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Tracking Palaeotemperatures In Coniacian–Maastrichtian Seas, Gregory D. Price, Bryan Low Kai Sheng Jan 2025

Tracking Palaeotemperatures In Coniacian–Maastrichtian Seas, Gregory D. Price, Bryan Low Kai Sheng

School of Geography, Earth and Environmental Sciences

In this study the stable isotopes of belemnites, are presented from the Coniacian–Maastrichtian interval (∼76–66 Ma) derived from the chalks of Yorkshire and Norfolk, UK, deposited on the western North Atlantic shelf. Cathodoluminescence and elemental geochemistry of the belemnites reveals that most of the rostra were well preserved. If interpreted in terms of temperature, our oxygen isotope record reveals that during the Coniacian (at ∼43 °N) the climate was relatively warm, with maximum mean temperatures of ∼26 °C, followed by cooling to <∼21 °C during the Campanian and Maastrichtian. This overall stratigraphic trend is similar to other records, suggesting that the cooling pattern was not a regional trend and, therefore, driven predominantly by global mechanisms. Within our belemnite data, we also observe a decline in δ13C at the Campanian- Maastrichtian boundary, again consistent with other records. This trend has been interpreted as …


Epistolary Technologies Of Separation And Archives Of Emotion, James Daybell Jan 2025

Epistolary Technologies Of Separation And Archives Of Emotion, James Daybell

School of Law, Humanities and Social Sciences

No abstract provided.


Cold Water Swimming And Pregnancy: A Scoping Review And Consensus Recommendations, J. Shawe, M. Felton, J. C. Harper, C. Mark Harper, R. Stidson, M. Tipton, S. Blowers, K. Fraser, S. Hingley, E. Mcgrath, G. Bainbridge, Massey Heather Jan 2025

Cold Water Swimming And Pregnancy: A Scoping Review And Consensus Recommendations, J. Shawe, M. Felton, J. C. Harper, C. Mark Harper, R. Stidson, M. Tipton, S. Blowers, K. Fraser, S. Hingley, E. Mcgrath, G. Bainbridge, Massey Heather

School of Nursing and Midwifery

Introduction: Cold water swimming has increased in popularity and women wish to swim throughout pregnancy. There is a lack of evidenced-based guidance to make decisions about the safety of immersion in cold water during pregnancy. Methods: Closed social media groups were asked for specific questions in relation to cold water swimming and pregnancy. This highlighted concerns including water temperature, risks to the mother and fetus, and water quality. To find evidence-based answers, a series of meetings brought together clinicians and researchers with expertise in cold water physiology, exercise physiology, fertility, obstetrics, neonatology, midwifery, water epidemiology, public health and representatives from …


“I'M Pregnant, What Do I Do?”: Exploring How People Having Abortions In Britain Find And Use Online Sources Of Information, The Sacha Study Team, Rosa Mackay, Rachel Scott, Maria Lewandowska, Rebecca Meiksin, Natasha Salaria, Patricia A. Lohr, Sharon Cameron, Melissa Palmer, Rebecca S. French, Kaye Wellings, Annette Aronsson, Paula Baraitser, Caroline Free, Louise Keogh, Clare Murphy, Wendy Norman, Jennifer Reiter, Jill Shawe, Sally Sheldon, Geoffrey Wong Jan 2025

“I'M Pregnant, What Do I Do?”: Exploring How People Having Abortions In Britain Find And Use Online Sources Of Information, The Sacha Study Team, Rosa Mackay, Rachel Scott, Maria Lewandowska, Rebecca Meiksin, Natasha Salaria, Patricia A. Lohr, Sharon Cameron, Melissa Palmer, Rebecca S. French, Kaye Wellings, Annette Aronsson, Paula Baraitser, Caroline Free, Louise Keogh, Clare Murphy, Wendy Norman, Jennifer Reiter, Jill Shawe, Sally Sheldon, Geoffrey Wong

School of Nursing and Midwifery

Background: Accurate, timely, and supportive information is important for high-quality abortion care. Limited research explores how people find and use online sources of information (OSI) during the abortion process, particularly in Britain. Understanding experiences of using OSI is important for the development of person-centered services and resources. Methods: We conducted a thematic analysis of qualitative data from 41 semi-structured interviews carried out in 2021/2022 with people who had recent experience of abortion in Britain. Results: Using OSI was common amongst participants. Our analysis generated four distinct motivations for doing so. People used OSI to find information about accessing abortion services. …


Relationships Between Sediment Size Distribution And Microplastic Abundance And Characteristics Along The Strandline Of A Sandy Embayment (Whitsand, Southwest England), Oliver J. Fenn, Edward J. Walklett, Andrew Turner Jan 2025

Relationships Between Sediment Size Distribution And Microplastic Abundance And Characteristics Along The Strandline Of A Sandy Embayment (Whitsand, Southwest England), Oliver J. Fenn, Edward J. Walklett, Andrew Turner

School of Geography, Earth and Environmental Sciences

Beach sediments taken from 1 m2 areas of strandline across an embayment in southwest England (Whitsand) have been analysed for grain size distribution and elemental content. Large (1–5 mm) and small (< 1 mm) microplastics were isolated by sieving and flotation in NaBr solution, respectively, and characterised by size, shape, colour and polymeric makeup. Sediments displayed varying median diameters and degrees of sorting but distributions were always positively skewed. Concentrations of Fe, K, Mn and Ti were relatively invariant, but Ca concentrations exhibited heterogeneous distributions across the bay. Large microplastics were largely composed of polyolefin-based pre-production pellets, bio-beads and fragments whose numbers were correlated with each other. Positive and inverse relationships between beads and sediment skewness and sorting, respectively, suggests that deposition of this type of plastic is favoured where sediment is well-sorted and contains a high proportion of fine material. Small microplastics were dominated by fragments and fibres <200 μm in size composed of a broader array of polymers (including epoxy resin, polyetherimide and polyvinyl alcohol). Fibres exhibited an inverse relationship with bead and pellet abundance but there was no evidence of dependency on grain size distribution, and their presence is attributed to entrapment in interstitial spaces between sediment grains. Compositional differences between large (1–5 mm) and small (< 1 mm) microplastic fragments suggests they are derived from different sources, with the former coupled with pellet and bead deposition and the latter small enough to be retained in interstitial spaces with fibres. However, a positive relationship between mean (small) fragment size and median sediment diameter suggests that their retention is more constrained by interstitial space than fibres. The study provides evidence that microplastics of different size and shape behave differently but are, ultimately, related to or controlled by sediment size distribution in the coastal littoral zone.


Determination Of Titanium Speciation In Consumer Plastics By Raman Microspectroscopy, Johanna Brazard, Takuji B.M. Adachi, Andrew Turner, Montserrat Filella Jan 2025

Determination Of Titanium Speciation In Consumer Plastics By Raman Microspectroscopy, Johanna Brazard, Takuji B.M. Adachi, Andrew Turner, Montserrat Filella

School of Geography, Earth and Environmental Sciences

The main component of objects made of plastic is an organic polymer matrix, but plastics also contain a wide range of other chemicals, such as additives, processing aids and unintentionally added substances. At present, the scientific and regulatory communities face challenges due to the lack of access to basic information on their quantity and identity, which is crucial in relation to potential toxicity, management, recycling, environmental fate and resource uses. Moreover, an additional problem is that some additives, such as titanium oxide (TiO2), can be present in different crystallographic forms, which makes it necessary to characterise not only …


Conservation Planning For Promoting Ecosystem Service Provisioning Outside Protected Area Networks, Florence Godfrey Tarimo, Francis Moyo, Claire Kelly, Linus Kasian Munishi Jan 2025

Conservation Planning For Promoting Ecosystem Service Provisioning Outside Protected Area Networks, Florence Godfrey Tarimo, Francis Moyo, Claire Kelly, Linus Kasian Munishi

School of Geography, Earth and Environmental Sciences

Among factors that contribute to global biodiversity loss, habitat loss through unsustainable land use and land cover changes has gained prominence, with impacts being exacerbated by increasing human populations. Establishing protected area networks (PANs) is strongly advocated by national and international mechanisms, such as the Convention on Biological Diversity (CBD), as a primary strategy to guide biodiversity conservation and management; however, this can undermine conservation efforts outside protected areas. Understanding how people and biodiversity overlap and interact outside protected area networks (OPAN areas) is essential for setting realistic, sustainable targets to guide biodiversity conservation and ecosystem service provision beyond PAN. …


Productivity History Of The Central Okhotsk Sea And Northeast Russia During The Mid-Pleistocene Transition, Li Lo, Wei Zhu Chen, Julie Lattaud, Yi Hsueh Tsai, Simon T. Belt, Lukas Smik, Yuen Tung Kiki Wan Jan 2025

Productivity History Of The Central Okhotsk Sea And Northeast Russia During The Mid-Pleistocene Transition, Li Lo, Wei Zhu Chen, Julie Lattaud, Yi Hsueh Tsai, Simon T. Belt, Lukas Smik, Yuen Tung Kiki Wan

School of Geography, Earth and Environmental Sciences

Biological productivity, shaped by climate and environmental factors, is critical to climate feedback mechanisms and the global carbon cycle. This study investigates the measurement of six phytosterols (β-sitosterol, stigmasterol, campesterol, dinosterol, epi-brassicasterol, and 24-methylene cholesterol) from core MD01-2414 in the central Okhotsk Sea, covering the past 1.5 million years (Ma). These sterols serve as proxies for terrestrial and marine productivity in the central Okhotsk Sea and northeast Siberia. Sterol concentrations reflect global glacial/interglacial cycles between 1.2 and 0.6 Ma, with higher and lower values during interglacial and glacials intervals, respectively. X-ray fluorescence (Ba/Ti) and total organic carbon/total nitrogen (TOC/TN) ratios …


Intertidal Encounters: Centre For Sustainable Practice In The Arts Quarterly, Sarah Blissett, James Jordan Johnson, Cherry Truluck, Anastasia (A) Alevtin, Monstera Deliciosa, Arbonauts, Sam Hodge, Olga (F) Koroleva Jan 2025

Intertidal Encounters: Centre For Sustainable Practice In The Arts Quarterly, Sarah Blissett, James Jordan Johnson, Cherry Truluck, Anastasia (A) Alevtin, Monstera Deliciosa, Arbonauts, Sam Hodge, Olga (F) Koroleva

School of Art, Design and Architecture

Intertidal Encounters ask: what are the stories cast up by intertidal being/s and how do they come to matter?


Digitised Dockyard: A Digital Twin For Multi-Objective Optimisation, Joseph Ross Jan 2025

Digitised Dockyard: A Digital Twin For Multi-Objective Optimisation, Joseph Ross

School of Engineering, Computing and Mathematics Theses

Digital twin technology is emerging as a transformative tool across multiple industries to digitally represent physical entities for monitoring and simulation. While many implementations focus on single systems or commercial applications, this thesis investigates the use of a digital twin to represent and optimise the operational logistics of a non-commercial, high-security maritime site. By treating the entire base as a holistic entity composed of interdependent systems, such as buildings, utilities, communications infrastructure, personnel, and services, the research explores how artificial intelligence techniques can be embedded within a digital twin to support decision-making.This thesis proposes and develops a bespoke digital twin …


Patient-Reported Outcomes, Postoperative Pain And Pain Relief After Day Case Surgery (Poppy): Methodology For A Prospective, Multicentre Observational Study*, William M. Hare, Martha Belete, Adam B. Brayne, Harriet Daykin, Matthew Everson, Anna Ratcliffe, Katie Samuel, Lexy Sorrell, Mark Rockett Jan 2025

Patient-Reported Outcomes, Postoperative Pain And Pain Relief After Day Case Surgery (Poppy): Methodology For A Prospective, Multicentre Observational Study*, William M. Hare, Martha Belete, Adam B. Brayne, Harriet Daykin, Matthew Everson, Anna Ratcliffe, Katie Samuel, Lexy Sorrell, Mark Rockett

Peninsula Medical School

Background: In the UK, approximately 70% of surgical procedures are undertaken as day-cases. Little information exists about recovery from day-case surgery, yet international data highlights patients are at risk of developing significant longer-term health problems including chronic post-surgical pain and persistent postoperative opioid use. The Patient-reported Outcomes, Postoperative Pain and pain relief after daY case surgery (POPPY) study was a national prospective multicentre observational study, measuring short- and longer-term patient-reported outcomes, postoperative pain and pain relief after day-case surgery. Methods: This was a collaborative project led by resident anaesthetists under the Research and Audit Federation of Trainees umbrella. Adult day-case …


Globalism, Localism And Blue Food Systems – How Can Cross-Scale Tensions Be Reduced? A Production Perspective From Uk Seafood Stakeholders, Alex J. Caveen, Bryce D. Stewart, Cameron Moffat, Daniel Skerritt, Estelle Jones, Huw Thomas, Lara Funk, Magnus Johnson, Mike Cohen, Michael Roach, Neil A. Auchterlonie, Samuel Peacock, Sarah Hussey, Tim Gray, Tom Pickerell, Umi Muawanah, Vasiliki Kioupi, Yvonne Sadovy De Mitcheson, Neil M. Burns, Charlotte R. Hopkins Jan 2025

Globalism, Localism And Blue Food Systems – How Can Cross-Scale Tensions Be Reduced? A Production Perspective From Uk Seafood Stakeholders, Alex J. Caveen, Bryce D. Stewart, Cameron Moffat, Daniel Skerritt, Estelle Jones, Huw Thomas, Lara Funk, Magnus Johnson, Mike Cohen, Michael Roach, Neil A. Auchterlonie, Samuel Peacock, Sarah Hussey, Tim Gray, Tom Pickerell, Umi Muawanah, Vasiliki Kioupi, Yvonne Sadovy De Mitcheson, Neil M. Burns, Charlotte R. Hopkins

School of Biological and Marine Sciences

‘Blue foods’ are derived from aquatic species that are caught or cultivated and are amongst the most globally traded commodities. Growing emphasis is being placed on blue foods in future transitions to sustainable food systems. However, recent international events such as the Covid-19 pandemic, UK-EU ‘Brexit’, and Russia-Ukraine war have caused renewed interest in ideological debates between globalism and localism and associated cross-scale tensions. Here, we aim to provide further insight into cross-scale tensions in blue food systems through a literature review and UK-based seafood stakeholder workshop. From our literature review, the evidence for cross-scale tensions was linked to the …


New Insights Into Active Tectonics And Landscape Evolution Of The Northernmost Chilean Central Depression, A. Vega-Ruiz, P. Victor, K. Reicherter, A. Binnie, L. Evenstar, G. González, S. A. Binnie Jan 2025

New Insights Into Active Tectonics And Landscape Evolution Of The Northernmost Chilean Central Depression, A. Vega-Ruiz, P. Victor, K. Reicherter, A. Binnie, L. Evenstar, G. González, S. A. Binnie

School of Geography, Earth and Environmental Sciences

Active deformation and landscape evolution in North Chilean forearc involve multiscale tectonic processes, such as crustal thickening causing orogenic-scale uplift and faulting modulating the mountain-front landscape. In the Central Depression, faults redirecting Quaternary drainages are poorly understood due to their subtle surface expressions and limited structural data acquisition. To address this, we combined remote-sensing analysis of high-resolution DEMs, satellite and UAV imagery, new geomorphic mapping, structural data, and morphometric analysis with available surface age dating to identify and give temporal constraints on previously unmapped faults impacting drainages across this region. Our findings reveal the reactivation of east-vergent NNW-SSE reverse to …


Sulfur Cycling In The Gabbroic Section Of The Oman Ophiolite, Ana P. Jesus, Harald Strauss, Mário A. Gonçalves, Michelle Harris, Diogo Silva, Martin J. Whitehouse, Damon A.H. Teagle Jan 2025

Sulfur Cycling In The Gabbroic Section Of The Oman Ophiolite, Ana P. Jesus, Harald Strauss, Mário A. Gonçalves, Michelle Harris, Diogo Silva, Martin J. Whitehouse, Damon A.H. Teagle

School of Geography, Earth and Environmental Sciences

We present sulfur mineralogy and isotope geochemistry from the gabbro transect of the Oman Drilling Project to unravel the sulfur cycle during hydrothermal alteration of the plutonic oceanic crust. The sheeted dike–gabbro transition (Hole GT3A) shows low sulfide‑sulfur concentrations (GT3Amedian = 178 ppm, σ = 4873 ppm) but with great sulfur isotope variability (δ34S = −12.8 to 14.4 ‰ V-CDT, weighted average + 5.8 ‰) and unusually heavy compositions relative to in-situ or ophiolitic crust. These features are consistent with abiogenic thermochemical sulfate reduction during intense hydrothermal alteration under greenschist facies conditions which formed a low-variance and …


Ethnographically Informed Research Exploring The Impact Of Embedding Trauma-Informed Principles In A Befriending Programme For Refugees., Zahraa Abdulreda Jan 2025

Ethnographically Informed Research Exploring The Impact Of Embedding Trauma-Informed Principles In A Befriending Programme For Refugees., Zahraa Abdulreda

School of Psychology Theses

Refugees often experience trauma from war, displacement, and post-migration stressors, leading to collective and transgenerational trauma. This study explored the impact of embedding trauma-informed principles (TIP) within a refugee befriending programme, where refugees were paired with local volunteers. Ethnographic Action informed research was used through completing interviews, observations, and a focus group. Participants included five befrienders and seven refugees, alongside observational data. Thematic and framework analyses identified five key themes: The Relationship, Safety for Befrienders, Inclusivity, Supporting Befriendees with Integration, and Challenges of Befriending. TIP enhanced understanding of how community-based, trauma-informed interventions can support refugee recovery and resilience. The study …


Exploring Proteins Within The Coccolith Matrix, Craig J. Dedman, Nishant Chauhan, Alba González-Lanchas, Chloë Baldreki, Adam A. Dowle, Tony R. Larson, Renee B.Y. Lee, Rosalind E.M. Rickaby Dec 2024

Exploring Proteins Within The Coccolith Matrix, Craig J. Dedman, Nishant Chauhan, Alba González-Lanchas, Chloë Baldreki, Adam A. Dowle, Tony R. Larson, Renee B.Y. Lee, Rosalind E.M. Rickaby

School of Geography, Earth and Environmental Sciences

Coccolithophores comprise a major component of the oceanic carbon cycle. These unicellular algae produce ornate structures made of calcium carbonate, termed coccoliths, representing ~ 50% of calcite production in the open ocean. The exact molecular mechanisms which direct and control coccolith formation are unknown. In this study, we report on the presence and functional features of proteins within the coccoliths produced by a range of model coccolithophore species including: the globally abundant and well-studied Gephyrocapsa huxleyi (formerly Emiliania huxleyi) and related Gephyrocapsa oceanica, as well as the larger and more heavily calcified Coccolithus braarudii. Protein features were compared between species …


A Mid-20th Century Stratigraphical Anthropocene Is Recognisable In The Birth-Area Of The Industrial Revolution, Hannah Sellers, Neil Roberts Dec 2024

A Mid-20th Century Stratigraphical Anthropocene Is Recognisable In The Birth-Area Of The Industrial Revolution, Hannah Sellers, Neil Roberts

More Faculty of Science and Engineering Research

The formalisation of the Anthropocene as a subdivision of the Geological Time Scale has been under debate. Its stratigraphic boundary has been proposed as a precise Global boundary Stratotype Section and Point (GSSP) in the mid-20th century, but it is part of an episode of human-induced changes to the Earth System that have unfolded over millennia. Here we attempt to identify stratigraphical patterns of the Anthropocene from a previously well studied lake sedimentary archive from the English Midlands, located in one of the most heavily human-modified landscapes in the UK, and the birthplace of the Industrial Revolution. Our analysis is …


An In-Depth Analysis And Comparison Of Eco And Non-Eco Surfboard Waxes, Markos Kaskaneas - Efthymiou Dec 2024

An In-Depth Analysis And Comparison Of Eco And Non-Eco Surfboard Waxes, Markos Kaskaneas - Efthymiou

The Plymouth Student Scientist

Questions regarding the sustainability of petroleum-based surfboard waxes gave rise to the development and marketing of a sustainable alternative called “Eco” surf wax. The chemistry behind surf waxes is generally unknown and there is no published research on the area of surf waxes. In this analysis, the chemical properties of both types of waxes were investigated, to determine the difference between non-eco and eco waxes and between different water temperature rating waxes. 15 surf wax samples (10 non-eco, 5 eco) were extracted into organic and inorganic fractions and analysed by FT-IR, GC-MS, and HTGC-FID/MS. Multivariate statistical analysis was also performed. …


Developing A Method To Identify Tyre Particles By Detecting Benzothiazole Via Gc-Ms, Emma Paull Dec 2024

Developing A Method To Identify Tyre Particles By Detecting Benzothiazole Via Gc-Ms, Emma Paull

The Plymouth Student Scientist

Tyre particles are a dominant source of microplastic pollution in our environment. However, their chemical and physical properties are poorly understood and no standardised methods for identifying and quantifying them exist. This study looked to develop a method to identify tyre particles using two tyre samples of differing particle sizes, fine (62 - 125 µm) and coarse (250 – 500 µm). Both samples underwent ultrasound-assisted extraction before being analysed via gas chromatography-mass spectrometry (GC-MS) in both full scan and SIM mode, using benzothiazole as a marker. Both samples were also analysed via particle size analysis, scanning electron microscopy (SEM) and …


Microplastics In The Mix: Types And Retention Of Microplastics Within A Mixed Species Seagrass Meadow In The Tamar Estuary, Ida S. Kreuze Dec 2024

Microplastics In The Mix: Types And Retention Of Microplastics Within A Mixed Species Seagrass Meadow In The Tamar Estuary, Ida S. Kreuze

The Plymouth Student Scientist

Microplastic pollution in coastal systems is becoming increasingly prevalent and a commonly discussed topic in science and the media. Seagrass beds have been identified as highly vulnerable environments to microplastic pollution due to their nature as traps for particulate matter in the water column, and their role in habitat production and blue carbon storage makes them of high conservation concern. This study examined a mixed species seagrass bed in the Tamar Estuary in Plymouth Sound, composed of Nanozostera noltei and a morphology of Zostera marina, to identify how seagrass shoot density and sediment particle size impacted the number and …


Synthesis And Characterisation Of An Acetylcholinesterase Inhibitor, Elijah Rahman-Riding Dec 2024

Synthesis And Characterisation Of An Acetylcholinesterase Inhibitor, Elijah Rahman-Riding

The Plymouth Student Scientist

Acetylcholinesterase (AChE) inhibitors are currently the only effective treatment for people with Alzheimer’s disease (AD), a fatal neurodegenerative disease that affects 50 million people worldwide at present but is expected to rise dramatically over the next 30 years. The aim of this research was to synthesise an AChE inhibitor derivative of tacrine, 4-chloro-2(((1,2,3,4-tetrahydroacridin-9yl)imino)methyl)phenol (chlorophenol tacrine). This was achieved by first synthesising tacrine, evidencing successful synthesis and assaying purity of the product, then, synthesising a simple derivative, acetyl tacrine, before chlorophenol tacrine. At every stage of the investigation comprehensive structural analysis of each product was obtained using FT-IR, CHN analysis, GC-FID, …


The Occurrence And Biogeochemical Cycling Of Quaternary, Ternary And Volatile Amines In Marine Systems, Mark Fitzsimons, Ruth Airs, Yin Chen Dec 2024

The Occurrence And Biogeochemical Cycling Of Quaternary, Ternary And Volatile Amines In Marine Systems, Mark Fitzsimons, Ruth Airs, Yin Chen

School of Geography, Earth and Environmental Sciences

This review provides a critical assessment of knowledge regarding the occurrence and behaviour of volatile, low molecular weight amines, particularly methylamines and quaternary amines, in marine aquatic systems. It provides an up-to-date evaluation of their presence within marine ecosystems, the processes likely to control their flux across the sea-air interface, and analytical techniques associated with their measurement. Interest in the occurrence and cycling of these groups of compounds in seawater has increased within the last 10–15 years, due to their potential role in climate regulation. As such, the need for wider measurements and mechanistic studies to elucidate their role within …


Impact Of Global Environmental Changes On The Range Contraction Of Eurasian Moose Since The Late Pleistocene, Magdalena Niedziałkowska, Marcin Górny, Joanna Gornia, Danijela Popović, Mateusz Baca, Urszula Ratajczak-Skrzatek, Oleksandr Kovalchuk, Maciej Sykut, Małgorzata Suska-Malawska, Paweł Mackiewicz, Emilia Hofman-Kamińska, Rafał Kowalczyk, Maxim Czarniauski, Kamilla Pawłowska, Daniel Makowiecki, Larisa Tataurova, Alexey Bondarev, Andrey Shpansky, Albert V. Protopopov, Aleksandr Dmitrievich Sorokin, Urmas Saarma, Pavel Kosintsev, Ulrich Schmölcke, Jarosław Wilczyński, Grzegorz Lipecki, Adam Nadachowski, Gennady G. Boeskorov, Gennady F. Baryshnikov, Roberto Zorzin, Nadezhda Vorobiova Dec 2024

Impact Of Global Environmental Changes On The Range Contraction Of Eurasian Moose Since The Late Pleistocene, Magdalena Niedziałkowska, Marcin Górny, Joanna Gornia, Danijela Popović, Mateusz Baca, Urszula Ratajczak-Skrzatek, Oleksandr Kovalchuk, Maciej Sykut, Małgorzata Suska-Malawska, Paweł Mackiewicz, Emilia Hofman-Kamińska, Rafał Kowalczyk, Maxim Czarniauski, Kamilla Pawłowska, Daniel Makowiecki, Larisa Tataurova, Alexey Bondarev, Andrey Shpansky, Albert V. Protopopov, Aleksandr Dmitrievich Sorokin, Urmas Saarma, Pavel Kosintsev, Ulrich Schmölcke, Jarosław Wilczyński, Grzegorz Lipecki, Adam Nadachowski, Gennady G. Boeskorov, Gennady F. Baryshnikov, Roberto Zorzin, Nadezhda Vorobiova

School of Geography, Earth and Environmental Sciences

Climatic oscillations are considered primary factors influencing the distribution of various life forms on Earth. Large species adapted to cold climates are particularly vulnerable to extinction due to climate changes. In our study, we investigated whether temperature increase since the Late Pleistocene and the contraction of environmental niche during the Holocene were the main factors contributing to the decreasing range of moose (Alces alces) in Europe. We also examined whether there were significant differences in environmental conditions between areas inhabited by moose in Europe and Asia, that could support the division of moose into western and eastern forms, as suggested …


Terrestrial Evidence For Volcanogenic Sulfate-Driven Cooling Event ~30 Ka Before The Cretaceous–Paleogene Mass Extinction: Volcanism-Induced Cooling ~30 Ka Pre-K–Pg Boundary, Lauren O'Connor, Rhodri Jerrett, Gregory Price, Tyler Lyson, Sabine Lengger, Francien Peterse, Bart Van Dongen Dec 2024

Terrestrial Evidence For Volcanogenic Sulfate-Driven Cooling Event ~30 Ka Before The Cretaceous–Paleogene Mass Extinction: Volcanism-Induced Cooling ~30 Ka Pre-K–Pg Boundary, Lauren O'Connor, Rhodri Jerrett, Gregory Price, Tyler Lyson, Sabine Lengger, Francien Peterse, Bart Van Dongen

School of Geography, Earth and Environmental Sciences

Alongside the Chicxulub meteorite impact, Deccan volcanism is considered a primary trigger for the Cretaceous–Paleogene (K–Pg) mass extinction. Models suggest that volcanic outgassing of carbon and sulfur—potent environmental stressors—drove global temperature change, but the relative timing, duration, and magnitude of such change remains uncertain. Here, we use the organic paleothermometer MBT′5me and the carbon-isotope composition of two K–Pg-spanning lignites from the western Unites States, to test models of volcanogenic air temperature change in the ~100 kyr before the mass extinction. Our records show long-term warming of ~3°C, probably driven by Deccan CO2 emissions, and reveal a transient (<10 kyr) ~5°C cooling event, coinciding with the peak of the Poladpur “pulse” of Deccan eruption ~30 kyr before the K–Pg boundary. This cooling was likely caused by the aerosolization of volcanogenic sulfur. Temperatures returned to pre-event values before the mass extinction, suggesting that, from the terrestrial perspective, volcanogenic climate change was not the primary cause of K–Pg extinction.


Eefit Surface Rupture Data, Sarah Boulton Dec 2024

Eefit Surface Rupture Data, Sarah Boulton

Faculty of Science and Engineering Datasets

This dataset is a combined line shapefile composed of: 1) original mapping by Sarah J. Boulton (University of Plymouth) as part of the EEFIT event response effort, and 2) and edited lines sourced from database of Reitman et al. (2023). These published data have been checked for consistency and a significant number of changes made primarily consisting of: a) removal of duplicate lines for the same rupture segment; b) reshaping lines where inconsistent with satellite imagery, and c) removal of lines identified as other non-tectonic features such as shadows, crop marks, tracks etc.


Eefit Landslide Inventory, Joshua N Jones, Sarah Boulton Dec 2024

Eefit Landslide Inventory, Joshua N Jones, Sarah Boulton

Faculty of Science and Engineering Datasets

This co-seismic landslide inventory was mapped by Joshua Jones (AECOM) as part of the EEFIT response mission after the 6th February 2023 Karamanmaras Earthquakes and published in Boulton et al. (in review). This is not a full inventory of all features but is supplemental and additional to the published database of Gorum et al. (2023) and should be used along side this more extensive dataset.


Eefit Liquefaction Inventory, Joshua N Jones, Sarah Boulton Dec 2024

Eefit Liquefaction Inventory, Joshua N Jones, Sarah Boulton

Faculty of Science and Engineering Datasets

A co-seismic liquefaction inventory that was mapped by Joshua Jones (AECOM) as part of the EEFIT response mission after the 6th February 2023 Karamanmaras Earthquakes and to be published in Boulton et al. (in review). This is not a full inventory of all features but is supplemental and additional to the published database of Taftsoglu et al. (2023) and should be used along side this more extensive dataset.


Contribution Of Fish To Food And Nutrition Security In Southern Africa: Challenges And Opportunities In Fish Production, Sahya Maulu, Confred Godfrey Musuka, Montshwari Molefe, Tlou Kevin Ngoepe, Ndakalimwe Naftal Gabriel, Joseph Mphande, Msumenji Phiri, Valdemiro Muhala, Messias Alfredo Macuiane, Mzime Regina Ndebele-Murisa, Oliver Jolezya Hasimuna, Thethela Bokhutlo, Mexford Mulumpwa, Victoria Ndinelago Erasmus, Wilson Jere, Chipo Hazel Dekesa, Chipo Plaxedes Mubaya, Manecas Francisco Baloi, Johannes Angala Iitembu, Enock Siankwilimba, Lin Zhang Dec 2024

Contribution Of Fish To Food And Nutrition Security In Southern Africa: Challenges And Opportunities In Fish Production, Sahya Maulu, Confred Godfrey Musuka, Montshwari Molefe, Tlou Kevin Ngoepe, Ndakalimwe Naftal Gabriel, Joseph Mphande, Msumenji Phiri, Valdemiro Muhala, Messias Alfredo Macuiane, Mzime Regina Ndebele-Murisa, Oliver Jolezya Hasimuna, Thethela Bokhutlo, Mexford Mulumpwa, Victoria Ndinelago Erasmus, Wilson Jere, Chipo Hazel Dekesa, Chipo Plaxedes Mubaya, Manecas Francisco Baloi, Johannes Angala Iitembu, Enock Siankwilimba, Lin Zhang

School of Biological and Marine Sciences

This study investigated the role of fish in addressing food and nutrition security challenges in Southern Africa, focusing on 10 countries including Angola, Zambia, Malawi, Mozambique, Namibia, Botswana, Zimbabwe, Lesotho, Eswatini, and South Africa. It examined the current state of food and nutrition security, fish production, and fish consumption patterns. Additionally, the study investigated the challenges and opportunities to enhance fish production in these countries thereby enhancing food and nutrition security. The findings revealed persistent challenges such as a high prevalence of food insecurity and malnutrition throughout the region. Fish production is hindered by overexploitation of fishery resources, inadequate fisheries …


Mental Health, Well-Being And Resilience In Agricultural Areas: Gaps And Priorities. A Research Agenda For The Global North, Caroline Nye, Rebecca Wheeler, David Rose, Florence Becot, Mark Holton, Duska Knezevic Hocevar, Jorie Knook, Sarah Kyle, Maria Partalidou, Mark Riley, Artur Steiner, Hannah Whitley Dec 2024

Mental Health, Well-Being And Resilience In Agricultural Areas: Gaps And Priorities. A Research Agenda For The Global North, Caroline Nye, Rebecca Wheeler, David Rose, Florence Becot, Mark Holton, Duska Knezevic Hocevar, Jorie Knook, Sarah Kyle, Maria Partalidou, Mark Riley, Artur Steiner, Hannah Whitley

School of Geography, Earth and Environmental Sciences

This paper offers an overview of research perspectives, gaps, and priorities within the field of mental health and well-being among farming communities in the Global North. Developed by an international working group of scholars with expertise in the mental health and well-being of agricultural and rural communities, it outlines the importance of developing an international research agenda in this subject area by presenting five propositions. Each of the propositions addresses current research gaps and/or highlights potential advancements in investigations into one of the following areas of study: i) who is being researched, ii) what is being researched, iii) geographical gaps …


Particle Size And Settling Velocity Of Bed And Suspended Sediments For Mud-Sand Beds, Leo Van Rijn, Luitze Perk, Bas Van Maren, Andy Manning Dec 2024

Particle Size And Settling Velocity Of Bed And Suspended Sediments For Mud-Sand Beds, Leo Van Rijn, Luitze Perk, Bas Van Maren, Andy Manning

School of Geography, Earth and Environmental Sciences

The particle size and the settling velocity of sediments are key parameters in sediment transport studies. However, it remains surprisingly difficult to determine particle size and settling velocity distribution of fine-grained sediments (mud-sand). A large range of methodologies exist to measure either the particle size distribution or to measure the settling velocity. An important influential parameter is the shape of fine-grained sediments, with clay minerals being shaped as plates rather than as spheres. Furthermore, the settling velocity of fine particles is influenced by turbulent shear and flocculation processes. Sometimes, the sediment samples are pre-treated (destroying inter-particle bonds) to measure the …