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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 111 (1999), S. 5873-5881 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We report the results of an ab initio calculation, using analytic techniques, of nonadiabatic couplings for H3 between the degenerate 2E′ ground state and the 2s(2A1′), 3s(2A1′) and 3p(2E′) Rydberg states. The calculations employed extensive correlated wave functions that accurately reproduced the energy levels of these states. We have used these couplings as input to a two-dimensional wave packet calculation of dissociation dynamics in order to predict the predissociation lifetimes and final state vibrational distributions produced by the predissociation. A significant isotope effect is found in the final vibrational distributions produced from H3 and D3 predissociation. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: PACS:21.10.Re Collective levels – 27.60+j 90 ≤ A ≤ 149
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Excited states of the nucleus ν123Xe have been investigated with the fusion–evaporation-reaction ν110Pd(ν18O,5n)ν123Xe at 86 MeV beam energy, using the compton-suppressed Nordball-multidetector-system at the Niels-Bohr-Institute in Risø, Denmark. The level scheme of ν123Xe was extended up to a level of tentative 53/2+ħ. Four excited bands of 3-quasiparticle-character were observed. Analyzing the directional correlation information, we could assign spin- and parity-values to all observed bands in ν123Xe. The observed band structures fit well into systematics of the neighboring nuclei ν125Xe and ν127Xe.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International journal of colorectal disease 11 (1996), S. 299-302 
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé. Cette étude expérimentale a pour but de déterminer l'utilité d'une technique d'anastomose totalement laparoscopique du côlon avec l'aide de l'anneau d'anastomose biofragmentable Valtrac et avec l'emploi d'un nouvel applicateur. Après résection colique intra-corporelle fermée avec l'agrafeuse linéaire et après mise en place de bourses, l'extrémité proximale et distale du còlon est ré-ouverte pour permettre la mise en place de l'anneau de Valtrac permettrant de compléter l'anastomose intra-corporelle. Cette technique a été testée chez 8 cochons. Six animaux n'ont développé aucune complication per- ou postopératoire alors que deux cochons ont développé une péritonite fatale suite à une insuffisance de l'anastomose chez l'un des animaux et une sténose anastomotique par déplacement de l'anneau de Valtrac. Les résultats de cette étude montrent que la manipulation de l'anneau anastomotique biofragmentable est facilitée par l'usage du nouvel applicateur. Dans les cas non compliqués, l'endoscopie et l'histologie ont montré une guérison per primam avec peu de sclérose et aucune de sténose anastomotique.
    Notes: Abstract. This experimental study examines the usefulness of a totally laparoscopic anastomotic technique in the colon with the aid of the biofragmentable anastomotic Valtrac ring and a newly developed applicator device. Following closed intracorporeal colonic resection with the linear stapler and subsequent re-opening of the proximal and distal bowel ends after placement of a pursestring suture, intracorporeal anastomosis was completed with the Valtrac ring. The technique was tested in 8 pigs. 6 pigs had no intra- or postoperative complications, while 2 pigs developed fatal peritonitis following anastomotic insufficiency in one pig and anastomotic stenosis caused by tilting of the Valtrac ring in the other animal. The results of the study show that handling of the biofragmentable anastomotic ring is facilitated by the use of the new application system. In the uncomplicated case, endoscopy and histology revealed bland healing with little scarring, and no evidence of an anastomotic stenosis.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Applied microbiology and biotechnology 42 (1995), S. 945-950 
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  The uptake of phenoxyacetic acid by two different strains of Penicillium chrysogenum was studied. Phenoxyacetic acid (POA) was taken up by P. chrysogenum in a defined medium. Plots of initial velocity of POA uptake versus external substrate concentration, in the range 2–5000 μM, gave linear plots. Uptake of POA by induced and uninduced cells was identical. The initial velocity of POA uptake decreased as the pH of the suspension was increased from 5.4 to 7.2; the decrease closely paralleled the decline in the non-ionic form of the acid over this pH range. The initial velocity of POA uptake was not affected by the presence of phenylacetic acid. POA uptake proceeded until the cellular concentration was equal to the external concentration. It is concluded that POA is passively transported into P. chrysogenum by unmediated diffusion.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Applied microbiology and biotechnology 42 (1995), S. 945-950 
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The uptake of phenoxyacetic acid by two different strains of Penicillium chrysogenum was studied. Phenoxyacetic acid (POA) was taken up by P. chrysogenum in a defined medium. Plots of initial velocity of POA uptake versus external substrate concentration, in the range 2–5000 μM, gave linear plots. Uptake of POA by induced and uninduced cells was identical. The initial velocity of POA uptake decreased as the pH of the suspension was increased from 5.4 to 7.2; the decrease closely paralleled the decline in the non-ionic form of the acid over this pH range. The initial velocity of POA uptake was not affected by the presence of phenylacetic acid. POA uptake proceeded until the cellular concentration was equal to the external concentration. It is concluded that POA is passively transported into P. chrysogenum by unmediated diffusion.
    Type of Medium: Electronic Resource
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