Step by step: reconstruction of terrestrial animal movement paths by dead-reckoning

BACKGROUND: Research on wild animal ecology is increasingly employing GPS telemetry in order to determine animal movement. However, GPS systems record position intermittently, providing no information on latent position or track tortuosity. High frequency GPS have high power requirements, which necessitates large batteries (often effectively precluding their use on small animals) or reduced deployment duration. Dead-reckoning is an alternative approach which has the potential to 'fill in the gaps' between less resolute forms of telemetry without incurring the power costs. However, although this method has been used in aquatic environments, no explicit demonstration of terrestrial dead-reckoning has been presented.

RESULTS: We perform a simple validation experiment to assess the rate of error accumulation in terrestrial dead-reckoning. In addition, examples of successful implementation of dead-reckoning are given using data from the domestic dog Canus lupus, horse Equus ferus, cow Bos taurus and wild badger Meles meles.

CONCLUSIONS: This study documents how terrestrial dead-reckoning can be undertaken, describing derivation of heading from tri-axial accelerometer and tri-axial magnetometer data, correction for hard and soft iron distortions on the magnetometer output, and presenting a novel correction procedure to marry dead-reckoned paths to ground-truthed positions. This study is the first explicit demonstration of terrestrial dead-reckoning, which provides a workable method of deriving the paths of animals on a step-by-step scale. The wider implications of this method for the understanding of animal movement ecology are discussed.

Wanted : dead or alive. Women as bodies in Shakespeare's Pericles, King Lear and Macbeth

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

L’affect de dégoût dans une perspective transmédiale : le cas de The walking dead

Lorsque l’on s’intéresse au dégoût comme forme d’affect, on remarque que son application abonde au niveau des études cinématographiques et des arts visuels. Par contre, peu de chercheurs se sont intéressés à son analyse à travers les médias dont l’institutionnalisation académique est plus récente, comme la bande dessinée, la télésérie et le jeu vidéo. Ce mémoire a pour objectif d’étendre la pratique des études du dégoût comme affect sur ces médias, en s’attardant sur l’analyse de certaines composantes de la franchise transmédiatique The Walking Dead. De plus, comme ce corpus est marqué par une transmédialité qui dépasse les simples récurrences narratives, ce mémoire veut également produire un modèle d’analyse capable de déceler les structures génératives du dégoût qui tendent à migrer ou être partagées entre les médias de la franchise. Ce modèle sera conçu dans un premier temps par l’établissement d’un dialogue entre les études de l’affect appliquées au cinéma et aux arts visuels et les études sur l’intermédialité. La fonctionnalité de ce modèle sera ensuite testée à travers son application sur la bande dessinée, la télésérie et l’un des jeux vidéo de la franchise The Walking Dead.

Shadows of the living dead-potential dangers of unsafe encounters between development psychology and neurosceince. ' Sombras de los muertos vivientes : riesgos de las relaciones inseguras entre psicología y neurociencia del desarrollo'

Resumen basado en el del autor

Cuidando a los muertos: las mujeres medievales en las pampa fúnebres familiares (Taking care to the Dead: the medieval women in the family funeral Pompas )

Previous studies of burial practice in the later medieval period have concluded that mortuary custom was regulated strictly by male religious authorities, resulting in a uniformity of practice that held little potential for the expression of personal identity or family relationships. This paper challenges previous approaches through a close study of the material culture of the medieval grave. Archaeological and pictorial sources combine to suggest that women were responsible for the preparation of the body for burial. This reassessment of medieval burial yields new evidence for female undertaking as an extension of the social role of mothering.

Magic for the dead? The archaeology of magic in later medieval burials

THIS PAPER EXAMINES patterns in the placement of apotropaic objects and materials in high- to late-medieval burials in Britain (11th to 15th centuries). It develops an interdisciplinary classification to identify: (1) healing charms and protective amulets; (2) objects perceived to have occult natural power; (3) 'antique' items that were treated as possessing occult power; and (4) rare practices that may have been associated with the demonic magic of divination or sorcery. Making comparisons with amulets deposited in conversion-period graves of the 7th to 9th centuries it is argued that the placement of amulets with the dead was strategic to Christian belief, intended to transform or protect the corpse. The conclusion is that material traces of magic in later medieval graves have a connection to folk magic, performed by women in the care of their families, and drawing on knowledge of earlier traditions. This popular magic was integrated with Christian concerns and tolerated by local clergy, and was perhaps meant to heal or reconstitute the corpse, to ensure its reanimation on judgement day, and to protect the vulnerable dead on their journey through purgatory.