Expanded GHOST database

In this study we review a global set of alkenone- and foraminiferal Mg/Ca-derived sea surface temperatures (SST) records from the Holocene and compare them with a suite of published Eemian SST records based on the same approach. For the Holocene, the alkenone SST records belong to the actualized GHOST database (Kim, J.-H., Schneider R.R., 2004). The actualized GHOST database not only confirms the SST changes previously described but also documents the Holocene temperature evolution in new oceanic regions such as the Northwestern Atlantic, the eastern equatorial Pacific, and the Southern Ocean. A comparison of Holocene SST records stemming from the two commonly applied paleothermometry methods reveals contrasting - sometimes divergent - SST evolution, particularly at low latitudes where SST records are abundant enough to infer systematic discrepancies at a regional scale. Opposite SST trends at particular locations could be explained by out-of-phase trends in seasonal insolation during the Holocene. This hypothesis assumes that a strong contrast in the ecological responses of coccolithophores and planktonic foraminifera to winter and summer oceanographic conditions is the ultimate reason for seasonal differences in the origin of the temperature signal provided by these organisms. As a simple test for this hypothesis, Eemian SST records are considered because the Holocene and Eemian time periods experienced comparable changes in orbital configurations, but had a higher magnitude in insolation variance during the Eemian. For several regions, SST changes during both interglacials were of a similar sign, but with higher magnitudes during the Eemian as compared to the Holocene. This observation suggests that the ecological mechanism shaping SST trends during the Holocene was comparable during the penultimate interglacial period. Although this "ecology hypothesis" fails to explain all of the available results, we argue that any other mechanism would fail to satisfactorily explain the observed SST discrepancies among proxies.

La valeur monde : traduction et mondialisation dans Anil's Ghost de Michael Ondaatje

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

The Enlightening Supernatural: Ghost Stories in the Late Eighteenth-Century Germany

This dissertation explores the place of ghosts in late eighteenth-century German texts, where they appear with surprising frequency despite widespread disbelief in their ontological reality. These ghosts could simply be lingering remnants of superstition in an age where they no longer belong, but my project argues that they play a central role in the Enlightenment and its ideal of progress. The key texts analyzed in this context include three versions of the story of the Weiße Frau, as well as works by Immanuel Kant, Karl Philipp Moritz, Friedrich Schiller, and Johann Wolfgang von Goethe. In various ways, these texts demonstrate how the presentation of a ghost creates new possibilities in philosophy and aesthetics, as well as opportunities for critique. For some, the ghostly encounter produces an “Enlightening” suspense, disrupting the normal conditions of one’s understanding and creating a demand for resolution that propels one towards the future. Some recognized a dangerous manipulative potential in such suspense, and they used ghost stories to critique Enlightenment thought or imagine alternative aesthetic models. In all of these works, the ghost does not function simply as a relic of the past that needs to be left behind; it features prominently as a means of considering the present and imagining the future.

The relationship between the Enlightenment and superstitious beliefs has either been oversimplified as a basic opposition, or complicated by the recognition that the commitment to reason works as a new form of superstition. Prior scholarship has recognized the German ghost story as a primarily nineteenth-century phenomenon. This dissertation uncovers the roots of the German ghost story in unlikely texts from the eighteenth century and suggests that the relationship between ghostly apparitions and the Enlightenment was more complementary than oppositional. Ghosts do not only represent the persistence of the past, they also disrupt the normal conditions of the present in a way that enables progress towards new possibilities in aesthetics and thought.

La valeur monde : traduction et mondialisation dans Anil's Ghost de Michael Ondaatje

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

A timescale for diatom evolution based on four molecular markers: reassessment of ghost lineages and major steps defining diatom evolution.

ABSTRACT. – Phylogenies and molecular clocks of the diatoms have largely been inferred from SSU rDNA sequences. A new phylogeny of diatoms was estimated using four gene markers SSU and LSU rDNA rbcL and psbA (total 4352 bp) with 42 diatom species. The four gene trees analysed with a maximum likelihood (ML) and Baysian (BI) analysis recovered a monophyletic origin of the new diatom classes with high bootstrap support, which has been controversial with single gene markers using single outgroups and alignments that do not take secondary structure of the SSU gene into account. The divergence time of the classes were calculated from a ML tree in the MultliDiv Time program using a Bayesian estimation allowing for simultaneous constraints from the fossil record and varying rates of molecular evolution of different branches in the phylogenetic tree. These divergence times are generally in agreement with those proposed by other clocks using single genes with the exception that the pennates appear much earlier and suggest a longer Cretaceous fossil record that has yet to be sampled. Ghost lineages (i.e. the discrepancy between first appearance (FA) and molecular clock age of origin from an extant taxon) were revealed in the pennate lineage, whereas those ghost lineages in the centric lineages previously reported by others are reviewed and referred to earlier literature.

A timescale for diatom evolution based on four molecular markers: reassessment of ghost lineages and major steps defining diatom evolution.

ABSTRACT. – Phylogenies and molecular clocks of the diatoms have largely been inferred from SSU rDNA sequences. A new phylogeny of diatoms was estimated using four gene markers SSU and LSU rDNA rbcL and psbA (total 4352 bp) with 42 diatom species. The four gene trees analysed with a maximum likelihood (ML) and Baysian (BI) analysis recovered a monophyletic origin of the new diatom classes with high bootstrap support, which has been controversial with single gene markers using single outgroups and alignments that do not take secondary structure of the SSU gene into account. The divergence time of the classes were calculated from a ML tree in the MultliDiv Time program using a Bayesian estimation allowing for simultaneous constraints from the fossil record and varying rates of molecular evolution of different branches in the phylogenetic tree. These divergence times are generally in agreement with those proposed by other clocks using single genes with the exception that the pennates appear much earlier and suggest a longer Cretaceous fossil record that has yet to be sampled. Ghost lineages (i.e. the discrepancy between first appearance (FA) and molecular clock age of origin from an extant taxon) were revealed in the pennate lineage, whereas those ghost lineages in the centric lineages previously reported by others are reviewed and referred to earlier literature.

Massive loggerhead nest predation by ghost crabs in Boavista Island (Cape Verde): implications of the absence of large predators.

[EN] The impact of nest predators on sea turtle hatching success is highly variable depending on predator abundance and also on interactions among different predators. Food web connectivity usually makes it difficult to understand predator-prey interactions and develop efficient conservation strategies. In the Cape Verde archipelago there is an important nesting area for loggerheads where ghost crabs are the only described nest predator. We have studied the impact of ghost crabs on loggerhead nests on this threatened population as well as the efficiency of several management practices to reduce this impact.

Ghost Machine: a Sound Performance

Ghost Machine is an encounter between a person and a machine in a suburban shed. The machine reveals the story of a man haunted by an image that seems to shift and change as it sits on the wall of his study. In an attempt to locate the origins of the image he builds a viewing machine to finally confront it. Ghost Machine is based on The Mezzotint (1904) by M.R James, retold as a suburban ghost story. It was part of SENSE at Mayfest in Bristol between 24th - 26th May 2013.

Ghost Tree Social

GHOST TREE SOCIAL tells a coming out story of sorts. In terms of style, many of the poems are short, imagistic lyrics, though some are extended catalogues. Specific natural images—lakes, rivers, and snow—are often contrasted with cultural markers. The imagistic poems are thinking through the work of Sylvia Plath. The catalogue poems shift between diaristic, narrative, and critical modes, responding to the poetry of Elizabeth Bishop and the essays of Edouard Glissant. Voice-driven fragments disrupt the more traditional lyric poems. The fragments fall between formal lyrics like confetti from a gay club’s rafters; or the fragments hold the lyric poems in bondage. The lyric poem then re-signifies as form through resonances with the other discursive and poetic form of the fragment. Following critical writers such as Adrienne Rich and Audre Lorde, the re-signification of lyric form reflects the need for new signs for self and community organized queerly as opposed to more typical binary categories—man or woman, living or dead, rich or poor, white or black—where the first term is privileged and the second term often denigrated.

Gold Science Ghost Drawing #1

Mixed media. 78" x 56", Gold Science Ghost Drawings Series.

Gold Science Ghost Drawing #2

Mixed media. 67" x 50", Gold Science Ghost Drawings Series.

Gold Science Ghost Drawing #5

Mixed media. 105½" x 42", Gold Science Ghost Drawings Series. Private Collection

An experimental study of gill net and trammel net 'ghost fishing' off the Algarve (southern Portugal)

Four 100 m lengths of both monofilament gill nets and trammel nets were deployed at depths between 15 and 18 m off the coast of the Algarve (south of Portugal) between April 1995 and June 1996. The nets were set on a natural rocky bottom with one end cut loose to simulate lost nets. Changes in net structure (net height, effective fishing area, movement, colonisation, wear and tear) and their catches (species, sizes, numbers, and biomass) were monitored by divers. Similar patterns were observed in all the nets, with a sharp decrease in net height and effective fishing area, and an increase in visibility within the first few weeks. Net movement was negligible except in the case of interference from other fishing gears. Catch rates were initially comparable to normally fished gill nets and trammel nets in this area, but decreased steadily over time. No sea birds, reptiles or mammals were caught in any of the 8 nets. Catches were dominated by fish (89 % by number, at least 27 species), in particular by sea breams (Sparidae) and wrasses (Labridae). Under the conditions experienced throughout the study the fishing Lifetime of a 'lost' net is between 15 and 20 wk. Based on an exponential model, we estimated that 100 m lengths of gill net and trammel net will catch 314 and 221 fish respectively over a 17 wk period. However, we consider this to be an underestimate due to high rates of predation and scavenging by octopuses, cuttlefish, moray eels, conger eels, and other fish such as the wrasse Coris julis. When the nets were surveyed in the following spring, 8 to 11 mo after being deployed, they were found to be completely destroyed or heavily colonised by algae and had become incorporated into the reef.

Introduction : bringing back theory

In a report in the New York Times about a public symposium on the future of theory held at University of Chicago in 2002, staff writer Emily Eakin suggests that theory appears to have taken a back seat to more pressing current affairs – the Bush Administration, Al Qaeda, Iraq. Further, she reports that the symposium’s panel of high-profile theorists and scholars, including Homi Bhabha, Stanley Fish, Fredric Jameson, seemed reticent to offer their views on what is often touted as the demise or irrelevance of theory. The symposium and other commentaries on the topic of theory have prompted the view that the ‘Golden Age of Theory’ has passed and we are now in a ‘Post-Theory Age’. Given these pronouncements, we need to ask – Does theory matter any longer? Is it time for the obituary? Or are reports of the death of theory greatly exaggerated? The question remains whether to mourn or celebrate the demise of theory, and whether the body has in fact breathed its last. The title of this Introduction – ‘Bringing back theory’ – suggests a resurrection, or perhaps a haunting, as if the funeral has passed and, like Banquo’s ghost, theory returns to unsettle or disturb the celebration. It also suggests an entreaty, or perhaps a return performance. Rather than settle on one meaning, one interpretation, we are happy for all possibilities to coexist. The coexistence of different theories, different approaches, different interpretations also reflects the state of literary and cultural studies generally and children’s literature criticism in particular. No single theory or viewpoint predominates or vies for hegemony. Yet, one further question lingers – what is theory?