53 research outputs found
Neue Strategien fĂŒr die 18 FâRadiochemie
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90201/1/1132_ftp.pd
Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering off Si and Zr
We report on a new measurement of the beam-normal single spin asymmetry
in the elastic scattering of 570 MeV transversely polarized
electrons off Si and Zr at . The
studied kinematics allow for a comprehensive comparison with former results on
C. No significant mass dependence of the beam-normal single spin
asymmetry is observed in the mass regime from C to Zr.Comment: Submitted for publication to Physics Letters
Measurement of polarization transfer in the quasi-elastic process
Polarization transfer to a bound proton in polarized electron knock-out
reactions, , is a powerful tool to look
for in-medium modification of the bound proton. It requires comparison to
calculations which consider the many-body effects accompanying the quasi-free
process. We report here measured components , , and
their ratio , of polarization transfer to protons
bound in , which is described well by the shell model and for
which reliable calculations are available. While the calculations capture the
essence of the data, our statistical precision allows us to observe deviations
which cannot be explained by simple scaling, including by varying the proton
electromagnetic form factor ratio . We further explore the deviations
of the ratio of the polarization transfer components from that of a free
proton, , and its dependence on the bound-proton virtuality
Die unterschiedlichen Finanzierungsquellen von NPOs. AusgewÀhlte deskriptive Ergebnisse zur NPO-Finanzierungsbefragung 2010
(no abstract available
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Studies directed toward the total synthesis of cortistatin A
textStudies directed toward the total synthesis of the cytotoxic steroidal alkaloid
cortistatin A were carried out. In a model system, it was determined that a sequence of
reactions involving a lithiocyclopropene addition-intramolecular [4 + 2] cycloaddition
cascade and subsequent cyclopropylcarbinyl rearrangement allowed for ready access to
the BCD rings of the core steroid. Implementation of this methodology en route to the
fully functionalized natural product proved an effective means for the elaboration of the
A ring carbocyclic framework.Chemistry and Biochemistr
Oesterreich im internationalen Steuerwettbewerb
Available from Bibliothek des Instituts fuer Weltwirtschaft, ZBW, Duesternbrook Weg 120, D-24105 Kiel W 110 (93) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman
Occurrence and potential importance of angiotensin-converting enzyme in semen of boars: Zu Vorkommen und möglicher Bedeutung von Angiotensin-Converting Enzym im Sperma von Ebern
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