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https://www.readbyqxmd.com/read/29120094/visitor-effect-on-the-behavior-of-a-group-of-spider-monkeys-ateles-geoffroyi-maintained-at-an-island-in-lake-catemaco-veracruz-mexico
#1
Sergio Pérez-Galicia, Manuel Miranda-Anaya, Domingo Canales-Espinosa, Jairo Muñoz-Delgado
We analyzed the effect of human visitors on the behavior of a group of spider monkeys (Ateles geoffroyi) kept on a small tourist island. Although the spider monkey is a common species in zoos, there are very few specific studies on visitor effects on these monkeys. We conducted behavioral observations on the group of spider monkeys to evaluate the effect of visitors. We also used actimetry devices to measure the variations in the spider monkeys' locomotor activity associated with human presence. With regard to the effect on behavior, we found an increase in self-directed behaviors and a decrease in vocalization, both associated with human presence...
November 9, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29079749/swainson-s-thrushes-do-not-show-strong-wind-selectivity-prior-to-crossing-the-gulf-of-mexico
#2
Rachel T Bolus, Robert H Diehl, Frank R Moore, Jill L Deppe, Michael P Ward, Jaclyn Smolinsky, Theodore J Zenzal
During long-distance fall migrations, nocturnally migrating Swainson's Thrushes often stop on the northern Gulf of Mexico coast before flying across the Gulf. To minimize energetic costs, trans-Gulf migrants should stop over when they encounter crosswinds or headwinds, and depart with supportive tailwinds. However, time constrained migrants should be less selective, balancing costs of headwinds with benefits of continuing their migrations. To test the hypotheses that birds select supportive winds and that selectivity is mediated by seasonal time constraints, we examined whether local winds affected Swainson's Thrushes' arrival and departure at Ft...
October 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29046025/-asthma-associated-oral-and-dental-health-repercussions-in-children-aged-6-to-12-years
#3
Juana Angélica Ramos-Ríos, Esperanza Ramírez-Hernández, Eliza Mireya Vázquez-Rodríguez, Francisco Vázquez-Nava
BACKGROUND: Asthma, which is characterized by mouth breathing and by the use of drugs for its treatment, affects between 1 and 30% of children and adolescents. There are only few studies reporting its impact on the oral cavity. OBJECTIVE: To find out the most common asthma-associated repercussions in 6 to 12-year-old children. METHODS: Cross-sectional, comparative, analytical study carried out in 2 primary schools from Coclique, Veracruz, Mexico, in 6 to 12-year-old children...
July 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29023555/assessing-the-individual-risk-of-fecal-poliovirus-shedding-among-vaccinated-and-non-vaccinated-subjects-following-national-health-weeks-in-mexico
#4
MULTICENTER STUDY
Leticia Ferreyra-Reyes, Luis Pablo Cruz-Hervert, Stephanie B Troy, ChunHong Huang, Clea Sarnquist, Guadalupe Delgado-Sánchez, Sergio Canizales-Quintero, Marisa Holubar, Elizabeth Ferreira-Guerrero, Rogelio Montero-Campos, Mauricio Rodríguez-Álvarez, Norma Mongua-Rodriguez, Yvonne Maldonado, Lourdes García-García
BACKGROUND: Mexico introduced inactivated polio vaccine (IPV) into its routine immunization (RI) schedule in 2007 but continued to give trivalent oral polio vaccine (tOPV) twice a year during national health weeks (NHW) through 2015. OBJECTIVES: To evaluate individual variables associated with poliovirus (PV) shedding among children with IPV-induced immunity after vaccination with tOPV and their household contacts. MATERIALS AND METHODS: We recruited 72 children (both genders, ≤30 months, vaccinated with at least two doses of IPV) and 144 household contacts (both genders, 2 per household, children and adults) between 08/2010 and 09/2010 in Orizaba, Veracruz...
2017: PloS One
https://www.readbyqxmd.com/read/28957761/mitochondrial-activity-in-fern-spores-of-cyathea-costaricensis-as-an-indicator-of-the-impact-of-land-use-and-water-quality-in-rivers-running-through-cloud-forests
#5
Alexis Joseph Rodríguez-Romero, Axel Eduardo Rico-Sánchez, Myriam Catalá, Jacinto Elías Sedeño-Díaz, Eugenia López-López
Early-warning biomarkers, such as mitochondrial activity, have become a key tool in ecosystem assessment. This study aims to evaluate the response of mitochondrial activity in spores of the autochthonous fern Cyathea costaricensis as a bioassessment tool concurrently with land use and physicochemical evaluation in 11 sites along Bobos River, Veracruz, Mexico, to assess river water quality. Bobos River is located in the Nautla basin, northeastern Veracruz (Mexico); the upper river runs through a protected natural area (Filobobos River and adjacent areas)...
September 21, 2017: Chemosphere
https://www.readbyqxmd.com/read/28936216/genetic-tracing-of-jatropha-curcas-l-from-its-mesoamerican-origin-to-the-world
#6
Haiyan Li, Suguru Tsuchimoto, Kyuya Harada, Masanori Yamasaki, Hiroe Sakai, Naoki Wada, Atefeh Alipour, Tomohiro Sasai, Atsushi Tsunekawa, Hisashi Tsujimoto, Takayuki Ando, Hisashi Tomemori, Shusei Sato, Hideki Hirakawa, Victor P Quintero, Alfredo Zamarripa, Primitivo Santos, Adel Hegazy, Abdalla M Ali, Kiichi Fukui
Jatropha curcas L. (Jatropha), a shrub species of the family Euphorbiaceae, has been recognized as a promising biofuel plant for reducing greenhouse gas emissions. However, recent attempts at commercial cultivation in Africa and Asia have failed because of low productivity. It is important to elucidate genetic diversity and relationship in worldwide Jatropha genetic resources for breeding of better commercial cultivars. Here, genetic diversity was analyzed by using 246 accessions from Mesoamerica, Africa and Asia, based on 59 simple sequence repeat markers and eight retrotransposon-based insertion polymorphism markers...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28893428/correlation-between-preoperative-serum-alpha-fetoprotein-levels-and-survival-with-respect-to-the-surgical-treatment-of-hepatocellular-carcinoma-at-a-tertiary-care-hospital-in-veracruz-mexico
#7
G Martínez-Mier, S Esquivel-Torres, A Nava-Lacorte, F A Lajud-Barquín, S Zilli-Hernández, L M Vázquez-Ramírez
INTRODUCTION: Preoperative serum alpha-fetoprotein levels can have predictive value for hepatocellular carcinoma survival. AIM: Our aim was to analyze the correlation between preoperative serum alpha-fetoprotein levels and survival, following the surgical treatment of hepatocellular carcinoma. METHODS: Nineteen patients were prospectively followed (07/2005-01/2016). An ROC curve was created to determine the sensitivity and specificity of alpha-fetoprotein in relation to survival (Kaplan-Meier)...
September 8, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28887580/removal-of-two-high-molecular-weight-pahs-from-soils-with-different-water-content
#8
Lilia Corona, Luc Dendooven, Anaí Chicken, Omar Hernández, Rosario Iturbe
Polycyclic aromatic hydrocarbons (PAHs) such as benz[a]anthracene (BA) and dibenz[a,h]anthracene (DBA), which are considered toxic, are frequently found in contaminated soils in Mexico. A laboratory-scale study monitored the degradation of the mixture of these two PAHs in three soils from different Mexican states (Tabasco, Morelos and Veracruz), each with different organic matter content, particle size distribution and incubated under different water content conditions. The hydrocarbons were extracted using microwave digestion and quantified by GC/MS...
September 8, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28881955/calling-behavior-copulation-time-and-reproductive-compatibility-of-corn-strain-fall-armyworm-lepidoptera-noctuidae-from-populations-in-mexico
#9
Samuel Cruz-Esteban, Julio C Rojas, Edi A Malo
The calling behavior, mating time, and the reproductive compatibility of virgin adults of fall armyworms, Spodoptera frugiperda (J. E. Smith), were studied in this work. Larvae were collected on maize (Zea mays L.) from six states located on the Pacific coast (Chiapas, Michoacán, and Sinaloa), on the Gulf of Mexico (Veracruz and Yucatan), and in central Mexico (Morelos). Before the experiments, insects were reared under laboratory conditions for one generation. We recorded the age at which females called for the first time, the onset time of calling, the duration of calling, the onset time of copulation, and the duration of copulation...
August 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28881485/indices-of-anti-dengue-immunoglobulin-g-subclasses-in-adult-mexican-patients-with-febrile-and-hemorrhagic-dengue-in-the-acute-phase
#10
Araceli Posadas-Mondragón, José Leopoldo Aguilar-Faisal, Adolfo Chávez-Negrete, Edith Guillén-Salomón, Verónica Alcántara-Farfán, Lucero Luna-Rojas, Amanda Marineth Ávila-Trejo, Judith Del Carmen Pacheco-Yépez
Heterologous secondary infections are at increased risk of developing dengue hemorrhagic fever (DHF) because of antibody-dependent enhancement (ADE). IgG subclasses can fix and activate complement and bind to Fcɣ receptors. These factors may also play an important role in the development of ADE and thus in the pathogenesis of DHF. The aim of this study was to analyze the indices of anti-dengue IgG subclasses in adult patients with febrile and hemorrhagic dengue in the acute phase. In 2013, 129 patients with dengue fever (DF) and 57 with DHF in Veracruz, Mexico were recruited for this study and anti-dengue IgM and IgG determined by capture ELISA...
October 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28792536/diversity-and-composition-of-herbaceous-angiosperms-along-gradients-of-elevation-and-forest-use-intensity
#11
Jorge Antonio Gómez-Díaz, Thorsten Krömer, Holger Kreft, Gerhard Gerold, César Isidro Carvajal-Hernández, Felix Heitkamp
Terrestrial herbs are important elements of tropical forests; however, there is a lack of research on their diversity patterns and how they respond to different intensities of forest-use. The aim of this study was to analyze the diversity of herbaceous angiosperms along gradients of elevation (50 m to 3500 m) and forest-use intensity on the eastern slopes of the Cofre de Perote, Veracruz, Mexico. We recorded the occurrence of all herbaceous angiosperm species within 120 plots of 20 m x 20 m each. The plots were located at eight study locations separated by ~500 m in elevation and within three different habitats that differ in forest-use intensity: old-growth, degraded, and secondary forest...
2017: PloS One
https://www.readbyqxmd.com/read/28768523/genetic-signature-analysis-of-perkinsus-marinus-in-mexico-suggests-possible-translocation-from-the-atlantic-ocean-to-the-pacific-coast-of-mexico
#12
Juan Pablo Ek-Huchim, Ma Leopoldina Aguirre-Macedo, Monica Améndola-Pimenta, Victor Manuel Vidal-Martínez, Juan Antonio Pérez-Vega, Raúl Simá-Alvarez, Isabel Jiménez-García, Roberto Zamora-Bustillos, Rossanna Rodríguez-Canul
BACKGROUND: The protozoan Perkinsus marinus (Mackin, Owen & Collier) Levine, 1978 causes perkinsosis in the American oyster Crassostrea virginica Gmelin, 1791. This pathogen is present in cultured C. virginica from the Gulf of Mexico and has been reported recently in Saccostrea palmula (Carpenter, 1857), Crassostrea corteziensis (Hertlein, 1951) and Crassostrea gigas (Thunberg, 1793) from the Mexican Pacific coast. Transportation of fresh oysters for human consumption and repopulation could be implicated in the transmission and dissemination of this parasite across the Mexican Pacific coast...
August 2, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28763085/-dr-ra%C3%A3%C2%BAl-gonz%C3%A3-lez-enr%C3%A3-quez-and-the-establishment-of-the-latin-american-psychiatric-association
#13
César Campos-Farfán
At the first World Psychiatry Congress (Paris, 1950), the Mexican doctor Raúl González Enríquez (1906-1952), at his own proposal and motion, created the Latin American Psychiatric Association (APAL), and the next year, between December 8th and 11th, 1951, with two branch offices already established in Mexico City and Jalapa, Veracruz, held the first APAL Congress, attended by delegates from 14 countries. That first Congress and the efforts of the founder have been maliciously dismissed in the annals of Hispanic American psychiatric history; thus, it is necessary to account for the events that passed, with the purpose of reclaiming the commendable work of such a distinguished, internationally renown psychiatrist...
May 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/28750333/mexican-consumers-at-the-point-of-meat-purchase-beef-choice
#14
T M Ngapo, D Braña Varela, M S Rubio Lozano
Within-consumer preference replication achieved through systematic image manipulation was used in consumer surveys in four cities across Mexico (Mexico City, n=195; Guadalajara, n=100; Hermosillo, n=132; Veracruz, n=61) to study beef preferences. Images of beef steaks controlled for lean and fat colour, fat cover and marbling were presented to consumers to determine the characteristics used in beef choice and the levels of preference of these characteristics. The most important choice criteria were fat cover (62% preferring little fat cover) and marbling (59% preferring non-marbled)...
July 18, 2017: Meat Science
https://www.readbyqxmd.com/read/28738511/litter-thickness-but-not-root-biomass-explains-the-average-and-spatial-structure-of-soil-hydraulic-conductivity-in-secondary-forests-and-coffee-agroecosystems-in-veracruz-mexico
#15
B E Marín-Castro, S Negrete-Yankelevich, D Geissert
Secondary forests and coffee agroecosystems are considered good alternatives for conservation of a high capacity for water filtration in the soil where tropical montane cloud forests (TMCF) once grew; however, it is not clear which characteristics of the vegetation modulate the field saturated hydraulic conductivity of the soil (Kfs) and whether these characteristics persist in such derived systems. Here, we explore how changes in vegetation between secondary forests and coffee agroecosystems have consequences for the average value and spatial variation of litter thickness and root biomass, and whether these differences can explain the Kfs and its spatial distribution...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28630868/serum-dried-samples-to-detect-dengue-antibodies-a-field-study
#16
Angelica Maldonado-Rodríguez, Othon Rojas-Montes, Guillermo Vazquez-Rosales, Adolfo Chavez-Negrete, Magdalena Rojas-Uribe, Araceli Posadas-Mondragon, Leopoldo Aguilar-Faisal, Ana Maria Cevallos, Beatriz Xoconostle-Cazares, Rosalia Lira
BACKGROUND: Dried blood and serum samples are useful resources for detecting antiviral antibodies. The conditions for elution of the sample need to be optimized for each disease. Dengue is a widespread disease in Mexico which requires continuous surveillance. In this study, we standardized and validated a protocol for the specific detection of dengue antibodies from dried serum spots (DSSs). METHODS: Paired serum and DSS samples from 66 suspected cases of dengue were collected in a clinic in Veracruz, Mexico...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28610195/three-new-species-of-i-pergalumna-i-acari-oribatida-galumnidae-from-the-tropical-rainforest-of-veracruz-mexico
#17
José G Palacios-Vargas, Fernando Villagomez
Three new species of oribatid mites of the genus Pergalumna from a tropical rain forest in Veracruz, Mexico are described. Pergalumna hypergranulosa sp. nov. differs from Pergalumna granulatus Balogh & Mahunka, 1967 by unilaterally barbulated bothridial setae, elongated notogastric porose areas, and also a more profuse granulation of the cerotegument. Pergalumna obsidiana sp. nov. differs from P. granulatus by the unilateral barbulation of bothridial setae and the presence of protuberances on the genital plates; from Pergalumna paralongisetosa Ermilov & Kalúz, 2012 by a diverging cerotegumental granulation on the notogaster...
March 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610098/new-state-records-and-updated-checklist-of-aphodiini-and-eupariini%C3%A2-coleoptera-scarabaeidae-aphodiinae-from-mexico
#18
Pablo Minor
Thirty one new state records of species of Aphodiinae (Coleoptera: Scarabaeidae) from Mexico are presented, 24 species belong to Aphodiini and seven species to Eupariini into the genera Agrilinellus, Alloblackburneus, Aphotaenius, Ataenius, Blackburneus, Cephalocyclus, Coelotrachelus, Euparia, Euparixia, Geomyphilus, Gonaphodiellus, Gonaphodiopsis, Haroldiellus, Liothorax, Nialaphodius, Odontolytes, Oscarinus, Pharaphodius, and Planolinellus. New records are from the states of Aguascalientes, Baja California, Baja California Sur, Campeche, Colima, Chiapas, Estado de México, Guerrero, Hidalgo, Jalisco, Michoacán, Morelos, Nayarit, Puebla, Sonora, Tabasco, Tamaulipas, Tlaxcala, Veracruz, Zacatecas, and Distrito Federal...
March 22, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609907/morphology-variation-of-lutzomyia-cruciata-eggs-diptera-psychodidae-phlebotominae-in-southern-mexico
#19
Ana Celia Montes DE Oca-Aguilar, Oscar Mikery-Pacheco, Alfredo Castillo, Eduardo A Rebollar-Téllez, Peter M Piermarini, Sergio Ibáñez-Bernal
The sand fly Lutzomyia cruciata has been associated with the transmission of Leishmania mexicana to humans in Mexico. This species has a wide distribution in Mexico occupying different microhabitats and environments. In this work comparisons of the egg exochorion of Lu. cruciata from different physiographic areas are presented. Study sites are from different states of southern Mexico. Exochorion analysis was carried out using scanning electron microscopy (SEM). Results show differences in the exochorionic pattern among samples from Veracruz (AVER), Yucatán (HOYU) and Chiapas (TACH)...
May 2, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609884/new-species-of-narberdia-burke-from-m%C3%A3-xico-and-central-america-coleoptera-curculionidae
#20
Macotulio Soto-Hernández
Four new species of the previously monotypic genus Narberdia Burke are described. All of them are intimately associated with plants of the genus Bernardia (Euphorbiaceae). Narberdia cervantae Soto-Hernández, new species (México, Jalisco on Bernardia spongiosa McVaugh), N. sarukhani Soto-Hernández, new species (México, Veracruz and Costa Rica on B. mexicana (Hook. & Arn.) Müll. Arg. and B. nicaraguensis Standl. & L.O. Williams), N. dugesi Soto-Hernández (México, Querétaro and Michoacán on B. mexicana and B...
May 8, 2017: Zootaxa
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