Generating Static Fluid Spheres by Conformal Transformations

We generate an explicit four-fold infinity of physically acceptable exact perfect fluid solutions of Einstein's equations by way of conformal transformations of physically unacceptable solutions (one way to view the use of isotropic coordinates). Special cases include the Schwarzschild interior solution and the Einstein static universe. The process we consider involves solving two equations of the Riccati type coupled by a single generating function rather than a specification of one of the two metric functions.Comment: 4 pages revtex4, two figures, Final form to appear in Phys. Rev.

How to effectively design and create a concept mobile application to aid in the management of type 1 diabetes in adolescents

Diabetes is one of the eight most prevalent chronic health conditions in the World; therefore there is a wide range of diabetes-related mobile applications available to the public to aid in glycaemic control and self-management. Statistically, adherence to medication is extremely low in adolescents with Type 1 Diabetes Mellitus (T1DM), therefore it is crucial that adolescents adhere to their medication from a young age and adopt good medication regimes. This paper focuses on the research and design of an interactive and educational concept mobile application aimed at adolescents, aged 11 to 16 years old, to aid in their understanding of T1DM. As visual elements are an essential part to the design of a mobile application, this research outlines how the visual components of the application were designed specifically for the target audience of adolescents with T1DM

Stasis and Change in Federal Policy, Regional Texts, and Curriculum: Moving Forward

“Native Americans lost control of their land.. .due to the expansion of a country.” “Indians are now living the kind of lives we expect of 20th century Americans.” Although it would be easy and preferable to believe that the previous two quotes were from the early twentieth century when stereotypes and racialized history were more prevalent, in truth the quotes come from Dale Lambert’s elementary school textbook Washington: A State of Contrast published in 2005. Lambert and many of his contemporaries have continued to treat the history of Native Americans in the Pacific Northwest in a way that discredits their involvement, either by making them absent in the historical text, presenting them as victims of whites and societal advancement, or by portraying Indians as episodes in white history. Lambert’s text therefore presents us with a troubling question: Why has the curriculum and education about Indians remained seemingly unchanged? This seeming stasis within the regional curriculum in many ways is contrary to the slow evolution and progression that occurred within historical scholarship and federal Indian policy, including federal Indian Education policy. Examining curricular change alongside policy and scholarship change demonstrates how far curricular change has lagged behind

Scottish Punk

The inspiration for the ensemble was derived from an interaction with a participant in a dissertation study on kilt making currently being conducted. Scotland has always had a strong sense of heritage, and kilts and tartan are iconic components of the culture (Loranger, 2014). During the difficult economic times that typified the 1970s and part of the 1980s in the United Kingdom (U.K.), punk was a counter-culture movement born out of disenfranchised youths\u27 frustrations (Cartlidge, n.d.). In Scotland and beyond, the kilt and punk rock iconography was a semiotic vehicle to convey feelings of discontent. The purpose of the three pieces created in this ensemble, Scottish Punk, is an attempt to encapsulate some of the visual imagery and messages of the punk time period. The designer utilized experiences and observations recorded during the creation of the ensemble to inform the semiotic and construction aspects of their dissertation study

Did Gold Remain Relevant in the Post-1971 International Monetary System?

The central hypothesis to be tested is the relevance of gold in the determination of the value of the US dollar as an international reserve currency after 1971. In the first section the market value of the US dollar is analysed by looking at new forms of value (financial derivative products), the dollar as a safe haven, the choice of a standard of value and the role of SDRs in reforming the international monetary system. Based on dimensional analysis, the second section analyses the definition and meaning of a numéraire for international currency and the justification for a variable standard of value based on a commodity (gold). The second section is the theoretical foundation for the empirical and econometric analysis in the third and fourth sections. The third section is devoted to the specification of an econometric model and a graphical analysis of the data. It is clear that an inverse relation exists between the value of the US dollar and the price of gold. The fourth section shows the estimations of the different specifications of the model including linear regression and cointegration analysis. The most important econometric result is that the null hypothesis is rejected in favour of a significant link between the price of gold and the value of the US dollar. There is also a positive relationship between gold price and inflation. An inverse statistically significant relation between gold price and monetary policy is shown by applying a dynamic model of cointegration with lags

La théorie néo-classique de la demande de capital : problèmes théoriques de spécification

This paper is a critique of the neoclassical theory of investment behavior advanced by Jorgenson and others. The main conclusions are as following