Results 21 to 30 of about 1,395,900 (346)

False-Negative Results of Real-Time Reverse-Transcriptase Polymerase Chain Reaction for Severe Acute Respiratory Syndrome Coronavirus 2: Role of Deep-Learning-Based CT Diagnosis and Insights from Two Cases

Korean Journal of Radiology, 2020
The epidemic of 2019 novel coronavirus, later named as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is still gradually spreading worldwide.
Dasheng Li, Dawei Wang, Jianping Dong, Nan Wang, He Huang, Haiwang Xu, Chen Xia   +6 more
semanticscholar   +1 more source

Contribution of neutrophil/lymphocyte ratio to the diagnostic efficiency of computed tomography and polymerase chain reaction in COVID-19 patients

SAGE Open Medicine, 2021
Background: 6.5% of the country’s population was diagnosed with COVID-19 disease. Computed tomography scanning and polymerase chain reaction tests are considered reliable methods for the detection of COVID-19.
Serhat Örün, Mustafa Numan Erdem
doaj   +1 more source

Identifikasi Cendawan Endofit Menggunakan Teknik Polymerase Chain Reaction (Detection of Endophytic Fungi Using Polymerase Chain Reaction Technique)

Jurnal Fitopatologi Indonesia, 2013
Yellow leaf curl disease, caused by a member of Begomovirus (Geminiviridae), is one of important diseases of chilli pepper in Indonesia. Exploration of endophytic fungi was initiated in order to find biological control agents for an alternative control ...
Tuti Susanti Legiastuti, Tri Aminingsih
doaj   +1 more source

Detection of Brucella canis in blood, urine and seminal fluid of a naturally infected dog by PCR

Brazilian Journal of Veterinary Medicine, 2018
A brucelose canina é uma doença bacteriana, infectocontagiosa que acomete cães de todo o mundo.O diagnóstico laboratorial é baseado em métodos diretos e indiretos e deve ser realizado quando há evidências de sinais clínicos e epidemiológicos.
Fabiana Sperb Volkweis, Lilian Cristina Cavalcanti, Hélio Blume, Helvécio Leal Santos Júnior, Andrea Lazzari, Fernanda Mulinari   +5 more
doaj   +1 more source

COVID-19 with repeated positive test results for SARS-CoV-2 by PCR and then negative test results twice during intensive care: a case report

Journal of Medical Case Reports, 2020
Background Determining the infectiousness of patients with coronavirus disease 2019 is crucial for patient management. Medical staff usually refer to the results of reverse transcription polymerase chain reaction tests in conjunction with clinical ...
Masafumi Kanamoto, Masaru Tobe, Tomonori Takazawa, Shigeru Saito   +3 more
doaj   +1 more source

Semi-quantitative digital analysis of polymerase chain reactionelectrophoresis gel: Potential applications in low-income veterinary laboratories [PDF]

Veterinary World, 2016
Aim: The interpretation of conventional polymerase chain reaction (PCR) assay results is often limited to either positive or negative (non-detectable). The more robust quantitative PCR (qPCR) method is mostly reserved for quantitation studies and not a ...
John F. Antiabong, Mafora G. Ngoepe, Adakole S. Abechi   +2 more
doaj   +1 more source

Eradication of Helicobacter pylori Infection Using 7-day PCR-based Tailored Therapy [PDF]

The Korean Journal of Helicobacter and Upper Gastrointestinal Research, 2023
Background/Aims Standard triple therapy (STT; proton pump inhibitor [PPI]+clarithromycin+amoxicillin) used for Helicobacter pylori (H. pylori) eradication has shown low treatment success rates in recent years, which is most likely attributable to ...
Youngwoo Kim, Heejun Kang, Sang-Gon Moon, Bohyoung Kim, Hyeyeon Lee, Chul-Hyun Lim, Jung-Hwan Oh   +6 more
doaj   +1 more source

Gene splicing by overlap extension: tailor-made genes using the polymerase chain reaction.

BioTechniques, 2013
Gene Splicing by Overlap Extension or "gene SOEing" is a PCR-based method of recombining DNA sequences without reliance on restriction sites and of directly generating mutated DNA fragments in vitro.
R. Horton, Z. Cai, S. Ho, L. Pease
semanticscholar   +1 more source

Phenotypic and genotypic characterization of locally isolated Salmonella strains used in preparation of Salmonella antigens in Egypt [PDF]

Veterinary World, 2016
Aim: This work was conducted to study the phenotypic and genotypic characterization of locally isolated Salmonella strains (Salmonella Pullorum, Salmonella Enteritidis, and Salmonella Typhimurium) from poultry used in the preparation of Salmonella ...
Hazem Mohammed Ibrahim, Dalia Ahmed Mohammed Abd El-moaty, Hanan Ali Ahmed, Mona Ibrahim El-Enbaawy   +3 more
doaj   +1 more source

Computing by polymerase chain reaction [PDF]

Mathematical Biosciences, 2008
A mathematical notation is introduced to represent, at a symbolic level, different mechanisms of DNA recombination, and a 'PCR lemma' is proven by analytically describing the combinatorial properties of the polymerase chain reaction process. This approach led to the discovery of novel techniques, based on a form of PCR which we called cross pairing PCR
MANCA, Vincenzo, FRANCO, Giuditta
openaire   +3 more sources