Leaving the Lecture Hall: Conducting HF/E Outside the Classroom

Georgia Tech HF/E students initiated and managed a multisemester project to experience the nuances of conducting HF/E outside the classroom setting. This article focuses on the lessons learned beyond the classroom: project management, team coordination, communication with non-HF/E team members, application of research methods, and integration of data to prioritize and guide design changes. The goal of this article is to help guide other HF/E students and educators when implementing similar projects by providing the lessons we learned from this experience

Combining Substrate Specificity Analysis with Support Vector Classifiers Reveals Feruloyl Esterase as a Phylogenetically Informative Protein Group

Our understanding of how fungi evolved to develop a variety of ecological niches, is limited but of fundamental biological importance. Specifically, the evolution of enzymes affects how well species can adapt to new environmental conditions. Feruloyl esterases (FAEs) are enzymes able to hydrolyze the ester bonds linking ferulic acid to plant cell wall polysaccharides. The diversity of substrate specificities found in the FAE family shows that this family is old enough to have experienced the emergence and loss of many activities. In this study we evaluate the relative activity of FAEs against a variety of model substrates as a novel predictive tool for Ascomycota taxonomic classification. Our approach consists of two analytical steps; (1) an initial unsupervised analysis to cluster the FAEs substrate specificity data which were generated by cultivation of 34 Ascomycota strains and then an analysis of the produced enzyme cocktail against 10 substituted cinnamate and phenylalkanoate methyl esters, (2) a second, supervised analysis for training a predictor built on these substrate activities. By applying both linear and non-linear models we were able to correctly predict the taxonomic Class (∼86% correct classification), Order (∼88% correct classification) and Family (∼88% correct classification) that the 34 Ascomycota belong to, using the activity profiles of the FAEs. The good correlation with the FAEs substrate specificities that we have defined via our phylogenetic analysis not only suggests that FAEs are phylogenetically informative proteins but it is also a considerable step towards improved FAEs functional prediction.published_or_final_versio

Of saints, sows or smiths? Copper-brazed iron handbells in Early Medieval England

Copper-brazed iron handbells were a distinctive feature of monastic life in Early Medieval Ireland, Scotland and Wales. Handbells were used in liturgy, prayer, worship, and later as reliquaries. In England, brazed bells of the 7th to 9th centuries take on a greater range of sizes and forms and are found on a wider variety of sites. As a consequence, their roles within Christianity have been questioned, and associations with animals and itinerant smiths have been emphasised instead. Recent archaeological investigation of an Anglo-Saxon marsh-island at Little Carlton, Lincolnshire has resulted in one of the largest assemblages of copper-brazed iron bells from any site in England, comparable to similar collections from Flixborough and Brandon. Taking into consideration the inclusion of brazen bells in some ritualistic ‘closure hoards’, this paper argues that whilst Anglo-Saxon plain iron bells may have fulfilled a range of profane functions, those that were copper-brazed, regardless of their size, were important objects amongst early Christian communities in England, and the Northumbrian church in particular

‘This Is Not a Patient, This Is Property of the State’: Nursing, ethics, and the immigrant detention apparatus

This paper opens with first-hand accounts of critical care medical interventions in which detainees, in the custody of U.S. Immigration and Customs Enforcement (ICE), are brought to the emergency department for treatment. This case dramatizes the extent to which the provision of ethical and acceptable nursing care is jeopardized by federal law enforcement paradigms. Drawing on the scholarship of Michel Foucault and Giorgio Agamben, this paper offers a theoretical account of the power dynamics that inform the health care of patients who find themselves caught in the custodial scaffolding of a vast immigration and detention apparatus. It offers an analysis of the display of sovereign and biopolitical power over the lives (and deaths) of detainees (Foucault), as well as the ways these individuals are reduced to "bare life" under the political pretext of an emergency or "state of exception" (Agamben). Our purpose here is both theoretical and practical: to better understand the often hidden agency or impersonal "will" exercised by the immigrant detention system, but also to equip clinicians in these and cognate facilities (e.g., prisons) with the critical tools by which they might better navigate incommensurable paradigms (i.e., care vs. custody) in order to deliver the best care while upholding their ethical duties as a care provider. This is all the more pressing because hospitals are not sanctuaries and given the incursion of federal law enforcement agents, nurses may find themselves conscripted as de facto agents of the state

Municipal government strategies for controlling personnel costs during the fiscal storm

Fiscal stress has spurred city governments to search for ways to reduce costs. Human resource professionals and municipal budget officers have been searching for ways to reduce personnel-related costs because this is where the greatest savings can be realized. This paper identifies and examines different personnel cost-containment strategies pursued by a national sample of 90 large U.S. cities. It focuses on hiring, wages and hours, employee benefits and other HR-related actions. Results indicate that jurisdictions whose municipal fiscal conditions are considered to be fair or poor are more likely than cities whose fiscal conditions are perceived to be good to excellent to use many of the cost reduction strategies. Other demographic and organizational variables had some limited relationship with the use of strategies, but were not as significantly associated with costcontainment actions as city economic climate