A continued fraction generator for smooth pulse sequences

Digital circuit produces rational output pulse rate at fraction of continuous input pulse rate. Output pulses have average rate with least possible deviation from absolute correct time spacing. Circuit uses include frequency synthesizing, fraction generation, and approximation of irrational sequences

On the effect of SNR and superdirective beamforming in speaker diarisation in meetings

This paper examines the effect of sensor performance on speaker diarisation in meetings and investigates the use of more advanced beamforming techniques, beyond the typically employed delay-sum beamformer, for mitigating the effects of poorer sensor performance. We present superdirective beamforming and investigate how different time difference of arrival (TDOA) smoothing and beamforming techniques influence the performance of state-of-the-art diarisation systems. We produced and transcribed a new corpus of meetings recorded in the instrumented meeting room using a high SNR analogue and a newly developed low SNR digital MEMS microphone array (DMMA.2). This research demonstrates that TDOA smoothing has a significant effect on the diarisation error rate and that simple noise reduction and beamforming schemes suffice to overcome audio signal degradation due to the lower SNR of modern MEMS microphones. Index Terms — Speaker diarisation in meetings, digital MEMS microphone array, time difference of arrival (TDOA), superdirective beamforming 1

Discrimination of increases in the brightness of a flashing beacon

Human performance measured as function of reaction time required to discriminate change in beacon brightnes

Topological Winding and Unwinding in Metastable Bose-Einstein Condensates

Topological winding and unwinding in a quasi-one-dimensional metastable Bose-Einstein condensate are shown to be manipulated by changing the strength of interaction or the frequency of rotation. Exact diagonalization analysis reveals that quasidegenerate states emerge spontaneously near the transition point, allowing a smooth crossover between topologically distinct states. On a mean-field level, the transition is accompanied by formation of grey solitons, or density notches, which serve as an experimental signature of this phenomenon.Comment: 4 pages, 3 figure

Rule of Law For Whom? Strengthening Rule of Law as a Solution to Sexual Violence in the Democratic Republic of Congo

This article suggests that programs designed to strengthen the rule of law in general are unlikely to be effective against the widespread problem of sexual violence in the Democratic Republic of the Congo. I argue that while weak rule of law perpetuates sexual violence, only rule of law programs designed specifically with respect to the needs, risks, and cultural norms pertaining to Congolese women can help curb this problem. The article begins with a brief history of conflict in the Great Lakes region of Africa to provide context for a discussion of the scope of sexual violence in the eastern provinces of the DR Congo. It then introduces the notion of rule of law before evaluating the ways in which weak rule of law in the eastern DR Congo contributes to the problem of sexual violence. Finally, the article makes four arguments to support the central claim that strengthening the rule of law will be effective against sexual violence only if specifically tailored in the ways noted above

Too Rough a Justice: The Ethiopia-Eritrea Claims Commission and Civil Liability for Claims for Rape under International Law

The developments in international law prohibiting rape during armed conflict have grown at a rapid pace in recent decades. Whereas rape had long been considered an inevitable by-product of armed conflict, evolution in international humanitarian law (IHL) has relegated this conception mostly to the past. The work of international criminal tribunals has been at the forefront of this change, developing the specific elements of the international crime of rape, and helping to change the perception of rape in international law violations of IHL, however also give rise to civil liability Despite the advances with respect to rape made in the international criminal law context, non-criminal adjudication of claims for rape has been rare. Recently the Ethiopia-Eritrea Claims Commission completed eight years of work, making numerous damage awards for civil claims based on violations of IlIL that occurred during the war between those two states. Among the claims that it heard were several claims for rape, brought by both parties Thus, the completed work of the Ethiopia-Eritrea Claims Commission represents an important opportunity to examine civil adjudication of claims for rape under IHL. This Article asks whether the work of the Commission has helped to extend the protections afforded by IHL, and whether its treatment of the claims for rape is in line with the progress made within IHL regarding the conceptualization of rape. It locates and analyzes the work of the Commission within the broader changes that have occurred within IHL with respect to rape, outlines the work of the Commission, and analyzes its substantive and procedural decisions. This Article argues that, while the Commission contributed certain substantive and procedural advances to IHL, it may have simultaneously created certain gaps in the IHL regime and hindered the conceptualization of rape within IHL

Valuing the voluntary sector: rethinking economic analysis

The voluntary sector plays an important role in the sports industry, as a provider of sporting opportunities and in the development of sport, from increasing participation through to supporting excellence and elite performance. However, despite this importance, research on its contribution to sport-related economic activity is limited, with information on this sector remaining the weakest part of current economic assessments of the UK sports industry. The research presented in this article examines the economic importance of the voluntary sector, using a case study of Sheffield. It demonstrates that the sports voluntary sector in the city is considerably smaller than was predicted when using national estimates, and that this is largely a consequence of methodological issues relating to previous research. The article suggests that in the light of the findings and the increasing use of sport in urban policy, there is a need to rethink the methodology used to evaluate the economic contribution of the voluntary sector in the future.</p