Integral equation for inhomogeneous condensed bosons generalizing the Gross-Pitaevskii differential equation

We give here the derivation of a Gross-Pitaevskii--type equation for inhomogeneous condensed bosons. Instead of the original Gross-Pitaevskii differential equation, we obtain an integral equation that implies less restrictive assumptions than are made in the very recent study of Pieri and Strinati [Phys. Rev. Lett. 91 (2003) 030401]. In particular, the Thomas-Fermi approximation and the restriction to small spatial variations of the order parameter invoked in their study are avoided.Comment: Phys. Rev. A (accepted

Two houses and the pain of separation in Tamang narratives from highland Nepal

At stake in my presentation are two central reflections. First is the question of whether or not power and resistance, hegemony and autonomy, interact in the same way between women and men, and more specifically between contemporary Tamang men and women from central highland Nepal, as has been described between colonial authorities and local peoples in wider South Asia. To the extent that gendered and other forms of domination are not isomorphic, of course, an important subsidiary question arises: if present understandings of colonialism and postcoloniality are inadequate to disassemble gender, then, is this more because gender is different, or more because subaltern studies are inadequate?Issue title; "South Asian Oral Traditions.

Exploring customer trust and relationships in the online environment

This thesis presents eleven selected publications concerning trust and relationships in the online environment. The evolution of the research over ten years showcases the author’s dedication to the practical application of marketing for the benefit of organisations and individuals alongside contribution to academic knowledge. The advent of new technology by way of the internet has added a new dimension to the complexity of marketing strategy and, from a practical point of view, marketers need to incorporate cutting edge technology into their strategic thinking. Existing literature at the time that the author started this research was at the nascent stage and over the period of the research, it became obvious that technology could be used as a tool to help build relationships. Conversely, customers demonstrated varying degrees of trust in both the technologies and the organisations using online-based tools. It became essential, therefore, for organisations to appear trustworthy in order for customers to engage with online marketing platforms and subsequently entrust their purchasing activities to the online environment. The research appraised in this thesis makes a significant contribution to knowledge about marketing in the online environment and the implications of engendering consumer trust. Six key contributions to knowledge are claimed as a result of this work. Firstly, a framework for using online marketing strategically has been developed. Secondly, an analysis of how online marketing fits into the traditional marketing framework is provided. Thirdly, the author introduces the notion that trust in a brand influences online behaviour by reducing perceived risk, leading to consumers committing to online purchasing. Fourthly, online brand elements used to create credibility of a B2B brand are identified. Fifthly, the author presents an identification of how structural elements of websites can be utilized to differentiate online brands from competitors’ offerings. Finally, the author puts forward the proposition that marketers can learn from relatiaonships between contributors to online social networks. The researcher has utilised a variety of deliberately chosen methodologies, most of which are qualitative. The thesis also contains three secondary contributions related to research design. These are the use of a bought-in, permission-based email list, the innovative use of netnography to elicit rich data from online discussion forums and, finally, content analysis of websites. The work concludes by offering eight recommendations for future research directions

Practical dispersion relations for strongly coupled plasma fluids

Very simple explicit analytical expressions are discussed, which are able to describe the dispersion relations of longitudinal waves in strongly coupled plasma systems such as one-component plasma and weakly screened Yukawa fluids with a very good accuracy. Applications to other systems with soft pairwise interactions are briefly discussed.Comment: 11 pages, 3 figures; Related to arXiv:1711.0615

Mutual information between geomagnetic indices and the solar wind as seen by WIND : implications for propagation time estimates

The determination of delay times of solar wind conditions at the sunward libration point to effects on Earth is investigated using mutual information. This measures the amount of information shared between two timeseries. We consider the mutual information content of solar wind observations, from WIND, and the geomagnetic indices. The success of five commonly used schemes for estimating interplanetary propagation times is examined. Propagation assuming a fixed plane normal at 45 degrees to the GSE x-axis (i.e. the Parker Spiral estimate) is found to give optimal mutual information. The mutual information depends on the point in space chosen as the target for the propagation estimate, and we find that it is maximized by choosing a point in the nightside rather than dayside magnetosphere. In addition, we employ recurrence plot analysis to visualize contributions to the mutual information, this suggests that it appears on timescales of hours rather than minutes

Sporadic occurrence of hemorrhagic colitis associated with Escherichia coli O157:H7 in Newfoundland

During a 9-month period in 1984, 113 fecal samples obtained from 92 patients with diarrheal illness were cultured for Escherichia coli serotype O157:H7 to determine the occurrence of this agent in diarrheal illness in Newfoundland. E. coli O157:H7 was isolated in almost pure culture from 12 stool specimens obtained from 7 (15%) of the 47 patients who had grossly bloody diarrhea; none of the 12 yielded any of the usual enteric pathogens. The agent was not isolated from the stool specimens obtained from the remaining 45 patients, who did not have bloody diarrhea. All seven patients whose specimens were positive for E. coli O157:H7 had clinical manifestations typical of hemorrhagic colitis, but the syndrome was clinically suspected and a specific test requested in only two cases. The seven cases were not clustered geographically or temporally, and no common exposure was identified. To determine whether hamburger meat was the source of E. coli O157:H7, 66 samples obtained from various retail outlets were tested; none were found to be positive. Hemorrhagic colitis may be a common disease, and E. coli O157:H7 should be considered as an agent in bloody diarrheal illness