Results 271 to 280 of about 325,578 (303)
Some of the next articles are maybe not open access.
Diverging times in movement analysis
Journal of Biomechanics, 2009In movement analysis, more than one measuring system is often used to record biomechanical variables. Usually, it is desired to assign the occurring events to a common time line, which can be accomplished by synchronizing data acquisition, i.e. using a pulse to trigger a sample on all systems.
Susanne W, Lipfert +2 more
openaire +2 more sources
Molecular evidence on plant divergence times
American Journal of Botany, 2004Estimation of divergence times from sequence data has become increasingly feasible in recent years. Conflicts between fossil evidence and molecular dates have sparked the development of new methods for inferring divergence times, further encouraging these efforts. In this paper, available methods for estimating divergence times are reviewed, especially
Michael J, Sanderson +3 more
openaire +2 more sources
Determining Divergence Times With Protein Clocks
The Biological Bulletin, 1999ported was a divergence time for prokaryotes and eukaryotes of only slightly more than two billion years ago. In line with this result, the average resemblance of these enzymes between Bacteria (a.k.a. eubacteria) and Eukarya (a.k.a. eukaryotes) was 37% identity.
R F, Doolittle, D F, Feng, G, Cho
openaire +2 more sources
Multiversion divergence control of time fuzziness
Proceedings of the third international conference on Information and knowledge management - CIKM '94, 1994Epsilon Serializability (ESR) has been proposed to manage and control inconsistency in extending the classic transaction processing. ESR increases system concurrency by tolerating a bounded amount of inconsistency. In this paper, we present multiversion divergence control (mvDC) algorithms that support ESR with not only value but also time fuzziness in
Calton Pu +3 more
openaire +1 more source
Radiation and Divergence Times of Batoidea
Journal of Vertebrate Paleontology, 2020We present a time-scaled analysis based on morphological characters to estimate the divergence ages for the major batoid clades. Two approaches were used: tip-dating, which allows the extinct taxa to be included as terminals, assessing the phylogenetic relations and their divergence time simultaneously; and basic and minimum branch length (‘a ...
Eduardo Villalobos-Segura +1 more
openaire +1 more source
Thinking Skills and Creativity, 2021
Abstract Performance on divergent thinking (DT) tests varies by different testing conditions. Although many studies documented that DT performance increases when more time is provided, it still remains unanswered whether DT performance continues to increase linearly or follows a rather non-linear pattern as more time is allowed.
Sue Hyeon Paek +3 more
openaire +1 more source
Abstract Performance on divergent thinking (DT) tests varies by different testing conditions. Although many studies documented that DT performance increases when more time is provided, it still remains unanswered whether DT performance continues to increase linearly or follows a rather non-linear pattern as more time is allowed.
Sue Hyeon Paek +3 more
openaire +1 more source
Theoretical Population Biology, 1988
A statistical method of estimating population splitting times is developed. We consider three populations, with an assumed known tree topology for their phylogenetic tree. From simulation studies, we find that the method of moments performs very well, in particular for both large number of loci and divergence times, in estimating genetic divergence ...
openaire +2 more sources
A statistical method of estimating population splitting times is developed. We consider three populations, with an assumed known tree topology for their phylogenetic tree. From simulation studies, we find that the method of moments performs very well, in particular for both large number of loci and divergence times, in estimating genetic divergence ...
openaire +2 more sources
2005
Reevaluation of primate divergence times was necessary after it became obvious that the originally proposed dates are in conflict with the paleontological record. The recently established non-primate calibration points (AC-60 and ER-50)provide divergence times of eutherians and primates that are consistent with the fossil record.
A. Janke, U. Arnason
openaire +1 more source
Reevaluation of primate divergence times was necessary after it became obvious that the originally proposed dates are in conflict with the paleontological record. The recently established non-primate calibration points (AC-60 and ER-50)provide divergence times of eutherians and primates that are consistent with the fossil record.
A. Janke, U. Arnason
openaire +1 more source
Stretched Times and Divergent Time Scales
1995Relaxation is examined for glassy materials. A defect-diffusion model is investigated in detail which involves a distribution of transition rates. Behavior is divided into two classes depending on if the mean transition time is longer or shorter than the duration of the experiment.
John T. Bendler, Michael F. Shlesinger
openaire +1 more source
Divergence measures for time-frequency distributions
Seventh International Symposium on Signal Processing and Its Applications, 2003. Proceedings., 2003Distance measures between statistical models or between a model and observations are widely used concepts in signal processing. They are commonly used in solving problems such as detection, automatic segmentation, classification, pattern recognition and coding. In recent years, there has been an interest in extending these distance measures to the time-
openaire +1 more source