Ioannis Koutroulis

Learn More
In this paper, we combine inertial sensing and sensor network technology to create a pedestrian dead reckoning system. The core of the system is a lightweight sensor-and-wireless-embedded device called NavMote that is carried by a pedestrian. The NavMote gathers information about pedestrian motion from an integrated magnetic compass and accelerometers. When(More)
In this paper the development and experimental verification of mobile client-centric networked controlled system is presented. The feedback control loop is closed over a General Purpose Radio Service (GPRS) communication channel, between the plant and the controller. The inserted delays from the communication network, are time-varying, degrade the system(More)
BACKGROUND Neuroblastoma (NB) often presents with metastatic disease and poor survival. The need for new prognostic markers remains invaluable. The FAK-Src-Paxillin protein system is associated with aggressive phenotype in adult malignancies but is largely unexplored in pediatric NB. OBJECTIVE To assess FAK-Src-Paxillin protein expression in human NB cell(More)
BACKGROUND Hypoxia-ischemia (HI) results in increased activation of Ca2+/calmodulin kinase IV (CaM kinase IV) mediated by Src kinase. Therapeutic hypothermia ameliorates neuronal injury in the newborn. HYPOTHESIS Inhibition of Src kinase concurrently with hypothermia further attenuates the hypoxia-induced increased activation of CaM kinase IV compared(More)
The ability to track the position of the user is an essential part of many applications [7, 4, 2]. It is well known that Global Positioning System (GPS) is limited as a navigation aid by its inability to provide static heading and its lack of availability when used around obstructions (terrain or man-made) or in the presence of jamming. Therefore, it is(More)
A previously healthy, white 12-year-old girl presented with diffuse body aches and poor perfusion. She developed severe respiratory failure and marked rhabdomyolysis and was mechanically ventilated. Although her CPK peaked at 500,000 IU/L, her renal function was mildly affected and her creatinine did not exceed the 0.8 mg/dL. The rhabdomyolysis was(More)
A previously healthy, white 8-year-old girl presented with a 1-week history of abdominal pain and vomiting after a trip to a lake in Pennsylvania, north-eastern USA. There was marked dehydration. A raised blood eosinophilic count prompted microscopy for ova and parasites which demonstrated a heavy load of larvae of Strongyloides stercoralis. Charcot-Leyden(More)
Atopic dermatitis (AD) is the most common pregnancy dermatosis. This evidence-based review article provides an evaluation of AD in gestation. Our literature search revealed 4 epidemiologic studies on AD in pregnancy, and a total of 55 articles that provide the basis for this review. The limitations of epidemiologic studies included herein are critically(More)
We have previously shown that cerebral Hypoxia-ischemia (HI) results in activation of Src kinase in the newborn piglet brain. We investigated the regulatory mechanism by which the pre-apoptotic proteins translocate from mitochondria to the cytosol during HI through the Src kinase. Newborn piglets were divided into 3 groups (n = 5/group): normoxic (Nx), HI(More)
OBJECTIVES Our study aimed to compare overweight and healthy-weight pediatric trauma patient outcomes, specifically with respect to hospital length of stay and resource utilization. We hypothesized that overweight pediatric trauma patients would have increased hospital length of stay and radiographic study use compared with their healthy-weight(More)