Browsing School of Natural Sciences by Title
Now showing items 21-40 of 1040
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Abnormal notochord branching is associated with foregut malformations in the adriamycin treated mouse model.
(University of Edinburgh (datashare), 2011)Oesophageal atresia (OA) and tracheooesophageal fistula (TOF) are relatively common human congenital malformations of the foregut where the oesophagus does not connect with the stomach and there is an abnormal connection ... -
ACC and vaterite as metastable intermediates in the solution based crystallization of CaCO3
(Springer International Publishing, 2017)Amorphous calcium carbonate (ACC) and vaterite are not very common in abiotic systems, but they play a very significant role in biomineralization processes and are key in the global carbon cycle. Despite their importance, ... -
Acid Treatment effects on the stable isotopic signature of fossils
(2012)Prior to geochemical analyses, fossil bones and teeth are often extracted from any surrounding lithified sediments using chemical techniques such as immersion in acid. As stable isotope analysis becomes more commonplace ... -
Acoustic imaging of variable water layer structure in Rockall Trough, NE Atlantic
(Trinity College (Dublin, Ireland). Department of Geology, 2012)A new application of an old technique to study the Earth’s interior is allowing us to see stratification in the ocean, providing a new insight into oceanic structure and mixing processes. The new adaptation of seismic ... -
Acritarch and prasinophyte colours as thermal maturity indicators
(Trinity College (Dublin, Ireland). Department of Geology, 2006)Measurement of changes in the reflectivity of vitrinite (fossil woody material) in incident light is the standard technique for assessing the organic maturity of sedimentary rocks. However, vitrinite grains are rare or ... -
Activation of host constitutive immune defence by an intestinal trypanosome parasite of bumble bees
(Cambridge University Press, 2003)Many parasites have to survive the harsh environment of insect guts to complete their life-cycle. Important parasites of man and animals pass part of their life cycle in insect guts and hence understanding how insects ... -
Addressing fundamental behavioural and welfare issues associated with zoo housed animals : using lowland tapirs Tapirus terrestrius and giraffes Giraffa camelopardalis as model species
(Trinity College (Dublin, Ireland). Department of Zoology, 2002)Introduction: Zoos, living museums and menageries have been around since early Egyptian and Roman times. Throughout the ages zoos have developed a more important role than merely exhibits. Nowadays, zoos serve a major role ... -
Advances in the detection of particulate matter and aerosols in peat: Exploring Icelandic volcanic activity and multi-source deposition in Ireland
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2024)This Ph.D. research project develops new techniques for the detection of particulate matter and aerosols in peat, a relatively underexplored atmospheric archive and carries out novel investigations of atmospheric deposition ... -
Advancing understanding and prediction in multiple stressor research through a mechanistic basis for null models
(Wiley, 2018)Global environmental change is driven by multiple anthropogenic stressors. Conservation and restoration require understanding the individual and joint action of these stressors to evaluate and prioritize management measures. ... -
Aeolian sediment transport pathways and aerodynamics at troughs on Mars
(2004)Interaction between wind regimes and topography can give rise to complex suites of aeolian landforms. This paper considers aeolian sediment associated with troughs on Mars and identifies a wider range of deposit types ... -
Age of the oldest known Homo sapiens from eastern Africa
(2022)Efforts to date the oldest modern human fossils in eastern Africa, from Omo-Kibish and Herto in Ethiopia, have drawn on a variety of chronometric evidence, including 40Ar/39Ar ages of stratigraphically associated tuffs. ... -
Agricultural policies exacerbate honeybee pollination service supply-demand mismatches across europe.
(2014)Declines in insect pollinators across Europe have raised concerns about the supply of pollination services to agriculture. Simultaneously, EU agricultural and biofuel policies have encouraged substantial growth in the ... -
An agronomic assessment of greenhouse gas emissions from major cereal crops
(2012)Agricultural greenhouse gas (GHG) emissions contribute approximately 12% to total global anthropogenic GHG emissions. Cereals (rice, wheat, and maize) are the largest source of human calories, and it is estimated that world ... -
The Akcal Epithermal Deposit: An Example of Low-Sulfidation Gold Mineralization in Western Turkey
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2023)The Akcal epithermal Au-Ag deposit is located on the Biga Peninsula, southwestern Turkey and is estimated to contain 32.5 million tonnes of mineralization at an average grade of 1.03 g/t Au, equivalent to 33.5 tonnes of ... -
Allopolyploidy, diversification, and the Miocene grassland expansion
(2014)The role of polyploidy, particularly allopolyploidy, in plant diversification is a subject of debate. Whole-genome duplications precede the origins of many major clades (e.g., angiosperms, Brassicaceae, Poaceae), suggesting ... -
Alternative nitrate reduction pathways in sandy sediments hosting Submarine Groundwater Discharge (SGD)
(Trinity College (Dublin, Ireland). Department of Geography, 2012)Submarine Groundwater Discharge (SGD) is now recognized as an important transport vector of nutrients to the coastal ocean. The role of benthic sandy ecosystems in mitigating SGD NO3- loads to coastal marine ecosystems is ...