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Rapid Fluvial Remobilization Of Sediments Deposited By The 2021 Chamoli Disaster, Indian Himalaya, Matthew J. Westoby, Stuart A. Dunning, Jonathan L. Carrivick, Thomas J. Coulthard, Kalachand Sain, Amit Kumar, Etienne Berthier, Umesh K. Haritashya, David E. Shean, Mohd Farooq Azam, Kavita Upadhyay, Michele Koppes, Harley R. Mccourt, Dan H. Shugar Jul 2023

Rapid Fluvial Remobilization Of Sediments Deposited By The 2021 Chamoli Disaster, Indian Himalaya, Matthew J. Westoby, Stuart A. Dunning, Jonathan L. Carrivick, Thomas J. Coulthard, Kalachand Sain, Amit Kumar, Etienne Berthier, Umesh K. Haritashya, David E. Shean, Mohd Farooq Azam, Kavita Upadhyay, Michele Koppes, Harley R. Mccourt, Dan H. Shugar

School of Geography, Earth and Environmental Sciences

High-magnitude mass flows can have a pervasive geomorphological legacy, yet the short-term response of valley floors to such intense disturbances is poorly known and poses significant observational challenges in unstable landscapes. We combined satellite remote sensing, numerical modeling, and field observations to reconstruct the short-term geomorphological response of river channels directly affected by the 7 February 2021 ice-rock avalanche−debris flow in Chamoli district, Uttarakhand, India. The flow deposited 10.4 ± 1.6 Mm3 of sediment within the first 30 km and in places reset the channel floor to a zero-state condition, requiring complete fluvial re-establishment. In the 12 months post-event, 7.0 …

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Collaborative Leadership To Support Sustainability In Practice For Dietitians As Allied Health Professionals, Clare Pettinger, Smita Tripathi, Benji Shoker, Gary Hodge Jul 2023

Collaborative Leadership To Support Sustainability In Practice For Dietitians As Allied Health Professionals, Clare Pettinger, Smita Tripathi, Benji Shoker, Gary Hodge

School of Health Professions

Background Allied health professionals (AHPs) have an important role to support the Greener National Health Service (NHS) agenda. Dietitians are AHPs who are already demonstrating strong influence on food sustainability advocacy. There is call for more collaboration across the health professions to optimise “green” leadership in the pursuit of planetary health. The present study aimed to investigate the perceived role of AHP leaders and future leaders around more sustainable healthcare practices. Methods A mixed methods approach using audio-recorded semi-structured interviews with strategic AHP leaders (n = 11) and focus groups with student AHPs (n = 2). Standardised open-ended questions considered …

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May Microbial Ecological Baseline Exist In Continental Groundwater?, Sining Zhong, Shungui Zhou, S Liu, Jiawen Wang, Chenyuan Dang, Qian Chen, Jinyun Hu, Shanqing Yang, Chunfang Deng, Wenpeng Li, J Liu, Alistair G.L. Borthwick, Jinren Ni Jul 2023

May Microbial Ecological Baseline Exist In Continental Groundwater?, Sining Zhong, Shungui Zhou, S Liu, Jiawen Wang, Chenyuan Dang, Qian Chen, Jinyun Hu, Shanqing Yang, Chunfang Deng, Wenpeng Li, J Liu, Alistair G.L. Borthwick, Jinren Ni

School of Engineering, Computing and Mathematics

Background Microbes constitute almost the entire biological community in subsurface groundwater and play an important role in ecological evolution and global biogeochemical cycles. Ecological baseline as a fundamental reference with less human interference has been investigated in surface ecosystems such as soils, rivers, and ocean, but the existence of groundwater microbial ecological baseline (GMEB) is still an open question so far. Results Based on high-throughput sequencing information derived from national monitoring of 733 newly constructed wells, we find that bacterial communities in pristine groundwater exhibit a significant lateral diversity gradient and gradually approach the topsoil microbial latitudinal diversity gradient with …

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Green Growth And Competitiveness In Eu Climate Policy: Paradigm Shift Or 'Plus De La Même Chose'?, O Fitch-Roy, I Bailey Jul 2023

Green Growth And Competitiveness In Eu Climate Policy: Paradigm Shift Or 'Plus De La Même Chose'?, O Fitch-Roy, I Bailey

School of Geography, Earth and Environmental Sciences

No abstract provided.

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Constrained Tropical Land Temperature-Precipitation Sensitivity Reveals Decreasing Evapotranspiration And Faster Vegetation Greening In Cmip6 Projections, Boyuan Zhu, Yongzhou Cheng, Xuyue Hu, Yuanfang Chai, Wouter R. Berghuijs, Alistair G.L. Borthwick, Louise Slater Jul 2023

Constrained Tropical Land Temperature-Precipitation Sensitivity Reveals Decreasing Evapotranspiration And Faster Vegetation Greening In Cmip6 Projections, Boyuan Zhu, Yongzhou Cheng, Xuyue Hu, Yuanfang Chai, Wouter R. Berghuijs, Alistair G.L. Borthwick, Louise Slater

School of Engineering, Computing and Mathematics

Over the tropical land surface, accurate estimates of future changes in temperature, precipitation and evapotranspiration are crucial for ecological sustainability, but remain highly uncertain. Here we develop a series of emergent constraints (ECs) by using historical and future outputs from the Coupled Model Inter-comparison Project Phase 6 (CMIP6) Earth System Models under the four basic Shared Socio-economic Pathway scenarios (SSP126, SSP245, SSP370, and SSP585). Results show that the temperature sensitivity to precipitation during 2015–2100, which varies substantially in the original CMIP6 outputs, becomes systematically negative across SSPs after application of the EC, with absolute values between −1.10 °C mm−1 day …

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Economic Performance Amongst English Seaside Towns, Sheela Agarwal, Steven Jakes, Sanzidur Rahman, Stephen J. Page Jul 2023

Economic Performance Amongst English Seaside Towns, Sheela Agarwal, Steven Jakes, Sanzidur Rahman, Stephen J. Page

Plymouth Business School

Within urban and tourism studies, although much research has focused on uneven city prosperity and competitiveness, little is known about factors influencing seaside town economic performance. We adopt a place-based approach to understand its determinants amongst 58 of England’s largest seaside towns drawing on a bespoke database. Through Partial Least Square analysis, Spearman’s Rank Correlation and general linear regression modelling for panel data with random effects, we identify the ‘leaders’ and ‘laggers’ along with a set of associated socio-economic characteristics. These insights enhance understanding of how and why economic performance differs amongst these towns. We highlight implications for addressing such …

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Iron Isotope Signals: Use And Limitations In Natural Marine Sediments, Susann Henkel, Male Köster, Bo Liu, Michael Staubwasser, Anette Meixner, Simone Kasemann, Hayley Manners, Verena Heuer, Yuki Morono, Fumio Inagaki, Sabine Kasten Jul 2023

Iron Isotope Signals: Use And Limitations In Natural Marine Sediments, Susann Henkel, Male Köster, Bo Liu, Michael Staubwasser, Anette Meixner, Simone Kasemann, Hayley Manners, Verena Heuer, Yuki Morono, Fumio Inagaki, Sabine Kasten

School of Geography, Earth and Environmental Sciences

No abstract provided.

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Phytoplankton Responses To Dust Addition In The Femn Co-Limited Eastern Pacific Sub-Antarctic Differ By Source Region, Neil J. Wyatt, Antony Birchill, Simon Ussher, Angela Milne, Heather A. Bouman, Elizabeth Shoenfelt Troein, Katsiaryna Pabortsava, Alan Wright, Oliver Flanagan, Thomas S. Bibby, Adrian Martin, Cm Moore Jul 2023

Phytoplankton Responses To Dust Addition In The Femn Co-Limited Eastern Pacific Sub-Antarctic Differ By Source Region, Neil J. Wyatt, Antony Birchill, Simon Ussher, Angela Milne, Heather A. Bouman, Elizabeth Shoenfelt Troein, Katsiaryna Pabortsava, Alan Wright, Oliver Flanagan, Thomas S. Bibby, Adrian Martin, Cm Moore

School of Geography, Earth and Environmental Sciences

The seasonal availability of light and micronutrients strongly regulates productivity in the Southern Ocean, restricting biological utilization of macronutrients and CO2 drawdown. Mineral dust flux is a key conduit for micronutrients to the Southern Ocean and a critical mediator of multimillennial-scale atmospheric CO2 oscillations. While the role of dust-borne iron (Fe) in Southern Ocean biogeochemistry has been examined in detail, manganese (Mn) availability is also emerging as a potential driver of past, present, and future Southern Ocean biogeochemistry. Here, we present results from fifteen bioassay experiments along a north–south transect in the undersampled eastern Pacific sub-Antarctic zone. In addition to …

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Constraining The Contribution Of The Antarctic Ice Sheet To Last Interglacial Sea-Level, Robert L. Barnett, Jacqueline Austermann, Blake Dyer, Matt W. Telfer, Natasha L.M. Barlow, Sarah J. Boulton, Andrew S. Carr, Roger C. Creel Jul 2023

Constraining The Contribution Of The Antarctic Ice Sheet To Last Interglacial Sea-Level, Robert L. Barnett, Jacqueline Austermann, Blake Dyer, Matt W. Telfer, Natasha L.M. Barlow, Sarah J. Boulton, Andrew S. Carr, Roger C. Creel

School of Geography, Earth and Environmental Sciences

Polar temperatures during the Last Interglacial [LIG; ~129 to 116 thousand years (ka)] were warmer than today, making this time period an important testing ground to better understand how ice sheets respond to warming. However, it remains debated how much and when the Antarctic and Greenland ice sheets changed during this period. Here, we present a combination of new and existing absolutely dated LIG sea-level observations from Britain, France, and Denmark. Because of glacial isostatic adjustment (GIA), the LIG Greenland ice melt contribution to sea-level change in this region is small, which allows us to constrain Antarctic ice change. We …

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Peat Fires And The Unknown Risk Of Legacy Metal And Metalloid Pollution, Colin P.R. Mccarter, Gareth D. Clay, Sophie L. Wilkinson, Susan Page, Emma L. Shuttleworth, Scott J. Davidson, Muh Taufik, Gabriel Sigmund, James M. Waddington Jul 2023

Peat Fires And The Unknown Risk Of Legacy Metal And Metalloid Pollution, Colin P.R. Mccarter, Gareth D. Clay, Sophie L. Wilkinson, Susan Page, Emma L. Shuttleworth, Scott J. Davidson, Muh Taufik, Gabriel Sigmund, James M. Waddington

School of Geography, Earth and Environmental Sciences

Introduction. Peatlands have persisted for millennia, acting as globally-important sinks of atmospheric carbon dioxide (Yu 2012) and regionally-important role sinks of pollutants, such as lead, arsenic, or mercury (toxic metals and metalloids, TMMs) (Bindler 2006). The role peatlands play in atmospheric carbon sequestration often overshadows their role in storing pollutants despite, for example, peat mercury accumulation rates increasing 60–130× relative to pre-industrial rates (Bindler 2006). Peatlands sustain their carbon and TMM sink persistence through a suite of ecohydrological feedbacks and plant traits (Souter and Watmough 2016, McCarter et al 2020). However, the interaction of climate change, land-use change and wildfire …

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Uniquely Low Stable Iron Isotopic Signatures In Deep Marine Sediments Caused By Rayleigh Distillation, Male Köster, Michael Staubwasser, Anette Meixner, Simone A. Kasemann, Hayley R. Manners, Yuki Morono, Fumio Inagaki, Verena B. Heuer, Sabine Kasten, Susann Henkel Jun 2023

Uniquely Low Stable Iron Isotopic Signatures In Deep Marine Sediments Caused By Rayleigh Distillation, Male Köster, Michael Staubwasser, Anette Meixner, Simone A. Kasemann, Hayley R. Manners, Yuki Morono, Fumio Inagaki, Verena B. Heuer, Sabine Kasten, Susann Henkel

School of Geography, Earth and Environmental Sciences

Dissimilatory iron reduction (DIR) is suggested to be one of the earliest forms of microbial respiration. It plays an important role in the biogeochemical cycling of iron in modern and ancient sediments. Since microbial iron cycling is typically accompanied by iron isotope fractionation, stable iron isotopes are used as tracer for biological activity. Here we present iron isotope data for dissolved and sequentially extracted sedimentary iron pools from deep and hot subseafloor sediments retrieved in the Nankai Trough off Japan. Dissolved iron (Fe(II)aq) is isotopically light throughout the ferruginous sediment interval but some samples have exceptionally light isotope values. Such …

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England’S Early Years Foundation Stage (Eyfs) Framework: Towards A Minor Literature, Claire Walsh Jun 2023

England’S Early Years Foundation Stage (Eyfs) Framework: Towards A Minor Literature, Claire Walsh

School of Law, Humanities and Social Sciences

In the mid 1970s, the philosopher Gilles Deleuze and psychoanalyst Felix Guattari radically conceptualised the novelist Kafka in terms of marginal subjectivity. Their book, “Kafka: towards a minor literature” (1975/1986) was a consideration of minor thought as “an agent of transformative experimentation and collective awareness” (El Moncef, 2020) within a major language. Considering such agency, this paper, nearly fifty years on from Kafka, looks to extend our gaze beyond Deleuze and Guattari’s original theory towards ‘the people [who] are missing’ (Deleuze, 1989) - the minor readers. Evolving the concept of the marginal, the paper considers the major language of statutory …

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Conceptualizing And Operationalizing Community Resilience: A Scoping Review Of The Social And Health Sciences Literature, Rebecca J. Phillips, Oliver W.J. Beer, Arati Maleku Jun 2023

Conceptualizing And Operationalizing Community Resilience: A Scoping Review Of The Social And Health Sciences Literature, Rebecca J. Phillips, Oliver W.J. Beer, Arati Maleku

School of Health Professions

No abstract provided.

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Multi-Scale Habitat Overlap In Two Broad-Ranged Sympatric Neotropical Forest Eagles Reveals Shared Environmental Space And Habitat Use, Luke J. Sutton, A David, Miguel Franco, R Gomes F Bittioli, Christopher J.W. Mcclure, Everton B.P. Miranda, F. Hernán Vargas, F. Hernán Vargas, Robert Puschendorf Jun 2023

Multi-Scale Habitat Overlap In Two Broad-Ranged Sympatric Neotropical Forest Eagles Reveals Shared Environmental Space And Habitat Use, Luke J. Sutton, A David, Miguel Franco, R Gomes F Bittioli, Christopher J.W. Mcclure, Everton B.P. Miranda, F. Hernán Vargas, F. Hernán Vargas, Robert Puschendorf

School of Biological and Marine Sciences

Quantifying resource partitioning between co-occurring species can provide insight into processes facilitating coexistence by closely-related species, a fundamental question in ecology. We tested whether the habitat requirements of two closely-related Neotropical forest eagles, the Crested Eagle (Morphnus guianensis) and Harpy Eagle (Harpia harpyja), differ at fine and coarse resolutions across their shared geographic range. Using landcover and topographic covariates, we first quantified potential resource overlap using higher resolution (30 arc-sec, ~1-km2 data) generalized linear models (GLMs), and second using coarser-grain (2.5 arc-min, ~4.5-km2 data) environmental ordination to capture the potential effect of scale on habitat overlap. The distribution of both …

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Estimation Of Eruption Source Parameters For The 2021 La Soufrière Eruption (St. Vincent): Implications For Quantification Of Eruption Magnitude On Volcanic Islands, Robert Constantinescu, J. T. White, C. Connor, P. Cole, K. Fontijn, J. Barclay, R. Robertson Jun 2023

Estimation Of Eruption Source Parameters For The 2021 La Soufrière Eruption (St. Vincent): Implications For Quantification Of Eruption Magnitude On Volcanic Islands, Robert Constantinescu, J. T. White, C. Connor, P. Cole, K. Fontijn, J. Barclay, R. Robertson

School of Geography, Earth and Environmental Sciences

Eruption source parameters (ESPs) used to characterize explosive eruptions are estimated from tephra deposit data using different models (statistical or numerical) and inversion approaches. The ESPs thus derived are subject to substantial uncertainties when the bulk of the tephra deposit, including information about its full spatial extent and spatial variation in grain size distribution is missing due to geographic and environmental conditions. We use an advection-diffusion model coupled with a Bayesian inversion and uncertainty quantification algorithm to investigate how ESPs can be robustly estimated given such conditions. The 2021 eruption of La Soufrière Volcano (St. Vincent and the Grenadines) is …

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Patterns Of Species Richness And Turnover In Endemic Amphibians Of The Guineo-Congolian Rainforest., Lotanna M. Nneji, Josué A.R. Azevedo, Oyetola O. Oyebanji, Liang Ma, Paul R. Elsen, Gabriel Salako, Robert Puschendorf, Robert M. Pringle Jun 2023

Patterns Of Species Richness And Turnover In Endemic Amphibians Of The Guineo-Congolian Rainforest., Lotanna M. Nneji, Josué A.R. Azevedo, Oyetola O. Oyebanji, Liang Ma, Paul R. Elsen, Gabriel Salako, Robert Puschendorf, Robert M. Pringle

School of Biological and Marine Sciences

Aim: The African Guineo-Congolian (GC) region is a global biodiversity hotspot with high species endemism, bioclimatic heterogeneity, complex landscape features, and multiple biogeographic barriers. Bioclimatic and geographic variables influence global patterns of species richness and endemism, but their relative importance varies across taxa and regions and is poorly understood for many faunas. Here, we test the hypoth-esis that turnover in endemic amphibians of the GC biodiversity hotspot is influenced mainly by the geographic distance between grid cells and secondarily by rainfall- and temperature- related variables.Location: West and Central Africa.Major Taxa Studied: Amphibians.Methods: We compiled species-occurrence records via field sampling, online …

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Of Ice Cream, Potatoes, And Kimono-Clad Japanese Women: Forgetting And Remembering The Japanese Racialization Of Lethbridge’S Sensuous Geographies, D Aoki, C Adams Jun 2023

Of Ice Cream, Potatoes, And Kimono-Clad Japanese Women: Forgetting And Remembering The Japanese Racialization Of Lethbridge’S Sensuous Geographies, D Aoki, C Adams

School of Law, Humanities and Social Sciences

No abstract provided.

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Thermally-Induced Clumped Isotope Resetting In Belemnite And Optical Calcites: Towards Material-Specific Kinetics, Nathan Looser, Paul Petschnig, Jordon D. Hemingway, Alvaro Fernandez, Grafulha L Morales, Alberto Perez-Huerta, Madeleine L. Vickers, Gregory D. Price, Max W. Schmidt, Stefano M. Bernasconi Jun 2023

Thermally-Induced Clumped Isotope Resetting In Belemnite And Optical Calcites: Towards Material-Specific Kinetics, Nathan Looser, Paul Petschnig, Jordon D. Hemingway, Alvaro Fernandez, Grafulha L Morales, Alberto Perez-Huerta, Madeleine L. Vickers, Gregory D. Price, Max W. Schmidt, Stefano M. Bernasconi

School of Geography, Earth and Environmental Sciences

The application of carbonate clumped isotope (Δ47) thermometry in deep-time is often limited by modification of the original temperature signal by thermal resetting. New modeling approaches to estimate the initial isotopic composition of partially reset calcites and maximal burial temperatures, however, open promising avenues in temperature reconstruction. Such approaches strongly depend on laboratory-derived kinetic parameters of calcite materials, which may differ in their microstructure, water content and distribution, and minor and trace element composition, and thus may have different resetting kinetics. The rostra of belemnites, an extinct group of mollusks with a wide temporal and spatial occurrence in the Mesozoic, …

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Stakeholder Alliances Are Essential To Reduce The Scourge Of Plastic Pollution, Rs Lampitt, S Fletcher, M Cole, A Kloker, S Krause, F O’Hara, P Ryde, M Saha, A Voronkova, A Whyle May 2023

Stakeholder Alliances Are Essential To Reduce The Scourge Of Plastic Pollution, Rs Lampitt, S Fletcher, M Cole, A Kloker, S Krause, F O’Hara, P Ryde, M Saha, A Voronkova, A Whyle

School of Psychology

Progress to reduce plastic pollution has been painfully slow and the consequent damage to the natural environment and to human health is likely to increase further. This has been because the views and ways of working of four distinct stakeholder communities are not sufficiently well integrated. (1) Scientists, (2) industry, (3) society at large and (4) those making policy and legislation must in future find ways to work together.

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A Standardised Ecosystem Services Framework For The Deep Sea, Giulia La Bianca, Sian Rees, Martin J. Attrill, Amanda T. Lombard, Kirsty A. Mcquaid, Holly J. Niner, Henk Van Rein, Kerry J. Sink, Kerry L. Howell May 2023

A Standardised Ecosystem Services Framework For The Deep Sea, Giulia La Bianca, Sian Rees, Martin J. Attrill, Amanda T. Lombard, Kirsty A. Mcquaid, Holly J. Niner, Henk Van Rein, Kerry J. Sink, Kerry L. Howell

School of Biological and Marine Sciences

Despite its remoteness, human activity has impacted the deep sea and changes to the structure and function of deep-sea ecosystems are already noticeable. In terrestrial and shallow water marine environments, demonstrating how ecosystems support human well-being has been instrumental in setting policy and management objectives for sustainable resource use. Foundational to this approach is a framework of ecosystem service (ES) classification and a synthesis of the knowledge base, which can then be used to structure decision-support tools such as ecosystem accounts or Environmental Impact Assessments. At present, no such framework exists for the deep sea. There is thus an urgent …

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Ocean Circulation And Biological Processes Drive Seasonal Variations Of Dissolved Al, Cd, Ni, Cu, And Zn On The Northeast Atlantic Continental Margin, Xue Gang Chen, Dagmara Rusiecka, Martha Gledhill, Angela Milne, Amber L. Annett, Antony J. Birchill, Maeve C. Lohan, Simon Ussher, E. Malcolm S. Woodward, Eric P. Achterberg May 2023

Ocean Circulation And Biological Processes Drive Seasonal Variations Of Dissolved Al, Cd, Ni, Cu, And Zn On The Northeast Atlantic Continental Margin, Xue Gang Chen, Dagmara Rusiecka, Martha Gledhill, Angela Milne, Amber L. Annett, Antony J. Birchill, Maeve C. Lohan, Simon Ussher, E. Malcolm S. Woodward, Eric P. Achterberg

School of Geography, Earth and Environmental Sciences

Nutrients and nutrient-like dissolved trace metals (dTMs) are essential for the functioning of marine organisms and therefore form an important part of ocean biogeochemical cycles. Here, we report on the seasonal distributions of dissolved zinc (dZn), nickel (dNi), copper (dCu), cadmium (dCd), aluminum (dAl), and nutrients on the Northeast Atlantic continental margin (Celtic Sea), which is representative for temperate shelf seas globally. Variations in surface water dTM and nutrient concentrations were mainly regulated by seasonal changes in biological processes. The stoichiometry of dTMs (especially for dCu and dZn) and nutrients on the continental shelf was additionally affected by fluvial inputs. …

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Educational Studies And Educational Practice: A Necessary Engagement, Jim Hordern May 2023

Educational Studies And Educational Practice: A Necessary Engagement, Jim Hordern

Plymouth Institute of Education

This paper assesses prospects for the relationship between educational studies and educational practice, with reference to the current institutional and policy context in England. Drawing on the sociology of educational knowledge and practice, it is argued that educational studies can be conceptualised in contrasting ways, by considering internal structures, external relations and how disciplinary problematics are defined, but also by how educational practice is portrayed. To develop the analysis, Bernstein’s work on knowledge structures and academic and professional discourses is articulated with philosophical work that distinguishes between different conceptualisations of practice prevalent in the humanities and social sciences. This enables …

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The Performance Of Major Airports In The Europe, North America And Asia, Jae Woo Park, Saeyeon Roh, Hyunmi Jang, Young Joon Seo May 2023

The Performance Of Major Airports In The Europe, North America And Asia, Jae Woo Park, Saeyeon Roh, Hyunmi Jang, Young Joon Seo

Plymouth Business School

Purpose This study aims to provide a meaningful comparison of airports’ performance and better understand the differences observed in the analysed airport performance by presenting a model to analyse the relationship between operational and financial performance and airport characteristics. Design/methodology/approach This study uses a quantitative analysis approach. The Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) and entropy weight were utilised to analyse 17 airports in three Airports Council International regions: Asia, Europe and North America. Through operational and financial factors, these sample airports identified the most efficiently operated airports from 2016 to 2019. Findings Overall, Asian airports …

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Distributed Stress Fluidisation: Insights Into The Propagation Mechanisms Of The Abona Volcanic Debris Avalanche (Tenerife) Through A Novel Method For Indurated Deposit Sedimentological Analysis, Symeon Makris, Matteo Roverato, Pablo Dávila-Harris, Paul Cole, Irene Manzella May 2023

Distributed Stress Fluidisation: Insights Into The Propagation Mechanisms Of The Abona Volcanic Debris Avalanche (Tenerife) Through A Novel Method For Indurated Deposit Sedimentological Analysis, Symeon Makris, Matteo Roverato, Pablo Dávila-Harris, Paul Cole, Irene Manzella

School of Geography, Earth and Environmental Sciences

Introduction: Volcanic debris avalanches mobilise large volumes and achieve long runouts with high destructive potential. However, the propagation processes that generate them are not currently explained by theoretical or numerical models, which are unable to represent deposit observations. Evaluation of the dynamics represented in deposits is therefore vital for constraining su ch models. The Abona volcanic debris avalanche deposit is located on the southern flank of the island of Tenerife, Spain. The deposit exhibits universal microfracturing and cataclasis. Fluidal features such as fluidal mixing of lithological units and diffuse boundaries, and mixed matrix are observed throughout the deposit. Methods: Field …

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Meltwater Layer Dynamics In A Central Arctic Lead: Effects Of Lead Width, Re-Freezing, And Mixing During Late Summer, Daiki Nomura, Yusuke Kawaguchi, Alison L. Webb, Yuhong Li, Manuel Dall'osto, Katrin Schmidt, Elise S. Droste, Emelia J. Chamberlain, Nikolai Kolabutin, Egor Shimanchuk, Mario Hoppmann, Michael R. Gallagher, Hanno Meyer, Moein Mellat, Dorothea Bauch, Carolina Gabarró, Madison M. Smith, Jun Inoue, Ellen Damm, Bruno Delille May 2023

Meltwater Layer Dynamics In A Central Arctic Lead: Effects Of Lead Width, Re-Freezing, And Mixing During Late Summer, Daiki Nomura, Yusuke Kawaguchi, Alison L. Webb, Yuhong Li, Manuel Dall'osto, Katrin Schmidt, Elise S. Droste, Emelia J. Chamberlain, Nikolai Kolabutin, Egor Shimanchuk, Mario Hoppmann, Michael R. Gallagher, Hanno Meyer, Moein Mellat, Dorothea Bauch, Carolina Gabarró, Madison M. Smith, Jun Inoue, Ellen Damm, Bruno Delille

School of Geography, Earth and Environmental Sciences

Leads play an important role in the exchange of heat, gases, vapour, and particles between seawater and the atmosphere in ice-covered polar oceans. In summer, these processes can be modified significantly by the formation of a meltwater layer at the surface, yet we know little about the dynamics of meltwater layer formation and persistence. During the drift campaign of the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC), we examined how variation in lead width, re-freezing, and mixing events affected the vertical structure of lead waters during late summer in the central Arctic. At the beginning of the …

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Assessment Of Urban Physical Features On Summer Thermal Perceptions Using The Local Climate Zone Classification, Cho Kwong Charlie Lam, Salman Shooshtarian, Inji Kenawy May 2023

Assessment Of Urban Physical Features On Summer Thermal Perceptions Using The Local Climate Zone Classification, Cho Kwong Charlie Lam, Salman Shooshtarian, Inji Kenawy

School of Geography, Earth and Environmental Sciences

Urbanisation has changed local meteorological conditions worldwide. The physical features of outdoor spaces are critical in determining outdoor thermal comfort through changes in meteorological parameters. Past studies comparing subjective thermal perception between local climate zones (LCZ) were mainly conducted in humid subtropical regions. This study aims to investigate this relationship using outdoor thermal comfort survey data collected in three research projects in Melbourne, Australia (temperate oceanic climate) (n = 4717). The physical features investigated included the sky view factor (SVF) and LCZ classification. During Melbourne's summer, people preferred a higher PET value than neutral PET across all LCZs. People in …

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Loneliness And Social Networks Of Older Adults In Rural Communities: A Narrative Synthesis Systematic Review, Basharat Hussain, Mahrukh Mirza, Rebecca Baines, Lorna Burns, Sebastian Stevens, Sheena Asthana, Arunangsu Chatterjee May 2023

Loneliness And Social Networks Of Older Adults In Rural Communities: A Narrative Synthesis Systematic Review, Basharat Hussain, Mahrukh Mirza, Rebecca Baines, Lorna Burns, Sebastian Stevens, Sheena Asthana, Arunangsu Chatterjee

Peninsula Medical School

Introduction: Loneliness has significant impacts on the health of older adults. Social networks help to improve psychosocial and quality of life outcomes among older adults. A fifth of older adults live in rural communities, where geographic isolation poses challenges to health. The dynamics of social networks of older adults in rural communities has not been explored. Objective: To synthesize the literature related to loneliness and social networks of older adults in rural settings. Methods: A mixed-methods systematic review was conducted through searching six bibliographic databases to retrieve peer-reviewed literature with no time limits. We performed a methodological assessment of each …

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Toxicokinetics And Bioaccumulation Of Silver Sulfide Nanoparticles In Benthic Invertebrates In An Indoor Stream Mesocosm, Pv Silva, Arr Silva, Nathaniel J. Clark, Joanne Vassallo, Marta Baccaro, Neja Medvešček, Magdalena Grgić, Abel Ferreira, Martí Busquets-Fité, Kerstin Jurkschat, Anastasios G. Papadiamantis, Victor Puntes, Iseult Lynch, Claus Svendsen, Den Brink Nw Van, Richard D. Handy, Gestel Cam Van, Susana Loureiro May 2023

Toxicokinetics And Bioaccumulation Of Silver Sulfide Nanoparticles In Benthic Invertebrates In An Indoor Stream Mesocosm, Pv Silva, Arr Silva, Nathaniel J. Clark, Joanne Vassallo, Marta Baccaro, Neja Medvešček, Magdalena Grgić, Abel Ferreira, Martí Busquets-Fité, Kerstin Jurkschat, Anastasios G. Papadiamantis, Victor Puntes, Iseult Lynch, Claus Svendsen, Den Brink Nw Van, Richard D. Handy, Gestel Cam Van, Susana Loureiro

School of Health Professions

Mesocosms allow the simulation of environmentally relevant conditions and can be used to establish more realistic scenarios of organism exposure to nanoparticles. An indoor mesocosm experiment simulating an aquatic stream ecosystem was conducted to assess the toxicokinetics and bioaccumulation of silver sulfide nanoparticles (Ag2S NPs) and AgNO3 in the freshwater invertebrates Girardia tigrina, Physa acuta and Chironomus riparius, and determine if previous single-species tests can predict bioaccumulation in the mesocosm. Water was daily spiked at 10 μg Ag L−1. Ag concentrations in water and sediment reached values of 13.4 μg Ag L−1 and 0.30 μg Ag g−1 in the Ag2S …

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Isolated Pdo Sites On Sio2-Supported Nio Nanoparticles As Active Sites For Allylic Alcohol Selective Oxidation., Aleksandra Ziarko, Thomas J.A. Slater, Mark A. Isaacs, Lee J. Durndell, Christopher M.A. Parlett May 2023

Isolated Pdo Sites On Sio2-Supported Nio Nanoparticles As Active Sites For Allylic Alcohol Selective Oxidation., Aleksandra Ziarko, Thomas J.A. Slater, Mark A. Isaacs, Lee J. Durndell, Christopher M.A. Parlett

School of Geography, Earth and Environmental Sciences

Catalytic allylic alcohol oxidation to aldehydes is an industrial process that necessitates chemoselectivity. Surface PdO (on Pd) enables this transformation but does not represent optimal metal utilisation. Here we report a facile synthesis route to produce isolated surface PdO catalytic sites on an earth-abundant metal (NiO) for cinnamyl alcohol oxidation.

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Ultra-Trace Analysis Of Fallout Plutonium Isotopes In Soil: Emerging Trends And Future Perspectives, Sophia M. Dowell, Olivier S. Humphrey, William H. Blake, Odipo Osano, Simon Chenery, Michael J. Watts May 2023

Ultra-Trace Analysis Of Fallout Plutonium Isotopes In Soil: Emerging Trends And Future Perspectives, Sophia M. Dowell, Olivier S. Humphrey, William H. Blake, Odipo Osano, Simon Chenery, Michael J. Watts

School of Geography, Earth and Environmental Sciences

The measurement of isotopic abundances and ratio variations of plutonium can provide important information about the sources and behaviours of radiogenic isotopes in the environment. The detection of ultra-trace isotopes of plutonium is increasing interest in the scientific literature for the determination of soil erosion rates due to their long retention times in the environment. The characteristics of plutonium within the environment make it an ideal tracer for the determination of soil redistribution rates and its robustness presents the opportunity to replace more commonly used radioisotopes such as 137Cesium and 210Lead. However, ultra-trace analysis of plutonium (fg g−1) presents analytical …

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