I am new to iOS development too. This link has been a huge help on questions related to this. https://developer.apple.com/library/ios/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/App-RelatedResources/App-RelatedResources.html

You can pull up the same thing in the Xcode documentation by searching "app-related".

How can I make my iPad apps retina in Xcode 5 iOS7
I am currently applying to faculty positions, primarily teaching positions at 4 year colleges and universities. I am told many of these jobs have more than 100-200 applicants. Some of the jobs ads themselves say they get hundreds of applicants, and go on to say something to the effect 'you probably aren't going to hear anything from us', which says to me - 'don't bother us'. I have 3 questions, which overlap:


If I don't hear back from them at all, is it appropriate to contact the department?
If I hear back that they got my application and materials, is it appropriate to contact the department?
People that I know from the business world encourage me to be more aggressive by calling the departments to check in, and even asking if I can come visit the department. I am concerned that this sort of attitude can have a backlash effect. Is this sort of aggressive approach accepted in academia?

