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Articles 5371 - 5400 of 6794
Full-Text Articles in Entire DC Network
Possible Preventive Obesity Measures For Consideration In Labrador Retrievers Canis Lupus Familiaris According To Veterinarian And Owner Opinions, Sophie Bannister
Possible Preventive Obesity Measures For Consideration In Labrador Retrievers Canis Lupus Familiaris According To Veterinarian And Owner Opinions, Sophie Bannister
The Plymouth Student Scientist
Canine obesity is a persistent and ever-increasing chronic disease. This research investigated possible new and improved preventive obesity measures specific to the Labrador retriever dog breed. Quantitative analysis of questionnaire responses from 128 Labrador retriever owners and 46 veterinarians was used. Owners were asked to score the body condition of their Labrador retrievers using a series of pictograms ranging from 1-5 to establish body levels. Biological and environmental factors of the dogs were investigated to determine their effects on predisposition to body weight levels. The colour of the Labrador (Chi: χ² = 10.964; d.f. = 4; P<0.027) and the breed (Chi: χ² = 11.073; d.f. = 2; P<0.004) were associated with the dogs' levels of obesity whereas the Labrador's field/role (Chi: χ² = 3.240; d.f. = 2; P<0.198) was not. Comparison of veterinarians' opinions on such factors regarded coat colour (Chi: χ² = 1.22581; d.f. = 2; P>0.542) and breed …
Osmotic Regulation Of The Amphipod Gammarus Chevreuxi (Sexton, 1912), Sam Houston
Osmotic Regulation Of The Amphipod Gammarus Chevreuxi (Sexton, 1912), Sam Houston
The Plymouth Student Scientist
This study investigated osmotic regulation in the amphipod, Gammarus chevreuxi, and is the first publication of this organism’s osmotic regulatory curves. Unlike most estuarine amphipods studied to date which are hyperosmotic regulators, G. chevreuxi is a hyper-hyposmotic regulator. The hyperosmotic gradient maintained by G. chevreuxi in dilute media is very low (~120mmol.L-1), which has been interpreted as evidence of freshwater ancestry among the Crustacea. Salinity acclimation did not appear to affect heart rate or pleopod beat frequency. The gill cells responsible for ion uptake appeared to be smaller in high salinities or distorted. The apical membrane in concentrated media shows …
Key Factors That Influence Breeding Performance In Raptors, James Paviour
Key Factors That Influence Breeding Performance In Raptors, James Paviour
The Plymouth Student Scientist
Breeding performance is a broad term, the definition of which varies throughout the literature. In raptor species it is frequently used as an expression that refers to the total number of nestlings that adults can raise to a prescribed age per breeding attempt, however it has also been defined in terms of clutch size, hatching success, and nestling quality (Steenhoff and Newton 2007). Assessing the breeding performance of raptors (combined with assessment of adult survival rates) is crucial to understanding the health and condition of populations and the degree to which they are likely to persist in a given habitat …
A Critical Evaluation Of The Paleocene-Eocene Thermal Maximum: An Example Of Things To Come?, Philip Martin, Stephen Grimes, Hayley Manners, Malcolm Hart
A Critical Evaluation Of The Paleocene-Eocene Thermal Maximum: An Example Of Things To Come?, Philip Martin, Stephen Grimes, Hayley Manners, Malcolm Hart
The Plymouth Student Scientist
The Paleocene–Eocene Thermal Maximum (PETM), arguably the most dramatic hyperthermal event recorded to date, occurred approximately 55 million years ago (Ma). During this event thousands of petagrams of carbon were released into the atmosphere and hydrosphere affecting the climate, ocean chemistry and marine and terrestrial ecosystems. With a duration of approximately 100,000 years (though possibly as long as 170,000 years) and global temperature increases of between 4- 8°C, terrestrial and marine faunal turnover occurred including mammalian dispersal, rapid evolutionary and ecological change and transient diversification. The PETM, therefore, offers a valuable insight into shifts in the climate regime and the …
A Study Evaluating What Best Inspires Visitor Behaviour And Attitude Changes In Zoos, With A Small Botanical Garden Comparison: Addressing Zoos' Educational And Subsequent Conservation Values, Sophie Lancaster
The Plymouth Student Scientist
The planet is currently under intense stress, though unsustainable consumption carries on rising at an exponential rate. One explanation for this is ignorance, especially within developed nations. Governments and industry are under extensive pressure to increase awareness, if we are to achieve a sustainable future and prevent the loss of the natural world. Zoos with their high visitation numbers have a significant role to play in educating the public, which they declare as a main goal. This study focuses on how zoos can better achieve this educational and subsequent conservation goal by looking into what learning techniques at Dartmoor Zoo …
Sowfia Project - Work Package 4 Interim Report, T Simas, D Magagna, I Bailey, D Conley, D Greaves, J O’Callaghan, D Marina, J-B Saulnier, J Sundberg, C Embling
Sowfia Project - Work Package 4 Interim Report, T Simas, D Magagna, I Bailey, D Conley, D Greaves, J O’Callaghan, D Marina, J-B Saulnier, J Sundberg, C Embling
School of Geography, Earth and Environmental Sciences
No abstract provided.
Effect Of Osmotic Potential Of Activator Solution And Temperature On Viability And Vigour Of Wheat Seed, Mp Fuller, J Hamza
Effect Of Osmotic Potential Of Activator Solution And Temperature On Viability And Vigour Of Wheat Seed, Mp Fuller, J Hamza
School of Biological and Marine Sciences
Experiment was conducted to investigate if seed priming with polyethylene glycol (PEG) activator solutions affects the viability and vigour of deteriorating wheat (Triticum aestivum L. cv. Caxton) seed lot. Seeds were subjected to PEG priming solutions with varying osmotic potentials (-1, -2, -3 MPa) at temperatures of 15 or 20°C for 6, 12, 18 or 24 h and compared to the non-primed control. Highest germination percentage at first and final count, length of plumule and dry weight of seedling were all associated with Treatment 1 MPa/20°C/6 h (92%, 94%, 9.2 cm, 0.0133 mg, respectively) compared to the control (82.5%, 86%, …
Lack Of Variation At Phosphoglucose Isomerase (Pgi) In Bumblebees: Implications For Conservation Genetics Studies, Jonathan S. Ellis, Lucy M. Turner, Mairi E. Knight
Lack Of Variation At Phosphoglucose Isomerase (Pgi) In Bumblebees: Implications For Conservation Genetics Studies, Jonathan S. Ellis, Lucy M. Turner, Mairi E. Knight
School of Biological and Marine Sciences
Assessing genetic variation underlying ecologically important traits is increasingly of interest and importance in population and conservation genetics. For some groups generally useful markers exist for examining the relative role of selection and drift in shaping genetic diversity e.g. the major histocompatibility complex in vertebrates and self-incompatibility loci in plants. For invertebrates there is no such generally useful locus. However, phosphoglucose isomerase (Pgi) has been proposed as a useful functional marker in the conservation genetics of invertebrates. Where thermal microclimate varies, balanced polymorphisms may be maintained due to trade-offs between thermally stable and kinetically advantageous allelic forms. We here report …
Identifying Common Pressure Pathways From A Complex Network Of Human Activities To Support Ecosystem-Based Management, Am Knights, Rs Koss, La Robinson
Identifying Common Pressure Pathways From A Complex Network Of Human Activities To Support Ecosystem-Based Management, Am Knights, Rs Koss, La Robinson
School of Biological and Marine Sciences
The marine environment is heavily exploited, but unintentional consequences cause wide‐ranging negative effects to its characteristics. Linkage frameworks (e.g., DPSIR [driver–pressure–state–impact–response]) are commonly used to describe an interaction between human activities and ecological characteristics of the ecosystem, but as each linkage is viewed independently, the diversity of pressures that affect those characteristics may not be identified or managed effectively. Here we demonstrate an approach for using linkages to build a simple network to capture the complex relationships arising from multiple sectors and their activities. Using data‐analysis tools common to ecology, we show how linkages can be placed into mechanistically similar …
Icub World: Friendly Robots Help Building Good Vision Data-Sets, Sr Fanello, C Ciliberto, M Santoro, L Natale, Et Al
Icub World: Friendly Robots Help Building Good Vision Data-Sets, Sr Fanello, C Ciliberto, M Santoro, L Natale, Et Al
School of Engineering, Computing and Mathematics
In this paper we present and start analyzing the iCub World data-set, an object recognition data-set, we acquired using a Human-Robot Interaction (HRI) scheme and the iCub humanoid robot platform. Our set up allows for rapid acquisition and annotation of data with corresponding ground truth. While more constrained in its scopes-the iCub world is essentially a robotics research lab-we demonstrate how the proposed data-set poses challenges to current recognition systems. The iCubWorld data-set is publicly available © 2013 IEEE.
Severe Impact And Subsequent Recovery Of A Coral Assemblage Following The 1997–8 El Niño Event: A 17-Year Study From Bahia, Brazil, Francisco Kelmo, Martin J. Attrill
Severe Impact And Subsequent Recovery Of A Coral Assemblage Following The 1997–8 El Niño Event: A 17-Year Study From Bahia, Brazil, Francisco Kelmo, Martin J. Attrill
School of Biological and Marine Sciences
No abstract provided.
Probiotics, Prebiotics And Immunomodulation Of Gut Mucosal Defences: Homeostasis And Immunopathology., Holly Hardy, Jennifer Harris, Eleanor Lyon, Jane Beal, Andrew D. Foey
Probiotics, Prebiotics And Immunomodulation Of Gut Mucosal Defences: Homeostasis And Immunopathology., Holly Hardy, Jennifer Harris, Eleanor Lyon, Jane Beal, Andrew D. Foey
School of Biomedical Sciences
Probiotics are beneficial microbes that confer a realistic health benefit on the host, which in combination with prebiotics, (indigestible dietary fibre/carbohydrate), also confer a health benefit on the host via products resulting from anaerobic fermentation. There is a growing body of evidence documenting the immune-modulatory ability of probiotic bacteria, it is therefore reasonable to suggest that this is potentiated via a combination of prebiotics and probiotics as a symbiotic mix. The need for probiotic formulations has been appreciated for the health benefits in "topping up your good bacteria" or indeed in an attempt to normalise the dysbiotic microbiota associated with …
Elucidating The Structural Properties That Influence The Persistence Of Pcbs In Humans Using The National Health And Nutrition Examination Survey (Nhanes) Dataset., David Megson, Gwen O'Sullivan, Sean Comber, Paul J. Worsfold, Maeve C. Lohan, Melanie R. Edwards, Walter J. Shields, Courtney D. Sandau, Donald G. Patterson
Elucidating The Structural Properties That Influence The Persistence Of Pcbs In Humans Using The National Health And Nutrition Examination Survey (Nhanes) Dataset., David Megson, Gwen O'Sullivan, Sean Comber, Paul J. Worsfold, Maeve C. Lohan, Melanie R. Edwards, Walter J. Shields, Courtney D. Sandau, Donald G. Patterson
School of Geography, Earth and Environmental Sciences
In human exposure studies involving Polychlorinated Biphenyls (PCBs), it is useful to establish when an individual was potentially exposed. Age dating PCB exposure is complex but assessments can be made because different PCB congeners have different residence times in the human body. The less chlorinated congeners generally tend to have shorter residence times because they are biotransformed and eliminated faster than more chlorinated congeners. Therefore, the presence of high proportions of less chlorinated congeners is often indicative of recent exposure. The 2003-04 National Health and Nutrition Examination Survey (NHANES) dataset contains results for the concentration of 37 PCBs in a …
Hepatitis C Virus, Cholesterol And Lipoproteins — Impact For The Viral Life Cycle And Pathogenesis Of Liver Disease, Daniel J. Felmlee, Mohamed Lamine Hafirassou, Mathieu Lefevre, Thomas F. Baumert, Catherine Schuster
Hepatitis C Virus, Cholesterol And Lipoproteins — Impact For The Viral Life Cycle And Pathogenesis Of Liver Disease, Daniel J. Felmlee, Mohamed Lamine Hafirassou, Mathieu Lefevre, Thomas F. Baumert, Catherine Schuster
Peninsula Medical School
Hepatitis C virus (HCV) is a leading cause of chronic liver disease, including chronic hepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma. Hepatitis C infection associates with lipid and lipoprotein metabolism disorders such as hepatic steatosis, hypobetalipoproteinemia, and hypocholesterolemia. Furthermore, virus production is dependent on hepatic very-low-density lipoprotein (VLDL) assembly, and circulating virions are physically associated with lipoproteins in complexes termed lipoviral particles. Evidence has indicated several functional roles for the formation of these complexes, including co-opting of lipoprotein receptors for attachment and entry, concealing epitopes to facilitate immune escape, and hijacking host factors for HCV maturation and secretion. Here, we review …
Label-Free Chemically Specific Imaging In Planta With Stimulated Raman Scattering Microscopy, Jessica C. Mansfield, George R. Littlejohn, Mark P. Seymour, Rob J. Lind, Sarah Perfect, Julian Moger
Label-Free Chemically Specific Imaging In Planta With Stimulated Raman Scattering Microscopy, Jessica C. Mansfield, George R. Littlejohn, Mark P. Seymour, Rob J. Lind, Sarah Perfect, Julian Moger
School of Biological and Marine Sciences
No abstract provided.
Report Of The Ices\Nafo Joint Working Group On Deep-Water Ecology (Wgdec), 11–15 March 2013, Floedevigen, Norway., Pj Auster, Oa Bergstad, R Brock, A Colaco, Munoz P Duran, H Ellwood, N Golding, A Grehan, J Hall-Spencer, K Howell, J Ingels, E Kenchington, F Mcintyre, L Monot, Pb Mortensen, F Neat, F Nieto-Conde, C Pinto, S Ross, V Vinnichenko, L Watling
Report Of The Ices\Nafo Joint Working Group On Deep-Water Ecology (Wgdec), 11–15 March 2013, Floedevigen, Norway., Pj Auster, Oa Bergstad, R Brock, A Colaco, Munoz P Duran, H Ellwood, N Golding, A Grehan, J Hall-Spencer, K Howell, J Ingels, E Kenchington, F Mcintyre, L Monot, Pb Mortensen, F Neat, F Nieto-Conde, C Pinto, S Ross, V Vinnichenko, L Watling
School of Biological and Marine Sciences
No abstract provided.
A “Candidate-Interactome” Aggregate Analysis Of Genome-Wide Association Data In Multiple Sclerosis, Rosella Mechelli, Renato Umeton, Claudia Policano, Viviana Annibali, Giulia Coarelli, Vito A.G. Ricigliano, Danila Vittori, Arianna Fornasiero, Maria Chiara Buscarinu, Silvia Romano, Marco Salvetti, Giovanni Ristori
A “Candidate-Interactome” Aggregate Analysis Of Genome-Wide Association Data In Multiple Sclerosis, Rosella Mechelli, Renato Umeton, Claudia Policano, Viviana Annibali, Giulia Coarelli, Vito A.G. Ricigliano, Danila Vittori, Arianna Fornasiero, Maria Chiara Buscarinu, Silvia Romano, Marco Salvetti, Giovanni Ristori
More Faculty of Health Research
No abstract provided.
Sowfia Project - Work Package 2 Final Report, J O’Callaghan, Am O’Hagan, B Holmes, Arjona E Muñoz, Olivares C Huertas, D Magagna, I Bailey, D Greaves, C Embling, M Witt, B Godley, T Simas, Enciso Y Torre, D Marina
Sowfia Project - Work Package 2 Final Report, J O’Callaghan, Am O’Hagan, B Holmes, Arjona E Muñoz, Olivares C Huertas, D Magagna, I Bailey, D Greaves, C Embling, M Witt, B Godley, T Simas, Enciso Y Torre, D Marina
School of Geography, Earth and Environmental Sciences
No abstract provided.
There Is No Dome?, Mike Phillips
There Is No Dome?, Mike Phillips
School of Art, Design and Architecture
Fulldome is slowly emerging from its planetarium shaped incubator into a brave new world of digital projectors, real-time visualisation software, independent content producers and transdisciplinary collaborations. This article takes a slow zoom through the evolution of fulldome. It reflects on the technologies and institutions that have shaped the fulldome orthodoxy and the recent emergence of a digital framework where all the different kinds of technologies, disciplines and media forms fit together. The fulldome may no longer be full of stars, but the emptiness that lies beyond its domed surface offers new imaginings of a ‘future in space’.
Can Theories Of Animal Discrimination Explain Perceptual Learning In Humans?, Chris Mitchell, Geoffrey Hall
Can Theories Of Animal Discrimination Explain Perceptual Learning In Humans?, Chris Mitchell, Geoffrey Hall
School of Psychology
We present a review of recent studies of perceptual learning conducted with nonhuman animals. The focus of this research has been to elucidate the mechanisms by which mere exposure to a pair of similar stimuli can increase the ease with which those stimuli are discriminated. These studies establish an important role for 2 mechanisms, one involving inhibitory associations between the unique features of the stimuli, the other involving a long-term habituation process that enhances the relative salience of these features. We then examine recent work investigating equivalent perceptual learning procedures with human participants. Our aim is to determine the extent …
Resistance To Drought And Salt Stress After Regeneration And Micropropagation., F Hadi, Mp Fuller
Resistance To Drought And Salt Stress After Regeneration And Micropropagation., F Hadi, Mp Fuller
School of Biological and Marine Sciences
Investigation was made to confirm the stability of drought and salt stress tolerance in cauliflower (Brassica oleracea var.botrytis) mutants after regeneration and micropropagation. The N-nitroso-N-ethyleurea (NEU) and N-nitroso-N-methylurea (NMU) induced mutants of cauliflower were created and screened for drought and salt stress tolerance. The highly tolerant mutants were selected, regenerated by tissue culture techniques, screened again for drought and salt tolerance under in-vitro and in-vivo conditions, correlated the response of in vitro and in-vivo plants within a clone. Free proline levels in clones were correlated with stress tolerance. Results confirmed the persistence of mutations in clones with enhanced resistance levels …
Long-Term Trends In Calcifying Plankton And Ph In The North Sea, D Beare, A Mcquatters-Gollop, Der Hammen T Van, M Machiels, Teoh S Jiau, Jm Hall-Spencer
Long-Term Trends In Calcifying Plankton And Ph In The North Sea, D Beare, A Mcquatters-Gollop, Der Hammen T Van, M Machiels, Teoh S Jiau, Jm Hall-Spencer
School of Biological and Marine Sciences
No abstract provided.
Use Of Predictive Habitat Modelling To Assess The Distribution And Extent Of The Current Protection Of ‘Listed’ Deep-Sea Habitats, Rebecca E. Ross, Kerry L. Howell
Use Of Predictive Habitat Modelling To Assess The Distribution And Extent Of The Current Protection Of ‘Listed’ Deep-Sea Habitats, Rebecca E. Ross, Kerry L. Howell
School of Biological and Marine Sciences
No abstract provided.
Msc Assessment Report For Usa Sea Scallop Fishery, D Aldous, Ar Brand, Jm Hall-Spencer
Msc Assessment Report For Usa Sea Scallop Fishery, D Aldous, Ar Brand, Jm Hall-Spencer
School of Biological and Marine Sciences
No abstract provided.
Dynamic Circadian Protein–Protein Interaction Networks Predict Temporal Organization Of Cellular Functions, Thomas Wallach, Katja Schellenberg, Bert Maier, Ravi Kiran Reddy Kalathur, Pablo Porras, Erich E. Wanker, Matthias E. Futschik, Achim Kramer
Dynamic Circadian Protein–Protein Interaction Networks Predict Temporal Organization Of Cellular Functions, Thomas Wallach, Katja Schellenberg, Bert Maier, Ravi Kiran Reddy Kalathur, Pablo Porras, Erich E. Wanker, Matthias E. Futschik, Achim Kramer
School of Biomedical Sciences
No abstract provided.
Modelling The Emergence And Dynamics Of Perceptual Organisation In Auditory Streaming, Rw Mill, Tm Bohm, A Bendixen, I Winkler, Sl Denham
Modelling The Emergence And Dynamics Of Perceptual Organisation In Auditory Streaming, Rw Mill, Tm Bohm, A Bendixen, I Winkler, Sl Denham
School of Psychology
Many sound sources can only be recognised from the pattern of sounds they emit, and not from the individual sound events that make up their emission sequences. Auditory scene analysis addresses the difficult task of interpreting the sound world in terms of an unknown number of discrete sound sources (causes) with possibly overlapping signals, and therefore of associating each event with the appropriate source. There are potentially many different ways in which incoming events can be assigned to different causes, which means that the auditory system has to choose between them. This problem has been studied for many years using …
High-Throughput Phenotyping Of Uropathogenic E. Coli Isolates With Fourier Transform Infrared Spectroscopy., Haitham Alrabiah, Elon Correa, Mathew Upton, Royston Goodacre
High-Throughput Phenotyping Of Uropathogenic E. Coli Isolates With Fourier Transform Infrared Spectroscopy., Haitham Alrabiah, Elon Correa, Mathew Upton, Royston Goodacre
School of Biomedical Sciences
Fourier transform infrared (FT-IR) spectroscopy is an established rapid whole-organism fingerprinting method that generates metabolic fingerprints from bacteria that reflect the phenotype of the microorganism under investigation. However, whilst FT-IR spectroscopy is fast (typically 10 s to 1 min per sample), the approaches for microbial sample preparation can be time consuming as plate culture or shake flasks are used for growth of the organism. We report a new approach that allows micro-cultivation of bacteria from low volumes (typically 200 μL) to be coupled with FT-IR spectroscopy. This approach is fast and easy to perform and gives equivalent data to the …
The Gender And Ethnicity Attainment Gap, Dre Cotton, R George, M Joyner
The Gender And Ethnicity Attainment Gap, Dre Cotton, R George, M Joyner
Plymouth Institute of Education
No abstract provided.
Methodology For Tidal Turbine Representation In Ocean Circulation Model, Thomas Roc, Daniel C. Conley, Deborah Greaves
Methodology For Tidal Turbine Representation In Ocean Circulation Model, Thomas Roc, Daniel C. Conley, Deborah Greaves
School of Biological and Marine Sciences
The present method proposes the use and adaptation of ocean circulation models as an assessment tool framework for tidal current turbine (TCT) array layout optimization. By adapting both momentum and turbulence transport equations of an existing model, the present TCT representation method is proposed to extend the actuator disc concept to 3-D large-scale ocean circulation models. Through the reproduction of experimental flume tests and grid dependency tests, this method has shown its numerical coherence as well as its ability to simulate accurately both momentum and turbulent turbine-induced perturbations in both near and far wakes in a relatively short period of …
Molecular Basis For Jagged-1/Serrate Ligand Recognition By The Notch Receptor, P Whiteman, Bh De Madrid, P Taylor, D Li, Et Al
Molecular Basis For Jagged-1/Serrate Ligand Recognition By The Notch Receptor, P Whiteman, Bh De Madrid, P Taylor, D Li, Et Al
School of Biomedical Sciences
We have mapped a Jagged/Serrate-binding site to specific residues within the 12th EGF domain of human and Drosophila Notch. Two critical residues, involved in a hydrophobic interaction, provide a ligand-binding platform and are adjacent to a Fringe-sensitive residue that modulates Notch activity. Our data suggest that small variations within the binding site fine-tune ligand specificity, which may explain the observed sequence heterogeneity in mammalian Notch paralogues, and should allow the development of paralogue-specific ligand-blocking antibodies. As a proof of principle, we have generated a Notch-1-specific monoclonal antibody that blocks binding, thus paving the way for antibody tools for research and …