Reparative Reasoning

Peter Ochs' notion of ‘pragmatic reading’ and his wider project of articulating a ‘logic of scripture’ are described in the first part of this article. A distinction is made between Ochs' proposals for how to read scripture and his more technical claims about how scripture itself models a ‘logic of repair’. The term ‘thirdness’ is explained in the contexts of the relations and axioms, hypotheses and communities. His readings of Hans Frei and George Lindbeck are rehearsed briefly in the second section. Their attempts to show that there is nothing ‘behind’ scripture or doctrine, to which the latter supposedly refer, are presented by Ochs as ‘pragmatic’ attempts to repair the rules which generate false oppositions in discussions of scripture and doctrine

Paid Family and Medical Leave in New Hampshire: Who Has It? Who Takes It?

This brief uses data collected by the Granite State Poll in 2016 to examine New Hampshire workers’ access to paid family and medical leave and the use of paid or unpaid leave for family and medical reasons. Understanding who lacks access to paid family and medical leave benefits and the underlying factors contributing to differences in those who take time away from work for family caregiving is important. Without access to paid family and medical leave, New Hampshire’s working families may face barriers to financial stability, employment, and future opportunities. Author Kristin Smith reports that about one-third of New Hampshire workers have jobs without extended paid leave to tend to their own illness; about half lack access to parental leave; and two-thirds lack access to paid leave to care for an ill family member. Less than a third of workers have access to all three types of extended paid leave (for their own illness, parental leave, and care for a family member). Workers living in families earning less than $60,000 a year have less access to extended paid family and medical leave benefits than do those with higher incomes. Women are less likely to have jobs that provide paid family and medical leave but are more likely to take leave. Sixty percent of employed women have taken paid or unpaid family and medical leave compared with 40 percent of employed men. New Hampshire men who know another man who has taken leave without negative consequences are twice as likely to take leave themselves compared to men who do not know another man taking leave (52 and 24 percent, respectively)

Child care subsidies critical for low-income families amid rising child care expenses

The high cost of child care is a barrier to employment among low-income families with young children. Child care subsidies are designed to support both parental employment and child development by lowering the cost of child care and making high-quality child care affordable to low-income families. This policy brief compares the shares of income spent on child care in 2005 and 2011 using data collected by the U.S. Census Bureau. Authors Kristin Smith and Nicholas Adams report that child care expenditures were higher on average in 2011 than in 2005 (in constant 2011 dollars) and that employed, poor mothers with child care expenses spent more than one-third of their incomes on child care in 2005 and 201

Redesigned Storm Water Management System for the Portage Lakefront

The work described here was carried out at the Indiana Dunes National Lakeshore, located near Gary, Indiana. The goal of the reported project was to fix an incorrectly designed storm water management system located at the Portage lakefront. Because the original design could not handle peak water flows, there has been erosion of the sand dunes. The erosion of the sand dunes has led to the collapsing of stairs, and the exposure of water mains. To fix these problems, a new design was made that incorporated additional water inlets, as well as a pipeline to take water to a different location. After completing these initial ideas and calculations, the project is being sent to a contracting company for construction

Motion adaptation and attention: A critical review and meta-analysis

The motion aftereffect (MAE) provides a behavioural probe into the mechanisms underlying motion perception, and has been used to study the effects of attention on motion processing. Visual attention can enhance detection and discrimination of selected visual signals. However, the relationship between attention and motion processing remains contentious: not all studies find that attention increases MAEs. Our meta-analysis reveals several factors that explain superficially discrepant findings. Across studies (37 independent samples, 76 effects) motion adaptation was significantly and substantially enhanced by attention (Cohen's d = 1.12, p < .0001). The effect more than doubled when adapting to translating (vs. expanding or rotating) motion. Other factors affecting the attention-MAE relationship included stimulus size, eccentricity and speed. By considering these behavioural analyses alongside neurophysiological work, we conclude that feature-based (rather than spatial, or object-based) attention is the biggest driver of sensory adaptation. Comparisons between naïve and non-naïve observers, different response paradigms, and assessment of 'file-drawer effects' indicate that neither response bias nor publication bias are likely to have significantly inflated the estimated effect of attention

Do emotional faces capture attention, and does this depend on awareness? Evidence from the visual probe paradigm

The visual probe (VP) paradigm provides evidence that emotional stimuli attract attention. Such effects have been reported even when stimuli are presented outside of awareness. These findings have shaped the idea that humans possess a processing pathway that detects evolutionarily significant signals independently of awareness. Here, we addressed 2 unresolved questions: First, if emotional stimuli attract attention, is this driven by their affective content, or by low-level image properties (e.g., luminance contrast)? Second, does attentional capture occur under conditions of genuine unawareness? We found that observers preferentially allocated attention to emotional faces under aware viewing conditions. However, this effect was best explained by low-level stimulus properties, rather than emotional content. When stimuli were presented outside of awareness (via continuous flash suppression or masking), we found no evidence that attention was directed toward emotional face stimuli. Finally, observer's awareness of the stimuli (assessed by d') predicted attentional cuing. Our data challenge existing literature: First, we cast doubt on the notion of preferential attention to emotional stimuli in the absence of awareness. Second, we question whether effects revealed by the VP paradigm genuinely reflect emotion-sensitive processes, instead suggesting they can be more parsimoniously explained by low-level variability between stimuli. (PsycINFO Database Record (c) 2019 APA, all rights reserved)

Reducing Reparameterization Gradient Variance

Optimization with noisy gradients has become ubiquitous in statistics and machine learning. Reparameterization gradients, or gradient estimates computed via the "reparameterization trick," represent a class of noisy gradients often used in Monte Carlo variational inference (MCVI). However, when these gradient estimators are too noisy, the optimization procedure can be slow or fail to converge. One way to reduce noise is to use more samples for the gradient estimate, but this can be computationally expensive. Instead, we view the noisy gradient as a random variable, and form an inexpensive approximation of the generating procedure for the gradient sample. This approximation has high correlation with the noisy gradient by construction, making it a useful control variate for variance reduction. We demonstrate our approach on non-conjugate multi-level hierarchical models and a Bayesian neural net where we observed gradient variance reductions of multiple orders of magnitude (20-2,000x)

Latitudinal distribution and mitochondrial DNA (COI) variability of Stereotydeus spp. (Acari: Prostigmata) in Victoria Land and the central Transantarctic Mountains

We examined mitochondrial DNA (COI) variability and distribution of Stereotydeus spp. in Victoria Land and the Transantarctic Mountains, and constructed Neighbour Joining (NJ) and Maximum Likelihood (ML) phylogenetic trees using all publicly available COI sequences for the three Stereotydeus species present (S. belli, S. mollis and S. shoupi). We also included new COI sequences from Miers, Marshall and Garwood valleys in southern Victoria Land (78°S), as well as from the Darwin (79°S) and Beardmore Glacier (83°S) regions. Both NJ and ML methods produced trees which were similar in topology differing only in the placement of the single available S. belli sequence from Cape Hallett (72°S) and a S. mollis haplotype from Miers Valley. Pairwise sequence divergences among species ranged from 9.5–18.1%. NJ and ML grouped S. shoupi from the Beardmore Glacier region as sister to those from the Darwin with pairwise divergences of 8%. These individuals formed a monophyletic clade with high bootstrap support basal to S. mollis and S. belli. Based on these new data, we suggest that the distributional range of S. shoupi extends northward to Darwin Glacier and that a barrier to dispersal for Stereotydeus, and possibly other arthropods, exists immediately to the north of this area