Ana Cristina Monteiro, Eduardo Luis Gomes, A.S. Barreto, Marina F. Silva, Magda Aguiar Fontes, R.J.B. Bessa, J.P.C. Lemos,
... and veal which apply to purebred animals and "Vitela Tradicional do Montado"-PGI veal which applies to ... were the main contributors for the tenderness differences. Vitela Tradicional do Montado-PGI and Mertolenga-PDO veal ...
Tópico(s): Aquaculture Nutrition and Growth
2013 - Elsevier BV | Meat Science
Fernando Gamboa Rodríguez, J.L. Pérez Silva, Felipe Lara Rosano, Fabian Contreras, A.I. Miranda Vitela,
... on: Oxford Academic Google Scholar A.I. Miranda Vitela A.I. Miranda Vitela Centro de Instrumentos, Universidad Nacional Autónoma de México, ...
Tópico(s): Media and Digital Communication
2001 - Oxford University Press | Interacting with Computers
... 1990; 526: 235–240.CrossrefMedlineGoogle Scholar8 Durgam VR, Vitela M, Mifflin SW. Enhanced GABA-B receptor agonist ... rats. Hypertension. 1996; 27: 1291–1298.CrossrefMedlineGoogle Scholar11 Vitela M, Mifflin SW. Gamma-Aminobutyric acid (B) receptor- ...
Tópico(s): Nicotinic Acetylcholine Receptors Study
2010 - Lippincott Williams & Wilkins | Hypertension
F. Gosalbez, F.A. de Linera, J.L. Cofiño, J.L. Naya, Jorge Alberto Vitela Rodríguez, A. Ortuña,
The cases of 6 patients who had ventricular wall rupture after isolated mitral valve replacement and were seen in our service are reviewed. In the first 2, the main lesion was mitral stenosis and calcification was severe. Injury to the ventricular myocardium during removal of the valve was the causative factor in 1 and the most likely explanation in the other. In the other 4 patients, the dominant lesion was insufficiency. Calcium was absent, and fibrosis of the valves was minimal. Defects of technique ...
Tópico(s): Infective Endocarditis Diagnosis and Management
1981 - Elsevier BV | The Annals of Thoracic Surgery
G. B. Guo, M D Thames, François M. Abboud,
... H2543-H2549), Online publication date: 1-Oct-2007. Vitela M, Herrera-Rosales M, Haywood J and Mifflin ...
Tópico(s): Blood Pressure and Hypertension Studies
1983 - Lippincott Williams & Wilkins | Circulation Research
Octavio Castaños, Ramón López–Peña, Eduardo Nahmad-Achar, Jorge G. Hirsch, Enrique López‐Moreno, Javier E. Vitela,
Quantum phase transitions and observables of interest of the ground state in the Tavis–Cummings model are analyzed, for any number of atoms, by using a tensorial product of coherent states. It is found that this 'trial' state constitutes a very good approximation to the exact quantum solution, in that it globally reproduces the expectation values of the matter and field observables. These include the population and dipole moments of the two-level atoms and the squeezing parameter. Agreement in the ...
Tópico(s): Quantum Mechanics and Applications
2009 - IOP Publishing | Physica Scripta
Carolina E. Yahne, William R. Miller, Lilly Irvin-Vitela, J. Scott Tonigan,
The Magdalena Pilot Project provided outreach to Albuquerque women sex workers who were also using illicit drugs, primarily cocaine and heroin. This initial uncontrolled trial evaluated the feasibility and potential impact of motivational interviewing (MI) on change in drug use and HIV risk behaviors. Twenty-seven women were enrolled and interviewed about their substance use, health risk behaviors, and plans for change, using the client-centered, directive method of MI. Four months later, 25 women ( ...
Tópico(s): Homelessness and Social Issues
2002 - Elsevier BV | Journal of Substance Abuse Treatment
Angélica Villarruel‐López, Mayra Márquez-González, Luz Eduviges Garay Martínez, H. Zepeda, Alejandro Castillo, Lydia Mota de la Garza, E.A. Murano, Refugio Torres-Vitela,
A survey of Arcobacter spp. was conducted over a 12-month period in Guadalajara, Mexico. A total of 135 samples (45 lean ground beef samples, 45 lean ground pork samples, and 45 chicken samples, including drumsticks, gizzards, and ground or chopped breast) were collected from local butcheries. The samples were enriched in Johnson-Murano enrichment medium and then streaked onto Johnson-Murano agar plates. Typical colonies were subjected to microscopic and biochemical identification followed by polymerase ...
Tópico(s): Vibrio bacteria research studies
2003 - Elsevier BV | Journal of Food Protection
Nanci Edid Martínez-Gonzáles, Alejandro David Hernández-Herrera, Liliana Martínez, M.O. Rodríguez-García, M.R. Torres‐Vitela, Lydia Mota de la Garza, Alejandro Castillo,
To study the potential of three bacterial pathogens to cross-contaminate orange juice during extraction, normal operation conditions during juice preparation at food service establishments were simulated. The spread of Salmonella enterica serovar Typhimurium, Escherichia coli O157:H7, and Listeria monocytogenes from inoculated oranges to work surfaces and to the final product was determined. The transference of these three bacterial pathogens to orange juice made from uninoculated oranges with the ...
Tópico(s): Salmonella and Campylobacter epidemiology
2003 - Elsevier BV | Journal of Food Protection
Jaques Reifman, Javier E. Vitela,
The method of conjugate gradients is used to expedite the learning process of feedforward multilayer artificial neural networks and to systematically update both the learning parameter and the momentum parameter at each training cycle. The mechanism for the occurrence of premature saturation of the network nodes observed with the backpropagation algorithm is described, suggestions are made to eliminate this undesirable phenomenon, and the reason by which this phenomenon is precluded in the method ...
Tópico(s): Machine Learning and ELM
1994 - Taylor & Francis | Nuclear Technology
Javier Castro‐Rosas, Eva M. Santos, Carlos A. Gómez‐Aldapa, César Abelardo González-Ramírez, José Roberto Villagómez‐Ibarra, Alberto José Gordillo-Martínez, Angélica Villarruel‐López, M. del Refugio Torres-Vitela,
The incidence of coliform bacteria (CB), thermotolerant coliforms (TC), Escherichia coli, and Salmonella was determined for zucchini squash fruit. In addition, the behavior of four serotypes of Salmonella and a cocktail of three E. coli strains on whole and sliced zucchini squash at 25+/-2 degrees C and 3 to 5 degrees C was tested. Squash fruit was collected in the markets of Pachuca city, Hidalgo State, Mexico. CB, TC, E. coli, and Salmonella were detected in 100, 70, 62, and 10% of the produce, ...
Tópico(s): Essential Oils and Antimicrobial Activity
2010 - Elsevier BV | Journal of Food Protection
Hector Ortiz-Ibarra, Norberto Casillas, Víctor Soto, Maximiliano Bárcena-Soto, Refugio Torres-Vitela, W. de la Cruz, Sergio Gomez‐Salazar,
The use of an electrochemical reactor operated under different flow conditions to deposit silver from aqueous AgNO3 solutions and tartaric acid as an organic additive on a commercial activated carbon with ultimate bactericidal applications in water purification processes is presented. The characterization of carbon/silver samples was studied by BET, FTIR, X-ray diffraction, XPS, and SEM techniques. The bactericidal activity of the carbon/silver samples was tested on drinking water samples inoculated ...
Tópico(s): Electrochemical sensors and biosensors
2007 - Elsevier BV | Journal of Colloid and Interface Science
... de las personas con trastornos mentales prefiere automedicarse (Vitela, 2006). Entre ninos y adolescentes de 4 a ...
Tópico(s): Schizophrenia research and treatment
2007 - Ramon de la Fuente National Institute of Psychiatry | Salud Mental
M.R. Torres‐Vitela, M. MENDOZA-BERNARDO, Javier Castro‐Rosas, Carlos A. Gómez‐Aldapa, Luz Eduviges Garay Martínez, V. Navarro-Hidalgo, Angélica Villarruel‐López,
Handcrafted fresh cheeses are popular among consumers in Mexico. However, unsafe raw materials and inadequate food safety practices during cheese manufacture and preservation make them a potential public health risk. The incidence of Salmonella, Listeria, Escherichia coli O157:H7, and staphylococcal enterotoxin was analyzed in two types of fresh cheese (panela and adobera) commonly marketed in Mexico. A total of 200 samples, 100 panela and 100 adobera, were acquired from 100 wholesale milk product ...
Tópico(s): Salmonella and Campylobacter epidemiology
2011 - Elsevier BV | Journal of Food Protection
Javier Castro‐Rosas, Carlos A. Gómez‐Aldapa, Otílio Arturo Acevedo Sandoval, César Abelardo González-Ramírez, José Roberto Villagómez‐Ibarra, Norberto Chavarría‐Hernández, Angélica Villarruel‐López, M. del Refugio Torres-Vitela,
The frequencies of coliform bacteria (CB), thermotolerant coliforms (TC), Escherichia coli, and Salmonella were determined for jalapeño and serrano peppers. In addition, the behavior of four serotypes of Salmonella and three E. coli strains on whole and sliced jalapeño and serrano peppers as well as in blended sauce at 25 ± 2°C and 3 to 5°C was investigated. Chili peppers were collected from markets in the city of Pachuca, Hidalgo, Mexico. CB, TC, E. coli, and Salmonella were detected on serrano peppers ...
Tópico(s): Microbial Inactivation Methods
2011 - Elsevier BV | Journal of Food Protection
Carlos A. Gómez‐Aldapa, Claudio Alonso Díaz–Cruz, Angélica Villarruel‐López, M. del Refugio Torres-Vitela, Javier Añorve‐Morga, Esmeralda Rangel‐Vargas, Jorge F. Cerna-Cortés, Gabriel Vigueras-Ramírez, Javier Castro‐Rosas,
Pulque is a typical fermented alcoholic beverage of central Mexico, produced from the nectar of maguey agave plants. Production systems are largely artisanal, with inadequate hygiene conditions and exposure to multiple contamination sources. No data exist on pulque microbiological safety and the behavior of pathogenic microorganisms in agave nectar and pulque. An initial trial was done of the behavior of Salmonella Typhimurium, Staphylococcus aureus, Listeria monocytogenes, and Shigella flexneri ...
Tópico(s): Fermentation and Sensory Analysis
2011 - Elsevier BV | Journal of Food Protection
Ana Cristina Monteiro, Magda Aguiar Fontes, R.J.B. Bessa, José A. M. Prates, J.P.C. Lemos,
Tópico(s): Animal Nutrition and Physiology
2011 - Elsevier BV | Food Chemistry
Cosme Alvarado‐Esquivel, C. García-Machado, Domingo Alvarado-Esquivel, A. M. González-Salazar, C Briones-Fraire, J. Vitela-Corrales, Isabelle Villena, J. P. Dubey,
Little is known concerning the prevalence of Toxoplasma gondii infection in pigs in Mexico. Accordingly, antibodies to T. gondii were determined in 1,074 domestic pigs in Durango, Mexico using the modified agglutination test. Two groups (A, B) of pigs were sampled: Group A pigs (n = 555) were raised in 3 geographical regions in Durango State and Group B pigs (n = 519) were from Sonora State but slaughtered in Durango City. Overall, antibodies to T. gondii were found in 136 (12.7%) of 1,074 pigs with titers ...
Tópico(s): Rabies epidemiology and control
2011 - American Society of Parasitologists | Journal of Parasitology
Cosme Alvarado‐Esquivel, C. García-Machado, J. Vitela-Corrales, Isabelle Villena, J. P. Dubey,
Little is known concerning the seroprevalence of Toxoplasma gondii infection in goats in Mexico. Antibodies to T. gondii were determined in 562 goats in Durango, Mexico using the modified agglutination test. Goats were raised in 12 farms in two geographical regions: semi-desert (n=70) and mountains (n=492). Overall, antibodies to T. gondii were found in 174 (31%) of 562 goats, with titers of 1:25 in 18, 1:50 in 12, 1:100 in 10, 1:200 in 30, 1:400 in 32, 1:800 in 40, 1:1600 in 17, and 1:3200 or higher ...
Tópico(s): Herpesvirus Infections and Treatments
2011 - Elsevier BV | Veterinary Parasitology
Juan José Varela Hernández, E. Cabrera-Díaz, Marco Antonio Cardona-López, Luz María Ibarra-Velázquez, Héctor Rangel‐Villalobos, Alejandro Castillo, M.R. Torres‐Vitela, Agustín Ramírez-Álvarez,
The contamination of beef carcasses with Shiga toxin-producing O157:H7 and non-O157 Escherichia coli (STEC) obtained from a slaughter plant in Guadalajara, Mexico was investigated. A total of 258 beef carcasses were sampled during a 12-month period. All samples were assayed for STEC by selective enrichment in modified tryptone soy broth supplemented with cefixime, cefsulodin and vancomycin, followed by plating on Sorbitol MacConkey Agar supplemented with cefixime and tellurite (CT-SMAC). Simultaneously, ...
Tópico(s): Salmonella and Campylobacter epidemiology
2006 - Elsevier BV | International Journal of Food Microbiology
Alejandro Castillo, Angélica Villarruel‐López, V. Navarro-Hidalgo, N.E. Martínez-González, M.R. Torres‐Vitela,
A survey of the presence of Salmonella and Shigella in freshly squeezed orange juice and related samples was conducted in Guadalajara, Mexico. One hundred samples of freshly squeezed orange juice were collected from 49 street booths and 51 small food service establishments. In addition, 75 fresh orange samples, each consisting of five orange units, and 75 wiping cloths were collected from the same establishments from which juice had been collected. Salmonella was isolated from 14, 20, and 23% of ...
Tópico(s): Salmonella and Campylobacter epidemiology
2006 - Elsevier BV | Journal of Food Protection
Alma Veronica Vitela-Rodriguez, J. René Rangel-Méndez,
Different activated carbons modified with iron hydro(oxide) nanoparticles were tested for their ability to adsorb arsenic from water. Adsorption isotherms were determined at As (V) concentrations < 1 ppm, with varying pH (6, 7, 8) and temperature (25 and 35 °C). Also, competition effect of anions on the As (V) adsorption capacity was evaluated using groundwater. The surface areas of the modified activated carbons ranged from 632 m2 g−1 to 1101 m2 g−1, and their maximum arsenic adsorption capacity varied ...
Tópico(s): Heavy Metal Exposure and Toxicity
2012 - Elsevier BV | Journal of Environmental Management
M. del Refugio Torres-Vitela, Carlos A. Gómez‐Aldapa, Jorge F. Cerna-Cortés, Angélica Villarruel‐López, Esmeralda Rangel‐Vargas, Javier Castro‐Rosas,
Coliform bacteria (CB), faecal coliforms (FC), Escherichia coli, diarrhoeagenic E. coli pathotypes (DEP) and Salmonella frequencies were determined for fresh carrot juice from restaurants in Pachuca city, Mexico. Two hundred and eighty carrot juice samples were purchased in three types of restaurants: (A), national chain restaurants; (B), local restaurants; and (C), very small restaurants. Two restaurants for each A and B, and three for C, were included. Forty juice samples were purchased at each restaurant. ...
Tópico(s): Salmonella and Campylobacter epidemiology
2012 - Oxford University Press | Letters in Applied Microbiology
Cosme Alvarado‐Esquivel, A. M. González-Salazar, Domingo Alvarado-Esquivel, F. Ontiveros-Vázquez, J. Vitela-Corrales, Isabelle Villena, J. P. Dubey,
Little is known concerning the seroprevalence of Toxoplasma gondii infection in chickens (Gallus domesticus) in Mexico. Antibodies to T. gondii were determined in 519 chickens in Durango, Mexico using the modified agglutination test (MAT). Two groups (A, B) of chickens were sampled. Group A chickens (n = 51) were raised in backyards in 7 municipalities in 3 geographical regions in Durango State. Group B chickens were raised in farms in the Mexican States of Sinaloa (n = 289) and Nayarit (n = 179) but slaughtered ...
Tópico(s): Parasitic Infections and Diagnostics
2012 - American Society of Parasitologists | Journal of Parasitology
Jorge F. Cerna-Cortés, Carlos A. Gómez‐Aldapa, Esmeralda Rangel‐Vargas, M. del Refugio Torres-Vitela, Angélica Villarruel‐López, Javier Castro‐Rosas,
The chili pepper is a very important crop in Mexico. Diarrheagenic E. coli pathotypes (DEPs) are important foodborne pathogens in different countries including Mexico. No data exists on DEPs presence on fresh jalapeño and serrano pepper and little data have been published on the microbiological quality of these peppers. The frequencies of coliform bacteria (CB), thermotolerant coliforms (TC), E. coli and DEPs were determined for jalapeño and serrano peppers. Of 100 serrano samples, CB, TC, E. coli ...
Tópico(s): Viral gastroenteritis research and epidemiology
2012 - Elsevier BV | Food Microbiology
Cosme Alvarado‐Esquivel, C. García-Machado, Domingo Alvarado-Esquivel, J. Vitela-Corrales, Isabelle Villena, J. P. Dubey,
The seroprevalence of Toxoplasma gondii infection in sheep (Ovis aries) in northern Mexico is largely unknown. Antibodies to T. gondii were determined in serum samples from 511 sheep from 8 farms in Durango State, Mexico, using the modified agglutination test (MAT). Sheep were raised in 3 geographical regions, i.e., mountainous (n = 68), semi-desert (n = 132), and valley (n = 311). Overall, T. gondii antibodies were found in 77 (15.1%) of 511 sheep, with MAT titers of 1∶25 in 27, 1∶50 in 10, 1∶100 in 11, 1∶ ...
Tópico(s): Herpesvirus Infections and Treatments
2012 - American Society of Parasitologists | Journal of Parasitology
Javier E. Vitela, Octavio Castaños,
Abstract This work discusses a sequential niching algorithm for multiple optimal determination. The procedure consists of a sequence of genetic algorithms (GA) runs, which incorporate a gradient-based hill-climbing algorithm, and make use of a derating function and of niching and clearing techniques to promote the occupation of different niches in the function to be optimized. Thus, the algorithm searches the solution space eliminating from the fitness landscape previously located peaks forcing the ...
Tópico(s): Evolutionary Algorithms and Applications
2012 - Elsevier BV | Applied Mathematics and Computation
Melissa Vitela, Myrna Herrera‐Rosales, Joseph R. Haywood, Steven W. Mifflin,
Despite its usefulness as a nongenetic model of hypertension, little information is available regarding baroreflex function in the Grollman, renal wrap model of hypertension in the rat. Baroreflex regulation of renal sympathetic nerve activity (RSNA) and heart rate (HR) were studied in male, Sprague-Dawley rats hypertensive (HT) for 1 or 4-6 wk after unilateral nephrectomy and figure-8 ligature around the remaining kidney or normotensive (NT) after sham surgery. Rats were anesthetized with Inactin and ...
Tópico(s): Hormonal Regulation and Hypertension
2005 - American Physiological Society | AJP Regulatory Integrative and Comparative Physiology
Carlos Cruz-Vázquez, Irene Vitela Mendoza, Miguel Ramos Parra, Zeferino García-Vázquez,
The influence of temperature, humidity and rainfall on field population trend of stable fly, Stomoxys calcitrans, over three consecutive years in two dairy farms located in semiarid climate in Aguascalientes State, in Mexico, were determined.The dairies were visited weekly between April 1999 to March 2002, on each occasion 10% of the dairy cows were selected making direct counts of stable flies observed front the legs.The occurrence of stable fly adults from weekly counts was divided in four population ...
Tópico(s): Insect behavior and control techniques
2004 - | Parasitología latinoamericana
Produção Nacional
Revisado por pares
Ana Carolina Rodrigues Dias, Melissa Vitela, Eduardo Colombari, Steven W. Mifflin,
The neuromodulatory effect of NO on glutamatergic transmission has been studied in several brain areas. Our previous single-cell studies suggested that NO facilitates glutamatergic transmission in the nucleus of the solitary tract (NTS). In this study, we examined the effect of the nitric oxide synthase (NOS) inhibitor N(G)-nitro-L-arginine methyl ester (L-NAME) on glutamatergic and reflex transmission in the NTS. We measured mean arterial pressure (MAP), heart rate (HR), and renal sympathetic nerve ...
Tópico(s): Nitric Oxide and Endothelin Effects
2004 - American Physical Society | AJP Heart and Circulatory Physiology