Please join us for Casey Oliver's MA Thesis Defense on August 18, 2-4pm

Student: Casey Oliver
Committee:
Supervisor: Dr. Dwight Mazmanian
Second Reader: Dr. Ron Davis
External Examiner: Dr. Aislin Mushquash
GSC Rep: Dr. Gordon Hayman

Title: Technology-facilitated sexual harassment: Scale development and the role of self-objectification in psychological functioning

Join Zoom Meeting
https://lakeheadu.zoom.us/j/97784842060?pwd=NFJDMVp2bUhQTGRiUG9QcGhOemhE...

Meeting ID: 977 8484 2060
Passcode: Please Email Admin.psych@lakeheadu.ca for the password

A COMPUTER-AIDED DIAGNOSTIC (CAD) SYSTEM FOR EARLY ASSESSMENT OF RENAL TRANSPLANTS

This presentation introduces a deep-learning based computer-aided diagnostic (CAD) system for the early detection of renal transplant rejection. The system is based on the fusion of both imaging markers and clinical biomarkers. The imaging markers are derived from diffusion-weighted magnetic resonance imaging (DW-MRI) while the clinical biomarkers used are : creatinine clearance (CrCl) and serum plasma creatinine (SPCr).

To extract these image-markers, apparent diffusion coefficients (ADCs) are estimated from the segmented DW-MRIs and cumulative distribution functions (CDFs) of the ADCs are constructed at different b-values (i.e. gradient field strengths and duration). Finally, these markers (i.e. CDFs) are integrated with the clinical biomarkers ( CrCl and SPCr) to assess transplant status using deep learning classification approach.

The system showed high diagnostic accuracy to distinguish nonrejection (NR) from dysfunctional (DF) transplants. The results hold promise of the proposed CAD system as a reliable, inexpensive, and non-invasive diagnostic tool.

Zoom link https://lakeheadu.zoom.us/j/93172465169?pwd=M0psbks3L1BLNkRhY01pSG9ucktD...
Meeting ID: 931 7246 5169
Contact Brenda Magajna at phd.ses@lakeheadu.ca for the password

EarthCare Thunder Bay is teaming up with EcoSuperior for a Litter Cleanup Day in the parkland/shoreline at Marina Park on Sleeping Giant Parkway.

The clean-up will take place from 9 am to 12 noon on Sunday, Aug. 15 and be headquartered near the Marina Office. PPE and collection bags will be provided to participants.  

Researchers estimate that roughly 10 million kilograms of plastics enter the Great Lakes every year, polluting the lakes and their surrounding watersheds. Research on plastic pollution pathways and long-term environmental impacts is evolving rapidly, and microplastics pose a great danger.

"Many of EcoSuperior's community clean-ups have shifted to a citizen science focus where we ask residents about the litter they find, to learn about plastic and other litter issues in our community,” said Melissa Davidson, Program Coordinator at EcoSuperior. “​We are very excited about the SeaBin that was placed in Thunder Bay’s harbour last year, as it’s another valuable tool for collecting data about plastics entering Lake Superior.”
Information will be available at these displays:

• City of Thunder Bay – EarthCare – learn about the SeaBin!
• EcoSuperior – Great Canadian Shoreline Cleanup
• Lakehead University – Great Lakes Plastic Cleanup
• City of Thunder Bay – Solid Waste and Recycling
• City of Thunder Bay – North Core Streetscapes

Participants are asked to exercise caution when cleaning up along the water’s edge, and to observe COVID-19 safety protocols.

Nico Alamsyah

Title: "Nitrogen and Carbon Stable Isotope Analysis of Holocene Pigs from Liang Bua (Flores, Indonesia)"

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https://lakeheadu.zoom.us/j/97866026102?pwd=MEFtQ0d3QTVXWHdrU1lpZWE1Z3Nx...

Meeting ID: 978 6602 6102
Passcode: 471627

Dr. Khalil Abuosba, a candidate for the Orillia LTA position in the Department of Computer Science, will present a research seminar.

Title: Utilization of Machine Learning Algorithms in Securing Endpoints of Communication: Ensemble Trust Management Methods

Abstract: Operational computing environment is viewed as a finite state machine that may be specified based on the operational requirements. Reduction of exposure within an operational computing environment leads to reduction of operational risk; hence, more- reliable and survivable computing environments would be achieved.

Computational models have been transformed into new concepts that have distributed nature; whether it is web-based services or IoT solutions; securing points of communications is one of the most challenging requirements of deployment. In this seminar we focus on distributed systems trust management methodologies that are efficient and reliable. Traditional security methods are strictly based on implement security controls and enforce security policies that would satisfy the security requirements for the purpose of resolving known threats that might compromise the endpoint of communication.

This approach lacks protection against anomalous threats. A risk management approach to resolve anomaly is trust management. In this research, We explore deployment of rational agents that gather information and learn from the precepts they it receive from the environment, whether partially observable or fully observable.

We also map agent characteristics to the environment; IoT solutions mostly are deterministic in nature; however, web transactions are nondeterministic or stochastic in nature. Security trust management problems are resolved by satisfying constraints. Another dimension that we address is resolving issues of uncertainty. Finally, we will be addressing the learning algorithms that would be suitable for trust management including decision trees, ensemble methods, and reinforcement learning. We also highlight on neural networks as an application for decision making. Formal methods as well as complexity issues are addressed as well.

Zoom link

https://lakeheadu.zoom.us/j/93172465169?pwd=M0psbks3L1BLNkRhY01pSG9ucktD... Meeting ID: 931 7246 5169 Passcode: 6448

Dr. Xing Tan, a candidate for the Orillia LTA position in the Department of Computer Science will present a seminar.

Title: Complexity Analysis of Restricted Pickup-and-Delivery Problems and A Bayesian Network Model for Document Ranking

Abstract: The presentation introduces our recent research progress, and it contains two main parts. In part I, we perform complexity-theoretic and algorithmic analysis on computationally boundary cases of pickup-and-delivery problems and vehicle routing problems, that is, problems whose tasks are subject to precedence constraints or time-window constraints (PDPC, PDTW); and problems whose vehicles are subject to fuel-tank capacity constraints (GreenPD). We have identified several, either strongly or weakly, NP-hard problems, and additionally other ones that are polynomial-time solvable. In part II, we demonstrate how one can address the classical document ranking problem in information retrieval, using a straightforward Bayesian network model. Effectiveness of the approach is empirically verified.

Zoom link https://lakeheadu.zoom.us/j/94650647205?pwd=VDUvdmFkOThGN3poVFhTK1Nycno5... Meeting ID: 946 5064 7205 Passcode: 8297

Please join us for Vamika Mann's MA Thesis Proposal Defense on Wednesday, August 18, 2021 at 10am

Student: Vamika Mann
Title: Childhood Adversity and Alcohol Use Problems in Emerging Adults: Investigating the Role of Stress and Coping Strategies
Supervisor: Dr. Aislin Mushquash
Committee member: Dr. Alex Drawson
GSC: Dr. Rupert Klein

Admin Psychology is inviting you to a scheduled Zoom meeting.

https://lakeheadu.zoom.us/j/97975243119?pwd=ODJNaFRid0tJNUd1MU1Cc3EzMFB5...

Meeting ID: 979 7524 3119
Passcode: Please email Admin.psych@lakeheadu.ca for the passcode.

The Office of Graduate Studies will offer a mandatory online workshop for all first year Graduate Assistants. Those of you in your second year are more than welcome to join the session as a refresher. The Zoom invite will be sent via email to all graduate students.

Lakehead University’s Office of Indigenous Initiatives is hosting the Legacy of Hope Waniskahtan Exhibit, designed to create greater awareness about the high rates of Missing and Murdered Indigenous Women and Girls (MMIWG) and the 2SLGBTQQIA+ community.

The goal of the exhibit, which will be at the Thunder Bay Intercity Shopping Centre from Wednesday, Aug. 4 to Friday, Aug. 13, is to commemorate Missing and Murdered Indigenous Women and Girls (MMIWG), and hopefully prevent future violence.

Join us for the opening ceremony on Wednesday, Aug. 4 at 10 am at the Intercity Shopping Centre. Please enter the mall near the Maurice’s clothing store, where Moxie’s Grill and Bar used to be.

For more about the exhibit, visit this page.