Tag Archives: Kirsten Zickfeld

Simon Fraser University (SFU; Vancouver, Canada): Nobel Lectures and Café Scientifique February and March events

I got a February 4, 2022 notice via email that three SFU Science events are planned over the next several weeks.

Nobel Lectures

From the February 4, 2022 SFU Science notice,

Nobel Lectures

Wednesday February 16, 2022, 5:00-7:00 pm [PST] via live stream

Celebrate the 2021 Nobel awardees with us as our faculty members present the awardees’ work as it relates to their own research. Rob Britton from Chemistry, Edgar Young from Molecular Biology and Biochemistry and Kirsten Zickfeld from Geography [likely acting as the host/interviewer] will present at this year’s event.

Register here.

I found some information about the SFU presenters and the work being recognized on the SFU Nobel Prize Lectures 2022 eventbrite webpage,

Dr. Robert Britton completed his PhD at UBC with Professors Edward Piers and Raymond Anderson in 2002 studying natural product isolation and synthesis, and was then an NSERC [Natural Sciences and Engineering Research Council of Canada] Postdoctoral Fellow in Cambridge working with Professor Ian Paterson on the synthesis of structurally complex marine natural products. He then joined the Merck Process Chemistry Group in Montreal before beginning his independent research career at Simon Fraser University in 2005. He is currently a Professor at SFU and his research program focuses on reaction discovery, natural product synthesis, medicinal chemistry and radiopharmaceutical chemistry.

Topic: The catalysis of chemical reactions has historically relied on expensive and often low-abundance metals such as gold, palladium and platinum. The discovery that inexpensive and naturally occurring organic molecules can catalyze the same reactions has caused a paradigm shift that has led to more environmentally friendly and economic processes, and served as an enabling tool for scientific discoveries.

Dr. Edgar Young is an Associate Professor in the Department of Molecular Biology & Biochemistry at SFU. His research lab investigates ion channel proteins that switch their structure in response to electrical and chemical signals, producing complex behaviour in the cardiac and nervous systems.

Topic: The 2021 Nobel Prize in Physiology and Medicine was awarded to David Julius and Ardem Patapoutian, for their discovery of key molecules in our nervous system that enable our sense of touch. In this talk, we’ll see how these molecules called ion channels work as electrical switches to convey sensations of pressure, pain, heat and cold — and we’ll explore the prospects for medical benefit.

From Nobel Prize Lectures 2021:

The Nobel Prize in Physics 2021 was awarded “for groundbreaking contributions to our understanding of complex systems” with one half jointly to Syukuro Manabe and Klaus Hasselmann “for the physical modelling of Earth’s climate, quantifying variability and reliably predicting global warming” and the other half to Giorgio Parisi “for the discovery of the interplay of disorder and fluctuations in physical systems from atomic to planetary scales.”

https://www.nobelprize.org/prizes/physics/2021/summary/

The Nobel Prize in Physiology or Medicine 2021 was awarded jointly to David Julius and Ardem Patapoutian “for their discoveries of receptors for temperature and touch.”

https://www.nobelprize.org/prizes/medicine/2021/summary/

The Nobel Prize in Chemistry 2021 was awarded jointly to Benjamin List and David W.C. MacMillan “for the development of asymmetric organocatalysis.”

https://www.nobelprize.org/prizes/chemistry/2021/summary/

SFU Café Scientifique for February and March 2022

From the February 4, 2022 SFU Science notice,

February 17 & March 24 via Zoom

Engage with award-winning researchers from SFU Science for a series of informal discussions connecting research to important issues of interest to the community.

Aging actively: Why choose to move?

Thursday February 17, 2022, 5:00-6:30 pm

Dr. Dawn Mackey, SFU Biomedical Physiology and Kinesiology

Discover the benefits of regular movement for older adults, explore what they want out of physical activity and find out how to create sustainable habits.

Register here.

[from the eventbrite registration page,

Choosing to move can be as simple as moving more, and moving more often – it doesn’t have to mean going to the gym. In this interactive cafe, Dr. Dawn Mackey from SFU’s Biomedical Physiology and Kinesiology Department will explain the benefits of regular physical activity for older adults, as well as some risks of not being active enough. We will also explore what older adults want to get out of physical activity, and ways to make physical activity a sustainable habit.]

From the South Pole to the edge of the universe, and back to the coast of British Columbia

Thursday March 24, 2022, 5:00-6:30 pm

Dr. Matthias Danninger, SFU Physics

Learn about neutrinos and how British Columbia may soon hold a dominant role in neutrino astronomy.

[from the eventbrite registration page:

What is a neutrino? What can we learn from neutrinos about the Universe? Dr. Matthias Danninger from the Department of Physics will discuss answers to these questions and how British Columbia could play a dominant role for neutrino astronomy in the near future.]

Register here.

Hmmm

I have some comments about both SFU Café Scientifique presentations.

With regard to the “Aging actively: Why choose to move?” event in February 2022, it seems to be oriented to students, i.e., future gerontologists and other professionals focused on geriatrics. I can’t help but notice that the presenter (assuming this photo is relatively recent) is not any danger of being described as aged or as a senior,

Dr. Dawn Mackey [downloaded from https://balancefalls.ubc.ca/people/dawn-mackey]

There is nothing inherently wrong with having a youngish professional share work focused on seniors. The problem lies in the fact that presenters for events/talks/conferences/etc. on older folks are almost always young or youngish. I expect that as these professionals age they will find they are no longer participants in the conversation but the objects of the conversation.

As for “From the South Pole to the edge of the universe, and back to the coast of British Columbia,” this claim seems a little optimistic, “… British Columbia may soon hold a dominant role in neutrino astronomy.”

The centre for neutrino and dark matter physics in Canada is the SNOLAB. (There was a talk about the work at the lab in my June 6, 2019 posting Whispering in the Dark: Updates from Underground Science a June 12, 2019 talk in Vancouver …, another mention of the lab in May 12, 2021 posting about a former SNOLAB executive director, TRIUMF [Canada’s national particle accelerator centre] welcomes Nigel Smith as its new Chief Executive Officer (CEO) on May 17, 2021and …, and, most recently, a September 6, 2021 posting about an art/science exhibit where SNOLAB was a partner, ‘Drift: Art and Dark Matter’ at Vancouver’s … .)

British Columbia will soon be dominant? There was this in 2015 (from the SNOLAB’s Awards and Recognition webpage),

The 2015 Nobel Prize in Physics
2015-10-06
Arthur B. McDonald was co-awarded the 2015 Nobel Prize in Physics with Takaaki Kajita for the contributions of the Sudbury Neutrino Observatory Collaboration and Super-Kamiokande Collaboration for the discovery of neutrino oscillations, which shows that neutrinos have mass. The discovery changed our understanding of the innermost workings of matter and proves crucial to our view of the universe.

While I have doubts about the stated goal of being dominant soon, I look forward to being proved wrong. If that happens.

Learn to love spiders and their silk as they may help you beat global warming

Most of the research I’ve seen on spider silk has focused on its strength not its thermal conductivity. From the March 5, 2012 news item on Nanowerk,

Xinwei Wang had a hunch that spider webs were worth a much closer look. So he ordered eight spiders – Nephila clavipes, golden silk orbweavers – and put them to work eating crickets and spinning webs in the cages he set up in an Iowa State University greenhouse.

Wang, an associate professor of mechanical engineering at Iowa State, studies thermal conductivity, the ability of materials to conduct heat. He’s been looking for organic materials that can effectively transfer heat. It’s something diamonds, copper and aluminum are very good at; most materials from living things aren’t very good at all. …

What Wang and his research team found was that spider silks – particularly the draglines that anchor webs in place – conduct heat better than most materials, including very good conductors such as silicon, aluminum and pure iron. Spider silk also conducts heat 1,000 times better than woven silkworm silk and 800 times better than other organic tissues.

The March 5, 2012 news release from Iowa State University provides this detail,

The paper [about the discovery,  “New Secrets of Spider Silk: Exceptionally High Thermal Conductivity and its Abnormal Change under Stretching” – has just been published online by the journal Advanced Materials] reports that using laboratory techniques developed by Wang – “this takes time and patience” – spider silk conducts heat at the rate of 416 watts per meter Kelvin. Copper measures 401. And skin tissues measure .6.

“This is very surprising because spider silk is organic material,” Wang said. “For organic material, this is the highest ever. There are only a few materials higher – silver and diamond.”

Even more surprising, he said, is when spider silk is stretched, thermal conductivity also goes up. Wang said stretching spider silk to its 20 percent limit also increases conductivity by 20 percent. Most materials lose thermal conductivity when they’re stretched.

That discovery “opens a door for soft materials to be another option for thermal conductivity tuning,” Wang wrote in the paper.

And that could lead to spider silk helping to create flexible, heat-dissipating parts for electronics, better clothes for hot weather, bandages that don’t trap heat and many other everyday applications.

Here’s a look at one of Wang’s Golden Silk Orbweavers,

Photo courtesy of the Xinwei Wang research group.

Given that global warming is increasingly described as a certainty, (Simon Fraser University [located in Vancouver, Canada] March 4, 2012 news release,

Warming of 2 degrees inevitable over Canada

Even if zero emissions of greenhouse gases were to be achieved, the world’s temperature would continue to rise by about a quarter of a degree over a decade. That’s a best-case scenario, according to a paper co-written by a Simon Fraser University researcher.

New climate change research – Climate response to zeroed emissions of greenhouse gases and aerosols — published in Nature’s online journal, urges the public, governments and industries to wake up to a harsh new reality.

“Let’s be honest, it’s totally unrealistic to believe that we can stop all emissions now,” says Kirsten Zickfeld, an assistant professor of geography at SFU. “Even with aggressive greenhouse gas mitigation, it will be a challenge to keep the projected global rise in temperature under 2 degrees Celsius,” emphasizes Zickfeld.

The geographer wrote the paper with Damon Matthews, a University of Concordia associate professor at the Department of Geography, Planning and Environment.

This discovery about spider silk and its possible applications is very welcome.