Results 141 to 150 of about 1,402,894 (319)

Fuentes Minerales

open access: yes, 2016
UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Agroalimentarias::Centro de Investigación en Nutrición Animal (CINA)
openaire   +1 more source

Propiedades magnéticas de jarositas minerales y sintéticas [PDF]

open access: yes, 1987
Depto. de Mineralogía y PetrologíaFac.
Coy Yll, Ramón   +2 more
core  

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao   +6 more
wiley   +1 more source

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

open access: yesAdvanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian   +8 more
wiley   +1 more source

Efectos de dos sistemas de producción en el contenido de minerales en el fruto de Musa AAB Simmonds Effects of two production systems in the mineral content in the fruit of Musa AAB Simmonds

open access: yesActa Agronómica, 2011
Los sistemas de producción orgánico y/o ecológico tienen como objetivo garantizar la sostenibilidad y la renovación de base natural, mediante la limitación del uso de productos de síntesis química para favorecer el ambiente y la salud humana. Teniendo en
José Luis Barrera-Violeth   +2 more
doaj  

Rocas y minerales

open access: yes, 2021
La historia de la Tierra comprende 4,600 millones de años desde la nebulosa, exteriormente está conformada por atmósfera, hidrósfera y litosfera; mientras que su interior se divide en tres capas: corteza, manto y núcleo. A principios de la humanidad las rocas fueron usadas como herramientas y utensilios, llamándose a esta como Edad de Piedra.
openaire   +1 more source

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

open access: yesAdvanced Functional Materials, EarlyView.
The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray   +3 more
wiley   +1 more source

Fuente no convencional y renovable de hidroxiapatita para purificar agua contaminada con fluoruro [PDF]

open access: yes, 2012
La hidroxiapatita es un material cerámico estratégico para purificar el agua de los acuíferos argentinos contaminados con fluoruro. Los huesos animales son una fuente no convencional y renovable de hidroxiapatita que permite resolver un problema local ...
Arnal, Pablo Maximiliano   +1 more
core  

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

Neoproterozoic ultramafic and mafic magmatism in the Eastern Cordillera of the central peruvian Andes: the Tapo Massif [PDF]

open access: yes, 2010
A highly dismembered assemblage of ultramafic and mafic rocks is exposed in the Eastern Cordillera of the Central Peruvian Andes, extending along a discontinuous NW-SE belt over some 250 km between 12° and 9° S of latitude.
Acosta, Jorge   +4 more
core   +2 more sources

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