2024-03-29T15:01:43Z
https://ojs.lib.umanitoba.ca/index.php/index/oai
oai:ojs.ojs.lib.umanitoba.ca:article/530
2015-12-14T17:48:04Z
sa_jhe:Edit
oai:ojs.ojs.lib.umanitoba.ca:article/531
2015-12-14T17:48:04Z
sa_jhe:Res%2FSchol
oai:ojs.ojs.lib.umanitoba.ca:article/532
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/533
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/534
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/535
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/536
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/537
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/538
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/539
2015-12-14T17:48:04Z
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oai:ojs.ojs.lib.umanitoba.ca:article/540
2015-12-14T17:48:04Z
sa_jhe:Conf
oai:ojs.ojs.lib.umanitoba.ca:article/583
2018-03-27T16:13:35Z
jcpa:Org_Res
oai:ojs.ojs.lib.umanitoba.ca:article/584
2018-03-27T16:13:35Z
jcpa:Org_Res
oai:ojs.ojs.lib.umanitoba.ca:article/585
2018-08-20T16:49:52Z
UMMedJournal:ART
oai:ojs.ojs.lib.umanitoba.ca:article/594
2018-02-27T17:28:36Z
sa_jhe:Res%2FSchol
oai:ojs.ojs.lib.umanitoba.ca:article/595
2018-02-27T18:58:10Z
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oai:ojs.ojs.lib.umanitoba.ca:article/596
2018-03-05T15:54:52Z
sa_jhe:Conf
oai:ojs.ojs.lib.umanitoba.ca:article/600
2018-02-27T18:58:10Z
sa_jhe:Conf
oai:ojs.ojs.lib.umanitoba.ca:article/601
2018-03-05T16:18:29Z
sa_jhe:Conf
oai:ojs.ojs.lib.umanitoba.ca:article/621
2018-07-01T16:43:52Z
jcpa:Perspective
oai:ojs.ojs.lib.umanitoba.ca:article/638
2018-08-20T17:35:02Z
UMMedJournal:ART
oai:ojs.ojs.lib.umanitoba.ca:article/639
2018-08-20T18:12:09Z
UMMedJournal:ART
oai:ojs.ojs.lib.umanitoba.ca:article/640
2018-08-20T19:11:15Z
UMMedJournal:Pers
oai:ojs.ojs.lib.umanitoba.ca:article/642
2018-08-20T22:46:35Z
UMMedJournal:Pref
oai:ojs.ojs.lib.umanitoba.ca:article/643
2019-08-15T19:37:16Z
UMMedJournal:Pers
oai:ojs.ojs.lib.umanitoba.ca:article/648
2019-08-15T19:31:10Z
UMMedJournal:Pref
oai:ojs.ojs.lib.umanitoba.ca:article/656
2018-08-20T23:34:02Z
UMMedJournal:full
oai:ojs.ojs.lib.umanitoba.ca:article/657
2019-08-15T20:56:41Z
UMMedJournal:full
oai:ojs.ojs.lib.umanitoba.ca:article/672
2019-01-08T17:30:02Z
jcpa:Perspective
oai:ojs.ojs.lib.umanitoba.ca:article/697
2019-01-08T15:44:38Z
jcpa:Perspective
oai:ojs.ojs.lib.umanitoba.ca:article/745
2019-08-15T20:55:30Z
UMMedJournal:full
oai:ojs.ojs.lib.umanitoba.ca:article/787
2019-10-28T19:19:46Z
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oai:ojs.ojs.lib.umanitoba.ca:article/788
2019-10-28T19:24:49Z
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oai:ojs.ojs.lib.umanitoba.ca:article/789
2019-10-28T19:24:55Z
UMMedJournal:LE
oai:ojs.ojs.lib.umanitoba.ca:article/791
2019-10-28T19:24:59Z
UMMedJournal:ref
oai:ojs.ojs.lib.umanitoba.ca:article/915
2022-07-07T00:33:55Z
forks:ART
oai:ojs.ojs.lib.umanitoba.ca:article/934
2023-07-29T18:07:46Z
jcpa:Perspective
driver
oai:ojs.ojs.lib.umanitoba.ca:article/458
2018-11-07T18:33:15Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/458
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Mycological diversity on Jack Pine and Black Spruce bark by Payuk Lake, Manitoba.
Doering, Jennifer; University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2
Doering, Matthew; XiteBio Technologies Inc., Winnipeg, Manitoba, Canada, R2N 4A8
Mottiar, Yaseen; Faculty of Forestry, University of British Columbia
2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
Booth, Tom; University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/458
en_US
Fungi provide an essential role to the ecosystem they inhabit by decomposing dead organic material; however they have been little studied in Northern Manitoba. Payuk Lake is located within a chain of lakes that make up the headwaters of the Grass River. This region is currently under consideration for conservation. The objectives of this study were to investigate the mycological diversity of Payuk Lake, MB, and to examine the difference in mycological diversity between Jack Pine (Pinus banksiana) and Black Spruce (Picea mariana) and the heights on each tree trunk. Bark samples were collected from three heights on Jack Pine and Black Spruce trees along the ridges of Payuk Lake. The bark samples were dried and placed in moist chambers for three weeks and described using the dissecting and compound light microscopes. A total of 18 organisms were cultured from the bark samples, nine of which were classified as myxomycetes. Two-way cluster analysis showed that the most common organisms were zygomycetes, and the uncommon were myxomycetes. Cluster analysis also showed distinct clustering between tree species and heights. Shannon’s diversity index was not significant between Jack Pine and Black Spruce, but trends were evident. The diversity of fungi, and other organisms, could be large and should be further investigated to better understand the importance of the Payuk Lake region and to help conserve the headwaters of the Grass River.
oai:ojs.ojs.lib.umanitoba.ca:article/459
2018-11-07T18:33:15Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/459
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Investigating the N-terminal deletion in Mitochondrial Voltage-Dependent Anion Channels in Neurospora crassa
Kovaltchouk, Uliana Maria; University of Manitoba
Court, Deborah; University of Manitoba
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/459
en_US
The mitochondrial outer membrane consists of a class of porin –VDAC – that facilitate diffusion of small hydrophilic molecules across the outer membrane. VDAC proteins share a prominent property in which they display voltage-dependent conformational changes involved in gating when reconstituted into planar lipid bilayers (Benz 1994). The N-terminus of VDAC is the focus of this study, due to conflicting structural and electrophysiological results presented by Geula et al. 2012 and Teijido et al 2012. Thus, it proves essential to verify the N-terminus’s function and mobility in VDAC gating mechanism. The objective of this study is to determine the basis for the phenotypic differences seen in two generated Neurospora crassa strains (∆N2a, WS125.5) that originally had identical VDAC N-terminal deletions of amino acids 2-12. Qualitative and quantitative phenotypic analysis was conducted using race tubes; ∆N2a displayed growth rates at a midpoint between wild-type and WS125.5 growth rates, while WS125.5 displayed significantly reduced growth rates. Genomic DNA was extracted from both variants and sequenced using BigDye Termination 3.1, revealing the N-terminal deletion in ∆N2a. Sequences from WS125.5 failed to provide information regarding the N-terminal deletion in the strain due to incorrect annealing of primers. However, PCR analysis -- using predetermined primers -- of genomic segments of WS125.5 resulted in a double banding pattern -- a band that is characteristic for wild-type and a band characteristic for the strain. This indicates that WS125.5 is a heterokaryon; however, because it does not exhibit the wild type growth phenotype suggests that the N-terminal porin deletion is a dominant deletion.
oai:ojs.ojs.lib.umanitoba.ca:article/460
2018-11-07T18:33:15Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/460
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
E-cadherin, catenin, cytoskeletal interactions and induced pluripotency
Kawalec, Martha; University of Manitoba
Hombach-Klonisch, Sabine; University of Manitoba
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/460
en_US
Pluripotency is defined as the capability of cells to differentiate into cell types derived from each of the three embryonic germ layers (Kelly et al., 2011). Induced pluripotency defines a process of epigenetic reprogramming in which epigenetic changes implemented during differentiation are reversed to generate cells with a stem-like phenotype. Fibroblasts (Takahashi and Yamanaka, 2006; Sommer et al., 2009), human keratinocytes (Aasen et al., 2008) and nasal mucosal cells (Ono et al., 2012) can be reprogrammed to stem-like cells with introduction of four stem cell transcription factors Oct4, KLF4, Sox2 and c-Myc (OKSM). Previous studies have provided evidence that the adhesion and cellular signaling provided by a glycoprotein, known as E-cadherin, has essential functions in pluripotency. Induced pluripotency has potential medical application which the induced pluripotent stem cells (iPSCs) apply as clinical tools for modeling diseases, drug development, and to deliver cell-replacement therapy to support regenerative medicine (Goldthwaite, 2011).The present review summarizes our current knowledge on the role of E-cadherin, its cellular signaling and cytoskeletal interactions in the induction and maintenance of pluripotent cells.
oai:ojs.ojs.lib.umanitoba.ca:article/461
2018-11-07T18:33:15Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/461
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Impacts on declining moose populations in southeastern Manitoba
Shura, Chelsey; University of Manitoba
Roth, James; University of Manitoba
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/461
en_US
Moose (Alces alces) populations in eastern and central North America have declined in many parts of their southern range. Many potential impacts on moose have been suggested as contributing to moose declines, including changing habitat disturbance regimes and enhanced disease transmission through increasing deer populations. We examined factors affecting moose in Game Hunting Area (GHA) 26 in southeastern Manitoba, where moose populations have declined substantially, by comparing provincial aerial survey data with features of the landscape. Moose were more likely to be found in areas with high logging (>25%) and recent forest fires (within the past 30 years), indicating that moose respond favorably to habitat disturbances. The presence of roads did not affect the likelihood of moose presence. Moose were negatively impacted by white-tailed deer (Odocoileus virginianus). We used model selection to determine the variables most important for predicting the presence of moose in GHA 26. The best model included the presence of deer, logging, and forest fires. Among the variables considered, deer presence had the highest relative importance. This study suggests that to increase moose numbers, controlled burns and potential logging areas should be considered as ways to produce new habitat and plant growth for moose in the area. Managing the deer population also could control the effect of the deer brain worm (Parelaphostrongylus tenuis) on the moose population in GHA 26.
oai:ojs.ojs.lib.umanitoba.ca:article/462
2018-11-07T18:33:15Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/462
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
The response of Scenedesmus quadricauda and Selenastrum capricornutum to glyphosate toxicity (Roundup® formulation) with cellular growth and chlorophyll-a synthesis as endpoints
Ewacha, Michelle V.A.; University of Manitoba
Goldsborough, Gordon L.; University of Manitoba
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/462
en_US
Glyphosate is a commonly-used agricultural herbicide which enters freshwater sources and risks affecting non-target aquatic organisms, including algae. In this study, lab cultures of Scenedesmus quadricauda and Selenastrum capricornutum were inoculated with glyphosate (Roundup® formulation) to determine its impact on cellular growth and chlorophyll-a (Ch-a) synthesis. A concentration of 10 mg/L of glyphosate significantly inhibited growth and Ch-a synthesis in S. quadricauda and S. capricornutum. Concentrations ranging from 0 to 3 mg/L of glyphosate did not affect cellular growth or Ch-a synthesis in either species. A concentration of 6 mg/L of glyphosate did initially reduce the growth of S. quadricauda, but growth recovered and Ch-a concentrations were high. For S. capricornutum, growth and Ch-a synthesis were low, and pheophytin concentrations were significantly elevated relative to the control at 6 mg/L of glyphosate. Based these results, S. capricornutum was more sensitive to glyphosate than S. quadricauda, which was likely due to differences in the surface area to volume ratios between the species. In the future, algal toxicity should be studied in greater detail by conducting mesocosm studies within the natural aquatic environment.
oai:ojs.ojs.lib.umanitoba.ca:article/464
2018-11-07T18:33:15Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/464
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Anti-Nutritional Factors in Yellow Pea Flours that Underwent Different Processing and Their Pizza Dough Products
Chen, Yuming; Department of Food Science, University of Manitoba
Arntfield, Susan; University of Manitoba
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/464
en_US
Anti-nutritional factors, including phytic acids, total phenolic acids, and trypsin inhibitor activities were evaluated in pea flours and their pizza dough products. Commercial yellow pea flours were prepared with different milling technologies (stone milling, hammer milling and pin milling) and laboratory pea flours were treated using different heat processes (micronization and roasting). Milling technologies had a significant effect on the total phenolic acid content. The type of heat process had no significant effect on phytic acid levels. There was a significant reduction in trypsin inhibitor activities due to the thermal processing yet some trypsin inhibitors were still present in the final cooked pizza dough.
oai:ojs.ojs.lib.umanitoba.ca:article/515
2018-11-07T18:33:03Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/515
2018-11-07T18:33:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 2 (2016): PMUSER
Blue jays (Cyanocitta cristata) do not spontaneously eavesdrop on red squirrel (Tamiasciurus hudsonicus) squeals to locate food
Wood, Thomas J.; University of Manitoba
Hare, James F.; University of Manitoba
2016-12-24
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/515
en_US
Organisms often eavesdrop on the cues and signals produced by other species to obtain information about their environment. Blue jays have dietary overlap with red squirrels, and learn to associate novel stimuli with food rewards in an experimental setting. Red squirrels produce “squeals†when contesting food resources with conspecifics. We tested whether blue jays eavesdrop on red squirrels by playing back red squirrel squeals, red squirrel rattles, white noise, and chick-a-dee calls to blue jays in Winnipeg, Manitoba. Additionally we examined the response of passerine birds in general to the playbacks, and attempted to condition free-living blue jays to respond to the playback of the squeal treatments. Results of the playbacks suggested that neither blue jays nor other passerines eavesdrop on vocalizations emitted in the context of red squirrel disputes over food. Conditioning trials did not produce any conditioned responses from blue jays; however, the limited number of trials performed does not constitute a robust test of the possible acquisition of a classically-conditioned response. Blue jays may also refrain from eavesdropping on red squirrel squeals as they are not reliable indicators of food resources, or because in an urban environment, blue jays readily learn the locations of bird feeders or other reliable food sources without eavesdropping on red squirrels.
oai:ojs.ojs.lib.umanitoba.ca:article/552
2018-11-07T18:33:03Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/552
2018-11-07T18:33:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 2 (2016): PMUSER
Variation in snowshoe hare density near Churchill, Manitoba estimated using pellet counts
Freeth, Courtney; University of Manitoba
Teillet, Matthew R. E.; University of Manitoba
Roth, James D.; University of Manitoba
2016-12-24
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/552
en_US
Snowshoe hares (Lepus americanus) are a keystone species in the Boreal Forest of Canada and their well-characterized population cycles can strongly influence the abundance of their predators. We examined annual variation in snowshoe hare density near Churchill, Manitoba, using counts of hare fecal pellets from 2012 to 2015. We used a regression formula to estimate the density of snowshoe hares based on fecal pellet density. Our estimates of snowshoe hare densities were highest in the first year of study, which may reflect a bias due to pellets accumulating from previous years, and we found no difference in hare density estimates in the subsequent three years. These results suggest the forest-tundra ecozone may be marginal habitat for snowshoe hares, precluding rapid increases in hare density, so population densities of snowshoe hares in Churchill may not cycle in their historic 10-year intervals. However, the northward advancement of the tree line with climate warming may improve habitat conditions for snowshoe hares, and thus the predator populations they typically support.
oai:ojs.ojs.lib.umanitoba.ca:article/553
2018-11-07T18:33:03Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/553
2018-11-07T18:33:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 2 (2016): PMUSER
Grey wolf selection for moose calves and factors influencing prey species consumption in southeastern Manitoba
Naaykens, Taylor; University of Manitoba
Roth, James D.; University of Manitoba
Dupont, Daniel; Manitoba Conservation and Water Stewardship
2016-12-24
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/553
en_US
Moose populations in southern Manitoba have declined in recent years, and although the cause of the decline is yet unknown, wolf predation has been suggested as a potential contributing factor. We used fecal analysis combined with telemetry data to test the influences of social structure, relative prey abundance, and season on wolf consumption of moose and other prey species. We tested for influences of social structure, relative prey abundance, and summer time period specifically on consumption of moose calves in summer, and compared consumption of moose calves to the relative occurrence of calves in the overall moose population. Wolves hunting in a pack were more likely to consume moose than solitary wolves, while solitary wolves were more likely to consume other non-ungulate prey. Solitary wolves were more likely to eat deer in areas where deer were more abundant, but we found no difference in consumption of moose by solitary wolves between areas of greater moose abundance. Beaver were consumed more in summer, but consumption of other prey species did not differ seasonally. We found no effect of social structure, relative prey abundance, or summer time period on consumption of moose calves. Wolves killed calves preferentially, in excess of their relative abundance, only in late summer. Management of wolves aimed at decreasing wolf numbers in southeastern Manitoba may also reduce predation on adult moose by decreasing pack sizes and interrupting the social organization.
oai:ojs.ojs.lib.umanitoba.ca:article/556
2018-11-07T18:33:03Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/556
2018-11-07T18:33:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 2 (2016): PMUSER
Cloning, Expression and Purification of the Antimicrobial Targets EtfB and EtfDh of Burkholderia cenocepacia
Balasko, Allison L.; University of Manitoba
Stietz, Maria S.; University of Manitoba
Cardona, Silvia T.; University of Manitoba
2016-12-24
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/556
en_US
Burkholderia cenocepacia is a pathogenic bacterium that causes life-threatening infections in cystic fibrosis patients (Shommu, Vogel, & Storey, 2015). Through a conditional growth mutant library, two essential genes of this bacterium, etfB and etfDh, encoding an electron transfer flavoprotein unit and an etf dehydrogenase respectively, have been identified. While the essential role of these proteins in B. cenocepacia is unknown, protein characterization and interaction analysis will aid in the development of their capacity as antimicrobial targets. The experimental goal of this study was to clone, express and purify etfB and etfDh. Both genes were separately cloned into the bacterial plasmid pE-SUMO and transformed into E. coli BL21-DE3 GOLD. Protein expression of EtfB and EtfDh was induced by isopropyl β-D-1-thiogalactopyranoside (IPTG), and the soluble and insoluble protein fractions were analyzed. EtfB was found in the soluble fraction, which is expected as ETFs are cytoplasmic proteins (Winsor, Khaira, Van Rossum, Lo, Whiteside, & Brinkman, 2008). EtfDh was mainly present in the insoluble fraction suggesting that the B. cenocepacia EtfDh is a membrane-bound dehydrogenase (Winsor et al., 2008). The protein purification process has resulted in a highly pure EtfB and EtfDh samples, which can be used to raise antibodies. Consequently, antibodies raised against these proteins will allow immunofluorescence and coimmunoprecipitation studies of EtfB and EtfDh. The results of the current work provide the tools to address the hypothesis of an intracellular interaction between cytoplasmic EtfB and membrane-bound EtfDh to further understand their role and essentiality in B. cenocepacia.
oai:ojs.ojs.lib.umanitoba.ca:article/558
2018-11-07T18:33:03Z
pmuser:ART
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v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/558
2018-11-07T18:33:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 2 (2016): PMUSER
The duckweed Lemna minor recovers following 7, 14, 21, and 28 day exposures to atrazine at environmental concentrations
Lau, Carlie; University of Manitoba
Moore, Dana; University of Manitoba
Hanson, Mark L.; University of Manitoba
2016-12-24
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/558
en_US
We characterized the ability of the duckweed Lemna minor to recover from 7, 14, 21, and 28-day exposures to the herbicide atrazine. Static renewal assays were performed for each duration (with an exposure series of 0, 10, 20, 40, 80, 160 and 320 µg/L atrazine) followed by a 7-day recovery period in clean media. We observed full recovery (no statistical difference from control) in dry mass, frond number, and plant number growth rates at concentrations typically found in the environment ( ≥80 µg/L atrazine), regardless of the exposure duration. The USEPA currently regulates atrazine on an aquatic plant Concentration Equivalent Level of Concern of 10 µg/L (60-day average concentration) and our data support this decision.
oai:ojs.ojs.lib.umanitoba.ca:article/560
2018-11-07T18:33:03Z
pmuser:ART
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v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/560
2018-11-07T18:33:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 2 (2016): PMUSER
Are aquatic snails reservoirs and vectors of microbes bearing antibiotic resistant genes?
Reeves, Angela; University of Manitoba
Lobson, Chelsea; University of Manitoba
Challis, Jonathan K.; University of Manitoba
Moore, Dana; University of Manitoba
Hanson, Mark L.; University of Manitoba
2016-12-24
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/560
en_US
The role of Stagnicola elodes, a freshwater snail, as a reservoir and vector for transporting antibiotic resistant genes (ARGs) was explored under laboratory conditions. We hypothesized that ARG-bearing microorganisms would become part of the snail gut microbiome allowing ARGs to be spread from their initial point of origin should snails be transported or the input of pharmaceuticals cease. We exposed snails in jars for 14 days wherein they grazed on biofilms that contained microbes resistant to the antibiotic sulfamethoxazole (SMX). Snails were then transferred to fresh media with no SMX for either a 7-day hibernation or depuration period. SMX-related ARGs were quantified in the 14-day treatment and 7-day depuration and hibernation systems. On day 14, treated jars had 6.6% of SMX resistant genes in the water phase, and the 7-day hibernation and depuration vessels had an average of 3.9% and 1.4%, respectively, relative to the total water-borne microbial community. Methods of extracting snail samples for SMX-related ARGs were unsuccessful. This was attributed to the snails’ having extensive mucus sugars that interfere with extraction. Our findings suggest that ARGs could be transferred to new environments from snails excreting gut flora in their feces, warranting further investigation.
oai:ojs.ojs.lib.umanitoba.ca:article/576
2018-11-07T18:33:03Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/576
2018-11-07T18:33:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 2 (2016): PMUSER
Letter from the Editor-in-Chief
Challis, Jonathan K.; University of Manitoba
2016-12-24
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/576
en_US
Introducing the 2016 issue of PMUSER.
oai:ojs.ojs.lib.umanitoba.ca:article/577
2018-11-07T18:32:31Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/letter
2018-11-07T18:32:31Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 3 (2017): PMUSER
Letter from the Editor-in-Chief
Doering, Matthew J. D.; University of Manitoba
2018-01-01
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/letter
en_US
Introducing the Volume 3, 2017 issue of PMUSER.
oai:ojs.ojs.lib.umanitoba.ca:article/578
2018-11-07T18:32:31Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/Warrack-et-al
2018-11-07T18:32:31Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 3 (2017): PMUSER
Microplastics Flowing into Lake Winnipeg: Densities, Sources, Flux, and Fish Exposures
Warrack, Sarah; University of Manitoba
Challis, Jonathan K.; University of Manitoba
Hanson, Mark L.; University of Manitoba
Rennie, Michael D.; Lakehead University
2018-01-01
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/Warrack-et-al
en_US
Microplastics (plastic particles < 5.0 mm in diameter) have been detected in freshwater ecosystems worldwide. Recently, surface concentrations of microplastics in Lake Winnipeg, Manitoba were shown to be comparable to those observed in Lake Erie, Ontario, despite large differences between the lakes in terms of population density and industrial activity. To better understand potential sources of microplastics into Lake Winnipeg, two inflowing tributaries (the Red and Assiniboine rivers) and the lake outflow (the Nelson River) were sampled for microplastics. To determine the role of wastewater treatment plants in contributing to microplastic pollution, microplastic densities upstream and downstream of wastewater treatment plants in the city of Winnipeg were compared. Finally, to determine the bioavailability of microplastics to fishes, we evaluated the presence of microplastics in the gastrointestinal tracts of two fish species, common carp (Cyprinus carpio)Â and sauger (Sander canadensis) collected from the Red River. Microplastics in the Red and Assiniboine rivers were comparable to those from Great Lake tributaries, but were elevated four to six times relative to concentrations observed in the Nelson River, suggesting significant losses to settling in Lake Winnipeg. On average, densities of microplastics downstream of wastewater treatment plants were elevated, and a significant correlation was observed between standardized daily effluent discharge from Winnipeg and river flux of microplastics/m2/s. On average, sauger were found to contain one microplastic particle and carp were found to contain seven microplastics within their gastrointestinal tracts. The number of particles ingested did not appear to affect body condition of fish collected in this study.Â
oai:ojs.ojs.lib.umanitoba.ca:article/580
2018-11-07T18:32:31Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/Carrette-El-Salakawy
2018-11-07T18:32:31Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 3 (2017): PMUSER
Evaluation of Punching Shear Strength Models for Glass Fibre-Reinforced Polymer (GFRP)-Reinforced Concrete (RC) Flat Plates Subjected to Unbalanced Moment-Shear Transfer
Carrette, Jordan K.; University of Manitoba
El-Salakawy, Ehab; University of Manitoba
2018-01-01
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/Carrette-El-Salakawy
en_US
The provisions for the punching shear strength of glass fibre-reinforced polymer (GFRP)-reinforced concrete (RC) flat plates in the current North American and Japanese standards were investigated based on a database of experimental results of both interior and edge slab-column connections. In total, the results of 39 slab-column connections ranging extensively in their geometric and material properties were collected from the literature and analyzed to assess the accuracy and validity of the code provisions. In addition, the applicability of eight proposed analytical models from the literature was verified against the results of the dataset. It was demonstrated that the Canadian and Japanese standards provide the most consistent and accurate predictions; however, the American guidelines highly underestimate the capacities. In contrast, many of the proposed analytical models yielded inconsistent and unsafe estimates when applied to both concentrically and eccentrically loaded interior and edge connections. The assumption of a linear stress variation proposed by the eccentric shear stress model was validated for GFRP-RC edge specimens subjected to unbalanced moment-shear transfer.Â
oai:ojs.ojs.lib.umanitoba.ca:article/586
2018-11-07T18:32:31Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/toc
2018-11-07T18:32:31Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 3 (2017): PMUSER
Table of Contents
TOC, PMUSER
2018-01-01
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/toc
en_US
The contents of the volume and description of the cover art.
oai:ojs.ojs.lib.umanitoba.ca:article/587
2018-11-07T18:32:31Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/masthead
2018-11-07T18:32:31Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 3 (2017): PMUSER
Masthead
Masthead, PMUSER
2018-01-01
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/masthead
en_US
The editorial team and information about PMUSER.
oai:ojs.ojs.lib.umanitoba.ca:article/588
2018-11-07T18:32:31Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/faculty-profiles
2018-11-07T18:32:31Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 3 (2017): PMUSER
University of Manitoba Faculty Profiles
Anderson, John; University of Manitoba
Hanson, Mark; University of Manitoba
2018-01-01
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/faculty-profiles
en_US
Q&A with faculty members.
oai:ojs.ojs.lib.umanitoba.ca:article/604
2020-04-28T16:38:53Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/604
2020-04-28T16:38:53Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Analysis and Prediction of Patterns in Futures Trading Datasets Using LSTM
Park, Beom-Jin; University of Manitoba
Chmelyk, Christopher
Heslop, Daniel
Zhengyu, Gu
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/604
en_US
One of the most promising tools in recent years for the analysis and prediction of time series data, which includes financial market data has been the use of neural networks. To ensure the accuracy of the outcomes of these systems, it is critical to overcome the vanishing gradient and exploding gradient problems that often occur when recurrent neural networks (RNN) process data. Long Short-Term Memory (LSTM) has been shown to provide good performance when dealing with time series datasets. This paper will explore the feasibility of using an RNN with LSTM as a predictive tool for use with futures trading data. Using a dataset comprised of all futures trading occurring on the Bourse de Montréal (TMX) during a 9-month period from January to September 2015, we assessed the predictive effectiveness of an RNN in predicting the price of front-end contracts for the futures symbol BAX. We found that while an RNN provided a degree of short-term predictive capability, this capability did not extend beyond a couple of days. Although it failed as a trading instrument to predict futures prices, the RNN could detect, identify, and reflect underlying trends in the data, indicating the tool may hold promise in the detection of trading patterns.Â
oai:ojs.ojs.lib.umanitoba.ca:article/605
2018-11-07T18:33:15Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/605
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Table of Contents
PMUSER, PMUSER
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/605
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/606
2018-11-07T18:33:15Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/606
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Letter from the Editor-in-Chief
Titus, PMUSER Founder & Editor-in-Chief, John Arthur; PMUSER Founder & Editor-in-Chief
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/606
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/607
2018-11-07T18:33:15Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/607
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Profile of Dr. Digvir S. Jayas
PMUSER, PMUSER
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/607
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/609
2018-11-07T18:33:15Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/609
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Masthead
PMUSER, PMUSER
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/609
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/610
2018-11-07T18:33:15Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/610
2018-11-07T18:33:15Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 1 (2013): PMUSER
Profile of Dr. Georg Hausner
PMUSER, PMUSER
2018-04-18
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/610
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/613
2020-04-28T16:39:01Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/613
2020-04-28T16:39:01Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Can Tomatosphere Tomato Seeds Germinate After Two Exposures to Space, in Mars-Like Conditions?
Ives, Carter
Perrie, Graeme
Stamler, Adam
Nickel, Maria
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/613
en_US
Tomatoes are commonly used throughout the world as a nutritious food source. Tomatoes are one of the only fruits to have had their seeds exposed to the harsh conditions of space travel. If humans are ever to colonize other planets then there will be a need for seeds to travel through space to those extraplanetary estinations. The objective of this study was to compare germination and growth of twice-space-exposed (TSE) tomato seeds with control-ground-truth (CGT) seeds. We found that the twice-space-exposed seeds had similar germination rates to the ground truth seeds but lower mortality. The TSE seeds were also taller from 18 to 56 days after planting than the CGT seeds. These results show that the frequency of space exposure is not a limiting factor for seed germination and growth.
oai:ojs.ojs.lib.umanitoba.ca:article/614
2020-04-28T16:38:40Z
pmuser:REV
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/614
2020-04-28T16:38:40Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Investigation of the Physiological and Behavioural Adaptations of Arctic Fish to Their Northern Aquatic Habitat
Ferguson, Émilie; University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/614
en_US
Arctic fish have adapted to the extreme winters and wide range of temperatures that characterize the Arctic. They have adapted physiologically with the presence of antifreeze glycoproteins in their fluids and through hemoglobin multiplicity. In addition, they have adapted their behaviour to best utilize the conditions of the northern waters throughout the year. These adaptations have allowed Arctic fish to thrive in the cold and changing Arctic Ocean.
oai:ojs.ojs.lib.umanitoba.ca:article/615
2020-04-28T16:38:38Z
pmuser:REV
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/615
2020-04-28T16:38:38Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Cryogenic Hibernation: A Review of Overwintering Mechanisms in the North American Wood Frog (Rana sylvatica)
Dueck, Codey E.; University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/615
en_US
The North American wood frog, Rana sylvatica, can inhabit extremely cold climates utilizing a variety of adaptions. The purpose of this review was to identify the driving mechanisms behind the overwintering response of R. sylvatica. The major response factors that were found to be instrumental to survival include environmental and behavioral adaptations, internal freezing point depression by increasing blood and tissue concentration of glucose and urea, and reduced metabolic activity by increasing blood and tissue concentration of urea. These factors were contrasted between the Alaskan and Ohioan variants to explore and explain the relationships between their overwintering response factors and their geographical positioning.
oai:ojs.ojs.lib.umanitoba.ca:article/616
2020-04-28T16:38:46Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/616
2020-04-28T16:38:46Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Characterizing the Spatial Heterogeneity of Basic Physical Properties of Lake and Peat Soils as it Relates to the Moss Spur Peatland, Manitoba
Patterson, Steven R.
Whittington, Pete; Brandon University
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/616
en_US
Moss Spur (the study site) is a remnant vacuum-harvested peatland in south eastern Manitoba that has, with little intervention, revegetated on its own. It is quite atypical that Moss Spur has revegetated with little intervention. As part of unraveling this mystery, this study investigates the spatial heterogeneity of vegetation and underlying lake sediments at Moss Spur. Physical properties like hydraulic conductivity, bulk density and porosity relate to hydrology and the ability of water to flow, which are of importance in this study. This study looked at those properties and attempted to find a connection between the physical properties of the peat and underlying sediments and the heterogeneity of surface vegetation found at different study areas at Moss Spur. Peat cores as well as sediment cores were extracted from sub-locations within sites. Sample cores where tested via a variety of methods to establish their physical and hydraulic properties. Heterogeneity based on core samples was revealed between sites matching the general heterogeneity of surface vegetation at Moss Spur. This study presents some regionally key aspects to understanding groundwater relationships with respect to harvested bogs and Manitoba wetlands in general. The variability in lake sediment properties across even the relatively small site of Moss Spur suggests that lake sediment properties cannot be assumed to be the same at every location. Heterogeneity of the surface vegetation in regards to the spontaneous regeneration is found to be correlated with the underlying peat and lake sediments.
oai:ojs.ojs.lib.umanitoba.ca:article/619
2020-04-28T16:38:30Z
pmuser:REV
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/619
2020-04-28T16:38:30Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Evolutionary Perspectives on Male Homosexuality: A Literature Review
Mashmoushi, Yasmina; University of Manitoba
Mzouri, Mitan; University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/619
en_US
This review provides a comprehensive coverage of the leading evolutionary hypotheses to date on male homosexuality (namely the sexual antagonism model, the tipping-point model, and the kin selection hypothesis). It does so by first (1), surveying prominent findings on the nature and biological causes of male homosexuality; second (2), discussing the effects of male homosexuality on individual fitness; and third (3), outlining the contending evolutionary theories on male homosexuality and critically evaluating each against current pertinent empirical evidence. This review reveals that male homosexuality is a complex, multifaceted phenomenon influenced by an interplay of genomic and environmental factors that may have had unique evolutionary trajectories. Thus, there is likely more than one evolutionary mechanism at play responsible for the maintenance of gay alleles in the human population. Current research largely supports the notion that gay alleles bestow fitness benefits on heterosexual carriers. The tipping-point model and sexual antagonism model, but not the kin selection hypothesis, are in line with current empirical evidence. Future research into the genomic underpinnings of sexual orientation in homosexual males and its genetic equivalents in heterosexual males and females may allow for further evaluation of these hypotheses.           Keywords: human evolution, evolutionary psychology, mating preferences, sexual orientation, homosexuality
oai:ojs.ojs.lib.umanitoba.ca:article/620
2020-04-28T16:38:51Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/620
2020-04-28T16:38:51Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Impact of Drainage Ditch Construction and Subsequent Use on a Treed Bog Adjacent to a Peat Harvesting Operation, Southwestern Manitoba, Canada
Edwards, Lindsay; Brandon University
Whittington, Pete; Brandon University
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/620
en_US
Manitoba has the most peatland by provincial area of any province in Canada, and contributes ~13% of Canada’s horticultural peatland production. Peat harvesting requires the lowering of the water table; this water is usually channeled to a fluvial system (e.g., a river) but in some cased must be actively pumped. In the case of the South Julius bog in Manitoba, the pumped discharge was through a treed bog. The trees in the bog on one side of the drainage ditch were dead, but on the other side were alive. This study investigated possible hydrological causes by instrumenting three transects of wells that ran perpendicular to the drainage ditch and extended 20 and 50 m into the bog on the dead and live side, respectively. Average water tables on the live side were 15 cm lower than the dead side. The dead side water levels were similar to a natural fen located adjacent to the treed bog. Construction of the drainage ditch yielded a >20 cm high berm that ran alongside the live side, functionally isolating the live side from the surplus water in the drainage ditch, maintaining the lower and healthier water table treed bog vegetation requires. We recommend that future drainage ditches be constructed in such a way that berms on both sides are made, functionally creating a canal to the fen, where the excess water can be more easily dealt with by the fen vegetation adapted to wetter average conditions.
oai:ojs.ojs.lib.umanitoba.ca:article/625
2020-04-28T16:38:28Z
pmuser:REV
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v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/625
2020-04-28T16:38:28Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
The Genomic History of Elephants Provides Proof of a Third African Species and has Important Implications for Conservation
Kratzer, Kateryna; University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/625
en_US
African elephants have historically been classified as a single species. New research into the genomic history of proboscideans has confirmed that the African savanna elephant (Loxodonta africana) and the African forest elephant (Loxodonta cyclotis) are in fact distinct species. The depauperate genetic variability of L. africana which may be due to a bottleneck in their evolutionary history increases their species vulnerability. Reclassifying these elephants as distinct species would promote unique conservation approaches for each species, which are likely necessary to prevent the further decline and potential extinction of elephant populations.  Keywords: Proboscidean, Phylogeny, Species, Genetic bottleneck, Conservation
oai:ojs.ojs.lib.umanitoba.ca:article/630
2020-04-28T16:39:07Z
pmuser:PER
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/630
2020-04-28T16:39:07Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Agroecology is Important to Ecological Practices
Ferguson, Karine
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/630
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/631
2020-04-28T16:38:36Z
pmuser:REV
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/631
2020-04-28T16:38:36Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Adaptive Radiation in Antarctic Notothenioids
Alsip, Laura; University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/631
en_US
Antarctic notothenioids have undergone adaptive radiation in order to survive. Some challenges notothenioids face includes maintaining proper organ function, increased blood viscosity, maintaining appropriate protein levels, and conserving energy. Many of the solutions that the Notothenioidei have evolved to these challenges are considered to be ‘disadaptations’, as they are typically only advantageous under these unique environmental conditions. This paper explores the mechanisms used by the Notothenioidei to survive the Antarctic waters, despite all the environmental pressures.
oai:ojs.ojs.lib.umanitoba.ca:article/635
2020-04-28T16:39:03Z
pmuser:ED
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/635
2020-04-28T16:39:03Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
A Vision Quest Experience of a History of Knowledge
Guillas, River S.
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/635
en_US
It is the right and responsibility of Indigenous Nations to ensure the knowledge transference of our Sacred Traditions and Traditional Knowledges.
oai:ojs.ojs.lib.umanitoba.ca:article/636
2020-04-28T16:38:58Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/636
2020-04-28T16:38:58Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Perceptions of Underrepresentation Among Students in STEM Fields: An Empirical Analysis
Saj, Danielle
Farenhorst, Annemieke
Peter, Tracey
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/636
en_US
Gender bias in science has been thoroughly researched and it is well known that women are underrepresented within post-secondary Science, Technology, Engineering, and Mathematics (herein stem) programs. Limiting women’s participation in science carries heavy consequences for both the economy and scientific community. Therefore, gender inequality must be addressed with urgency. This research is focused on the following research questions: 1) are there gender differences in how students perceive the underrepresentation of women in stem; 2) are there gender differences in student support for initiatives that could enhance gender equity in stem? Not surprisingly, the results suggest that women consider proportionate gender representation to be more important than men (61.9% vs. 39.6%; χ 2 [2, 158]=7.05, p=0.029, Cramer’s V=0.211). Further, when considering their own experiences, 20% of female respondents reported feeling underrepresented at university. These perceptions were more common among women studying stem subjects than other subjects (33% vs. 14%; χ 2 (1, 339)=16.9, p<0.001, Cramer’s V=0.22). Women expressed a greater level of support than men for many programs that would address this issue and a greater level of interest in participating in them. This interest was heightened among women who felt underrepresented. This suggests that women desire opportunities to connect with like peers through outreach and mentorship programs. These solutions require increased levels of resources, as well as the cooperation of those who do not identify as underrepresented individuals. Post-secondary institutions should consider this as they develop new ways of addressing this issue.
oai:ojs.ojs.lib.umanitoba.ca:article/637
2020-04-28T16:38:49Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/637
2020-04-28T16:38:49Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Developing a Genotyping Scheme for Mycobacterium abscessus Complex Using Whole Genome Sequencing Data
Wuzinski, Michelle; University of Manitoba
Sharma, Meenu K.
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/637
en_US
Mycobacterium abscessus complex is a rapid growing non-tuberculous mycobacteria (NTM) and a clinically significant pathogen capable of causing varying infections in humans. It is notoriously difficult to treat due to its inducible resistant state to clarithromycin and intrinsic resistant states to other drugs including rifampicin. Typing schemes for bacterial pathogens provide numerous applications including sourcing an outbreak, identifying cross contamination, chain of transmission and surveillance. However, they either lack or are limited for many NTMs including M. abscessus complex. The current publically available scheme on PubMLST has not been updated in several years and was only able to apply a sequence type to less than half of tested isolates. This project was aimed at creating a workflow for the development of a multi-locus sequence typing (MLST) scheme using whole genome data. A total of 104 genomes and 14 loci were used to build the scheme (including 3 type strains of each of the 3 subspecies). All 7 genes from the PubMLST scheme were incorporated namely, argH, cya, gnd, murC, pta, purH, and rpoB and were expanded by 6, 9, 12, 8, 12, 10, and 8 alleles, respectively. Another 7 novel genes were added including hsp65, erm(41), arr, rrs, rrl, gyrA, and gyrB with 9, 14, 20, 7, 25, 24, 22 alleles, respectively with 62 unique sequence types were identified among all isolates. This scheme can also differentiate M. abscessus complex to the subspecies level on the basis of 3 discriminatory genes and includes 6 genes related to antimicrobial resistance. Supplementary information available online at: http://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/682/699Â
oai:ojs.ojs.lib.umanitoba.ca:article/659
2020-04-28T16:38:33Z
pmuser:REV
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/659
2020-04-28T16:38:33Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Social Behaviour and Trophic Interactions of Gray Wolves (Canis lupus), the Keystone Species in Yellowstone National Park
Lavallée, Christie D.; University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/659
en_US
The gray wolf (Canis lupus) is an apex predator described as a keystone species in Yellowstone National Park (YNP). Their importance in this habitat was unknown until they were anthropogenically extirpated in the 1920s. The 75-year absence of gray wolves in YNP led to severe declines in biodiversity, species richness, and habitat quality, all of which were reversed upon wolf reintroduction in 1995. Complex social behaviours and trophic interactions are the driving forces behind the gray wolves’ ability to directly and indirectly provide benefits for almost all species of fauna and flora within Yellowstone National Park. This paper reviews how wolves’ interactions with trophic level as well as animal behavioural changes have helped in reshaping the dynamics of Yellowstone National Park.
oai:ojs.ojs.lib.umanitoba.ca:article/660
2020-04-28T16:38:44Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/660
2020-04-28T16:38:44Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Interaction Between Reed Canary Grass and Purple Loosestrife in a Replacement Series
Guo, Zijing
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/660
en_US
Both reed canary grass (Phalaris spp.) and purple loosestrife (Lythrum salicaria) are common invasive plants in Canadian wetlands that can erode biodiversity of native plants. A replacement series study was conducted in a conservatory greenhouse to examine effects of replacement ratio and watering regimes on competitive ability between reed canary grass and purple loosestrife. The ratio of reed canary grass to purple loosestrife was in a 4:0, 3:1, 2:2, 1:3, 0:4 sequence based on the final number per pot. The dry weight of plants was used to quantify their competitive ability. The results showed that the plants in waterlogged and mesic treatments had similar biomass, indicating watering regime did not have a significant impact on competition. Different replacement ratios had a significant impact on biomass accumulation. The 1:3 reed canary grass: purple loosestrife treatments had the highest total biomass, the highest reed canary grass biomass, and the lowest purple loosestrife biomass. Reed canary grass always had higher dry weight per plant than purple loosestrife in intercropping treatments. The per plant biomass of reed canary grass increased as more reed canary grass was being replaced by purple loosestrife in areplacement series, suggesting growth of reed canary grass was more affected by intraspecific competition than competition with purple loosestrife. These results indicate that reed canary grass is more competitive than purple loosestrife and the attempt of supressing growth of purple loosestrife using slightly elevated water level is not viable. If we want to maintain a high level of biodiversity in wetland ecosystems, we should consider control of reed canary grass and purple loosestrife simultaneously.
oai:ojs.ojs.lib.umanitoba.ca:article/663
2020-04-28T16:39:05Z
pmuser:ED
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/663
2020-04-28T16:39:05Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Agriculture Production and Quality of the Environment
Jeke, Nicholson N.
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/663
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/664
2018-12-31T09:36:54Z
pmuser:PHO
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/664
2018-12-31T09:36:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Seeing the Value of Research in Agriculture
So, Kenny
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/664
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/665
2018-12-31T09:36:54Z
pmuser:FEA
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/665
2018-12-31T09:36:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Research Team Tackles Global Warming Using Inedible Grain By-Products
Zirangey, David
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/665
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/666
2018-12-31T09:36:54Z
pmuser:PPR
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/666
2018-12-31T09:36:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
U of M Agroecology Program Fosters Undergraduate Research
Zirangey, David
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/666
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/667
2018-12-31T09:36:54Z
pmuser:SPR
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/667
2018-12-31T09:36:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Feedback and Guidance Essential to Success: Lindsey McKenty
Zirangey, David
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/667
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/668
2018-12-31T09:36:54Z
pmuser:SPR
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/668
2018-12-31T09:36:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Thinking Sustainably: From Hobby Turtles to Honours Thesis
Zirangey, David
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/668
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/669
2018-12-31T09:36:54Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/669
2018-12-31T09:36:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Masthead
PMUSER, PMUSER
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/669
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/670
2020-04-28T16:38:42Z
pmuser:ART
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/670
2020-04-28T16:38:42Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Construction of A-optimal Designs for Linear Models
Zheng, Xiang; University of Manitoba
Mandal, Saumen; University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/670
en_US
For estimating parameters of a statistical model, it is important to minimize the variances of the estimators. Efficiency of an estimator increases as its variance becomes smaller. Sometimes instead of minimizing the variances of the individual parameters, it is important to minimize the total or average variance of all the parameter estimators. This refers to A-optimality in the context of optimal experimental design. Motivated by this fact, we construct A-optimal designs for some regression models using a class of algorithms, indexed by a function which depends on the derivatives of the criterion function. We also develop strategies for constructing A-optimal designs and investigate techniques for improving convergence rates by using the properties of the directional derivatives of the criterion function. We explored the design construction through some examples including one practical problem arising in chemistry.
oai:ojs.ojs.lib.umanitoba.ca:article/671
2018-12-31T09:36:54Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/671
2018-12-31T09:36:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Special Issue: Agriculture
Table of Contents
PMUSER, editor-in-chief
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/671
en_US
oai:ojs.ojs.lib.umanitoba.ca:article/681
2020-04-28T16:38:26Z
pmuser:ONL
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/681
2020-04-28T16:38:26Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Proceedings of the University of Manitoba Undergraduate Research Poster Competition
Undergraduate Research Competition, University of Manitoba
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/681
en_US
Abstracts and titles of students interested in publishing their abstracts or poster titles of the 2018 University of Manitoba Undergraduate Research Poster Competition.
oai:ojs.ojs.lib.umanitoba.ca:article/682
2018-12-31T09:38:21Z
pmuser:ONL
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/682
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Supplementary Information for "Developing a Genotyping Scheme for Mycobacterium abscessus Complex Using Whole Genome Sequencing Data"
Wuzinski, Michelle
Sharma, Meenu K
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/682
en_US
Supplementary Information for Developing a Genotyping Scheme for Mycobacterium abscessus Complex Using Whole Genome Sequencing DataWuzinski & Sharma, 2018, PMUSER, 4(1): 37–45.http://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/637/715DOI: 10.5203/pmuser.201841637
oai:ojs.ojs.lib.umanitoba.ca:article/683
2018-12-31T09:38:21Z
pmuser:PZ
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/683
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
The Hapless Editors
Doering, Matthew J. D.; Editor-in-Chief
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/683
en_US
As the editors were carrying the stack of review papers accepted for publication in Volume 4, Issue 1 their skates (we’re in Canada, eh) flew from underneath them and the papers were scattered....Can you help the hapless editors piece together the issue from the clues provided before their publication deadline?Â
oai:ojs.ojs.lib.umanitoba.ca:article/684
2018-12-31T09:38:21Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/684
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Table of Contents
TOC, PMUSER; Editor-in-Chief
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/684
en_US
The contents of Volume 4 Issue 1.
oai:ojs.ojs.lib.umanitoba.ca:article/685
2018-12-31T09:38:21Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/685
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Masthead
Masthead, PMUSER; Editor-in-Chief
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/685
en_US
The editorial team and information about PMUSER and the cover art.
oai:ojs.ojs.lib.umanitoba.ca:article/686
2018-12-31T09:38:21Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/686
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Letter From the Editor-in-Chief
Doering, Matthew J. D.; Editor-in-Chief
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/686
en_US
Volume 4: A Publishing Year of Firsts
oai:ojs.ojs.lib.umanitoba.ca:article/687
2018-12-31T09:38:21Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/687
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Undergraduate Student Fights Against Epidemic of Heart Disease in Canada
Zirangey, David
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/687
en_US
A profile of fourth-year biochemistry student Matthew Stecy.
oai:ojs.ojs.lib.umanitoba.ca:article/688
2018-12-31T09:38:21Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/688
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Tackling Multidrug-Resistant Bacteria Through Novel Approaches
Zirangey, David
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/688
en_US
A profile of fourth-year chemistry student Liam Berry.
oai:ojs.ojs.lib.umanitoba.ca:article/689
2018-12-31T09:38:21Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/689
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
Is the Migration of Manitoba's Purple Martin Population Mistimed with Prey Emergence?
Zirangey, David
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/689
en_US
A profile of ecology and environmental biology honours student Ellyne Geurts.
oai:ojs.ojs.lib.umanitoba.ca:article/690
2018-12-31T09:38:21Z
pmuser:FM
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/690
2018-12-31T09:38:21Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
University of Manitoba Faculty Profiles
Roth, Jim
Bay, Denice
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/690
en_US
Q&A with faculty members.
oai:ojs.ojs.lib.umanitoba.ca:article/691
2020-04-28T16:38:54Z
pmuser:PER
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/691
2020-04-28T16:38:54Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 4 (2018): Issue 1
SSEP: Dare to Dream Big Things
Ives, Carter
Perrie, Graeme
Stamler, Adam
Nickel, Maria
2018-12-31
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/691
en_US
SSEP (Student Spaceflight Experiments Program) inspires students to strive for greatness.
oai:ojs.ojs.lib.umanitoba.ca:article/702
2020-01-16T20:04:13Z
pmuser:REV
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/702
2020-01-16T20:04:13Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 5 (2019); 28-32
Role of RNA-interference in Crop Pests and Disease Vector Control
Arya, Vibhuti; University of Manitoba
2020-01-03
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/702
en_US
Insect pests are a threat to meeting food demands of the ever-increasing human population. They are also the cause of many vector borne diseases in humans leading to countless deaths. Present insect pest control strategies including chemical pesticides, developing transgenic plants and organic certified chemical pesticides have numerous limitations in terms of their effectiveness and target specificity. However, genetic method that makes use of the sequence specificity of RNA interference (RNAi) has great potential in controlling pest insect populations. RNAi is a naturally occurring conserved process responsible for protection against viral pathogens. Efficiency of RNAi is variable among different pest insects. It is dependent on method of double stranded RNA (dsRNA) delivery, gene selection techniques, dsRNA expression and presence of off-target effects. Moreover, environmental risks involved in use of RNAi based insecticides in natural crop field scenario is debatable. Despite the challenges faced, RNAi mediated gene knockout of different pest insect genes has potential usefulness in controlling pest insect growth and survival.
oai:ojs.ojs.lib.umanitoba.ca:article/704
2020-01-16T20:04:13Z
pmuser:MRV
driver
v2
https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/704
2020-01-16T20:04:13Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 5 (2019); 33-35
Gonadal Development, Social Structure, and Implications of Protandry by Aggressive Dominance in Amphiprion Anemonefish
Jorgenson, Ivory; University of Manitoba
2020-01-03
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/704
en_US
Anemonefish of the genus Amphiprion have developed a mating system involving protandrous sequential hermaphroditism, wherein male sexual maturation occurs prior to female sexual maturation within an individual1. This review will summarize changes in the gonad and individual behaviour through the transition from juvenile to male to female, as well as explore the relationship between body size and fecundity in Amphiprion. A protandrous mating system is advantageous due to the low abundance of host anemones, as it ensures that a migrating anemonefish can find a potential mate in any group it encounters, and loss of a mate will always trigger a replacement. This strategy ultimately grants Amphiprion the ability to withstand unpredictable host abundance and maximize safety and offspring production, encouraging the proliferation of the genus2.
Keywords: anemonefish, Amphiprion, protandry, gonad, aggressive dominance
oai:ojs.ojs.lib.umanitoba.ca:article/817
2020-01-16T20:04:13Z
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https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/817
2020-01-16T20:04:13Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 5 (2019); 14-27
Crushed glass as a constructed wetland substrate: Invertebrate community responses to simulated wastewater inputs.
Humeniuk, Braedon; University of Manitoba, Department of Environment and Geography
Chaves Barquero, Luis Gerardo ; University of Manitoba, Department of Environment and Geography; Costa Rica Institute of Technology, Department of Chemistry
Wong, Charles ; The University of Winnipeg, Department of Chemistry; Southern California Coastal Water Research Project, Department of Chemistry
Hanson, Mark ; University of Manitoba, Department of Environment and Geography
2020-01-03
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/817
en_US
Constructed wetlands (CWs) are an increasingly common polishing step prior to the release of municipal wastewater treatment facility effluents, especially in smaller and more isolated communities. It is hypothesized that recycled crushed glass could be a suitable alternative matrix for CW construction. In comparison to commonly used substrates, recycled crushed glass has several advantages: it is less expensive, more environmentally friendly, and it can be transformed into various sizes to meet specific design requirements. The material is inert, transparent, has large pore spaces, and significant surface area. Components that impair receiving water quality (e.g., nutrients, pharmaceuticals, and pathogenic bacteria) could be reduced by enhancing light penetration, macrophytes for uptake and assimilation, surface area for microbes, and overall retention time. To explore the ability of crushed glass to support relevant biological communities, twelve outdoor mesocosms were established with and without emergent plants, and crushed glass was contrasted with a typical gravel base in triplicate. Specifically, we examined the response of the zooplankton community. After these systems were acclimated, they were treated with a single pulse of synthetic wastewater (e.g., nutrients, pharmaceuticals, and salts). Mesocosms exposed to the synthetic effluent developed a significantly (p<0.05) different invertebrate community response in total abundance when compared to the unexposed control treatment. There were no significant (p>0.05) differences among the mesocosms with crushed glass as a substrate (including controls) for all diversity indices, indicating that the addition of synthetic effluent and macrophytes had no significant impacts on the invertebrate community structure. Overall, recycled crushed glass was determined to be suitable matrix for zooplankton communities, with water quality and effective treatments being maintained relative to gravel systems. Though the treatments with a gravel substrate had greater total invertebrate abundance, it was found that the gravel treatments were significantly (p<0.05) less diverse (Shannon’s index) and had less evenness than all other treatments with glass substrates. We recommend that future studies should explore the effectiveness of recycled crushed glass in CWs on a larger scale, as these results suggest that recycled crushed glass could be a viable surrogate for gravel in subsurface filtration processes.
oai:ojs.ojs.lib.umanitoba.ca:article/837
2020-01-16T20:04:13Z
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https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/837
2020-01-16T20:04:13Z
Proceedings of Manitoba's Undergraduate Science and Engineering Research
Vol. 5 (2019)
Cover
Guillas, River Steele; Editor-in-Chief
Steele, William
2020-01-03
Proceedings of Manitoba's Undergraduate Science and Engineering Research by University of Manitoba is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The authors hold the copyright to published articles without restriction, and retain publishing rights.Â
url:https://ojs.lib.umanitoba.ca/index.php/pmuser/article/view/837
en_US
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