Metabuscador

Filtrado por:

Temas

Idiomas

Año

2013 (24)
2012 (63)
2011 (62)
2010 (59)
2009 (69)
2008 (49)
Más...

Aproximadamente 426 registro(s) hasta el momento: (journal)

Mostrar 10 | 50 | 100 resultados por página

Recurso libre

401.

Stratigraphic redefinition of the Zihuatanejo area, southwestern Mexico
Martini,Michelangelo - Ferrari,Luca - López-Martínez,Margarita - Valencia,Victor

Formato:	journal article
Enlaces:	The Mesozoic volcano-sedimentary successions exposed in southwestern Mexico have been traditionally grouped into the Guerrero terrane, and interpreted to represent an allochthonous long-lived island arc or a complex multi-arc system accreted to the continental margin of North America. However, the…
Fecha:	2010-12-01
Recurso:	SCIELO

Recurso libre

402.

Microfossils, paleoenvironments and biostratigraphy of the Mal Paso Formation (Cretaceous, upper Albian), State of Guerrero, Mexico
Filkorn,Harry F. - Scott,Robert W.

Formato:	journal article
Enlaces:	Microfossils from an outcrop of the coral reef and rudist-bearing calcareous upper member of the Mal Paso Formation just north of Chumbítaro, State of Michoacán, Mexico, indicate a deepening trend and transition from nearshore through outer shelf depositional environments upward…
Fecha:	2011-04-01
Recurso:	SCIELO

Recurso libre

403.

Tectonothermal history of the Mesoproterozoic Novillo Gneiss of eastern Mexico: support for a coherent Oaxaquia microcontinent
Trainor,Robert J. - Nance,R. Damian - Keppie,J. Duncan

Formato:	journal article
Enlaces:	The Novillo Gneiss is one of several exposures of Mesoproterozoic (ca. 1.0-1.2 Ga) basement in eastern Mexico interpreted to be outcrops of a single crustal block (Oaxaquia) that has figured prominently in continental reconstructions for the late Precambrian-Paleozoic. Exposed within…
Fecha:	2011-12-01
Recurso:	SCIELO

Recurso libre

404.

Microfacies analysis and paleoenvironmental dynamic of the Barremian-Albian interval in Sierra del Rosario, eastern Durango state, Mexico
Núñez-Useche,Fernando - Barragán,Ricardo

Formato:	journal article
Enlaces:	The detailed microfacies analysis on a stratigraphic section located in eastern Durango contribute to the paleoenvironmental and paleogeographic understanding of the Cupido and Coahuila carbonate platforms in the southernpart of the Coahuila basement block, apoorly investigated area. The stratigraphic section…
Fecha:	2012-04-01
Recurso:	SCIELO

Recurso libre

405.

Depositional conditions and source of rare earth elements in carbonate strata of the Aptian-Albian Mural Formation, Pitaycachi section, northeastern Sonora, Mexico
Madhavaraju,Jayagopal - González-León,Carlos M.

Formato:	journal article
Enlaces:	Major, trace and rare earth elements (REE) concentrations in limestone beds of the Canova and El Caloso members of the Mural Formation in the Cerro Caloso Pitaycachi area were measured to understand the depositional conditions and source of REE. Contents…
Fecha:	2012-08-01
Recurso:	SCIELO

Recurso libre

406.

Island arc tholeiites of Early Silurian, Late Jurassic and Late Cretaceous ages in the El Fuerte region, northwestern Mexico
Vega-Granillo,Ricardo - Vidal-Solano,Jesús Roberto - Herrera-Urbina,Saúl

Formato:	journal article
Enlaces:	Three distinctive igneous suites crop out in the El Fuerte block, northwestern Mexico. The oldest of these suites is the Realito Gabbro, which intrudes the Middle-Upper Ordovician Río Fuerte Formation. This gabbro yielded an Early Silurian U-Pb zircon age of…
Fecha:	2012-08-01
Recurso:	SCIELO

Recurso libre

407.

Sediment geochemistry of marine shallow-water hydrothermal vents in Mapachitos, Bahía Concepción, Baja California peninsula, Mexico
Leal Acosta,María Luisa - Shumilin,Evgueni - Mirlean,Nicolai

Formato:	journal article
Enlaces:	The objective of this study was to determine the influence of marine shallow-water hydrothermal systems in Mapachitos, bahia Concepcion, on the composition of surficial sediments in the surrounding area of this bay. The following elements Al, As, Ba, Ca, Cd,…
Fecha:	2013-04-01
Recurso:	SCIELO

Recurso libre

408.

Roundness in quartz grains from inland and coastal dune sands, Altar Desert, Sonora, Mexico
Kasper-Zubillaga,Juan José

Formato:	journal article
Enlaces:	A roundness analysis of quartz grains (n=54) from dunes from San Luis Río Colorado (SLRC), El Pinacate (EP), Golfo de Santa Clara (GSC) and Puerto Peñasco (PP), Sonora, Mexico, was carried out in order to determine the provenance of quartz…
Fecha:	2009-01-01
Recurso:	SCIELO

Recurso libre

409.

New constraints on timing of Hidalgoan (Laramide) deformation in the Parras and La Popa basins, NE Mexico
Gray,Gary G. - Lawton,Timothy F.

Formato:	journal article
Enlaces:	The Parras and La Popa basins of northeastern Mexico together contain at least three separate types of structures that were active during Maastrichtian through Early Eocene time. These structures include salt diapirs and salt welds, E-W trending anticlines detached within…
Fecha:	2011-08-01
Recurso:	SCIELO

Recurso libre

410.

Left and right ventricular power: outputs are the strongest hemodynamic correlates to allow identification of acute responders to vasodilator treatment in idiopathic pulmonary arterial hypertension
Lupi-Herrera,Eulo - Sandoval,Julio - Figueroa,Javier - Carrillo,Arturo - Aguirre,Rebeca - Santos-Martínez,Luis Efren - Pulido,Tomás

Formato:	journal article
Enlaces:	Introduction: Despite the prognostic importance of traditionally derived measurements, the significance of right heart catheterization (RHC) remains controversial. Thus, a continued search for hemodynamic markers that define better responsive patients is required. Since, right ventricular failure is the most fatal…
Fecha:	2011-06-01
Recurso:	SCIELO

Recurso libre

411.

The role of pulmonary pressure/cardiac index to identify pulmonary hemodynamic responders to acute oxygen breathing pulmonary hypertension COPD patients
Lupi-Herrera,Eulo - Sandoval,Julio - Santos,Luis Efren - Pulido,Tomás - Rosas-Peralta,Martín

Formato:	journal article
Enlaces:	Objectives: We sought to analyze exercise-derived mean pulmonary artery pressure (Mpap) - cardiac index (CI) - relationship to expand the concepts regarding its nature and to better identify pulmonary hemodynamic responders to acute oxygen breathing (AOB - 99.5%) in pulmonary…
Fecha:	2011-09-01
Recurso:	SCIELO

Recurso libre

412.

The TIMI risk score for STEMI predicts in-hospital mortality and adverse events in patients without cardiogenic shock undergoing primary angioplasty
González-Pacheco,Héctor - Arias-Mendoza,Alexandra - Álvarez-Sangabriel,Amada - Juárez-Herrera,Úrsulo - Damas,Félix - Eid-Lidt,Guering - Azar-Manzur,Francisco - Martínez-Sánchez,Carlos

Formato:	journal article
Enlaces:	Introduction: Patients with ST elevation acute myocardial infarction (STEMI) comprise a heterogeneous population with respect to the risk for adverse events. Primary percutaneous coronary intervention (PCI) has shown to be better, mainly in high-risk patients. Objective: The purpose of this…
Fecha:	2012-03-01
Recurso:	SCIELO

Recurso libre

413.

Clinical characteristics, process of care and outcomes among Mexican, Hispanic and non-Hispanic white patients presenting with non-ST elevation acute coronary syndromes: Data from RENASICA and CRUSADE registries
Sánchez-Diaz,Carlos Jerjes - García-Badillo,Edgar - Sánchez-Ramírez,Carlos Jerjes - Juárez,Úrsulo - Martínez-Sánchez,Carlos

Formato:	journal article
Enlaces:	Introduction: Data regarding management characteristics of non-ST elevation acute coronary syndromes (NSTE ACS) in Mexican, Hispanic and Non- Hispanic white patients are scarce. Methods: We sought to describe the clinical characteristics, process of care, and outcomes of Mexicans, Hispanics and…
Fecha:	2012-03-01
Recurso:	SCIELO

Recurso libre

414.

How electricity was discovered and how it is related to cardiology
de Micheli-Serra,Alfredo - Iturralde-Torres,Pedro - Izaguirre-Ávila,Raúl

Formato:	journal article
Enlaces:	We relate the fundamental stages of the long road leading to the discovery of electricity and its uses in cardiology. The first observations on the electromagnetic phenomena were registered in ancient texts; many Greek and Roman writers referred to them,…
Fecha:	2012-09-01
Recurso:	SCIELO

Recurso libre

415.

Screening for cervical cancer: new alternatives and research
Lörincz,Attila T

Formato:	journal article
Enlaces:	Evidence for the clinical utility of human papillomavirus (HPV) DNA testing has increased over the years and has now become very convincing. Some specific uses of HPV detection are a) triage of women with cytological determinations of atypical squamous cells…
Fecha:	2003-01-01
Recurso:	SCIELO

Recurso libre

416.

Correlation trends for bone mineral density in Mexican women: evidence of familiar predisposition
Lazcano-Ponce,Eduardo - Tamayo,Juan - Díaz,Rodrigo - Burguete,Ana I. - Salmerón,Jorge

Formato:	journal article
Enlaces:	OBJECTIVE: Genetic factors determine bone mineral density (BMD) and peak bone density between 20 and 30 years of age, as well as bone mineral loss after menopause. BMD is a predictor of fractures due to osteoporosis and the impact of…
Fecha:	2009-01-01
Recurso:	SCIELO

Recurso libre

417.

Disordered eating behaviors and binge drinking in female high-school students: the role of impulsivity
Ocampo Ortega,René - Bojorquez Chapela,letza - Unikel Santoncini,Claudia

Formato:	journal article
Enlaces:	Introduction It is widely accepted that psychiatric comorbidity can increase the severity, chronicity, and treatment resistance of psychiatric disorders. In various studies worldwide, it has been estimated that the prevalence of alcohol use disorders in women with disordered eating behaviors…
Fecha:	2012-04-01
Recurso:	SCIELO

Recurso libre

418.

The relationships between volcanism and extension in the Mesa Central: the case of Pinos, Zacatecas, Mexico
Aranda-Gómez,José Jorge - Molina-Garza,Roberto - McDowell,Fred W. - Vassallo-Morales,Luis Fernando - Ortega-Rivera,María Amabel - Solorio-Munguía,José Gregorio - Aguillón-Robles,Alfredo

Formato:	journal article
Enlaces:	Pinos volcanic complex is an uplifted area that exposes Mesozoic strata and mid-Tertiary volcanic and sedimentary rocks. Its stratigraphy, deformation style, and volcanism are characteristic of the Mesa Central region of central Mexico and the southeastern segment of the Sierra…
Fecha:	2007-08-01
Recurso:	SCIELO

Recurso libre

419.

Formation of aggregates and carbon sequestration in ameliorated tepetates in the Río Texcoco basin, Mexico
Báez-Pérez,Aurelio - Etchevers-Barra,Jorge D. - Prat,Christian - Hidalgo-Moreno,Claudia

Formato:	journal article
Enlaces:	In many states of central Mexico, hardened volcanic materials called tepetate (hardened layers from tuff) cover large proportions of the land surface, and are therefore of economic and social importance. Under natural conditions, tepetates are unproductive due to their hardness…
Fecha:	2007-12-01
Recurso:	SCIELO

Recurso libre

420.

Heterogeneous magmas of the Quaternary Sierra Chichinautzin volcanic field (central Mexico): the role of an amphibole-bearing mantle and magmatic evolution processes
Meriggi,Lorenzo - Macías,José Luis - Tommasini,Simone - Capra,Lucia - Conticelli,Sandro

Formato:	journal article
Enlaces:	The Quaternary Sierra Chichinautzin volcanic field (SCVF) is located at the volcanic front of the Trans-Mexican Volcanic Belt (TMVB), 350 km from the Middle American trench where the Cocos plate subducts beneath the North American plate. The SCVF…
Fecha:	2008-08-01
Recurso:	SCIELO

Recurso libre

421.

Kinematics and U-Pb dating of detrital zircons from the Sierra de Zacatecas, Mexico
Escalona-Alcázar,Felipe de Jesús - Delgado-Argote,Luis Alberto - Weber,Bodo - Núñez-Peña,Ernesto Patricio - Valencia,Víctor A. - Ortiz-Acevedo,Olivia

Formato:	journal article
Enlaces:	The Mesozoic succession of the Sierra de Zacatecas (SZ) was originally described in two sequences. The older is the La Pimienta Phyllite or sometimes termed Zacatecas Formation (ZF) of presumably Late Triassic age based on paleontological constraints obtained at the…
Fecha:	2009-04-01
Recurso:	SCIELO

Recurso libre

422.

East-west variations in age, chemical and isotopic composition of the Laramide batholith in southern Sonora, Mexico
Roldán-Quintana,Jaime - McDowell,Fred W. - Delgado-Granados,Hugo - Valencia-Moreno,Martín

Formato:	journal article
Enlaces:	We examined an east-west transect from the Gulf of California to the volcanic province of the Sierra Madre Occidental (28°30'N). The transect is divided into three geologic regions: 1) The coastal region (COR) is characterized by scattered exposures of Laramide…
Fecha:	2009-12-01
Recurso:	SCIELO

Recurso libre

423.

Arizpe sub-basin: A sedimentary and volcanic record of Basin and Range extension in north-central Sonora, Mexico
González-León,Carlos M. - Valencia,Víctor A. - López-Martínez,Margarita - Bellon,Hervé - Valencia-Moreno,Martín - Calmus,Thierry

Formato:	journal article
Enlaces:	The Arizpe sub-basin located in the northern part of the Río Sonora basin is a Basin and Range half-graben that initiated during Late Oligocene time in north-central Sonora. Its ~2.1 km-thick, east-dipping volcanic and sedimentary fill assigned to the Báucarit…
Fecha:	2010-08-01
Recurso:	SCIELO

Recurso libre

424.

Geology, geochronology, and geochemistry of Isla María Madre, Nayarit, Mexico
Pompa-Mera,Valerie - Schaaf,Peter - Hernández-Treviño,Teodoro - Weber,Bodo - Solís-Pichardo,Gabriela - Villanueva-Lascurain,Daniel - Layer,Paul

Formato:	journal article
Enlaces:	Islas Marías archipelago is located 110 km NW of San Blas, Nayarit in the mouth of the Gulf of California. The archipelago is formed by San Juanito, María Madre, María Magdalena, and María Cleofas islands. The position of these islands…
Fecha:	2013-04-01
Recurso:	SCIELO

Recurso libre

425.

Guías clínicas para la detección, prevención, diagnóstico y tratamiento de hipertensión arterial sistémica en México (2008)
Rosas,Martín - Pastelín,Gustavo - Vargas-Alarcón,Gilberto - Martínez-Reding,Jesús - Lomelí,Catalina - Mendoza-González,Celso - Lorenzo,José Antonio - Méndez,Artro - Franco,Martha - Sánchez-Lozada,Laura Gabriela - Verdejo,Juan - Sánchez,Noé - Ruiz,Rocío - Férez-Santander,Sergio Mario - Attie,Fause

Formato:	journal article
Enlaces:	El Comité Institucional multidisciplinario de expertos en Hipertensión Arterial del Instituto Nacional de Cardiología presenta la actualización 2008 de sus "Guías y Recomendaciones" para la detección control y tratamiento de la Hipertensión Arterial Sistémica (HTAS). El abordaje pretende ser simple…
Fecha:	2008-06-01
Recurso:	SCIELO

Recurso libre

426.

The association between type of confidant and depressive symptomology in a sample of Mexican youth
Ponce,Mirna - Flores,Yvonne N. - Mudgal,Jyoti - Huitrón,Gerardo - Halley,Elizabeth - Gallegos-Carrillo,Katia - Salmerón,Jorge

Formato:	journal article
Enlaces:	Background The current lifetime prevalence of depression among females in Mexico is 9.1% and 2.9% among males. The overall lifetime prevalence of depression is 6.2% among the general population of Mexico. Individuals that experience depressive symptomology at a young age…
Fecha:	2010-06-01
Recurso:	SCIELO