Waterloo Research

Permanent URI for this collection

https://uwspace.uwaterloo.ca/handle/10012/9972

This is the University of Waterloo Research collection.

Waterloo faculty, students, and staff can contact us or visit the UWSpace guide to learn more about depositing their research.

NOTE: This collection does not include graduate Theses & Dissertations or Major Research Projects.

Browse

Now showing 1 - 20 of 2504

Observations of submesoscale eddy-driven heat transport at an ice shelf calving front
(Springer Nature, 2022-06-22) Friedrichs, Drew M.; McInerney, Jasmin B. T.; Oldroyd, Holly J.; Lee, Won Sang; Yun, Sukyoung; Yoon, Seung-Tae; Stevens, Craig L.; Zappa, Christopher J.; Dow, Christine F.; Mueller, Derek; Steiner, Oscar Sepulveda; Forrest, Alexander L.
Antarctica’s ice shelves buttress the continent’s terrestrial ice, helping slow the loss of grounded ice into the ocean and limiting sea level rise. Ice-ocean interaction plays a critical role in ice shelf stability by driving basal melt rates. Consequently, improved prediction of the future state of ice shelves lies in understanding the coastal ocean mechanics that deliver heat to their cavities. Here, we present autonomous glider-based observations of a coherent structure at the calving front of a cold-water cavity ice shelf (Nansen Ice Shelf, East Antarctica). This ~10 km-wide eddy dominated the local ocean circulation in the austral summer of 2018/2019, promoting an upwelling of cold ice shelf water and a deepening of warm surface water. Microstructure turbulence measurements show a resulting maximum vertical heat transport of 10 W m−2 at depths equivalent to the ice shelf draft. Similar eddy-driven heat transport further into the ice shelf cavity would support enhanced summertime melt in regions of shallower ice draft.
Modeling the Deformation Regime of Thwaites Glacier, West Antarctica, Using a Simple Flow Reaction for Ice Anisotropy (ESTAR)
(Wiley; American Geophysical Union (AGU), 2022-02-21) McCormack, Felicity S.; Warner, Roland C.; Seroussi, Helene; Dow, Christine F.; Roberts, Jason L.; Treverrow, Adam
ce deformation dominates the evolution of ice shelf flow and the slow-moving regions in the interior of ice sheets. However, deformation may be poorly represented in large-scale ice sheet models that use the Glen flow relation, due to its questionable applicability to the steady-state flow of anisotropic ice that prevails in ice sheets, having been derived from secondary creep rates of isotropic ice. We assess the deformation regimes of Thwaites Glacier, West Antarctica, using the Glen and “Empirical Scalar Tertiary Anisotropy Regime”, (ESTAR) flow relations, the latter being derived from steady-state deformation rates of anisotropic ice. For grounded ice, the character of the flow relation determines the contribution of deformation to overall flow, with ESTAR producing greater bed-parallel shear deformation than the standard Glen flow relation. The ESTAR experiments show larger basal shear stress maxima than the standard Glen experiment because ESTAR treats the responses to simple shear stresses and compression stresses differently, reducing the role of lateral and longitudinal stresses in momentum balance. On the Thwaites Glacier Tongue, ESTAR provides the best match to observed speeds by accounting for the differing effects of stresses on ice flow. Our results highlight the importance of the numerical description of anisotropy, particularly: In regions of transition from deformation-dominated to sliding-dominated flow; in the approach to the grounding line, and across ice shelves. Given the importance of these locations in determining mass flux into the ocean, our results have implications for projections of sea level change from Antarctic ice loss.
Basal channels drive active surface hydrology and transverse ice shelf fracture
(Science, 2018-06-13) Dow, Christine F.; Lee, Won Sang; Greenbaum, Jamin S.; Greene, Chad A.; Blankenship, Donald D.; Poinar, Kristin; Forrest, Alexander L.; Young, Duncan A.; Zappa, Christopher J.
Ice shelves control sea-level rise through frictional resistance, which slows the seaward flow of grounded glacial ice. Evidence from around Antarctica indicates that ice shelves are thinning and weakening, primarily driven by warm ocean water entering into the shelf cavities. We have identified a mechanism for ice shelf destabilization where basal channels underneath the shelves cause ice thinning that drives fracture perpendicular to flow. These channels also result in ice surface deformation, which diverts supraglacial rivers into the transverse fractures. We report direct evidence that a major 2016 calving event at Nansen Ice Shelf in the Ross Sea was the result of fracture driven by such channelized thinning and demonstrate that similar basal channel-driven transverse fractures occur elsewhere in Greenland and Antarctica. In the event of increased basal and surface melt resulting from rising ocean and air temperatures, ice shelves will become increasingly vulnerable to these tandem effects of basal channel destabilitization.
Seismic evidence for complex sedimentary control of Greenland Ice Sheet flow
(Science, 2021-08-16) Kulessa, Bernd; Hubbard, Alun L.; Booth, Adam D.; Bougamont, Marion; Dow, Christine F.; Doyle, Samuel H.; Christoffersen, Poul; Lindback, Katrin; Pettersson, Rickard; Fitzpatrick, Andrew A. W.; Jones, Glenn A.
The land-terminating margin of the Greenland Ice Sheet has slowed down in recent decades, although the causes and implications for future ice flow are unclear. Explained originally by a self-regulating mechanism where basal slip reduces as drainage evolves from low to high efficiency, recent numerical modeling invokes a sedimentary control of ice sheet flow as an alternative hypothesis. Although both hypotheses can explain the recent slowdown, their respective forecasts of a long-term deceleration versus an acceleration of ice flow are contradictory. We present amplitude-versus-angle seismic data as the first observational test of the alternative hypothesis. We document transient modifications of basal sediment strengths by rapid subglacial drainages of supraglacial lakes, the primary current control on summer ice sheet flow according to our numerical model. Our observations agree with simulations of initial postdrainage sediment weakening and ice flow accelerations, and subsequent sediment restrengthening and ice flow decelerations, and thus confirm the alternative hypothesis. Although simulated melt season acceleration of ice flow due to weakening of subglacial sediments does not currently outweigh winter slowdown forced by self-regulation, they could dominate over the longer term. Subglacial sediments beneath the Greenland Ice Sheet must therefore be mapped and characterized, and a sedimentary control of ice flow must be evaluated against competing self-regulation mechanisms.
Characterizing subglacial hydrology within the Amery Ice Shelf catchment using numerical modeling and satellite altimetry
(Wiley, 2024-04-20) Wearing, Martin G.; Dow, Christine F.; Goldberg, Daniel N.; Gourmelen, Noel; Hogg, Anna E.; Jakob, Livia
Meltwater forms at the base of the Antarctic Ice Sheet due to geothermal heat flux (GHF) and basal frictional dissipation. Despite the relatively small volume, this water has a profound effect on ice-sheet dynamics. However, subglacial melting and hydrology in Antarctica remain highly uncertain, limiting our ability to assess their impact on ice-sheet dynamics. Here we examine subglacial hydrology within the Amery Ice Shelf catchment, East Antarctica, using the subglacial hydrology model GlaDS. We calculate subglacial melt rates using a higher-order ice-flow model and two GHF estimates. We find a catchment-wide melt rate of 7.03 Gt year−1 (standard deviation = 1.94 Gt year−1), which is ≥50% greater than previous estimates. The contribution from basal dissipation is approximately 40% of that from GHF. However, beneath fast-flowing ice streams, basal dissipation is an order of magnitude larger than GHF, leading to a significant increase in channelized subglacial flux upstream of the grounding line. We validate GlaDS using high-resolution interferometric-swath radar altimetry, with which we detect active subglacial lakes and fine-scale ice-shelf basal melting. We find a network of subglacial channels that connects areas of deep subglacial water coincident with active subglacial lakes, and channelized discharge at the grounding line coinciding with enhanced ice-shelf basal melting. The concentrated discharge of meltwater provides 36% of the freshwater released into the ice-shelf cavity, in addition to ice-shelf basal melting. This suggests that ice-shelf basal melting is strongly influenced by subglacial hydrology and could be affected by future changes in subglacial discharge, such as lake drainage or channel rerouting.
Subglacial discharge accelerates future retreat of Denman and Scott Glaciers, East Antarctica
(American Association for the Advancement of Science, 2023-10-27) Pelle, Tyler; Greenbaum, Jamin S.; Dow, Christine F.; Jenkins, Adrian; Morlighem, Mathieu
Ice shelf basal melting is the primary mechanism driving mass loss from the Antarctic Ice Sheet, yet it is unknown how the localized melt enhancement from subglacial discharge will affect future Antarctic glacial retreat. We develop a parameterization of ice shelf basal melt that accounts for both ocean and subglacial discharge forcing and apply it in future projections of Denman and Scott Glaciers, East Antarctica, through 2300. In forward simulations, subglacial discharge accelerates the onset of retreat of these systems into the deepest continental trench on Earth by 25 years. During this retreat, Denman Glacier alone contributes 0.33 millimeters per year to global sea level rise, comparable to half of the contemporary sea level contribution of the entire Antarctic Ice Sheet. Our results stress the importance of resolving complex interactions between the ice, ocean, and subglacial environments in future Antarctic Ice Sheet projections.
Radarsat constellation mission derived winter glacier velocities for the St. Elias Icefield, Yukon/Alaska: 2022 and 2023
(Taylor & Francis, 2023-10-10) Van Wychen, W.; Bayer, Courtney; Copland, Luke; Brummel, Erika; Dow, Christine
Here we use high resolution (5 m) Radarsat Constellation Mission (RCM) imagery acquired in winters 2022 and 2023 to determine motion across glaciers of the St. Elias Icefield in Yukon/Alaska. Our regional velocity mapping largely conforms with previous studies, with faster motion (>600 m/yr) for the glaciers originating in the Yukon that drain southward and westward to the coast of Alaska and relatively slower motion (100–400 m/yr) for the land terminating glaciers that drain eastward and northeastward and stay within the Yukon. We also identify two new glacier surges within the icefields: the surge of Nàłùdäy (Lowell) Glacier in Winter 2022, and Chitina Glacier in Winter 2023, and track the progression of each surge from January to March utilizing ∼4-day repeat RCM imagery. To evaluate the quality of RCM-derived velocities, we compare our results with 50 simultaneous measurements at three on-ice dGPS stations located on two Yukon glaciers and find the average absolute difference between measurements to be 6.6 m/yr. Our results demonstrate the utility of RCM data to determine glacier motion across large regions with complex topography, to support process-based studies of fast flowing and surge-type glaciers and continue the legacy of velocity products derived from the Radarsat-2 mission.
Migration of the shear margins at Thwaites Glacier: Dependence on basal conditions and testablities against field data.
(AGU, 2023-03-07) Summers, Paul T.; Elsworth, Cooper W.; Dow, Christine F.; Suckale, Jenny
Projections of global sea level depend sensitively on whether Thwaites Glacier, Antarctica, will continue to lose ice rapidly. Prior studies have focused primarily on understanding the evolution of ice velocity and whether the reverse-sloping bed at Thwaites Glacier could drive irreversible retreat. However, the overall ice flux to the ocean and the possibility of irreversible retreat depend not only on the ice speed but also on the width of the main ice trunk. Here, we complement prior work by focusing specifically on understanding whether the lateral boundaries of the main ice trunk, termed shear margins, might migrate over time. We hypothesize that the shear margins at Thwaites Glacier will migrate on a decadal timescale in response to continued ice thinning and surface steepening. We test this hypothesis by developing a depth-averaged, thermomechanical free-boundary model that captures the complex topography underneath the glacier and solves for both the ice velocity and for the position of the shear margins. We find that both shear margins are prone to migration in response to ice thinning with basal strength and surface slope steepening determining their relative motion. We construct four end-member cases of basal strength that represent different physical properties governing friction at the glacier bed and present two cases of ice thinning to contrast the effects of surface steepening and ice thinning. We test our model by hindcasting historic data and discuss how data from ongoing field campaigns could further be used to test our model.
A multi-resolution approach to point cloud registration without control points
(MDPI, 2023-02-20) Bash, Eleanor A.; Wecker, Lakin; Rahman, Mir Mustafizur; Dow, Christine F.; McDermid, Greg; Samavati, Faramarz F.; Whitehead, Ken; Moorman, Brian J.; Medrzycka, Dorota; Copland, Luke
Terrestrial photographic imagery combined with structure-from-motion (SfM) provides a relatively easy-to-implement method for monitoring environmental systems, even in remote and rough terrain. However, the collection of in-situ positioning data and the identification of control points required for georeferencing in SfM processing is the primary roadblock to using SfM in difficult-to-access locations; it is also the primary bottleneck for using SfM in a time series. We describe a novel, computationally efficient, and semi-automated approach for georeferencing unreferenced point clouds (UPC) derived from terrestrial overlapping photos to a reference dataset (e.g., DEM or aerial point cloud; hereafter RPC) in order to address this problem. The approach utilizes a Discrete Global Grid System (DGGS), which allows us to capitalize on easily collected rough information about camera deployment to coarsely register the UPC using the RPC. The DGGS also provides a hierarchical set of grids which supports a hierarchical modified iterative closest point algorithm with natural correspondence between the UPC and RPC. The approach requires minimal interaction in a user-friendly interface, while allowing for user adjustment of parameters and inspection of results. We illustrate the approach with two case studies: a close-range (<1 km) vertical glacier calving front reconstructed from two cameras at Fountain Glacier, Nunavut and a long-range (>3 km) scene of relatively flat glacier ice reconstructed from four cameras overlooking Nàłùdäy (Lowell Glacier), Yukon, Canada. We assessed the accuracy of the georeferencing by comparing the UPC to the RPC, as well as surveyed control points; the consistency of the registration was assessed using the difference between successive registered surfaces in the time series. The accuracy of the registration is roughly equal to the ground sampling distance and is consistent across time steps. These results demonstrate the promise of the approach for easy-to-implement georeferencing of point clouds from terrestrial imagery with acceptable accuracy, opening the door for new possibilities in remote monitoring for change-detection, such as monitoring calving rates, glacier surges, or other seasonal changes at remote field locations.
Contextualizing a Scandal: A Brief History of Library and Archives Canada
(Active History, 2024-04-29) Robichaud, Danielle
In his recent callout “LAC: The scandal of the Archives”, Allan Greer shared his experience conducting research over the course of several decades at what is today Library and Archives Canada (LAC). There, he outlines how a shift from user-centered public services and spaces, driven by the expertise of trained archivists, has impacted LAC’s ability to support the meaningful use of its research collections. In doing so, the disjointed state of LAC’s online records is singled out as a point of divide between then (a golden era of people focused spaces and services) and now (a good-luck-out-there era of “digitize it” consequences). Greer calls the state of LAC and its services scandalous. To fully understand the extent to which his claim rings true, however, the context in which this situation arose must be made clear.
The Public Health Implications of the Legalization of Recreational Cannabis: Ontario Public Health Association Position Paper
(Ontario Public Health Association, 2020-09) Akhigbe, Juliet; Ebbadi, Vash; Huynh, Katie; Leckie, James; Major, Maria; Robinson, Cara; Suarly, Michelle; Wasserstein, David
The Ontario Public Health Association (OPHA) is a member-based, not-for-profit association that provides leadership on issues affecting the public’s health and strengthens the impact of those who are active in public and community health throughout Ontario. OPHA has multiple active work groups and task forces that focus on particular public health issues. OPHA’s Cannabis Task Group has focused on developing a comprehensive analysis and literature review to inform the development of a policy position statement on the public health impacts of the upcoming legalization of cannabis in Ontario and Canada. Specific reference and considerations were paid to the context, populations, potential challenges and health equity as they relate to Ontario.
Systematic literature review of SARS-CoV-2 seroprevalence surveys in Canada through April 2021
(Elsevier, 2022-09) Major, Maria; Majowicz, Shannon E.; Oremus, Mark; Jimenez, Laura Juliana; Angulo, Frederick J.; Horton, Susan
Objectives: To estimate the proportion of the population infected by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in Canada through April 2021, 16 months into the coronavirus disease 2019 (COVID-19) pandemic and 4 months after COVID-19 vaccines became available. Methods: Publication databases, preprint servers, public health databases and the grey literature were searched for seroprevalence surveys conducted in Canada from 1 November 2019 to 10 July 2021. Studies were assessed for bias using the Joanna Briggs Checklist. Numbers of infections derived from seroprevalence estimates were compared with reported cases to estimate under-ascertainment ratios. Results: In total, 12 serosurveys with 210,321 participants were identified. Three (25%) serosurveys were conducted at national level, one (8.3%) was conducted at provincial level, and eight (66.7%) were conducted at local level. All 12 serosurveys had moderate or high risk of bias. The proportion of the population infected by April 2021 was low (2.6%). The proportion of the population infected was higher in surveys of residents of long-term care facilities (43.0-86%), workers at long-term care facilities (22.4-32.4%), and workers in healthcare institutions (1.4-14%). Conclusions: As of April 2021, the proportion of the population infected by SARS-CoV-2 was low in the overall population of Canada, but was high in healthcare facilities, particularly long-term care facilities, supporting the need for vaccines.
Impacts of an electricity audit on the total and on-peak consumption of residential households: Findings from a pilot study in Waterloo, Ontario, Canada
(University of Waterloo, 2020-05-01) Bale, Andrea; Hawthornthwaite, Julia; Lyn, Brian; Stephen, Gord; Tobert, Danielle; Rowlands, Ian H.
Against a backdrop of aging infrastructure, growing electricity demand, and local and global concerns over a changing climate, electricity conservation and management has become a top priority in Ontario, Canada. The present study investigated the potential of an electricity audit to reduce total electricity consumption and shift on-peak consumption among 17 residential consumers. Three months following the electricity audit, the sample achieved average total reductions of 9.4% and on-peak reductions of 17.2%. Three years after the audit, total consumption was reduced by 15.6% and on-peak consumption was reduced by 15.5%, on average. A variety of psychological variables and external influences were factored into the consumption analysis, including attitudes, knowledge, weather, control household data, technical upgrades, sociodemographic changes, and social dynamics, to explore their role in the observed consumption changes. Overall, we suggest that the electricity audit, at least indirectly, impacted the consumption behaviour of many households in the sample through increased awareness and understanding. Moreover, we found that exploring each variable in isolation led to an incomplete understanding of its potential impacts, and that applying these lenses or perspectives in sequence helped to contextualize the observed consumption changes in a more robust way. Future work is needed to disentangle the complex interplay of factors influencing electricity consumption, and to differentiate between individual and household-level contributions.
From Motivating to Manipulative: The Use of Deceptive Design in a Game’s Free-to-Play Transition
(Association for Computing Machinery, 2024-10-10) Hadan, Hilda; Sgandurra, Sabrina; Zhang-Kennedy, Leah; Nacke, Lennart
Over the last decade, the free-to-play (F2P) game business model has gained popularity in the games industry. We examine the role of deceptive design during a game’s transition to F2P and its impacts on players. Our analysis focuses on game mechanics and a Reddit analysis of the Overwatch (OW) series after it transitioned to an F2P model. Our study identifies nine game mechanics that use deceptive design patterns. We also identify factors contributing to a negative gameplay experience. Business model transitions in games present possibilities for problematic practices. Our findings identify the need for game developers and publishers to balance player investments and fairness of rewards. A game’s successful transition depends on maintaining fundamental components of player motivation and ensuring transparent communication. Compared to existing taxonomies in other media, games need a comprehensive classification of deceptive design. We emphasize the importance of understanding player perceptions and the impact of deceptive practices in future research.
A systematic mapping review of algorithms for the detection of rhymes, from early digital humanities projects to the rise of large language models
(University of Waterloo, 2024-07-08) Brown, Daniel G.; Hutchinson, Rebecca; Lamb, Carolyn E.
We survey fifty years of algorithms to discover rhymes in natural language text, focusing largely on rhymes in English, but also in Italic and other Germanic languages. Using a systematic mapping review, we filtered from 4704 initially reviewed studies down to 89 that were relevant to our research questions and satisfied our inclusion criteria. Older papers document the history of simple computer algorithms being used to analyze poetry, but these also include some that create text with rhyming patterns. Papers from 2006 to 2016 often include complex algorithms for teasing out complex rhyme definitions, particularly in the domain of rap music. More recent papers have moved to studying the use of large language models (LLMs) and either adapting their mathematical properties, or simply training them on a collection of rhyming text. We explore how grey literature (blogs, open-source programming projects and more) relates to the academic literature in rhyme detection, and we describe the complexity of engaging in systematic reviews of this sort in areas that span many disciplines.
Creativity During Threat to Organizational Survival: The Influence of Employee Creativity on Downsizing Survival Selection
(Sage, 2023-11-30) Halinski, Michael; Boekhorst, Janet A.; Allen, David; Good, Jessica R.L.
Although research consistently shows that employee creativity contributes to positive outcomes for teams and organizations, we have limited insight into how employee creativity shapes the outcomes of those employees who demonstrate such creativity, particularly in the context of environmental uncertainties. Drawing from event system theory and threat rigidity theory, we argue that under a threat to organizational survival, incremental creativity has a positive, and radical creativity has a negative, indirect effect on downsizing survival selection via manager evaluations of employee job performance. Study 1 uses a unique three-wave, three-source field study (n1 = 186) to provide support for our hypotheses. Studies 2 and 3 use experimental data (n2 = 410, n3 = 565) involving different scenarios of threats to organizational survival (i.e., organization's innovation failure, competitor's successful innovation) that provide further support for the hypothesized effects of radical creativity on manager evaluations of employee job performance. Post-hoc analyses reveal novel insights into how managers’ creativity preferences can influence their evaluation of the job performance of employees who demonstrate incremental creativity during threatening events.
Do Sick Coworkers Make us Help Others?: Investigating the Critical Roles of Citizenship Pressure and Psychological Detachment
(Wiley, 2022-01-10) Boekhorst, Janet A.; Halinski, Michael
Although researchers have started to uncover the positive effects of presenteeism, research has yet to unearth the positive implications of coworker presenteeism. We draw from social information processing theory to hypothesize that coworker presenteeism has a positive indirect effect on organizational citizenship behaviors directed towards the organization (OCBOs) and other individuals (OCBIs) via citizenship pressure. Building on these hypotheses, we further theorize that the indirect effect of coworker presenteeism on OCBOs and OCBIs differ when employees are psychologically detached from their organization. Based on data collected using a time-separated research design (n = 277 employees), the results reveal that coworker presenteeism has a positive indirect effect on both forms of OCBs via citizenship pressure. The results further demonstrate that the indirect effect of coworker presenteeism on OCBIs via citizenship pressure strengthens for employees who are psychologically detached from their organization. Importantly, this research shows that there are positive behavioral implications associated with coworker presenteeism.
Fun, Friends, and Creativity: A Social Capital Perspective
(Wiley, 2021-04-27) Boekhorst, Janet A.; Halinski, Michael; Good, Jessica R.L.
Although creativity research has devoted considerable effort toward identifying the antecedents of creativity, there remain important questions about how organizations can foster creativity through social processes. Drawing from social capital theory, we hypothesize a moderated mediation model that investigates the influence of employee participation in fun activities on individual creativity through workplace friendships. We further hypothesize that the strength of this positive indirect effect is weaker for managers compared with non-managers. Our analysis of data collected from a multi-source, three-wave field study (n = 163 employees) reveals a positive mediation between participation in fun activities and incremental creativity (but not radical creativity) via workplace friendships. The results further support our prediction that this positive indirect effect on incremental creativity is weaker for managers compared with non-managers. Our findings not only highlight the practical and theoretical importance of fun activities in generating novel and useful ideas, but the results also reveal that the benefits derived from fun activities (i.e., strengthened friendships, incremental creativity) are particularly salient for non-managers.
The Pragmatic Side of Workplace Heroics: A Self-Interest Perspective on Responding to Mistreatment in Work Teams
(Taylor & Francis, 2022-08-30) Boekhorst, Janet A.; Frawley, Shayna
Research on third-party reactions to workplace mistreatment has often focused on a moral perspective, but has devoted limited attention to the role of self-interest. Drawing from a selfinterest perspective, we develop a conceptual model that examines how self-interest influences third-party responses to mistreatment within work teams. Several important relational (justice reputation, social status, relationship with the target, power) and situational (number of observers, mistreatment intensity) factors are posited to influence third-party perceptions of team members’ expectations for their intervention, and perceptions of the expected salience of their response to their team members. These perceived expectations for intervention are theorized to positively influence the expected salience of their response, which is strengthened under conditions of ethical leadership, ethical climate, and ethical HRM practices. In turn, third parties use a cost-benefit analysis to decide how to respond in a manner that serves their interests, which is moderated by several key factors (probability that intervention alleviates the mistreatment, perceived risk of intervention, third-party vulnerability). We advance a novel process-based conceptual model that provides an alternative lens as to why third parties may intervene during mistreatment within work teams.
Organizational Social Activities and Knowledge Management Behaviors: An Affective Events Perspective
(Wiley, 2022-03-16) Good, Jessica R.L.; Halinski, Michael; Boekhorst, Janet A.
Research indicates that relationship-oriented HR practices can increase organizational knowledge, yet we know little about the effects of relationship-oriented HR practices on employee knowledge management behaviors. Drawing from affective events theory, we examine the indirect effect of participation in one type of relationship-oriented HR practice (i.e., organizational social activities) on three knowledge management behaviors (i.e., knowledge sharing, knowledge hiding, and knowledge manipulating) via positive affect, as well as the conditional indirect effect of intrinsic motivation for organizational social activities on these relationships. Utilizing a time-separated field study (n = 163), our analysis reveals positive affect fully mediates the relationship between participation in organizational social activities and (a) knowledge sharing and (b) knowledge hiding, and partially mediates the relationship between participation in organizational social activities, and (c) knowledge manipulating. Most interestingly, we unexpectedly found a positive direct effect of participation in organizational social activities on knowledge manipulation, even though the indirect effect via positive affect was negative. The results also indicate that, for individuals with high intrinsic motivation for social activities, there is a significant indirect effect of participation in organizational social activities on all three knowledge management behaviors.

Browse

Recent Submissions