Now showing items 5674-5693 of 41723

    Changes in soil biodiversity and activity along management and climatic gradients 

    Marí Marí, Teresa (Date of defense: 2017-10-31)

    Els anomenats “rangelands” són àrees sense cultivar, àmpliament pasturades per animals domèstics i salvatges, actualment amenaçats pels canvis climàtic i en l’ús del sòl. Els microorganismes del sòl tenen un paper clau ...

    Changes in Swing High Bar Performance and Coordination: Skill Acquisition and Fine Tuning Skill 

    Busquets Faciabén, Albert (Date of defense: 2010-03-10)

    Numerous motor-perceptual tasks can be observed across the ages, especially if individuals are involved in sport activities. A person facing a novel task has to elaborate new movements to achieve the task goal (skill ...

    Changes in terpene production and emission in response to climate change and eutrophication 

    Blanch Roure, Josep Salvador (Date of defense: 2010-10-09)

    80% of Volatile Organic Compounds (VOCs) that are emitted every year to the atmosphere come from biogenic sources (BVOCs), where many different families are included, such as isoprenoids. The production and emission of ...

    Changes in the HIV-1 env gene: Implications at the RNA and protein structure levels 

    Cunyat Viaplana, Francesc (Date of defense: 2012-07-06)

    La glicoproteïna de l’envolta (Env) és una de les proteïnes claus del VIH-1 en patogènesi. La seqüència del gen env és important per a codificar l’Env però també per les estructures secundàries dels RREs que contenen els ...

    Changing consumer behavior in the digital age: perceived risk in information search process 

    Balladares Fuentes, Ana Gabriela (Date of defense: 2021-03-19)

    La digitalització en el entorn del marketing està canviant la manera en la que els consumidors decideixen comprar. Així mateix, el risc percebut té un rol determinant en les decisions de compra dels consumidors. No obstant ...

    Changing gendered expectations and diverging divorce trends : three papers on gender norms and partnership Dynamics 

    Pessin, Léa (Date of defense: 2016-07-07)

    The dissertation addresses how changes in gender norms influence demographic behaviors. It is composed of three articles. The first focuses on the macro-micro association between regional gender norms and couples' divorce ...

    Changing horizon of climate science: from scientific knowledge towards demand based, integrated climate services 

    Lehoczky, Annamária (Date of defense: 2017-10-27)

    Els Serveis Climàtics (SC) tenen un rol addicional en la ciència del clima, amb l’objectiu de proporcionals als diferents tipus d’usuaris informació útil y processada sobre variabilitat climàtica, els impactes i riscos del ...

    Changing paradigms of women's labor market participation: cases of Denmark and the USA 

    Ratniece, Luïze (Date of defense: 2019-12-16)

    This thesis contributes to knowledge about gender differences in labor market attachment by using a longitudinal, life-course approach, and consists of three empirical articles. The first one establishes the profile of ...

    Changing the Intrinsic Growth Capacity of motor and sensory neurons to promote axonal growth after injury 

    Allodi, Ilary (Date of defense: 2012-07-12)

    Les lesions dels nervis perifèrics provoquen paràlisis, anestèsia i pèrdua del control autonòmic de la zona afectada. Després de lesió, la part distal dels axons queda desconectat del soma i degenera, provocant la ...

    Channel assignment protocols for multi-radio multi-channel wireless mesh netwworks 

    Amiri Nehzad, Maryam (Date of defense: 2013-01-30)

    The increasing demand for large and low cost wireless coverage, ranging from campus to city wide areas, has motivated a high interest in multi-hop communications with Wireless Mesh Networks (WMN) based on IEEE 802.11s as ...

    Channel selection and reverberation-robust automatic speech recognition 

    Wolf, Martin (Date of defense: 2013-11-11)

    If speech is acquired by a close-talking microphone in a controlled and noise-free environment, current state-of-the-art recognition systems often show an acceptable error rate. The use of close-talking microphones, however, ...

    Channel Sounding and physical layer definition for the HF long-haul link between Antarctica and Spain 

    Hervas García, Marcos Antonio (Date of defense: 2016-02-02)

    La comunicació per rebot ionosfèric en la banda d’HF es presenta com una bona candidata en l’establiment de trucades i transmissió de dades per aplicacions militars, països en vies de desenvolupament, catàstrofes naturals ...

    Channel state Information and joint transmitter-receiver design in multi-antenna systems 

    Pascual Iserte, Antonio (Date of defense: 2005-02-17)

    Esta tesis aborda el problema del diseño de sistemas multiantena, donde el caso más general corresponde a un canal multi-input-multi-output (MIMO) con un transmisor y un receptor con más de una antena. La ventaja de estos ...

    Chaos in the buck converter 

    Olivar, Gerard (Date of defense: 1997-07-01)

    Esta tesis estudia el fenómeno del caos en las ecuaciones que modelan un convertidor buck con control PWM. Desde el punto de vista matemático, contribuye al estudio de los sistemas lineales a trozos tridimensionales, con ...

    Characterisation and adaptive learning in interactive video retrieval 

    Fernández Beltrán, Rubén (Date of defense: 2016-05-20)

    El objetivo principal de esta tesis consiste en utilizar eficazmente los modelos de tópicos latentes para afrontar el problema de la recuperación automática de vídeo. Concretamente, se pretende mejorar tanto a nivel de ...

    Characterisation and adding value to agro-forestry biomass products obtained from thermochemical processes 

    Artigues Agramunt, Anna (Date of defense: 2016-02-19)

    L’aprofitament de biomassa per produir biocombustibles i bioproductes a partir de fonts renovables està despertant un gran interès en els últims anys motivat per la oportunitat de convertir un residu en una font primària ...

    Characterisation and thermo-hydro-mechanical behaviour of unsaturated Boom clay: an experimental study 

    Romero Morales, Enrique (Date of defense: 1999-09-08)

    El objetivo principal de esta investigación se centra en el análisis de los efectos de la temperatura y la hidratación o secado de las arcillas en el comportamiento de cambio de volumen, permeabilidad y características de ...

    Characterisation of CuInS2 Films for Solar Cell Applications by Raman Spectroscopy 

    Álvarez García, Jacobo (Date of defense: 2002-04-19)

    CuInS2 is a good candidate as photovoltaic absorber for the fabrication of high efficient and low cost solar cells. In this work, the vibrational properties of CuInS2 films have been studied by means of Raman Spectroscopy, ...

    Characterisation of PRRSV1 infection in bone marrow-derived dendritic cells 

    Li, Yanli (Date of defense: 2017-11-23)

    Esta tesis tiene como objeto caracterizar la adhesión, la replicación y la inducción de apoptosis en células dendríticas inmaduras (i) y maduras (m) derivadas de médula ósea (BMDC) enfrentadas al virus del PRRS (VPRRS). ...

    Characterisation of SSI-based instruction as an innovation in secondary education: a multiple case study in Spain 

    Alcaraz Domínguez, Silvia (Date of defense: 2021-12-16)

    One of the characteristics of knowledge societies is the increasingly important role of science and technology in our daily lives. In this context, there is a need in formal education to help students develop a scientific ...