450 results match your criteria: "University of Maryland at College Park.[Affiliation]"

Gender and Generation: Landownership and Older Indians' Autonomy.

Fem Econ

October 2023

National Council of Applied Economic Research, New Delhi, Delhi, India.

While increased access to household assets has been shown to improve older individuals' autonomy and bargaining power at home, the role of gender hierarchy in shaping differential impacts of household assets has received far less attention. This article explores the gender asymmetry in the association of older people's (age 60 years or more) decision-making power at home and survival probability with their ownership of and managerial control over agricultural land in rural India. Using data from the India Human Development Survey, results find that in multi-generational households, landownership at the household level is associated with higher decision-making power and survival probability for older men but not for older women.

View Article and Find Full Text PDF

ShaderNN: A Lightweight and Efficient Inference Engine for Real-time Applications on Mobile GPUs.

Neurocomputing (Amst)

January 2025

Department of Electrical and Computer Engineering, University of Maryland at College Park, 8223 Paint Branch Dr, College Park, MD, 20740, USA.

Inference using deep neural networks on mobile devices has been an active area of research in recent years. The design of a deep learning inference framework targeted for mobile devices needs to consider various factors, such as the limited computational capacity of the devices, low power budget, varied memory access methods, and I/O bus bandwidth governed by the underlying processor's architecture. Furthermore, integrating an inference framework with time-sensitive applications - such as games and video-based software to perform tasks like ray tracing denoising and video processing - introduces the need to minimize data movement between processors and increase data locality in the target processor.

View Article and Find Full Text PDF

Cross-resistance between strain AFS009 metabolites (Howler EVO) and fludioxonil in .

Plant Dis

January 2025

Clemson University, Entomology, Soils, and Plant Sciences, 120 Long Hall, Clemson, South Carolina, United States, 29634-0315;

Howler EVO is a biological fungicide based on metabolites of the bacterium Pseudomonas chlororaphis strain AFS009. One of the metabolites, pyrrolnitrin (PRN), is a chemical analogue of the phenylpyrrole fludioxonil used to manage gray mold of fruit crops caused by Botrytis cinerea. Resistance to fludioxonil in B.

View Article and Find Full Text PDF

Assessing inequities in electrification via heat pumps across the US.

Joule

December 2024

Department of Environmental and Natural Resource Economics, College of the Environment and Life Sciences, University of Rhode Island, Kingston, RI 02881, USA.

Heat pumps are an energy-efficient and increasingly cost-effective solution for reducing greenhouse gas emissions in the building sector. However, other clean energy technologies, such as rooftop solar, are less likely to be adopted in underserved communities, and thus policies incentivizing their adoption may funnel support to well-resourced communities. Unlike previously studied technologies, the effects of heat pumps on household energy bills may be positive or negative depending on local climate, energy costs, building features, and other factors.

View Article and Find Full Text PDF

A nonequilibrium kinetic model of high-resolution vibrational energy transfer in RDX from selective IR excitation.

J Chem Phys

December 2024

Center for Engineering Concepts Development, Department of Mechanical Engineering, University of Maryland at College Park, College Park, Maryland 20742, USA.

In this paper, we develop a model based on a second quantization-with anharmonic phonon scattering and the phonon Boltzmann transport equation-to study precise high-resolution nonequilibrium vibrational energy transfer (VET) under selective phonon excitation in cyclotrimethylene trinitramine. We simulate mid-infrared pump-probe spectroscopy and observe a prompt appearance (<1 ps) of broad-spectrum intensity, which agrees well with experimental data in the literature. The selective excitation of phonons at different frequencies reveals distinct VET pathways and the kinetic evolution of mode occupations as the system reaches a new equilibrium temperature.

View Article and Find Full Text PDF

Oceanic and ionospheric tidal magnetic fields extracted from global geomagnetic observatory data.

Philos Trans A Math Phys Eng Sci

December 2024

Earth System Science Interdisciplinary Center, University of Maryland at College Park, College Park, MD, USA.

Ocean tide generated magnetic fields contain information about changes in ocean heat content and transport that can potentially be retrieved from remotely sensed magnetic data. To provide an important baseline towards developing this potential, tidal signals are extracted from 288 land geomagnetic observatory records having observations within the 50-year time span 1965-2015. The extraction method uses robust iteratively reweighted least squares for a range of models using different predictant and predictor assumptions.

View Article and Find Full Text PDF

Resistance of Boron Nitride Nanotubes to Radiation-Induced Oxidation.

J Phys Chem C Nanomater Interfaces

October 2024

Department of Materials Science and Engineering, University of Maryland at College Park, College Park, Maryland 20742, United States.

We present unprecedented results on the damage thresholds and pathways for boron nitride nanotubes (BNNT) under the influence of energetic electrons in an oxidative gas environment, using an environmental aberration-corrected electron microscope over a range of oxygen pressures. We observe a damage cascade process that resists damage until a higher electron dose, compared with carbon nanotubes, initiating at defect-free BNNT sidewalls and proceeding through the conversion from crystalline nanotubes to amorphous boron nitride (BN), resisting oxidation throughout. We compare with prior results on the oxidation of carbon nanotubes and present a model that attributes the onset of damage in both cases to a physisorbed oxygen layer that reduces the threshold for damage onset.

View Article and Find Full Text PDF

Urinary tract infections and catheter-associated urinary tract infections caused by .

Microbiol Mol Biol Rev

December 2024

Department of Cell Biology and Molecular Genetics, University of Maryland at College Park, College Park, Maryland, USA.

Article Synopsis
  • * CAUTIs are complicated by various pathogens known as ESKAPE pathogens, which differ in how they infect, their initial microbial load, and how infection and disease symptoms develop over time.
  • * This review focuses on understanding the specific pathogen responsible for certain UTIs and CAUTIs, its unique virulence factors, and research on how these infections begin and develop, aiming to find strategies to prevent them.
View Article and Find Full Text PDF
Article Synopsis
  • The study explores the integration of Large Language Models (LLMs) in healthcare, noting their potential for improving diagnostics and patient care while also highlighting their vulnerability to adversarial attacks.
  • It reveals that both open-source and proprietary LLMs can be manipulated during medical tasks using real-world patient data, with more advanced models requiring specific adversarial data for effective attacks.
  • The findings emphasize the importance of developing strong security measures and defensive strategies to protect LLMs in healthcare, ensuring their safe implementation.
View Article and Find Full Text PDF
Article Synopsis
  • Bats are increasingly recognized as valuable models for aging research due to their long lifespan, living over 20 to 40 years in the wild or captivity.
  • Their unique biological traits, such as resistance to viral infections and efficient DNA repair mechanisms, offer insights that could enhance healthy aging in humans.
  • The review discusses eight specific areas where bat research can inform our understanding of aging, including genetics, immunity, neurobiology, and even aspects related to menopause, making bats potentially more relevant to human aging studies than traditional lab animals like rodents.
View Article and Find Full Text PDF

Insoluble Acyclic Cucurbit[n]uril-Type Receptors Capture Iodine from the Vapor Phase.

Chemistry

November 2024

Department of Chemistry and Biochemistry, University of Maryland at College Park, College Park, MD, 20742, United States.

Nuclear energy makes large contributions toward meeting global energy needs, but societal concerns remain high given the impacts of the intended release of radioactive materials including I and I. In this paper we explore the use of a homologous series of acyclic CB[n] type hosts (H1-H4) as adsorbents of iodine from the vapor phase. We find that H2-H4, but not H1 - perform well in this application with uptake capacities of 2.

View Article and Find Full Text PDF

Long-form audio recordings are increasingly used to study individual variation, group differences, and many other topics in theoretical and applied fields of developmental science, particularly for the description of children's language input (typically speech from adults) and children's language output (ranging from babble to sentences). The proprietary LENA software has been available for over a decade, and with it, users have come to rely on derived metrics like adult word count (AWC) and child vocalization counts (CVC), which have also more recently been derived using an open-source alternative, the ACLEW pipeline. Yet, there is relatively little work assessing the reliability of long-form metrics in terms of the stability of individual differences across time.

View Article and Find Full Text PDF

Diribonuclease activity eliminates toxic diribonucleotide accumulation.

Cell Rep

September 2024

Department of Cell Biology and Molecular Genetics, University of Maryland at College Park, College Park, MD 20742, USA. Electronic address:

RNA degradation is a central process required for transcriptional regulation. Eventually, this process degrades diribonucleotides into mononucleotides by specific diribonucleases. In Escherichia coli, oligoribonuclease (Orn) serves this function and is unique as the only essential exoribonuclease.

View Article and Find Full Text PDF

Unmasking and quantifying racial bias of large language models in medical report generation.

Commun Med (Lond)

September 2024

National Institutes of Health (NIH), National Library of Medicine (NLM), National Center for Biotechnology Information (NCBI), Bethesda, MD, 20894, USA.

Background: Large language models like GPT-3.5-turbo and GPT-4 hold promise for healthcare professionals, but they may inadvertently inherit biases during their training, potentially affecting their utility in medical applications. Despite few attempts in the past, the precise impact and extent of these biases remain uncertain.

View Article and Find Full Text PDF

A variety of fish species have proven instrumental in the investigation of evolution, behavior, ecology, and physiology, among many other fields. Many model systems (e.g.

View Article and Find Full Text PDF

Objective: The objective is to comprehensively classify the types, topics and populations represented in the published lacrosse literature.

Design: Mapping review. Protocol registration at Open Science Framework (https://osf.

View Article and Find Full Text PDF

Power supply disruptions deter electric vehicle adoption in cities in China.

Nat Commun

July 2024

Department of Economics, Virginia Tech, Blacksburg, VA, 24060, USA.

Electrification plays a crucial role in deep decarbonization. However, electrification and power infrastructure can cause mutual challenges. We use nationwide power outage and electric vehicle adoption data in China to provide empirical evidence on how power infrastructure failures can deter electrification.

View Article and Find Full Text PDF

Lifetime abortion incidence when abortion care is covered by Medicaid: Maryland versus five comparison states.

Health Serv Res

October 2024

Maryland Population Research Center and Department of Sociology, University of Maryland at College Park, College Park, Maryland, USA.

Objective: To estimate the association of Medicaid coverage of abortion care with cumulative lifetime abortion incidence among women insured by Medicaid.

Data Sources And Study Setting: We use 2016-2019 (Pre-Dobbs) data from the Survey of Women studies that represent women aged 18-44 living in six U.S.

View Article and Find Full Text PDF

Introduction/aims: Conventional F wave analysis involves a relatively uniform physiological environment induced by supramaximal stimulations. The F wave characteristics in a dynamic physiological condition, however, are rarely investigated. This study aimed to improve understanding of F wave properties in the more dynamic process by introducing a novel method to analyze F waves based on the compound muscle action potential (CMAP) scan technique.

View Article and Find Full Text PDF

Cognitive workload is a measure of the mental resources a user is dedicating to a given task. Low cognitive workload produces boredom and decreased vigilance, which can lead to an increase in response time. Under high cognitive workload the information processing burden of the user increases significantly, thereby compromising the ability to effectively monitor their environment for unexpected stimuli or respond to emergencies.

View Article and Find Full Text PDF
Article Synopsis
  • Climate change is shifting habitats for species and increasing the transmission of many pathogens, particularly those affecting humans and crops.
  • The thermal tolerance of both hosts and pathogens is crucial for predicting disease outcomes, with studies often lacking for fungal pathogens in wild plants.
  • Research on the fungal pathogen Microbotryum lychnidis-dioicae indicates that higher temperatures hinder the pathogen's growth and infection capability, while host plants remain resilient, potentially leading to reduced disease spread in a warming climate.
View Article and Find Full Text PDF

While machine coding of data has dramatically advanced in recent years, the literature raises significant concerns about validation of LLM classification showing, for example, that reliability varies greatly by prompt and temperature tuning, across subject areas and tasks-especially in "zero-shot" applications. This paper contributes to the discussion of validation in several different ways. To test the relative performance of supervised and semi-supervised algorithms when coding political data, we compare three models' performances to each other over multiple iterations for each model and to trained expert coding of data.

View Article and Find Full Text PDF

Machine learning (ML) identification of covalently ligandable sites may accelerate targeted covalent inhibitor design and help expand the druggable proteome space. Here, we report the rigorous development and validation of the tree-based models and convolutional neural networks (CNNs) trained on a newly curated database (LigCys3D) of over 1000 liganded cysteines in nearly 800 proteins represented by over 10,000 three-dimensional structures in the protein data bank. The unseen tests yielded 94 and 93% area under the receiver operating characteristic curves for the tree models and CNNs, respectively.

View Article and Find Full Text PDF

There is no relationship more vital than the one a child shares with their primary caregivers early in development. Yet many children worldwide are raised in settings that lack the warmth, connection, and stimulation provided by a responsive primary caregiver. In this study, we used data from the Bucharest Early Intervention Project (BEIP), a longitudinal study of institutionally-reared and family-reared children, to test how caregiving quality during infancy is associated with average EEG power over the first 3.

View Article and Find Full Text PDF