andincreased incidence of prostate cancer in older men. Accordingly, questions and inquiry arose as to whether adietary supplementation might afford protection, or delay disease progression. Indeed, a very large nationalstudy, Selenium and Vitamin ...

Evidence accrued over the last decade has supported an association between low serum selenium (Se) andincreased incidence of prostate cancer in older men. Accordingly, questions and inquiry arose as to whether adietary supplementation might afford protection, or delay disease progression. Indeed, a very large nationalstudy, Selenium and Vitamin E Cancer Prevention Trial (SELECT), to explore the potential benefits of adaily supplement of 200 microgram Se, or 400 I.U. of vitamin E, or both, is underway: the National CancerInstitute anticipates a total enrolment of 32,400 men and durations of 7 to 12 years for individual participants.It is remarkable that at the time of the trial’s activation in 2001 nothing was known about the concentration ofSe in the target organ or whether any Se in a dietary supplement found its way to the prostate gland. Later,our laboratory published the first benchmark values, which indicated that the prostate is reasonably wellendowed with Se and that the concentration in one subject, who had undergone self-medication at 200microgram Se per day, was about twice the average for the others. This review explores the ramifications ofthese and subsequent data for SELECT and other trials, together with observations on dose and generalmechanisms of Se interference with the development of prostate cancer. Minimize

Publisher:

University of South Bohemia

Year of Publication:

2005-05-01T00:00:00Z

Document Type:

article

Language:

English

Subjects:

Selenium ; prostate ; cancer ; supplementation trials ; LCC:Medicine (General) ; LCC:R5-920 ; LCC:Medicine ; LCC:R ; DOAJ:Medicine (General) ; DOAJ:Health Sciences ; LCC:Medicine (General) ; LCC:R5-920 ; LCC:Medicine ; LCC:R ; DOAJ:Medicine (General) ; DOAJ:Health Sciences

Selenium ; prostate ; cancer ; supplementation trials ; LCC:Medicine (General) ; LCC:R5-920 ; LCC:Medicine ; LCC:R ; DOAJ:Medicine (General) ; DOAJ:Health Sciences ; LCC:Medicine (General) ; LCC:R5-920 ; LCC:Medicine ; LCC:R ; DOAJ:Medicine (General) ; DOAJ:Health Sciences Minimize

DDC:

170 Ethics *(computed)*

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http://www.zsf.jcu.cz/jab/3_2/arnold.pdf

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Title:

Labor and Population Labor Mobility and Economic Opportunity. By E. Wight Bakke, Philip M. Hauser, Gladys L. Palmer, Charles A. Myers, Dale Yoder, Clark Kerr. Preface by Paul Webbink. New York: Technology Press and John Wiley and Sons, Inc., 1954. Pp. vi, 118. $3.50.

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article

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Title:

Kann Amerika eine Depression vermeiden?

Source:

Tolles, N. Arnold;: Zeitschrift für die gesamte Staatswissenschaft. 111 1955

Tolles, N. Arnold;: Zeitschrift für die gesamte Staatswissenschaft. 111 1955 Minimize

Document Type:

Text

Subjects:

330.Economics

330.Economics Minimize

Rights:

MohrSiebeck ; DigiZeitschriften Abo ; Law ; Economics

MohrSiebeck ; DigiZeitschriften Abo ; Law ; Economics Minimize

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Zeitschrift für die gesamte Staatswissenschaft.

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Title:

Spendable earnings of factory workers, 1941-43, by N. Arnold Tolles .

Description:

ii, 14 p.

ii, 14 p. Minimize

Publisher:

Washington, U.S. Govt. print. off.

Year of Publication:

1944.

Source:

http://hdl.handle.net/2027/coo.31924014546521

http://hdl.handle.net/2027/coo.31924014546521 Minimize

Document Type:

text

Language:

eng

Subjects:

Wages--United States

Wages--United States Minimize

Rights:

We have determined this item to be in the public domain according to US copyright law through information in the bibliographic record and/or US copyright renewal records. We are uncertain of its copyright status outside the US. The digital version is available for all educational uses within the United States. Please contact HathiTrust staff at ...

We have determined this item to be in the public domain according to US copyright law through information in the bibliographic record and/or US copyright renewal records. We are uncertain of its copyright status outside the US. The digital version is available for all educational uses within the United States. Please contact HathiTrust staff at hathitrust-help@umich.edu with any questions about this item. Minimize

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Title:

Boundary conditions for the Einstein-Christoffel formulation of Einstein's equations

Description:

Specifying boundary conditions continues to be a challenge in numerical relativity in order to obtain a long time convergent numerical simulation of Einstein's equations in domains with artificial boundaries. In this paper, we address this problem for the Einstein-Christoffel (EC) symmetric hyperbolic formulation of Einstein's equations lineariz...

Specifying boundary conditions continues to be a challenge in numerical relativity in order to obtain a long time convergent numerical simulation of Einstein's equations in domains with artificial boundaries. In this paper, we address this problem for the Einstein-Christoffel (EC) symmetric hyperbolic formulation of Einstein's equations linearized around flat spacetime. First, we prescribe simple boundary conditions that make the problem well posed and preserve the constraints. Next, we indicate boundary conditions for a system that extends the linearized EC system by including the momentum constraints and whose solution solves Einstein's equations in a bounded domain. Minimize

Publisher:

Texas State University, Department of Mathematics

Year of Publication:

2007-02-01T00:00:00Z

Document Type:

article

Language:

English

Subjects:

General relativity ; Einstein equations ; boundary conditions. ; LCC:Mathematics ; LCC:QA1-939 ; LCC:Science ; LCC:Q ; DOAJ:Mathematics ; DOAJ:Mathematics and Statistics ; LCC:Mathematics ; LCC:QA1-939 ; LCC:Science ; LCC:Q ; DOAJ:Mathematics ; DOAJ:Mathematics and Statistics ; LCC:Mathematics ; LCC:QA1-939 ; LCC:Science ; LCC:Q ; LCC:Mathematic...

General relativity ; Einstein equations ; boundary conditions. ; LCC:Mathematics ; LCC:QA1-939 ; LCC:Science ; LCC:Q ; DOAJ:Mathematics ; DOAJ:Mathematics and Statistics ; LCC:Mathematics ; LCC:QA1-939 ; LCC:Science ; LCC:Q ; DOAJ:Mathematics ; DOAJ:Mathematics and Statistics ; LCC:Mathematics ; LCC:QA1-939 ; LCC:Science ; LCC:Q ; LCC:Mathematics ; LCC:QA1-939 ; LCC:Science ; LCC:Q Minimize

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CC by-nc

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http://ejde.math.txstate.edu/conf-proc/15/a2/abstr.html

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Title:

FORMULATION OF EINSTEIN’S EQUATIONS

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Abstract. Specifying boundary conditions continues to be a challenge in numerical relativity in order to obtain a long time convergent numerical simulation of Einstein’s equations in domains with artificial boundaries. In this paper, we address this problem for the Einstein–Christoffel (EC) symmetric hyperbolic formulation of Einstein’s equation...

Abstract. Specifying boundary conditions continues to be a challenge in numerical relativity in order to obtain a long time convergent numerical simulation of Einstein’s equations in domains with artificial boundaries. In this paper, we address this problem for the Einstein–Christoffel (EC) symmetric hyperbolic formulation of Einstein’s equations linearized around flat spacetime. First, we prescribe simple boundary conditions that make the problem well posed and preserve the constraints. Next, we indicate boundary conditions for a system that extends the linearized EC system by including the momentum constraints and whose solution solves Einstein’s equations in a bounded domain. Finally, we extend our results to the case of inhomogeneous boundary conditions. 1. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2010-05-13

Source:

http://ima.umn.edu/preprints/oct2005/2065.pdf

http://ima.umn.edu/preprints/oct2005/2065.pdf Minimize

Document Type:

text

Language:

en

Rights:

Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Title:

A review of the geckos of the genus Hemidactylus (Squamata: Gekkonidae) from Oman based on morphology, mitochondrial and nuclear data, with descriptions of eight new species (project)

Publisher:

MorphoBank.org

Year of Publication:

2014

Document Type:

Dataset

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Title:

Stability of Lagrange elements for the mixed Laplacian

Description:

The stability properties of simple element choices for the mixed formulation of the Laplacian are investigated numerically. The element choices studied use vector Lagrange elements, i.e., the space of continuous piecewise polynomial vector fields of degree at most r, for the vector variable, and the divergence of this space, which consists of di...

The stability properties of simple element choices for the mixed formulation of the Laplacian are investigated numerically. The element choices studied use vector Lagrange elements, i.e., the space of continuous piecewise polynomial vector fields of degree at most r, for the vector variable, and the divergence of this space, which consists of discontinuous piecewise polynomials of one degree lower, for the scalar variable. For polynomial degrees r equal 2 or 3, this pair of spaces was found to be stable for all mesh families tested. In particular, it is stable on diagonal mesh families, in contrast to its behavior for the Stokes equations. For degree r equal 1, stability holds for some meshes, but not for others. Additionally, convergence was observed precisely for the methods that were observed to be stable. However, it seems that optimal order L² estimates for the vector variable, known to hold for r>3, do not hold for lower degrees. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2012-02-15

Source:

http://simula.no/research/sc/publications/Simula.SC.618/simula_pdf_file/

http://simula.no/research/sc/publications/Simula.SC.618/simula_pdf_file/ Minimize

Document Type:

text

Language:

en

DDC:

518 Numerical analysis *(computed)*

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Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Title:

Stability, Consistency, and Convergence of Numerical

Description:

A problem in differential equations can rarely be solved analytically, and so often is discretized, resulting in a discrete problem which can be solved in a finite sequence of algebraic operations, efficiently implementable on a computer. The error in a discretization is the difference between the solution of the original problem and the solutio...

A problem in differential equations can rarely be solved analytically, and so often is discretized, resulting in a discrete problem which can be solved in a finite sequence of algebraic operations, efficiently implementable on a computer. The error in a discretization is the difference between the solution of the original problem and the solution of the discrete problem, which must be defined so that the difference makes sense and can be quantified. Consistency of a discretization refers to a quantitative measure of the extent to which the exact solution satisfies the discrete problem. Stability of a discretization refers to a quantitative measure of the well posedness of the discrete problem. A fundamental result in numerical analysis is that the error of a discretization may be bounded in terms of its consistency and stability. A Framework for Assessing Discretizations Many different approaches are used to discretize differential equations: finite differences, finite elements, spectral methods, integral equation approaches, etc. Despite the diversity of methods, fundamental concepts such as error, consistency, and stability are relevant to all of them. Here we describe a framework general enough to encompass all Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-12-04

Source:

http://www.ima.umn.edu/~arnold/papers/stability.pdf

http://www.ima.umn.edu/~arnold/papers/stability.pdf Minimize

Document Type:

text

Language:

en

DDC:

518 Numerical analysis *(computed)*

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Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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