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Researchers discover tiny, 500-million-year-old predecessor to scorpions and spiders

Christopher.Sorensen — Thu, 12 Sep 2019 15:34:23 +0000

Researchers discover tiny, 500-million-year-old predecessor to scorpions and spiders

Christopher.Sorensen Thu, 09/12/2019 - 11:34

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Mollisonia plenovenatrix preserved in dorsal view, showing the large eyes, walking legs and the small chelicerae at the front (photo by Jean-Bernard Caron)

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Paleontologists working on the world-renowned Burgess Shale have revealed a new species named Mollisonia plenovenatrix, which they describe as the oldest member of a group of animals called chelicerates. The discovery places the origin of this vast group of animals – over 115,000 species including horseshoe crabs, scorpions and spiders – to a time more than 500 million years ago, near the beginning of the Cambrian Period.

The findings were published this week in Nature.

Mollisonia plenovenatrix would have been a fierce predator – for its size. As big as a thumb, the creature boasted a pair of large egg-shaped eyes and a “multi-tool head” with long walking legs, as well as numerous pairs of limbs that could altogether sense, grasp, crush and chew.

But, most importantly, the new species also had a pair of tiny pincers in front of its mouth, called chelicerae. These appendages give rise to the name chelicerates and are used to kill, hold and, sometimes, cut their prey.

Reconstruction of Mollisonia plenovenatrix (image courtesy of Joanna Liang, Royal Ontario Museum)

“Before this discovery, we couldn’t pinpoint the chelicerae in other Cambrian fossils, although some of them clearly have chelicerate-like characteristics,” says Cédric Aria, lead author of the Nature study and a recent graduate of the PhD program in the �ؿ�ζSM’s department of ecology and evolutionary biology in the Faculty of Arts & Science.

“This key feature, this ‘coat of arms’ of the chelicerates, was still missing.”

Other features of this fossil, including back limbs likened to gills, further suggest that Mollisonia’s body already resembled those of modern species and was not some primitive version of a chelicerate.

“Chelicerates have what we call either book gills or book lungs,” explains Aria, a member of the Royal Ontario Museum’s Burgess Shale expeditions since 2012 and currently a post-doctoral fellow at the Nanjing Institute of Geology and Palaeontology in China.

“They are respiratory organs made of many collated thin sheets, like a book. This greatly increases surface area and therefore gas exchange efficiency. Mollisonia had appendages made up with the equivalent of only three of these sheets, which probably evolved from simpler limbs.”

U of T alumnus Cédric Aria at the main Marble Canyon quarry site in Canada’s Kootenay National Park during the summer of 2014 (photo by Jean-Bernard Caron)

Aria and co-author Jean-Bernard Caron, the curator of invertebrate palaeontology at the ROM and an associate professor at U of T’s department of Earth sciences, believe that Mollisonia hunted close to the sea floor – a type of behaviour called benthic predation – thanks to its well-developed walking legs. Because Mollisonia is so modern-looking, chelicerates seem therefore to have prospered quickly, filling in an ecological niche that was otherwise left poorly attended by other arthropods at that time. The authors conclude that the origin of the chelicerates must lie even earlier within the Cambrian, when the heart of the “explosion” really took place.

“Evidence is converging towards picturing the Cambrian explosion as even swifter than what we thought,” says Aria.

“Finding a fossil site like the Burgess Shale at the very beginning of the Cambrian would be like looking into the eye of the cyclone.”

Deni Kasa explores the religious origins of liberalism at Tel Aviv University

rasbachn — Thu, 19 Oct 2017 04:00:00 +0000

Deni Kasa explores the religious origins of liberalism at Tel Aviv University

rasbachn Thu, 10/19/2017 - 00:00

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Deni Kasa on his research at Tel Aviv University: "The significance of this topic is that it helps us see religion and secular life as categories with shifting boundaries, especially in the early modern period (photo by Wajiha Rasul)

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Deni Kasa remembers being apprehensive about coming to �ؿ�ζSM as an MA student in the department of English. "I had expected, based on the prestige of the school, that U of T would be a somewhat cold place where I would need to work very hard to get any attention."

But, he says, "I found U of T English to be a department that not only went toe-to-toe with the top universities in the world but that also preserved an intimate, warm, and genuinely supportive community." In fact, when it came time to do his PhD, "there was never any question in my mind about where to apply."

Kasa successfully defended his PhD dissertation – “Graceful Symmetry: The Politics of Grace in Shakespeare, Spenser, and Milton" – last month. His supervisor, Professor Paul Stevens, chair of the department of English in the Faculty of Arts & Science, describes Kasa as “a natural intellectual, a careful reader and imaginative thinker, quick on his feet and always willing to learn.”

Kasa, who hails from Albania, is part of a new generation of thinkers transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

In the latest instalment of a series from U of T News, we turn the spotlight on Kasa. Below, he talks about his postdoctoral fellowship at Tel Aviv University, his research on the anti-Trinitarian origins of liberalism and the significance of his work.

Why did you choose U of T?

I knew early on that I wanted my dissertation to include a significant component on John Milton, and U of T has been a leader in Milton studies for generations. The most important factor, however, was the friendliness of the department of English, which I first experienced during my MA. I had expected, based on the prestige of the school, that U of T would be a somewhat cold place where I would need to work very hard to get any attention. This expectation was totally wrong. I found U of T English to be a department that not only went toe-to-toe with the top universities in the world but that also preserved an intimate, warm, and genuinely supportive community. I couldn’t be happier that I was here, and there was never any question in my mind about where to apply for my doctoral studies.

How did taking English at U of T help you in your research?

The faculty is the key advantage. U of T boasts more specialists in early modern studies alone than most other English departments have in all periods combined. The faculty members are not only brilliant, but also very generous with their time. I found it very easy to find help on everything from research problems and methodologies to job applications and teaching strategies. My dissertation came directly out of these engaging discussions with various faculty members, and my successes in the postdoc applications and job market were largely due to the extremely generous feedback I received from the faculty.

Moreover, I couldn’t have done my work without U of T’s excellent resources for literary studies. The most important asset is the world-class library system, which has never left me unable to access the books I needed to do my research. My colleagues who work with rare books have benefited especially from the Thomas Fisher Rare Book Library; in my case, Robarts had all I needed and more. Finally, U of T is home to scholarly centres such as the Centre for Renaissance and Reformation Studies (CRRS), which was a second home to me throughout my doctoral studies. I would recommend the CRRS and similar centres to all PhD students, because they are an excellent place to meet visiting scholars, speakers, and colleagues. The yearly Canada Milton seminar, which is organized through the CRRS, was especially valuable for my work because it gave me the chance to meet the leading researchers, not only in Milton studies but in 17^th century studies generally.

Can you describe your postdoctoral work at the Tel Aviv University?

I will be an Azrieli international postdoctoral fellow at Tel Aviv University, under the supervision of Prof. Noam Reisner. The project will address the relationship between anti-Trinitarian theology and early liberalism in the works of Hugo Grotius, John Milton, and John Locke. The term “anti-Trinitarianism” describes a collection of Christian heresies which denied the divinity of Jesus. Instead of seeing him as a divine son of God, they saw him as a creature – either a human prophet or some more privileged person, but in all cases a creature. In the 16^th and 17^thcenturies, anti-Trinitarians began to attract a variety of European intellectuals, including Grotius, Milton, and Locke, among many others. These writers went on to influence several key concepts, such as religious tolerance and freedom of speech, which later came to be seen as the hallmarks of liberalism. I will explore the relationship between these writers’ anti-Trinitarian sympathies and the political positions for which they are better known today.

What attracted your interest towards anti-Trinitarian origins of liberalism?

I was attracted to this topic initially because I did some work on John Milton’s anti-Trinitarianism for my dissertation. As I researched the subject further, I learned that Grotius and Locke were also attracted to this religious position, and that all three of these writers are thought to have drawn upon anti-Trinitarian arguments to espouse religious tolerance and what might be described as a humanist understanding of Christianity. Intriguingly, historians have suggested that anti-Trinitarianism was in part a result of interfaith exchanges between various heretical Christians, as well as Jewish and Muslim theology. However, I found that much of the best criticism on this field is being done in history rather than literature departments. As a result, the topic was a natural fit for me because my research explores how literature helps to mobilize religious rhetoric for political ends. In other words, I want to explore not only what these writers argue, but also the literary or rhetorical form that they give to their arguments. Rhetoric and literary form bridge the religious context with the political positions adopted by these writers.

If your research proves that interfaith dialogue came first before liberalism, how significant will it be for academic society?

The significance of this topic is that it helps us see religion and secular life as categories with shifting boundaries, especially in the early modern period. Today, we sometimes think of religious tolerance as a byproduct of secular liberalism. However, if anti-Trinitarianism really did contribute to early forms of liberalism, perhaps the boundary between the religious and the secular was more porous in the past than it is today. Perhaps we need to revisit the intellectual exchanges within and between the Abrahamic religions in order to fully defamiliarize the early modern period, and through this defamiliarization come to a better understanding of our own historical moment.

Ultimately, I see this project as an effort to ask the kinds of questions that might estrange both past and the present.

Johanna Thoma tackles decision theory, from how we live our lives to how public policy gets decided

rasbachn — Thu, 07 Sep 2017 04:00:00 +0000

Johanna Thoma tackles decision theory, from how we live our lives to how public policy gets decided

rasbachn Thu, 09/07/2017 - 00:00

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Thoma won the Governor General's Gold Medal for her "groundbreaking" dissertation on decision theory (photo courtesy of Governor General's office)

Jovana Jankovic

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Thoma now teaches at the London School of Economics

"Should I resist this temptation when it really seems best to me right now to give in? Should I stop procrastinating right now even though I know that another minute on this blog won’t make me miss my deadline or make my paper noticeably worse?"

These are the kind of perplexing yet universally familiar questions that U of T alumna Johanna Thoma pores over in her work in a branch of philosophy known as decision theory. The practical applications of Thoma’s work are wide-ranging, from electoral politics (who to vote for) to consumer choice and marketing (what to buy) to psychology, sociology, ethics, and beyond (how we should live our lives).

Upon completing her PhD at U of T’s department of philosophy in 2017, Thoma won the Governor General’s Gold Medal for her "groundbreaking" dissertation on decision theory. She has since moved to the United Kingdom to join the London School of Economics' department of philosophy, logic and scientific method as an assistant professor.

Thoma is part of a new generation of thinkers transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

In the 12th instalment of a series from U of T News, we turn the spotlight on Thoma. Below, she talks about her time at U of T, why she finds decision theory so fascinating, and how it affects problems both small (procrastination) and large (how policy-makers tackle climate change).

You came to Toronto after studying in Oxford and the Netherlands. What was it that initially drew you here for your doctoral studies?

My undergraduate studies and my master's were interdisciplinary (philosophy and economics). That was fascinating, but it also made my philosophy education a little bit narrow – I had mostly studied ethics, political philosophy and philosophy of science. While those were the areas I thought I probably wanted to work in, I also thought I should get some more general philosophy training if I wanted to be an academic philosopher. That’s why I applied to North American PhD programs. Toronto stood out because it looked excellent across the board. At least it had people I had read and whose work I liked in all areas of philosophy I knew anything about. So it seemed great for the undecided like me. There wasn’t anybody in particular I knew I wanted to work with.

In the end it’s a very personal decision where you want to study, work and spend five years of your life. When I visited the department, my first impression was that the philosophical discussions happening there were inspiring, the faculty were extremely supportive and personable, and that the graduate community would make me feel at home. And that impression proved right: I had a wonderful time in Toronto, both personally and academically. I certainly couldn’t have imagined a better PhD committee than the one I ended up with.

One other personal factor that played into my decision was that I actually have some family in and around Toronto, since my Dutch grandmother’s brother emigrated to Canada after the Second World War. Graduate school can be quite tough, and it was nice to have family to turn to, and to cook me my first Thanksgiving dinner.

What was your favourite thing about the city of Toronto, outside of the university?

Oh, so many things! Raccoons, walking in the ravine, cycling in the dead of winter dressed like I am going on a North Pole expedition, the coffee houses, the art and design, beer in pitchers, breakfast all day, 24-hour bagel places, 7-days-a-week karaoke places, funky-looking libraries, and more free stuff on my birthday than any other city I ever celebrated it in. Also, you can get into a car and drive to places more remote than anywhere in central Europe within just a few hours.

Your work in decision theory seems very applicable to everyone, anywhere, in many situations. What initially got you interested in this field? What do you think are some of the most interesting practical applications of your work? Do you connect your work to your personal life when you think about making decisions for yourself?

As an undergraduate, studying philosophy alongside economics got me puzzled about the conceptual underpinnings of the theory of rational decision-making at the basis of economics, namely expected utility theory. I was very excited when I found out that there is a branch of philosophy that critically explores this and other theories of practical rationality. What kept me interested in this area of philosophy, once I delved into it, is that it has this rare combination of being at once highly relevant to ordinary life while at the same time raising the kinds of seemingly irresolvable philosophical puzzles that hurt your brain and keep you up at night – which is the drug that got most of us into philosophy in the first place.

They are questions like these: Should I resist this temptation when it really seems best to me right now to give in? Should I stop procrastinating right now even though I know that another minute on this blog won’t make me miss my deadline or make my paper noticeably worse? How should I choose when, whichever option I consider, another available option seems better? Should I wear my bicycle helmet today when the risk of accident today seems worth taking, but the risk I would be running over the year by never wearing my helmet seems recklessly high?

It’s easy to connect these questions to my own life. While I am resigned to the fact that I am hopelessly irrational myself, at least I came to the tentative conclusion that rationality is more permissive than I learned as an undergraduate in economics.

The examples I just gave are of course quite mundane, but they have real relevance on a policy level as well. For instance, you only need to look at climate policy to see that policy-makers, too, are prone to procrastinating. One problem I am particularly interested in is that what it seems best to do often crucially depends on whether you look at one choice in isolation, or consider it as part of a package of choices, or a course of action over time. This observation is especially relevant for policy-makers, who could potentially adopt very long time horizons when deciding on policies, but often adopt short ones, or who could potentially consider each policy as part of a larger package of policies, but often consider them piecemeal.

If evaluating each policy in isolation rather than cumulatively makes a big difference to what policies are chosen, is that problematic? If yes, how should we deal with this problem? While I haven’t written specifically on such policy applications yet, this is one of the directions in which I want to take my research. The policy context certainly also raises some distinct challenges compared to the personal context.

You were offered the position of assistant professor at LSE, ranked the No. 7 philosophy department in the world by QS, before you finished your PhD. What has it been like so far in your first year at LSE? Were there any experiences at Toronto that you found particularly useful in transitioning to LSE?

Well, having to finish up my PhD thesis very quickly after I was offered the job was certainly very good preparation for having to write my first lectures very quickly once I started it! I was extremely lucky, of course, not only to get a secure job so soon, but also one that allows me to remain in as active and inspiring an academic community as I was in during my graduate studies. There is exciting research happening all around me, and there are lots of people to talk to about my own work.

LSE is probably the place in the world with the biggest concentration of people working on very similar things as I am. The first year of teaching on a faculty teaching load while juggling administrative duties, research, and adjusting to a new city was tough, of course. But Toronto prepared me well for it in several ways. Most importantly, coming from such a supportive environment helped me have the strength to deal with it. Another thing in particular that was useful was that there are many inspiring female faculty at Toronto who were great role models. Lecturing in a male-dominated field as a young woman, it can be tough to retain authority while maintaining a positive learning environment. U of T provided me with great examples of how to do it.

Lastly, an interesting parallel between U of T and the LSE is that, in terms of their student bodies, they are two of the most ethnically and culturally diverse universities in the world. And so TA-ing at U of T prepared me well for teaching at LSE in that regard. You can’t assume as much by way of common background beliefs, but that is actually a really good thing for philosophical discussion. You start from a blank slate, and you get more interesting perspectives along the way.

Glenn Tiller helps Texas students discover classic American philosophy and the joy of studying the humanities

geoff.vendeville — Thu, 31 Aug 2017 22:44:28 +0000

Glenn Tiller helps Texas students discover classic American philosophy and the joy of studying the humanities

geoff.vendeville Thu, 08/31/2017 - 18:44

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Glenn Tiller, who earned his PhD and did a postdoc in philosophy at U of T, now teaches at Texas A&M University-Corpus Christi (photo by Hayford Osei)

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Tiller now teaches philosophy at Texas A&M University-Corpus Christi

In an undergraduate class at another Canadian university, Glenn Tiller was briefly introduced to the philosophy of a relatively obscure Spanish-American thinker named George Santayana.

It was as if the light suddenly came on, he said. After his professor jotted down a description of the philosopher and his work on the blackboard, it got Tiller thinking, “Why didn't we study that? These are good things to say.”

Tiller applied to the �ؿ�ζSM “hell-bent” on focusing on Santayana during his PhD studies, but his supervisor, University Professor Cheryl Misak, encouraged him to broaden his horizons. That decision led him to develop a more general understanding of American philosophy, which serves him well in his current job in the philosophy faculty of Texas A&M University-Corpus Christi.

He is one of a new generation of thinkers transforming research and teaching across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

In the 11th instalment of a new series from U of T News, we turn the spotlight on Tiller. Below, he talks about his time at U of T and the importance of studying the humanities.

Why did you choose U of T for your doctoral studies?

I was interested generally in philosophy but I had this driving passion to look at the philosophy of George Santayana who's a Spanish-American philosopher. He taught at the turn of the last century. He was at Harvard for about 40 years and then lived in Europe for the rest of his life.

He gets lumped in with the classical American philosophers: William James, Charles Peirce, John Dewey.

At the time, Santayana was not a popular guy and a hard sell. His status has been raised a little in the last 20 years. I partly applied to the �ؿ�ζSM because at least somebody was doing American philosophy.

How did your academic interests change?

I came to Toronto hell-bent on studying Santayana. I shopped around for advisors and met one who said, “Oh yes Santayana, I once supervised a dissertation on that. The only time one of my students failed their PhD defence.” That was a bit heart sinking.

So I met Cheryl and she said I'd be happy to work with you but you might want to broaden your horizons a little bit. There are other figures in American philosophy, in particular Charles Peirce.

I ended up doing a dissertation on Peirceand Santayana, who were contemporaries.

How did you become interested in Santayana?

I was taking a course on British empiricism when I went to the University of Manitoba. At the time, they divided 17-18^th century modern philosophy into the Brits and the Continentals.

It was the last day of class... the professor said there's this guy named Santayana. He wrote down 10 things on the board and it got me thinking, “Why didn't we study that? These are good things to say.”

It was one of those moments where the light just started to come on. There are all these problems in philosophy, and I didn't want to wallow or live with them; I wanted to see my way through them. I guess I could say I largely accepted the philosophy of Santayana.

What is his philosophy in a nutshell?

He's most well known as the author of pithy phrases, such as "Those who cannot remember the past are condemned to repeat it," and "Only the dead have seen the end of war."

But really he is a completely naturalistic philosopher. He doesn't believe in supernatural powers, that there's some sort of cosmic force guiding the universe.

He also writes on spirituality, which is rare for someone who's not a theist. He developed a philosophy of naturalistic spirituality. It's a philosophy of life and that's what really attracted me. This is a philosophy that will try to not just organize your thoughts and make you aware of the history of philosophy, but also bring you some reflective equilibrium, some spiritual composure, some practical payoff.

Why is it important to study the humanities?

The humanities are about life and human existence and everything that goes along with that.

“Life can't just be about making a better can opener.”

There's history, psychology, poetry, art and all these things are the fruits of culture and they enrich our thoughts, they enrich our lives.

Apart from all those high-minded laudatory aspects of the humanities, it's good training for the mind. I've seen more and more articles from top tech and entrepreneurs like (American businessman) Mark Cuban saying we need people who can think and be creative.

Philosophy if anything broadens one's horizons. It helps you stretch your concepts and think around and through problems.

And also students like it. Students like to ask philosophical questions like, “What am I and where did I come from?”

Life can't just be about making a better can opener.

How did the postdoc at U of T help you for what came after?

The postdoc was wonderful. It was a carrot to help me to not linger and get my (PhD) degree done. You meet people who are nine or 10 years into their degree and I didn't want to do that.

It gave me the opportunity to design a course in American philosophy and teach a course. It was a wonderful opportunity, both the research and teaching. I still use the basic framework for that class 17 years later.

Quinn Konopacky searches for new planets orbiting distant stars

Romi Levine — Thu, 24 Aug 2017 04:00:00 +0000

Quinn Konopacky searches for new planets orbiting distant stars

Romi Levine Thu, 08/24/2017 - 00:00

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Quinn Konopacky studied exoplanets at U of T's Dunlap Institute for Astronomy & Astrophysics (photo by Erik Jepsen)

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Around the time Quinn Konopacky started high school, astrophysicists were making history with the discovery of planets orbiting stars outside of our solar system – called exoplanets.

“I got really inspired by hearing about that news and thought maybe some day I could actually work on that,” she says.

Driven by her curiosity, Konopacky set her sights on the stars, studying astronomy and astrophysics at University of California, Los Angeles, and eventually making her way to �ؿ�ζSM, where she was a post-doctoral fellow at the Dunlap Institute for Astronomy & Astrophysics in the Faculty of Arts & Science.

At Dunlap, her teenage aspirations became a reality when she played a part in discovering and capturing images of exoplanets.

“It almost surprises me every day (that) I get to wake up and say I actually made it and get to work on this subject I thought about all those years ago,” she says.

Konopacky is part of a new generation of thinkers transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

Konopacky is now an assistant professor at the Center for Astrophysics and Space Sciences at the University of California, San Diego. She spoke with U of T News about her research, the importance of inspiring young astronomers, and the possibility of extraterrestrial life.

What drew you to U of T?

U of T has one of the most vibrant communities of astronomers in the world so they have a huge number of people working in the different institutes and departments. It’s just a huge, vibrant community that makes for a really fantastic research experience as a postdoc because there's so many people you can go and talk to and learn what they're working on and start new collaborations with.

What did you research at Dunlap?

My research focuses on trying to take images directly of extra-solar planets – planets that orbit other stars. At U of T, I worked on projects on a particular directly imaged exoplanetary system called HR 8799. It's a really well-known exoplanet system. I spent a lot of time working on trying to understand through a technique called spectroscopy, where we take the light coming from the planets themselves and break it down into its constituent wavelengths – like if you look through a prism – the fingerprints of different molecules in the atmosphere of the planets. A lot of my work focused on trying to see what kind of molecules were in the atmospheres of some of these planets. What we saw were things like water vapour, carbon monoxide – which was really exciting at the time.

I was also spending time working on a new instrument I'm a collaborator on called the Gemini Planet Imager. It's a special instrument to go on the Gemini South telescope in the Andes Mountains in Chile. I got to go down there and help when they actually put it on the telescope. That was really important while I was in a post-doc because you're a little more flexible, you have some more time, so it was good to be able to do that work at U of T.

What are you working on at UC San Diego?

I'm doing similar research – I'm still working on trying to take pictures of other planets around other stars. I get to do a lot of work on the Gemini Planet Imager survey that's now been going since 2014 and I've been working on trying to get additional information about the atmospheres of these planets – the ones I was working on before and newly discovered planets through direct imaging. I've been working on gathering new data using the Keck telescopes in Hawaii and other projects as well having to do with star and planet information.

What can we learn from these types of discoveries?

I think it's really important to continue to do these types of research that don't necessarily seem obvious in terms of everyday, practical application because it's really inspiring to the public in general. The public likes learning about the universe, they like to hear about and think about the possibility of what other worlds are out there, whether we're alone in the universe. I think that helps get the general public and young kids inspired to want to pursue careers in the sciences, which is something we're always striving for.

Even if we don't necessarily know where we're headed or what the applications of what we're doing will be in the future, a lot of things that turn out to be really important inventions or discoveries, you didn't know about when you first started the research. So keeping up with pure research in astrophysics or in any field will end up having really important applications for the future and society.

As someone who researches planets outside of our solar system, do you think there's life beyond Earth?

The reason we study planets around other stars is we're fundamentally interested in this question of whether we're alone in the universe and the possibility of life on other worlds. In terms of figuring out the number of worlds that might possibly be able to harbour life, we’re really close to having that answer and that's something super exciting because it's something we didn't know only a few years ago.

If we look at the sheer numbers, most scientists would probably agree that the possibility of some form of life existing somewhere else in the universe is very, very high and it's just a question of figuring out how common it is and figuring out how we can detect it. I think in the next few decades or so, we might have the technology to at least look for some of these bio signatures – signatures of life on other worlds – and maybe start to come up with new and creative ways to determine what that life looks like.

If we find life on other planets, do you think we should attempt to communicate with it?

I think it would be fun to communicate with it. There's a lot of interesting, popular works that make it seem like it might be a scary possibility but I would hope that by the time we figure out if there's intelligent life that can actually communicate, that we can say that it would be worth it to do that.

Do you see yourself as a role model for women and girls interested in STEM?

It's a role I'm happy to take on. It's incredibly important that all of us who have been fortunate enough to have made it to this level remember that we can always improve the quality of research and the overall field in general by striving to increase both the number of women and the underrepresented minorities – people of colour – that come into the sciences. I really like the idea of trying to use my position and being a woman that actually made it to try to help achieve those goals.

Cosmologist Laura Newburgh works on a transformative radio astronomy telescope

geoff.vendeville — Thu, 17 Aug 2017 04:00:00 +0000

Cosmologist Laura Newburgh works on a transformative radio astronomy telescope

geoff.vendeville Thu, 08/17/2017 - 00:00

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(photo by Geoff Vendeville)

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The former researcher at the Dunlap Institute for Astronomy & Astrophysics looks to understand the nature of the early universe

Laura Newburgh was inspired by Star Trek to boldly go where few men, or women, have gone before.

In high school, she read The Physics of Star Trek, which explains the science behind the TV series, including the differences between wormholes and black holes. The book stoked her curiosity about space.

In 2013, she took a fellowship at the Dunlap Institute to work on a radio telescope on the West Coast, which is intended to shed light on dark energy – a mysterious cosmic force that makes up 73 per cent of the universe.

She collaborated with U of T Assistant Professor Keith Vanderlinde to help build new radio telescopes that would yield a map of cosmic structure over the largest volume of the universe ever observed. Researchers say the data will help explain why the rate of the universe's expansion is accelerating.

Newburgh is part of a new generation of thinkers transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

Now an assistant professor at Yale University, Newburgh discussed her research and time at U of T in an interview with U of T News.

How did you get into cosmology?

I stumbled into cosmology. I had decided to do physics in general after reading a book called The Physics of Star Trek when I was in high school. Most of the book is debunking warp speed and transporters and things, but there's a whole other last part of the book which is all about black holes, white dwarfs and compact objects and cool, fun things in cosmology.

That inspired me to do a physics degree in undergrad. I did a lot of research as an undergrad in different things: I did some astronomy, condensed matter and particle physics. I really liked being an experimentalist. I liked being in the lab, building instruments. I found out about cosmology at the end of my undergrad, and it united both my interest in big questions about the universe and being able to build instruments to study them.

Were you a big Trekkie?

I was, yeah. Not enough to go to conventions or anything, but I liked Star Trek a lot.

Do you speak Klingon?

No, no, no.

What is it that fascinated you about black holes, white dwarfs and the universe in general?

I remembered seeing the diagrams of warping space time with black holes and that you could use general relativity to predict what would happen, and I think it was just captivating. It's so elegant that you can take these enormous objects that do the strangest things and describe them. That is extremely powerful.

Despite all of the measurements we've made about the universe, we still have a lot of fascinating open questions. We are still left with questions like: What is dark matter? What is dark energy? How did it all begin? Answering them is the most fun job in the world.

What did you specialize in?

My research focus was in cosmic microwave background (CMB) instrumentation. I did that in both my thesis work at Columbia University and my first post-doc at Princeton University. Those instruments are millimetre wave telescopes that are dedicated to the measurement of the CMB radiation – the first light that we see in the universe. The resulting measurements are the workhorses in cosmology and provide not just fascinating details about the early universe but also the basis for all other cosmology measurements we make.

How did you end up at U of T?

The thing that brought me to Canada and U of T was the Canadian Hydrogen Intensity Mapping Experiment.

What we measure with CHIME is the distribution of galaxies out to extremely high red shifts, so very, very far back in time. The result of that is something we can turn into a constraint on dark energy models. The idea is to use a signature we know is there from other surveys to trace the expansion rate of the universe over time, and then use that to better understand the nature of dark energy and what models are relevant.

CHIME is doing this with radio measurements of galaxies. It's a very large radio interferometer built in collaboration with four institutions: U of T, McGill, the University of British Columbia and the Dominion Radio Astrophysical Observatory. It is built in four parabolic cylinders that look a lot like really large half-pipes. The reason that we have built this crazy instrument is that we have extremely high sensitivity to the cosmological signal we're interested in.

What did you think of your time at U of T for the Dunlap fellowship?

The wonderful thing about having the Dunlap fellowship is that it allowed me to be very independent. I had the opportunity to pick my own path and choose what I wanted to work on while I was at U of T.

It allowed me to focus on a part of CHIME no one was actively working on: to help calibrate the instrument better, which is essential to making the sensitive cosmological measurements possible. My fellowship at the Dunlap Institute gave me the resources to put together this separate calibration instrument, which was important for getting a faculty job later. It was a really unique opportunity, and I'm so glad I did it.

And what did you think of the environment at U of T?

I totally loved it. It was a really rich academic environment to learn all of the new things required for working in a completely new field, since I hadn't done radio astronomy or measurements of galaxies before.

What are you working on at Yale?

I'm continuing to work on CHIME to do these calibration measurements, the same sorts of things I was doing when I was at the Dunlap Institute. I also started working on this new facility for CMB observations called the Simons Observatory. We will build two new telescopes in Chile to make better measurements of the CMB, which should allow us to say lots of interesting things about particle physics and the early universe.

You said U of T’s location was part of its appeal. What did you think of life in Toronto?

The people here are really friendly, a bunch of the scientists would go out for beers on Fridays. One hard part of academia is you move every couple of years and have to rebuild your social life, so it was nice having a social atmosphere.

I liked the city a lot in general. I went to undergrad and grad school in New York, so I think there was an element of city life that I like. Everyone compacted into one place will inevitably mean good bars, restaurants, museums, parks. Ice cream. The food is good. Poutine is great. I guess that's a theme.

And of course, being right on the water was nice. I'm from Minnesota originally so when I'm near a lake, it feels like home.

Did you discover poutine in Canada?

Yeah. Maybe I only started noticing poutine in the U.S. after I moved to Canada, but I do not remember it being a thing more than three years ago. I'm glad it followed me though.

Abigail Friendly uses city-building know-how to connect São Paulo and Toronto

Romi Levine — Thu, 10 Aug 2017 16:40:10 +0000

Abigail Friendly uses city-building know-how to connect São Paulo and Toronto

Romi Levine Thu, 08/10/2017 - 12:40

Cutline

U of T alumna Abigail Friendly in Rio de Janeiro (photo courtesy of Abigail Friendly)

Romi Levine

Author legacy

Romi Levine

Topic

Cities around the world are growing bigger and taller faster than ever before. By 2050 the United Nations estimates, 6.3 billion people – or 67 per cent of the world’s population – will be living in urban centres.

So how do we ensure that cities still reflect and accommodate their residents as they continue to grow?

U of T alumna Abigail Friendly looks at the different ways cities are doing just that – with a focus on Toronto and Brazil.

In Toronto, initiatives like Section 37 of the Planning Act allow developers to build higher or denser, so long as they feed money back into community projects. Friendly looks at how these kinds of policies compare to those in Brazilian cities like São Paulo.

Friendly completed a PhD in planning at U of T's Faculty of Arts & Science and completed postdoctoral research at the Munk School of Global Affairs’ Institute on Municipal Finance and Governance. This month, she began a new role as an assistant professor in the department of human geography and spatial planning at Utrecht University in the Netherlands.

“I'm living in the centre of an old city next to a canal – it's pretty great,” says Friendly.

Friendly is one of a new generation of thinkers transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

In this latest instalment of a new series from U of T News, we turn the spotlight on Friendly. Below, she talks about the value of comparative research, and what Toronto and Brazil can learn from each other.

How did you become interested in researching cities in Brazil?

I went to Brazil after my master's to look at the participatory budget of housing in a city called Belo Horizonte, which is the size of Toronto.

Participatory budgeting is an approach to local decision-making that emerged in Brazil. At the time I was studying it, it was still a hot topic. Citizens decide on the local budget – they're doing it in Toronto now too.

When I went back to do my PhD at U of T, I had already worked in Brazil for a bit. I spoke Portuguese (it was already becoming a passion of mine), and I thought this is a time when I can do what I want, study what I want.

Your most recent paper for IMFG looks at what São Paulo and Toronto does with money coming from developers for community projects. What did you find?

Land value capture is capturing the value of increased densities. To build higher and denser cities, developers or the private sector shouldn't necessarily be benefiting from all of that extra value that they're gaining, and some of it should go back to investing in cities for everyone.

When I realized that what was happening in Brazil was similar to Section 37 in Toronto – which people are very interested in because it's very politicized – it seemed like a really good comparison and a good way of seeing what was challenging in both cases.

It's interesting to see the difference, especially when you look at the map of where the benefits are taking place. In Toronto, it's all in the centre of the city, whereas in São Paulo, the idea is the whole city should benefit. It's much more dispersed, and that's what I show in the paper.

The research is more data-driven. It's more economics, but it has a social equity perspective that carries through the rest of my research in Brazil and beyond.

Toronto and São Paulo are different in many ways, What’s the value in comparing the two cities?

It's definitely hard to do comparative research – so that's one caution – but I think there's not enough of it. If you looked at the two cases separately, you might learn something about them, but if you look at them in comparison, you can learn from one another. It highlights the differences, but you can also learn about how we can improve things. Planning is really about looking at some of the challenges, how we can improve things, and how we can move toward a better future for cities and for people.

There's literature in different fields that says we should do comparative research more because of all of these benefits in political science, planning and even sociology.

You just moved to Utrecht to work at the university there. What will you be doing?

I started as an assistant professor here – it's quite an interesting, collaborative department. I start teaching in November.

I just got a new grant to do work in Brazil. It'll be fun – I'll be talking to planners and city staff about how they're progressing with a new law of metropolitan governance. I'll be collaborating with a colleague in Brasilia.

I'll be starting up new research as well – I’m hoping to continue my work in Toronto and Brazil.

Utrecht is the largest university in the Netherlands, and Utrecht itself is a really charming old city. It seemed like a really attractive move – and kind of an adventure.

It’s a big decision moving to a new country – what makes it worth it?

It's a great opportunity to make new contacts, try something new, travel to new places, learn new things, and you always grow when you do this kind of thing. Of course it's hard to be away from what you know, to start new things, and learn about a new place and how things work, let alone learning a new language, which I have to do. I have to learn Dutch.

But it's pretty fun so far. It's tiring, but there are a lot of payoffs.

Shreya Shukla and Nafees Rahman help pave way for off-the-shelf supply of cells for immunotherapy

ullahnor — Mon, 05 Jun 2017 17:08:08 +0000

Shreya Shukla and Nafees Rahman help pave way for off-the-shelf supply of cells for immunotherapy

ullahnor Mon, 06/05/2017 - 13:08

Cutline

Shreya Shukla (third from left) and other graduate students meet stem cell pioneer James Till (right) as he tours the laboratory of Professor Peter Zandstra (photo by James Poremba)

Jovana Drinjakovic

Author legacy

Jovana Drinjakovic

Topic

Remember This Name

Medicine by Design

Nafees Rahman and Shreya Shukla's research in cell engineering could lead to a readily available supply of cells to boost patients’ immune systems against disease and to fight cancer.

The two PhD students, who worked in the laboratory of Medicine by Design's Professor Peter Zandstra, had their research detailed recently in two papers published in Nature Communications and Nature Methods.

They are part of a new generation of thinkers transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

Right now, Shukla and Rahman are both working in California's biotechnology hub. Shukla is currently testing the technology she helped develop in a six-month internship through the Natural Sciences and Engineering Research Council of Canada’s Create M3 program. Rahman joined Neurona Therapeutics, a San Francisco startup that aims to generate human stem cell-derived nerve cells for the treatment of epilepsy.

In the final instalment of a new series from U of T News, we turn the spotlight on Rahman (pictured below) and Shukla.

Around the world, researchers are racing to find ways to use stem cells to treat, and even cure, debilitating diseases thanks to their ability to multiply and make all cell types in the body. Naturally occurring stem cells in the bone marrow and cord blood are being used to bolster the immune systems of patients undergoing cancer treatment that leaves them defenceless against infections. But because the cell grafts come from donors, they are not always available in sufficient supply.

Researchers working with Zandstra, who is located in the Donnelly Centre for Cellular and Biomolecular Research, are engineering ways to produce these cells in the lab. Zandstra is executive director of Medicine by Design, which brings together more than 100 researchers from across U of T and its affiliated hospitals, along with hundreds of post-doctoral fellows and graduate students, in collaborative teams to accelerate breakthroughs in regenerative medicine. With its commercialization partner, CCRM, the initiative is also driving Toronto’s regenerative medicine ecosystem and propelling new therapies to market – and ultimately to patients – more quickly.

Rahman specializes in making new blood from scratch as a potential source of cells for life-saving treatments. Together, he and Shukla developed new technologies that clear some of the barriers to having a limitless source of cells to target cancer and other diseases.

“A long-term vision in regenerative medicine is to have a renewable source of cells for therapy,” says Zandstra, a University Professor. “Our two papers focused on generating blood and immune cells in the lab that could be used in cancer immunotherapy. Working with our collaborators at U of T, affiliated hospitals and CCRM, we are getting closer to being able to do this.”

Working with Juan Carlos Zúñiga-Pflücker, a professor at U of T’s department of immunology and a senior scientist at Sunnybrook Research Institute, the PhD researchers broke down the problem into two areas.

First, they found a way to convert pluripotent stem cells – cells that are able to make all the cells in our bodies – into blood progenitor cells, an intermediate state from which all cells in the blood, including immune T cells that fight off infections, are formed. Then, they developed new technology for turning blood stem cells into T cells in a way that can be scaled up for clinical use.

Writing in Nature Communications, Rahman and colleagues described how simulating the cells’ natural environment during development was key to understanding how blood forms. Instead of spreading the cells evenly across the surface of the dish as usual, Rahman placed them in discrete clusters of different sizes. This allowed him to study how cells talk to each other to influence what kind of blood cells the stem cells turn into. He discovered that larger clusters produced fewer blood cells because the cells secrete a molecule that blocks this process.

“The importance of cell-cell communication during embryonic development is key and it was nice to see this phenomenon replicated in the dish,” says Rahman. “Just by changing cluster size we were able to control how many blood cells we get, resulting in a significant improvement in cell yields.”

While blood stem cell grafts can rebuild the patient’s immune system, it takes roughly a year for the immune T cells to appear and start working, leaving the patient vulnerable to life-threatening infections. Shukla’s goal was to protect patients faster.

“Our idea was to use blood stem cells to produce T cells in the lab that we can then transplant into patients,” says Shukla.

But producing immune cells has been hampered by uncertainty over the conditions and ingredients that are required, limiting their potential as medicine.

To overcome this challenge, Shukla identified essential components that are needed to spur the blood stem cells to become T cells. As described in the Nature Methods paper, the new technology consists of precisely-defined ingredients and can be scaled up for industrial production.

When injected into mice, the lab-grown T cells can rebuild the immune system in one month, far more quickly than what it takes for the blood stem cells to mature inside the body. If the same is true in humans, it could have immediate applications in cell transplantation.

“With our approach, you could move the field to where you have universal, off-the-shelf T cells which could be used in many applications, including cancer immunotherapy,” says Shukla. “You could start with blood or pluripotent stem cells, engineer them to recognize tumours and then turn these into T cells that would rapidly reconstitute the patient’s immune system with cancer-fighting cells.”

Electrical engineer Susanna Thon harnesses the power of solar energy

Romi Levine — Fri, 02 Jun 2017 15:58:03 +0000

Electrical engineer Susanna Thon harnesses the power of solar energy

Romi Levine Fri, 06/02/2017 - 11:58

Cutline

Susanna Thon is an assistant professor of engineering at Johns Hopkins University (photo by Botong Qiu)

Romi Levine

Author legacy

Romi Levine

Topic

Remember This Name

Alumni

Ted Sargent

Faculty of Applied Science & Engineering

Subheadline

“Science and engineering today are international – there's no getting around that”

Big things can come from tiny places – that’s what physicist Susanna Thon discovered as a post-doctoral researcher at the �ؿ�ζSM.

As a member of the Sargent Group, led by University Professor and Vice-President International Ted Sargent, she studied colloidal quantum dot solar cells – technology that uses nanomaterials to absorb solar energy.

“It can be cheaper to manufacture than traditional solar technology,” says Thon. “It's also very flexible so it could be coated on many kinds of surfaces.”

She is now an assistant professor and leads her own lab at Johns Hopkins Whiting School of Engineering, where she continues her research on nanomaterials.

Thon is one of a new generation of thinkers transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

In the sixth instalment of a new series from U of T News, we turn the spotlight on Thon. Below, she talks about her time at U of T and the importance of keeping science international.

How did you find out about U of T and Ted Sargent's lab?

Ted's a really well-known guy in his field so at the end of my PhD, I knew that I wanted to transition to something more applied in the area of optical physics, and specifically I wanted to work on solar energy technology. I did a lot of reading of the scientific literature, and of course, Ted's name comes up again and again. I had heard of U of T as a great research institution – a very large research institution – so it has a strong international profile. His research work really matched with my interests.

What were your biggest takeaways from your time at U of T?

Because of my academic work and research, I had the chance to mentor more junior PhD students and undergrads, and that was a great experience for me. I got a lot of exposure to a lot of experts in the field because Ted and the department are great about bringing in people who are leaders in those fields. I learned a lot about interdisciplinary research because, although Ted's in the electrical and computer engineering department, he has many collaborations and uses techniques from many different fields, including physics, chemistry and materials science.

I also got to travel to the Canadian Light Source, which is a cyclotron – a particle accelerator that produces high-energy light beams in Saskatoon – to use that facility to do scattering measurements on our materials, and I had the opportunity to travel all over the world to conferences to give talks on our research. I have to say, it was a great experience – I love U of T, and I love Toronto.

What are you working on at Johns Hopkins?

I started at Johns Hopkins in late 2013 as an assistant professor, and I'm in the electrical and computer engineering department here. In my research program, I have four PhD students at the moment and a bunch of undergrads in my lab. We've continued to work in the area of nanomaterials for solar energy and other optical electronics as well.

What do you think is the value of researching or studying outside of your home country?

It's useful to experience different cultures because science and engineering today are international – there's no getting around that. There's a real value in seeing how other systems work – in terms of how graduate students are funded, how research is funded, as well as how the large collaborations that are necessary to do science these days work in different countries. It's partially so that students can take that knowledge back to their home countries and also to get exposure to different kinds of techniques. Personally, I enjoy going to a different place, learning new things, and Toronto specifically is great because it's such an international city. It's also a big city so there's great food, great public infrastructure – I had a great time here.

What advice would you give students who are graduating this year?

The political landscape today is much more complicated than when I graduated in terms of doing science either internationally or otherwise so I think it's important to keep those connections as open as we can. Science is an international endeavour today, and if we want it to continue to thrive, we have to continue to have that be the case – we need resources from all over the world to do the best science and engineering.

It's important to be open-minded. It's important to keep reading, keep learning throughout your career. For me, looking back to when I was graduating as an undergrad with a degree in physics, I kept seeking new material. I kept reading – not just physics and science – but engineering and politics. All fields today are related. I'm constantly applying for government grants so I have to know about the current political climate, what the most applications are going to be, where funding is going to come from – that means keeping engaged in the political process.

In Trump's America, political scientist Debra Elizabeth Thompson researches the culture and history of race

Romi Levine — Wed, 31 May 2017 15:07:33 +0000

In Trump's America, political scientist Debra Elizabeth Thompson researches the culture and history of race

Romi Levine Wed, 05/31/2017 - 11:07

Cutline

Debra Elizabeth Thompson completed her PhD at U of T in political science (photo by Romi Levine)

Romi Levine

Author legacy

Romi Levine

Topic

This past weekend, two men were killed in Portland, Ore., after they tried to help a pair of young women who were being harassed by a man on an anti-Muslim tirade.

“It is an interesting time to do what I do, but tragically so,” says Debra Elizabeth Thompson who completed her PhD in political science at �ؿ�ζSM and is currently an assistant professor of African American studies at Northwestern University in Chicago.

As an expert in the politics of race, she’s studied everything from how race is portrayed in census data to the Black Lives Matter movements all over the world.

“The goal of every race scholar should be that we ultimately want to be out of a job – I don't want to work on racial inequality for the rest of my life. I want to see a future in which there is no such thing as racial inequality,” says Thompson.

Between U of T and Northwestern, Thompson was a post-doctoral researcher at Harvard University and taught at Ohio University. In September, she’s heading to the University of Oregon to join its political science faculty.

Thompson is one of a new generation of thinkers, transforming research across the globe. They come from all corners of the world to do their PhD or postdoctoral research at the �ؿ�ζSM, drawn by the chance to work with the leading experts in their fields.

Where do they go from here?

In this fifth instalment of a new series from U of T News, we turn the spotlight on Thompson. Below, Thompson talks about her U of T experience and what it’s like studying race in Trump’s America.

What was your time at U of T like as a PhD candidate?

It was a really positive experience but not without its challenges. U of T is this huge university and so there were times when it was really difficult to make your own way. That being said, I felt really well-supported in my department.

I ended up taking classes in English and at OISE so I was really able to have this interdisciplinary training, which is still beneficial today after I've switched disciplines – I'm now a professor of African American studies. That training was really helpful.

I think my cohort of students was just phenomenal. I made some of my greatest friends and allies – we're still all great friends. I learned a lot from the people who I chose to surround myself with.

How was your experience at Harvard as a post-doctoral researcher?

I really enjoyed my year at Harvard. I was surrounded by really smart people, but that was very similar to U of T where I was also surrounded by very, very smart people… I was happy to go to Harvard and see if I could play in the big leagues – and I obviously could so that was a testament to the training I got in Toronto.

What's the value for academics in Canada to live and work in another country?

It's crucial because the world is big, and life is long. It's particularly important to get that different view to take ourselves out of our comfort zones and to look at things a little bit differently. That being said, home is home. I'm very proud of being Canadian, and I don't think I'll ever change or lose that. I can imagine coming back to teach in Canada at some point.

What advice would you give students who are graduating this year?

Martin Luther King said “the arc of the moral universe is long.” When people graduate from undergrad or their master's or PhD, they don't realize how long their career is. There's no such thing as a dream job. You have to find happiness in its various manifestations. No job is going to be everything that you like, but hopefully you find something you love – that's an important thing to look for.

The political landscape in the U.S. has changed significantly over the past year. Does it feel like a different America to you?

Yes and no. No, this isn't a different America because I'm a Black Canadian. I'm passing as African American and actually, my family is from the U.S., way, way back. My great, great-grandfather came to Canada from the Underground Railroad and just stayed in Chatham, Ont. So, for Black people in America, things don't feel a whole lot different. Black wealth is significantly less than white wealth.

These trends that have been a permanent feature of American political and social life continued under Obama. Trump is not that different from any other American president. For people of colour in this country, the vitriol is a little less hidden than it used to be – but would you rather fight the enemy you can see or you can't see? I live in Chicago, and I am terrified of the police. I don't live in the South Side where they have prevailed and terrorised Black populations for decades. But at the same time, these dynamics didn't emerge with Trump.

Last week, two bystanders stood up for young Muslim women who had been harassed in Portland and were stabbed. A knife-wielding racist stabbed someone in California. There is something different going on in that the racists have come out of the closet. What I want to emphasize is that they were always there in the closet – they didn't just magically come out of the wardrobe from Narnia in 2016. They've always been there, but they do certainly seem to be bolder. It is scary – there are people who are the victims of real violence.

What will you be doing at the University of Oregon?

I'm really excited to be there – I'm moving back to political science, but with the idea that I would be there with a new cohort of Black scholars that will build an African American studies program there. Oregon is this interesting state with a lot of really interesting racial dynamics that I'm excited to learn about.

Remember This Name

Researchers discover tiny, 500-million-year-old predecessor to scorpions and spiders

Deni Kasa explores the religious origins of liberalism at Tel Aviv University

Johanna Thoma tackles decision theory, from how we live our lives to how public policy gets decided

Glenn Tiller helps Texas students discover classic American philosophy and the joy of studying the humanities

Quinn Konopacky searches for new planets orbiting distant stars

Cosmologist Laura Newburgh works on a transformative radio astronomy telescope

Abigail Friendly uses city-building know-how to connect São Paulo and Toronto

Shreya Shukla and Nafees Rahman help pave way for off-the-shelf supply of cells for immunotherapy

Electrical engineer Susanna Thon harnesses the power of solar energy

In Trump's America, political scientist Debra Elizabeth Thompson researches the culture and history of race

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