There are growing concerns that increased screen device usage may have a detrimental impact on classroom behaviour and attentional focus. The consequences of screen use on child cognitive functioning have been relatively under-studied, and results remain largely inconsistent. Screen usage may displace the time usually spent asleep. The aim of this study was to examine associations between screen use, behavioural inattention and sustained attention control, and the potential modifying role of sleep. The relations between screen use, behavioural inattention, sustained attention (...) and sleep were investigated in 162 6- to 8-year-old children, using parent-reported daily screen use, the SWAN ADHD behaviour rating scale, The sustained attention to response task and the children’s sleep habits questionnaire. Tablet use was associated with better sustained attention performance but was not associated with classroom behavioural inattention. Shorter sleep duration was associated with poorer behavioural inattention and sustained attention. Sleep quality and duration did not act as mediators between screen usage and behavioural inattention nor sustained attention control. These findings suggest that careful management of the amount of time spent on electronic screen devices could have a beneficial cognitive impact on young children. The results also highlight the critical role of sleep in enhancing both behavioural attention and sustained attention, which are essential for supporting cognitive development and learning. (shrink)

Recent research and theory highlights the distinctive features of shame vs. guilt, as well as the important implications of that distinction for typical and atypical behaviour regulation. Briefly, shame is characterised by withdrawal and hiding from judgemental others, and guilt by making amends–repairing and confessing. The present study was aimed at determining whether a shame-relevant and a guilt-relevant pattern of responses to a standard violation could be distinguished in toddlers.Two-year-old children participated in a play session, during which a mishap occurred (...) that the children appeared to have caused. Based upon whether or not children avoided the experimenter (E) after the mishap, they were dichotomised into a shame-relevant group of subjects (Avoiders) who avoid E after the mishap, are slow to make reparation, and are slow to tell E about the mishap; and a guilt-relevant group (Amenders) showing the opposite pattern. All guilt-relevant behaviours were greater for Amenders than Avoiders, and all but one shame-relevant behaviour was greater for Avoiders than for Amenders, suggesting coherence in the organisation of responses. Moreover, convergent evidence from a maternal report questionnaire indicated that in non-laboratory settings as well, Amenders manifested greater guilt relative to shame than did Avoiders. Further research is needed to determine developmental antecedents and consequences of the Avoider/Amender dichotomy. (shrink)

The evolution of cooperative breeding is complex, and particularly so in humans because many other life history traits likely evolved at the same time. While cooperative childrearing is often presumed ancient, the transition from maternal self-reliance to dependence on allocare leaves no known empirical record. In this paper, an exploratory model is developed that incorporates probable evolutionary changes in birth intervals, juvenile dependence, and dispersal age to predict under what life history conditions mothers are unable to raise children without adult (...) cooperation. The model’s outcome variable (net balance) integrates dependent children’s production and consumption as a function of varying life history parameters to estimate the investment mothers or others have to spend subsidizing children. Results suggest that maternal-juvenile cooperation can support the early transition toward a reduction in birth intervals, a longer period of juvenile dependence, and having overlapping young. The need for adult cooperation is most evident when birth intervals are short and age at net production is late. Findings suggest that the needs of juveniles would not have been an early selective force for adult cooperation. Rather, an age-graded division of labor and the mutual benefits of maternal-juvenile cooperation could be an important, but overlooked step in the evolution of cooperative breeding. (shrink)

John Rawls’s writings on just war, though limited, shed important light on the ethics of political violence. This chapter explores Rawls’s contribution to just war theory, paying particular attention to how he differs from his contemporary, Michael Walzer, as well as from future methodological sympathizers, the “revisionists,” who also turn to analytical philosophy to draw insights about just war. In contrast to the “revisionists,” however, Rawls does not take the reductive individualist turn. Rather, he extends the original position that defines (...) the domestic setting to peoples inhabiting the international level. This assumption sets the stage for his theorizing about just war, which tracks closely with Kant (on democratic peace theory) and Walzer (on supreme emergency), while offering insights into just war against “outlaw” states, individual conscientious objection in response to unjust wars, and the role that just war tenets might play in setting the stage for peace. Ultimately, Rawls’s thinking about the place of political collectives in the international domain offers insights for better navigating the methodological disagreements between traditional and revisionist views of just war from a largely untapped but analytically rigorous, perspective. (shrink)

Newton (1643-1727) es considerado una de las más importantes figuras de la historia de la ciencia moderna. Así como Descartes es considerado el fundador de la moderna filosofía de la subjetividad, Newton es visto como el fundador de la moderna ciencia matemática de la naturaleza, en particular de la mecánica, que ha operado alrededor de dos siglos de manera paradigmática y a la que solemos caracterizar como "física clásica". Aunque Newton no es en modo alguno el único innovador de la (...) ciencia moderna -al lado de él participaron también otros como Copémico, Kepler, Galileo, Descartes-, logró, empero, merced a la introducción de la fuerza de la gravitación, unificar diferentes formas de movimiento, como los terrestres -la caída libre, el movimiento del péndulo, el lanzamiento- y los celestes, -los movimientos de los planetas los cuales con Galileo aún permanecían desconectados unos al lado de otros y demostrarlos como una modificación de la misma fuerza fundamental y dar, gracias a ello, una estructura unitaria, sistemática a la teoría del movimiento. Ningún otro sistema representa de una forma tan fiel el concepto de paradigma de Kuhn, como la mecánica newtoniana. (shrink)

This article explores the processes through which Australian recipients select unknown donors for use in assisted reproductive technologies and speculates on how those processes may affect the future life of the donor-conceived person. I will suggest that trust is an integral part of the exchange between donors, recipients, and gamete agencies in donor conception and heavily informs concepts of relatedness, race, ethnicity, kinship, class, and visibility. The decision to be transparent about a child’s genetic parentage affects recipient parents’ choices of (...) donor, about who is allowed to “know” children’s genetic backgrounds, and how important it is to be able to “pass” as an unassisted conception. In this way, recipients must trust the process, institutions, and individuals involved in their treatment, as well as place trust in the future they imagine for their child. The current market for donor gametes reproduces normative conceptions of the nuclear family, kinship, and relatedness by facilitating “matching” donors to recipients by phenotype and cultural affinities. Recipient parents who choose not to prioritize “matching,” and actively disclose the process of children’s conceptions, may embark on a project of queering heteronormative family structures and place great trust in both their own children and changing social attitudes to reduce stigma and generate acceptance for non-traditional families. (shrink)

Typically, a less fundamental theory, or structure, emerging from a more fundamental one is an example of synchronic emergence. A model emerging from a prior model upon which it nevertheless depends is an example of diachronic emergence. The case of spacetime emergent from quantum gravity and quantum cosmology challenges these two conceptions of emergence. Here, I propose two more-general conceptions of emergence, analogous to the synchronic and diachronic ones, but which are potentially applicable to the case of emergent spacetime: an (...) inter-level, hierarchical conception, and an intra-level, ‘flat’ conception. I then explore whether, and how, these ideas may be applicable in the case of several putative examples of relativistic spacetime emergent from the non-spatiotemporal structures described by different approaches to quantum gravity, and of spacetime emergent from a non-spatiotemporal ‘big bang’ state according to different examples of quantum cosmology. (shrink)

In 1892, Eliakim Hastings Moore accepted the task of building a mathematics department at the University of Chicago. Working in close conjuction with the other original department members, Oskar Bolza and Heinrich Maschke, Moore established a stimulating mathematical environment not only at the University of Chicago, but also in the Midwest region and in the United States in general. In 1893, he helped organize an international congress of mathematicians. He followed this in 1896 with the organization of the Midwest Section (...) of the New York City-based American Mathematical Society. He became the first editor-in-chief of the Society's Transactions in 1899, and rose to the presidency of the Society in 1901. (shrink)

The interventionist account of causation has been largely dismissed as a serious candidate for application in physics. This dismissal is related to the problematic assumption that physical causation is entirely a matter of dynamical evolution. In this article, I offer a fresh look at the interventionist account of causation and its applicability to thermodynamics. I argue that the interventionist account of causation is the account of causation that most appropriately characterizes the theoretical structure and phenomenal behavior of thermodynamics.

La problemática está planteada en la perspectiva actual, ante las críticas de la física (teoría de la relatividad), la filosofía (la fenomenología de los estratos subjetivos y vivenciales del tiempo), y las ciencias de la cultura (etnología y filosofía de la religión). Luego se explica la modificación que Kant introduce en el concepto newtoniano del tiempo, y se estudian finalmente las ventajas y las desventajas del tiempo posicional puro de Kant para la estructura modal-temporal, si se quiere pasar de lo (...) subjetivo a lo objetivo del tiempo. (shrink)

This article presents a theoretical framework that views interpersonal power as interdependent with broader structures of gender and class inequalities. In contrast to oversimplified, gender-neutral or gender-static approaches, this approach illuminates the ways that structures of inequality are expressed in ideological hegemonies, which enhance, legitimate, and mystify the interpersonal power of privileged men relative to lower-status men and women in general. The discussion centers on how the relational construction of ascendant and subordinated masculinities provide men with different modes of interpersonal (...) power that, when exercised, construct and reaffirm interclass male dominance. Examples of how the construction of femininity can undermine women's interpersonal power and implications for other forms of masculinities and femininities are discussed. Examples are drawn from an analysis of conjugal power in the accounts of remarried individuals' first and second marriages to illustrate the main points of this perspective. (shrink)

Quantum gravity is understood as a theory that, in some sense, unifies general relativity (GR) and quantum theory, and is supposed to replace GR at extremely small distances (high-energies). It may be that quantum gravity represents the breakdown of spacetime geometry described by GR. The relationship between quantum gravity and spacetime has been deemed ``emergence'', and the aim of this thesis is to investigate and explicate this relation. After finding traditional philosophical accounts of emergence to be inappropriate, I develop a (...) new conception of emergence by considering physical case studies including condensed matter physics, hydrodynamics, critical phenomena and quantum field theory understood as effective field theory. This new conception of emergence is unconcerned with the ideas of reduction and derivation (i.e. it holds that we may have emergence with reduction or without it). Instead, a low-energy theory (or model) is understood as emergent from a high-energy theory if it is novel and autonomous compared to the high-energy theory, and the low-energy physics is dependent in a particular, minimal sense on the high-energy physics (this dependence is revealed by the techniques of effective field theory and the renormalisation group). While novelty is construed in a broad sense, the autonomy comes essentially from the underdetermination of the high-energy theory by the low-energy theory, which reflects the minimal way in which the emergent, low-energy theory depends on the high-energy one. It results from the scaling behaviour of the theories and the limiting relations between them, and is demonstrated by the renormalisation group and effective field theory techniques, the idea of universality, and the phenomenon of symmetry-breaking. These ideas are important in exploring the relationship between quantum gravity and GR, where GR is understood as an effective, low-energy theory of quantum gravity. Without experimental data or a theory of quantum gravity, we rely on principles and techniques from other areas of physics to guide the way. As well as considering the idea of emergence appropriate to treating GR as an effective field theory, I investigate the emergence of spacetime (and other aspects of GR) in several concrete approaches to quantum gravity, including examples of the condensed matter approaches, the ``discrete approaches'' (causal set theory, causal dynamical triangulations, quantum causal histories and quantum graphity) and loop quantum gravity. (shrink)

Taiwan and Kurdistan appear to have little in common, but the progressive values of these two societies embedded within hostile regions make them both natural allies and important strategic assets in the U.S.’s and international community’s long-term fight against authoritarianism and radical religious theocracies. Instead, they have been ignored and/or exploited in the pursuit of short-term geopolitical and economic interests in the Asia-Pacific and Middle East regions, which comes at great cost to American and international values as well as long-term (...) strategic interests, so both citizens and policymakers must consider new approaches. (shrink)

Although databases have been well-defined and thoroughly discussed in the computer science literature, the actual users of databases often have varying definitions and expectations of this essential computational infrastructure. Systems administrators and computer science textbooks may expect databases to be instantiated in a small number of technologies, but there are numerous examples of databases in non-conventional or unexpected technologies, such as spreadsheets or other assemblages of files linked through code. Consequently, we ask: How do the materialities of non-conventional databases differ (...) from or align with the materialities of conventional relational systems? What properties of the database do the creators of these artifacts invoke in their rhetoric describing these systems—or in the data models underlying these digital objects? To answer these questions, we conducted a close analysis of four non-conventional scientific databases. By examining the materialities of information representation in each case, we show how scholarly communication regimes shape database materialities—and how information organization paradigms shape scholarly communication. These cases show abandonment of certain constraints of relational database construction alongside maintenance of some key relational data organization strategies. We discuss the implications that these relational data paradigms have for data use, preservation, and sharing, and discuss the need to support a plurality of data practices and paradigms. (shrink)

We tested the good genes ovulatory shift hypothesis through speed-dating, an ecologically valid paradigm with real life consequences. Fifteen speed-dating sessions of 262 single Asian Americans were held. We analyzed 850 speed-dates involving 132 men and 100 normally ovulating women, finding ovulatory shifts in the desirability of men with more masculine facial measurements (smaller eye–mouth–eye angle, larger lower face to full face height ratio, and smaller facial width to lower face height ratio) in the predicted direction. However, there was no (...) support for ovulatory shifts in preferences for men’s self-reported height. In addition, the expected shifts were not found for women’s second date offers to men. Therefore, with natural stimuli and in a competitive dating scenario, we partially replicated previously documented ovulatory shifts in women’s preferences for men. (shrink)

This study has two agendas: to interrogate popular notions of religion by reading it, out of Derrida and Certeau, as a signifier for a situated historical scene; and to show the existential philosophy of Beauvoir as a performance of that scene. In particular, it shows how the structure of relationships she presents in her ethics clearly reproduces the rhythms of the scene of religion. One of the implications of this reproduction is that existential philosophy can only emerge in the context (...) of religion, and is necessarily an iteration of religion. The other implication is that we might reassess how we code the category ‘religion’ in our public and private discourse, with all the disruption that such a different coding might entail. (shrink)

Paul Needham has claimed in several recent papers that Dalton’s chemical atomism was not explanatory. I respond to his criticism of Dalton by arguing that explanation admits of degrees and that under a view that allows for a spectrum of explanatory value, it is possible to see ample worth in Dalton’s atomistic explanations. Furthermore, I argue that even Duhem, who rejected atomism, acknowledged the explanatory worth of Dalton’s atomism.

With the stunning spread of democracy over large swathes of the globe since 1975 seemingly coming to a halt and perhaps receding in recent years, we revisit the question of whether democracy is really compatible with all types of cultures and philosophies, particularly those from Asia, where nearly two-thirds of the world’s population lives. Joseph Chan’s *Confucian Perfectionism: A Political Philosophy for Modern Times* (Princeton University Press, 2014) reconstructs Confucianism in order to meld it with democracy in a mutually advantageous (...) marriage. Democracy can address the dangerous problem of the lack of accountability — the historical record is quite clear about what happens when rulers, even those who are wise and well-meaning, are unconstrained. This, unfortunately, is a problem that Confucianism shares. On the other hand, Confucianism can bring to the table not just virtues in general, but particular virtues that are often sadly lacking and sorely needed in democratic politics such as civility, benevolence, integrity, knowledge, and honesty. (shrink)

Social scientists have provided rich descriptions of the ascendant cultural ideologies surrounding motherhood and paid work. In this article, I use in-depth interviews with a diverse sample of 40 employed mothers to explore how they navigate the “intensive mother” and “ideal worker” ideologies and construct their own accounts of good mothering. Married mothers in this sample construct scripts of “extensive mothering,” in which they delegate substantial amounts of the day-to-day child care to others, and reframe good mothering as being “in (...) charge” of and ultimately responsible for their children’s well-being. Single mothers describe extensive mothering in different ways, and their narratives suggest less accountability to the “intensive mothering” model. Mothers in this sample also justify employment in novel ways: They emphasize the benefits of employment for themselves—not only their children—and they reject the long work hours imposed by an ideal worker model. The article ends with the implications of extensive mothering for the motherhood and employment literatures and for gender equality. (shrink)

Based on interviews with a random sample of white women who are in a second marriage, this article examines changes in women's marital power across marriage, divorce, and remarriage. In some marriages, women's market work is not considered a resource and hence does not have a positive effect on marital power, particularly when husbands are employed in low-status occupations. Conversely, women who are domestically oriented do not necessarily suffer a loss of power. Hochschild's concept of “economy of gratitude” illuminates the (...) way that marital power is affected by the meanings couples assign to women's paid and unpaid labor. Furthermore, women's previous market work and marital and divorce experiences affect the meaning of their paid and unpaid labor upon remarriage, as well as their desire for each. (shrink)

"This collection of works is ambitious, well documented, thoroughly—though not turgidly—referenced, and comprehensively indexed.