W production at large transverse momentum at the Large Hadron Collider

We study the production of W bosons at large transverse momentum in pp collisions at the Large Hadron Collider (LHC). We calculate the complete next-to-leading order (NLO) corrections to the differential cross section. We find that the NLO corrections provide a large increase to the cross section but, surprisingly, do not reduce the scale dependence relative to leading order (LO). We also calculate next-to-next-to-leading-order (NNLO) soft-gluon corrections and find that, although they are small, they significantly reduce the scale dependence thus providing a more stable theoretical prediction.Comment: 12 pages, 7 figure

Inheritance of resistance to blackeye cowpea mosaic and cowpea aphid-borne mosaic viruses in Phaseolus vulgaris

In populations from crosses of resistant and susceptible plants of the bean (Phaseolus vulgaris) cultivar Black Turtle Soup, resistance to blackeye cowpea mosaic virus (BICMV) and to cowpea aphidborne mosaic virus (CAbMV) was conferred independently by single dominant factors that appear to be closely linked. The symbol Bcm was assigned to the gene for BICMV resistance and Cam to that for CAbMV. Linkage was determined by separately inoculating plants of the testeross with both viruses on different leaves. Since BICMV and CAbMV Incite identical symptoms, but do not cross protect against each other, their presence in each susceptible plant was determined by enzyme-linked immunosorbent assay (ELISA). This detection method was highly specific because the two viruses are distantly related serologically. The normally resistant plants responded with a lethal systemic hypersensitive reaction when approach-grafted to BICMV or CAbMV-infected plants, or when mechanically in oculated and held constantiy at 35°

Absolute calibration of GafChromic film for very high flux laser driven ion beams.

We report on the calibration of GafChromic HD-v2 radiochromic film in the extremely high dose regime up to 100 kGy together with very high dose rates up to 7 × 1011 Gy/s. The absolute calibration was done with nanosecond ion bunches at the Neutralized Drift Compression Experiment II particle accelerator at Lawrence Berkeley National Laboratory (LBNL) and covers a broad dose dynamic range over three orders of magnitude. We then applied the resulting calibration curve to calibrate a laser driven ion experiment performed on the BELLA petawatt laser facility at LBNL. Here, we reconstructed the spatial and energy resolved distributions of the laser-accelerated proton beams. The resulting proton distribution is in fair agreement with the spectrum that was measured with a Thomson spectrometer in combination with a microchannel plate detector

Inheritance of resistance to blackeye cowpea mosaic virus in Vigna unguiculata

Abstract: Crosses between the resistant cowpea line TVU 2480 obtained from the International Institute of Tropical Agriculture (llTA), Ibadan, Nigeria and the susceptible domestic cultivar Early Ramshorn were used to determine the inheritance of resistance to blackeye cowpea mosaic virus (B1CMV). Evaluation of F1, F2, and reciprocal backcross populations by symptomatology and enzyme-linked immunosorbent assay (ELISA) clearly indicated that a single recessive gene controls the high level of resistance. The symbol bcm (blackeye cowpea mosaic) is assigned to this factor. llTA cowpea lines TVU 2740, TVU 3273, TVU 2657, and TVU 2845 seem to possess this same gen

Experiment K-6-03. Gravity and skeletal growth, part 1. Part 2: Morphology and histochemistry of bone cells and vasculature of the tibia; Part 3: Nuclear volume analysis of osteoblast histogenesis in periodontal ligament cells; Part 4: Intervertebral disc swelling pressure associated with microgravity

Bone area, bone electrophysiology, bone vascularity, osteoblast morphology, and osteoblast histogenesis were studied in rats associated with Cosmos 1887. The results suggest that the synchronous animals were the only group with a significantly larger bone area than the basal group, that the bone electrical potential was more negative in flight than in the synchronous rats, that the endosteal osteoblasts from flight rats had greater numbers of transitional Golgi vesicles but no difference in the large Golgi saccules or the alkaline phosphatase activity, that the perioteal vasculature in the shaft of flight rats often showed very dense intraluminal deposits with adjacent degenerating osteocytes as well as lipid accumulations within the lumen of the vessels and sometimes degeneration of the vascular wall (this change was not present in the metaphyseal region of flight animals), and that the progenitor cells decreased in flight rats while the preosteoblasts increased compared to controls. Many of the results suggest that the animals were beginning to recover from the effects of spaceflight during the two day interval between landing and euthanasia; flight effects, such as the vascular changes, did not appear to recover

A qualitative exploration of cardiovascular health and disease messages surrounding Canadian and U.S. campaigns through Facebook and Twitter

Cardiovascular disease (CVD) is the leading cause of death and disability among Canadian and U.S. women. A majority of Canadian and U.S. women are unaware of their CVD risk profiles, symptoms of acute cardiac events, and take inadequate action to lower their risk. There is limited understanding regarding the meanings associated with Canadian and U.S. cardiovascular health campaign messages and user interactivity with these messages on social media. Filling in this knowledge gap contributes to understanding how women’s beliefs and behaviours are shaped by prevalent mass media forums, which construct certain portrayals of women’s disease, risk, and health-related identities. Within this doctoral dissertation, four studies were conducted in order to explore the media’s role in the social construction of CVD meanings. In the first study, a metasynthesis was conducted of primary research findings regarding qualitative analyses of mass media narratives surrounding women’s CVD in Canada and the U.S. Key findings included two critical, transcendental themes: 1) the medicalized culture of women’s CVD risk, and 2) the feminization of cardiovascular healthism. The second study was an ethnographic content analysis of the portrayals of women’s cardiovascular risk and health identities on Facebook page narratives of the Heart and Stroke Foundation of Canada (HSFC). An overarching theme of philanthropy as an act of women’s health promotion was identified and three sub-themes: 1) a culture of consumerism for women’s health promotion, 2) the cardiovascular systems of women as sites of fear and dependence, and 3) women’s CVD risk, acute events, and treatment as shared, community experiences. The third study used critical discourse analysis to explore the Facebook page of U.S. women’s cardiovascular health promotion agency Women’s Heart Alliance to investigate the discourses through which women’s CVD was portrayed, and the implications of these discourses on the construction of subject positions for related social agents. iv Women’s CVD was constructed within two central discourses: a discourse of achieving health equity and a discourse of healthism. These discourses intersected to construct the subject positions of altruistic fighters, health activists, and compliant patients and consumerists. The fourth study comprised a critical discourse analysis of the HSFC More Moments campaign meanings on Twitter for men and women. CVD risk was portrayed through a discourse of tragedy and loss, and a discourse of life and health, which constructed the subject positions of visionary leaders, selfless humanitarians, and successful survivors. Collectively, the findings of these four studies build upon understandings of the media’s nuanced contributions to gendered constructions of CVD meanings and risk.Doctor of Philosophy (Ph.D.) in Human Studie