This struggle is best summarised as an inverse problem, in which one begins with a set of observations (e.g., EEG signals) and has to work backwards to try to calculate what caused them (e.g., neural activity in a specific brain region).
Application Loader is a tool provided by Apple which allows you to upload new binaries and deliver new in-app purchases to iTunes Connect. You can download and install Application loader from iTunes Connect. Installing Application Loader . Log in to iTunes Connect. Click on Resources and Help. Scroll to App Preparation and Delivery. Click the Download Application Loader link to download the self-extracting installation package (ApplicationLoader_X.X.dmg).
ClamXav is a free virus checker for Mac OS X. It uses the very popular ClamAV open source antivirus engine to scan mail and attachments. As a testament to its effectiveness, Apple now bundles ClamAV with Mac OS X Server 10.4.