Search results for "amina"
showing 10 items of 2711 documents
Hepatitis A infections from food.
2020
Food contaminated by hepatitis A virus (HAV) is responsible of the 2–7% of all HAV outbreaks worldwide. This review provides a description of the HAV characteristics, its infectivity and epidemiological features. In addition, this review compiles existing original papers reporting HAV prevalence, viral titres in foodstuffs and the risk associated with food contamination. The purpose of this revision is to conduct a structured and systematic review of the published molecular procedures for HAV detection in food, including the assessment of its infectivity.
Sintesis de isoquinoleinas dopaminérgicas y de indenopiridinas melatoninérgicas
2014
El primer capítulo de la presente Tesis Doctoral versa sobre la síntesis de isoquinoleinas, concretamente Bencil-Isoquinoleinas halogenadas. Con dicha síntesis se pretende valorar la afinidad existente con el receptor dopaminérgico. En la presente tesis se describe tanto la síntesis detallada de este tipo de moléculas como los ensayos realizados de afinidad por los receptores dopaminérgicos o ensayos de binding. Por otra parte, se describe de forma más somera la síntesis de Butil-Isoquinoleinas quirales que han sido sintetizadas por el departamento de Quimica Organica de esta Universidad con el objetivo de posteriormente y realizando ensayos de binding dopaminérgico, ver la afinidad existen…
Efectos de la modulación colinérgica y la administración de R-(+)-8-OH-DPAT sobre la evitación inhibitoria a lo largo del ciclo vital en ratones
2015
Las sustancias que actúan modulando los sistemas de neurotrasmisión colinérgico y serotoninérgico, como algunos antidepresivos, han demostrado en estudios previos un efecto deteriorante o facilitador en el aprendizaje y memoria de la tarea de evitación inhibitoria en roedores. Este trabajo tuvo como objetivo el investigar el papel que los sistemas de neurotrasmisión colinérgico y serotoninérgico a través de la administración de diferentes sustancias juegan en la consolidación del aprendizaje de evitación inhibitoria a lo largo de tres etapas del ciclo vital de ratones machos y hembras. Para ello se emplearon fármacos más específicos que interfieren en estos dos sistemas para analizar el efe…
Lapsensa surmanneiden ja sitä yrittäneiden äitien elämäntilanne sekä lapsuuden väkivaltakokemukset
1998
Inorganic Mercury Sequestration by a Poly(ethylene imine) Dendrimer in Aqueous Solution
2015
The interaction of the G-2 poly(ethylene imine) dendrimer L, derived from ammonia as initiating core, with Hg(II) and HgCl4 2− was studied in aqueous solution by means of potentiometric (pH-metric) measurements. Speciation of these complex systems showed that L is able to form a wide variety of complexes including 1:1, 2:1, 3:1 and 3:2 metal-to-ligand species, of different protonation states, as well as the anion complexes ((H7L)HgCl4) 5+ and ((H8L)HgCl4) 6+ . The stability of the metal complexes is very high, making L an excellent sequestering agent for Hg(II), over a large pH range, and a promising ligand for the preparation of functionalized activated carbons to be employed in the remedi…
Longitudinal metagenomics
2018
Culture-independent approaches are revolutionizing biology. Whether in a clinical or in an environmental sample, metagenomics can reveal which microorganisms exist and what they actually do. Metagenomic studies have unveiled more microbial diversity in a few years than traditional microbiology in centuries. From the top branches down to the roots, its discoveries are reshaping the tree of life dramatically. Metagenomics is a powerful tool for the study of microbial communities, but it requires equally powerful methods of analysis. Current challenges in the analysis of metagenomic data include the accurate comparison of samples, the estimation of the uncertainty in the results, and the effec…
Formation of microbial organic carbonates during the Late Jurassic from the Northern Tethys (Amu Darya Basin, Uzbekistan): implications for Jurassic …
2020
23 pages; International audience; The Late Jurassic was a period of major global carbon cycle perturbations with episodes of anoxia leading to regional accumulation of organic matter in sediments worldwide. The Tubiegatan section (SW Gissar Mountains, Uzbekistan) located in the Northern Tethys, shows atypical organic-rich limestone and marl deposits (up to 6% of total organic carbon) marked by pronounced negative excursions of δ13Ccarb (amplitude of ca. 12‰) and δ13Corg (amplitude of ca. 4‰) recorded during the Middle Oxfordian (Transversarium Zone). A transdisciplinary approach including sedimentology, palynofacies characterization, mineralogy, organic and inorganic geochemistry was carrie…
Tuberculosis among Migrant Populations in Sicily: A Field Report
2021
Background. In the EU, tuberculosis (TB) mainly affects vulnerable people, including migrants. From 2014 to 2017, we have estimated the frequency of both tuberculosis and latent tuberculosis infection (LTBI) among the migrant population hosted in 41 reception centers in western Sicily (ITaCA network). Materials and Methods. All migrants were consecutively recruited for the screening of TB infection with physical examination and TST in 1,020 migrants and with IGRA in the others 2,690. The screening was carried out 4–8 weeks after landing in Sicily. For all migrants with a positive screening test, chest X-ray and smear examination were performed. LTBI was defined by positivity of TST or IGRA …
Understanding the effect of Vitamin D treatment on human uterine leiomyoma growth using in vitro and in vivo models
2019
Los miomas uterinos afectan al 70% de las mujeres en edad reproductiva, empeorando la calidad de vida de muchas de ellas debido a sus síntomas asociados. A pesar de su alta prevalencia no existe ninguna terapia efectiva para reducir el tamaño de éstos mínimamente invasiva y sin efectos secundarios. Aunque la patogénesis de los miomas no se conoce completamente, la correlación entre el déficit de Vitamina D (Vit D) y el riesgo de miomas uterinos, junto sus efectos antiproliferativos descritos en cáncer, apuntaron a la Vit D como una posible opción terapéutica para tratar los miomas uterinos. En este sentido, la acción de la Vit D ha sido ampliamente estudiada en cáncer, demostrando que su ac…
Ylioppilastutkinnon, tavoiteorientaatioiden ja muiden motivaatiotekijöiden yhteys luokanopettajakoulutukseen hakeneiden menestymiseen VAKAVA-valintak…
2019
Tässä tutkimuksessa selvitettiin ylioppilastutkinnon yleisarvosanan, tavoiteorientaatioiden ja muiden motivaatiotekijöiden yhteyttä menestymiseen valtakunnallisessa kasvatusalan valintayhteistyöverkoston toteuttamassa opiskelijavalintakokeessa (VAKAVA). Tutkimukseen osallistuivat Jyväskylän yliopiston luokanopettajakoulutukseen pyrkineet hakijat vuosina 2014 ja 2015 (n = 399). Tutkimusaineisto koostui VAKAVAkoepistemääristä sekä hakijoiden itsearvioinneista, jotka liittyivät erilaisiin tavoiteorientaatioihin (oppimis-, saavutus-, suoritus-lähestymis-, suoritus-välttämis- ja välttämisorientaatio) sekä muihin motivaatiotekijöihin (kokemus opiskelun mielekkyydestä, luovutusherkkyys ja epäonnis…