2,342 research outputs found
The Doctrine of the Sacrament of the Altar as Set Forth in the English Theological Periodcials of the Lutheran Church--Missouri Synod and the American Lutheran Conference
The purpose of this thesis is to make a comparative study of the doctrine of the Sacrament of the Altar as it has been presented in the English theological periodicals of the Lutheran Church.--Missouri Synod and of the American Lutheran Conference since World War I
Probit models for capture-recapture data subject to imperfect detection, individual heterogeneity and misidentification
As noninvasive sampling techniques for animal populations have become more
popular, there has been increasing interest in the development of
capture-recapture models that can accommodate both imperfect detection and
misidentification of individuals (e.g., due to genotyping error). However,
current methods do not allow for individual variation in parameters, such as
detection or survival probability. Here we develop misidentification models for
capture-recapture data that can simultaneously account for temporal variation,
behavioral effects and individual heterogeneity in parameters. To facilitate
Bayesian inference using our approach, we extend standard probit regression
techniques to latent multinomial models where the dimension and zeros of the
response cannot be observed. We also present a novel Metropolis-Hastings within
Gibbs algorithm for fitting these models using Markov chain Monte Carlo. Using
closed population abundance models for illustration, we re-visit a DNA
capture-recapture population study of black bears in Michigan, USA and find
evidence of misidentification due to genotyping error, as well as temporal,
behavioral and individual variation in detection probability. We also estimate
a salamander population of known size from laboratory experiments evaluating
the effectiveness of a marking technique commonly used for amphibians and fish.
Our model was able to reliably estimate the size of this population and
provided evidence of individual heterogeneity in misidentification probability
that is attributable to variable mark quality. Our approach is more
computationally demanding than previously proposed methods, but it provides the
flexibility necessary for a much broader suite of models to be explored while
properly accounting for uncertainty introduced by misidentification and
imperfect detection. In the absence of misidentification, our probit
formulation also provides a convenient and efficient Gibbs sampler for Bayesian
analysis of traditional closed population capture-recapture data.Comment: Published in at http://dx.doi.org/10.1214/14-AOAS783 the Annals of
Applied Statistics (http://www.imstat.org/aoas/) by the Institute of
Mathematical Statistics (http://www.imstat.org
Connections Between Computation Trees and Graph Covers
Connections between graph cover pseudocodewords and computation tree pseudocodewords are investigated with the aim of bridging the gap between the theoretically attractive analysis of graph covers and the more intractable analysis of iterative message-passing algorithms that are intuitively linked to graph covers. Both theoretical results and numerous examples are presented
Requirements on the engineering of advanced standby strategies in automobile production
Part of:
Seliger, Günther (Ed.): Innovative solutions : proceedings / 11th Global Conference on Sustainable Manufacturing, Berlin, Germany, 23rd - 25th September, 2013. - Berlin: Universitätsverlag der TU Berlin, 2013. - ISBN 978-3-7983-2609-5 (online). - http://nbn-resolving.de/urn:nbn:de:kobv:83-opus4-40276. - pp. 165–170.A key challenge in manufacturing industry within the next years is to reduce and optimize energy consumption of production systems without affecting productivity. To adress this problem, different approaches are discussed, such as smart grids, or utilization of more energy-efficient machine components. A new approach on shop floor level is to optimize production control strategies, to power down inactive machine components during non productive phases. To fully exploit this potential, it is necessary to integrate the planning of the required control systems into all phases of the engineering process. This paper presents a concept for the integrated engineering of these new applications by evaluating planning tools, methods and data models regarding their suitability to implement the concept of advanced power down and restart concepts. In conclusion, requirements on these tools, methods and data models are defined, to empower them for optimal support of the future engineering process
Extraction of Anthocyanins From Sunflower Hulls
In 1982, there was a controversy about synthetic food dyes. This led to renewed interest in natural food dyes.The limitation of natural dyes were that they were lacking stability. However, at this time, new techniques were available to improve color stability. The purpose of the study covered in this article was that of the extraction of anthocyanins, natural dyes, for purple-hulled gentypes in order to determine if such pigments were qualitatively competitive with other sources of natural (blue-red) pigments for food products. Black-hulled oil sunflower hybrid 894 yielded no anthocyaqnins. All purple=hulled genotypes yielded anthocyanins. These could be easily extracted at large quantities
Acoustically driven ferromagnetic resonance
Surface acoustic waves (SAW) in the GHz frequency range are exploited for the
all-elastic excitation and detection of ferromagnetic resonance (FMR) in a
ferromagnetic/ferroelectric (nickel/lithium niobate) hybrid device. We measure
the SAW magneto-transmission at room temperature as a function of frequency,
external magnetic field magnitude, and orientation. Our data are well described
by a modified Landau-Lifshitz-Gilbert approach, in which a virtual,
strain-induced tickle field drives the magnetization precession. This causes a
distinct magnetic field orientation dependence of elastically driven FMR that
we observe in both model and experiment.Comment: 4 page
Down-regulation of phorbol diester binding to NG115-401L neuronal cells is dependent on structure, concentration and time
AbstractThe down-regulation of [3H]PDBu binding to a neural cell line, NG115-401L, has been examined in response to two biologically active phorbol diesters, PDBu and PMA. Chronic treatment with PDBu or PMA causes a concentration- and time-dependent loss of specific [3H]PDBu binding. The action of PMA is biphasic with respect to both concentration and time dependence
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