Paleomagnetism and rock magnetism of the Neoproterozoic Itajaí Basin of the Rio de la Plata craton (Brazil): Cambrian to Cretaceous widespread remagnetizations of South America

2011 ◽  
Vol 20 (4) ◽  
pp. 782-797 ◽  
Author(s):  
E. Font ◽  
C.F. Ponte Neto ◽  
M. Ernesto
Keyword(s):  
South America ◽  
Rock Magnetism ◽  
Rio De La Plata ◽  
Río De La Plata ◽  
La Plata

Poe and His Global Advocates

2018 ◽  
pp. 596-617
Author(s):  
Emron Esplin
Keyword(s):  
Twentieth Century ◽  
South America ◽  
Rio De La Plata ◽  
Río De La Plata ◽  
Literary Traditions ◽  
La Plata ◽  
Original Works ◽  
Definition Of ◽  
Global Reputation

This essay explores Edgar Allan Poe’s extraordinary relationships with various literary traditions across the globe, posits that Poe is the most influential US writer on the global literary scene, and argues that Poe’s current global reputation relies at least as much on the radiance of the work of Poe’s literary advocates—many of whom are literary stars in their own right—as it does on the brilliance of Poe’s original works. The article briefly examines Poe’s most famous French advocates (Baudelaire, Mallarmé, Valéry); glosses the work of his advocates throughout Europe, Asia, and the Americas; and offers a concise case study of Poe’s influence on and advocacy from three twentieth-century writers from the Río de la Plata region of South America (Quiroga, Borges, and Cortázar). The essay concludes by reading the relationships between Poe and his advocates through the ancient definition of astral or stellar influence.

scholarly journals Histology and gametogenesis inHeleobia piscium(Cochliopidae) from the Multiple Use Reserve “Isla Martín García,” Buenos Aires, Argentina

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2548 ◽  
Author(s):  
Stella Maris Martin ◽  
Ana C. Díaz
Keyword(s):  
South America ◽  
Reproductive Cycle ◽  
Buenos Aires ◽  
Rio De La Plata ◽  
Multiple Use ◽  
Río De La Plata ◽  
Early Maturation ◽  
La Plata ◽  
Natural Reserve ◽  
Entre Rios

Heleobia piscium(d’Orbigny, 1835), a member of the Cochliopidae family found only in South America, is distributed from Entre Ríos, Delta del Paraná, and the littoral of the Río de la Plata down as far as to Punta Indio (Buenos Aires), the southernmost limit of the snail’s geographical distribution. To date, little information is available regarding the reproductive cycle of species within this family either in Argentina or throughout South America. The present work analyzed the histology of the reproductive system of the gonochoric speciesH. pisciumand determined the stages oogenesis and spermatogenesis under natural conditions. Specimens ofH. pisciumwere collected in the Multiple-Use Natural Reserve Isla Martín García, located in the Upper Río de la Plata estuary to the south of the mouth of the Uruguay River. The gametogenic cycle in both sexes was found to consist of the following stages: early maturation, maturation, and evacuation. The maturation period was found to extend from January to October and evacuation of the gametes to start in November and end in February (summer in the Southern Hemisphere). The results indicated theH. pisciumexhibit a reproductive cycle without a resting period.

Sign in / Sign up

Export Citation Format

Share Document