نتایج جستجو برای: concentration costs
تعداد نتایج: 554648 فیلتر نتایج به سال:
a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...
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This article examines (i) the background and debate over cost shifting; (ii) hospitals as business institutions that often shift the financial responsibility for their costs in the form of differential pricing; and (iii) how the cost-shifting debate affects and is affected by Medicare. The aim is to gain a better understanding of how changes in reimbursement by large government health insurance...
The costs attributed to employee health problems are usually measured by employers in terms of direct health care costs, such as medical plan claims. Although it has been understood that employee health problems also produce indirect costs for employers, their measurement has been far less frequent. At best, studies have recorded one component of indirect health costs: the time lost to employee...
Background We assessed direct and indirect costs associated with COPD in Sweden and examined how these costs vary across time, age, and disease stage in a cohort of patients with COPD and matched controls in a real-world, primary care (PC) setting. Patients and methods Data from electronic medical records linked to the mandatory national health registers were collected for COPD patients and a...
BACKGROUND This study aimed at identifying components of the household health costs. METHODS This study was a qualitative research conducted in two main phases. The first phase consisted of interviews with sample households selected in eight provinces of Iran. They were to identify components of the household health costs. In the second phase, components were determined as direct, indirect an...
In this paper the problem of minimum cost communication network design is considered where the costs are piecewise linear concave. Several methods are compared: Simulated Annealing method, a heuristic based on the method proposed by Minoux, and a lagrangian method based on lower bounding procedure.
BACKGROUND Outpatient treatment of uncomplicated acute diverticulitis is safe and effective. The aim of this study was to determine the impact of outpatient treatment on the reduction of healthcare costs. PATIENTS AND METHODS A retrospective cohort study comparing 2 groups was performed. In the outpatient treatment group, patients diagnosed with uncomplicated acute diverticulitis were treated...
Direct Red 81, a dye widely used in textile industries, is frequently detected dye in water resources. High costs, the formation of hazardous byproducts, and high energy costs restrict the use of some removal methods. Therefore, the main objectives of this research are the feasibility of using soil containing iron as a low cost adsorbent to remove (Direct Red 81) from aqueo...
poly-β-hydroxybutyrate (phb), produced by several species of bacteria, has attracted great attention as a biodegradable and biocompatible compound with almost similar properties of polypropylene. unfortunately, its use is currently limited due to high production costs. one of the most common methods for overcoming this constraint is the use of inexpensive substrates, like methanol. another stra...
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