The Ravenscar profile for Ada enforces several restrictions on the usage of general-purpose tasking constructs, thereby facilitating most analysis tasks and in particular functional and timing verification using model checking. This paper presents an experiment in translating the Ravenscar fragment of Ada into the input language of a timed model checker (IF [7, 8]), discusses the difficulties a...

BACKGROUND The model of pleurisy induced by carrageenan exhibits a biphasic response (4 and 48 h) and permits the quantification of exudate, cell migration and certain enzymes such as myeloperoxidase (MPO) and adenosine-deaminase (ADA) that are markers of activated leukocytes. AIMS The present study evaluates whether there exists, in the pleurisy model, a significant inhibition of ADA and MPO...

The extra-enzymic function of cell-surface adenosine deaminase (ADA), an enzyme mainly localized in the cytosol but also found on the cell surface of monocytes, B cells and T cells, has lately been the subject of numerous studies. Cell-surface ADA is able to transduce co-stimulatory signals in T cells via its interaction with CD26, an integral membrane protein that acts as ADA-binding protein. ...

this paper presents the new topology of three phase on line uninterruptible power supply (ups) by employing t-source inverter (tsi) with maximum constant boost pulse width modulation (pwm) control and the results are compared with the conventional uninterruptible power supply (ups). the conventional ups consists of voltage source inverter (vsi) with step up transformer or dc-dc booster which de...

Genetic polymorphism of erythrocyte adenosine deaminase (ADA) was first described by Spencer et al. in 1968 [1]. Its three phenotypes, ADA 1, ADA 2, and ADA 2-1, were found to represent the homozygous or heterozygous expression of two allelic genes at the ADA autosomal locus. Subsequent studies revealed several rare phenotypes representing heterozygosity for either the ADA1 or ADA2 allele and a...

Adenosine deaminase (ADA)-deficient Severe Combined Immunodeficiency (ADA-deficient SCID) is characterized by impaired lymphocyte development and function resulting from the adenosine metabolism defect. Enzyme replacement therapy with polyethylene glycol-conjugated adenosine deaminase (PEG-ADA) minimizes infectious complications of ADA-deficient patients who have not received bone marrow transp...

We read with interest the recent paper by QUEROL JM, BARBE F, MANRESA F, EsTEBAN L and CANETE [1]. The authors presented some patients with tuberculous pleural effusion and adenosine deaminase activity (ADA) values less than 43 U·I-• We reported previously that ADA values (Guisti method) were statistically significantly higher in tuberculous pleural effusions than in most other diseases [2]. Hi...

OBJECTIVES Adenosine deaminase (ADA) can aid in the diagnosis of tuberculous pleural effusions, but false-positive findings from lymphocytic effusions have been reported. We studied the ADA levels in a variety of nontuberculous lymphocytic effusions and analyzed the relationships between ADA and conventional hematologic and biochemical parameters. METHODS One hundred six lymphocytic pleural f...

Genetic variation of the enzyme, adenosine deaminase (ADA), can be detected by starch gel electrophoresis of human red cell lysates and an appropriate staining procedure (Spencer, Hopkinson, and Harris, 1968). Three phenotypes (ADA 1, ADA 2-1, and ADA 2) appear to be determined by two structural alleles, ADA' and ADA2. The frequency of the less common allele, ADA2, was reported to be 0 03 and 0...

Mobile IP is one of the dominating protocols that enable a mobile node to remain reachable while moving around in the Internet. However, it suffers from long handoff latency and route inefficiency. In this article, we present a novel distributed mobility management architecture, ADA (Asymmetric Double-Agents), which introduces double mobility agents to serve one end-to-end communication. One mo...