DSpace Collection:http://hdl.handle.net/10261/9312024-03-28T19:16:26Z2024-03-28T19:16:26ZReactivity and Applications of Singlet Oxygen MoleculeCurieses Andrés, Celia MaríaPérez de Lastra, José ManuelAndrés Juan, CeliaPlou Gasca, Francisco JoséPérez-Lebeña, Eduardohttp://hdl.handle.net/10261/3487862024-03-01T03:55:04Z2024-02-29T11:51:17ZTítulo: Reactivity and Applications of Singlet Oxygen Molecule
Autor: Curieses Andrés, Celia María; Pérez de Lastra, José Manuel; Andrés Juan, Celia; Plou Gasca, Francisco José; Pérez-Lebeña, Eduardo
Resumen: Reactive oxygen species (ROS) are molecules produced in living organisms, in the environment, and in various chemical reactions. The main species include, among others, singlet oxygen (1O2), the superoxide anion radical (•O2 ), the hydroxyl radical (HO•), and the hydroperoxyl radical (HOO•). In general, the reactivity of 1O2 is lower than that of HO• but even higher than that of •O2 . Singlet oxygen is the lowest energy excited state of molecular oxygen, but it is also a highly reactive species, which can initiate oxidation reactions of biomolecules such as amino acids, proteins, nucleic acids, and lipids, either by a direct reaction or by the induction of ROS. Singlet oxygen is a highly reactive electrophilic species that reacts with electron-rich molecules and is related to several types of pathologies. To inhibit the oxidation of biomolecules with this species, some substances act as antioxidants by performing a quenching effect. In this chapter, aspects such as its physicochemical properties, methods of generation and detection, as well as the reactivity of this molecule are detailed.2024-02-29T11:51:17ZDiastereoselective Halogenation ReactionsCruz, Daniel A.Sinka, VictoriaPadrón, Juan I.http://hdl.handle.net/10261/3347462023-09-08T01:41:54Z2023-09-07T11:46:06ZTítulo: Diastereoselective Halogenation Reactions
Autor: Cruz, Daniel A.; Sinka, Victoria; Padrón, Juan I.
Resumen: A review of the last 10 years of diastereoselective halogenation methods is presented. They have been divided by reactions into alkenes, alkynes, and heterocycles. In many of the cases, the use of transition metals is described. In all of them, the mechanistic approach proposed by the authors and justifying the obtained diastereoselection is discussed. A miscellaneous section is also included in which allylic fluorinations, double bond isomerizations, ring expansion, and ring-opening halogenations are discussed.2023-09-07T11:46:06ZEl Hierro Island Volcanological Science: An OverviewGonzález, Pablo J.http://hdl.handle.net/10261/3328182023-08-09T01:40:04Z2023-08-08T12:18:13ZTítulo: El Hierro Island Volcanological Science: An Overview
Autor: González, Pablo J.
Resumen: El Hierro Island, the youngest of the Canary Islands, and its latest eruption in 2011–2012 have been a playground of fruitful decade-long studies. In this book, we summarize and provide future venues of action to solve outstanding questions. The topics cover geological studies of Holocene volcanism so it informs past, present and future activity. Its active magmatic system from a petrological and geophysical lens. How monitoring of volcanic activity can be optimized and how to read the data streams in a meaningful way. The marine environmental effects of a submarine eruption are covered in detail, as well as how the society could be properly engage to reduce the risks associated to it, and appreciate and benefit from it. So, in each chapter the reader should find inspiration and future challenges waiting to be solved. Remaining puzzles pieces about how volcanism works and how it affects its environment. An effort to provide food for thoughts of future Canary Islands volcanological research, and in particular El Hierro.2023-08-08T12:18:13ZWhite Paper 14: Dynamic Earth: Probing the past, assessing the present, preparing for the futureCharco, MaríaMartí Molist, JoanGarrido, Carlos J.González, Pablo J.Tornos, F.Carbonell, RamónGeyer, AdelinaGarcía-Fernández, MarianoMoreno Caballud, AnaGiralt, SantiagoViana, MarGallart Gallego, FrancescLlorens, Maria-GemaGarcía-Castellanos, DanielGarcía-Guinea, Javierhttp://hdl.handle.net/10261/2722052022-11-04T17:17:49Z2022-06-10T10:39:11ZTítulo: White Paper 14: Dynamic Earth: Probing the past, assessing the present, preparing for the future
Autor: Charco, María; Martí Molist, Joan; Garrido, Carlos J.; González, Pablo J.; Tornos, F.; Carbonell, Ramón; Geyer, Adelina; García-Fernández, Mariano; Moreno Caballud, Ana; Giralt, Santiago; Viana, Mar; Gallart Gallego, Francesc; Llorens, Maria-Gema; García-Castellanos, Daniel; García-Guinea, Javier
Resumen: Every day human activities involve interaction with our planet Earth. Everything around us is built upon the Earth, grows on the Earth, or depends on the environments and internal dynamics of the Earth to some degree. Indeed, Earth’s dynamic processes have strong influence on our society today as they have had at any time in human history, providing both major opportunities as well as challenges. Therefore, the knowledge about the Earth is the key to develop an informed citizenry and a global awareness of a common Planet and a common future. For example, dynamic processes during interaction between the tectonic plates that make up the outer “skin” of Earth provide us with the valuable mineral deposits we need to develop our society, or the arable land and fertile soils needed to sustain it. Likewise, plate boundaries are the locus of hazards such as earthquakes, tsunamis, and volcanic eruptions that can cause large-scale disruption to, and displacement of, communities and economies. Just as one example, the March 11th, 2011 Tohoku earthquake offshore Japan, shows how a single-event natural disaster caused by one of the dynamic processes of the Earth (plate subduction) can have important socio-economic impacts that range from large-scale infrastructure damage to local and regional population relocation. Understanding the full range of Earth’s dynamic processes will not stop natural disasters like the Tohoku earthquake, but it will provide important information for developing models for their mitigation.
Descripción: 111 p.2022-06-10T10:39:11Z