Results 121 to 130 of about 30,223 (236)

High‐Density Iron Nanostructures Grown on Electrospun PVA/Pectin Fibers via Seed‐Mediated Strategy for As(V) Remediation

open access: yesSmall Methods, EarlyView.
A seed‐assisted anisotropic growth strategy enabling unprecedented iron loading and controlled anisotropic nanostructure formation on electrospun PVA/pectin nanofibers is presented. By decoupling nucleation and growth through sequential Fe2+ then Fe3+ doping, it achieves a 12‐fold increase in accessible iron content, producing rice‐grain‐like ...
Ayelen C. Santos   +5 more
wiley   +1 more source

Predicting resilient modulus: A data driven approach integrating physical and numerical techniques

open access: yesHeliyon
Resilient modulus (MR) is an important parameter in the design of pavement that helps to characterize the quality of sub-grade materials. Generally, it is not determined experimentally due to time consuming, uneconomical, laborious and lack of advanced ...
Kashif Riaz, Naveed Ahmad
doaj   +1 more source

Post‐earthquake field assessment and damage correlation of elevated reinforced concrete water tanks in Kahramanmaras/Elbistan, Türkiye

open access: yesStructural Concrete, EarlyView.
Abstract This study evaluates the seismic performance of elevated reinforced concrete (RC) water tanks in the Elbistan region following the February 6, 2023 Kahramanmaras–Elbistan earthquakes. Field investigations, visual damage surveys, non‐destructive testing (ultrasonic pulse velocity—UPV), concrete compressive strength measurements, peak ground ...
Mustafa Eken
wiley   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

open access: yesStructural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci   +3 more
wiley   +1 more source

Bacterial healing of cracks in metakaolin‐based geopolymer concrete exposed to high temperatures

open access: yesStructural Concrete, EarlyView.
Abstract This study examined the bacterial healing of metakaolin‐based geopolymer concrete modified with colemanite (K) and red mud (RM) exposed to high temperatures. The metakaolin‐based geopolymer concrete samples modified with 4% K and 6% RM were prepared.
Harun Tanyildizi   +3 more
wiley   +1 more source

The Timely Rise of a Teenage Reformer: Youth Revolt, Feminism and the Struggle for a ‘New Sexual Morality’ at the Dawn of the Spanish Second Republic

open access: yesGender &History, EarlyView.
ABSTRACT The contributions of propagandist and writer Hildegart (1914–1933) to Spanish cultural life are overshadowed by accounts of her unusual upbringing and violent death. This article examines the conditions that enabled the teenager to become a prominent voice for feminism and sexual reform on the eve of Spain's Second Republic (1931–1939).
Micaela Pattison
wiley   +1 more source

Consistent Choice of Prey Source Habitat Across Diverse Landscapes by a Selective Insectivorous Bat

open access: yesIntegrative Zoology, EarlyView.
After analyzing the diet of the greater horseshoe bats in three distinct colonies, we identified significant spatial and temporal differences, particularly noting a stronger reliance on riparian habitats in Mediterranean areas. The species exhibits great ecological adaptability with strong plasticity in prey source habitats, shifting preferences among ...
Miren Aldasoro   +7 more
wiley   +1 more source

EVALUATION OF THE RELATIONSHIP BETWEEN COMPRESSIVE STRENGTH AND UPV OF HSC EXPOSED TO HIGH TEMPERATURES

open access: yesAl-Qadisiyah Journal for Engineering Science, 2009
An experimental program was adopted in this study to investigate the degree of dependency on the using of ultrasonic pulse velocity (UPV) to evaluate the residual strength of concrete exposed to high temperatures as in the case of fires.
Sallal Rashid Al-Owaisy
doaj  

Impact of Prior Biologic Mechanism of Action on Anti‐TNF Effectiveness in Inflammatory Bowel Disease: An ENEIDA Registry Study

open access: yesAlimentary Pharmacology &Therapeutics, EarlyView.
In this nationwide ENEIDA registry study, anti‐TNF therapy after prior exposure to a different biologic mechanism of action showed reduced treatment durability in inflammatory bowel disease, with a particularly marked impact in ulcerative colitis, where short‐ and long‐term clinical effectiveness was also lower. ABSTRACT Background The expanding use of
Carmen Yagüe Caballero   +85 more
wiley   +1 more source

Mapping Palaeolithic Imprints: Spatial Analysis of Hand Stencils in El Castillo Cave (Spain) Through Geomatic Techniques

open access: yesArchaeometry, EarlyView.
ABSTRACT We present the application of a new quantitative approach to space study in Palaeolithic cave art. Using GIS, we analysed the distribution and position of hand stencils in El Castillo cave to track the gestures and behaviours of Palaeolithic societies.
Olga Spaey   +7 more
wiley   +1 more source

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