86,776 research outputs found
Laparoscopic robot-assisted major hepatectomy.
No full textBACKGROUND:
We herein present a systematic review of English literature on robot-assisted major hepatectomy (MH).
METHODS:
Major hepatectomy was defined as resection of three or more liver segments. A literature search was performed using the Pubmed database. Articles containing more than five robotic MH were selected. In case of multiple publications from the same institution, only the most recent article was considered in order to avoid double counting of patients between series.
RESULTS:
Five articles were included in this review. A total of 68 robotic MH were analyzed, including 38 right hepatectomies and 30 left hepatectomies. There were no deaths. Two right hepatectomies (5.2%) and one left hepatectomy (3.3%) were converted to open surgery. Weighted average of operative time and intraoperative blood loss were 418.6 min and 411.4 ml, respectively. Four patients received blood transfusions (6.3%) and 17 developed postoperative complications (26.9%). Information on tumor type were available for 57 patients of whom 42 were diagnosed with malignant tumors (73.6%) and 15 with benign diseases (26.3%). No port site metastasis, peritoneal carcinomastosis, or intrahepatic recurrence were reported. Three patients had microscopic margin positivity.
CONCLUSIONS:
Major hepatectomy can be performed under robotic assistance. Further experience is needed before final conclusions can be drawn
Final outcomes on the multi-disciplinary long-term monitoring and preservation state investigation on the medieval external Façades of Palazzo Ducale in Venice, Italy
No full textThe paper presents the results of the survey, research and monitoring activities carried out at Palazzo Ducale in Venice, Italy, between 2009 and 2013. A team of academic and technical personnel of the IUAV University designed and carried on the programme. The aim was to acquire knowledge and data to establish a clear picture of the preservation state of the two XIV-XV Century external façades (South and West). The size of the façades, their complex and uncertain consistency, as well as their long and complicated history dictated the choice of multi-disciplinary, integrated and nondestructive methodologies. In detail, the diagnostics consisted of static monitoring of cracks and rotation, dynamic monitoring along a critical vertical section, sonic wave velocity measurements, endoscopic probing and ground penetrating radar, infrared thermographic imaging and finally chemical analyses of stone samples. The results of the diagnostic procedures were supported by other information from visual and geometric surveys, bibliographic research and conventional calculations. The outcomes of the programme enlightened specific conclusions for each activity as well as crossing multi-disciplinary points of view; the latter are about the quality and consistency of the load-bearing masonry, the stress state in the façade walls and the potentially critical issues. Optimization of the then-available knowledge and programme results was definitely an objective and could finally be reached. The outcomes could update the scientific knowledge basis and support maintenance design for this unique and world-famous monument
COTIIP: a new covert channel based on incomplete IP packets
No full textA Covert Channel is a communication channel able to transfer information between two or more hosts, using the resources of another communication channel, so that who can read the information carried by the latter cannot realize an information exchange is ongoing in the former. Many types of covert channels have been described in literature, together with countermeasures to block them.
After an overview of the literature on the subject, the present paper will describe COTIIP (COmmunicating Through Incom- plete IP Packets) a new covert channel based on the TCP/IP protocol. COTIIP is based on the transmission of incomplete fragmented IP packets. The receiver will use the information about incomplete or missing packets to restore the original message. A first assessment of some possible countermeasures aimed at suppressing or exposing the use of such channel will also be proposed
Cord blood transplantation in children with haematological malignancies
No full textUmbilical cord blood transplantation (UCBT) is largely used to treat children affected by haematological malignant disorders. In comparison to bone marrow transplantation (BMT), advantages of UCBT include lower incidence and severity of graft-versus-host disease, easier procurement and prompter availability of cord blood cells, and the possibility of using donors having HLA disparities with the recipient. The large experience accumulated so far has shown that UCBT offers to children a probability of cure at least comparable to that of patients transplanted with bone marrow cells. Since it has been demonstrated that an inverse correlation between the number of nucleated cord blood cells infused per kg recipient body weight and the risk of dying for transplantation-related causes exists, recently developed strategies aimed at increasing the number of cord blood progenitors and at favouring stem cell homing could further optimize the outcome of children with leukemia or other malignancies receiving UCBT. © 2010 Elsevier Ltd. All rights reserved
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Health conditions of immigrants passing through the reception centre of Otranto between 1991 and 2000
No full textDue to its geography and coastal development, the South part of Salento is particularly exposed to clandestine immigration. The aim of this study was to evaluate the characteristics of the migratory stream that has involved the reception centre of Otranto during 1991-2000. Immigrants' health conditions were also evaluated by consulting the medical reports of those taken to hospital after landing. It emerged that, since 1991, migration along the coastline of Salento involved 69,263 subjects mostly coming from Albania and Kosovo. Immigrants' health conditions generally appeared to be fairly good, considering the limited frequency of hospitalisations (1.1% of immigrants) and the specific categories of hospitalised patients (nearly 30%. were pregnant women and nearly 24% were children). Among the persons examined, no imported diseases were discovered, rather conditions related to the precarious voyage and a high prevalence of HBsAg carriers (12.1%)
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