Spontaneous Isotropy Breaking: A Mechanism for CMB Multipole Alignments

We introduce a class of models in which statistical isotropy is broken spontaneously in the CMB by a non-linear response to long-wavelength fluctuations in a mediating field. These fluctuations appear as a gradient locally and pick out a single preferred direction. The non-linear response imprints this direction in a range of multipole moments. We consider two manifestations of isotropy breaking: additive contributions and multiplicative modulation of the intrinsic anisotropy. Since WMAP exhibits an alignment of power deficits, an additive contribution is less likely to produce the observed alignments than the usual isotropic fluctuations, a fact which we illustrate with an explicit cosmological model of long-wavelength quintessence fluctuations. This problem applies to other models involving foregrounds or background anisotropy that seek to restore power to the CMB. Additive models that account directly for the observed power exacerbate the low power of the intrinsic fluctuations. Multiplicative models can overcome these difficulties. We construct a proof of principle model that significantly improves the likelihood and generates stronger alignments than WMAP in 30-45% of realizations.Comment: 13 pages, 10 figure

Sipping Fuel and Saving Lives: Increasing Fuel Economy without Sacrificing Safety

Demonstrates how new fuel-efficiency technologies make it possible, and advisable, to significantly increase the fuel economy of motor vehicles without compromising their safety

A Field Study: The Business Of Engaging Higher Education Adjunct Faculty

Competition among higher educational institutions has increased especially among public and private institutions; this is exacerbated by demographic changes whereby the number of high school graduates continues to decrease. Additionally, colleges and universities face daunting competition challenges retaining students; therefore, they are reexamining their long-established business models. As a result, to offset costs, higher education institutions continue to increase the hiring of adjunct faculty. Currently, adjunct instructors account for more than half of all faculty appointments and that number is expected to increase. To amplify the situation, college and university accreditation organizations are requiring student retention and faculty work engagement as part of the effectiveness and accreditation process. Customarily, compared to full-time faculty, adjunct faculty are less engaged with their work as effective coaches and mentors for students outside the classroom. Thus, a quantitative study using the Utrecht Work Engagement Scale questionnaire sought adjunct faculty feedback in terms of engagement with their work for academic and student success and how the results could be used to increase this engagement

What Factors Are Related to Medical Students’ and Doctors’ Attitudes Towards Older Patients?

Background: Studies have sought to determine the possible precursors to medical students’ and doctors’ positive or negative attitudes towards older patients by examining associations with a variety of demographic, educational/training, and job/career factors. A review is now needed to explore the quality of these studies and to synthesize findings. Methods: A systematic review on the worldwide English language literature was conducted. Ten databases were explored (including Medline, PsychInfo and Science Direct) from database inception to December 2015 using a systematic search strategy. Quality was assessed and reported. Results: The search identified 2332 articles; 37 studies met the eligibility criteria. Students’ year in medical school, doctors’ years of practice or seniority, participants’ age and ethnicity did not appear to demonstrate relationships with (positive or negative) attitudes towards older patients. Ten studies reported that female medical students and/or doctors reported significantly more positive attitudes towards older patients than their male counterparts, although 18 studies found no differences. No studies reported more positive attitudes scores for males than females. Interest in working in older patient settings and reporting a high level of intrinsic motivation for choosing medicine as a career were both associated with positive attitudes towards older patients. Eight of 11 studies found more positive attitudes were reported by those who demonstrated higher levels of knowledge about ageing but this apparent relationship is questioned here due to methodological issues identified in the quality assessment stage pertaining to the knowledge measures employed. Reliability and validity of the attitude measures, that were employed, were examined. Conclusions: This article has identified factors associated with medical students’ and doctors’ positive attitudes towards older patients, as well as factors which have been extensively studied but failed to demonstrate meaningful relationships with attitudes. This is the first study to identify that the relationship between attitudes and knowledge about ageing may be a methodological artefact. Future research can build on the relationships identified here and should employ appropriate measures of attitudes with demonstrated reliability and validity

A Field Study: The Business Of Engaging Higher Education Adjunct Faculty

Competition among higher educational institutions has increased especially among public and private institutions; this is exacerbated by demographic changes whereby the number of high school graduates continues to decrease. Additionally, colleges and universities face daunting competition challenges retaining students; therefore, they are reexamining their long-established business models. As a result, to offset costs, higher education institutions continue to increase the hiring of adjunct faculty. Currently, adjunct instructors account for more than half of all faculty appointments and that number is expected to increase. To amplify the situation, college and university accreditation organizations are requiring student retention and faculty work engagement as part of the effectiveness and accreditation process. Customarily, compared to full-time faculty, adjunct faculty are less engaged with their work as effective coaches and mentors for students outside the classroom. Thus, a quantitative study using the Utrecht Work Engagement Scale questionnaire sought adjunct faculty feedback in terms of engagement with their work for academic and student success and how the results could be used to increase this engagement