Results 1 to 10 of about 109,862 (217)

Periodic Travelling Wave Solutions of Discrete Nonlinear Schrödinger Equations

open access: yesJournal of Applied Mathematics, 2017
The existence of nonzero periodic travelling wave solutions for a general discrete nonlinear Schrödinger equation (DNLS) on one-dimensional lattices is proved. The DNLS features a general nonlinear term and variable range of interactions going beyond the
Dirk Hennig
doaj   +3 more sources

Clusiomitidae, A New Family of Eocene Fossil Acalyptratae, with Revision of Acartophthalmites Hennig and Clusiomites Gen. Nov. (Diptera)

open access: yesInsects, 2021
The Eocene Baltic amber fossil flies of the genus Acartophthalmites Hennig, 1965 (Diptera: Acalyptratae) are revised. Seven species are recognized and described or redescribed. Five species, A. crassipes sp. nov., A. luridus sp. nov., A. rugosus sp. nov.,
Jindřich Roháček, Christel Hoffeins
doaj   +1 more source

First records of Periscelididae (Diptera, Opomyzoidea) from French Guiana [PDF]

open access: yesCheck List, 2018
Periscelididae (Diptera, Opomyzoidea) are recorded for the first time from French Guiana, with 5 species Marbenia peculiaris Malloch, 1931, Neoscutops barcelosiensis Ale-Rocha & Freitas, 2011, Neoscutops flavoscutellatus Ale-Rocha & ...
Rosaly Ale-Rocha, Matheus M. M. Soares
doaj   +3 more sources

Developing “Haltung” through autoethnographic reflections during supervisor training research [PDF]

open access: yesInternational Journal of Evidence Based Coaching and Mentoring, 2023
In this article I focus on the development of my professional attitude [Haltung] during the transition from practitioner to researcher. It is part of my dissertation in which I ask in what sense (coaching) supervisors in training develop haltung during ...
Carsten Hennig
doaj   +1 more source

Protanthomyza grimaldii sp. nov., a further member of the extinct subfamily Protanthomyzinae (Diptera, Anthomyzidae) from Baltic amber [PDF]

open access: yesZooKeys, 2020
A new fossil species, Protanthomyza grimaldii sp. nov. (Diptera, Anthomyzidae), is described from Baltic amber (Eocene, 48–34 Ma) based on two (male and female) inclusions.
Jindřich Roháček
doaj   +3 more sources

A new Acartophthalmites Hennig from Eocene Baltic amber (Diptera, Acalyptratae)

open access: yesZooKeys, 2018
A new fossil fly species, Acartophthalmites willii sp. n. (Diptera: Acalyptratae: Opomyzoidea) from Baltic amber (Eocene, 56−33.9 Ma), is described based on a male originally assigned by Hennig (1969) to A.
Ricardo Pérez-de la Fuente   +2 more
doaj   +3 more sources

MOKINIŲ GRUPĖS INTERESŲ TYRIMAS

open access: yesPsichologija, 2015
Mokinių grupės interesų struktūra tirta pasitelkiant adaptuotą W. Hennig metodą. Ištirta 21 mokinių grupė iš bendrojo ir profesinio lavinimo mokyklų. Studijuotas diapazonas, reikšmė, tarpusavio sąveikos ir grupių interesų struktūra, o taip pat atskleisti
J. Lapė   +2 more
doaj   +1 more source

Social Facts Explained and Presupposed [PDF]

open access: yes, 2006
Attempts are often made to explain collective action in terms of the interaction of individuals. A common objection to such attempts is that they are circular: Since every interaction presupposes the existence of common practices and common practices ...
Hennig, Boris
core   +1 more source

A revision of Scipopus Enderlein including the subgenera Scipopus s. str., Phaeopterina Frey and Parascipopus subgen. nov. (Diptera, Micropezidae, Taeniapterinae)

open access: yesEuropean Journal of Taxonomy, 2023
The genus Scipopus (Diptera, Micropezidae, Taeniapterinae) is redefined and revised to include the genera previously treated as the “Scipopus group” which included Scipopus Enderlein, Pseudeurybata Hennig, and Phaeopterina Frey. Pseudeurybata is treated
Kate Lindsay, Stephen A. Marshall
doaj   +1 more source

Breakdown points for maximum likelihood estimators of location-scale mixtures [PDF]

open access: yes, 2004
ML-estimation based on mixtures of Normal distributions is a widely used tool for cluster analysis. However, a single outlier can make the parameter estimation of at least one of the mixture components break down. Among others, the estimation of mixtures
Hennig, Christian
core   +2 more sources

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