Looking the Part: Television Leads Less Informed Citizens to Vote Based on Candidates’ Appearance

As long as there has been democratic government, skeptics have worried that citizens would base their choices and their votes on superficial considerations. A series of recent studies seems to validate these fears, suggesting that candidates who merely look more capable or attractive perform better in elections. In this article, we examine the underlying process behind the appearance effect. Specifically, we test whether the effect of appearance is more pronounced among those who know little about politics but are exposed to visual images of candidates. To do so, we combine appearance-based assessments of U.S. Senate and gubernatorial candidates with individual-level survey data measuring vote intent, political knowledge, and television exposure. Confirming long-standing concerns about image and television, we find that appealing-looking politicians benefit disproportionately from television exposure, primarily among less knowledgeable individuals

A framework for teaching epistemic insight in schools

This paper gives the rationale and a draft outline for a framework for education to teach epistemic insight into schools in England. The motivation to research and propose a strategy to teach and assess epistemic insight followed research that investigated how students and teachers in primary and secondary schools respond to big questions about the nature of reality and human personhood. The research revealed that there are pressures in schools that dampen students’ expressed curiosity in these types of questions and limit their developing epistemic insight into how science, religion and the wider humanities relate. These findings prompted the construction of a framework for education for students aged 5–16 designed to encourage students’ expressed interest in big questions and develop their understanding of the ways that science interacts with other ways of knowing. The centrepiece of the framework is a sequence of learning objectives for epistemic insight, organised into three categories. The categories are, firstly, the nature of science in real world contexts and multidisciplinary arenas; secondly, ways of knowing and how they interact; and thirdly, the relationships between science and religion. Our current version of the Framework is constructed to respond to the way that teaching is organised in England. The key principles and many of the activities could be adopted and tailored to work in many other countries

A Key Marine Diazotroph in a Changing Ocean: The Interacting Effects of Temperature, CO2 and Light on the Growth of Trichodesmium erythraeum IMS101

Trichodesmium is a globally important marine diazotroph that accounts for approximately 60-80% of marine biological N2 fixation and as such plays a key role in marine N and C cycles. We undertook a comprehensive assessment of how the growth rate of Trichodesmium erythraeum IMS101 was directly affected by the combined interactions of temperature, pCO2 and light intensity. Our key findings were: low pCO2 affected the lower temperature tolerance limit (Tmin) but had no effect on the optimum temperature (Topt) at which growth was maximal or the maximum temperature tolerance limit (Tmax); low pCO2 had a greater effect on the thermal niche width than low-light; the effect of pCO2 on growth rate was more pronounced at suboptimal temperatures than at supraoptimal temperatures; temperature and light had a stronger effect on the photosynthetic efficiency (Fv/Fm) than did CO2; and at Topt, the maximum growth rate increased with increasing CO2, but the initial slope of the growth-irradiance curve was not affected by CO2. In the context of environmental change, our results suggest that the (i) nutrient replete growth rate of Trichodesmium IMS101 would have been severely limited by low pCO2 at the last glacial maximum (LGM), (ii) future increases in pCO2 will increase growth rates in areas where temperature ranges between Tmin to Topt, but will have negligible effect at temperatures between Topt and Tmax, (iii) areal increase of warm surface waters (> 18°C) has allowed the geographic range to increase significantly from the LGM to present and that the range will continue to expand to higher latitudes with continued warming, but (iv) continued global warming may exclude Trichodesmium spp. from some tropical regions by 2100 where temperature exceeds Topt

Multiple novel prostate cancer susceptibility signals identified by fine-mapping of known risk loci among Europeans

Genome-wide association studies (GWAS) have identified numerous common prostate cancer (PrCa) susceptibility loci. We have fine-mapped 64 GWAS regions known at the conclusion of the iCOGS study using large-scale genotyping and imputation in 25 723 PrCa cases and 26 274 controls of European ancestry. We detected evidence for multiple independent signals at 16 regions, 12 of which contained additional newly identified significant associations. A single signal comprising a spectrum of correlated variation was observed at 39 regions; 35 of which are now described by a novel more significantly associated lead SNP, while the originally reported variant remained as the lead SNP only in 4 regions. We also confirmed two association signals in Europeans that had been previously reported only in East-Asian GWAS. Based on statistical evidence and linkage disequilibrium (LD) structure, we have curated and narrowed down the list of the most likely candidate causal variants for each region. Functional annotation using data from ENCODE filtered for PrCa cell lines and eQTL analysis demonstrated significant enrichment for overlap with bio-features within this set. By incorporating the novel risk variants identified here alongside the refined data for existing association signals, we estimate that these loci now explain ∼38.9% of the familial relative risk of PrCa, an 8.9% improvement over the previously reported GWAS tag SNPs. This suggests that a significant fraction of the heritability of PrCa may have been hidden during the discovery phase of GWAS, in particular due to the presence of multiple independent signals within the same regio

Introduction to Latin American Studies

This HASS-D/CI course is designed as an introduction to Latin American politics and society for undergraduates at MIT. No background on the region is required. Overall workload (reading, writing, class participation, and examinations) is similar to that of other HASS-D courses. Many of the themes raised here are covered in greater detail in other courses: 21F.020J (New World Literature), 21F.716 (Introduction to Contemporary Hispanic Literature), 21F.730 (Twentieth-Century Hispanic American Literature), 21F.735 (Advanced Topics in Hispanic Literature and Film), 21A.220 (The Conquest of America), 21H.802 (Modern Latin America), 3.982 (The Ancient Andean World), 3.983 (Ancient Mesoamerican Civilization), 17.508 (Regime Change), and 17.554 (Political Economy of Latin America)

Introduction to Comparative Politics

This class first offers some basic analytical frameworks -- culture, social structure, and institutions -- that you can use examine a wide range of political outcomes. We then use these frameworks to understand (1) the relationship between democracy and economic development and (2) the relative centralization of political authority across countries. We will use theoretical arguments and a wide range of case studies to address several questions: Why are some countries democratic and others not? How does democracy affect economic development and political conflict? Why do some countries centralize power while others threaten to fall apart through secession and civil war? We will use examples from a wide range of countries including Argentina, Brazil, Germany, Iraq, Italy, Mexico, and the United States. The lessons drawn from these countries will prepare you to analyze other countries of your own choosing in the paper assignments. At the end of the course, you should be able to analyze political events around the world, drawing on the theoretical explanations provided in the class

Building the fourth estate: democratization and the rise of a free press in Mexico

Based on an in-depth examination of Mexico's print and broadcast media over the last twenty-five years, this book is the most richly detailed account available of the role of the media in democratization, demonstrating the reciprocal relationship between changes in the press and changes in the political system. In addition to illuminating the nature of political change in Mexico, this accessibly written study also has broad implications for understanding the role of the mass media in democratization around the world

Introduction to Comparative Politics

Why are some countries democratic and others not? How do political institutions affect economic development and political conflict? How do politics in the United States compare to politics in other countries? This class first reviews cultural, social, and institutional explanations for political outcomes. It then turns to more detailed examination of specific topics: ethnic conflict in India, democratic collapse in Weimar Germany, regional disparities in Italy, market-oriented reform (or lack thereof) in Brazil, corruption in Mexico, ethnic violence in Yugoslavia, the impoverishment of post-Communist Russia, and the prospects for democracy in China. Each of these examples is meant to stand in for a range of cases, allowing you to extrapolate to new material. At the end of the course, you should be able to analyze political events around the world, drawing on the theoretical explanations provided in the class