Have we seen anything beyond (N)NLO DGLAP at HERA?

The evidence from HERA for parton saturation, and other low-$x$ effects beyond the conventional DGLAP formalism, is recalled and critically reviewed in the light of new data and analyses presented at the conference.Comment: 4 pages, 5 figures, Contribution to the discussion session at Intenrational Symposium on Multiparticle Dynamics, ISMD08, Hambur

Informed consent and the transmission of sexual disease: Dadson Revivified

This article examines the impact of the decisions in R v Dica (2004) and R v Konzani (2005) on the extent of the defence of consent. As well as analysing the impact of the decisions on the extent of the defence where a defendant faces criminal liability for the transmission of sexual disease, it also considers and examines the wider issue of whether the presence or absence of consent forms part of the actus reus of the relevant assault offence or whether it is a separate and independent element that stands outside of the conduct component of the offence. It is argued that recent developments have given insufficient consideration to accepted doctrine and revived much criticised principles by focusing on unknown circumstances of justification rather than the defendant's state of knowledge and mind

Measurements of αs\alpha_s and parton distribution functions using HERA jet data

Use of HERA jet production cross sections can extend our knowledge of the gluon parton distribution function and yield accurate measurements of $\alpha_s(M_Z)$ in addition to illustrating the running of $\alpha_s$ with scale.Comment: Proceedings of the Ringberg Workshop on `New Trends in HERA Physics 2005

Determination of Charm Quark Mass and αs(MZ)\alpha_s(M_Z) from HERA data

Charm production data from HERA can be used to determine the charm quark mass and jet production data from HERA can be used to detrmine $\alpha_s(M_Z)$. recent results are summarised.Comment: 11 pages, 9 figures. Invited talk at the Workshop on the Fundamental Parameters of QCD, NTU, Singapore, March 201

Upstream-radiated rotor–stator interaction noise in mean swirling flow

A major component of the noise in modern aeroengines is rotor–stator interaction noise generated when the wake from the rotating fan impinges on a stator row downstream. An analytically based model for the prediction of upstream-radiated rotor–stator interaction noise is described, and includes the important effect of mean swirling flow on both the rotor wake evolution and the acoustic response. The analytic nature of the model allows for the inclusion of all wake harmonics and enables the response at all blade passing frequencies to be determined. An asymptotic analysis based on large rotor blade number is used to model the evolution of the rotor wake downstream in a cylindrical duct carrying mean swirling flow. The equations governing the axial evolution of the wake simplify to three coupled first-order differential equations in the interior, while close to the duct walls, a boundary-layer correction is required in order to satisfy the impermeability conditions at the boundaries. At the stator location, the wake is used as input into a local linear cascade model at each radius. The interaction of each wake harmonic gives rise to acoustic waves of multiple azimuthal order which contribute to the pressure field radiated back upstream. This enables the total acoustic response to be determined in terms of cylindrical duct modes in mean swirling flow. The effect of stator blade geometry (thickness, camber, angle of attack) and rotor–stator separation on the total upstream-radiated noise is determined. Blade geometry is shown to have a significant effect on the noise generated, and increasing the rotor–stator gap can lead to large reductions in noise levels. Asymptotic treatment of the acoustic field, based on large azimuthal order, is also considered and used to identify the dominant contributions to the total pressure field resulting from the rotor–stator interaction. The ray structure of the acoustic modes in swirl is shown to be very different in some cases from that in uniform flow

Diffusive mixing as a tool for confirming the origin of tektites Semiannual report, Apr. 1, 1967 - Sep. 30, 1967

Homogeneity of Thailand tektites and self- diffusion measurements of silicon, strontium, and potassiu