25. MN135; 26. NJ101; 27. P2(HPH1); 28. T2(T2TGT); 29. T3(TGT); 30. 1457; 31. NJ9709; 32. Concentrated sterile culture medium.doi: 10.1371/journal.pone.0073376.gwithin livestock populations and between livestock and humans.AcknowledgementsThe authors would like to thank Scott Stibitz at the Center for Biologics Evaluation and Research, Food and Drug Administration; and Vesnarinone chemical information Jeffery Kaplan at the Department of Oral Biology, New Jersey Dental School for generous gift of the strains used in this study. Mention of trade names or commercial products in this article is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. USDA is an equal opportunity provider and employer.Supporting InformationFigure S1. Biofilm formation on plasma coated microtiter plates. Strains tested are shown along the x-axis and grouped based on methicillin-sensitivity and isolation source. The indicated strains were grown statically for 24 hours in tryptic soy broth medium supplemented with 0.5 glucose and 3 NaCl on microtiter plates pre-coated with either 20 human plasma or 20 porcine plasma. Biofilm formation was quantified by standard microtiter plate assay and measuring the absorbance at 538 nm, plotted along the y-axis. Bars represent the average absorbance obtained from at least 3 independent plates representing biological replicates; error bars represent the SEM. (EPS)Author ContributionsConceived and designed the experiments: TLN. Performed the experiments: SMS. Analyzed the data: TLN SMS. Contributed reagents/materials/analysis tools: TCS TSF. Wrote the manuscript: TLN SMS. Critically reviewed manuscript: TLN SMS TCS TSF.
The social sciences have entered the age of data science, leveraging the unprecedented sources of written language that social media afford [1?]. Through media such as Facebook and Twitter, used regularly by more than 1/7th of the world’s population [4], variation in mood has been tracked order 3-MA diurnally and across seasons [5], used to predict the stock market [6], and leveraged to estimate happiness across time [7,8]. Search patterns on Google detect influenza epidemics weeks before CDC data confirm them [9], and the digitization of books makes possible the quantitative tracking of cultural trends over decades [10]. To make sense of the massive data available, multidisciplinary collaborations between fields such as computational linguistics and the social sciences are needed. Here, we demonstrate an instrument which uniquely describes similarities and differences among groups of people in terms of their differential language use. Our technique leverages what people say in social media to find distinctive words, phrases, and topics as functions of known attributes of people such as gender, age, location, or psychological characteristics. The standard approach to correlating language use with individual attributes is to examine usage of a priori fixed sets of words [11], limiting findings to preconceived relationships with words or categories. In contrast, we extract a data-driven collection of words, phrases, and topics, in which the lexicon is based on the words of the text being analyzed. This yields a comprehensive description of the differences between groups of people for any given attribute, and allows one to find unexpectedPLOS ONE | www.plosone.orgresults. We call approaches like ours, which do not rely on a priori word or category judgments, open-voca.25. MN135; 26. NJ101; 27. P2(HPH1); 28. T2(T2TGT); 29. T3(TGT); 30. 1457; 31. NJ9709; 32. Concentrated sterile culture medium.doi: 10.1371/journal.pone.0073376.gwithin livestock populations and between livestock and humans.AcknowledgementsThe authors would like to thank Scott Stibitz at the Center for Biologics Evaluation and Research, Food and Drug Administration; and Jeffery Kaplan at the Department of Oral Biology, New Jersey Dental School for generous gift of the strains used in this study. Mention of trade names or commercial products in this article is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. USDA is an equal opportunity provider and employer.Supporting InformationFigure S1. Biofilm formation on plasma coated microtiter plates. Strains tested are shown along the x-axis and grouped based on methicillin-sensitivity and isolation source. The indicated strains were grown statically for 24 hours in tryptic soy broth medium supplemented with 0.5 glucose and 3 NaCl on microtiter plates pre-coated with either 20 human plasma or 20 porcine plasma. Biofilm formation was quantified by standard microtiter plate assay and measuring the absorbance at 538 nm, plotted along the y-axis. Bars represent the average absorbance obtained from at least 3 independent plates representing biological replicates; error bars represent the SEM. (EPS)Author ContributionsConceived and designed the experiments: TLN. Performed the experiments: SMS. Analyzed the data: TLN SMS. Contributed reagents/materials/analysis tools: TCS TSF. Wrote the manuscript: TLN SMS. Critically reviewed manuscript: TLN SMS TCS TSF.
The social sciences have entered the age of data science, leveraging the unprecedented sources of written language that social media afford [1?]. Through media such as Facebook and Twitter, used regularly by more than 1/7th of the world’s population [4], variation in mood has been tracked diurnally and across seasons [5], used to predict the stock market [6], and leveraged to estimate happiness across time [7,8]. Search patterns on Google detect influenza epidemics weeks before CDC data confirm them [9], and the digitization of books makes possible the quantitative tracking of cultural trends over decades [10]. To make sense of the massive data available, multidisciplinary collaborations between fields such as computational linguistics and the social sciences are needed. Here, we demonstrate an instrument which uniquely describes similarities and differences among groups of people in terms of their differential language use. Our technique leverages what people say in social media to find distinctive words, phrases, and topics as functions of known attributes of people such as gender, age, location, or psychological characteristics. The standard approach to correlating language use with individual attributes is to examine usage of a priori fixed sets of words [11], limiting findings to preconceived relationships with words or categories. In contrast, we extract a data-driven collection of words, phrases, and topics, in which the lexicon is based on the words of the text being analyzed. This yields a comprehensive description of the differences between groups of people for any given attribute, and allows one to find unexpectedPLOS ONE | www.plosone.orgresults. We call approaches like ours, which do not rely on a priori word or category judgments, open-voca.
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