42 research outputs found
Proof-of-Concept of Real-World Quantum Key Distribution with Quantum Frames
We propose and experimentally investigate a fibre-based quantum key
distribution system, which employs polarization qubits encoded into faint laser
pulses. As a novel feature, it allows sending of classical framing information
via sequences of strong laser pulses that precede the quantum data. This allows
synchronization, sender and receiver identification, and compensation of
time-varying birefringence in the communication channel. In addition, this
method also provides a platform to communicate implementation specific
information such as encoding and protocol in view of future optical quantum
networks. Furthermore, we report on our current effort to develop high-rate
error correction.Comment: 25 pages, 14 figures, 4 table
Children of Prisoners: Their Situation and Role in Long-Term Crime Prevention
Studies suggest that maintaining family ties can help reduce the likelihood of reoffending, and that while parental imprisonment can increase a childâs likelihood to offend, positive responses to the situation can aid the childrenâs well-being, attitude and attainment. Drawing on findings from the recently completed EU-funded COPING Project on the mental health of children of prisoners, this chapter explores the factors that aid a childâs ability to cope with parental imprisonment and the actions that different stakeholders can take to support them. It identifies some of the mental health impacts at different stages of parental imprisonment, the roles played by non-imprisoned parents/carers and by schools, and suggests options for further clarifying the factors that help and hinder children of prisoners in the short and long term
Ultrasonic intensification as a tool for enhanced microbial biofuel yields
peer-reviewedUltrasonication has recently received attention as a novel bioprocessing tool for process intensification in many areas
of downstream processing. Ultrasonic intensification (periodic ultrasonic treatment during the fermentation process)
can result in a more effective homogenization of biomass and faster energy and mass transfer to biomass over short
time periods which can result in enhanced microbial growth. Ultrasonic intensification can allow the rapid selective
extraction of specific biomass components and can enhance product yields which can be of economic benefit. This
review focuses on the role of ultrasonication in the extraction and yield enhancement of compounds from various
microbial sources, specifically algal and cyanobacterial biomass with a focus on the production of biofuels. The
operating principles associated with the process of ultrasonication and the influence of various operating conditions
including ultrasonic frequency, power intensity, ultrasonic duration, reactor designs and kinetics applied for ultrasonic
intensification are also described
McEntee, Kenneth B.
Memorial Statement for Professor Kenneth B. McEntee, D.V.M. (1921-2005) who was Professor (1947) and Emeritus Professor (1980) at the Cornell University College of Veterinary Medicine. He also served as Chairman of the Department of Large Animal Medicine, Obstetrics and Surgery and was Associate Dean for Clinical Studies. "Dr. McEntee achieved international distinction as the founder of the subspecialty of veterinary reproductive pathology, being the first veterinary pathologist to devote his career to the study of diseases of the reproductive system." "Dr. McEntee's combination of diagnostic acumen and expertise in pathology made him an effective teacher of veterinary students, graduate students and practicing veterinarians." He wrote a book, "Reproductive Pathology of Domestic Animals" (1990). The memorial statements contained herein were prepared by the Office of the Dean of the University Faculty of Cornell University to honor its faculty for their service to the university