To evaluate dispersal patterns and concentrations of macroscopic charcoal particles around Stollo settlements in sub-arctic Scandinavia, their distributions following experimental burning and soil concentrations around an alpine Stollo settlement dating between AD 700 and 1150 were recorded. After the burning 98% of recorded particles were 0.1-0.5 mm long, 90% were dispersed within 40 m of the fire, their mean concentration 40 m from the fire was 0.14±0.08 particles/cm2 and the concentration decreased with increasing distance. At the settlement, 95% of recorded (...) charcoal particles were 0.1-0.5 mm long, 94% were within 40 m of the hearths, the mean concentration declined with increasing distance, and concentrations were much lower than expected from the experimental burning (e.g. 17.6±2.4 particles/cm2, 40 m away). In conclusion: biological archives used for charcoal analysis in archaeological and vegetation history studies should be located ?40 m from settlements, and data obtained from charcoal analyses should be interpreted cautiously. (shrink)

This article considers two films, Elysium (Neil Bloomkamp, 2013) and What Happened to Monday (Tommy Wirkola, 2017), in order to demonstrate that they foreshadow a paradigmatic shift in the relationship between biopolitics and thanatopolitics. According to Michel Foucault, and later Giorgio Agamben and Roberto Esposito, it is chiefly the association of humans with biological danger that causes biopolitics to mutate into thanatopolitics. However, in these two films, humans are construed as an ecological danger that prompt thanatopolitics. They depict futures in (...) which the regimes in power act on ecological threats by brutally micromanaging and killing members of their populations. In this the films unveil how the idea of sustainability as equilibrium can never benefit all, but must always leave some human beings out, either by abandoning them to die or by actively killing them. This is important because it brings to light the risk that the Anthropocene could engender regimes that will kill on different grounds than regimes have in the past. (shrink)

Sonia Greger; Aesthetic Meaning, Journal of Philosophy of Education, Volume 6, Issue 2, 30 May 2006, Pages 137–163, https://doi.org/10.1111/j.1467-9752.1972.tb0.

Sonia Greger; Aesthetic Meaning, Journal of Philosophy of Education, Volume 6, Issue 2, 30 May 2006, Pages 137–163, https://doi.org/10.1111/j.1467-9752.1972.tb0.

The present paper gives an overview of the reflections of and reactions to publishing the results of the first wave of the OECD study Programme for International Student Assessment (PISA) in the Czech Republic and in Germany. The choice of these two countries enables us to document how the same results could be perceived very differently in diverse country contexts and could lead to a different reaction from policy-makers. In spite of large reforms and numerous policy measures being adopted in (...) Germany in reaction to the PISA results, compared with no response from policy-makers in the Czech Republic, it is argued, that in both countries policy-makers failed to tackle the major problem of their educational systems—its selective nature. In the final section we discuss various mis(uses) of PISA and its supranational and global character influencing local policies. (shrink)

Demokratien geraten zunehmend unter Druck. Dabei wird die Bedeutung von Demokratie selbst zum Gegenstand der Auseinandersetzung. Diese Auseinandersetzungen nimmt der vorliegende Band zum Anlass, die Bedeutung von Demokratie grundsätzlich zu untersuchen. Mit dem Begriff der Konstituenzien sind dabei jene wesentlichen Bedingungen gemeint, die Demokratie ausmachen. Die meisten dieser Bedingungen sind normativ. Was Demokratie ist, wird auch und gerade dadurch bestimmt, was Demokratie sein sollte. Damit geht es um jene Normen, deren Verwirklichung politische Praktiken zu demokratischen Praktiken macht. Sind diese Normen (...) nur eingeschränkt verwirklicht, mindert sich der demokratische Gehalt von Politik. Inwieweit ist dann nun aber eigentlich der Fall? Und was können wir dagegen tun? Antworten auf diese Fragen geben einschlägige Vertreterinnen und Vertreter aus Philosophie, Politik- und Rechtswissenschaft. (shrink)

The US Food and Drug Administration’s final Guidance for Industry on the regulation of transgenesis in animal agriculture has paved the way for the commercialization of genetically engineered (GE) farm animals. The production-related diseases associated with extant breeding technologies are reviewed, as well as the predictable welfare consequences of continued emphasis on prolificacy at the potential expense of physical fitness. Areas in which biotechnology could be used to improve the welfare of animals while maintaining profitability are explored along with regulatory (...) schema to improve agency integration in GE animal oversight. (shrink)

Navigation ability varies widely across humans. Prior studies have reported that being younger and a male has an advantage for navigation ability. However, these studies have generally involved small numbers of participants from a handful of western countries. Here, we review findings from our project Sea Hero Quest, which used a video game for mobile and tablet devices to test 3.9 million people on their navigation ability, sampling across every nation-state and from 18 to 99 years of age. Results revealed (...) that the task has good ecological validity and across all countries sufficiently sampled (N = 63), age is linked to a near-linear decline in navigation ability from the early 20s. All countries showed a male advantage, but this varied considerably and could be partly predicted by gender inequality. We found that those who reported growing up in a city were on average worse at navigating than those who grew up outside cities and that navigation performance helped identify those at greater genetic risk of Alzheimer's disease. We discuss the advantages and challenges of using a mobile app to study cognition and the future avenues for understanding individual differences in navigation ability arising from this research. (shrink)

Navigation ability varies widely across humans. Prior studies have reported that being younger and a male has an advantage for navigation ability. However, these studies have generally involved small numbers of participants from a handful of western countries. Here, we review findings from our project Sea Hero Quest, which used a video game for mobile and tablet devices to test 3.9 million people on their navigation ability, sampling across every nation-state and from 18 to 99 years of age. Results revealed (...) that the task has good ecological validity and across all countries sufficiently sampled (N = 63), age is linked to a near-linear decline in navigation ability from the early 20s. All countries showed a male advantage, but this varied considerably and could be partly predicted by gender inequality. We found that those who reported growing up in a city were on average worse at navigating than those who grew up outside cities and that navigation performance helped identify those at greater genetic risk of Alzheimer's disease. We discuss the advantages and challenges of using a mobile app to study cognition and the future avenues for understanding individual differences in navigation ability arising from this research. (shrink)

Long‐term potentiation (LTP) of excitatory synapses is a leading model to explain the concept of information storage in the brain. Multiple mechanisms contribute to LTP, but central amongst them is an increased sensitivity of the postsynaptic membrane to neurotransmitter release. This sensitivity is predominantly determined by the abundance and localization of AMPA‐type glutamate receptors (AMPARs). A combination of AMPAR structural data, super‐resolution imaging of excitatory synapses, and an abundance of electrophysiological studies are providing an ever‐clearer picture of how AMPARs are (...) recruited and organized at synaptic junctions. Here, we review the latest insights into this process, and discuss how both cytoplasmic and extracellular receptor elements cooperate to tune the AMPAR response at the hippocampal CA1 synapse. (shrink)

We consider various effects that are encountered in matter wave interference experiments with massive nanoparticles. The text-book example of far-field interference at a grating is compared with diffraction into the dark field behind an opaque aperture, commonly designated as Poisson’s spot or the spot of Arago. Our estimates indicate that both phenomena may still be observed in a mass range exceeding present-day experiments by at least two orders of magnitude. They both require, however, the development of sufficiently cold, intense and (...) coherent cluster beams. While the observation of Poisson’s spot offers the advantage of non-dispersiveness and a simple distinction between classical and quantum fringes in the absence of particle wall interactions, van der Waals forces may severely limit the distinguishability between genuine quantum wave diffraction and classically explicable spots already for moderately polarizable objects and diffraction elements as thin as 100 nm. (shrink)

Software systems play an ever more important role in our lives and software engineers and their companies find themselves in a position where they are held responsible for ethical issues that may arise. In this paper, we try to disentangle ethical considerations that can be performed at the level of the software engineer from those that belong in the wider domain of business ethics. The handling of ethical problems that fall into the responsibility of the engineer has traditionally been addressed (...) by the publication of Codes of Ethics and Conduct. We argue that these Codes are barely able to provide normative orientation in software development. The main contribution of this paper is, thus, to analyze the normative features of Codes of Ethics in software engineering and to explicate how their value-based approach might prevent their usefulness from a normative perspective. Codes of Conduct cannot replace ethical deliberation because they do not and cannot offer guidance because of their underdetermined nature. This lack of orientation, we argue, triggers reactive behavior such as “cherry-picking,” “risk of indifference,” “ex-post orientation,” and the “desire to rely on gut feeling.” In the light of this, we propose to implement ethical deliberation within software development teams as a way out. (shrink)

El objetivo del presente trabajo es describir las percepciones de estudiantes y profesores de pregrado en traducción inglés-español-portugués acerca del desarrollo de la escritura académica en sus lenguas de formación. Para este propósito, se conceptualiza el término biliteracidad (Hornberger, 1990; 2003; 2013) relacionándolo con las características identificadas por los participantes con base en sus experiencias con la escritura de géneros académicos en su primera lengua (L1), el español, y en las lenguas adicionales (LA), portugués e inglés. El diseño metodológico se (...) fundamenta en un estudio de caso en la primera etapa de un estudio longitudinal. Para este artículo, han sido seleccionados datos obtenidos en entrevistas semiestructuradas que buscaban explorar cuáles contenidos, en qué medios y cómo se conforman los contextos de escritura requeridos para la producción de significados en las referidas lenguas en la universidad. Las respuestas fueron clasificadas en dos categorías: contextos de escritura y el dominio de los géneros requerido por la universidad. Los resultados destacados revelan que los estudiantes transitan por contextos de biliteracidad inglésespañol-portugués, según los propósitos específicos de sus tareas con limitaciones para aproximar sus producciones al registro académico y correlacionar sus experiencias de escritura con sus lenguas de formación. En cuanto a los profesores, se constata la preocupación por la práctica de escritura vinculada con sus asignaturas en un abordaje esencialmente monolingüe. Se resaltan las implicaciones lingüísticas y pedagógicas acerca del desarrollo particular y compartido de las experiencias con la escritura académica tanto en las LA como en la L1 de los participantes. (shrink)

Hamlet’s character sets, under different shapes and extents, the benchmark against which a large part of the European philosophy of the very long «short twentieth-century» behind us has had to measure. In the name of Hamlet as the most enigmatic among Shakespeare’s creatures, even Europe, its spirit and destiny, is identified, according to the well-known claim by Paul Valery.Common trait to a big part of these interpretations – from the juvenile works of Pavel Florenskij and Lev S. Vygotskij to Carl (...) Schmitt’s Hamlet oder Ekuba. Der Einbruch der Zeit in das Spiel – is offered by the detection, in Hamlet’s figure, of the contradiction inherent to an epochal transition: the time of an unresolved passage between two ages that only knows the endless pain of an “interim”. My paper concerns the possibility to interpret Hamlet’s time as the time of an “interim” in light of Benjamin’s claims about Shakespeare’s drama contained in his book on the German Trauerspiel.While Florenskij interprets Hamlet’s time as tragic and the figure of Hamlet as a tragic one, in my essay - moving from some observations on the " Hamlet Problem " by the young Franz Rosenzweig - I consider the original Benjaminian thesis about the character and the drama of Hamlet as the end of the modern Trauerspiel. Starting from a statement by Theodor Adorno in the famed Hornberger Brief to Benjamin of August 2, 1935, I outline, therefore, how Benjamin characterizes the figure of Hamlet. This, from his early writings on the relationship between tragedy and Trauerspiel up to the great book on the Origin of the German Trauerspiel. In the frame of Benjamin’s interpretation, exactly by virtue of its distance from the thesis on the duality of tragedy, the Shakespearian theatrum of consciousness, paradigmatically represented in the figure of Hamlet and in the intimately dialectic character of his drama, is accounted for as necessary correlate of the Cartesian’s theatrum of consciousness. From a theoretical point of view, the Benjaminian characterization of Hamlet's figure reveals, therefore, something of the nature of modern consciousness and of consciousness in general in relation to the problem of truth and its representation. Hence the end of modern Trauerspiel coincides with the original incompleteness of its time. Consequently, I also claim Hamlet's dramatic figure to represent the aporetic characters of modern politics. This contrasts the thesis of Carl Schmitt who speaks, instead, of the Shakespearean drama as an expression of a pre-modern barbaric time. (shrink)