This paper explores the flexile flow lines where setup times are sequence- dependent. The optimization criterion is the minimization of total weighted completion time. We propose an iterated greedy algorithm (IGA) to tackle the problem. An experimental evaluation is conducted to evaluate the proposed algorithm and, then, the obtained results of IGA are compared against those of some other exist...

Abstract Despite ongoing efforts to characterize the host response toward SARS-CoV-2, a major gap in our knowledge still exists regarding magnitude and duration of humoral response. Analysis antibody mild versus moderate/severe patients, using new developed quantitative electrochemiluminescent assay for detecting IgM/IgA/IgG antibodies SARS-CoV-2 antigens, revealed rapid onset IgG/IgA antibodie...

Siegler, D. I. M. and Citron, K. M. (1974). Thorax, 29, 313-316. Serum and parotid salivary IgA in chronic bronchitis and asthma. It has been suggested that immunoglobulin A (IgA) deficiency may be an important predisposing factor to infection in chronic bronchitis and that this occurs more often in extrinsic asthmatics than in normal subjects. These claims have been investigated by measurement...

Immunoglobulin A (IgA) was demonstrated in equine serum and secretions. This immunoglobulin had a molecular weight extending from 150,000 to 700,000 and reacted with specific antihuman alpha-chain antiserum. Antigenic determinants specific for secretory IgA were demonstrated and found to be absent on serum IgA. Antigen binding activity was detected in IgA from tears. Purified IgA was antigenica...

To investigate the involvement of bacterial antigens in Immunoglobulin A (IgA) nephropathy, we measured IgA, IgG and IgM antibodies to gram-negative Escherichia coli (E.coli) and Haemophilus influenzae (H.influenzae) by ELISA in 24 patients (11 males and 13 females) with IgA nephropathy and 22 normal controls (11 males and 11 females). The titers of IgA and IgM antibodies for E.coli and H.influ...

Immunoglobulin A (IgA) provides protection against pathogens at mucosal surfaces. Chemotactic responses have been hypothesized to target IgA plasma cells involved in mucosal immune responses. We show here that thymus-expressed chemokine (TECK, CCL25) is a potent and selective chemoattractant for IgA antibody-secreting cells (ASC), efficiently recruiting IgA-producing cells from spleen, Peyer's ...

INTRODUCTION ..................................................................... 296 DIRECT EFFECTOR FUNCTIONS OF S-IgA ..................................................................... 297 Inhibition of Microbial Adherence and Colonization ..................................................................297 Toxin and Enzyme Neutralization ...................................................