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  • 1
    Electronic Resource
    Electronic Resource
    Hierarchy of symmetry conservation rules governing chemical reaction systems (1974)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 96 (1974), S. 5959-5967 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00826a001
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  • 2
    Electronic Resource
    Electronic Resource
    Valence-bond approach to conservation of symmetry in concerted reactions (1975)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 97 (1975), S. 2645-2654 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00843a010
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  • 3
    Electronic Resource
    Electronic Resource
    Nondegenerate many-body theory and the treatment of conservation principles (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 5847-5849 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Projection operators are used to formulate Lipkin's modified Hamiltonian. By projecting from independent quasiparticle states, a convenient general nondegenerate many-body perturbation theory is generated. A unique feature is that the final results satisfy conservation principles. Practical consequences include ordinary diagrammatic expansions and equations-of-motion for treatments of alternant molecular orbital wave functions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451546
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  • 4
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    Risk Factor Knowledge, Status, and Change in a Community Screening Project (1989)
    New York, N.Y. : Periodicals Archive Online (PAO)
    Journal of community health. 14:3 (1989:Fall) 137 
    Details
    ISSN: 0094-5145
    Topics: Medicine
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:q628-1989-014-03-000002
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  • 5
    Electronic Resource
    Electronic Resource
    Neuronal plasticity and recovery of function in a polyclad flatworm (1975)
    [s.l.] : Nature Publishing Group
    Nature 256 (1975), S. 737-738 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] If a cut is made from the midline to the margin right through the entire body, that portion of the animal ipsilateral to and posterior to the cut will act as if it is decerebrate. The contrala-teral side, however, will still turn and with distension of the stomach this side will ignore offered ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/256737a0
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  • 6
    Electronic Resource
    Electronic Resource
    Lethal injection, autonomy and the proper ends of medicine (2003)
    Oxford, UK and Boston, USA : Blackwell Publishing Ltd.
    Bioethics 17 (2003), S. 0 
    Details
    ISSN: 1467-8519
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Philosophy
    Notes: Gerald Dworkin has argued that it is inconsistent with the proper ends of medicine for a physician to participate in an execution by lethal injection. He does this by proposing a principle by which we are to judge whether an action is consistent with the proper ends of medicine. I argue: (a) that this principle, if valid, does not show that it is inconsistent with the proper ends of medicine for a physician to participate in an execution by lethal injection; and (b) that this principle is not valid, and this is because it mistakenly views the promotion of patient autonomy as one of the proper ends of medicine. Rather, I propose, we should view respect for a patient's autonomy as a constraint on the pursuit of the proper ends of medicine, rather than as one of the proper ends itself. With this revised understanding of the proper ends of medicine, we can conclude that it is inconsistent with the proper ends of medicine for a physician to participate in an execution by lethal injection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1467-8519.00333
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  • 7
    Electronic Resource
    Electronic Resource
    Pathologic findings at the time of nephrectomy for renal mass (1997)
    Springer
    Annals of surgical oncology 4 (1997), S. 570-574 
    Details
    ISSN: 1534-4681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Ultrasound (US) and computed tomography (CT) have improved the diagnosis of solid renal masses. Nevertheless, some patients still undergo exploration for a presumptive diagnosis of renal cell carcinoma (RCC) and are found to have other pathology. We report a contemporary series of non-RCC renal masses (both incidental and symptomatic) among nephrectomies performed for suspected RCC. Materials and Methods: All nephrectomies performed by the Urology Service at the Memorial Sloan-Kettering Cancer Center from July of 1989 through July of 1996 for a parenchymal renal mass were reviewed, and patients without a final diagnosis of RCC were identified. Cases were excluded if RCC was not suspected preoperatively. Presentation, preoperative radiographic evaluation, type of operation, and pathologic features were assessed. Results: Of the 636 nephrectomies performed, 108 patients (16.9%) had a diagnosis other than RCC. Conclusions: Of patients undergoing nephrectomy for renal masses, 16.9% have other pathologic diagnoses. Sixty-six percent of these non-RCC masses are discovered incidentally, and the majority are treated with radical nephrectomy. Preoperative radiographic evaluation reflects both clinical presentation, with IVP used to evaluate symptomatic tumors, and diagnostic uncertainty, with multiple modalities used to evaluate cystic lesions. This information has important implications for preoperative counseling and surgical planning.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02305538
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  • 8
    Electronic Resource
    Electronic Resource
    Quantum field theoretical methods in chemically bonded systems II (1992)
    Springer
    Theoretical chemistry accounts 84 (1992), S. 1-19 
    Details
    ISSN: 1432-2234
    Keywords: 31.10.+z ; 71.10.+x ; 31.15.+q ; Perturbation theory ; Quasiparticles ; Feynman diagrams
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Many-body perturbation theory is derived for chemical bonds. Paired quasiparticles represent the bonds. Products of the paired quasiparticles define a model Bardeen-Cooper-Schrieffer function. The pairing force is added as a model interaction to the self-consistent problem. The starting model is based on valency and adiabatic symmetry correlation. Symmetries are enforced by the model Hamiltonian. Perturbative corrections are expressed as ordinary Feynman diagrams. The number of diagrams needed is the same as for particle-hole theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01117400
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  • 9
    Electronic Resource
    Electronic Resource
    Quantum field theoretical methods in chemically bonded systems IV (1992)
    Springer
    Theoretical chemistry accounts 84 (1992), S. 37-53 
    Details
    ISSN: 1432-2234
    Keywords: Perturbative methods ; Perturbative analysis curves ; H2 ; LiH ; FH ; F2 ; Single bonds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A new perturbative procedure is analyzed numerically for four single bonded diatomic molecules. The starting model is the second-quantized self-consistent Heitler-London model. The unperturbed function is a four-determinant Bardeen-Cooper-Schrieffer function. The model Hamiltonian is the ordinary Hamiltonian plus linear and quadratic powers of a two-level number operator. Parameters which multiply the additional terms are chosen to enforce particle-number symmetry. Convergence of the perturbative series for the energy as a function of internuclear distance is reasonable: third-order corrections are about an order of magnitude smaller than second-order corrections; total corrections through third order are about two orders of magnitude smaller than first-order energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01117402
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  • 10
    Electronic Resource
    Electronic Resource
    Quantum field theoretical methods in chemically bonded systems III (1992)
    Springer
    Theoretical chemistry accounts 84 (1992), S. 21-35 
    Details
    ISSN: 1432-2234
    Keywords: 31.10.+z ; 71.10.+x ; 31.15.+q ; Perturbative methods ; Potential energy curves ; H2 ; LiH ; FH ; F2 ; Single bonds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A new perturbative method is applied to single bonds. The starting model is the second-quantized self-consistent Heitler-London model. The unperturbed function is a four-determinant Bardeen-Cooper-Schrieffer function. Perturbative corrections are computed with renormalized Feynman diagrams. Convergence is satisfactory by third order. Calculated (experimental) dissociation energies in eV are 4.61 (4.75) for H2, 2.37 (2.52) for LiH, 6.22 (6.13) for FH, and 1.88 (1.66) for F2. Calculated (experimental) equilibrium bond distances in Å are 0.739 (0.741) for H2, 1.598 (1.596) for LiH, 0.903 (0.917) for FH, and 1.395 (1.412) for F2. Calculated (experimental) vibrational frequencies in cm−1 are 4578 (4401) for H2, 1396 (1406) for LiH, 4447 (4138) for FH, and 927 (916) for F2. Other spectroscopic constants agree with experiment to within 11% except for anharmonicities which differ from experiment by up to 20%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01117401
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