Passive Radar Sensing for Human Activity Recognition: A Survey.

Continuous and unobtrusive monitoring of daily human activities in homes can potentially improve the quality of life and prolong independent living for the elderly and people with chronic diseases by recognizing normal daily activities and detecting gradual changes in their conditions. However, existing human activity recognition (HAR) solutions employ wearable and video-based sensors, which either require dedicated devices to be carried by the user or raise privacy concerns. Radar sensors enable non-intrusive long-term monitoring, while they can exploit existing communication systems, e.

Agent-Supported Peer Collaboration in MOOCs.

While massive open online courses (MOOCs) can be effective in scaling education, orchestrating collaborative learning activities for large audiences remains a non-trivial task that introduces a series of practical challenges, such as the lack of adequate human support. Even when collaboration takes place, there is uncertainty whether meaningful interactions will occur among learners. This work presents the architecture of a prototype system called PeerTalk.

Hybrid circumferential fixation for degenerative lumbosacral spine disease: posterior lumbar interbody fusion plus universal clamp rod-band instrumentation: a novel technique for lumbosacral fixation.

Study Design: Retrospective study on circumferential hybrid instrumentation with posterior lumbar interbody fusion (PLIF) and the novel posterior Universal Clamp (UC) instrumentation.

Objective: This study evaluated the roentgenographic and clinical outcome after PLIF with PEEK cage augmented with UC posterior sublaminar fixation without posterior fusion.

Summary Of Background Data: Although UC has been successfully used in scoliosis surgery, to our knowledge, this is the first report on its use in degenerative lumbosacral disease.

Primary malignant schwannoma involving simultaneously the right Gasserian ganglion and the distal part of the right mandibular nerve. Case report.

A 66-year-old man presented to our Department with trigeminal neuralgia of the third division of the right trigeminal nerve. He also complained of some difficulty in mastication because of a tumour mass in the right lower jaw. A brain CT scan, X-rays of the lower jaw and viscerocranium CT scan revealed a malignant schwannoma of the right Gasserian ganglion involving simultaneously the distal end of the right mandibular nerve.

Results of anterior discectomy without fusion for treatment of cervical radiculopathy and myelopathy.

In this retrospective study 180 patients were submitted to anterior discectomy without fusion for cervical radiculopathy and myelopathy. Ninety-five patients presented with single-level discopathy, the main symptom being radiculopathy in this group. Eighty-five patients presented with multiple-level discopathy, the main symptom being myelopathy instead of radiculopathy.