Cerebral autoregulation of preterm neonates--a non-linear control system?
نویسندگان
چکیده
منابع مشابه
Cerebral autoregulation of preterm neonates--a non-linear control system?
The low frequency cerebral blood flow velocity (CBFV) oscillations in neonates are commonly attributed to an under-dampened immature linear type cerebral autoregulation, and the 'instability' is regarded as causative for peri-intraventricular haemorrhage/periventricular leukomalacia. In contrast, oscillations susceptible to frequency entrainment are a fundamental part of the stable function of ...
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We present a numerical study of a one-dimensional version of the Burridge-Knopoff model [16] of N-site chain of spring-blocks with stick-slip dynamics. Our numerical analysis and computer simulations lead to a set of different results corresponding to different boundary conditions. It is shown that we can convert a chaotic behaviour system to a highly ordered and periodic behaviour by making on...
متن کاملcontrol of chaos in a driven non linear dynamical system
we present a numerical study of a one-dimensional version of the burridge-knopoff model [16] of n-site chain of spring-blocks with stick-slip dynamics. our numerical analysis and computer simulations lead to a set of different results corresponding to different boundary conditions. it is shown that we can convert a chaotic behaviour system to a highly ordered and periodic behaviour by making on...
متن کاملCerebral Intraventricular Hemorrhage and Interleukin-6 in Preterm Neonates
Background: Intraventricular hemorrhage (IVH) in preterm neonates is a serious problem in neonatal intensive care units (NICU) worldwide. IVH is reported in approximately 60-70% of very-low-birth-weight (VLBW) neonates. The present study aimed to assess the association of IVH with neonatal characteristics and serum markers, such as serum Interleukin-6 (IL-6) level, in preterm neonates in an aca...
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ژورنال
عنوان ژورنال: Archives of Disease in Childhood - Fetal and Neonatal Edition
سال: 1994
ISSN: 1359-2998,1468-2052
DOI: 10.1136/fn.70.3.f166