University of Arizona

Aterian Lithic Technology and Functional Studies in North Africa: A Review of Current Evidence and Perspectives

Abstract In North Africa, the Middle Stone Age (MSA) has been associated with the emergence and evolution of Homo sapiens and is considered a pivotal period in the development of behavioral complexity. Recent archaeological discoveries have yielded a range of technological innova...

Orthogonal Light‐ and Enzyme‐Triggered and‐Gate Prodrugs for Senolytic Therapy

ABSTRACT Senescence‐associated β‐galactosidase (SA‐β‐gal) is widely used to target senescent cells, but its activity in non‐senescent tissues can limit selectivity. Here, we developed a light–enzyme AND‐gate strategy in which an o‐nitrobenzyl photocage blocks β‐galactoside cleava...

Cosmogenic 10 Be as a Tracer for Recent Heliospheric Encounters With Interstellar Cold Clouds and Nearby Supernovae

Abstract Recent works suggest there are periods when the Sun encountered massive interstellar cold clouds which compressed the heliosphere to within Earth's orbit, exposing Earth to interstellar galactic cosmic rays and energetic particles of heliospheric origin. We model 10 Be p...

Improving global rainfall erosivity estimates from IMERG using machine learning–based error correction

Rainfall erosivity is a key driver of soil erosion and hydrologic processes, yet its estimation remains limited by sparse gauge observations and uncertainties in satellite precipitation products. This study presents a machine learning–based framework to improve global rainfall er...

Science of Nuclear Fusion: Insights and Ideas

Advances in several physics domains open up novel paths to smaller scale, higher energy density opportunities to advance small systems for nuclear fusion. Here we survey both legacy and several novel “table-top” approaches which attract current interest. We furthermore address a...

Growth Hormone Deficiency and Systemic Metabolic Remodeling: Insights from Metabolomics and Lipidomics

Growth hormone (GH) deficiency (GHD) is a systemic endocrine–metabolic disorder affecting growth, body composition, substrate handling, and cardiometabolic health. Clinical evaluation relies primarily on GH stimulation testing and circulating insulin-like growth factor 1 (IGF-1),...

The Unequal Burden of Environmental and Health Costs of Energy-Intensive Artificial Intelligence.

. 2026;116(10):1529-1538. https://doi.org/10.2105/AJPH.2026.308683).

The DESI Y1 RR Lyrae Catalog. I. Empirical Modeling of the Cyclic Variation of Spectroscopic Properties and a Chemodynamical Analysis of the Outer Halo

Abstract We present the catalog of RR Lyrae stars (RRLs) observed in the first year of operations of the Dark Energy Spectroscopic Instrument (DESI) survey. This catalog contains 6240 RRLs out to ∼120 kpc from the Galactic center and over 12,000 individual epochs with homogeneous...

The DESI Y1 RR Lyrae Catalog. II. The Metallicity Dependency of Pulsational Properties, the Shape of the RR Lyrae Instability Strip, and Metal Rich RR Lyrae

Abstract RR Lyrae stars (RRLs) are valuable probes of both Milky Way assembly and stellar-evolution physics. Using a sample 6240 RRLs obtained in the first year of the Dark Energy Spectroscopic Instrument (DESI) survey, we investigate the metallicity of RRLs and its correlation w...

JWST Nebular Spectroscopy of SN 2023qov: Circumstellar Dust Emission in a Normal Type Ia Supernova

Abstract We present panchromatic observations of the Type Ia supernova (SN Ia) 2023qov, ranging from ∼2 weeks before to ∼1 yr after maximum light. JWST near- and mid-infrared spectra at +276 and +363 days show ∼400 K dust emission that cools by ∼75 K between epochs, the first una...

On the modelling of oblique firehose instabilities in regularised kappa plasmas using ALPS

In situ measurements in space plasmas indicate that the velocity distributions of charged particles are not in thermal equilibrium, deviating from a standard Maxwellian mainly due to anisotropies and suprathermal populations which enhance high-energy tails. Although the standard...

北美高校中文教材与 《国际中文教育中文水平等级标准》 语法匹配情况研究

提要 本文以 《国际中文教育中文水平等级标准》 (2021) 中的 “语法等级大纲” 为依据, 选取北美高校广泛使用的 11 本中文教材, 考察其语法条目的覆盖情况、 等级分布和语法种类。 研究发现, Cheng 和 Tsui 教材平均匹配率最高, 尤其体现在一至三级; 普林斯顿大学出版社教材匹配率较低, 但覆盖等级范围更...

Revisiting lithospheric dripping: Modern crustal xenoliths from the Colombian arc suggest heterogeneous viscosity and cyclic instability development

Lithospheric dripping is often invoked to remove dense material from arcs. However, the thickness, timing, and mechanical properties that lead to detachment of lower arc crust remains poorly constrained. The Mercaderes xenolith suite erupted <280 kyr in the Northern Volcanic Zone...

Priority Effects Shape Interactions Between Invasive Parasites in Darwin's Finches of the Galápagos Islands

ABSTRACT Invasive parasites are a major threat to naïve, island hosts. Furthermore, hosts often deal with multiple parasite taxa (hereon, co‐parasitism), which can directly compete with each other or indirectly interact through the hosts' immune system (i.e., priority effects). S...

Visual duo-ethnography as a practice of care: exploring vulnerability, identity, and pedagogical becoming among immigrant art educators

This study examines visual duo-ethnography as a relational and care-oriented methodological practice in exploring immigrant art educators’ experiences of vulnerability, identity, and pedagogical becoming within cross-cultural contexts. Moving beyond adaptation-centered narratives...

Linear Fluctuation of Interfaces in Glauber–Kawasaki Dynamics

Abstract In this article, we find a scaling limit of the space-time mass fluctuation field of Glauber + Kawasaki particle dynamics around its hydrodynamic mean curvature interface limit. Here, the Glauber rates are scaled by $$K=K_N$$ K = K N (with $$K_N\uparrow \infty $$ K N ↑ ∞...

Broadening The View of Aryl Diazonium Ion Reactivity with Proteins and DNA

Abstract Aryl diazonium ions (ADIs) are well established for their reaction with both proteins and DNA, and yet these reactions have been studied independently without systematic comparison. When electrophilic bioconjugation probes are introduced to environments containing multip...

Nurturing primary students’ identity-enhancing practices through mathematical modeling routines

Abstract Calls for mathematics teaching and learning that fosters critical thinking and problem solving, and cultivates competencies such as collaboration and empathy, require curricular interventions that support students in developing strong mathematics identities. We argue tha...

Disruption of local CTCF binding impairs renin expression and blood pressure response in Dahl salt-sensitive rats

Most genetic variants associated with any complex trait are found in non-coding regions. Multiple studies have reported enrichment in single nucleotide polymorphisms (SNPs) found in specific sequences bound by CCCTCF-binding factor (CTCF). CTCF binds DNA to establish boundaries,...

Ce 3+ ‐Activated BASL Glass With High Verdet Constants and Efficient Luminescence

ABSTRACT Trivalent cerium (Ce 3+ )‐activated optical materials are important for magneto‐optical devices, radiation detection, and advanced photonic systems; however, their performance in oxide glasses has been limited by the instability of Ce 3+ at high concentrations during gla...