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  • Lactate threshold  (1)
  • PACS. 36.40.Ei Phase transitions in clusters- 82.30.Qt Isomerization and rearrangement- 05.20.Gg Classical ensemble theory  (1)
  • PACS: 36.40.Mr Spectroscopy and geometrical structure of clusters  (1)
  • Upper abdomen  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Intraoperative radiotherapy of upper abdominal tumours (1992)
    Springer
    European radiology 2 (1992), S. 29-34 
    Details
    ISSN: 1432-1084
    Keywords: Intraoperative radiotherapy ; Upper abdomen ; Cancer surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00714178
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Anaerobic threshold in children: determination from saliva analysis in field tests (1995)
    Springer
    European journal of applied physiology 70 (1995), S. 541-544 
    Details
    ISSN: 1439-6327
    Keywords: Exercise ; Children ; Physiological evaluation ; Lactate threshold
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this study was to determine the anaerobic threshold of children by the analysis of saliva collected during field tests. A group of 25 children (mean age, 10.5 years) performed an incremental exercise test on a track, consisting of 4-min stages at increasing running velocities. Before each test (at rest) and at the end of each stage, both blood (via finger pricks) and saliva samples (for measurement of salivary concentrations of Na+ and Cl−) were collected to determine lactate threshold (Th1a-) and saliva threshold (Thsa), respectively. There were no significant differences between values of Th1a- and Thsa when expressed either as running velocity [mean Th1a-, 10.73 (SD 1.96) km · h−1; mean Thsa, 10.89 (SD 1.69) km · h−1] or heart rate [Th1a-, 182(SD 14) beats · min−1 Thsa 183 (SD 11) beats · min−1]. In addition, correlations between Thsa and Th1a were high, when both values were expressed as running velocity in kilometres per hour (r = 0.89;P 〈 0.001), or heart rate in beats per minute (r = 0.90;P 〈 0.001). In conclusion, these findings suggested that saliva analysis would be a valid method for anaerobic threshold determination in field tests.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00634384
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Monte-Carlo simulations of rotating clusters (1998)
    Springer
    The European physical journal 3 (1998), S. 229-236 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 36.40.Ei Phase transitions in clusters- 82.30.Qt Isomerization and rearrangement- 05.20.Gg Classical ensemble theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: 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 .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050170
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  • 4
    Electronic Resource
    Electronic Resource
    Structure of nitrogen molecular clusters (N2)n with 13≤n≤55 (1999)
    Springer
    The European physical journal 9 (1999), S. 189-193 
    Details
    ISSN: 1434-6079
    Keywords: PACS: 36.40.Mr Spectroscopy and geometrical structure of clusters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We investigate the structural properties of nitrogen molecular clusters (N2) n using classical Monte Carlo simulations and optimization methods. As is the case for argon clusters, we find polyicosahedral (anti-Mackay) geometries above 13 molecules, and multilayer icosahedra with uncomplete outer shell (Mackay) geometries below 55 molecules. The crossover point between these two kinds of structures is located near 42 molecules, whereas it is at only 31 for argon. With a simple three-body (Axilrod–Teller) potential added to the standard Lennard–Jones model, we interpret this difference as the result of the strong anisotropy of the molecular potential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050424
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