We performed a prospective, double-blinded study in 20 patients undergoing gynecologic surgery with lower abdominal incision, to investigate characteristics of intrathecal hyperbaric levobupivacaine compared with isobaric levobupivacaine. We randomly assigned them to receive 3 mL of either isobaric or hyperbaric 0.42% levobupivacaine intrathecally. We found that hyperbaric levobupivacaine, comp...

BACKGROUND AND OBJECTIVES Unilateral spinal anesthesia may be advantageous, especially in the outpatient setting. Low local anesthetic doses, slow spinal injection rate and the lateral position have been related to the easiness of inducing unilateral spinal anesthesia. This study aimed at investigating the possibility of inducing unilateral spinal anesthesia with isobaric 0.5% bupivacaine. ME...

Abstract We present a new family of fast and robust methods for the calculation vapor–liquid equilibrium at isobaric‐isothermal (PT‐flash), isochoric‐isothermal (VT‐flash), isenthalpic‐isobaric (HP‐flash), isoenergetic‐isochoric (UV‐flash) conditions. The framework is provided by formulating phase‐equilibrium conditions multi‐component mixtures in an effectively reduced space based on molar spe...

Marked hyperglycemia (blood glucose ∼14 mmol/l) slows gastric emptying and affects the perception of sensations arising from the gut. Elevation of blood glucose within the physiological range also slows gastric emptying. This study aimed to determine whether physiological changes in blood glucose affect proximal gastric compliance and/or the perception of gastric distension in the fasting state...

An irreversible cycle model of a Braysson heat engine operating between two heat reservoirs is used to investigate the thermoeconomic performance of the cycle affected by the finite-rate heat transfer between the working fluid and the heat reservoirs, heat leak loss from the heat source to the ambient and the irreversibility within the cycle. The thermoeconomic objective function, defined as th...

It is shown that in water of finite depth, there are no periodic traveling waves with the property that the pressure in the underlying fluid flow is constant along streamlines. In the case of infinite depth, there is only one such solution, which is due to Gerstner.

Let F be a number field and K a quadratic algebra over F , i.e., either F × F or a quadratic field extension of F . Denote by G the F -group defined by GL(2)/K. Then, given any cuspidal automorphic representation π of G(AF ), one has (cf. [8], [9]) a transfer to an isobaric automorphic representation Π of GL4(AF ) corresponding to the L-homomorphism LG → LGL(4). Usually, Π is called the Rankin-...

INTRODUCTION Bupivacaine is anesthetic often used in spinal anesthesia in the hyperbaric form (with factory-made incorporated 8.25% glucose), and in isobaric form without additives, (so-called "plain"). Baricity manipulation of local anesthetic is made for the better match of necessary and achieved level of sensor block. Too high block is unnecessary and can compromise the patient's hemodynamic...

In specially constructed thermal diffusion columns separations between the isotopic mixtures 1 2 C 1 8 0/ 1 2 C 1 6 0 and 1 4 C 1 6 0/ 1 2 C 1 6 0 were measured at average temperatures ranging from T = 260 ° K to T = 465 °K . At temperatures above 320 ° K 1 4C 1 60 concentrates more strongly in the cold region than 1 2 C , 8 0 . Below this temperature the opposite effect is taking place: the th...