Amorphization and evolution of magnetic properties during mechanical alloying of Co62Nb6Zr2B30: Dependence on starting boron microstructure

Co62Nb6Zr2B30 composition was mechanically alloyed using three different types of boron powders in the starting mixture: crystalline β-B, commercial amorphous B and optimized amorphous B via ball milling. Using optimized amorphous B, amorphization process of the alloy is more efficient but milling to optimize amorphous B introduces some iron contamination. Boron inclusions (100-150 nm in size) remain even after long milling times. However, using amorphous boron reduces the fraction of boron distributed as inclusions to ∼40% of the total B. Thermal stability at the end of the milling process is affected by the initial boron microstructure. Coercivity is reduced a half using amorphous B instead of crystalline B in the starting mixture. © 2013 Elsevier B.V. All rights reserved.Peer Reviewe

New development: Running elections during a pandemic

The Covid-19 pandemic posed a profound challenge for the delivery of elections worldwide. Elections are indispensable for democracy, but the high volume of human interactions within the electoral process risked spreading the virus. Electoral officials therefore found themselves planning or managing an election during an emergency situation, often for the first time. This article argues that there are several major organizational ‘elephant traps’ that polities will need to side-step during pandemics in order to safely protect the healthy running of elections. IMPACT: Elections often take place in during emergency situations such as pandemics, floods, earthquakes and hurricanes. In order to secure electoral integrity, this article encourages governments, legislators and electoral management bodies to: build political consensuses, consider the impact on the whole electoral cycle, include a wide range of stakeholders in meetings, invest in sufficient resources, undertake risk assessments and avoid late major changes to electoral law

The economics and politics of women's rights

Women’s rights and economic development are highly correlated. Today, the discrepancy between the legal rights of women and men is much larger in developing compared to developed countries. Historically, even in countries that are now rich women had few rights before economic development took off. Is development the cause of expanding women’s rights, or conversely, do women’s rights facilitate development? We argue that there is truth to both hypotheses. The literature on the economic consequences of women’s rights documents that more rights for women lead to more spending on health and children, which should benefit development. The politicaleconomy literature on the evolution of women’s rights finds that technological change increased the costs of patriarchy for men, and thus contributed to expanding women’s rights. Combining these perspectives, we discuss the theory of Doepke and Tertilt (2009), where an increase in the return to human capital induces men to vote for women’s rights, which in turn promotes growth in human capital and income per capita