161,571 research outputs found
Johann Georg Trautmann u Strossmayerovoj galeriji
No full textDuring analysis of the painting »A Woman Lighting a Candle«, attributed to Godfried Schalcken, donated to the Strossmayer Gallery by Ante Topić Mimara in 1967, an original signature was discovered leading to the conclusion that its real author is Johann Georg Trautmann (1713-1769). This painter worked in Frankufrt, painting in the manner of the late Dutch tradition. J. W. Goethe wrote Of him: »Trautmann created several wonderful, Rembrandt-like Resurrections from the New T estament . . . « There is mention of several of Trautmann's contemporaries, painters with the same tenebrist expression who skillfully applied the effects of artificial light (candles, open fire, lamp).Analizirajući sliku »Žena pali svijeću«, koju je Strossmayerovoj galeriji poklonio Ante Topić Mimara (1967) kao djelo Godfrieda Schalckena, autor je otkrio originalnu signaturu u formi monograma, na temelju čega je nedvojbeno utvrdio da je pravi autor slike Johann Georg Trautmann (1713-1769). Slikar je djelovao u Frankfurtu, slikajući u maniri kasne nizozemske tradicije. O njemu je svjedočanstvo ostavio J . W. Goethe, ističući među ostalim: »Trautmann je rembrandizirao nekoliko čudesnih uskrsnuća iz Novog zavjeta . . . « Autor navodi podatke o Trautmannovim kolegama slikarima koji njeguju jednak tenebrozni način izražavanja i vješto barataju efektima umjetne rasvjete (svijeće, kandila, vatre iz ognjišta pa i stvarnog požara)
Bibliographie zum Problem Pflanzensoziologie und Pollenanalyse (Palynologie) : Arbeiten aus der Bundesanstalt für Vegetationskartierung
No full textvon W. Trautmann, Stolzenau/Wese
Starke Zweifel am dualen System
No full textStarke Zweifel am dualen System / Michael Trautmann ; Anette Mench ; Stefan W. Fischer. - In: Lebensmittelzeitung. 1992. 40. S. 122 f
Wie kann individuelles Lernen gelingen?
No full textWischer B, Trautmann M. Wie kann individuelles Lernen gelingen? b&w bildung und wissenschaft - Zeitschrift der Gewerkschaft Erziehung und Wissenschaft Baden-Württemberg. 2012;2012(12):14-17
Electromagnetic processes at the LHC : nuclear parton distributions from deep inelastic pair production and exclusive photoproduction of single W bosons
No full textUltra-peripheral collisions at ion colliders, such as the Large Hadron Collider (LHC) at CERN, offer the possibility to study electromagnetic processes at hitherto unexplored energies. In the framework of the equivalent photon approximation (EPA), where relativistic charged particles are treated as beams of equivalent photons, the collisions of ions can be used to study two-photon (γγ collisions) or photonuclear processes (γp and γA collisions). This thesis contains two studies of processes which might be observed at the LHC. The main purpose in these studies is the estimation of the total rates of these processes at LHC energies and the investigation of their event signature, in order to find out whether an observation of these processes is feasible and what can be learnt from them. Our first study [1] addresses the production of lepton pairs in heavy ion collisions in the region of large momentum transfer of one of the photons and the feasibility to study the quark content of nucleons and nuclei from this process. This is particularly interesting with regard to how the quark parton distributions of nucleons change when affected by nuclear modifications. However, to be able to learn from this process, it is important to isolate it experimentally. This means, one has to find a way to distinguish the deep inelastic scattering (DIS) process from possible background, mainly coming from the elastic (doubly coherent) two-photon pair production. To this purpose we calculate the cross section for two-photon lepton pair production in relativistic heavy ion collisions in the region of large momentum transfer of one of the photons in a plane wave Born approximation. We compare differential cross sections from this calculation to those of a calculation of doubly coherent pair production. We find the elastic contribution to be dominant at small momentum transfers of the photons. However, at transverse momenta of the leptons of above ∼GeV the two contributions become comparable in size. Furthermore, the two processes show distinct event signatures: In the doubly coherent process, the leptons are produced back-to-back in the transverse plane, i. e. having equal transverse momenta. In the deep inelastic contribution, in contrast, the leptons show an asymmetric distribution of their transverse momenta. One lepton is produced with relatively large transverse momentum, reflecting the Q2 distribution of the photon, while the transverse momentum distribution of the other lepton peaks at small transverse momenta. Furthermore, lepton pair production from deep inelastic scattering in heavy ion collisions can be related to deep inelastic lepton scattering off nuclei by means of a combination of the equivalent photon approximation and photon splitting into a lepton pair. This provides an intuitive picture of the process and moreover simplifies the calculation considerably. In order to test these approximations, we calculate differential cross sections as functions of various kinematic variables in the equivalent photon approximation (EPA) and the equivalent lepton approximation (ELA) and compare the results to those of the full calculation. As result, the EPA is found to be satisfying, whereas the ELA consistently overestimates the results from the full calculation. Despite the quantitative failure of the ELA, our results confirm that it may still serve as a qualitative picture of the process. Furthermore, we include two parameterizations which account for nuclear modifications in our full calculation in order to study their effect on the cross section. We find the differential cross section as function of the rapidity to be most sensitive to the differences between the two sets. In our second study [2], we are concerned with the exclusive photoproduction of single W bosons in p-p or p-A collisions, where the proton is converted into a neutron, which proceeds in forward direction. This process is very sensitive to the coupling of two W bosons and a photon and thus offers the possibility to test this coupling for contributions which go beyond the Standard Model provided a reasonable rate of events can be achieved. This study aims to estimate the total rate of events for this process at the LHC. To this purpose, we calculate the cross section for real photoproduction of single W bosons and cross-check the
results with those of former studies of this process. We extend those studies by including, in
addition, a weak magnetic form factor. Convolving the photoproduction cross sections with the
equivalent photon spectra of ions and protons yields the cross sections for p-p and p-A collisions.
We estimate the rates of events expected at the LHC from this process within the Standard
Model. Furthermore, we compare different choices of the (almost unknown) timelike weak form
factors and examine how they affect the sensitivity of the total cross section to the triple gauge
boson coupling.
Since the W decays almost immediately, it can only be measured through its decay products.
The most important decay channel, in the sense that it has experimentally the cleanest signal,
is the decay into leptons. We include the decay of the W into a light anti-lepton (e+ or μ+)
and the corresponding neutrino into our calculations and calculate differential cross sections as
functions of the energies, rapidities, and transverse momenta of all final state particles in this
process. Based on the rate predicted for the p-p case, we conclude that an observation of this
process should be possible in the very high-luminosity runs at the LHC
Hedychrum mavromoustakisi TRAUTMANN 1929
No full textHedychrum mavromoustakisi TRAUTMANN, 1929 B e l e g m a t e r i a l: 2 /9 (Coll. Arens: 1 /4; Coll. Linsenmaier: 1 /4; Coll. Linz: 1). B e l e g t e F l u g z e i t und: Mitte Juni - Mitte Juli. Diese ostmediterrane Art scheint auf der Peloponnes nur im Tiefland bis maximal 700m Höhe zu leben und ist viel seltener als H. longicolle. Ihre Flugzeit beginnt offenbar erst im Sommer. LINSENMAIER (1968; im Vorwort zur Gattung) weist darauf hin, dass die Punktierung bei seinen griechischen Belegen nicht so sehr grob sei wie bei der zypriotischen Population. Der Wirt ist unbekannt. Coll. Arens: K Atsiholos /antikes Gortis 9.7.2001 (), 17.7.2006 (1 /1); i nördlich von Kefalari 14.7.1997 (); j Stymphalia /nördlich des Dorfs 1.7.2010 (). - Coll. Linsenmaier: N Pyrgos 12.6.1961 (2), 13.6.1961 (); Patras 23.6.1962 (1 /1). - Coll. Linz: T Kamare 5.6.1960 ().Published as part of Arens, W., 2014, Die Goldwespen der Peloponnes (Hymenoptera: Chrysididae) 1. Teil: Die Gattungen Cleptes, Omalus, Holopyga, Hedychrum, Hedychridium und Euchroeus; mit Beschreibung einer neuen Cleptes-Art, pp. 553-621 in Linzer biologische Beiträge 46 (1) on page 584, DOI: 10.5281/zenodo.530565
Präventionsprogramme gegen islamistisch motivierte Radikalisierung: Klassifizierung der Ansätze und ihrer Begründetheit
No full textKahl W, Trautmann C, Zick A. Präventionsprogramme gegen islamistisch motivierte Radikalisierung: Klassifizierung der Ansätze und ihrer Begründetheit. Forum Kriminalprävention. 2015;(3):3-5
Elephants & Kings: An Environmental History. By Thomas R. Trautmann
No full text


Elephants & Kings: An Environmental History. By Thomas R. Trautmann. Chicago: University of Chicago Press, 2015. Pp. xvi + 372, illus. $30, £21 (paper).


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Prävention von islamistischer Radikalisierung und Gewalt - Eine Systematisierung von Präventionsansätzen in Deutschland
No full textTrautmann C, Kahl W, Zick A. Prävention von islamistischer Radikalisierung und Gewalt - Eine Systematisierung von Präventionsansätzen in Deutschland. Forum Kriminalprävention. 2017;(1):3-9
Prof. Th. W. Adorno and the author Hans Erich Nossack.
No full textProf. Th. W. Adorno and the author Hans Erich Nossack at a reception of Insel Verlag, Buchmesse Frankfurt 1966LB
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