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  • Electronic Resource  (4)
  • pyramidal tract  (2)
  • 68E10  (1)
  • Centroblastic-centrocytic lymphoma  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Fcfs-scheduling in a hard real-time environment under rush-hour conditions (1992)
    Springer
    BIT 32 (1992), S. 370-383 
    Details
    ISSN: 1572-9125
    Keywords: 05A15 ; 05C05 ; 68C15 ; 68E10 ; real-time behaviour ; FCFS scheduling ; trees ; probability ; generating functions ; singularity analysis ; asymptotics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We investigate some real-time behaviour of a (discrete time) single server system with FCFS (first come first serve) task scheduling under rush-hour conditions. The main result deals with the probability distribution of a random variable SRD(T), which describes the time the system operates without violating a fixed task service time deadlineT. Relying on a simple general probability model, asymptotic formulas concerning the mean and the variance of SRD(T) are determined; for instance, if the average arrival rate is larger than the departure rate, the expectation of SRD(T) is proved to fulfilE[SRD(T)]=c 1+O(T −3) forT→∞, wherec 1 denotes some constant. If the arrival rate equals the departure rate, we findE[SRD(T)]∼c 2 T i for somei≥2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02074875
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  • 2
    Electronic Resource
    Electronic Resource
    Safe surgery of lesions near the motor cortex using intra-operative mapping techniques: a report on 50 patients (1992)
    Springer
    Acta neurochirurgica 119 (1992), S. 23-28 
    Details
    ISSN: 0942-0940
    Keywords: Brain lesions ; mapping ; motor cortex ; pyramidal tract ; somatosensory evoked potentials
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In 50 patients lesions located in or adjacent to the motor strip were microsurgically removed with the help of intra-operative electrophysiological mapping of the sensorimotor cortex. Mapping consisted of cortical stimulation and/or recording of somatosensory evoked potentials. Depending on the patient's pre-operative neurological status, surprisingly good results could be achieved: The surgery resulted in increased permanent sensorimotor deficit in only 4% of cases and in improved neurological status in 30% of cases. It is concluded that surgical removal of centrally located lesions using a microsurgical technique and intra-operative mapping of the motor cortex is safe and permits extensive or radical resection of lesions, even those in the motor cortex itself.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01541777
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Tumour-surgery within the central motor strip: Surgical results with the aid of electrical motor cortex stimulation (1989)
    Springer
    Acta neurochirurgica 101 (1989), S. 100-107 
    Details
    ISSN: 0942-0940
    Keywords: Brain tumour surgery ; precentral gyrus ; pyramidal tract ; cortical motor stimulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Surgery of tumours within or close to the central motor area always carries the risk of a new or increased postoperative motor deficit. One reason may be the difficulty of localizing the sensorimotor region, when it is displaced or distorted by the tumour and the perifocal oedema. Recently anatomical data of the craniocerebral topography of the central sulcus6, 9, 15 became available. We safely used under general anaesthesia the intraoperative mapping of the motor cortex by direct cortical electrical stimulation. In 21 patients tumours adjacent to or within the motor area were microsurgically resected. As a result of intraoperative localization the surgical approach had to be modified in contrast to the preoperative localization of the lesion in 5 patients. No new or increased motor deficit occurred and in some cases the preoperative weakness was reduced remarkably.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01410522
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Follicular malignant non-Hodgkin's lymphoma with pronounced plasmacytic differentiation: A plasmacytoma-like lymphoma (1985)
    Springer
    Virchows Archiv 405 (1985), S. 473-481 
    Details
    ISSN: 1432-2307
    Keywords: Follicular non-Hodgkin's lymphoma ; Centroblastic-centrocytic lymphoma ; Non-Hodgkin's lymphoma with plasmacytic component ; Plasma cell differentiation ; Extramedullary plasmacytoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of follicular centroblastic-centrocytic lymphoma with an unusually pronounced plasmacytic component occurring in the gingiva and cervical lymph nodes of a 74-year-old male patient is described. Immunohistological analysis revealed a monotypic intracytoplasmic immunoglobulin pattern (IgM/λ). The relation between follicular malignant non-Hodgkin's lymphomas and extramedullary plasmacytome is discussed. In the present case the tumour may represent the development of an autonomous plasma cell clone within a follicular centroblastic-centrocytic lymphoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00737173
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    Paper (German National Licenses)
    Fulltext
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