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Low-tone air-bone gaps after endolymphatic sac surgery
Auris Nasus Larynx, 2011We detected chronic low-tone air-bone gaps (LTABGs) in some patients with Meniere's disease after endolymphatic sac surgery. The aim of the present study was to elucidate the mechanism of LTABGs after endolymphatic sac surgery.We investigated 50 patients with Meniere's disease, who underwent surgery more than two years prior. LTABGs were defined as the
Tadashi, Kitahara +6 more
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Ring-Stabilization Technique for Collection of Avian Air Sacs
American Journal of Veterinary Research, 1980SUMMARY Histologic features of chicken air-sac membranes harvested with rings were compared with those of membranes collected on cards. Ring stabilization of the tissues throughout fixation, dehydration, and embedment was found to reduce markedly the artifacts and the loss of normal tissue architecture observed within the wall of card-collected air ...
D W, Trampel, O J, Fletcher
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Incomplete gas mixing in air sacs of the duck
Respiration Physiology, 1980During normal breathing, the CO2 concentration in caudal air sacs of birds is higher, and the O2 concentration lower, than expected on the basis of the known air flow pattern. We have experimentally tested two hypotheses which could explain this finding: (1) Preferential shunting of re-inspired dead space gas into caudal air sacs; (2) Incomplete mixing
J R, Torre-Bueno, J, Geiser, P, Scheid
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Development of the Laryngeal Air Sac in Chimpanzees
International Journal of Primatology, 2007Though many nonhuman primates possess a laryngeal sac, the great apes are unique in their great size. Though an enlarged sac probably arose in their common ancestor, its functional adaptations remain a matter of debate. Its development in extant great apes is likely to provide valuable information to clarify the issue.
Takeshi Nishimura +3 more
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Air sacs insufficient for penguin pressure protection
Journal of Experimental Biology, 2015![Figure][1] Emperor penguin at Cape Washington, Antarctica. Photo credit: Paul Ponganis. Anyone who has tried diving will know the uncomfortable feeling of water pressing on their ears.
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Evidence for bird‐like air sacs in saurischian dinosaurs
Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 2009AbstractAmong extant tetrapods, pneumatic postcranial bones are only present in birds, and they are osteological correlates of the diverticular lungs and pulmonary air sacs. The presence of postcranial pneumaticity in sauropod and theropod dinosaurs suggests that some form of air sac system was also present in the dinosaurian ancestors of birds.
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SACs on Non‐Carbon Substrates: Can They Outperform for Water Splitting?
Advanced Functional Materials, 2023Tao Sun, John Wang
exaly
Polyoxometalate‐Single Atom Catalysts (POM‐SACs) in Energy Research and Catalysis
Advanced Energy Materials, 2021Rongji Liu, Carsten Streb
exaly