Search results for "ORAC"
showing 10 items of 1142 documents
Oratio S. P. N. Dominici in febribus dicenda.
Corren exemplars semblants amb diferent orla i disposició del text El full orlat Grav xil. enmarcat de "S. Domingo"
2-Deoxyecdysone is a circulating ecdysteroid in the beetle Zophobas atratus
1997
A qualitative analysis of ecdysteroids has been performed during the post-embryonic development of the tenebrionid beetle, Zophobas atratus, by high performance liquid chromatography (HPLC) combined with enzyme immunoassay (EIA) using two different antibodies. Three HPLC peaks were found to be immunoreactive, in hemolymph extracts of both sexes. Moreover, these peaks had ecdysteroid-like UV spectra, determined using a photodiode array detector. The use of two different HPLC systems (reverse and normal phases), in combination with two different EIA antibodies, allowed us to identify 20-hydroxyecdysone (20E) and ecdysone (E), as the two main ecdysteroids, but also suggested the presence of 2-…
Biosynthesis of ecdysones in isolated prothoracic glands and oenocytes of Tenebrio molitor in vitro.
1974
Abstract Isolated prothoracic glands from Tenebrio larvae synthesize in vitro α-ecdysone, but not β-ecdysone from 4-14C-cholesterol. Isolated abdominal oenocytes from the larvae synthesize mainly β-ecdysone, but only little α-ecdysone. When prothoracic glands and oenocytes are cultured together, the α-ecdysone derived from the prothoracic glands is oxidized by the oenocytes to β-ecdysone. The newly synthesized hormones are not stored in the cells, but are secreted into the medium if sufficient amounts of non-labelled hormones are present. If no unlabelled hormones are added to the culture medium, the newly formed hormones are converted to a large extent into polar conjugates.
Empreendedorismo, inovação e internacionalização: o papel moderador das instituições
2021
Abstract The favorable effects of innovation and internationalization on the development of the economies of countries have been prominent factors in multiple management studies. The objective of this document is to make a theoretical review of the studies contained in the ScienceDirect (Elsevier) and ResearchGate databases, to offer an integrating framework of those institutional factors in the countries that favor the positive spillover of these two strategic actions carried out by companies: innovation and internationalization. As a result, we observed that an institutional framework characterized by a simplification of bureaucratic administrative procedures to access the financial resou…
Introducción
1999
An Incremental Analysis of the Embryonic Development of the Tobacco Hornworm,Manduca sexta
1987
Summary A timetable of the embryonic development of Manduca sexta has been compiled to serve as a basis for physiological studies. Embryogenesis is complete within 117 hr at 24° C and was analyzed by examining specimens representing 20 stages, i.e. intervals of 5% of the total developmental time. Stage 0 denotes the newly deposited egg. Germ band formation, gastrulation, differentiation of tissues and organs, and blastokinesis are described in detail. By stage 1 (6 hr post-oviposition) the cellular blastoderm is evident and the presumptive serosal and embryonic cells are distinguishable. At stage 2 the germ band has separated from the blastoderm, and by stage 3 it has elongated enormously, …
IMPORTANCIA DE LA ENFERMERA ESCOLAR EN LA DETECCIÓN DE LA NEOPLASIA TESTICULAR
2011
En este artículo planteamos una revisión de la literatura en diferentes bases de datos (CINAHL, CUIDEN, MEDLINE) con el fin de valorar la importancia de la neoplasia testicular en la adolescencia y el papel fundamental del profesional de enfermería-, concretamente de la enfermera escolar, en la detección precoz de esta patología. Una vez analizado el tema y tras tomar conciencia de la importancia de enseñar prácticas de autoexploración testicular correctas, se ha concluido que la enfermera escolar no debe desarrollar únicamente una actividad asistencial, sino que entre sus funciones se debe contemplar la promoción de la salud y la prevención del cáncer testicular. Dentro del proceso educado…
La telecolaboración entre grupos heterogéneos en la clase de lengua extranjera
2014
[ES] En la enseñanza de lenguas extranjeras, numerosos profesores trabajan las competencias lingüísticas y comunicativas por medio de actividades que incluyen las TIC. Entre ellas, se encuentran los proyectos de telecolaboración por Internet, intercambios asincrónicos y sincrónicos, entre grupos de estudiantes pertenecientes a diferentes comunidades lingüísticas distantes geográficamente. Nuestro objetivo ha consistido en comprobar si un proyecto de telecolaboración sincrónico entre grupos heterogéneos de estudiantes, con distintos perfiles y niveles en lengua extranjera, es factible y si contribuye al desarrollo de las competencias comunicativas, intercuturales y tecnológicas.
EJB:n eri käyttötapojen tehokkuus tiedonsiirrossa tietokantaan käyttäen OC4J palvelinta
2002
Delayed chronic intracranial subdural hematoma complicating resection of a tanycytic thoracic ependymoma
2015
Background To demonstrate that the diagnosis of an intracranial subdural hematoma should be considered for patients presenting with acute or delayed symptoms of intracranial pathology following resection of a spinal tumor. Case description We present a case of a 57-year-old woman found to have a chronic subdural hematoma 1 month following resection of a thoracic extramedullary ependymoma. Evacuation of the hematoma through a burr hole relieved the presenting symptoms and signs. Resolution of the hematoma was confirmed with a computed tomography (CT) scan. Conclusion Headache and other symptoms not referable to spinal pathology should be regarded as a warning sign of an intracranial subdural…