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  • 1
    Electronic Resource
    Electronic Resource
    Potential energy surfaces and dynamics in core-ionized and core-excited states (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 698-715 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Electronic properties of core states are discussed with respect to symmetry and localization. Particular attention is paid to the potential energy surfaces and to the construction of the Hamiltonian governing the nuclear dynamics in the manifold of interacting core states. For a system with N equivalent sites on which electrons (holes) may localize, the total multidimensional Hamiltonian is reduced to N equivalent Hamiltonians of low dimension and distorted symmetry. The various contributions to these Hamiltonians due to core and valence electrons and their interaction are discussed. The analytical results are compared with the results of ab initio computations on C3H+3 and B3N3H6 which serve as examples throughout. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470104
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  • 2
    Electronic Resource
    Electronic Resource
    Core-valence doubly ionized states: General aspects, examples, production mechanisms (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 105 (1996), S. 11108-11133 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Electronic double vacancies with one vacancy in the valence shell and one in the core play a role in several physical processes. Such core-valence double vacancies are theoretically analyzed and related to possible experiments. The corresponding wavefunctions and energies for CO, N2, and H2CO are computed using propagator and configuration interaction methods. The numerical results are analyzed in some detail and are compared to the corresponding single valence vacancies. The analysis is performed by breaking up the binding energy of the double vacancy into the most relevant components, such as hole–hole repulsion and relaxation contributions. It is shown that the double ionization potential is essentially given by single ionization quantities. In particular, we find a kind of "Koopmans theorem'' for those dicationic states with an outer valence hole: the double ionization potential (shifted by the core ionization energy) is approximately given by the valence orbital energy of the core ionized state. As typical for double vacancies we encounter, in addition, an interesting singlet–triplet separation problem. Intensities for the production of the dicationic states by valence ionization out of a core ionized initial state are derived. The extent of valence hole localization in the dicationic states is analyzed by a two-hole population analysis. The analysis can be used to simulate the production of core-valence vacancies via Auger decay. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.472912
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  • 3
    Electronic Resource
    Electronic Resource
    Expression of calcium channel subunits in the normal and diseased human myocardium (1996)
    Springer
    Journal of molecular medicine 74 (1996), S. 99-104 
    Details
    ISSN: 1432-1440
    Keywords: L-type calcium channel ; β Subunit isoforms ; Human heart ; Cardiac hypertrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We investigated the expression of α1 and β subunits of the L-type Ca2+ channel on the protein level in cardiac preparations from normal human heart ventricles and from the hypertrophied septum of patients with hypertrophic obstructive cardiomyopathy (HOCM). 1,4-Dihydropyridine (DHP) binding and immunorecognition by polyclonal antibodies directed against the C-terminal amino acid sequences of the β2 and β3 subunits were used for detection and quantification of α1, β2, and β3 subunits. Bmax of high-affinity DHP binding was 35±2 fmol/mg protein in HOCM and 20±2 fmol/mg protein in normal human hearts (P〈0.05). In rabbit hearts the anti-β2 subunit antibody immunoprecipitated 80% of the total amount of DHP-labeled Ca2+ channels present in the assay. Under identical experimental conditions 25% of labeled Ca2+ channels were recovered in the immunoprecipitates of both normal and HOCM ventricles. A similar partial immunoprecipitation was observed in pig hearts. Immunoblot analysis demonstrated that the β2 subunit was associated with the DHP receptor/Ca2+ channel in cardiac muscle of rabbit, pig, and human heart. In neither of these purified cardiac Ca2+ channels was the β3 subunit isoform detected. Our results suggest that both α1 and β2 subunit expression is upregulated in HOCM in a coordinate manner.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00196785
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  • 4
    Electronic Resource
    Electronic Resource
    Das primäre Seminom (1995)
    Springer
    Langenbeck's archives of surgery 380 (1995), S. 149-153 
    Details
    ISSN: 1435-2451
    Keywords: Pure seminoma ; Mediastinal tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Wir berichten iiber 3 Patienten mit einem primdren reinen Seminom, welches im Mediastinum lokalisiert war. In allen Fdllen handelte es sich um einen Zufallsbefund, bei einem Patienten bestanden seit mehreren Jahren uncharakteristische thorakale Beschwerden. Präoperativ wurde einmal ein Seminom radiologischerseits in die Differentialdiagnose einbezogen, ansonsten erfolgte die Operation unter dem Verdacht auf ein Thymom. Als operativer Zugang wurde bei 2 Patienten eine mediane Sternotomie und einmal eine linksseitige anterolaterale Thorakotomie gewählt. Nach Eingang der Histologie wurde eine urologische Untersuchung der Hoden zum Ausschluß eines primären gonadalen Seminoms veranlaßt. Die beiden Patienten mit Chemotherapie sind nach 120 bzw. 8 Monaten (Polychemotherapie mit Cisplatin, Bleomycin und Velbe bzw. mit Cisplatin, Etoposid und Ifosfamid) und der Patient mit Radiatio nach 84 Monten tumorfrei.
    Notes: Abstract This is a report on three patients with primary mediastinal seminoma. Two patients had no symptoms, and one had had thoracic pain for the last few years. The preoperative diagnosis was thymoma in all cases, and in one patient the radiologist had suspected a seminoma. We removed the tumor after performing median sternotomy (n=2) and anterolateral left thoracotomy (n=1). The presence of a primary gonadal seminoma was excluded with a urological and ultrasound examination. All patients are still alive following adjuvant chemotherapy (n=2; 120 and 8 months) and radiotherapy (n=1; 84 months). Chemotherapy consisted of four cycles of cisplatin, etoposide and ifosfamide or combination therapy with cisplatin, bleomycin and velbe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00207720
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