The Peer2Me Framework: A Framework for Mobile Collaboration on Mobile Phones

This project continues the work started in our depth study project in the fall of 2004, develop- ing a framework for mobile collaborative applications on mobile phones utilizing Personal Area Networks (PANs). This paper describes central, theoretical concepts connected to the Peer-to-Peer (P2P) comput- ing, the Mobile Ad Hoc NETworks (MANETs) and the Computer Supported Cooperative Work (CSCW) domains, focusing on "Same-Place-Same-Time" collaboration. We argue how the spread of PAN technology and mobile phones enable for a broad range of new collaborative applications supporting both collocated work and spontaneous interaction. Updated information about relevant technologies and related projects are discussed and evaluated. The requirements for the Peer2Me framework are presented and updated along with a revised and improved design. The design and the requirements are a product of an explorative development effort to develop the next generation of the Peer2Me framework using Java 2 Micro Edition and the Java APIs for Bluetooth wireless technology (JABWT). The Peer2Me framework is then tested on actual developers in a workshop arranged in May 2005. Data gathered from this workshop is used to illustrate the benefits of using a framework like Peer2Me for developing mobile collaborative applications. In addition to the actual Peer2Me framework implementation along with its Bluetooth network module, example applications are designed, implemented and tested in order to verify the suit- ability of the Peer2Me framework in the problem domain. These applications illustrate different kinds of aspects of the Peer2Me framework and the domain of mobile collaborative applications. The tests of these applications are done through enactment of the usage scenarios from which the applications were derived. The main results of this project are the technical products comprised of the Peer2Me framework, the Bluetooth Network module and the example Peer2Me applications, as well as the empirical data supporting the advantages of Peer2Me and the evaluations upon the suitability of the applied technologies

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

The Peer2Me Framework: A Framework for Mobile Collaboration on Mobile Phones

This project continues the work started in our depth study project in the fall of 2004, develop- ing a framework for mobile collaborative applications on mobile phones utilizing Personal Area Networks (PANs). This paper describes central, theoretical concepts connected to the Peer-to-Peer (P2P) comput- ing, the Mobile Ad Hoc NETworks (MANETs) and the Computer Supported Cooperative Work (CSCW) domains, focusing on "Same-Place-Same-Time" collaboration. We argue how the spread of PAN technology and mobile phones enable for a broad range of new collaborative applications supporting both collocated work and spontaneous interaction. Updated information about relevant technologies and related projects are discussed and evaluated. The requirements for the Peer2Me framework are presented and updated along with a revised and improved design. The design and the requirements are a product of an explorative development effort to develop the next generation of the Peer2Me framework using Java 2 Micro Edition and the Java APIs for Bluetooth wireless technology (JABWT). The Peer2Me framework is then tested on actual developers in a workshop arranged in May 2005. Data gathered from this workshop is used to illustrate the benefits of using a framework like Peer2Me for developing mobile collaborative applications. In addition to the actual Peer2Me framework implementation along with its Bluetooth network module, example applications are designed, implemented and tested in order to verify the suit- ability of the Peer2Me framework in the problem domain. These applications illustrate different kinds of aspects of the Peer2Me framework and the domain of mobile collaborative applications. The tests of these applications are done through enactment of the usage scenarios from which the applications were derived. The main results of this project are the technical products comprised of the Peer2Me framework, the Bluetooth Network module and the example Peer2Me applications, as well as the empirical data supporting the advantages of Peer2Me and the evaluations upon the suitability of the applied technologies

The Peer2Me Framework : A Framework for Mobile Collaboration on Mobile Phones

This project continues the work started in our depth study project in the fall of 2004, develop- ing a framework for mobile collaborative applications on mobile phones utilizing Personal Area Networks (PANs). This paper describes central, theoretical concepts connected to the Peer-to-Peer (P2P) comput- ing, the Mobile Ad Hoc NETworks (MANETs) and the Computer Supported Cooperative Work (CSCW) domains, focusing on "Same-Place-Same-Time" collaboration. We argue how the spread of PAN technology and mobile phones enable for a broad range of new collaborative applications supporting both collocated work and spontaneous interaction. Updated information about relevant technologies and related projects are discussed and evaluated. The requirements for the Peer2Me framework are presented and updated along with a revised and improved design. The design and the requirements are a product of an explorative development effort to develop the next generation of the Peer2Me framework using Java 2 Micro Edition and the Java APIs for Bluetooth wireless technology (JABWT). The Peer2Me framework is then tested on actual developers in a workshop arranged in May 2005. Data gathered from this workshop is used to illustrate the benefits of using a framework like Peer2Me for developing mobile collaborative applications. In addition to the actual Peer2Me framework implementation along with its Bluetooth network module, example applications are designed, implemented and tested in order to verify the suit- ability of the Peer2Me framework in the problem domain. These applications illustrate different kinds of aspects of the Peer2Me framework and the domain of mobile collaborative applications. The tests of these applications are done through enactment of the usage scenarios from which the applications were derived. The main results of this project are the technical products comprised of the Peer2Me framework, the Bluetooth Network module and the example Peer2Me applications, as well as the empirical data supporting the advantages of Peer2Me and the evaluations upon the suitability of the applied technologies

Teaching supervisor:

This project explores the domain of collaborative applications using mobile phones and Personal Area Networks (PANs) from a technical perspective, resulting in a design and implementation of a framework for developing such applications. This paper describes central, theoretical concepts connected to Peer-to-Peer (P2P) computing, Mobile Ad Hoc NETworks (MANETs) and the Computer Supported Cooperative Work (CSCW) domains, focusing on “Same-Place-Same-Time ” collaboration. We argue how the spread of PAN technology and mobile phones enable for a broad range of collaborative applications supporting both collocated work and spontaneous interaction. We also present a wide study of available technologies for one family of MANETs, PANs. We then present and classify several usage scenarios of collaborative applications on mobile phones and study the scenarios in detail, producing a set of requirements for a framework. These requirements are then used to iteratively design and implement a network independent framework with support for Java 2 Micro Edition. In addition to the framework itself, the design and implementation of a Bluetooth network module for the framewor

Liver transplantation for acute liver failure – a 30-year single center experience

<p><b>Objective:</b> To determine overall long-term patient and graft survival rates among the recipients liver transplanted due to acute liver failure (ALF). Secondary aims included assessment of whether diagnosis, donor-recipient blood group compatibility and time-era of transplantation affected the outcome, and whether prescription-free availability of acetaminophen increased the need for liver transplantation (LTx).</p> <p><b>Materials and Methods:</b> A Retrospective cohort study of 78 patients who underwent LTx for ALF at Karolinska University Hospital 1984–2014. Patients were divided into two cohorts according to two 15-year periods: early cohort transplanted 1984–1999 (<i>n</i> = 40) and late cohort transplanted 2000–2014 (<i>n</i> = 38). Survival rates were established using Kaplan-Meier analyses.</p> <p><b>Results:</b> ALF patient survival rates for 1-year, 5-years, 10-years and 20-years were 71%, 63%, 52% and 40%, respectively. Survival for the late cohort at 1, 5 and 10 years was 82%, 76% and 71%, respectively. A high early mortality rate was noted during the first three months after transplantation when compared to LTx patients with chronic disease. Long-term survival rates were comparable between patients with ALF and chronic liver disease. Prescription-free access to acetaminophen did not increase the need for LTx. There was a strong trend towards improved survival in blood group identical donor-recipient pairs and blood group O recipients may have benefitted from this.</p> <p><b>Conclusions:</b> The high early mortality rate most likely reflects the critical pre-transplant condition in these patients and the urgent need to sometimes accept a marginal donor liver. Long-term survival improved significantly over time and variation in patient access to acetaminophen did not influence the rate of LTx in our region.</p