نتایج جستجو برای: concentration costs
تعداد نتایج: 554648 فیلتر نتایج به سال:
We tested the hypothesis that wing muscle size and triglyceride production mediate a lifehistory trade-off between wing morph (or flight capability) and early fecundity. Roff et al. recently selected for lower number of eggs laid in the first week by Gryllus firmus (sand cricket) and reported a correlated increase in long-winged (and presumably flight-capable) females, but did not test structur...
asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...
1. Plants defend and predators attack, provoking the foraging dilemma faced by herbivores and frugivores of how to eat enough without being eaten. High toxin concentration in leaves and fruits inhibits consumption, while predation risk reduces feeding opportunities, as prey forage to avoid encountering predators. Thus, both factors vary and define the quality of the landscape. How foraging anim...
Calls for medical care cost containment are all around us. Although the evidence that costs are too high is strong, the evidence that they are rising too quickly is much weaker. The principal cause of increasing costs appears to be the increased capabilities of medicine; the scant evidence available suggests that to date the public has wanted to pay for most of these capabilities. Effective glo...
The paper surveys the various economic costs associated with terrorism. Particularly important is the distinction between the direct and the indirect costs. While many terrorist attacks cause substantial amounts of property damage and create casualties, most of the costs associated with terrorism involve the indirect costs. Although terrorism can reduce a nation’s overall growth rate, the costs...
The present study applied a receiver operating characteristic (ROC) analysis to assess the role of intraindividual variability of cyclosporin A (CsA) drug exposure in predisposing renal transplant recipients to the occurrence of chronic rejection, as well as to increased health care costs using a resource-based economic analysis. Two hundred and four adult renal transplant recipients were treat...
Results of a survey conducted in the summer of 1985 of beneficiaries of the Arizona Health Care Cost Containment System and a matched group of Medicaid beneficiaries concerning their access to and satisfaction with medical care services are described in this article. The Arizona Health Care Cost Containment System is an alternative to Medicaid's acute medical care coverage. The results of the s...
BACKGROUND Schizophrenia is a disabling mental disorder with high prevalence and that usually requires long-term follow-up and expensive lifelong treatment. The cost of schizophrenia treatment consumes a significant amount of the health services' budget in western countries. OBJECTIVE The aim of the study was to find out about the costs related to schizophrenia across different european coun...
In this research, biological removal of phenol and orthonitrophenol (2NP) pollutants from wastewater by continuous moving bed sequencing batch reactor (MSBR) was studied. The experiments were conducted in various operational conditions to find out the optimum level of the significant parameters. Best performance for removal of Phenols was achieved when parameter...
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