Search results for "NAD"
showing 10 items of 2033 documents
Calidad, Validación de métodos, Control de calidad, Incertidumbre, Acreditación de laboratorios
2010
Describir e ilustrar con un ejemplo el procedimiento a seguir para armonizar tres procesos internos de calidad, relacionados con un método de análisis, en el laboratorio de ensayo, LE: Validación de la exactitud, Control de calidad y Expresión de la incertidumbre. Además, la Guía se ha diseñado para que el usuario (estudiante o profesional) alcance competencias y cualificación suficiente para ejecutar correctamente un documento del sistema de calidad del LE y poder cumplimentar un registro de validación de manera conforme. Finalmente, la Guía (en sí misma, junto al resto de documentos que la componen) pretende servir de orientación didáctica al usuario sobre algunos aspectos clave de un sis…
Oxygen isotope composition of North American bobcat (Lynx rufus) and puma (Puma concolor) bone phosphate: implications for provenance and climate rec…
2015
Feline carnivores are threatened by illegal wildlife trade. Tracing the provenance of unknown felid tissues via stable isotope analysis could provide important information in wildlife crime investigations. The oxygen isotope composition of mammalian skeletal phosphate (δ(18)Op) is widely applied to trace the origin of animal remains and to reconstruct migratory patterns in palaeontological, archaeological, ecological and wildlife forensic applications. Teeth and bones of terrestrial mammals form at constant body temperature in isotope equilibrium with body water, which is predominantly controlled by ingested meteoric water (δ(18)Ow) that varies systematically with latitude, altitude and cli…
Par emigrācijas (no Liepājas uz Kanādu) demogrāfisko ietekmi laika posmā no 1906. līdz 1914. gadam
2021
Darbā tiek apskatīta emigrācijas plūsma no Krievijas Impērijas uz Kanādu caur Libau (mūsdienās – Liepāju) ostu laika posmā no 1906. – 1914. gadam, kad starp Libau un Ziemeļameriku bija tieša jūras ceļu satiksme. Pētījuma pamatā ir oriģinālie kuģniecības manifesti, kas tiek salīdzināti un pretstatīti akadēmiskajiem pētījumiem par dažādām emigrantu grupām Kanādā. Pieejamie dati par galvenajām etniskajām grupām astoņu gadu posmā tiek salīdzināti, pretstatīti un papildināti ar aptaujāto emigrantu, kas emigrējuši no Krievijas Impērijas uz Kanādu šajā laika posmā, pēcteču teikto un Libau ostas apstākļu analīzi šīs emigrācijas laikā, kas balstīta šī laika krievu, britu, amerikāņu, ebreju un latvie…
Flow cytometry diagnosis in myelodysplastic syndrome: Current practice in Latin America and comparison with other regions of the world
2019
Background: Flow cytometry (FC) is a valuable tool for the diagnosis of myelodysplastic syndromes (MDS). We present results of a survey carried out to evaluate FC current practice for MDS diagnosis in Latin America (LA), focusing on markers used and characteristics of the clinical diagnostic report. Compliance to IMDSflow recommendations was also evaluated. These practices were then compared with those used in other countries. Methods: An online survey was sent through the Grupo Latino-Americano de Mielodisplasia to LA cytometrists and other international scientific societies. Results: 91 responses from 15 LA countries were received. The median of the number of markers used was 20 +/- 4.5, …
Cytotoxicity of medicinal plants of the West-Canadian Gwich׳in Native Americans towards sensitive and multidrug-resistant cancer cells
2015
Abstract Ethnopharmacological relevance Traditional medicine of the Native Americans has a long tradition of medicinal plants, which also influenced modern oncology. For instance, podophyllotoxin the active ingredient of Podophyllum peltatum L. (Berberidaceae) used by Native Americans to treat warts led to the development of etoposide and teniposide. In the present investigation, we studied 10 medicinal plants used by the Gwich׳in First Nation of West-Canada, which have been used against diverse diseases including cancer. Material and methods Sensitive and multidrug-resistant (MDR) tumor cell lines expressing various ATP-binding cassette (ABC) transporters (P-glycoprotein/ ABCB1/MDR1 , MRP1…
Démocratisation de l'enseignement supérieur et emprise des parcours
2014
This article looks at how the organization of the education system and the pathways leading to higher education enable social mobility or on the contrary the reproduction of inequalities. We thus compare three countries: France, Switzerland, and Canada. The results using panel data in these three countries show two different situations. The more higher education is valued rather than vocational training, the more inequalities tend to increase. The competition is such that it is the youth with a privileged social background who benefit more from its expansion. On the other hand, when the vocational education and training is more valued, inequalities in higher education could tend to be more …
Localization of quantitative trait loci for diapause and other photoperiodically regulated life history traits important in adaptation to seasonally …
2015
Seasonally changing environments at high latitudes present great challenges for the reproduction and survival of insects, and photoperiodic cues play an important role in helping them to synchronize their life cycle with prevalent and forthcoming conditions. We have mapped quantitative trait loci (QTL) responsible for the photoperiodic regulation of four life history traits, female reproductive diapause, cold tolerance, egg-to-eclosion development time and juvenile body weight in Drosophila montana strains from different latitudes in Canada and Finland. The F2 progeny of the cross was reared under a single photoperiod (LD cycle 16:8), which the flies from the Canadian population interpret a…
Les inégalités d’accès à l’enseignement supérieur des jeunes: Analyse comparative de trois systèmes éducatifs : Suisse, Canada et France
2017
Mapping regional cultural policies in Canada
2022
Qui suis-je : Discontinuity as part of teacher identity in Canadian French immersion
2020
The scarcity of research on French immersion teachers’ professional identity contrasts with the increasing popularity of French immersion programs in Canada and the concomitant need for French immersion teachers. This study explores the professional identity negotiation of four French immersion teachers in Alberta, Canada, with a focus on discontinuity. Semi-structured interviews conducted face-to-face with the participants were analysed using dialogic narrative analysis. The findings highlight how discontinuity is occasioned by a change in knowledge about the French immersion teaching as a profession, encountering classroom realities, shifting one’s values concerning second language learni…