Results 41 to 50 of about 10,748,107 (348)

Assessing the impact of aging and blood pressure on dermal microvasculature by reactive hyperemia optical coherence tomography angiography

open access: yesScientific Reports, 2021
Visualization and quantification of the skin microvasculature are important for studying the health of the human microcirculation. We correlated structural and pathophysiological changes of the dermal capillary-level microvasculature with age and blood ...
Michael Wang-Evers   +11 more
doaj   +1 more source

Towards a quantum evolutionary scheme: violating Bell's inequalities in language [PDF]

open access: yes, 2004
We show the presence of genuine quantum structures in human language. The neo-Darwinian evolutionary scheme is founded on a probability structure that satisfies the Kolmogorovian axioms, and as a consequence cannot incorporate quantum-like evolutionary ...
Aerts, Diederik   +2 more
core   +5 more sources

Botulinum Neurotoxins: Biology, Pharmacology, and Toxicology

open access: yesPharmacological Reviews, 2017
The study of botulinum neurotoxins (BoNT) is rapidly progressing in many aspects. Novel BoNTs are being discovered owing to next generation sequencing, but their biologic and pharmacological properties remain largely unknown.
M. Pirazzini   +3 more
semanticscholar   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

Biology Careers on the Internet

open access: yesIssues in Science and Technology Librarianship, 1998
Large volumes of information related to biology are found on the Internet and World Wide Web. Student interests in biology are stimulated and sustained by many factors.
Frederick W. Stoss
doaj   +1 more source

Biological Mechanisms Underlying Physical Fitness and Sports Performance: An Editorial

open access: yesBiology, 2022
In general, the concept of a mechanism in biology has three distinct meanings [...]
Georgian Badicu   +2 more
doaj   +1 more source

Freshwater biology and water supply in Britain [PDF]

open access: yes, 1946
This paper is designed to give a general account of freshwater biology as it bears on waterworks practice. Most water that is used for consumption will commonly go through a storage reservoir.
Gardiner, A.C.   +2 more
core  

Development and Cell Biology of the Blood-Brain Barrier.

open access: yesAnnual Review of Cell and Developmental Biology, 2019
The vertebrate vasculature displays high organotypic specialization, with the structure and function of blood vessels catering to the specific needs of each tissue.
Urs H. Langen, S. Ayloo, Chenghua Gu
semanticscholar   +1 more source

General and Social Biology [PDF]

open access: yesNature, 1942
THE article by Mrs. S. Neville Rolfe in NATURE of January 24, p. 90, calls for comment and support. Does it occur to the average man that, except at some schools, everything taught is factual, with definite conclusions? For example, history, geography, grammar, mathematics, physics and chemistry all produce definite results. But when we enter the world
openaire   +2 more sources

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

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