738 research outputs found
Passive radar based on WiFi transmissions: signal processing schemes and experimental results
Aim of this work is to study innovative techniques and processing strategies for a new passive sensor for short range surveillance. The principle of work of the sensor will be based on the passive radar principle, and WiFi transmissions - which usually provide Internet access within local areas - will be exploited by the passive
sensor to detect, localize and classify targets
Passive radar based on WiFi transmissions: signal processing schemes and experimental results
Aim of this work is to study innovative techniques and processing strategies for a new passive sensor for short range surveillance. The principle of work of the sensor will be based on the passive radar principle, and WiFi transmissions - which usually provide Internet access within local areas - will be exploited by the passive
sensor to detect, localize and classify targets
Anti epidermal growth factor receptor therapy in small bowel adenocarcinoma
Rationale:Small bowel adenocarcinoma (SBA) is an uncommon gastrointestinal cancer, thus limited data about treatment for advanced disease are available. The lack of specific guidelines has justified the use of therapeutic protocols usually applied in advanced colorectal cancer. Few and preliminary data have suggested possible clinical benefit from the use of target therapy such as bevacizumab and cetuximab.Patient concerns:We present the case of a young woman who was admitted to the emergency department for acute abdominal pain, nausea, and vomiting related to a jejunal stenosis.Diagnoses:An enteroscopy with jejunal biopsy showed poorly differentiated cancerous cells suggestive for primary intestinal cancer. There were no signs of metastatic disease at radiological evaluation. A jejunal resection was subsequently carried out and the diagnosis of mucinous adenocarcinoma of the jejunum was confirmed.Interventions:The computed tomography scan performed 1 month after surgery showed metastatic disease. Therefore, the patient received combined protocols of chemotherapy and either bevacizumab or the anti-epidermal growth factor receptor (EGFR) panitumumab.Outcomes:A partial response (PR) was achieved with Folfox plus panitumumab and a maintenance therapy with panitumumab is being conducted with a mild toxicity and a progression free survival of 19 months since the beginning of panitumumab.Lessons:This is, to the best of our knowledge, the first report in the literature of a patient with SBA who has benefitted from panitumumab with an overall survival of 83 months
Flux tubes in the SU(3) vacuum
We analyze the distribution of the chromoelectric field generated by a static
quark-antiquark pair in the SU(3) vacuum. We find that the transverse profile
of the flux tube resembles the dual version of the Abrikosov vortex field
distribution and give an estimate of the London penetration length in the
confined vacuum.Comment: 7 pages, 3 figures, poster contribution to the XXIX International
Symposium on Lattice Field Theory, LATTICE 201
Low speed maneuvering assistance for long vehicle combinations
This paper considers a low speed maneuvering problem for long articulated vehicle combinations. High precision maneuvering is achieved by designing a model-based state feedback optimal control method, commanding the steering of the first unit and a moveable coupling point between the first unit and the trailer. Simulation results are presented for a tight 90 degree turn, involving both forward and backward motions
Decision Modeling in Markovian Multi-Agent Systems
In this paper, we model a decision-making process involving a set of interacting agents. We use Markovian opinion dynamics, where each agent switches between decisions according to a continuous time Markov chain. Existing opinion dynamics models are extended by introducing attractive and repulsive forces that act within and between groups of agents, respectively. Such an extension enables the resemblance of behaviours emerging in networks where agents make decisions that depend both on their own preferences and the decisions of specific groups of surrounding agents. The considered modeling problem and the contributions in this paper are inspired by the interaction among road users (RUs) at traffic junctions, where each RU has to decide whether to go or to yield
Collective Decision Making using Attractive and Repulsive Forces in Markovian Opinion Dynamics
In this paper, we model a decision-making process involving a set of interacting agents. We use Markovian opinion dynamics, where each agent switches between decisions according to a continuous time Markov chain. Existing opinion dynamics models are extended by introducing attractive and repulsive forces that act within and between groups of agents, respectively. Such an extension enables the resemblance of behaviours emerging in networks where agents make decisions that depend both on their own preferences and the decisions of specific groups of surrounding agents. The considered modeling problem and the contributions in this paper are inspired by the interaction among road users (RUs) at traffic junctions, where each RU has to decide whether to go or to yield
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