Search results for: Christopher J. Watson

Items from 1 to 20 out of 31 results

article

The taphonomic impact of scavenger guilds in peri‐urban and rural regions of central and southern Alberta. Part I – Identification of forensically relevant vertebrate scavengers

Shari L. Forbes, Yvonne Kjorlien, Christopher J. Watson

Journal of Forensic Sciences > 69 > 2 > 415 - 429

As a body decomposes in an outdoor environment, numerous taphonomic agents can act on the process of human decomposition. It is important to understand the impact of these agents as they can vary the rate of soft and hard tissue loss which may alter postmortem interval estimations. One taphonomic factor which has not been extensively investigated in many regions of the world, including Canada, are...

article

Seasonal impact of scavenger guilds as taphonomic agents in central and northern Ontario, Canada

Shari L. Forbes, Clifford Samson, Christopher J. Watson

Journal of Forensic Sciences > 67 > 6 > 2203 - 2217

The process of human decomposition is driven by biological decomposers, mainly bacteria, vertebrates, and invertebrate scavengers. When vertebrate scavengers have access to a body, they can considerably accelerate decomposition through consumption of soft tissue and dispersal of skeletal elements. Presently, there are limited data available on vertebrate scavenging activity in Canada, particularly...

article

The taphonomic impact of scavenger guilds in southern Quebec during summer and fall in two distinct habitats

Karelle Séguin, Ariane Durand‐Guévin, Catherine Lavallée, Frédérique Ouimet, more

Journal of Forensic Sciences > 67 > 2 > 460 - 470

Decomposition of human remains is a complex process impacted by many intrinsic and extrinsic factors. A less‐studied extrinsic factor in forensic taphonomy are the scavengers that consume soft and hard tissue. Scavengers physically degrade and remove soft tissue, disperse, and destroy skeletal elements, which can make locating remains challenging. While invertebrate activity has been largely investigated,...

article

Detecting grave sites from surface anomalies: A longitudinal study in an Australian woodland

Christopher J. Watson, Maiken Ueland, Eline M. J. Schotsmans, Jon Sterenberg, more

Journal of Forensic Sciences > 66 > 2 > 479 - 490

Forensic investigations of single and mass graves often use surface anomalies, including changes to soil and vegetation conditions, to identify potential grave locations. Though numerous resources describe surface anomalies in grave detection, few studies formally investigate the rate at which the surface anomalies return to a natural state; hence, the period the grave is detectable to observers....

article

Ecological and economic benefits of low‐intensity urban lawn management

Christopher J. Watson, Léonie Carignan‐Guillemette, Caroline Turcotte, Vincent Maire, more

Journal of Applied Ecology > 57 > 2 > 436 - 446

Intensive management of urban lawns is globally widespread, predominantly for aesthetic reasons. However, a growing body of knowledge demonstrates negative ecological and environmental effects of this practice. We present a meta‐analysis of North American and European studies from 2004 to 2019, which incorporates three previously unpublished datasets from eastern Canada, to investigate how mowing...

article

Outcome after heart transplantation from donation after circulatory-determined death donors

Simon Messer, Aravinda Page, Richard Axell, Marius Berman, more

The Journal of Heart and Lung Transplantation > 2017 > 36 > 12 > 1311-1318

The requirement for heart transplantation is increasing, vastly outgrowing the supply of hearts available from donation after brain death (DBD) donors. Transplanting hearts after donation after circulatory-determined death (DCD) may be a viable additive alternative to DBD donors. This study compared outcomes from the largest single-center experience of DCD heart transplantation against matched DBD...

article

Functional assessment and transplantation of the donor heart after circulatory death

Simon J. Messer, Richard G. Axell, Simon Colah, Paul A. White, more

The Journal of Heart and Lung Transplantation > 2016 > 35 > 12 > 1443-1452

After a severe shortage of brain-dead donors, the demand for heart transplantation has never been greater. In an attempt to increase organ supply, abdominal and lung transplant programs have turned to the donation after circulatory-determined death (DCD) donor. However, because heart function cannot be assessed after circulatory death, DCD heart transplantation was deemed high risk and never adopted...

chapter

A Neurochemical Perspective on States of Consciousness

Christopher J. Watson, Helen A. Baghdoyan, Ralph Lydic

Contemporary Clinical Neuroscience > Suppressing the Mind > 33-80

The foundation of anesthesia rests upon discoveries made by chemists. This is illustrated by Joseph Preistly’s and Humphrey Davy’s research on nitrous oxide; Paracelsus’ work with ether; the studies of chemists Eugène Soubeiran, Justus von Liebig, Samual Gutherie, and Jean-Baptiste Dumas with chloroform; and more recently Paul Janssen’s development of fentanyl. Anesthetics are synthetic compounds...

article

Transplanting suboptimum organs: medico-legal implications

Matthew Dyson, Christopher J Watson, Kathleen Liddell, Nicola Padfield, more

The Lancet > 2015 > 386 > 9995 > 719-721

article

Towards consistency, rigour and compatibility of risk assessments for ecosystems and ecological communities

Emily Nicholson, Tracey J. Regan, Tony D. Auld, Emma L. Burns, more

Austral Ecology > 40 > 4 > 347 - 363

Ecosystem‐level conservation is increasingly important at global, national and local levels. Many jurisdictions have developed and apply their own protocols for assessing the threat status of ecosystems, often independently, leading to inconsistencies between and within countries which are problematic for cross‐jurisdictional environmental reporting. Australia is a good example of these historic legacies,...

article

Phytoscreening: A Comparison of In Planta Portable GC‐MS and In Vitro Analyses

Matt A. Limmer, Gregory D. Martin, Christopher J. Watson, Camilo Martinez, more

Groundwater Monitoring & Remediation > 34 > 1 > 49 - 56

Phytoscreening has been proven to rapidly delineate subsurface contaminant plumes for semiquantitative site assessment, with minimal impact to property or ecology through the collection and analysis of tree cores. Here, three phytoscreening methods were applied concurrently to identify multiple chlorinated volatile organic compounds (cVOCs) in a phytoremediation treatment system at a contaminated...

chapter

Hyperspectral assesments of condition and species composition of Australian grasslands

Christopher J. Watson, Natalia Restrepo Coupe, Alfredo R. Huete

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS > 2770 - 2773

IGARSS 2013 - 2013 IEEE International Geoscience and Remote Sensing Symposium

Temperate grasslands in Australia show dynamic responses to climate, which renders them difficult to study using conventional remote sensing tools. However, the need to adequately describe native grassland variables is critical in maintaining ecological and agricultural values. We used a spectroradiometer to measure leaf-and canopy-level spectra from grassland plots in a controlled environment and...

article

Effect of donor age and cold storage time on outcome in recipients of kidneys donated after circulatory death in the UK: a cohort study

Dominic M Summers, Rachel J Johnson, Alex Hudson, David Collett, more

The Lancet > 2013 > 381 > 9868 > 727-734

Use of kidneys donated after controlled circulatory death has increased the number of transplants undertaken in the UK but there remains reluctance to use kidneys from older circulatory-death donors and concern that kidneys from circulatory-death donors are particularly susceptible to cold ischaemic injury. We aimed to compare the effect of donor age and cold ischaemic time on transplant outcome in...

article

Sleep duration varies as a function of glutamate and GABA in rat pontine reticular formation

Christopher J. Watson, Ralph Lydic, Helen A. Baghdoyan

Journal of Neurochemistry > 118 > 4 > 571 - 580

J. Neurochem. (2011) 118, 571–580. AbstractThe oral part of the pontine reticular formation (PnO) is a component of the ascending reticular activating system and plays a role in the regulation of sleep and wakefulness. The PnO receives glutamatergic and GABAergic projections from many brain regions that regulate behavioral state. Indirect, pharmacological evidence has suggested that glutamatergic...

article

Analysis of factors that affect outcome after transplantation of kidneys donated after cardiac death in the UK: a cohort study

Dominic M Summers, Rachel J Johnson, Joanne Allen, Susan V Fuggle, more

The Lancet > 2010 > 376 > 9749 > 1303-1311

A third of all kidneys from deceased donors in the UK are donated after cardiac death, but concerns have been raised about the long-term outcome of such transplants. We aimed to establish these outcomes for kidneys donated after controlled cardiac death versus brain death, and to identify the factors that affect graft survival and function. We used data from the UK transplant registry to select...

article

Thermal Nociception is Decreased by Hypocretin-1 and an Adenosine A1 Receptor Agonist Microinjected into the Pontine Reticular Formation of Sprague Dawley Rat

Sarah L. Watson, Christopher J. Watson, Helen A. Baghdoyan, Ralph Lydic

Journal of Pain > 2010 > 11 > 6 > 535-544

Clinical and preclinical data concur that sleep disruption causes hyperalgesia, but the brain mechanisms through which sleep and pain interact remain poorly understood. Evidence that pontine components of the ascending reticular activating system modulate sleep and nociception encouraged the present study testing the hypothesis that hypocretin-1 (orexin-A) and an adenosine receptor agonist administered...

article

The calcified abdominal cocoon

Menna R Clatworthy, Paul Williams, Christopher J Watson, Neville V Jamieson

The Lancet > 2008 > 371 > 9622 > 1452

article

Membrane-localising complement inhibitors—clinical progress

Richard A.G. Smith, Geoffrey Koffman, Paramit Chowdhury, Kenneth G.C. Smith, more

Molecular Immunology > 2007 > 44 > 16 > 3915

article

Microdialysis coupled on-line to capillary liquid chromatography with tandem mass spectrometry for monitoring acetylcholine in vivo

Holly M. Shackman, Minshan Shou, Nicholas A. Cellar, Christopher J. Watson, more

Journal of Neuroscience Methods > 2007 > 159 > 1 > 86-92

Capillary liquid chromatography–mass spectrometry (cLC–MS) was coupled on-line to microdialysis sampling to monitor endogenous acetylcholine (ACh) from the rodent brain. In vivo microdialysate sampled at 0.6μL/min from the striatum of ketamine or chloral hydrate anesthetized rats was loaded onto a sample loop and then injected onto a ∼5cm long strong cation exchange (SCX) capillary column. A step...

article

Discovery and Neurochemical Screening of Peptides in Brain Extracellular Fluid by Chemical Analysis of in Vivo Microdialysis Samples

William E. Haskins, Christopher J. Watson, Nicholas A. Cellar, David H. Powell, more

Analytical Chemistry > 2004 > 76 > 18 > 5523 - 5533

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INFONA - science communication portal

Search results for: Christopher J. Watson

The taphonomic impact of scavenger guilds in peri‐urban and rural regions of central and southern Alberta. Part I – Identification of forensically relevant vertebrate scavengers

Seasonal impact of scavenger guilds as taphonomic agents in central and northern Ontario, Canada

The taphonomic impact of scavenger guilds in southern Quebec during summer and fall in two distinct habitats

Detecting grave sites from surface anomalies: A longitudinal study in an Australian woodland

Ecological and economic benefits of low‐intensity urban lawn management

Outcome after heart transplantation from donation after circulatory-determined death donors

Functional assessment and transplantation of the donor heart after circulatory death

A Neurochemical Perspective on States of Consciousness

Transplanting suboptimum organs: medico-legal implications

Towards consistency, rigour and compatibility of risk assessments for ecosystems and ecological communities

Phytoscreening: A Comparison of In Planta Portable GC‐MS and In Vitro Analyses

Hyperspectral assesments of condition and species composition of Australian grasslands

Effect of donor age and cold storage time on outcome in recipients of kidneys donated after circulatory death in the UK: a cohort study

Sleep duration varies as a function of glutamate and GABA in rat pontine reticular formation

Analysis of factors that affect outcome after transplantation of kidneys donated after cardiac death in the UK: a cohort study

Thermal Nociception is Decreased by Hypocretin-1 and an Adenosine A1 Receptor Agonist Microinjected into the Pontine Reticular Formation of Sprague Dawley Rat

The calcified abdominal cocoon

Membrane-localising complement inhibitors—clinical progress

Microdialysis coupled on-line to capillary liquid chromatography with tandem mass spectrometry for monitoring acetylcholine in vivo

Discovery and Neurochemical Screening of Peptides in Brain Extracellular Fluid by Chemical Analysis of in Vivo Microdialysis Samples

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