Determinación de carbono en la biomasa aérea de Ceroxylon peruvianum en la cuenca del río Utcubamba

En la cuenca media del río Utcubamba existen diversas especies nativas, dentro de ellas la que mayor importancia ha demostrado es Ceroxylon peruvianum (pona), forma parte del componente leñoso en los sistemas de producción agropecuaria, ya sea en asociación no sistemática como sistemas agroforestales y sistemas silvopastoriles con componentes de especies arbóreas, pastos cultivados y mejorados y especies de ganado vacuno. El objetivo principal de la investigación fue la determinación de las reservas de carbono para la valoración de la especie así como la formulación de indicadores de sustentabilidad respecto a la retención del carbono en el suelo y en la planta

Tadeusz Peiper como traductor de la poesía ultraísta al polaco (1921-1922)

El poeta polaco Tadeusz Peiper (1891-1969) -uno de los principales animadores de la vanguardia literaria polaca y fundador del movimiento Awangarda Krakowska- fue el principal introductor de la poesía ultraísta en Polonia. Tras volver a su renacida nación en 1921 -había pasado en Madrid los años de la Gran Guerra- entró en contacto con la revista de los futuristas polacos Formisci y con el cuaderno de avanzada Nowa Sztuka, en los que publicó poemas de Vicente Huidobro y de varios poetas del Ultra, entre los que destacan algunos de los primeros versos de Jorge Luis Borges traducidos a una lengua extranjera. El presente artículo examina las traducciones de Peiper desde un punto de vista textual, pero sin perder de vista lo que pudieron suponer para la construcción de su propia propuesta: el movimiento Awangarda Krakowska. Presentamos en apéndice la primera traducción al español del artículo «Nowa poezjia hiszpanska» (Nowa Sztuka, febrero 1922) -que recoge la interpretación peiperiana del Ultra madrileño- y los textos originales y traducidos al polaco de la antología de poesía ultraísta a la que servía de introducción.The Polish poet Tadeusz Peiper (1891-1969) -one of the leading figures of the Polish literary avant-garde and founder of the Awangarda Krakowska movement- was chiefly responsible for introducing Ultraist poetry into Poland. After returning to his reborn nation in 1921 (he had spent the First World War years in Madrid), he came into contact with the Polish Futurist magazine Formisci and the avant-garde journal Nowa Sztuka, in which he published poems by Vicente Huidobro and several Ultra poets, notably including some of the first poems by Jorge Luis Borges to be translated into a foreign language. The present article examines Peiper's translations from a textual point of view, without losing sight of their importance for the construction of his own contribution: the Awangarda Krakowska movement. In the appendix we present the first translation into Spanish of the article "Nowa poezjia hiszpanska" (Nowa Sztuka, February 1922), in which Peiper outlined his interpretation of the Madrid Ultra, as well as the original texts and their translation into Polish of the anthology of Ultraist poetry which it accompanied by way of introduction

Tadeus Peiper como traductor de la poesía ultraísta al polaco (1921-1922)

El poeta polaco Tadeusz Peiper (1891-1969) –uno de los principales animadores de la vanguardia literaria polaca y fundador del movimiento Awangarda Krakowska– fue el principal introductor de la poesía ultraísta en Polonia. Tras volver a su renacida nación en 1921 –había pasado en Madrid los años de la Gran Guerra– entró en contacto con la revista de los futuristas polacos Formisci y con el cuaderno de avanzada Nowa Sztuka, en los que publicó poemas de Vicente Huidobro y de varios poetas del Ultra, entre los que destacan algunos de los primeros versos de Jorge Luis Borges traducidos a una lengua extranjera. El presente artículo examina las traducciones de Peiper desde un punto de vista textual, pero sin perder de vista lo que pudieron suponer para la construcción de su propia propuesta: el movimiento Awangarda Krakowska. Presentamos en apéndice la primera traducción al español del artículo «Nowa poezjia hiszpanska» (Nowa Sztuka, febrero 1922) –que recoge la interpretación peiperiana del Ultra madrileño– y los textos originales y traducidos al polaco de la antología de poesía ultraísta a la que servía de introducción.The Polish poet Tadeusz Peiper (1891-1969) –one of the leading figures of the Polish literary avant-garde and founder of the Awangarda Krakowska movement– was chiefly responsible for introducing Ultraist poetry into Poland. After returning to his reborn nation in 1921 (he had spent the First World War years in Madrid), he came into contact with the Polish Futurist magazine Formisci and the avant-garde journal Nowa Sztuka, in which he published poems by Vicente Huidobro and several Ultra poets, notably including some of the first poems by Jorge Luis Borges to be translated into a foreign language. The present article examines Peiper’s translations from a textual point of view, without losing sight of their importance for the construction of his own contribution: the Awangarda Krakowska movement. In the appendix we present the first translation into Spanish of the article “Nowa poezjia hiszpanska” (Nowa Sztuka, February 1922), in which Peiper outlined his interpretation of the Madrid Ultra, as well as the original texts and their translation into Polish of the anthology of Ultraist poetry which it accompanied by way of introduction

Fault-tolerant onboard digital information switching and routing for communications satellites

The NASA Lewis Research Center is developing an information-switching processor for future meshed very-small-aperture terminal (VSAT) communications satellites. The information-switching processor will switch and route baseband user data onboard the VSAT satellite to connect thousands of Earth terminals. Fault tolerance is a critical issue in developing information-switching processor circuitry that will provide and maintain reliable communications services. In parallel with the conceptual development of the meshed VSAT satellite network architecture, NASA designed and built a simple test bed for developing and demonstrating baseband switch architectures and fault-tolerance techniques. The meshed VSAT architecture and the switching demonstration test bed are described, and the initial switching architecture and the fault-tolerance techniques that were developed and tested are discussed

Morphological changes, beach inundation and overwash caused by an extreme storm on a low-lying embayed beach bounded by a dune system (NW Mediterranean)

The geomorphological evolution of a low-lying, micro-tidal sandy beach in the western Mediterranean, Pals beach, was characterized using airborne Light Detection and Ranging (LiDAR) data. Data were collected in prior to and six months after the impact of an extreme storm with a return period of approx. 50 years, with the aim of characterizing the beach's response to the storm. The use of repeated high-resolution topographic data to quantify beach geomorphic changes has allowed assessment of the accuracy of different proxies for estimating beach volume changes. Results revealed that changes in the shoreline position cannot accurately reproduce beach volume changes on low-lying beaches where overwash processes are significant. Observations also suggested that volume estimations from beach profiles do not accurately represent subaerial volume changes at large profile distances on beaches with significant alongshore geomorphological variability. Accordingly, the segmentation of the beach into regularly spaced bins is proposed to assess alongshore variations in the beach volume with the accuracy of the topographic data. The morphological evolution of Pals beach during the study period showed a net shoreline retreat (- 4 m) and a significant sediment gain on the subaerial beach (+ 7.5 m3/m). The net gain of sediment is mostly due to the impact of the extreme storm, driving significant overwash processes that transport sediment landwards, increasing volume on the backshore and dunes. The increase of volume on the foreshore and the presence of cuspate morphologies along the shoreline also evidence post-storm beach recovery. Observed morphological changes exhibit a high variability along the beach related to variations in beach morphology. Changes in the morphology and migration of megacusps result in a high variability in the shoreline position and foreshore volume changes. On the other hand, larger morphological changes on the backshore and larger inundation distances occur when the beach and the dunes are lower, favouring the dominance of overwash. The observed storm-induced morphological changes differ from predicted beach storm impacts because of spatial and temporal variations in the beach morphology, suggesting that detailed morphological parameters and indicators used for predicting beach vulnerability to storms should be regularly updated in order to represent the pre-storm beach conditions. Finally, observed morphological changes in Pals Bay evidenced a different behaviour between natural and urban areas, with better post-storm beach recovery on natural areas where the beach is not artificially narrowed.Peer ReviewedPostprint (author's final draft

Fraude tropical

Gonzalo Ariza. Ana María Escallón. Eduardo Carranza. Germán Arciniegas, Lionel Landry, Susana de Ariza, Hernando Téllez, Enrique Caballero (textos); Óscar Monsalve (reproducciones fotográficas) Villegas Editores. Bogotá, 1989, 239 págs

Serrano Rueda por la sabana

Roberto Páramo: paisaje, bodegón, ciudad. Eduardo Serrano Rueda. (Investigación y supervisión: Carmen María Jaramillo). Museo de Arte Moderno de Bogotá-Novus Ediciones, Bogotá, 1989, 190 págs

Description and Simulation of a Fast Packet Switch Architecture for Communication Satellites

The NASA Lewis Research Center has been developing the architecture for a multichannel communications signal processing satellite (MCSPS) as part of a flexible, low-cost meshed-VSAT (very small aperture terminal) network. The MCSPS architecture is based on a multifrequency, time-division-multiple-access (MF-TDMA) uplink and a time-division multiplex (TDM) downlink. There are eight uplink MF-TDMA beams, and eight downlink TDM beams, with eight downlink dwells per beam. The information-switching processor, which decodes, stores, and transmits each packet of user data to the appropriate downlink dwell onboard the satellite, has been fully described by using VHSIC (Very High Speed Integrated-Circuit) Hardware Description Language (VHDL). This VHDL code, which was developed in-house to simulate the information switching processor, showed that the architecture is both feasible and viable. This paper describes a shared-memory-per-beam architecture, its VHDL implementation, and the simulation efforts

As The Sun Sets, We Remain: A Bioarchaeological Analysis of the Gause Cemetery at Seaside

In 2014, USA Today reported that the search for family roots was the second most popular hobby in the U.S.. The concomitant recognition by the general public of the forensic and bioarchaeological value of human skeletal remains has, in a few cases, proffered osteological analysis as another form of genealogical research. This study focuses on the excavation of a small cemetery of a politically and economically prominent family in Sunset Beach, NC at the request of a descendant. The osteobiographical approach utilized here provides a detailed, contextualized study of the physical remains to complement other historical data on the family. Three brick burial vaults were excavated in 2017, recovering the skeletal remains of three potential adult ancestors of the descendant. The adult female (25-34 years old) and two adult males (25-25 years old and 30-39 years old) have paleopathology profiles expected of free landowners in the antebellum Southeastern U.S. based on comparative samples, with almost no lesions indicative of infectious diseases and malnutrition but with poor dental health. In addition, material remains and burial contexts suggest internment the late 18th to early 19th centuries. Survey also indicated the original cemetery bounds stretch beyond its modern limits, intruded upon by modernization. The detailed osteobiographies presented in this study reflect the benefits and limitations of these data for genealogical research and addresses the ethical issues tied to descendant-initiated excavation of cemeteries