Iowa State University

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...

Comparison of the Error Incurred in the Measurement of Nonblinking, Nonpoint-Source Objects Using Classical and Quantum Imaging

Abstract We present another step in our efforts to expand far-field imaging beyond the diffraction limit and beyond the limitations imposed by fluorescent labels. The model system we examine is based on the exploitation of entangled photon pairs at 810 nm generated by spontaneous...

Rail or river rivalry? Intermodal transportation of grain through Mississippi Corridors from 2002 to 2013

U.S. grain farming occurs predominantly throughout the vast Midwest. U.S. railroads as well as barges operating on the Mississippi River have played key roles in the regional grain supply chain. While research has been done about U.S. grain transportation, surprisingly little is...

Changes in the translational landscape during red clover necrotic mosaic virus infection

ABSTRACT Viruses alter host gene expression to create a proviral environment, while the host simultaneously regulates gene expression to restrict viral spread. Owing to RNA viruses’ complete reliance on the host translational machinery, it is important to assess translational con...

324. Behavioral Responses of Impaired Feedlot Cattle After Chronic Pen Entry and Associations with Time to Death.

Abstract In feedlots, chronically impaired cattle are often moved to specialized pens, where they have easier access to resources and to facilitate monitoring and care. Understanding how chronic cattle transition into this new environment may provide insights into their likelihoo...

Bilingualism shapes neural control: Distinct experiences predict conflict monitoring and sustained attentional control

Abstract The present study used event-related potentials to examine how bilingual experiences shape neural responses to contextual cues and conflict resolution. Fifty bilingual undergraduates completed a context-specific proportion congruency (CSPC) Stroop task while electroencep...

Genetic Modeling of Dyadic Behavioral Traits: Implications for Estimation and Interpretation of Variance Components

Studying the genomic control of dyadic social interactions is gaining traction in animal genetics. However, genetic modeling of social interactions poses several challenges, one of which is whether social interactions should be treated as dyadic traits or as aggregated traits at...

Training-free post-disaster damage estimation with incomplete satellite images by integrating open data and fractional hot deck imputation

Abstract Analyzing satellite imagery is an essential step after a severe natural disaster for monitoring the level of damage and making the best decision. The current study proposes a fast post-disaster damage framework incorporating the remote sensing of imagery, entropy calcula...

Field Inversion Machine Learning for Time-Resolved Unsteady Flows in Airfoil Dynamic Stall

While many existing machine learning studies have focused on augmenting Reynolds-averaged Navier–Stokes (RANS) turbulence models for steady or time-averaged unsteady flows, this paper takes a first step toward extending such augmentation to time-resolved unsteady flows. An unstea...

Breaking bonds on graphical processing units: Scalable implementations of the density-fitted CR-CC(2,3) and ΛCCSD(T) approaches

Efficient scalable implementations are presented for two single-reference coupled-cluster (CC) methods with non-iterative corrections for triple excitations, which accurately describe single bond dissociations in molecules in contrast to the standard CCSD(T) approach. These metho...

Mixed Valence-Driven Phase Evolution and Property Tuning in PdSe2

Abstract Layered palladium diselenide (PdSe2) is an emerging functional dichalcogenide whose structural flexibility enables tunable electronic, magnetic, and transport properties. However, controlled access to compositionally substituted and metastable polymorphs remains challeng...

Phosphorus limits the growth of bacterial and eukaryotic primary producers in recently deglaciated High Arctic soils

Glaciers are receding at unprecedented rates worldwide, exposing large areas of barren sediment that are quickly colonized by microbes. Nutrient availability is a critical driver of early ecosystem succession, but in the High Arctic its role has remained uncertain. This limits me...

MaizeEar‐SAM: Zero‐shot maize ear phenotyping

Abstract Quantifying the variation in yield component traits of maize ( Zea mays L.), which collectively determine the overall productivity of this globally significant crop, is critical to plant genetics research, plant breeding, and the development of improved agronomic practic...

Functional analysis of the methanobactin-encoding gene cluster of Methylocystis sp. strain SB2

ABSTRACT Methanobactins (MBs) are ribosomally synthesized, post-translationally modified polypeptides that have high binding affinities for copper. The key step for post-translational modification of the MB polypeptide precursor is the formation of two heterocyclic rings (pyrazin...

Reynolds-averaged closure modelling of the energy equation for compressible wall turbulence based on the bold italic k minus bold italic omega k − ω $\boldsymbol{k-\omega}$ equations

Wall cooling in hypersonic turbulent boundary layers produces an off-wall temperature maximum at which the turbulent heat flux vanishes, and the normally secondary turbulent kinetic-energy transport becomes locally important. We formulate an algebraic closure for the correspondin...

Beyond the weigh-in: Assessing population-level consequences of Largemouth Bass tournament mortality

Abstract Objective Fishing mortality can be a key factor regulating fish populations. Although harvest mortality previously regulated many Largemouth Bass Micropterus nigricans populations, tournament mortality is commonly believed to have been the primary source of fishing morta...

Criminal Subcultural Embeddedness: An Introduction of a Multi-dimensional Construct of Criminal Subcultural Immersion

Drawing on survey data from 1,418 U.S. males, we examine three components of subcultural involvement that are theoretically related to crime: criminal friends, a code of the streets that encourages violence, and attitudes against informing. We use structural equation modeling (SE...

Pre‐Service English Teachers' Peer Corrective Feedback Practices in L2 Pronunciation

ABSTRACT While research in instructed second language acquisition (ISLA) emphasizes the positive impact of corrective feedback (CF) in improving L2 pronunciation skills, teachers often provide feedback inconsistently and focus primarily on segmental, word‐level issues. This is us...

Natural variation in GmSOP5 regulates seed oil and protein content during soybean domestication

ABSTRACT Seed oil content, protein content, and yield are agronomically important, correlated traits that determine the economic value of soybean ( Glycine max ). However, improving seed quality and yield simultaneously is challenging because gains in one breeding target often co...

A review of falling weight deflectometer backcalculation methods for pavement moduli prediction

This paper presents a comprehensive review of the major approaches used to estimate pavement layer moduli from Falling Weight Deflectometer (FWD) data, covering static, dynamic, and machine learning based backcalculation methods. Commonly used static backcalculation tools are exa...