112,675 research outputs found
Codice di Pratica per la sicurezza e la conservazione degli insediamenti storici dell’area grecanica
No full textNeuronavigation and intraoperative imaging system in orbital tumor surgery: a review of recent literature
No full textorbit is a small complex anatomic space that contains important structures, ocular globe, extrinsic muscles, cranial nerves, blood vessels, fat, lacrimal gland. In presence of orbital tumors it is mandatory to use a surgical approach that allows to achieve an adequate surgical field while preserving neurological function. neuronavigation is the set of computer-assisted technologies used to guide or "navigate” the edges of the tumor to allow the surgeon during resection or biopsy. this technology started with use of CT data to get some landmarks of human anatomy defined “targets” that could be readily used in surgery. finally, the evolution of modern neuroimaging technologies such intraoperative CT and MRI boosted the surgery accuracy. In order to identify advantages and practical use of these technologies we performed a nonsystematic review of the current literature using the keywords “orbital tumor or orbital neoplasia or orbital mass or orbital lesion” and “neuronavigation or navigation” published in last 10 years. we evaluated 29 papers and we can conclude that navigation in orbital surgery helps to reduce surgical damage while at the same time, allowing a more radical tumor resection. CT and MRI scans are complementary in diagnosing and in intraoperative navigation allow the surgeon to avoid and preserve vital structures, particularly in a complex surgical procedure without real anatomical landmarks for intraoperative orientation. Future is going towards rapid changes and the integration with intraoperative procedures is carrying on to new technologies further our contemporary bounds
Neuronavigation and intraoperative imaging system in orbital tumor surgery: a review of recent literature
No full textOrbit is a small complex anatomic space that contains important structures, ocular globe, extrinsic muscles, cranial nerves, blood vessels, fat, lacrimal gland. In presence of orbital tumors it is mandatory to use a surgical approach that allows to achieve an adequate surgical field while preserving neurological function. Neuronavigation is the set of computer-assisted technologies used to guide or "navigate” the edges of the tumor to allow the surgeon during resection or biopsy. This technology started with use of CT data to get some landmarks of human anatomy defined “targets” that could be readily used in surgery. Finally, the evolution of modern neuroimaging technologies such intraoperative CT and MRI boosted the surgery accuracy. In order to identify advantages and practical use of these technologies we performed a nonsystematic review of the current literature using the keywords “orbital tumor or orbital neoplasia or orbital mass or orbital lesion” and “neuronavigation or navigation” published in last 10 years. We evaluated 29 papers and we can conclude that navigation in orbital surgery helps to reduce surgical damage while at the same time, allowing a more radical tumor resection. CT and MRI scans are complementary in diagnosing and in intraoperative navigation allow the surgeon to avoid and preserve vital structures, particularly in a complex surgical procedure without real anatomical landmarks for intraoperative orientation. Future is going towards rapid changes and the integration with intraoperative procedures is carrying on to new technologies further our contemporary bounds
Traffic analysis and solutions
No full textUrban mobility offers a unique opportunity to ensure development and radical improvement to the quality of urban life in the Multan City center. The traditional approach to transport planning usually aims only at solving technical issues, finding the solutions within its own discipline. On the contrary, we believe that transport planning is an integrated discipline within town planning and aims to promote an approach based on a reasonable and documented assumption. The scientific method aims to quantify the phenomena through the formulation of a hypothesis and the development of forecast scenarios. The rapid increase in individual income leads to a physiological increase in the use of private vehicle: to curb this phenomenon it is necessary to develop an adequate, effective, modern, and high-quality public transport network and to limit the uncontrolled growth of road infrastructure. Moreover, together with the new public transport network, it is of paramount importance to redefine road sections incorporating lanes for unmotorized mobility, hence enhancing and regenerating public urban space. There are many recent examples, such as Delhi (India) or Bogotá (Colombia), among others, that show the effectiveness of similar interventions. We propose a plan that consists of three steps: (1) a cognitive and qualitative analysis of the project area, (2) analysis of the existing transportation system, and (3) an implementation strategy divided in different phases (short, medium, and long term); for each scenario numerous design solutions and use constrains of the city’s street network have been developed. Our project also aims to characterize Multan’s roads and squares for achieving “re-balanced urban space”: multifunctional and multidimensional spaces not just only for motorized traffic but also carefully studied for public transport, pedestrians, and cyclists. The proposed scenario is analyzed with GIS mapping techniques through which it is also possible to reconstruct the isochronous accessibility maps (comparative travel time analysis) and the PTAL (public transport accessibility level); this kind of scientific analysis permits highlighting the level of service and the index of accessibility in the Multan urban area. A cost/benefit analysis of the proposed interventions (such as shuttle buses and MRTS) has also been developed, in order to verify the potential sustainability of the investment
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Endoscopy-Assisted Intraoral Removal of Elongated Styloid Process: Mini-Invasive Surgical Treatment of Eagle Syndrome
No full textThe aim of this work is to illustrate a transoral mini-invasive approach to safely remove elongated styloid process in Eagle syndrome. A 34-year-old Asian male came to our center referring pharyngeal and cervical pain on the right side on swallowing and opening the mouth. Computed tomography showed elongation of the right styloid process. Surgical removal was performed through endoscopy-assisted intraoral approach using a pituitary curette to perform dissection and piezosurgery for the osteotomy. Surgical intervention was completed in 25 minutes. Postoperative period was uneventful except for transient (12 hours) right facial palsy that resolved spontaneously. Two months after surgery, patient referred resolution of symptoms. This technique is easy to perform and permits to obtain good result with reduction of surgical time and with low risk of complication
A multiband structure based on hammerstein model for nonlinear audio system identification
No full textA subband implementation of a multichannel and multiple position adaptive room response equalizer
No full textThis paper deals with a subband implementation of an adaptive multichannel and multiple position room response equalization system capable of improving the listening experience in a real environment. The main focus of the approach is the introduction of a subband identification procedure capable of estimating in real-time the magnitude responses of a system with a great accuracy and a quick convergence. These aspects are very important also for the equalization procedure to obtain a good accuracy and quick development of the equalization filters as function of the environment variations. Several experiments have been performed in a real scenario to test the performance of the algorithm and to show the beneficial effects of the subband identification on the equalization procedure
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