G. Hooper results 28
· Newest (Page 1/2, per page 25)
Author: G. Hooper ×Clear All Filters
Search Results
Deformation, seismicity, and monitoring response preceding and during the 2022 Fagradalsfjall eruption, IcelandNARA Subscribed
Following two periods of dike intrusion in 2021 at Fagradalsfjall, Iceland, one of which led to an eruption, a third dike intrusion commenced on 30 July 2022. A sudden increase in seismicity occurred within the diking area, with approximately 1700 automatically detected earthquakes > M1 within 24 h. Strong earthquakes were felt over several days within a wider area (largest M W 5.3). The timeline and spatial distribution of se...
Prolonging survival in good health is a fundamental societal goal. However, the leading determinants of disability-free survival in healthy older people have not been well established. Data from ASPREE, a bi-national placebo-controlled trial of aspirin with 4.7 years median follow-up, was analysed. At enrolment, participants were healthy and without prior cardiovascular events, dementia or persistent physical disability. Disab...
Sharing and reporting benefits from biodiversity researchNARA Subscribed
Wild fish populations are currently experiencing unprecedented pressures, which are projected to intensify in the coming decades. Developing a thorough understanding of the influences of both biotic and abiotic factors on fish populations is a salient issue in contemporary fish conservation and management. During the 50th Anniversary Symposium of The Fisheries Society of the British Isles at the University of Exeter, UK, in Ju...
Estimating local biodiversity change: a critique of papers claiming no net loss of local diversityNARA Subscribed
Global species extinction rates are orders of magnitude above the background rate documented in the fossil record. However, recent data syntheses have found mixed evidence for patterns of net species loss at local spatial scales. For example, two recent data meta‐analyses have found that species richness is decreasing in some locations and is increasing in others. When these trends are combined, these papers argued there has b...
Will increased storm disturbance affect the biodiversity of intertidal, nonscleractinian sessile fauna on coral reefs?NARA Subscribed
Relatively little is known about how the future effects of climatic change, including increases in sea level, temperature and storm severity and frequency, will impact on patterns of biodiversity on coral reefs, with the notable exception of recent work on corals and fish in tropical reef ecosystems. Sessile invertebrates such as ascidians, sponges and bryozoans occupying intertidal rubble habitats on coral reefs contribute si...
Summary Bacterial aerobic ammonium oxidation and anaerobic ammonium oxidation (anammox) are important processes in the global nitrogen cycle. Key enzymes in both processes are the octahaem cytochrome c (OCC) proteins, hydroxylamine oxidoreductase (HAO) of aerobic ammonium‐oxidizing bacteria (AOB), which catalyses the oxidation of hydroxylamine to nitrite, and hydrazine oxidoreductase (HZO) of anammox bacteria, which converts h...
Evolution of an octahaem cytochrome c protein family that is key to aerobic and anaerobic ammonia oxidation by bacteriaNARA Subscribed
Summary The biogeochemical nitrogen cycle is mediated by many groups of microorganisms that harbour octahaem cytochromes c (OCC). In this study molecular evolutionary analyses and the conservation of predicted functional residues and secondary structure were employed to investigate the descent of OCC proteins related to hydroxylamine oxidoreductase (HAO) and hydrazine oxidoreductase (HZO) from pentahaem cytochrome c nitrite re...