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Jessica Liao
Aidan Wallace
Michael Coppi
Sophia Borovitkova

Jessica Liao, a junior at Ward Melville High School in East Setauket, garnered the top spot in the 2020 Model Bridge Building Contest, held virtually and broadcast online for the first time this year by the U.S. Department of Energy’s Brookhaven National Laboratory. 

Students from 17 Nassau and Suffolk County high schools designed and constructed a total of 190 model bridges intended to be simplified versions of real-world bridges. In this contest, efficiency is calculated from the bridge’s weight and the weight the bridge can hold before breaking or bending more than one inch. The higher the efficiency, the better the design and construction.

Student competitors typically bring their bridges to the Lab to be tested. But for this year’s competition, to help maintain social distance during the developing coronavirus pandemic, engineers at Brookhaven ran the tests and broadcast them to the students virtually.

Liao beat out the competition by building a bridge that weighed 17.25 grams and supported 59.44 pounds. Her bridge had an efficiency of 1562.98, the number of times its own weight the bridge held before breaking or bending more than one inch.

Aidan Wallace, a junior from Walt Whitman High School placed second with a bridge that weighed 17.54 grams, held 51.01 pounds, and had an efficiency of 1319.14.

Third place went to junior Michael Coppi from Ward Melville High School. Coppi’s bridge weighed 9.02 grams, held 25.01 pounds, and had an efficiency of 1271.77.

Sophia Borovikova, a senior from Northport High School won the aesthetic award for the best-looking bridge. Her bridge took 10th place in the contest, weighing 16.17 grams and holding 33.29 pounds for an efficiency of 933.83.

The construction and testing of model bridges promotes the study and application of principles of physics and engineering and helps students develop “hands-on” skills, explained Ken White, manager of Brookhaven Lab’s Office of Educational Programs. Students get a flavor of what it is like to be engineers, designing structures to a set of specifications and then seeing the bridges they build perform their function.

“These same skills are put to the test for the Lab’s engineers on projects like the National Synchrotron Light Source II and the Relativistic Heavy Ion Collider, both world-class research tools that operate as DOE Office of Science user facilities for scientists from all across the world, and the upcoming Electron-Ion Collider,” said White. “Preparing the next generation of engineers to work on projects like these is important to the Lab and the Department of Energy.”

Brookhaven Lab’s Office of Educational Programs coordinated the Regional Model Bridge Building Contest. Now, the two top winners — Liao and Wallace — are eligible to enter the 2020 International Bridge Building Contest in May. For this year’s contest, contestants will mail their bridges to the Illinois Institute of Technology in Chicago, where university faculty and engineers will run the breakage tests and post the results online.

Prior to COVID-19-related school closures on Long Island, Gillian Winters, a science teacher from Smithtown High School East, conducted a bridge competition in her classroom to help students prepare for the contest at Brookhaven. She also built a bridge of her own to compete among students.

“My favorite part is to see the creativity the kids can come up with because they’re all very different,” Winters said. “Some of them have a pretty straightforward way of doing things, and some of them want to put a new twist on things. I love to see how they develop, and by the end, they really have learned a little bit about how to follow the instructions and what a specification really means.”

Borovikova said she plans to pursue civil and environmental engineering or mechanical engineering after graduation. “I really enjoyed the creative process — trying to figure out all of the different parts that are going to come together to form the bridge,” she said. “Designing the bridge was actually a pretty quick process for me because I like to try to imagine concepts right off the top of my head. Then actually letting the bridge come to fruition was really interesting for me, because I saw my design come to life.”

Wallace said he spent many hours creating his bridge and making sure it would qualify. “From this contest, I have learned more about hands-on building and the engineering of bridges,” he said. “I was happy with my results, but of course would have liked to place first!”

The award ceremony for the competition is currently pending, but the Lab hopes to hold it before the end of the academic year, according to Susan Frank, the competition coordinator and educator at the Lab’s Science Learning Center. For more information, please visit www.science.energy.gov.

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SBU Professor Malcolm Bowman teaches an online course from his 'office' in a camper in New Zealand during the coronavirus pandemic.
The ultimate in remote teaching: 9,000 miles from the classroom

By Daniel Dunaief

Halfway between where they grew up and their home in Stony Brook, Malcolm and Waveney Bowman had a choice to make: venture back northeast to New York, which was in the midst of a growing coronavirus crisis or return southwest to New Zealand, where the borders were quickly closing.

The couple chose New Zealand, where their extended family told them not to dare visit. The Do Not Enter sign wasn’t as inhospitable as it sounded.

Malcolm Bowman, a Distinguished Service Professor at Stony Brook University’s School of Marine and Atmospheric Sciences, recognized that he could continue to teach three courses from a great distance, even a camper on a small stretch of land in the northwest part of the Coromandel Peninsula in New Zealand.

“We could be anywhere on the planet,” Malcolm suggested to his wife. “Why don’t we see if we can set up camp?”

Climbing aboard the last plane out of Honolulu before New Zealand closed its borders, the Bowmans didn’t have much of a welcoming party when they arrived at the airport. Their family told them, “We love you, but you can’t come anywhere near us,” Malcolm recalled. “Coming from the states, you could be infected.”

If his family took the American couple in, they would have had to report the contact, which would have forced Waveney’s brother and his wife, Derek and Judy Olsson, into personal isolation for two weeks.

Derek filled the trunk of an old car with food and left the key under the front tire. The Stony Brook couple set up a temporary living space in two campers on a small piece of land in the middle of the night, where they have been living for over a month. All told, their 235 square feet of living space is about 12% of the size of their Long Island home.

The country has been in lockdown, where people are practicing social distancing and are limiting their non-essential outings.

Malcolm realized he had to “rise to the challenge” which, in his case, literally meant climbing out of his bed at all hours of the morning. New Zealand is 16 hours ahead of New York, which means that he had to be awake and coherent at 2 a.m. on Tuesday morning in New Zealand to teach a course that meets at 10 a.m. on Monday morning on Long Island.

With a cell tower up the hill behind their camper, the Bowmans could access the internet. While they had shelter, they still needed electricity. Fortunately, Malcolm’s brother Chris, who is an engineer, provided solar panels to generate electricity.

Living south of the equator means the Bowmans are heading into winter in New Zealand, where the days are shorter and the sun is lower in the sky, which makes the solar panels that provide electricity less effective. Malcolm describes the biggest challenges as the “time difference and mosquitoes.”

In a typical day, the professor rises at 4 a.m. or earlier local time to teach his classes, participate in online seminars, attend University Senate and other committee meetings, continue his research and take care of his students, all through Google Meet and Zoom. He co-teaches Physics for Environmental Studies, Contemporary Environmental Issues and Polices and Advanced Coastal Physical Oceanography.

Malcolm’s favorite part of the day occurs at sunrise, when the cloud formations over Mercury Bay serve as a canvas for the colorful red and orange rays of the sun that herald the start of another day down under.

He recognizes that he and his wife’s current indefinite time in New Zealand provides them with a comfortable connection to the land of his youth, where he can enjoy some of the beaches that have made the country famous and hear the sounds of flightless birds near his camper home.

Given the focus on work early in the day, Malcolm can choose his activities in the afternoon, which include catching up on emails, reading the New York Times, cleaning up the campsite and fishing for the evening’s meal.

Even from a distance of almost 9,000 miles from New York, the Bowmans agonize with their neighbors and community members in the Empire State.

“It’s very difficult watching all the suffering, sickness, death, inadequate availability of life-saving equipment, the enormous stress health care workers are under and the loss of income for many families,” Bowman explained in an email. “Our eldest daughter Gail is a medical worker at the Peconic Bay Medical Center in Riverhead so she is fighting at the front line. Very exhausting work.”

The Bowmans, who are naturalized American citizens, have no idea when international flights will resume from New Zealand.

A retired elementary school teacher who taught at the Laurel Hill School in Setauket for 34 years, Waveney wears a mask when she visits a large supermarket that is 12 miles away once a week. Malcolm, who also goes to the supermarket, said the store only allows one family member per visit.

As New Zealand natives, the Bowmans can live in the country indefinitely, but their intention is to return to Stony Brook as soon as possible.

Even though the shorter daylight hours and rainy days lower the amount of power the Bowmans can collect from their solar panels, the couple loves the outdoors. They have camped with their four children during summers in the hills of New Hampshire and Vermont and have both been involved with scouting activities, which emphasizes self sufficiency and living close to nature.

As a former amateur radio enthusiast, Malcolm is also adept at setting up communication systems in remote settings. He offers a message of hope to Long Islanders, “You can weather this storm. If possible, work and stay home and stay isolated.”

The Bowmans have followed the advice of the 37-year old Prime Minister of New Zealand, Jacinda Ardern, who urges people to “be especially kind to each other.”

All photos courtesy of Malcolm Bowman

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Dr. Michael H. Brisman, right, receives an award from Kevin Sanders, Center for Science, Teaching, & Learning, acknowledging NSPC’s sponsorship of the nation’s first competition for high school students to focus on STEM/health science.

Sponsors of the second Neurological Surgery, P.C. Health Science Competition, a program of the Center for Science Teaching & Learning, have extended the “virtual” event’s registration deadline to noon on Thursday, May 14, to allow as many Long Island high school students to register as possible. 

“The effect of the spread of COVID-19 on everyone who lives on Long Island can’t be understated,” said Michael H. Brisman, M.D., an attending neurosurgeon and chief executive officer of Neurological Surgery, P.C. 

“It has no precedent. However, my partners and I decided that at this difficult time a declaration of hope was needed to inspire the young people in our community to continue to look to the future and take an interest in Science, Technology, Engineering, and Math (STEM) programs. That’s why the second NSPC Health Science Competition will be held as planned, but conducted online to assure  the safety of participants, judges, and educators.”

Moreover, “To allow as many students to participate as possible we’ve changed the event’s registration deadline to Thursday, May 14, from April 30,” said Brisman. Nearly 300 high schools teams have already applied to compete.

A $25 non-refundable registration fee per team applies to all entries. The NSPC HSC is available exclusively to Nassau and Suffolk high school teams. Last year, the competition drew teams from 38 Long Island schools and 50 prize winners shared $80,000 in score-based awards. The 2019 program’s finals were held on the campus of LIU/Post in Greenvale. 

To compete, teams will create a Google site and upload: 1) Images of their poster board/digital poster board or a <20 slide PowerPoint presentation; 2) A 10 minute video in which team members can be seen explaining their project, and 3) All executed competition documents. 

Further information about how to construct a Google site and other application requirements are available online at www.cstl.org/nspc. Entries must be received by 4 p.m. (EST) on Wednesday, May 27. Results to be announced and live streamed on Monday, June 15.

Student teams will be judged in one of five categories: Behavioral Sciences; Biology-Medicine/Health; Biology-Microbiology/Genetics; Health Related Biochemistry/Biophysics, and Bioengineering and Computational Biology. The five first place winners in last year’s competition were Feyi Rufai of Roslyn High School, Alessi Demir of Manhasset High School, Michael Lawes of Elmont Memorial High School, Jason Sitt of Lynbrook Senior High School, and Christopher Lu of John L. Miller Great Neck North High School. Each first place winner received a $5,500 prize. The exact breakdown of prizes can be found at www.cstl.org/nspc/hsc-prizes/.

“The young people who were part of the first competition were brilliant and inspiring. Their understanding of medicine and health-related subjects was impressive. These students are exactly the people we need to address the high demand for STEM, health science, and healthcare-related jobs here on Long Island and across the nation. The first NSPC Health Science Competition (HSC) exceeded our goals in terms of the number of schools and students who competed,” said Brisman. 

“I believe the 2020 ‘virtual’ competition will further motivate both those who participate and others, who observed these innovative young people, to pursue their interest and careers in healthcare and related sciences,” he added.

For more information about the NSPC Health Science Competition, complete competition rules, and deadlines, please visit www.cstl.org/nspc or call 516-764-0045.

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Mikala Egeblad with a blown-up image of a neutrophil extracellular trap, or NET. Photo from CSHL

By Daniel Dunaief

Mikala Egeblad couldn’t shake the feeling that the work she was doing with cancer might somehow have a link to coronavirus.

Egeblad, who is an Associate Professor and cancer biologist at Cold Spring Harbor Laboratory, recently saw ways to apply her expertise to the fight against the global pandemic.

She studies something called neutrophil extracellular traps, which are spider webs that develop when a part of the immune system triggered by neutrophil is trying to fight off a bacteria. When these NETs, as they are known, are abundant enough in the blood stream, they may contribute to the spread of cancers to other organs and may also cause blood clots, which are also a symptom of more severe versions of COVID-19, the disease caused by the coronavirus, which has now infected over two million people worldwide.

“I always felt an urgency about cancer, but this has an urgency on steroids,” Egeblad said.

Cold Spring Harbor Laboratory reached out to numerous other scientists who specialize in the study of NETs, sometimes picking up on the tweets of colleagues who wondered in the social networking world whether NETs could contribute or exacerbate the progression of Covid19.

Egeblad started by reaching out to two scientists who tweeted, “Nothing about NETs and Covid-19?” She then started reaching out to other researchers.

“A lot of us had come to this conclusion independently,” she said. “Being able to talk together validated that this was something worth studying as a group.”

Indeed, the group, which Egeblad is leading and includes scientists at the Feinstein Institutes for Medical Research and the Research Institute of the McGill University Health Centre, published a paper last week in the Journal of Experimental Medicine, in which they proposed a potential role for NETs.

“We are putting this out so the field doesn’t overlook NETs,” said Egeblad, who appreciated the support from Andrew Whiteley, who is the Vice President of Business Development and Technology Transfer at CSHL.

With a range of responses to the coronavirus infection, from people who have it but are asymptomatic all the way to those who are battling for their survival in the intensive care units of hospitals around the world, the biologist said the disease may involve vastly different levels of NETs. “The hypothesis is that in mild or asymptomatic cases, the NETs probably play little if any role,” she said.

In more severe cases, Egeblad and her colleagues would like to determine if NETs contribute or exacerbate the condition. If they do, the NETs could become a diagnostic tool or a target for therapies.

At this point, the researchers in this field have ways of measuring the NETs, but haven’t been able to do so through clinical grade assays. “That has to be developed,” Egeblad explained. “As a group, we are looking into whether the NETs could come up before or after symptoms and whether the symptoms would track” with their presence, she added.

To conduct the lab work at Cold Spring Harbor, Egeblad said her team is preparing to develop special procedures to handle blood samples that contain the virus. 

As the lead investigator on this project, Egeblad said she is organizing weekly conference calls and writing up the summaries of those discussions. She and the first author on the paper Betsy J. Barnes, who is a Professor at the Feinstein Institute, wrote much of the text for the paper. Some specific paragraphs were written by experts in those areas.

At this point, doctors are conducting clinical trials with drugs that would also likely limit NET formation. In the specific sub field of working with this immune-system related challenge, researchers haven’t found a drug that specifically targets these NETs. 

If the study of patient samples indicates that NETs play an important role in the progression of the disease, particularly among the most severe cases, the scientists will look for drugs that have been tried in humans and are already approved for other diseases. This would create the shortest path for clinical use.

Suppressing NETs might require careful management of potential bacterial infections. Egeblad suggested any bacterial invaders might be manageable with other antibiotics.

NETs forming in airways may make it easier to get bacterial infections because the bacteria likes to grow on the DNA.

Thus far, laboratory research studies on NETs in COVID-19 patients have involved taking samples from routine care that have been discarded from their daily routine analysis. While those are not as reliable as samples taken specifically for an analysis of the presence of these specific markers, researchers don’t want to burden a hospital system already stretched thin with a deluge of sick patients to provide samples for a hypothetical pathway.

Egeblad and her colleagues anticipate the NETs will likely be more prevalent among the sicker patients. As more information comes in, the researchers also hope to link comorbidities, or other medical conditions, to the severity of COVID-19, which may implicate specific mechanisms in the progression of the disease.

“There are so many different efforts” to understand what might cause the progression of the disease, Egeblad said. “Everybody’s attention is laser focused.” A measure that is easy to study, such as this hypothesis, could have an impact and “it wouldn’t take long to find out,” she added. Indeed, she expects the results of this analysis should be available within a matter of weeks.

Egeblad believes the NETs may drive mucus production in the lungs, which could make it harder to ventilate in severe cases. They also may activate platelets, which are part of the clotting process. If they did play such a role, they could contribute to the blood clotting some patients with coronavirus experience.

Egeblad recognizes that NETs, which she has been studying in the context of cancer, may not be involved in COVID-19, which researchers should know soon. “We need to know whether this is important.”

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From left, Kerstin Kleese van Dam, Brand Development Manager at BNL Diana Murphy, and John Hill at the Practical Quantum Computing Conference (Q2B) in San Jose, CA, Dec. 2019. Photo courtesy of Kerstin Kleese van Dam

By Daniel Dunaief

Brookhaven National Laboratory is putting its considerable human and technical resources behind the global effort to combat the coronavirus.

John Hill, the director of the National Synchrotron Lightsource II, is leading a working group to coordinate the lab’s COVID-19 science and technology initiatives. He is also working on a team to coordinate COVID-19 research across all the Department of Energy labs.

“We are proud that the tools we built at BNL, which include the NSLS II, which took 10 years to build and cost about a billion dollars,” will contribute to the public health effort, Hill said. “We feel that science will solve this problem, and hopefully soon. It’s great that BNL is a part of that fight.”

In addition to using high-technology equipment like the NSLS II to study the atomic structure of the virus and any possible treatments or vaccines, BNL is also engaging a team led by Kerstin Kleese van Dam, who is the director of BNL’s Computational Science Initiative.

According to Hill, the combination of the physical experiments and the computing expertise will provide a feedback loop that informs the efforts with each team. Kleese van Dam’s team is using supercomputers to run simulated experiments, matching up the atomic structure of the viral proteins with any potential drugs or small molecules that might interfere with its self-copying and life-destroying efforts.

The computer simulations will enable researchers to narrow down the list of potential drug candidates to a more manageable number. Experimental scientists can then test the most likely  treatments the computer helped select.

Across the world, the scale of the science to which BNL is contributing is even larger than the Manhattan Project that led to the creation of the atomic bomb during World War II, said Hill.

In just three months since scientists in China produced the genetic sequence of the coronavirus, researchers around the world have produced over 15,000 research articles, some of which have been published in scientific journals, while researchers have self-published others to share their findings in real time.

Working with computer scientists from different fields at BNL, Kleese van Dam is helping researchers screen through the abundant current research on COVID-19. The number of papers is “accelerating at a rate no one can read,” Hill explained. 

Kleese van Dam and four of her scientists are setting up a natural language processing interface so scientists can type in what they want to find, such as a protein binding with a specific complex, and put it into a search engine. She is working on an initial service that she hopes to expand. Additionally, the computer science team is planning to start a project to look at epidemiological data to determine how various people might react to different treatment.

Kleese van Dam and her team are also working to build an archive in the United States that they hope will host at least the results of the Department of Energy funded projects in medical therapeutics. “[We are] convinced that this would provide a much better starting point for future outbreaks, as well as providing a near term clearing house of results,” she explained in an email.

As for the work at the synchrotron, Hill said that the high-energy x-rays can determine the specific atomic configuration of proteins in the virus.

The NSLS II, which was designed to study the structure of batteries, geology and plant cells, among other objects, can look at “small protein crystals better than anywhere else in the world.”

The virus relies on a docking mechanism that allows it to enter a cell and then insert its malevolent RNA to disrupt the cell’s normal function. Understanding how the pieces come together physically can allow researchers to look for small molecules or approved drugs that could interfere with the virus.

One of the many advantages of the synchrotron over protein crystallography is that the NSLS II doesn’t need as many copies of proteins to determine their atomic structure. Hill said protein crystallography needs samples that are about 100 to 200 microns in size, which is about the width of a human hair, which can take weeks to months to years to grow. This is a “bottleneck in the whole process” of solving protein structure, he said.

On the other hand, the NSLS II only requires samples of about a micron in size. This “greatly speeds up the process,” he added. Two different groups of researchers, from the pharmaceutical industry and from academia and national labs, are conducting experiments on the NSLS II.

Hill said he was receiving viral proteins scientists believe will bind with the virus from collaborators in the United Kingdom. The scientific process is as quick and collaborative as it’s ever been among researchers, he said. The proteins arrived recently.

That collaborative process would have “taken months to set up under normal circumstances,” Hill said. Instead, it only took a few days.

At the same time, BNL is constructing a cryo-electron microscope, which doesn’t have the same resolution as the NSLS II, but does not need crystals and can study individual proteins. Researchers need about 10,000 of them and can average the images together. The resolution is five to 10 times worse than x-rays.

BNL is accelerating the construction of the cryo EM and hope to have the first beam in mid-May. Commissioning will take some extra time, Hill said. The first structure of the coronavirus spike protein was determined by using an electron microscope.

For Hill and Kleese van Dam, who each have dedicated much of their time to these efforts, the opportunity to contribute to a project that could have implications for a public that is battling this disease is rewarding and offers reasons for optimism. 

“To be able to help at such a scale is indeed humbling and gratifying,” said Kleese van Dam. “Science is going to solve this problem,” added Hill. “That gives me comfort.”

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Daniel Mazzone. Photo courtesy of BNL

By Daniel Dunaief

Like many people who hunch down when they step into cold air, many materials shrink when exposed to the frigid temperatures.

That, however, is not the case for samarium sulfide when it has impurities such as yttrium sprinkled throughout. Indeed, the material goes through negative thermal expansion, in which cold air causes it to expand.

Daniel Mazzone, a post-doctoral fellow in Brookhaven National Laboratory’s Condensed Matter Physics and Materials Science Department who is joining the Paul Scherrer Institute in May, wanted to know how this happened.

Working with synchrotrons on three different continents, at the National Synchrotron Lightsource II at BNL, the Soleil synchrotron in France and the SPring-8 synchrotron in Japan, Mazzone and a team of scientists explored the properties of this metal.

The work that led to an understanding of the properties that made the metal expand in cold temperatures could have applications in a range of industries. Some companies use materials that balance between expansion and contraction to prevent the lower temperatures from altering their configuration. 

Mazzone said the expansion properties can be fine tuned by altering the mixture of materials. With these results, he and his colleagues “bring a new material class to the focus of the community,” he wrote in a recent email.

So, what is happening with this samarium sulfide mixed with yttrium particles?

In a paper in the journal Physics Review Letters, Mazzone and his partners, including Ignace Jarrige, who is the group leader of the Soft Inelastic X-ray Scattering Beamline, described the way mobile conduction electrons screen the samarium ions, causing a fractional transfer of an electron into the outermost electronic samarium shell. Quantum mechanical rules govern the process.

Using the Pair Distribution Function beamline at NSLS-II, the researchers performed diffraction experiments. The scientists determined how the x-rays bounced off the samarium sample at different temperatures. The sample was contained in a liquid helium cooled crysotat.

“We track how the x-rays bounce off the sample to identify the locations of atoms and the distances between them,” Milinda Abeykoon, the lead scientist of the PDF beamline, said in a press release. “Our results show that, as the temperature drops, the atoms of this material move farther apart, causing the entire material to expand up to three percent in volume.”

In France and Japan, the researchers also used x-rays to explore what electrons were doing as temperatures changed.

“These ‘x-ray absorption spectroscopy’ experiments can track whether electrons are moving into or out of the outermost ‘shell’ of electrons around the samarium atoms,” Jarrige explained in a press release.

The valence electrons in samarium, which are the outermost electrons, are in a shell that is under half full. That means that they are more reactive than they would be if they the shell was full, as it is with noble gases.

The researchers observed that a fractional part of the electrons are transferred from the conduction band in the outermost samarium shell. This causes the samarium to expand, as the outermost shell needs to accommodate an extra electron. When this happens for the numerous ions in the system, this can have an important effect.

By working with Maxim Dzero, who is a theoretical physicist at Kent State University, the scientists were able to apply the Kondo effect, which was named after solid-state physicist Jun Kondo. Back in the 1960s, Kondo explained how magnetic impurities encourage electron scattering at low temperatures, which not only increases the volume of the materials, but can also increase their electrical resistance.

In the Kondo effect, electrons align their spins in the opposite direction of the larger magnetic articles to cancel its magnetism. For the samarium material, the outer shell moves around the atomic core, creating the magnetic moment of the samarium ion. 

“For some elements, because of the way the outer shell fills up, it is more energetically favorable for electrons to move out of the shell,” Jarrige explained in a press release. “But for a couple of these materials, the electrons can move in, which leads to expansion.”

A phone call among several of the collaborators led them to believe the process involved with the samarium was akin to the one that causes water to expand when it freezes. As scientists build on this understanding, they will likely need to create or search for similar but alternative materials to samarium sulfide, Mazzone said. 

Samarium sulfide is incredibly expensive. Materials scientist will need to find the right elements that can “do the same job,” he explained. “The next step is to find the materials that are cheaper and optimize it.”

Mazzone, who is currently living in his home country of Switzerland, is preparing for his next job, which is expected to start next month.

He and his wife Fabienne, who is an economist at the ski producer Stöckli, enjoyed living on Long Island during his two year post-doctoral research experience.

“Switzerland is landlocked and surrounded by mountains,” said Mazzone, who speaks German, French, English and some Italian. “Having a beach at the front door [when they lived on Long Island] was beautiful.”

Dedicated climbers, the Mazzones traveled to the Shawangunk and Adirondack mountains while they lived on Long Island to find an outlet for their passion for rock climbing.

As for his future work, Mazzone anticipates remaining in academia where he would like to continue his research and teach. He plans to conduct additional experiments on the Kondo effect. These materials also feature properties such as unconventional superconductivity and other quantum phases that may help with quantum computing.

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Lijun Wu is the 17th recipient of this esteemed award. Photo courtesy of BNL

By Daniel Dunaief

Despite the pause New York and so many other states are taking to combat the coronavirus, the awards can, and will, go on.

The Microscopy Society of America gave Brookhaven National Laboratory’s Lijun Wu the 2020 Chuck Fiori Award. The Award, which started in 1993, recognizes the achievements of a technologist in the physical sciences who has made long-standing contributions in microscopy or microanalysis.

Wu is the second consecutive BNL staff member to win the Chuck Fiori award. Dmitri Zakharov took home the honors last year.

Lijun Wu during a trip to Alaska last summer. Photo from Jiangyan Fang

Wu is an engineer in the Electron Microscopy and Nanostructure Group in the Condensed Matter Physics and Materials Science Division. He works with transmission electron microscopy in quantum materials, batteries, catalysts, and other energy materials. Wu learned how to write software programs on his own. His first effort in this area involved a program that indexed electron diffraction patterns. He has also created programs for simulating microscopy images and diffraction patterns.

Wu, who is hoping to pick up the award at the Microscopy Society of America meeting in August if the meeting still takes place, said he was “excited” to receive this distinction and was pleased for the support throughout his career at BNL.

Wu “has made significant contributions to the field of electron microscopy, especially quantitative electron diffraction,” group leader and senior scientist Yimei Zhu, said in a statement. “Applying his expertise in the field and talents in computer programming, [he] has advanced electron microscopy for material characterization. He well deserves the award.”

One of the most important contributions Wu, who has been at BNL since 1996, has made was in developing an electron diffraction method for measuring valence electron distribution. The valence electrons are the ones in the outermost shell of any substance or material.

Wu worked with Zhu and Johan Taftø, a visiting scientist from the University of Oslo, to develop an electron diffraction–based method for measuring valence electron distribution.

He appreciates the support and encouragement he has received from Zhu since he arrived at BNL.

Transmission electron microscopes can provide atomic-resolution images and electron-energy loss spectroscopy, Wu suggested. Through this work, scientists can determine where atoms are and what kind of atoms are present.

He would like to measure the distribution of these valence electrons through a process called quantitative electron diffraction.

By understanding how atoms share or transfer electrons, researchers can determine the physical properties of materials. Electron diffraction measurements can describe valence electron distribution from the bonds among atoms.

Wu and his colleagues developed a method called parallel recording of dark-field images. Through this technique, the scientists focus a beam above the sample they are studying and record numerous reflections from the same area. This is like studying the partial reflection of objects visible in windows on a city street and putting together a composite, three-dimensional view. Instead of cars, people, traffic lights and dog walkers, though, Wu and his colleagues are studying the distribution of electrons.

The information the scientists collect allows them to measure the charge transfer and aspherical valence electron distribution, which they need to describe electron orbitals for objects like high-temperature superconductors.

Using an electron probe, the team developed the technique to measure the displacement of atoms in crystal lattices with one-thousandth-of-a-nanometer accuracy.

To learn how to write software, Wu used several resources.

“I used literature and read books for computer programming,” he said. “I spent many, many years” learning how to write programs that would be useful in his research. He also consulted with colleagues, who have written similar programs.

Wu explained that the calculations necessary for his work far exceeded the functionality of a calculator. He also needed a super computer to handle the amount of data he was generating and the types of calculations necessary.

“If we used the older computer technique, it would take days or weeks to get one result,” he said.

A native of Pingjing in Hunan Province in China, Wu said learning English was considerably more challenging than understanding computer programming.

The youngest of nine siblings, Wu is the only one in the family who attended college. When he began his studies at the prestigious Shanghai Jiao Tong University, he said he was interested in physics and computers.

The college, however, decided his major, which was materials science.“They assigned it to me,” Wu said. “I liked it.”

He and his wife Jiangyan Fang, who is an accountant, have a 25-year-old son David, who lives in Boston and works with computers.

Wu, who started out at BNL as a Visiting Scientist, said he is comfortable living on Long Island. He said Long Island is cooler than his home town in the middle of China, where it’s generally hotter and more humid. For a week or two each year, the temperature can climb above 104 degrees Fahrenheit.

As for his work, Wu said he looks at the atomic level of substances. His techniques can explore how a defect in something like a battery affects how ions, like lithium, get in and through that.

“When you charge or discharge a battery, [I consider] how an electron gets through a defect. I always think about it this way.”

Wu has been working with Zhu and visiting scientist Qingping Meng from Shanghai Jiao Tong University, where Wu earned his Bachelor’s of Science and his Master’s in Science, on an initiative that advances the ability to determine valence electron distribution.

Wu is preparing a new publication. “I’m writing the manuscript and will introduce the method we are developing,” he said.

 

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SBU team member Steve Forrest scales the rock face as chinstrap penguins look on. Photo by Christian Åslund

By Daniel Dunaief

The canary in the Arctic coal mines, chinstrap penguins need more ice. These multitudinous flightless birds also depend on the survival and abundance of the krill that feed on the plankton that live under the ice.

With global warming causing the volume of ice in the Antarctic to decline precipitously, the krill that form the majority of the diet of the chinstrap penguin have either declined or shifted their distribution further south, which has put pressure on the chinstrap penguins.

Indeed, at the end of December, a team of three graduate students (PhD students in Ecology and Evolution Alex Borowicz and Michael Wethington and MS student in Marine Science Noah Strycker) from the lab of Heather Lynch, who recently was promoted to the inaugural IACS Endowed Chair of Ecology & Evolution at Stony Brook University, joined Greenpeace on a five week mission to the Antarctic to catalog, for the first time in about 50 years, the reduction in the number of this specific penguin species.

The team boarded Greenpeace’s ship, the Esperanza, for a five week mission. Photo by Christian Åslund

The group, which included  private contractor Steve Forrest and two graduate students from Northeastern University, “saw a shocking 55 percent decline in the chinstrap on Elephant Island,” Lynch said. That drop is “commensurate with declines elsewhere on the peninsula.”

Elephant Island and Low Island were the targets for this expedition. The scientific team surveyed about 99 percent of Elephant Island, which was last visited by the Joint Services Expedition in 1970-1971.

The decline on Elephant Island is surprising given that the conditions in the area are close to the ideal conditions for chinstraps.

In some colonies in the Antarctic, the declines were as much as 80 percent to 90 percent, with several small chinstrap colonies disappearing entirely.

“We had hoped that Elephant Island would be spared,” Lynch said. “In fact, that’s not at all the case.”

While many indications suggest that global warming is affecting krill, the amount of fishing in the area could also have some impact. It’s difficult to determine how much fishing contributes to this reduction, Lynch said, because the scientists don’t have enough information to understand the magnitude of that contribution.

The chinstrap is a picky eater. The only place the bird breeds is the Antarctic peninsula, Elephant Island and places associated with the peninsula. The concern is that it has few alternatives if krill declines or shifts further south.

“Chinstraps have been under-studied in the last few decades, in part because so much attention has been focused on the other species and in part because they nest in such remote and challenging places,” Lynch explained in an email. “I hope our findings raise awareness of the chinstraps as being in serious trouble, and that will encourage everyone to help keep an eye on them.”

While these declines over 50 years is enormous, they don’t immediately put the flightless waterfowl that tends to mate with the same partner each year on the list of endangered species because millions of the sea birds that feel warm and soft to the touch are still waddling around the Antarctic.

Researchers believe that the biggest declines may have occurred in the 1980s and early 1990s, in part because areas with more regular monitoring showed reductions during those times.

Still, where there are more recent counts to use as a standard of comparison, the declines “show no signs of abating,” Lynch explained.

The evidence of warming in the Antarctic has been abundant this year. On Valentine’s Day, the Antarctic had its hottest day on record, reaching 69.35 degrees Fahrenheit. The high in Stony Brook that day was a much cooler 56 degrees.

“What’s more concerning is the long term trends in air temperature, which have been inching up steadily on the Antarctic Peninsula since at the least the 1940’s,” Lynch wrote in an email.

At the same time, other penguin species may be preparing to expand their range. King penguins started moving into the area several years ago, which represents a major range expansion. “It’s almost inevitable that they will eventually be able to raise chicks in this region,” Lynch suggested.

The northern part of the Antarctic is becoming much more like the sub Antarctic, which encourages other species to extend their range.

Among many other environmental and conservation organizations, Greenpeace is calling on the United Nation to protect 30 percent of the world’s oceans by 2030. The Antarctic was the last stop on a pole to pole cruise to raise awareness, Lynch said.

One of the many advantages of traveling with Greenpeace was that the ship was prepared to remove trash.

“We pulled up containers labeled poison,” Lynch said. Debris of all kinds had washed up on the hard-to-reach islands.

“People are not polluting the ocean in Antarctica, but pollution finds its way down there on a regular basis,” she added. “If people knew more about [the garbage and pollution that goes in the ocean], they’d be horrified. It is spoiling otherwise pristine places.”

Lynch appreciated that Greenpeace provided the opportunity to conduct scientific research without steering the results in any way or affecting her interpretation of the data.

“We were able to do our science unimpeded,” she said.

Counting penguins on the rocky islands required a combination of counting birds and nests in the more accessible areas and deploying drones in the areas that were harder to reach. One of Lynch’s partners Hanumant Singh, a Professor Mechanical and Industrial Engineering at Northeastern University, flew the drones over distant chinstrap colonies. The researchers launched the drones from land and from the small zodiac boats.

The next step in this research is to figure out where the penguins are going when they are not in the colony. “Using satellite tags to track penguins at sea is something I’d like to get into over the next few years, as it will answer some big questions for us about where penguins, including chinstraps, are trying to find food,” Lynch said.

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Above, from left, Kenneth Kaushansky, Dean of the Renaissance School of Medicine; Anissa Abi-Dargham; Henry Tannous; Ute Moll; and Michael Bernstein, Interim President of SBU.

By Daniel Dunaief

A heart and lung doctor, a researcher who works on imaging for schizophrenia and a scientist working with a mutation that affects cancer last month received endowed inaugural chair positions at Stony Brook University.

Ute Moll is the Renaissance Endowed Professor in Cancer Biology, Anissa Abi-Dargham is the Lourie Endowed Chair in Psychiatry and Henry Tannous is the General Ting Feng Cheng Endowed Chair in Cardiothoracic Surgery.

In addition to adding the prestigious titles and winning support from local benefactors and philanthropists, the three researchers will each receive annual financial support from their positions that will sustain their research and education efforts. TBR News Media is highlighting the research from each of these standout scientists.

Ute Moll

Ute Moll

A native of Germany, Ute Moll, who is studying the six most common mutated forms of the highly researched p53 gene, is grateful for the donors, the funds and the recognition. “It’s pretty prestigious to have an endowed chair or professorship attached to your name or title,” she said 

Moll described the p53 mutations as the “most common mutation in cancer.” She has been working with a mouse model. The p53 R248 hotspot is the single most common variant in all p53 altered tumor types, which occurs in about 66,000 newly diagnosed cancer patients in the United States each year.

If these mice also have a gene called Myc, they get either liver or colon cancer. By receiving an estrogen derivative drug called Tamoxifen, which is used in breast cancer, the active, mutated version of the p53 gene is turned off when another gene called Cre recombinase is activated. By removing the p53 gene, the mice live two to three times longer than they would have.

In a typical mouse, cancer can cause over 100 tumor nodules, leaving almost no normal liver. When Moll and her colleagues turned off the mutant gene, the size of the cancer is much more limited, with only a few remaining nodules.

One particular mouse lived for more than two months, eventually dying of an unrelated lymphoma. The liver, however, which had an infection across the entire organ, didn’t show a single trace of a tumor. It was completely normal, despite the ubiquitous tumor nodules before treatment.

Thus far, targeting this mutated p53 is a concept Moll and her colleagues have developed in pre-clinical mouse models of lymphoma, colon and liver cancer, but it doesn’t yet have a clinical application. 

Liver cancer used to be relatively rare in the population, driven largely by infection from hepatitis B and hepatitis C, as well as through alcoholism. Amid an epidemic of obesity, people are developing a chronically inflammatory liver condition, which increases the incidence of liver cancer.

Anissa Abi-Dargham

Anissa Abi-Dargham

A specialist in Positron Emission Tomography (or PET) imaging for schizophrenia, Anissa Abi-Dargham is pleased with the opportunity to deploy the funds for her work at her discretion.

“The beauty of these funds is that they are totally flexible,” she explained, adding that she plans to use the funds to pursue new research ideas that might not otherwise get funding until she can use data to prove a concept or principal. 

“This is really a great honor because it means that the institution believes in you and wants to invest and retain you,” she said.

In her work, Abi-Dargham has been using imaging to see what is causing dopamine dis-regulation, either with too much or too little of the neurotransmitter. 

She is looking at two systems that may explain the imbalance: the cholinergic system and the kappa opioid system.

Abi-Dargham had been at Columbia University for 20 years before joining Stony Brook over three years ago. She appreciates the school investing in a state-of-the-art imaging center. “The people in charge of this imaging center are very much investing in promoting imaging for neuroscience and psychiatry,” she said.

Based on her findings in schizophrenia, other investigators in the United Kingdom have documented dopamine levels before schizophrenia symptoms begin.

She hopes her research discovers biomarkers that can be used to predict who is going to convert to having schizophrenia.

Patients do better when the onset of symptoms is later in their lives because their more mature brain has fostered better organized life, skill sets, and relationships.

She is also testing whether other markers, such as a neuromelanin, which is a metabolite of dopamine and binds iron-like materials, will show up on a Magnetic Resonance Imaging scan before the disease.

Henry Tannous

Henry Tannous

Henry Tannous joined Stony Brook University in 2016 and is excited to be a part of the current team and to help shape the future of clinical practice and research.

Tannous called the endowed chair position an “absolute honor.” It will not only allow him to continue with his current work, but it’s also going to enable him to expand his research. He will also use some of the funds to provide continuing education for his staff.

The financial support will allow him to hire research assistants and access national databases. Tannous and his research team of cardiothoracic and lung scientists use registries from the New York State Department of Health registry and the Society of Thoracic Surgeons, each of which provides the data for a price.

With his lung work, Tannous focuses on state 1 lung cancer. Traditionally, he said, people have received a diagnosis late in the development of the disease. Over the past few years, doctors have diagnosed patients at an earlier point.

Earlier diagnoses became more prevalent after Medicare approved lung cancer screening in 2015, which picked up more cases while patients were still in the earlier stages, when the cancer might otherwise be asymptomatic.

“We would like to know more about how the disease affects [patients] and their quality of life,” Tannous said. His lab has a collaboration with Mount Sinai Hospital to learn more about the effect of the disease on the lives of the patients.

With his heart research, he’s focusing on aortic disease and is testing the limits of the Trans Catheter Aortic Valve Replacement.

Photos courtesy of SBU

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ARM instrument mentor Janek Uin in front of Polarstern
The icebreaker Polarstern
Containers on the Polarstern
A polar bear with a cub
ARM/BNL Instrument Mentors Matt Boyer, Janek Uin and Tom Watson in front of the AMF2 AOS
ARM/BNL Instrument Mentors Matt Boyer, Janek Uin and Tom Watson in front of the AMF2 AOS
Last look on Polarstern while waiting for helicopter ride to Akademik Fedorov
BNL's Matt Boyer and Janek Uin
Preparing to launch a helicopter from Akademik Fedorov
Lifting equipment onto ice
ARM technician Vagner Castro and ARM Instrument Mentor Matt Boyer
A curious polar bear
Polarstern trapped in the ice
Snowman on Akademik Fedorov

By Daniel Dunaief

Two researchers from Brookhaven National Laboratory were stuck on a ship trapped in ice near the North Pole — and they couldn’t have been happier.

In fact, one of them, Matt Boyer, an Atmospheric Scientist at BNL, is returning to the German ship Polarstern for six of the next seven months. The Polarstern is part of a 20-nation effort that will gather information about the Arctic to understand climate change. The scientific collaboration, called MOSAiC (Multidisciplinary Drifting Observatory for the Study of Arctic Climate), started in September and will involve collecting data for a full year.

The scientists are measuring aerosols, cloud particles, and other data through conditions that are among the most challenging on the planet. Researchers aboard the Polarstern regularly endure cold temperatures, fierce winds, minimal to no sunlight and the threat of polar bears unafraid of humans.

Janek Uin, an Associate Atmospheric Scientist at BNL, is working with instruments that measure properties of atmospheric aerosol particles such as their size, the concentration of particles per unit volume of air, how the particles are affected by water vapor and how much light the particles scatter, which affects the sunlight that reaches the Earth’s surface.

Arthur Sedlacek, an atmospheric chemist with the Environmental & Climate Sciences Department at BNL, is one of a host of scientists collecting data from the Polarstern. Indeed, Sedlacek traveled to Tromsø Norway when the ship departed, where he prepared to measure the accumulation of black carbon in the Arctic. 

Caused by burning fossil fuels, emissions from distant wildfires, among other things, black carbon can cause polar ice to melt. When there is sun, the black carbon prevents the reflection of the light, which further darkens the white surface, either through exposure of the underlying ground or previously deposited black carbon.

Sedlacek, who did not travel aboard the Polarstern, said scientists around the world are “itching to see the data” from this ambitious mission. The data collection is “so unique and so important that it will not only help us better understand the current (pristine) state of the cryosphere, but it will also [allow scientists] to better understand (and quantify) how the Arctic is responding to climate change.”

Uin, who is an instrument mentor for about 30 instruments worldwide, recalled how he went out for a fire drill. Following his designated path and waiting for the signal to return, Uin decided to snap some pictures of a frozen and uneven landscape that appeared blue during much of the day, when the faint rays of the sun barely made it over the horizon. Unable to maneuver the camera to his satisfaction, Uin took off his gloves. His exposed fingers became numb in the wind. After he put his gloves back on, it took about 10 minutes for the feeling to return to his hands.

Boyer, meanwhile, who spent more of his time working outside than Uin, helped set up the meteorological site about 1 kilometer away from the ship and is monitoring the size and concentration of organic and inorganic aerosol particles.

The size and concentration of the particles determines how they behave in atmospheric processes, Boyer explained. The size of the particle influences its light scattering ability, how long it stays in the atmosphere, the human health impact and its ability to form clouds, among other properties.

The process of working near the North Pole requires a high level of patience. A task that might take two hours in a lab, for example, might require as long as four days to complete in Arctic conditions.

Boyer described how the moisture from his own breath sometimes froze in his face. “I prefer not to wear goggles” because they fog up, he explained. When he exhaled, the water vapor in his breath caused his eyelids to freeze shut. “You have to constantly close your eyes and pull the ice off your eyelids.”

Boyer had to hold onto a piece of metal when it was well below 0 degrees Fahrenheit and windy. Placing the bolts, nuts and screws into a hole with a glove on is “almost impossible,” Boyer said, although once those items are in place, holding a wrench with gloves on is manageable

Each time people work outside, polar bear guards constantly watch the horizon to make sure the carnivorous creatures don’t approach scientists. While the ship is not a cruise vessel, it offers pleasant amenities, including a small pool, a sauna, an exercise room and nourishment Uin and Boyer, who were roommates aboard the Polarstern, appreciated.

“The food was excellent,” Uin said. “Working long hours in extreme conditions in close quarters, the food has to be good. If it’s bad, morale plummets.” The scientist has been on three ice breakers and the food has always been high quality. 

Uin appreciated the opportunity to take the journey and to conduct the scientific research. “I am reminded how lucky I am that people trust me to do this,” he said.

Uin enjoys the opportunity to look at the ice, which appears blue because of the low light. “People think it’s all white,” he said. “There’s a constant twilight and an all-encompassing blue.” He is excited to look at the information the instruments collect and is “certain that the data will help to bring new insights into the very complex processes governing Earth’s climate and help better predict future trends.”

Boyer, who plans to leave BNL this month to pursue his PhD at the University of Helsinki, said he appreciated the opportunity to be a part of a multi-national team. “I’m one of the luckier people on the planet,” Boyer said. “Not many people will see the Arctic and the Antarctic and I’ve seen both,” adding that there is a satisfaction at being involved with something that is “much larger than myself. I’m a part of a community that works together towards a common goal. It’s nice to be a part of an international team working with people from places and countries who put aside their differences.”

All photos from Janek Uin

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