- Award ID(s):
- 1704527
- Publication Date:
- NSF-PAR ID:
- 10244753
- Journal Name:
- Proceedings of the Fourteenth International AAAI Conference on Web and Social Media (ICWSM 2020)
- Sponsoring Org:
- National Science Foundation
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The 2020 US Presidential election was historic in that it featured the first woman of color, Kamala Harris, on a major-party ticket. Although Harris identifies as Black, her racial identity was widely scrutinized throughout the election, due to her mixed-race ancestry. Moreover, media coverage of Harris's racial identity appeared to vary based on that news outlet's political leaning and sometimes had prejudicial undertones. The current research investigated racial categorization of Harris and the role that political orientation and anti-Black prejudice might play in shaping these categorizations. Studies 1 and 2 tested the possibility that conservatives and liberals might mentally represent Harris differently, which we hypothesized would lead the two groups to differ in how they categorized her race. Contrary to our prediction, conservatives, and liberals mentally represented Harris similarly. Also surprising were the explicit racial categorization data. Conservatives labeled Harris as White more than liberals, who tended to categorize Harris as multiracial. This pattern was explained by anti-Black prejudice. Study 3 examined a potential political motivation that might explain this finding. We found that conservatives, more than liberals, judge having a non-White candidate on a Democratic ballot as an asset, which may lead conservatives to deny non-White candidates these identities.
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Enterprise software updates depend on the interaction between user and developer organizations. This interaction becomes especially complex when a single developer organization writes software that services hundreds of different user organizations. Miscommunication during patching and deployment efforts lead to insecure or malfunctioning software installations. While developers oversee the code, the update process starts and ends outside their control. Since developer test suites may fail to capture buggy behavior finding and fixing these bugs starts with user generated bug reports and 3rd party disclosures. The process ends when the fixed code is deployed in production. Any friction between user, and developer results in a delay patching critical bugs. Two common causes for friction are a failure to replicate user specific circumstances that cause buggy behavior and incompatible software releases that break critical functionality. Existing test generation techniques are insufficient. They fail to test candidate patches for post-deployment bugs and to test whether the new release adversely effects customer workloads. With existing test generation and deployment techniques, users can't choose (nor validate) compatible portions of new versions and retain their previous version's functionality. We present two new technologies to alleviate this friction. First, Test Generation for Ad Hoc Circumstances transforms buggy executionsmore »
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Abstract Background Mosquitoes transmit a variety of diseases. Due to widespread insecticide resistance, new effective pesticides are urgently needed. Entomopathogenic fungi are widely utilized to control pest insects in agriculture. We hypothesized that certain fungal metabolites may be effective insecticides against mosquitoes.
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Anopheles gambiae Sua5B cell line, and six showed > 85% inhibition ofAnopheles mosquito cell growth. Further bioassays determined a LC50, the lethal concentration that kills 50% of larval or adult mosquitoes, of 122 µg/mL and 1.7 µg/mosquito, respectively, after 24 h for extract 76F6 fromPenicillium toxicarium .Conclusions We established a high-throughput MTT-based cytotoxicity screening approach for the discovery of new mosquitocides from fungal extracts. We discovered a candidate extract from
P. toxicarium that exhibited high toxicity to mosquito larvae and adults, and thus were able to demonstrate the value of our recently developed approach.more »Graphical abstract