Title
Topic
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‘Accounting for Hydroclimatic Properties in Flood Frequency Analysis Procedures’
“Flood hazard is typically evaluated by computing extreme flood probabilities from a flood frequency distribution following nationally defined procedures. … These procedures, also known as flood frequency analysis, typically recommend only one probability distribution family for all watersheds within a country or region. However, large uncertainties associated with extreme flood probability estimates (>50-year flood or Q50) can be further biased when fit to an inappropriate distribution model. … Here, we demonstrate that hydroclimatic parameters can aid in the selection of a parametric flood frequency distribution.” Find the paper and full list of authors at Hydrology and Earth System Sciences.
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‘Physical Activity-Related Individual Differences in Functional Human Connectome Are Linked to Fluid Intelligence in Older Adults’
“The study examined resting state functional connectivity (rs-FC) associated with moderate-to-vigorous physical activity (MV-PA), sedentary time (ST), TV viewing, computer use and their relationship to cognitive performance in older adults. We used pre-intervention data from 119 participants from the Fit & Active Seniors trial. … Our findings suggest that greater functional integration within networks implementing top-down control and within those supporting visuospatial abilities, paired with segregation between networks critical and those not critical to top-down control, may help promote cognitive reserve in more physically active seniors.” Find the paper and full list of authors at Neurobiology of Aging.
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‘Spin–Orbit Exciton–Induced Phonon Chirality in a Quantum Magnet’
“Phonons are known as an important energy carrier and their interaction with electrons is critical for understanding exotic properties in correlated materials. … Chiral phonons arising from circular ionic motions alone would only exhibit a small magnetic moment. In contrast, chiral phonons reported recently in several classes of materials including the pseudogap phase of cuprates and topological semimetals exhibit surprisingly large moments. Here, we report studies of chiral phonons in CoTiO3, a quantum magnet that hosts interesting bosonic excitations such as topological magnons and spin–orbit excitons.” Find the paper and full list of authors at PNAS.
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‘Effect of Emotion Naming on Emotion Regulation in Younger and Older Adults’
“Prior research has shown that naming one’s emotions before regulation has a detrimental effect on regulation success (Nook et al., 2020). … The aim of the current replication-extension study was to evaluate whether this effect would replicate in an older adult sample. Due to age-related changes in emotion regulation knowledge and behaviors, we hypothesized that age would moderate this effect. … However, contrary to our hypothesis, this effect was larger in older adults (d=.82) than younger adults (d=.41). These findings suggest that affect crystallization may be stronger or faster in older adulthood.” Find the paper and list of authors at Innovation…
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‘Associations Between Cognitive Resources and Emotion Regulation Tactics in an Adult Lifespan Sample’
“The current study investigated how trait-level cognitive capacity relates to emotion regulation tactic preferences in everyday life in adulthood and old age. 51 younger adults (ages 18-39), 53 middle-aged adults (ages 40-59), and 55 older adults (ages 60+) completed measures of working memory and verbal fluency, as well as 21 days of experience sampling. On each survey, participants indicated if they had regulated since the last survey and if so, what emotion regulation strategies they used and how they implemented that strategy through specific emotion regulation tactics.” Find the paper and full list of authors at Innovation in Aging.
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‘Modeling the Role of Immune Cell Conversion in the Tumor-Immune Microenvironment’
“Tumors develop in a complex physical, biochemical, and cellular milieu, referred to as the tumor microenvironment. Of special interest is the set of immune cells that reciprocally interact with the tumor, the tumor-immune microenvironment (TIME). … While tumor cells are known to induce immune cells to switch from anti-tumor to pro-tumor phenotypes, this type of ecological interaction has been largely overlooked. To address this gap in cancer modeling, we develop a minimal, ecological model of the TIME with immune cell conversion, to highlight this important interaction and explore its consequences.” Find the paper and authors list at Bulletin of Mathematical…
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‘Switching the Spin Cycloid in BiFeO3 With an Electric Field’
“Bismuth ferrite (BiFeO3) is a multiferroic material that exhibits both ferroelectricity and canted antiferromagnetism at room temperature, making it a unique candidate in the development of electric-field controllable magnetic devices. The magnetic moments in BiFeO3 are arranged into a spin cycloid, resulting in unique magnetic properties which are tied to the ferroelectric order. Previous understanding of this coupling has relied on average, mesoscale measurements. Using nitrogen vacancy-based diamond magnetometry, we observe the magnetic spin cycloid structure of BiFeO3 in real space.” Find the paper and full list of authors at Nature Communications.
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Joshi, Nguyen receive patent for ‘therapeutic protein’-secreting bacteria
Associate professor of chemistry and chemical biology Neel S. Joshi, with student Peter Nguyen, received a patent for “Engineered bacteria that secrete therapeutic polypeptides, pharmaceutical compositions comprising the bacteria, methods for producing recombinant polypeptides and methods for using the bacteria for diagnostic and therapeutic purposes.”
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Patent for network slicing policies
“Electrical and computer engineering assistant research professor Salvatore D’oro, assistant professor Francesco Restuccia and professor Tommaso Melodia were awarded a patent for ‘Methods for the Enforcement of Network Slicing Policies in Virtualized Cellular Networks.'”
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‘A Gradient of Unisons: The Emergent Superunit in Collective Action’
“As design practice shifts from designing material goods to shaping and facilitating social situations, there is a compelling need to develop a richer understanding of specific social relations as facilitated by design. This article explores bodied unisons—enkinaesthetic entrainments of self + other. We present these unison acts as identifiable patterns of behavior that are observable when people coordinate, patterns that foster a move from individual to superunit.” Find the paper and full list of authors at Design Issues.
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‘Quasi-Fermi Liquid Behavior in a One-Dimensional System of Interacting Spinless Fermions’
“We present numerical evidence for a paradigm in one-dimensional interacting fermion systems, whose phenomenology has traits of both Luttinger liquids and Fermi liquids. This state, dubbed a quasi-Fermi liquid, possesses a discontinuity in its fermion occupation number at the Fermi momentum. The excitation spectrum presents particlelike quasiparticles and absence of holelike quasiparticles, giving rise instead to edge singularities.” Find the paper and full list of authors at Physical Review B.
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‘Rigor With Machine Learning From Field Theory to the Poincaré Conjecture’
“Despite their successes, machine learning techniques are often stochastic, error-prone and blackbox. How could they then be used in fields such as theoretical physics and pure mathematics for which error-free results and deep understanding are a must? In this Perspective, we discuss techniques for obtaining zero-error results with machine learning, with a focus on theoretical physics and pure mathematics. Non-rigorous methods can enable rigorous results via conjecture generation or verification by reinforcement learning. We survey applications of these techniques-for-rigor ranging from string theory to the smooth 4D Poincaré conjecture in low-dimensional topology.” Find the authors list in Nature Reviews: Physics.
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‘Carvings in Stone: Design Research for Public Health Investigations in the Age of COVID-19’
“The COVID-19 pandemic presented complex challenges to public health research involving human subjects, necessitating creative thinking to maintain safe and productive qualitative data collection. In this paper, we describe how an interdisciplinary team overcame these challenges by translating in-person workshops into at-home design probes to explore connections between university students’ climate change attitudes and their health. … This case study provides insight into how pandemic-imposed restrictions presented a novel opportunity to reconceptualize how we collect qualitative data in public health research and summarizes the unique benefits of integrating such design-based approaches.” Find the paper and authors list at Design for…
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Zhang receives NSF grant to harness magnonic nonreciprocity
“Electrical and computer engineering assistant professor Xufeng Zhang, in collaboration with Boston University, was awarded a $420,000 NSF grant for ‘Harnessing Magnonic Nonreciprocity Through Dissipation Engineering.’ This project will investigate the principals of energy dissipation in magnonic systems and engineering approaches for manipulating dissipations.”
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‘An Empirical Study of How Service Designers Use Metrics’
“Scholars have advocated for the importance of evaluation in service design, proposing comprehensive frameworks for such integration in design processes. This research seeks to complement existing theoretical studies by providing empirical insights into the utilization of metrics by practicing service designers. Our study presents findings derived from a global survey and in-depth interviews conducted with service designers from eleven countries.” Find the paper and full list of authors at She Ji: The Journal of Design, Economics, and Innovation.
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‘Milk Exosomes Anchored With Hydrophilic and Zwitterionic Motifs Enhance Mucus Permeability for Applications in Oral Gene Delivery’
“Exosomes have emerged as a promising tool for the delivery of drugs and genetic materials, owing to their biocompatibility and non-immunogenic nature. However, challenges persist in achieving successful oral delivery due to their susceptibility to degradation in the harsh gastrointestinal (GI) environment and impeded transport across the mucus-epithelium barrier. To overcome these challenges, we have developed high-purity bovine milk exosomes (mExo) as a scalable and efficient oral drug delivery system, which can be customized by incorporating hydrophilic and zwitterionic motifs on their surface.” Find the paper and full list of authors at Biomaterials Science.
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‘Persistent Anisotropy of the Spin Cycloid in BiFeO3 Through Ferroelectric Switching’
“A key challenge in antiferromagnetic spintronics is the control of spin configuration on nanometer scales applicable to solid-state technologies. Bismuth ferrite (BiFeO3) is a multiferroic material that exhibits both ferroelectricity and canted antiferromagnetism at room temperature, making it a unique candidate in the development of electric-field controllable magnetic devices. … This study provides understanding of the antiferromagnetic texture in BiFeO3 and paves new avenues for designing magnetic textures and spintronic devices.” Find the paper and full list of authors at ArXiv.
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Dai receives patent for ‘Biodegradable Elastic Hydrogels for Bioprinting’
From the patent’s abstract: “Disclosed herein are hydrogel compositions comprising a triblock copolymer having a formula A-B-A, wherein A is a polycaprolactone (PCL) block or a polyvalerolactone (PVL) block and B is a polyethylene glycol (PEG) block. Also disclosed are methods of making a hydrogel comprising providing a photoinitiator and a triblock copolymer having a formula A-B-A, wherein the triblock copolymer comprises one or more ethylenically unsaturated moieties; and photocrosslinking the triblock copolymer, thereby forming a hydrogel.”
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‘Genome-Wide Association Identifies a BAHD Acyltransferase Activity that Assembles an Ester of Glucuronosylglycerol and Phenylacetic Acid’
“Genome-wide association studies (GWAS) are an effective approach to identify new specialized metabolites and the genes involved in their biosynthesis and regulation. In this study, GWAS of Arabidopsis thaliana soluble leaf and stem metabolites identified alleles of an uncharacterized BAHD-family acyltransferase (AT5G57840) associated with natural variation in three structurally related metabolites. … Together, this work extends our understanding of the catalytic diversity of BAHD acyltransferases and uncovers a pathway that involves contributions from both phenylalanine and lipid metabolism.” Find the paper and full list of authors at the National Library of Medicine.
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‘Developing and Sustaining Northeastern’s Ed.D. Program During and Post Pandemic’
“Northeastern University’s Ed.D. faculty faced unique challenges during the pandemic and racial reckoning following George Floyd’s murder. During this period, however, we found opportunities to adapt and improve our program. We prioritized compassion and connection. We made significant strides in curriculum development through design and implementation of three new concentrations. We focused all program elements on how social justice works in a variety of educational settings. We altered our approach to data collection and doctoral supervision. In so doing, we were able to maintain consistency for our students and develop a closer bond with our faculty colleagues.”
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‘Design for Emergency: How Digital Technologies Enabled an Open Design Platform to Respond to COVID-19’
“In the COVID-19 pandemic, digital technologies (DT) supported the design and implementation of solutions addressing new needs and living conditions. We describe Design for Emergency, a digital open design platform developed to ideate solutions for people’s fast-changing needs in the pandemic, to analyze how DT can affect human-centered design processes during emergencies. We illustrate how DT: i) helped quickly collect and analyse people’s needs…; ii) facilitated the creation of a virtual network of stakeholders and an open-innovation digital platform; iii) inspired the ideation of solutions.” Find the paper and full list of authors at Interacting With Computers.
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‘Monodromy of the Casimir Connection of a Symmetrisable Kac–Moody Algebra’
“Let g be a symmetrisable Kac–Moody algebra and V an integrable g–module in category O. We show that the monodromy of the (normally ordered) rational Casimir connection on V can be made equivariant with respect to the Weyl group W of g, and therefore defines an action of the braid group Bw on V. … This action is canonically equivalent to the quantum Weyl group action of Bw on a quantum deformation of V, that is an integrable, category O module V over the quantum group Uhg such that V/hV is isomorphic to V.” Find authors at Inventiones Mathematicae.