Avoiding the Detector Blinding Attack on Quantum Cryptography

We show the detector blinding attack by Lydersen et al [1] will be ineffective on most single photon avalanche photodiodes (APDs) and certainly ineffective on any detectors that are operated correctly. The attack is only successful if a redundant resistor is included in series with the APD, or if the detector discrimination levels are set inappropriately

Bepress & SSRN Pilot Results: Exploring New Synergies for Open Access and Legal Scholarship

In March 2018 bepress and SSRN launched a pilot to explore integration between their platforms, partnering with the University of Georgia School of Law and Columbia Law School. This webinar brings two panelists from each law school to discuss the pilot, share findings, and explore implications for the landscape of open access legal scholarship. Topics include: What are the data and learnings from the pilot? How to foster author trust and enthusiasm for placing content on both platforms? What are the best workflows for administrators at institutions leveraging both Digital Commons and SSRN

C1 inhibitor deficiency: 2014 United Kingdom consensus document

C1 inhibitor deficiency is a rare disorder manifesting with recurrent attacks of disabling and potentially life-threatening angioedema. Here we present an updated 2014 United Kingdom consensus document for the management of C1 inhibitor-deficient patients, representing a joint venture between the United Kingdom Primary Immunodeficiency Network and Hereditary Angioedema UK. To develop the consensus, we assembled a multi-disciplinary steering group of clinicians, nurses and a patient representative. This steering group first met in 2012, developing a total of 48 recommendations across 11 themes. The statements were distributed to relevant clinicians and a representative group of patients to be scored for agreement on a Likert scale. All 48 statements achieved a high degree of consensus, indicating strong alignment of opinion. The recommendations have evolved significantly since the 2005 document, with particularly notable developments including an improved evidence base to guide dosing and indications for acute treatment, greater emphasis on home therapy for acute attacks and a strong focus on service organisation. This article is protected by copyright. All rights reserved

Efficient generation of tunable photon pairs at 0.8 and 1.6 micrometer

We demonstrate efficient generation of collinearly propagating, highly nondegenerate photon pairs in a periodically-poled lithium niobate cw parametric downconverter with an inferred pair generation rate of 1.4*10^7/s/mW of pump power. Detection of an 800-nm signal photon triggers a thermoelectrically-cooled 20%-efficient InGaAs avalanche photodiode for the detection of the 1600-nm conjugate idler photon. Using single-mode fibers as spatial mode filters, we obtain a signal-conditioned idler-detection probability of about 3.1%.Comment: 8 pages, 3 figure

Improving the recording of surgical drain output.

Monitoring the output from surgical drains is an important part of post-operative care and is often undertaken poorly. Failure to have accurate documentation of daily outputs may delay the removal of drains and increase the risk of complications. Following discussions with medical and nursing staff we listed eight key criteria that should be routinely monitored for surgical drains. A baseline measurement demonstrated only 20% compliance with these criteria. As such we decided to design a chart, after discussing with the multidisciplinary team, with adequate space to document drain output clearly. Post-intervention data collection showed a reasonable uptake of the chart (70%) with overall criteria compliance increasing to 55%. We made further interventions designed to raise awareness of the chart, which increased chart uptake to 79% and compliance to 63%, leading to the adoption of the chart by the department. Twelve months after introducing the chart we conducted a final data collection which demonstrated the chart was now being used in 100% of patients and that overall criteria compliance had increased to 78%. While some of the key criteria are still not documented for all patients, we have demonstrated that the introduction of a simple and well-designed drain chart can significantly improve the documentation of drain output, thereby improving patient safety and discharge efficiency.This article is freely available via Open Access. Click on the 'Additional Links' above to access the full text via the publisher's site.Published