901 resultados para Handling Facilities


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Audit report on the Iowa Water Pollution Control Works Financing Program (Clean Water Program) and the Iowa Drinking Water Facilities Financing Program (Drinking Water Program), joint programs of the Iowa Finance Authority and the Iowa Department of Natural Resources, for the year ended June 30, 2006

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BACKGROUND: Sodium wasting during the night has been postulated as a potential pathophysiological mechanism in patients suffering from orthostatic hypotension due to severe autonomic deficiency. METHODS: In this study, the diurnal variations in creatinine clearance, sodium excretion and segmental renal tubular handling of sodium were evaluated in 18 healthy subjects and 20 young patients with orthostatic hypotension (OH). In addition, 24-hour ambulatory blood pressure and the neuro-hormonal response to changes in posture were determined. The patients and their controls were studied on a free sodium intake. In a second protocol, 10 controls and 10 patients were similarly investigated after one week of a high salt diet (regular diet + 6 g NaCl/day). RESULTS: Our results demonstrate that, in contrast to normal subjects in whom no significant changes in glomerular filtration, sodium excretion and segmental sodium reabsorption were observed throughout the day, patients with OH were characterized by a significant increase in glomerular filtration rate during the nighttime (P = 0.03) and significant increases in urinary lithium excretion (P < 0.05) and lithium clearance (P = 0.05) during the night, suggesting a decreased proximal reabsorption of sodium. On a high sodium diet, the symptoms of orthostatic hypotension and the circadian variations in sodium reabsorption were significantly blunted. CONCLUSIONS: These results suggest that, while the patient is in a supine position the effective blood volume of those with OH becomes excessive due to the increased venous return. Hence, the kidney responds with an increase in glomerular filtration and a relative escape of sodium from the proximal tubular segments. These circadian variations in renal sodium handling may contribute to the maintenance of the orthostatic syndrome.

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In recent years, many traffic engineers have advocated converting four-lane undivided urban streets to threelane two-way left-turn facilities. A number of these conversions have been successfully implemented. Accident rates have decreased while corridor and intersection levels of service remained acceptable. This conversion concept is yet another viable alternative “tool” to place in our urban safety/congestion toolbox.

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Audit of the Telecommunications Facilities Revenue Bond Funds of Iowa State University of Science and Technology (Iowa State University) as of and for the year ended June 30, 2007

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Audit report on the Iowa Water Pollution Control Works Financing Program and the Iowa Drinking Water Facilities Financing Program, joint programs of the Iowa Finance Authority and the Iowa Department of Natural Resources for the year ended June 30, 2007

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Audit report on the ADLM Facilities Management Systems Commission for the year ended June 30, 2007

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Report of the Athletic Facilities Revenue Bond Funds of Iowa State University of Science and Technology as of and for the year ended June 30, 2008

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For their nest defense, stingless bees (Meliponini) collect plant resins which they stick on intruders like ants or cleptobiotic robber bees causing their immobilization. The aim of this article is to identify all parts of stingless bee workers contacting these sticky resins. Of special interest are those body parts with anti-adhesive properties to resin, where it can be removed without residues. For that, extensive behavioral observations during foraging flight, handling and application of the resin have been carried out. When handling the resin, all tarsi touch the resin while walking above it. For transportation from plants to the nest during foraging flight, the resin is packed to the corbicula via tarsi and basitarsi of front and middle legs. Once stuck to the resin or after the corbicula had been unloaded, the bee's legs have to be cleaned thoroughly. Only the tips of the mandibles, that form, cut and apply the sticky resin, seem to have at least temporarily resin-rejecting properties.

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We propose a model and solution methods, for locating a fixed number ofmultiple-server, congestible common service centers or congestible publicfacilities. Locations are chosen so to minimize consumers congestion (orqueuing) and travel costs, considering that all the demand must be served.Customers choose the facilities to which they travel in order to receiveservice at minimum travel and congestion cost. As a proxy for thiscriterion, total travel and waiting costs are minimized. The travel costis a general function of the origin and destination of the demand, whilethe congestion cost is a general function of the number of customers inqueue at the facilities.

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Audit report on the Iowa Water Pollution Control Works Financing Program and the Iowa Drinking Water Facilities Financing Program, joint programs of the Iowa Finance Authority and the Iowa Department of Natural Resources for the year ended June 30, 2008

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Audit report on the ADLM Facilities Management Systems Commission for the year ended June 30, 2008