4,335 research outputs found
Microbial diversity study of an underwater volcano in a degassing stage: island of El Hierro (Canary Islands)
No full textTrabajo final presentado por Daniel Romano Gude para un Máster de la Universitat de Barcelona (UB), realizado bajo la dirección de la Dra. Isabel Ferrera del Institut de Ciències del Mar (ICM-CSIC)Peer Reviewe
Interannual seasonal dynamics of aerobic anoxygenic photoheterotrophs in the NW Mediterranean Sea
No full textTrabajo presentado por Joan Martí Carreras para un Máster de la Universitat Pompeu Fabra (UPF), realizada bajo la dirección de la Dra. Isabel Ferrera y del Dr. Pablo Sánchez del Institut de Ciències del Mar (ICM-CSIC)Peer Reviewe
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Daughter of fortune: Isabel Allende's popularity from a readership perspective
No full textThe primary aim of this thesis is to explore and critically interrogate Isabel Allende’s popularity cross-culturally in Britain and Spain. It analyses readers’ responses to Allende’s works as well as the discourses surrounding her public representation, an approach that is ‘readerly’ but must also take account of production and text. This approach is intended to further the understanding of Allende’s work which so far has always been analysed from a textual perspective. However, the relationship between Allende’s popularity, her texts, public representation and readers has not been yet analysed in detail.This thesis is innovative in other ways too. Methodologically, it approaches readers through the under studied cultural form of the reading group. It also incorporates a comparative dimension by looking at the reception of Allende in two different cultural contexts: the British and Spanish respectively. Finding out about Allende’s popularity has involved asking readers about their reading experiences as well as analysing the production of discourses around her public representation. Paul Ricoeur’s (1984, 1988) perspective on authorial intentions and readers’ responses to texts helps in understanding the intricacies surrounding what is involved in reading any text. It draws attention to Allende’s and her publishers’ authorial strategies, her ‘strategies of persuasion’ and the specificity of the lives and contexts of British and Spanish reading publics. Equally, this ‘readerly’ approach draws on feminist audience research and primarily on the work of Ien Ang and Janice Radway. Their work with viewers and readers respectively is particularly useful in establishing and developing methodological parameters for the study of reading groups. As a whole, this thesis contributes to the understanding of Allende’s cross-cultural popularity by situating readers at the centre
Development and characterization of sulfide-oxidizing biofilms
No full textMemoria de tesis doctoral presentada por Isabel Ferrera Ceada para optar al grado de Doctora en Ciencias Biológicas por la Universitat Autònoma de Barcelona (UAB), realizada bajo la dirección del Dr. Jordi Mas Gordi y de la Dra. Olga Sánchez Martínez.-- 139 pages[EN] This works deals with the development and characterization of complex sulfide-oxidizing biofilms. A bioreactor for biofilm development has been designed. The system is based on a non-aerated illuminated packed-column, which provides a large surface for microbial attachment. The reactor operates as a sulfidostat and the control system allows to maintain a constant concentration of residual sulfide in the micromolar range thus avoiding inhibition of sulfide oxidizers due to excessive sulfide load and ensuring a constant quality in the effluent. [...][CAT] En el present treball s'han desenvolupat i caracteritzat biofilms per a la detoxificació d'efluents contaminats amb compostos reduïts de sofre. En primer lloc es va dissenyar un bioreactor basat en una columna il·luminada que aporta una gran i heterogènia superfície d'adhesió per als microorganismes, i en el qual no hi ha aportació externa d'oxigen. El sistema de control, basat en el potencial redox, permet mantenir constant la concentració residual de sulfur d'hidrogen en el rang micromolar, evitant la inhibició dels microorganismes i mantenint al mateix temps la qualitat de l'efluent generat. [...]Peer Reviewe
Ocurrence of the denitrification genes nirS and nosZ in the microbiome of the aquaculture extractive species Holoturia tubulosa
No full textPioneres de les profunditats
No full textLa nostra relació amb l’oceà és més estreta del que ens pensem: l’oceà ens alimenta, absorbeix l’excés de gasos d’efecte d’hivernacle i de calor, captura carboni, i és també una font perenne d’inspiració artística. El consens sobre la importància de la seva conservació és indubtable. En aquesta taula rodona conversem amb dones pioneres que s’han endinsat en les profunditats oceàniques i que ens expliquen els resultats de les seves experiències submarines.
L’oceanògrafa Cristina Romera dialoga amb l’apneista i fotògrafa japonesa Ai Futaki i amb la microbiòloga Isabel Ferrera, una de les poques persones que ha descendit a 2.600 metres de profunditat a bord de l’Alvin, el submarí que va descobrir les restes del Titanic. El diàleg ofereix, també, una radiografia de l’estat actual dels oceansPeer reviewe
Towards a Global Perspective of the Marine Microbiome
No full textMarine microbes play fundamental roles in nutrient cycling and climate regulation at a
planetary scale. The field of marine microbial ecology has experienced major
breakthroughs following the application of high-throughput sequencing and cultureindependent methodologies that have pushed the exploration of the marine microbiome
to an unprecedented scale. This chapter overviews how the advances in gene- and
genome-centric approaches as well as in culturing and single cell physiological
methodologies in conjunction with global oceanographic circumnavigation expeditions
and long-term time series are fueling our understanding of the biogeography, temporal
dynamics, functional diversity, and evolutionary processes of microbial populations. We
discuss how the joint effort of all those integrative approaches will help to boost our
knowledge of the marine microbiome to reach a predictive understanding of how it is
going to evolve in future scenarios
Long-term patterns of an interconnected core marine microbiota
No full textOcean microbes constitute ~ 70% of the marine biomass, are responsible for ~ 50% of the Earth’s primary production and are crucial for global biogeochemical cycles. Marine microbiotas include core taxa that are usually key for ecosystem function. Despite their importance, core marine microbes are relatively unknown, which reflects the lack of consensus on how to identify them. So far, most core microbiotas have been defined based on species occurrence and abundance. Yet, species interactions are also important to identify core microbes, as communities include interacting species. Here, we investigate interconnected bacteria and small protists of the core pelagic microbiota populating a long-term marine-coastal observatory in the Mediterranean Sea over a decade
Climate Change and the Oceanic Carbon Cycle : Variables and Consequences
No full text304 pagesPeer Reviewe
A Discussion About Writing Fiction and Creative Prose with Isabel Huggan
No full textAward-winning Canadian author Isabel Huggan talks to students about writing, with a focus on fiction and creative non-fiction.Presentation for English 2905 (Introduction to Creative Writing), taught by Dr. Stepanie McKenzie
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