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Effects of Potentised Substances on Growth Kinetics of Saccharomyces cerevisiae and Schizosaccharomyces pombe Organic Eprints
Scherr, Claudia; Baumgartner, Stephan; Spranger, Jörg; Simon, Meinhard.
Background: Homeopathic potencies are used as specific remedies in complementary medicine. Since the mode of action is unknown, the presumed specificity is discussed controversially. Objective: This study investigated the effects of potentised substances on two yeast species, Saccharomyces cerevisiae and Schizosaccharomyces pombe, in a stable and reliable test system with systematic negative controls. Materials and Methods: Yeast cells were cultivated in either potentised substances or water controls in microplates and their growth kinetics were measured photometrically. Water control runs were performed repeatedly to investigate the stability of the experimental set-up (systematic negative controls). Results: 4 out of 14 screened substances seem to have...
Tipo: Journal paper Palavras-chave: Systems research and participatory research.
Ano: 2006 URL: http://orgprints.org/10755/1/Scherr%2Detal%2D2006%2Dforsch.komplementaermed.pdf
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Homeopathic Preparations to Control the Rosy Apple Aphid (Dysaphis plantaginea Pass.) Organic Eprints
Wyss, Eric; Tamm, Lucius; Siebenwirth, Joachim; Baumgartner, Stephan.
A laboratory model system with the rosy apple aphid (Dysaphis plantaginea Pass.) on apple seedlings was developed to study the effects of homeopathic preparations on this apple pest. The assessment included the substance Lycopodium clavatum and a nosode of the rosy apple aphid. Each preparation was applied on the substrate surface as aqueous solution of granules (6c, 15c, or 30c). Controls were aqueous solutions of placebo granules or pure water. In eight independent, randomized, and blinded experiments under standardized conditions in growth chambers, the development of aphids on treated and untreated apple seedlings was observed over 17 days, each. Six experiments were determined to assess the effects of a strict therapeutic treatment; two experiments...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2010 URL: http://orgprints.org/16969/1/wyss%2Detal%2D2010_HomeopathyAphid_TSW.pdf
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