41,716 results match your criteria: "College Station[Affiliation]"

Multipliers on bi-parameter Haar system Hardy spaces.

Math Ann

May 2024

Department of Mathematics, Texas A &M University, College Station, TX 77843-3368 USA.

Let denote the standard Haar system on [0, 1], indexed by , the set of dyadic intervals and denote the tensor product , . We consider a class of two-parameter function spaces which are completions of the linear span of , . This class contains all the spaces of the form (), where and are either the Lebesgue spaces or the Hardy spaces , .

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Introduction: The Longan fruit tree of the Vietnam Mekong Delta is grown in raised beds to improve water drainage during the rainy season and can live as long as 100 years.

Objective: This research explores the extent to which the soil microorganisms as well as soil physical and chemical properties of these raised beds degrade over a period of 60 years under traditional management practices.

Materials And Methods: Raised bed topsoil samples at depths of 0-20 cm were obtained from four different Longan orchards raised bed age groups: group 1) 15-25 years (L1-L5); group 2) 26-37 years (L6-L10); group 3) 38-45 years (L11-L15); and group 4) 46-60 years.

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Amino Acid Transfer Free Energies Reveal Thermodynamic Driving Forces in Biomolecular Condensate Formation.

bioRxiv

December 2024

Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.

The self-assembly of intrinsically disordered proteins into biomolecular condensates shows a dependence on the primary sequence of the protein, leading to sequence-dependent phase separation. Methods to investigate this sequence-dependent phase separation rely on effective residue-level interaction potentials that quantify the propensity for the residues to remain in the dilute phase versus the dense phase. The most direct measure of these effective potentials are the distribution coefficients of the different amino acids between the two phases, but due to the lack of availability of these coefficients, proxies, most notably hydropathy, have been used.

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Fungal sexual reproduction is controlled by the mating-type () locus. In contrast to a majority of species in the phylum Basidiomycota that have tetrapolar mating-type systems, the opportunistic human pathogen employs a bipolar mating-type system, with two mating types ( and α) determined by a single locus that is unusually large (~120 kb) and contains more than 20 genes. While several genes are associated with mating and sexual development, others control conserved cellular processes (e.

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Artificial intelligence in food and nutrition evidence: The challenges and opportunities.

PNAS Nexus

December 2024

Department of Nutrition, Texas A&M University, Cater-Mattil Hall, 373 Olsen Blvd Room 130, College Station, TX 77843, USA.

Science-informed decisions are best guided by the objective synthesis of the totality of evidence around a particular question and assessing its trustworthiness through systematic processes. However, there are major barriers and challenges that limit science-informed food and nutrition policy, practice, and guidance. First, insufficient evidence, primarily due to acquisition cost of generating high-quality data, and the complexity of the diet-disease relationship.

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A High-Throughput Droplet-based Method to Facilitate Microbial Conjugation.

Bio Protoc

December 2024

Department of Electrical and Computer Engineering, Texas A & M University, College Station, TX, USA.

Droplet microfluidic platforms have been broadly used to facilitate DNA transfer in mammalian and bacterial hosts via methods such as transformation, transfection, and conjugation, as introduced in our previous work. Herein, we recapitulate our method for conjugal DNA transfer between strains in a droplet for increased conjugation efficiency and throughput of an otherwise laborious protocol. By co-incubating the donor and recipient strains in droplets, our method confines cells into close proximity allowing for increased cell-to-cell interactions.

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Acculturative stress among Latino youth: A bioecological framework.

Adv Psychiatry Behav Health

September 2024

Department of Psychiatry and Behavioral Sciences, School of Medicine, Texas A&M University, College Station, TX.

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Conformational switching of Arp5 subunit regulates INO80 chromatin remodeling.

Nucleic Acids Res

December 2024

Department of Epigenetics and Molecular Carcinogenesis, UT MD Anderson Cancer Center, 1901 East Rd., Houston, TX 77054, USA.

The INO80 chromatin remodeler is a versatile enzyme capable of several functions, including spacing nucleosomes equal distances apart, precise positioning of nucleosomes based on DNA shape/sequence and exchanging histone dimers. Within INO80, the Arp5 subunit plays a central role in INO80 remodeling, evidenced by its interactions with the histone octamer, nucleosomal and extranucleosomal DNA, and its necessity in linking INO80's ATPase activity to nucleosome movement. We find two distinct regions of Arp5 binding near the acidic pocket of nucleosomes.

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Biomedical research on advanced cryopreservation has spillover effects on innovation in the food and agricultural sector. Advanced biopreservation technology has three key domains of impact in the food system: (1) improving efficiencies in storage and utilization of gametes and organoids for plant and animal breeding; (2) isochoric methods for preservation of fresh food products; and (3) in biorepositories for storage of genetic resources for agriculturally significant plants and livestock species.

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A novel fluorescent i-motif DNA silver nanoclusters system has been developed for visualization of reactive oxygen species in plants, enabling the detection of intracellular signaling in plant cells. Reactive oxygen species (ROS) are crucial in plant growth, defense, and stress responses, making them vital for improving crop resilience. Various ROS sensing methods for plants have been developed to detect ROS in vitro and in vivo.

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Male Down syndrome Ts65Dn mice have impaired bone regeneration.

Bone

December 2024

Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, United States of America. Electronic address:

Trisomy of human chromosome 21 (Ts21) individuals present with a spectrum of low bone mineral density (BMD) that predisposes this vulnerable group to skeletal injuries. To determine the bone regenerative capacity of Down syndrome (DS) mice, male and female Dp16 and Ts65Dn DS mice underwent amputation of the digit tip (the terminal phalanx (P3)). This is a well-established mammalian model of bone regeneration that restores the amputated skeletal segment and all associated soft tissues.

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The current study explores whether expressing feelings about violence through journal or notebook and/or school assignment might be associated with a decrease in delinquent activities, such as substance use, theft of property, and assaultive behaviors. A cross-sectional study with purposive sampling was conducted. The participants were comprised of African American adolescents in four Chicago's Southside neighborhoods.

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Article Synopsis
  • * This study focused on measuring the ice nucleation rate of 2-methyltetrols (2-MT), a component of certain organic aerosols, and found that as the aerosol's viscosity increases, its ice nucleation ability also increases significantly, especially when transitioning from liquid to semisolid states.
  • * A new model based on classical nucleation theory was created to quantify the relationship between viscosity and ice nucleation rate, which can be used in climate models to better represent cir
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Mitochondrial membrane phospholipid cardiolipin is essential for the stability of several inner mitochondrial membrane protein complexes. We recently showed that the abundance of mitochondrial magnesium channel MRS2 is reduced in models of Barth syndrome, an X-linked genetic disorder caused by a remodeling defect in cardiolipin. However, the mechanism underlying the reduced abundance of MRS2 in cardiolipin-depleted mitochondria remained unknown.

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Article Synopsis
  • The LUX-ZEPLIN (LZ) experiment is a significant scientific study using a dual-phase xenon chamber located underground in South Dakota to search for dark matter interactions.
  • The study extends existing theories to include relativistic effects, providing new constraints on the interactions between weakly interacting massive particles and nucleons based on their electric and magnetic dipole moments.
  • Results include 90% confidence level limits on the coupling strength of five different interactions, analyzed over a specific energy range, which advances our understanding in particle physics beyond previous nonrelativistic effective field theories.
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Sulfur-functionalized sawdust biochar for enhanced cadmium adsorption and environmental remediation: A multidisciplinary approach and density functional theory insights.

J Environ Manage

December 2024

School of Chemistry and Chemical Engineering, David Keir Building, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland, UK. Electronic address:

Pristine biochar typically exhibits limited capacity for heavy metal adsorption due to its inadequate pore development and insufficient surface functionality. This study introduces an innovative chemical strategy to enhance the surface of sawdust biochar with sulfur-based functional groups (C=S, C-S, S-S, S, S-H, -SO, -SO) to significantly improve cadmium (Cd) adsorption. Sulfur-doping using HSO, NaS, and NaSO markedly increased the sulfur content from 0.

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Joint mirror procedure: controlling false discovery rate for identifying simultaneous signals.

Biometrics

October 2024

Department of Statistics, Texas A&M University, College Station, TX 77843, United States.

In many applications, the process of identifying a specific feature of interest often involves testing multiple hypotheses for their joint statistical significance. Examples include mediation analysis, which simultaneously examines the existence of the exposure-mediator and the mediator-outcome effects, and replicability analysis, aiming to identify simultaneous signals that exhibit statistical significance across multiple independent studies. In this work, we present a new approach called the joint mirror (JM) procedure that effectively detects such features while maintaining false discovery rate (FDR) control in finite samples.

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Honey bee foraging is a complex behavior because it involves tens of thousands of organisms making decisions about where to collect pollen and nectar based on the quality of resources and the distance to flowers. Studying this aspect of their biology is possible through direct observations but the large number of individuals involved in this behavior makes the implementation of technologies ideal to scale up this type of study. Consequently, there is a need for instruments that can facilitate accurate assessments of honey bee foraging at the colony level.

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Approach advancements for engineering novel peptide analogs of existing lantibiotics: where are we today?

Expert Opin Drug Discov

December 2024

Department of Biology, Texas A&M University, College Station, TX, United States.

Introduction: The emergence of antibiotic resistance among the clinically important bacterial pathogens has increased healthcare costs and reduced patient safety and quality of life. Lantibiotics is a large class of ribosomally synthesized, and posttranslationally modified peptides have been the primary focus of numerous research aimed at discovering compounds for treating bacterial infections.

Areas Covered: The article explains the most up to date hierarchy of methods followed in the field for high throughput screening of lantibiotics/analogs with improved therapeutic properties.

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Seafood toxicant exposure during pregnancy, lactation, and childhood and child outcomes: A scoping review.

Adv Nutr

December 2024

Texas A&M Agriculture, Food and Nutrition Evidence Center, Fort Worth, Texas, United States; Department of Nutrition, Texas A&M University, College Station, Texas, United States.

Background: Determining dietary recommendations for seafood consumed during pregnancy, lactation, and childhood requires consideration of the known nutritional benefits and potential harm due to toxicant exposure as they relate to child outcomes.

Objectives: To describe the scope of the evidence associated with seafood-related toxicant exposure and child outcomes and to identify toxicant-outcome pairs that may have sufficient evidence to conduct a systematic review.

Methods: We included studies examining seafood toxicant exposure during pregnancy, lactation, and childhood, and child outcomes.

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Current tick control measures are focused on the use of synthetic acaricides and personal protective measures. However, the emergence of acaricide resistance and the maintenance of tick populations in wildlife has precluded the efficient management of ticks. Thus, host-targeted, non-chemical control measures are needed to reliably reduce ticks parasitizing sylvatic reservoirs.

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Article Synopsis
  • Recent advancements in extracellular vesicle (EV) biology are recognized for their potential impact on health and disease, particularly in vision research.
  • The National Eye Institute (NEI) highlighted EV research in its 2021-2025 Strategic Plan as a key focus area within Regenerative Medicine.
  • A workshop was held with twenty experts to assess the state of EV research and identify opportunities for its application in diagnosing and treating eye diseases.
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