Now showing items 13-32 of 220

    Aplicación de la fermentación láctica como estrategia de transformación y valoración de matrices vegetales 

    Benavides Martín, María Angélica (Date of defense: 2019-12-03)

    In Colombia, strategies are being promoted to increase fruit and vegetable production, in order to take advantage of agricultural potential. However, there are also high food losses, low consumption and low transformation. ...

    Application of computer simulation approaches to study the structure and properties of polymeric systems 

    Córdova-Mateo, Esther (Date of defense: 2014-12-12)

    The study at the nanoscopic level of the polymeric systems is a keystone for a deeper understanding of their internal structure and properties, not only at nanometric scale but also at macroscopic level. The disciplines ...

    Application of conducting polymers in nanobiotechnology 

    Dias, Bruno José da Cruz Teixeira (Date of defense: 2011-10-28)

    Esta tesis describe diferentes aplicaciones en el ámbito de la nanobiotecnología de los polímeros conductores generados electroquímicamente. El objetivo principal de la Tesis, que además es el nexo común de los diferentes ...

    Application of molecular simulation techniques to the design of nanosystems 

    Rodríguez Ropero, Francisco (Date of defense: 2009-12-14)

    Nanotechnology is a multidisciplinary branch of science and technology that involves a widerange of different fields such as chemistry, materials science, physics or chemical engineeringwhose goal is the production of new ...

    Application of ultrasound in twin-screw extrusion and microinjection molding: improvements of properties of processed materials and nanocomposites : polymers and biopolymers 

    Pérez Llanos, Germán Aníbal (Date of defense: 2022-02-18)

    The plastics industry is in constant evolution looking to improve the properties of new materials and performance in different applications. Currently, the environmental impact associated with the use of plastics is one ...

    Aprovechamiento de residuos agro-industriales : preparación de extractos, caracterización y uso en alimentos 

    Segovia Gómez, Francisco (Date of defense: 2015-12-01)

    Vegetables and fruits are foods that have large number of compounds beneficial to health, as well as being essential in the diet. Its components include the phenolic substances. These compounds have a great antiradical ...

    Avaluació d'alternatives industrials per a l'obtenció de nous materials que valoritzen residus queratínics 

    Casadesús Fusté, Marta (Date of defense: 2019-11-25)

    The worldwide poultry industry generates a large amount of wastes which, accordingly to the current law, are mostly discarded. These wastes include chicken feathers, keratin structures which 109.056.179 ton were generated ...

    Avaluació dels efluents d'una adoberia: Anàlisi microcoulombimètrica, cromatogràfica i ecotoxicològica 

    Gibert Rocavert, Carles (Date of defense: 2004-09-29)

    L'adob de pells ovines és un procés llarg i complex, en el que s'utilitza l'aigua com a vehicle per treure les parts no desitjables de la pell i introduir-hi productes químics per transformar-la. El resultat és la generació ...

    Bio-based polyesters from cyclic monomers derived from carbohydrates 

    Lavilla Aguilar, Cristina (Date of defense: 2013-11-29)

    Polyesters are extremely versatile polymers which can be used in a wide variety of applications ranging from high performance materials to recyclable and degradable polymers. The preparation of polyesters from renewable ...

    Biomedical applications of hybrid polymer-based materials 

    Enshaei, Hamidreza (Date of defense: 2022-04-24)

    Polymers have been widely used in biomedical applications for drug delivery purposes in the last decades. However, ordinary long­ term drug delivery systems are sometimes associated with undesired side effects if the ...

    Caracterització estructural de la proteïna P4, un regulador de la transcripció en el bacteriòfag phi29. 

    Badia Martínez, Daniel (Date of defense: 2005-07-22)

    En aquest treball es descriu la determinació estructural mitjançant cristal·lografia de raigs X de la proteïna p4 del bacteriòfag phi29 en la seva forma lliure i en complex amb DNA.<br/>La proteïna p4 és essencial en el ...

    Caracterización estructural de fibras lyocell y su comportamiento frente a procesos de degradación 

    Carrillo Navarrete, Fernando (Date of defense: 2002-06-03)

    Durante estas últimas décadas ha habido un gran interés científico y tecnológico en el desarrollo de nuevos sistemas para la obtención e hilatura de fibras de celulosa regenerada. Las tecnologías aplicadas en este campo ...

    Carbohydrate-based Polyurethanes and Polyamides: Synthesis, Characterization and Stereocomplex Formation 

    Marín Bernabé, Romina (Date of defense: 2009-05-07)

    Esta tesis doctoral está dirigida al desarrollo de poliuretanos a partir de dioles derivados de carbohidratos. Los poliuretanos son polímeros muy versátiles que pueden ser usados en una amplia variedad de aplicaciones que ...

    Carencia de nucleoplasmina en los ovocitos de Holothuria tubulosa.Otra posible actividad que remodela la cromatina del espermatozoide 

    del Valle Mendoza, Luís Javier (Date of defense: 2000-01-14)

    Durante la fertilización el núcleo del espermatozoide queda inmerso en el citoplasma del ovocito, y seguidamente, se transforma en el pronúcleo masculino. La formación del pronúcleo masculino se refiere al proceso de ...

    CFD studies of reactive flow with thermal and mass diffusional effects in a supercritical packed bed catalytic reactor 

    Mekala, Samuel J. (Date of defense: 2017-03-20)

    Packed bed reactors are widely used in various chemical processes. Fundamental understanding of the heat and mass transfer phenomena in the packed beds is essential for better modelling of these processes. Theoretical ...

    Characteristics of bioactive molecules with antioxidant and biological activities of some medicinal and edible plants 

    Ouerfelli, Manel (Date of defense: 2021-11-24)

    The present work has focused on the study of two edible plants, with attributable medicinal values, named Anthyllis vulneraria L. (A.vulneraria) and Azadirachta indica L. (A.indica) collected in Tunisia and India, ...

    Characterization and modelling of micro and nanofluidic systems 

    Licon Bernal, Edxon Eduardo (Date of defense: 2015-03-13)

    Lab-on-a-chip arrangements are ever more frequently used for the miniaturization of chemical and biochemical analysis. In these arrangements, all the manipulations of analyte transport, separation, mixing with reactants ...

    Characterization of amino acid changes in visual pigment evolution and interaction with associated proteins 

    Fernández Sampedro, Miguel Antonio (Date of defense: 2018-06-11)

    Visual opsins are G protein-coupled receptors that function as light photoreceptors in the vertebrate retina. Rhodopsin is the visual pigment located in the rod photoreceptor cells specialized in scotopic vision. Bovine ...

    Chromatographic separations for fission products and actinides determination by different analytical techniques: mass spectrometry and radiometry 

    Perna, Lorenzo (Date of defense: 2003-06-26)

    Due to the nuclear testing, reentry and disintegration of nuclear powered satellites, nuclear reactor accidents, uranium nuclear fuel cycle and nuclear weapons production, actinides have been introduced into the environment. ...

    Cinética, Equilibrio y Transporte de materia en la hidratación Catalítica directa de Isobuteno a Ter-Butanol 

    Velo García, Enrique (Date of defense: 1992-12-17)

    L'objectiu d'aquesta Tesi Doctoral és la modelització matemàtica del procés d'hidratació catalítica directa de isobutè a ter butanol sobre Amberlyst-15 en un reactor de llit fix escorregut en equicorrent descendent. La ...