Results 51 to 60 of about 261,715 (314)

Condrodita del skarn loma Marcelo, área de los Cerros Pan de Azúcar y Del corral, Sierras Australes de Buenos Aires [PDF]

open access: yes, 2013
Fil: Ballivián Justiniano, Carlos A.. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Canafoglia, María Elena. Centro de Química Inorgánica (CEQUINOR). Facultad de Ciencias
Ballivián Justiniano, Carlos A.   +3 more
core  

Los arenales costeros del litoral catalán (la bahía de Rosas) [PDF]

open access: yes, 1988
[ES] Se distinguen dos fuentes para los minerales pesados que se encuentran en las playas de la bahía de Rosas: los basaltos de Olot, para la augita, olivino e hiperstena y las rocas metamórficas del macizo de los Alberes y Cabo de Creus de donde ...
Bacroix, B.   +7 more
core   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

Study of the mechanism of andalusite-Al°-N2 reaction using the combination of DTA-TG-DTG techniques

open access: yesCerâmica, 1999
Alumina based ceramics have important engineering applications due to their good physicochemical properties but their performance may be enhanced by addition of a second phase.
A. D. Mazzoni, E. F. Aglietti
doaj  

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Sistemas de mineralización de Oro relacionado a intrusiones (IRGS) como modelo de exploración en el Complejo Volcánico Galán, Bolivia [PDF]

open access: yes, 2012
Fil: Ramos Collorana, Wilfredo. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Fernández, Raúl Roberto. Instituto de Recursos Minerales (INREMI).
Fernández, Raúl Roberto   +1 more
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Influencia de la calidad del heno suplementario y la localización de la pastura sobre el rendimiento de bovinos de carne a pastoreo sobre avena [PDF]

open access: yes, 2004
Heifers grazing oat pasture (OP) at two locations in Argentina, Argerich (ARG) and Pasman (PAS), were subjected to one of three different dietary supplement treatments: (1) control (CON, no supplement), (2) sorghum hay (SH), or (3) alfalfa-grass hay (AGH)
Arelovich, Hugo Mario   +3 more
core   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian   +6 more
wiley   +1 more source

La contaminación ambiental ocasionada por la minería en la provincia de El Oro

open access: yesEstudios de la Gestión, 2020
La contaminación ambiental ocasionada por la minería en la provincia de El Oro ha traído consecuencias graves e irreparables al medioambiente; la minería ha estado presente ya desde tiempo atrás provocando un descontrol realizado por las actividades ...
Wilson Vilela-Pincay   +2 more
doaj   +1 more source

Paragénesis mineral del depósito tipo five element Purísima-Rumicruz, Jujuy [PDF]

open access: yes, 2012
Fil: López, Luciano. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Etcheveste, Horacio. Instituto de Recursos Minerales (INREMI).
Etcheveste, Horacio, López, Luciano
core  

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