@article{SchneiderHelmke1986,
  author    = {Schneider, Wolfgang and Helmke, Andreas},
  title     = {The role of classroom differences in achievement changes},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-87356},
  year      = {1986},
  abstract  = {A combined criterion involving the regression slopes of pretest-posttest achievement scores and achievement gain scores was used to classify similar types of classrooms. Mathematics achievement differences among 632 fifth graders were analysed in a longitudinal design and explained in a structural equation framework provided by LISREL, separately for four types of classrooms. The results replicated the findings of an earlier study (Schneider \& Treiber, 1984) in that the local nature of achievement models could be demonstrated. That is, the structural components of the causal models could not be generalized across the four groups of classrooms. The inclusion of a second grouping criterion (i. e., achievement gainJ proved useful in that a better model fit was always obtained for classrooms with high achievement gains. As a global model test ignoring group and classroom membership did mask the differential validity of the achievement model in the various subgro.ups, the need for multilevel approaches was emphasized.},
  subject      = {Schulleistung},
  language  = {en}
}
@article{ZielinskiSchneider1986,
  author    = {Zielinski, Werner and Schneider, Wolfgang},
  title     = {Diagnostische M{\"o}glichkeiten bei Lese- und Rechtschreibschwierigkeiten - Folgerungen aus der Forschung},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-87325},
  year      = {1986},
  abstract  = {No abstract available.},
  subject      = {Rechtschreibschw{\"a}che},
  language  = {de}
}
@article{TackeBentlageFeltenLinohetal.1986,
  author    = {Tacke, Reinhold and Bentlage-Felten, Anke and Linoh, Haryanto and Magda, Stephen},
  title     = {Sila-Analoga des Triparanols und Ethamoxytriphetols: Synthese sowie pharmakologische und toxikologische Eigenschaften},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-86940},
  year      = {1986},
  abstract  = {No abstract available.},
  language  = {de}
}
@article{TackeLinkJoppienetal.1986,
  author    = {Tacke, Reinhold and Link, Matthias and Joppien, Hartmut and Ernst, Ludger},
  title     = {Sila-Substitution des Akarizids Fenbutatinoxid und einiger seiner Derivate: Synthese und Eigenschaften von Hexakis[(dimethylphenylsilyl)methyl]distannoxan und Tris[(dimethylphenylsilyl)methyl](1,2,4-triazol-1-yl)stannan},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-86937},
  year      = {1986},
  abstract  = {No abstract available.},
  subject      = {Chemische Synthese},
  language  = {de}
}
@article{ZimmermannStopper1986,
  author    = {Zimmermann, U. and Stopper, Helga},
  title     = {Elektrofusion und Elektropermeabilisierung von Zellen},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-86865},
  year      = {1986},
  abstract  = {No abstract available.},
  subject      = {Elektrofusion},
  language  = {de}
}
@article{LohseKlotzSchwabe1986,
  author    = {Lohse, Martin J. and Klotz, Karl-Norbert and Schwabe, Ulrich},
  title     = {Effectes of temperature and membrane phase transitions on ligand binding to a2-receptors of human platelets},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-86023},
  year      = {1986},
  abstract  = {The binding of agonists and antagonists to a2-adrenergic receptors of human platelets was studied. The receptors showed homogeneaus affinities for antagonists but two affinity states for the agonist (-)-epinephrine, which were modulated by guanine nucleotides. Van't Hoffplots of antagonist binding had a break point at about 18° and considerable diversity between 18° and 0°. Agonist binding to both affinity states showed a similar break point; agonist binding to the high affinity state was characterized by a large entropy component compared to the low affinity state. This entropy component was reduced at higher concentrations of sodium, indicating that it may be due to Iiberation of sodium ions. Measurements of the fluorescence of 1-anilin-8-naphthalenesulfonate showed thermotropic phase transitions of theplatelet membranes at about 17°. The transition temperature was decreased to about 12° by addition of 1 0 mM octanoic acid. Octanoic acidalso shifted the break points of the van't Hoffplot of antagonist and low affinity agonist binding from 18° to 12°. High affinity agonist binding, however, remained unchanged. It is concluded that agonist-specific thennodynamic characteristics of ligand binding to a2-receptors of human platelets can only be investigated by regarding differences between high and low affinity agonist binding. These differences include an entropy increase upon Iigand binding, which is in part due to enhanced liberation of sodium ions, and a loss of sensitivity to fluidity changes in the outer layer of the plasma membrane.},
  subject      = {Molekularpharmakologie},
  language  = {en}
}
@article{DohrmannEdgarSendtneretal.1986,
  author    = {Dohrmann, Ulrike and Edgar, David and Sendtner, Michael and Thoenen, Hans},
  title     = {Muscle-derived factors that support survival and promote fiber outgrowth from embryonic chick spinal motor neurons in culture},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-72862},
  year      = {1986},
  abstract  = {The purpose of the experiments reported is to provide an unambiguous demonstration that embryonie skeletal muscle contains factors that act directly on embryonie spinal motor neurons both to support their survival and to stimulate the outgrowth of neurites. Cells of lumbar and brachial ventral spinal cords from 6-day-old chick embryos were separated by centrifugation in a two-step metrizamide gradient, and a motor neuron enriched fraction was obtained. Motor neurons were identified by retrogradely labeling with rhodamine isothiocyanate, and were enriched fourfold in the motor neuron fraction relative to unfractionated cells. In culture, the isolated motor neurons died within 3-4 days unless they were supplemented with embryonie chick skeletal muscle extract. Two functionally distinct entities separable by ammonium sulfate precipitation were responsible for the effects of muscle extracts on motor neurons. The 0-25\% ammonium sulfate precipitate contained molecules that alone bad no effect on neuronal survival but when bound to polyornithine-coated culture substrata, stimulated neurite outgrowth and potentiated the survival activity present in muscle. Most of this activity was due to a laminin-like molecule being immunoprecipitated with antisera against laminin, and immunoblotting demonstrated the presence of both the A and B chains of laminin. A long-term survival activity resided in the 25-70\% ammonium sulfate fraction, and its apparent total and specific activities were strongly dependent on the culture substrate. In contrast to the motor neurons, the cells from the other metrizamide fraction (including neuronal cells) could be kept in culture for a prolonged time without addition of exogenous factor(s).},
  subject      = {Nervenzelle},
  language  = {en}
}
@article{LohseKlotzSchwabe1986,
  author    = {Lohse, Martin J. and Klotz, Karl-Norbert and Schwabe, Ulrich},
  title     = {Agonist photoaffinity labeling of A1 adenosine receptors: Persistent activation reveals spare receptors},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-87966},
  year      = {1986},
  abstract  = {No abstract available.},
  subject      = {Pharmazie},
  language  = {en}
}
@article{Scheer1986,
  author    = {Scheer, Ulrich},
  title     = {Das Chromatin : seine Struktur und Funktion},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-80790},
  year      = {1986},
  abstract  = {no abstract available},
  subject      = {Chromatin},
  language  = {de}
}
@article{Linsenmair1986,
  author    = {Linsenmair, Karl Eduard},
  title     = {Adaptations of the reed frog Hyperbolius viridiflavus to its arid environment: II. Some aspects of the water economy of H. viridiflavus nitidulus under wet and dry ...},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-78395},
  year      = {1986},
  abstract  = {Adaptations to aridity ofthe reedfrog Hyperolius viridiflavus nitidulus, living in different parts of the seasonally very dry and hot West African savanna, are investigated ...},
  subject      = {Zoologie},
  language  = {en}
}
@article{HackerSchrettenbrunnerSchroeteretal.1986,
  author    = {Hacker, J{\"o}rg and Schrettenbrunner, A. and Schr{\"o}ter, G. and Schmidt, G. and D{\"u}vel, H. and Goebel, W.},
  title     = {Characterization of Escherichia coli wild-type strains by means of agglutination with antisera raised against cloned P-, S- and MS-fimbriae antigens, hemagglutination, serotyping and hemolysin-production},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-72992},
  year      = {1986},
  abstract  = {E. coli stcains isolated from patients with urinary tcact infecrions (UTn very often possess mannose"sensitive (MS) and mannose-resistant (MR) adherence facmrs (fimbriae). According to their receptor specificity the mannose-resistant adhesins can be divided inm several types, P, S, M and X. We have cloned rhe determinants of rhree groups of UTI E. coli adhesins, MS, p and S, and prepared specific aorisera against the fimbriae antigens. 189 hernagglutination (HA+) -positive stcains, 96 fecal isolates and 93 strains isoJated from UTI . have been tesred with rhese specific antisera and further characterized by receptor specific : HA, HA parteras and further of rhe "common 0 serogroups" 01, 02, 04, 06, 07, 08, 018, ' 025, 075, most prevalenr in UTI, and hemolysin production. · 68 (73 \%) of the UTI srrains a.nd 50 (52\%) of the fecal isolates showed P-receptor specificiry; 16 (17\%) of the uropathogenic bacteria and 33 (34\%) of the fecal strains exhibited S, M or X-fimbriae antigens. 24\% of rhe P-hemagglutinating (P+) strains reacted wirb P (F8)-specific antiserum. In contrast, more than three quaner of the s+-srrains were agglutinated by S-specific antiserum. HA-pattern VJ and 018 amigen were found to be associared with P-fimbriae strains, wbereas HA-pattern V and VII and the 0 anrigens 02 (M-type), 06 and 018 (5-type) occurred most frequently in p- -strains. A high percentage of P-fimbriated strains showed mannose-sensitive hemagglurination and hemolysin production.},
  subject      = {Escherichia coli},
  language  = {en}
}
@article{KekowUlrichs1986,
  author    = {Kekow, J. and Ulrichs, Karin},
  title     = {Determination of total immunoreactive rat insulin (IRI) in culture supernatants of rat islets by an enzyme linked immunosorbent assay (ELISA) as a routine method to assess the viability of rat islets prior to their use in islet transplantation},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-72989},
  year      = {1986},
  abstract  = {No abstract available},
  subject      = {Immunobiologie},
  language  = {en}
}
@article{LausUlrichsMuellerRuchholtz1986,
  author    = {Laus, R. and Ulrichs, Karin and M{\"u}ller-Ruchholtz, W.},
  title     = {Molecular Specificity of Human Heterophile Antibodies (HHA) in Normal Human Serum (NHS) Reacting with Xenogeneic Cells.},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-72921},
  year      = {1986},
  abstract  = {No abstract available},
  subject      = {Immunobiologie},
  language  = {en}
}
@article{SchneiderSchauliesHuenigSchimpletal.1986,
  author    = {Schneider-Schaulies, J{\"u}rgen and H{\"u}nig, T. and Schimpl, A. and Wecker, E.},
  title     = {Kinetics of cellular oncogene expression in mouse lymphocytes ; I. Expression of c-myc and c-ras Ha in T lymphocytes induced by various mitogens},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-54803},
  year      = {1986},
  abstract  = {Murine spienie T lymphocytes display maximal cellular myc gene (c-myc) expression already 3 h after concanavalin A timulation and sub equent down-regulation before the onset of DNA syntbesis. Stimulation by leucoagglulinin in the prcsence or absence of interleukin 2 Ieads to only low initiaJ Ievels of c-myc-specific RNA which, however, increase later on. A similar pattero of c-myc expression is shown by the Lyt- 2+ T cell subpopulation stimuiated with eilher concanavalin A or leucoagglutinin in the prescncc of interleukin 2. Although eH]thyn1idine incorporation was identical, the leucoagglutinin-stimulated Lyt-2+ T cells werc void of any demon. trable c-mycspeci. fic RNA at 3 h post-stimulation. Thus, the kinetics of c-myc expression in mause T lymphocytes arenot at all uniform, but depend on the mitogen and the subpopulation. [n contrast, lcvel8 of c-rasH•-spccific R A wcre always low at early times, always increased towards tbe onset ofDNA synthesis and down-regulationwas not observed.},
  subject      = {Immunologie},
  language  = {en}
}
@article{EimerlSirenFeuerstein1986,
  author    = {Eimerl, J. and Sir{\´e}n, Anna-Leena and Feuerstein, G.},
  title     = {Systemic and regional hemodynamic effects of leukotrienes D\(_4\) and E\(_4\) in the conscious rat},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-63317},
  year      = {1986},
  abstract  = {No abstract available},
  subject      = {Neurobiologie},
  language  = {en}
}
@article{SirenFeuersteinLabrooetal.1986,
  author    = {Sir{\´e}n, Anna-Leena and Feuerstein, G. and Labroo, V. M. and Coleen, L. A. and Lozovsky, D.},
  title     = {Effect of thyrotropin releasing hormone and some of its histidine analogs on the cardiovascular system and prolactin release in the conscious rat},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-63307},
  year      = {1986},
  abstract  = {The cardiovascular and endocrine activity of three analogs of thyrotropin releasing hor.mone (TRH), 4-nitro-imidazole TRH (4-nitroTRH), 2-trifluoro-methyl-imidazole TRH (2-TFM-TRH) and 4-trifluoromethyl- imidazole TRH (4-TFM-TRH), was compared to TRH in conscious rats. Injection of TRH or the three analogs (1 mg/kg or 5 mg/kg) into the arterial line induced increases in mean arterial pressure, pulse pressure and heart rate and raised plasma prolactin (PRL). None of the analogs were more potent than TRH in inducing cardiovascular changes. The 4-TFM-TRH was significantly less potent than the 2-TFM-TRH in increasing blood pressure, while the nitro-TRH was more potent than the 2-TFM-TRH in producing tachycardia. TRH induced a two-fold increase in PRL at the 5 mg/kg dose, while both the fluorinated analogs elici ted a 4 to 5 fold increase in PRL at the higher dose. The present results suggest that the receptors for TRH-elicited PRL release differ from TRH-receptors involved in its cardiovascular actions.},
  subject      = {Neurobiologie},
  language  = {en}
}
@article{SirenFeuerstein1986,
  author    = {Sir{\´e}n, Anna-Leena and Feuerstein, G.},
  title     = {Effect of T-2 toxin on regional blood flow and vascular resistance in the conscious rat},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-63293},
  year      = {1986},
  abstract  = {The acute effect ofT-2 toxemia on local blood flow and vascular resistance in hindquarter. mesenteric. and renal vascular beds was continuously measured by the directional pulsed Doppler technique in conscious, male Sprague-Dawley rats. Intravenous injection ofT-2 toxin (I mg/kg) in the conscious rat reduced blood flow and increased vascular resistance in all blood vessels studied but had no significant effect on mean arterial pressure or heart rate. The blood flow in hindquarters gradually decreased to a minimum of -77 ± 9\% (mean ±SE) 6 hr after the toxin injection. The hindquarter vascular resistance concomitantly increased to a maximum value of + 323 ± 69\% above thc resistance before toxin administration. Mesenteric and renal blood flow initially increased (slightly) and then gradually decreased. The maximum drop of blood flow, -90 ± 13\% and -76 ± 13\% for the mesenteric and renal vascular beds, respectively, was achieved 4 hr after T-2 toxin injection and the blood flow values remained low for up to 6 hr. Simultaneously with the impairment of},
  subject      = {Neurobiologie},
  language  = {en}
}
@article{SirenPowellFeuerstein1986,
  author    = {Sir{\´e}n, Anna-Leena and Powell, E. and Feuerstein, G.},
  title     = {Thyrotropin releasing hormone in hypovolemia: a hemodynamic evaluation in the rat},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-63288},
  year      = {1986},
  abstract  = {ln the present study the effects of thyrotropin releasing hormone (TRH) and its stable analogue, CG3703, on cardiac output (thermodilution, Cardiomax) and regional blood flow (BF; directional pulsed Doppler technique) were investigated in hypovolemic hypotension in the rat. In urethan-anesthetized rats TRH (0.5 or 2 mg/ kg ia) or CG3703 (0.05 or 0.5 mg/kg ia) reversed the bleeding (27\% of the blood volume)-induced decreases in mean arterial ...},
  subject      = {Neurobiologie},
  language  = {en}
}
@article{PaakkariNurminenSiren1986,
  author    = {Paakkari, I. and Nurminen, M-L. and Sir{\´e}n, Anna-Leena},
  title     = {Cardioventilatory effects of TRH in anesthetized rats: role of the brainstem},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-63277},
  year      = {1986},
  abstract  = {Cardioventilator responses were studied in anaesthetized rats after injections of TRH into either the lateral (i.c.v. lat) or the fourth (i.c.v. IV) cerebral ventricles. TRH induced a morerapid hypertensive effect i.c.v. IV than i.c.v. lat. Blocking of the cerebral aqueduct abolished the hypertensive and tachypnoeic effects of TRH i.c.v. lat but not those of TRH i.c.v. IV. It is concluded that TRH increased blood pressure and ventilation rate via brain stem structures close to the fourtli ventricle.},
  subject      = {Neurobiologie},
  language  = {en}
}
@article{McCarthySebaldGrossetal.1986,
  author    = {McCarthy, J. E. and Sebald, Walter and Gross, G. and Lammers, R.},
  title     = {Enhancement of translational efficiency by the Escherichia coli atpE translational initiation region: its fusion with two human genes},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62626},
  year      = {1986},
  abstract  = {No abstract available},
  subject      = {Biochemie},
  language  = {en}
}