PLOS-1: Can Sibling Sex Ratios be used as a valid test of the prenatal androgen hypothesis of autism spectrum disorders? by Keely Cheslack-Postava, Ka-Yuet Liu, Alix Winter, and Peter Bearman

In a large, population-based sample we failed to find evidence suggesting an excess of brothers among children with autism while controlling for several threats to validity. This test cannot rule out a role of any given exposure, including prenatal testosterone, in either risk of autism or offspring sex ratio, but suggests against a common cause of both.

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PNAS: Lexical shifts, substantive changes, and continuity in State of the Union discourse, 1790–2014 by Alix Rule, Jean-Phillipe Cointet and Peter Barman

We develop a strategy for identifying meaningful categories in textual corpora that span long historic durées, where terms, concepts, and language use changes. Our approach is able to account for the fluidity of discursive categories over time, and to analyze their continuity by identifying the discursive stream as the object of interest.

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Human Reproduction: Association of Assisted Reproductive Technology (ART) Treatment and Parental Infertility Diagnosis with Autism in ART-Conceived Children by Kissen, et al.

Our study provides additional evidence of the association between some types of Assisted Reproductive Technology procedures with autism diagnosis. Additional research is required to explain the increased risk of autism diagnosis with intracytoplasmic sperm injection (ICSI) use, as well as studies on the effectiveness and safety of ICSI.

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The Apollo Theater Oral History Collection (CCOHR), 2008-2011

Conducted in conjunction with the Apollo Theater Foundation in anticipation of the theater's 75th anniversary, those interviewed for this collection include performers in music, dance, and comedy; business managers; music industry employees; previous owners; and audience members who recount their relationship with the Apollo and their perceptions of its legacy.

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Social Forces: The Influence of Political Dynamics on Southern Lynch Mob Formation and Lethality by Ryan Hagen, Kinga Makovi, and Peter Bearman

Existing literature focuses on economic competition as the primary causal factor in Southern lynching. Political drivers have been neglected, as findings on their effects have been inconclusive. We show that these consensus views arise from selection on a contingent outcome variable: whether mobs intent on lynching succeed.

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