Search Results - (Author, Cooperation:R. Janik)

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  1. 1
    C. B. Hinke ; M. Bohmer ; P. Boutachkov ; T. Faestermann ; H. Geissel ; J. Gerl ; R. Gernhauser ; M. Gorska ; A. Gottardo ; H. Grawe ; J. L. Grebosz ; R. Krucken ; N. Kurz ; Z. Liu ; L. Maier ; F. Nowacki ; S. Pietri ; Z. Podolyak ; K. Sieja ; K. Steiger ; K. Straub ; H. Weick ; H. J. Wollersheim ; P. J. Woods ; N. Al-Dahan ; N. Alkhomashi ; A. Atac ; A. Blazhev ; N. F. Braun ; I. T. Celikovic ; T. Davinson ; I. Dillmann ; C. Domingo-Pardo ; P. C. Doornenbal ; G. de France ; G. F. Farrelly ; F. Farinon ; N. Goel ; T. C. Habermann ; R. Hoischen ; R. Janik ; M. Karny ; A. Kaskas ; I. M. Kojouharov ; T. Kroll ; Y. Litvinov ; S. Myalski ; F. Nebel ; S. Nishimura ; C. Nociforo ; J. Nyberg ; A. R. Parikh ; A. Prochazka ; P. H. Regan ; C. Rigollet ; H. Schaffner ; C. Scheidenberger ; S. Schwertel ; P. A. Soderstrom ; S. J. Steer ; A. Stolz ; P. Strmen
    Nature Publishing Group (NPG)
    Published 2012
    Staff View
    Publication Date:
    2012-06-23
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    ISSN:
    0029-554X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Energy, Environment Protection, Nuclear Power Engineering
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0029-554X(76)90210-X

    Articles: DFG German National Licenses
  3. 3
    Staff View
    ISSN:
    0029-554X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Energy, Environment Protection, Nuclear Power Engineering
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0029-554X(72)90385-0

    Articles: DFG German National Licenses
  4. 4
    Gregory, W.D. ; Janik, R. ; Morelli, L.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0375-9601
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0375-9601(82)90602-8

    Articles: DFG German National Licenses
  5. 5
    Staff View
    ISSN:
    0168-583X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0168-583X(86)90184-9

    Articles: DFG German National Licenses
  6. 6
    Staff View
    ISSN:
    1434-601X
    Keywords:
    PACS. 25.60.Gc Breakup and momentum distributions – 27.20.+n Properties of specific nuclei 6≤A≤19
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract: One-neutron removal cross-sections ( ) of 17, 19C in various targets at about 900 MeV/nucleon, and one-proton removal cross-sections ( ) of 8, 10B at about 1400 MeV/nucleon were measured using the fragment separator FRS at GSI. A significant increase of for 19C compared to its neighbors was observed. The same behavior was found for for the neutron-deficient nucleus 8B compared to the stable isotope 10B. These results support a one-neutron halo structure in 19C and a one-proton halo in 8B.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s100500170143

    Articles: DFG German National Licenses
  7. 7
    Staff View
    ISSN:
    1434-601X
    Keywords:
    21.10.Dr ; 23.60.+e ; 25.70.−z ; 27.90.+b
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract In an experiment carried out to identify element 110, we have observed anα-decay chain, that can be unambiguously assigned to269110. In a scries of preexperiments the excitation functions of the fusion reactions50Ti +208Pb→258104* and58Fe +208Pb→266108* were measured with high precision in order to get the optimum projectile energies for the production of these heavy elements. The cross-section maxima of the 1n evaporation channels were observed at excitation energies of 15.6 MeV and 13.4 MeV, respectively. These data result in an optimum excitation energy of 12.3 MeV of the compound nucleus for the production of269110 in the reaction62Ni +208Pb→269110 + 1n. In irradiations at the corresponding beam energy of 311 MeV we have observed a decay chain of 4 subsequent a decays. This can be assigned to the isotope with the mass number 269 of the element 110 on the basis of delayed α-α coincidences. The accurately measured decay data of the daughter isotopes of the elements 108 to 102, obtained in the previous experiments, were used. The isotope269110 decays with a hair-life of (270 -120 +1300 ) μs by emission of (11.132±0.020) MeV alpha particles. The production cross-section is (3.3 -2.7 +6.2 ) pb.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01291181

    Articles: DFG German National Licenses
  8. 8
    Staff View
    ISSN:
    1434-601X
    Keywords:
    21.10.Dr ; 23.60.+e ; 25.70.−z ; 27.90.+b
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract The new element 111 was produced and unambiguously identified in an experiment at SHIP, GSI Darmstadt. Three nuclei of the isotope272111 were observed in irradiations of209Bi targets with64Ni projectiles of 318 MeV and 320 MeV energy. The cross-sections are (1.7 −1.4 +3.3 ) pb and (3.5 −2.3 +4.6 ) pb, respectively. The nuclei decay by a emission into the new and so far the heaviest isotopes of the elements 109 and 107 with mass numbers A=268 and A=264. Theα-decay chains were followed down to the known nuclei260105 and256Lr.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01291182

    Articles: DFG German National Licenses
  9. 9
    Staff View
    ISSN:
    0168-9002
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0168-9002(87)91217-4

    Articles: DFG German National Licenses
  10. 10
    Staff View
    ISSN:
    0168-9002
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0168-9002(90)90564-M

    Articles: DFG German National Licenses
  11. 11
    Sitar, B. ; Usacev, S. ; Janik, R. ; Chrapan, J. ; Oravec, J.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0029-554X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Energy, Environment Protection, Nuclear Power Engineering
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0029-554X(75)90737-5

    Articles: DFG German National Licenses
  12. 12
    Janik, R. ; Moucka, L. ; Peshekhonov, V.D. ; Sitar, B.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0029-554X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Energy, Environment Protection, Nuclear Power Engineering
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0029-554X(80)90858-7

    Articles: DFG German National Licenses
  13. 13
    Staff View
    ISSN:
    1432-0584
    Keywords:
    Hairy Cell Leukemia ; Deficiency ; IFNα production
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Summary Since the application of low doses of IFN-alpha is necessary to maintain remissions in Hairy Cell Leukemia (HCL) it is of interest whether peripheral blood mononuclear cells (MNC) of HCL patients can be induced in vitro to produce IFN-alpha. 9 patients suffering from advanced HCL were included in the study. The diagnoses were confirmed by characteristic findings in peripheral blood and bone marrow biopsies. For IFN treatment we initially used natural IFN-alpha (Bioferon) and switched later to recombinant IFN-alpha2 (Boehringer). MNC of 5 patients before IFN therapy and of 6 patients during IFN therapy (2–47 weeks) were induced by phythemagglutinin (PHA), Corynebacterium parvum (C.p.), and sendai virus (SV). PHA is known to induce IFN-gamma. Both, C.p. and SV induced IFN-alpha but no IFN-gamma in MNC of healthy controls and of IFN treated breast cancer patients. In HCL patients normal antiviral activities could be induced by PHA. Zero or only low antiviral activities could be induced in MNC from 9 patients tested on 22 occasions. It is concluded that MNC from patients with advanced HCL can be induced to produce IFN-gamma but no IFN-alpha. Since IFN-alpha but not IFN-gamma is produced by monocytes it is likely that reduced numbers of monocytes which were found in our HCL patients before and during IFN treatment account for the described deficiency of IFN-alpha production.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00320535

    Articles: DFG German National Licenses
  14. 14
    Bialas, A. ; Janik, R.
    Springer
    Published 1994
    Staff View
    ISSN:
    1434-6052
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract Rapidity and transverse momentum distributions of heavy quarks produced by double exchange of Donnachie-Landshoff pomeron are presented and discussed. In the limit of small transverse momentum of the pair, the cross-section is almost independent of the sum ofq and $$\bar q$$ rapidities, but does depend on the rapidity difference and (rather strongly) on the transverse momenta of the produced quarks.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01555908

    Articles: DFG German National Licenses
  15. 15
    Staff View
    ISSN:
    1572-9486
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract At the proton energy of 70 GeV on the internal target of the IHEP proton synchrotron the search was made for magnetic charges over the Vavilov-Cherenkov radiation and characteristic polarization. Eight Cherenkov counters of a special construction served as detectors. Possible events were recorded with two fast five-ray oscillographs triggered by 6-fold coincidences. The efficiency of the magnetic charge recording was about 10%. The proton beam of 6.4×1014 intensity traversed the target-radiator; and not a single case of the production of the Dirac monopole with the magnetic charge from minimal one of about 2/3g D (g D =68.5e) up to2g D was recorded. This means that in the conditions of our experiment the upper boundary of the cross section of the Dirac monopole production by 70 GeV protons per nucleon of Si and O nuclei for magnetic charges of masses from 3 up to 5·5mp was found to beσ(95%) ≲10−40 cm2.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01589843

    Articles: DFG German National Licenses
  16. 16
    Janik, R. ; Gerhardt, W.

    New York, NY : Wiley-Blackwell
    Published 1989
    Staff View
    ISSN:
    0021-8383
    Keywords:
    Chemistry ; Organic Chemistry
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    The oxidative decomposition of two structural isomers of dipropylene glycol, i.e. 2,4-dimethyl-3-oxapentandiol-1,5 (1) and 4-oxaheptandiol-2,6 (2) was studied. The maximum rate of oxidation of glycol 1 was ca. 20 times lower than that of glycol 2. In the products of oxidation 15 different compounds were detected for the former glycol and 20 compounds for the latter. The products of decomposition were the mixtures of water and carboxy acid, acetal, alcohol, aldehyde, ketone, ester, unsaturated ether and hydroperoxy type of compounds of different structure. The mechanism of product formation is discussed.
    Additional Material:
    2 Tab.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/prac.19893310410

    Articles: DFG German National Licenses