In this paper, the issue of whether willingness to pay (WTP) for the benefits generated by a public good should be elicited on an individual or a household basis is addressed. Differences between individual and household WTP may arise when members of the household are mutually altruistic. It is shown that, for general specifications of altruism, household WTP is less than the sum of household m...

Abstract The main objective of net pay determination, as an important step any reservoir study, is to exclude non-reservoir intervals so that better results are obtained from characterization, hydrocarbon in-place calculations, and dynamic flow simulation the reservoir. This study a comprehensive presentation most applicable methods available for highlighting their strengths, limitations, input...

The global carbon cycle is part of the much more extensive sedimentary cycle that involves large masses of carbon in the Earth’s inner and outer spheres. Studies of the carbon cycle generally followed a progression in knowledge of the natural biological, then chemical, and finally geological processes involved, culminating in a more or less integrated picture of the biogeochemical carbon cycle ...

Companies today have to adopt strategies that embrace both a closer reaction to the customers’ needs and efficiency. Mass customisation meets this challenge by offering individually customised goods and services with mass production efficiency. According to a number of recent surveys, there is evidence for the increasing importance of this strategy in various industries. But what do the custome...

Abstract The current work assesses the sandstones of Mutulla Formation as well limestone Thebes for being promising new oil reservoirs in Rabeh East field at southern portion Gulf Suez Basin. This assessment has been achieved through petrophysical evaluation wireline logs three wells (RE-8, RE-22 and RE-25). visual analysis data revealed that RE-25 Well is only demonstrating positive criteria f...

Casparian bands of endodermis and exodermis play crucial roles in blocking apoplastic movement of ions and water into the stele of roots through the cortex. These apoplastic barriers differ considerably in structure and function along the developing root. The present study assessed net Na+ fluxes in anatomically distinct root zones of rice seedlings and analyzed parts of individual roots showin...

BACKGROUND Understanding the feasibility of achieving widespread coverage with Insecticide-Treated Nets has to be preceded by learning how people value the Insecticide-Treated Nets and estimating the potential demand and willingness to pay so that sustainability of the intervention can be assured. The objective of this study was to determine willingness to pay for Insecticide-Treated Nets among...

Tall fescue leaf blades elongate at near constant rates during most of the light and dark periods of the diurnal cycle, with the dark rate being higher by 60 to 65%. Our objective was to determine relationships among diurnal rates of leaf elongation, deposition of water and deposition of dry matter (DM) into the elongation zone. Two separate experiments were conducted, both with a 15-hour photo...