Results 91 to 100 of about 145,077 (299)

Chemical structure of 1-O-(L-erythro-biopterin-2'-yl)-a-glucose isolated from a cyanobacterium Synechococcus sp. PCC 7942

open access: yesPteridines, 2001
A pteridine glycoside in Synechococcus sp. PCC 7942, the structure of which had been tentatively identified as biopterin-glucoside, was isolated and characterized for its exact chemical structure by 2D-NMR spectroscopy. The determined structure is 1-0-(L-
Choi Yong Kee   +3 more
doaj   +1 more source

Synergistic Design of Composite Ionogels With Enhanced Thermoelectric Properties, Mechanical Stretchability, and Sustainable Recyclability

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
While flexible TE devices hold promise for converting low‐grade waste heat (e.g., from human skin or electronics) into usable electricity, existing materials suffer from three major limitations: 1) poor mechanical stretchability (failing to match human skin's elongation, ~20–30%), limiting wearability; 2) tradeoffs between thermoelectric efficiency (e ...
Mingqi Liu   +5 more
wiley   +1 more source

A Numerical Investigation of Sinusoidal Flow in Porous Media with a Simple Cubic Beam Structure at 1 Hz and 100 Hz Under Different Porosity Conditions

open access: yesFluids
This study aims to clarify how porosity and frequency interact to influence permeability and flow behavior in porous media subjected to sinusoidal pressure variations.
Sin-Mao Chen   +2 more
doaj   +1 more source

Wabash (WAB) 621

open access: yes, 1940
A photograph print showing the Wabash (WAB) 621, 4-4-2, Chicago ...
Graves, Ralph L.
core  

Forecasting heart failure: Seasonal alignment of heart failure outcomes in New York

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 819-831, April 2025.
Abstract Background Seasonal variations have been observed in heart failure (HF) hospitalization. Numerous explanatory mechanisms have been proposed, but no prior studies have examined potential contributors directly. Our objective was to identify specific factors that could contribute to seasonal variability using a large longitudinal dataset of HF ...
Prerna Gupta   +5 more
wiley   +1 more source

Endoscopic Hemostatic Treatment with a Novel Self-Assembling Peptide Gel for Precut Fistulotomy-Related Bleeding

open access: yesCase Reports in Gastroenterology
Introduction: Precut fistulotomy is of interest as one of the salvage techniques for selective bile duct cannulation using endoscopic retrograde cholangiopancreatography.
Kimitoshi Kubo   +2 more
doaj   +1 more source

Investigation of a potential role for aldose reductase AlrA in tetrahydropteridine synthesis in Dictyostelium discoideum Ax2

open access: yesPteridines, 2017
Dictyostelium discoideum Ax2 is well-known for the synthesis of d-threo-tetrahydrobiopterin (DH4) with a smaller amount of l-erythro-tetrahydrobiopterin (BH4).
Kim Hye-Lim   +2 more
doaj   +1 more source

Immunohistochemical Detection of Encephalitozoon cuniculi in Ocular Structures of Immunocompetent Rabbits

open access: yesAnimals, 2019
Encephalitozoonosis is a common infectious disease widely spread among rabbits. Its causative agent, Encephalitozoon cuniculi, is considered as a zoonotic and emerging pathogen capable of infecting both immunocompetent and immunocompromised hosts ...
Edita Jeklová   +4 more
doaj   +1 more source

The role of cardiac acoustic biomarkers in monitoring patients with heart failure: A systematic literature review

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 980-997, April 2025.
Abstract Heart failure (HF) creates a considerable clinical, humanistic and economic burden on patients and caregivers as well as on healthcare systems. To attenuate the significant burden of HF, there is a need for enhanced management of patients with HF.
Javed Butler   +8 more
wiley   +1 more source

Impact of Wind Veer and the Coriolis Force for an Idealized Farm to Farm Interaction Case

open access: yesApplied Sciences, 2019
The impact of the Coriolis force on the long distance wake behind wind farms is investigated using Large Eddy Simulations (LES) combined with a Forced Boundary Layer (FBL) technique.
Ola Eriksson   +3 more
doaj   +1 more source

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