@article{MollFuchsBlanketal.1993, author = {Moll, Heidrun and Fuchs, Harald and Blank, Christine and R{\"o}llinghoff, Martin}, title = {Langerhans cells transport Leishmania major from the infected skin to the draining lymph node for presentation to antigen-specific T cells}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-46023}, year = {1993}, abstract = {No abstract available}, subject = {Immunologie}, language = {en} } @article{Krueger1977, author = {Kr{\"u}ger, Hans-Peter}, title = {Simultane U-Tests zur exakten Pr{\"u}fung von Haupt- und Wechselwirkungen in 2x2-faktoriellen Versuchspl{\"a}nen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41592}, year = {1977}, abstract = {Ausgehend von einem Ansatz zur nichtparametrischen Pr{\"u}fung von Wechselwirkungen (BREDENKAMP, 1974), der nur unter asymptotischen Bedingungen gilt, wird empfohlen, auf Wechselwirkung in dem praktisch wichtigen 22 -faktoriellen Versuchsplan exakt dadurch zu pr{\"u}fen, daß man die Diagonalzellen {\"u}berkreuzend zusammenfaßt und mittels V-Test (Cross-Over-V-Test) auf Lageunterschiede pr{\"u}ft. Zugleich kann durch Zeilen- und/oder Spaltenzusammenfassungen auf Hauptwirkungen gepr{\"u}ft werden. Drei simultane Tests k{\"o}nnen sodann eine parametrische ANOVA aussageinferentiell voll ersetzen! Die Durchflihrung der Tests wird an einem Beispiel illustriert. Zus{\"a}tzlich wird auf die M{\"o}glichkeit der Pr{\"u}fung auf Wechselwirkungen h{\"o}herer Ordnung in 2n-faktoriellen Versuchspl{\"a}nen hingewiesen.}, language = {de} } @article{BonteClercqZwertvaegheretal.2009, author = {Bonte, Dries and Clercq, Nele De and Zwertvaegher, Ingrid and Lens, Luc}, title = {Repeatability of dispersal behaviour in a common dwarf spider: evidence for different mechanisms behind short- and long-distance dispersal}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48242}, year = {2009}, abstract = {Abstract: 1. The response of dispersal towards evolution largely depends on its heritability for which upper limits are determined by the trait's repeatability. 2. In the Linyphiid spider E. atra, we were able to separate long- and short-distance dispersal behaviours (respectively ballooning and rappelling) under laboratory conditions. By performing repeated behavioural trials for females, we show that average dispersal trait values decrease with increasing testing days. By comparing mated and unmated individuals during two periods (before and after mating for the mated group, and the same two periods for the unmated group), we show that mating has no effect on the mean displayed dispersal behaviour or its within-individual variation. Repeatabilities were high and consistent for ballooning motivation, but not for rappelling. 3. Ballooning motivation can be regarded as highly individual-specific behaviour, while general pre-dispersal and rappelling behaviours showed more individual variation. Such difference in repeatability between long-and short-distance dispersal suggests that short-and long-distance dispersal events are triggered by different ecological and evolutionary mechanisms.}, language = {en} } @article{BonteMaes2008, author = {Bonte, Dries and Maes, Dirk}, title = {Trampling affects the distribution of specialised coastal dune arthropods}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48274}, year = {2008}, abstract = {Abstract: From a conservation point of view, species- tolerances towards disturbance are often generalised and lack reference to spatial scales and underlying processes. In order to investigate how average typical species react to habitat fragmentation and disturbance, we adopted a multi-species approach to address occupancy patterns of five specialised dune arthropods (butterflies Hipparchia semele, Issoria lathonia; grasshopper Oedipoda caerulescens; spiders Alopecosa fabrilis, Xysticus sabulosus) in recently fragmented coastal dune habitats which are subjected to varying levels and modes of local disturbance, i.e. trampling by cattle or people. Occupancy patterns were assessed during two successive years in 133 grey dune fragments of the Flemish coastal dunes (Belgium, France). By treating species as a random factor in our models, emphasis was placed on generalisations rather than documenting species-specific patterns. Our study demonstrates that deteriorating effects of local disturbance on arthropod incidence cannot be interpreted independent of its landscape context, and appear to be more severe when patch area and connectivity decrease. When controlled for patch area and trampling intensity, the probability of species occupancy in poorly connected patches is higher under cattle trampling than under recreation. Incidences additionally decrease with increasing intensity of cattle trampling, but increases with trampling by tourists. This study provides evidence of mode- and landscape-dependent effects of local disturbance on species occupancy patterns. Most importantly, it demonstrates that trampling of sensitive dune fragments will lead to local and metapopulation extinction in landscapes where trampling occurs in a spatially autocorrelated way, but that the outcome (spatial patterns) varies in relation to disturbance mode, indicating that effects of disturbance cannot be generalised.}, language = {en} } @article{BonteLanckackerWiersmaetal.2008, author = {Bonte, Dries and Lanckacker, Kjell and Wiersma, Elisabeth and Lens, Luc}, title = {Web building flexibility of an orb-web spider in a heterogeneous agricultural landscape}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48262}, year = {2008}, abstract = {Abstract: Intensification of land-use in agricultural landscapes is responsible for a decline of biodiversity which provide important ecosystem services like pest-control. Changes in landscape composition may also induce behavioural changes of predators in response to variation in the biotic or abiotic environment. By controlling for environmentally confounding factors, we here demonstrate that the orb web spider Araneus diadematus alters its web building behaviour in response to changes in the composition of agricultural landscapes. Thereby, the species increases its foraging efficiency (i.e. investments in silk and web asymmetry) with an increase of agricultural land-use at intermediate spatial scales. This intensification is also related to a decrease in the abundance of larger prey. A negative effect of landscape properties at similar spatial scales on spider fitness was recorded when controlling for relative investments in capture thread length. This study consequently documents the web building flexibility in response to changes in landscape composition, possibly due to changes in prey availability.}, language = {en} } @article{WillBlankRoellinghoffetal.1992, author = {Will, Antje and Blank, Christine and R{\"o}llinghoff, Martin and Moll, Heidrun}, title = {Murine epidermal Langerhans cells are potent stimulators of an antigen-specific T cell response to Leishmania major, the cause of cutaneous leishmaniasis}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45872}, year = {1992}, abstract = {Cutaneous leishmaniasis is initiated by the bite of an infected sandfly and inoculation of Leishmania major parasites into the mammalian skin. Macrophages are known to playa central role in the course of infection because they are the prime host cells and funetion as antigen-presenting eells (APC) for induetion of the eell-mediated immune response. However, in addition to maerophages in the dermis. the skin eontains epidermal Langerhans eells (LC) which ean present antigen (Ag) to T cells. Therefore, using a murine model of cutaneous leishmaniasis, we analyzed the ability of epidermal cells to induce a T eell response to L.major. The results demonstrated that freshly isolated LC, but not cuItured LC, are highly active in presenting L.major Ag in vitro to T cells from primed mice and to a L.major-specific T cell clone. Furthermore, freshly isolated LC had the ability to retain L.major Ag in immunogenic form for at least 2 days. Their efficiency was much greater than that of irradiated spleen cells, a standard population of APC. LC stimulated both T cell proliferation and production of the Iymphokines interleukin (IL)-2 and IL-4. The response was Ag specific and could be induced by lysate of L. major parasites and by live organisms. The data suggest that epidermal LC are important APC in eutaneous leishmaniasis. They may perform a critical funetion by eapturing L.major Ag in the skin and presenting it either to quiescent T eells circulating through the draining lymph node or locally to T effector cells infiltrating the cutaneous lesion.}, subject = {Immunologie}, language = {de} } @article{BlankFuchsRappersbergeretal.1993, author = {Blank, Christine and Fuchs, Harald and Rappersberger, Klemens and R{\"o}llinghoff, Martin and Moll, Heidrun}, title = {Parasitism of epidermal Langerhans cells in experimental cutaneous leishmaniasis with Leishmania major}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45850}, year = {1993}, abstract = {Murine epidermal Langerhans cells (LC) have been demonstrated to stimulate a vigorous T cell response to Leishmania major, a cause of human cutaneous leishmaniasis. It was therefore of interest to analyze whether LC can take up viable parasites. Epidermal cells were obtained from mouse ear skin for incubation with L. major and subsequent detection of intracellular parasites by cytochemistry. Freshly isolated LC, but not cultured LC, phagocytosed L. major and the uptake was inhibited by antibodies to the complement receptor type 3. Electron microscopic studies revealed the presence of viable amastigotes within Le. Moreover, with double-Iabeling techniques, L. major-containing LC could also be detected in infected skin. The results demonstrate that LC can internalize L. major. Since the number of organisms per infected LC remained consistently low, the prime task of LC may not be the promotion of parasite spreading but the presentation of L. major antigen to T cells and, thus, the regulation of the cellular immunity during cutaneous leishmaniasis.}, language = {en} } @article{PfefferSchoelGulleetal.1991, author = {Pfeffer, K. and Schoel, H. and Gulle, H. and Moll, Heidrun and Kromer, S. and Kaufmann, S. H. E. and Wagner, H.}, title = {Analysis of primary T cell responses to intact and fractionated microbial pathogens}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-46916}, year = {1991}, abstract = {Freshly isolated human T lymphocytes were tested for their response to mycobacteria, mycobacteriallysates, 2 dimensional (2D) PAGE separated mycobacteriallysates, leishmania and defined leishmanial antigen preparations. While,o T cells proliferated vigourously in the presence of mycobacteria and mycobacteria derived lysates, a significant stimulation from 2 D gel separated lysates was not detected. In addition '10 T cells failed to respond towards leishmania or leishmanial components. In the ab T cell compartment some donors, presumably according to their state of immunity against mycobacteria, responded to mycobacteria, mycobacterial lysates and 2 D gel separated mycobacterial lysates. Neither freshly isolated '10 T cells nor ab T cells from naive donors did mount a significant immune response against leishmania.}, language = {en} } @article{HellerKrueger1976, author = {Heller, Dieter and Kr{\"u}ger, Hans-Peter}, title = {Analyse dreistufig zu beantwortender Fragebogenitems}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41583}, year = {1976}, abstract = {In Frageb{\"o}gen tauchen h{\"a}ufig tern{\"a}re Antwortm{\"o}glichkeiten auf (z.B. ja - nein - weiß nicht). F{\"u}r eine Analyse solcher Hems werden Kennwerte vorgeschlagen. Dabei wird ein der Schwierigkeit analoger Popularit{\"a}tsindex eingef{\"u}hrt, der in p+ den Anteil der Ja-Antworten angibt. Aus p+ und p-, dem Anteil der Nein-Antworten, wird ein Aktualit{\"a}tsindex definiert, der in den Grenzen zwischen 0 und 1 variiert und die Eliminierung wenig aktueller Fragen gestattet. Zur Bestimmung der Trennsch{\"a}rfe werden Punkt-Vierfelder- oder phi-Koeffizienten angegeben. die aus der Zerlegung des X2 einer 3x2-Tafel in eine 2x2-Tafel und in eine auf die Unbestimmtheitsantwort zur{\"u}ckgehende Restkomponente entstehen. Ebenso werden Koeffizienten f{\"u}r Iteminterkorrelationen aus 3x3-Tafeln und Indizes f{\"u}r die Reliabilit{\"a}t angegeben.}, language = {de} } @article{KruegerKohnen1980, author = {Kr{\"u}ger, Hans-Peter and Kohnen, Ralf}, title = {Eine neue Methode zur Pr{\"u}fung der Wirkung von Psychopharmaka - Die "Weltbeschreibung"}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41566}, year = {1980}, abstract = {Kompensation und das Problem der Zuggebbarkeit werden als die beiden wichtigsten St{\"o}rquellen bei der Erfassung pharmakonbedingter Befindlichkeits{\"a}nderungen dargestellt. Gef{\"o}rdert werden diese Prozesse durch eine Zentrierung der Methode auf die Selbstbeobachtung. Es wird die Hypothese aufgestellt, daß die Selbstbeobachtung ersetzbar ist durch eine Beschreibung der "Welt draußen". Die Person kann sich nur in der Welt erleben - folglich werden Ver{\"a}nderungen dieses Erlebnis auch Ver{\"a}nderungen in der Beschreibung der Welt nach sich ziehen. Ausgehend von dieser Hypothese wird ein Experiment konzipiert, in dem die Vpn lediglich die experimentelle Situation und die am Experiment beteiligten anderen Vpn beschreiben, nicht aber sich selbst. Es kann gezeigt werden, daß mit den so gewonnenen Maßen eindeutige Wirkungen des eingesetzten Tranquilizers nachgewiesen werden k{\"o}nnen, ebenso eindeutige Dosis-Wirkungs-Beziehungen. Die Konsequenzen f{\"u}r eine pharmakopsychologische Methodik werden diskutiert. Zudem wird herausgehoben, daß Tranquilantien dann als positiv bewertet werden k{\"o}nnen, wenn sie die Reagibilit{\"a}t der Vpn auf die Situation erh{\"o}hen und durch eine Verringerung des allgemeinen Aktivierungsniveaus eine ad{\"a}quate Verarbeitung angstinduzierender Situatonen erm{\"o}glichen.}, language = {de} } @article{KruegerBuchta1980, author = {Kr{\"u}ger, Hans-Peter and Buchta, Herbert}, title = {Nichtparametrischer Vergleich von Testprofilen und Verlaufskurven bei unabh{\"a}ngigen Stichproben}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41513}, year = {1980}, abstract = {Werden k Testwerte an zwei oder mehreren Stichproben von Pbn erhoben, stellt sich das Problem des Vergleichs von Testprofilen. {\"A}hnliche Fragen treten auf, wenn statt k verschiedenen Testwerten ein Meßwert zu k Zeitpunkten an einem Pb erhoben wird. Zur Auswertung dieser Fragestellung wird ein Vorgehen nach dem WILCOXON-Rangsummentest vorgeschlagen, der es erlaubt (1) Unterschiede aller Art (2) Unterschiede in der Lage und (3) Unterschiede in der Form der Profile zu pr{\"u}fen. Das Vorgehen wird an einem Beispiel aufgezeigt. Erweiterungen auf andere F{\"a}lle werden diskutiert.}, language = {de} } @article{BonteHovestadtPoethke2008, author = {Bonte, Dries and Hovestadt, Thomas and Poethke, Hans-Joachim}, title = {Male-killing endosymbionts: influence of environmental conditions on persistance of host metapopulation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45344}, year = {2008}, abstract = {Background: Male killing endosymbionts manipulate their arthropod host reproduction by only allowing female embryos to develop into infected females and killing all male offspring. Because of the reproductive manipulation, we expect them to have an effect on the evolution of host dispersal rates. In addition, male killing endosymbionts are expected to approach fixation when fitness of infected individuals is larger than that of uninfected ones and when transmission from mother to offspring is nearly perfect. They then vanish as the host population crashes. High observed infection rates and among-population variation in natural systems can consequently not be explained if defense mechanisms are absent and when transmission efficiency is perfect. Results: By simulating the host-endosymbiont dynamics in an individual-based metapopulation model we show that male killing endosymbionts increase host dispersal rates. No fitness compensations were built into the model for male killing endosymbionts, but they spread as a group beneficial trait. Host and parasite populations face extinction under panmictic conditions, i.e. conditions that favor the evolution of high dispersal in hosts. On the other hand, deterministic 'curing' (only parasite goes extinct) can occur under conditions of low dispersal, e.g. under low environmental stochasticity and high dispersal mortality. However, high and stable infection rates can be maintained in metapopulations over a considerable spectrum of conditions favoring intermediate levels of dispersal in the host. Conclusion: Male killing endosymbionts without explicit fitness compensation spread as a group selected trait into a metapopulation. Emergent feedbacks through increased evolutionary stable dispersal rates provide an alternative explanation for both, the high male-killing endosymbiont infection rates and the high among-population variation in local infection rates reported for some natural systems.}, subject = {Metapopulation}, language = {en} } @article{BonteHovestadtPoethke2009, author = {Bonte, Dries and Hovestadt, Thomas and Poethke, Hans Joachim}, title = {Sex-specific dispersal and evolutionary rescue in metapopulations infected by male killing endosymbionts}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45351}, year = {2009}, abstract = {Background: Male killing endosymbionts manipulate their arthropod host reproduction by only allowing female embryos to develop into infected females and killing all male offspring. Because the resulting change in sex ratio is expected to affect the evolution of sex-specific dispersal, we investigated under which environmental conditions strong sex-biased dispersal would emerge, and how this would affect host and endosymbiont metapopulation persistence. Results: We simulated host-endosymbiont metapopulation dynamics in an individual-based model, in which dispersal rates are allowed to evolve independently for the two sexes. Prominent male-biased dispersal emerges under conditions of low environmental stochasticity and high dispersal mortality. By applying a reshuffling algorithm, we show that kin-competition is a major driver of this evolutionary pattern because of the high within-population relatedness of males compared to those of females. Moreover, the evolution of sex-specific dispersal rescues metapopulations from extinction by (i) reducing endosymbiont fixation rates and (ii) by enhancing the extinction of endosymbionts within metapopulations that are characterized by low environmental stochasticity. Conclusion: Male killing endosymbionts induce the evolution of sex-specific dispersal, with prominent male-biased dispersal under conditions of low environmental stochasticity and high dispersal mortality. This male-biased dispersal emerges from stronger kin-competition in males compared to females and induces an evolutionary rescue mechanism.}, subject = {Metapopulation}, language = {en} } @article{GrosHovestadtPoethke2006, author = {Gros, Andreas and Hovestadt, Thomas and Poethke, Hans Joachim}, title = {Evolution of local adaptions in dispersal strategies}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45406}, year = {2006}, abstract = {The optimal probability and distance of dispersal largely depend on the risk to end up in unsuitable habitat. This risk is highest close to the habitat's edge and consequently, optimal dispersal probability and distance should decline towards the habitat's border. This selection should lead to the emergence of spatial gradients in dispersal strategies. However, gene flow caused by dispersal itself is counteracting local adaptation. Using an individual based model we investigate the evolution of local adaptations of dispersal probability and distance within a single, circular, habitat patch. We compare evolved dispersal probabilities and distances for six different dispersal kernels (two negative exponential kernels, two skewed kernels, nearest neighbour dispersal and global dispersal) in patches of different size. For all kernels a positive correlation between patch size and dispersal probability emerges. However, a minimum patch size is necessary to allow for local adaptation of dispersal strategies within patches. Beyond this minimum patch area the difference in mean dispersal distance between center and edge increases linearly with patch radius, but the intensity of local adaptation depends on the dispersal kernel. Except for global and nearest neighbour dispersal, the evolved spatial pattern are qualitatively similar for both, mean dispersal probability and distance. We conclude, that inspite of the gene-flow originating from dispersal local adaptation of dispersal strategies is possible if a habitat is of sufficient size. This presumably holds for any realistic type of dispersal kernel.}, subject = {Ausbreitung}, language = {en} } @article{ObermaierHeisswolfRandlkoferetal.2006, author = {Obermaier, Elisabeth and Heisswolf, Annette and Randlkofer, B. and Meiners, T.}, title = {Enemies in low places - insects avoid winter mortality and egg parasitism by modulating oviposition height}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48200}, year = {2006}, abstract = {Oviposition site selection in insects is essential in terms of low egg mortality, high offspring survival and therefore a high reproductive output. Although oviposition height could be a crucial factor for the fitness of overwintering eggs, it has rarely been investigated. In this study the oviposition height of a polyphagous leaf beetle, Galeruca tanaceti Linnaeus in different habitats and at different times of the season was examined and its effect on egg clutch mortality was recorded. The leaf beetle occurs as an occasional pest on several agricultural plants. It deposits its eggs within herbaceous vegetation in autumn. Eggs are exposed to numerous biotic and abiotic mortality factors summarized as egg parasitism and winter mortality. Oviposition height of the leaf beetle was not uniform, but changed significantly with the structure of the habitat and during the season. Mean oviposition height per site (70.2±4.9 cm) was significantly higher than mean vegetation height (28.4±2.4 cm). Height of plants with egg clutches attached and oviposition height were significantly positively correlated. The results suggest that females try to oviposit as high as possible in the vegetation and on the plants selected. In accordance with this, the probability of egg parasitism and of winter egg clutch mortality significantly declined with increasing oviposition height. A preference of G. tanaceti for oviposition sites high up in the vegetation might therefore have evolved due to selection pressures by parasitoids and winter mortality.}, language = {en} } @article{HovestadtMitesserElmesetal.2007, author = {Hovestadt, Thomas and Mitesser, Oliver and Elmes, Graham and Thomas, Jeremy A. and Hochberg, Michael E.}, title = {An Evolutionarily Stable Strategy model for the evolution of dimorphic development in the butterfly Maculinea rebeli, a social parasite of Myrmica Ant Colonies}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48165}, year = {2007}, abstract = {Caterpillars of the butterfly Maculinea rebeli develop as parasites inside ant colonies. In intensively studied French populations, about 25\% of caterpillars mature within 1 year (fast-developing larvae [FDL]) and the others after 2 years (slow-developing larvae [SDL]); all available evidence indicates that this ratio is under the control of egg-laying females. We present an analytical model to predict the evolutionarily stable fraction of FDL (pESS). The model accounts for added winter mortality of SDL, general and kin competition among caterpillars, a competitive advantage of SDL over newly entering FDL (priority effect), and the avoidance of renewed infection of ant nests by butterflies in the coming season (segregation). We come to the following conclusions: (1) all factors listed above can promote the evolution of delayed development; (2) kin competition and segregation stabilize pESS near 0.5; and (3) a priority effect is the only mechanism potentially selecting for. However, given the empirical data, pESS is predicted to fall closer to 0.5 than to the 0.25 that has been observed. In this particular system, bet hedging cannot explain why more than 50\% of larvae postpone growth. Presumably, other fitness benefits for SDL, for example, higher fertility or longevity, also contribute to the evolution of delayed development. The model presented here may be of general applicability for systems where maturing individuals compete in small subgroups.}, language = {en} } @article{PoethkePfenningHovestadt2007, author = {Poethke, Hans J. and Pfenning, Brenda and Hovestadt, Thomas}, title = {The relative contribution of individual and kin selection to the evolution of density-dependent dispersal rates}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48225}, year = {2007}, abstract = {Questions: What are the relative contributions of kin selection and individual selection to the evolution of dispersal rates in fragmented landscapes? How do environmental parameters influence the relative contributions of both evolutionary forces? Features of the model: Individual-based simulation model of a metapopulation. Logistic local growth dynamics and density-dependent dispersal. An optional shuffling algorithm allows the continuous destruction of any genetic structure in the metapopulation. Ranges of key variables: Depending on dispersal mortality (0.05-0.4) and the strength of environmental fluctuations, mean dispersal probability varied between 0.05 and 0.5. Conclusions: For local population sizes of 100 individuals, kin selection alone could account for dispersal probabilities of up to 0.1. It may result in a ten-fold increase of optimal dispersal rates compared with those predicted on the basis of individual selection alone. Such a substantial contribution of kin selection to dispersal is restricted to cases where the overall dispersal probabilities are small (textless 0.1). In the latter case, as much as 30\% of the total fitness of dispersing individuals could arise from the increased reproduction of kin left in the natal patch.}, language = {en} } @article{HovestadtPoethkeMessner2000, author = {Hovestadt, Thomas and Poethke, Hans J. and Messner, Stefan}, title = {Variability in dispersal distances generates typical successional patterns: a simple simulation model}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48178}, year = {2000}, abstract = {More recently, it became clear that conclusions drawn from traditional ecological theory may be altered substantially if the spatial dimension of species interactions is considered explicitly. Regardless of the details of these models, spatially explicit simulations of ecological processes have nearly universally shown that spatial or spatio-temporal patterns in species distributions can emerge even from homogeneous starting conditions; limited dispersal is one of the key factors responsible for the development of such aggregated and patchy distributions (cf., Pacala 1986, Holmes et al. 1994, Molofsky 1994, Tilman 1994, Bascompte and Sole 1995, 1997, 1998, Jeltsch et al. 1999). In line with these ideas, we wish to draw attention to the fact that in heterogeneous landscapes differences in characteristic dispersal distances between species are a sufficient precondition for the emergence of a successional pattern. We will use a simple, spatially explicit simulation program to demonstrate the validity of this statement. We will also show that the speed of the successional progress depends on scale and heterogeneity in the distribution of suitable habitat.}, language = {en} } @article{Bach1989, author = {Bach, Ulrich}, title = {Oral rhetoric in writings for a mixed literate and illiterate audience}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47124}, year = {1989}, abstract = {No abstract available}, language = {en} } @article{Krueger1988, author = {Kr{\"u}ger, H.-P.}, title = {Psychologische Charakteristika der "D{\"u}ker-Aufgabe" oder "Was ist die Leistung an der Leistung?"}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41460}, year = {1988}, abstract = {In den Experimenten H. D{\"u}kers haben die Vpn regelhaft sehr viele sehr einfache hochge{\"u}bte T{\"a}tigkeiten auszuf{\"u}hren. Wird dies durch das Einf{\"u}hren von Zusatzaufgaben kompliziert, kann eine Steigerung der Leistung resultieren (erkl{\"a}rt etwa durch "Reaktive Anspannungssteigerung") oder eine Minderung (wie f{\"u}r das "Unterschwellige Wollen" gezeigt). Eine n{\"a}here Analyse der D{\"u}ker-Aufgabe zeigt, daß die Variable "Arbeitsrhythmus" f{\"u}r diesen Unterschied verantwortlich ist. Wird dieser Rhythmus {\"u}ber eine externe Quelle gegeben oder kann eine Zusatzaufgabe in den vorhandenen Rhythmus integriert werden, resultiert eine Verbesserung. Treten zwei inkompatible Rhythmen in einer Situation auf, resultiert ein drastischer Leistungseinbruch. Diese Systematik wird am pharmakopsychologischen Beispiel einer Statistik {\"u}ber Verkehrsunf{\"a}lle unter Alkoholeinfluß diskutiert.}, language = {de} } @article{ChristlKrimmKraft1990, author = {Christl, Manfred and Krimm, Stefan and Kraft, Arno}, title = {Einige Valene von benzanellierten f{\"u}nfgliedrigen Heteroarenen - Synthesen und NMR-Spektren}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31559}, year = {1990}, abstract = {No abstract available}, language = {de} } @article{Fackler1991, author = {Fackler, Guido}, title = {Musik in Konzentrations- und Vernichtungslagern}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41814}, year = {1991}, abstract = {No abstract available}, subject = {Musik}, language = {de} } @article{Mahsberg1986, author = {Mahsberg, Dieter}, title = {Contact chemoreception of prey in hunting scorpions}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45784}, year = {1986}, abstract = {Scorpions commonly are assumed to hunt on living prey. But under laboratory conditions they also respond very sensitively to dead insects lying on the substrate. In many cases the motionless prey is seized and consumed. It was investigated how this behavior can be elicited. The buthid scorpions Androctonus australis (L.) and Buthus occitanus (Am.) not only find motionless prey again which was stung but managed to escape before dying: They also respond to extracts of the cuticle of prey insects. After touching prey marks' either with the tips of the chelae fingers or the tarsi of the walking legs or the pectine organs specific responses (searching, seizing, feeding) are released at a high rate. Behavioral experiments demonstrate for the first time the chemosensitivity of the pectine organs for which only mechanosensitivity had been proofed formerly. Mechanical as well as contact chemical stimulation of these organs cause scorpions to orient towards the stimulus source which is grasped, retained and consumed or rejected depending on its quality. The probably responsible chemosensitive receptors are already described in the literature. The possible adaptive value and the biological significance of contact chemoreception in prey catching and in other aspects of the life of scorpions is discussed.}, subject = {Skorpion}, language = {en} } @article{KauppStollPreuss1990, author = {Kaupp, Martin and Stoll, H. and Preuss, H.}, title = {Pseudopotential Calculations for Methyl Compounds of Zinc and Magnesium}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-46194}, year = {1990}, abstract = {Pseudopotentials and valence basis sets to be used in calculations for organometallic compounds of zinc and magnesium have been tested in calculations for the M(CH\(_3\))\(_n\) (M = Zn, Mg; n = 1,2) molecules. Valence correlation effects are treated at the SDCI and CEPA levels. The capability of a polarization potential on zinc to account for the valence shell contracting effect of core valence correlation is studied. Properties considered are geometries, force constants, Mulliken populations, ionization potentials, atomization, and binding energies. Differences in bonding between the two dimethyl compounds are discussed.}, subject = {Zink}, language = {en} } @article{Krueger1976, author = {Kr{\"u}ger, Hans-Peter}, title = {N{\"a}he und Distanz in sozialen Beziehungen und ihre quantitative Erfassung}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41446}, year = {1976}, abstract = {Es wird ein neues soziometrisches Verfahren vorgeschlagen, das in seiner Grundlegung von heute {\"u}blichen Wahlverfahren abweicht. Dabei wird versucht, in einem ersten Teil die Gedanken darzustellen, die zur Formulierung der soziometrischen Fragen gef{\"u}hrt haben. Im zweiten Teil wird der Gang der Auswertung dargestellt, der ein differenziertes Bild der untersuchten Personen zeichnen soll. Im Teil "Ergebnisse" wird am Beispiel von Extremgruppen gezeigt, was die Methode leisten kann. Schließlich werden noch m{\"o}gliche Modifikationen des Verfahrens aufgezeigt.}, language = {de} } @article{Marohn1991, author = {Marohn, Frank}, title = {Global sufficiency of extreme order statistics in location models of Weibull type}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47874}, year = {1991}, abstract = {In Janssen and Reiss (1988) it was shown that in a location model of a Weibull type sample with shape parameter -1 < a < 1 the k(n) lower extremes are asymptotically local sufficient. In the present paper we show that even global sufficiency holds. Moreover, it turns out that convergence of the given statistical experiments in the deficiency metric does not only hold for compact parameter sets but for the whole real line.}, subject = {Extremwertstatistik}, language = {de} } @article{BergerEllersiekWesthoffetal.1993, author = {Berger, Susanne and Ellersiek, Ulrike and Westhoff, Peter and Steinm{\"u}ller, Klaus}, title = {Studies on the expression of NDH-H, a subunit of the NAD(P)H-plastoquinone-oxidoreductase of higher-plant chloroplasts}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31283}, year = {1993}, abstract = {The plastid genomes of higher plants contain eleven reading frames (ndhA-K) that are homologous to genes encoding subunits of the mitochondrial NADH-ubiquinone-oxidoreductase (complex I). The carboxyterminal end of the NDH-H subunit from rice (Oryza sativa L.) was expressed as a fusion protein in Escherichia coli and antibodies against the fusion protein were generated in rabbits. The antibody was used to study the expression of NDH-H, and the following results were obtained: (i) NDH-H is expressed in mono- and dicotyledonous plants, (ii) NDH-H is localized on the stroma lamellae of the thylakoid membrane and (iii) NDH-H is expressed in etioplasts. Together with the finding that two other ndh genes (ndhI and ndhK) are expressed in plastids, these results point to the existence of an NAD(P)H-plastoquinone-oxidoreductase on the thylakoid membrane. The possible function of the enzyme in plastids is discussed and it is suggested that it works in balancing the ATP/ADP and the NADPH/NADP ratios during changing external (i.e. light) or internal (i.e. ATP and NADPH demands of biosynthetic pathways of the plastid) conditions.}, language = {en} } @article{BergerEllersiekKinzeltetal.1993, author = {Berger, Susanne and Ellersiek, Ulrike and Kinzelt, Dagmar and Steinm{\"u}ller, Klaus}, title = {Immunopurification of a subcomplex of the NAD(P)H-plastoquinone-oxidoreductase from the cyanobacterium Synechocystis sp. PCC6803}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31249}, year = {1993}, abstract = {An antibody against the NDH-K subunit of the NAD(P)H-dehydrogenase from the cyanobacterium Synechocystis sp. PCC6803 was used to isolate a subcomplex ofthe enzyme from Triton X-lOO solubilized total membranes by immunoaffinity chromatography. The isolated subcomplex consisted of seven major polypeptides with molecular masses of 43, 27, 24, 21, 18, 14 and 7 kDa. The amino-terminal amino acid sequences of the polypeptides were determined. By comparing the sequences with the amino acid sequences deduced from DNA. three proteins were identified as NDH-H (43 kDa). NDH-K (27 kDa) and NDH-J (24 kDa). A fourth subunit (NDH-J, 21 kDa) was identified by Western blot analysis with an NDH-J antibody.}, language = {en} } @article{BergerEllersiekSteinmueller1991, author = {Berger, Susanne and Ellersiek, Ulrike and Steinm{\"u}ller, Klaus}, title = {Cyanobacteria contain a mitochrondrial complex I-homologous NADH-dehydrogenase}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31223}, year = {1991}, abstract = {Thylakoid and cytoplasmic membranes of the cyanobacterium Syncchocystis sp. PCC 6803 were purified by sucrose gradient centrifugation. Both membranes oxidize NADH in a rotenone-sensitive reaction. Antibodies prepared against psbG/ndhKand ndhJ fusion proteins detect the corresponding polypeptides in both membrane preparations. This demonstrates that a NADH-dehydrogenase, homologous to the mitochondrial NADHubiquinone-oxidoreductase (complex I of the respiratory chain) is present in cyanobacteria, The NADH-dehydrogenase can be solubilized with the detergent /-D-dodecylmaltoside. Sedimentation analysis of the solubilized enzyme on a sucrose gradient indicates that it is a multisubunit protein complex.}, language = {en} } @article{MitesserWeisselStrohmetal.2007, author = {Mitesser, Oliver and Weissel, Norbert and Strohm, Erhard and Poethke, Hans-Joachim}, title = {Adaptive dynamic resource allocation in annual eusocial insects: Environmental variation will not necessarily promote graded control}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45412}, year = {2007}, abstract = {Background: According to the classical model of Macevicz and Oster, annual eusocial insects should show a clear dichotomous "bang-bang" strategy of resource allocation; colony fitness is maximised when a period of pure colony growth (exclusive production of workers) is followed by a single reproductive period characterised by the exclusive production of sexuals. However, in several species graded investment strategies with a simultaneous production of workers and sexuals have been observed. Such deviations from the "bang-bang" strategy are usually interpreted as an adaptive (bet-hedging) response to environmental fluctuations such as variation in season length or food availability. To generate predictions about the optimal investment pattern of insect colonies in fluctuating environments, we slightly modified Macevicz and Oster's classical model of annual colony dynamics and used a dynamic programming approach nested into a recurrence procedure for the solution of the stochastic optimal control problem. Results: 1) The optimal switching time between pure colony growth and the exclusive production of sexuals decreases with increasing environmental variance. 2) Yet, for reasonable levels of environmental fluctuations no deviation from the typical bang-bang strategy is predicted. 3) Model calculations for the halictid bee Lasioglossum malachurum reveal that bet-hedging is not likely to be the reason for the graded allocation into sexuals versus workers observed in this species. 4) When environmental variance reaches a critical level our model predicts an abrupt change from dichotomous behaviour to graded allocation strategies, but the transition between colony growth and production of sexuals is not necessarily monotonic. Both, the critical level of environmental variance as well as the characteristic pattern of resource allocation strongly depend on the type of function used to describe environmental fluctuations. Conclusion: Up to now bet-hedging as an evolutionary response to variation in season length has been the main argument to explain field observations of graded resource allocation in annual eusocial insect species. However, our model shows that the effect of moderate fluctuations of environmental conditions does not select for deviation from the classical bang-bang strategy and that the evolution of graded allocation strategies can be triggered only by extreme fluctuations. Detailed quantitative observations on resource allocation in eusocial insects are needed to analyse the relevance of alternative explanations, e.g. logistic colony growth or reproductive conflict between queen and workers, for the evolution of graded allocation strategies.}, subject = {Insekten}, language = {en} } @article{MitesserWeisselStrohmetal.2006, author = {Mitesser, Oliver and Weissel, Norbert and Strohm, Erhard and Poethke, Hans J.}, title = {The evolution of activity breaks in the nest cycle of annual eusocial bees: A simple model of delayed exponential growth}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48196}, year = {2006}, abstract = {Abstract: Background Social insects show considerable variability not only in social organisation but also in the temporal pattern of nest cycles. In annual eusocial sweat bees, nest cycles typically consist of a sequence of distinct phases of activity (queen or workers collect food, construct, and provision brood cells) and inactivity (nest is closed). Since the flight season is limited to the time of the year with sufficiently high temperatures and resource availability, every break reduces the potential for foraging and, thus, the productivity of a colony. This apparent waste of time has not gained much attention. Results We present a model that explains the evolution of activity breaks by assuming differential mortality during active and inactive phases and a limited rate of development of larvae, both reasonable assumptions. The model predicts a systematic temporal structure of breaks at certain times in the season which increase the fitness of a colony. The predicted pattern of these breaks is in excellent accordance with field data on the nest cycle of the halictid Lasioglossum malachurum. Conclusion Activity breaks are a counter-intuitive outcome of varying mortality rates that maximise the reproductive output of primitively eusocial nests.}, language = {en} } @article{PoethkeLiebig2008, author = {Poethke, Hans J. ; and Liebig, J{\"u}rgen}, title = {Risk-sensitive foraging and the evolution of cooperative breeding and reproductive skew}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-48214}, year = {2008}, abstract = {Abstract: Background Group formation and food sharing in animals may reduce variance in resource supply to breeding individuals. For some species it has thus been interpreted as a mechanism of risk avoidance. However, in many groups reproduction is extremely skewed. In such groups resources are not shared equally among the members and inter-individual variance in resource supply may be extreme. The potential consequences of this aspect of group living have not attained much attention in the context of risk sensitive foraging. Results We develop a model of individually foraging animals that share resources for reproduction. The model allows analyzing how mean foraging success, inter-individual variance of foraging success, and the cost of reproduction and offspring raising influence the benefit of group formation and resource sharing. Our model shows that the effects are diametrically opposed in egalitarian groups versus groups with high reproductive skew. For individuals in egalitarian groups the relative benefit of group formation increases under conditions of increasing variance in foraging success and decreasing cost of reproduction. On the other hand individuals in groups with high skew will profit from group formation under conditions of decreasing variance in individual foraging success and increasing cost of reproduction. Conclusion The model clearly demonstrates that reproductive skew qualitatively changes the influence of food sharing on the reproductive output of groups. It shows that the individual benefits of variance reduction in egalitarian groups and variance enhancement in groups with reproductive skew depend critically on ecological and life-history parameters. Our model of risk-sensitive foraging thus allows comparing animal societies as different as spiders and birds in a single framework.}, language = {en} } @article{BonteHovestadtPoethke2009, author = {Bonte, Dries and Hovestadt, Thomas and Poethke, Hans-Joachim}, title = {Evolution of dispersal polymorphism and local adaptation of dispersal distance in spatially structured landscapes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47856}, year = {2009}, abstract = {Many organisms show polymorphism in dispersal distance strategies. This variation is particularly ecological relevant if it encompasses a functional separation of short- (SDD) and long-distance dispersal (LDD). It remains, however, an open question whether both parts of the dispersal kernel are similarly affected by landscape related selection pressures. We implemented an individual-based model to analyze the evolution of dispersal traits in fractal landscapes that vary in the proportion of habitat and its spatial configuration. Individuals are parthenogenetic with dispersal distance determined by two alleles on each individual's genome: one allele coding for the probability of global dispersal and one allele coding for the variance of a Gaussian local dispersal with mean value zero. Simulations show that mean distances of local dispersal and the probability of global dispersal, increase with increasing habitat availability, but that changes in the habitat's spatial autocorrelation impose opposing selective pressure: local dispersal distances decrease and global dispersal probabilities increase with decreasing spatial autocorrelation of the available habitat. Local adaptation of local dispersal distance emerges in landscapes with less than 70\% of clumped habitat. These results demonstrate that long and short distance dispersal evolve separately according to different properties of the landscape. The landscape structure may consequently largely affect the evolution of dispersal distance strategies and the level of dispersal polymorphism.}, language = {en} } @article{KruegerKohnen1980, author = {Kr{\"u}ger, Hans-Peter and Kohnen, Ralf}, title = {Wirkungen von Psychopharmaka auf das L{\"a}rmerleben}, isbn = {0044-2712}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41305}, year = {1980}, abstract = {In allgemeinpsychologischen L{\"a}rmexperimenten ist eine monotone Beziehung zwischen physikalischer Lautst{\"a}rke und erlebter Lautheit bestens abgesichert. In der vorliegenden Arbeit wird gezeigt, daß diese Beziehung unter Medikationsbedingungen nicht gilt. In einem 3 X 3 X 2-faktoriellen Versuchsplan mit den Faktoren physikalische Lautst{\"a}rke (weißes Rauschen in 76, 79 und 82 dB), Medikation (Tranquilizer, Plazebo, Stimulizer) und (niedere bzw. hohe) Ansprechbarkeit auf Medikamente beurteilten insgesamt 54 junge weibliche Versuchspersonen in sechs Durchg{\"a}ngen eine Serie von 12 gleichabst{\"a}ndigen L{\"a}rmstufen von 58 bis 92 dB in bezug auf die erlebte Lautheit. Es war weder eine Hauptwirkung Physikalische Lautst{\"a}rke noch Medikation aufgetreten, daf{\"u}r differenzierte die Schichtungsvariable Ansprechbarkeit auf beiden Faktoren. Eine Interpretation der Ergebnisse sensu Eysencks Drogenpostulat und im Sinne einer Aktivierungstheorie wird vorgenommen. Als Konsequenz f{\"u}r pharmakopsychologisches Experimentieren wird die Forderung erhoben, die in das Experiment eingebrachten Unabh{\"a}ngigen Variablen in ihrer Wirkung auf das Erleben der Vpn zu kontrollieren (subjektive Repr{\"a}sentation des experimentellen Angebotes).}, language = {de} } @article{KruegerKohnen1982, author = {Kr{\"u}ger, Hans-Peter and Kohnen, Ralf}, title = {Tranquillizer effects in an experimental analog of group psychotherapy}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41316}, year = {1982}, abstract = {In an experimental analog of verbal examinations, the call-up situation, the effects of two dosages of a tranquillizing agent (lopirazepam) are compared to placebo treatment. 72 male and female, healthy, young volunteers have been randomly assigned to 12 groups of 6 subjects each. Pulse frequency and performance were registered. The results indicated differential drug effects which were interpreted according to the hypotheses of "differential effects of social stressors". If a situation was highly challenging for a subject, the application of a tranquillizer in an adequately high dosage enabled him to perform well in spite of or because of strong increases in pulse frequency.}, language = {en} } @article{FernerKruegerLehmacheretal.1982, author = {Ferner, U., and Kr{\"u}ger, Hans-Peter and Lehmacher, W. and Rausche, A.}, title = {Auswertung von Verlaufsdaten: Anwendungsorientierte Darstellung anhand von Beispielen aus Pharmakologie und Psychiatrie}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41208}, year = {1982}, abstract = {No abstract available}, language = {de} } @article{KruegerBoneradDennleretal.1992, author = {Kr{\"u}ger, H.-P. and Bonerad, E. M. and Dennler, H. J. and Dunkl, E. and Friese, H. J. and Hain, C. and Kazenwadel, J. and Kohnen, Ralf and Maier, W. and Menzel, M.}, title = {Speech chronemics in drug evaluation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41213}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{HommersEndres1989, author = {Hommers, Wilfried and Endres, Johann}, title = {Zur Wirkung der Entschuldigung auf verbundene Urteile von Strafe und Schadensersatz}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-44118}, year = {1989}, abstract = {Mit einem besonderen multivariaten Urteilsverbund von Ersatz und Strafe als abh{\"a}ngige Variable wurden die Wirkungen von Entschuldigung und Verschulden untersucht. 62 erwachsene Pbn beurteilten in zehn Geschichten {\"u}ber eine Briefmarkenruinierung die angemessene Strafe f{\"u}r den Sch{\"a}diger und verbunden damit dessen angemessene Ersatzleistung an den Gesch{\"a}digten und anschließend in vierzehn Geschichten {\"u}ber eine K{\"o}rperverletzung beim Fußballspielen zus{\"a}tzlich zu Strafe und Ersatz auch das angemessene Schmerzensgeld. In bei den Szenarien ergab sich, daß die Entschuldigung auf das Ersatz-Urteil zwar weniger stark als auf die Strafe wirkte, daß sie aber einen deutlichen Effekt auf das Ersatz-Urteil besaß. Weiterhin wurden die Verschuldensstufen auf beiden Skalen mit anderen relativen Distanzen beurteilt. Die Schmerzensgeld-Urteile im Fußball- Szenario {\"a}hnelten weitgehend den Strafe-Urteilen. Auch die Verteilungsformen der Urteile belegten die unterschiedlichen Verwendungsweisen der Teile des Urteilsverbunds. Die untersuchten Urteile scheinen daher zugleich restitutive und punitive Strukturen aufzuweisen, zu deren quantitativer Erfassung Forschungsans{\"a}tze n{\"o}tig sind, die den hier eingef{\"u}hrten Duplex-Verbund von Strafe und Ersatz beinhalten.}, subject = {Angewandte Psychologie / Zeitschrift / Experimentelle Psychologie}, language = {de} } @article{Hommers1991, author = {Hommers, Wilfried}, title = {Ist das Konzept des Anti-Typus entbehrlich? Eine Antwort des Mischverteilungsansatzes zu einem IPC-Anti-Typ : (Prof. Dr. Dr. G.A. Lienert zum 70. Geburtstag)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-44109}, year = {1991}, abstract = {Durch multidimensional skalierte Strukturen von Pers{\"o}nlichkeitsprofilen wurde eine AlternativHypothese f{\"u}r konfigurationsfrequenzanalytisch erlangte Konfigurationen begr{\"u}ndet. Diese Alternativ- Hypothese besagte, daß die Anti-Typus-Konfigurationen eines dreivariaten 2x2x2- Datenvektors, aber auch die Neutral-Konfigurationen lediglich Folgen der Mischverteilung der Antworten zweier latenter, den Typen-Konfigurationen zuzuordnenden Klassen darstellen. Diese Hypothese wird an einem Datensatz zur Verteilung dichotomisierter Kontroll{\"u}berzeugungen gepr{\"u}ft und best{\"a}tigt. Das dabei konzipierte Konfigurale Fehlermodell (KFM) wird generell zur Erg{\"a}nzung von Konfigurationsfrequenzanalysen (KFA) vorgeschlagen.}, subject = {Klinische Psychologie / Zeitschrift /Psychiatrie / Zeitschrift / Klinische Psychiatrie / Psychotherapie}, language = {de} } @article{Hommers1990, author = {Hommers, Wilfried}, title = {Entschuldigung, Drittentsch{\"a}digung und Schadensh{\"o}he als Einflußgr{\"o}ßen des Urteils von Kindern und Erwachsenen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-44095}, year = {1990}, abstract = {Kinder aus 3 Altersgruppen und Erwachsene beurteilten die verdiente Strafe f{\"u}r in Geschichten dargestellte Sachsch{\"a}den, die aus Versehen oder aus Wut erfolgten. In den Geschichten wurde die Schadensh{\"o}he variiert und außerdem, ob sich der T{\"a}ter entschuldigte oder nicht bzw. ob der Gesch{\"a}digte von einem Dritten eine Entsch{\"a}digung erhielt oder nicht. Entschuldigung und Schadensh{\"o}he hatten altersstabile Wirkungen, Entschuldigung etwa zweimal so stark wie die Schadensh{\"o}he. Entschuldigung und Drittentsch{\"a}digung hatten etwa gleichgroße Wirkungen, außer bei den Erwachsenen, bei denen die Wirkung der Drittentsch{\"a}digung etwa auf die St{\"a}rke der Schadenswirkung abnahm. Der urspr{\"u}ngliche Schaden war auch bei erfolgter Entsch{\"a}digung, wenngleich schw{\"a}cher, wirksam. Die Wirkungen der Ersatzleistung durch den T{\"a}ter auf Strafurteile waren jedoch nicht v{\"o}llig durch die Wirkungen von Entschuldigung und Entsch{\"a}digung, erkl{\"a}rbar.}, subject = {Angewandte Psychologie / Zeitschrift / Experimentelle Psychologie}, language = {de} } @article{HommersStellerZienert1976, author = {Hommers, Wilfried and Steller, Max and Zienert, Hans Joachim}, title = {Psychologische Entlassungsvorbereitung bei jugendlichen Strafgefangenen - Forschungsprogramm eines Vollzugsversuchs}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-44079}, year = {1976}, abstract = {No abstract available}, subject = {Kriminologie / Strafrecht / Zeitschrift / Strafrechtsreform}, language = {de} } @article{MaschwitzFialaLinsenmair1994, author = {Maschwitz, Ulrich and Fiala, Brigitte and Linsenmair, Karl Eduard}, title = {Clerodendrum fistulosum (Verbenanceae), an unspecific myrmecophyte from Borneo with spontaneously opening domatia}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31013}, year = {1994}, abstract = {Clerodendrumjistulosum Becc. is a true myrmecophyte as it offers nesting space for ants in hollow intemodes. In contrast to previous reports our investigations proved that these domatia open by themselves, thus providing cavities for a variety of different ant species. In Sarawak, Malaysia, we did not find an obligate relationship between C. jistulosum and a specific ant-partner. For comparison, studies on herbarium material of other Clerodendrum species were carried out a further species, C. deflexum from the Malay Peninsula and Sumatra presumably also is myrmecophytic.}, language = {en} } @article{WeisingFialaRamlochetal.1990, author = {Weising, K. and Fiala, Brigitte and Ramloch, K. and Kahl, K. and Epplen, J. T.}, title = {Olingonucleotide fingerprinting in angiosperms}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42884}, year = {1990}, abstract = {No abstract available}, language = {en} } @article{Marohn1994, author = {Marohn, Frank}, title = {Asymptotic sufficiency of order statistics for almost regular Weibull type densities}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45837}, year = {1994}, abstract = {Consider a location family which is defined via a Weibull type density having shape parameter a = 1. We treat the problem, which portion of the order statistics is asymptotically sufficient. It turns out that the intermediate order statistics are relevant.}, language = {en} } @article{FalkMarohn1993, author = {Falk, Michael and Marohn, Frank}, title = {Asymptotically optimal tests for conditional distributions}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45823}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{JanssenMarohn1994, author = {Janssen, A. and Marohn, Frank}, title = {On statistical information of extreme order statistics, local extreme value alternatives, and Poisson point processes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45816}, year = {1994}, abstract = {The aim of the present paper is to clarify the role of extreme order statistics in general statistical models. This is done within the general setup of statistical experiments in LeCam's sense. Under the assumption of monotone likelihood ratios, we prove that a sequence of experiments is asymptotically Gaussian if, and only if, a fixed number of extremes asymptotically does not contain any information. In other words: A fixed number of extremes asymptotically contains information iff the Poisson part of the limit experiment is non-trivial. Suggested by this result, we propose a new extreme value model given by local alternatives. The local structure is described by introducing the space of extreme value tangents. It turns out that under local alternatives a new class of extreme value distributions appears as limit distributions. Moreover, explicit representations of the Poisson limit experiments via Poisson point processes are found. As a concrete example nonparametric tests for Frechet type distributions against stochastically larger alternatives are treated. We find asymptotically optimal tests within certain threshold models.}, language = {en} } @article{FalkMarohn1993, author = {Falk, Michael and Marohn, Frank}, title = {Von Mises condition revisited}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45790}, year = {1993}, abstract = {It is shown that the rate of convergence in the von Mises conditions of extreme value theory determines the distance of the underlying distribution function F from a generalized Pareto distribution. The distance is measured in terms of the pertaining densities with the limit being ultimately attained if and only if F is ultimately a generalized Pareto distribution. Consequently, the rate of convergence of the extremes in an lid sample, whether in terms of the distribution of the largest order statistics or of corresponding empirical truncated point processes, is determined by the rate of convergence in the von Mises condition. We prove that the converse is also true.}, language = {en} } @article{FialaMaschwitzPongetal.1989, author = {Fiala, Brigitte and Maschwitz, Ulrich and Pong, Tho, Yow and Helbig, Andreas J.}, title = {Studies of a South East Asian ant-plant association : protection of Macaranga trees by Crematogaster borneensis}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42857}, year = {1989}, abstract = {In the humid tropics of SE Asia there are some 14 myrmecophytic species of the pioneer tree genus Macaranga (Euphorbiaceae). In Peninsular Malaysia a close association exists between the trees and the small, non-stinging myrmicine Crema togas ter borneensis. These ants feed mainly on food bodies provided by the plants and have their colonies inside the hollow intemodes. In a ten months field study we were able to demonstrate for four Macaranga species (M. triloba, M. hypoleuca, M. hosei, M. hulletti) that host plants also benefit considerably from ant-occupation. Ants do not contribute to the nutrient demands of their host plant, they do, however, protect it against herbivores and plant competition. Cleaning behaviour of the ants results in the removal of potential herbivores already in their earliest developmental stages. Strong aggressiveness and a mass recruiting system enable the ants to defend the host plant against many herbivorous insects. This results in a significant decrease in leaf damage due to herbivores on ant-occupied compared to ant-free myrmecophytes as well as compared to non-myrmecophytic Macaranga species. Most important is the ants' defense of the host plant against plant competitors, especially vines, which are abundant in the well-lit pioneer habitats where Macaranga grows. Ants bite off any foreign plant part coming into contact with their host plant. Both ant-free myrmecophytes and non-myrmecophytic Macaranga species had a significantly higher incidence of vine growth than specimens with active ant colonies. This may be a factor of considerable importance allowing Macaranga plants to grow at sites of strongest competition.}, language = {en} } @article{MaschwitzFialaLeeetal.1989, author = {Maschwitz, Ulich and Fiala, Brigitte and Lee, Ying Fah and Chey, Vun Khen and Tan, Fui Lian}, title = {New and little-known myrmecophytic associations from Bornean rain forests}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42957}, year = {1989}, abstract = {The woody climber Millettia niuewenhuisii (Fabaceae) and the shrub Myrmeconauclea strigosa (Rubiaceae) in Sabah, Borneo are associated with ants. The hollow stems of Millettia nieuwenhuisii are regularly inhabited by an aggressive Cladomyrma sp., which keeps pseudococcids inside the stem. On Myrmeconauclea strigosa the ants live in hollow internodal swellings near the end of the branches. In this plant many different ant species use the nesting space in an opportunistic manner.}, language = {en} } @article{WeisingFiala1992, author = {Weising, Kurt and Fiala, Brigitte}, title = {Botanische Eindr{\"u}cke vom Bako-Nationalpark / Sarawak}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42947}, year = {1992}, abstract = {No abstract available}, language = {de} } @article{MaschwitzFialaSawetal.1994, author = {Maschwitz, Ulich and Fiala, Brigitte and Saw, L. G. and Norma-Rashid, Yusoff and Idris, Azarae Haji}, title = {Ficus obscura var. borneensis (Moraceae), a new non-specific ant-plant from Malesia}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42926}, year = {1994}, abstract = {Ficus obscura var. borneensis is a true myrmecophyte. It spontaneously forms cavities (domatia) in parts of its twigs which open by slits, These occur in the internodes and are usually not swollen. The domatia are inhabited by a variety of non-specific tree-living ants including Crematogaster spp., Cataulacus sp., Tetramorium sp., Cardio condyla sp. and Camponotus sp.. Additionally the plant providL a su~ar-containing secretion from extrafloral nectaries on the lower surfaces of the leaves. Examination of herbarium specimens of 37 other South-east Asian Ficus species did not reveal a single specimen with domatia.}, language = {en} } @article{HeisswolfObermaierPoethke2005, author = {Heisswolf, Annette and Obermaier, Elisabeth and Poethke, Hans-Joachim}, title = {Selection of large host plants for oviposition by a monophagous leaf beetle: nutritional quality or enemy-free space?}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47728}, year = {2005}, abstract = {1. Oviposition site selection is crucial for the reproductive success of herbivorous insects. According to the preference-performance hypothesis, females should oviposit on host plants that enhance the performance of their offspring. More specifically, the plant vigour hypothesis predicts that females should prefer large and vigorously growing host plants for oviposition and that larvae should perform best on these plants. 2. The present study examined whether females of the monophagous leaf beetle Cassida canaliculata Laich. (Coleoptera: Chrysomelidae) prefer to oviposit on large host plant individuals of the meadow clary and whether large host plants are of higher nutritional quality than small host plants. Subsequently, it was tested whether the female preference correlates with offspring performance and survival. 3. In the field, females preferred large host plant individuals for oviposition and host plant quality, i.e. leaf nitrogen content, was significantly higher in leaves of large than of small host plants. 4. In the laboratory, larval development time was shorter on leaves of large host plant individuals than on small host plant individuals, but this could not be shown in the field. 5. However, a predator-exclusion experiment in the field resulted in a higher survival of larvae on large host plants than on small host plants when all predators had free access to the plants. On caged host plants there was no difference in survival of larvae between plant size categories. 6. It is concluded that females of C. canaliculata select oviposition sites that enhance both performance and survival of their offspring, which meets the predictions of the plant vigour hypothesis.}, subject = {Insekten}, language = {en} } @article{HeisswolfPoethkeObermaier2006, author = {Heisswolf, Annette and Poethke, Hans-Joachim and Obermaier, Elisabeth}, title = {Multitrophic influences on oviposition site selection in a specialized leaf beetle at multiple spatial scales}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47738}, year = {2006}, abstract = {Egg distribution in herbivorous beetles can be affected by bottom-up (host plant), and by top-down factors (parasitoids and predators), as well as by other habitat parameters. The importance of bottom-up and top-down effects may change with spatial scale. In this study, we investigated the influence of host plant factors and habitat structure on egg distribution in the leaf beetle Cassida canaliculata Laich. (Coleoptera: Chrysomelidae), a monophagous herbivore on Salvia pratensis L. (Lamiales: Lamiaceae), on four spatial scales: individual host plant, microhabitat, macrohabitat, and landscape. At the individual host plant scale we studied the correlation between egg clutch incidence and plant size and quality. On all other scales we analyzed the relationship between the egg clutch incidence of C. canaliculata and host plant percentage cover, host plant density, and the surrounding vegetation structure. Vegetation structure was examined as herbivores might escape egg parasitism by depositing their eggs on sites with vegetation factors unfavorable for host searching parasitoids. The probability that egg clutches of C. canaliculata were present increased with an increasing size, percentage cover, and density of the host plant on three of the four spatial scales: individual host plant, microhabitat, and macrohabitat. There was no correlation between vegetation structure and egg clutch occurrence or parasitism on any spatial scale. A high percentage of egg clutches (38-56\%) was parasitized by Foersterella reptans Nees (Hymenoptera: Tetracampidae), the only egg parasitoid, but there was no relationship between egg parasitism and the spatial distribution of egg clutches of C. canaliculata on any of the spatial scales investigated. However, we also discuss results from a further study, which revealed top-down effects on the larval stage.}, subject = {Eiablage}, language = {en} } @article{HeisswolfReichmannPoethkeetal.2009, author = {Heisswolf, Annette and Reichmann, Stefanie and Poethke, Hans-Joachim and Schr{\"o}der, Boris and Obermaier, Elisabeth}, title = {Habitat quality matters for the distribution of an endangered leaf beetle and its egg parasitoid in a fragmented landscape}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47740}, year = {2009}, abstract = {Fragmentation, deterioration, and loss of habitat patches threaten the survival of many insect species. Depending on their trophic level, species may be differently affected by these factors. However, studies investigating more than one trophic level on a landscape scale are still rare. In the present study we analyzed the effects of habitat size, isolation, and quality for the occurrence and population density of the endangered leaf beetle Cassida canaliculata Laich. (Coleoptera: Chrysomelidae) and its egg parasitoid, the hymenopteran wasp Foersterella reptans Nees (Hymenoptera: Tetracampidae). C. canaliculata is strictly monophagous on meadow sage (Salvia pratensis), while F. reptans can also parasitize other hosts. Both size and isolation of habitat patches strongly determined the occurrence of the beetle. However, population density increased to a much greater extent with increasing host plant density ( = habitat quality) than with habitat size. The occurrence probability of the egg parasitoid increased with increasing population density of C. canaliculata. In conclusion, although maintaining large, well-connected patches with high host plant density is surely the major conservation goal for the specialized herbivore C. canaliculata, also small patches with high host plant densities can support viable populations and should thus be conserved. The less specialized parasitoid F. reptans is more likely to be found on patches with high beetle density, while patch size and isolation seem to be less important.}, subject = {Fragmentierung}, language = {en} } @article{PoethkeHovestadtMitesser2003, author = {Poethke, Hans-Joachim and Hovestadt, Thomas and Mitesser, Oliver}, title = {Local extinction and the evolution of dispersal rates: Causes and correlations}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47718}, year = {2003}, abstract = {We present the results of individual-based simulation experiments on the evolution of dispersal rates of organisms living in metapopulations. We find conflicting results regarding the relationship between local extinction rate and evolutionarily stable (ES) dispersal rate depending on which principal mechanism causes extinction: if extinction is caused by environmental catastrophes eradicating local populations, we observe a positive correlation between extinction and ES dispersal rate; if extinction is a consequence of stochastic local dynamics and environmental fluctuations, the correlation becomes ambiguous; and in cases where extinction is caused by dispersal mortality, a negative correlation between local extinction rate and ES dispersal rate emerges. We conclude that extinction rate, which both affects and is affected by dispersal rates, is not an ideal predictor for optimal dispersal rates.}, subject = {Ausbreitung}, language = {en} } @article{KohnenKrueger1986, author = {Kohnen, Ralf and Kr{\"u}ger, Hans-Peter}, title = {Drug Effects on Human Social Behavior: Chances in Talking Activities Induced by CGP 361/A, a Beta-blocking Agent}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41228}, year = {1986}, abstract = {No abstract available}, language = {en} } @article{Hommers1988, author = {Hommers, Wilfried}, title = {Entschuldigung und Entsch{\"a}digung f{\"u}r einen Diebstahl}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-44002}, year = {1988}, abstract = {Kinder aus drei Altersgruppen und Etwachsene beuneilten, wie schlimm jeweils zwei "Diebstahl" -Handlungen von unterschiedlich viel S{\"u}ßigkeitsmengen waren. Die Informationen {\"u}ber die gestohlenen Mengen wurden kombinien dargeboten mit dem Hinweis, daß sich der T{\"a}ter entschuldigte oder nicht bzw. daß ein Dritter dem Leidtragenden den Verlust entsch{\"a}digte oder nicht. Entschuldigung und Schadensh{\"a}he wirkten in allen Altersgruppen und im Vergleich miteinander gleich stark. Bei den beiden j{\"u}ngeren Gruppen wirkten alle drei variierten Geschichtenteile in gleichem Ausmaß auf die Uneile ein. Die Dritt-Entsch{\"a}digung wirkte bei Vorsch{\"u}lern und 7j{\"a}hrigen jedoch st{\"a}rker als bei lOj{\"a}hrigen und Etwachsenen. Die Bedeutung des Auftretens oder Fehlens von Alterstrends f{\"u}r die Entwicklung des moralischen Urteils wird diskutiert.}, subject = {P{\"a}dagogische Psychologie}, language = {de} } @article{Hommers1987, author = {Hommers, Wilfried}, title = {Ist "Voller Ersatz" immer "Ad{\"a}quater Ersatz"? Zu einer Diskrepanz zwischen Regelungen des Gesetzbuches im EXODUS und der Ad{\"a}quatheits-These der Equity-Theorie}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43993}, year = {1987}, abstract = {Die Aussagen der Equity-Theorie und die Aussagen des Gesetzbuches des Alten Bundes im EXODUS (2. Moses, 21. und 22. Kapitel) sind grundverschieden: die letzteren normativ bestimmend, die ersteren empirisch feststellend. Was kann ihr Vergleich der empirischen Psychologie schon einbringen? Die Antwort gibt die folgende Darstellung, in der zun{\"a}chst Zweifel an einer impliziten Universalit{\"a}tsthese der EquityTheorie bez{\"u}glich der vollen Ersatzleistung begr{\"u}ndet werden und dann {\"u}ber zwei Experimente berichtet wird, die die einleitende Frage der Cberschrift auf empirischer Basis zu verneinen erlauben. Die Leistung, "Voller Ersatz" ist entgegen der These der Equity-Theorie weder ftir alle F{\"a}lle, noch ftir alle Individuen der ad{\"a}quate Ersatz. Vielmehr scheint es mehrfache, durch eine Abh{\"a}ngigkeitsstruktur verbundene Ad{\"a}quatheitsnormen zu geben.}, language = {de} } @article{Hommers1983, author = {Hommers, Wilfried}, title = {Subtraktive Hyperkonkavit{\"a}t in der funktionalen Beziehung von zuk{\"u}nftigem Wert und Zeitspanne bis zu seiner Auszahlung: Ein gruppenstatistischer Nachgesang als differentialpsychologischer Auftakt}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43989}, year = {1983}, abstract = {Ziel der Untersuchung war die Pr{\"u}fung der humanpsychologischen Validit{\"a}t von quantitativen neobehavioristischen Theorie~ {\"u}ber den Zusammenhang von 'Verten und Zeitspannen bis zu ihren Auszahlungen. Der sofort erforderliche Geldbetrag f{\"u}r den Verzicht auf eine zuk{\"u}nftige Geldauszahlung und der erforderliche zuk{\"u}nftige Geldbetrag f{\"u}r den Verzicht auf einen gegenw{\"a}rtig verf{\"u}gbaren Gcldbetrag war unter Variation der Geldbetr{\"a}ge und der Zeitspannen einzusch{\"a}tzen. Als Ergebnis wurde varianzanalytisch unter Ber{\"u}cksichtigung der Utilit{\"a}t des Geldes eine subtraktive Beziehung zwischcn zuk{\"u}nftigem Geldbetrag und der Zeitspanne bis zu seiner Auszahlung bestimmt. In diese subtraktive Beziehung gingen die Geldbetr{\"a}ge und die Zeitspannen als Potenzfunktionen ein. Durch die Potenzfunktion der Zeit verl{\"a}uft daher die Kurve des gegenw{\"a}rtigen Wertes einer zuk{\"u}nftigen Auszahlung konkaver als die e-Funktion, so daß damit Vornahme{\"a}nderungen oder impulsive Reaktionen erkl{\"a}rt wer13C NMR Spectra of Some Tricyclo[2.2.0.02,6]hexane Derivatives : Unexpected High Field Absorptions Due to Additive gamma-anti Subsituent Effects}, isbn = {x}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41620}, year = {1983}, abstract = {By means of the BC NMR spectra of tricyclo{2.2.0~rfJ6Jhexane and thirteen of its derivatives the effects of substituents in endo-3- and endo-5-positions on the HC chemical shifts have been determined. The y-anti effects are at least as Jarge as in monosubstituted cyc1obutanes, where the shielding values of second-row hetero substituents exceed those in unstrained systems by far, and higher-row and carbon substituents still cause substantial upfield shifts. In the title system the y-anti effect of a substituent in the endo-3- and endo-5-position are operative additively, and thus shift the absorption of C-J upfieJd by a maximum of 27 ppm with respect to the unsubstituted hydrocarbon.}, language = {en} } @article{HarthPeter1992, author = {Harth-Peter, W.}, title = {Frieden und Erziehung - Maria Montessori und die Welt von morgen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47117}, year = {1992}, abstract = {No abstract available}, subject = {Erziehung}, language = {de} } @article{Krueger1989, author = {Kr{\"u}ger, Hans-Peter}, title = {Speech chronemics - a hidden dimension of speech. Theoretical background, measurement, and clinical validity}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41037}, year = {1989}, abstract = {Der Begriff "speech chronemics" wird eingef{\"u}hrt, um eine Forschungsrichtung zu charakterisieren, die aus den physikalischen Qualit{\"a}ten des Sprachsignals lediglich das Muster von "an" ("Sprechen") und "aus" ("Pausieren") herauszieht. Die Forschungen zu diesen on-off Mustern lassen sich in die methodischen Dimensionen "zeitliche Einheit", "Zahl der Sprecher" und "Art der prosodischen Maße" gliedern. Es wird gezeigt, daß die Entscheidung eines Untersuchers f{\"u}r eine bestimmte Methodik das Ergebnis seiner Untersuchung nicht unerheblich vorausbestimmt. Es wird dann mit dem Logoport ein neues tragbares Meßinstrument vorgestellt, das es erlaubt, das Sprechverhalten von Probanden bis zu 24 Stunden lang in deren normaler Umgebung aufzuzeichnen. Es werden zwei Experimente beschrieben. Im ersten wird gezeigt, daß die Messung von Artiku1ationspausen valide den psychophysiologischen Aktivierungsstatus abbilden kann. In der zweiten Studie wird die soziotrope Wirksamkeit einer neuen betablockierenden Substanz aufgezeigt: in einer Langzeitstudie verbesserte sich das Interaktionsverhalten von Probanden, die sich sozial schwer tun, im Vergleich zu Plazebo und zum Verhalten von Personen ohne solche Schwierigkeiten. Schließlich wird mit Blick auf neue Studien die Wichtigkeit einer {\"u}berlegten theoretischen Einbettung und einer Standardisierung von situativen und methodischen Merkmalen betont.}, language = {en} } @article{KruegerLienert1980, author = {Kr{\"u}ger, Hans-Peter and Lienert, Gustav A.}, title = {Eine exakte nonparametrische Pr{\"u}fung auf Kovariation zweier autokorrelierter Zeitreihen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41049}, year = {1980}, abstract = {H{\"a}ufig tritt in der psychologischen und psychiatrischen Forschung die Frage nach dem Zusammenhang zwischen zwei oder mehreren Zeitreihen auf. {\"u}bliche Kovariationsmaße versagen dabei vor allem deshalb, weil sie nicht inferentiell ausgewertet werden k{\"o}nnen. An einem Beispiel aus der Pharmakopsychologie wird ein auf Pfanzagl (1963) zur{\"u}ckgehendes Verfahren vorgeschlagen, das es erlaubt, voraussetzungsfrei den Zusammenhang zwischen autokorrelierten Meßwertreihen zu pr{\"u}fen. Als Unabh{\"a}ngigkeit zweier Zeitreihen wird definiert, daß zwischen ihnen bei Erhaltung der Autokorrelation kein h{\"o}herer Zusammenhang besteht als nach dem Zufall zu erwarten.}, language = {de} } @article{HellerKrueger1974, author = {Heller, Otto and Kr{\"u}ger, Hans-Peter}, title = {Direkte Skalierung in der Soziometrie}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-40918}, year = {1974}, abstract = {Ausgehend von einigen Bedenken gegen die Verwendung von Wertungsfragen in der Soziometrie wird ein Verfahren vorgeschlagen, in dem konkretes Interaktionsverhalten (Sprechen und {\"A}rgern) direkt skaliert wird. Der Zusammenhang zwischen direkter Skalierung, Bezugssystemtheorie und ph{\"a}nomenad{\"a}quater Verwendung von Skalen wird diskutiert. Jedes Gruppenmitglied (untersucht wurden Schulklassen) stuft seinen Kontakt zu jedem anderen ein. Daraus ergibt sich ein Sozioprofil, dessen Repr{\"a}sentanz f{\"u}r das Sozialverhalten beispielhaft an Extremgruppen gezeigt wird. Es kann nachgewiesen werden, daß die bis jetzt unterstellte Trennung gemischtgeschlechtlicher Gruppen in zwei eingeschlechtliche Untergruppen ein methodenabh{\"a}ngiges Ergebnis der Wahlverfahren Morenoscher Pr{\"a}gung ist.}, language = {de} } @article{Krueger1979, author = {Kr{\"u}ger, Hans-Peter}, title = {Zur Anwendungsindikation von nonparametrischen Pr{\"a}diktionsverfahren}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-40925}, year = {1979}, abstract = {No abstract available}, language = {de} } @article{KohnenKrueger1982, author = {Kohnen, Ralf and Kr{\"u}ger, Hans-Peter}, title = {Tranquillizer effects in an experimental analog of verbal examinations}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41617}, year = {1982}, abstract = {In an experimental analog of verbal examinations, the call-up situation, the effects of two dosages of a tranquillizing agent (lopirazepam) are compared to placebo treatment. 72 male and female, healthy, young volunteers have been randomly assigned to 12 groups of 6 subjects each. Pulse frequency and performance were registered. The results indicated differential drug effects which were interpreted according to the hypotheses of "differential effects of social stressors". If a situation was highly challenging for a subject, the application of a tranquillizer in an adequately high dosage enabled him to perform well in spite of or because of strong increases in pulse frequency.}, language = {en} } @article{KruegerLienertEyeetal.1979, author = {Kr{\"u}ger, Hans-Peter and Lienert, Gustav A. and Eye, Alexander von and Gebert, Alfred}, title = {Eine inferentielle nonparametrische Clusteranalyse mit Alternativdaten}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41606}, year = {1979}, abstract = {Am Konzept der Axialsymmetrie multivariater Daten wird eine Methode entwickelt, mit der statistisch Cluster aus gleich interkorrelierenden Variablen gebildet werden k{\"o}nnen. Es wird eine heuristische Vorgehensweise empfohlen, die nicht wie die {\"u}bliche deskriptive Clusteranalyse willk{\"u}rliche Entscheidungen {\"u}ber Abbruchkriterien u.{\"a}. verlangt. Die vorgeschlagene Methode ist insbesondere zur mediandichotomierte kontinuierliche Variablen geeignet. Werden echte Alternativdaten verwendet, resultieren Cluster, die zus{\"a}tzlich zur gleichen Interkorrelation Variablen mit gleicher Schwierigkeit aufweisen. Das Vorgehen wird an einem Beispiel illustriert.}, subject = {Psychologie / Zeitschrift}, language = {de} } @article{KruegerSchoech1993, author = {Kr{\"u}ger, Hans-Peter and Sch{\"o}ch, Heinz}, title = {Absenkung der Promillegrenze. Ein zweifelhafter Beitrag zur Verkehrssicherheit}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41911}, year = {1993}, abstract = {No abstract available}, language = {de} } @article{Hommers1988, author = {Hommers, Wilfried}, title = {Die Wirkungen von Entschuldigung und Dritt-Entsch{\"a}digung auf Strafurteile {\"u}ber zwei Schadensarten}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43978}, year = {1988}, abstract = {Kinder aus 3 Altersgruppen und Erwachsene beurteilten die verdiente Strafe aufgrund von Geschichten {\"u}ber zwei aus Wut erfolgte Sch{\"a}digungen (Sachschaden und K{\"o}rperschaden). Die Geschichten informierten außerdem dar{\"u}ber, ob sich der T{\"a}ter entschuldigte oder ob ein Dritter dem Leidtragenden eine materielle Entsch{\"a}digung gab. Die Dritt-Entsch{\"a}digungsinformation reduzierte die Strafurteile der Vor- und Grundsch{\"u}ler geringf{\"u}gig weniger als die Entschuldigungsinformation. Bei Erwachsenen war der Dritt-Entsch{\"a}digungseffekt jedoch erheblich geringer als der Entschuldigungseffekt. Diese Ergebnisse trafen sowohl auf das mittlere Strafurteil als auch auf den Gebrauch von Strafe zu. Nur die Erwachsenen bestraften den K{\"o}rperschaden mehr als den' Sachschaden.}, subject = {Sozialpsychologie}, language = {de} } @article{HommersEndres1989, author = {Hommers, Wilfried and Endres, Johann}, title = {Strafe und Schadensersatz im Urteilsverbund}, isbn = {0044-3514}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43946}, year = {1989}, abstract = {Wenn Strafe und Schadenersatz gemeinsam im Urteil verwendet werden, bilden sie methodisch einen besonderen multi variaten Urteils komplex, weil auch ihre Summe psychologisch interpretierbar ist. Anhand der Effekte dieses Verbunds, den auch das Zivil- und Strafrecht kennt, wurde gepr{\"u}ft, ob der Einsatz eines Doppel-Urteils f{\"u}r die Erforschung sozialer Kognitionen erforderlich ist. Dazu beurteilten Pbn in zwei Untersuchungen Informationen {\"u}ber sch{\"a}digende Handlungen mit einem univariaten Ersatz-Urteil (N = 124) bzw. mit dem Doppel-Urteil von Ersatz und Strafe (N = 143). Als Folge der Einf{\"u}hrung des Doppel-Urteils ergab sich, daß die H{\"a}ufigkeiten von {\"U}ber kompensation f{\"u}r absichtliche Sch{\"a}digungen erheblich reduziert wurden. Jedoch wurden zugleich die H{\"a}ufigkeiten von vollem Ersatz bei diesen Bedingungen betr{\"a}chtlich erh{\"o}ht. Bei versehentlichen Sch{\"a}digungen hatte die Einf{\"u}hrung des Doppel-Urteils keinen Effekt. Weiterhin blieb dort der univariate Befund multipler Modalwerte erhalten. In den Mittelwerten hatte das Mitverschulden des Gesch{\"a}digten nur im Schadensersatz-Urteil einen Effekt, nicht jedoch in den Strafurteilen. Außerdem blieb die f{\"u}r die Schadensersatz- Urteile charakteristische Non-Additivit{\"a}t von Verschulden und Mitschuld bestehen.}, subject = {Sozialpsychologie}, language = {de} } @article{HommersTrempler1978, author = {Hommers, Wilfried and Trempler, Volker}, title = {Zum Verhalten von Lernbehinderten in Zwei-Personen-Spielen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43921}, year = {1978}, abstract = {Die Methode der Matrix-Spiele, die in sozialpsychologischen Untersuchungen zur Erfassung von Kooperativit{\"a}t und Kompetitivit{\"a}t verwendet wurde, sollte auf ihre Tragf{\"a}higkeit in der Lernbehinderten-Forschung gepr{\"u}ft werden. Es wird {\"u}ber eine Untersuchung berichtet, in der zwei Nicht-Nullsummenspiele und ein Nullsummenspiel mit 56 lernbehinderten und 40 Normalsch{\"u}ler-Vpn durchgeftihrt wurden. Der Vergleich von Wahlh{\"a}ufigkeiten zwischen Lernbehinderten und Normalsch{\"u}lern zeigte einige Unterschiede, die auf Retardierungen im-Bereich der Kooperativit{\"a}t-Kompetitivit{\"a}t-Entwicklung hinwiesen. Die Diskussion der Ergebnisse unterst{\"u}tzt aber an Hand der Wahlbegr{\"u}ndungen nicht eine sozialpsychologische, sondern eine risikobezogene Interpretation des Verhaltens der Vpn.}, subject = {Sonderp{\"a}dagogik}, language = {de} } @article{KruegerStuckenbergVollrath1988, author = {Kr{\"u}ger, Hans-Peter and Stuckenberg, Annette and Vollrath, Mark}, title = {Stability and Variability in Interactive Behavior as Measured by Methods of "Speech Chronemics"}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-40908}, year = {1988}, abstract = {Dyadic interaction is modelled os an adaptive process between personality of the partners involved and the characteristics of the theme. The theme structure and the principles which control the adaptation process are referred to as "syntality". The material of the studies reported are the speech signals of the verbal interaction reduced to an on-off pattern. In a first study individual speech behavior was found to remain stable in dyads even if partners changed. The second study showed the stability of the speech patterns for different interaction themes even if dyads changed. These apparently contradictory results are reconciled by introducing the concept of "adaptive stability". Individual speech behavior does not happen at a stable activity level, but is characterized by a constant relationship (" less" or "more") to the respective activity of the other partner.}, language = {en} } @article{ArbuznikovPlakhutin1993, author = {Arbuznikov, Alexey V. and Plakhutin, A. B.}, title = {Symmetric vector coupling coefficients for atomic non-Roothaan states in the d\(^N\) configuration}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47062}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{ArbuznikovPlakhutin1992, author = {Arbuznikov, Alexey V. and Plakhutin, B. N.}, title = {Exact expression for the Fock operator in the unified coupling operator method}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47053}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{Linsenmair1968, author = {Linsenmair, Karl Eduard}, title = {Zur Lichtorientierung der Walzenspinnen (Arachnida, Solifugae)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-46869}, year = {1968}, abstract = {No abstract available}, language = {de} } @article{Hommers1976, author = {Hommers, Wilfried}, title = {Zur Frage der Anwendungsbedingungen der Erwartungsmaximierung bei Entscheidungen {\"u}ber Spiele gegen die Natur}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43917}, year = {1976}, abstract = {Von Aussagen von Vpn ausgehend wird eine Erkl{\"a}rung f{\"u}r die Nichtanwendung der Erwartungsmaximierung in Entscheidungen zwischen Spielen gegen die Natur gegeben, die in einer Untersuchung empirisch best{\"a}tigt wurde. Danach h{\"a}ngt die Verwendung der Erwartungsmaximierung von situationalen Bedingungen ab, die den Vpn eine Anwendung des Wahrscheinlichkeitsbegriffs f{\"u}r eine Menge gleichartiger Zufalls experimente nahelegen. Der Befund der Untersuchung kann auch durch die PortfolioTheorie erkl{\"a}rt werden. Zur Beseitigung dieses Dilemmas wird auf die Introspektion zur{\"u}ckgegriffen.}, subject = {Angewandte Psychologie}, language = {de} } @article{HommersStellerZienert1976, author = {Hommers, Wilfried and Steller, Max and Zienert, Hans-Joachim}, title = {M{\"o}glichkeiten psychologischer Entlassungsvorbereitung bei jugendlichen Strafgefangenen : Forschungsprogramm eines Vollzugsversuchs - Modell-Lernen im Rahmen von Rollen-Trainings}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43906}, year = {1976}, abstract = {No abstract available}, language = {de} } @article{HommersHasenpusch1975, author = {Hommers, Wilfried and Hasenpusch, Burkhard}, title = {Beitrag zur Messung des Spannungsbogens von jugendlichen Delinquenten}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43889}, year = {1975}, abstract = {Ziel der Untersuchung war, erste Informationen {\"u}ber die Verwendungsf{\"a}higkeit einer im amerikanischen Raum entwickelten Auswahlliste zur Messung des Spannungsbogens zu gewinnen. Dazu wurden mit 234 Jugendstrafgefangenen verschiedenen Alters die Verfahren Auswahlliste und Verhaltensprobe zur Erhebung des Spannungsbogens durchgef{\"u}hrt. Außerdem wurden Daten zum hypothetischen Sparverhalten der Vpn erhoben. Durch klassische und probabilistische Itemanalyse ergaben sich verschiedene Skalen aus der Auswahlliste, die alle in keiner Beziehung zum Alter und dem hypothetischen Sparverhalten standen. Verschiedene Nebenbefunde werden im Hinblick auf ihre Konsequenzen f{\"u}r die Verwendungsf{\"a}higkeit der Auswahlliste und auf Erkl{\"a}rungsm{\"a}glichkeiten diskutiert.}, subject = {Angewandte Psychologie}, language = {de} } @article{HommersTrempler1979, author = {Hommers, Wilfried and Trempler, V.}, title = {Zur Problematik sozialpsychologischer Interpretation des Verhaltens von Kindern in Zwei-Personen-Spielen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43860}, year = {1979}, abstract = {No abstract available}, subject = {Psychologie}, language = {de} } @article{Hommers1977, author = {Hommers, Wilfried}, title = {Zur Skalierung des subjektiven Werts von Zensuren bei Schulkindern}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43855}, year = {1977}, abstract = {Der Schwerpunkt empirisch-psychologischer Auseinandersetzung mit der Problematik von Schulzensuren lag bei der Pr{\"u}fung ihrer Testg{\"u}tekriterien. Diese Arbeit befaßt sich dagegcn mit dem subjektiven Wert von Schulnoten. Vorrangige Aufgabe war bislang die Erstellung eines Meßverfahrens f{\"u}r den subjektiven Wert der Schulnoten. Allgemeines Kennzeichen des hier benutzten Verfahrens ist seine entsehcidungstheoretische Grundlegung und die Zielsetzung, die Ab'st{\"a}nde der Zensurenwerte zu definieren. Untcr Verwendung dieser Methode liegen Arbeiten von BECKER und SIEGEL [1J, SCHMIDT [6J und SCHl\'IIDT u. a. [7J vor. Den Untersuchungen ist gemeinsam, daß als Ypn mindestens 17 Jahre alte Sch{\"u}ler oder Studenten mitwirkten. Auch in der methodisch anders ansetzenden Arbeit von M{\"U}LLERFOHRBRODT und DANN [5J zu diesem Problembereich stammten die Vpn aus der umschriehenen Altcrsgruppe. {\"U}bergeordnetes Ziel dieser Arbeit ist deswegen die Pr{\"u}fung der Durchf{\"u}hrbarkeit einer entscheidungstheoretischen Skalierungsmethode hei Sch{\"u}lern j{\"u}ngeren Alters.}, subject = {Psychologie}, language = {de} } @article{HommersGloth1978, author = {Hommers, Wilfried and Gloth, Ingola}, title = {Alternativenart, pers{\"o}nliche Gl{\"u}ckszahl und magisch animistische Begr{\"u}ndungen von Entscheidungen bei Risiko}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43822}, year = {1978}, abstract = {Durch Variation des Konfliktgehalts zwischen zwei Alternativen und damit der Begr{\"u}ndbarkeit von Entscheidungen sollte gepr{\"u}ft werden, ob das Auftreten magisch-animistischer Begr{\"u}ndungen bei Schulkindern nur Begr{\"u}ndungsschwierigkeiten anzeigt und nicht magisch-animistisches Denken. Mit Hilfe einer erfragten Gl{\"u}ckszahl beim W{\"u}rfeln sollte außerdem die Validit{\"a}t des magisch-animistisehen Gehalts von derartigen Begr{\"u}ndungen untersucht werden. Es zeigte sich bei 61 11j{\"a}hrigen Vpn, daß magisch-animistisch klassifizierte Antworten mit dem Konfliktgehalt der Alternativen zusammenhingen und bei eine Gl{\"u}ckszahl besitzenden Vpn, die diese in den Entscheidungen ber{\"u}cksichtigen, h{\"a}ufiger vorkommen als bei Vpn zweier Vergleichsgruppen.}, subject = {Angewandte Psychologie}, language = {de} } @article{Hommers1976, author = {Hommers, Wilfried}, title = {Ein Beitrag {\"u}ber den Einfluß von Durchf{\"u}hrungsbedingungen auf das Entscheidungsverhalten von lernbehinderten Sondersch{\"u}lern}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43810}, year = {1976}, abstract = {No abstract available}, subject = {Sonderp{\"a}dagogik}, language = {de} } @article{Hommers1985, author = {Hommers, Wilfried}, title = {Zur bipolaren moralischen Beurteilung materieller Reparationen von unterschiedlich entstandenen Sachsch{\"a}digungen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43802}, year = {1985}, abstract = {Materiell-reparative Handlungen wurden auf einer bipolaren Gut-B{\"o}se-Skala beurteilt, da bisherige Arbeiten zu diesem Thema unter Verwendung der unipolaren Strafe-Skala unklare Ergebnisse zeigten. 40 Erwachsene und 80 Kinder h{\"o}rten 12 Geschichten {\"u}ber die Ruinierung von Briefmarken, in denen die Tatentstehung (Verschulden) und die H{\"o}he der Ersatzleistung variiert wurden. Die Ergebnisse besagten im einzelnen, daß Kinder des Vor- und Grundschulalters st{\"a}rker die Ersatzleistung als das Verschulden in Gut-B{\"o}se-Urteilen ber{\"u}cksichtigten und daß Erwachsene beide Informationen gleichstark in ihre Gut-B{\"o}se-Urteile einfließen ließen. Bei beiden Gruppen schienen Verschulden und Ersatz jedoch mit unterschiedlicher Absicherung nicht-additiv zusammenzuwirken. Die Ergebnisse enthielten eine Replikation US-amerikanischer Befunde mit der Strafe-Skala und diesem Szenario, wiesen aber dar{\"u}ber hinaus auf einen Entwicklungstrend in der NonAdditivit{\"a}t hin. Außerdem ließen sie Zweifel an der Allgemeing{\"u}ltigkeit von Aussagen der sozialpsychologischen Equity-Theorie aufkommen, da Schilderungen vollst{\"a}ndiger Ersatzleistungen in keiner Gruppe unabh{\"a}ngig vom Verschulden beurteilt wurden.}, subject = {Angewandte Psychologie}, language = {de} } @article{Krueger1990, author = {Kr{\"u}ger, Hans-Peter}, title = {Absolute Fahrunt{\"u}chtigkeit bei 1.0 Promille - die falsch gesetzte Grenze}, isbn = {0006-5250}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41920}, year = {1990}, abstract = {No abstract available}, language = {de} } @article{Fackler1994, author = {Fackler, Guido}, title = {Ein Geschenk trostlosester Unkultur an das erste Kulturvolk der Erde : Zum Umgang mit fremdartiger Jazzmusik im Freiburg der Weimarer Republik}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41889}, year = {1994}, abstract = {No abstract available}, subject = {Jazz}, language = {de} } @article{HarthPeter1988, author = {Harth-Peter, Waltraud}, title = {Bildsamkeit und Hoffnung}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43356}, year = {1988}, abstract = {No abstract available}, subject = {P{\"a}dagogik}, language = {de} } @article{HarthPeter1991, author = {Harth-Peter, Waltraud}, title = {Das Kinde im Lichte personalistischer P{\"a}dagogik}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43324}, year = {1991}, abstract = {No abstract available}, subject = {Kind}, language = {de} } @article{Hommers1978, author = {Hommers, Wilfried}, title = {Multinomiale und Bayes-statistische konfigurale Klassifikation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43798}, year = {1978}, abstract = {Ein Verfahren zur Klassifikation von Pbn aufgrund individueller Abweichung von der Annahme wiederholter multinornialer Zufallsereignisse und aufgrund individueller maximaler Likelihood der Zugeh{\"o}rigkeit zu einer bestimmten Gruppe wird nebst Modelltest dargelegt. Als Anwendungsbeispiel wird {\"u}ber die Ergebnisse bei zwei denkbaren Klassifikationen in verschiedenen Therapiemotivationsgruppen berichtet}, subject = {Psychologie}, language = {de} } @article{Hommers1975, author = {Hommers, Wilfried}, title = {Zur G{\"u}ltigkeit des objektiven Erwartungsmaximierungsmodells beim Entscheidungsverhalten von Schulkindern}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43784}, year = {1975}, abstract = {Fr{\"u}here Untersuchungen zum Entscheidungsverhalten von Kindern lassen zwei Interpretationen sogenannter lagebedingter Wahlen zu. Entscheidungen von 8- bis 14j{\"a}hrigen Sch{\"u}lern zeigten, daß sich lagebedingte Wahlen als orientiert am Erwartungsmaximum bezeichnen lassen. Die Beziehung zwischen Orientierung am Erwartungsmaximum und den Variablen Alter, Schulzugeh{\"o}rigkeit und Vorerfahrung erwies sich als positiv. Weiterhin konnte die Abh{\"a}ngigkeit der Wahlh{\"a}ufigkeit des Erwartungsmaximums von der Hervorgehobenheit des Erwartungsmaximums nachgewiesen werden. Die G{\"u}ltigkeit des objektiven Erwartungsmaximierungsmodells mußte aber wegen verschiedener Befunde eingeschr{\"a}nkt werden.}, subject = {Psychologie}, language = {de} } @article{Hommers1976, author = {Hommers, Wilfried}, title = {Zur Validit{\"a}t der Portfolio-Theorie im Entscheidungsverhalten von Schulkindern}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43775}, year = {1976}, abstract = {No abstract available}, subject = {Psychologie}, language = {de} } @article{Ruhe1987, author = {Ruhe, Ernstpeter}, title = {Les Allemands fascin{\´e}s par l'Alg{\´e}rie : R{\´e}cits de voyage des XVIII{\`e}me et XIX{\`e}me si{\`e}cles}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-46162}, year = {1987}, abstract = {No abstract available}, language = {fr} }