1,457 research outputs found
Johanna Gunnarson, Elise Nelsen and Rebecca Nelson preparing for ski race on Mackenzie Avenue
No full textL-R: #1 Johanna Gunnarson #2 Elise Nelsen #3 Rebecca Nelson
Hypertension and atrial fibrillation: a long term study of remodeling in a conscious ovine model
No full textAbstract 2618Dennis H Lau, Lorraine Mackenzie, Darren J Kelly, Peter J Psaltis, Michael Worthington, Arumuga Rajendram, Douglas R Kelly, Pawel Kuklik, Adam J Nelson, Yuan Zhang, Anthony G Brooks, Stephen G Worthley, David A Saint, Mohan Rao, James Edwards, Prashanthan Sander
Biographic Memoir of Ernest Ingersoll: Naturalist, Shellfish Scientist, and Author
No full textThe name Ernest Ingersoll is well-known to many shellfishery biologists as the author of two outstanding monographs on the shellfisheries of the United States and Canada in the 1880's. The first (Ingersoll, 1881a), entitled "A Report on the Oyster-Industry of the United States," was a 252-page description of historical and contemporary oyster fishing' marketing methods, and statistical data in the eastern provinces of Canada and the coastal states of the United States. The second (Ingersoll, 1887), entitled "The Oyster, Scallop, Clam, Mussel, and Abalone Industries," was a l20-page summary of the first monograph about oysters as well as a history and description of contemporary methods and statistical data of the other shellfisheries. Although Ingersoll was, by profession, a naturalist and author but only briefly a shellfish scientist, these monographs are regarded as benchmarks, providing the principal descriptions of shellfisheries in North America in the 1700's and 1800's
Hydrogeology, geopressures and hydrocarbon occurrences, Beaufort-Mackenzie Basin
No full textAbout 97 400km of the coastal and offshore areas of the Beaufort-Mackenzie Basin were studied in the region from 68° to 71°N, and 130° to 137°30′W. Salinity of formation waters ranges up to 46 000mg/l at depths of 4km and shows evidence of extensive flushing by meteoric waters. Statistical multi-response permutation procedures demonstrate that, despite this deep flushing, it is also possible to distinguish formation waters from geopressure zones that had their composition modified by the membrane effects of shales. The top of the main geopressure zone lies at depths of about 2km beneath Richards island and increases in depth basinward to ~5km/ It is suggested that the main geopressure zone was already in existence sometime during the middle of the Tertiary, with its top lying at about 2km depth. Basinal uplift and erosion in the period from 6 to 5Ma was associated with extensive influx of meteoric water, which biodegraded the earlier formed hydrocrabons. Pliocene to Recent sediments of the Iperk sequence were deposited during a major basinal downwarp, with up to 3.5km being deposited far offshore. The geothermal regime has been able to adjust to this downwarping but the pre-Pliocene geopressure zone has not, and as a result still lies about 2km below the base of the Iperk sequence. Hydrocarbons, in the Mackenzie Bay and Kugmallit sequences (Miocene and Oligocene, respectively) occur above the main geopressure zone. -from Author
Evaluation of an automated, homogeneous enzyme immunoassay for serum thyroxine measurement in dog and cat serum
No full textA homogenous enzyme immunoassay (EIA) for measurement of serum thyroxine (T4) concentration was evaluated for use with canine and feline serum. The EIA method was linear from 0 to 150 nmol T4/L for human serum, 0 to 94 nmol T4/L for feline serum and 10 to 60 nmol T4/L for canine serum. Intra- and interassay precision studies yielded coefficients of variation </= 8% using single point measurements. Method comparison studies gave close agreement between radioimmunoassay (RIA) and EIA results. Correlation coefficients (r values) were 0.88 and 0.97 for canine and feline samples respectively, after application of species-specific factors to correct the calibrator values assigned for human serum samples. The EIA showed no interference from hemolysis at hemoglobin concentrations </= 20 g/L or from moderate lipemia. Highly lipemic specimens could be tested after centrifugation to clarify the sample. The EIA showed less interference from autoantibodies to T4 than the RIA method. The EIA method allows automation of T4 testing in a veterinary hospital or laboratory, and can be integrated with the routine clinical chemistry panel.Source type: Electronic(1
Student nurse group
No full textStudent nurse group.
Back row, left to right: M. Denny; E. Copeland; J. MacKenzie; T. Hausler; C. ven den Bout; J. Doyle; C. Spain; S. Graham; L. Graham; J. Stretton.
Front row, left to right: M. Deguzman; C. Stewart; Sr P. Reaney; S. Nelson; M. McIntosh.Collins, Joy
Validation of the Nova CRT8 for the measurement of ionized magnesium in feline serum
No full textBACKGROUND: Evaluation of serum magnesium (Mg) concentration is becoming important in human and veterinary critical care medicine. An ion-selective electrode can measure the physiologically active ionized fraction. OBJECTIVES: The purpose of this study was to validate an ion-specific electrode analyzer and assay for measuring ionized Mg in feline serum and to determine a reference interval for this analyte in cats. METHODS: Venous blood samples were collected anaerobically from clinically healthy cats, and the serum was used to validate the analyzer and assay. This included investigating the stability of samples stored at different temperatures, intra- and interassay precision, linearity, analytical sensitivity, and potential interferences from bilirubin, lipemia, hemoglobin, or serum separator tubes. A reference interval was calculated. RESULTS: Serum samples evaluated for ionized Mg concentrations can be stored at 20 degrees C for < or =24 hours, at 4 degrees C for < or =72 hours, and at 20 degrees C for < or =4 weeks, when samples are minimally exposed to air. Intra- and interassay precisions had coefficients of variation (CVs) of 1.23% and 2.02%, respectively. There was good linearity using serum (r = .998; y = -0.0057 + 1.0256x) and manufacturer-supplied aqueous solutions and quality control materials (r = .999; y = 0.0110 + 0.9213x). Apparent analytical sensitivity was at least 0.015 mmol/L. Mean recovery was good for ionized Mg in samples with 1+ icterus (104%), 4+ lipemia (99.3%) and 1-4+ hemolysis (98.6%). There was no significant difference (P = .52) in ionized Mg concentrations in serum collected in tubes containing no additives compared with serum collected in glass separator tubes. The serum ionized Mg reference interval was 0.47-0.63 mmol/L (n = 40). CONCLUSIONS: The Nova CRT8 analyzer and assay provide a precise and reliable method of measuring ionized Mg concentration in feline serum. Strict adherence to sampling techniques, handling, and storage are necessary for reliable results.Source type: Electronic(1
Preface
No full textThe University of Pennsylvania Working Papers in Linguistics (PWPL) is an occasional series published by the Penn Linguistics Club. The series has included volumes of previously unpublished work, or work in progress, by linguists with an ongoing affiliation with the Department, as well as volumes of papers from NWAV and the Penn Linguistics Colloquium.
This volume contains selected papers from the 32nd Penn Linguistics Colloquium, held from February 22-24, 2008 in Philadelphia, PA at the University of Pennsylvania.
Alphabetic thanks go to Dimka Atanassov, Jana Beck, Julia Bookout, Stefanie Brody, Toni Cook, Keelan Evanini, Lauren Friedman, Kyle Gorman, Shane Jobber, Catherine Lai, Marielle Lerner, Jon Stevens, and Joshua Tauberer for help in editing, uploading, and general support.
Since Vol. 14.2, PWPL has been an internet-only publication. Since Vol. 13.2, PWPL has been published both in print and online gratis via ScholarlyCommons@Penn. Due to the large number of hits these online papers have received, and the time and expense of managing a back catalog of PWPL volumes, the editorial committee decided in 2008 to cease print publication in favor of wider-scale free online dissemination. Please continue citing PWPL papers or issues as you would a print journal article, though you may also provide the URL of the manuscript. An example is below:
Antonyuk-Yudina, Svitlana. 2009. Long-Distance Scrambling, VP Ellipsis, and Scope Economy in Russian. U. Penn Working Papers in Linguistics 15.1: Proceedings of PLC 32, ed. L. MacKenzie, 1-9. http://repository.upenn.edu/pwpl/vol15/iss1/2
Ultimately, the entire back catalog will be digitized and made available on ScholarlyCommons@Penn.
Publication in the University of Pennsylvania Working Papers in Linguistics (PWPL) does not preclude submission of papers elsewhere; copyright is retained by the author(s) of individual papers.
The PWPL editors can be contacted at: U. Penn Working Papers in Linguistics 619 Williams Hall, University of Pennsylvania Philadelphia, PA 19104–6305
[email protected] http://ling.upenn.edu/papers/pwpl.html
Laurel MacKenzie Issue Edito
Preface
No full textThe University of Pennsylvania Working Papers in Linguistics (PWPL) is an occasional series published by the Penn Linguistics Club. The series has included volumes of previously unpublished work, or work in progress, by linguists with an ongoing affiliation with the Department, as well as volumes of papers from NWAV and the Penn Linguistics Colloquium.
This volume contains selected papers from the 32nd Penn Linguistics Colloquium, held from February 22-24, 2008 in Philadelphia, PA at the University of Pennsylvania.
Alphabetic thanks go to Dimka Atanassov, Jana Beck, Julia Bookout, Stefanie Brody, Toni Cook, Keelan Evanini, Lauren Friedman, Kyle Gorman, Shane Jobber, Catherine Lai, Marielle Lerner, Jon Stevens, and Joshua Tauberer for help in editing, uploading, and general support.
Since Vol. 14.2, PWPL has been an internet-only publication. Since Vol. 13.2, PWPL has been published both in print and online gratis via ScholarlyCommons@Penn. Due to the large number of hits these online papers have received, and the time and expense of managing a back catalog of PWPL volumes, the editorial committee decided in 2008 to cease print publication in favor of wider-scale free online dissemination. Please continue citing PWPL papers or issues as you would a print journal article, though you may also provide the URL of the manuscript. An example is below:
Antonyuk-Yudina, Svitlana. 2009. Long-Distance Scrambling, VP Ellipsis, and Scope Economy in Russian. U. Penn Working Papers in Linguistics 15.1: Proceedings of PLC 32, ed. L. MacKenzie, 1-9. http://repository.upenn.edu/pwpl/vol15/iss1/2
Ultimately, the entire back catalog will be digitized and made available on ScholarlyCommons@Penn.
Publication in the University of Pennsylvania Working Papers in Linguistics (PWPL) does not preclude submission of papers elsewhere; copyright is retained by the author(s) of individual papers.
The PWPL editors can be contacted at: U. Penn Working Papers in Linguistics 619 Williams Hall, University of Pennsylvania Philadelphia, PA 19104–6305
[email protected] http://ling.upenn.edu/papers/pwpl.html
Laurel MacKenzie Issue Edito
Detection and relocation of earthquakes in the sparsely instrumented Mackenzie Mountains region, Yukon and Northwest Territories, Canada
No full text2020 Spring.Includes bibliographical references.The Mackenzie Mountains are an actively uplifting and seismogenic arcuate thrust belt lying within the Northwest Territories and Yukon, Canada. Seismic activity in the region is poorly constrained due to a historically sparse seismograph distribution. In this study, new data are analyzed from the 40-station, ~875 km-long Mackenzie Mountains temporary network (Baker et al., 2020) crossing the Cordillera-Craton region adjacent to and within the Mackenzie Mountains, in conjunction with Transportable Array and other sparsely distributed arrays in the region. Data from approximately August 2016 – August 2018 are processed and compared to the sparse-network earthquake catalog records maintained by the USGS and Natural Resources Canada. Using algorithms developed by Kushnir et al. (1990), Rawles and Thurber (2015), and Roecker et al. (2006), signals are identified and subsequently associated across the network to note potential events, estimate phase onsets, and resolve hypocenter locations. This study improves the regional earthquake catalog by detecting smaller-magnitude earthquakes and lowering the regional magnitude of completeness from Mc = 2.5 to 1.9. Within the Mackenzie Mountains and immediately surrounding areas we find 524 new events and additionally recommend an updated location for 185 previously cataloged events. Our b-value computation for the updated catalog (0.916 ± 0.08) likely indicates a relatively high level of regional differential stress. We identify the spatial distribution of earthquakes in the Mackenzie Mountains as diffuse, and offer far-field stress transfer as a mechanism for producing widespread reverse faulting observed in the region. Further, we associate regional seismicity with tectonic activity in the context of known faults and orogenic provinces such as the Richardson Mountains
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