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تعداد نتایج: 18008 فیلتر نتایج به سال:
Independent Factor Analysis (IFA) is used to recover latent components (or sources) from their linear observed mixtures within an unsupervised learning framework. Both the mixing process and the source densities are learned from the observed data. The sources are assumed to be mutually independent and distributed according to a mixture of Gaussians. This paper investigates the possibility of in...
Autoantibodies against soluble liver antigen (SLA) are specific markers for autoimmune hepatitis (AIH) type 1. In contrast to the determination of other AIH-associated autoantibodies by indirect immunofluorescence assay (IFA), detection of anti-SLA relied up to now on ELISA or immunoblot based on bacterially expressed recombinant protein. In order to develop a complementary IFA substrate, SLA i...
A solid-phase radioimmunoassay (RIA) procedure was compared with the indirect fluorescent antibody (IFA) test in a serological study of 76 female adults with urinary tract infections. Relative serum antibody activity was determined against patients' homologous infecting enterobacteria by RIA and IFA and against heterologous enterobacterial common antigen (Escherichia coli O14) by RIA. There was...
AIMS/BACKGROUND Iris fluorescein angiography (IFA) is not commonly used in clinical practice, although its value has been demonstrated especially in cases of diabetic disease. IFA is able to show neovascular tufts in order to guide the laser treatment, and it is highly recommended in diabetic patients who need cataract surgery or vitrectomy. Nevertheless, IFA fails to demonstrate the iris vascu...
BACKGROUND In 2006, bronchiolitis due to adenovirus nosocomial infections resulted in the closure of a pediatric department in northern Portugal. OBJECTIVES To determine the etiology of bronchiolitis in northern Portugal. STUDY DESIGN It was a prospective multicenter study on the etiology of bronchiolitis during the respiratory syncytial virus (RSV) season (November-April). Children < or = ...
The execution of scientific applications needs high-processing computers and requires massive storage. This resulted in deploying a distributed environment with high performance extensive Applications processed cloud platforms face intolerable delays due to data movement across the centres. Optimized distribution datasets among global centres has become an essential issue environment. work prop...
There are few reports concerning interferon induced myocardial dysfunction. A known case of multiple myeloma who was receiving interferon alpha (IFA) for 14 months was brought to the emergency room in frank: pulmonary edema. After treatment of heart failure and discontinuation of interferon alpha, he remained asymptomatic thereafter. Another case of chronic active hepatitis on IFA complain...
The variable 56-kDa major outer membrane protein of Orientia tsutsugamushi is the immunodominant antigen in human scrub typhus infections. We developed a rapid immunochromatographic flow assay (RFA) for the detection of immunoglobulin M (IgM) and IgG antibodies to O. tsutsugamushi. The RFA employs a truncated recombinant 56-kDa protein from the Karp strain as the antigen. The performance of the...
BACKGROUND An enzyme-linked immunosorbent assay (ELISA) and indirect immunofluorescence assay (IFA) were evaluated for serological diagnosis of human strongyloidiasis. METHODS Serum specimens obtained from 46 individuals infected with Strongyloides stercoralis, 37 healthy persons and 381 persons with other parasitic infections were tested using an IgG-ELISA that used crude antigen of S. sterc...
We performed a serological, clinical, and parasitological follow-up of a dog population in an endemic area of American Visceral Leishmaniasis estimated by indirect immunofluorescent assay (IFA) and western blot (WB). After twelve months, the results obtained from IFA demonstrated that 50% were seropositive and two serological profiles were observed: the first one ranging from 1/40 to 1/80 and t...
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