University of California, Berkeley

Carrying Firearms and Suicide Risk Among Adolescents

Importance Firearms are the most lethal method of suicide across all ages, with case fatality rates exceeding 90%, warranting urgent public health concern. Understanding how carrying of firearms by adolescents and suicide risk vary by race and ethnicity and by stringency of state...

How the Land Speaks: “Native Culture” as Mediating Politics in Individual–Group Relationality

Abstract Indigenous peoples are often valorized as automatically politicized collective subjects, backgrounding the precise mechanics of individual-to-group political formation. In the case of “Native Hawaiian culture”, a locally invoked category of norms, practices, and knowledg...

The rise of carnivoran mammals in Europe through the lens of body mass

Carnivoran mammals (cats, dogs, bears, seals, etc.) and their kin radiated during the Palaeogene, among other carnivorous clades (hyaenodonts, mesonychians, and oxyaenodonts). This radiation has often been framed as a competition ultimately won by carnivorans, but the data suppor...

FullMS2Former:A Transformer Model for Near-CompletePrediction of Peptide Tandem Mass Spectra

Abstract Accurate prediction of peptide tandem mass spectra is essential for confident peptide identification. Existing deep learning models achieve high similarity to experimental spectra but remain constrained by fixed fragment dictionaries of common fragment ions, limiting the...

Hydration-dependent exciton-phonon coupling in a metal-organic framework photocatalyst

Abstract Metal-organic frameworks (MOFs) have potential for light-harvesting applications owing to their tunable optoelectronic properties via building block selection. The presence of bound solvent in MOFs is known to impact gas adsorption properties, but little is known about t...

Pike Use in Megafauna Hunting and Antipredator Defense: Historical Techniques and Paleolithic Research

This paper presents a comprehensive assessment of megafauna confrontation using pikes, as recorded in historical accounts and ethnographic studies depicting techniques of hunter-gatherers, pastoralists, colonial hunters and others. In contrast to the two other basic spear types,...

The evolution of genetic drift over 50,000 generations

Abstract Random variation in reproductive success–genetic drift–profoundly shapes genetic diversity and evolutionary trajectories. The strength of drift depends on the variance in descendant number, σ2d, which governs key evolutionary outcomes: for instance, the establishment pro...

Hidden Cost of Re-Engagement: Workload in Dynamic Multi-Operator Supervision of Autonomous Systems

Autonomous systems are increasingly shifting from single-agent oversight to distributed fleet supervision, where operators alternate between monitoring, waiting, and brief intervention. We examined whether multi-operator, multi-agent supervision preserves objective performance wh...

Slow change blindness from serial dependence: slowly changing objects are perceived as biased toward the past

Abstract Background Slow change blindness, when attentive observers fail to notice large changes that happen gradually, raises questions about how visual information is combined across time. One plausible integration strategy is serial dependence: blending information from the re...

Opioid-induced respiratory depression or oversedation risk assessment in hospitalized patients with cancer receiving palliative care

Purpose The Oversedation Risk Criteria (ORC) is a prediction model that estimates prescription opioid-induced respiratory depression (OIRD) or oversedation risk in hospitalized patients. The study objectives were to estimate OIRD/oversedation risk via the ORC and to determine the...

Scaffold Fiber Architecture and Uniaxial Stretch Differentially Regulate Cell and Nuclear Morphology in Human Dermal Fibroblasts.

Cellular and nuclear morphology, together with directional alignment, are fundamental determinants of cell function and play critical roles in the formation, organization, and maintenance of functional fibrous connective tissues. In tissue-engineered systems, these characteristic...