Results 261 to 270 of about 45,371 (305)

On testing difference equations for the diatomic eigenvalue problem

Journal of Computational Chemistry, 1988
AbstractThe determination of the vibration‐rotation eigenvalues (for an electronic state of a diatomic molecule) is done using various algorithms, where the differential equation y″ + f(r)y = 0 (with given initial values yo and y′o at an origin ro) is to be integrated, that is, to be replaced by a “convenient” difference equation (DE).
Hafez Kobeissi, Majida Kobeissi, Ali El Hajj   +2 more
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A test on different aspects of diatom processing techniques

Journal of Applied Phycology, 2007
A factorial experiment was carried out in order to assess the effects of four treatment steps in diatom processing techniques (the quantity of hydrogen peroxide added to the sample, the time allowed to the digestion reaction, the use of centrifugation and the method used to settle the frustules onto the coverslip) on different aspects of the quality of
Saúl Blanco, Irene Álvarez, Cristina Cejudo   +2 more
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The Diatom Test for Drowning in Ontario

Canadian Society of Forensic Science Journal, 1996
The diatom test for drowning has proved to be a useful, reliable, and valid test for the postmortem diagnosis of drowning in hundreds of cases of drowning in Ontario, Canada. In Ontario, the test has been largely applied to the femoral bone marrow which has facilitated the referral of cases from sites outside of the Office of the Chief Coroner for ...
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An Evaluation of the Diatom Test in Deaths of Professional Divers

Medicine, Science and the Law, 1984
The use of the Diatom Test for drowning is controversial. In order to make a more realistic approach in the clinical field it was routinely used and evaluated in a study of the deaths of seventy professional divers where history and mode of death were accurately monitored.
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Types of diatoms in China’s three major rivers and the possible application for an automatic forensic diatom test

Australian Journal of Forensic Sciences, 2014
The diatom test is the most reliable approach that provides scientific support for diagnosis of drowning. However, there are limitations, which, made forensic scientists stop using the test, such as the fact that it is time-consuming and lack of domain knowledge of the diatom identification.
Jian Zhao, Yuzhong Wang, Yanji Zhang, Sunlin Hu, Chao Liu   +4 more
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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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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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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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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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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
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