87 research outputs found
Temperature trends in the semiarid prairie of southwestern Saskatchewan
No full textNon-Peer ReviewedPreviously, we had analyzed long-term weather data (from 1950 to 1997) to study the annual as well as seasonal change in air temperature within an approximately 15000 km2 area in the semiarid prairie near Swift Current, SK (Cutforth et al. 1999; Cutforth 2000). We found that the average annual maximum (Tmx) and minimum (Tmn) air temperatures had increased linearly with year. Seasonally, we found that the average Tmx and Tmn for January through April (JFMA) had also increased linearly from 1950 to 1997, as had the average Tmn for May through August. Average air temperatures for September through December (SOND) did not change with year. Generally, JFMA experienced the largest warming trend between 1950 and 1997, whereas temperatures during SOND did not change with year
Extra-tall stubble can increase crop yield in the semiarid Canadian prairie
No full text Cutforth, H., McConkey, B., Angadi, S. and Judiesch, D. 2011. Extra-tall stubble can increase crop yield in the semiarid Canadian prairie. Can. J. Plant Sci. 91: 783–785. Previous research in the semiarid prairie showed that crop yields increased as the height of standing stubble increased to 30 cm. Recent technology permits seeding into higher standing stubble. A 3-yr (2001–2003) study was conducted at Swift Current, SK, to determine how seeding canola, pulse, and wheat into cultivated, short (about 15 cm high), tall (about 30 cm high), and extra-tall (about 45 cm high) standing stubble affected crop yield. Crop yield and the overall average water use efficiency increased linearly as stubble height increased to 45 cm. Water use was independent of stubble height. </jats:p
Evaluating physical therapy students' knowledge of and adherence to the ambassador low back pain guideline
No full textPurpose: To examine a process for evaluating physiotherapy (PT) students' knowledge of and adherence to the Ambassador Low Back Pain (LBP) guideline using vignettes. Methods: The study used a cross-sectional survey design. Participants were PT students who had received information related to the guideline as part of their curriculum. Primary measures were responses to questions about the management of four clinical vignettes. Adherence to guideline recommendations was measured by comparing participant scores to a guideline-based set of responses from a physiotherapist involved in developing the Ambassador guideline, which was considered a criterion standard. Results: A total of 74 respondents provided complete data, for a response rate of 89percent; 65 (88percent) reported no knowledge of the guideline. Overall consistency with the criterion standard was high (70percent). Respondents demonstrated high adherence when identifying red flags and deciding whether to refer to another provider. Conclusion: Despite known exposure, knowledge of the guideline was low in this sample of Canadian PT students. Nevertheless, in several key areas, unconscious adherence was high relative to the guidelinebased criterion standard. With minor modifications, the vignettes are suitable for evaluating the Ambassador LBP guidelines in a larger study.Bekkering GE, 2005, QUAL SAF HEALTH CARE, V14, P107, DOI 10.1136-qshc.2003.009357; Bekkering GE, 2003, PHYSIOTHERAPY, V89, P82, DOI DOI 10.1016-S0031-9406(05)60579-2; Bishop Paul B, 2003, Spine J, V3, P442, DOI 10.1016-S1529-9430(03)00152-9; Bishop Paul B, 2006, Spine J, V6, P282, DOI 10.1016-j.spinee.2005.10.008; Cassidy JD, 1998, SPINE, V23, P1860, DOI 10.1097-00007632-199809010-00012; Cutforth G, 2011, PHYSIOTHER CAN, V63, P278, DOI 10.3138-ptc.2009-39P; Di Iorio D, 2000, ARCH FAM MED, V9, P1015, DOI 10.1001-archfami.9.10.1015; Domenech J, 2011, PAIN, V152, P2557, DOI 10.1016-j.pain.2011.07.023; Foster NE, 2011, PHYS THER, V91, P790, DOI 10.2522-ptj.20100326; George SZ, 2011, BMC MED, V9, DOI 10.1186-1741-7015-9-128; Gould D, 1996, J CLIN NURS, V5, P207, DOI 10.1111-j.1365-2702.1996.tb00253.x; GRIMSHAW J, KNOWLEDGE SYNTHESIS; Grol R, 2003, LANCET, V362, P1225, DOI 10.1016-S0140-6736(03)14546-1; Gross DP, 2006, SPINE, V31, P2142, DOI 10.1097-01.brs.0000231771.14965.e4; Gross DP, 2009, DISABIL REHABIL, V31, P871, DOI [10.1080-01443610802355965, 10.1080-014413610802355965]; Harman K, 2009, PHYSIOTH CAN, V61, P88, DOI 10.3138-physio.61.2.88; Harstall C, 2011, J EVAL CLIN PRACT, V17, P693, DOI 10.1111-j.1365-2753.2010.01420.x; Hay EM, 2008, BMC MUSCULOSKEL DIS, V9, DOI 10.1186-1471-2474-9-58; Hayden JA, 2009, J CLIN EPIDEMIOL, V62, P781, DOI 10.1016-j.jclinepi.2008.09.004; Hayden JA, 2010, BEST PRACT RES CL RH, V24, P167, DOI 10.1016-j.berh.2009.12.005; Hill JC, 2011, LANCET, V378, P1560, DOI 10.1016-S0140-6736(11)60937-9; Hill JC, 2010, EUR J PAIN, V14, P83, DOI 10.1016-j.ejpain.2009.01.003; Hockings RL, 2008, SPINE, V33, pE494, DOI 10.1097-BRS.0b013e31817ba3bb; Ikezawa Y, 2010, J OCCUP REHABIL, V20, P367, DOI 10.1007-s10926-010-9230-z; Institute of Health Economics, 2009, GUID EV INF PRIM CAR; Koes BW, 2010, EUR SPINE J, V19, P2075, DOI 10.1007-s00586-010-1502-y; Main CJ, 2011, PHYS THER, V91, P820, DOI 10.2522-ptj.20110060; Peabody JW, 2000, JAMA-J AM MED ASSOC, V283, P1715, DOI 10.1001-jama.283.13.1715; Peabody JW, 2004, ANN INTERN MED, V141, P771; Poitras S, 2007, J EVAL CLIN PRACT, V13, P412, DOI 10.1111-j.1365-2753.2006.00725.x; Poitras S, 2012, SPINE, V37, P1252, DOI 10.1097-BRS.0b013e31824b6adf; Poitras S, 2005, PHYS THER, V85, P1168; Portney LG, 2009, FDN CLIN RES APPL PR; Rainville J, 2000, SPINE, V25, P2210, DOI 10.1097-00007632-200009010-00012; RASHIQ S, 2006, BMC MED EDUC, V6, P1; Rutten G, 2009, J CLIN EPIDEMIOL, V62, P167, DOI 10.1016-j.jclinepi.2008.04.004; Rutten GM, 2010, PHYS THER, V90, P1111, DOI 10.2522-ptj.20090173; Rutten GMJ, 2006, J EVAL CLIN PRACT, V12, P491, DOI 10.1111-j.1365-2753.2006.00699.x; Schreiber J, 2005, INTERNET J ALLIED HE, V3, P1; Shah R, 2010, OPHTHAL PHYSL OPT, V30, P209, DOI 10.1111-j.1475-1313.2010.00713.x; Turner Patricia A., 1999, Physiotherapy Theory and Practice, V15, P235, DOI 10.1080-095939899307649; van Tulder MW, 2004, SPINE, V29, pE357, DOI 10.1097-01.brs.0000137056.64166.51; Webster BS, 2005, J GEN INTERN MED, V20, P1132, DOI 10.1111-j.1525-1497.2005.0230.x11
Water stress, sap flow and transpiration for medium and highly drought resistant poplars grown in the semiarid Canadian prairie
No full textSap flow was measured to determine transpiration rates for CanAm and Walker poplars grown in the semiarid Canadian prairie. CanAm poplars had higher sap flow rates and were better able to supply water to actively growing regions for all water availabilities (well-watered to drought). CanAm poplars were better able to survive drought.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Seasonal drought occurrence in the semiarid prairie surrounding Swift Current from 1999 to 2003
No full textNon-Peer Reviewe
Growing degree day trends on the semiarid prairie of southwestern Saskatchewan
No full textNon-Peer Reviewe
Climate change in the semiarid prairie of southwestern Saskatchewan: Temperature, precipitation, wind, and incoming solar energy
No full text Long-term weather data were analyzed to study annual as well as seasonal climate change within an approximately 15 000-km2 area in the semiarid prairie near Swift Current, SK. The climate of the study region has changed over the past 50 yr. Annually, average maximum (Tmx) and minimum (Tmn) air temperatures have increased – rainfall amounts and the number of rainfall events (≥0.5 mm) have increased since the late 1960s-early 1970s; incoming solar energy has decreased, and wind speed has decreased since the early 1970s. Seasonally, for January through April (JFMA), both Tmx and Tmn have increased, the number of rainfall events has increased since the early 1970s, snowfall amounts and the number of snowfall events (≥0.5 cm) have decreased; the number of precipitation events (≥0.5 mm) has decreased, incoming solar energy has decreased, and wind speed has decreased since the early 1970s. For May through August (MJJA), Tmn has increased, incoming solar energy has decreased, and wind speed has decreased since the mid-1970s. For September through December (SOND), the number of rainfall events has increased since the early 1970s and wind speed has decreased. Since 1950, JFMA has become drier and, relative to JFMA, SOND has become wetter. Generally, JFMA has experienced the largest change in climate, whereas SOND has experienced the least climate change. Precipitation amounts and events were negatively correlated with increasing Tmx, suggesting a future decrease in precipitation amounts for southwestern Saskatchewan if global warming continues. Key words: Climate change, semiarid prairie, temperature, precipitation, wind, solar energy </jats:p
Yield and water use of paired-row versus equidistant-row seeded spring wheat in a semiarid environment
No full text A field study was carried out to determine the effects of seed row configuration on days to maturity, water use and grain yield of spring wheat (Triticum aestivum L. ’Leader’) grown in a semiarid environment. From 1986 to 1989, Leader spring wheat was seeded at Swift Current, Saskatchewan in north-south equidistant-rows (25-cm row spacing) and paired-rows (two rows 10 cm apart with 50 cm between the centre of each paired row). Seed and fertilizer were applied at recommended rates for the Brown soil zone. There were no significant differences (P > 0.10) in grain yield, water use or days to maturity between equidistant-row and paired-row seeding. The data suggest that under the environmental conditions of the Brown soil zone paired-row seeding may have no agronomic advantage over equidistant-row seeding.Key words: Paired-row seeding, water use, grain yield, spring wheat </jats:p
Increased Excitatory Synaptic Transmission of Dentate Granule Neurons in Mice Lacking PSD-95-Interacting Adhesion Molecule Neph2/Kirrel3 during the Early Postnatal Period
No full textCopy number variants and point mutations of NEPH2 (also called KIRREL3) gene encoding an immunoglobulin (Ig) superfamily adhesion molecule have been linked to autism spectrum disorders, intellectual disability and neurocognitive delay associated with Jacobsen syndrome, but the physiological roles of Neph2 in the mammalian brain remain largely unknown. Neph2 is highly expressed in the dentate granule (DG) neurons of the hippocampus and is localized in both dendrites and axons. It was recently shown that Neph2 is required for the formation of mossy fiber filopodia, the axon terminal structure of DG neurons forming synapses with GABAergic neurons of CA3. In contrast, however, it is unknown whether Neph2 also has any roles in the postsynaptic compartments of DG neurons. We here report that, through its C-terminal PDZ domain-binding motif, Neph2 directly interacts with postsynaptic density (PSD)-95, an abundant excitatory postsynaptic scaffolding protein. Moreover, Neph2 protein is detected in the brain PSD fraction and interacts with PSD-95 in synaptosomal lysates. Functionally, loss of Neph2 in mice leads to age-specific defects in the synaptic connectivity of DG neurons. Specifically, Neph2−/− mice show significantly increased spontaneous excitatory synaptic events in DG neurons at postnatal week 2 when the endogenous Neph2 protein expression peaks, but show normal excitatory synaptic transmission at postnatal week 3. The evoked excitatory synaptic transmission and synaptic plasticity of medial perforant pathway (MPP)-DG synapses are also normal in Neph2−/− mice at postnatal week 3, further confirming the age-specific synaptic defects. Together, our results provide some evidence for the postsynaptic function of Neph2 in DG neurons during the early postnatal period, which might be implicated in neurodevelopmental and cognitive disorders caused by NEPH2 mutations.
Copyright © 2017 Roh, Choi, Cho, Choi, Park, Cutforth, Chung, Park, Lee, Kim, Lee,
Mo, Rhee, Kim, Ko, Choi, Bae, Shen, Kim and Han. This is an open-access article
distributed under the terms of the Creative Commons Attribution License (CC BY).
The use, distribution and reproduction in other forums is permitted, provided the
original author(s) or licensor are credited and that the original publication in this
journal is cited, in accordance with accepted academic practice. No use, distribution
or reproduction is permitted which does not comply with these terms.
© 2017 Roh, Choi, Cho, Choi, Park, Cutforth, Chung, Park, Lee, Kim, Lee,
Mo, Rhee, Kim, Ko, Choi, Bae, Shen, Kim and Han. This is an open-access article
distributed under the terms of the Creative Commons Attribution License (CC BY).
The use, distribution and reproduction in other forums is permitted, provided the
original author(s) or licensor are credited and that the original publication in this
journal is cited, in accordance with accepted academic practice. No use, distribution
or reproduction is permitted which does not comply with these terms.
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