[0] http://www.huffingtonpost.com/entry/standing-desk-sitting-da...
[1] http://health.usnews.com/health-news/health-wellness/article...
[2] https://www.bostonglobe.com/lifestyle/health-wellness/2014/1...
[3] https://www.washingtonpost.com/national/health-science/stand...
Not based on any of the articles you cited.
[0] is simply a study that compares mortality rates of sitting vs standing behaviors, and is counter to a number of other studies that found the opposite.
[1] and [2] suggest that ONLY standing can be harmful, and that one should combine sitting and standing for the best outcomes.
[3] is similar to [1] and [2] but points out that poor posture while standing - not standing itself - can cause problems.
* First one is only about sitting/standing and mortality.
* Second one is about using standing desks wrong, and has nothing to do with whether using a standing desk correctly can improve your health.
* Third one seems to support getting a standing desk (...?)
* Fourth is a) anecdotal and b) also seems to support getting a standing desk.
burning more cals is better https://www.google.com/webhp#q=how+many+calories+burned+stan...