Results 221 to 230 of about 12,161 (259)

Ring test for whole-sediment toxicity assay with -a- benthic marine diatom

Science of The Total Environment, 2010
This work presents the results of an interlaboratory proficiency exercise for whole-sediment toxicity assays with the benthic marine diatom Cylindrotheca closterium. An assay protocol was established and followed by all participating laboratories. Cell growth after 72 h exposure was the endpoint used.
Cristiano V M, Araújo, Victoria, Tornero, Luís M, Lubián, Julián, Blasco, Stef A, van Bergeijk, Pedro, Cañavate, Angeles, Cid, Dora, Franco, Raquel, Prado, Ana, Bartual, Manuel Gil, López, Rui, Ribeiro, Matilde, Moreira-Santos, Amparo, Torreblanca, Beatriz, Jurado, Ignacio, Moreno-Garrido   +15 more
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On Nobert’s Test-Plate and the Striæ of Diatoms

Journal of Cell Science
ABSTRACT The limit of the resolvability of lines, or how small a space can exist between lines and still admit of their being separated under the microscope, appears to be an undecided point. Professor Queckett (‘Treatise on the Microscope,’ 3d ed., p.
W. S. Sullivant, T. G. Wormley
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CHARACTERISATION OF THE ADHESION OF FOULING DIATOMS ONTO TEST SURFACES

Diatom Research, 2007
The dominant presence of marine diatoms fouling the latest non-toxic, antifoul coatings has increased interest in characterising diatom adhesives and the mechanisms of their adhesion. In this study the adhesion of two benthic, fouling diatoms [Craspedostauros australis Cox and Haslea sp. Simonsen (Bacillariophyceae, Ochrophyta)] was measured on 23 test
A. Willis, J. Pacifico, T. M. Dugdale, R. Wetherbee   +3 more
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The Diagnostic Value of the Diatom Test for Drowning, II. Validity: Analysis of Diatoms in Bone Marrow and Drowning Medium

Journal of Forensic Sciences, 1997
Abstract In part two of this series, we investigated the characteristics of diatom frustules recovered from bone marrow and samples of putative drowning medium in case of freshwater drownings. A total of 52 cases of freshwater drowning with diatoms in the femoral bone marrow in which a sample of the putative drowning medium was also ...
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A test of methods for assessing water quality based on diatoms

SIL Proceedings, 1922-2010, 1991
Un programme de 3 ans a été proposé à la CEC afin de standardiser les méthodes biologiques basées sur les diatomées et établir un "indice de diatomée" unique qui pourrait être appliqué aux fleuves de la Communauté Européenne. L'objectif du présent article est de présenter les principaux résultats de l'étude sur l'indice diatomée de la CEC.
Coste, Michel, Descy, J.P.
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Objective Diagnosis of Drowning by the "Diatom Test" - A Critical Review.

Forensic science review, 2004
The identification of diatoms in the body tissues to prove a death by drowning (known as the diatom test) dates back to the end of the 19th century. However, in recent decades the reliability of this method was disproved because of an alleged inaccuracy and high false positive rate; nonetheless, the matter is still highly controversial.
BORTOLOTTI, Federica, TAGLIARO, Franco, MANETTO G.   +2 more
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The dissolution of opaline silica of diatom tests in sea water

Journal of the Oceanographical Society of Japan, 1980
Two different series of measurements have been made of the solubilities and rates of solution in sea water of acid-washed siliceous tests of the diatomsThalassiosira decipiens andRhizosolenia hebetata. The kinetic approach was carried out on the assumption that the tests behave as identical solid spheres.
Akiyoshi Kamatani, John P. Riley, Geoffrey Skirrow   +2 more
openaire   +1 more source

Design and Testing of a New Diatom-Based Index for Heavy Metal Pollution

Archives of Environmental Contamination and Toxicology, 2017
The Tinto and Odiel river basins (SW Spain) are known worldwide for their unique water characteristics. Such uniqueness is a consequence of their flow through the Iberian Pyrite Belt (an area rich in metal sulphides) and the mining activities in the basins.
M. R. Fernández, G. Martín, J. Corzo, A. de la Linde, E. García, M. López, M. Sousa   +6 more
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[Evaluation of three methods for forensic diatom test].

Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2015
To compare the efficacy of three methods for forensic diatom test, namely strong acid digestion-centrifuge enrichment-light microscopy (SD-CE-LM), microwave digestion-membrane filtration-automated scanning electron microscopy (MD-ME-SEM), and microwave digestion-membrane filtration-light microscopy (MD-MF-LM).Sixty samples were randomly divided into 3 ...
Yuzhong, Wang, Jian, Zhao, Peng, Li, Sunlin, Hu, Huipin, Wang, Huijun, Wang, Chao, Liu   +6 more
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Limbs found in water: investigation using anthropological analysis and the diatom test

Forensic Science International, 2000
We report the investigation, using a multi-disciplinary approach, of five cases of dismembered limbs which were recovered from Lake Ontario, Lake Erie and the Niagara River, and examined at the Office of the Chief Coroner for Ontario. In all cases, postmortem examination revealed that the limbs had been disarticulated in the postmortem period, by non ...
K L, Gruspier, M S, Pollanen
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