Gibbs Samplers for a Set of Seemingly Unrelated Regressions

Bayesian estimation of a collection of seemingly unrelated regressions, referred to as a ‘set of seemingly unrelated regressions’ is considered. The collection of seemingly unrelated regressions is linked by common coefficients and/or a common error covariance matrix. Gibbs samplers useful for estimating posterior quantities are described and applied to two examples – a set of linear expenditure functions and a cost function and share equations from production theory.

Chop Suey Habits: the State of the American Chinese Restaurant during Covid Times

With the outbreak of COVID-19 in Spring 2020, the yellow peril has come back from its clandestine hiding spot with attention directed towards East and Southeast Asian citizens. In the ongoing debate of cleanliness and sanitization during a pandemic, the yellow peril scare has once again American Chinese restaurants. American Chinese restaurants found themselves to be the target of online abuse and loss of patronage in these uncertain times. While over half of American Chinese restaurants took the loss and shut down in March/April 2020, they still reopened to partial to full capacity sometime in 2020. American Chinese restaurant owners knew that there were many vocal anti-Chinese sentiments, yet they still made the choice to reopen in spite of the abusive attitudes. I argue that American Chinese restaurant owners made the choice to reopen because of financial reasons and the communities that they serve. I also argue that non American Chinese people have used American Chinese food as an avenue for racist attitudes directed towards American Chinese people that has been exacerbated by the onset of COVID-19

Measuring Poverty and Inequality from Highly Aggregated Small Area Data: The Changing Fortunes of Latrobe Valley Households

The Latrobe Valley generates 85% of Victoria's electricity. The progressive privatisation of the electricity industry between 1989 and 1997, had a lasting effect on income distribution in the region. This paper investigates the change in income level, inequality and poverty for this region between 1986 and 2006. To circumvent data availability issues, we propose a general method of using aggregated data to obtain regional income distributions. We find that in 1986 Latrobe Valley incomes were well above other non-metropolitan areas while inequality measures were relatively low. Mean income subsequently dropped below comparable locations while inequality rose. Although income levels had partially recovered by 2006, inequality measures continued to rise.Poverty, inequality, restructure, privatization, small-area income distribution.

CARDS: A Collaborative Community Model for Faculty Development or an Institutional Case Study of Writing Program Administration

The structure of writing programs evolves to account for the transformation of composition studies. Online and dual credit programs necessitate a need to adjust prior practices initially geared towards face-to-face pedagogy; however, several challenges surface in online and dual credit writing programs. The most prevalent is that these online courses are primarily staffed by non-tenured faculty, including adjuncts who do not have a physical presence on campus. The faculty dynamic presents many challenges when attempting to garner participation in collaborations. In recent years, the Writing Program Administrator (WPA) at a regional public university noticed a need to improve faculty morale, satisfaction, and participation, especially with the emergence of online programs. Through a national survey and selective interviews of current faculty at the university, we determined that the answer lies in the structure of the program. The Writing Program Administrator has several models to choose from, but we will argue that the collaborative community model is most conducive to addressing and enhancing faculty morale, satisfaction, and participation in first-year writing programs

A Study of Technology Implementation in Two School Districts: The Dynamics of Leadership and Change

This qualitative case study investigated the role administrative leadership plays in organizational change related to the infusion of technology into district programs and pedagogical practices. School districts have been engaged in a struggle to incorporate new generations of technological advancements in meaningful ways for their students. Instructional reform and measurable performance-based outcomes are frequently conflated with the pressure to implement effective technology programs that ensure the No Child Left Behind federal mandates are met while ensuring judicious use of district funds. While technology has the potential to transform the educational process, it must align with the cultural uniqueness of the local learning community. This study investigated how educators, who are committed to technology programs in schools, dealt with differing attitudes, beliefs, interests, and aptitudes for change. The study used leadership research to examine two school districts, one rural and one suburban, that have undergone significant changes by infusing technology into their curriculum. It examined their staff development approaches and garnered insight about how to accomplish such a change in a responsible, forward-thinking way. Qualitative research methods were used to examine how leadership, change, and staff development might be related and how individuals dealt with change. The findings suggested that: (a) educators should understand that there is more than one way to implement successful technology programs, (b) leadership can play a significant role in the change and staff development efforts, and (c) staff development programs should involve support activities among the members of the learning community. This case study provides the basis for further investigation into how supportive relationships and collaborative efforts help individuals create learning communities that can effectively embrace organizational changes

Vermonters’ Opinions on Low-Dose CT Lung Cancer Screening

Introduction: Lung cancer is the number one cause of cancer death among men and women in Vermont and the United States. Smoking increases the risk of lung cancer—nearly 90% of lung cancer is due to smoking. Frequently, lung cancers do not present clinically until they are advanced stage and therefore prognosis is poor. However, if detected early lung cancers are more operable and patients have better outcomes. In December 2013 the US Preventive Services Task Force released new guidelines for lung cancer screening among current and former smokers ages 55 to 80. It is recommended that current and former (within 15 years of quitting) smokers of 30 pack years receive an annual low-dose CT scan. The objective of this project was to assess the level of knowledge and attitudes towards lung cancer screening with low-dose CT scanning among Vermonters in the Burlington area.https://scholarworks.uvm.edu/comphp_gallery/1205/thumbnail.jp

Utility of 2013 American College of Cardiology/American Heart Association Cholesterol Guidelines in HIV-Infected Adults With Carotid Atherosclerosis.

BackgroundAlthough HIV is associated with increased atherosclerotic cardiovascular disease (CVD) risk, it is unknown whether guidelines can identify HIV-infected adults who may benefit from statins. We compared the 2013 American College of Cardiology/American Heart Association and 2004 Adult Treatment Panel III recommendations in HIV-infected adults and evaluated associations with carotid artery intima-media thickness and plaque.Methods and resultsCarotid artery intima-media thickness was measured at baseline and 3 years later in 352 HIV-infected adults without clinical atherosclerotic CVD and not on statins. Plaque was defined as IMT >1.5 mm in any segment. At baseline, the median age was 43 (interquartile range, 39-49), 85% were men, 74% were on antiretroviral medication, and 50% had plaque. The American College of Cardiology/American Heart Association guidelines were more likely to recommend statins compared with the Adult Treatment Panel III guidelines, both overall (26% versus 14%; P<0.001), in those with plaque (32% versus 17%; P=0.0002), and in those without plaque (16% versus 7%; P=0.025). In multivariable analysis, older age, higher low-density lipoprotein cholesterol, pack per year of smoking, and history of opportunistic infection were associated with baseline plaque. Baseline IMT (hazard ratio, 1.18 per 10% increment; 95% confidence interval, 1.05-1.33; P=0.005) and plaque (hazard ratio, 2.06; 95% confidence interval, 1.02-4.08; P=0.037) were each associated with all-cause mortality, independent of traditional CVD risk factors.ConclusionsAlthough the American College of Cardiology/American Heart Association guidelines recommended statins to a greater number of HIV-infected adults compared with the Adult Treatment Panel III guidelines, both failed to recommend therapy in the majority of HIV-affected adults with carotid plaque. Baseline carotid atherosclerosis but not atherosclerotic CVD risk scores was an independent predictor of mortality. HIV-specific guidelines that include detection of subclinical atherosclerosis may help to identify HIV-infected adults who are at increased atherosclerotic CVD risk and may be considered for statins