Results 31 to 40 of about 165,674 (237)

Illuminating New Frontiers: Exploring the Photosensitizing Potential of Passiflora Species in Combating Methicillin‐Resistant Staphylococcus aureus (MRSA) and Their Infection in Senescent Mice

open access: yesAdvanced Biology, EarlyView.
This study investigates the photosensitizing potential of Passiflora cincinnata in Antimicrobial Photodynamic Therapy (aPDT) against skin infection caused by Methicillin‐resistant Staphylococcus aureus (MRSA) in a senescent murine model. The P. cincinnata exhibits antimicrobial activity, with reduced bacterial load, lower leukocyte infiltration, and ...
Caroline Vieira Gonçalves   +14 more
wiley   +1 more source

Comparative Analysis of Serum Magnesium Ion Levels Using Three Measurement Methods: Spectrophotometry, Atomic Absorption Spectrophotometry, and Inductively Coupled Plasma With Optical Emission Spectrophotometry

open access: yesInternational Journal of Analytical Chemistry
Magnesium is a cation that plays as an important cofactor in various enzymatic reactions. It is the fourth most abundant cation in the body after sodium, potassium, and calcium.
Raja Iqbal Mulya Harahap   +5 more
doaj   +1 more source

Color Differences of Polimerized Resin-Based Composites and Corresponding Shade Guides

open access: yesApplied Sciences
Objective: The purpose of this study is to analyze and compare the colors (A2, A3 and A3.5) of polymerized resin-based composites (RBCs) with respect to the shade numbers within each product line and the VITAPAN Classical® shade guide they purported to ...
David Fernández Millán   +4 more
doaj   +1 more source

Identification and Biochemical Characterization of some Strains of Clavibacter michiganensis subsp. Michiganensis, in Romania

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2020
Clavibacter michiganensis subsp. michiganensis is responsible for the ʻbacterial canker of tomato’. The study aimed to identify and characterize biochemically some strains of the bacteria.
Mariana Simona STANCU, Rodi MITREA
doaj   +1 more source

Solid phase extraction and spectrophotometric determination of palladium with 2-(2-quinolylazo)-5-diethylaminobenzoic acid [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
A sensitive, selective and rapid method for the determination of palladium based on the rapid reaction of palladium(II) with 2-(2-quinolylazo)-5-diethylaminobenzoic acid (QADEAB) and the solid phase extraction of the Pd(II) -QADEAB chelate with a ...
Yang Weizu   +5 more
doaj   +1 more source

NICMOS Spectrophotometry and Models for A-Stars

open access: yes, 2008
Absolute flux distributions for eight stars are well measured from 0.8-2.5mu m with NICMOS grism spectrophotometry at a resolution of R~100 and an accuracy of 1-2%. These SEDs are fit with Castelli & Kurucz model atmospheres; and the results are compared
Bohlin   +23 more
core   +1 more source

Absolute Flux Calibration of the IRAC Instrument on the Spitzer Space Telescope using Hubble Space Telescope Flux Standards [PDF]

open access: yes, 2011
The absolute flux calibration of the James Webb Space Telescope will be based on a set of stars observed by the Hubble and Spitzer Space Telescopes. In order to cross-calibrate the two facilities, several A, G, and white dwarf (WD) stars are observed ...
A. Noriega-Crespo   +52 more
core   +2 more sources

Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture

open access: yesAdvanced Engineering Materials, EarlyView.
Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee   +3 more
wiley   +1 more source

Development of Voltammetry Analysis Method of Iron Metal Ions by Solid-State Membrane with Carbon Nanotube

open access: yesIndonesian Journal of Chemistry
This work developed a selectively modified electrode for measuring the Fe(II) ions in continuous integration using voltammetry techniques. The study assessed various aspects, such as linearity, scan rate, repeatability, and real sample analysis.
Suyanta Suyanta   +7 more
doaj   +1 more source

SYNTHESIS AND INVESTIGATION OF OPTICAL PROPERTIES OF THIN FILMS OF TiO2, OBTAINED WITH THE MEDIA OF DIFFERENT ALCOHOLS

open access: yesВестник Северо-Кавказского федерального университета, 2022
Urgency of the work is due to demandfor new efficient and cheaper materials for electronics, optics and solar energy and the necessity of studying of their properties. The developed technique allows obtaining of thin films of titanium dioxide. The nature
Alexander Kravtsov   +3 more
doaj  

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