Search results for: G. Resta

Items from 1 to 20 out of 50 results

article

Safety and efficacy of intraperitoneal drain placement after emergency colorectal surgery: An international, prospective cohort study

EuroSurg Collaborative†, A Sgrò, R Blanco‐Colino, WUR Ahmed, more

Colorectal Disease > 25 > 10 > 2043 - 2053

Aim Intraperitoneal drains are often placed during emergency colorectal surgery. However, there is a lack of evidence supporting their use. This study aimed to describe the efficacy and safety of intraperitoneal drain placement after emergency colorectal surgery. Method COMPlicAted intra‐abdominal collectionS after colorectal Surgery (COMPASS) is a prospective, international, cohort study into...

article

Timing of nasogastric tube insertion and the risk of postoperative pneumonia: an international, prospective cohort study

EuroSurg Collaborative, JC Glasbey, S Bibi, F Pata, more

Colorectal Disease > 22 > 12 > 2288 - 2297

Aim Aspiration is a common cause of pneumonia in patients with postoperative ileus. Insertion of a nasogastric tube (NGT) is often performed, but this can be distressing. The aim of this study was to determine whether the timing of NGT insertion after surgery (before versus after vomiting) was associated with reduced rates of pneumonia in patients undergoing elective colorectal surgery. Method...

article

Safety of hospital discharge before return of bowel function after elective colorectal surgery

EuroSurg Collaborative, SJ Chapman, R Blanco‐Colino, S Pérez‐Ajates, more

British Journal of Surgery > 107 > 5 > 552 - 559

Background Ileus is common after colorectal surgery and is associated with an increased risk of postoperative complications. Identifying features of normal bowel recovery and the appropriateness for hospital discharge is challenging. This study explored the safety of hospital discharge before the return of bowel function. Methods A prospective, multicentre cohort study was undertaken across an international...

article

Safety and efficacy of non‐steroidal anti‐inflammatory drugs to reduce ileus after colorectal surgery

EuroSurg Collaborative, SJ Chapman, D Clerc, R Blanco‐Colino, more

British Journal of Surgery > 107 > 2 > e161 - e169

Background Ileus is common after elective colorectal surgery, and is associated with increased adverse events and prolonged hospital stay. The aim was to assess the role of non‐steroidal anti‐inflammatory drugs (NSAIDs) for reducing ileus after surgery. Methods A prospective multicentre cohort study was delivered by an international, student‐ and trainee‐led collaborative group. Adult patients undergoing...

article

Treatment of Colorectal Cancer: a Multidisciplinary Approach

G Anania, G Resta, S Marino, N Fabbri, more

Journal of Gastrointestinal Cancer > 2019 > 50 > 3 > 458-468

Background Colorectal cancer is the third most prevalent cancer in the world, preceded by prostate and lung cancers in men (10%) and breast and lung cancers in women (9.4%). Colorectal cancer is the fourth leading cause of death in men (7.6%) and the third in women (8.6%). A multidisciplinary approach has radically changed the way we deal with this disease among all specialist fields. Purpose In...

article

Treatment of colorectal cancer: Multidisciplinay approach

L. Scagliarini, G. Anania, S. Marino, I. Marchitelli, more

European Journal of Surgical Oncology (EJSO) > 2018 > 44 > 4 > 555

chapter

Broadcast and associative operations on fat-trees

G. Bilardi, B. Codenotti, G. Corso, C. Pinotti, more

Lecture Notes in Computer Science > Euro-Par'97 Parallel Processing > 196-207

This paper analyzes the cost of performing broadcast, product and prefix computation on the ideal fat-tree, a model proposed here to capture distance and bandwidth properties common to a variety of fat-tree networks. Algorithms are developed and analyzed in terms of the capacity of channels at different levels of the fat-tree. Non trivial lower bounds are derived establishing the optimality of our...

chapter

Influence of fabrication tolerances on the reliability of RF-MEMS capacitive switches

V. Mulloni, G. Resta, F. Giacomozzi, B. Margesin

2015 XVIII AISEM Annual Conference > 1 - 4

2015 XVIII AISEM Annual Conference

In this paper the comparison between ideal mechanical and electrical performances and measured ones is presented for one of the most common type of switch typology, the RF-MEMS clamped-clamped capacitive switch. The main sources of deviation from design assumptions and ideal behavior occurring during fabrication are found and examined in detail. They can be summarized in a measurable deviation from...

chapter

MEMS packaging by using dry film resist

F. Giacomozzi, V. Mulloni, G. Resta, B. Margesin

2015 XVIII AISEM Annual Conference > 1 - 4

2015 XVIII AISEM Annual Conference

Wafer-level and chip-level bonding of micro-caps to protect sensitive parts are crucial process steps for MEMS integration and packaging. The use of a photosensitive polymer as a bonding and sealing layer is a cheap and simple solution. Hot roll lamination of dry film guarantees very uniform coating of thick polymer layers over wafers with complex topology and moreover has the capability to bridge...

article

Axisymmetric grazing-incidence focusing optics for small-angle neutron scattering

D. Liu, M.V. Gubarev, G. Resta, B.D. Ramsey, more

Nuclear Inst. and Methods in Physics Research, A > 2012 > 686 > Complete > 145-150

We propose and design novel axisymmetric focusing mirrors, known as Wolter optics, for small-angle neutron scattering instruments. Ray-tracing simulations show that using the mirrors can result in more than an order-of-magnitude increase in the neutron flux reaching detectors, while decreasing the minimum wave vector transfer. Such mirrors are made of Ni using a mature technology. They can be coated...

article

Novel neutron focusing mirrors for compact neutron sources

B. Khaykovich, M.V. Gubarev, V.E. Zavlin, R. Katz, more

Physics Procedia > 2012 > 26 > Complete > 299-308

We demonstrated neutron beam focusing and neutron imaging using axisymmetric optics, based on pairs of confocal ellipsoid and hyperboloid mirrors. Such systems, known as Wolter mirrors, are commonly used in x-ray telescopes. A system containing four nested Ni mirror pairs was implemented and tested by focusing a polychromatic neutron beam at the MIT Reactor and conducting an imaging experiment at...

article

Modeling of gold microbeams as strain and pressure sensors for characterizing MEMS packages

A. Faes, G. Resta, F. Solazzi, B. Margesin

Microsystem Technologies > 2012 > 18 > 7-8 > 1139-1145

This work presents the modeling of gold microbeams for characterizing Micro-electro-mechanical systems (MEMS) packages in terms of both strains induced to the MEMS devices and hermetic sealing capability. The proposed test structures are based on arrays of rectangular-shaped clamped-free and clamped–clamped beams, to be realized with a film of electroplated gold by surface micromachining technology...

article

Publishing a Master’s Thesis: A Guide for Novice Authors

Robert G. Resta, Patricia McCarthy Veach, Sarah Charles, Kristen Vogel, more

Journal of Genetic Counseling > 2010 > 19 > 3 > 217-227

Publication of original research, clinical experiences, and critical reviews of literature are vital to the growth of the genetic counseling field, delivery of genetic counseling services, and professional development of genetic counselors. Busy clinical schedules, lack of time and funding, and training that emphasizes clinical skills over research skills may make it difficult for new genetic counselors...

article

Approximation Algorithms for Wireless Link Scheduling With SINR-Based Interference

Douglas M Blough, G Resta, P Santi

IEEE/ACM Transactions on Networking > 2010 > 18 > 6 > 1701 - 1712

In this paper, we consider the classical problem of link scheduling in wireless networks under an accurate interference model, in which correct packet reception at a receiver node depends on the signa-to-interference-plus-noise ratio (SINR). While most previous work on wireless networks has addressed the scheduling problem using simplistic graph-based or distance-based interference models, a few recent...

article

Resta Rejoinder to: Taubman’s “Letter to the Editor”

Robert G. Resta

Journal of Genetic Counseling > 2010 > 19 > 4 > 418-418

chapter

The Effects of Node Cooperation Level on Routing Performance in Delay Tolerant Networks

G. Resta, P. Santi

2009 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks > 1 - 9

2009 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks

In this paper, we analyze the effect of different degrees of node cooperation on the performance of routing protocols for delay tolerant networks. We first present an accurate analytical characterization of the performance of epidemic and two-hops routing in terms of expected packet delivery rate under the standard assumption of fully cooperative node behavior. This characterization is itself an interesting...

chapter

Latency and Capacity Optimal Broadcasting in Wireless Multihop Networks

G. Resta, P. Santi

2009 IEEE International Conference on Communications > 1 - 6

ICC 2009 - 2009 IEEE International Conference on Communications

In this paper, we study the fundamental properties of broadcasting in multi-hop wireless networks. Previous studies have shown that, as long as broadcast capacity is concerned, asymptotically optimal broadcasting is possible in wireless multi-hop networks under very general conditions. However, none of the existing work on broadcast capacity has considered latency in message delivery, which is simply...

article

Unprepared, Understaffed, and Unplanned: Thoughts on the Practical Implications of Discovering New Breast and Ovarian Cancer Causing Genes

Robert G. Resta

Journal of Genetic Counseling > 2009 > 18 > 6 > 521-523

chapter

A framework for joint scheduling and diversity exploitation under physical interference in wireless mesh networks

D.M. Blough, S. Das, G. Resta, P. Santi

2008 5th IEEE International Conference on Mobile Ad Hoc and Sensor Systems > 396 - 403

2008 5th IEEE International Conference on Mobile Ad Hoc and Sensor Systems (MASS)

Recently, interest has arisen in use of realistic interference models for transmission scheduling in wireless multihop networks, particularly in mesh networks where throughput is a major concern. In this work, we use the SINR-based physical interference model and develop a uniform framework for transmission scheduling when diverse wireless resources can be exploited. The factors considered are multiple...

article

The COMMIT Protocol for Truthful and Cost-Efficient Routing in Ad Hoc Networks with Selfish Nodes

S. Eidenbenz, G. Resta, P. Santi

IEEE Transactions on Mobile Computing > 2008 > 7 > 1 > 19 - 33

We consider the problem of establishing a route and sending packets between a source/destination pair in ad hoc networks composed of rational selfish nodes whose purpose is to maximize their own utility. In order to motivate nodes to follow the protocol specification, we use side payments that are made to the forwarding nodes. Our goal is to design a fully distributed algorithm such that (1) a node...

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INFONA - science communication portal

Search results for: G. Resta

Safety and efficacy of intraperitoneal drain placement after emergency colorectal surgery: An international, prospective cohort study

Timing of nasogastric tube insertion and the risk of postoperative pneumonia: an international, prospective cohort study

Safety of hospital discharge before return of bowel function after elective colorectal surgery

Safety and efficacy of non‐steroidal anti‐inflammatory drugs to reduce ileus after colorectal surgery

Treatment of Colorectal Cancer: a Multidisciplinary Approach

Treatment of colorectal cancer: Multidisciplinay approach

Broadcast and associative operations on fat-trees

Influence of fabrication tolerances on the reliability of RF-MEMS capacitive switches

MEMS packaging by using dry film resist

Axisymmetric grazing-incidence focusing optics for small-angle neutron scattering

Novel neutron focusing mirrors for compact neutron sources

Modeling of gold microbeams as strain and pressure sensors for characterizing MEMS packages

Publishing a Master’s Thesis: A Guide for Novice Authors

Approximation Algorithms for Wireless Link Scheduling With SINR-Based Interference

Resta Rejoinder to: Taubman’s “Letter to the Editor”

The Effects of Node Cooperation Level on Routing Performance in Delay Tolerant Networks

Latency and Capacity Optimal Broadcasting in Wireless Multihop Networks

Unprepared, Understaffed, and Unplanned: Thoughts on the Practical Implications of Discovering New Breast and Ovarian Cancer Causing Genes

A framework for joint scheduling and diversity exploitation under physical interference in wireless mesh networks

The COMMIT Protocol for Truthful and Cost-Efficient Routing in Ad Hoc Networks with Selfish Nodes

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