Racist Violations and Racializing Apologia in a Post-Racism Era

In theorizing the dialectic of public acts of white racial offenses and the in/sufficiency of apologia associated with white racial discourse, we examine racist violations and racializing apologia from 24 white public figures in the United States between 1996 and 2012. Analysis of racist violations reveals that each offense undermines race as a social and political marker, whereas racializing apologia makes explicit the constant force of racialization and latent nature of whiteness in apologia strategies. We view racializing apologia as potentially liberatory, capable of allowing for a defense of oneself and challenging reproduction of racial formations.     

The question of dissection in medical training: Not just “if,” but “when”? A student perspective

While debate about the use of—and alternatives to—human cadaveric dissection in medical training is robust, little attention has been paid to questions about timing. This study explores the perspectives of medical students and recent graduates with regard to two key questions: when in the degree program do students prefer dissection opportunities and what are the students getting out of participating in dissection? Self-report survey data from students in preclinical years (n = 105), clinical years (n = 57), and graduates (n = 13) were analyzed. Most (89%) preferred dissection during the preclinical years, with no effect by training year (χ² = 1.98, p = 0.16), previous anatomy (χ² = 3.64, p = 0.31), or dissection (χ² = 3.84, p = 0.26) experience. Three key findings emerged. First, the majority of students prefer to dissect in the preclinical years because they view dissection as important for developing foundation knowledge and delivering an opportunity for consolidation prior to transitioning to primarily clinical studies. In addition, students recognize that it is a time-consuming activity requiring specialized facilities. Second, three main understandings of the purpose of dissection were reported: depth of learning, learning experience, and real-world equivalence. Third, these student perspectives of the purpose of dissection are associated with timing preferences for dissection opportunities. The results identify the preclinical phase as the optimal time to strategically integrate dissection into medical training in order to maximize the benefits of this unique learning opportunity for students and minimize its impact upon curricular time.     

Connecting characterizations of equivalence of expressions: design research in Grade 5 by bridging graphical and symbolic representations

Educational Studies in Mathematics - One typical challenge in algebra education is that many students justify the equivalence of expressions only by referring to transformation rules that they...     

Games to Improve Students Information Literacy Skills

Abstract

As digital natives enter higher education, there is the need to improve their information skills but they often overestimate their information research skills and are unfamiliar with the library. The serious games give the opportunity for innovative and engaging approaches to information literacy learning. The paper describes NAVIGATE - Information Literacy: a Game-based Learning Approach for Avoiding Fake Content, a project funded by Erasmus?+?program. The Project aims to improve the competences to avoid fake content of the higher education students in the Humanities. The paper focuses on the comparative analysis of the students’ skills gap and the difficulty of actually assessing the learning improvement achieved by games, highlighting the lessons learned and the open issues.     

The Cost of the Veil: Visual Communication Impacts of Hijab on News Judgments

Using disposition theory as a framework, this 2 (headscarf vs. no headscarf) by 2 (US citizen vs. refugee) experiment sought to elucidate the impact of visual and verbal cues in mediated messages on conclusions drawn from a television news package about a woman accused of consorting with a known terrorist group in the US, in terms of parochial empathy for and perceived innocence of the woman. Parochial empathy measures the difference between ingroup and outgroup empathy; higher levels indicate ingroup empathy is greater than outgroup empathy, meaning the individual’s empathy is very narrow in scope or “parochial.” Political identity was a measured independent variable. The data supported a model in which political identity was a significant moderator of the headscarf’s effect on parochial empathy, and that parochial empathy mediated the relationship between the manipulated and measured predictor variables on perceived innocence. Details of the relationships among variables are reported and the implications for theory and journalism practice are discussed.     

Non-english web search: an evaluation of indexing and searching the Greek web

The study reports on a longitudinal and comparative evaluation of Greek language searching on the web. Ten engines, five global (A9, AltaVista, Google, MSN Search, and Yahoo!) and five Greek (Anazitisi, Ano-Kato, Phantis. Trinity, and Visto), were evaluated using (a) navigational queries in 2004 and 2006; and (b) by measuring the freshness of the search engine indices in 2005 and 2006. Homepage finding queries for known Greek organizations were created and searched. Queries included the name of the organization in its Greek and non-Greek, English or transliterated equivalent forms. The organizations represented ten categories: government departments, universities, colleges, travel agencies, museums, media (TV, radio, newspapers), transportation, and banks. The freshness of the indices was evaluated by examining the status of the returned URLs (live versus dead) from the navigational queries, and by identifying if the engines have indexed 32480 active (live) Greek domain URLs. Effectiveness measures included (a) qualitative assessment of how engines handle the Greek language; (b) precision at 10 documents (P@10); (c) mean reciprocal rank (MRR); (d) Navigational Query Discounted Cumulative Gain (NQ-DCG), a new heuristic evaluation measure; (e) response time; (f) the ratio of the dead URL links returned, (g) the presence or absence of URLs and the decay observed over the period of the study. The results report on which of the global and Greek search engines perform best; and if the performance achieved is good enough from a user’s perspective.     

Tuning direct current streaming dielectrophoresis of proteins

Dielectrophoresis (DEP) of biomolecules has large potential to serve as a novel selectivity parameter for bioanalytical methods such as (pre)concentration, fractionation, and separation. However, in contrast to well-characterized biological cells and (nano)particles, the mechanism of protein DEP is poorly understood, limiting bioanalytical applications for proteins. Here, we demonstrate a detailed investigation of factors influencing DEP of diagnostically relevant immunoglobulin G (IgG) molecules using insulator-based DEP (iDEP) under DC conditions. We found that the pH range in which concentration of IgG due to streaming iDEP occurs without aggregate formation matches the pH range suitable for immunoreactions. Numerical simulations of the electrokinetic factors pertaining to DEP streaming in this range further suggested that the protein charge and electroosmotic flow significantly influence iDEP streaming. These predictions are in accordance with the experimentally observed pH-dependent iDEP streaming profiles as well as the determined IgG molecular properties. Moreover, we observed a transition in the streaming behavior caused by a change from positive to negative DEP induced through micelle formation for the first time experimentally, which is in excellent qualitative agreement with numerical simulations. Our study thus relates molecular immunoglobulin properties to observed iDEP, which will be useful for the future development of protein (pre)concentration or separation methods based on DEP.     

"Knight in shining armour" or "Frankenstein's creation"? The coverage of synthetic biology in German-language media

Although still a side issue in the German-language media, attention towards synthetic biology has risen clearly during the last years, in line with the first applications being presented. This paper presents findings from a content analysis of synthetic biology coverage in German-language media over the years 2004-2009. In the media, synthetic biology is not clearly separated from gene technology. News value is attributed to established categories such as persons and events. Many metaphors and analogies used in describing gene technology can also be found in the coverage of synthetic biology; however, engineering metaphors are more prominent. In addition, playfulness constitutes an aspect rarely found in genetic engineering coverage. Overall, the picture emerging is ambivalent, which leaves prospects for the further development of public debate ambiguous.