E. Ham results 19
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With over half of people with HIV (PWH) in the U.S. entering older adulthood, identifying markers to distinguish Alzheimer’s disease (AD) and its precursor, amnestic mild cognitive impairment (aMCI), from other forms of neurocognitive impairment among PWH is urgent. We examined how HIV and aMCI status relate to AD CSF biomarkers in adult PWH and people without HIV (PWoH) characterized for aMCI. We included 80 PWH from the Nati...
Advocates, practitioners and policy‐makers continue to use and advocate for marine protected areas (MPAs) to meet global ocean protection targets. Yet many of the worlds MPAs, and especially no‐take MPAs, are plagued by poaching and ineffective governance. Using a global dataset on coral reefs as an example, we quantify the potential ecological gains of governing MPAs to increase compliance, which we call the ‘compliance gap’....
The molar of a giant deer, Megaloceros giganteus (Blumenbach, 1799), was discovered in sandy deposits of the North Sea, about 10 km west of the present shoreline of the Netherlands. Compacted masticated plant remains were preserved in the molar's deep folds. A palaeoecological analysis of these plant remains shows the complete dominance of pollen from Artemisia (sage) and other Asteraceae Tubuliflorae (Compositae), indicating...
An outstanding problem in biogeochemical modelling of the ocean is that many of the key processes occur intermittently at small scales, such as the sub-mesoscale, that are not well represented in global ocean models. This is partly due to their failure to resolve sub-mesoscale phenomena, which play a significant role in vertical nutrient supply. Simply increasing the resolution of the models may be an inefficient computational...
Comparison of growth and RNA: DNA ratios in three populations of juvenile turbot reared at two salinitiesNARA Subscribed
Salinity significantly influenced growth and RNA: DNA ratios in three populations (Iceland. Norway and France) of juvenile turbot Scophthalmus maximus as these variables were higher at 15 than at 33.5‰ salinity. Furthermore, growth and RNA: DNA ratios of the two high latitude populations (Iceland and Norway) were higher than those of the low latitude population (France): the Norwegian and the Icelandic populations had RNA: DNA...
Countergradient variation in growth and food conversion efficiency of juvenile turbotNARA Subscribed
Growth performance of a high latitude (Norway) population of juvenile turbot Scophthalmus maximus , was superior to that of two other lower latitude populations (Scotland, France) especially at 18° and 22° C. Overall these results lend some support to the hypothesis of countergradient variation in growth. The Norwegian population had the highest estimated temperature optimum for growth ( T opt.G , ±S.E.) (23·0±0·9°C) and food...
Geographic variation in growth and food conversion efficiency of juvenile Atlantic halibut related to latitudeNARA Subscribed
Higher growth capacity and food conversion efficiency was observed in populations of juvenile halibut from high Hippoglossus hippoglossus compared lower latitudes. In addition, temperature adaptation shown by the lower temperature optimum for growth in the Norwegian population (mean±S.E. 12·9±0·10 C) compared with the Icelandic and Canadian populations (14·2±0·2 and 13·9±0±30 C respectively), seems to occur. Overall the data s...
To determine the long‐term impact of elevated CO 2 on primary production of native tallgrass prairie, we compared the responses of tallgrass prairie at ambient and twice‐ambient atmospheric CO 2 levels over an 8‐year period. Plots in open‐top chambers (4.5 m diameter) were exposed continuously (24 h) to ambient and elevated CO 2 from early April to late October each year. Unchambered plots were monitored also. Above‐ground pea...
Why Don't Chimpanzees in Gabon Crack Nuts?NARA Subscribed
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