Questions of importance to the conservation of biological diversity: answers from the past

Paleoecological records are replete with examples of biotic responses to past climate change and human impact, but how can we use these records in the conservation of current and future biodiversity? A recently published list of (One Hundred Questions of Importance to the Conservation of Global Biological Diversity) (Sutherland et al., 2009) highlights a number of key research questions that need a temporal perspective. Many of these questions are related to the determination of ecological processes in order to assess ecosystem function and services, climate change integrated conservation strategies, and ecosystem management and restoration. However, it is noticeable that not a single contributor to this list was from the paleo-research community and that extremely few paleo-records are ever used in the development of terrestrial conservation management plans. This lack of dialogue between conservationists and the paleo-community is partially driven by a perception that the data provided by paleoecological records are purely descriptive and not of relevance to the day-to-day management and conservation of biological diversity. This paper illustrates, through a series of case-studies, how long-term ecological records (>50 years) can provide a test of predictions and assumptions of ecological processes that are directly relevant to management strategies necessary to retain biological diversity in a changing climate. This discussion paper includes information on diversity baselines, thresholds, resilience, and restoration of ecological processes

From patriarchal socialism to grassroots capitalism: The role of female entrepreneurs in the transition of North Korea

© 2018 Elsevier Ltd Since the collapse of North Korea's command economy in the 1990s, a large number of women have become entrepreneurs. This remarkable feature of North Korean marketisation cannot be adequately explained by female entrepreneur (FE) deficit premises, which highlight women's supposed shortcomings in what is considered a male enterprise. Based on in-depth interviews with female North Korean defectors, and viewing entrepreneurship as a catalyst for socio-cultural change, this paper questions how FEs emerged in North Korea and whether women's market participation influences gender relations, or attitudes toward the North Korean regime. There have been noticeable changes in gender roles, son preference and choice of marriage partners. Our findings suggest that female entrepreneurship has the potential to both challenge and support the North Korean system. This research significantly advances scholarship on gender and entrepreneurship by adopting a constructionist approach to gender and transcending the prevalence of descriptive analysis of gendered entrepreneurial practices

Fashion and the Social Construction of Femininity in North Korea

© 2017 Asian Studies Association of Australia. In this paper we argue that North Korea’s socioeconomic transformation has had a profound and yet under-appreciated impact on the social construction of femininity. Drawing on 45 in-depth interviews with North Korean refugees, interviews with regular visitors to North Korea and NGO workers, and our own field notes from trips to North Korea, we analyse changes over three discernible (yet overlapping) economic periods: the 1960s–90s pre-famine period; the mid-1990s to late 2000s grassroots capitalism era; and the current Kim Jong Un period of quasi-capitalism. As dress is a discursive daily practice of gender, we focus on the practice of femininity as shown through North Korean women’s fashion choices. We argue that images of women in state propaganda have been shaped primarily by male leaders, but norms of femininity have shaped, and also been shaped by, women themselves. That is, the recent trend for North Korean women to dress in hyper-feminine styles can be explained in terms of women remaking themselves and planning their future lives

The onward migration of North Korean refugees to Australia: In search of cosmopolitan habitus

© 2017 Kyungja Jung, Bronwen Dalton and Jacqueline Willis. Based on assumed common ethnicity, language and culture, and generous settlement programs, South Korea is believed to be the best country for North Korean defectors to restart their lives. This is, however, not necessarily the case. Since the mid-2000s, 2000 to 3000 North Koreans have allegedly settled in the UK, Canada, the US, Australia and EU countries. Despite this trend and its broader implications, the onward migration process of North Korean refugees, together with their motivations and lived experiences, remain poorly addressed in academic research. Drawing from the unique experience of North Korean refugees’ onward movement to Australia, the paper suggests that discarding a North Korean identity and habitus and gaining cosmopolitan habitus are the main reasons behind North Korean defectors’ onward migration. The paper is the first empirical study on North Korean refugees resettled in Australia to adopt habitus as a theoretical framework, and thus provides new insight into migration studies

Assessing MyPlate Familiarity and Typical Meal Composition using Food Models in Children Aged 7-13

The Dietary Guidelines for Americans serve as a basis for developing federal nutrition education materials for the public, such as MyPlate. MyPlate is a visual cue that uses food groups as a guide to building healthy plates at mealtime. The objective of this study was to determine factors associated with child familiarity with MyPlate guidelines and to determine if typical meals met MyPlate guidelines using food models. A convenience sample of 250 children (aged 7-13 years) and their parent/guardian were recruited at a local science and history museum. Children viewed a picture of the MyPlate icon and were asked to identify the picture. Next, participants used a nine-inch plate to build a typical meal (meals that they would regularly consume) from a buffet of food and beverages models (>65 items to choose from). Research team members took photographs of the plates. A Registered Dietitian Nutritionist determined the percentage of plates that met MyPlate guidelines. Eighty-six percent of children recognized the MyPlate icon upon viewing the image; 7.6% could accurately identify the icon by name. When participants were asked to build a typical meal, however, only 3.43% met MyPlate guidelines. The results of this study suggest that despite being familiar with MyPlate, children built typical meals that did not meet MyPlate guidelines

Crack Front Waves and the dynamics of a rapidly moving crack

Crack front waves are localized waves that propagate along the leading edge of a crack. They are generated by the interaction of a crack with a localized material inhomogeneity. We show that front waves are nonlinear entities that transport energy, generate surface structure and lead to localized velocity fluctuations. Their existence locally imparts inertia, which is not incorporated in current theories of fracture, to initially "massless" cracks. This, coupled to crack instabilities, yields both inhomogeneity and scaling behavior within fracture surface structure.Comment: Embedded Latex file including 4 figure

Uncertainties in field-line tracing in the magnetosphere. <br>Part II: the complete internal geomagnetic field

International audienceThe discussion in the preceding paper is restricted to the uncertainties in magnetic-field-line tracing in the magnetosphere resulting from published standard errors in the spherical harmonic coefficients that define the axisymmetric part of the internal geomagnetic field (i.e. gn0 ± ?gn0). Numerical estimates of these uncertainties based on an analytic equation for axisymmetric field lines are in excellent agreement with independent computational estimates based on stepwise numerical integration along magnetic field lines. This comparison confirms the accuracy of the computer program used in the present paper to estimate the uncertainties in magnetic-field-line tracing that arise from published standard errors in the full set of spherical harmonic coefficients, which define the complete (non-axisymmetric) internal geomagnetic field (i.e. gnm ± ?gnm and hnm ± ?hnm). An algorithm is formulated that greatly reduces the computing time required to estimate these uncertainties in magnetic-field-line tracing. The validity of this algorithm is checked numerically for both the axisymmetric part of the internal geomagnetic field in the general case (1 ? n ? 10) and the complete internal geomagnetic field in a restrictive case (0 ? m ? n, 1 ? n ? 3). On this basis it is assumed that the algorithm can be used with confidence in those cases for which the computing time would otherwise be prohibitively long. For the complete internal geomagnetic field, the maximum characteristic uncertainty in the geocentric distance of a field line that crosses the geomagnetic equator at a nominal dipolar distance of 2 RE is typically 100 km. The corresponding characteristic uncertainty for a field line that crosses the geomagnetic equator at a nominal dipolar distance of 6 RE is typically 500 km. Histograms and scatter plots showing the characteristic uncertainties associated with magnetic-field-line tracing in the magnetosphere are presented for a range of illustrative examples. Finally, estimates are given for the maximum uncertainties in the locations of the conjugate points of selected geophysical observatories. Numerical estimates of the uncertainties in magnetic-field-line tracing in the magnetosphere, including the associated uncertainties in the locations of the conjugate points of geophysical observatories, should be regarded as "first approximations'' in the sense that these estimates are only as accurate as the published standard errors in the full set of spherical harmonic coefficients. As in the preceding paper, however, all computational techniques developed in this paper can be used to derive more realistic estimates of the uncertainties in magnetic-field-line tracing in the magnetosphere, following further progress in the determination of more accurate standard errors in the spherical harmonic coefficients

Using NASA-Unique Lunar Sample Disks and Resources to Inspire and Promote Scientific Inquiry

The opportunity for educators and students across the nation to hold precious, NASA lunar samples in their hands and examine materials brought back by astronauts during the Apollo era is an experience and memory that can last a lifetime. Combine that experience with the opportunity to be engaged with hands-on activities that promote scientific inquiry and an understanding of the importance of these samples...now you are preparing our nation's future scientific explorers