@article{DunkelHildelResseguier2007, author = {Dunkel, Franz G. and Hildel, Werner and Ress{\´e}guier, Peter}, title = {Hieracium fallax Willd. und weitere Hieracium echioides-Zwischenarten im nordwestlichen Bayern}, doi = {10.3264/FG.2007.0427}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35337}, year = {2007}, abstract = {Die Grenze des riesigen eurasiatisch-kontinentalen Areals von Hieracium echioides Lumn. verl{\"a}uft durch Mitteldeutschland, Zwischenarten aus der Hieracium echioides-Verwandtschaft (sect. Echinina) dringen westlich bis in die Oberrheinebene vor, sind aber im {\"u}brigen S{\"u}den und S{\"u}dosten Deutschlands sehr selten oder fehlen. In den letzten Jahren wurden im Nordwesten Bayerns neue Wuchsorte von Hieracium auriculoides L{\´a}ng (MTB 5526.31, 5924.44, 6125.13, 6223.22), H. calodon Tausch ex Peter (6123.21, 6125.13) und H. fallax Willd. (6223.21) nachgewiesen. Dies stellt den zweiten aktuellen Nachweis von H. fallax in Bayern dar, bemerkenswert ist ein Nachweis von H. auriculoides in der Rh{\"o}n in ca. 700 m Meeresh{\"o}he.}, subject = {Habichtskraut}, language = {de} } @article{Ewald2007, author = {Ewald, J{\"o}rg}, title = {Ein pflanzensoziologisches Modell der Schattentoleranz von Baumarten in den Bayerischen Alpen}, doi = {10.3264/FG.2007.0803}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35345}, year = {2007}, abstract = {The ecological niche, as a summary of the environment in which a tree species can live, is a central concept in vegetation ecology and its application in silviculture. While the fundamental niche focusses on the physiological constraints of survival and growth, the realised niche takes competition in real communities into account. To understand realised niches in a causal fashion requires knowledge of the life cycle of plant species. The concept of regeneration niche is based on the notion that establishment and juvenile growth are particularly sensitive stages. Obviously, silviculturalists must be particularly interested in regeneration niches. The database BERGWALD contains 4,934 phytosociological plots from mountain forests and related vegetation types of the Bavarian Alps. The detailed information on plant species composition (trees, tree regeneration, shrubs, herbs and bryophytes) and cover has so far been used extensively for deriving vegetation units, site types and groups of indicator species. In the present study the database content was analysed with regard to the ecology of tree species in general and their regeneration niche in particular. The availability of light as a crucial resource that changes during forest succession was estimated by calculating average Ellenberg indicator values (mL) based on total field and bryophyte layer composition. The relative frequency of plots across the mL gradient in the total database was juxtaposed to the occurrence of the 16 most common tree species in the tree and in the regeneration layer, respectively. [...] As expected, the realised niches of tree species on the light gradient corresponded broadly to Ellenberg's L-value of tree regeneration. As the regional climax, Abies alba and Fagus sylvatica have coincident optima of tree layer and juvenile occurrences in closed, mature stands. Ulmus glabra and Fraxinus excelsior, as species of lower altitude, exhibit niches most similar to these climax species, followed by Acer pseudoplatanus and Picea abies, two of the most frequent species, that occur from low elevations to the timber line. The intermediate role of these four species is confirmed, as regeneration occurs mostly at light levels higher than those found under adult trees of the same species. Against expectations, Taxus baccata clearly prefers stands with moderate to high light, as do Sorbus aria, Sorbus aucuparia and Alnus incana. While Larix decidua and Pinus cembra occupy very similar overall niches, tree layer and regeneration niches of Larix differ markedly, whereas coincident layer niches in Pinus cembra underpin its status as a climax species at tree line. Pinus sylvestris and Salix eleagnos are typical shade-intolerant pioneers, of which regeneration is practically restricted to non-forest vegetation. Pinus rotundata and Juniperus communis are small trees that are entirely restricted to open stands subject to geomorphological activity. The results demonstrate the potential of phytosociological databases for studying the niches of tree species. To be sure, such analyses are no replacement for physiological and experimental studies. The research community is invited to use this source as a reference framework and an empirical validation for more specialised research.}, subject = {Baumart}, language = {de} } @article{Meierott2008, author = {Meierott, Lenz}, title = {Cerastium brachypetalum Desp. ex Pers. und Cerastium tenoreanum Ser. (Caryophyllaceae) in Franken}, doi = {10.3264/FG.2008.1022}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35354}, year = {2008}, abstract = {F{\"u}r Cerastium tenoreanum Ser. und die Variet{\"a}ten von Cerastium brachypetalum Desp. ex Pers. werden ihre korrekte Nomenklatur, ihre Unterscheidungsmerkmale und ihre Verbreitung in S{\"u}ddeutschland und Franken mitgeteilt. Die gegenw{\"a}rtige Ausbreitungstendenz annueller Cerastien wird diskutiert.}, subject = {Hornkraut}, language = {de} } @article{GottschlichDrenckhahn2005, author = {Gottschlich, G{\"u}nter and Drenckhahn, Detlev}, title = {Iconography of the Genus Hieracium in central Europe - Part 1: General Description and Morphotypes}, doi = {10.3264/FG.2005.0502}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35363}, year = {2005}, abstract = {The genus Hieracium comprises more than one thousand sexual and apomictic species in Europe, with numerous intermediates and microspecies. Only a small fraction of the members of the genus Hieracium has been illustrated or photo-documented in the literature. Since many of these publications are difficult to obtain, only a few specialists are familiar with most of the species and subspecies described in the literature. In order to overcome this problem and encourage geobotanical research on the genus Hieracium, we decided to edit an iconography of central and southern European Hieracia in an electronical journal (Forum geobotanicum) with free international access through the internet. Part I of this endeavour contains descriptions and photographs of the morphological spectrum of the genus Hieracium. Here, we categorize the genus into 15 basic morphotypes. These types conform partly to the sections and subsections of the genus Hieracium, but are in some cases informal and may even include members of different sections. Classification of morphotypes is considered helpful to obtain a first rough picture of an unknown species that then can be traced to the species and subspecies level by using keys or, after completion of this iconography, simply by screening the relevant images. One particularly novel aspect of the present endeavour will be the regular inclusion of magnified images and scanning electron micrographs.}, subject = {Habichtskraut}, language = {en} } @article{Dunkel2005, author = {Dunkel, Franz G.}, title = {Zur Kenntnis des Ranunculus auricomus-Komplexes in Deutschland: Ranunculus suborbicularis spec. nova}, doi = {10.3264/FG.2005.1222}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35377}, year = {2005}, abstract = {Die bei Schwarz (1949) als R. vertumnalis abgebildeten Pflanzen entsprechen nicht dem Typusmaterial, sondern weichen durch fast kreisf{\"o}rmige Blattspreiten der Schlussbl{\"a}tter und geringe Blattteilung ab. Sie werden hier als R. suborbicularis spec. nov. beschrieben und mit ihrem Blattzyklus und weiteren Belegen abgebildet. Die bekannte Verbreitung erstreckt sich auf Berlin (wohl erloschen), Th{\"u}ringen und Bayern. Insgesamt ist aufgrund der kleinen Zahl der Populationen eine starke Gef{\"a}hrdung anzunehmen.}, subject = {Gold-Hahnenfuß}, language = {de} } @article{RostanskiMeierott2006, author = {Rostanski, Krzysztof and Meierott, Lenz}, title = {Zur Gattung Oenothera L. in Franken - mit besonderer Ber{\"u}cksichtigung von Oenothera stucchii Soldano (neu f{\"u}r Deutschland)}, doi = {10.3264/FG.2006.0310}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35388}, year = {2006}, abstract = {In August 2004 the authors of this report undertook a survey on the Genus Oenothera (evening-primroses) in the valley of the river Main between the cities of Schweinfurt and Bamberg (Bavaria, Lower and Upper Franconia). 22 different taxa were identified, most of which are new to Bavaria, one new for Europe (Oenothera hazelae Gates) and another one new for Middle Europe (Oenothera stucchii Soldano). In this report a list of all Oenothera species found in Franconia is given and Oenothera stucchii, a particular tall (up to > 2 m) species with extremely long Hypanthia of 50-70 mm and fruit capsules with truncated teeth, is described and depicted in more detail.}, subject = {Nachtkerze }, language = {de} } @article{RoederJeschkeKiehl2006, author = {R{\"o}der, Daniela and Jeschke, Michael and Kiehl, Kathrin}, title = {Vegetation und B{\"o}den alter und junger Kalkmagerrasen im Naturschutzgebiet "Garchinger Heide" im Norden von M{\"u}nchen}, doi = {10.3264/FG.2006.1013}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35397}, year = {2006}, abstract = {Das Naturschutzgebiet "Garchinger Heide" ist ein Relikt der ehemals ausgedehnten Kalkmagerrasen auf Pararendzinen {\"u}ber Niederterrassenschotter im Alpenvorland. Bei jahrhundertelanger extensiver Landnutzung hat sich auf trockenen n{\"a}hrstoffarmen B{\"o}den eine artenreiche Vegetation mit zahlreichen seltenen und gef{\"a}hrdeten Arten entwickelt. Die "Altheide", welche den gr{\"o}ßten Teil des Naturschutzgebiets einnimmt, ist gepr{\"a}gt durch flachgr{\"u}ndige, n{\"a}hrstoffarme B{\"o}den, welche eine geschlossene Vegetation mit einem hohen Anteil an Arten der Halbtrockenrasen (haupts{\"a}chlich Mesobromion erecti und Cirsio-Brachypodion) tragen. Das 1945 durch Oberbodenabtrag begonnene, aber nicht mehr ausgebaute und verwendete „Rollfeld" weist einen niedrigen Feinbodenanteil, welcher auf eine geringe Wasserverf{\"u}gbarkeit schließen l{\"a}sst, sowie niedrige Gehalte an Gesamtstickstoff und CAL-austauschbaren P2O5 auf. Die Vegetation ist l{\"u}ckig mit einem hohen Anteil an Trockenrasenarten (Xerobromion, Sedo-Scleranthetea, Sesleritalia albicantis). Das heutige Vorkommen zahlreicher Arten, welche in fr{\"u}heren Untersuchungen (1956 und 1986) nicht gefunden wurden, l{\"a}sst auf eine fortschreitende Sukzession der Vegetation des Rollfeldes hin zu der der Altheide schließen. Der 1959 zum Naturschutzgebiet hinzu gekaufte ehemalige Acker unterscheidet sich immer noch deutlich von der Altheide. Eine allm{\"a}hliche Ann{\"a}herung der Standortbedingungen ist jedoch zu beobachten. So sanken die Gehalte an CAL-austauschbarem P_ 2 O_5 und K_2 O im Vergleich zu Werten aus dem Jahr 1993 deutlich ab. Trotz des immer noch hohen Anteils an Gr{\"u}nlandarten (Molinio-Arrhenatheretea) konnten sich im Vergleich zu 1986 mehr Magerrasenarten etablieren.}, subject = {Vegetation}, language = {de} } @article{ArgosDandekar1994, author = {Argos, P. and Dandekar, Thomas}, title = {Delineating the main chain topology of four-helix bundle proteins using the genetic algorithm and knowledge based on the amino acid sequence alone}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33807}, year = {1994}, abstract = {No abstract available}, subject = {Proteine}, language = {en} } @article{HuebnerWissemann2004, author = {H{\"u}bner, Stefanie and Wissemann, Volker}, title = {Morphometrische Analysen zur Variabilit{\"a}t von Prunus spinosa L. - Populationen(Prunoideae, Rosaceae) im mittleren Saaletal, Th{\"u}ringen}, doi = {10.3264/FG.2004.1215}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35207}, year = {2004}, abstract = {Prunus spinosa L. (Rosaceae) is one of the most widespread members of the genus Prunus in middle europe. Its morphological plasticity resulted in a number of described taxa at subspecific level. Since the early neolithic times, drupes of the plum family are recorded and exhibit already a remarkable diversity in size and form. Here we present a short historical account to the use of P. spinosa and an overview of the different taxonomic treatments. We examined distribution patterns in general and in particular in the central valley of the river Saale (Thuringia) with respect to ecological, edaphic and climatic factors. We assessed within 16 populations the variability of 22 metric and 10 qualitative morphological characters at 7 different locations. Population sites included forest-, way- and fieldsides, as well as lightish pine forests. Pollen fertility did not increase during the flowering period, all flowers were directly fully fertile from the beginning. In contrast, glucose content varied significantly depending of the status of fertilization. Epicuticular wax structure was without variation amongst the populations. P. spinosa leaves are covered with a smooth layer of slightly striated wax. Morphological characters were scored on 270 branches and 506 fruits. Most of the characters showed enormous variability among and within populations such as metrics of leaves, thorns and character states of flower morphology. The lowest variability among populations and therefore not dependend of modificatory factors was found in fruit characters. Since kernel morphology seems to be genetically rather than modificatory controlled, we applied the 3 taxonomical concepts of Werneck, K{\"u}hn and Scholz u. Scholz to identify evolutionary units at subspecific levels. However, population variability was still so high, that from our study here we can not support an infraspecific classification of Prunus spinosa L.}, subject = {Prunus}, language = {de} } @article{Ewald2004, author = {Ewald, J{\"o}rg}, title = {{\"O}kologie der Weißtanne (Abies alba Mill.) im bayerischen Alpenraum}, doi = {10.3264/FG.2004.1109}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35193}, year = {2004}, abstract = {Based on queries of the phytosociological databank BERGWALD, a compilation of 3.504 forest vegetation plots from the Bavarian Alps, the ecological niche of Abies alba is re-assessed. The tree species occurs mostly admixed in mountain forests with Fagus and Picea rather than forming distinctive communities of its own. Climatically, Abies is widely distributed to the upper limit of the montane belt, but occurs only sparsely in subalpine forest. Analysis of Ellenberg indicator values based on total species composition yielded the following results: As a tolerant species Abies regeneration has a marked preference for shady forest, which in turn Abies tree layers themselves help create. It also has a clear preference for acidic topsoil conditions. Sites with low N-supply, such as early successional stages on raw carbonate soils, are rarely colonised by Abies. Also, dry and markedly wet forest sites in the region are avoided by Abies. Permutation-based indicator species analysis found a large number of common forest species as being significantly associated with Abies and its frequent companion Fagus sylvatica, whereas there is a negative relationship with more specialised Seslerion and Erico-Pinion species. As Abies alba has very few specific companion species not shared with either Fagus or Picea, the delimitation of Abietetum-syntaxa appears mostly motivated by ecological rather than phytosociological considerations. As a result of its susceptibility towards game browsing, Abies regeneration is an indicator of high woody species richness. The study broadly confirms Abies alba's status as a climax species intermediate between Fagus and Picea, and demonstrates the potential of large phytosociological databanks for niche modelling.}, subject = {Weißtanne}, language = {de} } @article{Rostas2007, author = {Rost{\´a}s, Michael}, title = {The effects of 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one on two species of Spodoptera and the growth of Setosphaeria turcica in vitro}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35079}, year = {2007}, abstract = {Maize seedlings contain high amounts of glucosidically bound 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA). The effects of DIMBOA on the feeding behaviour and performance of two noctuids, Spodoptera exigua H{\"u}bner and S. frugiperda Smith, were compared. The question was raised whether S. frugiperda, preferring maize and other Poaceae, is better adapted to DIMBOA than S. exigua. In addition, the effects of DIMBOA on the mycelial growth of the plant pathogen Setosphaeria turcica Leonard et Suggs (causal agent of northern corn leaf blight) was assessed in vitro. DIMBOA had an antifeedant effect on S. exigua but stimulated feeding in S. frugiperda in dual-choice experiments. In a no-choice setup, larvae of S. exigua gained less biomass and had a prolonged development when feeding on an artificial diet containing DIMBOA. However, pupal weight was not significantly different between treatments. In contrast, larvae of S. frugiperda were not affected by DIMBOA. Strong detrimental effects of DIMBOA were found on the mycelial growth of the pathogen S. turcica.}, subject = {Eulen }, language = {en} } @article{Drenckhahn2004, author = {Drenckhahn, Detlev}, title = {Neue und wieder entdeckte Hieracien auf R{\"u}gen}, doi = {10.3264/FG.2004.0127}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-34843}, year = {2004}, abstract = {The island of R{\"u}gen (Rugia), located in the Baltic sea, is the most northeastern (NE) part of Germany. Due to its particular geographic position at the border between scandinavian, middle european and continental european floral elements, R{\"u}gen harbours several hawkweed species (Hieracia) of the scandinavian area such as Hieracium fuscocinererum, H. subramosum, H. subrigidum and H. diaphanoides subsp. neoornatum and, at the same time, is the most northwestern location of H. echioides. Two endemic Hieracium species have been identified recently, i. e. H. muorum subsp. rugianum and H. caesium subsp. zabelianum (Gottschlich et al. 1998, Bot. Rundbr. Mecklenburg-Vorpommern 31:1-94). In the present communication, two further novel endemic Hieracium taxa will be described, which are restricted to the chalk cliffs of Cape Arkona and Jasmund, i. e. H. swantevitii and H. lachenalii subsp. litocretaceum. H. swantevitii (Swantevit's hawkweed) is intermediate between H. caesium/H. bifidum and H. lachenalii with hairy, modestly glandular involucre and slightly serrated elongated leaves . This view of an intermediate position of H. swantevitii between these species was further supported by the ultrastructure of epidermal papillae of the outer bracts of the involucre visualized by scanning electron microscopy. H. lachenalii subsp. litocretaceum (chalk cliff hawkweed) is characterized by its narrow anguste to almost linear denticulate leaves in combination with mode rately glandular heads. In addition to the description of these two new hawkweed taxa , the rediscovery of three further species will be reported for R{\"u}gen, i. e. H. echioides (W. Gager in SE R{\"u}gen), H. cymosum subsp. cymosum (close to G{\"o}hren in SE R{\"u}gen) and H. subrigidum E Glowe in N R{\"u}gen. The locality of H. echioides appears to be most north-western site in middle Europe, the locality of H. cymosum is one of the last growth sites in the northern German lowlands and H. subrigidum (so far only known as a single herbarium specimen, collected 1858 in R{\"u}gen) has so far not been recorded in other localities of middle Europe.}, subject = {Habichtskraut}, language = {de} } @article{WuBeckerWaagetal.1991, author = {Wu, Y. S. and Becker, Charles R. and Waag, A. and Bicknell-Tassius, R. N. and Landwehr, G.}, title = {The effects of laser illumination and high energy electrons on molecular-beam epitaxial growth of CdTe}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30795}, year = {1991}, abstract = {We report the results of a detailed investigation on the Te-stabilized (2 x 1) and the Cdstabilized c( 2 X 2) surfaces of ( 100) CdTe substrates. The investigation demonstrates for the first time that both laser illumination and, to a greater extent, high-energy electron irradiation increase the Te desorption and reduce the Cd desorption from ( 100) CdTe surfaces. Thus it is possible by choosing the proper growth temperature and photon or electron fluxes to change the surface reconstruction from the normally Te-stabilized to a Cd-stabilized phase.}, language = {en} } @article{KleinschmidtScheerDabauvalleetal.1983, author = {Kleinschmidt, J{\"u}rgen A. and Scheer, Ulrich and Dabauvalle, Marie-Christine and Bustin, Michael and Franke, Werner W.}, title = {High mobility group proteins of amphibian oocytes: a large storage pool of a soluble high mobility group-1-like protein and involvement in transcriptional events}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33250}, year = {1983}, abstract = {No abstract available}, language = {en} } @article{Ruhe1976, author = {Ruhe, Ernstpeter}, title = {Nouvelle critique und Strukturalismus}, isbn = {3-87452-263-6}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32324}, year = {1976}, abstract = {No abstract available}, subject = {Romanische Sprachen}, language = {de} } @article{Ruhe1992, author = {Ruhe, Ernstpeter}, title = {Centre vide, cadre plein: les Romanesques d'Alain Robbe-Grillet}, isbn = {3-8233-4120-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30524}, year = {1992}, abstract = {No abstract available}, subject = {Autobiographie ; Robbe-Grillet}, language = {fr} } @article{GrafeSchmuckLinsenmair1992, author = {Grafe, T. Ulmar and Schmuck, Richard and Linsenmair, Karl Eduard}, title = {Reproductive energetics of the African Reed Frogs, Hyperolius viridiflavus and Hyperolius marmoratus}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31187}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{Linsenmair1994, author = {Linsenmair, Karl Eduard}, title = {Biologische Vielfalt und {\"o}kologische Stabilit{\"a}t}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31157}, year = {1994}, abstract = {No abstract available}, language = {en} } @article{PlakhutinArbuznikov1992, author = {Plakhutin, B. N. and Arbuznikov, Alexei V.}, title = {Equations for determination of vector coupling coefficients in systems with two open shells. Ions of transition metals with p\(^M\)d\(^N\) configuration}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30746}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{PlakhutinArbuznikovTrofimov1993, author = {Plakhutin, B. N. and Arbuznikov, Alexei V. and Trofimov, A. B.}, title = {Coupling coefficients for systems with two open electronic shells: transition metal ions with p\(^M\)d\(^N\) configuration}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30736}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{PlakhutinZhidomirovArbuznikov1992, author = {Plakhutin, B. N. and Zhidomirov, G. M. and Arbuznikov, Alexei V.}, title = {Vector coupling coefficients for calculations of transition-metal atoms and ions by the SCF coupling operator method}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30702}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{MollRoellinghoff1991, author = {Moll, Heidrun and R{\"o}llinghoff, Martin}, title = {T-cell reactivity to purified lipophosphoglycan from Leishmania major: A model for analysis of the cellular immune response to microbial carbohydrates.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-33022}, year = {1991}, abstract = {The major macromolecule on the surface o/Leishmania majorpromastigotes is a lipophosphoglycan (LPG). This glycoconjugate plays a key role in determining infectivity and survival of para-sites in the mammalian host cell. In addition, L. major LPG is able to induce a host-protective immune response. In this article, we summarise the evidence for recognition of highly purified LPG by T cells and we discuss the potential mechanisms of T-cell Stimulation by this non-protein antigen.}, language = {en} } @article{TiuDavernGarciaetal.1989, author = {Tiu, W. U. and Davern, K. M. and Garcia, E. G. and Moll, Heidrun and Mitchell, Graham F.}, title = {Monoclonal antibodies reacting with Schistosoma japonicum eggs and their target epitopes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30916}, year = {1989}, abstract = {Ten monoclonal antibodies (McAbs) raised to Schistosoma japonicum eggs could be assigned using several serological and immunochemical techniques to 3 groups. The McAbs, termed A, B and C-McAbs, apparently recognize carbohydrate epitopes that can be located on the same antigen molecule. The antibodies, generally of IgM isotype, are idiotypically related. They are distinct from another IgM McAb (Group D-McAb) the carbohydrate target epitope of which can also be associated with the epitopes of A. B and C-McAbs. The McAbs produce large vacuolated bleb reactions in the circumoval precipitin test (COPT) and target epitopes have different representations in various life cycle stages such as immature and mature eggs, male and female worms (including S. mansoni). Antigens affinity purified on columns containing A, B, C and D-McAbs stimulate proliferation of T cells from egg-sensitized mice and elicit DTH reactions in such mice. This raises the possibility that the target antigens of these carbohydrate-reactive monoclonal antibodies are immunopathologic and involved in egg-induced granuloma formation.}, language = {en} } @article{SolbachBogdanMolletal.1989, author = {Solbach, W. and Bogdan, C. and Moll, Heidrun and Lohoff, M. and R{\"o}llinghoff, M.}, title = {Parasit{\"a}re Evasionsmechanismen: Beispiel Leishmanien}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30920}, year = {1989}, abstract = {Leishmanien besitzen eine Vielzahl von Mechanismen, die humorale und zellul{\"a}re Immunabwehr effektiv zu unterlaufen. Diese h{\"a}ngen eng mit der Expression von haupts{\"a}chlich zwei Glykokonjugaten auf der Parasitenoberfl{\"a}che zusammen, dem gp63 und dem Lipophosphoglykan. Die Parasiten sind einerseits schlechte Aktivatoren des alternativen Komplementweges und umgehen damit ihre eigene extrazellul{\"a}re Lyse. Oberfl{\"a}chengebundene Komplementfaktoren f{\"o}rdern andererseits die Aufnahme der Leishmanien durch Makrophagen. Solange diese nicht durch T-Zellen aktiviert sind, dienen sie den Parasiten als "Refugium". Dies gilt insbesondere, als Leishmanien in der Lage sind, 1. den "oxidative burst" zu hemmen; 2. toxische Sauerstoffmetaboliten zu entgiften; 3. abbauende lysosomale Enzyme zu hemmen und 4. das saure Milieu in den Lysosomen f{\"u}r ihren eigenen Metabolismus auszunutzen. Schließlich unterlaufen Leishmanien die zellul{\"a}re Immunabwehr des Wirts, indem sie die Aktivierung von T-Lymphozyten hemmen und die Expansion von T-Zell-Sub-populationen bewirken, die f{\"u}r ihr eigenes {\"U}berleben n{\"u}tzlich sind.}, language = {de} } @article{MollMitchell1988, author = {Moll, Heidrun and Mitchell, Graham F.}, title = {Analysis of variables associated with the promotion of resistance, and its abrogation, in T cell-reconstituted nude mice infected with Leishmania major}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30949}, year = {1988}, abstract = {No abstract available}, language = {en} } @article{KobeltLinsenmair1986, author = {Kobelt, Frank and Linsenmair, Karl Eduard}, title = {Adaptations of the reed frog Hyperolius viridiflavus to its arid environment. I. The skin of Hyperolius viridiflavus nitidulus in wet and dry season conditions.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30551}, year = {1986}, abstract = {Hyperolius viridiflavus nitidulus inhabits parts of the seasonally very hot and dry West African savanna. During the long lasting dry season, the small frog is sitting unhidden on mostly dry plants and has to deal with high solar radiation load (SRL), evaporative water loss (EWL) and small energy reserves. It seems to be very badly equipped to survive such harsh climatic conditions (unfavorable surface to volume ratio, very limited capacity to st{\"o}re energy and water). Therefore, it must have developed extraordinary efficient mechanisms to solve the mentioned Problems. Some of these mechanisms are to be looked for within the skin of the animal (e.g. protection against fast desiccation, deleterious effects of UV radiation and over-heating). The morphology of the wet season skin is, in most aspects, that of a "normal" anuran skin. It differs in the Organization of the processes of the melanophores and in the arrangement of the chromatophores in the Stratum spongiosum, forming no "Dermal Chromatophore Unit". During the adaptation to dry season conditions the number of iridophores in dorsal and ventral skin is increased 4-6 times compared to wet season skin. This increase is accompanied by a very conspicuous change of the wet season color pattern. Now, at air temperatures below 35° C the color becomes brownish white or grey and changes to a brilliant white at air temperatures near and over 40° C. Thus, in dry season State the frog retains its ability for rapid color change. In wet season State the platelets of the iridophores are irregularly distributed. In dry season State many platelets become arranged almost parallel to the surface. These purine crystals probably act as quarter-wave-length interference reflectors, reducing SRL by reflecting a considerable amount of the radiated energy input. EWL is as low as that of much larger xeric reptilians. The impermeability of the skin seems to be the result of several mechanisms (ground substance, iridophores, lipids, mucus) supplementing each other. The light red skin at the pelvic region and inner sides of the limbs is specialized for rapid uptake of water allowing the frog to replenish the unavoidable EWL by using single drops of dew or rain, available for only very short periods.}, language = {en} } @article{ScheerTrendelenburgFranke1976, author = {Scheer, Ulrich and Trendelenburg, Michael F. and Franke, Werner W.}, title = {Regulation of transcription of genes of ribosomal RNA during amphibian oogenesis: a biochemical and morphological study}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32814}, year = {1976}, abstract = {Natural changes in the transcription of rRNA genes were studied in nucleoli from three oogenic stages of the newt Triturus alpestris with electron microscope, autoradiographic, and biochemical techniques. From determinations of the uridine triphosphate pool sizes and [3H]uridine uptake, phosphorylation, and incorporation into 28S and 18S rRNAs in vivo it was estimated that the rate of rRNA synthesis was about 0.01\% in previtellogenic oocytes and 13\% in mature oocytes when compared to midvitellogenesis. Spread preparations of nucleoli showed significant morphological changes in the transcriptional complexes. The total number of lateral fibrils, i.e., ribonucleoproteins containing the nascent rRNA precursor, were drastically decreased in stages of reduced synthetic activity. This indicates that rRNA synthesis is regulated primarily at the level of transcription. The resulting patterns of fibril coverage of the nucleolar chromatin axes revealed a marked heterogeneity. On the same nucleolar axis occurred matrix units that were completely devoid of lateral fibrils, matrix units that were almost fully covered with lateral fibrils, and various forms of matrix units with a range of lateral fibril densities intermediate between the two extremes. Granular particles that were tentatively identified as RNA polymerase molecules were not restricted to the transcription l complexes. They were observed, although less regularly and separated by greater distances, in untranscribed spacer regions as well as in untranscribed gene intercepts. The results show that the pattern of transcriptional control of rRNA genes differs widely in different genes, even in the same genetic unit.}, language = {en} } @article{GorboulevAxelrodBayev1977, author = {Gorboulev, Valentin G. and Axelrod, Vladimir D. and Bayev, Alexander A.}, title = {Primary structure of baker's yeast valine tRNA\(^{Val}_{2b}\)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32546}, year = {1977}, abstract = {The minor form of vallne tBNA from baker's yeaat - tRNA\(^{Val}_{2b}\) - purified by column chromatography was completely digesteft with guanylo-BNase and pancreatic ENase. The products of these digestions were separated by a combination of thin-layer chromatography on cellulose and high voltage electrophoresis on DEAE-paper and then identified. The halves of tRNA Val 2b were prepared by partial digestion with pancreatic Mass and their complete guanylo-BNase and pancreatic ENase, digests were analysed. Basing on the obtained data the primary structure of baker1s yeast tRNA\(^{Val}_{2b}\) was reconstructed.}, language = {en} } @article{DabauvalleLoosMerkertetal.1991, author = {Dabauvalle, Marie-Christine and Loos, Karin and Merkert, Hilde and Scheer, Ulrich}, title = {Spontaneous assembly of pore complex-containing membranes ("Annulate lamellae") in Xenopus egg extract in the absence of chromatin}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32797}, year = {1991}, abstract = {No abstract available}, language = {en} } @article{WilkenKossnerSenecaletal.1993, author = {Wilken, Norbert and Kossner, Ursula and Sen{\´e}cal, Jean-Luc and Scheer, Ulrich and Dabauvalle, Marie-Christine}, title = {Nup180, a novel nuclear pore complex protein localizing to the cytoplasmic ring and associated fibrils}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32049}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{Scheer1970, author = {Scheer, Ulrich}, title = {The ultrastructure of the nuclear envelope of amphibian oocytes: a reinvestigation. III. Actinomycin D-induced decrease in central granules within the pores.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32110}, year = {1970}, abstract = {No abstract available}, language = {en} } @article{FrankeScheerFritsch1972, author = {Franke, Werner W. and Scheer, Ulrich and Fritsch, Hansj{\"o}rg}, title = {Intranuclear and cytoplasmic annulate lamellae in plant cells}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32148}, year = {1972}, abstract = {No abstract available}, language = {en} } @article{FrankeKartenbeckZentgrafetal.1971, author = {Franke, Werner W. and Kartenbeck, J{\"u}rgen and Zentgraf, Hanswalter and Scheer, Ulrich and Falk, Heinz}, title = {Membrane-to-membrane cross-bridges. A means to orientation and interaction of membrane faces}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32122}, year = {1971}, abstract = {No abstract available}, language = {en} } @article{ScheerFrankeTrendelenburg1975, author = {Scheer, Ulrich and Franke, Werner W. and Trendelenburg, Michael F.}, title = {Effects of actinomycin D on the association of newly formed ribonucleoproteins with the cistrons of ribosomal RNA in Triturus oocytes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32383}, year = {1975}, abstract = {No abstract available}, language = {en} } @article{FrankeSpringScheeretal.1975, author = {Franke, Werner W. and Spring, Herbert and Scheer, Ulrich and Zerban, Heide}, title = {Growth of the nuclear envelope in the vegetative phase of the green alga Acetabularia. Evidence for assembly from membrane components synthesized in the cytoplasm.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32403}, year = {1975}, abstract = {No abstract available}, language = {en} } @article{ScheerFrankeTrendelenburgetal.1976, author = {Scheer, Ulrich and Franke, Werner W. and Trendelenburg, Michael F. and Spring, Herbert}, title = {Classification of loops of lampbrush chromosomes according to the arrangement of transcriptional complexes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32822}, year = {1976}, abstract = {The arrangement of transcriptional units in the loops of lampbrush chromosomes from oocyte nuclei of urodele amphibia and from primary nuclei of the green alga Acetabularia have been studied in the electron microscope using spread preparations. Loops with different patterns of arrangement of matrix units (i.e. to a first approximation, transcriptional units) can be distinguished: (i) loops consisting of one active transcriptional unit; (ii) loops containing one active transcriptional unit plus additional fibril-free, i.e. apparently untranscribed, intercepts that may include 'spacer' regions; (iii) loops containing two or more transcriptional units arranged in identical or changing polarities, with or without interspersed apparent spacer regions. Morphological details of the transcriptional complexes are described. The observations are not compatible with the concept that one loop reflects one and only one transcriptional unit but, rather, lead to a classification of loop types according to the arrangement of their transcriptional units. We propose that the lampbrush chromosome loop can represent a unit for the coordinate transcription of either one gene or a set of several (different) genes.}, language = {en} } @article{BrabletzPfeufferSchorretal.1993, author = {Brabletz, Thomas and Pfeuffer, Isolde and Schorr, Elke and Siebelt, Friederike and Wirth, Thomas and Serfling, Edgar}, title = {Transforming growth factor \(\beta\) and cyclosporin A inhibit the inducible activity of the interleukin-2 gene in T cells through a noncanonical octamer-binding site}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31199}, year = {1993}, abstract = {Transforming growth factor \(\beta\) (TGF-\(\beta\)) has a growth-inhibitory effect on numerous different cell types of the immune system, including T lymphocytes. We show in this study that the inhibitory action of TGF-\(\beta\) on T lymphocytes is accompanied by a block of interleukin 2 (IL-2) gene expression which is mediated, at least in part, by inhibition of IL-2 promoter/enhancer activity. The functional analysis of cis-regulatory (protoenhancer) elements of the IL-2 enhancer/promoter region showed that the most TGF-\(\beta\)-responsive element maps to its so-called upstream promoter site. The proto-enhancer activity of the upstream promoter site element is also inhibited by cyclosporin A. The upstream promoter site DNA harbors two noncanonical, closely linked binding sequences for octamer and AP-1-like factors. Both sites are involved in the establishment of IL-2 enhancer activity. Since the activity of genuine octamer sites but not that of AP-1-binding sites is also impaired by TGF-\(\beta\) and cyclosporin A in E14 T lymphoma cells, we conclude that both immunosuppressives interfere with the activity but not the DNA binding of octamer factors in T lymphocytes.}, language = {en} } @article{RiesAlbrightSilvestreetal.1986, author = {Ries, Wolfgang and Albright, Thomas and Silvestre, Jerome and Bernal, Ivan and Malisch, Wolfgang and Burschka, Christian}, title = {Unusual structural features of a siloxane}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31925}, year = {1986}, abstract = {Crystals of the R, S diastereoisomer of [Cp(CO)\(_2\)-FeSiCH\(_3\)F]\(_2\)O are monoclinic, space group ndc (No. 14), with a = 846.0(3) [836.4(1»), b = 768.0(3) [757.1(1»), c = 1548.5(4) [1522.3(2)] pm, {3 = 97.34(3t [97.47(3t] at 300 K [120 K] with Z = 2. Even at 120 K the Si-O-Si fragment is found to be strictly linear due to crystallographically imposed symmetry. To explain the unusual electron distribution derived from the X-ray data collected, several types of possible disorders are discussed, none of which leads to a satisfying explanation. Retaining the Ci symmetry (linear Si-O-Si fragment in the final model) the important bond lengths are Fe-Si 226.7(1) [226.5(1)] pm, Si-F 160.9(2) [161.8(2)] pm, Si-O 160.3(1) [161.1(1)] pm, Si-C 185.0(3) [185.6(3)] pm. The electronic features of this compound were probed via molecular orbital calculations of the extended Hiickel type. It was found that the lone pairs on the siloxane oxygen were tipped away from cylindrical symmetry. The tipping was directed toward the fluorine substituents on the silicon atoms and away from the CpFe(CO)\(_2\) units. A pertubational approach was utilized to rationalize this effect.}, subject = {Chemie}, language = {en} } @article{WieberSchmidtBurschka1985, author = {Wieber, M. and Schmidt, E. and Burschka, Christian}, title = {Dimethyl-tellur-bis(alkylxanthogenate)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31934}, year = {1985}, abstract = {Man erh{\"a}lt Dimethyl-tellur-bis(alkylxanthogenate) des Typs R2Te(S2COR'lz mit R = CH3, sowie R' = CHs, C2Hs, i-CsH7 durch Umsetzung von Dimethyltellur-diiodid mit den st{\"o}chiometrischen Mengen der jeweiligen Natriumxanthogenate. Ebemalls f{\"u}hrt eine Einschiebung von CS2 in die Te-O-Bindung von Dimethyl-tellur-bis(alkoxyden) zu den Dimethyl-tellur-bis(alkylxanthogenaten). Die R{\"o}ntgenstrukturanalyse von (CH3hTe(S2COCH3)2 zeigt, daß das Molek{\"u}l im Kristall als V'-pentagonale Bipyramide vorliegt.}, subject = {Chemie}, language = {de} } @article{WieberWirthBurschka1983, author = {Wieber, M. and Wirth, D. and Burschka, Christian}, title = {Methyldixanthogenatostibane}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31952}, year = {1983}, abstract = {Methyldixanthogenatostibane CH\(_3\)Sb(S\(_2\)COR)\(_2\) erh{\"a}lt man entweder durch Reaktion von Methyldibromstiban mit entsprechenden Natriumxanthogenaten bei tiefen Temperaturen (-78°C) oder durch Einschiebung von CS\(_2\) in Methyldialkoxistibane. Die R{\"o}ntgenstrukturanalyse von CH\(_3\)Sb(S\(_2\)COC\(_2\)H\(_5\))\(_2\) zeigt, daß im Kristall die Chelatliganden das Antimonatom intraund intermolekular koordinieren, so daß eine pentagonal-pyramidale bzw. unter Einbezug des freien Elektronenpaars pentagonal-bipyramidale Koordination am Antimon vorliegt.}, subject = {Chemie}, language = {de} } @article{PeachBurschka1982, author = {Peach, Michael E. and Burschka, Christian}, title = {Metal carbonyl complexes of some aromatic ortho bis(methylthio)ethers}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31964}, year = {1982}, abstract = {Various complexes of the type M(CO)4L and [M(CO)4lzL, M = Cr, Mo, W, have been prepared and characterized. A series of aromatic ortho bis(methylthio)ethers were used as the ligand L. The crystal structures of the free ligand C6(SCH)6 and of the complex Cr(CO)4C6(SCH)6 are reported.}, subject = {Chemie}, language = {en} } @article{BorasioJohnWittinghoferetal.1989, author = {Borasio, Gian Domenico and John, Jacob and Wittinghofer, Alfred and Barde, Yves-Alain and Sendtner, Michael and Heumann, Rolf}, title = {ras p21 protein promotes survival and fiber outgrowth of cultured embryonic neurons}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32621}, year = {1989}, abstract = {Although evidence obtained with the PC12 cell line has suggested a role for the ras oncogene proteins in the signal transduction of nerve growth factor-mediated fiber outgrowth, little is known about the signal transduction mechanisms involved in the neuronal response to neurotrophic factors in nontransformed cells. We report here that the oncogene protein T24-ras, when introduced into the cytoplasm of freshly dissociated chick embryonic neurons, promotes the in vitro survival and neurite outgrowth of nerve growth factor-responsive dorsal rootganglion neurons, brain-derived neurotrophic factor-responsive nodose ganglion neurons, and ciliary neuronotrophic factor-responsive ciliary ganglion neurons. The proto-oncogene product c-Ha-ras also promotes neuronal survival, albeit less strongly. No effect could be observed with truncated counterparts of T24-ras and c-Ha-ras lacking the 23 C-terminal amino acids including the membrane-an-choring, palmityl-accepting cysteine. These results sug-gest a generalized involvement of ras or ras-like proteins in the intracellular signal transduction pathway for neurotrophic factors.}, language = {en} } @article{SendtnerKreutzbergThoenen1990, author = {Sendtner, Michael and Kreutzberg, Georg W. and Thoenen, Hans}, title = {Ciliary neurotrophic factor (CNTF) prevents the degeneration of motor neurons after axotomy}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32637}, year = {1990}, abstract = {The period of natural cell death in the development of rodent motor neurons is followed by a period of sensitivity to axonal injury1-3. In the rat this early postnatal period of vulnerability coincides with that of very low ciliary neurotrophic factor (CNTF) levels in the sciatic nerve before CNTF increases to the high, adult levels4. The developmental time course of CNTF expression, its regional tissue distribution and its cytosolic localization (as suggested by its primary structure)4*5 favour a role for CNTF as a lesion factor rather than a target-derived neurotrophic molecule like nerve growth factor. Nevertheless CNTF exhibits neurotrophic activity in vitro on different populations of embryonic neurons6. To determine whether the vulnerability of motor neurons to axotomy in the early postnatal phase is due to insufficient availability of CNTF, we transected the axons of newborn rat motor neurons and demonstrated that iocal application of CNTF prevents the degeneration of the corresponding cell bodies.}, language = {en} } @article{BanachBuenemannHueseretal.1993, author = {Banach, Katrin and B{\"u}nemann, Moritz and H{\"u}ser, J{\"o}rg and Pott, Lutz}, title = {Serum contains a potent factor that decreases \(\beta\)-adrenergic receptor-stimulated L-type Ca\(^{2+}\) current in cardiac myocytes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32027}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{DerksenTrendelenburgScheeretal.1973, author = {Derksen, J. and Trendelenburg, Michael F. and Scheer, Ulrich and Franke, Werner W.}, title = {Spread chromosomal nucleoli of Chironomus salivary glands}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32209}, year = {1973}, abstract = {No abstract available}, language = {en} } @article{ZentgrafScheerFranke1975, author = {Zentgraf, Hanswalter and Scheer, Ulrich and Franke, Werner W.}, title = {Characterization and localization of the RNA synthesized in mature avian erythrocytes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32410}, year = {1975}, abstract = {No abstract available}, language = {en} } @article{SpringScheerFrankeetal.1975, author = {Spring, Herbert and Scheer, Ulrich and Franke, Werner W. and Trendelenburg, Michael F.}, title = {Lampbrush type chromosomes in the primary nucleus of the green alga Acetabularia mediterranea}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32370}, year = {1975}, abstract = {No abstract available}, language = {en} } @article{EckertFrankeScheer1975, author = {Eckert, W. A. and Franke, Werner W. and Scheer, Ulrich}, title = {Nucleocytoplasmic translocation of RNA in Tetrahymena pyriformis and its inhibition by actinomycin D and cycloheximide}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32399}, year = {1975}, abstract = {No abstract available}, language = {en} } @article{ScheerFranke1972, author = {Scheer, Ulrich and Franke, Werner W.}, title = {Annulate lamellae in plant cells: formation during microsporogenesis and pollen development in Canna generalis Bailey}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32160}, year = {1972}, abstract = {The occurrence of stacked annulate tamellae is documented for a plant cell system, namely for pollen mother cells and developing pollen grains of Canna generalis. Their structural subarchiteeture and relationship to endoplasmie reticulum (ER) and nuclear envelope cisternae is described in detail. The results demonstrate structural homology between plant and animal annulate lamellae and are compatible with, though do not prove, the view that annulate lamcllar cisternae may originate as a degenerative form of endoplasmic retieulum.}, language = {en} } @article{Scheer1975, author = {Scheer, Ulrich}, title = {The rifamycin derivative AF/013 is cytolytic}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32429}, year = {1975}, abstract = {No abstract available}, language = {en} } @article{DabauvalleLoosScheer1990, author = {Dabauvalle, Marie-Christine and Loos, Karin and Scheer, Ulrich}, title = {Identification of a soluble precursor complex essential for nuclear pore assembly in vitro}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32801}, year = {1990}, abstract = {No abstract available}, language = {en} } @article{ScheerTrendelenburgFranke1973, author = {Scheer, Ulrich and Trendelenburg, Michael F. and Franke, Werner W.}, title = {Transcription of ribosomal RNA cistrons: Correlation of morphological and biochemical data}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32195}, year = {1973}, abstract = {Electron microscopic spread preparations of oocyte nucleoli (lampbrush stage) of various amphibians are quantitatively evaluated and the length distributions of repeat-, matrix-, and spacer-units along the rRNA cistron containing axes are given. The correlation of the matrix unit data with the gel electrophoretic pattern of labelled nuclear RNA from the same oocytes is examined. The mean value of the matrix unit corresponds fairly well to a 2.6 million D peak of pre-rRNA but the distribution of both matrix units and labelled pre-rRNAs shows an asymmetrical heterogeneity indicating the existence of some larger primary transcription products of rDNA. Novel structural aspects are described in the spacer regions which suggest that transcription does also take place in DNP regions between the matrix units. A special "prelude piece" coding for approx. 0.5 million D of RNA is frequently visualized in the spacer segments at the beginning of a matrix unit. Possible artifacts resulting from the preparation, the relative congruence between the data obtained using both methods, and the functional meaning of the findings are discussed against the background of current concepts of structural organization and transcription products of nucleolar DNA.}, language = {en} } @article{FrankeTrendelenburgScheer1973, author = {Franke, Werner W. and Trendelenburg, Michael F. and Scheer, Ulrich}, title = {Natural segregation of nucleolar components in the course of plant cell differentiation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32182}, year = {1973}, abstract = {Segregation of the nucleolar components is described in the differentiated nucleus of the generative cell in the growing Clivia and Lilium pollen tubes. This finding of a natural nucleolar segregation is discussed against the background of current views of the correlations of nucleolar morphology and transcriptional activity.}, language = {en} } @article{FrankeScheer1970, author = {Franke, Werner W. and Scheer, Ulrich}, title = {The ultrastructure of the nuclear envelope of amphibian oocytes: a reinvestigation. II. The immature oocyte and dynamic aspects}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32102}, year = {1970}, abstract = {No abstract available}, language = {en} } @article{BeckerWuWaagetal.1991, author = {Becker, Charles R. and Wu, Y. S. and Waag, A. and Kraus, M. M. and Landwehr, G.}, title = {The orientation independence of the CdTe-HgTe valence band offset as determined by x-ray photoelectron spectroscopy}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30784}, year = {1991}, abstract = {No abstract available}, language = {en} } @article{BeckerLauGEICKetal.1975, author = {Becker, Charles R. and Lau, Ph. and GEICK, R. and Wagner, V.}, title = {Antiferromagnetic Resonance in NiO:Co\(^{2+}\) and NiO:Fe\(^{2+}\)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30772}, year = {1975}, abstract = {No abstract available.}, language = {en} } @article{Linsenmair1972, author = {Linsenmair, Karl Eduard}, title = {Die Bedeutung familienspezifischer "Abzeichen" f{\"u}r den Familienzusammenhalt bei der sozialen W{\"u}stenassel Hemilepistus reaumuri Audouin und Savigny}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32663}, year = {1972}, abstract = {No abstract available}, language = {de} } @article{Ruhe1986, author = {Ruhe, Ernstpeter}, title = {Literatur nach der Befreiung - befreite Literatur? Probleme des aktuellen algerischen Romans}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32253}, year = {1986}, abstract = {No abstract available}, language = {de} } @article{GorboulevKutateladzeBarciszewskietal.1977, author = {Gorboulev, Valentin G. and Kutateladze, Tamara V. and Barciszewski, Jan and Axelrod, Vladimir D.}, title = {The separation of oligonucleotides of baker's yeast valine transfer ribonucleic acid 2b by high-voltage electrophoresis on DEAE-paper and by thin-layer chromatography}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32536}, year = {1977}, abstract = {No abstract available}, language = {en} } @article{KozlovGorboulevKurmanovaetal.1981, author = {Kozlov, J. V. and Gorboulev, Valentin G. and Kurmanova, A. G. and Bayev, Alexander A. and Shilov, A. A. and Zhdanov, V. M.}, title = {On the origin of the H1N1 (A/USSR/90/77) influenza virus}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32556}, year = {1981}, abstract = {The influenza virus H1N1 (the A/USSR/90/77 strain) that reappeared in 1977 after the H1N1 influenza viruses had disappeared from the human population, is compared with the A/FM/1/47 and the A/FW/1/50 influenza viruses by the method of oligonucleotide mapping of individual segments of the viral RNAs. Seven genes of the A/USSR/90/77 virus appear to be very similar to the corresponding genes of the A/FW/1/50 virus, whereas the gene coding for the M protein displays considerable homology to the corresponding gene of the A/FM/1/47 virus. The data demonstrate that the A/USSR/90/77 strain is a recombinant virus.}, language = {en} } @article{AgranovskyDolyaGorboulevetal.1981, author = {Agranovsky, A. A. and Dolya, V. V. and Gorboulev, Valentin G. and Kozlov, J. V. and Atabekov, J. G.}, title = {Aminoacylation of barley stripe mosaic virus RNA: polyadenylate-containing RNA has a 3'-terminal tyrosine-accepting structure}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32566}, year = {1981}, abstract = {Barley stripe mosaic virus (BSMV) RNA which was previously reported to contain poly(A) sequences (Agranovsky et al., 1978) can be specifically esterified with tyrosine in vitro in the presence of an aminoacyl-tRNA synthetase fraction from wheat embryos. All the three RNA components of the BSMV strain with a three-component genome (Norwich) and both RNA components of a two-component strain (Russian) can be tyrosylated. The poly(A)-containing (bound to oligo(dT)-cellulose) and poly(A)-deficient(not bound to oligo(dT)-cellulose) fractions of BSMV RNA display a similar amino acidaccepting ability. The nucleotide sequence which accepts tyrosine is coupled with the intact genomic polyadenylated BSMV RNA. The viral RNA isolated after sucrose density gradient centrifugation under drastic denaturing conditions retains its aminoacylating activity, which suggests that this activity is not due to the presence in a BSMV RNA preparation of a tyrosine tRNA associated with BSMV RNA. Inhibition of aminoacylation of the 3'-oxidized (treated with sodium metaperiodate) BSMV RNA suggests that the tyrosine-accepting structure is localized at the 3' terminus of BSMV RNA molecules. It is shown that segments of different lengths obtained upon random fragmentation can be tyrosylated. The 3'-terminal (tyrosine-accepting) poly(A)+ segments can be isolated. The shortest segments of viral RNA capable of being aminoacylated [i.e., containing both tRNA-like structure and poly(A)] consists of approximately 150-200 nucleotides. The analysis of the oligonucleotides derived from individual BSMV RNA components labeled with 32P at the 3' end revealed two types of 3'-terminal sequences different from poly(A). It is suggested that a poly(A) sequence is intercalated between a 3'-terminal tyrosineaccepting structure and the 5'-terminal portion of poly(A)+ BSMV RNA.}, language = {en} } @article{GorboulevAkhundovaGrzeschiketal.1994, author = {Gorboulev, Valentin G. and Akhundova, Aida and Grzeschik, K.-H. and Fahrenholz, Falk}, title = {Organization and chromosomal localization of the gene for the human bombesin receptor subtype expressed in pregnant uterus}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32572}, year = {1994}, abstract = {The gene encoding the human homologue of the guinea pig uterine bombesm receptor [( 1992) Eur. J. Biochem. 208,405] was isolated from a genomic lambda library by the PCR/homology screening approach. The gene spans more than 4 kb and consists of 3 exons and 2 introns. The deduced amino acid sequence shows about 86\% identity to that of guinea pig bombesin receptor. This subtype of bombesin receptor is expressed in the pregnant uterus and in two human tumour cell lines, T47D (ductal breast carcinoma) and A431 (epidermal carcinoma). PCR analysis of genomic DNA from human-mouse cell hybrids allows the cloned gene to be localized to the region q26q28 on chromosome X.}, language = {en} } @article{MuellerKrennSchindleretal.1993, author = {M{\"u}ller, J. G. and Krenn, V. and Schindler, C. and Czub, S. and Stahl-Henning, C. and Coulibaly, C. and Hunsmann, G. and Kneitz, C. and Kerkau, Thomas and Rethwilm, Axel and terMeulen, Volker}, title = {Alterations of thymus cortical epithelium and interdigitating dendritic cells but no increase of thymocyte cell death in the early course of simian immunodeficiency virus infection}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32583}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{KneitzKerkauMuelleretal.1993, author = {Kneitz, Christian and Kerkau, Thomas and M{\"u}ller, Justus and Coulibaly, Cheick and Stahl-Henning, Christiane and Hunsmann, Gerhard and H{\"u}nig, Thomas and Schimpl, Anneliese}, title = {Early phenotypic and functional alterations in lymphocytes from simian immunodeficiency virus infected macaques}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32593}, year = {1993}, abstract = {Phenotypic and functional changes in lymphocytes from rhesus monkeys (Macaca mulatta) were investigated during the first 6 months after infection with SIVmac 32H. Animals preimmunized with keyhole limpet hemocyanin (KLH) were sacrificed l, 3, 6, 12, and 24 weeks post infection. Subset composition and function of lymphocytes from blood, spleen, lymph node and thymus were analysed. In addition to a rapid decline in CD4/CD8 ratios, a massive reduction in CD29+CD4+ cells was seen in the periphery. Although depletion of this subset was observed throughout the course of this experiment, the loss of proliferative T cell responses was most pronounced very early after infection and partially recovered after Month 3. Polyclonal cytotoxic responses were only slightly affected. In the thymus, a gradual, but moderate loss of CD4 + CD8 + immature thymocytes, and a relative increase in both CD4 + and CD8 + mature subsets was observed. Infectious virus was readily recovered from homogenates of lymph node and spleen, but not of thymus tissue. Interestingly, however, virus was detected in thymocytes from all infected animals by cocultivation with a simian immunodeficiency virus (SIV) susceptible cell line.}, language = {en} } @article{PauliRauZhuangetal.1993, author = {Pauli, Paul and Rau, Harald and Zhuang, Ping and Brody, Stuart and Birbaumer, Niels}, title = {Effects of smoking on thermal pain threshold in deprived and minimally-deprived habitual smokers}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32607}, year = {1993}, abstract = {This study examined the antinociceptive effects of smoking in nine habitual smokers under deprived (12 h) and minimally-deprived (< 30min) conditions. Pain threshold for thermal stimuli, heart rate, blood pressure and ratings of mood, arousal, dominance and well-being were assessed before and after smoking a cigarette. Overall, smoking affected all measured variables in the expected direction, leading to increased physiological activity, elevated pain threshold and improved mood. However, most of these effects depended on the deprivation status of the subjects, such that smoking after deprivation increased pain threshold whereas smoking after minimal deprivation did not. Pain threshold before smoking was the same for both groups. Deprived subjects had lower pre-smoke diastolic blood pressure, heart rate, and arousal levels, which rose to equal minimally-deprived subjects scores after smoking.}, language = {en} } @article{PauliSchwenzerBrodyetal.1993, author = {Pauli, Paul and Schwenzer, Michael and Brody, Stuart and Rau, Harald and Birbaumer, Niels}, title = {Hypochondriacal attitudes, pain sensitivity, and attentional bias}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32617}, year = {1993}, abstract = {The relation between hypochondriacal attitudes, thermal pain threshold, and attentional bias toward pain was examined in a non-clinical population (N = 28). Attentional bias was operationalized with a concentration-performance test, which subjects performed while connected to a pain stimulator. Subjects were informed that they would receive a painful stimulus during the second part of the test, while the first part was introduced as pain-free. The pain stimulus was never applied during the test phase. The expectancy of a forthcoming pain stimulus reduced the performance of high hypochondriacal subjects in both parts of the test. Low hypochondriacal subjects, on the other hand, displayed significantly better performance in the first, pain-free compared to the second, pain-related part of the test. Thermal pain thresholds were assessed at four measuring sites (thenar, neck, collar-bone, abdomen), but no relations with hypochondriasis sum scores and locus of pain stimulation were found. A stepwise multiple regression of pain threshold by individual Illness Attitude Scales (IAS) led to 66\% of the variance being explained by the scales 'concern about pain', 'worry about illness', and 'disease phobia'. Results are discussed in terms of amplifying somatic style, preoccupation with or attentional bias toward bodily symptoms, and experimental induction of a hypochondriacal state.}, language = {en} } @article{HeuerReusch1992, author = {Heuer, Dieter and Reusch, Wolfgang}, title = {Einf{\"u}hrung der Kennlinie von elektrischen Leitern in der Sekundarstufe I}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30647}, year = {1992}, abstract = {No abstract available}, language = {de} } @article{ReuschGrimmerHeuer1994, author = {Reusch, Wolfgang and Grimmer, Th. and Heuer, D.}, title = {Magnetfeld l{\"a}ngs der Achse von Kreisstr{\"o}men - Messung und Modellierungen mit Animation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30611}, year = {1994}, abstract = {No abstract available}, language = {de} } @article{GeiseLinsenmair1988, author = {Geise, W. and Linsenmair, Karl Eduard}, title = {Adaptations of the reed frog Hyperbolius viridiflavus to its arid environment. IV. Ecological significance of water economy with comments on thermoregulation and energy allocation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30570}, year = {1988}, abstract = {No abstract available}, language = {en} } @article{KobeltLinsenmair1992, author = {Kobelt, F. and Linsenmair, Karl Eduard}, title = {Adaptations of the reed frog Hyperolius viridiflavus (Hyperoliidae) to its arid environment. VI. The iridophores in the skin as radiation reflectors}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30563}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{Ruhe1983, author = {Ruhe, Ernstpeter}, title = {Cet art bizarre. Adamovs Adaptionen f{\"u}r Theater, Rundfunk und Fernsehen.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32347}, year = {1983}, abstract = {No abstract available}, subject = {Adamov}, language = {de} } @article{Ruhe1988, author = {Ruhe, Ernstpeter}, title = {Normativit{\"a}t versus libertas. Die Entwicklung der franz{\"o}sischen Briefrhetorik im 16. Jahrhundert}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32447}, year = {1988}, abstract = {No abstract available}, subject = {Brief ; Literatursemiotik ; Kongress ; Freiburg <{\"U}echtland}, language = {de} } @article{Ruhe1976, author = {Ruhe, Ernstpeter}, title = {Le Professeur Taranne oder: Comment utiliser ses n{\´e}vroses}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32434}, year = {1976}, abstract = {No abstract available}, language = {de} } @article{ScheerWeisenberger1994, author = {Scheer, Ulrich and Weisenberger, Dieter}, title = {The nucleolus}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32037}, year = {1994}, abstract = {No abstract available}, language = {en} } @article{Dandekar1986, author = {Dandekar, Thomas}, title = {Offenlegungsschrift ({\"u}ber einen Biosensor)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31683}, year = {1986}, abstract = {No abstract available}, language = {de} } @article{KredlerZilloberJohannesetal.1993, author = {Kredler, Christian and Zillober, Christian and Johannes, Frank and Sigl, Georg}, title = {An application of preconditioned conjugate gradients to relative placement in chip design}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31996}, year = {1993}, abstract = {In distance geometry problems and many other applications, we are faced with the optimization of high-dimensional quadratic functions subject to linear equality constraints. A new approach is presented that projects the constraints, preserving sparsity properties of the original quadratic form such that well-known preconditioning techniques for the conjugate gradient method remain applicable. Very-largescale cell placement problems in chip design have been solved successfully with diagonal and incomplete Cholesky preconditioning. Numerical results produced by a FORTRAN 77 program illustrate the good behaviour of the algorithm.}, language = {en} } @article{SchittkowskiZilloberZotemantel1994, author = {Schittkowski, K. and Zillober, Christian and Zotemantel, R.}, title = {Numerical comparison of nonlinear programming algorithms for structural optimization}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31971}, year = {1994}, abstract = {No abstract available}, language = {en} } @article{Zillober1993, author = {Zillober, Christian}, title = {A globally convergent version of the method of moving asymptotes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-31984}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{HegmannChristlPetersetal.1988, author = {Hegmann, Joachim and Christl, Manfred and Peters, Karl and Peters, Eva-Maria and Schnering, Hans Georg}, title = {Conjugated and Nonconjugated Cyclopentenones by a Reaction Cascade from Methyl 6-0xo-5-phenyl-1,3,4-oxadiazine-2-carboxylate and 1,3-Butadienes}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30207}, year = {1988}, abstract = {No abstract available}, language = {en} } @article{LanzendoerferChristl1983, author = {Lanzend{\"o}rfer, Franz and Christl, Manfred}, title = {3,4-Bismethylentricyclo[3.1.0.02,6]hexan - Synthese und Diels-Alder-Addition an Tetracyanethylen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30263}, year = {1983}, abstract = {No abstract available}, language = {en} } @article{BruentrupChristl1973, author = {Br{\"u}ntrup, Gisela and Christl, Manfred}, title = {Darstellung und Thermolyse der Hexamethyldewarbenzol-Cycloaddukte aromatischer Nitriloxide und des Diphenylnitrilimins}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30257}, year = {1973}, abstract = {No abstract available}, language = {en} } @article{ChristlKrimmKraft1990, author = {Christl, Manfred and Krimm, Stefan and Kraft, Arno}, title = {Some Valenes of Benzannelated Five-Membered Heteroarenes - Synthesis and NMR Spectra}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30026}, year = {1990}, abstract = {No abstract available}, language = {en} } @article{ChristlBrunnLanzendorfer1984, author = {Christl, Manfred and Brunn, Erich and Lanzendorfer, Franz}, title = {Reactions of Benzvalene with Tetracyanoethylene, 2,3-Dichloro-5,6-dicyano-rho-benzoquinone, Chlorosulfonyl Isocyanate, and Sulfur Dioxide. Evidence for Concerted 1,4-Cycloadditions to a Vinylcyclopropane System}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30052}, year = {1984}, abstract = {No abstract available}, language = {en} } @article{Christl1975, author = {Christl, Manfred}, title = {Carbon-13 Chemical Shifts and 13C-15N Coupling Constants of 3,4-Dihydroisoquinoline-15N, its 15N-Oxide and their Conjugate Acids}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30071}, year = {1975}, abstract = {No abstract available}, language = {en} } @article{ChristlBuchner1978, author = {Christl, Manfred and Buchner, Wolfgang}, title = {13C-NMR-Spektren von Tetracyclo[4.1.0.02,4.03,5]heptanen, Tetracyclo[5.1.0.02,4.03,5]octanen und Tricyclo[4.1.0.02,7]hept-3-enen. Ungew{\"o}hnliche beta- und gamma-Substituenteneffekte}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30087}, year = {1978}, abstract = {No abstract available}, language = {de} } @article{ChristlLeininger1979, author = {Christl, Manfred and Leininger, Hartmut}, title = {7-Azatetracyclo[4.1.0.02,4.03,5]heptan - ein neues Valenzisomeres des Azepins}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30034}, year = {1979}, abstract = {No abstract available}, language = {de} } @article{ChristlLeiningerBrunn1982, author = {Christl, Manfred and Leininger, Hartmut and Brunn, Erich}, title = {Carbon-13 Nuclear Magnetic Resonance Spectra of 7-Heterotetracyclo[4.1.0.02,4.03,5]heptanes. Annelation Effects of Aziridine, Oxirane, and Thiirane Rings. Unusual gamma and delta Substituent Effects}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30010}, year = {1982}, abstract = {No abstract available}, language = {de} } @article{ChristlLeiningerBrueckner1983, author = {Christl, Manfred and Leininger, Hartmut and Br{\"u}ckner, Dieter}, title = {On the Nature of the Bicyclo [3.2.1]octa-3,6-dien-2-yl Anion: A 13C NMR spectroscopic study}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30060}, year = {1983}, abstract = {No abstract available}, language = {en} } @article{ChristlBraunMueller1992, author = {Christl, Manfred and Braun, Martin and M{\"u}ller, Germar}, title = {1,2,4-Cyclohexatrien, ein Isobenzol, und Bicyclo[4.4.0]deca-1,3,5,7,8-pentaen, ein Isonaphthalin : Erzeugung und Abfangreaktionen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30249}, year = {1992}, abstract = {No abstract available}, language = {de} } @article{HuisgenChristl1967, author = {Huisgen, R. and Christl, Manfred}, title = {1,3-Dipolare Cycloadditionen der Knalls{\"a}ure}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30227}, year = {1967}, abstract = {No abstract available}, language = {de} } @article{ChristlHuisgen1968, author = {Christl, Manfred and Huisgen, R.}, title = {Alte und neue Cycloadditionen der Nitriloxide}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30237}, year = {1968}, abstract = {No abstract available}, language = {de} } @article{Christl1973, author = {Christl, Manfred}, title = {Cycloaddition an Benzvalen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30217}, year = {1973}, abstract = {No abstract available}, language = {de} } @article{Christl1981, author = {Christl, Manfred}, title = {Benzvalen - Eigenschaften und Synthesepotential}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30041}, year = {1981}, abstract = {No abstract available}, language = {de} } @article{VortkampFranzGessleretal.1992, author = {Vortkamp, Andrea and Franz, Thomas and Gessler, Manfred and Grzeschik, Karl-Heinz}, title = {Deletion of GLI3 supports the homology of the human Greig cephalopolysyndactyly syndrome (GCPS) and the mouse mutant extra toes (Xt)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30166}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{GesslerPoustkaCaveneeetal.1990, author = {Gessler, Manfred and Poustka, Annemarie and Cavenee, Webster and Neve, Rachael L. and Orkin, Stuart H. and Bruns, Gail A.}, title = {Homozygous deletion in Wilms tumours of a zinc-finger gene identified by chromosome jumping}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30122}, year = {1990}, abstract = {No abstract available}, language = {en} } @article{VortkampGesslerGrzeschik1991, author = {Vortkamp, Andrea and Gessler, Manfred and Grzeschik, Karl-Heinz}, title = {GLI3 zinc-finger gene interrupted by translocations in Greig syndrome families}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30100}, year = {1991}, abstract = {No abstract available}, language = {de} } @article{Hovestadt1990, author = {Hovestadt, Thomas}, title = {M{\"o}glichkeiten und Kriterien f{\"u}r die Bestimmung von Minimalarealen von Tierpopulationen und {\"O}kosystembest{\"a}nden}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30150}, year = {1990}, abstract = {No abstract available}, language = {de} } @article{MuehlenbergHovestadt1992, author = {M{\"u}hlenberg, Michael and Hovestadt, Thomas}, title = {Das Zielartenkonzept}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30140}, year = {1992}, abstract = {No abstract available}, language = {de} } @article{Hovestadt1990, author = {Hovestadt, Thomas}, title = {Die Bedeutung zuf{\"a}lligen Aussterbens f{\"u}r die Naturschutzplanung}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-30136}, year = {1990}, abstract = {No abstract available}, language = {de} } @article{DandekarArgos1992, author = {Dandekar, Thomas and Argos, P.}, title = {Potential of genetic algorithms in protein folding and protein engineering simulations}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-29974}, year = {1992}, abstract = {No abstract available}, language = {de} }