Results 91 to 100 of about 479,770 (311)

Emeralds from the Delbegetey deposit (Kazakhstan): mineralogical characteristics and fluid-inclusion study [PDF]

open access: yes, 2006
The aim of this study is to provide the first detailed mineralogical and fluid-inc1usion description of emeralds from the Delbegetey deposit (Kazakhstan).
Calvo Pérez, Benjamín   +3 more
core   +2 more sources

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

open access: yesAdvanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl   +20 more
wiley   +1 more source

Empleo de una pre-mezcla mineral a partir de fuentes naturales en dietas para cerdos en crecimiento-ceba

open access: yesRevista de Producción Animal
Antecedentes: La nutrición mineral beneficia el comportamiento bioproductivo de los cerdos. Objetivo. Evaluar el efecto de inclusión de una pre-mezcla mineral elaborada a partir de fuentes naturales nacionales en dietas para cerdos híbridos YorkLand en ...
Mario Reinoso Pérez   +4 more
doaj   +2 more sources

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

open access: yesAdvanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono   +6 more
wiley   +1 more source

A critique of using epitaxial criterion to discriminate between protogenetic and syngenetic mineral inclusions in diamond

open access: yesScientific Reports
Distinguishing syngenetic from protogenetic inclusions in natural diamonds is one of the most debated issues in diamond research. Were the minerals that now reside in inclusions in diamonds born before the diamond that hosts them (protogenesis)?
Marco Bruno   +3 more
doaj   +1 more source

Dietary supplementation of formulated fish specific mineral mixture improved growth and health status of Indian major carps

open access: yesIndian Journal of Animal Sciences
The present study was undertaken to standardize the dose and efficacy of formulated fish specific mineral mixture on survival, growth and health status of Indian major carps (IMC) catla (Labeo catla), rohu (Labeo rohita) and mrigal (Cirrhinus mrigala ...
ANJU VIJAYAN   +2 more
doaj   +1 more source

Sunflower cake in multiple supplements for cattle grazing in the dry season: Nutritional characteristics

open access: yesSemina: Ciências Agrárias, 2015
The objective was to evaluate the effect of inclusion levels of sunflower cake as protein source to replace soybean meal in multiple supplements for cattle grazing during dry season on nutritional parameters. Five steers were used, Nellore, non-castrated,
Allan Cristian Mesacasa   +8 more
doaj   +1 more source

Melt densities in the Na2O-FeO-Fe2O3-SiO2 system and the partial molar volume of tetrahedrally-coordinated ferric iron in silicate melts [PDF]

open access: yes, 1988
The densities of 12 melts in the Na2O-FeO-Fe2O3-SiO2 system have been determined in equilibrium with air, in the temperature range of 1000–1500°C, using the double bob, Archimedean technique.
Brearley, Mark   +2 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

Safety evaluation of valproate on bone mineral density and bone metabolism in children with epilepsy

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2018
Objective To evaluate the safety of valproate (VPA) on bone mineral density and bone metabolism in children with epilepsy. Methods Retrieve relevant research from online databases (January 1, 1980-March 1, 2018) as PubMed, EBMASE/SCOPUS and Cochrane ...
Hai-jiao WANG   +5 more
doaj   +1 more source

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