Search

Your search keyword '"University of Portsmouth"' showing total 5,040 results
Start Over Author "University of Portsmouth"
5,040 results on '"University of Portsmouth"'

4. Pilot Trial of ExACT (Exercise as Airway Clearance Therapy) for People With Cystic Fibrosis (ExACT-CF)

Author

Royal Hospital for Children and Young People, Edinburgh, University of Edinburgh, Cystic Fibrosis Trust, Department of Sport, Exercise and Rehabilitation, University of Northumbria at Newcastle, Department of Psychology, University of Portsmouth, Queen Elizabeth University Hospital Glasgow, Newcastle-upon-Tyne Hospitals NHS Trust, and Zoe Saynor, Reader in Clinical Exercise Physiology

Published
2023

6. Risk Factors for Exertional Heat Illness

Author

Institute of Naval Medicine (UK), CTCRM Lympstone (UK), University of Portsmouth (UK), Public Health Wales (UK), Bangor University (UK), Headquarters Army Recruiting and Initial Training Command (UK), and Defence Science and Technology (UK)

Published
2023

14. The Kidney BEAM Trial

Author

Bangor University, University of Portsmouth, University of Leicester, Manchester University NHS Foundation Trust, University Hospitals Bristol and Weston NHS Foundation Trust, and Belfast Health and Social Care Trust

Published
2021

22. Comprehensive expression analysis for the core cell cycle regulators in the chicken embryo reveals novel tissue-specific synexpression groups and similarities and differences with expression in mouse, frog and zebrafish

Author

European Commission, University of Portsmouth, Alaiz-Noya, Marta, Berti, Federica, Dietrich,Susanne, European Commission, University of Portsmouth, Alaiz-Noya, Marta, Berti, Federica, and Dietrich,Susanne

Abstract

The core cell cycle machinery is conserved from yeast to humans, and hence it is assumed that all vertebrates share the same set of players. Yet during vertebrate evolution, the genome was duplicated twice, followed by a further genome duplication in teleost fish. Thereafter, distinct genes were retained in different vertebrate lineages; some individual gene duplications also occurred. To which extent these diversifying tendencies were compensated by retaining the same expression patterns across homologous genes is not known. This study for the first time undertook a comprehensive expression analysis for the core cell cycle regulators in the chicken, focusing in on early neurula and pharyngula stages of development, with the latter representing the vertebrate phylotypic stage. We also compared our data with published data for the mouse, Xenopus and zebrafish, the other established vertebrate models. Our work shows that, while many genes are expressed widely, some are upregulated or specifically expressed in defined tissues of the chicken embryo, forming novel synexpression groups with markers for distinct developmental pathways. Moreover, we found that in the neural tube and in the somite, mRNAs of some of the genes investigated accumulate in a specific subcellular localisation, pointing at a novel link between the site of mRNA translation, cell cycle control and interkinetic nuclear movements. Finally, we show that expression patterns of orthologous genes may differ in the four vertebrate models. Thus, for any study investigating cell proliferation, cell differentiation, tissue regeneration, stem cell behaviour and cancer/cancer therapy, it has to be carefully examined which of the observed effects are due to the specific model organism used, and which can be generalised.

Published
2022

23. The intercultural experiences of Chinese international students in the UK

Author

Zheng, Lin; Senior Lecturer, School of Languages and Applied Linguistics, University of Portsmouth, UK, Baker, Will; Dr Will Baker, Director of the Centre for Global Englishes, Associate Professor, Modern Languages and Linguistics, University of Southampton, UK., Zheng, Lin; Senior Lecturer, School of Languages and Applied Linguistics, University of Portsmouth, UK, and Baker, Will; Dr Will Baker, Director of the Centre for Global Englishes, Associate Professor, Modern Languages and Linguistics, University of Southampton, UK.

Abstract

This paper aims to investigate a group of Chinese students’ intercultural encounters studying in two articulation programmes in one British university and analyses the barriers that seem to exist between them, home and other international students. This research is qualitative in nature. Thematic analysis of sixteen Chinese students’ interviews and reflective narratives were adopted. A core finding is that the power of the ‘Chinese circle’ provides this group with a comfortable zone but also presents a barrier to engaging in intercultural communication and developing more intercultural identities. Contributing factors to this pull of the Chinese circle include changing attitudes to English and Chinese language, negative intercultural experiences, and a lack of awareness of intercultural identity. It is suggested that universities should diversify their international recruitment, enhance intercultural education and training provided for all international students before and during their studies abroad.

Published
2022

24. The miniJPAS survey: star-galaxy classification using machine learning

Author

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), European Commission, Ministry of Science and Technology (Taiwan), Academia Sinica (Taiwan), Ministerio de Ciencia, Innovación y Universidades (España), Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, National Science Foundation (US), National Aeronautics and Space Administration (US), Ministry of Education, Culture, Sports, Science and Technology (Japan), Japan Science and Technology Agency, National Astronomical Observatory of Japan, Kavli Institute for Particle Astrophysics and Cosmology, High Energy Accelerator Research Organization (Japan), Princeton University, Alfred P. Sloan Foundation, University of Arizona, University of Florida, Harvard University, Johns Hopkins University, Max Planck Institute for extraterrestrial Physics, New York University, The Ohio State University, Pennsylvania State University, University of Portsmouth, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, Yale University, Max Planck Institute for Astrophysics, New Mexico State University, Ministerio de Economía y Competitividad (España), Baqui, P. O., Hernández-Monteagudo, Carlos, López-Sanjuan, Carlos, Solano, E., Varela, Jesús, Vílchez Medina, José Manuel, Benítez, Narciso, Cenarro, A. J., González Delgado, Rosa M., Marín-Franch, Antonio, Moles, Mariano, Vázquez Ramió, H., Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), European Commission, Ministry of Science and Technology (Taiwan), Academia Sinica (Taiwan), Ministerio de Ciencia, Innovación y Universidades (España), Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, National Science Foundation (US), National Aeronautics and Space Administration (US), Ministry of Education, Culture, Sports, Science and Technology (Japan), Japan Science and Technology Agency, National Astronomical Observatory of Japan, Kavli Institute for Particle Astrophysics and Cosmology, High Energy Accelerator Research Organization (Japan), Princeton University, Alfred P. Sloan Foundation, University of Arizona, University of Florida, Harvard University, Johns Hopkins University, Max Planck Institute for extraterrestrial Physics, New York University, The Ohio State University, Pennsylvania State University, University of Portsmouth, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, Yale University, Max Planck Institute for Astrophysics, New Mexico State University, Ministerio de Economía y Competitividad (España), Baqui, P. O., Hernández-Monteagudo, Carlos, López-Sanjuan, Carlos, Solano, E., Varela, Jesús, Vílchez Medina, José Manuel, Benítez, Narciso, Cenarro, A. J., González Delgado, Rosa M., Marín-Franch, Antonio, Moles, Mariano, and Vázquez Ramió, H.

Abstract

Context. Future astrophysical surveys such as J-PAS will produce very large datasets, the so-called "big data", which will require the deployment of accurate and efficient machine-learning (ML) methods. In this work, we analyze the miniJPAS survey, which observed about similar to 1 deg(2) of the AEGIS field with 56 narrow-band filters and 4 ugri broad-band filters. The miniJPAS primary catalog contains approximately 64 000 objects in the r detection band (mag(AB)less than or similar to 24), with forced-photometry in all other filters.Aims. We discuss the classification of miniJPAS sources into extended (galaxies) and point-like (e.g., stars) objects, which is a step required for the subsequent scientific analyses. We aim at developing an ML classifier that is complementary to traditional tools that are based on explicit modeling. In particular, our goal is to release a value-added catalog with our best classification.Methods. In order to train and test our classifiers, we cross-matched the miniJPAS dataset with SDSS and HSC-SSP data, whose classification is trustworthy within the intervals 15 <= r <= 20 and 18.5 <= r <= 23.5, respectively. We trained and tested six different ML algorithms on the two cross-matched catalogs: K-nearest neighbors, decision trees, random forest (RF), artificial neural networks, extremely randomized trees (ERT), and an ensemble classifier. This last is a hybrid algorithm that combines artificial neural networks and RF with the J-PAS stellar and galactic loci classifier. As input for the ML algorithms we used the magnitudes from the 60 filters together with their errors, with and without the morphological parameters. We also used the mean point spread function in the r detection band for each pointing.Results. We find that the RF and ERT algorithms perform best in all scenarios. When the full magnitude range of 15 <= r <= 23.5 is analyzed, we find an area under the curve AUC=0.957 with RF when photometric information alone is used, and AUC

Published
2021

25. Optical follow-up of gravitational wave triggers with DECam during the first two LIGO/VIRGO observing runs

Author

National Science Foundation (US), Department of Energy (US), University of Illinois, Stanford University, New York State Office of Science, Technology and Academic Research, Lawrence Berkeley National Laboratory, University of Pennsylvania, The Ohio State University, University of Chicago, University of Michigan, Texas A&M University, University of Portsmouth, Science and Technology Facilities Council (UK), University College London, European Research Council, University of Nottingham, University of Sussex, German Research Foundation, Ministerio de Economía y Competitividad (España), Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Financiadora de Estudos e Projetos (Brasil), Herner, K., García-Bellido, Juan, Ávila, Santiago, Fosalba, Pablo, Gaztañaga, Enrique, Serrano, Santiago, Zhang, Y., National Science Foundation (US), Department of Energy (US), University of Illinois, Stanford University, New York State Office of Science, Technology and Academic Research, Lawrence Berkeley National Laboratory, University of Pennsylvania, The Ohio State University, University of Chicago, University of Michigan, Texas A&M University, University of Portsmouth, Science and Technology Facilities Council (UK), University College London, European Research Council, University of Nottingham, University of Sussex, German Research Foundation, Ministerio de Economía y Competitividad (España), Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Financiadora de Estudos e Projetos (Brasil), Herner, K., García-Bellido, Juan, Ávila, Santiago, Fosalba, Pablo, Gaztañaga, Enrique, Serrano, Santiago, and Zhang, Y.

Abstract

Gravitational wave (GW) events detectable by LIGO and Virgo have several possible progenitors, including black hole mergers, neutron star mergers, black hole–neutron star mergers, supernovae, and cosmic string cusps. A subset of GW events is expected to produce electromagnetic (EM) emission that, once detected, will provide complementary information about their astrophysical context. To that end, the LIGO–Virgo Collaboration (LVC) sends GW candidate alerts to the astronomical community so that searches for their EM counterparts can be pursued. The DESGW group, consisting of members of the Dark Energy Survey (DES), the LVC, and other members of the astronomical community, uses the Dark Energy Camera (DECam) to perform a search and discovery program for optical signatures of LVC GW events. DESGW aims to use a sample of GW events as standard sirens for cosmology. Due to the short decay timescale of the expected EM counterparts and the need to quickly eliminate survey areas with no counterpart candidates, it is critical to complete the initial analysis of each night's images as quickly as possible. We discuss our search area determination, imaging pipeline, and candidate selection processes. We review results from the DESGW program during the first two LIGO–Virgo observing campaigns and introduce other science applications that our pipeline enables.

Published
2020

26. First cosmology results using supernovae ia from the dark energy survey: Survey overview, performance, and supernova spectroscopy

Author

Australian Astronomical Observatory, Comisión Nacional de Investigación Científica y Tecnológica (Chile), University of California, National Aeronautics and Space Administration (US), W. M. Keck Foundation, Smithsonian Institution, University of Arizona, South African Astronomical Observatory, European Commission, Google, University of Southampton, Department of Energy (US), National Science Foundation (US), National Energy Research Scientific Computing Center (US), Gordon and Betty Moore Foundation, Heising Simons Foundation, David and Lucile Packard Foundation, Agencia Nacional de Investigación y Desarrollo (Chile), Ministerio de Educación y Ciencia (España), Science and Technology Facilities Council (UK), Higher Education Funding Council for England, University of Illinois, University of Chicago, The Ohio State University, Texas A&M University, Financiadora de Estudos e Projetos (Brasil), Ministério da Ciência, Tecnologia e Inovação (Brasil), Deutsches Krebsforschungszentrum, University of Cambridge, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (España), University College London, University of Edinburgh, CSIC - Instituto de Ciencias del Espacio (ICE), Ministerio de Ciencia e Innovación (España), University of Pennsylvania, University of Portsmouth, Stanford University, University of Sussex, Smith, Mathew, Castander, Francisco J., Casas, Ricard, Gaztañaga, Enrique, Serrano, Santiago, Wester, W., Dark Energy Sruvey Collaboration, Australian Astronomical Observatory, Comisión Nacional de Investigación Científica y Tecnológica (Chile), University of California, National Aeronautics and Space Administration (US), W. M. Keck Foundation, Smithsonian Institution, University of Arizona, South African Astronomical Observatory, European Commission, Google, University of Southampton, Department of Energy (US), National Science Foundation (US), National Energy Research Scientific Computing Center (US), Gordon and Betty Moore Foundation, Heising Simons Foundation, David and Lucile Packard Foundation, Agencia Nacional de Investigación y Desarrollo (Chile), Ministerio de Educación y Ciencia (España), Science and Technology Facilities Council (UK), Higher Education Funding Council for England, University of Illinois, University of Chicago, The Ohio State University, Texas A&M University, Financiadora de Estudos e Projetos (Brasil), Ministério da Ciência, Tecnologia e Inovação (Brasil), Deutsches Krebsforschungszentrum, University of Cambridge, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (España), University College London, University of Edinburgh, CSIC - Instituto de Ciencias del Espacio (ICE), Ministerio de Ciencia e Innovación (España), University of Pennsylvania, University of Portsmouth, Stanford University, University of Sussex, Smith, Mathew, Castander, Francisco J., Casas, Ricard, Gaztañaga, Enrique, Serrano, Santiago, Wester, W., and Dark Energy Sruvey Collaboration

Abstract

We present details on the observing strategy, data-processing techniques, and spectroscopic targeting algorithms for the first three years of operation for the Dark Energy Survey Supernova Program (DES-SN). This five-year program using the Dark Energy Camera mounted on the 4 m Blanco telescope in Chile was designed to discover and follow supernovae (SNe) Ia over a wide redshift range (0.05 < z < 1.2) to measure the equation-of-state parameter of dark energy. We describe the SN program in full: Strategy, observations, data reduction, spectroscopic follow-up observations, and classification. From three seasons of data, we have discovered 12,015 likely SNe, 308 of which have been spectroscopically confirmed, including 251 SNe Ia over a redshift range of 0.017 < z < 0.85. We determine the effective spectroscopic selection function for our sample and use it to investigate the redshiftdependent bias on the distance moduli of SNe Ia we have classified. The data presented here are used for the first cosmology analysis by DES-SN ("DES-SN3YR"), the results of which are given in Dark Energy Survey Collaboration et al. The 489 spectra that are used to define the DES-SN3YR sample are publicly available at https://des.ncsa.illinois.edu/releases/sn.

Published
2020

27. The Open Cluster Chemical Abundances and Mapping Survey. IV. Abundances for 128 Open Clusters Using SDSS/APOGEE DR16

Author

National Science Foundation (US), Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Centro de Excelencia en Astrofísica y Tecnologías Afines (Chile), Universidad de La Serena (Chile), Crafoord Foundation, Olle Engkvist Foundation, Ruth and Nils-Erik Stenbäcks Foundation, Comisión Nacional de Investigación Científica y Tecnológica (Chile), Alfred P. Sloan Foundation, Department of Energy (US), University of Arizona, Brookhaven National Laboratory (US), Carnegie Mellon University, University of Florida, Harvard University, Instituto de Astrofísica de Canarias, Michigan State University, University of Notre Dame, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for extraterrestrial Physics, New Mexico State University, New York University, The Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, Yale University, Donor, John, Anders, Friedrich, Zasowski, Gail, Gaia Collaboration, National Science Foundation (US), Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Centro de Excelencia en Astrofísica y Tecnologías Afines (Chile), Universidad de La Serena (Chile), Crafoord Foundation, Olle Engkvist Foundation, Ruth and Nils-Erik Stenbäcks Foundation, Comisión Nacional de Investigación Científica y Tecnológica (Chile), Alfred P. Sloan Foundation, Department of Energy (US), University of Arizona, Brookhaven National Laboratory (US), Carnegie Mellon University, University of Florida, Harvard University, Instituto de Astrofísica de Canarias, Michigan State University, University of Notre Dame, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for extraterrestrial Physics, New Mexico State University, New York University, The Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, Yale University, Donor, John, Anders, Friedrich, Zasowski, Gail, and Gaia Collaboration

Abstract

The Open Cluster Chemical Abundances and Mapping (OCCAM) survey aims to constrain key Galactic dynamical and chemical evolution parameters by the construction of a large, comprehensive, uniform, infrared-based spectroscopic data set of hundreds of open clusters. This fourth contribution from the OCCAM survey presents analysis using Sloan Digital Sky Survey/APOGEE DR16 of a sample of 128 open clusters, 71 of which we designate to be "high quality" based on the appearance of their color-magnitude diagram. We find the APOGEE DR16 derived [Fe/H] abundances to be in good agreement with previous high-resolution spectroscopic open cluster abundance studies. Using the high-quality sample, we measure Galactic abundance gradients in 16 elements, and find evolution of some of the [X/Fe] gradients as a function of age. We find an overall Galactic [Fe/H] versus R gradient of -0.068 ± 0.001 dex kpc over the range of 6 < R < 13.9 kpc; however, we note that this result is sensitive to the distance catalog used, varying as much as 15%. We formally derive the location of a break in the [Fe/H] abundance gradient as a free parameter in the gradient fit for the first time. We also measure significant Galactic gradients in O, Mg, S, Ca, Mn, Cr, Cu, Na, Al, and K, some of which are measured for the first time. Our large sample allows us to examine four well-populated age bins in order to explore the time evolution of gradients for a large number of elements and comment on possible implications for Galactic chemical evolution and radial migration.

Published
2020

28. Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger candidate S190814bv

Author

National Aeronautics and Space Administration (US), University of Hawaii, Queen's University Belfast, Space Telescope Science Institute (US), National Research Foundation (South Africa), National Astronomical Research Institute of Thailand, University of Portsmouth, University of Turku, Instituto de Astrofísica de Canarias, Science and Technology Facilities Council (UK), Ministerio de Economía, Fomento y Turismo (Chile), Comisión Nacional de Investigación Científica y Tecnológica (Chile), Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Danish National Research Foundation, Alexander von Humboldt Foundation, Villum Fonden, Fundação para a Ciência e a Tecnologia (Portugal), Polish National Agency for Academic Exchange, Ackley, K., Castro-Tirado, Alberto J., Hu, Youdong, Kann, D.A., National Aeronautics and Space Administration (US), University of Hawaii, Queen's University Belfast, Space Telescope Science Institute (US), National Research Foundation (South Africa), National Astronomical Research Institute of Thailand, University of Portsmouth, University of Turku, Instituto de Astrofísica de Canarias, Science and Technology Facilities Council (UK), Ministerio de Economía, Fomento y Turismo (Chile), Comisión Nacional de Investigación Científica y Tecnológica (Chile), Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Danish National Research Foundation, Alexander von Humboldt Foundation, Villum Fonden, Fundação para a Ciência e a Tecnologia (Portugal), Polish National Agency for Academic Exchange, Ackley, K., Castro-Tirado, Alberto J., Hu, Youdong, and Kann, D.A.

Abstract

Context. Gravitational wave (GW) astronomy has rapidly reached maturity, becoming a fundamental observing window for modern astrophysics. The coalescences of a few tens of black hole (BH) binaries have been detected, while the number of events possibly including a neutron star (NS) is still limited to a few. On 2019 August 14, the LIGO and Virgo interferometers detected a high-significance event labelled S190814bv. A preliminary analysis of the GW data suggests that the event was likely due to the merger of a compact binary system formed by a BH and a NS. Aims. In this paper, we present our extensive search campaign aimed at uncovering the potential optical and near infrared electromagnetic counterpart of S190814bv. We found no convincing electromagnetic counterpart in our data. We therefore use our non-detection to place limits on the properties of the putative outflows that could have been produced by the binary during and after the merger. Methods. Thanks to the three-detector observation of S190814bv, and given the characteristics of the signal, the LIGO and Virgo Collaborations delivered a relatively narrow localisation in low latency - a 50% (90%) credible area of 5 deg2 (23 deg2) - despite the relatively large distance of 267 ± 52 Mpc. ElectromagNetic counterparts of GRAvitational wave sources at the VEry Large Telescope collaboration members carried out an intensive multi-epoch, multi-instrument observational campaign to identify the possible optical and near infrared counterpart of the event. In addition, the ATLAS, GOTO, GRAWITA-VST, Pan-STARRS, and VINROUGE projects also carried out a search on this event. In this paper, we describe the combined observational campaign of these groups. Results. Our observations allow us to place limits on the presence of any counterpart and discuss the implications for the kilonova (KN), which was possibly generated by this NS-BH merger, and for the strategy of future searches. The typical depth of our wide-field observati

Published
2020

29. [O II] emitters in MultiDark-Galaxies and DEEP2

Author

University of Portsmouth, European Research Council, Ministerio de Economía y Competitividad (España), European Commission, Comisión Nacional de Investigación Científica y Tecnológica (Chile), Agencia Nacional de Promoción Científica y Tecnológica (Argentina), Universidad Nacional de La Plata, Favole, Ginevra, Gonzalez-Perez, Violeta, Stoppacher, D., Orsi, A., Comparat, Johan, Cora, S. A., Vega-Martínez, C. A., Stevens, A. R. H., Maraston, C., Croton, Darren J., Knebe, A., Benson, A. J., Montero-Dorta, A. D., Padilla, N., Prada, Francisco, Thomas, D., University of Portsmouth, European Research Council, Ministerio de Economía y Competitividad (España), European Commission, Comisión Nacional de Investigación Científica y Tecnológica (Chile), Agencia Nacional de Promoción Científica y Tecnológica (Argentina), Universidad Nacional de La Plata, Favole, Ginevra, Gonzalez-Perez, Violeta, Stoppacher, D., Orsi, A., Comparat, Johan, Cora, S. A., Vega-Martínez, C. A., Stevens, A. R. H., Maraston, C., Croton, Darren J., Knebe, A., Benson, A. J., Montero-Dorta, A. D., Padilla, N., Prada, Francisco, and Thomas, D.

Abstract

We use three semi-analytical models (SAMs) of galaxy formation and evolution run on the same 1 h(-1) Gpc MultiDark Planck2 cosmological simulation to investigate the properties of [O II] emission line galaxies at redshift z similar to 1. We compare model predictions with different observational data sets, including DEEP2-FIREFLY galaxies with absolute magnitudes. We estimate the [O II] luminosity (L[O II]) of our model galaxies using the public code GET EMLINES, which ideally assumes as input the instantaneous star formation rates (SFRs). This property is only available in one of the SAMs under consideration, while the others provide average SFRs, as most models do. We study the feasibility of inferring galaxies' L[O II] from average SFRs in post-processing. We find that the result is accurate for model galaxies with dust attenuated L[O II] less than or similar to 10(42.2) erg s(-1) (< 5 per cent discrepancy). The galaxy properties that correlate the most with the model L[O II] are the SFR and the observed-frame u and g broad-band magnitudes. Such correlations have r-values above 0.64 and a dispersion that varies with L[O II]. We fit these correlations with simple linear relations and use them as proxies for L[O II], together with an observational conversion that depends on SFR and metallicity. These proxies result in [O II] luminosity functions and halo occupation distributions with shapes that vary depending on both the model and the method used to derive L[O II]. The amplitude of the clustering of model galaxies with L[O II] > 10(40.4) erg s(-1) remains overall unchanged on scales above 1 h(-1) Mpc, independently of the L[O II] computation. © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Published
2020

30. Too many African Solutions to ‘African’ security problems? The politics of regional organizations in the Sahel

Author

Peace, security and conflict in West Africa and the Sahel, University of Ibadan & University of Portsmouth Joint Security Workshop (02/03/2020: Portsmouth), Lopez Lucia, Elisa, Baldaro, Edoardo, Peace, security and conflict in West Africa and the Sahel, University of Ibadan & University of Portsmouth Joint Security Workshop (02/03/2020: Portsmouth), Lopez Lucia, Elisa, and Baldaro, Edoardo

Abstract

info:eu-repo/semantics/nonPublished

Published
2020

31. The Southern Photometric Local Universe Survey (S-PLUS): improved SEDs, morphologies, and redshifts with 12 optical filters

Author

Universidad de La Serena (Chile), Centro de Estudios de Física del Cosmos de Aragón, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Financiadora de Estudos e Projetos (Brasil), National Science Foundation (US), Southern Office of Aerospace Research and Development (US), Consejo Superior de Investigaciones Científicas (España), Ministerio de Economía y Competitividad (España), European Commission, Universidad Nacional Autónoma de México, Alfred P. Sloan Foundation, National Aeronautics and Space Administration (US), Ministry of Education, Culture, Sports, Science and Technology (Japan), Max Planck Society, Higher Education Funding Council for England, American Museum of Natural History, Leibniz Institute for Astrophysics Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University (US), Joint Institute for Nuclear Astrophysics - Center for the Evolution of the Elements (US), Kavli Institute for Particle Astrophysics and Cosmology, Chinese Academy of Sciences, Los Alamos National Laboratory, Max Planck Institute for Astronomy, Max Planck Institute for Astrophysics, New Mexico State University, The Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, U.S. Naval Observatory, University of Washington, Fermilab, Institute for Advanced Study (Germany), Johns Hopkins University, de Oliveira, C. M., Ribeiro, T., Schoenell, W., Kanaan, A., Overzier, R. A., Molino, A., Sampedro, L., Coelho, P., Barbosa, Carlos Eduardo, Cortesi, A., Costa-Duarte, M. V., Brito-Silva, D., Daflon, S., Buzzo, M. L., Farias, H., Hernandez-Fernandez, J. D., Kann, D.A., Damke, G., De Paula, D. F., Dors, O. L., Escudero, C. G., Montero-Dorta, A. D., Fernandes, C., Nemmen, R. S., Katena, L., Oliveira, A. S., Arancibia, M. J., Pattaro, E., Labayru, C., Quint, B., Jatenco-Pereira, V., Rodrigues, I., Riguccini, L., Lazzaro, D., Saha, K., Roig-Roig, Ferran, Neto, G. B. L., Sesto, L. A., Santos, R., Lopes, A. R., Teixeira, R., Silva, R., Magalhães, Regina, Munoz-Elgueta, N., Trevisan, M., de Souza, R. C. T., Makler, M., Castellon, J. L. Nilo, Vika, M., Urrutia-Viscarra, F., de Menezes, R., Ortiz, D., Herpich, F.R., Werle, A., Telles, E., Miralda-Escudé, Jordi, Pereira, C. B., Monteiro-Oliveira, R., Placco, V. M., Ugarte Postigo, Antonio de, Vitorelli, A. Z., Hernández-Jiménez, J.A., Pinto, H. J. R., Rossi, S., Muller, A. S., Castelli, A. V. S., Beers, T. C., Thöne, Cristina Carina, Bonoli, Silvia, Veiga, C. H., Vinicius-Lima, E., Werner, S. V., de Souza, G. F., Xavier, H. S., Gonzalez, A. H., Zaritsky, D., Jaffe, Y., Gutiérrez-Soto, L. A., Abramo, L. R., Lopes, PAA, Kerber, L. O., Saito, R. K., Novais, P. M., Menéndez-Delmestre, Karín, Chies-Santos, A.L., Queiroz, C., Pereira, E. S., Ederoclite, Alessandro, Bonatto, C., Santucci, R. M., Santos, W. A., de Oliveira, R. L., Cypriano, E. S., Westera, P., Siffert, B. B., Gonçalves, D. R., de Souza, RS, Akras, S., Alcaniz, Jailson S., Reis, R. R. R., Almeida, L. A., Ferrari, F., Almeida-Fernandes, F., Ortega-Minakata, R. A., Barbosa, C. L., Whitten, DD, Gonçalves, T. S., Hartmann, EA, Lima-Dias, C., Nakazono, L. M. I., Perottoni, H. D., Caffer, J., Santos-Silva, T., Cano, Z., Sodre, L., Castejon, M., Alonso-Garcia, J., Dantas, M. L. L., Torres-Flores, S., de la Reza, R., Alencar, S., Diem, K. G., de Azevedo, L. J. D., Alvarez-Candal, A., Dupke, Renato A., Donnerstein, R., Amram, P., Faifer, F. R., Eikenberry, S., Azanha, L., Fontes, S., Fernandes, B., Barbá, R. H., Campillay, A., Gregorio-Hetem, J., Hirata, N. S. T., Bernardinelli, P. H., Carvano, J.M., Jiménez-Teja, Y., Izzo, L., Fernandes, M. B., Fernandes, R. C., Branco, V., Krabbe, A. C., Galarza, A., Universidad de La Serena (Chile), Centro de Estudios de Física del Cosmos de Aragón, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Financiadora de Estudos e Projetos (Brasil), National Science Foundation (US), Southern Office of Aerospace Research and Development (US), Consejo Superior de Investigaciones Científicas (España), Ministerio de Economía y Competitividad (España), European Commission, Universidad Nacional Autónoma de México, Alfred P. Sloan Foundation, National Aeronautics and Space Administration (US), Ministry of Education, Culture, Sports, Science and Technology (Japan), Max Planck Society, Higher Education Funding Council for England, American Museum of Natural History, Leibniz Institute for Astrophysics Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University (US), Joint Institute for Nuclear Astrophysics - Center for the Evolution of the Elements (US), Kavli Institute for Particle Astrophysics and Cosmology, Chinese Academy of Sciences, Los Alamos National Laboratory, Max Planck Institute for Astronomy, Max Planck Institute for Astrophysics, New Mexico State University, The Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, U.S. Naval Observatory, University of Washington, Fermilab, Institute for Advanced Study (Germany), Johns Hopkins University, de Oliveira, C. M., Ribeiro, T., Schoenell, W., Kanaan, A., Overzier, R. A., Molino, A., Sampedro, L., Coelho, P., Barbosa, Carlos Eduardo, Cortesi, A., Costa-Duarte, M. V., Brito-Silva, D., Daflon, S., Buzzo, M. L., Farias, H., Hernandez-Fernandez, J. D., Kann, D.A., Damke, G., De Paula, D. F., Dors, O. L., Escudero, C. G., Montero-Dorta, A. D., Fernandes, C., Nemmen, R. S., Katena, L., Oliveira, A. S., Arancibia, M. J., Pattaro, E., Labayru, C., Quint, B., Jatenco-Pereira, V., Rodrigues, I., Riguccini, L., Lazzaro, D., Saha, K., Roig-Roig, Ferran, Neto, G. B. L., Sesto, L. A., Santos, R., Lopes, A. R., Teixeira, R., Silva, R., Magalhães, Regina, Munoz-Elgueta, N., Trevisan, M., de Souza, R. C. T., Makler, M., Castellon, J. L. Nilo, Vika, M., Urrutia-Viscarra, F., de Menezes, R., Ortiz, D., Herpich, F.R., Werle, A., Telles, E., Miralda-Escudé, Jordi, Pereira, C. B., Monteiro-Oliveira, R., Placco, V. M., Ugarte Postigo, Antonio de, Vitorelli, A. Z., Hernández-Jiménez, J.A., Pinto, H. J. R., Rossi, S., Muller, A. S., Castelli, A. V. S., Beers, T. C., Thöne, Cristina Carina, Bonoli, Silvia, Veiga, C. H., Vinicius-Lima, E., Werner, S. V., de Souza, G. F., Xavier, H. S., Gonzalez, A. H., Zaritsky, D., Jaffe, Y., Gutiérrez-Soto, L. A., Abramo, L. R., Lopes, PAA, Kerber, L. O., Saito, R. K., Novais, P. M., Menéndez-Delmestre, Karín, Chies-Santos, A.L., Queiroz, C., Pereira, E. S., Ederoclite, Alessandro, Bonatto, C., Santucci, R. M., Santos, W. A., de Oliveira, R. L., Cypriano, E. S., Westera, P., Siffert, B. B., Gonçalves, D. R., de Souza, RS, Akras, S., Alcaniz, Jailson S., Reis, R. R. R., Almeida, L. A., Ferrari, F., Almeida-Fernandes, F., Ortega-Minakata, R. A., Barbosa, C. L., Whitten, DD, Gonçalves, T. S., Hartmann, EA, Lima-Dias, C., Nakazono, L. M. I., Perottoni, H. D., Caffer, J., Santos-Silva, T., Cano, Z., Sodre, L., Castejon, M., Alonso-Garcia, J., Dantas, M. L. L., Torres-Flores, S., de la Reza, R., Alencar, S., Diem, K. G., de Azevedo, L. J. D., Alvarez-Candal, A., Dupke, Renato A., Donnerstein, R., Amram, P., Faifer, F. R., Eikenberry, S., Azanha, L., Fontes, S., Fernandes, B., Barbá, R. H., Campillay, A., Gregorio-Hetem, J., Hirata, N. S. T., Bernardinelli, P. H., Carvano, J.M., Jiménez-Teja, Y., Izzo, L., Fernandes, M. B., Fernandes, R. C., Branco, V., Krabbe, A. C., and Galarza, A.

Abstract

The Southern Photometric Local Universe Survey (S-PLUS) is imaging similar to 9300 deg(2) of the celestial sphere in 12 optical bands using a dedicated 0.8mrobotic telescope, the T80-South, at the Cerro Tololo Inter-american Observatory, Chile. The telescope is equipped with a 9.2k x 9.2k e2v detector with 10 mu m pixels, resulting in a field of view of 2 deg(2) with a plate scale of 0.55 arcsec pixel-1. The survey consists of four main subfields, which include two non-contiguous fields at high Galactic latitudes (vertical bar b vertical bar > 30 degrees, 8000 deg(2)) and two areas of the Galactic Disc and Bulge (for an additional 1300 deg(2)). S-PLUS uses the Javalambre 12-band magnitude system, which includes the 5 ugriz broad-band filters and 7 narrow-band filters centred on prominent stellar spectral features: the Balmer jump/[OII], Ca H + K, Hd, G band, Mg b triplet, H alpha, and the Ca triplet. S-PLUS delivers accurate photometric redshifts (dz /(1 + z) = 0.02 or better) for galaxies with r < 19.7 AB mag and z < 0.4, thus producing a 3D map of the local Universe over a volume of more than 1 (Gpc/h)(3). The final S-PLUS catalogue will also enable the study of star formation and stellar populations in and around the Milky Way and nearby galaxies, as well as searches for quasars, variable sources, and low-metallicity stars. In this paper we introduce the main characteristics of the survey, illustrated with science verification data highlighting the unique capabilities of S-PLUS. We also present the first public data release of similar to 336 deg(2) of the Stripe 82 area, in 12 bands, to a limiting magnitude of r = 21, available at datalab.noao.edu/splus.© 2019 The Author(s).Published by Oxford University Press on behalf of the Royal Astronomical Society

Published
2019

32. Cities in the Global South: The Water-Food-Energy Nexus and Urban Metabolism

Author

UCL - SST/ILOC - Faculté d'Architecture, d'Ingénierie architecturale, d'Urbanisme, Perrotti, Daniela, Development Studies Research Seminar, Development Studies Group, University of Portsmouth, Portsmouth Business School, UCL - SST/ILOC - Faculté d'Architecture, d'Ingénierie architecturale, d'Urbanisme, Perrotti, Daniela, and Development Studies Research Seminar, Development Studies Group, University of Portsmouth, Portsmouth Business School

Abstract

Keynote presentation in Development Studies Research Seminar, Development Studies Group, University of Portsmouth, Portsmouth Business School.

Published
2018

33. The Story of my Encounter with the Urban Metabolism

Author

UCL - SST/ILOC - Faculté d'Architecture, d'Ingénierie architecturale, d'Urbanisme, Perrotti, Daniela, 14th research seminar of the Cluster for Sustainable Cities, University of Portsmouth, UCL - SST/ILOC - Faculté d'Architecture, d'Ingénierie architecturale, d'Urbanisme, Perrotti, Daniela, and 14th research seminar of the Cluster for Sustainable Cities, University of Portsmouth

Abstract

Keynote presentation at 14th research seminar of the Cluster for Sustainable Cities, University of Portsmouth, UK. Chair prof. S. Lehmann.

Published
2018

34. MULTIDARK-GALAXIES: Data release and first results

Author

Ministerio de Economía y Competitividad (España), European Commission, Australian Research Council, Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Agencia Nacional de Promoción Científica y Tecnológica (Argentina), Universidad Nacional de La Plata, National Aeronautics and Space Administration (US), University of Portsmouth, Knebe, A., Stoppacher, D., Prada, Francisco, Behrens, Christoph, Benson, A., Cora, S. A., Croton, Darren J., Padilla, N. D., Ruiz, A. N., Sinha, M., Stevens, A. R. H., Vega-Martínez, C. A., Behroozi, P., Gonzalez-Perez, Violeta, Gottlöber, S., Klypin, Anatoly, Yepes, G., Enke, H., Libeskind, N. I., Riebe, K., Steinmetz, Matthias, Ministerio de Economía y Competitividad (España), European Commission, Australian Research Council, Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Agencia Nacional de Promoción Científica y Tecnológica (Argentina), Universidad Nacional de La Plata, National Aeronautics and Space Administration (US), University of Portsmouth, Knebe, A., Stoppacher, D., Prada, Francisco, Behrens, Christoph, Benson, A., Cora, S. A., Croton, Darren J., Padilla, N. D., Ruiz, A. N., Sinha, M., Stevens, A. R. H., Vega-Martínez, C. A., Behroozi, P., Gonzalez-Perez, Violeta, Gottlöber, S., Klypin, Anatoly, Yepes, G., Enke, H., Libeskind, N. I., Riebe, K., and Steinmetz, Matthias

Abstract

We present the public release of the MULTIDARK-GALAXIES: three distinct galaxy catalogues derived from one of the Planck cosmology MULTIDARK simulations (i.e. MDPL2, with a volume of (1 h Gpc) and mass resolution of 1.5 × 109 hM) by applying the semi-analytic models GALACTICUS, SAG, and SAGE to it. We compare the three models and their conformity with observational data for a selection of fundamental properties of galaxies like stellar mass function, star formation rate, cold gas fractions, and metallicities - noting that they sometimes perform differently reflecting model designs and calibrations. We have further selected galaxy subsamples of the catalogues by number densities in stellar mass, cold gas mass, and star formation rate in order to study the clustering statistics of galaxies. We show that despite different treatment of orphan galaxies, i.e. galaxies that lost their dark-matter host halo due to the finite-mass resolution of the N-body simulation or tidal stripping, the clustering signal is comparable, and reproduces the observations in all three models - in particular when selecting samples based upon stellar mass. Our catalogues provide a powerful tool to study galaxy formation within a volume comparable to those probed by ongoing and future photometric and redshift surveys. All model data consisting of a range of galaxy properties - including broad-band SDSS magnitudes - are publicly available. © 2018 The Author(s).

Published
2018

37. Safe 6th International Conference on Safety and Security Engineering

Author

Brebbia, C. A., Wessex, Insitute, Poljak, D., University of Split, Croatia, Axelrod, W., Delta Risk LLC, Usa, Fonseca, E., Polytechnic Institute of Braganca, Portugal, Holicky, M., Czech Technical University, Czech, Republic, Janszen, G., Politecnico di Milano, Italy, Labib, A., University of Portsmouth, Lombardi, M., University of Rome, 'La, Sapienza', Magaril, E. R., Ural Federal University, Russia, Miguez, M. G., Federal University of Rio de Janeiro, Brazil, Oreste, P., Politecnico di Torino, Perruzza, R., Laboratori Nazionali del Gran Sasso, E. C. Rada University of Trento, Italy, Reniers, G., Delft, Tu, Kuleuven, Uantwerpen, Belgium, Russo, F., University di Reggio Calabria, D. Santos Reyes, ICHI Research, Engineering, Mexico, Torretta, V., Insubria, University, Zyczkowski, M., Military University of Technology, and Poland

Published
2015

38. Galaxy clusters in the SDSS Stripe 82 based on photometric redshifts

Author

National Science Foundation (US), Department of Energy (US), University of Arizona, Brookhaven National Laboratory (US), Carnegie Mellon University, University of Florida, Harvard University, Instituto de Astrofísica de Canarias, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for extraterrestrial Physics, New Mexico State University, New York University, The Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, Yale University, Ministerio de Economía y Competitividad (España), Junta de Andalucía, Alfred P. Sloan Foundation, Durret, F., Adami, C., Bertin, E., Hao, J., Márquez, Isabel, Martinet, N., Maurogordato, S., Sauvaget, T., Scepi, N., Takey, A., Ulmer, M.P., National Science Foundation (US), Department of Energy (US), University of Arizona, Brookhaven National Laboratory (US), Carnegie Mellon University, University of Florida, Harvard University, Instituto de Astrofísica de Canarias, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for extraterrestrial Physics, New Mexico State University, New York University, The Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, Yale University, Ministerio de Economía y Competitividad (España), Junta de Andalucía, Alfred P. Sloan Foundation, Durret, F., Adami, C., Bertin, E., Hao, J., Márquez, Isabel, Martinet, N., Maurogordato, S., Sauvaget, T., Scepi, N., Takey, A., and Ulmer, M.P.

Abstract

© ESO 2015. Context. The discovery of new galaxy clusters is important for two reasons. First, clusters are interesting per se, since their detailed analysis allows us to understand how galaxies form and evolve in various environments and second, they play an important part in cosmology because their number as a function of redshift gives constraints on cosmological parameters. Aims. We have searched for galaxy clusters in the Stripe 82 region of the Sloan Digital Sky Survey, and analysed various properties of the cluster galaxies. Methods. Based on a recent photometric redshift (hereafter photo-z) galaxy catalogue, we built a cluster catalogue by applying the Adami & MAzure Cluster FInder (AMACFI). Extensive tests were made to fine-tune the AMACFI parameters and make the cluster detection as reliable as possible. The same method was applied to the Millennium simulation to estimate our detection efficiency and the approximate masses of the detected clusters. Considering all the cluster galaxies (i.e. within a 1 Mpc radius of the cluster to which they belong and with a photo-z diering by less than ±0.05 from that of the cluster), we stacked clusters in various redshift bins to derive colour-magnitude diagrams and galaxy luminosity functions (GLFs). For each galaxy brighter than Mr < - 19.0, we computed the disk and spheroid components by applying SExtractor, and by stacking clusters we determined how the disk-to-spheroid flux ratio varies with cluster redshift and mass. Results. We detected 3663 clusters in the redshift range 0.15 ≤ z ≤ 0.70, with estimated mean masses between ∼1013 and a few 1014 M⊙. We cross-matched our catalogue of candidate clusters with various catalogues extracted from optical and/or X-ray data. The percentages of redetected clusters are at most 40% because in all cases we detect relatively massive clusters, while other authors detect less massive structures. By stacking the cluster galaxies in various redshift

Published
2015

39. Self-similarity and universality of void density profiles in simulation and SDSS data

Author

Academy of Finland, European Research Council, Ministerio de Economía y Competitividad (España), Science and Technology Facilities Council (UK), University of Portsmouth, Nadathur, S., Hotchkiss, S., Diego, José María, Iliev, Ilian T., Gottlöber, Stefan, Watson, William A., Yepes, Gustavo, Academy of Finland, European Research Council, Ministerio de Economía y Competitividad (España), Science and Technology Facilities Council (UK), University of Portsmouth, Nadathur, S., Hotchkiss, S., Diego, José María, Iliev, Ilian T., Gottlöber, Stefan, Watson, William A., and Yepes, Gustavo

Abstract

The stacked density profile of cosmic voids in the galaxy distribution provides an important tool for the use of voids for precision cosmology. We study the density profiles of voids identified using the ZOBOV watershed transform algorithm in realistic mock luminous red galaxy (LRG) catalogues from the Jubilee simulation, as well as in void catalogues constructed from the SDSS LRG and Main Galaxy samples. We compare different methods for reconstructing density profiles scaled by the void radius and show that the most commonly used method based on counts in shells and simple averaging is statistically flawed as it underestimates the density in void interiors. We provide two alternative methods that do not suffer from this effect; one based on Voronoi tessellations is also easily able to account from artefacts due to finite survey boundaries and so is more suitable when comparing simulation data to observation. Using this method, we show that the most robust voids in simulation are exactly self-similar, meaning that their average rescaled profile does not depend on the void size. Within the range of our simulation, we also find no redshift dependence of the mean profile. Comparison of the profiles obtained from simulated and real voids shows an excellent match. The mean profiles of real voids also show a universal behaviour over a wide range of galaxy luminosities, number densities and redshifts. This points to a fundamental property of the voids found by the watershed algorithm, which can be exploited in future studies of voids.

Published
2015

41. Microbe-surface interactions in biofouling and biocorrosion processes

Author

Iwona B. Beech; University of Portsmouth, Portsmouth, UK, Jan A. Sunner; Montana State University, Bozeman, Montana, USA, Kenzo Hiraoka; Clean Energy Research Center, University of Yamanashi, Japan, Iwona B. Beech; University of Portsmouth, Portsmouth, UK, Jan A. Sunner; Montana State University, Bozeman, Montana, USA, and Kenzo Hiraoka; Clean Energy Research Center, University of Yamanashi, Japan

Abstract

The presence of microorganisms on material surfaces can have a profound effect on materials performance. Surface-associated microbial growth, i.e. a biofilm, is known to instigate biofouling. The presence of biofilms may promote interfacial physico-chemical reactions that are not favored under abiotic conditions. In the case of metallic materials, undesirable changes in material properties due to a biofilm (or a biofouling layer) are referred to as biocorrosion or microbially influenced corrosion (MIC). Biofouling and biocorrosion occur in aquatic and terrestrial habitats varying in nutrient content, temperature, pressure and pH. Interfacial chemistry in such systems reflects a wide variety of physiological activities carried out by diverse microbial populations thriving within biofilms. Biocorrosion can be viewed as a consequence of coupled biological and abiotic electron-transfer reactions, i.e. redox reactions of metals, enabled by microbial ecology. Microbially produced extracellular polymeric substances (EPS), which comprise different macromolecules, mediate initial cell adhesion to the material surface and constitute a biofilm matrix. Despite their unquestionable importance in biofilm development, the extent to which EPS contribute to biocorrosion is not well-understood. This review offers a current perspective on material/microbe interactions pertinent to biocorrosion and biofouling, with EPS as a focal point, while emphasizing the role atomic force spectroscopy and mass spectrometry techniques can play in elucidating such interactions. [Int Microbiol 2005; 8(3):157-168]

Published
2010

42. Separación selectiva de metales pesados con un reactor de cátodo rotatorio

Author

Universidad de Alicante. Departamento de Química Física, University of Portsmouth. Department of Chemistry, González García, José, Montiel, Vicente, Aldaz Riera, Antonio, Walsh, Frank C., Universidad de Alicante. Departamento de Química Física, University of Portsmouth. Department of Chemistry, González García, José, Montiel, Vicente, Aldaz Riera, Antonio, and Walsh, Frank C.

Published
2008

43. Competency Management in the Public Sector : European Variations on a Theme

Author

Horton, Sylvia, Hondeghem, Annie, Farnham, David, European Group of Public Administration, University of Portsmouth, Instituut voor de Overheid, Horton, Sylvia, Hondeghem, Annie, Farnham, David, European Group of Public Administration, University of Portsmouth, and Instituut voor de Overheid

Subjects
Civil service--European Union countries--Personnel management--Case studies, Management by objectives--European Union countries--Case studies, Administrative agencies--European Union countries--Personnel management--Case studies, Strategic planning--European Union countries--Case studies
Abstract

'University of Portsmouth; Instituut voor de Overheid.'

Published
2002

46. From the Union Française (1946) to the Union Européenne (1992): the French exception in debate

Author

La France exceptionnelle ?Comparisons and intercultural perspectives (6-8 septembre 2001: University of Portsmouth), Dimier, Véronique, La France exceptionnelle ?Comparisons and intercultural perspectives (6-8 septembre 2001: University of Portsmouth), and Dimier, Véronique

Abstract

Annual conference of the Association for the study of modern and contemporary France, info:eu-repo/semantics/nonPublished

47. From the Union Française (1946) to the Union Européenne (1992): the French exception in debate

Author

La France exceptionnelle ?Comparisons and intercultural perspectives (6-8 septembre 2001: University of Portsmouth), Dimier, Véronique, La France exceptionnelle ?Comparisons and intercultural perspectives (6-8 septembre 2001: University of Portsmouth), and Dimier, Véronique

Abstract

Annual conference of the Association for the study of modern and contemporary France, info:eu-repo/semantics/nonPublished

50. Tolerant and intolerant macaques show different levels of structural complexity in their vocal communication

Author

Rebout, Nancy, De Marco, Arianna, Lone, Jean-Christophe, Sanna, Andrea, Cozzolino, Roberto, Micheletta, Jérôme, Sterck, Elisabeth H M, Langermans, Jan A M, Lemasson, Alban, Thierry, Bernard, Sub Animal Ecology, AISS LAS/3'R Centre ULS, Animal Ecology, Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Fondazione Ethoikos, Parco Faunistico di Piano dell'Abatino, Department of Psychology, University of Portsmouth, Portsmouth, England, UK, Macaca Nigra Project, Tangkoko Reserve, Department of Biology, Animal Ecology, Utrecht University [Utrecht], Animal Science Department, Biomedical Primate Research Center, Department Population Health Sciences, Ethologie animale et humaine (EthoS), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), The work was supported by the Fondazione Ethoikos (Radicondoli), the Fondation des Treilles (Tourtour), and the Department of Ecology, Physiology and Ethology (Strasbourg). Data collection in rhesus macaques was supported by an Eole Scholarship granted by the French-Dutch Network. Data collection in Japanese macaques was supported by the Japan Society for the Promotion of Science., Sub Animal Ecology, AISS LAS/3'R Centre ULS, Animal Ecology, Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre for comparative and evolutionary psychology, University of Portsmouth, Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Normandie Université (NU)-Normandie Université (NU)-Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]

Subjects
0106 biological sciences, Vocal communication, primates, [SDV]Life Sciences [q-bio], Biology, 010603 evolutionary biology, 01 natural sciences, General Biochemistry, Genetics and Molecular Biology, Structural complexity, [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology, Agonistic behaviour, Animals, 0501 psychology and cognitive sciences, Behaviour, 050102 behavioral science & comparative psychology, social system, Social Behavior, acoustics, social style, General Environmental Science, Call duration, General Immunology and Microbiology, [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, Communication, [SCCO.NEUR]Cognitive science/Neuroscience, [SDV.BA]Life Sciences [q-bio]/Animal biology, 05 social sciences, [SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, Social complexity, General Medicine, Macaca mulatta, Social relation, Social system, comparison, Vocalization, Animal, General Agricultural and Biological Sciences, Cognitive psychology, cluster analysis
Abstract

International audience; We tested the social complexity hypothesis which posits that animals living in complex social environments should use complex communication systems. We focused on two components of vocal complexity: diversity (number of categories of calls) and flexibility (degree of gradation between categories of calls). We compared the acoustic structure of vocal signals in groups of macaques belonging to four species with varying levels of uncertainty (i.e. complexity) in social tolerance (the higher the degree of tolerance, the higher the degree of uncertainty): two intolerant species, Japanese and rhesus macaques, and two tolerant species, Tonkean and crested macaques. We recorded the vocalizations emitted by adult females in affiliative, agonistic and neutral contexts. We analysed several acoustic variables: call duration, entropy, time and frequency energy quantiles. The results showed that tolerant macaques displayed higher levels of vocal diversity and flexibility than intolerant macaques in situations with a greater number of options and consequences, i.e. in agonistic and affiliative contexts. We found no significant differences between tolerant and intolerant macaques in the neutral context where individuals are not directly involved in social interaction. This shows that species experiencing more uncertain social interactions displayed greater vocal diversity and flexibility, which supports the social complexity hypothesis.

Published
2020

Catalog

Books, media, physical & digital resources
See catalog results