Background: The most common type of primary brain tumors are gliomas. For patients unsuitable for open microsurgery having been treated by radiochemotherapy, laser irradiation has proven to be an alternative palliative option. From summer 1997 until winter 2006 we performed about 60 laser-interstitial thermotherapy (LITT) treatments, starting with patients with large recurrent tumors who had no...

The deciphering of the late-glacial and Holocene vegetation, glacial-geological, and climatic history of Cajas National Park in southwestern Ecuador is undertaken focusing on close-interval sampling of sediment cores from two high elevations lakes, Lagunas Chorreras (3700 m) and Pallcacocha (4060 m). This study involves extensive dating (both accelerator mass spectrometry and tephra), palynolog...

A dense Synechococcus population has been observed in oceanic offshore waters (400 km from the Mauritanian coast) within the upper 30-m-thick layer. With cell counts >3 X 10” cells ml I, about half (0.6) of the total Chl a concentration (1.25 mg m-l) was attributable to the cyanobacteria. The OF tical properties of this water body markedly differed from those of case 1 waters with the same Chl ...

The interaction between large and small scale motions from the point of pressure fluctuation is studied. Using the small pressure probe, both the static pressure and wall pressure fluctuations were measured inside the zeropressure gradient boundary layer at relatively high Reynolds numbers. How the large scales in outside affect the small scales near wall is analyzed by means of statistical met...

Digital Earth is being promoted as a framework into which "we can embed vast quantities of information about the planet" (U.S. Vice President Gore). It provides an organizational metaphor for information about the Earth by allowing users to search over a virtual rendering of the planet; a call for a framework that can accommodate all kinds of information, including data, computational models of...

This paper proposes a systematic approach that will help managers evaluate the suitabilitv of alternative telecommuting configurations. In particular, the main task of this paper is to develop a conceptual framework and a decision support system (DSS) for telecommuting managers to assess the tradeogs involved in introducing telecommuting in their organisations. The proposed DSS is in the form o...