Search Results - (Author, Cooperation:R. Menzel)
-
1Latest Papers from Table of Contents or Articles in PressD. K. Ma ; M. Rothe ; S. Zheng ; N. Bhatla ; C. L. Pender ; R. Menzel ; H. R. Horvitz
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-07-03Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Caenorhabditis elegans/genetics/*metabolism ; Caenorhabditis elegans Proteins/*metabolism ; Disease Models, Animal ; Eicosanoids/metabolism ; Evolution, Molecular ; Fatty Acids, Unsaturated/metabolism ; Hypoxia-Inducible Factor 1/*metabolism ; Oxygen/*metabolism ; Reperfusion Injury/*metabolismPublished by: -
2Latest Papers from Table of Contents or Articles in PressMichels, B., Zwaka, H., Bartels, R., Lushchak, O., Franke, K., Endres, T., Fendt, M., Song, I., Bakr, M., Budragchaa, T., Westermann, B., Mishra, D., Eschbach, C., Schreyer, S., Lingnau, A., Vahl, C., Hilker, M., Menzel, R., Kähne, T., Lessmann, V., Dityatev, A., Wessjohann, L., Gerber, B.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-10-25Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
3Articles: DFG German National LicensesStaff View
ISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The semiconductor materials Si, SiC, GaP, InP, GaAs, and InAs were irradiated at normal incidence and room temperature with a focused Ga+ ion beam in order to investigate the damage production at high current densities on the order of some A cm−2. The samples were irradiated with ion fluences between 2×1013 and 2×1015 Ga+ cm−2 at an ion energy of 50 keV. The critical ion fluences for amorphization were determined by Rutherford backscattering spectrometry and by Raman spectroscopy. It was found that for SiC, GaP, and InP the number of displacements per atom necessary for amorphization is about the same one as that required for irradiation at low current densities, but in the cases of Si, GaAs, and InAs the high and low current density results differ remarkably. The reason for the different behavior of these materials is discussed. © 2000 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 1365-2958Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineNotes: The Escherichia coli activator and repressor proteins AraC and LexA bind DNA as homodimers. Here we show that their heterodimerization through fused cognate dimerization domains results in repression of AraC-dependent gene activation by LexA. Repression also requires a LexA operator half-site located several helical turns downstream of the AraC operator. This requirement for a specific spatial organization of the operators suggests the formation of a DNA loop between operator-bound Ara/LexA heterodimers, and we propose that heterodimerization with the AraC hybrid provides co-operativity for operator binding and repression by the LexA hybrid. Consistent with a mechanism that involves DNA looping, repression increases when the E. coli DNA looping and transcriptional effector protein IHF binds between the AraC and LexA operators. Thus, we have combined the functions of three distinct transcriptional effector proteins to achieve a new mode of gene regulation by DNA looping, in which the activator protein is an essential part of the repressor complex. The flexibility of the DNA loop may facilitate this novel combinatorial arrangement of those proteins on the DNA. The requirement for protein interactions between the AraC and LexA hybrids for gene regulation suggests that this regulatory circuit may prove useful as an E. coli-based two-hybrid system.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesGreggers, U. ; Smith, A. D. ; Reynolds, D. R. ; Menzel, R. ; Riley, J. R.
[s.l.] : Macmillian Magazines Ltd.
Published 2005Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] In the ‘dance language’ of honeybees, the dancer generates a specific, coded message that describes the direction and distance from the hive of a new food source, and this message is displaced in both space and time from the dancer's discovery of that source. Karl von Frisch ...Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0003-2697Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyType of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 0014-5793Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 0020-1790Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 0022-2836Keywords: [abr] ONPG; o-nitrophenyl-β-d-galactopyranoside ; [abr] PEG 8000; polyethylene glycol 8000 ; [abr] RST; relaxation stimulation of transcription ; [abr] TCA; trichloroacetic acid ; [abr] novo; novobiocinSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 0022-1910Keywords: Apis mellifera ; Electromyograms ; honey bees ; odourant generalization ; proboscis extension conditioningSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 0022-2313Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 0030-4018Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: