Results 31 to 40 of about 110,654 (237)

Fully pseudospectral time evolution and its application to 1+1 dimensional physical problems

open access: yes, 2012
It was recently demonstrated that time-dependent PDE problems can numerically be solved with a fully pseudospectral scheme, i.e. using spectral expansions with respect to both spatial and time directions (Hennig and Ansorg, 2009 [15]). This was done with
Hennig, Jörg
core   +1 more source

The interior of axisymmetric and stationary black holes: Numerical and analytical studies [PDF]

open access: yes, 2011
We investigate the interior hyperbolic region of axisymmetric and stationary black holes surrounded by a matter distribution. First, we treat the corresponding initial value problem of the hyperbolic Einstein equations numerically in terms of a single ...
Ansorg M   +10 more
core   +3 more sources

Microphorites Hennig

open access: yes, 2008
Published as part of Arillo, Antonio, Peñalver, Enrique & Delclòs, Xavier, 2008, Microphorites (Diptera: Dolichopodidae) from the Lower Cretaceous amber of San Just (Spain), and the co-occurrence of two ceratopogonid species in Spanish amber deposits, pp.
Arillo, Antonio   +2 more
openaire   +2 more sources

Christel Gärtner, Linda Hennig & Olaf Müller (eds): Families and Religion: Dynamics of Transmission across Generations

open access: yesTemenos
Book review of Christel Gärtner, Linda Hennig & Olaf Müller (eds): Families and Religion: Dynamics of Transmission across Generations. Frankfurt: Campus Verlag, 2025, 425 pp.
Tuomas Martikainen
doaj   +1 more source

Imaginary Geographies of Classic and New Travel Media – Reality-Construction of Touristic Intermediaries with Sevilla as a Case in Point

open access: yesVia@, 2013
The theoretical approach of “Imaginary Geographies” by Christoph Hennig serves as a framework for the examination of forms of reality construction via classical and new travel media. Here the questions in which way these selected intermediaries form part
Tatjana Thimm
doaj   +1 more source

Cluster validation by measurement of clustering characteristics relevant to the user

open access: yes, 2019
There are many cluster analysis methods that can produce quite different clusterings on the same dataset. Cluster validation is about the evaluation of the quality of a clustering; "relative cluster validation" is about using such criteria to compare ...
Bowcock   +17 more
core   +1 more source

Biogenesis of mitochondrial c-type cytochromes [PDF]

open access: yes, 1990
Cytochromesc andc 1 are essential components of the mitochondrial respiratory chain. In both cytochromes the heme group is covalently linked to the polypeptide chain via thioether bridges. The location of the two cytochromes is in the intermembrane space;
Gonzales, Daniel H., Neupert, Walter
core   +2 more sources

Analyzing individual rent price ratios in eastern German agricultural land markets: A GAMLSS approach

open access: yesAgribusiness, EarlyView.
Abstract This study explores the rent price ratio in agricultural land markets, crucial for evaluating market efficiency, policy needs, and farmer decision‐making. Traditionally, the analyses faced challenges due to the absence of concurrent sale and rent data for the same land, potentially leading to biased results.
Marius Michels   +4 more
wiley   +1 more source

Does a Cadillac engine need a biological and phylogenetic explanation? [PDF]

open access: yes, 2016
In this text we briefly explore whether ridiculing material objects like a ‘Cadillac engine’, a ‘desk’, ‘gold bars in a vault’ as reduction ad absurdum in ‘dialectical duels’ or as a metaphor for teaching evolution is really phylogenetically justified,
Fröbisch, Jörg, Romano, Marco
core  

Probabilistic Interpretation of Linear Solvers

open access: yes, 2014
This manuscript proposes a probabilistic framework for algorithms that iteratively solve unconstrained linear problems $Bx = b$ with positive definite $B$ for $x$.
Hennig, Philipp
core   +1 more source

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