Although desert dunes cover 5 per cent of the global land surface and 30 per cent of Africa, the potential impacts of twenty-first century global warming on desert dune systems are not well understood. The inactive Sahel and southern African dune systems, which developed in multiple arid phases since the last interglacial period, are used today by pastoral and agricultural systems that could be disrupted if climate change alters twenty-first century dune dynamics. Empirical data and model simulations have established that the interplay between dune surface erodibility (determined by vegetation cover and moisture availability) and atmospheric erosivity (determined by wind energy) is critical for dunefield dynamics. This relationship between erodibility and erosivity is susceptible to climate-change impacts. Here we use simulations with three global climate models and a range of emission scenarios to assess the potential future activity of three Kalahari dunefields. We determine monthly values of dune activity by modifying and improving an established dune mobility index so that it can account for global climate model data outputs. We find that, regardless of the emission scenario used, significantly enhanced dune activity is simulated in the southern dunefield by 2039, and in the eastern and northern dunefields by 2069. By 2099 all dunefields are highly dynamic, from northern South Africa to Angola and Zambia. Our results suggest that dunefields are likely to be reactivated (the sand will become significantly exposed and move) as a consequence of twenty-first century climate warming.

The number of racialized women entrepreneurs has grown exponentially in recent years. Despite this growing trend, these businesswomen are more likely to operate on a small scale; their labour‐intensive businesses are characterized by low profits and limited mobility. Two fields of research attempt to illuminate — albeit problematically — the complexity of this phenomenon. Research on ethnic/immigrant entrepreneurs underestimates the experiences of racialized women who are entrepreneurs in their own right. Meanwhile the literature on women's entrepreneurship essentializes and homogenizes women's entrepreneurship. Research approaching women's entrepreneurship using an intersectional approach is scanty. In this paper, I draw on empirical evidence from a qualitative study with women entrepreneurs of Afro‐Caribbean descent. To provide a more nuanced understanding of racialized women entrepreneurs' experiences as entrepreneurs, I use Dill and Zambrana's intersectional/interlocking systems of oppression framework, examining processes of gendering, classing and racialization within four domains: structural, disciplinary, hegemonic and interpersonal. Despite processes of differentiation, participants found creative and subversive ways to resist these processes.

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This study examined the degree of acceptance of qualitative research by medical trainees and physicians, and explored the causes for any differences in their support of qualitative versus quantitative research. Thirty-two individuals at four levels of medical training were studied. Eight philosophers of science served for construct validation. After completing a questionnaire, participants were interviewed using a semi-structured procedure. Transcriptions of the interviews were coded for emergent themes. Coding consensus was achieved via iterative discussion. When asked to categorize 10 projects, participants on average ranked quantitative science projects as "more scientific" than those using qualitative methodologies. Although participants appeared largely unaware of the principles underlying qualitative methodologies, most expressed the belief that qualitative data was more biased and less objective than quantitative data. Prior qualitative research experience was the major predictor of acceptance of qualitative research. Participants' acceptance of interpretivistic or positivistic paradigms also influenced what type of science they felt was acceptable. Their level of training did not correlate with the acceptance of qualitative methodologies. On average, participants in our study favoured quantitative methodologies over qualitative methodologies. We postulate that this preference is due to their unawareness of the principles and paradigms underlying the methodologies.

Using critical discourse analysis, this paper examines how the female entrepreneurial subject is constructed/produced within entrepreneurial discourses, how this subject is racialized, gendered and classed, and examines what practices contribute to the shaping of the female entrepreneurial subject. I specifically look at four areas/discourses central to entrepreneurship; that of independence, self-definition/selfmonitoring, networking, and women's abilities as businesswomen. I contend that contemporary self-employment discourses mirror those of neo-liberalism/modernization where the notion of the independent liberal subject has the ability to self-determine and self-monitor, which is a sign of autonomy and mastery of the self. I also argue that the space of women's entrepreneurship legitimizes white middle-class women's experiences and excludes women of color from becoming active subjects in entrepreneurial discourses.