University of California, Santa Cruz

From Mediation to Escalation: Buffer Spaces for Workplace Concern Reporting

Workplace concern reporting systems have traditionally been designed around formal channels such as HR portals, grievance procedures, and whistleblower mechanisms. However, employees often perceive these formal systems as opaque, untrustworthy, emotionally draining, and ultimatel...

Space-time signatures of surface warming accelerations since 1970

Abstract With record-breaking temperatures over 2023-2024 and extreme events observed around the world, there is currently a debate in the scientific literature and media as to whether global warming is accelerating. Here we address this question from a regional perspective, dete...

Reliability of computational versus noncomputational metrics of working memory and episodic memory in serious mental illness.

= 76). These participants were tested in working memory and episodic memory paradigms. We applied a computational model that yielded parameters corresponding to memory storage capacity, memory precision, and the rate of attention lapses. We also examined a noncomputational metric...

A Dichotomy Hierarchy for Linear Time Subgraph Counting in Bounded Degeneracy Graphs

Subgraph and homomorphism counting are fundamental algorithmic problems. Given a constant-size pattern graph H and a large input graph G , we wish to count the number of H -homomorphisms/subgraphs in G . Given the massive sizes of real-world graphs and the practical importance of...

The Python simulations of chemistry framework: 10 years of an open-source quantum chemistry project

Over the past decade, the Python-based Simulations of Chemistry Framework (PySCF) has developed into a widely used open-source platform for electronic-structure theory and quantum chemical method development. This article reviews the major advances since the previous overview in...

Population-level impacts of reducing artificial light at night across an entire migratory corridor

Artificial light at night (ALAN) is a widespread anthropogenic pollution that poses challenges for wildlife in nearly every ecosystem on planet Earth. Although there has been substantial progress on understanding the effects of ALAN on animal physiology and behaviour, few studies...

eIF5A and polyamines restrict mRNA levels in response to ribosome stalls

Obstacles to translation elongation stall ribosomes and allow deleterious proteins to accumulate, which threatens cellular health. Cells recognize and clear stalled ribosomes via several interrelated pathways, although the mechanisms by which cells distinguish stalled from normal...

Seasonal stratification regulates carbon allocation between particulate and dissolved pathways in the Gulf of Aqaba

Abstract. Water column stratification exerts fundamental control on microbial carbon cycling in oligotrophic areas of the ocean, yet its impact on the partitioning and fate of newly fixed carbon remains insufficiently resolved. Here, we investigated carbon fluxes in the Northern...

Metabolic switching between inorganic and organic phosphorus sustains microbial activity in an ultraoligotrophic ocean

Abstract Phosphorus scarcity constrains microbial activity in parts of the oligotrophic ocean, yet the extent to which dissolved organic phosphorus (DOP) supports microbial P demand remains unresolved. Here, we quantified the concentrations, turnover times, and uptake kinetics of...

Blurring the Boundaries: The “Schooling” of Ethnic Studies and Possibilities for Community-Grounded Praxis

While Ethnic Studies (ES) emerges from deep traditions of subaltern community struggles for liberatory education, the discipline’s expanding institutionalization within K-12 schools surfaces enduring barriers to community-based education. To meet California’s new ES high school g...

Aβ-42 Side Chain Deamidation at Q15 or N27 Modulates Protein Aggregation and Alters Microglial Cytokines and CD68

The progressive aggregation of amyloid beta (Aβ) monomers into oligomers is a critical factor in Alzheimer's disease (AD) pathogenesis. Although mutated forms of Aβ have been shown to display altered aggregation dynamics, the specific effects of deamidated Aβ on microglial functi...

The nutritional value of invertebrate aquatic foods

Abstract Aquatic invertebrates are a diverse, nutrient-dense, and socio-ecologically important food whose contribution to human nutrition is frequently overlooked. We quantify their contribution to global nutrient supplies and estimate the nutrient content of >50,000 macroinverte...

A Causal Examination of the Solar Influence on Holocene Climate

Abstract Variations in Total Solar Irradiance (TSI) have long been hypothesized to influence global mean surface temperature (GMST) on multidecadal to millennial timescales, but empirical evidence has remained elusive. Here, we explore the link between solar variability and clima...

A genomic catalog of Earth’s bacterial and archaeal symbionts

1 SUMMARY Microbial symbiosis drives the functional and phylogenomic diversification of life on Earth, yet remains underexplored due to culturing challenges. This study employed machine learning (ML) to predict symbiotic lifestyles in hundreds of thousands of microbial genomes fr...

Fast Breakdowns Observed in the Initial Leaders of Two Energetic Compact Strokes

Abstract We have observed 1 fast positive breakdown (FPB) and 20 fast negative breakdowns (FNBs) for the first time in the initial leader of two energetic compact strokes (ECSs) using a broadband interferometer. It was found that the FPB propagated upward over a distance of 30 m...

Benchmark Brown Dwarfs as Chemical Laboratories: Linking System Bulk Properties to Atmospheric Retrievals

Abstract We present the first atmospheric retrieval analysis of two compositional benchmark mid-L dwarfs – SDSSJ141659.78+500626.4 and GJ 499 C – using the Brewster retrieval framework, where the wide benchmark nature of these systems provides independent constraints on age and b...

A Survey on Human-AI Collaboration with Large Foundation Models

As the capabilities of artificial intelligence (AI) continue to expand rapidly, Human-AI (HAI) Collaboration, combining human intellect and AI systems, has become pivotal for advancing problem-solving and decision-making processes. The advent of Large Foundation Models (LFMs) has...

A compilation of global bio-optical in situ data for ocean-colour satellite applications – version four

Abstract. A global in situ dataset for validation of satellite products from the ESA Ocean Colour Climate Change Initiative (OC-CCI) is presented. This version of the compilation, with data starting in 1996, extends to 2025, which is important for the validation of recent algorit...

HIPPIE: a generative model for electrophysiological analysis across species, technologies, and modalities

Abstract Neuronal classification from extracellular electrophysiological recordings is challenging due to intrinsic waveform variability, noise, and technical differences across experiments, technologies, and species. We introduce HIPPIE (High-dimensional Interpretation of Physio...

Thermal bottlenecks constrain early-life survival of native fish in regulated rivers

Climate change is reshaping thermal regimes worldwide, threatening species whose early development depends on narrow temperature ranges. Yet directly linking warming to reproductive failure in wild populations remains intractable, particularly in aquatic ecosystems. We developed...