Results 71 to 80 of about 204,253 (308)

Changes in the Elemental and Metabolite Profile of Wheat Phloem Sap during Grain Filling Indicate a Dynamic between Plant Maturity and Time of Day

open access: yesMetabolites, 2018
The long distance transport of Fe and Zn in the phloem sap of wheat (Triticum aestivum L.) is the key route for seed supply, due to wheat having a xylem discontinuity.
Lachlan J. Palmer   +1 more
doaj   +1 more source

DIURNAL BEHAVIOR OF SUGARCANE ACID INVERTASE [PDF]

open access: yes, 1973
DIURNAL BEHAVIOR OF SUGARCANE ACID ...
Alexander, Alex G.
core   +1 more source

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

open access: yesThe Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot   +4 more
wiley   +1 more source

Principles of synaptic encoding of brainstem circadian rhythms

open access: yesExperimental Physiology
Circadian regulation of autonomic tone and reflex pathways pairs physiological processes with the daily light cycle. However, the underlying mechanisms mediating these changes on autonomic neurocircuitry are only beginning to be understood. The brainstem
Forrest J. Ragozzino   +2 more
doaj   +1 more source

Diurnal variation of ocular biometrics under natural and defocused conditions [PDF]

open access: yes, 2013
It is well known that a broad range of ocular anatomical and physiological parameters undergo significant diurnal variation. However, the natural diurnal variations that occur in the length of the human eye (axial length) and their underlying causes have
Chakraborty, Ranjay
core  

Les Modeling of a Diurnal Cycle [PDF]

open access: yes, 2007
LES modeling of a diurnal ...
Puhales, F. S.   +7 more
core   +1 more source

Understanding the spacing of placodes in the eye: A comparative study across age and species

open access: yesThe Anatomical Record, EarlyView.
Abstract The conjunctival placodes of the avian eye form in an intriguing and conserved sequence in a circular annulus around the cornea. These 13–16 placodes develop into papillae that are essential for inducing underlying intramembranous flat bones, known as scleral ossicles, which form an important part of the ocular skeleton.
Florence Joseph   +1 more
wiley   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

open access: yesThe Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox   +8 more
wiley   +1 more source

SEASONAL AND DIURNAL VARIATIONS OF ANEURY-SMAL SUBARACHNOID HEMORRHAGE [PDF]

open access: yesActa Medica Iranica, 2006
The seasonal and diurnal variations in the incidence of hypertension, cerebrovascular accident, coronary heart disease were well documented, but the relation between season and daytime on the onset of aneurysmal subarachnoid hemorrhage (ASAH) was a ...
S. M. Rakei   +2 more
doaj   +1 more source

Coevolutionary patterns between coloration and diel activity in moths

open access: yesRoyal Society Open Science
Anti-predator coloration is part of a key survival strategy in animals, often coevolving with behavioural traits such as diel activity. While previous studies have explored the link between conspicuous sexual signals and diurnality, the association ...
Sohee Yoo   +6 more
doaj   +1 more source

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