Results 31 to 40 of about 1,987,921 (339)

Efficiency of polymerase chain reaction processes: A stochastic model [PDF]

open access: yes, 2006
A stochastic model for the efficiency of polymerase chain reaction (PCR) processes is presented. The model is based on the assumption that the i’th nucleotide incorporation on the DNA template takes τi seconds, where τi has an exponential distribution ...
Hassibi, Arjang, Sharif, Masoud
core   +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

open access: yesJournal 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   +3 more
doaj   +1 more source

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

open access: yesThe 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   +6 more
doaj   +1 more source

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

open access: yesVeterinary 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   +3 more
doaj   +1 more source

Validation of a Polymerase Chain Reaction technique for Kidd blood group genotyping [PDF]

open access: yes, 2015
The Kidd blood group antigens, Jkª and Jkᵇ , are two of the main surface markers which are found on the membrane of red blood cells. The determination of whether a donor or a recipient has the Jkª and/or the Jkᵇ antigens is crucially important to ...
Borg, Joseph J.   +2 more
core   +1 more source

Virus-transformed pre-B cells show ordered activation but not inactivation of immunoglobulin gene rearrangement and transcription [PDF]

open access: yes, 1991
Virus-transformed pre-B cells undergo ordered immunoglobulin (Ig) gene rearrangements during culture. We devised a series of highly sensitive polymerase chain reaction assays for Ig gene rearrangement and unrearranged Ig gene segment transcription to ...
Baltimore, David   +2 more
core   +5 more sources

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

open access: yesBioTechniques, 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

Rickettsia prowazekii and Real-time Polymerase Chain Reaction

open access: yesEmerging Infectious Diseases, 2006
Rickettsia prowazekii is the causative agent of epidemic typhus and a potential bioterrorism agent. Sensitive and specific rapid assays are needed to complement existing methods of detecting this organism. We developed a real-time quantitative polymerase
Sanela Svraka   +4 more
doaj   +1 more source

Comparison of PCR fingerprinting techniques for the discrimination of Salmonella enterica subsp. enterica serovar Weltevreden isolated from indigenous vegetables in Malaysia. [PDF]

open access: yes, 2008
Salmonella enterica subsp. enterica (S.) serovar Weltevreden has emerged as a public health problem in many countries. Genomic DNA of S. Weltevreden from indigenous vegetables namely 'selom' (Oenanthe stolonifera), 'pegaga' (Centella asiatica), 'kesum ...
Awang Saleh, Noorzaleha   +5 more
core   +1 more source

Laboratory Detection of Novel Corona Virus 2019 Using Polymerase Chain Reaction [PDF]

open access: yes, 2020
Since mid-December 2019, several cases of a pneumonia like disease (with symptoms including fever, difficulty in breathing, cough and invasive lesions on both lungs) of unknown cause have emerged in the central Chinese city of Wuhan.
Chudhary, S. A. (Shafiq)   +2 more
core  

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