Catalogue Search | MBRL
Search Results Heading
Explore the vast range of titles available.
MBRLSearchResults
-
DisciplineDiscipline
-
Is Peer ReviewedIs Peer Reviewed
-
Item TypeItem Type
-
SubjectSubject
-
YearFrom:-To:
-
More FiltersMore FiltersSourceLanguage
Done
Filters
Reset
164
result(s) for
"Barge, P"
Sort by:
Usability of the SedLine® electroencephalographic monitor of depth of anaesthesia in pigs: a pilot study
2022
To investigate the usability of the SedLine® monitor in anaesthetized pigs. Five juvenile healthy pigs underwent balanced isoflurane-based general anaesthesia for surgical placement of a subcutaneous jugular venous port. The SedLine® was applied to continuously monitor electroencephalographic (EEG) activity and its modulation during anaesthesia. Computer tomography and magnetic resonance were performed to investigate the relationship between electrodes’ positioning and anatomical structures. The pediatric SedLine® EEG-sensor could be easily applied and SedLine®-generated variables collected. An EEG Density Spectral Array (DS) was displayed over the whole procedure. During surgery, the EEG signal was dominated by elevated power in the delta range (0.5–4 Hz), with an underlying broadband signal (where power decreased with increasing frequency). The emergence period was marked by a decrease in delta power, and a more evenly distributed power over the 4–40 Hz frequency range. From incision to end of surgery, mean SedLine®-generated values (± standard deviation) were overall stable [23.0 (± 2.8) Patient State Index (PSI), 1.0% (± 3.8%) Suppression Ratio (SR), 8.8 Hz (± 2.5 Hz) Spectral Edge Frequency 95% (SEF) left, 7.7 Hz (± 2.4 Hz) SEF right], quickly changing during emergence [75.3 (± 11.1) PSI, 0.0 (± 0.0) SR, 12.5 (± 6.6) SEF left 10.4 (± 6.6) SEF right]. Based on the imaging performed, the sensor does not record EEG signals from the same brain areas as in humans. SedLine®-DSA and -generated variables seemed to reflect variations in depth of anaesthesia in pigs. Further studies are needed to investigate this correlation, as well as to define the species-specific brain structures monitored by the EEG-sensor.
Journal Article
A transiting giant planet with a temperature between 250 K and 430 K
2010
This exoplanet looks familiar
About 70 of the more than 400 known extrasolar planets transit their central star, making it possible to observe their atmospheres and determine various key parameters. The transiting extra-solar planets so far discovered have had very short or eccentric orbits, so were either very hot or subject to extreme surface temperature variations. Now the CoRoT space observatory has discovered an exoplanet rather similar to the Solar System gas giants. The planet, CoRoT-9b, is in a 95-day low eccentricity orbit — resembling that of Mercury — around a Sun-like star. Its surface temperature is between about −20 and 150 °C, and based upon its density, its internal composition appears to resemble that of Jupiter and Saturn.
Of the more than 400 known exoplanets, about 70 transit their central star, most in small orbits (with periods of around 1 day, for instance). Here, observations are reported of the transit of CoRoT-9b, which orbits with a period of 95.274 days, on a low eccentricity, around a solar-like star. Its relatively large periastron distance yields a 'temperate' photospheric temperature estimated to be between 250 and 430 K, and its interior composition is inferred to be consistent with those of Jupiter and Saturn.
Of the over 400 known
1
exoplanets, there are about 70 planets that transit their central star, a situation that permits the derivation of their basic parameters and facilitates investigations of their atmospheres. Some short-period planets
2
, including the first terrestrial exoplanet
3
,
4
(CoRoT-7b), have been discovered using a space mission
5
designed to find smaller and more distant planets than can be seen from the ground. Here we report transit observations of CoRoT-9b, which orbits with a period of 95.274 days on a low eccentricity of 0.11 ± 0.04 around a solar-like star. Its periastron distance of 0.36 astronomical units is by far the largest of all transiting planets, yielding a ‘temperate’ photospheric temperature estimated to be between 250 and 430 K. Unlike previously known transiting planets, the present size of CoRoT-9b should not have been affected by tidal heat dissipation processes. Indeed, the planet is found to be well described by standard evolution models
6
with an inferred interior composition consistent with that of Jupiter and Saturn.
Journal Article
Transiting exoplanets from the CoRoT space mission Resolving the nature of transit candidates for the LRa03 and SRa03 fields
2012
CoRoT
is a space telescope which aims at studying internal structure of stars and detecting extrasolar planets. We present here a list of transits detected in the light curves of stars observed by
CoRoT
in two fields in the anti-center direction: the LRa03 one observed during 148 days from 3 October 2009 to 1 March 2010 followed by the SRa03 one from the 5 March 2010 to the 29 March 2010 during 25 days. 5329 light curves for the LRa03 field and 4169 for the SRa03 field were analyzed by the detection team of
CoRoT
. Then some of the selected exoplanetary candidates have been followed up from the ground. In the LRa03 field, 19 exoplanet candidates have been found, 8 remain unsolved. No secured planet has been found yet. In the SRa03 field, there were 11 exoplanetary candidates among which 6 cases remain unsolved and 3 planets have been found:
CoRoT
-18b,
CoRoT
-19b,
CoRoT
-20b.
Journal Article
The York Region Methamphetamine Strategy
by
Cronkwright Kirkos, W.
,
La Barge, A. P.
,
Griffen, K.
in
Amphetamine abuse
,
Amphetamine-Related Disorders - epidemiology
,
Amphetamine-Related Disorders - prevention & control
2008
The experience of the police in the York Region, a jurisdiction of about 1 000 000 people in the Greater Toronto Area, puts the emerging societal impact of methamphetamine laboratories into perspective. In 2001, York Regional Police made 3 seizures of small amounts of methamphetamine that were intended for personal use. In 2007, the York Regional Police made 25 seizures of methamphetamine totalling 3445 g. This includes methamphetamine seized from drug dealers associated with criminal organizations. In contrast, in 2007 the York Regional Police executed search warrants at 83 indoor marijuana grow operations and seized 36 844 marijuana plants and 200 kg of marijuana. One large-scale ecstasy seizure, coupled with several laboratory and street-level seizures, led to the removal of 958 318 ecstasy pills from the streets. Preventing crime, assisting victims of crime and working with the community are core policing values and responsibilities. Production and distribution of methamphetamine and its use as a commodity by members of organized crime is of great concern. In addition, the physical and psychological dependency it creates will increase demand for methamphetamine, which will lead to many associated health issues. The most effective means of fighting this is by working collaboratively with the community and health service professionals to educate potential methamphetamine users and dependent individuals about its highly addictive properties, providing treatment to those who have become addicted and to suppress the supply of methamphetamine through active and intelligence-led strategic police enforcement.
Journal Article
An Image‐Processing Method to Detect Planetary Transits: The “Gauging” Filter
2005
A new method is proposed for signal denoising and transit detection in stellar photometric light curves. The plane of a light curve can be considered as a two‐dimensional image that splits into two parts: the upper and lower part of the plot itself. The two resulting images are then analyzed with an image‐processing method that enables us to develop new algorithms for filtering and detection. The resulting denoising algorithm is more efficient than standard filters, such as the convolution filter, and can be applied recursively without changing the signals of interest. The new detection algorithm has a performance similar to that of the matched filter, but also exhibits greater “sensitivity” at a given confidence level. These new filtering and detection algorithms can operate on selected parts of a light curve, which is important for processing data flows or analyzing interrupted data sequences. They have been developed and tested on simulated light curves created using a physical model of theCOROT(Convection, Rotation, and Planetary Transits) instrument being developed for the mission. The algorithms provide interesting perspectives on how the detection of weak transit events might be improved.
Journal Article
A transiting giant planet with a temperature between 250K and 430K
by
Samuel, B
,
Rauer, H
,
Barge, P
in
Aérospatiale, astronomie & astrophysique
,
Derivation
,
Eccentricity
2010
Of the over 400 known exoplanets, there are about 70 planets that transit their central star, a situation that permits the derivation of their basic parameters and facilitates investigations of their atmospheres. Some short-period planets, including the first terrestrial exoplanet (CoRoT-7b), have been discovered using a space mission designed to find smaller and more distant planets than can be seen from the ground. Here we report transit observations of CoRoT-9b, which orbits with a period of 95.274days on a low eccentricity of 0.11c0.04 around a solar-like star. Its periastron distance of 0.36 astronomical units is by far the largest of all transiting planets, yielding a 'temperate' photospheric temperature estimated to be between 250 and 430K. Unlike previously known transiting planets, the present size of CoRoT-9b should not have been affected by tidal heat dissipation processes. Indeed, the planet is found to be well described by standard evolution models with an inferred interior composition consistent with that of Jupiter and Saturn.
Journal Article
Exoplanet discoveries with the CoRoT space observatory
2010
The CoRoT space observatory is a project which is led by the French space agency CNES and leading space research institutes in Austria, Brazil, Belgium, Germany and Spain and also the European Space Agency ESA. CoRoT observed since its launch in December 27, 2006 about 100 000 stars for the exoplanet channel, during 150 days uninterrupted high-precision photometry. Since the The CoRoT-team has several exoplanet candidates which are currently analyzed under its study, we report here the discoveries of nine exoplanets which were observed by CoRoT. Discovered exoplanets such as CoRoT-3b populate the brown dwarf desert and close the gap of measured physical properties between usual gas giants and very low mass stars. CoRoT discoveries extended the known range of planet masses down to about 4.8 Earth-masses (CoRoT-7b) and up to 21 Jupiter masses (CoRoT-3b), the radii to about 1.68 × 0.09 REarth (CoRoT-7b) and up to the most inflated hot Jupiter with 1.49 × 0.09 REarth found so far (CoRoT-1b), and the transiting exoplanet with the longest period of 95.274 days (CoRoT-9b). Giant exoplanets have been detected at low metallicity, rapidly rotating and active, spotted stars. Two CoRoT planets have host stars with the lowest content of heavy elements known to show a transit hinting towards a different planethost-star-metallicity relation then the one found by radial-velocity search programs. Finally the properties of the CoRoT-7b prove that rocky planets with a density close to Earth exist outside the Solar System. Finally the detection of the secondary transit of CoRoT-1b at a sensitivity level of 10−5 and the very clear detection of the “super-Earth” CoRoT-7b at 3.5 × 10−4 relative flux are promising evidence that the space observatory is being able to detect even smaller exoplanets with the size of the Earth.
Journal Article
Traumatic pulmonary pseudocysts associated to pneumothorax and rib fractures in a dog
by
Soler, Marta
,
Fernández-Del Palacio, Maria Josefa
,
Santarelli, Giorgia
in
Case reports
,
Catheters
,
computed tomography (CT)
2018
A two-year-old, 37 kg intact mixed-breed dog was presented with lameness of the left pelvic limb after being hit by a car three days ago. The physical examination revealed tachypnoea with an abdominal restrictive respiratory pattern. Based on history of the patient and imaging findings a presumptive diagnosis of pneumothorax, rib fractures and traumatic pulmonary pseudocysts (TPP) was made. The patient was treated conservatively. One month later, thoracic radiograph showed only a pulmonary small nodule. TPPs are an uncommon complication after blunt thorax trauma but should be included in the differential diagnosis when cavitary pulmonary lesions are seen on thoracic radiograph or CT.
Journal Article
Officers' Perceptions of the Ontario Provincial Police Framework for Police Preparedness for Indigenous Critical Incidents
2022
Responding to First Nation occupations and protests is one of the most challenging duties that police officers in Canada undertake. Over the last 30 years, these types of incidents have resulted in deaths and injuries to police and protesters, and millions of dollars’ worth of damage and financial loss. After the 1995 shooting death of an unarmed Indigenous protester by police at the Ipperwash occupation, the Ontario Provincial Police (OPP) introduced an unconventional operational approach for protests known as the OPP Framework policy. That approach was built on the concepts of peacekeeping, patient negotiation, mutual respect, and the minimal use of force, and only as a last resort. To address a gap in academic literature pertaining to officers’ perceptions of the Framework, data for this qualitative phenomenological research study were collected using interviews of 23 participants and analysis of archival records. Despite public criticism of the Framework approach, participants overwhelmingly supported it, highlighting the OPP Provincial Liaison Team members’ work in building strong relationships and trust with First Nations as its greatest strength. Those relationships enabled police to resolve more than 700 Indigenous critical incidents without having to resort to the use of force. In order to enhance the policy’s public perception and operational effectiveness, participants suggested improvements in training and education, internal and external communication, clarifying the role of government, and addressing public concerns about two-tiered policing. The study findings have potential implications for positive social change by averting or mitigating future protests and by altering negative the public perception of the Framework’s conciliatory and rights-based approach to resolving conflict.
Dissertation