A uniformly valid model for the limiting behaviour of voltage potentials in the presence of thin inhomogeneities I. The case of an open mid-curve

2020 ◽  
Vol 117 (3-4) ◽  
pp. 215-240
Author(s):  
M. Charnley ◽  
M.S. Vogelius
Keyword(s):  
Valid Model ◽  
Limiting Behaviour

The rat fundus, a valid model to characterize agents acting at human 5-HT29 receptors

2001 ◽  
Vol 120 (5) ◽  
pp. A208-A208
Author(s):  
E WEBER ◽  
M BERNHARD ◽  
H PFANNKUCHE
Keyword(s):  
Valid Model

scholarly journals Factors Affecting Indonesian Preservice Teachers’ Use of ICT During Teaching Practices Through Theory of Planned Behavior

SAGE Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 215824402110275
Author(s):  
Farrah Dina Yusop ◽  
Akhmad Habibi ◽  
Rafiza Abdul Razak
Keyword(s):  
Preservice Teachers ◽  
Theory Of Planned Behavior ◽  
Planned Behavior ◽  
Information And Communication Technology ◽  
Communication Technology ◽  
Teaching Practices ◽  
Partial Least Square ◽  
Equation Modeling ◽  
Valid Model ◽  
Information And Communication

The goals of the research were to inform whether the theory of planned behavior (TPB) is a valid model to explain Indonesian preservice teachers’ (PSTs) use of information and communication technology (UICT) during teaching practices, to report best factor affecting PSTs’ UICT during teaching practices, and to elaborate differences regarding UICT during teaching practices in terms of demographic information, gender, major, university, and information and communication technology (ICT)-based courses. The sample of this study was 1,133 PSTs from three Indonesian universities who completed a 24-item printed questionnaire of four constructs: behavioral beliefs (BB), normative beliefs (NB), control beliefs (CB), and UICT. Using partial least square–structural equation modeling (PLS-SEM), the results informed that the TPB is a valid model to help explain Indonesian PSTs’ UICT during teaching practices. All constructs (BB, NB, and CB) significantly predict UICT during teaching practices where NB is reported to be the strongest predictor (β = .354). There are no significant differences in terms of genders and ICT-based courses; however, significant differences are indicated in terms of majors and universities.

scholarly journals Limiting behaviour of the mean residual life

2003 ◽  
Vol 55 (1) ◽  
pp. 217-226 ◽  
Author(s):  
David M. Bradley ◽  
Ramesh C. Gupta
Keyword(s):  
Residual Life ◽  
Mean Residual Life ◽  
Limiting Behaviour ◽  
The Mean

scholarly journals Transposition of Tn5367 in Mycobacterium marinum, Using a Conditionally Recombinant Mycobacteriophage

2003 ◽  
Vol 185 (5) ◽  
pp. 1745-1748 ◽  
Author(s):  
Jan Rybniker ◽  
Martina Wolke ◽  
Christiane Haefs ◽  
Georg Plum
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Skin Infection ◽  
Model Organism ◽  
Transposon Mutagenesis ◽  
Mycobacterium Marinum ◽  
Close Relative ◽  
Mutant Library ◽  
Human Pathogen ◽  
Valid Model ◽  
Highly Efficient

ABSTRACT Mycobacterium marinum is a close relative of the obligate human pathogen Mycobacterium tuberculosis. As with M. tuberculosis, M. marinum causes intracellular infection of poikilothermic vertebrates and skin infection in humans. It is considered a valid model organism for the study of intracellular pathogenesis of mycobacteria. Low transformation efficiencies for this species have precluded approaches using mutant libraries in pathogenesis studies. We have adapted the conditionally replicating mycobacteriophage phAE94, originally developed as a transposon mutagenesis tool for M. tuberculosis, to meet the specific requirements of M. marinum. Conditions permissive for phage replication in M. tuberculosis facilitated highly efficient transposon delivery in M. marinum. Using this technique we succeeded in generating a representative mutant library of this species, and we conclude that TM4-derived mycobacteriophages are temperature-independent suicide vectors for M. marinum.

scholarly journals On mutations in the branching model for multitype populations

2018 ◽  
Vol 50 (2) ◽  
pp. 543-564 ◽  
Author(s):  
Loïc Chaumont ◽  
Thi Ngoc Anh Nguyen
Keyword(s):  
Infectious Diseases ◽  
Asymptotic Behaviour ◽  
Continuous Time ◽  
Mutation Rates ◽  
Genetic Evolution ◽  
Connected Component ◽  
Branching Model ◽  
Limiting Behaviour ◽  
Number Of Individuals

AbstractThe forest of mutations associated to a multitype branching forest is obtained by merging together all vertices in each of its clusters and by preserving connections between them. (Here, by cluster, we mean a maximal connected component of the forest in which all vertices have the same type.) We first show that the forest of mutations of any multitype branching forest is itself a branching forest. Then we give its progeny distribution and we describe some of its crucial properties in terms of the initial progeny distribution. We also obtain the limiting behaviour of the number of mutations both when the total number of individuals tends to ∞ and when the number of roots tends to ∞. The continuous-time case is then investigated by considering multitype branching forests with edge lengths. When mutations are nonreversible, we give a representation of their emergence times which allows us to describe the asymptotic behaviour of the latter, under certain conditions on the mutation rates. These results have potential relevance for emergence of mutations in population cells, particularly for genetic evolution of cancer or development of infectious diseases.

Initial and final behaviour of failure rate functions for mixtures and systems

2003 ◽  
Vol 40 (03) ◽  
pp. 721-740 ◽  
Author(s):  
Henry W. Block ◽  
Yulin Li ◽  
Thomas H. Savits
Keyword(s):  
Asymptotic Behaviour ◽  
Failure Rate ◽  
Rate Function ◽  
Coherent Systems ◽  
Failure Rate Function ◽  
Rate Functions ◽  
Limiting Behaviour

In this paper we consider the initial and asymptotic behaviour of the failure rate function resulting from mixtures of subpopulations and formation of coherent systems. In particular, it is shown that the failure rate of a mixture has the same limiting behaviour as the failure rate of the strongest subpopulation. A similar result holds for systems except the role of strongest subpopulation is replaced by strongest min path set.

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