Resultados de búsqueda - "fossil"

Biomass and lipid induction strategies in microalgae for biofuel production and other applications por Alishah Aratboni, Hossein, Rafiei, Nahid, García Granados, Raúl, Alemzadeh, Abbas, Morones Ramírez, José Rubén

“…The use of fossil fuels has been strongly related to critical problems currently affecting society, such as: global warming, global greenhouse effects and pollution. …”
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Editor's message: beaming energy from the space por Aguilar Garib, Juan Antonio

“…Our society is consuming energy figures which are so large that sometimes they become meaningless when mentioned; electricity alone in 2012 was 20,900 TWH (IEA World energy statistics), 68% from fossil fuels, 11% nuclear and 21% ‘renewable’; the energy that comes from resources that are not significantly depleted by their use, such as sunlight, wind, rain, tides, waves and geothermal heat. …”
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Primer registro fósil del gasterópodo Cincinnatia (Hydrobiidae: Nymphophilinae) en México por Czaja, Alexander, Estrada Rodríguez, José Luis, Romero Méndez, Ulises, Estrada Arellano, Josué Raymundo, González Zamora, Alberto

“…ABSTRAC The first record of fossil shells of the freshwater gastropod genus Cincinnatia Pilsbry, 1891 found in fluvial sediments of the late Pleistocene in the Acatita Valley, Coahuila, Mexico, is described. …”
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Estudio de los principales mecanismos de fosilización en rocas de la formación cupido, barremiano-aptiano del noreste de México. por Gómez Mancha, Yesica Edith

“…Even more, these tasks depend on fossil interpretation and preservation degree. This work addresses fossilization and diagenetic processes in fossils derived from previously studied Cretaceous outcrops from which the exact stratigraphic location is well-known. …”
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Estudio de los principales mecanismos de fosilización en rocas de la formación cupido, barremiano-aptiano del noreste de México. por Gómez Mancha, Yesica Edith

“…Even more, these tasks depend on fossil interpretation and preservation degree. This work addresses fossilization and diagenetic processes in fossils derived from previously studied Cretaceous outcrops from which the exact stratigraphic location is well-known. …”
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A large hadrosaur from Presa San Antonio, Cerro del Pueblo Formation, Coahuila, Mexico por Rivera Sylva, Hector, Reyna Hernández, Rogelio, Silva Martínez, Luis Encarnación, Guzmán Gutiérrez, Rubén

“…This specimen, referred as Lambeosaurinae indet., adds to the fossil record of the hadrosaurids in southern Laramidia during the Campanian.…”
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Solar-driven CO2 reduction using modified earth-abundant ilmenite catalysts por Luévano Hipólito, E., Fabela Cedillo, Mayte G., Torres Martínez, Leticia M., Zarazúa Morín, María E.

“…Photocatalytic CO2 reduction is an alternative technology to the depletion of highly pollutant fossil fuels through the generation of renewable solar-based fuels. …”
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Análisis microfacial, paleontológico y geoquímico en carbonatos de la Formación el Abra, Cerritos, San Luis Potosí, México por Ramos Hernández, Jennifer

“…This deposit contains fossil groups typical of a reef environment and that particularly characterizes this lithological unit on the eastern margin. …”
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Estudio de la combustión de mezclas de gasolina-bioalcohol en un motor de compresión variable CFR por Rubio Gómez, Guillermo

“…Abstract The last years, an increment has been seen in the concern about the perjudicial effects of the use of fossil fuels in internal combustion engines, in terms of growing greenhouse effect and health issues from its emissions. …”
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Análisis microfacial, paleontológico y geoquímico en carbonatos de la Formación el Abra, Cerritos, San Luis Potosí, México por Ramos Hernández, Jennifer

“…This deposit contains fossil groups typical of a reef environment and that particularly characterizes this lithological unit on the eastern margin. …”
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Estudio de la combustión de mezclas de gasolina-bioalcohol en un motor de compresión variable CFR por Rubio Gómez, Guillermo

“…Abstract The last years, an increment has been seen in the concern about the perjudicial effects of the use of fossil fuels in internal combustion engines, in terms of growing greenhouse effect and health issues from its emissions. …”
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Calorific Value and Chemical Composition of Five Semi-Arid Mexican Tree Species por Ngangyo Heya, Maginot, Foroughbakhch Pournavab, Rahim, Carrillo Parra, Artemio, Rutiaga Quiñones, José Guadalupe, Zelinski, Volker, Pintor Ibarra, Luis

“…The current global energy crisis has generated growing interest in looking for alternatives to traditional fossil fuels, presenting lignocellulosic materials as a promising resource for sustainable energy production. …”
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Current and prospective situation of municipal solid waste final disposal in Mexico: a spatio-temporal evaluation por Rueda Avellaneda, Juan Felipe, Rivas García, Pasiano, Gómez González, Ricardo, Benitez Bravo, Reyes, Botello Álvarez, José Enrique, Tututi Ávila, Salvador

“…This electricity can avoid the emission of 1.45 Mt CO2 , since fossil fuels are predominant in the Mexican power grid. …”
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Bioeconomía Circular: Un futuro sostenible para el planeta por Gutiérrez-Soto, Guadalupe, López Sandin, Iosvany, Castillo Martínez, Diana

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Impactos a la biodiversidad por parques eólicos en el noreste de méxico por Robles Guerrero, Franco Gerardo

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Clonación y expresión del ADNc que codifica para la enzima endo-β-1,4-glucanasa de Coptotermes formosanus en Pichia pastoris por Jara Ochoa, Javier Omar

“…One option today is the development of renewable energy which in turn provide a positive contribution to the environment, contrary to fossil fuels used today. Enzymes offer substantial advantages over chemical catalysts because they are derived from renewable resources, biodegradable, working in relatively mild conditions, they tend to offer exquisite selectivity in the stereochemistry of reactants and products. …”
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Elemental Composition and Flue Gas Emissions of Different Components from Five Semi-Arid Woody Species in Pyrolysed and Non-Pyrolysed Material por Ngangyo Heya, Maginot, Foroughbakhch Pournavab, Rahim, Carrillo Parra, Artemio, Zelinski, Volker, Salas Cruz, Lidia Rosaura

“…Biofuels are sustainable alternatives to fossil fuels. However, they must comply with energy efficiency requirements and contribute to environmental protection. …”
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Clonación y expresión del ADNc que codifica para la enzima endo-β-1,4-glucanasa de Coptotermes formosanus en Pichia pastoris por Jara Ochoa, Javier Omar

“…One option today is the development of renewable energy which in turn provide a positive contribution to the environment, contrary to fossil fuels used today. Enzymes offer substantial advantages over chemical catalysts because they are derived from renewable resources, biodegradable, working in relatively mild conditions, they tend to offer exquisite selectivity in the stereochemistry of reactants and products. …”
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Caracterización microfacial de los sedimentos carbonatados del Albiano-Cenomaniano en la parte central del estado de Nuevo León por Salazar Sánchez, Jesús Enrique

“…These results will be of great help to complement the scarce information that exist about the sediments corresponding to the Albian-Cenomanian in the northeast region of Mexico, as well as to assign the correct formational name to each one of the units, determinate the relative age based on the fossil content and elaborate a sedimentary paleoenvironment for both zones.…”
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Caracterización microfacial de los sedimentos carbonatados del Albiano-Cenomaniano en la parte central del estado de Nuevo León por Salazar Sánchez, Jesús Enrique

“…These results will be of great help to complement the scarce information that exist about the sediments corresponding to the Albian-Cenomanian in the northeast region of Mexico, as well as to assign the correct formational name to each one of the units, determinate the relative age based on the fossil content and elaborate a sedimentary paleoenvironment for both zones.…”
Enlace del recurso