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Jesús Pérez Ríos at the New York Public Library in 2023. Photo by Anne Martinez Hoth

By Daniel Dunaief

When he’s looking to relax, he builds and rebuilds some of the LEGO sets in his house in East Setauket. One of the things he likes best about being on Long Island, where he’s lived for the last two years, is that he can be alone to think and develop new ideas.

To hear Jesús Pérez Ríos describe himself, he is “just a kid having fun.” An Assistant Professor in the Department of Physics and Astronomy at Stony Brook University, Pérez Ríos enjoys bridging scientific knowledge, applying his physics background to questions, problems and puzzles in other fields.

Recently, the Stony Brook physicist, who is also an affiliated faculty member at the Institute for Advanced Computational Sciences, collaborated with Stefan Willitsch, Professor in the Department of Chemistry at the University of Basel in Switzerland, to explore the forces that might be inhibiting the reaction between hydroquinone and neon.

In a paper published in the journal Nature Chemistry, Pérez Ríos, Willitsch and members of their teams described in detail several potentially opposing forces that affect the reactivity in the experiment.

Jesús Pérez Ríos at the Barnes and Noble in New York City in 2022 with Lego batman. Photo by Anne Martinez Hoth

“I started collaborating with [Willitsch] because he had accurate results, and it was hard to explain the observations,” said Pérez Ríos. “We had a hypothesis but needed to develop models to test it.”

Pérez Ríos described two interactions in detail. One is due to the long range atom-molecule interactions and the other comes from internal rotational dynamics.

With the experiments in Willitsch’s lab and the theory developed by Pérez Ríos and his colleagues, they highlighted the role of rotational quantum states in a hydroquinone-neon chemi-ionization reaction. A similar mechanism and approach may be suitable for other reactions as well, such as molecular ion-atom reactions.

These molecules are akin to puzzle pieces coming together. Instead of a two-dimensional alignment where pieces find each other and lock together in their complementary parts, these pieces also have rotational effects that can cause a misalignment.

“That is one of our key findings,” Pérez Ríos explained. “It is like the shape of the puzzle piece evolves depending on the molecule’s collision energy and internal state.”

The results presented in the scientific paper are in the realm of fundamental research, with no “immediate practical application in synthesis or catalysis,” explained Willitsch.

Nonetheless, the insights gained through this collaboration “leads to a better understanding of the relevant reaction mechanisms and thus enables a more efficient design of future chemical reactions.”

At this point, Willitsch has presented the work at several conferences, where he has found a receptive audience and expects it will “foreseeably stimulate further work in the field.”

A search for answers

Pérez Ríos explained that Willitsch had some possible explanations for his data, but he did not have a mathematical model to test his hypothesis.

Jesus Pérez Ríos in Port Jefferson in 2022. Photo by Anne Martinez Hoth

“He mentioned the experimental details to me and we discussed the data,” said Pérez Ríos, who has known Willitsch for about 12 years. “Then, we started to do calculations from our side.”

Pérez Ríos has a team of 7 PhD students, one postdoctoral researcher, one Master’s candidate and three undergraduates.

Members of his lab work on simulations of physical phenomena regarding atomic and molecular processes. Additionally, they work on machine learning applications to atomic and molecular physics, exploring ways to teach a machine classical mechanics or quantum mechanics through chemical reactions.

In the reaction he was studying, Willitsch was working with hydroquinone, which has two conformers. These are two molecules with the same chemical formula that have two different structures.

Willitsch was able to select for a particular type of conformer in its reaction with neon.

Pérez Ríos considered many possibilities and models, none of which was fully satisfactory. 

An insight at a conference

When he was at an Air Force Office of Scientific Research review program in Washington DC, Pérez Ríos was considering the problem from numerous perspectives.

He had tried many possibilities, but none were convincing. He needed something new.

“I had the physical picture of the model during a conference: in a break, I started to work on the code, and, in a few hours, I had something ready to get some very preliminary results,” Pérez Ríos recalled.

Willitsch enthusiastically embraced the preliminary results and the group decided to make it more realistic, developing the version of the code to explain Willitsch’s data.

The dynamics simulations were ready in a month, with extra checks conducted for another month to ensure everything was correct. The joint effort took over a year and a half to produce a fulfilling explanation.

Many of Pérez Ríos’s collaborators come from different disciplines, which gives the Stony Brook Assistant Professor an opportunity to learn about a variety of topics. He has worked with particle, atmospheric, atomic and plasma physicists and spectroscopists and chemists.

Pérez Ríos suggested that a physics perspective can help in a variety of settings, even including household problems and daily challenges.

Echoing a theme from the main character Jason Nesmith (played by Tim Allen) in the movie Galaxy Quest, Pérez Ríos said, “you can never surrender.”

 Pérez Ríos added that you “are the only one putting limits on yourself. However, you need to pick the battles worth fighting, which is a very difficult matter.”

More American than Americans

A resident of East Setauket where he lives with his wife Anne Martinez Hoth, Pérez Ríos grew up in Guardamar del Segura, a small town in Alicante, Spain.

The son of restaurant owners,  Pérez Ríos said he didn’t travel during summers to the beach, the way many of his friends did.

When he wasn’t helping in the restaurant, he used his free time to learn about math, zoology, genetics, chemistry and physics.

He enjoys living on Long Island and in the United States. His wife suggests he is “more American than the Americans” because he likes the American job philosophy and the freedom.

At Stony Brook, Pérez Ríos teaches quantum mechanics to undergrads, some of whom say he is strict.

“I have a very particular approach focusing on learning to think rather than knowing how to solve a problem,” he said.

As a research partner, Pérez Ríos is an unusual find, bringing constructive and valuable insights to discussions.

“I have rarely collaborated with someone so energetic and broadly interested” as Pérez Ríos, Willitsch said. “I particularly value his pragmatic approach and that he is not afraid to leave his comfort zone to delve into totally new classes of problems, which have not been tackled before either by himself or others.”

Willitsch added that few scientists have the same broad knowledge of physics and chemistry, which is “vital to push this interdisciplinary frontier.”

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Battery chemist Xiao-Qing Yang (left) with colleagues Enyuan Hu and Eli Stavitski at the Inner-Shell Spectroscopy (ISS) beamline of the National Synchrotron Light Source-II at Brookhaven National Laboratory. (Brookhaven National Laboratory)

Longer lasting batteries would allow electric vehicles (EVs) to drive farther and perhaps inspire more people to make the switch from fossil fuels. One key to better EV batteries is understanding the intricate details of how they work — and stop working.

Xiao-Qing Yang, a physicist who leads the Electrochemical Energy Storage group within the Chemistry Division at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory, has spent a good deal of his professional career doing just that. DOE’s Vehicle Technologies Office (VTO) recently recognized his contributions with a Distinguished Achievement Award presented during its 2024 Annual Merit Review. Each year, VTO presents awards to individuals from partner institutions for contributions to overall program efforts and to recognize research, development, demonstration, and deployment achievements in specific areas.

Yang was honored “for pioneering [the use of] advanced characterization tools, such as in situ X-ray diffraction and absorption, to analyze battery materials under operational and extreme conditions in support of VTO battery research and development (R&D) at Brookhaven National Laboratory over the last 38 years.”

These techniques use intense beams of X-rays — for example, at Brookhaven Lab’s National Synchrotron Light Source II (NSLS-II) — to study the atomic-level structure and chemical and electronic characteristics of battery materials in real time as the batteries charge and discharge under real-world operating conditions over repeated cycles. The use of these methods has been adopted at other synchrotrons throughout the DOE complex of national laboratories to provide scientists with a fundamental understanding of the relationship between the structure and the performance of battery systems. This research also provides guidance and approaches to design and synthesize new improved materials.

“This award recognizes the efforts of and honors the whole Electrochemical Energy Storage group, not just me,” said Yang. “Throughout my career, my goal has been to design and synthesize new high-energy materials with improved power density, longer cycle and calendar lives, and good safety characteristics,” he noted. “It’s great to see these efforts recognized as we try to move toward increased use of electric vehicles to meet our transportation needs.”

Xiao-Qing Yang earned a Bachelor of Science degree in material science from Shannxi Mechanic Engineering Institute in China in 1976 and a Ph.D. in physics from the University of Florida, Gainesville, in 1986. He joined Brookhaven Lab’s Materials Science Department in 1986 and rose through the ranks, serving as a Principal Investigator (PI) in materials science from 1993-2005. Since then, he has been a PI in the Lab’s Chemistry Department (now Division), serving as group leader for the Electrochemical Energy Storage Group and as a lead PI and coordinator for several battery research programs funded by VTO within DOE’s Office of Energy Efficiency and Renewable Energy, including the Battery500 consortium. He received the 2012 Vehicle Technologies Program R&D Award and the 2015 International Battery Materials Association (IBA) Research Award. He is a member of the Board of Directors of both IBA and IMLB LLC, the organization that runs international meetings for lithium battery researchers, and he has served as an organizer and invited speaker at these and many other conferences.

Brookhaven National Laboratory is supported by the Office of Science of the U.S. Department of Energy. The Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time. For more information, visit science.energy.gov [https://www.energy.gov/science/].

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Qingtao Sun, postdoctoral researcher at CSHL, presents a poster of the cachexia research taken at a Society for Neuroscience meeting in 2023 in Washington, DC. Photo by Dr. Wenqiang Zheng

By Daniel Dunaief

Cancer acts as a thief, robbing people of time, energy, and quality of life. In the end, cancer can trigger the painful wasting condition known as cachexia, in which a beloved relative, friend or neighbor loses far too much weight, leaving them in an emaciated, weakened condition.

A team of researchers at Cold Spring Harbor Laboratory has been studying various triggers and mechanisms involved in cachexia, hoping to find the signals that enable this process.

Recently, CSHL scientists collaborated on a discovery published in the journal Nature Communications that connected a molecule called interleukin-6, or IL-6, to the area postrema in the brain, triggering cachexia.

By deleting the receptors in this part of the brain for IL-6, “we can prevent animals from developing cachexia,” said Qingtao Sun, a postdoctoral researcher in the laboratory of Professor Bo Li.

Through additional experiments, scientists hope to build on this discovery to develop new therapeutic treatments when doctors have no current remedy for a condition that is often the cause of death for people who develop cancer.

To be sure, the promising research results at this point have been in an animal model. Any new treatment for people would not only require additional research, but would also need to minimize the potential side effects of reducing IL-6.

Like so many other molecules in the body, IL-6 plays an important role in a healthy system, promoting anti- and pro-inflammatory responses among immune cells, which can help fight off infections and even prevent cancer.

“Our study suggests we need to specifically target IL-6 or its receptors only in the area prostrema,” explained Li in an email.

Tobias Janowitz, Associate Professor at CSHL and a collaborator on this project, recognized that balancing therapeutic effects with potential side effects is a “big challenge in general and also is here.”

Additionally, Li added that it is possible that the progression of cachexia could involve other mechanistic steps in humans, which could mean reducing IL-6 alone might not be sufficient to slow or stop this process.

“Cachexia is the consequence of multi-organ interactions and progressive changes, so the underlying mechanisms have to be multifactorial, too,” Miriam Ferrer Gonzalez, a co-first author and former PhD student in Janowitz’s lab, explained in an email.

Nonetheless, this research result offers a promising potential target to develop future stand alone or cocktail treatments.

The power of collaborations

Working in a neuroscience lab, Sun explained that this discovery depended on several collaborations throughout Cold Spring Harbor Laboratory. 

“This progress wouldn’t be possible if it’s only done in our own lab,” said Sun. “We are a neuroscience lab. Before this study, we mainly focused on how the brain works. We have no experience in studying cachexia.”

This paper is the first in Li’s lab that studied cachexia. Before Li’s postdoc started this project, Sun had focused on how the brain works and had no experience with cachexia.

When Sun first joined Li’s lab three years ago, Li asked his postdoctoral researcher to conduct an experiment to see whether circulating IL-6 could enter the brain and, if so where.

Sun discovered that it could only enter one area, which took Li’s research “in an exciting direction,” Li said.

CSHL Collaborators included Janowitz, Ferrer Gonzalez, Associate Professor Jessica Tolkhun, and Cancer Center Director David Tuveson and former CSHL Professor and current Principal Investigator in Neurobiology at Duke University School of Medicine Z. Josh Huang.

Tollkuhn’s lab provided the genetic tool to help delete the IL-6 receptor.

The combination of expertise is “what made this collaboration a success,” Ferrer Gonzalez, who is now Program Manager for the Weill Cornell Medicine partnership with the Parker Institute for Cancer Immunotherapy, explained in an email.

Tuveson added that pancreatic cancer is often accompanied by severe cachexia.

“Identifying a specific area in the brain that participates in sensing IL-6 levels is fascinating as it suggests new ways to understand physiological responses to elevated inflammation and to intervene to blunt this response,” Tuveson explained. “Work in the field supports the concept that slowing or reversing cachexia would improve the fitness of cancer patients to thereby improve the quality and quantity of life and enable therapeutic interventions to proceed.”

Tuveson described his lab’s role as “modest” in promoting this research program by providing cancer model systems and advising senior authors Li and Janowitz.

Co-leading an effort to develop new treatments for cachexia that received a $25 million grant from the Cancer Grand Challenge, Janowitz helped Sun understand the processes involved in the wasting disease. 

Connecting the tumor biology to the brain is an “important step” for cachexia research, Janowitz added. He believes this step is likely not the only causative process for cachexia.

Cutting the signal

After discovering that IL-6 affected the brain in the area postrema, Sun sought to determine its relevance in the context of cachexia.

After he deleted receptors for this molecule, the survival period for the test animals was double that for those who had interleukin 6 receptors in this part of the brain. Some of the test animals still died of cachexia, which Sun suggested may be due to technical issues. The virus they used may not have affected enough neurons in the area postrema.

In the Nature Communications research, Sun studied cachexia for colon cancer, lung cancer and pancreatic cancer.

Sun expects that he will look at cancer models for other types of the disease as well.

“In the future, we will probably focus on different types” of cancer, he added.

Long journey

Born and raised in Henan province in the town of Weihui, China, Sun currently lives in Syosset. When he’s not in the lab, he enjoyed playing basketball and fishing for flounder.

When he was growing up, he showed a particular interest in science.

As for the next steps in the research, Sun is collaborating with other labs to develop new strategies to treat cancer cachexia.

He is eager to contribute to efforts that will lead to future remedies for cachexia.

“We are trying to develop some therapeutic treatment,” Sun said.

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Satellite image of the phytoplankton bloom. Photo courtesy NOAA

By Aidan Johnson

From a young age, children are taught that the ocean isn’t actually blue but is simply reflecting the color of the sky. However, the ocean recently took on a turquoise color not caused by the sky but by organisms called phytoplankton in the water.

Phytoplankton are tiny, commonly single-celled photosynthetic organisms in bodies of water that are carried by tides and currents and are too weak to swim against them.

Along the South Shore, all the way from Montauk to Brooklyn and spanning about 100 miles into the Atlantic Ocean, there is an algal bloom full of a specific type of phytoplankton called coccolithophores, explained Christopher Gobler, a professor at the School of Marine and Atmospheric Sciences at Stony Brook University.

According to Gobler, this particular type of phytoplankton has a shell that’s made of calcium carbonate, which is the same substance that clam shells are made of, albeit to a much larger degree.

“What can happen is that after [the coccolithophores have] grown for a while, the shell begins to dissolve and then they might start dying off,” he said in an interview. “And so the coloration seems to be from the dissolution of that shell. It looks green, but it’s really just the interaction of the calcium carbonate with the seawater and the sunlight that collectively leads to that color.”

Gobler also clarified that the coccolithophores do not pose a direct health risk to sea life, but instead “fuel the food chain.”

“And so for the present time at least … we can call it a neutral deposit,” he said.

The bloom already seems to be dissipating, according to Gobler, which means that the sky will once again take credit for the water’s blue appearance.

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Mario Shields Photo by David Cardona-Jimenez

By Daniel Dunaief

Friend or foe? The question isn’t as easy in the world of molecular biology as it might be after captains pick players for a team.

An important biomolecule in one context could trigger the growth or spread of cancer, while in another system or organ, that same signal might suppress or stop the development or growth of a disease that can threaten people’s health.

So it is for G-proteins, which, in some tumors, serve as tumorigenic signaling hubs that participate in invasion and metastasis and promote inflammation and immune evasion.

In tumors “there was this notion that it works in a certain way, driving tumor development and progression,” said Mario Shields, Associate Professor of Research Pathology at Stony Brook University. “We had that original hypothesis when we investigated it in pancreatic cancer. We found that it’s the opposite.”

Indeed, when the specific proteins he studies, called G alpha 13, are absent, mouse models develop well-differentiated tumors that reduce their survival.

“My research now is to understand why it’s playing the opposite role that we initially expected,” Shields, who joined Stony Brook in July after six years at Northwestern University.

Having worked at Cold Spring Harbor Laboratory in the lab of Mikala Egeblad from 2012 to 2018, Shields is returning to the Long Island area with a focus on defeating a problematic type of cancer that steals precious time from people and robs families of important members.

“I have come to appreciate the dire situation of people who are diagnosed with pancreatic cancer,” Shields said. “We need to figure out how to lower the curve.”

A recipient of the National Cancer Institute’s Moonshot Award, Shields is one of the first 11 Cancer Moonshot Scholars who received a total of $5.4 million.

The program, which was launched by the Biden administration in the summer of 2023, seeks to advance cancer science while diversifying the pool of early-stage researchers and approaches to research that NCI funds.

The goal of the program is to inspire and support scientists from diverse backgrounds, including those from underrepresented groups in the biomedical sciences.

The NCI award, which Shields brings with him to Stony Brook, will support his efforts.

Egeblad, who is now Bloomberg Distinguished Professor of Tumor Microenvironment, has stayed in contact with Shields since he left her group. The work he’s doing is “very important” in understanding the “basic mechanism of pancreatic cancer progression” as he has been “very successful in making discoveries and raising funds for his research.”

Egeblad appreciates his contribution to her lab. Shields “was responsible for establishing our research program in pancreatic cancer,” she explained. “Before he joined my lab, I had only worked on breast cancer and [Shields] established the various models to also study pancreatic cancer — models that we are still using.”

Building on CSHL work

At CSHL, Shields worked in Egeblad’s lab and received advice and oversight from David Tuveson, Cancer Center Director at CSHL, who developed the mouse model Shields uses.

Shields has been using human and mouse cell lines to interrogate the mechanism of action of these G proteins in suppressing cancer. 

At Stony Brook, he plans to use patient samples to develop patient-derived tumor specimens.

The major hub of what Shields is studying is the mTOR pathway, which stands for mammalian/ mechanistic target of rapamycin. First isolated in a bacteria on Easter Island in the middle of the 20th century, rapamycin is an immunosuppressant drug.

Any defects that activate the mTOR pathway can lead to the growth and development of cancer.

A developing field

Shields explained that the G protein he is studying, G alpha 13, is a “niche” area right now, with few other labs pursuing the same mechanistic pathway. The G proteins are of more interest to molecular pharmacology and drug design.

In his studies, Shields hopes to use the information on the response to changes in the protein to predict how patients respond to therapy that inhibits the mTOR pathway.

Specifically, he is exploring how alterations in the microenvironment can cause the tumor to progress in pancreatic cancer.

Shields has found some “interesting dependencies” in the mechanism he’s studying. In the first year of work at Stony Brook, he would like to figure out how Ga13 regulates mTOR signaling, as the current context dependency is vague.

The gene that codes for this protein is not heavily mutated. Shields anticipates that a threshold level of the protein may be responsible for conveying its benefit in suppressing cancer, rather than a specific mutational change.

He is eager to explore whether nutrient availability plays a role in cancer progression through the reduction in this G protein. He has exploring that in vitro and is curious how that will translate at the organismal level.

Returning to Long Island

Shields had recently been Research Associate Professor in the Department of Medicine at the Feinberg School of Medicine at Northwestern University.

Having worked at Cold Spring Harbor Laboratory, Shields felt comfortable moving back to the Long Island area.

“Stony Brook is a good place to do research,” said Shields.

Additionally, Shields was impressed with the number of people who had presented their research from Pathology Chair Kenneth Shroyer’s lab at a conference.

“Further discussions [with Shroyer] indicated we have areas of common interest in terms of pancreatic cancer,” Shields added.

Shields appreciates the greenness of Long Island. When he worked at CSHL, he enjoyed walking on trails and enjoyed the variety of fall colors.

Shields brought one person with him from Northwestern and plans to have a lab of about six people.

As for running his lab, Shields plans to “be patient” and to “see where people are coming from and what they are capable of” as he takes on the role of mentor for members of his lab at Stony Brook.

Shields hopes to inspire and encourage under represented groups to pursue careers in science, technology, engineering and math.

Egeblad suggested that Shields is warm and calm, which “helps those entering the field really take to his instruction.” She added she believes he is an inspiration to many young scientists.

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Dino Martins

Stony Brook University  announces that noted Kenyan entomologist and evolutionary biologist Dr. Dino J. Martins will begin serving as the director of the world-renowned Turkana Basin Institute beginning on September 1, 2024.

Martins has served as the CEO of TBI (Kenya) Ltd. since August 1, 2022, and has been affiliated with TBI since 2011. In this transition from CEO for TBI’s Kenya operations to serving as director across the entire TBI operation, Martins will lead vision and strategy to build upon the institute’s legacy as a critical site of research and discovery around some of the biggest questions of our time concerning our origins, our current role and responsibilities and, most critically, our future on a changing planet.  Martins will oversee all Institute activities including recruitment, hiring and evaluation of faculty and postdoctoral researchers; development of facilities and fundraising.

Martins will succeed Dr. Lawrence Martin, who has served as the director of TBI since 2007 and will be named TBI director emeritus, taking on a new role to support TBI’s fundraising efforts by organizing and leading donor visits to Kenya as well as working on several other projects for the university.

“As Lawrence and Dino have worked hand-in-hand over the last several years, this will be a seamless transition in the leadership of TBI. I am grateful to Lawrence for his outstanding leadership of TBI, and I look forward to working with Dino to build upon the incredible foundation that has been established and to elevate TBI to even greater heights,” said Carl Lejuez, Provost of Stony Brook University.

Martins earned his PhD in Organismic and Evolutionary Biology from Harvard University in 2011 before joining TBI as a postdoctoral fellow at Stony Brook University. Martins had previously graduated with a B.A. in Anthropology from Indiana University and with a M.SC. in Botany from the University of KwaZulu Natal. Martins taught in the TBI Origins field school every semester it has been offered since spring of 2011, when the field school began.

Upon completion of his postdoc, Martins took on the position of resident academic director of the TBI Origins Field School and served for three years before accepting the position of executive director of the Mpala Research Center in Laikipia, Kenya, which is overseen by Princeton University, the Smithsonian Institution, the Kenyan Wildlife Service, and the National Museums of Kenya. During his seven years as director, Dino worked to improve the operations and finances of Mpala and expanded the number of institutions conducting research there.

Martins’ research in the Turkana Basin has included the description of new species of bees, including some of the most ancient lineages of bees known and the discovery of genera previously not recorded from Africa. Martins is also a Co-PI of the Turkana Genome Project, which is bringing together dozens of international scientists to look at the complex interactions among human genes, the environment and adaptation. Dino is actively building links and collaborations globally to expand the scientific frontiers of research at TBI. This includes building on the excellent fundamental research around human origins and evolution, to other disciplines that intersect with the fields of evolution and ecology, climate change and the future of sustainable human existence and development.

About TBI

The Turkana Basin Institute (TBI), a Stony Brook University Institute was established by the late celebrated paleoanthropologist, conservationist and Stony Brook University faculty member Richard Leakey. TBI’s mission is to facilitate the logistics of field research in the Turkana Basin, a remote region of sub-Saharan Africa, by providing permanent research support infrastructure. Fundraising to implement the project began in 2005 and funds have been raised every year since for the construction and running costs of two field campuses.

TBI today houses a sophisticated environment to support the research of scientists and students at its two field campuses, TBI-Turkwel and TBI-Ileret, as well as through an administrative support center in Nairobi. Each of the field campuses comprises 15 to 20 major buildings providing accommodation and dining facilities for up to 60 scientists and students as well as the permanent staff of about 40. In addition, there are multiple laboratories, classrooms for field schools, and conference facilities. TBI has purchased and maintains a Cessna 208 Grand Caravan airplane, which operates as Air Turkana, providing reduced cost flying for education and research that is subsidized by revenue from commercial charters.

 

 

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Stony Brook University: Entrance sign

Stony Brook University and the Simons Foundation were recently named recipients of the Insight Into Diversity magazine 2024 Inspiring Programs in STEM Award.

Insight Into Diversity is the largest and oldest diversity and inclusion publication in higher education. The Inspiring Programs in STEM Award honors colleges and universities that encourage and assist students from underrepresented groups to enter the fields of science, technology, engineering, and mathematics (STEM). Stony Brook University and the Simons Foundation will be featured, along with 82 other recipients, in the September 2024 issue of Insight Into Diversity magazine.

“I am so proud of the cutting-edge research, outstanding teaching, and engaged scholarship and service gained from the collaboration of Stony Brook and the Simons Foundation around excellence in STEM,” said SBU Vice President for Equity and Inclusion and Chief Diversity Officer Judith Brown Clarke. “We look forward to continued partnership in our quest for deep transformational impacts that are powerful and create long-lasting changes that have a positive effect on individuals, communities, and entire societies.”

Inspiring Programs in STEM Award winners were selected by Insight Into Diversity based on efforts to inspire and encourage a new generation of young people to consider careers in STEM through mentoring, teaching, research, and successful programs and initiatives.

“I take great pride in the dedication and enthusiasm shown by our scholars and staff in initiating this program with such vigor and excellence. We are grateful for this recognition and remain dedicated to advancing the legacy we have started,” said Erwin Cabrera, executive director of the Stony Brook Simons STEM Scholars Program. “The core values of Insight Into Diversity Inspiring Programs closely resonate with the objectives of the SBU Simons STEM Scholars program, and we appreciate the opportunity to be recognized alongside other distinguished recipients.

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Simon Birrer Photo by Andrea Hoffmann

By Daniel Dunaief

When he was young, Simon Birrer asked his parents for a telescope because he wanted to look at objects on mountains and hills.

Simon Birrer.  Photo Studio, Mall of Switzerland

While he was passionate about science and good at math, Birrer didn’t know at the time he’d set his sights much further away than nearby hills or mountains in his professional career.

An Assistant Professor in the department of Astronomy and Physics at Stony Brook University, Birrer uses telescopes that generate data from much further away than nearby hills as he studies the way light from distant galaxies bends through a process called gravitational lensing. He also works to refine a measure of the expansion of the universe.

“All matter (including stars in galaxies) are causing the bending of light,” Birrer explained in an email. “From our images, we can infer that a significant fraction of the lensing has to come from dark (or more accurately: transparent) matter.”

Dark matter describes how a substance of matter that does not interact with any known matter component through a collision or pressure or absorption of light is transparent.

While they can’t see this matter through various types of telescopes, cosmologists like Birrer know it’s there because when it gets massive enough, it creates what Albert Einstein predicted in his theory of relativity, altering spacetime. Dark matter is effectively interacting with visible matter only gravitationally.

Every massive object causes a gravitational effect, Birrer suggested.

When a single concentration of matter occurs, the light of a distant galaxy can produce numerous images of the same object.

Scientists take several approaches to delens the data. They rely on computers to perform ray-tracing simulations to compare predictions with the astronomical images.

The degree of lensing is proportional to the mass of total matter.

Birrer uses statistics and helps draw conclusions about the fundamental nature of the dark matter that alters the trajectory of light as it travels towards Earth.

He conducts simulations and compares a range of data collected from NASA Hubble and the James Webb Space Telescope.

Hubble constant

Beyond gravitational lensing, Birrer also studies and refines the Hubble constant, which describes the expansion rate of the universe. This constant that was first measured by Edwin Hubble in 1929.

“An accurate and precise measurement of the Hubble constant will provide us empirical guidance to questions and answers about the fundamental composition and nature of the universe,” Birrer explained.

During his postdoctoral research at UCLA, Birrer helped develop a new “formalism to measure the expansion history of the universe accounting for all the uncertainty,” Tomasso Treu, a Vice Chair for Astronomy at UCLA and Birrer’s postdoctoral advisor. “These methodological breakthroughs lay the foundation for the work that is being done today to find out what is dark matter and what is dark energy,” which is a force that causes the universe to expand at an accelerating rate.

Treu, who described Birrer as “truly outstanding” and one of the ‘best postdocs I have ever interacted with” in his 25-year career, suggested that his former student was relentless even after impressive work.

Soon after completing a measurement of the constant to two percent precision, Birrer started thinking of a “way to redo the experiment using much weaker theoretical assumptions,” Treu wrote in an email. “This was a very brave thing to do, as the dust had not settled yet on the first measurement and he questioned everything.”

The new approach required considerable effort, patience and dedication.

Birrer was “motivated uniquely by his intellectual honesty and rigor,” Treu added. “He wanted to know the answer and he wanted to know if it was robust to this new approach.”

Indeed, researchers are still executing this new measurement, which means that Treu and others don’t know how the next chapter in this search. This approach will, however, lead to greater confidence in whatever figure they find.

Larger collaborations

Simon Birrer. Photo by Rebecca Ross

Birrer is a part of numerous collaborations that involve scientists from Europe, Asia, and Middle and South America.

He contributes to the Legacy Survey of Space and Time (LSST). A planned 10-year survey of the southern sky, the Vera C. Rubin Observatory is under construction in northern Chile.

The Simonyi Survey Telescope (SST) at the observatory will survey half the sky every three nights. It will provide a movie of that part of the sky for a decade.

The telescope and camera are expected to produce over 5.2 million exposures in a decade. In fewer than two months, a smaller commissioning camera will start collecting the first light. The main camera will start collecting images within a year, while researchers anticipate gathering scientific data in late next year or early in 2026.

The LSST is expected to find more strong gravitational lensing events, and in particular strongly lensed supernovae, than any prior survey.

Birrer is the co-chair of the LSST Strong Lensing Science Collaboration and serves on the Collaboration Council of the LSST Dark Energy Science Collaboration.

Birrer is also a part of the Dark Energy Survey, which was a predecessor to LSST. Researchers completed data taking a few years ago and are analyzing that information.

From mountains to the island

Born and raised in Lucerne, Switzerland, Birrer, who speaks German and the Swiss dialect, French and English, found physics and sociology appealing when he was younger.

“I was interested in how the world works,” he said.

While attending college at ETH Zurich in Switzerland, he became eager to address the numerous unknown questions in cosmology and astrology.

“How little we know about” these fields “dragged me in that direction,” said Birrer.

An avid skier, mountaineer and soccer player, Birrer bikes the five miles back and forth to work from Port Jefferson.

In addition to adding a talented scientist, Stony Brook also brought on board an effective educator.

Birrer is “knowledgeable and caring, patient and at the same time, he knows how to challenge people to achieve their best,” Treu explained. “I am sure he will be a wonderful addition to the faculty and he will play a leading role in training the next generation of scientists.”

In terms of the advice he found particularly helpful in his career, Birrer suggested he needed a nudge to combine his passion for theory with the growing trove of available data. His PhD advisor told him to “touch the data,” he said. The data keeps him humble and provides a reality check.

The friction between thought and data “leads to progress,” Birrer added. “You never know whether the thoughts are ahead of the experiments (data) or whether the experiments are ahead of the thoughts.”

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Dr. Alexander Orlov. Photo by John Griffin/SBU

Alexander Orlov recognized for contributions to the AIChE’s division dedicated to promoting research, education and innovation related to the design of creative engineering solutions to environmental challenges

Alexander Orlov, PhD, Professor in the Department of Materials Science and Chemical Engineering in the College of Engineering and Applied Sciences at Stony Brook University, is the recipient of the American Institute of Chemical Engineers’ (AIChE) Dr. Peter. B. Lederman Environmental Division Service Award.

The award recognizes outstanding service to the Environmental Division the AIChE. The AIChE has more than 60,000 members from more than 110 countries and is the world’s leading organization for chemical engineering professionals.

Orlov will receive the award during the AIChE’s annual meeting, which takes October 27 to 31 at the Convention Center in San Diego.

As an integral member of the AIChE, Orlov initiated fundraising and outreach efforts for the Environmental Division that helped to double its annual budget. His leadership led to a substantial increase in the Division’s membership. Both efforts led to his nomination for the service award.

Orlov is currently Co-Chair of the AIChE’s Sustainable Engineering Forum (SEF) Education Committee and an Institute for Sustainability Board Member. Previously, the Institute recognized Orlov for his education and commercialization efforts with the 2017 SEF Education Award and the 2021 AIChE SEF Industrial Practice Award.

In addition to his departmental faculty position at Stony Brook, Orlov is a faculty member of the Consortium for Interdisciplinary Environmental Research, and an affiliate faculty member of the Chemistry Department and the Institute for Advanced Computational Science. He also serves as a Co-Director of the Center for Laser Assisted Advanced Manufacturing and Center for Development and Validation of Scalable Methods for Sustainable Plastic Synthesis and Processing.

Orlov received his PhD in Chemistry from the University of Cambridge. He has been teaching and conducting research at Stony Brook University since 2008.

 

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Daniel Marx in front of one of the magnets at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. Photo courtesy of BNL

By Daniel Dunaief

In a world filled with disagreements over everything from presidential politics to parking places, numbers — and particularly constants — can offer immutable comfort, as people across borders and political parties can find the kind of common ground that make discoveries and innovations possible.

Many of these numbers aren’t simple, as anyone who has taken a geometry class would know. Pi, for example, which describes the ratio of the circumference of a circle to its diameter, isn’t just 3 or 3.14.

In classes around the world, people challenge their memory of numbers and sequences by reciting as many digits of this irrational number as possible. An irrational number can’t be expressed as a fraction.

These irrational numbers can and do inform the world well outside of textbooks and math tests, making it possible for, say, electromagnetic radiation to share information across a parallel world or, in earlier parlance, the ether.

“All electronic communication is made up of waves, sines and cosines, that are defined and evaluated using pi,” said Alan Tucker, Toll Distinguished Teaching Professor in the Department of Applied Mathematics and Statistics at Stony Brook University. The circuits that send and receive information are “based on calculations using pi.”

Scientists can receive signals from the Voyager spacecraft, launched in 1977 and now over seven billion miles away, thanks to the ability to tune a circuit using math that relies on pi and numerous mathematical formulas where the sensitivity to the signal is infinite.

The signal from the spacecraft, which is over 16 years older than the average-aged person on the planet, takes about 10 hours to travel back and forth.

“Think of 1/x, where x goes to 0,” explained Tucker. “Scientists have taken that infinity to be an infinite multiplier of weak signals that can be understood.”

Closer to Earth, the internet, radio waves and TV, among myriad other electronic devices, all use generated and decoded calculations using pi.

“All space has an unseen mathematical existence that nobody can see,” said Tucker. “These are heavily based on calculations involving pi.”

Properties of nature

Constants reflect the realities of the world. They have “a property that is fundamental and absolute and that no one could change,” said Steve Skiena, Distinguished Teaching Professor of Computer Science at Stony Brook University. “The reason people discovered these constants as being important is because they are relating things that arise in the world.”

While pi may be among the best known and most oft-discussed constant, it’s not alone in measuring and understanding the world and in helping scientists anticipate, calculate and understand their experiments.

Chemists, for example, design reactions using a standard unit of measure called the mole, which is also called Avogadro’s number for the Italian physicist Amedeo Avogadro.

The mole provides a way to balance equations, enabling chemists to determine exactly how much of each reactant to combine to get a specific amount of product.

This huge number, which is often expressed as 6.022 times 10 to the 23rd power, represents the number of atoms in 12 grams of carbon 12. The units can be electrons, ions, atoms or molecules.

“Without Avogadro’s number, it would be impossible to determine the ratio of particular reactants,” said Elliot Smith, a postdoctoral researcher at Cold Spring Harbor Laboratory who works in John Moses’s lab. “You could take an educated guess, but you wouldn’t get good results.”

Smith often uses millimoles, or 1/1000th of a mole, in the chemical reactions he does.

“If we know the millimoles of each reactant, we can calculate the expected yield,” said Smith. “Without that, you’re fumbling in the dark.”

Indeed, efficient chemical reactions make it possible to synthesize greater amounts of some of the pharmaceutical products that protect human health.

Moles, or millimoles, in a reaction also make it possible to question why a result deviated from expectations. 

Almost the speed of light

Physicists use numerous constants.

“In physics, it is inescapable that you will have to deal with some of the fundamental constants,” said Alan Calder, Professor of Physics and Astronomy at Stony Brook University.

When he models stellar explosions, he uses the speed of light and Newton’s gravitational constant, which relates the gravitational force between two objects to the product of their masses divided by the square of the distance between them.

The stars Calder studies are gas ball reactions that also involve constants.

Stars have thermonuclear reactions going on in them as they evolve. Calder uses reaction rates that depend on local conditions like temperature, but there are constants in these.

Calder’s favorite number is e, or Euler’s constant. This number, which is about 2.71828, is useful in calculating interest in a bank account as well as in understanding the width of successive layers in a snail shell among many other phenomena in nature.

Electron Ion Collider

The speed of light figures prominently in the development and calculations at Brookhaven National Laboratory as the lab prepares to build the unique Electron Ion Collider, which is expected to cost between $1.7 billion and $2.8 billion.

The EIC, which will take about 10 years to construct, will collide a beam of electrons with a beam of ions to answer basic questions about the atomic nucleus.

“It’s one of the most exciting projects in the world,” said Daniel Marx, an accelerator physicist in the Electron Ion Collider accelerator design group at BNL.

At the EIC, physicists expect to propel the electrons, which are 2,000 times lighter than protons, extremely close to the speed of light. In fact, they will travel at 99.999999 (yes, that’s six nines after the decimal point) of the speed of light, which, by the way, is 186,282 miles per second. That means that light can circle the globe 7.48 times per second.

The EIC will increase the energy of ions to 99.999% of the speed of light. With only three nines after the decimal, the protons will be traveling at a slower enough speed that the designers of the collider will make the proton ring about 4 inches shorter over 2.4 miles to ensure that the protons and electrons arrive at exactly the same time.

The EIC will attempt to answer questions about the mass and spin of the nucleus. They hope to understand what happens with dense systems of gluons. By accelerating nuclei or protons to higher energies, they will get more gluons and will look for evidence of gluon saturation.

“The speed of light is absolutely fundamental to everything we do,” said Marx because it is fundamental to relativity and the particles in the accelerator are relativistic.

As for constants, Marx suggested that its value might look like a row of random numbers, but if those numbers are a bit different, that could “revolutionize” an understanding of physics.

In addition to a detailed understanding of atomic nuclei, the EIC could also lead to new technologies.

When JJ Thomson discovered the electron, he toasted it by saying, “may it never be of use to anyone.” That, however, is far from the case, as the electron is at the heart of electronics.

As for pi, Marx, like many of his STEM colleagues, appreciates this constant.

“Once you look at the mathematical statement of pi, and how it relates in various ways to other quantities in math and physics, it deepens your appreciation of how beautiful the whole universe is,” Marx said.

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