Publications by authors named "P H Roberts"

Article Synopsis
  • Pandemic influenza vaccine development emphasizes the importance of hemagglutinin (HA) and neuraminidase (NA) antibodies for effective immune responses.
  • Clinical trials show that NA inhibition antibody responses increase with higher doses and extended intervals between vaccine doses, indicating a potential strategy for enhancing immunity.
  • The study indicates that while neuraminidase responses can be improved for better pandemic preparedness, the antibody responses to the HA stalk were minimal and not long-lasting.
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Successful plant growth requires plants to minimize harm from antagonists and maximize benefit from mutualists. However, these outcomes may be difficult to achieve simultaneously, since plant defenses activated in response to antagonists can compromise mutualism function, and plant resources allocated to defense may trade off with resources allocated to managing mutualists. Here, we investigate how antagonist attack affects plant ability to manage mutualists with sanctions, in which a plant rewards cooperative mutualists and/or punishes uncooperative mutualists.

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Over the past decade, multidisciplinary research has seen the Amazon Basin go from a context perceived as unfavourable for food production and large-scale human societies to one of 'garden cities', domestication, and anthropogenically influenced forests and soils. Nevertheless, direct insights into human interactions with particular crops and especially animals remain scarce across this vast area. Here we present new stable carbon and nitrogen isotope data from 86 human and 68 animal remains dating between CE ~700 and 1400 from the Llanos de Mojos, Bolivia.

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Background: White stroke survivors often experience better outcome compared to their counterparts. Poststroke discharge location influences the subsequent rehabilitation that can support recovery and improve outcomes. However, few studies have looked at the association of race and discharge to home.

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Human treponemal infections are caused by a family of closely related Treponema pallidum that give rise to the diseases yaws, bejel, pinta and, most famously, syphilis. Debates on both a common origin for these pathogens and the history of syphilis itself has weighed evidence for the "Columbian hypothesis", which argues for an American origin, against that for the "pre-Columbian hypothesis", which argues for presence of the disease in Eurasia in the Medieval period and possibly earlier. While molecular data has provided a genetic basis for distinction of the typed subspecies, deep evolution of the complex has remained unresolved due to limitations in the conclusions that can be drawn from the sparse paleogenomic data currently available.

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