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Articles 2581 - 2610 of 2981
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A Study Into The Impacts Of Water Table And Nitrogen Pulse On Cellulose Decomposition Rates And Carbon Release In Active Peatland, Matthew Culf
The Plymouth Student Scientist
Since the 1980s overstocking of sheep has become an increasing problem on UK uplands. This study examined the effect of livestock urination, and also water table depth, on active peatland on cellulose decomposition and fluvial carbon release. Urination was simulated using synthetic sheep urine (SSU) and applied to quadrats of active peatland at Redlake Mire on South Dartmoor and compared to quadrats without SSU treatment. Cellulose decomposition was measured using the cotton strip assay (CSA) method as a measure of microbial activity by examining a loss in tensile strength of cotton strips buried for 45 days from September 20th to …
Bayesian Methods To Determine Performance Differences And To Quantify Variability Among Centers In Multi-Center Trials: The Ihast Trial, Eo Bayman, Km Chaloner, Bj Hindman, Mm Todd, Ihast Investigators
Bayesian Methods To Determine Performance Differences And To Quantify Variability Among Centers In Multi-Center Trials: The Ihast Trial, Eo Bayman, Km Chaloner, Bj Hindman, Mm Todd, Ihast Investigators
Peninsula Medical School
BACKGROUND: To quantify the variability among centers and to identify centers whose performance are potentially outside of normal variability in the primary outcome and to propose a guideline that they are outliers. METHODS: Novel statistical methodology using a Bayesian hierarchical model is used. Bayesian methods for estimation and outlier detection are applied assuming an additive random center effect on the log odds of response: centers are similar but different (exchangeable). The Intraoperative Hypothermia for Aneurysm Surgery Trial (IHAST) is used as an example. Analyses were adjusted for treatment, age, gender, aneurysm location, World Federation of Neurological Surgeons scale, Fisher score …
A Cost-Effectiveness Analysis Of Water Security And Water Quality: Impacts Of Climate And Land-Use Change On The River Thames System, P. G. Whitehead, J. Crossman, B. B. Balana, M. N. Futter, S. Comber, L. Jin, D. Skuras, Aj Wade, M. J. Bowes, D. S. Read
A Cost-Effectiveness Analysis Of Water Security And Water Quality: Impacts Of Climate And Land-Use Change On The River Thames System, P. G. Whitehead, J. Crossman, B. B. Balana, M. N. Futter, S. Comber, L. Jin, D. Skuras, Aj Wade, M. J. Bowes, D. S. Read
School of Geography, Earth and Environmental Sciences
The catchment of the River Thames, the principal river system in southern England, provides the main water supply for London but is highly vulnerable to changes in climate, land use and population. The river is eutrophic with significant algal blooms with phosphorus assumed to be the primary chemical indicator of ecosystem health. In the Thames Basin, phosphorus is available from point sources such as wastewater treatment plants and from diffuse sources such as agriculture. In order to predict vulnerability to future change, the integrated catchments model for phosphorus (INCA-P) has been applied to the river basin and used to assess …
Understanding Long-Term Changes In Species Abundance Using A Niche-Based Approach, P Helaouët, G Beaugrand, M Edwards
Understanding Long-Term Changes In Species Abundance Using A Niche-Based Approach, P Helaouët, G Beaugrand, M Edwards
School of Biological and Marine Sciences
One of the major challenges to understanding population changes in ecology for assessment purposes is the difficulty in evaluating the suitability of an area for a given species. Here we used a new simple approach able to faithfully predict through time the abundance of two key zooplanktonic species by focusing on the relationship between the species' environmental preferences and their observed abundances. The approach is applied to the marine copepods Calanus finmarchicus and C. helgolandicus as a case study characterising the multidecadal dynamics of the North Sea ecosystem. We removed all North Sea data from the Continuous Plankton Recorder (CPR) …
Sowfia Project - Work Package 4 Final Report, T Simas, Am O’Hagan, I Bailey, D Greaves, D Marina, J Sundberg, Crom I Le
Sowfia Project - Work Package 4 Final Report, T Simas, Am O’Hagan, I Bailey, D Greaves, D Marina, J Sundberg, Crom I Le
School of Geography, Earth and Environmental Sciences
No abstract provided.
Fingerprinting Polychlorinated Biphenyls In Environmental Samples Using Comprehensive Two-Dimensional Gas Chromatography With Time-Of-Flight Mass Spectrometry, David Megson, Robert Kalin, Paul J. Worsfold, Caroline Gauchotte-Lindsay, Pdg Jr, Maeve C. Lohan, Sean Comber, Thomas A. Brown, Gwen O'Sullivan
Fingerprinting Polychlorinated Biphenyls In Environmental Samples Using Comprehensive Two-Dimensional Gas Chromatography With Time-Of-Flight Mass Spectrometry, David Megson, Robert Kalin, Paul J. Worsfold, Caroline Gauchotte-Lindsay, Pdg Jr, Maeve C. Lohan, Sean Comber, Thomas A. Brown, Gwen O'Sullivan
School of Geography, Earth and Environmental Sciences
No abstract provided.
Beyond The Digital City - Remediating Space At A Regional Scale, K Willis, A Aurigi
Beyond The Digital City - Remediating Space At A Regional Scale, K Willis, A Aurigi
School of Art, Design and Architecture
There has been a great deal of research on the effects of digital media and ICT’s on the urban condition. Similarly the impacts on social and community based structures and networks of the use of new forms of communication and interaction through technology has been studies from a range of perspectives, but with very little critique of the complex urban nature of such media. Yet ICT’s and new modes of remote communication are having, and have had significant effects on communities that are not cutting edge high urban settings but rather at regional and rural scales. These settings have different …
The Memory City Project: Part Of The Portfolio Memory City, I Rae
The Memory City Project: Part Of The Portfolio Memory City, I Rae
School of Art, Design and Architecture
No abstract provided.
Enabling Wave Power: Streamlining Processes For Progress, D Greaves, C Perez-Collazo, D Magagna, D Conley, I Bailey, T Simas, B Holmes, Am O'Hagan, J O'Callagahn, Encirso Y Torre, D Marina, Olivares C Huertas, Crom I Le, Jb Saulnier, J Sundberg, C Embling, M Witt, B Goodley, Leitão J Chambel
Enabling Wave Power: Streamlining Processes For Progress, D Greaves, C Perez-Collazo, D Magagna, D Conley, I Bailey, T Simas, B Holmes, Am O'Hagan, J O'Callagahn, Encirso Y Torre, D Marina, Olivares C Huertas, Crom I Le, Jb Saulnier, J Sundberg, C Embling, M Witt, B Goodley, Leitão J Chambel
School of Engineering, Computing and Mathematics
No abstract provided.
Above-Ground Biomass And Structure Of 260 African Tropical Forests, Simon L. Lewis, Bonaventure Sonké, Terry Sunderland, Serge K. Begne, Gabriela Lopez-Gonzalez, Der Heijden Gmf Van, Oliver L. Phillips, Kofi Affum-Baffoe, Timothy R. Baker, Lindsay Banin, Jean François Bastin, Hans Beeckman, Pascal Boeckx, Jan Bogaert, Cannière C De, Eric Chezeaux, Connie J. Clark, Murray Collins, Gloria Djagbletey, Marie Noël K. Djuikouo, Vincent Droissart, Jean Louis Doucet, Cornielle E.N. Ewango, Sophie Fauset, Ted R. Feldpausch, Ernest G. Foli, Jean François Gillet, Alan C. Hamilton, David J. Harris, Terese B. Hart, Haulleville T De, Annette Hladik, Koen Hufkens, Dries Huygens, Philippe Jeanmart, Kathryn J. Jeffery, Elizabeth Kearsley, Miguel E. Leal, Jon Lloyd, Jon C. Lovett, Jean Remy Makana, Yadvinder Malhi, Andrew R. Marshall, Lucas Ojo, Kelvin S.H. Peh, Georgia Pickavance, John R. Poulsen, Jan M. Reitsma, Douglas Sheil, Murielle Simo, Kathy Steppe, Hermann E. Taedoumg, Joey Talbot, James R.D. Taplin, David Taylor, Sean C. Thomas, Benjamin Toirambe, Hans Verbeeck, Jason Vleminckx, Lee J.T. White, Simon Willcock, Hannsjorg Woell, Lise Zemagho
Above-Ground Biomass And Structure Of 260 African Tropical Forests, Simon L. Lewis, Bonaventure Sonké, Terry Sunderland, Serge K. Begne, Gabriela Lopez-Gonzalez, Der Heijden Gmf Van, Oliver L. Phillips, Kofi Affum-Baffoe, Timothy R. Baker, Lindsay Banin, Jean François Bastin, Hans Beeckman, Pascal Boeckx, Jan Bogaert, Cannière C De, Eric Chezeaux, Connie J. Clark, Murray Collins, Gloria Djagbletey, Marie Noël K. Djuikouo, Vincent Droissart, Jean Louis Doucet, Cornielle E.N. Ewango, Sophie Fauset, Ted R. Feldpausch, Ernest G. Foli, Jean François Gillet, Alan C. Hamilton, David J. Harris, Terese B. Hart, Haulleville T De, Annette Hladik, Koen Hufkens, Dries Huygens, Philippe Jeanmart, Kathryn J. Jeffery, Elizabeth Kearsley, Miguel E. Leal, Jon Lloyd, Jon C. Lovett, Jean Remy Makana, Yadvinder Malhi, Andrew R. Marshall, Lucas Ojo, Kelvin S.H. Peh, Georgia Pickavance, John R. Poulsen, Jan M. Reitsma, Douglas Sheil, Murielle Simo, Kathy Steppe, Hermann E. Taedoumg, Joey Talbot, James R.D. Taplin, David Taylor, Sean C. Thomas, Benjamin Toirambe, Hans Verbeeck, Jason Vleminckx, Lee J.T. White, Simon Willcock, Hannsjorg Woell, Lise Zemagho
School of Geography, Earth and Environmental Sciences
We report above-ground biomass (AGB), basal area, stem density and wood mass density estimates from 260 sample plots (mean size: 1.2 ha) in intact closed-canopy tropical forests across 12 African countries. Mean AGB is 395.7 Mg dry mass ha −1 (95% CI: 14.3), substantially higher than Amazonian values, with the Congo Basin and contiguous forest region attaining AGB values (429 Mg ha −1 ) similar to those of Bornean forests, and significantly greater than East or West African forests. AGB therefore appears generally higher in palaeo- compared with neotropical forests. However, mean stem density is low (426 ± 11 stems …
Juvenile King Scallop, Pecten Maximus, Is Potentially Tolerant To Low Levels Of Ocean Acidification When Food Is Unrestricted, Mb Sanders, Tp Bean, Th Hutchinson, Quesne Wjf Le
Juvenile King Scallop, Pecten Maximus, Is Potentially Tolerant To Low Levels Of Ocean Acidification When Food Is Unrestricted, Mb Sanders, Tp Bean, Th Hutchinson, Quesne Wjf Le
School of Geography, Earth and Environmental Sciences
No abstract provided.
Development Of A Chemical Source Apportionment Decision Support Framework For Catchment Management, Sdw Comber, R Smith, P Daldorph, Et Al
Development Of A Chemical Source Apportionment Decision Support Framework For Catchment Management, Sdw Comber, R Smith, P Daldorph, Et Al
School of Geography, Earth and Environmental Sciences
EU legislation, including the Water Framework Directive, has led to the application of increasingly stringent quality standards for a wide range of chemical contaminants in surface waters. This has raised the question of how to determine and to quantify the sources of such substances so that measures can be taken to address breaches of these quality standards using the polluter pays principle. Contaminants enter surface waters via a number of diffuse and point sources. Decision support tools are required to assess the relative magnitudes of these sources and to estimate the impacts of any programmes of measures. This work describes …
Development Of A Chemical Source Apportionment Decision Support Framework For Catchment Management., Sean D.W. Comber, Russell Smith, Peter Daldorph, Michael J. Gardner, Carlos Constantino, Brian Ellor
Development Of A Chemical Source Apportionment Decision Support Framework For Catchment Management., Sean D.W. Comber, Russell Smith, Peter Daldorph, Michael J. Gardner, Carlos Constantino, Brian Ellor
School of Geography, Earth and Environmental Sciences
EU legislation, including the Water Framework Directive, has led to the application of increasingly stringent quality standards for a wide range of chemical contaminants in surface waters. This has raised the question of how to determine and to quantify the sources of such substances so that measures can be taken to address breaches of these quality standards using the polluter pays principle. Contaminants enter surface waters via a number of diffuse and point sources. Decision support tools are required to assess the relative magnitudes of these sources and to estimate the impacts of any programmes of measures. This work describes …
Benthic Foraminifera Show Some Resilience To Ocean Acidification In The Northern Gulf Of California, Mexico., L. R. Pettit, M. B. Hart, A. N. Medina-Sánchez, C. W. Smart, R. Rodolfo-Metalpa, J. M. Hall-Spencer, R. M. Prol-Ledesma
Benthic Foraminifera Show Some Resilience To Ocean Acidification In The Northern Gulf Of California, Mexico., L. R. Pettit, M. B. Hart, A. N. Medina-Sánchez, C. W. Smart, R. Rodolfo-Metalpa, J. M. Hall-Spencer, R. M. Prol-Ledesma
School of Geography, Earth and Environmental Sciences
Extensive CO2 vents have been discovered in the Wagner Basin, northern Gulf of California, where they create large areas with lowered seawater pH. Such areas are suitable for investigations of long-term biological effects of ocean acidification and effects of CO2 leakage from subsea carbon capture storage. Here, we show responses of benthic foraminifera to seawater pH gradients at 74-207m water depth. Living (rose Bengal stained) benthic foraminifera included Nonionella basispinata, Epistominella bradyana and Bulimina marginata. Studies on foraminifera at CO2 vents in the Mediterranean and off Papua New Guinea have shown dramatic long-term effects of acidified seawater. We found living …
Influence Of Sediment Redox Conditions On Uranium Mobilisation During Saline Intrusion, Jane Eagling, Paul J. Worsfold, William H. Blake, Miranda J. Keith-Roach
Influence Of Sediment Redox Conditions On Uranium Mobilisation During Saline Intrusion, Jane Eagling, Paul J. Worsfold, William H. Blake, Miranda J. Keith-Roach
School of Geography, Earth and Environmental Sciences
No abstract provided.
Assessing The Exposure Risk And Impacts Of Pharmaceuticals In The Environment On Individuals And Ecosystems, Ke Arnold, Aba Boxall, Ar Brown, Rj Cuthbert, S Gaw, Th Hutchinson, S Jobling, Jc Madden, Cd Metcalfe, V Naidoo, Rf Shore, Je Smits, Ma Taggart, Hm Thompson
Assessing The Exposure Risk And Impacts Of Pharmaceuticals In The Environment On Individuals And Ecosystems, Ke Arnold, Aba Boxall, Ar Brown, Rj Cuthbert, S Gaw, Th Hutchinson, S Jobling, Jc Madden, Cd Metcalfe, V Naidoo, Rf Shore, Je Smits, Ma Taggart, Hm Thompson
School of Geography, Earth and Environmental Sciences
The use of human and veterinary pharmaceuticals is increasing. Over the past decade, there has been a proliferation of research into potential environmental impacts of pharmaceuticals in the environment. A Royal Society-supported seminar brought together experts from diverse scientific fields to discuss the risks posed by pharmaceuticals to wildlife. Recent analytical advances have revealed that pharmaceuticals are entering habitats via water, sewage, manure and animal carcases, and dispersing through food chains. Pharmaceuticals are designed to alter physiology at low doses and so can be particularly potent contaminants. The near extinction of Asian vultures following exposure to diclofenac is the key …
Recognizing Detachment-Mode Seafloor Spreading In The Deep Geological Past., Marco Maffione, Antony Morris, Mark W. Anderson
Recognizing Detachment-Mode Seafloor Spreading In The Deep Geological Past., Marco Maffione, Antony Morris, Mark W. Anderson
School of Geography, Earth and Environmental Sciences
Large-offset oceanic detachment faults are a characteristic of slow- and ultraslow-spreading ridges, leading to the formation of oceanic core complexes (OCCs) that expose upper mantle and lower crustal rocks on the seafloor. The lithospheric extension accommodated by these structures is now recognized as a fundamentally distinct “detachment-mode” of seafloor spreading compared to classical magmatic accretion. Here we demonstrate a paleomagnetic methodology that allows unequivocal recognition of detachment-mode seafloor spreading in ancient ophiolites and apply this to a potential Jurassic detachment fault system in the Mirdita ophiolite (Albania). We show that footwall and hanging wall blocks either side of an inferred …
School Project: Determining The Predominant Learning Style From The Vak Learning Styles Model In Ks2 To Enhance Environmental Education, Connie Land
The Plymouth Student Scientist
There is a need to improve the delivery of environmental education as it struggles to establish itself within the curriculum, it would be more beneficial if environmental issues were to become embedded in the whole curriculum rather than currently being confined to science/geography. Environmental issues such as climate change means that it is imperative that young children are effectively educated in order to develop a more ecocentric viewpoint of the world. The aim of this research was to investigate if there was a predominant learning style from the VAK (visual, auditory and kinaesthetic) model that is most effective for the …
The Effect Of Induced Incidental Disgust On Attitudes Towards Physical Disabilities: Does Intergroup Disgust Sensitivity Moderate?, Elaine Squires
The Effect Of Induced Incidental Disgust On Attitudes Towards Physical Disabilities: Does Intergroup Disgust Sensitivity Moderate?, Elaine Squires
The Plymouth Student Scientist
The present study investigated whether induced incidental disgust affected attitudes towards individuals with physical disabilities and whether intergroup disgust sensitivity (ITG-DS) would moderate this effect. Thirty seven participants were randomly assigned to either the induced disgust or control condition. They completed two measures: ITG-DS scale and an attitudes scale. As expected, manipulation of disgust was successful (p < .001). The pattern of means was in the predicted direction. Those who were induced to disgust (vs. control) reported more negative attitudes; as did those with greater ITG-DS (vs. lower ITG-DS). Those induced to disgust and greater ITG-DS reported more negative attitudes (vs. control and lower ITG-DS); suggesting an interaction. This extends the findings of incidental emotions and prejudice.
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.
Six Decades Of Total Factor Productivity Change And Sources Of Growth In Bangladesh Agriculture (1948–2008), S Rahman, R Salim
Six Decades Of Total Factor Productivity Change And Sources Of Growth In Bangladesh Agriculture (1948–2008), S Rahman, R Salim
School of Geography, Earth and Environmental Sciences
This study applies the Färe–Primont index to calculate total factor productivity (TFP) indices for agriculture in 17 regions of Bangladesh covering a 61-year period (1948–2008). It decomposes the TFP index into six finer components (technical change, technical-, scale- and mix-efficiency changes, residual scale- and residual mix-efficiency changes). Results reveal that TFP grew at an average rate of 0.57% p.a. led by the Chittagong, Rajshahi, Rangpur, Dinajpur and Noakhali regions. TFP growth is largely powered by technological progress estimated at 0.74% p.a. Technical efficiency improvement is negligible (0.01% p.a.) due to stagnant efficiency in most of the regions. Decline in scale …
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 …
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.
Isotopic Evidence For Long Term Warmth In The Mesozoic., Gregory D. Price, Richard J. Twitchett, James R. Wheeley, Giuseppe Buono
Isotopic Evidence For Long Term Warmth In The Mesozoic., Gregory D. Price, Richard J. Twitchett, James R. Wheeley, Giuseppe Buono
School of Geography, Earth and Environmental Sciences
Atmospheric CO2 concentrations appear to have been considerably higher than modern levels during much of the Phanerozoic and it has hence been proposed that surface temperatures were also higher. Some studies have, however, suggested that Earth's temperature (estimated from the isotopic composition of fossil shells) may have been independent of variations in atmospheric CO2 (e.g. in the Jurassic and Cretaceous). If large changes in atmospheric CO2 did not produce the expected climate responses in the past, predictions of future climate and the case for reducing current fossil-fuel emissions are potentially undermined. Here we evaluate the dataset upon which the Jurassic …
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 …
The Impact Of Global Warming And Anoxia On Marine Benthic Community Dynamics: An Example From The Toarcian (Early Jurassic)., S Danise, Rj Twitchett, Ct Little, Me Clémence
The Impact Of Global Warming And Anoxia On Marine Benthic Community Dynamics: An Example From The Toarcian (Early Jurassic)., S Danise, Rj Twitchett, Ct Little, Me Clémence
School of Geography, Earth and Environmental Sciences
The Pliensbachian-Toarcian (Early Jurassic) fossil record is an archive of natural data of benthic community response to global warming and marine long-term hypoxia and anoxia. In the early Toarcian mean temperatures increased by the same order of magnitude as that predicted for the near future; laminated, organic-rich, black shales were deposited in many shallow water epicontinental basins; and a biotic crisis occurred in the marine realm, with the extinction of approximately 5% of families and 26% of genera. High-resolution quantitative abundance data of benthic invertebrates were collected from the Cleveland Basin (North Yorkshire, UK), and analysed with multivariate statistical methods …
Pesticide Consumption And Productivity And The Potential Of Ipm In Bangladesh, S Rahman
Pesticide Consumption And Productivity And The Potential Of Ipm In Bangladesh, S Rahman
School of Geography, Earth and Environmental Sciences
The paper analyses trends in consumption, productivity and the determinants of pesticide use in Bangladesh over a 33 year period (1977-2009), including a discussion on the scope to expand Integrated Pest Management (IPM) practices. Pesticide use grew at an alarming rate of 10.0% per year (p<0.01) although the corresponding response in yield growth of major crops has been minimal (<1.0% per year). Pesticide productivity (i.e., 'gross value added from crops at constant prices' per 'kg of active ingredients of all pesticides used') is declining steadily at a rate of -8.6% per year (p<0.01). Adoption of Green Revolution (GR) technology, crop diversification, average farm size and literacy rate are the most significant determinants of pesticide use, whereas research and development (R&D) investment depresses pesticide use. Consistent evidence of excessive pesticide use in Bangladesh was observed. Although the government has shifted focus from pesticide use to IPM, its coverage remains inadequate as only 7.4% of the total farmers are covered after 30 years of effort. Tighter pesticide regulation and its effective implementation, and expansion of IPM through public, private and non-governmental organisation (NGO) stakeholders are suggested to reduce pesticide consumption.
Experiences Of Pilgrimage In Lithuania: Expressions Of Values And Identity At New Destinations, Darius Liutikas
Experiences Of Pilgrimage In Lithuania: Expressions Of Values And Identity At New Destinations, Darius Liutikas
Journal of Tourism Consumption and Practice
This article looks at destination places and the extent of religious and secular pilgrimages in Lithuanian society. Destination image of a particular place is unique, as it is constructed from travellers own values, identity, memories, associations and imaginations of the place. The focus is on the phenomenology of destination image and expression of values and identity during valuistic journeys (pilgrimage). Values can embody religious, national, cultural or other collective ideals, or they may be unique to the individual. The article discusses destination places in Lithuania and investigates the main groups of geographical destinations that give meaning to the identity of …