Results 31 to 40 of about 153,465 (260)

Research of the Real Time PCR method for detection and identification phytoplasmas on grapevine

open access: yesRUDN Journal of Agronomy and Animal Industries, 2015
For the detection and identification of Candidatus Phytoplasma vitis Flavescence doree - the yellowing grape quarantine pest for the territory of Russia and Candidatus Phytoplasma solani Bois noir - pathogen of blackening crust grape was used one of the ...
G N Matyashova, V G Zaets
doaj   +1 more source

Avaliação do teste do anel em leite na vigilância epidemiológica da brucelose bovina em rebanhos e em laticínios Evaluation of the ring test in an epidemiological surveillance of bovine brucellosis in herds and dairies

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
Analisaram-se 464 amostras individuais de leite e 54 amostras de leite de latões, oriundos de leite dos mesmos animais, por meio do teste do anel do leite (TAL) visando à sua aplicação no diagnóstico individual e de rebanhos da brucelose bovina.
F.F. Silva Júnior   +3 more
doaj   +1 more source

False negative results from using common PCR reagents

open access: yesBMC Research Notes, 2011
Background The sensitivity of the PCR reaction makes it ideal for use when identifying potentially novel viral infections in human disease. Unfortunately, this same sensitivity also leaves this popular technique open to potential contamination with ...
Atwood Allison A   +4 more
doaj   +1 more source

False negative result of polymerase chain reaction in very early stages of acute retinal necrosis

open access: yesJournal of Ophthalmic Inflammation and Infection, 2023
Abstract Background Viral nucleic acid testing of intraocular fluid using polymerase chain reaction (PCR) is a major laboratory examination in the diagnosis of acute retinal necrosis (ARN). Importantly, false negative PCR results may occur in several special situations.
Haibo Wang   +8 more
openaire   +3 more sources

Zinc Cream and Reliability of Tuberculosis Skin Testing

open access: yesEmerging Infectious Diseases, 2007
In 50 healthy Peruvian shantytown residents, zinc cream applied to tuberculosis skin-test sitescaused a 32% increase in induration compared with placebo cream.
V. Bhargavi Rao   +9 more
doaj   +1 more source

How do (false) positively screened patients experience a screening programme for liver cirrhosis or fibrosis in Germany? A qualitative study

open access: yesHealth Expectations, 2023
Objective This study aimed to explore psychosocial consequences of (false) positive liver screening results and to identify influencing factors for perceived strain within a multistage screening programme for liver cirrhosis and fibrosis in Germany ...
Urs A. Fichtner   +9 more
doaj   +1 more source

Debates on the Use of Deception in Psychology Research

open access: yesPsikoloji Çalışmaları, 2023
Deception is often used in scientific research as it is thought to contribute to the research process. Deception basically occurs when participants are given false or incomplete information about the purpose, content, or processes of a study.
Ayşe Tuna
doaj   +1 more source

Application of fluorescein combined with methylene blue in sentinel lymph node biopsy of breast cancer

open access: yesScientific Reports, 2021
Sentinel lymph node biopsy (SLNB) for axillary lymph node staging in early breast cancer has been widely recognized. The combination of radio-colloids and dye method is the best method recognized. The reagents and equipment required in the process of the
Liang Li   +7 more
doaj   +1 more source

Diagnostics of cutaneous adverse drug reactions: evaluation of patch tests, lymphocyte transformation tests, and drug provocation tests

open access: yesJournal of Cutaneous Immunology and Allergy
BackgroundPatch tests (PT) and/or lymphocyte transformation tests (LTT) are typically performed, when diagnosed with cutaneous adverse drug reactions (CADR). However, their positivity rates can vary depending on the rash type.
Tomomu Ishikawa   +5 more
doaj   +1 more source

THE PUZZLE OF THE FALSE POSITVE REACTIONS IN CR. NEOFORMANSE’S CAPSULAR ANTIGEN SLIDE LATES AGGLUTINATION TEST BY SERA OF PATIENTS WITH RHEUMATOID ARTHRITIS [PDF]

open access: yesIranian Journal of Public Health, 1987
Different examination have shown that rheumatoid factor is not responsible for false positive reaction (F.P.R.) in Cr. Neoformanse’s free capsular antigen latex agglutination test, whereas high levels of iron in sera of patients with rheumatoid arthritis
F. Zaini   +1 more
doaj   +1 more source

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