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In collaboration with several international hospitals, he has been translating these advanced MRI techniques for studying patients with spinal cord injury and multiple sclerosis. His lab has created and maintains multiple open-source software packages to process medical image data and control the MRI system remotely more details here.
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These developments include MRI coils, acquisition at ultra-high field (7 Tesla), quantitative techniques (diffusion imaging, magnetization transfer, functional MRI) and image processing software (multimodal registration, segmentation, motion correction). His research focuses on the development of multi-parametric MRI techniques for quantifying microstructure in the brain and spinal cord. Cohen-Adad has a background in MR physics and software development. He is now associate professor at Polytechnique Montreal, director of the Neuroimaging Research Laboratory at Polytechnique (NeuroPoly) and associate director of the Neuroimaging Functional Unit at University of Montreal. Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders in many disciplines who make a difference globally. Cohen-Adad completed his PhD in 2008 at the University of Montreal and pursued a 3-year postdoctoral fellowship at the MGH Martinos Center at Harvard University. "It's just that in China the software is more sophisticated."Ĭopyright ©2022 Dow Jones & Company, Inc. HMS IT provides comprehensive computer hardware and software resources to students, faculty, and staff, providing help purchasing, troubleshooting, repairing, eventually retiring computers, and ensuring that users have access to the software tools they need to accomplish their mission. "We think of it as avoiding spam, but you could use the software for censoring," he said. For example, in places such as the U.S., he says, many websites use also software that requires all comments to go through a moderator before appearing online. King is careful to note that a number of the functions provided by the so-called "censorship" software they tried aren't unique to China. King said this week that the study's findings also reinforce his previous work on Chinese censorship, which found that posts with the potential to stir collective action-for example, those related to protests or Tibetan self-immolations-tend to be most heavily targeted, not the posts that are simply critical of the Chinese government.
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King said such a keyword system remains popular, in part because it works as a buffer and helps give censors time to catch up on the flood of potentially sensitive posts hitting China's social media sites at any given time. For example, he said, a post praising the government's "anti-corruption" policies might be flagged because it contained the word "corruption."ĭespite such flaws, based on conversations with the software provider, Mr. MEDEA: analysis of transcription factor binding motifs in accessible chromatin. Mariani L, Weinand K, Gisselbrecht SS, Bulyk ML. King's group allowed them to flag posts with sensitive keywords for further inspection before permitting them to go live, even many pro-government posts they tested would still get caught in the dragnet. Universal protein-binding microarrays for the comprehensive characterization of the DNA-binding specificities of transcription factors. Specifically, while software provided to Mr. Still, he said, his research also illuminated the limitations of such technology. King's findings closely mirror those of another study this year, which found that Sina's censors are able to scrub sensitive content within just minutes of most postings. "They have top-down control of outcomes, but not of the particular process. King said his exposure to the broad range of censorship software on the market suggests that China's government is "allowing competition and innovation in censorship technology." If that same formula was used at Sina Weibo, China's most popular microblogging platform, the company would employ somewhere between 2,160 and 3,240 censors to cover its 54 million daily active users. King's experience, the company recommended that his team hire two to three full-time censors for every 50,000 users.
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The team's research also helps shed light on a persistent question in China-namely, just how many censors are employed in the country.