Presentation slides are optional. A presentation is not a set of slides: It is about someone having something to say to an audience. Creating slides is therefore less important than planning the ...

Costa Rica is another hidden gem for those looking for natural waterslides. The country's biodiversity and tropical climate make it a perfect place for adventure. At places like Rio Celeste, you can ...

Science comes in at 30.0, Cell at 29.2 and Nature at 26.7. The numbers are calculated as the total number of citations in the year 2006 to papers published in the years 2004 and 2005, divided by the ...