The dynamic window approach is a well known navigation scheme developed in Fox et al. (1997) and extended in Brock and Khatib (1999). It is safe by construction and has been shown to perform very efficiently in experimental setups. However, one can construct examples where the proposed scheme fails to attain the goal configuration. What has been lacking is a theoretical treatment of the algorit...

Kowalski and Sergot’s Event Calculus (EC ) is a simAppeared in the Proceedings of the Fifth International Workshop on Temporal Representation and Reasoning — TIME’98 (R. Morris, L. Khatib editors), pp. 81–88, IEEE Computer Society Press, Sanibel Island, FL, 16–17 May 1998. ple temporal formalism that, given a set of event occurrences, derives the maximal validity intervals (MVIs) over which pro...

starting from the 6th century a.h., and especially starting from the mongol era onward, along with the flourishing of historiography, historical shāhnāmeh-composition also became a point of interest, and shāhnāmehs appeared with the aim of recording historical events. in the composition of these shāhnāmehs, ferdowsi’s shāhnāmeh was like a model for the shāhnāmeh-writers, and due to this the spi...

Pemanfaatan teknologi telpon genggam dalam dunia da’wah seharusnya bukan hanya sebatas pada penggunaaan konunikasi personal, akan tetapi lebih lanjut harus dimanfaatkan untuk pengembangan pelayanan informsi yang luas, oleh karena itu perlu drancang sistem informasi mubaligh. Metode penelitian rangka merancang mubaligh ini adalah menggunakan metode action research, yaitu mengembangkan ada dengan...

Cytokine-dependent induction of E-selectin expression is mediated through cooperative signaling involving the Ras/Raf/mitogen-activated protein kinase pathway. We previously reported that metastatic tumor cells entering the hepaticcirculation rapidly induce a cytokine cascade leading to E-selectin induction (A-M. Khatib, et al., Cancer Res., 59:1356-1361, 1999).Here, we investigated the effect ...

Anne M. Gillis, MD, FHRS, Andrea M. Russo, MD, FHRS, FACC, Kenneth A. Ellenbogen, MD, FHRS, FACC, Charles D. Swerdlow, MD, FHRS, CCDS, FACC, Brian Olshansky, MD, FHRS, CCDS, FACC, Sana M. Al-Khatib, MD, MHS, FHRS, CCDS, FACC, John F. Beshai, MD, FHRS, FACC, Janet M. McComb, MD, FHRS, Jens Cosedis Nielsen, MD, Jonathan M. Philpott, MD, Win-Kuang Shen, MD, FHRS, FACC From University of Calgary, L...

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Objetivo. Analizar la integración de utilización Telegram en el aprendizaje cooperativo como estrategia enseñanza investigación científica estudiantes medicina. Métodos. Investigación correlacional, prospectiva. La población estudio estuvo conformada por del curso metodología durante 2021; se utilizó una muestra no probabilística 68 estudiantes. Se emplearon dos instrumentos: Uso basado criteri...

in cultural semiotics as posed by tartu-moscow circle the concepts of cultural sphere, border, and the (non)cultural other and the dialogue between this cultural self and that other on the borders are very critical. the mechanism of intercultural translation and the processes of inclusion and exclusion govern this intercultural dialogue. such communication between cultures, in order to be reali...

In many civil and military applications, Unmanned Aerial Vehicles (UAVs) have to visit a partially-ordered set of strategic sites, often in presence of obstacles and wind. In this paper, we present a trajectory planning algorithm specially designed for this kind of mission, and possibly runnable during flight. The main idea of our approach is to proceed in three steps: paths building, sites ord...