Although the COVID-19 pandemic has raised deserved concern regarding adverse impacts on parents’ and children’s mental health, regulations like “sheltering-in-place” may have afforded parents novel opportunities to foster positive family connections, thereby bolstering well-being. Using latent profile analysis, we distinguished family thriving during shelter-in-place from other patterns of family functioning, tested potential predictors of family functioning profiles, and examined if family thriving predicted subsequent child adjustment. 449 parents in two-parent U.S. families with children aged 2–18 years completed online surveys assessing (...) parent–child relationship quality, parents’ positive psychological adjustment, children’s emotional well-being, and parenting efficacy and satisfaction as family functioning indicators, financial, marital, parental psychosocial assets, and child predictors of family functioning, and child adjustment. LPA identified four family functioning profiles: Thriving, Managing, Struggling, and Distressed. Thriving families evinced higher scores on all functioning indicators. Logistic regressions revealed that parents in Thriving families reported significantly lower financial anxiety, less dissatisfaction with partner’s help, less child emotionality, and greater use of cognitive reappraisal, as well as more positive child adjustment in Fall 2020. These findings underscore the multidimensional nature of coping and well-being during COVID-19. Utilizing these levers to promote mental health in families languishing during comparable future crises could promote resilience, thereby protecting children’s well-being. (shrink)

The Declaration of Helsinki and the Council of the International Organization of Medical Sciences provide guidance on standards of care and prevention in clinical trials. In the current and increasingly challenging research environment, the ethical status of a trial design depends not only on protection of participants, but also on social value, feasibility, and scientific validity. Using the example of a study assessing efficacy of a vaccine to prevent human papilloma virus in HIV-1 infected adolescent girls in low resource countries (...) without access to the vaccine, we compare several trial designs which rank lower on some criteria and higher on others, giving rise to difficult trade-offs. This case demonstrates the need for developing more nuanced guidance documents to help researchers balance these often conflicting criteria. (shrink)

We consider extensions of Peano arithmetic suitable for doing some of nonstandard analysis, in which there is a predicate N(x) for an elementary initial segment, along with axiom schemes approximating ω 1 -saturation. We prove that such systems have the same proof-theoretic strength as their natural analogues in second order arithmetic. We close by presenting an even stronger extension of Peano arithmetic, which is equivalent to ZF for arithmetic statements.

Predictable somatosensory feedback leads to a reduction in tactile sensitivity. This phenomenon, called tactile suppression, relies on a mechanism that uses an efference copy of motor commands to help select relevant aspects of incoming sensory signals. We investigated whether tactile suppression is modulated by the task-relevancy of the predicted consequences of movement and the intensity of related somatosensory feedback signals. Participants reached to a target region in the air in front of a screen; visual or tactile feedback indicated the reach (...) was successful. Furthermore, tactile feedback intensity varied across two groups of participants. We measured tactile suppression by comparing detection thresholds for a probing vibration applied to the finger either early or late during reach and at rest. As expected, we found an overall decrease in late-reach suppression, as no touch was involved at the end of the reach. We observed an increase in the degree of tactile suppression when strong tactile feedback was given at the end of the reach, compared to when weak tactile feedback or visual feedback was given. Our results suggest that the extent of tactile suppression can be adapted to different demands of somatosensory processing. Downregulation of this mechanism is invoked only when the consequences of missing a weak movement sequence are severe for the task. The decisive factor for the presence of tactile suppression seems not to be the predicted action effect as such, but the need to detect and process anticipated feedback signals occurring during movement. (shrink)

In this paper we consider some axiomatic systems of set theory related to the system NF (New Foundations) of Quine. In particular we discuss the possible relations of cardinality between a finite set x and its subset class SC(x) = {y | y ∩ x} and also between x and its unit set class USC(x) = {{y} | y ε x}. Specker [5] has shown that in NF the cardinal of a finite set x can never be the same as (...) the cardinal of SC(x). (shrink)

An extraordinary, if circumscribed, positive shift has occurred since the mid-twentieth century in the perceived status of Hugh Everett III's 1956 theory of the universal wave function of quantum mechanics, now widely called the Many-Worlds Interpretation (MWI). Everett's starkly new interpretation denied the existence of a separate classical realm, contending that the experimental data can be seen as presenting a state vector for the whole universe. Since there is no state vector collapse, reality as a whole is strictly deterministic. Explained (...) jointly by the dynamical variables and the state vector, “this reality is not the reality we customarily think of, but is a reality composed of many worlds,” wrote Everett's colleague Bryce DeWitt. In this essay, I account briefly for the change of status in conventional scientific terms, yet chiefly in extended terms of three sets of ideas that I argue can be understood to affect believability in both scientific and religious contexts, illuminating helpfully the MWI phenomenon, and its engagement with theology: orthodoxy and heresy, language and reference, and faith and agnosticism. One's orientation relative to the variable content of these dynamic, socially oriented categories helps to make belief in ideas as metaphysically challenging as Everettian Quantum Mechanics, or particular ideas about God, either more or less believable. The categories will have the same function in a theology engaging Everett's theory, and in any theology at all written in a society deeply marked by what I further argue is a subtle, powerful, and pervasive mode of quasi-scientific thinking we can call societal constructive agnosticism, of which anyone doing theology today must be aware. (shrink)

During each school semester, students face an onslaught of material to be learned. Students work hard to achieve initial mastery of the material, but when they move on, the newly learned facts, concepts, and skills degrade in memory. Although both students and educators appreciate that review can help stabilize learning, time constraints result in a trade-off between acquiring new knowledge and preserving old knowledge. To use time efficiently, when should review take place? Experimental studies have shown benefits to long-term retention (...) with spaced study, but little practical advice is available to students and educators about the optimal spacing of study. The dearth of advice is due to the challenge of conducting experimental studies of learning in educational settings, especially where material is introduced in blocks over the time frame of a semester. In this study, we turn to two established models of memory—ACT-R and MCM—to conduct simulation studies exploring the impact of study schedule on long-term retention. Based on the premise of a fixed time each week to review, converging evidence from the two models suggests that an optimal review schedule obtains significant benefits over haphazard (suboptimal) review schedules. Furthermore, we identify two scheduling heuristics that obtain near optimal review performance: (a) review the material from μ-weeks back, and (b) review material whose predicted memory strength is closest to a particular threshold. The former has implications for classroom instruction and the latter for the design of digital tutors. (shrink)

Philosophy of Communication Ethics is a unique and timely volume that creatively examines communication ethics, philosophy of communication, and "the other.".

This paper addresses arguments that “separability” is an assumption of Bell’s theorem, and that abandoning this assumption in our interpretation of quantum mechanics (a position sometimes referred to as “holism”) will allow us to restore a satisfying locality principle. Separability here means that all events associated to the union of some set of disjoint regions are combinations of events associated to each region taken separately.In this article, it is shown that: (a) localised events can be consistently defined without implying separability; (...) (b) the definition of Bell’s locality condition does not rely on separability in any way; (c) the proof of Bell’s theorem does not use separability as an assumption. If, inspired by considerations of non-separability, the assumptions of Bell’s theorem are weakened, what remains no longer embodies the locality principle. Teller’s argument for “relational holism” and Howard’s arguments concerning separability are criticised in the light of these results. Howard’s claim that Einstein grounded his arguments on the incompleteness of QM with a separability assumption is also challenged. Instead, Einstein is better interpreted as referring merely to the existence of localised events. Finally, it is argued that Bell rejected the idea that separability is an assumption of his theorem. (shrink)

Critical thinking, defined as a person's ability and inclination to make and assess conclusions based on evidence is a commonly studied area of education. This issue focuses on using the case study method to promote critical thinking. The goal of critical thinking, i.e. leading others to become critical thinkers, can best be reached and, indeed, perhaps can only be reached in a learner-centered climate. Today's curriculum reform is calling for teachers to align their curricula with state and national standards, and (...) central to this goal is the ability to evaluate the curriculum. While the case study method is an ideal vehicle to promote critical thinking in the classroom, its application need not be limited to the classroom. (PsycINFO Database Record (c) 2007 APA, all rights reserved). (shrink)

We present a new modeling framework for recognition memory and repetition priming based on signal detection theory. We use this framework to specify and test the predictions of 4 models: (a) a single-system (SS) model, in which one continuous memory signal drives recognition and priming; (b) a multiple-systems-1 (MS1) model, in which completely independent memory signals (such as explicit and implicit memory) drive recognition and priming; (c) a multiple-systems-2 (MS2) model, in which there are also 2 memory signals, but some (...) degree of dependence is allowed between these 2 signals (and this model subsumes the SS and MS1 models as special cases); and (d) a dual-process signal detection (DPSD1) model, 1 possible extension of a dual-process theory of recognition (Yonelinas, 1994) to priming, in which a signal detection model is augmented by an independent recollection process. The predictions of the models are tested in a continuous-identification-with-recognition paradigm in both normal adults (Experiments 1–3) and amnesic individuals (using data from Conroy, Hopkins, & Squire,2005). The SS model predicted numerous results in advance. These were not predicted by the MS1 model, though could be accommodated by the more flexible MS2 model. Importantly, measures of overall model fit favored the SS model over the others. These results illustrate a new, formal approach to testing theories of explicit and implicit memory. (shrink)

In 1984, Henson and Rubel [2] proved the following theorem: If p(x₁, ..., x n ) is an exponential polynomial with coefficients in with no zeroes in ℂ, then $p({x_1},...,{x_n}) = {e^{g({x_{1......}}{x_n})}}$ where g(x₁......x n ) is some exponential polynomial over ℂ. In this paper, I will prove the analog of this theorem for Zilber's Pseudoexponential fields directly from the axioms. Furthermore, this proof relies only on the existential closedness axiom without any reference to Schanuel's conjecture.

We introduce and discuss a concept of approximation of a topological algebraic system A by finite algebraic systems from a given class K. If A is discrete, this concept agrees with the familiar notion of a local embedding of A in a class K of algebraic systems. One characterization of this concept states that A is locally embedded in K iff it is a subsystem of an ultraproduct of systems from K. In this paper we obtain a similar characterization of (...) approximability of a locally compact system A by systems from K using the language of nonstandard analysis. In the signature of A we introduce positive bounded formulas and their approximations; these are similar to those introduced by Henson [14] for Banach space structures (see also [15, 16]). We prove that a positive bounded formula φ holds in A if and only if all precise enough approximations of φ hold in all precise enough approximations of A. We also prove that a locally compact field cannot be approximated arbitrarily closely by finite (associative) rings (even if the rings are allowed to be non-commutative). Finite approximations of the field R can be considered as possible computer systems for real arithmetic. Thus, our results show that there do not exist arbitrarily accurate computer arithmetics for the reals that are associative rings. (shrink)

As someone diagnosed with severe chronic mental illness early in my adolescence, I have spent over half of my life feeling out of step with the rest of the world due to hospitalizations, treatment programs, and the disruptions caused by anxiety, anorexia, depression, and obsessive–compulsive disorder. The effect of my mental health conditions compounded by these treatment environments means I often feel that I experience time passing differently, which results in sensations of removal and isolation from those around me. The (...) global shutdown caused by the COVID-19 pandemic seemed a way for normative bodies to experience the passing of time the way I always have. In this paper, I extend Dr. Sara Wasson’s analysis of the ways in which chronic pain resists narrative coherence to my own temporal experience of chronic mental illness, specifically my embodied experience of the pandemic. I use that embodied experience as a case study for examining how the reciprocal nature of time and narrativity, as outlined by Dr. Paul Ricoeur, can create isolation for those struggling with their temporality due to chronic mental illness. To acknowledge and grapple with the ramifications of discursive and material privilege involved in such situations, I include an analysis of Robert Desjarlais’s 1994 article “Struggling Along: The Possibilities for Experience among the Homeless Mentally Ill,” in which he investigates a similar phenomenon of being outside of structured sequential narrative time in the residents of a Boston shelter for the mentally ill. (shrink)

Alice Walker claims that the “advantageous heritage” of Black southern life is replete with intellectual meat for thinking and writing. How might the insights found in this “advantageous heritage” enrich our discussions of Black feminism in philosophy? Taking stock of this “advantageous heritage” is no mean feat in the discipline of philosophy as it sits at the intersection of two subfields that are already marginalized: Black feminist philosophy and southern philosophy. To help situate southern Black feminist philosophy, I draw upon (...) Kristie Dotson's model of “inheritance maps,” or an “attempt to take stock of what one has been given in a particular project and what one inherits as work yet to do.” Focusing primarily on the theme of refusal, I develop an “inheritance map” that lays out aspects of southern Black feminism that I have inherited from Angela Davis's Blues Legacies and Black Feminism. (shrink)

In the Politics of Black Joy, Lindsey Stewart develops Hurston's contributions to political theory and philosophy of race by introducing the politics of joy as a refusal of neoabolitionism, a political tradition that reduces southern Black life to tragedy or social death.