Results 121 to 130 of about 167,360 (278)

Ligand-dependent reactivity of the CysB5[23] b sulfhydryl group of the major haemoglobin of chicken [PDF]

open access: yes, 1997
Chicken haemoglobin contains eight reactive sulfhydryl groups per (tetramer) molecule, as determined by Boyer titration with p-chloromercury(II)benzoic acid. However, only four of these sulfhydryls are reactive towards 5,5@-dithiobis(2-nitrobenzoic acid)
Nwozo, Sarah, Okonjo, K. O.
core  

Chronic insomnia, REM sleep instability and emotional dysregulation: A pathway to anxiety and depression?

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary The world‐wide prevalence of insomnia disorder reaches up to 10% of the adult population. Women are more often afflicted than men, and insomnia disorder is a risk factor for somatic and mental illness, especially depression and anxiety disorders.
Dieter Riemann   +13 more
wiley   +1 more source

Wintering Barnacle Geese Exhibit an Increased Behavioural Drive for Sleep After Sleep Deprivation Without a Clear EEG‐Based Sleep Rebound

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Sleep is essential for normal physiological functioning, and sleep deprivation is typically compensated by increasing subsequent sleep duration and/or intensity. However, a recent study showed that barnacle geese (Branta leucopsis) exhibit seasonal variation in sleep homeostasis, with full recovery of sleep after sleep deprivation in summer ...
Robin Pijnacker   +4 more
wiley   +1 more source

Elevation, rather than land use, causes important dietary shifts in the Mediterranean golden eagle

open access: yesJournal of Zoology, EarlyView.
In an ever‐changing landscape, golden eagles in the Iberian Peninsula demonstrate remarkable dietary adaptability. We monitored 50 distinct breeding events over 4 years using camera traps, collecting over 520 000 images. Elevation, rather than land use, emerged as the main driver of prey composition: lagomorphs and columbiforms dominated at lower ...
D. Gambra   +7 more
wiley   +1 more source

Optimization of Enzymatic Hydrolysis Process and Characterization of Antioxidant and Anti-aging Peptides from Pigeon Blood

open access: yesShipin gongye ke-ji
In order to achieve a high-value utilization of pigeon blood, a by-product during the processing of meat pigeon, this study focused on the preparation of antioxidant and anti-aging peptides from pigeon blood through enzymatic hydrolysis.
Yuanhong ZHANG   +4 more
doaj   +1 more source

Medical students' experiences in providing medical care to older patients: A rich picture study

open access: yesMedical Education, EarlyView.
Abstract Introduction With an ageing population, future doctors must be prepared to care for older patients facing complex and often chronic needs. Despite curricular efforts, medical students often report less positive attitudes towards providing this care—shaped not only by knowledge gaps but also by cultural norms and the hidden curriculum.
Emma J. Draper   +5 more
wiley   +1 more source

Comparative Anatomical and Histological Study of the Stomach in Two Iraqi Birds (Columba palumbus and Tyto alba)

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
The present study aimed to investigate the anatomical and histological, aspects of the stomach in two different Iraqi birds, (common wood pigeon, Columba palumbus (herbivorous) and the barn owl, Tyto alba (carnivorous).
Rasha W. Al-Juboory   +2 more
doaj  

Error detection is not necessary for representation

open access: yesMind &Language, EarlyView.
Some philosophers have recently proposed an error detection condition (EDC) for representation, such that for R$$ R $$ to be a representation for system S$$ S $$, S$$ S $$ must be capable of detecting errors in tokenings of R$$ R $$. We argue that this condition is unmotivated, and that it is too strong. We show that theories of representation that are
Ori Hacohen, Kenneth Aizawa
wiley   +1 more source

Marécages, une pollution par essence? Conditions d'une écopoétique des marais et autres zones humides au XXe siècle

open access: yesOrbis Litterarum, EarlyView.
Abstract To expose the pollution of marshes and swamps, whether by hydrocarbons or other contaminants, the French or Francophone author of the twentieth century must first confront a literary tradition that equates stagnant water with a volatile poison and, more broadly, wetlands with toxic environments. In his article “Wetland Gloom and Wetland Glory,”
François Sagot
wiley   +1 more source

MtDNA genetic diversity and phylogeographic insights into giant domestic pigeon (Columba livia domestica) breeds: connections between Central Europe and the Middle East

open access: yesPoultry Science
: Humans have selectively bred domestic pigeons (Columba livia domestica) to create breeds with a diversity of shapes, colors and other attributes. Since Darwin, the domestic pigeon has always been a popular model species for scientific research because ...
K. Balog   +7 more
doaj   +1 more source

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