Now showing items 2016-2035 of 2478

    • Saccade latency delays in young apolipoprotein E (APOE) epsilon 4 carriers 

      Niechwiej-Szwedo, Ewa; Tapper, Anthony; Gonzalez, David; Bradley, Ryan M.; Duncan, Robin (Elsevier, 2018-11-01)
      The apolipoprotein E (APOE) epsilon 4 isoform has been associated with a significantly greater risk of developing late onset Alzheimer’s disease (AD). However, the negative effects of APOE-ε4 allele on cognitive function ...
    • Sagging resistance of warm formed aluminum brazing sheet 

      Benoit, Michael J.; Kaur, R.; Wells, Mary; Jin, H.; Amirkhiz, B. Shalchi; Winkler, Sooky (Elsevier, 2018-04-01)
      Interrupted tensile tests, performed between room temperature (RT) and 250°C, were used to simulate warm forming of an AA3003/AA4045 brazing sheet. Brazing performance was predicted from sagging distance measurements after ...
    • Salinization enhances eutrophication symptoms in a cold temperate urban lake 

      Radosavljevic, Jovana; Slowinski, Stephanie; Shafii, Mahyar; Rezanezhad, Fereidoun; Akbarzadeh, Zahra; Withers, William; Van Cappellen, Philippe (Elsevier, 2022-11-10)
      Salinization of inland freshwaters is observed around the world, but particularly in cold temperate regions due to the runoff of salt applied on roads as de-icing agents during the winter. This is the case for Lake Wilcox, ...
    • Salinization increases eutrophication symptoms in freshwater urban lakes of North America 

      Radosavljevic, Jovana; Slowinski, Stephanie; Zhou, Bowen; Parsons, Chris T.; Rezanezhad, Fereidoun; Alcott, Lewis; Shafii, Mahyar; Van Cappellen, Philippe (University of Waterloo, 2023-05)
      The acceleration of global urbanization continues to fuel concerns surrounding water quality impairments in urban lakes, particularly their eutrophication. Eutrophication of freshwater environments is generally assumed to ...
    • The Saliva Exposome for Monitoring of Individuals’ Health Trajectories 

      Bessonneau, Vincent; Pawliszyn, Janusz; Rappaport, Stephen M. (Environmental Health Perspectives - United States Federal Government, 2017-07-20)
      Background: There is increasing evidence that environmental, rather than genetic, factors are the major causes of most chronic diseases. By measuring entire classes of chemicals in archived biospecimens, exposome-wide ...
    • Sample size and robust marginal methods for cluster-randomized trials with censored event times 

      Cook, Richard J.; Zhong, Yujie (Wiley, 2015-03-15)
      In cluster-randomized trials, intervention effects are often formulated by specifying marginal models, fitting them under a working independence assumption, and using robust variance estimates to address the association ...
    • Sandwich and probe problems for excluding paths 

      Figueiredo, Celina Miraglia Herrera de; Spirkl, Sophie (Elsevier, 2018-12-31)
      Let Pk denote an induced path on k vertices. For k ≥ 5, we show that the Pk-free sandwich problem, partitioned probe problem, and unpartitioned probe problem are NP-complete. For k ≤ 4, it is known that the Pk-free sandwich ...
    • The Sandwich Problem for Decompositions and Almost Monotone Properties 

      Chudnovsky, Maria; Figueiredo, Celina Miraglia Herrera de; Spirkl, Sophie (Springer Nature, 2018)
      We consider the graph sandwich problem and introduce almost monotone properties, for which the sandwich problem can be reduced to the recognition problem. We show that the property of containing a graph in C as an induced ...
    • Scalable image segmentation via decoupled sub-graph compression 

      Medeiros, Rafael Sachett; Wong, Alexander; Scharcanski, Jacob (Elsevier, 2018-06-01)
      Dealing with large images is an on-going challenge in image segmentation, where many of the current methods run into computational and/or memory complexity issues. This work presents a novel decoupled sub-graph compression ...
    • Scale-dependent anisotropy in forced stratified turbulence 

      Lang, Christopher J.; Waite, Michael L (American Physical Society, 2019-04)
      In stratified turbulence, buoyancy forces inhibit vertical motion and lead to anisotropy over a wide range of length scales, which is characterized by layerwise pancake vortices, thin regions of strong shear, and patches ...
    • Scared of compassion: Fear of compassion in anxiety, mood, and non-clinical groups 

      Merritt, Olivia; Purdon, Christine (British Psychological Society, 2020-05-04)
      Objectives. Fear of receiving compassion from others, expressing compassion to others, and being compassionate towards oneself have been identified as potentially important factors in the persistence of depression, stress ...
    • School start time changes in the COMPASS study: associations with youth sleep duration, physical activity, and screen time 

      Patte, Karen A.; Qian, Wei; Cole, Adam G.; Faulkner, Guy; Chaput, Jean-Philippe; Carson, Valerie; Leatherdale, Scott T. (Elsevier, 2018-10-12)
      Background To date, no longitudinal population-based studies of school start times have been conducted within Canada. School schedule changes provided an opportunity to examine start times in association with youth sleep, ...
    • Science Communication Sample Slide Deck 

      Weaver, Kari; Mercer, Kathryn (Springer Nature, 2021-01-26)
      Sample slides to accompany the book chapter: Weaver, K. D., Mercer, K., & Lamont, G. (2021). “The RADAR framework for evaluating sources of information.” In S. Rowland & L. Kuchel (Eds.) Science + SciComm + Work: A guide ...
    • A Scoping Review of Frailty and Acute Care in Middle-Aged and Older Individuals with Recommendations for Future Research 

      Hogan, David B.; Maxwell, Colleen J.; Afilalo, Jonathan; Arora, Rakesh C.; Bagshaw, Sean; Basran, Jenny; Bergman, Howard; Bronskill, Susan; Carter, Caitlin A.; Dixon, Elijah; Hemmelgarn, Brenda; Madden, Kenneth; MITNITSKI, ARNOLD; Rolfson, Darryl; Stelfox, Henry; Tam-Tham, Helen; Wunsch, Hannah (Canadian Geriatrics Society, 2017-03-31)
      There is general agreement that frailty is a state of heightened vulnerability to stressors arising from impairments in multiple systems leading to declines in homeostatic reserve and resiliency, but unresolved issues ...
    • Score tests based on a finite mixture model of Markov processes under intermittent observation 

      Jiang, Shu; Cook, Richard J. (Wiley, 2019-07-20)
      A mixture model is described, which accommodates different Markov processes governing disease progression in a finite set of latent classes. We give special attention to the setting in which individuals are examined ...
    • Score Tests for Association Under Response-dependent Sampling Designs for Expensive Covariates 

      Lawless, Jerald F. (Oxford Journals, 2015-11-27)
      Response-dependent sampling is widely used in settings where certain variables are expensive to obtain. Estimation has been thoroughly investigated but recent applications have emphasized tests of association for expensive ...
    • Scrappy: Using Scrap Material as Infill to Make Fabrication More Sustainable 

      Wall, Ludwig Wilhelm; Jacobson, Alec; Vogel, Daniel; Schneider, Oliver (ACM Press, 2021-05-06)
      We present a software system for fused deposition modelling 3D printing that replaces infill material with scrap to reduce material and energy consumption. Example scrap objects include unused 3D prints from prototyping ...
    • Searching for a DNAzyme version of the leadzyme 

      Saran, Runjhun; Chen, Qingyun; Liu, Juewen (Springer, 2015-10-12)
      The leadzyme refers to a small ribozyme that cleaves a RNA substrate in the presence of Pb2+. In an optimized form, the enzyme strand contains only two unpaired nucleotides. Most RNA-cleaving DNAzymes are much longer. Two ...
    • Searching for a perceived gaze direction using eye tracking 

      Itier, Roxane J.; Palancia, Adam (Association for Research in Visison and Ophthalmology, 2011-02-01)
      The purpose of the current study was to use eye tracking to better understand the “stare-in-the-crowd effect”—the notion that direct gaze is more easily detected than averted gaze in a crowd of opposite-gaze distractors. ...
    • Searching for the Sanctuary of Leukothea in Kolchis 

      Coskun, Altay (Franz Steiner Verlag, 2020-12-01)
      Strabo mentions a sanctuary of Leukothea, together with an Oracle of Phrixos, in the Moschike somewhere in Kolchis (11.2.17f. 498f.C). O. Lordkipanidze (1972) suggested a location in modern Vani at the confluence of the ...


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