W and Z bosons will be produced copiously at the LHC proton-proton collider. We study the parton distribution dependence of the total production cross sections and rapidity distributions, paying particular attention to the uncertainties arising from uncertainties in the parton distributions themselves. Variations in the gluon, the strong coupling, the sea quarks and the overall normalisation ar...

To cite: Prah P, Copas AJ, Mercer CH, et al. Sex Transm Infect 2014;90:90–93. ABSTRACT Objectives Britain’s second National Survey of Sexual Attitudes and Lifestyles (Natsal-2) was conducted in 1999– 2001 and the third (Natsal-3) was conducted in 2010– 2012 to update prevalence estimates of sexual behaviours and assess changes over time. We investigated whether there was a change in reporting b...

In the present work, an inverse analysis of combined radiation and laminar forced convection heat transfer in a two-dimensional channel with variable cross sections is performed. The conjugate gradient method is used to find the temperature distribution over the heater surface to satisfy the prescribed temperature and heat flux distributions over the design surface. The fluid is considered to b...

Sea level, currents, and ice distribution are studied in the Bering Sea during storm events. The ice and ice edge are incorporated into storm surge model. The interaction of wind, ice, and water is expressed by the normal and tangential stresses. A numerical grid is established for the Bering Sea, and a second refined grid is constructed for Norton Sound. Construction of open boundary condition...

This paper focuses upon recent annual national trends in racial segregation in professional occupations which are based on Current Population Survey (microdata) occupationand industry-specific distributions of employed black and white professionals for 1968-1979. Annual changes in the patterns of these trends are descripti~ely analyzed with the objective of exposing their implications to constr...

Three experiments investigated the use of interactive animation and virtual models to train a spatial visualization skill, the ability to represent the two-dimensional cross section of a three-dimensional object. Trained participants significantly outperformed controls and showed limited transfer to untrained stimuli. Results were interpreted with respect to three theoretical accounts of improv...

As we approach the 21st century, the issue of racial discrimination in sentencing continues to evoke controversy and spark debate. Some researchers contend that crimes by racial minorities are punished more harshly than similar crimes by equally culpable whites; others argue that racial disparities in sentence severity reflect differences in crime seriousness, prior criminal record, and other l...