Universitat de Barcelona
Now showing items 1769-1788 of 11028
The four main chapters in this dissertation, while each largely self-standing, can be seen as together providing an extended defence of the view that classical mereology is analytically true. In chapter 1, I criticise Eli ...
Xenopus laevis oocytes are transcriptionally silent cells that require hormone stimulation for maturing into fecundation-competent eggs. Meiosis resumption underlying oocyte maturation is governed by sequential waves of ...
Ni-bearing Mg-phyllosilicates (commonly known as garnierites) are significant ore minerals in many Ni-laterite deposits worldwide. However, the characterisation of these mineral phases is complex, as well as their ...
The main objective of this thesis focuses on compositional design and engineering colloidal NPs and their application in energy conversion. This principally included the synthesis and characterization of colloidal NPs, and ...
Amb l’objectiu d’obtenir materials moleculars amb una o més propietats físiques tals com magnètiques, luminescents i/o quirals en aquest treball s’han obtingut nous compostos de coordinació basats en metalls de transició, ...
La presència d'acoblament espín-òrbita en els ions lantànids genera anisotropia magnètica que pot donar lloc a propietats magnètiques interessants, així doncs l'objectiu principal d'aquest treball és la síntesi, caracterització ...
En el treball descrit en aquesta Memòria s'han preparat, caracteritzat estructuralment i estudiat des d'un punt de vista magnètic diferents sistemes de base molecular mixtos d'ions del bloc <i>f</i> i <i>d</i> emprant en ...
La Tesi tracta sobre la preparació i l’ús en catàlisi homogènia asimètrica de lligands fosforats quirals amb àtoms de fòsfor estereogènics. En primer lloc es descriu la preparació i caracterització de lligands monofosforats ...
La Tesi versa sobre l'ús en catàlisi asimètrica de lligands fosforats quirals -monodentats i bidentats- amb àtoms de fòsfor estereogènics. En la primera part es discuteix la preparació dels lligands de forma òpticament ...
La Directiva de la Unió Europea 2013/39/UE, que modifica la Directiva Marc de l’Aigua (Directiva 2000/60/CE) i la Directiva 2008/105/CE, inclou un total de 45 substàncies prioritàries que cal regular. L’any 2015 es va ...
El treball que es presenta es basa en la síntesi i estudi estructural i magnètic de compostos polinuclears de coure i manganès amb lligands de tipus oxima. L’objectiu dels compostos de coure és l’estudi magnètic a baixa ...
Els organismes aerobis, com a subproducte del metabolisme, produeixen espècies reduïdes d'oxigen (ROS) de manera incompleta com: el radical superòxid (01, el peròxid d'hidrogen (H202) o el radical hidroxil (*OH), entre ...
Compound F has been reported to possess important antioxidant, anti-inflammatory, anti- diabetic and anti-cancer effects, among other interesting properties. Although Compound F has been extensively investigated, its ...
Chloroform (CF), tetrachloroethene (PCE) and trichloroethene (TCE) are dense chloro-aliphatic hydrocarbons (CAH) extensively used as industrial solvents. These compounds have been largely released to the environment due ...
Reference is a phenomenon both fundamental to communication and inherent to every act of language use. Autism spectrum conditions (ASC) are marked by problems of both communication and language. This thesis presents three ...
Understanding questions is key for successful communication. Although deficits in communication are the hallmark of Autism Spectrum Conditions (ASC), how both yes/no-questions and wh-questions are understood by children ...
[eng] Rett syndrome (RTT) is a severe neurodevelopmental disorder characterized by a regression in acquired skills, such as purposeful hand use and language, after an apparently normal early development. RTT affects ...
The discovery of new biotechnological applications of hydroxy fatty acids such as the oxylipins, has provided the basisto explore new mechanisms of oxylipin biosynthesis in prokaryotes, as no evidence on the occurrence of ...
In the past two decades we witnessed a decrease in both the number of oil spill incidents, and of the quantity of oil released in these incidents, which led to a diminished interest for basic oil spill science. With the ...
Quality control of herbals has its roots in the study of morphoanatomic and organoleptic characters. Nevertheless, in the last century, with the evolution of analytical chemistry, the quality control rapidly evolved from ...
