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Measuring these phenomena can provide direct insight into the underlying cell physiology by monitoring the net activity of specific transporters , such as pumps , porters , and channels , or the diffusion gradients of soluble molecules . The technique , published in the Oct. 15 advanced online edition of the journal Nature Biotechnology , overcomes the need for viral vectors that have plagued gene therapy trials , while retaining the ability to insert therapeutic DNA into specific sites on the chromosome . During the next year GLAAD would like to gain further insight into issues relating to LGBT representations and homophobia in Spanish language media ( radio programs , television programs , print ) . We can gain further insight into the factors associated with teacher mobility by examining the pre - and post-move school characteristics for teachers moving to a new school within the same district . Recent years have seen astonishing advances not only in computers which can transform human speech into text , and text into passable speech , but in machine translation of language - free on the internet , no less . Over time , metal corrodes and wood decays , with the result that comparatively few pieces of military dress and equipment have survived to provide direct insight into the way that war was waged in the Middle Ages .