Results 21 to 30 of about 700,175 (336)
Ageing and false positive reactions for syphilis. [PDF]
Sexually Transmitted Infections, 1966 D. Tuffanelli
semanticscholar +3 more sources
European Psychiatry, 2022 Introduction Urine Drug Screening (USD) is one of the most used techniques for drug testing. However, one of the main issues related to USD is the high frequency of cross-reactivity with other molecules. Amphetamines, because of their simple structures,
L. Giacovelli +4 more
doaj +1 more source
An ELISA protocol to improve the accuracy and reliability of serological antibody assays
MethodsX, 2017 To assay serum antibodies by indirect ELISA, it is critical to eliminate a variety of false positive and negative reactions attributed to the principle.
Takaki Waritani +3 more
doaj +1 more source
Dissociable effects of valence and arousal in adaptive executive control [PDF]
, 2011 Background: Based on introspectionist, semantic, and psychophysiological experimental frameworks, it has long been assumed that all affective states derive from two independent basic dimensions, valence and arousal.
Kuhbandner Christof +5 more
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Journal of Microbiology, Immunology and Infection, 2021 In an investigation of six anti-SARS-CoV-2 antibody kits with different target antigen and methodology, each kit showed comparable performance. As false-positive reactions occurred independently with different kits, specificity increased to 100% when ...
Jae-Hoon Ko +9 more
doaj +1 more source
Formaldehyde-releasers: relationship to formaldehyde contact allergy. Contact allergy to formaldehyde and inventory of formaldehyde-releasers [PDF]
, 2009 This is one of series of review articles on formaldehyde and formaldehyde-releasers (others: formaldehyde in cosmetics, in clothes and in metalworking fluids and miscellaneous).
Mari-Ann Flyvholm +15 more
core +1 more source
FALSE POSITIVE SCHICK REACTIONS
Journal of the American Medical Association, 1950 To the Editor:— In their article on false positive reactions to the Schick test (J. A. M. A. 142 :390 [Feb. 11] 1950) Cohen, Schneck and Dubow reported that comparison of results of Schick tests with circulating diphtheria antitoxin in 114 young women revealed 51 of 52 specimens of blood from Schicknegative subjects contained more than 0.01 unit of ...
Robert C. Hahn
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BIOLOGICAL FALSE-POSITIVE REACTIONS
Archives of Dermatology, 1966 To the Editor: In their recent article, Kwittken and Goldberg (Arch Derm93:177, 1966) considered their patient's weakly reactive venereal disease research laboratory test for syphilis (VDRL) and complement fixation tests to be biologic false-positive (BFP) reactions.
Cecil Sigal
core +2 more sources
Use of Two Reverse Transcriptases Eliminates False-Positive Results in Differential Display
BioTechniques, 1997 The selection of false-positive clones in differential display PCR (DDRT-PCR) represents a formidable drawback to this otherwise powerful technique of detecting subtle differences between cell types.
Ying-Ju Sung, Robert B. Denman
doaj +1 more source
Evaluation of Three Commercial Interferon-γ Assays in a Bovine Tuberculosis Free Population
Frontiers in Veterinary Science, 2021 The interferon-γ assay has been used worldwide as an ancillary test for the diagnosis of bovine tuberculosis (bTB). This study aimed to describe, based on the bTB-free status in Switzerland, the difference of applying a more stringent cutoff point of 0 ...
Giovanni Ghielmetti +6 more
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