Step-Indexed Normalization for a Language with General Recursion

The Trellys project has produced several designs for practical dependently typed languages. These languages are broken into two fragments-a_logical_fragment where every term normalizes and which is consistent when interpreted as a logic, and a_programmatic_fragment with general recursion and other convenient but unsound features. In this paper, we present a small example language in this style. Our design allows the programmer to explicitly mention and pass information between the two fragments. We show that this feature substantially complicates the metatheory and present a new technique, combining the traditional Girard-Tait method with step-indexed logical relations, which we use to show normalization for the logical fragment.Comment: In Proceedings MSFP 2012, arXiv:1202.240

Fermion Representation Of The Rolling Tachyon Boundary Conformal Field Theory

A free fermion representation of the rolling tachyon boundary conformal field theory is constructed. The representation is used to obtain an explicit, compact, exact expression for the boundary state. We use the boundary state to compute the disc and cylinder amplitudes for the half-S-brane.Comment: 27 page

Measurements of natives of N.W. Territories

p. 53-68, [5] leaves of plates : ill. ; 24 cm.Includes bibliographical references

Procedural control and the proper balance between public and private interests in defamation claims

Claims in defamation involve courts in balancing of a number of interests. The Claimant’s interest in their reputation must be balanced with the Defendant’s interest in free expression. The Court’s interest in fair, efficient and proportionate adjudication must be balanced against the Claimant’s interest in vindicating their reputation. Much of the literature examining this balance has focused on the substantive law. This article seeks to consider how these interests have been balanced through procedural control mechanisms, such as summary judgment and strike out. In particular, the development of the court’s ability to strike out a claim as an abuse of process is been considered. It is argued that the ability to strike out in such cases performs an important role, but should not be used to prevent reputational vindication where this is worthwhile. Further, it is argued that whilst substantive and procedural changes may reduce the need for strike out, the courts should not remove this important tool from their toolbox

Formalizing of Category Theory in Agda

The generality and pervasiness of category theory in modern mathematics makes it a frequent and useful target of formalization. It is however quite challenging to formalize, for a variety of reasons. Agda currently (i.e. in 2020) does not have a standard, working formalization of category theory. We document our work on solving this dilemma. The formalization revealed a number of potential design choices, and we present, motivate and explain the ones we picked. In particular, we find that alternative definitions or alternative proofs from those found in standard textbooks can be advantageous, as well as "fit" Agda's type theory more smoothly. Some definitions regarded as equivalent in standard textbooks turn out to make different "universe level" assumptions, with some being more polymorphic than others. We also pay close attention to engineering issues so that the library integrates well with Agda's own standard library, as well as being compatible with as many of supported type theories in Agda as possible

Results of a natural history journey

p. 31-62 : ill., maps ; 24 cm

Re-evaluating post-conviction disclosure: A case for ‘better late than never’

This article contends that the legal position regarding the scope of post-conviction disclosure duties ought to be revisited. First, it will discuss the leading Supreme Court case on this issue Nunn v Chief Constable of Suffolk Police and will argue that the decision warrants reconsideration as it is grounded in flawed assumptions that cannot be sustained. Second, it will make the case for strengthening the rights of defendants to access material post-trial, particularly in a climate of austerity where more defendants are relying on university projects and other charitable organisations to assist them in appealing against their conviction. Third, the article will suggest that consideration is given to proposals in an ‘Open Justice Charter’ to promote fairness and transparency in the criminal justice system and, furthermore, will suggest that an independent disclosure agency ought to be established to deal with criminal disclosure issues pre and post-trial

New caribou from the Cassiar Mts., B.C.

p. 149-158 : ill. ; 24 cm.Includes bibliographical references

Male synthetic sling versus artificial urinary sphincter trial for men with urodynamic stress incontinence after prostate surgery (MASTER): Study protocol for a randomised controlled trial

© 2018 The Author(s). Background: Stress urinary incontinence (SUI) is a frequent adverse effect for men undergoing prostate surgery. A large proportion (around 8% after radical prostatectomy and 2% after transurethral resection of prostate (TURP)) are left with severe disabling incontinence which adversely effects their quality of life and many are reliant on containment measures such as pads (27% and 6% respectively). Surgery is currently the only option for active management of the problem. The overwhelming majority of surgeries for persistent bothersome SUI involve artificial urinary sphincter (AUS) insertion. However, this is expensive, and necessitates manipulation of a pump to enable voiding. More recently, an alternative to AUS has been developed - a synthetic sling for men which elevates the urethra, thus treating SUI. This is thought, by some, to be less invasive, more acceptable and less expensive than AUS but clear evidence for this is lacking. The MASTER trial aims to determine whether the male synthetic sling is non-inferior to implantation of the AUS for men who have SUI after prostate surgery (for cancer or benign disease), judged primarily on clinical effectiveness but also considering relative harms and cost-effectiveness. Methods/design: Men with urodynamic stress incontinence (USI) after prostate surgery, for whom surgery is judged appropriate, are the target population. We aim to recruit men from secondary care urological centres in the UK NHS who carry out surgery for post-prostatectomy incontinence. Outcomes will be assessed by participant-completed questionnaires and 3-day urinary bladder diaries at baseline, 6, 12 and 24 months. The 24-h urinary pad test will be used at baseline as an objective assessment of urine loss. Clinical data will be completed at the time of surgery to provide details of the operative procedures, complications and resource use in hospital. At 12 months, men will also have a clinical review to evaluate the results of surgery (including another 24-h pad test) and to identify problems or need for further treatment. Discussion: A robust examination of the comparative effectiveness of the male synthetic sling will provide high-quality evidence to determine whether or not it should be adopted widely in the NHS