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In JoVE (1)
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Articles by Heinrich H. Bülthoff in JoVE
JoVE Neuroscience
MPI CyberMotion Simulator: Implementatie van een nieuwe Motion Simulator uw zintuigen Pad Integratie Onderzoek in drie dimensies
1Department of Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, 2Laboratoire de Physiologie de la Perception et de l'Action, Collège de France - CNRS, 3Department of Brain and Cognitive Engineering, Korea University
Een efficiënte manier om inzicht te krijgen in hoe de mens navigeert zich in drie dimensies wordt beschreven. De methode maakt gebruik van een motie simulator die in staat van bewegende waarnemers op een manier onbereikbaar door traditionele simulatoren. De resultaten bevestigen dat beweging in het horizontale vlak wordt onderschat, terwijl de verticale beweging wordt overschat.
Other articles by Heinrich H. Bülthoff on PubMed
[Retroperitoneal Sarcomas: a Single Center Experience]
To analyse the management and clinical outcome of patients treated for retroperitonal soft tissue sarcoma and to identify prognosis factors.
Application of UV-spectrophotometric Methods for Estimation of Tenofovir Disoproxil Fumarate in Tablets
Two new, simple and cost effective UV-spectrophotometric and first order derivative methods were developed for estimation of tenofovir disoproxil fumarate in bulk and tablets. Tenofovir disoproxil fumarate was estimated at 260 nm in 0.1N HCl. In first order derivative, it showed amplitude at 273 nm. In both the methods linearity was found to be in the range of 5-40 micro/ ml; for UV-spectrophotometric method (Y=0.02586 x +0.0083; r(2)=0.9999) and for first order derivative spectrophotometric method (Y=0.00132 x +0.00035; r(2)=0.9995), respectively. These methods were tested and validated for various parameters according to USP guidelines. The quantitation limits were found to be 1.546 and 1.986 micro/ ml, for both the methods. The proposed methods were successfully applied for the determination of tenofovir disoproxil fumarate in pharmaceutical formulations. The results demonstrated that the procedure is accurate, precise and reproducible (relative standard deviation <2%), while being simple, cheap and less time consuming and can be suitably applied for the estimation of tenofovir disoproxil fumarate in different dosage forms.
