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Aproximadamente 420 registro(s) hasta el momento: (journal)

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Recurso libre

401.

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

402.

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

403.

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

404.

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

405.

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

406.

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

407.

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

408.

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

409.

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

410.

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

411.

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

412.

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

413.

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

414.

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

415.

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

416.

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

417.

Antropic effect on hydrochemical characteristics of the Valle de Toluca aquifer (central Mexico)
Esteller Alberich, María Vicenta - Andreu Rodes, José Miguel

Formato:	info:eu-repo/semantics/article
Enlaces:	El acuífero del Valle de Toluca, localizado en el Altiplano Mexicano, se encuentra sometido a una intensa explotación para cubrir las necesidades de agua en el propio valle, así como parte de las de Ciudad de México. Los altos niveles…
Fecha:	2007-10-23
Recurso:	RUA Docencia

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418.

Biogeographical analysis of the tree flora of the Yucatan Peninsula
Ibarra-Manríquez, G - Villaseñor, JL - Duran, R - Meave del Castillo, Jorge Arturo

Formato:	Article
Enlaces:	Aim The purpose of this study was to examine the biogeographical relationships of the tree flora of the Yucatan Peninsula (YP2). To this aim we: (1) evaluated the affinities of political entities of tropical America with the Yucatan Peninsula, considering…
Fecha:	2011-01-22
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

419.

A comparison of traditional elasticity and variance-standardized perturbation analyses: a case study with the tropical tree species Manilkara zapota (Sapotaceae)
Cruz-Rodríguez, JA - López-Mata, L - Valverde-Valdés, María Teresa

Formato:	Article
Enlaces:	Knowledge of the population dynamics of tropical trees has expanded considerably in the past 20 years. An important observation deriving from these investigations is the confirmation that population behaviour varies both in time and space. A tool recently developed to…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

420.

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