Institution
University of Saskatchewan
Education•Saskatoon, Saskatchewan, Canada•
About: University of Saskatchewan is a education organization based out in Saskatoon, Saskatchewan, Canada. It is known for research contribution in the topics: Population & Health care. The organization has 25021 authors who have published 52579 publications receiving 1483049 citations. The organization is also known as: USask.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: The findings suggest that oxidative stress occurs in diabetic state and that oxidative damage to tissues may be a contributory factor in complications associated with diabetes.
Abstract: We hypothesized that oxygen free radicals (OFRs) may be involved in pathogenesis of diabetic complications. We therefore investigated the levels of lipid peroxidation by measuring thiobarbituric acid reactive substances (TBARS) and activity of antioxidant enzymes [superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT)] in tissues and blood of streptozotocin (STZ)-induced diabetic rats. The animals were divided into two groups: control and diabetic. After 10 weeks (wks) of diabetes the animals were sacrificed and liver, heart, pancreas, kidney and blood were collected for measurement of various biochemical parameters. Diabetes was associated with a significant increase in TBARS in pancreas, heart and blood. The activity of CAT increased in liver, heart and blood but decreased in kidney. GSH-Px activity increased in pancreas and kidney while SOD activity increased in liver, heart and pancreas. Our findings suggest that oxidative stress occurs in diabetic state and that oxidative damage to tissues may be a contributory factor in complications associated with diabetes.
384 citations
••
TL;DR: In this article, the authors explored whether the themes that emerge in studies of bullying and peer harassment among youth are related to bullying and harassment among adolescents. But, they did not explore whether bullying and bullying were related to each other.
Abstract: Given the rapid increase in studies of bullying and peer harassment among youth, it becomes important to understand just what is being researched. This study explored whether the themes that emerge...
384 citations
••
TL;DR: The ubiquity of subsurface water compartmentalization found here, and the segregation of storm types relative to hydrological and ecological fluxes, may be used to improve numerical simulations of runoff generation, stream water transit time and evaporation–transpiration partitioning.
Abstract: Soil water is usually assumed to be equally available for all purposes, supplying plant transpiration as well as groundwater and streamflow; however, a study of hydrogen and oxygen isotopes from 47 globally distributed sites shows that in fact the water used by plants tends to be isotopically distinct from the water that feeds streamflow. Soil water is usually assumed to be available for all purposes in equal measure, supplying plant transpiration as well as groundwater and streamflow. Building on prior but limited studies, Jaivime Evaristo et al. have assembled a dataset of hydrogen and oxygen isotopes — drawn from widely distributed sites — and show that ecohydrological separation is the rule. Water used by plants tends to be isotopically distinct from that used for streamflow, suggesting that hydrological separation of precipitation inputs creates distinct pools of water resources. This finding implies that that existing land surface model parameterizations of plant physiological processes and streamflow can be made more realistic through the incorporation of ecohydrological separation. Current land surface models assume that groundwater, streamflow and plant transpiration are all sourced and mediated by the same well mixed water reservoir—the soil. However, recent work in Oregon1 and Mexico2 has shown evidence of ecohydrological separation, whereby different subsurface compartmentalized pools of water supply either plant transpiration fluxes or the combined fluxes of groundwater and streamflow. These findings have not yet been widely tested. Here we use hydrogen and oxygen isotopic data (2H/1H (δ2H) and 18O/16O (δ18O)) from 47 globally distributed sites to show that ecohydrological separation is widespread across different biomes. Precipitation, stream water and groundwater from each site plot approximately along the δ2H/δ18O slope of local precipitation inputs. But soil and plant xylem waters extracted from the 47 sites all plot below the local stream water and groundwater on the meteoric water line, suggesting that plants use soil water that does not itself contribute to groundwater recharge or streamflow. Our results further show that, at 80% of the sites, the precipitation that supplies groundwater recharge and streamflow is different from the water that supplies parts of soil water recharge and plant transpiration. The ubiquity of subsurface water compartmentalization found here, and the segregation of storm types relative to hydrological and ecological fluxes, may be used to improve numerical simulations of runoff generation, stream water transit time and evaporation–transpiration partitioning. Future land surface model parameterizations should be closely examined for how vegetation, groundwater recharge and streamflow are assumed to be coupled.
383 citations
••
TL;DR: In this paper, it was shown that komatiites can only be formed in hot rising convective jets in the mantle, and that the most magnesian known eruption temperature was at up to 2200°C at pressures of 18 GPa corresponding to a mantle potential temperature of 1900°C.
383 citations
••
TL;DR: This review focuses on the principle and activation techniques used in H2O2 and persulfate based ISCO processes and the research gaps have been identified based on the knowledge of current research and recommendations are made for further understanding of ISco processes.
383 citations
Authors
Showing all 25277 results
Name | H-index | Papers | Citations |
---|---|---|---|
Tomas Hökfelt | 158 | 1033 | 95979 |
Frederick Wolfe | 119 | 417 | 101272 |
Christopher G. Goetz | 116 | 651 | 59510 |
John P. Giesy | 114 | 1162 | 62790 |
Helmut Kettenmann | 104 | 380 | 40211 |
Paul M. O'Byrne | 104 | 605 | 56520 |
Susan S. Taylor | 104 | 518 | 42108 |
Keith A. Hobson | 103 | 653 | 41300 |
Mark S. Tremblay | 100 | 541 | 43843 |
James F. Fries | 100 | 369 | 83589 |
Gordon McKay | 97 | 661 | 61390 |
Jonathan D. Adachi | 96 | 589 | 31641 |
Wenjun Zhang | 96 | 976 | 38530 |
William C. Dement | 96 | 340 | 43014 |
Chris Ryan | 95 | 971 | 34388 |