S Smith

Importance of manganese uptake in uropathogenic Escherichia coli CFT073 during urinary tract infection

Arwen E. Frick-Cheng, O. O. Adesunloro, B. Cobine, H. Heithoff et autres

ABSTRACT Urinary tract infections (UTIs) are the second most common bacterial infection, with the majority of cases caused by uropathogenic Escherichia coli (UPEC). To establish infection, UPEC requires iron and other transition metals to support essential metabolic processes. In response, the host …

us (code pays fourni par la source)

BERTopic-driven term extraction from biomedical texts toward ontology population: evaluating vaccine ontology with Plotkin’s vaccines corpus

B. Damayanthi Jesudas, S Smith, Feng-Yu Yeh, Jie Zheng et autres

BACKGROUND: Ontologies are essential for structuring biomedical knowledge, supporting semantic integration, reasoning, and data interoperability. In vaccinology, ontology population is particularly critical, as vaccines span diverse domains. A well-defined Vaccine Ontology enables consistent knowledge representation, integration across datasets, and supports applications such …

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The Euler Characteristic Transform Enables Classification of Complex Plant Shapes and Prediction of Leaf Venation from Blade Geometry

Yemeen Ayub, Sarah McGuire-Scullen, Sarah Percival, William N. Weaver et autres

Summary (1) Rationale Quantifying and predicting plant morphology is central to understanding development and evolution, yet many plant forms lack homologous features required for traditional morphometrics. We apply the Euler Characteristic Transform (ECT), an injective descriptor from topological data analysis, to encode …

us, Algérie, mx, ni, be, Nigéria, ch, ca (code pays fourni par la source)

bifrost : an R package for scalable inference of phylogenetic shifts in multivariate evolutionary dynamics

Jacob S. Berv, Nathan Fox, Matt J. Thorstensen, Henry O. Lloyd-Laney et autres

Abstract High-dimensional comparative datasets, including geometric morphometric landmarks, functional traits, and other large trait datasets, are increasingly common in biology. When these datasets include a large number of traits relative to the number of taxa, they pose significant challenges for phylogenetic comparative …

us, ca, gb (code pays fourni par la source)

Assembling the Neotropical Tree Flora: Andean Uplift and the Historical Biogeography of the Brazil Nut Family (Lecythidaceae)

Diana Medellín-Zabala, Joseph L. M. Charboneau, Oscar M. Vargas, S Smith et autres

ABSTRACT Aim The assembly of tropical tree floras is complex, involving many lineage‐specific histories; however, focusing on the biogeographic history of diverse clades can reveal general patterns. We investigated the historical biogeography of the ecologically important Brazil nut clade (Lecythidoideae) to: (1) …

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PLANeT: Understanding and leveraging the genome of land plants for a sustainable future

Li Wang, Mohamed Amar, Carlos I. Arbizu, John L. Bowman et autres

Land plants underpin civilization and planetary health, yet their genomic diversity remains largely uncharted. Current resources are unstandardized and scarce, lacking reference genomes for 95% of genera, 70% of families, and 51% of orders, impeding evolutionary and functional insight. We thus propose …

cn, Égypte, pe, au, sg, us, gb, Afrique du Sud, Madagascar, ca, cl, br, sa, de (code pays fourni par la source)

Towards Healthy Aging through Semantic Enrichment.

John Beverley, Julie C. Bowker, Hollen N. Reischer, Rachel A. Mavrovich et autres

This paper introduces two interoperable ontologies-SOLO (Solitude Ontology) and GERO (Gerotranscendence Ontology)-developed to formalize key psychological constructs relevant to healthy aging. Grounded in the Behavioral Change Intervention Ontology, the ontologies clarify distinctions between terms such as solitude, loneliness, self-transcendence, and gerotranscendence, and …

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Receive-Only Surface Coil with Improved Detuning for Pre-Clinical MRI Studies

S. Rescia, S Smith

The Musicians' Table

Suzanne Wijsman, Paul B. Wright, Nancy Wright, Susannah Gent et autres

Vasoconstriction with norepinephrine causes less forearm insulin resistance than a reflex sympathetic vasoconstriction.

Kenneth Jamerson, S Smith, John V. Amerena, Eric J. Grant et autres

We used the insulin-perfused human forearm model to assess the effects of vasoconstriction induced with norepinephrine on the extraction of glucose in the forearm in two groups of healthy young volunteers. The norepinephrine findings were compared with a previously studied group in …

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Multiple-angle, variable-interval, nonorthogonal MRI

MA Reicher, RB Lufkin, S Smith, B D Flannigan et autres

Multiple-angle, variable-interval, nonorthogonal (MAVIN) MRI is a new, time-saving technique that allows for the independent choice of slice angle and position for each slice in a multiangle pulse sequence. By appropriate adjustment of the slice-select radiofrequency pulse and the slice-select and readout …

Solenoid surface coils in magnetic resonance imaging

RB Lufkin, Jan Votruba, MA Reicher, L W Bassett et autres

A nonplanar solenoidal surface radiofrequency coil is used as a receiver with a conventional transmitter coil in a magnetic resonance imaging system. The improved signal-to-noise ratio, compared with that of conventional fixed saddle or solenoid receiver coils, permits higher resolution imaging and …