ASCA solid state imaging spectrometer observations of O stars

We report ASCA Solid State Imaging Spectrometer (SIS) x-ray observations of the O stars delta Ori and lambda Ori. The energy resolution of the SIS allows us to resolve features in the O star x-ray spectra which are not apparent in spectra obtained by x-ray spectrometers with lower energy resolution. SIS spectra from both stars show evidence of line emission, suggesting the thermal nature of the x-ray source. However, the observed line strengths are different for the two stars. The observed stellar x-ray spectra are not well described by isothermal models although absorbed thermal emission models with two or more temperatures can provide an adequate fit to the data. For both stars we present evidence of absorbing columns significantly larger than the known ISM columns, indicative of absorption by a circumstellar medium, presumably the stellar winds. In addition, the lambda Ori spectrum shows the presence of emission at energies greater than 3 keV which is not seen in the delta Ori spectrum

Experimental determination of B-T phase diagram of YBa_2Cu_3O_7-d to 150T for B perpendicular to c

The B-T phase diagram for thin film YBa_2Cu_3O_7-d with B parallel to the superconducting layers has been constructed from GHz transport measurements to 150T. Evidence for a transition from a high T regime dominated by orbital effects, to a low T regime where paramagnetic limiting drives the quenching of superconductivity, is seen. Up to 110T the upper critical field is found to be linear in T and in remarkable agreement with extrapolation of the longstanding result of Welp et al arising from magnetisation measurements to 6T. Beyond this a departure from linear behaviour occurs at T=74K, where a 3D-2D crossover is expected to occur.Comment: 4 pages, 4 figure

Reimagining and Rewriting the Guantánamo Bay Detainee Library: Translation, Ideology, and Power

The main argument of this thesis is that the rewriters of the story of the Guantánamo Bay Detainee Library, namely journalists and filmmakers, engage differently with primary source material about the detention facility; what they omit and include in their narratives varies and depends largely on their pre-established ideologies. In the field of translation studies, this thesis contributes a new case study; it considers the problematic interplay between law, libraries, and multilingual information access in detention facilities. My research also demonstrates the challenges of examining a library that belongs to a highly controversial military system. In the first chapter I review previous studies of detainee libraries, and I introduce the concepts of rewriting, power, patronage, and ideology. In the second chapter I evaluate how reading material is unevenly distributed across nineteen language groups in the Guantánamo Bay Detainee Library. In the third chapter I reflect on the ways in which news articles written by civilian and military journalists about the Guantánamo Bay Detainee Library are rooted in disparate ideologies. In the fourth chapter I parse the story of the Guantánamo Bay Detainee Library as it is told through the fictitious lens of the film Camp X-Ray (2014). In the fifth and final chapter I summarize the logistical challenges of studying the Guantánamo Bay Detainee Library from afar and imagine what future might await its books

Disaggregating composite food codes in the UK National Diet and Nutrition Survey food composition databank

Objective: To disaggregate composite food codes used in the UK National Diet and Nutrition Survey (NDNS) into their individual food components in order to provide a more complete estimate of intake at the individual food level. Methods: A total of 3216 composite food codes from the NDNS food composition databank were subject to disaggregation. The main food components used were meat, fish, fruit, vegetables and cheese, which were further divided into 26 subcategories. Results: It was shown that previous determination of meat containing composite food codes provided an overestimate of meat intake and underestimate of additional components such as fruit and vegetables. Conclusions: By incorporating disaggregated data into NDNS, variations will be seen in consumption of some main food groups, but these variations may be also attributable to trends in consumption. European Journal of Clinical Nutrition (2010) 64, S32-S36; doi:10.1038/ejcn.2010.207Peer reviewe