Results 91 to 100 of about 4,649,360 (247)

Navigating troubled waters: Posthumanist vulnerability and entanglement in Richard Powers's Playground (2024)

open access: yesOrbis Litterarum, EarlyView.
Abstract Richard Powers's most recent novels to date—The Overstory (2018), Bewilderment (2021), and Playground (2024)—engage with some of the environmental and technological threats that loom over our planet, such as deforestation, species loss, the degradation of the ocean bottom, and the risks associated with the development of generative AI ...
Carmen Laguarta‐Bueno
wiley   +1 more source

A Journey Between Science and the Arts: Templates for the Depiction of the Pineapple (Sixteenth to Eighteenth Centuries)

open access: yesRenaissance Studies, EarlyView.
ABSTRACT Native to America, the pineapple—Ananas comosus (L.) Merr.—delighted the Europeans who came across it. The fruit was mentioned by the voyagers and missionaries who observed and tasted it in the Americas and, from the 1500s onwards, infused reports, chronicles and natural history treatises with colour and flavour.
Teresa Nobre de Carvalho
wiley   +1 more source

Modulation of cerebral blood flow and cognition by hyperthermia and hypoxia: An electroencephalographic event‐related potentials perspective

open access: yesExperimental Physiology, EarlyView.
Abstract Cerebral blood flow (CBF) is essential for sustaining neuronal metabolism and cognitive performance; however, the precise relationship between perfusion and cognition remains unclear. Although ageing and disease are associated with progressive declines in CBF and cognitive impairment, the acute effects of altered CBF under environmental ...
Hiroki Nakata   +2 more
wiley   +1 more source

Is resting muscle sympathetic nerve activity related to peripheral or cerebrovascular haemodynamics at high altitude? A retrospective analysis

open access: yesExperimental Physiology, EarlyView.
Abstract High‐altitude hypoxia elicits several profound physiological responses, including substantial increases in muscle sympathetic nerve activity (MSNA); however, the association of this heightened MSNA with cardiovascular and cerebrovascular haemodynamics remains unclear in lowlanders and indigenous highlander populations.
Ty J. A. MacDonald   +19 more
wiley   +1 more source

SCARFISH: A new SCAR action group to co‐ordinate Antarctic fish research

open access: yes
Journal of Fish Biology, EarlyView.
Jilda Alicia Caccavo   +57 more
wiley   +1 more source

Pulmonary arterial mechanoreceptors mediate sustained sympathoexcitation during high altitude hypoxia in humans

open access: yesExperimental Physiology, EarlyView.
Abstract Sympathetic nervous system activation is a hallmark of high‐altitude hypoxia, yet the afferent mechanisms remain incompletely defined. We examined the relative contributions of pulmonary arterial mechanoreceptors and carotid chemoreceptors – two excitatory pathways co‐activated by hypoxia – to sustained sympathoexcitation at altitude.
Michiel T. Ewalts   +13 more
wiley   +1 more source

Ser ou não ser consiliente: eis a questão

open access: yesHistória, Ciências, Saúde: Manguinhos, 2001
Stephen J. Gould e Edward Wilson são autores emblemáticos de duas tendências opostas do darwinismo. A primeira defende a separação entre os duros fatos da natureza, tal como nos são apresentados pela teoria da seleção natural, e as questões de valor e ...
Cruz Eduardo Rodrigues
doaj  

Daily hot‐water immersion preserves altitude‐induced haemoglobin mass expansion following descent independent of erythropoietin

open access: yesExperimental Physiology, EarlyView.
Abstract High‐altitude exposure increases haemoglobin mass (Hbmass), a key determinant of arterial oxygen‐carrying capacity, but following descent this adaptation can regress toward baseline within 7 days. Long‐term heat acclimation has emerged as an alternative stimulus for Hbmass expansion; however, whether post‐altitude passive‐heat exposure can ...
Elliott J. Jenkins   +12 more
wiley   +1 more source

Effect of chronic high‐altitude hypoxia on retinal vascular phenotype, choroidal and retinal vasoreactivity in Peruvian highlanders

open access: yesExperimental Physiology, EarlyView.
Abstract High‐altitude chronic hypoxia can induce excessive erythrocytosis (EE, defined as a haemoglobin concentration of ≥21 g/dL in men), leading to hyperviscosity and promoting endothelial dysfunction. We aimed to assess whether EE affects the retinal vascular phenotype and the ophthalmological vascular response to CO2.
Aymeric Paillisser   +12 more
wiley   +1 more source

Traumatic arteriovenous fistula after ice axe injury 27 years ago: A case report

open access: yesExperimental Physiology, EarlyView.
Abstract We report a case of a traumatic arteriovenous fistula (AVF) between the superficial femoral artery and femoral vein that went undetected for 27 years following an ice axe injury during a climbing accident in 1997. An AVF is an abnormal connection between an artery and a vein, where blood flows directly from the high‐flow arterial system to the
Kate N. Thomas   +4 more
wiley   +1 more source

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