The phrase "at other systems" is correct and usable in written English.
It can be used when referring to different systems in a comparative or contrasting context.
Example: "The software performs well on our main system, but we need to test its compatibility at other systems."
Alternatives: "in different systems" or "across various systems".
But we have to look at other systems that can really create a safety net for these children".
The IPPR looked at other systems, such as those in Australia and Canada, and concluded that British ministers were under-supported.
"We're looking at other systems," Stern said, listing the N.F.L.'s franchise-tag system — which effectively binds superstars to their teams — as one option.
It remains for future research to determine whether phreatic eruption catalogues at other systems - with and without crater lakes - show similar statistics and to determine the physical reason behind the similarities.
We could benefit from looking at other systems and cultures.
In Massachusetts, Philip Mangano, an advocate recently named as the point person on homelessness for the Bush administration, has been remarkably successful at pressuring other systems, including foster care and corrections, to take more responsibility for those they discharge, rather than just sending them to the streets or shelters.
A specific chapter is dedicated to the cardiovascular system and another to the lungs, while a third chapter looks at the other systems - mainly the brain, the stomach, the liver, the kidneys and the blood.
It has tested at least three other systems and has yet to sign a companywide agreement with any of them.
At least in other systems, unconfined histones are rapidly eliminated via proteolysis (Singh et al., 2009a, 2009b), a protective mechanism against the detrimental effects of free histones.
Even at the most basic level there are other systems at play beyond this one repeatable interaction equipment, experience points, skills, story, and so on.
