Fractional protein synthesis rate (FSR) of duodenal mucosa was measured in two groups of six healthy young men, either in the fed state at the end of a 10-day standardized diet or after a 36-h fast. Protein synthesis rate was measured during a 9-h intravenous infusion of [13C]leucine and [2H5]phenylalanine. The fed group also received an intragastric tracer, [2H3]leucine, mixed with the liquid ...

The effects of an adsorbing phase on the injection of liquid and eventual production of vapor from a lowporosity, vapor dominated geothermal reservoir was studied. The magnitude of delay caused by adsorption, diffusion partitioning, preferential partitioning, and permeability variation were compared. Results were then compared to measured tracer production data at the Geysers to determine the m...

background and objective : a considerable amount of sulfur hexafluoride is applied to evaluate the performance of each laboratory hood according to ashrae–110-95 method. sf 6 is extremely hostile to environment and expensive. in present work, the possibility of conducting this method of hood performance test with less volume of sf 6 was investigated. material and methods : the performance of a ...

background: oxytocin (ot) is a paracrine hormone with various biological activities and many sex organs in both sexes, as well as many tumor cells have shown to have related receptors. in this study the development of a receptor imaging tracer for possible tumor imaging has been described. materials and methods: ot was successively labeled with [67ga]-gallium chloride after conjugation with fre...

In high speed networks, packet processing is relatively expensive while bandwidth is cheap. This begs the question: what elds can be added to packets to make packet processing easier? By exploring this question, we devise a number of novel mechanisms to speed up packet processing. With the advent of new standards for the Data Link, Network , and Transport layers, we believe there is an opportun...

Aflatoxins are a group of fungal toxic metabolites, which are contaminated certain food commodities. ELISA is one of the sensitive methods for detection of aflatoxins. Preparation and stabilizing of a proper conjugated tracer for detection of aflatoxins is probably the main step for designing an ELISA method. In current study, different stabilizers were applied to stabilize a newly prepared con...

A tracer test was conducted at the Dixie Valley, Nevada, geothermal reservoir using fluorescein. Four of 9 production wells showed fluorescein breakthrough during the first 200 days of the test. Reconstructed fluorescein return curves are presented that correct for the thermal decay of the tracer assuming an average reservoir temperature of 227°C. In order to examine the feasibility of using nu...

We synthesized an 1l-IabeIed-histamine-cycIosporin C tracer, to obviate the use of tntiated tracer in radloimmunoassay of cyclosporine. With this tracer, the assay results varied linearly with concentration up to at least 800 Mg/L. The within-assayCV was 6.6% at 39 p.g/L, 4.2% at 100 ig/L, and 7.0% at 300 1i.g/L(n = 15). The between-assayCV was 10.0, 6.4, and 7.8% for the same respectiveconcent...