Results 1 to 10 of about 4,525,804 (339)

Substrate specificity of amine oxidase [PDF]

open access: hybrid, 1943
The tyramine oxidase activity of liver extracts found by Hare (1), the aliphatic amine oxidase activity of brain, kidney, and liver extracts observed by Pugh and Quastel (2), and the adrenalin oxidase activity of similar extracts noted by Blaschko ...
Alles, Gordon A., Heegaard, Erik V.
core   +2 more sources

History of Maturation of Prokaryotic Molybdoenzymes—A Personal View

open access: yesMolecules, 2023
In prokaryotes, the role of Mo/W enzymes in physiology and bioenergetics is widely recognized. It is worth noting that the most diverse family of Mo/W enzymes is exclusive to prokaryotes, with the probable existence of several of them from the earliest ...
Axel Magalon
doaj   +1 more source

Validation of the Use of Dried Blood Samples for the Detection of Toxoplasma gondii Antibodies in Stray Cats (Felis s. catus)

open access: yesPathogens, 2021
If validated beforehand, the analysis of dried blood on blotting paper (BP samples) is very useful for monitoring free-ranging animals. We aimed to validate this method for the detection of antibodies against Toxoplasma gondii in stray cats.
Julie Alice Simon   +4 more
doaj   +1 more source

Sensitivity and specificity of chest ultrasound in the diagnosis of pulmonary embolism in the emergency department: A case-control study [PDF]

open access: yesCanadian Journal of Respiratory Therapy, 2023
Objectives: The present study was designed to evaluate the role of chest ultrasound in the diagnosis of acute pulmonary embolism (PE) and determine its accuracy using multi-detector CT-pulmonary angiography (MD-CTPA) as a gold standard technique for PE ...
Hala A. Mohamed   +5 more
doaj   +1 more source

Validation of a Commercial Loop-Mediated Isothermal Amplification (LAMP)-Based Kit for the Detection of Salmonella spp. According to ISO 16140:2016

open access: yesApplied Sciences, 2021
The traditional cultural method (PCR and Real-Time PCR) for Salmonella spp. detection and identification is laborious and time-consuming. A qualitative LAMP method detecting Salmonella spp. was validated in compliance with ISO 16140:2016.
Calogero Di Bella   +15 more
doaj   +1 more source

Comparative Performance of Eight PCR Methods to Detect Cryptosporidium Species

open access: yesPathogens, 2021
Diagnostic approaches based on PCR methods are increasingly used in the field of parasitology, particularly to detect Cryptosporidium. Consequently, many different PCR methods are available, both “in-house” and commercial methods.
Damien Costa   +7 more
doaj   +1 more source

Specificity and Kinetics of Haloalkane Dehalogenase [PDF]

open access: yes, 1996
Haloalkane dehalogenase converts halogenated alkanes to their corresponding alcohols. The active site is buried inside the protein and lined with hydrophobic residues. The reaction proceeds via a covalent substrate-enzyme complex.
Janssen, Dick B.,   +2 more
core   +9 more sources

Diagnostic accuracy of a charge-coupled device and a photostimulable phosphor plate in detection of non-cavitated proximal caries

open access: yesJournal of Oral Research, 2018
Objective: The aim of this study was to compare the diagnostic accuracy of two direct digital radiography systems: the charge-coupled device (CCD) XIOS XG Sirona® and the photostimulable storage phosphor (PSP) VistaScan DürrDental®, in the detection of ...
Ana Paola Trevejo-Bocanegra   +2 more
doaj   +1 more source

Common Medical and Statistical Problems: The Dilemma of the Sample Size Calculation for Sensitivity and Specificity Estimation

open access: yesMathematics, 2020
Sample size calculation in biomedical practice is typically based on the problematic Wald method for a binomial proportion, with potentially dangerous consequences.
M. Rosário Oliveira   +2 more
doaj   +1 more source

Effects of an Initial Muscle Strength Level on Sports Performance Changes in Collegiate Soccer Players

open access: yesSports, 2020
The purposes of this study were to investigate effects of partial block periodized strength training on physical performance and to examine relationships between initial muscle strength measured with isometric mid-thigh pull (IMTP) and performance ...
Ai Ishida   +5 more
doaj   +1 more source

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