Widowhood Effects in Voter Participation

Past research suggests that spouses influence one another to vote, but it relies almost exclusively on correlation in turnout. It is therefore difficult to establish whether spouses mobilize each other or tend to marry similar others. Here, we test the dependency hypothesis by examining voting behavior before and after the death of a spouse. We link nearly six million California voter records to Social Security death records and use both coarsened exact matching and multiple cohort comparison to estimate the effects of spousal loss. The results show that after turnout rates stabilize, widowed individuals vote nine percentage points fewer than they would had their spouse still been living; the results also suggest that this change may persist indefinitely. Variations in this “widowhood effect” on voting support a social‐isolation explanation for the drop in turnout.     

Circumventing Legislative Committees: The US Senate

Committees have been established to improve legislation and make expert recommendations. However, many bills do not appear in committees, and how they reach the Senate floor varies in style and strategy. We develop and test expectations for when, as well as how, bills bypass Senate committee proceedings. The procedures legislators use to circumvent committees and what makes committee bypassing more probable are explored. The findings clearly demonstrate that bills introduced by ideologically extreme minority-party members are more likely to bypass committees. We also show a clear shift in the procedural choices senators make as the Senate becomes increasingly polarized. This article highlights the procedural choices members make, how these choices produce differing outcomes, and suggests evidence of positive agenda power for individual minority-party senators.     

Microgravity protein crystallization for drug development: a bold example of public sector entrepreneurship

The Journal of Technology Transfer - A basic mission of NASA is to use the United States’ segment of the International Space Station (ISS), designated a national laboratory, to facilitate the...     

Researching Fact Checking: Present Limitations and Future Opportunities

The fact checking field has grown tremendously in the past decade, as has academic interest in the practice, with dozens of studies testing the effectiveness of corrections. However, research on fact checking is not yet optimised to help fact checkers address the global challenges of mis- and disinformation. In this paper, we review the literature on fact checking’s effects and identify two key gaps. First, we discuss the limited diversity and external validity of existing studies, which have overwhelmingly been conducted in Western countries and under artificial, experimental conditions. Second, we argue that research has narrowly focussed on the short-term, corrective effects of individual fact checks, largely ignoring the multiple ways fact checkers conceive of their impact. Thus, research has overlooked the cultural and systemic changes that fact checkers pursue. We conclude by highlighting opportunities for further research and for improving communication between academics and fact checkers.     

Addressing the National Academy of Sciences' challenge: a method for statistical pattern comparison of striated tool marks

In February 2009, the National Academy of Sciences published a report entitled "Strengthening Forensic Science in the United States: A Path Forward." The report notes research studies must be performed to "…understand the reliability and repeatability…" of comparison methods commonly used in forensic science. Numerical classification methods have the ability to assign objective quantitative measures to these words. In this study, reproducible sets of ideal striation patterns were made with nine slotted screwdrivers, encoded into high-dimensional feature vectors, and subjected to multiple statistical pattern recognition methods. The specific methods employed were chosen because of their long peer-reviewed track records, widespread successful use for both industry and academic applications, rely on few assumptions on the data's underlying distribution, can be accompanied by standard confidence levels, and are falsifiable. For PLS-DA, correct classification rates of 97% or higher were achieved by retaining only eight dimensions (8D) of data. PCA-SVM required even fewer dimensions, 4D, for the same level of performance. Finally, for the first time in forensic science, it is shown how to use conformal prediction theory to compute identifications of striation patterns at a given level of confidence.     

Current practices by forensic anthropologists in adult skeletal age estimation

When determining an age estimate from adult skeletal remains, forensic anthropologists face a series of methodological choices. These decisions, such as which skeletal region to evaluate, which methods to apply, what statistical information to use, and how to combine information from multiple methods, ultimately impacts the final reported age estimate. In this study, a questionnaire was administered to 145 forensic anthropologists, documenting current trends in adult age at death estimation procedures used throughout the field. Results indicate that the Suchey-Brooks pubic symphysis method (1990) remains the most highly favored aging technique, with cranial sutures and dental wear being the least preferred, regardless of experience. The majority of respondents stated that they vary their skeletal age estimate process case-by-case and ultimately present to officials both a narrow and broad possible age range. Overall, respondents displayed a very high degree of variation in how they generate their age estimates, and indicated that experience and expertise play a large role in skeletal age estimates.     

Lying,Speech and Impersonal Harm

Law and Philosophy - Should the law punish the mere utterance of lies even if the listener has not been deceived? Seana Shiffrin has recently answered this question in the affirmative. She argues...     

The Boundaries of Property: Complexity,Relationality, and Spatiality

What does the property boundary mean to laypersons? How do everyday geographies of property work? Merrill and Smith offer an influential set of hypotheses concerning the boundary's role in communicating simple messages of exclusion in the everyday world. The first goal of this article is to assess these claims. Drawing from qualitative data on gardening from Vancouver, I suggest that the messages of the boundary may also be complex, intersubjective, and ambiguous. The supposedly robust moral intuitions that inform people's interactions with boundaries are not always exclusionary. Drawing from the sharp distinction between the heterogeneity of the empirical record and the studied simplicity of Merrill and Smith's account, my second goal is to make some broader claims regarding property and the boundary. Rather than seeking universality, simplicity, and singularity, I suggest the necessity and value of working with complexity. A relational view of property and space (or “spatiality”), I suggest, offers us a better perspective in which to begin to think about the complex work of the everyday property boundary.