Những biến số nào được kiểm soát và đo lường?

May 9, 2023 ... To try to keep these invasive carp out of the Great Lakes, scientists, activists and inventors have come up with several innovative methods. Sep 29, 2016 ... “But [it's] probably moving around in other ways, as well. There's an example in the Caribbean where frogs were in bananas that were shipped ... Mar 1, 2023 ... A better approach would be to train T cells to recognize cancer via processes that more closely mimic the way ... out first," Majeti said. "That's ... Oct 11, 2021 ... Researchers and scientists can help build upon the climate-friendly behaviors people have tried out during this pandemic. Many people have ... Jun 1, 2008 ... ... out new opportunities to feel stupid. I wouldn't know what to do without that feeling. I even think it's supposed to be this way. Let me ... Jan 9, 2019 ... ... scientists to approach diseases in new ways. The swiftness of this ... We advocated so strongly for professional standards in an attempt to ward ... For example, a chemist might try to produce an antimalarial drug synthetically and, in the process, discover new methods of forming bonds that can be applied to ... Jun 29, 2015 ... And yet not all picky eaters are picky in exactly the same way, notes Sharon M. Donovan, a nutrition professor at the University of Illinois at ... Apr 14, 2025 ... In the meantime, scientists are testing out ways to adapt the river to its new, drier reality. “We're not getting the water regime back that we ... A hypothesis is a conjecture based on knowledge obtained while seeking answers to the question. Hypotheses can be very specific or broad but must be falsifiable ...