Results 31 to 40 of about 9,550 (296)

Utilization of Tryptophan-like Fluorescence as a Proxy for E. coli Contamination in a Mixed-Land-Use Karst Basin

Hydrology, 2023
Karst aquifers are susceptible to contamination by pathogenic microorganisms, such as those found in human and animal waste, because the surface and subsurface drainage are well integrated through dissolution features.
Ryan T. Dapkus, Alan E. Fryar, Benjamin W. Tobin, Diana M. Byrne, Shishir K. Sarker, Leonie Bettel, James F. Fox   +6 more
doaj   +1 more source

In situ Measurements of Phytoplankton Fluorescence Using Low Cost Electronics

Sensors, 2013
Chlorophyll a fluorometry has long been used as a method to study phytoplankton in the ocean. In situ fluorometry is used frequently in oceanography to provide depth-resolved estimates of phytoplankton biomass.
Dana L. Wright, Thomas Leeuw, Emmanuel S. Boss   +2 more
doaj   +1 more source

Quantification of DNA Extracted from Formalin Fixed Paraffin-Embeded Tissue Comparison of Three Techniques: Effect on PCR Efficiency [PDF]

Journal of Clinical and Diagnostic Research, 2016
Introduction: Mutation detection from Formalin Fixed ParaffinEmbedding (FFPE) tissue in molecular lab became a necessary tool for defining potential targeted drug.
Dushyant Kumar, Manoj Kumar Panigrahi, Moushumi Suryavanshi, Anurag Mehta, Kandarpa Kumar Saikia   +4 more
doaj   +1 more source

Eficiência fotossintética e consumo de água de Ipomoea triloba após aplicação de herbicidas Photosynthetic efficiency and water consumption of Ipomoea triloba after herbicide application

Planta Daninha, 2012
Este trabalho foi desenvolvido com o objetivo de avaliar a fluorescência através da taxa de transporte de elétrons, consumo de água e intoxicação de plantas de Ipomoea triloba após aplicação de quatro herbicidas de diferentes mecanismos de ação.
R. Araldi, M. Girotto, E.D. Velini, G.L.G.C. Gomes, S.P. Jasper, C.A. Carbonari, M.L.B. Trindade   +6 more
doaj   +1 more source

Análises de fluorescência e consumo de água em Brachiaria decumbens após aplicação de herbicidas em pós-emergência Analysis of fluorescence and water consumption in Brachiaria decumbens after herbicide application in post-emergence

Planta Daninha, 2011
A análise da fluorescência da clorofila vem sendo largamente utilizada no entendimento dos mecanismos da fotossíntese propriamente dito, bem como na avaliação da capacidade fotossintética alterada com a aplicação de herbicidas.
R Araldi, M Girotto, E.D Velini, L Tropaldi, I.P.F Silva, C.A Carbonari   +5 more
doaj   +1 more source

Rapid Bacterial Detection and Identification of Bacterial Strains Using Machine Learning Methods Integrated With a Portable Multichannel Fluorometer

IEEE Access, 2023
Rapid and sensitive bioburden detection is of paramount importance in different applications including public health, and food and water safety. To overcome the traditional limitations of bacterial detection i.e., lengthy culture time, and complicated ...
Md Sadique Hasan, Chad Sundberg, Hasibul Hasan, Yordan Kostov, Xudong Ge, Fow-Sen Choa, Govind Rao   +6 more
doaj   +1 more source

Avaliação da intoxicação de cultivares de cana-de-açúcar e I. grandifolia ao amicarbazone Evaluation of intoxication of sugarcane cultivars and I. grandifolia by amicarbazone

Planta Daninha, 2011
O objetivo deste trabalho foi avaliar a intoxicação de planta daninha e cultivares de cana-de-açúcar ao amicarbazone. Para isso, utilizou-se Ipomoea grandifolia como planta daninha representante e os cultivares de cana-de-açúcar PO8862, SP80 3280 e RB83 ...
R Araldi, E.D Velini, M Girotto, C.A Carbonari, G.L.G.C Gomes, M.L.B Trindade   +5 more
doaj   +1 more source

Assessment of field fluorometers

Water Science and Technology, 2014
Two field fluorometers, devoted either to natural organic matter (NOM) or to tryptophan-like fluorescing substances, were tested for the characterization of a large set of water samples (n = 263) impacted to various degrees by untreated or poorly treated urban sewage. Both fluorometers yielded consistent results when testing discrete samples.
Zhang, Yuhai, Assaad, Aziz, France, X., Adouani, Nouceiba, Pons, Marie-Noëlle, Gutierrez, Alexandra   +5 more
openaire   +3 more sources

Features and applications of a field imaging chlorophyll fluorometer to measure stress in agricultural plants

Precision Agriculture, 2020
Most non-destructive methods for plant stress detection do not measure the primary stress response but reactions of processes downstream of primary events.
A. Linn, Alexander K. Zeller, Erhard E. Pfündel, R. Gerhards   +3 more
semanticscholar   +1 more source

A novel, low-cost microfluidic device with an integrated filter for rapid, ultrasensitive, and high-throughput bioburden detection

Scientific Reports, 2023
Rapid and accurate bioburden detection has become increasingly necessary for food, health, pharmaceutical and environmental applications. To detect bioburden accurately, and in a highly sensitive manner, we have fabricated a novel microfluidic device ...
Md. Sadique Hasan, Chad Sundberg, Michael Tolosa, Abhay Andar, Xudong Ge, Yordan Kostov, Govind Rao   +6 more
doaj   +1 more source