TIP. Revista especializada en ciencias químico-biológicas

http://www.scielo.org.mx/scielo.php?script=sci_issues&pid=1405-888X&lng=pt&nrm=iso

List of Papers (Total 14)

El mundo feliz de las hormigas

The successful life of ants has evolved due to the division of reproductive labor among fertile (queens) and sterile individuals (workers), and to the support labor by different kinds of workers. Because of this and their age on Earth, ants represent an evolutionary issue in relation to their ability for social development and to survive natural catastrophes. The division of...

Componentes conductuales del cortejo incrementan la exposición a parásitos en el pez vivíparo Xenoophorus captivus

A central issue in sexual selection theory is to understand why there are female preferences for males displaying ornaments. One theory proposes that displaying male secondary sexual characters is costly, and that this reveals information about the male's phenotypic quality. Here, we used the viviparous Xenoophorus captivus (Goodeidae), a fish whose males often remove the bottom...

Estudio sintético y caracterización por infrarrojo de derivados 2-(amino)-1,4-naftoquinona y su evaluación antibacteriana preliminar

Naphthoquinones are compounds of natural or synthetic origin which have shown important biological activities, as antibacterial, antifungal, antimalarial and anticancer agents. This paper reports the 2-(amine)-1,4-naphthoquinone synthesis using different methods such as the room temperature synthesis (RTS), conventional heating synthesis (CCS) and ultrasound-assisted synthesis...

Relación entre células sanguíneas y variables metabólicas en mujeres indígenas de diferentes edades que viven a gran altitud

Some studies have found a positive relationship between the concentration of blood cells and metabolic alterations, suggesting that the concentration of blood cells should be included as a component of metabolic syndrome. However, these studies have been done at a low altitude, and it is unknown if this relationship is maintained at a high altitude, where the low atmospheric...

Efecto desorbedor del metanol en la membrana celular

The interaction of ethanol on the cellular membrane inhibits the interaction with membrane proteins or cellular receptors. Ethanol and other small alcohols are natural surfactants of aqueous/organic interfaces, and also affect the cellular membrane stressing it mechanically, and inhibit the natural adsorption of terminal groups at the aqueous/organic interface. In this work we...

El estudio del polen antiguo: problemas y estrategias en el laboratorio

In the Paleoethnobotanical and Paleoenvironmental Laboratory of the Institute of Anthropological Research, a study of botanical remains recovered from archaeological excavations, conducted mainly by UNAM researchers and other institutions, is being carried out. Seeds, charcoal and ancient pollen are found among the main botanical remains. Through experience, it has been shown...