Spill-over effect in media framing: Representations of wildlife conservation in Zimbabwean and international media, 1989–2010

Myths and metaphors that occur in media frames play an important role in influencing public perceptions of an issue in times of war, political conflict, crisis and disaster. This, in turn, influences policy makers and (inter)national assistance and aid programmes. We investigated whether a metaphoric spill-over of frames used in connection with political events could explain the misrepresentation in the framing of wildlife conservation. Zimbabwe experienced a severe political conflict and economic downturn in 2000 when land reforms took place. We analyzed newspaper articles on Zimbabwe's wildlife conservation published between 1989 and 2010 from newspapers in Zimbabwe, the United Kingdom and the United States of America. We selected three issues about wildlife conservation in Zimbabwe in the local and international media, namely, the ivory ban, rhino protection, and Communal Areas Management Programme for Indigenous Resources to investigate the spill-over effect. Our results show that in the 1990s, the majority of newspaper articles highlighted that wildlife conservation in Zimbabwe was largely successful. However, two major changes occurred after 2000 following the land reforms in Zimbabwe. First, the international media showed little interest in wildlife conservation in Zimbabwe as evidenced by a sharp decline in published articles and second, the frames changed in the international media with the “political unrest and land reform” blame frame becoming more dominant. This transition in reporting, frames, and low frame parity shows that there was a spill-over effect of political frames into wildlife conservation following Zimbabwe's land reforms in 2000. Metaphoric spill-over effects may thus create myths in the readership, in turn influencing policy-derived actions in a sector that is not or poorly related to the actual disaster.     

Transforming meanings and group positions: tactics and framing in Anishinaabe–white relations in Northwestern Ontario,Canada

Abstract

Antiracism research often examines how stigmatized groups transform the meanings associated with their group. A complementary approach analyses the tactics that dominant and subordinate groups use to defend or advance their ‘group positions’ in situations that threaten the status quo. A case study of the proposed relocation of an Aboriginal child welfare facility to a rural Ontario township sheds light on both processes. Before rejecting the proposal, white residents and municipal councillors used delaying tactics, searched for race-neutral justifications, offered unsolicited advice, created new rules, and censured ‘traitors’. The Native agency (and its few white ‘allies’), guided by traditional decision-making practices, initially tried to provide ‘neutral’ information, stay positive, and emphasize common interests. When these tactics failed, they considered others before foregoing the opportunity to appeal to an independent tribunal. Ultimately, this case shows how laissez-faire frames and small-town dynamics can limit the choice and effectiveness of antiracist tactics.     

Temperature,hydrochemistry and plankton in Wicken Brickpits, 1930–1931

Temperature, selected chemical constituents and plankton were analysed from three depths, fortnightly, by day and occasionally by night, in two flooded brickpits, between May 1930 and August 1931.Br was 3.3 m deep, with clear water and little weed; III was only 1.8 m deep, with thick submerged weed, more sheltered than Br and becoming eutrophic. Neither had direct inflow nor outlet. Both conformed to the second order for dimictic lakes, with summer and winter stratification, leading, for varying periods, to stagnation marked by pH between 6.6 and 7.2 and O₂ much depleted or absent at the bottom.During stagnation, release of SiO₂, soluble inorganic phosphate-P, ammonium ions and bases from the bottom was shown by sampling water close to the mud. This finding preceded the definition of redox potential by others.Thermistor temperature measurements, used for the first time, showed comparable summer gradients in both ponds: on windy days these were usually sigmoid, with discontinuity at various depths, or else nearly isothermal; on calm days, they were exponential, when transmission of heat, from surface to bottom, was apparently due to radiation alone, without water circulation. Stability was then high.Diatoms were abundant in both ponds; but planktonic Rotifera and Crustacea differed in the two, apart fromDiaptomus gracilis, which was dominant in both.     

Wild Laboratories of Climate Change: Plants,Phenology, and Global Warming, 1955–1980

Journal of the History of Biology - Phenologists track the seasonal behavior of plants and animals in response to climatic change. During the second half of the twentieth century, phenologists...     

Stature,migration and human welfare in South China, 1850–1930

This paper offers new evidence on human stature in south China during the second half of the 19th century and early part of the 20th. It is based on the records kept by the Government of Canada of 97,123 Chinese immigrants who were required to pay an entry tax between 1885 and 1949. While the study population included both sexes and all ages from infancy to old age, it was largely male, with most ages falling between 12 and 50. The data reveal an increase of over 4 cm in the adult heights of both sexes between 1850 and 1930. They also indicate an upward trend of over 5 cm in the heights of adolescent males. The mean heights of male immigrants fall in the lower range of those reported in other studies of stature in south China. The rising trends contrast with a pattern of stagnation and decline reported in other recent findings but are consistent with other recent evidence of increasing economic growth, real wages, and life expectancy in south China during this period. One likely cause of improved well-being is the influence of the migrants’ remittances on socioeconomic change in south China.     

Synoptic analysis of heat-related mortality in Sydney,Australia, 1993–2001

Exposure to extremely hot weather has been associated with increased mortality. Temporal Synoptic Index is an effective method used to analyze the relationship between mortality and combined weather factors. The aim of this study is to examine the short-term effect of ambient heat on mortality in Sydney during the warmest 6-month period (October-March) for the years 1993-2001. Eleven synoptic categories were related to daily mortality rates in Sydney. Two distinctive warm categories were associated with significantly higher mortality rates. Hot, dry and relatively rare Synoptic Category 7 (SC7) days showed the highest daily mortality rates, followed by warm and humid SC3 days, which occurred more frequently. Increased mortality was more pronounced among the elderly population, and gender-stratified analysis showed women to be more vulnerable. Mortality on the day of the weather event was higher than 1 or 2 days after the adverse synoptic situation. Ozone and particulate matter smaller than 10 microm were found at high concentrations in SC3 and SC7, respectively, but their impact on mortality was not clear. The population of Sydney was found to be vulnerable to high temperatures, with a lower susceptibility than those of some cities in the USA and Europe.     

The making and representation of Muslim identity in Britain: conversations with British Muslim ‘elites’

The common nomenclature of ethnicity, race and colour has been found wanting in theorizing and dealing with the Muslim presence in Britain. This study of 24 prominent British Muslims – including political, policy and academic/intellectual ‘elite’ – explores the making and representation of Muslim identity in Britain. We explore this through three considerations: Muslimness as a ‘master status’; leadership and representation in relation to British Muslims; and the public performance of Muslimness during ‘key moments’.     

Correction to: Wild Laboratories of Climate Change: Plants,Phenology, and Global Warming, 1955–1980

Journal of the History of Biology -     

A Pact with the Embryo: Viktor Hamburger,Holistic and Mechanistic Philosophy in the Development of Neuroembryology, 1927–1955

Viktor Hamburger was a developmental biologist interested in the ontogenesis of the vertebrate nervous system. A student of Hans Spemann at Freiburg in the 1920s, Hamburger picked up a holistic view of the embryo that precluded him from treating it in a reductionist way; at the same time, he was committed to a materialist and analytical approach that eschewed any form of vitalism or metaphysics. This paper explores how Hamburger walked this thin line between mechanistic reductionism and metaphysical vitalism in light of his work on the factors influencing growth of neurons into limb buds, and the discovery of nerve growth factor, work carried out with Rita Levi-Montalcini and Stanley Cohen.     

The discovery of the human chromosome number in Lund, 1955–1956

The correct determination of the human diploid chromosome number as 46, by J-H Tjio and A Levan, at the University of Lund, Sweden, occurred 50 years ago, in December 1955; the finding was published in April 1956, ending a period of more than 30 years when the number had been thought to be 48. The background to the discovery and the surrounding factors are reassessed, as are the reasons why previous investigators persistently misidentified the precise number. The necessity for multiple technological advances, the power of previously accepted conclusions in influencing the interpretation of later results, and the importance of other work already undertaken in Lund, are all relevant factors for the occurrence of this discovery, the foundation for modern human cytogenetics, at this particular time and place.     

TDDFT prediction of UV–vis absorption and emission spectra of tocopherols in different media

We use the TDDFT/PBE0/6-31+G* method to determine the electronic absorption and emission energies, in different media, of the four forms of tocopherol, which differ by the number and the position of methyl groups on the chromanol. Geometries of the ground state S₀ and the first singlet excited state S₁ were optimized in the gas phase, and various solvents. The solvent effect is evaluated using an implicit solvation model (IEF-PCM). Our results are compared to the experimental ones obtained for the vitamin E content in several vegetable oils. For all forms of tocopherols, the HOMO–LUMO first vertical excitation is a π–π* transition. Gas phase and non-polar solvents (benzene and toluene) give higher absorption wavelengths than polar solvents (acetone, ethanol, methanol, DMSO, and water); this can be interpreted by a coplanarity between the O-H group and the chroman, allowing a better electronic resonance of the oxygen lone pairs and the aromatic ring, and therefore giving an important absorption wavelength, whereas the polar solvents give high emission wavelengths comparatively to gas phase and non-polar solvents. Fluorescence spectra permit the determination, the separation, and the identification of the four forms of tocopherols by a large difference in emission wavelength values.

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Graphical Abstract Scheme from process methodological to obtain the absorption and emission spectra for tocopherols

     

Inter-annual rainfall variations and suicide in New South Wales, Australia, 1964–2001

The suicide rate in New South Wales is shown to be related to annual precipitation, supporting a widespread and long-held assumption that drought in Australia increases the likelihood of suicide. The relationship, although statistically significant, is not especially strong and is confounded by strong, long-term variations in the suicide rate not related to precipitation variations. A decrease in precipitation of about 300 mm would lead to an increase in the suicide rate of approximately 8% of the long-term mean suicide rate.     

Acts and practices of citizenship: Muslim women’s activism in the UK

Drawing on the growing literature on Muslim women’s activism, this paper explores grammars of action that frame political mobilizations of Muslim women in the UK. By taking a broad view of political activism, we identify acts and practices of citizenship through which Muslim women activists engage with, reinterpret and challenge social norms. The article critically engages with dominant readings of post-migration minorities’ political mobilization through the lens of citizenship regimes and draws attention to more processual and agency-centred perspectives on citizenship. We focus on two salient themes that Bristol-based Muslim activists were concerned with: mobilizing against violence against women, manifested in the anti-FGM campaign by Integrate Bristol, and attempts to re-negotiate the terms of participation in religious spaces, manifested in claims for more inclusive mosques. In both instances, mobilization was not confined to the local community or national level, but supported by and embedded in related transnational struggles.