245 research outputs found
Robbie Burns Night
No full textPhotograph - A crowd at Robbie Burns night at Royal Canadian Legion, Athabasca Branch No. 103, Athabasca, Alberta. February 6, 196
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Repeated short-term exposure to diesel exhaust reduces honey bee colony fitness
No full textProduction of insect-pollinated crops is often reliant on honey bee (Apis mellifera) pollination services. Colonies can be managed and moved to meet the demands of modern intensified monoculture farming systems. Increased colony mortalities have been observed, which are thought be caused by interacting factors including exposure to pesticides, parasites, viruses, agricultural intensification, and changes in global and regional climate. However, whilst common tropospheric air pollutants (e.g. NOx, particulate matter etc) are known to cause a range of negative effects on human health, there is little evidence of their impact on the health of A. mellifera. This study investigates the effects of exposure to diesel exhaust on A. mellifera, both at the level of individual foragers and on the whole colony. We exposed a series of colonies to diesel exhaust fumes for two hours a day over the course of three weeks and contrasted their performance to a series of paired control colonies located at the same field site. We investigated markers of neuronal health in the brains of individual foragers and measured the prevalence of common viruses. Electronic counters monitored daily colony activity patterns and pollen samples from returning foragers were analysed to investigate plant species richness and diversity. The amounts of honey, brood and pollen in each colony were measured regularly. We demonstrated an upregulation of the synapse protein Neurexin 1 in forager brains repeatedly exposed to diesel exhaust. Furthermore, we found that colonies exposed to diesel exhaust lost colony weight after the exposure period until the end of the summer season, whereas control colonies gained weight towards the end of the season. Further investigations are required, but we hypothesise that such effects on both individual foragers and whole colony fitness parameters could ultimately contribute to winter losses of honey bee colonies, particularly in the presence of additional stressors
Truth, purification and power: Foucault's genealogy of purity and impurity in and after The Will to Know lectures
No full textFoucault’s 1970–71 lectures at the Collège de France, The Will to Know, highlight the significance of themes of purity and impurity in Western thought. Reflecting on these themes coincided with the emergence of Foucault’s theory of power. This article presents the first analysis of Foucault’s investigation of purity and impurity in The Will to Know lectures, identifying the distinctive theory Foucault offers of purity as a discursive apparatus addressing correspondence between the subject and the truth through the image of relative integrity or mixture. It then traces Foucault’s subsequent reflections on these themes in his later writings on disciplinary power. The implications of Foucault’s position are considered; the article will close by putting Foucault’s ideas in dialogue with those of Kristeva, and in considering the role that purity and impurity may play in resistance
Data from: Acute exposure to diesel exhaust induces central nervous system stress and altered learning and memory in honey bees
No full textFor effective foraging, many insect pollinators rely on the ability to learn and recall floral odours, behaviours that are associated with a complex suite of cellular processes. Here, we investigated how acute exposure to a high-dose of diesel exhaust (containing 19.8 and 17.5 ppm of NO and NO2, respectively) affected associative learning behaviour of honey bees (Apis mellifera) and expression of a ubiquitous heat shock protein, HSP70, in their central nervous system (CNS). To determine whether exposure to diesel exhaust would alter their tolerance to a subsequent abiotic stress, we further subjected individuals to heat stress. Diesel exhaust exposure decreased honey bees’ ability to learn and recall a conditioned odour stimulus. Whilst there was no significant difference in CNS HSP70 expression between honey bees exposed to either diesel exhaust or clean air across the entire duration of the experiment (3.5 h), there was a significant effect of time and a significant interaction between exposure treatment and time. This interaction was investigated using correlation analyses, which demonstrated that only in the diesel exhaust exposed honey bees was there a significant positive correlation between HSP70 expression and time. Furthermore, there was a 44% reduction in honey bee individuals that were able to recall the odour 72 h after diesel exposure compared with clean air control individuals. Moreover, diesel exhaust affected A. mellifera in a way that reduced their ability to survive a second subsequent stressor. Such negative effects of air pollution on learning, recall, and stress tolerance has potential to reduce foraging efficiency and pollination success of individual honey bees.,Reitmayer_et_al_2019_honey_bee_diesel_pollution_Sci_RepThis zip file includes five separate .csv files. Each file contains the data used to create one graph and it's accompanying statistical analysis for the following paper: Reitmayer CM, Ryalls JMW, Farthing E, Jackson CW, Girling RD, Newman TA. 2019. Acute exposure to diesel exhaust induces central nervous system stress and altered learning and memory in honey bees. Sci. Rep.All_manuscript_data.zip</span
Tres Olas de Globalizacion: historia de una conciencia global (Alianz Enxayo) / Three Waves of Globalization: history of a global conscience (Spanish Edition)
No full text[Spanish] El concepto de globalización se considera algo bastante moderno pero según el autor de este libro, no es así. De hecho la humanidad ha experimentado tres diferentes oleadas de globalización en los últimos cinco siglos. Robbie Robertson hace una reinterpretación de la historia de la humanidad como un proceso de globalización creciente, que se ha acelerado en los últimos cinco siglos. Cada una de ellas ha cambiado el contexto en el que viven los humanos y la forma en que se ven a sí mismos y al mundo. En concreto, ha hecho posible el desarrollo de una conciencia global. Pero todavía es una conciencia débil y vulnerable y para entender la importancia de una conciencia global hay que contextualizar la globalización históricamente. Y eso es lo que hace el autor de este libro. Sobre todo conocer qué problemas internacionales, guerras o crisis económicas ha provocado cada ola de globalización y aprender las lecciones de la historia para analizar si la actual ola de globalización podría conducir en la misma dirección.
[English] The concept of globalization is considered quite modern but as the author of this book, it is not. In fact, humanity has experienced three distinct waves of globalization in the last five centuries. Robbie Robertson makes a reinterpretation of history as a process of increasing globalization, which has accelerated over the past five centuries. Each of them has changed the context in which humans live and how they view themselves and the world. Specifically, it has made possible the development of a global consciousness. But awareness is still weak and vulnerable and to understand the importance of global awareness should be historically contextualize globalization. And that is what the author of this book. Especially knowing what international problems, wars or economic crises caused each wave of globalization and learning the lessons of history to analyze whether the current wave of globalization could result in the same direction
Tres Olas de Globalizacion: historia de una conciencia global (Alianz Enxayo) / Three Waves of Globalization: history of a global conscience (Spanish Edition)
No full text[Spanish] El concepto de globalización se considera algo bastante moderno pero según el autor de este libro, no es así. De hecho la humanidad ha experimentado tres diferentes oleadas de globalización en los últimos cinco siglos. Robbie Robertson hace una reinterpretación de la historia de la humanidad como un proceso de globalización creciente, que se ha acelerado en los últimos cinco siglos. Cada una de ellas ha cambiado el contexto en el que viven los humanos y la forma en que se ven a sí mismos y al mundo. En concreto, ha hecho posible el desarrollo de una conciencia global. Pero todavía es una conciencia débil y vulnerable y para entender la importancia de una conciencia global hay que contextualizar la globalización históricamente. Y eso es lo que hace el autor de este libro. Sobre todo conocer qué problemas internacionales, guerras o crisis económicas ha provocado cada ola de globalización y aprender las lecciones de la historia para analizar si la actual ola de globalización podría conducir en la misma dirección.
[English] The concept of globalization is considered quite modern but as the author of this book, it is not. In fact, humanity has experienced three distinct waves of globalization in the last five centuries. Robbie Robertson makes a reinterpretation of history as a process of increasing globalization, which has accelerated over the past five centuries. Each of them has changed the context in which humans live and how they view themselves and the world. Specifically, it has made possible the development of a global consciousness. But awareness is still weak and vulnerable and to understand the importance of global awareness should be historically contextualize globalization. And that is what the author of this book. Especially knowing what international problems, wars or economic crises caused each wave of globalization and learning the lessons of history to analyze whether the current wave of globalization could result in the same direction
The Savage and Modern Self: North American Indians in Eighteenth-Century British Literature and Culture
No full textThe Savage and Modern Self examines the representations of North American "Indians" in novels, poetry, plays, and material culture from eighteenth-century Britain. Author Robbie Richardson argues that depictions of "Indians" in British literature were used to critique and articulate evolving ideas about consumerism, colonialism, "Britishness," and, ultimately, the "modern self" over the course of the century. Considering the ways in which British writers represented contact between Britons and "Indians," both at home and abroad, the author shows how these sites of contact moved from a self-affirmation of British authority earlier in the century, to a mutual corruption, to a desire to appropriate perceived traits of "Indianess." Looking at texts exclusively produced in Britain, The Savage and Modern Self reveals that "the modern" finds definition through imagined scenes of cultural contact. By the end of the century, Richardson concludes, the hybrid Indian-Brition emerging in literature and visual culture exemplifies a form of modern, British masculinity
FIGURE 2 in Repatriating a lost name: notes on McClelland and Griffith's Cobitis boutanensis (Cypriniformes: Nemacheilidae)
No full textFIGURE 2. Map of Griffith's expedition (base map from Griffith and McClelland 1848) through Bhutan, and a generalized range map of Aborichthys boutanensis in southern Bhutan (lighter oval) based on observations of first author (RJT). Bhutan's modern border is superimposed (green area). The brown line is the path taken by Griffith.Published as part of Thoni, Ryan J. & Hart, Robbie, 2015, Repatriating a lost name: notes on McClelland and Griffith's Cobitis boutanensis (Cypriniformes: Nemacheilidae), pp. 291-294 in Zootaxa 3999 (2) on page 293, DOI: 10.11646/zootaxa.3999.2.8, http://zenodo.org/record/24188
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Acute exposure to diesel exhaust induces central nervous system stress and altered learning and memory in honey bees
No full textFor effective foraging, many insect pollinators rely on the ability to learn and recall floral odours, behaviours that are associated with a complex suite of cellular processes. Here, we investigated how acute exposure to a high-dose of diesel exhaust (containing 19.8 and 17.5 ppm of NO and NO2, respectively) affected associative learning behaviour of honey bees (Apis mellifera) and expression of a ubiquitous heat shock protein, HSP70, in their central nervous system (CNS). To determine whether exposure to diesel exhaust would alter their tolerance to a subsequent abiotic stress, we further subjected individuals to heat stress.
Diesel exhaust exposure decreased honey bees’ ability to learn and recall a conditioned odour stimulus. Whilst there was no significant difference in CNS HSP70 expression between honey bees exposed to either diesel exhaust or clean air across the entire duration of the experiment (3.5 h), there was a significant effect of time and a significant interaction between exposure treatment and time. This interaction was investigated using correlation analyses, which demonstrated that only in the diesel exhaust exposed honey bees was there a significant positive correlation between HSP70 expression and time. Furthermore, there was a 44% reduction in honey bee individuals that were able to recall the odour 72 h after diesel exposure compared with clean air control individuals. Moreover, diesel exhaust affected A. mellifera in a way that reduced their ability to survive a second subsequent stressor. Such negative effects of air pollution on learning, recall, and stress tolerance has potential to reduce foraging efficiency and pollination success of individual honey bees
FIGURE 1 in Repatriating a lost name: notes on McClelland and Griffith's Cobitis boutanensis (Cypriniformes: Nemacheilidae)
No full textFIGURE 1. Comparison of Aborichthys boutanensis holotype to other cobitids. (a) Aborichthys boutanensis holotype, BMNH1860.3.14.775, 104.7 mm SL; (b) A. boutanensis, CNR (College of Natural Resources, Bhutan) 13551, 101.6 mm SL; (c) drawing of A. boutanensis, labeled Aborichthys kempi in Chaudhuri (1913); (d) Paracobitis atrakensis from Esmaeili et al (2014) with permission of the author; mouth structures of (e) A. boutanensis, holotype; (f) A. boutanensis, CNR 13551; and (g) A. boutanensis from Chaudhuri (1913).Published as part of Thoni, Ryan J. & Hart, Robbie, 2015, Repatriating a lost name: notes on McClelland and Griffith's Cobitis boutanensis (Cypriniformes: Nemacheilidae), pp. 291-294 in Zootaxa 3999 (2) on page 292, DOI: 10.11646/zootaxa.3999.2.8, http://zenodo.org/record/24188
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