We develop a general model of the renal medulla that is similar m geometry to the models reported by others. Two solutes are assumed to be present, one to play the role of salt and the other that of urea and similarly handled compounds. The equations fr’om irreversible thermodynamics are used to describe simultaneous solvent and solute flow across tubular membranes and a salt pump, saturable in...

Participants in 401(k) retirement plans violate the basic principle of diversification by investing significant fractions of their savings in their employers’ equity. This paper characterizes investors’ active changes to their company stock investment over time by analyzing new inflows and transfers. The average investor seems to base active changes on salient information, paying attention to p...

The effects of expression of the Drosophila melanogaster Trpl protein, which is thought to encode a putative Ca2+ channel [Phillips, Bull and Kelly (1992) Neuron 8, 631-642], on divalent cation inflow in Xenopus laevis oocytes were investigated. The addition of extracellular Ca2+ ([Ca2+]0) to oocytes injected with trpl cRNA and to mock-injected controls, both loaded with the fluorescent Ca2+ in...

GENERALIZED hypothermia, as employed in cardiac surgery,' involves a number of factors, some of which are of benefit, others detrimental to myocardial performance. For example, the decreased arterial pressure and the increased blood viscosity tend to reduce coronary blood flow. On the other hand, the reduced metabolic rate of heart muscle, the diminished cardiac work, and the lengthened time fo...

The blade shape is of great interest to hybrid turbine designers, due its significant and direct impact on performance. inlet outlet diameters the vane affect size rotor, which limited because small space available in internal combustion engines. effect ratio average diameter exducer performance a mixed will be focus this study, consists two cases included herein for purpose illustrating means ...

Delva, E., Camus, Y., Nordlinger, B., Honnoun, L., Parc, R., Deriaz, H., Lienhart, A. and Huguet, C. (1989) Vascular Occlusions for Liver Resections Operative Management and Tolerance to Hepatic Ischemia: 142 Cases. Annals o.f Surgery, 209, 211-218. The intraand early postoperative courses of 142 consecutive patients who underwent liver resections using vascular occlusions to reduce bleeding we...

Turbine is one of the key components ocean thermal energy conversion system (OTEC), and its aerodynamic performance geometric dimension affect directly. This paper proposes a design method for radial inflow turbine suitable based on parameter optimization system. Aiming at application characteristics marine in small temperature difference environment special thermophysical properties organic wo...

Attempts had been made by many authors to develop an inflow performance relationship model suitable for solution gas drive reservoirs. However, they have not as successful most of the developed models suffer from certain degrees inaccuracies and this necessitates need improved economic analysis oilfield greatly depends on ability accurately forecast future productions. Therefore, objective rese...

Inflow/infiltration (I/I) and infiltration/exfiltration (I/E) are interactive processes which dynamically affect sewer and groundwater performance. The incidence and condition of "critical" sewers in the UK are identified together with methods of quantifying I/I and I/E as well as their impact on wet weather sewer performance and on urban groundwater pollution. Whilst the impacts of sewer trenc...