X‐ray Scattering Evaluation of Ultrastructural Changes in Human Dental Tissues with Thermal Treatment

Micro‐ and ultrastructural analysis of burned skeletal remains is crucial for obtaining a reliable estimation of cremation temperature. Earlier studies mainly focused on heat‐induced changes in bone tissue, while this study extends this research to human dental tissues using a novel quantitative analytical approach. Twelve tooth sections were burned at 400–900°C (30‐min exposure, increments of 100°C). Subsequent combined small‐ and wide‐angle X‐ray scattering (SAXS/WAXS) experiments were performed at the Diamond Light Source synchrotron facility, where 28 scattering patterns were collected within each tooth section. In comparison with the control sample, an increase in mean crystal thickness was found in burned dentine (2.8‐fold) and enamel (1.4‐fold), however at a smaller rate than reported earlier for bone tissue (5–10.7‐fold). The results provide a structural reference for traditional X‐ray scattering methods and emphasize the need to investigate bone and dental tissues separately to obtain a reliable estimation of cremation temperature.     

Small-scale social-environmental enterprises in the green economy: supporting grassroots innovation

To achieve a top-to-bottom growth of the “green economy”, incentives and enablers need to be identified for those micro enterprises working at the grassroots level. A three-year study of 1,300 social and environmental enterprises in developing countries reveals how they are developing new products and services for their communities, using new business models. But their scale-up is hampered by lack of access to research and technology support and gender barriers, as well as challenges with complex partnerships, progress monitoring, and financial viability. A large pool of innovative ideas remains untapped and an opportunity to build a sustainable economy is being missed.     

Basic Personal Values Underlie and Give Coherence to Political Values: A Cross National Study in 15 Countries

Do the political values of the general public form a coherent system? What might be the source of coherence? We view political values as expressions, in the political domain, of more basic personal values. Basic personal values (e.g., security, achievement, benevolence, hedonism) are organized on a circular continuum that reflects their conflicting and compatible motivations. We theorize that this circular motivational structure also gives coherence to political values. We assess this theorizing with data from 15 countries, using eight core political values (e.g., free enterprise, law and order) and ten basic personal values. We specify the underlying basic values expected to promote or oppose each political value. We offer different hypotheses for the 12 non-communist and three post-communist countries studied, where the political context suggests different meanings of a basic or political value. Correlation and regression analyses support almost all hypotheses. Moreover, basic values account for substantially more variance in political values than age, gender, education, and income. Multidimensional scaling analyses demonstrate graphically how the circular motivational continuum of basic personal values structures relations among core political values. This study strengthens the assumption that individual differences in basic personal values play a critical role in political thought.     

Presidents and Patronage

To what extent do presidents select appointees based upon campaign experience and connections? The answer to this question has important implications for our understanding of presidential management and political leadership. This article presents a theory explaining where presidents place different types of appointees and why, focusing on differences in ideology, competence, and non‐policy patronage benefits among potential appointees. We develop a formal model and test its implications with new data on 1,307 persons appointed in the first six months of the Obama administration. The empirical results broadly support the theory, suggesting that President Obama was more likely to place appointees selected for non‐policy patronage reasons in agencies off his agenda, in agencies that shared his policy views, and where appointees are least able to affect agency performance. We conclude that patronage continues to play an important role in American politics, with important consequences for campaigns, presidential politics, and governance.     

‘Domestic transnationalism’: legal advocacy for Mexican migrant workers' rights in Canada

Every year thousands of Mexicans travel to Canada to work in Canadian fields and greenhouses under the Mexico-Canada Seasonal Agricultural Worker Program. While the programme is often praised, it has also been the subject of persistent criticism about its failure to meet certain human rights standards. In this article, we examine the legal strategies civil society advocates of migrant workers have adopted to promote migrant workers' rights in Canada. Specifically, we examine legal struggles undertaken by the United Food and Commercial Workers union to challenge Ontario government legislation that does not permit collective bargaining by farmworkers in the province. We argue that this case demonstrates that despite the fact that many of the workers involved are transnationalized, appeals to international bodies or to international human rights standards have been of limited utility in promoting their rights. Despite frequent arguments about the increased relevance of international human rights and citizenship norms and transnational human rights advocacy, in this case the national and sub-national scales remain predominant. The result, we argue, is a form of ‘domestic transnationalism’, in which domestic political actors engage in advocacy within domestic legal institutions to promote the rights of a transnational mobile labour force.     

www.terrorism.com: Terror on the Internet

The nature of the Internet--the ease of access, the chaotic structure, the anonymity, and the international character--all furnish terrorist organizations with an easy and effective arena for action. The present research focuses on the use of the Internet by modern terrorist organizations and attempts to describe the uses terrorist organizations make of this new communication technology. Is the use of the Internet by terrorists different from that of other, "conventional" means of communication? How can governments respond to this new challenge? The population examined in this study is defined as the Internet sites of terrorist movements as found by a systematic search of the Internet, using various search engines. The sites were subjected to a qualitative content analysis, focusing on their rhetorical structures, symbols, persuasive appeals, and communication tactics. The study reveals differences and similarities between terrorist rhetoric online and in the conventional media.     

Applying the Notion of Noise to Countering Online Terrorism

The growing presence of modern terrorism on the Internet is at the nexus of two key trends: the democratization of communications driven by user-generated content on the Internet; and the growing awareness of modern terrorists of the potential of the Internet for their purposes. How best can the terrorists’ use and abuse of the Internet be countered? As this article argues, the answer to violent radicalization on the Internet lies not in censorship of the Internet, but in a more sophisticated and complicated strategy, relying on the theoretical notion of “noise” in communication process theory.     

Conceptualizing the effects of mass‐mediated terrorism

Abstract

In summer 1985, a TWA plane was hijacked by Shiite terrorists to Beirut creating what turned to be one of the most impressive spectacles of the mass‐mediated “theater of terror.” After the event the American media were blamed for fanning the crisis atmosphere, giving the terrorists the publicity they craved, abetting the terrorists by reporting U.S. military movements, holding a brutal competition among themselves to get exclusive footage or interviews, harassing the hostages’ families, negotiating directly with the terrorists, milking the hostages still held by the terrorists for political and ideological declarations, and propagandizing the terrorists’ anti‐U.S. and anti‐Israel messages. The resulting debate that followed these accusations, illustrates the lingering argument regarding media and terrorism. While some claim that “the media are the terrorists’ best friends. The terrorist act by itself is nothing. Publicity is all”,¹ others argue that the media are avoiding the “real terror” for ideological reasons, averting Western public opinion from U.S. terrorism by underreporting its share in Third World Terrorism.² The ideological loadings of definitions and arguments are combined with confused interpretations of media effects and public opinion to yield an endless, futile debate. The purpose of the paper is to conceptualize basic effects of mass‐mediated terrorism by relating media effects studies to the case of terrorism and public opinion.     

Releasing Constraints to Growth or Pushing on a String? Policies and Performance of Mexican Micro-Firms

Using firm-level data from Mexico, this paper investigates the firm characteristics associated with participation in credit markets, access to training, tax payments and membership in business associations. We find that firms which participate in these institutions exhibit significantly higher profits. Moreover, firms that borrow from formal or informal sources and those that pay taxes are significantly more likely to stay in business but firms that received credit exhibit lower rates of income growth. These results persist when firm characteristics that are arguably correlated with unobserved entrepreneurial ability are controlled for. Our findings suggest that the significant within-country differences in firm productivity observed in developing economies are due in part to market and government failures that limit the ability of micro-firms to reach their optimal sizes.