Search results for "Fab"
showing 10 items of 1201 documents
Lielvaru cīņa par ietekmi Livonijā Dionīsija Fabrīcija “Livonijas vēstures” atspoguļojumā
2019
Bakalaura darbs “Lielvaru cīņa par ietekmi Livonijā Dionīsija Fabrīcija “Livonijas vēstures” atspoguļojumā” pēta 17.gs. sākuma vēstures avotu, pievēršas Dionīsija Fabrīcija piedāvātajām Baltijas jūras reģiona lielvaru – Polijas – Lietuvas, Zviedrijas, Krievijas, Dānijas – interešu un darbību attēlojumam. Bakalaura darba mērķis ir konstatēt Dionīsija Fabrīcija attieksmi pret dažādām Livonijas politikā iesaistītajām lielvarām un izvērtēt viņa piedāvāto vēstures norišu skaidrojumu. Rezultātā noskaidrots, ka Fabrīcija attieksmē pret lielvarām ieceļas Polija kā taisnīguma aizstāve, kas Livonijā cīnās par miera nodrošināšanu. Tai pretstatā pārējās varas, īpaši, Zviedrija, tiek tēlotas kā miera ja…
Personas mayores usuarias habituales de tecnologia de la información y la comunicacion: análisis del perfil
2015
Las Tecnologías de Comunicación e Información (TICs) son instrumentos básicos de participación social a lo largo del ciclo vital. Las personas mayores son una de las cohortes con mayor riesgo de exclusión social por la llamada brecha digital, pero cada vez más personas son usuarias habituales de estas tecnologías, mostrando características diferenciadoras de los perfiles más tradicionales de personas mayores. La presente investigación ha tenido como objetivo principal analizar las características que definen el perfil de personas mayores usuarias habituales de las TICs. Para ello ha sido necesario analizar el tipo de equipamiento que disponen, el uso y el nivel de importancia que le concede…
La enseñanza/aprendizaje de la energía en la educación tecnológica. Una ocasión privilegiada para el estudio de la situación de emergencia planetaria.
2007
Esta investigación surge de la confluencia de dos problemáticas relevantes:· La que plantea la enseñanza/aprendizaje de la energía, uno de los núcleos básicos en todo currículo de educación científica y uno de los campos más investigados, debido a las dificultades de aprendizaje detectadas. · La centrada en la atención de la educación a la actual situación de emergencia planetaria, atendiendo al llamamiento de Naciones Unidas para que toda la educación contribuya a formar una ciudadanía consciente de los problemas a los que la humanidad ha de hacer frente y preparada para la necesaria toma de decisiones.Más precisamente, nuestra investigación tiene, en su origen, un propósito de innovación:…
Microstructural characterization of a 3D-printed soil
2022
Transversal applications of 3D-printing (or Additive Manufacturing) have been recently implemented in the field of Geomechanics. In a 3D-printing process, the printed volume is obtained from successive layering of adjacent soil filaments. In this work, the fabric of an as-printed soil has been carried out by combining Mercury Intrusion Porosimetry (MIP) tests and Scanning Electron Microscope (SEM) observations, with the aim to highlight how the particle arrangements and the orientation and shape of pores are linked to the printing operation. The microstructural analyses showed that macropores are the result of the relative position of the filaments and their initial distortion in quasi-undr…
The emerging role of 3D printing in the fabrication of detection systems
2021
Abstract 3D printing is fast evolving as an additive manufacturing technique that has been adopted in (bio)analytical science because of the ample variety of materials and technologies currently available for highly affordable prototyping. This review focuses on the unique characteristics of 3D printing for manufacturing of optical and electrochemical detection systems, and sampling interfaces for analytical purposes using fused deposition modelling, vat polymerization (stereolithography and digital light processing) and photopolymer inkjet printing. The majority of works surveyed within the time span of mid-2018 to mid-2020 encompassed the fabrication of several components of the detection…
Effect of high temperature annealing (T > 1650 °C) on the morphological and electrical properties of p-type implanted 4H-SiC layers
2019
This work reports on the effect of high temperature annealing on the electrical properties of p-type implanted 4H-SiC. Ion implantations of Aluminum (Al) at different energies (30-200 keV) were carried out to achieve 300 nm thick acceptor box profiles with a concentration of about 10(20) at/cm(3). The implanted samples were annealed at high temperatures (1675-1825 degrees C). Morphological analyses of the annealed samples revealed only a slight increase of the surface roughness RMS up to 1775 degrees C, while this increase becomes more significant at 1825 degrees C (RMS = 1.2 nm). Room temperature Hall measurements resulted in a hole concentration in the range 0.65-1.34 x 10(18)/cm(3) and m…
Un cuento de robots : La hija cibernética de descartes
2021
French philosopher René Descartes is today valued as a forerunner of the studies of human mind, artificial intelligence and robotic systems. Throughout his work there are large references to automata and the possibility of artificial life, as well as an assessment of the differences between rational behavior of human beings and the purely mechanical of animals and automata. In addition to these references, there is a fable about the creation by the philosopher of an automaton that replicated his deceased daughter Francine, a story that is well known among the French and Anglo-Saxon specialists, but not so much in the Spanish ones, which is what settles this short work
Mājaustie apģērba audumi Latvijā 19. gs. pēdējā ceturksnī un 20.gs.
2002
Advisor: Alsupe, Aina ; Jansone, Aija
Clinical utility of HFABP in myocardial infarction
2018
Assessing chest pain patients presenting to the emergency area (EA) is still a clinical challenge, as acute myocardial infarction (AMI) diagnosis is not adjudicated in the majority of patients. New generation high sensitivity troponin assays (hs-cTn) still present some limitations, thus, novel biomarkers to early rule-in and rule- out myocardial infarction in chest pain patients presenting to the EA are sought after. Among all, heart- type fatty acid binding protein (h-FABP) has been largely investigated. Studies performed on HFABP in these patients present marked heterogeneity. However, it can be stated that HFABP is clearly not a reliable marker for AMI diagnosis, neither as a stand-alone…
Nitensidine A, a guanidine alkaloid from Pterogyne nitens, is a novel substrate for human ABC transporter ABCB1.
2014
The Pterogyne nitens (Fabaceae) tree, native to South America, has been found to produce guanidine alkaloids as well as bioactive flavonols such as kaempferol, quercetin, and rutin. In the present study, we examined the possibility of interaction between human ATP-binding cassette (ABC) transporter ABCB1 and four guanidine alkaloids isolated from P. nitens (i.e., galegine, nitensidine A, pterogynidine, and pterogynine) using human T cell lymphoblast-like leukemia cell line CCRF-CEM and its multi-drug resistant (MDR) counterpart CEM/ADR5000. In XTT assays, CEM/ADR5000 cells were resistant to the four guanidine alkaloids compared to CCRF-CEM cells, although the four guanidine alkaloids exhibi…