Paralarvas y juveniles de Octopus bimaculatus (Cephalopoda: Octopodidae) en el Pacífico sur de México

Experiencias de envejecimiento en el México rural

Objective. To explore the aging experience among men and women older than 60 years, living in rural areas from the states of Guerrero and Morelos, Mexico. Materials and Methods. A qualitative study was conducted in povertystricken, underserved communities with less than 2 500 inhabitants. Semi-structured interviews were applied to collect data. Results. The aging experience is different accordi...

Fulgor y Ocaso de CEUNS. Una apuesta a la tecnología nacional en el Sur de Argentina

Between 1961 and 1965 a group of investigators of the National Universityof the South (UNS), in the city of Bahía Blanca, Argentina, assumed the challenge of designing and building a computer. The Project that began in a favorable context had to be abandoned because of the material penuries. While the southern group fought against the difficulties, the technology of construction of computers su...

Sur la frequence de leptospirose en Iran

Sur la fréquence de leptospirose en Iran

Octopus tetricus (Mollusca: Cephalopoda) as an ecosystem engineer ; Octopus tetricus (Mollusca: Cephalopoda) como ingeniero de ecosistemas

The Sydney octopus (Octopus tetricus) occurs in unusual numbers on a shell bed of its prey remains that have accumulated as an extended midden where additional octopuses excavate dens. Here, O tetricus are ecosystem engineers, organisms that modulate availability of resources to other species and to their own species by causing physical state changes in materials. A community of invertebrate gr...