Evaluation of the Olympus AU-510 analyser

The selective multitest Olympus AU-510 analyser was evaluated according to the recommendations of the Comision de Instrumentacion de la Sociedad Española de Quimica Clinica and the European Committee for Clinical Laboratory Standards. The evaluation was carried out in two stages: an examination of the analytical units and then an evaluation in routine work conditions. The operational characteristics of the system were also studied

Very accurate computation of the impedance elements on the discretization of the magnetic field integral equation with the orthogonal basis functions

We show a novel integrating technique, the direct evaluation method, that provides maximum accuracy in the computation of the MFIE-interactions between neighboring noncoplanar basis functions sharing an edge or a vertex of the discretization. Unlike the previous techniques, this strategy requires no extraction of quasi-singular terms from the Kernel and accounts for both inner- and outer-integrals. We show that the recently proposed discretization of the MFIE with orthogonal facet-oriented basis functions provide best accuracy in the RCS computation of objects with small electrical dimensions when compared with other conventional basis functions sets.Peer ReviewedPostprint (published version

Amaranthus palmeri a New Invasive Weed in Spain with Herbicide Resistant Biotypes

Amaranthus palmeri is the most prominent invasive weed in agricultural land from North America, partly due to its propensity to evolve resistance to multiple herbicide sites of action. In the last two decades, reports of this species have increased throughout the American continent and occasionally in other continents. In 2007, A. palmeri populations were found in three localities in northeastern Spain, and they are still present today. To determine whether these three populations resulted from a common or independent introduction events¿and when and from where they could have occurred¿research was carried out aiming to characterize the resistance profile and mechanisms to 5-enolpyruvylshikimate-3-phosphate synthase-and acetolactate synthase (ALS)-inhibiting herbicides and to analyze the relationship between these three populations using inter simple sequence repeat DNA fingerprinting. Dose-response trials confirmed that the three populations were susceptible to glyphosate but resistant to nicosulfuron-methyl. Resistance to ALS inhibitors was due to several amino acid substitutions in positions Pro197, Trp574 and Ser653. Moreover, the substitutions Ser653Ile and Pro197Thr are described for the first time in this species. At field-labeled rates, all populations were fully controlled with alternative herbicides with other sites of action. Amaranthus palmeri individuals were clustered in three groups based on unweighted pair group method with arithmetic mean analysis, which corresponded to the three sampled populations, with a 67% of genetic relationship among them. Considering this high genetic variability and the different positions and amino acid substations found between populations, it was hypothesized that different colonization events occurred from the American continent probably prior to the introduction of glyphosate resistant crops. Prevention from new introductions is warranted because new herbicide resistance traits could arrive, complicating the management of this invasive weed species, while managing or eradicating the already established populations.This work was funded by Spanish Government through the project AGL2017-83325-C4-2-R (AEI/FEDER/UE). Joel Torra acknowledges support from the Spanish Ministry of Science, Innovation and Universities (grant Ramon y Cajal RYC2018-023866-I)

School of Public Accounting. Volume 14 No. 18 December 1995

Las Facultades de Contaduría Pública participan de esa preocupación y es por eso que ASFACOP (Asociación Colombiana de Facultades de Contaduría Pública) está orientando una importante reflexión sobre el particular. La UNAB también ha estado vinculada, de manera activa, a este proceso sin los afanes de una acreditación: por la acreditación en sí misma. Más bien ha entendido ello como parte de su Proceso Educativo, en el que las Reformas Curriculares de las distintas facultades ha cobrado importante protagonismo.The Schools of Public Accounting participate in this concern and that is why ASFACOP (Colombian Association of Schools of Public Accounting) is guiding an important reflection on the matter. UNAB has also been actively linked to this process without the desire of accreditation: for the accreditation itself. Rather, it has understood this as part of its Educational Process, in which the Curricular Reforms of the different faculties have gained an important role

Guía de gestión integrada de plagas: aguacate

Coordinadores: Ángel Martín Gil y Gregoria Aranda Aranda