Search Results - (Author, Cooperation:J. Baehr)

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  1. 1
    D. Matei ; J. Baehr ; J. H. Jungclaus ; H. Haak ; W. A. Muller ; J. Marotzke
    American Association for the Advancement of Science (AAAS)
    Published 2012
    Staff View
    Publication Date:
    2012-01-10
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Bähr, J.

    Wiesbaden : Periodicals Archive Online (PAO)
    Published 1976
    Staff View
    ISSN:
    0016-7479
    Topics:
    Geography
    Notes:
    Rezensionen
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1976-064-03-000008

    Articles: DFG German National Licenses
  3. 3
    Bähr, J.

    Wiesbaden : Periodicals Archive Online (PAO)
    Published 1980
    Staff View
    ISSN:
    0016-7479
    Topics:
    Geography
    Notes:
    Rezensionen
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1980-068-03-000021

    Articles: DFG German National Licenses
  4. 4
    BÄHR, J. ; MERTINS, G.

    Wiesbaden : Periodicals Archive Online (PAO)
    Published 1981
    Staff View
    ISSN:
    0016-7479
    Topics:
    Geography
    Notes:
    Abhandlungen (mit summaries)
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1981-069-01-000001

    Articles: DFG German National Licenses
  5. 5
    Bähr, J.

    Wiesbaden : Periodicals Archive Online (PAO)
    Published 1987
    Staff View
    ISSN:
    0016-7479
    Topics:
    Geography
    Notes:
    Rezensionen
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1987-075-01-000006

    Articles: DFG German National Licenses
  6. 6
    Bähr, J. ; Jürgens, U.

    Wiesbaden : Periodicals Archive Online (PAO)
    Published 1990
    Staff View
    ISSN:
    0016-7479
    Topics:
    Geography
    Notes:
    Abhandlungen (mit summaries)
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1990-078-02-000003

    Articles: DFG German National Licenses
  7. 7
    Staff View
    ISSN:
    0016-6480
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0016-6480(90)90166-J

    Articles: DFG German National Licenses
  8. 8
    Baehr, J.-C. ; Porcheron, P. ; Papillon, M. ; Dray, F.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0022-1910
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0022-1910(79)90009-X

    Articles: DFG German National Licenses
  9. 9
    Staff View
    ISSN:
    0300-9629
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0300-9629(82)90366-8

    Articles: DFG German National Licenses
  10. 10
    Staff View
    ISSN:
    0300-9629
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0300-9629(84)90078-1

    Articles: DFG German National Licenses
  11. 11
    Huignard, J. ; Baehr, J. C. ; Desroches, P. ; Mandon, N.
    Springer
    Published 1996
    Staff View
    ISSN:
    1570-7458
    Keywords:
    Bruchidae ; glucosides ; Leguminosae ; larval development ; host-plant adaptation ; β-glucosidase
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00194747

    Articles: DFG German National Licenses
  12. 12
    Bähr, J.

    Wiesbaden : Periodicals Archive Online (PAO)
    Published 1980
    Staff View
    ISSN:
    0016-7479
    Topics:
    Geography
    Notes:
    Rezensionen
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1980-068-04-000017

    Articles: DFG German National Licenses
  13. 13
    Papillon, M. ; Porcheron, P. ; Baehr, J. C.
    Springer
    Published 1980
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Summary A fall in diurnal rearing temperature (from 33°C to 28°C) during the 2 last larval instars ofSchistocerca gregaria induces a lengthening of development and a slowing down of growth. At 28°C, circulating levels of juvenile hormones, particularly those of JH3, diminish from the middle of the 4th instar but ecdysteroids and proteins accumulate in haemolymph.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01975124

    Articles: DFG German National Licenses
  14. 14
    Lafon-Cazal, M. ; Baehr, J. C.
    Springer
    Published 1988
    Staff View
    ISSN:
    1420-9071
    Keywords:
    Octopamine ; juvenile hormone ; corpora allata ; locust
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Summary Octopamine enhanced the release of JH3 from isolated corpora allata of locusts in short-term cultures. This effect was suppressed when phentolamine (inhibitor of the octopamine receptors) was added to the culture medium. Moreover an octopamine-sensitive adenylate cyclase was found in the corpora allata. The results suggest a positive octopaminergic control on the activity of the corpora allata.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01941193

    Articles: DFG German National Licenses
  15. 15
    Bitsch, C. ; Baehr, J. Cl. ; Bitsch, J.
    Springer
    Published 1985
    Staff View
    ISSN:
    1420-9071
    Keywords:
    Firebrat ; Thermobia domestica ; hemolymph ; primitive insects ; juvenile hormones ; precocene application ; vitellogenesis ; molting cycle ; reproductive cycle
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Summary JH I and JH III immunoreactive substances were detected in the hemolymph of imaginal females of the primitive insectThermobia domestica. Periodic changes in the levels of these hormones were investigated in correlation with molting and reproductive cycles in inseminated, virgin and precocene-treated females. The presumed influence of JH III on the various phases of vitellogenesis is discussed, also taking into account the periodic changes of the hemolymphatic ecdysteroid levels.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF02004532

    Articles: DFG German National Licenses
  16. 16
    Porcheron, P. ; Papillon, M. ; Baehr, J. C.
    Springer
    Published 1982
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Summary As a result of the decrease of diurnal rearing temperature from 33 to 28°C the following phenomena were induced in adults ofSchistocerca gregaria: a) In females, a delay in the appearance of maximal levels of JH III and ecdysteroids in the hemolymph, a slowing down of oocyte growth, and an accumulation of hemolymph proteins; b) in males, a decrease of hemolymphatic JH III levels without changes in protein levels.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01953683

    Articles: DFG German National Licenses
  17. 17
    Trabalon, M. ; Campan, M. ; Baehr, J. C. ; Mauchamp, B.
    Springer
    Published 1987
    Staff View
    ISSN:
    1420-9071
    Keywords:
    Juvenile hormone III biosynthesis ; radioimmunoassay ; ovarian maturation ; sexual receptivity ; Calliphora vomitoria
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Summary JH III is the only JH detected by GLC-MS in medium from in vitro incubations of corpora allata of adult females ofCalliphora vomitoria. When corpora allata were removed from females at various times during the reproductive cycle and the JH III produced by the glands in vitro measured by a JH III radioimmunoassay, an increase in the level of synthesis was found to occur before previtellogenesis (0–24 h). A second increase appeared at the onset of vitellogenesis (72–83 h) and continued until the end of vitellogenesis (96 h) and the occurrence of chorionation (120 h). Since sexual receptivity develops with vitellogenesis, the significantly higher levels of JH III biosynthesis in vitro at this time supports a possible role for JH in the acquisitive of receptivity.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01956054

    Articles: DFG German National Licenses
  18. 18
    Staff View
    ISSN:
    1434-6052
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract The double-differential inclusive di-jet cross section in photoproduction processes is measured with the H1 detector at HERA. The cross section is determined as a function of the average transverse jet energyE T jets for ranges of the fractional energyξ γ jets of the parton from the photon side. An effective leading order parton distribution in the photon is determined at large parton fractional energies for scale between 80 〈p T 2 〈 1250 GeV2. The measurement is compatible with the logarithmic scale dependence that is predicted by perturbative QCD.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01245800

    Articles: DFG German National Licenses
  19. 19
    Staff View
    ISSN:
    1434-6052
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract A search in the H1 experiment at HERA for scalar and vector leptoquarks, leptogluons and squarks coupling to first generation fermions is presented in a data sample corresponding to an integrated luminosity of 425 nb−1. For masses ranging up to ∼275 GeV, no significant evidence for the direct production of such particles is found in various possible decay channels. At high masses and beyond the centre of mass energy of 296 GeV a contact interaction analysis is used to further constrain the couplings and masses of new vector leptoquarks and to set lower limits on compositeness scales.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01957769

    Articles: DFG German National Licenses
  20. 20
    Staff View
    ISSN:
    1434-6052
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract We present an experimental study of theep→eγ+p andep→eγ+X processes using data recorded by the H1 detector in 1993 at the electron-proton collider HERA. These processes are employed to measure the luminosity with an accuracy of 4.5 %. A subsample of theep→eγ+X events in which the hard photon is detected at angles θ γ ′ ≤ 0.45 mrad with respect to the incident electron direction is used to verify experimentally the size of radiative corrections to theep→eX inclusive cross section and to investigate the structure of the proton in theQ 2 domain down to 2 GeV2, lower than previously attained at HERA.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01579628

    Articles: DFG German National Licenses