منابع مشابه
FISH BRANCHIAL Na/NH+ EXCHANGE IS VIA BASOLATERAL Na-K-ACTIVATED ATPase
Krogh (1939) first proposed that freshwater organisms extract needed Na+ in exchange for NHJ to maintain near-electroneutrality across the skin or gills. Maetz & Garcia-Romeu (1964) provided an indirect demonstration of Na/NH^" exchange in the goldfish {Carassius auratus) by showing that injected NH4C1 stimulated Na + uptake, but addition of NH4C1 to the freshwater inhibited Na + uptake. They p...
متن کاملCold and ultracold NH-NH collisions: the field-free case.
We present elastic and inelastic spin-changing cross sections for cold and ultracold NH(X (3)Σ(-)) + NH(X (3)Σ(-)) collisions, obtained from full quantum scattering calculations on an accurate ab initio quintet potential-energy surface. Although we consider only collisions in zero field, we focus on the cross sections relevant for magnetic trapping experiments. It is shown that evaporative cool...
متن کاملCold and ultracold NH-NH collisions in magnetic fields
Elastic and spin-changing inelastic collision cross sections are presented for cold and ultracold magnetically trapped NH. The cross sections are obtained from coupled-channel scattering calculations as a function of energy and magnetic field. We specifically investigate the influence of the intramolecular spin-spin, spin-rotation, and intermolecular magnetic dipole coupling on the collision dy...
متن کاملBilateral branchial cleft fistula.
1. Department of Radiology, Kennemer Gasthuis, Haarlem, The Netherlands, 2. Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands Background: An 8-year-old boy was admitted to the pediatric department with two small lumps a few centimeters above the clavicles, medial from the mid-clavicular line, in a symmetrical arrangement (Fig. 1). Sometimes fluid was leaking out of th...
متن کاملFirst branchial cleft anomaly.
A 15-year-old girl presented with a cystic swelling since birth behind the ramus of the right mandible and diagnosed clinically as a dermoid cyst. Surgical exploration, however, showed that it was closely related to the external auditory canal, with an extension running medially behind the parotid gland and ending in the bony middle ear. The facial nerve was closely related to the deep part of ...
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ژورنال
عنوان ژورنال: Frontiers in Zoology
سال: 2014
ISSN: 1742-9994
DOI: 10.1186/preaccept-7219692771243941