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Permanent magnets play an indispensable role in renewable energy technologies, including wind turbines, hydroelectric power generators and electric vehicles. Ironically, the magnets used in these “clean energy” technologies are made from rare earth elements such as neodymium, dysprosium and samarium that entail environmentally hazardous mining practices and energy-intensive manufacturing processes, according to Radhika Barua, Ph.D., mechanical and nuclear engineering assistant professor. Access to these rare earth magnets is also heavily reliant on China and demand for them is expected to grow as the U.S. seeks to meet net-zero carbon emissions by 2050. “That anticipated demand poses a challenge to U.S. decarbonization goals as the rare earth elements are characterized by substantial market volatility and geopolitical sensitivity,” Barua says. “This is where our project comes in.” Barua and fellow VCU professors Afroditi Filippas, Ph.D., and Everett Carpenter, Ph.D., are part of a team of VCU researchers working to create new types of magnets. By using additive manufacturing, more commonly known as 3D printing, they hope to create replacements for those permanent magnets composed of rare earth elements that are made from materials readily available in the U.S. China mines 58 percent of the global supply of rare earth elements used to make neodymium magnets that are widely used in consumer and industrial electronics, the U.S. Department of Energy (DOE) noted in a February 2022 report. That dominance grows throughout the manufacturing process with China accounting for 92 percent of global magnet production, the DOE estimates. “It would be ideal if we could manufacture the same magnets with the same characteristics without using rare earth elements,” says Filippas, who teaches electromagnetics at VCU. “It would be even better if we could make these magnets using additive manufacturing techniques.” VCU researchers are trying to do that in collaboration with the Commonwealth Center for Advanced Manufacturing (CCAM), which brings university, industry and government officials together to tackle manufacturing challenges. The professors are conducting much of their work at CCAM’s lab in Disputanta, Virginia. “We have access to equipment that we would not have access to at VCU,” Filippas says of the benefits of the CCAM partnership. “They provide that level of expertise using the equipment and understanding the process.” The project is funded by the VCU Breakthroughs Fund and CCAM. Barua is working with Carpenter, a chemistry professor, on the materials science part of the project. Filippas is focusing on data analytics and is helping develop a monitoring process to ensure the newly-crafted replacement magnets are viable. In addition to providing a more stable source of supply, Barua says the replacement magnets could also bring environmental benefits. Providing an alternative to rare earth magnets would involve less hazardous mining techniques while also reducing emissions and energy consumption. The replacement magnets are made by filtering particles of iron, cobalt, nickel and manganese through a nozzle where a laser fuses them together through a process known as direct energy deposition. That metal 3D printing approach can make complex shapes while minimizing raw material use and manufacturing costs, Barua says. “Right now, we’re printing straight lines just to see what we’re going to get and see if we can even print them,” Filippas says. “Are we getting the composition of the materials that we want? It’s a slow painstaking process towards freedom from reliance on rare earth materials.” Barua says using additive manufacturing allows researchers to create a unique microstructure layer-by-layer instead of simply making magnets from a cast. Researchers do not expect their replacements to mimic the full strength of rare earth magnets, but they hope to produce mid-tier magnets that are as close as possible to current magnets. Carpenter adds their new magnets could potentially be smaller and weigh less than rare earth magnets, which could lead to numerous benefits. “This reduction would be a big savings to the automobile manufacturing industry, for example, where every ounce matters,” Carpenter says. “In an S-Class Mercedes, there are over 130 magnets used in sensors, actuators or motors. This approach could save pounds of weight which translates into fuel efficiency.” Barua says the team is working to establish the feasibility of their new magnet-making process. They are trying to get the microstructure of the new magnets just right and are using additive manufacturing to fine-tune their magnetic properties, Barua says. “When artificial diamonds, cubic zirconia, was synthetically produced in the lab, it changed the entire diamond industry,” Barua says. “That’s exactly what we’re trying to do. We’re trying to make synthetic magnets.”
Expert Podcasts: In Corporate Valuation, Customers are King
From investors to managers, business leaders need to understand the true value of companies, but many of the traditional methods are outdated and incomplete. Emory University Goizueta Business School's Professor Dan McCarthy joins to discuss customer-based corporate valuation, including the critical role customer lifetime value plays in driving a company’s success. For more insight and if you're interested in knowing more, then check out Dan's conversation that includes why customer data points are most important to monitor and how investors and managers stand to benefit from this approach. It's right here on the Goizueta Effect podcast. Dan is an Assistant Professor of Marketing at Goizueta Business School. His research centers on customer lifetime value, limited data problems, data privacy, and the marketing-finance interface. He is regularly featured as a key expert, with recent coverage in the Harvard Business Review, Wall Street Journal, Fortune, The Economist, and CNBC. If you're looking to connect or arrange an interview – simply click on his icon now to book a time today.
Deprivation in childhood linked to impulsive behaviour in adulthood – research
Researchers found a link between childhood deprivation, impulsive behaviour and addictions later in life Behaviours include overeating, taking drugs, smoking cigarettes and gambling A second study found adults living in deprived areas displayed similar impulsive traits Children who have experienced deprivation are more likely to make more impulsive choices than those who don’t and can lead to addictions in later life - research has shown. ‘Trait impulsivity’, the preference for immediate gratification, has been linked to spending more on food, especially unhealthy, highly calorific food. Studies have shown that children who experience poverty and food insecurity tend to have a higher body-mass index as adults than those who do not. Researchers from the School of Psychology at Aston University found a link between deprivation in childhood and impulsive behaviour – leading to addictions later in life. The findings, which are a culmination of six years of research, also found a further link between impulsivity, obesity and the cost of living crisis. Professor Richard Tunney, head of the School of Psychology at Aston University, published a study in Scientific Reports earlier this year where he showed that children who experience deprivation make more impulsive choices than children who don’t. The research team studied 146 children, with an average age of eight, living in some of the most deprived areas of England and compared them with children living in some of the most affluent neighbourhoods. Children were given a choice between taking home a small amount of money (for example, £1) or getting £10 a week, or even more a year later. How long a person is willing to wait for the larger amount of money can be used to calculate a ‘discount rate’ that shows how much the waiting time reduces the value of the money. An impulsive person might prefer £1 now because the value of £10 in six months is ‘discounted’ to less than £1 right now. This means that, for them, the £10, is discounted by £9 over the six-month wait. A less impulsive person might be willing to wait six months for £10, but not wait for a whole year for £15. This means that, for them, the value of the £15 is discounted by £5 over the additional six-month wait. This discount rate is a measure of how impulsive someone is. Commenting on the findings, Professor Tunney said: “The results showed that children living in the most deprived areas had significantly higher discount rates than children living in the least deprived areas, regardless of age or intelligence, indicating that deprivation was the causal factor in the children’s choice. “This preference for immediate outcomes is a stable personality trait that remains constant throughout a person’s life.” However, in the research team’s most recent study published by the Royal Society, they investigated impulsivity in over 1,000 older adults aged between 50 and 90. The study found that older adults living in the most deprived areas showed the same preference for smaller-sooner financial outcomes as the children in the first study. It also found that a person’s job predicted the choices they made. Adults working in technical or routine occupations, such as mechanics or cleaners, chose to receive smaller amounts of money than wait for larger amounts compared with people in professional occupations, such as engineers or scientists. Professor Tunney added: “These findings are concerning because impulsivity doesn’t just predict obesity. These findings tell us a lot about why people living in poorer areas tend to be unhealthier than people living in wealthy areas. “People who experience deprivation as children are more likely to choose to do things that, although they might be pleasurable in the short term, are unhealthy in the long run. This includes overeating, taking drugs, smoking cigarettes and gambling. “We know too, that impulsivity can help to explain why some people go on to become addicts, while other people can avoid some of the more harmful effects of drugs and alcohol. “Deprivation is one of many factors that can lead to impulsive behaviour throughout a person’s lifetime. Genetics also plays a role in impulsivity. Policymakers can’t do anything about a person’s genes but they can influence the nation’s long-term mental and physical health by minimising child poverty. Failing to do so will have long-term implications for the children living through today’s cost of living crisis.” For more information about the School of Psychology at Aston University, please visit our website.
Researcher to build fuel database to improve nuclear reactor sustainability
Braden Goddard, Ph.D., assistant professor in the Department of Mechanical and Nuclear Engineering, has received a grant from the U.S. Department of Energy’s Nuclear Energy University Program (NEUP) to create a database for use in nuclear material control of pebble bed reactors (PBR). Advances in material science and technology have revitalized the nuclear energy industry, allowing for the design and construction of advanced nuclear reactors. New high-temperature materials developed by researchers allow ideas from as early as 1970, like pebble bed reactors, to be re-explored and make nuclear power more efficient and sustainable. Pebble bed reactors are one of many ideas from as early as 1970 that researchers are once again exploring to make nuclear power more efficient and sustainable now that science has developed new high-temperature materials. “Imagine a gumball machine,” said Goddard, “A pebble bed reactor functions similarly. The pebbles are the gumballs, which are fed into a reservoir. As they make their way through the reactor, heat generated from the radiation is removed by a gas which then spins an electrical turbine to generate electricity. The pebbles then exit from the bottom of the reservoir and those that can be reused are returned to the top of the reservoir.” Each pebble contains thousands of microscopic uranium particles encased in silicon-carbide cladding. As the pebble passes through the PBR, the path it follows affects how much fissioning occurs within the uranium. This means pebbles deplete at different rates based on how they travel through the reactor. Goddard’s database seeks to characterize the state of a pebble after it leaves the PBR by determining precisely how much plutonium and uranium remains in the pebble. This informs PBR operators if the pebble can be reused or if it needs to be sent off as waste. Better characterizing these pebbles improves the sustainability and security of PBRs while reducing the amount of waste generated. Measuring gamma radiation from the radioactive isotope cesium-137 created from the fission of uranium is the traditional method of determining how much nuclear fuel is still viable. However, this system does not work for PBRs because the correlation between the uranium fuel and the gamma radiation it emits is not consistent between pebbles. To remedy this, Goddard will measure both gamma and neutron radiation emitted by all radioactive isotopes in the pebble, which varies depending on the route the pebble takes through the reactor. Partners like Brookhaven National Laboratory and similar institutions within the United States will assist in the research by applying machine learning techniques to the gamma and neutron radiation signature. “Nuclear reactor operators have instruments that tell them what’s going on inside the reactor, but it’s not the same as knowing how much uranium mass you have in fuel going into or coming out of the reactor,” said Goddard. Goddard and his colleague, Zeyun Wu, Ph.D., will use computer modeling to run countless simulations and map every possible course a pebble can take through a PBR. The resulting catalog of data will allow PBR operators to characterize the state of any pebble leaving the PBR and assess if it can be reused or if it is ready to be stored at a nuclear waste facility. The catalog also serves as a material inventory, allowing nuclear facilities to better track waste material.
#Expert Research: New National Science Foundation and NASA-Funded Research Investigates Martian Soil
Studies have shown crops can grow in simulated Martian regolith. But that faux material, which is similar to soil, lacks the toxic perchlorates that makes plant growth in real Red Planet regolith virtually impossible. New research involving Florida Tech is examining how to make the soil on Mars useful for farming. Andrew Palmer, co-investigator and ocean engineering and marine sciences associate professor, along with Anca Delgado, principal investigator and faculty member at Arizona State University’s Biodesign Swette Center for Environmental Biotechnology, and researchers from the University of Arizona and Arizona State University, are participating in the study, “EFRI ELiS: Bioweathering Dynamics and Ecophysiology of Microbially Catalyzed Soil Genesis of Martian Regolith.” This National Science Foundation and NASA-funded project will use microorganisms from bacteria to remove perchlorates from Martian soil simulants and produce soil organic matter containing organic carbon and inorganic nutrients. Martian regolith contains high concentrations of toxic perchlorate salts that will impede plant cultivation in soil, jeopardizing food security and potentially causing health problems for humans, including cancer. Researchers will look at different bacterial populations and how well they are able to process and break down the perchlorates, as well as what kind of materials they produce when they do. They’ll also look at different temperatures and moisture conditions, as well as in the presence or absence of oxygen. Students in the Palmer Lab will receive the simulants after this process, try to replicate it, and then test how well the perchlorate-free regolith is able to grow plants. A challenge the researchers face is how they remove the toxic salts, as well as if they can remove all of them. Palmer cautioned that the possibility that removing the perchlorates does not necessarily mean the regolith is ready for farming. “You can’t make the cure worse than the disease, so we have to be ending up with regolith on the other side that’s better than when we started,” Palmer said. “We can’t trade perchlorates for some other toxic accumulating compound. Just because we’re removing the perchlorates doesn’t necessarily mean that we’re going to make the regolith better for plants. We might just make it not toxic anymore. How much does it improve is really what we’re trying to figure out.” Even without perchlorates, there are significant challenges to growing crops in Martian soil. While researchers have grown plants in simulated regolith, the regolith is not good for plant growth, as in addition to a lot of salts, it has a high pH and is very fine, which means it can ‘cement’ when wet, suffocating plant roots. Being able to grow in the soil instead of using hydroponics could also provide a more efficient, cost-effective solution. “There is always the option of hydroponic growth of food crops, but with a significant distance to Mars and the lack of readily available water, we need a different kind of plan,” said ASU’s Delgado. “If there is a possibility to grow plants directly in the soil, there are benefits in terms of water utilization and resources to get supplies to Mars.” Some of the microbial solutions the team is proposing could also help with studies of soils on Earth. “The best soils for agriculture on earth, they were taken up decades ago, and so now we’re trying to farm on new land that’s not really meant for agriculture, if you think about it,” Palmer said. “So, as we think about ways to convert it into better soil, I think this research helps teach us how to do that, but it also inspires.” The research will also allow Florida Tech students to get hands-on space agriculture experience. “We’re going to be training the grad students and the undergraduates who are going to be the researchers who take on those new challenges, so I think one of our most important products are going to be the students we train,” Palmer said. “We’ll deliver Mars soil, but we also deliver, I think, a future group of researchers.” If you're a reporter looking to know more about this topic - then let us help with your coverage. Dr. Andrew Palmer is an associate professor of biological sciences at Florida Tech and a go-to expert in the field of Martian farming. Andrew is available to speak with media regarding this and related topics. Simply click on his icon now to arrange an interview today.
Expert Perspective: Unpacking the Innovation Process
Have you ever looked at a table or chair, stool, or other household item and thought, “I can use this another way”? If you have, you might be an innovative hacker, someone who operates from a product-first search process, which is the opposite of the “classic” problem-solving method. Tian Chan, assistant professor of information systems and operation management, worked with long-time friend and fellow researcher, Shi-Ying Lim, assistant professor of information systems and analytics at the National University of Singapore, to see if starting with a product generates more novelty (or uniqueness). And they used IKEA furniture as the basis for their research. “Problem-first searching is the ‘classic’ way we think about problem solving. It starts with a problem, such as needing a swing, before identifying possible solutions, like a person turning an IKEA stool into a swing,” explains Chan. Whereas product-first searching “starts with a product in mind,” such as this IKEA hacker having a stool and wanting to make it into something different, then “searching through alternative needs” to identify the most viable option for the stool’s new life. This same method of problem-solving created the jogging stroller, says Chan. It just took one parent, frustrated with pushing a standard four-wheel stroller, to invent a more effective stroller for runners. Ultimately, the research, which involved hours upon hours of searching for examples of IKEA hacking, revealed that traditional, problem-first thinking remains the most effective way to both solve a problem and create a novel, new use for an item. However, product-first searching presents many opportunities for creative uses of everyday things. IKEA hacking is popular for a few reasons: The furniture is popular, inexpensive, and usually requires self-assembly. - Tian Chan It’s particularly the self-assembly aspect that invites novel uses for common items. During his research, Chan uncovered examples of people taking an IKEA coffee table, flipping it upside down, and attaching it to the ceiling for pets to perch from. “Users are endowed with such a large variety of interesting problems,” says Chan. “Companies should look toward users if they wish to more effectively identify novel uses for their existing products.” Interested in knowing more? Tian Chan is an Assistant Professor of Information Systems & Operations Management at the Goizueta Business School at Emory University. Simply click on his icon now to connect with him today.
Expert Podcasts: Ready for Career Growth? Advocates are Key!
Career advocates are critical to career growth. In fact, employees with advocates are 23% more likely to advance at work. Emory University Goizueta Business School's Professor Renée Dye joins to discuss the key role and critical attributes of advocates, how you can cultivate and attract influential players to meet your goals, and the impact of remote work on relationship management and organizational culture. For more insight and if you're interested in knowing more, then check out Renée's discussion right here on the Goizueta Effect podcast. Dye also has an intriguing blog as well - it's worth the visit : If you're looking to connect or arrange an interview – simply click on Dye’s icon now to book a time today.
The COVID-19 pandemic took a toll on America's children -- parents lost jobs, kids weren't able to go to school, and they were told it was dangerous to see their friends. From a child's point of view, they seemed to have a lot, if not nearly everything, taken away, and many are still struggling today. Recently, NPR took a deeper look at the challenges kids are facing and found one creative solution that's helping elementary school children to change negative thinking patterns, better understand others' motivations, and face fears that may fuel unhealthy avoidance behaviors. UConn expert Sandra Chafouleas, a professor and school psychologist, is a co-creator of the new program -- called Feel Your Best Self -- which uses puppets to help children develop their social-emotional skills and well-being. During the pandemic, Wicks sent emails to researchers at the University of Connecticut's Neag School of Education, fishing for collaborators. She'd been wanting to put more of their work online. Her pitch: You want to help kids right now, and we have puppets. One of those emails went to Sandy Chafouleas, a UConn professor and trained school psychologist. Chafouleas was worried about all that extra stress on kids returning from the pandemic and that schools wouldn't be able to help them. "Teachers were stressed. Systems were stressed. Nobody had time to do professional learning to do something complex. That's just ridiculous to think that they could've," Chafouleas says. Denoya, the first-grade teacher at Natchaug Elementary, has seen it firsthand: Kids returned from the pandemic with missing or rusty social and emotional skills. They had trouble sharing, learning how to take turns and dealing with disappointment. "There's just things that they missed out on with not having that socialization, and so we need to find a place to teach it at school too," Denoya says. Anticipating this need, Chafouleas and Wicks cooked up Feel Your Best Self. The idea was, these scripted puppet videos would be easy — and free — for schools to use, even if they don't have a trained mental health specialist on-hand. Which many don't. Or they have one, spread across hundreds and hundreds of kids. That includes Natchaug, where Principal Eben Jones has been unable to fill a vacant school psychologist position for the past two years. Jones says that hasn't stopped him and his staff from prioritizing this kind of emotional and social skill-building. "It is embedded daily," Jones says. "Every teacher has time in the morning to have a morning meeting. And in that morning meeting they build community, share a morning message, you know, play a team-building game and make sure kids are connected to each other." This school year, Denoya and her students are doing one FYBS lesson each week. The FYBS program has exploded over the past year, thanks in part to a flood of grant funding. What began last year at Natchaug with a small team performing virtually – and live, not recorded – in one classroom at a time, became a Herculean effort to script, cast and shoot not one but 12 unique videos, with multiple puppets and performers, that teachers and caregivers can access anytime online, at no cost – in both English and Spanish. "Emily and I often feel like we're hanging on to the end of the caboose right now. This has scaled in ways that are unimaginable," says Chafouleas. Sandra Chafouleas is a UConn Board of Trustees Distinguished Professor of Educational Psychology and an expert on social-emotional well-being. She's available to speak with the media today -- just click her icon to arrange an interview.
Aston University photonics expert elected as Fellow of Optica
• Professor Edik Rafailov is head of the Optoelectronics and Biomedical Photonics Research Group • He is a member of Aston Institute of Photonic Technologies, a world-leading photonics research centre • Optica is the leading organisation for researchers and others interested in the science of light. A photonics expert at Aston University has been elected as a Fellow of Optica (formerly OSA), Advancing Optics and Photonics Worldwide. Professor Edik Rafailov is head of the Optoelectronics and Biomedical Photonics Research Group in the College of Engineering and Physical Sciences at Aston University and a member of Aston Institute of Photonic Technologies (AIPT), one of the world’s leading photonics research centres. He was elected for his ‘contributions to novel gain media for semiconductor lasers at wavelengths from 750nanometres to1300nanometres’. Optica is the society dedicated to promoting the generation, application, archiving and dissemination of knowledge in the field of photonics. Founded in 1916, it is the leading organisation for scientists, engineers, business professionals, students and others interested in the science of light. Fellows are selected based on several factors, including outstanding contributions to business, education, research, engineering and service to Optica and its community. Satoshi Kawata, 2022 Optica president, said: “I am pleased to welcome the new Optica Fellows. These members join a distinguished group of leaders who are helping to advance the field optics and photonics. Congratulations to the 2023 Class.” Director of AIPT, Professor Sergei Turitsyn said: “I am delighted that Edik has received this prestigious fellowship. “AIPT has one more Optica Fellow, that is a high honour in the field of photonics. “Edik joined Aston University in 2014 and since then his research has contributed to the Institute’s world-leading position in the fields of fibre and semiconductor lasers and bio-medical photonics, making impact on industry, scientific communities and society.” Fellows are Optica members who have served with distinction in the advancement of optics and photonics. As they can account for no more than 10 percent of the total membership, the election process is highly competitive. Candidates are recommended by the Fellow Members Committee and approved by the Awards Council and Board of Directors. The new Optica Fellows will be honoured at the Society’s conferences and events throughout 2023.
Researchers awarded £2 million to develop drugs to prevent epileptic seizures in children
• Three-year research project to develop new drug treatments for childhood epilepsy • Scientists will test new treatment on pieces of living brain tissue • The research is a collaboration between Aston University, Bristol University and Jazz Pharmaceuticals. Scientists at Aston University have started work on a project that will look for new drug treatments to prevent the onset of childhood epilepsy. The three-year Medical Research Council (MRC) funded project is a collaboration led by researchers in the College of Health and Life Sciences at Aston University, partnered with Bristol University and Jazz Pharmaceuticals. They have been awarded £2 million to explore how epilepsy becomes established in the brain and how this process might be prevented. The researchers will test new drugs in the human brain, using samples of living tissue taken from children with difficult to treat epilepsies who have had to have brain surgery. Epilepsy is a brain disease which is characterised by seizures. As Professor Gavin Woodhall, lead researcher and co-director of Aston Institute of Health and Neurodevelopment, explains: “Seizures are periods of time when networks of brain cells are too active and are uncontrollably excited and spiking. If uncontrolled excitation spreads to brain regions that control movement, then too many brain cells are ‘talking at the same time’ and we can see seizures as changes in movement such as jerks and twitches.” Upon receiving the grant, Professor Woodhall said: “We will be able to study epilepsy in such detail that we hope to be able to treat the problems that underly epilepsy and not just the seizures themselves. And this could help pave the way to prevent epilepsy from developing in children at all. “Essentially we want to find a treatment that stops the brain from being able to establish epilepsy after the first seizure - via a new drug treatment. We will be testing a known drug and a new drug to see if the drug can do this.” As part of the research for this project the scientists will look at how different amounts of epileptic activity in the brain can alter the brain’s excitability. The researchers predict that if there are a lot of seizures, the synapses in the brain will decrease their activity and brain cells will become more likely to spike. Professor Woodhall added: “This is why we will test antiepileptic drugs, and new drugs designed to interfere with homeostatic scaling - which is a form of plasticity, in which the brain responds to chronically elevated activity in a neural circuit with negative feedback, allowing individual neurons to reduce their overall action potential firing rate. “By interfering with homeostatic scaling we will be able to see if they can prevent seizures from developing or reducing their intensity.” The research will allow Professor Woodhall and his team to be able to record the life history of the disease. This is something which has not been done before in this level of detail and it is predicted it will help to shed light on how epilepsy initially develops in the brain. Following on from the three-year project the team will move into drug development and then clinical trial. For more information about research being undertaken at AIHN please go to our website. If you are interested in the courses we have available in this area please go to our course pages.