66,162 research outputs found
LICEO FARNESINA. Nuovi spazi didattici.
No full textIl contributo riguarda la presentazione/illustrazione del Progetto di RDM Studio (PV. Dell'Aira, P. Misino, M. Ruggieri, P. Troiano) al Concorso Internazionale "Liceo Farnesina".
L’obiettivo principale contenuto nel Bando Concorsuale, riguardava la fattibilità in 2 fasi, dovuta a specifiche necessità finanziarie. Il progetto trae la sua organizzazione morfologica da tale requisito, conformando il plesso scolastico come edificio "bino", attraverso due volumetrie tra loro interconnesse, strutturalmente indipendenti e realizzabili in successione consentendo un'eventuale cantierizzazione "in esercizio".The contribution concerns the presentation / illustration of the Project of RDM Studio (PV. Dell'Aira, P. Misino, M. Ruggieri, P. Troiano) at the International Competition "Liceo Farnesina".
The main objective contained in the Call for Proposals was the two-stage feasibility, due to specific financial needs. The project draws its morphological organization from that requirement by conforming the school plexus to a "bino" building, through two interconnected volumes, structurally independent and executable in succession, allowing a possible "operational" construction
Surgical treatment for spinal metastases.
No full textThe treatment of spinal metastases aims to improve or maintain neurological status, achieve local control of the disease and maintain or restore spinal stability. Three types of surgery are possible: ▪ Palliative (the most frequent): consists of laminectomy and posterior stabilization. It is performed to treat complications from the metastases (pathological fractures and spinal cord compression), but it does not directly treat the bone lesion, leaving its treatment to other therapies (radio–chemo–hormone–immunotherapy). It is indicated in patients with a severe prognosis or with a good predictive response to radiotherapy (Figure 7.1) [1–4];▪ Adjuvant (frequent): consists of total or partial piecemeal removal of the lesion combined with other local therapies, such as radiation, embolization and thermal ablation. It is indicated in all patients who have a fair prognosis (Figure 7.2);▪ Radical (rare): consists of complete en bloc removal of the metastasis with a layer of healthy surrounding soft tissue to free patients from the disease, at least in that site. It is indicated in patients with good prognosis (Figure 7.3) [1–4]
Millimeter Waves and High-Throughput Satellites: The New Frontier Toward Terabit Connectivity in the Sky
No full textToday, connectivity is a pivotal aspect of our lives, basically a right of Humanity, and a fundamental ally towards a sustainable future. This calls for a disruptive, rather than evolutionary and predictable, approach for the definition of future space technologies and architectures. Based on the “connecting the unconnected” paradigm, these systems shall both supply a wider coverage and satisfy the ever increasing demand for larger capacities and cheaper services. In this framework, the enhanced system flexibility, reconfigurability, and sustainability to provide user-tailored services shall be a cornerstone in the design and definition of technologies and architectures for future Satellite Communications (SatCom) systems. In this Chapter, we explore several technologies and architectures for the next generation of space systems based on High Throughput Satellites and mmWaves. In fact, both the widespread use of mmWave links and HTS-based architectures could play a key role to make the magic blend for “connecting the unconnected” become a reality in the near future
Technologies and infrastructures for a sustainable space
No full textThe space is going to become an unsafe place to operate. The amount of active and passive space objects (satellites and debris) that are concentrated in some orbits represents a treat. In such a crowded environment, spectrum management becomes more complex and the probability to operate with high level of interference increases. It is becoming more and more clear that actions are needed to make the space more sustainable. Much of the effort is nowadays in reducing the risk associated to the already produced “space junks”. This chapter outlines the need to design future missions through a common sustainability-prone strategy that aim to stop producing further pollution. The chapter describes the proposed strategy and key technologies to enable it
Aerospace technologies and applications for dual use - a new world of defense and commercial in 21st century security
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Surgical treatment and results of 62 patients with epithelioid hemangioendothelioma of bone.
No full textOBJECTIVE: Purpose of this retrospective study was (1) to evaluate overall survival and survival to local recurrence of patients with unifocal and multifocal tumor and (2) to evaluate survival to local recurrence after intralesional or wide surgery.
MATERIAL AND METHODS: We reviewed 62 patients with epithelioid hemangioendothelioma of bone, treated from 1985 to 2010. Histological sections and immunohistochemistry were evaluated. Tumor presented as unifocal in 49 patients and as multifocal in 13.
RESULTS: Mean follow-up was 9 years. Five patients (10%) with unifocal tumor progressed to multifocal. Overall survival was 92% at 10 years. Survival with unifocal tumor was significantly higher than survival with multifocal tumor. Survival to local recurrence was 76% at 10 years, significantly higher after wide resection than after intralesional surgery, while there was no statistical difference comparing unifocal and multifocal tumor. At multivariate analysis both variables showed no statistically significance.
CONCLUSION: Wide surgical excision reduces the risk of local recurrence, but functional results and morbidity need to be considered individually when defining surgical indications. Due to the risk of radiation-induced sarcomas, radiation therapy should be reserved to those cases not amenable to wide surgery or when lesions are seated locations difficult to treat. J. Surg. Oncol. © 2014 Wiley Periodicals, Inc.
© 2014 Wiley Periodicals, Inc
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