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GLORIA EUGENIA MAGAÑA COTA (2012)
En esta contribución se presenta una revisión de la fauna de quirópteros del estado de Guanajuato, desarrollada principalmente con una perspectiva histórica aunque también con el propósito de iniciar la puesta al día de su conocimiento. Se revisó la literatura disponible desde la época y obra de Alfredo Dugès en el Siglo XIX hasta 2005. También se revisó la sinonimia, con lo que aquí se actualiza la nomenclatura científica. Se registra al murciélago mastín mayor (Promops centralis) por primera vez para Guanajuato y se provee una lista consolidada de las especies; 17 hasta el momento. Se hace un breve diagnóstico del estado del conocimiento sobre los murciélagos de Guanajuato y se comenta sobre la importancia de mejorarlo en los plazos corto y medio / Óscar Sánchez y Gloria Eugenia Magaña Cota.
BIOLOGÍA Y QUÍMICA BIOLOGÍA ANIMAL (ZOOLOGÍA) Murciélagos - Guanajuato (Estado) Quirópteros Nuevo registro estatal Revisión histórica Taxonomía animal Bats - Guanajuato (Estado) Chiroptera New state record Historic revision Animal taxonomy
The species Azadinium spinosum, a small thecate dinoflagellate, originally and recently described from the North Sea, was found for the first time in the tropical Pacific coast of Mexico. Description by light and scanning electron microscopy and abundance data are here provided. The morphology of the species agrees with the original description, including size, shape, presence of posterior spine and tabulation details. Less than 300 cells L-1 were found in one station in the Pacific coast of Mexico. This species has been recognized as a producer of azaspiracid toxins (AZAs) in the North Sea, although no toxin analysis has been made as yet in Mexican waters.
Ambystoma leorae (TAylOR, 1943), is endemic to the “Sierra Nevada” mountains of central México. its known distribution (Figs. 1A, 1B) is restricted to six locations within the protected area “iztaccihuatl Popocatepetl National Park” (iPNP). The salamander was originally described from the town of Rio Frio (TAylOR 1943); later it was recorded in three sites surrounding the area (vEgA-lóPEZ & AlvAREZ 1992; lE MOS-ESPiNAl et al. 1999), and in another two southern sites (lEMOS-ESPiNAl & AMAyA EliAS 1985; vEgA-lóPEZ & AlvAREZ 1992). These records are restricted to the upper tributaries of the Balsas River in the west of the iPNP, dispersed within an area of about 28 km x 0.65 km.
Autonomous university of the State of Mexico (3530/2013MT)
"Information concerning Neastacilla californica is currently scarce. In fact, its distribution range is not yet well defined; this species is currently reported from Point Conception to Point Loma along the California coast, USA, and also in the Gulf of California, Mexico. In this note, we present a new zoogeographical record of N. californica with information derived from a sample of taken in July 2012 during a monitoring expedition in the area inside of the Guerrero Negro Lagoon, at Peninsula de Baja California, Mexico, at 4.3 latitudinal degrees from the southernmost point reported on the Pacific coast. Additionally, we present a comparative summary of the main diagnostic features of this species and a series of photographs that allow observing characteristics of N. californica, contributing to the knowledge of the species."
Rahma Adam (2019)
This manual provides guidance for considering gender and social inclusion when designing and conducting demonstration plots and field days, to enhance the effectiveness of these two approaches in improving farmers’ knowledge and adoption of new, improved varieties. The first section of the manual defines key concepts, including agricultural demonstration plots, and gender and social inclusion, among others. The second section focuses on the importance of gender and social inclusion in the selection matrix for situating and designing demo plots. The final section reviews why gender matters when planning and executing field days.
The health system for any country is one of the top priorities to guarantee the proper development for their citizens. For the specific case of Mexico, management of medical records is still being done using physical files whether patient attends a public or private physician or hospital. This poses a potential problem for the health structure and the patient because physical files tend to deteriorate, damage, could be stolen or mishandled. One possibility is to evolve from the use of physical files and create electronic medical records. Mexico already has an official standard for medical records; this standard could serve as the foundation to devise an electronic universal record. The idea for the electronic universal record is to serve as the base to implement an electronic public health scheme. This article will provide several key aspects to take into account in order to provide an efficient, secure and cost efficient electronic medical record. Aspects to be considered include: standardized medical nomenclature, clinical procedures, data transmission standards, legal aspects, electronic security, and data storage schemes. The impact of this proposal for Mexico will be discussed in detail.
The so-called unarmoured dinoflagellates are not a "natural" (phylogenetic) group but they lack thecal plates, share fragility and possess relatively few morphological characters that can be positively identified. This study depicts the species composition of unarmoured dinoflagellates collected from sites along the coasts of the Gulf of Mexico and the Mexican Pacific and includes their descriptions and illustrations. We identified a total of 25 species belonging to 13 genera and six families that were studied through various techniques using light and scanning electron microscopy. Seven new records for the Mexican Pacific are annotated here that include Amphidinium flagelans Schiller, Gyrodinium cochlea Lebour, G. glaebum Hulburt, G. metum Hulburt, Karenia selliformis Haywood, Steidinger et MacKenzie, Karlodinium ballantinum de Salas, and K. veneficum (Ballantine) Larsen. The genera Karenia and Karlodinium belong to the family Kareniaceae, characterised for encompassing the largest number of toxic species among the unarmoured dinoflagellates, and many species produce algal blooms around the world. Ceratoperidinium falcatum and Levanderina fissa are names recently proposed elsewhere as new taxonomic combinations and are also included here. The diversity of unarmoured dinoflagellates has been strongly underestimated in the past and the new records reported here confirm this. Further studies, including traditional and modern concepts and protocols (including molecular tools), should be undertaken in the near future to understand their real diversity.
The new mulinane diterpenoids 1 and 2 were isolated from the EtOAc extract of Mulinum crassifolium, while the rearranged mulinane 5, which was isolated for the first time from a natural source, was isolated from Azorella compacta. Compounds 1-2 were prepared by semi-synthesis thorough acetylation of the diterpene 17-acetoxymulinic acid (3). A mechanism of reaction was proposed, while the structures of the new compounds were elucidated on the basis of comprehensive spectroscopic analysis and computational methods.
The GASTROPODA class, one of the best known marine environments, is formed by a large number of species and the shape of their shell structure varies greatly. These mollusks are distributed from the intertidal zone all the way to the abyssal zone, and there are also swimming and floating species. This research was conducted at seven sites, located in the Marina Priority Region 32 (MPR 32), located in the State of Guerrero, Mexico. The aim of this report is to document the scope of the geographic distribution of the 34 species of GASTROPODA class. 11,263 total specimens were analyzed. 108 species were identified, of which four species are new records for Mexico, 15 for the Transitional Mexican Pacific, 11 for the State of Guerrero and four for the MPR 32. Here we report a significant number of new records of species of class GASTROPODA found on the rocky intertidal zone of the MPR 32. The reporting of these new records, demonstrates the need to focus research efforts on the study of marine diversity, since knowledge in this respect is quite incomplete, especially regarding marine mollusks, a fact that has been reported by the National Commission for the Management and Use of Biodiversity