منابع مشابه
oculo-cardiac reflex during strabismus surgery
purpose: to evaluate the incidence of the oculo-cardiac reflex (ocr) and its associated risk factors during strabismus surgeries performed at a tertiary referral center between 1390 and 1392. methods: over a 2-year period, all strabismus surgery candidates were enrolled in the study after obtaining consent from the patients or their parents. vital signs were recorded before the initiation of th...
متن کاملThe oculorespiratory cardiac reflex in the dog.
Intraorbital and intracranial electrical stimulation as compared with manual eye pressure indicates that in the dog the afferent pathway for the oculorespiratory cardiac reflex is carried by the ophthalmic division of the fifth cranial nerve. The effects on cardiac and respiratory arrythmia produced by using intravenous atropine have demonstrated that, although reflex bradycardia can be abolish...
متن کاملOn Abrams’ theorem
Abrams’ theorem describes a necessary and sufficient condition for the closedness of a linear image of an arbitrary set. Closedness conditions of this type play an important role in the theory of duality in convex programming. In this paper we present generalizations of Abrams’ theorem, as well as Abrams-type theorems characterizing other properties (such as relatively openness or polyhedrality...
متن کاملNonlinearities of the human carotid baroreceptor-cardiac reflex.
Carotid baroreceptors of nine healthy young men and women were stretched or compressed with neck suction or pressure, before and after beta-adrenergic and cholinergic blockade, to evaluate several nonlinearities of sinus node baroreflex responses. Sinus node inhibition was related linearly to the intensity of brief baroreceptor stimuli over a range extending from carotid-distending pressures of...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1903
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(01)36342-0