Results 131 to 140 of about 463,478 (223)

The Reactive Extrusion Cationization of Starches as a Novel Physicochemical Surface Modification Method

open access: yesBiopolymers, Volume 117, Issue 3, May 2026.
Native starches from different botanical sources were cationized by reactive extrusion using 3% glycidyltrimethylammonium chloride (GTAC). The process, performed under controlled thermal zones, promoted the incorporation of quaternary ammonium groups onto the starch backbone.
Maria C. Posada‐Vélez   +4 more
wiley   +1 more source

Rutas Geomonumentales: la geología para la enseñanza y difusión del patrimonio arquitectónico. [PDF]

open access: yes, 2008
Las Rutas Geomonumentales constituyen una novedosa metodología de abordar la divulgación del patrimonio arquitectónico con una clara intencionalidad didáctica, permitiendo conocer de cerca los materiales geológicos que lo configuran, la relación que ...
Fort González, Rafael   +1 more
core   +1 more source

Urban–Wild Interface Diversity: A Comprehensive Checklist of Herpetofauna of Guayaquil, Ecuador

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Amphibians and reptiles in Guayaquil comprise multiple taxonomic orders and occur across conservation areas, forest remnants, and urban parks, including several endemic species and numerous taxa with type localities in the city. Although most species are globally classified as Least Concern, discrepancies between global and national threat assessments ...
Keyko Cruz‐García   +3 more
wiley   +1 more source

Introducción a los materiales [PDF]

open access: yes, 2006
1 archivo PDF (144 páginas)Material que cubre con un enfoque general, las necesidades del curso de Introducción a los Materiales". Este curso es el primer curso del Tronco Profesional de la Carrera de Ingeniería Metalúrgica. Se encuentra ubicado en el 4"
Franco Velázques, Francisca   +1 more
core  

Curcumin Nanoformulations for Dermatological Applications: From Nutraceuticals to Nanocarriers

open access: yesFood Frontiers, Volume 7, Issue 3, May 2026.
Nanotechnology‐based delivery platforms enhance the cutaneous administration of curcumin. Loading free curcumin into polymeric micelles, metal‐based nanoparticles, nanogels/hydrogels, liposomes, polymeric nanoparticles, or nanoemulsions/nanocrystals helps address its low solubility, poor stability and limited skin permeation. As a result, these systems
Stephany Celeste Gutiérrez‐Ruiz   +13 more
wiley   +1 more source

The barley–malt–beer chain: A process and food safety approach

open access: yesJSFA reports, Volume 6, Issue 5, Page 144-159, May 2026.
Abstract This review addresses the current state of knowledge on the barley–malt–beer chain and its main physical, chemical, and microbiological contaminants, with particular emphasis on spoilage microorganisms and their toxic metabolites. The barley–malt–beer production chain represents a mature and globally relevant agro‐industrial sector that ...
José Gómez‐Espinoza   +5 more
wiley   +1 more source

Estrategias de recuperación : residuos de restaurantes : una fuente de recursos [PDF]

open access: yes
Fil: Iribarne, Rosana. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Ingeniería Sanitaria; Argentina.Cualquiera sea la alternativa elegida, se requiere establecer\nuna operatoria específica para los distintos elementos a\nseparar o ...
Iribarne, Rosana
core  

Bridging Self‐Assessment Gaps: The Impact of Objective Structured Clinical Examination (OSCE) on Nursing Students' Competency Perception: A Pre‐Post‐Test Study

open access: yesNursing Open, Volume 13, Issue 5, May 2026.
ABSTRACT Aim Self‐assessment is critical in nursing education, enabling students to reflect on their cognitive and clinical skills while helping educators identify gaps in competencies. Combining subjective self‐assessment with the objectivity of Objective Structured Clinical Examinations (OSCEs) supports learning adjustments.
Virginia La Rosa‐Salas   +4 more
wiley   +1 more source

Molecular Weight–Dependent Reinforcement of Biobased Aromatic Thermoplastic Polyurethanes Using Vegetable Oil Crosslinkers

open access: yesPolymer Engineering &Science, Volume 66, Issue 5, Page 3845-3859, May 2026.
Strategy for biobased aromatic thermoplastic polyurethanes. ABSTRACT The transition toward sustainable thermoplastic polyurethanes (TPUs) is a key challenge for reducing the carbon footprint for a wide range of applications, from industrial to transportation, including advanced applications such as 3D‐printed sensors and soft actuators.
Héloïse Sauquet   +2 more
wiley   +1 more source

From transporter to motor: Evolutionary and structural insights into the emergence of prestin's area‐motor activity in mammals

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract Prestin, a member of the SLC26A family, is essential for the electromotility of mammalian outer hair cells, converting voltage changes into mechanical work. In contrast, nonmammalian orthologues function as anion transporters. To investigate the molecular and structural basis of this functional divergence, we performed ancestral sequence ...
Nicolás Fuentes‐Ugarte   +6 more
wiley   +1 more source

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