Anterior Subluxation after Total Hip Replacement Confirmed by Radiographs: Report of Two Cases

Demonstrable anterior subluxation of the femoral head after a total hip arthroplasty is a rare complication and is usually transient. Both a case of recurrent subluxation and a case of chronic subluxation are described in this paper, each one presenting with unexpected femoral head eccentricity in the acetabulum on radiograph. We show how this unusual complication can be successfully identified and treated

The Changing Composition and Influence of Land-Based Groups: Evidence from Two Counties in Vermont

civic engagement, social capital, environmental policy

Variational bayes for estimating the parameters of a hidden Potts model

Hidden Markov random field models provide an appealing representation of images and other spatial problems. The drawback is that inference is not straightforward for these models as the normalisation constant for the likelihood is generally intractable except for very small observation sets. Variational methods are an emerging tool for Bayesian inference and they have already been successfully applied in other contexts. Focusing on the particular case of a hidden Potts model with Gaussian noise, we show how variational Bayesian methods can be applied to hidden Markov random field inference. To tackle the obstacle of the intractable normalising constant for the likelihood, we explore alternative estimation approaches for incorporation into the variational Bayes algorithm. We consider a pseudo-likelihood approach as well as the more recent reduced dependence approximation of the normalisation constant. To illustrate the effectiveness of these approaches we present empirical results from the analysis of simulated datasets. We also analyse a real dataset and compare results with those of previous analyses as well as those obtained from the recently developed auxiliary variable MCMC method and the recursive MCMC method. Our results show that the variational Bayesian analyses can be carried out much faster than the MCMC analyses and produce good estimates of model parameters. We also found that the reduced dependence approximation of the normalisation constant outperformed the pseudo-likelihood approximation in our analysis of real and synthetic datasets

Henri Temianka Correspondence; (mcgrory)

https://digitalcommons.chapman.edu/temianka_correspondence/2367/thumbnail.jp

Did the Bologna Process contribute to improving international students’ success rates in Germany’s HEIs? Twenty years of success rates in Germany: how the Bologna Process impacts on the success rates of International and German students

[EN] Low success rates are a thorn in the side of any Higher Education Institute (HEI). With increasing aspirations of attracting international students to Germany (HRK 2020), the international students’ success rates are worthy of a review. For it reflects on how internationalisation processes, such as the Bologna Process, impact on success rates and whether the changing structures attract international students. We used the German administrative data, covering twenty years, to create this cross-cohort analysis of student success rates. By creating a common finishing point-in-time, the combined success rates of diplom and bachelor students in mechanical engineering show that the synchronised success rates for the increasing number of international students are not just comparable, but better than those of the German students.Mcgrory, M. (2020). Did the Bologna Process contribute to improving international students’ success rates in Germany’s HEIs? Twenty years of success rates in Germany: how the Bologna Process impacts on the success rates of International and German students. En 6th International Conference on Higher Education Advances (HEAd'20). Editorial Universitat Politècnica de València. (30-05-2020):785-792. https://doi.org/10.4995/HEAd20.2020.1114478579230-05-202

The Greening of Social Capital: An Examination of Land-Based Groups in Two Vermont Counties

By undertaking a census of all agricultural, outdoor recreational, and environmental groups (land-based groups) in two adjacent counties in Vermont, we demonstrate the dramatic increase of local environmental groups in the last 15 years. Building on the methodologies of Kempton et al. (2001), we first show that official lists of nonprofit groups-from the Vermont Secretary of State, the Internal Revenue Service, and local grassroots directories-significantly undercount local environmental groups. Second, we show that since the mid-1980s, the number and membership roles of local autonomous environmental groups have grown rapidly relative to all other types of local and non-local land-based groups in these counties. This article provides preliminary evidence of the recent "greening of social capital."civic engagement, social capital, environmental policy

Local Environmental Groups, the Creation of Social Capital, and Environmental Policy: Evidence from Vermont

Scholars who have studied local environmental groups and their effects in the United States have tended to agree about three related, stylized facts: that such groups are widespread, that they are pursuing a diverse set of activities, and, at least implicitly, that they are creating social capital that significantly affects environmental policy and outcomes. However, a healthy skepticism of these claims among academics and within the policy community exists due to a lack of significant data to verify them. In this article, (1) we collect and interpret data to demonstrate, in two counties of central Vermont, that local environmental groups are indeed pursuing a diverse set of activities, developing a typology of these groups based on their main focus; (2) we show the groups are developing and maintaining social capital; and (3) we illustrate how these methodologies can enhance the literature on local environmental groups by testing claims about the extent and influence of these groups.local environmental groups, social capital, local organizations, Vermont

Don’t underestimate the power of the Pen

The concept of attendance relates to the identification of a person (attendee) being present at a specific event. Common examples of attendance logs are role calls, swipe cards or sign-in sheets. The act of collecting attendance merely identifies who attended the event, nothing more. So, could an attendance mechanism be leveraged to be more engaging? Is it possible for an attendance framework to be developed to persuade attendees to have a higher level of engagement in a low cost, ethical and efficient way? This research proposes that through carefully engaging human factors, it is possible to provide a framework, where the attendee believes they are more in control, feels a comforting, supportive sense of belonging to a group, have a sense of inner competitiveness, and as a result could be encouraged to attend events more frequently

Riot: Community Organizations and Public Communication Following Crown Heights and Tompkins Square

This is a qualitative study of the extent to which community organizations reclaimed public space in the face of community conflict and the mechanisms by which they did so, in the case of the Crown Heights and Tompkins Square Park riots. Six community organizers, activists and residents took part in semi-structured interviews regarding safety, ownership, public space and community organizations in their neighborhoods. Media in the form of newspaper articles and op-ed’s were also utilized to gauge the public discourse surrounding the riots and how the communities were able to represent themselves. The research uses a communicative planning theory approach to the issues of conflict and community organizing, and exposes opportunities planners can take advantage of in order to assist communities in representing themselves and minimizing conflict