@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}
}