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  • Computational Chemistry and Molecular Modeling  (1)
  • Intraoperative radiotherapy  (1)
  • PACS. 36.40.Ei Phase transitions in clusters- 82.30.Qt Isomerization and rearrangement- 05.20.Gg Classical ensemble theory  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Intraoperative radiotherapy of upper abdominal tumours (1992)
    Springer
    European radiology 2 (1992), S. 29-34 
    Details
    ISSN: 1432-1084
    Schlagwort(e): Intraoperative radiotherapy ; Upper abdomen ; Cancer surgery
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstracts Thirty patients with malignant tumours in the upper abdomen underwent surgery and intraoperalive radiation (IORT), using electron beam, to: the surgical bed, residual or unresected tumour. The technical aspects and results of this treatment are described. Renal, adrenal, bile duct and gastrointestinal tumours were treated. along with several other lesions. The surgical procedure consisted in 10 cases simply of exposure of the tumour for IORT and in 20 the tumour was resected. The TORT dose ranged from 10 to: 20 Gv. In 13 patients, external beam radiation was also given to: residual tumour or to: areas of high risk for recurrence. Chemotherapy was given to: 10 patients. Tolerance to: the combined treatment was acceptable; with few complications related to: IORT. The median follow-up and survival time 23 months (range 4-more than 70 months). Local tumour control rate (or tumour stabilisation) is 90%. Distant metastases developed in 19 patients (63%). The actuarial survival rate for the group projected at 70 months (maximum follow-up) is 37%. IORT in useful in the management of tumours arising in the upper abdominal organs, for palliation surgery or when resectability of the tumour is in doubt. Indications for IORT include patients with uncommon tumours of the upper abdomen who are not be candidates for standardised cancer treatment.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00714178
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  • 2
    Digitale Medien
    Digitale Medien
    Orbital contributions to some two-electron properties (1980)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 18 (1980), S. 1465-1472 
    Details
    ISSN: 0020-7608
    Schlagwort(e): Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Analytical formulas are given for the orbital contributions to two-electron properties such as 〈r12n〉, with n = -2, -1, 1, 2, 3, and 4, for atomic systems in which orbitals are expanded as linear combinations of Gaussian functions. Numerical values for all possible contributions in the atoms Li to Ne have been calculated at the Hartree-Fock level. These quantities are compared and discussed to show what kind of information can be obtained from such quantities. The influence of the basis set size has also been considered.
    Zusätzliches Material: 3 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/qua.560180610
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  • 3
    Digitale Medien
    Digitale Medien
    Monte-Carlo simulations of rotating clusters (1998)
    Springer
    The European physical journal 3 (1998), S. 229-236 
    Details
    ISSN: 1434-6079
    Schlagwort(e): PACS. 36.40.Ei Phase transitions in clusters- 82.30.Qt Isomerization and rearrangement- 05.20.Gg Classical ensemble theory
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: A new scheme for estimating densities of states at non zero angular momentum is proposed, using the Monte-Carlo (MC) and multiple histogram methods. It is based on a rigorous expression of the classical density of states for a rotating system. Two features appear: the centrifugal energy ( angular momentum and I the instantaneous inertia tensor in the center of mass reference frame) is added to the potential energy and the configurational densities of states is weighted by . Comparing the MC results for the 13-atom Lennard-Jones cluster and a calculation based on molecular dynamics (MD) shows that this weight is important if the rotation induces a structural change at a finite temperature. The MC algorithm proves to be much more efficient than MD, even at finite .
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100530050170
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