promise was doubtful and its validity unlikely to have been vetted. Predatory journals are a global threat. They accept articles for publication-along with authors' fees-without performing promised quality checks for issues such as plagiarism or ethical approval. Naive readers are not the only victims. Many researchers have been duped into submitting to predatory journals, in which their work can be overlooked. One study that focused on 46,000 researchers based in Italy found that about 5% of them published in such outlets 1. A separate analysis suggests predatory publishers collect millions of dollars in publication fees that are ultimately paid out by funders such as the US National Institutes of Health (NIH) 2. One barrier to combating predatory publishing is, in our view, the lack of an agreed definition. By analogy, consider the historical criteria for deciding whether an abnormal bulge in the aorta, the largest artery in the body, could be deemed an aneurysm-a dangerous W hen 'Jane' turned to alternative medicine, she had already exhausted radiotherapy, chemotherapy and other standard treatments for breast cancer. Her alternative-medicine practitioner shared an article about a therapy involving vitamin infusions. To her and her practitioner, it seemed to be authentic grounds for hope. But when Jane showed the article to her son-in-law (one of the authors of this Comment), he realized it came from a predatory journal-meaning its Leading scholars and publishers from ten countries have agreed a definition of predatory publishing that can protect scholarship. It took 12 hours of discussion, 18 questions and 3 rounds to reach.

We present a first estimate of the extent of predatory publishing amongst South African academics. This estimate is based on an analysis of all South African authored papers that qualified for subsidy over the period 2005 to 2014. The analysis shows that 4246 South African papers were published in 48 journals which we re-classified (refining Beall’s classification) as either being probably or possibly predatory. A breakdown of these papers by year shows that the greatest increase in predatory publishing has occurred since 2011. Results are also presented of the distribution of these papers by individual university and scientific field. We conclude with some suggestions about predatory publishing and its pervasive consequence for our trust in science and how this should be addressed by the major stakeholders in the South African higher education system.

Worldwide, in Africa and in South Africa, the importance of the doctorate has increased disproportionately in relation to its share of the overall graduate output over the past decade. This heightened attention has not only been concerned with the traditional role of the PhD, namely the provision of future academics; rather, it has focused on the increasingly important role that higher education - and, particularly, high-level skills - is perceived to play in national development and the knowledge economy. This book is unique in the area of research into doctoral studies because it draws on a large number of studies conducted by the Centre of Higher Education Trust (CHET) and the Centre for Research on Evaluation, Science and Technology (CREST), as well as on studies from the rest of Africa and the world. In addition to the historical studies, new quantitative and qualitative research was undertaken to produce the evidence base for the analyses presented in the book.The findings presented in Doctoral Education in South Africa pose anew at least six tough policy questions that the country has struggled with since 1994, and continues to struggle with, if it wishes to gear up the system to meet the target of 5 000 new doctorates a year by 2030. Discourses framed around the single imperatives of growth, efficiency, transformation or quality will not, however, generate the kind of policy discourses required to resolve these tough policy questions effectively. What is needed is a change in approach that accommodates multiple imperatives and allows for these to be addressed simultaneously.

The article interrogates some of the current views and myths around the so-called 'inefficiency' of the management of postgraduate studies in South Africa. In this regard data are presented on recent trends in postgraduate completion rates at the doctoral level; as well as on comparative data on throughput rates. I argue that the current discourse in South African higher education is obsessed with concerns of efficiency rather than effectiveness and quality. In this process, we focus too much on managerial and administrative solutions rather than on the challenges posed by academically underprepared postgraduate students.

Young scientists are a powerful resource for change and sustainable development, as they drive innovation and knowledge creation. However, comparable findings on young scientists in various countries, especially in Africa and developing regions, are generally sparse. Therefore, empirical knowledge on the state of early-career scientists is critical in order to address current challenges faced by those scientists in Africa. This book reports on the main findings of a three-and-a-half-year international project in order to assist its readers in better understanding the African research system in general, and more specifically its young scientists. The first part of the book provides background on the state of science in Africa, and bibliometric findings concerning Africa's scientific production and networks, for the period 2005 to 2015. The second part of the book combines the findings of a large-scale, quantitative survey and more than 200 qualitative interviews to provide a detailed profile of young scientists and the barriers they face in terms of five aspects of their careers: research output; funding; mobility; collaboration; and mentoring. In each case, field and gender differences are also taken into account. The last part of the book comprises conclusions and recommendations to relevant policy- and decision-makers on desirable changes to current research systems in Africa.