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• ��ݮ��Ƶ observes the National Day for Truth and Reconciliation
• Indigenous Initiatives gets a new (digital) home
• In-person campus tours resuming for future undergraduate students
• Q and A with the experts: Why any mask is better than no mask
• Thursday's notes

��ݮ��Ƶ observes the National Day for Truth and Reconciliation

A message from Human Rights, Equity and Inclusion (HREI).

September 30��is the��National Day for Truth and Reconciliation, a day that��honours��the lost children and survivors of the Indian Residential School System, as well as their families and communities. The National Day for Truth and Reconciliation also��provides��an opportunity for all Canadians to learn about and reflect on the legacy of residential schools.��

The National Day for Truth and Reconciliation is a direct response to the Truth and Reconciliation Commission's (TRC's) Call to Action 80, which called for a statutory holiday of public commemoration. This holiday was created to ensure public commemoration of the history and legacy of residential schools��remains��a vital��component��of the reconciliation process.��

The National Day for Truth and Reconciliation notably coincides with Orange Shirt Day, a day when we honour Indigenous children who were sent away to residential schools in Canada. This day relates to the experience of Phyllis Webstad, a Northern Secwpemc (Shuswap) from the Stswecem'c��Xgat'tem First Nation (Canoe Creek Indian Band).

On her first day at St. Joseph's Mission Residential School, Phyllis��Webstad��wore a brand-new orange shirt that her granny had bought her. When she got to the school, she was stripped of her clothes and had them taken away from her, including the orange shirt. Phyllis never wore it again.��"�ճ����colour��orange has always reminded me of that and how my feelings didn't matter, how no one cared, and how I felt like I was worth nothing," says Webstad. "All of us little children were��crying��and no one cared."

Phyllis's orange shirt is now a symbol of the stripping away of culture, freedom, and self-esteem experienced by Indigenous children over generations. On September 30, all��Canadians are encouraged to:

• Read:��Start by reading��the����(�ʶٹ�).
• Learn:��Browse the��Indigenous Initiatives Office��resource pagefor more ways to learn.��
• Reflect:��How can you advance��the TRC’s��Calls to Action in your own spaces?��
• Share:��Share what you’ve learned with others and continue learning about Truth and Reconciliation in Canada.��

Indigenous Initiatives gets a new (digital) home

A message from the Indigenous Initiatives Office.

The Indigenous Initiatives office is launching��a new website��today. The site has updated resources, along with a new look and feel, taking full advantage of the new the ��ݮ��Ƶ Content Management System (WCMS) launched this year. This comes on the heels of the launch of the new Indigenous Connections Newsletter, released last week. Campus community members can��

The Indigenous Initiatives office encourages individuals to suggest additional resources and stories for the new site by emailingindigenousinitiatives@uwaterloo.ca.

In-person campus tours resuming for future undergraduate students

A message from the Visitors��Centre.

The Visitors Centre is excited to be resuming in-person general campus tours for future undergraduate students. Tours begin October 4 and are available only through advanced booking due to limited capacities and enhanced safety protocols.��

We are also looking forward to eventually resuming our full suite of tours including school group tours and faculty/college/school tours in 2022, as public health restrictions allow.

Our 90-minute campus tours are offered 3 times every weekday. While the tour is primarily outdoors, you may notice tour groups walking through the following buildings:

• South Campus Hall (SCH)
• Tatham Centre (TC)
• Centre for Environmental and Information Technology (EIT)
• Quantum Nano Centre (QNC)
• ��ݮ��Ƶ Centre (SLC)
• Village 1 general complex (V1) – no residence rooms will be shown
• St. Jerome’s University atrium (SJU)

In addition to resuming campus tours, the Visitors Centre will continue its ongoing work connecting with future students through virtual tours, calls, emails, online chats, and fulfilling brochure requests.

Q and A with the experts: Why any mask is better than no mask

As people return to offices and students to classrooms, masks are recommended indoors to limit the spread of COVID-19. Though��N95 and KN95��masks offer the highest degree of protection, any mask is better than no mask.��, a professor in Mechanical and Mechatronics Engineering at the University of ��ݮ��Ƶ and the principal investigator in the����explains how best to limit the spread of COVID-19 indoors.

As people start going back out to work, how important is it to continue wearing masks indoors? And do I need to use N95 and K95 masks?

It has been����that the SARS-CoV-2 virus that causes COVID-19 is transmitted by droplets produced during various expiratory activities, such as breathing, speaking, coughing, or sneezing. Consequently, any means of limiting the spread of droplets is of primary importance for controlling the spread of COVID-19. All types of masks are quite effective at capturing larger respiratory droplets. The masks also capture a portion of virus-laden aerosols exhaled by an infected person and inhaled by healthy occupants. This makes masking an essential component of COVID-19 mitigation indoors.��

Although our����shows that the efficacy of capturing aerosols varies significantly based on mask type—with respirator masks such as N95 and K95 offering a significantly higher degree of protection compared to common cloth and disposable blue masks—all masks offer an added degree of protection.

If workers don’t have access to��N95 and KN95��masks, what are the best practices to make cloth and disposable blue masks more effective?

The effectiveness of any mask depends on both the filtration capability of its material and mask fit to the face. The former aspect has been reflected in a revision of����for non-medical masks, which now recommend the use of three-layer masks that incorporate a non-woven filter material. At the same time, since any mask only filters airflow that passes through the mask material, it is critical to ensure that the mask covers both your nose and mouth and forms a tight fit around your face. A poor mask fit can significantly reduce the effectiveness of even medical-grade masks. The appropriate mask donning procedure should ensure that your mask covers the nose, mouth, and chin, the elastic straps are adjusted to produce a tight fit around your face, and the nose-bridge wire is shaped for a tight fit. These steps should minimize any gaps between the mask and the face. A well-fitting mask should ensure minimal airflow around the nose bridge and cheeks, and the mask surface should visibly deform during normal breathing.

With schools resuming in-person classes, how best can children be protected who cannot wear masks or might not wear them correctly?

Social distancing, cohorting, masking, and ventilation are all important COVID-19 mitigation strategies, and they are most effective when combined. However, some measures, such as social distancing and appropriate masking, may be difficult to maintain or implement in various school settings, particularly with younger children. This places an added emphasis on the remaining viable measures. By replacing contaminated air with clean air or efficiently filtering out virus-laden aerosols, various ventilation methods can reduce the risk of virus transmission. For instance,����showed that mechanical ventilation or high-efficiency particulate air (HEPA) purification can be more effective than most efficient masks in controlling aerosol build-up indoors. Thus, maximizing the existing ventilation capacity and supplementing it with air purification during occupancy periods reduces transmission risk and can be used to offset the negative impact of incomplete masking. Added benefits can be gained from limiting class occupancy during breaks and further enhancing ventilation through opening windows and doors when possible.

Serhiy Yarusevych��is a Professor in Mechanical and Mechatronics Engineering and is the principal investigator in the��Fluid Mechanics Research Lab. His research interests lie in the general area of fluid dynamics and aerodynamics.

Thursday's notes

2025 ��ݮ��Ƶ is reporting that all campus Tim Hortons location will be supporting for Orange Shirt Day and the National Day of Truth and Reconciliation.

From��September 30 to October 6, 100 per cent��of the proceeds for the Orange Sprinkle Donut will go directly to the Orange Shirt Society��and the Indian Residential School Survivors Society.

You can call ahead for larger orders:

• SLC: ext. 37829
• DC: ext. 39588
• SCH: ext. 36081

For more information,��contact UW 2025 ��ݮ��Ƶ.

On Saturday, October 2,��The Honourable Graydon Nicholas, a member of the Order of Canada, and current Endowed Chair of Native Studies at St. Thomas University, is the guest speaker at��, offering his own reflections on the past and the route to reconciliation for Catholics.��

�ճ����MATES scavenger hunt event, which started on��September 26, allows students new to campus to learn about different services/locations of campus and is scheduled to end on October 9.��Students can participate both in-person and online.��

The scavenger hunt is aimed at incoming students who will benefit from learning about various services and locations around campus. Students can get involved either in-person or online. There are tasks students have to complete in order to��win prizes like a $25 Amazon Gift Card and assorted MATES swag, which are divided into an in-person version and an online-version.��If they choose to do in-person, they can download the GooseChase app��to take and submit pictures of the scavenger��hunt hints they will find around campus. No hint ever requires a student to enter inside of a building for safety. If they choose to do the hunt online, they will be completing their tasks online via their personal devices, like PC or phone.��