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  • 1
    Electronic Resource
    Electronic Resource
    Studies on the biology of the periodontium of marmosets (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 7 (1972), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Four adult cotton top marmosets fed a purified high cholesterol-high fat diet developed a malabsorption induced osteomalacia which involved the periodontal bone. The alveolar bone changes were denoted histologically by a narrowing and disruption of the cortical and cribriform plates and by the presence of broad bands of osteoid around the remaining compact and spongy bone elements. Radiographically, the changes were represented by a partial to complete loss of the lamina dura and by a greatly increased patch radiolucency of the mandible and maxilla.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1972.tb01111.x
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  • 2
    Electronic Resource
    Electronic Resource
    Circadian changes in heart rate in unanesthetized normotensive and spontaneously hypertensive rats (1983)
    Springer
    Pflügers Archiv 397 (1983), S. 70-72 
    Details
    ISSN: 1432-2013
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Circadian changes in heart rate and heart rate variability were measured in spontaneously hypertensive (SHR) and normotensive (WKY) rats. Electrocardiograms (ECG) were continously recorded, over a 24 hour period from freely moving conscious rats via three small metallic subcutaneous electrodes which were positioned a week before the recording period. The findings reported here show: 1/ Mean heart rate calculated over 24 hours were lower in both strains than previously reported. This difference probably reflects the lack of anesthesia and minimal stress in the present study. 2/ The timing of the circadian variations in both strains were the same, suggesting that were both entrained to the light-dark cycle. 3/ The 24 hours mean heart rate variability was significantly higher in SHR than in WKY but in each strain it was similar throughout the 24 hours. This suggests that the vagal tone in SHR was higher by a fairly constant amount throughout the light-dark cycle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00585172
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  • 3
    Electronic Resource
    Electronic Resource
    Non-empirical interpretation of nitrogen 14 nuclear quadrupole coupling constants (1971)
    Springer
    Theoretical chemistry accounts 22 (1971), S. 111-129 
    Details
    ISSN: 1432-2234
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé Les constantes de couplage quadrupolaire nucléaire de 14N ont été calculées pour une série de composés azotés à partir de fonctions d'onde ab initio SCF-LCAO-MO (Hartree-Fock) construites sur une base de fonctions atomiques gaussiennes. Les diverses contributions nucléaires et électroniques (provenant des orbitales moléculaires, des atomes, des fonctions atomique de base) au gradient de champ total ont été analysées et reliées aux caractéristiques structurales des molécules considérées. L'effet de la nature de la base de fonctions atomiques sur la précision des gradients de champs calculés a aussi été étudié.
    Abstract: Zusammenfassung Die 14N-Kernquadrupol-Kopplungskonstanten sind für eine Reihe von N-haltigen Verbindungen aus ab initio-Wellenfunktionen, die auf Gauß-Orbitalen basieren, berechnet worden. Die einzelnen Kern- und Elektronenbeiträge zum Feldgradienten wurden untersucht und diskutiert, desgleichen der Einfluß des Typus der Basis auf die Genauigkeit der Resultate.
    Notes: Abstract The 14N nuclear quadrupolar coupling constants have been calculated for a series of nitrogen containing molecules from ab initio SCF-LCAO-MO wavefunctions built on basis sets of Gaussian type atomic functions. The various nuclear and electronic (from MO's, atoms, basis functions) contributions to the total field gradient have been analyzed and their relation to molecular and electronic structure is discussed. The effect of the nature of the basis set on the accuracy of the computed field gradients has also been studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00537620
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  • 4
    Electronic Resource
    Electronic Resource
    The electronic structure of N-methyl-3pyridone and its representation (1970)
    Springer
    Theoretical chemistry accounts 16 (1970), S. 316-318 
    Details
    ISSN: 1432-2234
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Quasi-localized MO's have been constructed for the π electron system of the three pyridone isomers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00529433
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  • 5
    Electronic Resource
    Electronic Resource
    Formaldéhyde: calcul de l'énergie dans l'état fondamental par une méthode de perturbation (1970)
    Springer
    Theoretical chemistry accounts 18 (1970), S. 193-207 
    Details
    ISSN: 1432-2234
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé L'énergie électronique du formaldéhyde a été calculée ab initio dans une base minimale d'orbitales atomiques de Slater par la méthode de perturbation au deuxième ordre. On a utilisé des orbitales moléculaires S.C.F. symétriques et localisées et des orbitales moléculaires de liaison non S.C.F. La valeur finale de l'énergie varie assez peu avec le point de départ. L'emploi d'orbitales localisées permet d'interpréter les différentes contributions et de sélectionner les plus grandes.
    Abstract: Zusammenfassung Eine ab-initio-Rechnung der Elektronenenergie des Formaldehyd wurde mit einer Störungsrechnung zweiter Ordnung durchgeführt, dabei wurde mit einer minimalen STO-Basis begonnen. Es wurden lokalisierte SCF-Symmetrieorbitale und nicht bindende nicht SCF-Orbitale benutzt. Die Gesamtenergie hÄngt nicht sehr stark von den Ausgangs-MO's ab. Lokalisierte Orbitale ermöglichen es, die grö\ten EnergiebeitrÄge der zweiten Ordnung zu erhalten und die verschiedenen Terme zu analysieren.
    Notes: Abstract An ab initio calculation of the formaldehyde electronic energy is carried out by a second-order perturbation method, starting with a minimum basis set of Slater type atomic orbitals. Symmetry-adapted and localized S.C.F. molecular orbitals and non-S.C.F. bond orbitals are used. The total energy does not depend very much on the starting molecular orbitals. Localized orbitals lead to find out the largest contributions to the second-order energy and to interpret the various terms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00527334
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  • 6
    Electronic Resource
    Electronic Resource
    Orbitales moléculaires S.C.F. localisées. Etude de barrières d'inversion (1970)
    Springer
    Theoretical chemistry accounts 18 (1970), S. 143-155 
    Details
    ISSN: 1432-2234
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé Les barrières d'inversion de l'azote dans l'aziridine, l'oxaziridine et la méthylène imine et la barrière d'inversion du carbanion dans l'anion vinyle ont été étudiées à l'aide d'orbitales moléculaires S.C.F. localisées. La variation des interactions entre orbitales localisées (liaisons, couches internes, doublets libres) lors de l'inversion permet de distinguer un effet « primaire » limité au site NH (ou CH⊖), et un effet « secondaire » provenant du reste de la molécule. Les deux facteurs interviennent dans la détermination de la barrière d'inversion; toutes les interactions deux à deux sont significatives. L'origine énergétique des barrières ne peut être localisée en un site donné (par ex. NH) mais est délocalisée sur toute la molécule.
    Abstract: Zusammenfassung Die Inversionsbarriere des Stickstoffs in Aziridin, Oxaziridin und Methylenimin sowie des Carbanions im Vinylanion wurde mit Hilfe lokalisierter SCF-MO's untersucht. Die Änderungen der Wechselwirkungen zwischen lokalisierten Orbitalen (Bindungen, inneren Schalen, einsamen Elektronenpaaren) im Verlauf der Inversion werden analysiert; dabei wird zwischen einem „primären” Effekt auf der Seite der NH- (oder CH⊖)-Gruppe und einem „sekundären“ Effekt auf seiten des Molekülrests unterschieden. Beide Faktoren spielen eine Rolle für die Höhe der Barriere. Alle paarweisen Wechselwirkungen sind signifikant. Der Energiebeitrag zur Barriere kann nicht auf einen bestimmten Molekülteil (z.B. NH) beschränkt werden, sondern ist auf das ganze Molekül verteilt.
    Notes: Abstract The nitrogen inversion barriers in aziridine, oxaziridine and methylenimine and the carbanion inversion barrier in the vinyl anion have been studied in terms of localized SCF molecular orbitals. The changes in the interactions between localized orbitals (bonds, inner shells, lone pairs) as inversion proceeds are analyzed by distinguishing a “primary” effect limited to the NH (or CH⊖) site, and a “secondary” effect arising from the remainder of the molecule. Both factors play a role in the determination of the barrier height. All pairwise interactions are significant. The energetical origin of the barriers cannot be localized at a given molecular site (e.g. NH) but is delocalized over the whole molecule.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00529133
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  • 7
    Electronic Resource
    Electronic Resource
    Study of relations between arterial oscillation period and heart rate (1981)
    Springer
    European journal of applied physiology 46 (1981), S. 387-395 
    Details
    ISSN: 1439-6327
    Keywords: Arterial dynamics ; Cardiac period ; Cardioarterial adaptation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study was performed to determine the relationship between variations of arterial cross-section and cardiac period. Relative section variations were recorded by impedance rheography. In 176 anesthetized adult mongrel dogs, aortic and femoral rheograms, femoral pressure, and ECG were recorded. The cardiac period (Tc) and the interval between the systolic and the dicrotic wave, i.e., the arterial intrinsic period (Ta), were measured and related to each other (Tc/Ta ratio). In 125 dogs, the dicrotic wave appeared spontaneously. In these cases Tc/Ta 1.98±0.16. In 51 dogs, no dicrotic wave appeared spontaneously. Lenghtening of cardiac period was obtained in 25 of these dogs by vagus stimulation. As related to the cardiac period before vagal stimulation Tc/Ta was then 0.98±0.08. In the remaining 26 dogs, such a lengthening was obtained by inducing a premature ventricular depolarization. In this group, Tc/Ta was 1.00±0.03. The results of the present study suggest that a constant adaptation exists between ventricular ejection and arterial dynamics. The physiologic implications are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00422126
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  • 8
    Electronic Resource
    Electronic Resource
    Hematology of common marmosets (Callithrix jacchus) (1982)
    Springer
    Primates 23 (1982), S. 145-150 
    Details
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The hematology of the common marmoset (Callithrix jacchus) was investigated to provide reference values for the normal animal. Red blood cell counts, white blood cell counts, hemoglobins, mean cell volumes and differential white blood cell mean values were determined for Texas A&M colony-born animals and those obtained from the wild. The analyses were completed on 31 animals, three times each, for a total of 93 analyses, which included 16 colony-born and 15 wild-born marmosets. The hematological mean values found for marmosets were similar to those mean values reported for humans. The ranges for the hematology values were much narrower in the colony-born marmosets, and the average white blood cell count was significantly lower in these animals. This indicated that it is possible to produce and maintain a more uniform animal in the colony environment and, consequently, these animals are more suitable than wild-born animals for use as models for human research.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02381447
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  • 9
    Electronic Resource
    Electronic Resource
    Molecular MC-SCF calculations (1970)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 4 (1970), S. 297-313 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A practical method for finding multi-configurational SCF wave functions is proposed. The basic equation is equivalent to the Brillouin theorem; comparison with the usual SCF equations obtained through effective hamiltonians gives an interpretation of the offdiagonal Lagrange multipliers. Numerical applications to Formaldehyde in a minimum Slater-type orbital basis with four different variational wave functions are reported. The molecular orbitals found in these calculations are localized on the chemical bonds. The largest contributions to the energy are obtained from π-π and dispersion-type σ-π correlation.
    Additional Material: 7 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560040307
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  • 10
    Electronic Resource
    Electronic Resource
    Perturbation calculation of transition moments in the ArH+ system (1980)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 18 (1980), S. 49-55 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The matrix elements of the transition dipolar momentum IR have been computed between the low-lying states associated to the Lyman-α transition. The orthogonalization of the involved electronic states (obtained by the CIPSI method) has been performed and led to a better value for the asymptotic behavior of the {Ar(3p5, 4s) + H+} configuration. Position of the satellites in the red and blue wing of the line are deduced from the potential-energy curves in the frame of the quasistatic theory.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560180110
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