Princeton University

Seasonal divergence in compound heatwave–extreme precipitation events

Compound heatwave – extreme precipitation (CHWEP) events pose escalating risks in monsoon-influenced mid-latitude region across the globe, yet, long-term and seasonally-resolved observational evidence remains limited. Here, we quantify the seasonal and long-term changes, and rece...

Activity-based profiling of bacterial RNA-modifying enzymes reveals species-specific 5-methyluridine modification in Bacillus subtilis 23S rRNA

RNA modifications play an important role in biological processes. Mapping the diversity of RNA chemistry and studying the biological function of individual modifications remains an outstanding challenge in many organisms. In particular, RNA modifications remain poorly studied acr...

2D theoretically twistable material database

The study of twisted two-dimensional (2D) materials, in which twisting layers create moiré superlattices, has created opportunities for investigating topological phases and strongly correlated physics. The broader potential of a seemingly infinite set of twistable 2D materials re...

Different Last Millennium El Niño Southern Oscillation Sea Surface Temperature Patterns Drive Disparate North Atlantic Tropical Cyclone Characteristics

Abstract Understanding the relationship between the El Niño‐Southern Oscillation (ENSO) phenomenon and North Atlantic tropical cyclone (TC) activity is critical for both seasonal predictions and future projections of TCs. Unfortunately, the satellite observational era (1970‐pres...

Two-dimensional topological quantum chemistry and catalog of topological materials

Two-dimensional (2D) topological materials host symmetry-protected, disorder-robust edge states central to quantum technologies. Yet they remain scarce compared with their 3D counterparts. We adapted the topological quantum chemistry formalism to layer groups and studied the band...

Past rapid spread of introduced livestock coincided with vegetation clearance on Madagascar

Debates persist around the past and present effects of introduced livestock on the native biodiversity of Madagascar. Indeed, the variable habitat and past rate of spread of livestock across the island's distinct ecoregions are poorly known. Sets of 14C and stable isotope data fr...

Transition to Double‐Cell Mock Walker Circulations With Surface Warming Explained by Periodic Convection

Abstract Idealized mock Walker simulations are widely used to study the interactions between overturning circulation and convection in the tropics. Previous studies documented a transition from a single‐cell to a double‐cell mock Walker circulation when the average sea surface te...

Understanding Community-Level Blocklists in Decentralized Social Media

Community-level blocklists are key to content moderation practices in decentralized social media. These blocklists enable moderators to prevent other communities, such as those acting in bad faith, from interacting with their own—and, if shared publicly, warn others about communi...

The Simons Observatory: Development of a Pipeline to Detect Rapid Transients in Time-Ordered Data

We introduce a method for detecting astrophysical transients evolving on timescales of milliseconds to minutes using cosmic microwave background (CMB) survey telescopes. While previous transient searches in CMB data operate in map space, our pipeline directly processes the raw ti...

The Relational Origins of Rules in Online Communities

Where do rules come from in online communities? This study investigates how and why online communities adopt and change their rules. We conducted a grounded theory-based analysis of 40 in-depth interviews with community leaders from subreddits, Fandom wikis, and Fediverse servers...

Seeing the Politics of Decentralized Social Media Protocols

Calls to decentralize feed-based social media have been driven by concerns about the concentrated power of centralized platforms and their societal impact. In response, numerous decentralized social media protocols have emerged, each interpreting “decentralization” in a different...

mSphere Legacy: A career built on suppressors

ABSTRACT My career in research began in the early 1970s and is now ending. In the early years, I learned much from three wonderful mentors. My research has focused on Escherichia coli , and my studies were motivated by two basic questions: how does this bacterium build its comple...

Crystal structure and basic properties of dirhenate quantum materials

The anhydrous divalent 3d-metal dirhenate quantum materials, M(ReO$_4$)$_2$,were synthesized using solid-state methods for M = Mn through Zn. Previously unreported Mg(ReO4)2 is also described. Their layered crystal structures, which feature an in-plane triangular lattice of M$^{2...

Messaging strategies and the emergence of echo chambers in collective decision-making

Collective decision-making arises from individual agents integrating their own personal observations with information obtained from social partners. In many biological systems that exhibit collective decision-making, the process by which social information is produced, transmitte...

A latency-aware framework for visuomotor policy learning on industrial robots

Industrial robots are increasingly deployed in construction and manufacturing tasks, where the deployment of end-to-end visuomotor policies is challenged by the observation–execution gap induced by observation, inference, and execution latencies. This gap is often significant on...

Environmental DNA Monitoring of Narwhal (Monodon monoceros) and Fish Biodiversity with Inuit Communities

The Northern Hudson Bay (NHB) narwhal (Monodon monoceros) population is geographically and genetically distinct and represents a vital cultural and subsistence resource for Inuit communities in Nunavut. While aerial surveys provide abundance estimates for population models and su...

STRUCTURED LIFE COURSE ANALYSIS OF DNA METHYLATION ASSOCIATIONS WITH INTERNALIZING BEHAVIOR AND ANXIETY FROM AGES 3-22

Mental health challenges often emerge early in development, with childhood and adolescence representing key periods of vulnerability. Internalizing symptoms, which include anxious and depressive symptoms, are among the most common psychological difficulties in youth and are typic...

Construction and characterisation of the DarkSide-20k veto silicon photo-multiplier tiles

Abstract Silicon photo-multipliers (SiPMs) are state-of-the-art sensors capable of detecting a single photoelectron under cryogenic conditions, with potentially lower radioactivity than widely used photomultiplier tubes. The DarkSide-20k experiment, designed to perform direct dar...

Interlayer-engineering of charge order wavevector in kagome metals

Charge orders in the kagome metals AV$_3$Sb$_5$ sit at the center of a rich phase diagram that also includes superconductivity, nematicity, and signatures of time-reversal-symmetry breaking. Yet even the basic question of which charge ordering wave vectors are intrinsic, and whic...

Streamlined CRISPR-based assays for detection and subtyping of H5 and H7 avian influenza

Avian influenza viruses (AIVs) are zoonotic pathogens that pose an increasing global threat due to their potential for significant economic losses in agriculture, and the risk of a pandemic should human-to-human transmission occur. In light of this, we need rapid, sensitive, and...