Americans ‘support’ the idea of tuition-free college: an exploration of sentiment and political identity signals otherwise

In January 2015, President Obama captured headlines in the US by announcing America’s College Promise (ACP), a policy that would reverse four decades of privatisation in higher education by making community colleges ‘tuition-free’. This research explores the conversation that unfolded across the Facebook pages of various media sources. Key phrases associated with sentiments and communication styles are uncovered using a Bag of Words (BoW) technique. Next, guided by political identity theory, the researchers employ logistic regression to explore variable effects (e.g. source, gender, race, age and political leaning) on communicating: (1) Against ACP, (2) in a Civil manner, and (3) Against/Civil/On-Topic. BoW models suggest those against the policy utilise anti-free-ride, privatisation rhetoric, whereas those using uncivil language attack commentators and groups who counter personally-held political beliefs – while also introducing non-sequiturs from other policies (e.g. healthcare and immigration). The combined communication styles unlocked tokens not found in larger sentiments, such as concerns over student loan debt. Logistic regression illustrates that, depending on sentiment or communication style explored, political identities and memberships associated with source and political alignment significantly affected likelihoods of communicating in the conversation. These findings are linked back to political identity theory.     

An efficient parallel algorithm for shortest paths in planar layered digraphs

This paper presents an efficient parallel algorithm for the shortest path problem in planar layered digraphs that runs in O(log3n) time with n processors. The algorithms uses a divide and conquer approach and is based on the novel idea of a one-way separator, which has the property that any directed path can be crossed only once.     

Decentralization and recentralization reform in Mongolia: tracing the swing of the pendulum

For the past 10 years the Ministry of Education of Mongolia has periodically oscillated between decentralization and recentralization policies. On paper, it has consistently and enthusiastically subscribed to decentralization, but in practice has given these policies low priority. This study attempts to explain the discrepancies between policy talk and actual implementation. Methodologically, the authors investigate local policy contexts and examine how international interventions such as decentralization policies are locally reinterpreted or ‘Mongolized’. The study examines several areas where cultural legacies from the socialist past have clashed with the expectations of international donors. Theoretically, the Mongolian fiasco of decentralization reform lends itself as a case to address issues that have been raised both in comparative research on ‘transitology’ and on cross‐national policy borrowing.     

Hyperinsulinemia predisposes to NAFLD

Metabolic syndrome contributes to pathogenesis of Type-2 diabetes and CAD. Insulin Resistance is the key factor of metabolic syndrome implicated in development of Non Alcoholic Fatty Liver Disease (NAFLD). In present study we have investigated the prevalence of NAFLD in metabolic syndrome and contribution of metabolic risk factors in causation of NAFLD in non-diabetic North Indian male population. The study was conducted on 495 non-diabetic, nonalcoholic subjects (age 30–65 years). Metabolic Syndrome was assessed by using ATP III and ADA (2005) criteria. Anthropometric factors-Waist circumference and blood pressure were measured. Fasting serum samples were analyzed for Glucose, Triglycerides, Cholesterol and its fractions, Insulin, Alanine transaminase, Aspartate transaminase, Gamma glutamyl transferase and free fatty acids. Insulin resistance was estimated by Homeostasis Model and Insulin sensitivity by QUICKI Index. Liver ultrasonographic scanning was used for assessing fatty liver. The prevalence of metabolic syndrome and NAFLD was 24% and 14.8% respectively in non-alcoholic population and 27% of metabolic syndrome had NAFLD which was associated with hyperinsulinemia, insulin resistance, insulin insensitivity along with elevated levels of waist circumference, blood pressure, triglyceride, FFA and decreased HDL-Cholesterol. The prevalence of NAFLD increased with insulin resistance and clustering of metabolic risk factors.     

Assessment as learning: Enhancing discourse,understanding, and achievement in innovative science curricula

An assessment‐oriented design‐based research model was applied to existing inquiry‐oriented multimedia programs in astronomy, biology, and ecology. Building on emerging situative theories of assessment, the model extends prevailing views of formative assessment for learning by embedding “discursive” formative assessment more directly into the curriculum. Three twenty‐hour curricula were designed and aligned to content standards, and three levels of assessments were developed and used to assess and enhance learning for each curriculum. These assessments included three or four informal “activity‐oriented” quizzes and discursive formative feedback rubrics supporting collective discourse, a “curriculum‐oriented” examination of individual conceptual understanding, and a “standards‐oriented” test measuring aggregated achievement of targeted standards. After two design‐research cycles, worthwhile scientific argumentation and statistically significant gains were attained for two of the three packages on the exam and test. Achievement gains were comparable to or larger than those of students in comparison classrooms. Many existing innovations could be enhanced and evaluated in this fashion; designing these strategies directly into innovations could have an even greater impact on discourse, understanding, and achievement. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 1240–1270, 2012     

Promoting attitude change and expressed willingness to take action toward climate change in college students

This study examined the relationship among cognitive and motivational variables impacting college students’ willingness to take mitigative action to reduce the impacts of human-induced climate change. One hundred and forty college students were asked to read a persuasive text about human-induced climate change and were pre and post tested on their attitudes about climate change and their willingness to take action to mitigate its effects. Students showed statistically significant changes in their attitudes about climate change and their willingness to commit to take action. A path model demonstrated that openness to change and a willingness to think deeply about issues predicted both change in attitudes and expressed willingness to take action. This research demonstrates that a persuasive text has the potential to promote change around complex socio-scientific issues.