We argue that how players perceive the attack-defense game might matter far more than its actual underlying structure in determining the outcomes of intergroup conflict. Leaders can use various tactics to dynamically modify these perceptions, from collective victimization to the distortion of the perceived payoffs, with some followers being more receptive than others to such leadership tactics.

We propose a reformulation of the ideal $\mathcal {N}$ of Lebesgue measure zero sets of reals modulo an ideal J on $\omega $, which we denote by $\mathcal {N}_J$. In the same way, we reformulate the ideal $\mathcal {E}$ generated by $F_\sigma $ measure zero sets of reals modulo J, which we denote by $\mathcal {N}^*_J$. We show that these are $\sigma $ -ideals and that $\mathcal {N}_J=\mathcal {N}$ iff J has the Baire property, which in turn is equivalent to (...) $\mathcal {N}^*_J=\mathcal {E}$. Moreover, we prove that $\mathcal {N}_J$ does not contain co-meager sets and $\mathcal {N}^*_J$ contains non-meager sets when J does not have the Baire property. We also prove a deep connection between these ideals modulo J and the notion of nearly coherence of filters (or ideals). We also study the cardinal characteristics associated with $\mathcal {N}_J$ and $\mathcal {N}^*_J$. We show their position with respect to Cichoń’s diagram and prove consistency results in connection with other very classical cardinal characteristics of the continuum, leaving just very few open questions. To achieve this, we discovered a new characterization of $\mathrm {add}(\mathcal {N})$ and $\mathrm {cof}(\mathcal {N})$. We also show that, in Cohen model, we can obtain many different values to the cardinal characteristics associated with our new ideals. (shrink)

We expand our effective framework for weak convergence of measures on the real line by showing that effective convergence in the Prokhorov metric is equivalent to effective weak convergence. In addition, we establish a framework for the study of the effective theory of vague convergence of measures. We introduce a uniform notion and a non-uniform notion of vague convergence, and we show that both these notions are equivalent. However, limits under effective vague convergence may not be computable even when they (...) are finite. We give an example of a finite incomputable effective vague limit measure, and we provide a necessary and sufficient condition so that effective vague convergence produces a computable limit. Finally, we determine a sufficient condition for which effective weak and vague convergence of measures coincide. As a corollary, we obtain an effective version of the equivalence between classical weak and vague convergence of sequences of probability measures. (shrink)

Normal 0 21 false false false MicrosoftInternetExplorer4 El interrogante del que este artículo pretende dar cuenta es si el individualismo de John Locke responde a la radicalidad con la que la corriente de interpretación más difundida intenta caracterizarlo. La conclusión que se alcanza luego de una amplia presentación de pruebas textuales, es que la necesaria matización del individualismo se deriva de la insistencia del autor en justificar el origen divino de los derechos y deberes. De este modo, en la medida (...) en que se niegue que los hombres disponen de un derecho irrefrenable a seguir su deseo de autopreservación, es posible concluir que el Estado no existe para resguardar esos presuntos derechos individuales, sino para restaurar la ley de naturaleza que ya no sirve, como debería, para determinar los derechos y deberes de los hombres. (shrink)

Research on the neurobiology and psychosocial features of Major Depressive Disorder has the ability to extend our understanding of affiliative behavior. In depression, decreased hedonic capacity and hypoactivity in dopaminergic and prefrontal circuitries may decrease the ability to experience affiliative relationships as rewarding. We suggest that neurobiological research on depression can provide a test case for theoretical models of affiliation.

By emphasizing nonlinear dynamics between appraisal and emotions, Lewis's model provides a valuable platform for integrating psychological and neural perspectives on the emotion-cognition interface. In this commentary, I discuss the role of neuroscience in shaping new conceptualizations of emotion and the putative role of theta oscillation within frontocingulate pathways in depression, a syndrome in which emotion-cognition relations are dysfunctional.

The Art of Power offers up a challenge to traditional political theory. Diego A. von Vacano provides original interpretations of Machiavelli's oeuvre and of Nietzsche's relationship to politics.

We show that certain type of tree forcings, including Sacks forcing, increases the covering of the strong measure zero ideal \. As a consequence, in Sacks model, such covering number is equal to the size of the continuum, which indicates that this covering number is consistently larger than any other classical cardinal invariant of the continuum. Even more, Sacks forcing can be used to force that \<\mathrm {cov}<\mathrm {cof}\), which is the first consistency result where more than two cardinal invariants (...) associated with \ are pairwise different. Another consequence is that \ in ZFC where \ denotes Marczewski’s ideal. (shrink)

Este trabajo cuestiona el supuesto carácter intuitivo o natural del escepticismo acerca del mundo externo. En §1 examinamos una versión del argumento escéptico que se sostiene a partir de dos principios: clausura del conocimiento e indiferencia. Para profundizar la postura que ha defendido Michael Williams, en §2 ofrecemos un examen novedoso de la argumentación escéptica cartesiana que nos permite establecer que en dos argumentos de esta estrategia argumentativa resulta claro que la presunta naturalidad que el escéptico reclama es falsa y (...) que, antes bien, para lograr su conclusión, necesita asumir compromisos con el realismo epistémico, es decir, con la tesis de que nuestras creencias se ubican al interior de una jerarquía epistemológica de acuerdo únicamente con su contenido y en abstracto. Finalmente, basados en argumentos de inspiración wittgensteiniana, en §3 mostramos cómo es que, en contra del realismo epistémico, cada creencia desempeña un papel justificativo según el contexto pertinente. (shrink)

While prior ecolabel research suggests that consumers’ trust of ecolabel sponsors is associated with their purchase of ecolabeled products, we know little about how third-party certification might relate to consumer purchases when trust varies. Drawing on cognitive theory and a stratified random sample of more than 1200 consumers, we assess how third-party certification relates to consumers’ use of ecolabels across different program sponsors. We find that consumers’ trust of government and environmental NGOs to provide credible environmental information encourages consumers’ use (...) of ecolabels sponsored by these entities, and consumers do not differentiate between certified versus uncertified ecolabels in the presence of trust. By contrast, consumers’ distrust of private business to provide credible environmental information discourages their use of business association-sponsored ecolabels. However, these ecolabels may be able to overcome consumer distrust if their sponsors certify the ecolabels using third-party auditors. These findings are important to sponsors who wish develop ecolabels that are more credible to consumers, and thus encourage more widespread ecolabel use. (shrink)

We introduce the property “F-linked” of subsets of posets for a given free filter F on the natural numbers, and define the properties “μ-F-linked” and “θ-F-Knaster” for posets in a natural way. We show that θ-F-Knaster posets preserve strong types of unbounded families and of maximal almost disjoint families. Concerning iterations of such posets, we develop a general technique to construct θ-Fr-Knaster posets (where Fr is the Frechet ideal) via matrix iterations of <θ-ultrafilter-linked posets (restricted to some level of the (...) matrix). This is applied to prove consistency results about Cichoń's diagram (without using large cardinals) and to prove the consistency of the fact that, for each Yorioka ideal, the four cardinal invariants associated with it are pairwise different. At the end, we show that three strongly compact cardinals are enough to force that Cichoń's diagram can be separated into 10 different values. (shrink)

Graphical AbstractThe recent explosion in the number of predatory journals has led to the appearance of questionable websites providing fake or spurious impact factors, which are analyzed and discussed here. We believe that academic associations, universities, and research funding bodies must take action to stop these questionable practices.

We propose communication pattern logic. A communication pattern describes how processes or agents inform each other, independently of the information content. The full-information protocol in distributed computing is the special case wherein all agents inform each other. We study this protocol in distributed computing models where communication might fail: an agent is certain about the messages it receives, but it may be uncertain about the messages other agents have received. In a dynamic epistemic logic with distributed knowledge and with modalities (...) for communication patterns, the latter are interpreted by updating Kripke models. We propose an axiomatization of communication pattern logic, and we show that collective bisimilarity (comparing models on their distributed knowledge) is preserved when updating models with communication patterns. We can also interpret communication patterns by updating simplicial complexes, a well-known topological framework for distributed computing. We show that the different semantics correspond, and propose collective bisimulation between simplicial complexes. (shrink)

Research on emotion and emotion regulation is expected to improve our understanding of psychopathology. However, achieving this understanding requires overcoming several obstacles, including the paucity of objective markers of specific emotions or psychiatric diagnoses, and the fact that emotion regulation is a concept that can be difficult to operationalize. We review affective neuroscience research that has addressed these issues by focusing on psychological and neural mechanisms implicated in approach and avoidance behaviors, as revealed by studies of fear, anxiety, and reward (...) processing. Dysfunction in these mechanisms may serve as risk markers for psychopathology, while emotion regulation research demonstrates that some of them are susceptible to volitional control. The conclusion acknowledges limitations of affective neuroscience and highlights goals for future work. (shrink)

Proponemos una lectura de la obra de Hobbes como revolución, como ruptura radical con el pensamiento de la tradición dominante: ruptura, que lo es en casi todos los ámbitos, pero sobre todo en el del pensamiento político, moral y jurídico. Sugerimos, además, que esa radical ruptura sigue manteniendo elementos vivos y útiles para pensar la política hoy.

We investigate the behavior of cardinal characteristics of the reals under extensions that do not add new [Formula: see text]-sequences (for some regular [Formula: see text]). As an application, we show that consistently the following cardinal characteristics can be different: The (“independent”) characteristics in Cichoń’s diagram, plus [Formula: see text]. (So we get thirteen different values, including [Formula: see text] and continuum). We also give constructions to alternatively separate other MA-numbers (instead of [Formula: see text]), namely: MA for [Formula: see (...) text]-Knaster from MA for [Formula: see text]-Knaster; and MA for the union of all [Formula: see text]-Knaster forcings from MA for precaliber. (shrink)

We investigate the behavior of cardinal characteristics of the reals under extensions that do not add new <κ-sequences. As an application, we show that consistently the followi...

The aim of this study was to analyze the association between physical activity and eating habits during the COVID-19 pandemic among Brazilian adults. A sample of 1,929 participants answered an online survey, however 1,874 were included in the analysis. The impact of the COVID-19 pandemic on eating habits was assessed inquiring about participants' intake of fruits, vegetables, fried foods, and sweets during the pandemic. Physical activity was assessed by asking participants about their weekly frequency, intensity and number of minutes/hours engaging (...) in structured physical activities per week. Participants were then stratified into categories based on moderate-to-vigorous intensity and into active or inactive. Increased sweets consumption was the most commonly reported change to eating habits, followed by an increase in the consumption of vegetables, fruits, and fried foods. Physical activity practice was related to lower consumption of fried foods and sweets. A cluster analysis revealed subjects with higher the level of physical activity was more likely to follow a healthy diet. Thus, physical activity was positively associated with healthier eating habits. Health authorities must recommend regular physical as a strategy to improve overall health during the COVID-19 pandemic. Future studies should address the physical activity interventions to improve health status during a pandemic. (shrink)

Metacognition refers to any knowledge or cognitive process that monitors or controls cognition. We highlight similarities between metacognitive and executive control functions, and ask how these processes might be implemented in the human brain. A review of brain imaging studies reveals a circuitry of attentional networks involved in these control processes, with its source located in midfrontal areas. These areas are active during conflict resolution, error correction, and emotional regulation. A developmental approach to the organization of the anatomy involved in (...) executive control provides an added perspective on how these mechanisms are influenced by maturation and learning, and how they relate to metacognitive activity. (shrink)

For the epic journey of autumn migration, long-distance migratory birds use innate and learned information and follow strict schedules imposed by genetic and epigenetic mechanisms, the details of which remain largely unknown. In addition, bird migration requires integrated action of different multisensory systems for learning and memory, and the hippocampus appears to be the integration center for this task. In previous studies we found that contrasting long-distance migratory flights differentially affected the morphological complexity of two types of hippocampus astrocytes. Recently, (...) a significant association was found between the latitude of the reproductive site and the size of the ADCYAP1 allele in long distance migratory birds. We tested for correlations between astrocyte morphological complexity, migratory distances, and size of the ADCYAP1 allele in three long-distance migrant species of shorebird and one non-migrant. Significant differences among species were found in the number and morphological complexity of the astrocytes, as well as in the size of the microsatellites of the ADCYAP1 gene. We found significant associations between the size of the ADCYAP1 microsatellites, the migratory distances, and the degree of morphological complexity of the astrocytes. We suggest that associations between astrocyte number and morphological complexity, ADCYAP1 microsatellite size, and migratory behavior may be part of the adaptive response to the migratory process of shorebirds. (shrink)

BackgroundThe outbreak of novel coronavirus disease 2019 has caused a global panic and public concern due to its mortality ratio and lack of treatments/vaccines. Reduced levels of physical activity have been reported during the outbreak, affecting the normal daily pattern.ObjectiveTo investigate the relationship of physical activity level with sleep quality and the effects of reduction physical activity levels on sleep quality.MethodsA Google form was used to address personal information, COVID-19 personal care, physical activity, and mental health of 1,907 adult volunteers. (...) Binary logistic regression was used to verify the association of physical activity parameters and sleep quality.ResultsInsufficient physical activity levels were a risk factor to have disturbed sleep pattern [OR: 1.28, 95% CI ]; however, when the BMI was added to the analysis, there was no more statistical difference [OR: 1.23, 95% CI ]. On the other hand, we found that the reduction of physical activity levels was associated with negative changes in sleep quality [OR: 1.73, 95% CI ], regardless all the confounders [OR: 1.30, 95% CI ], unless when feeling of depression was added in Model 6 [OR: 1.28, 95% CI ].ConclusionDisruption in daily physical activity routine, rather than physical activity level, negatively influences sleep quality during the COVID-19 quarantine. (shrink)

In this essay, I consider an evolutionary debunking argument (EDA) that purports to undermine the epistemic justification of the belief in the reliability of our belief-forming processes, and an evolutionary vindicating argument (EVA) that seeks to establish that such a belief is epistemically justified. Whereas the EDA in question seems to fall prey to crippling self-defeat, the EVA under consideration seems to fall prey to vicious circularity. My interest in those arguments and the problems they face lies in what they (...) might tell us about the possibly aporetic nature of reason. For, if we take the EDA and the EVA in question to consist of true or plausible premises and valid inferences at which we arrive through a meticulous use of reason, then their falling victim to either crippling self-defeat or vicious circularity might be regarded as a sign that, when we push rational reflection on the reliability, or lack thereof, of our belief-forming capacities to the limit, we end up in a situation of aporia from which there seems to be no escape. (shrink)

This study aimed to synthesize literature data on male judo combat time in international competitions between 2010 and 2019. The search was carried out from May 8th to June 11th, 2021, in electronic databases using the following keywords: AND. After the selection process, 8 articles were included in the systematic review and 7 in the meta-analysis. These studies analyzed 2,562 international male judo combats over the years 2010 to 2019. We observed that the average male judo combat time changed after (...) each rule change. There was a significant difference between combats that ended up to the regular time and those that needed overtime. There were differences between 60kg and +100kg categories and the others in 2011-2012. However, no significant difference was found between the combat time by weight division after the 2017 rule changes, although there are still differences in relation to the end of the combats. There were significant changes in the male judo combat time with each rule change, and the data from the included studies point to a trend of homogeneity in the combat time spent between the weight divisions over the years, and an increase in the occurrence of Golden Score. More studies need to be carried out to identify the new temporal behaviors of athletes. (shrink)

Zonulin is a physiological modulator of intercellular tight junctions, which upregulation is involved in several diseases like celiac disease (CeD). The polyQ gliadin fragment binds to the CXCR3 chemokine receptor that activates zonulin upregulation, leading to increased intestinal permeability in humans. Here, we report a general hypothesis based on the structural connection between the polyQ sequence of the immunogenic CeD protein, gliadin, and enteric coccidian parasites proteins. Firstly, a novel interaction pathway between the parasites and the host is described based (...) on the structural similarities between polyQ gliadin fragments and the parasite proteins. Secondly, a potential connection between coccidial infections as a novel environmental trigger of CeD is hypothesized. Therefore, this report represents a promising breakthrough for coccidian research and points out the potential role of coccidian parasites as a novel trigger of CeD that might define a preventive strategy for gluten‐related disorders in general. Also see the video abstract here: https://youtu.be/oMaQasStcFI. (shrink)

El concepto de trastorno mental permite justificar intervenciones médicas, psicológicas y judiciales. Además, facilita a la/el consultante acceder a tratamientos mediante reembolsos o programas de salud pública, y por otro lado, podría conllevar estereotipos sociales. No obstante, el significado de dicho concepto no ha dejado de suscitar debate. En el presente artículo argumentaré que los trastornos de personalidad, tal como son definidos en el DSM-5, no cumplen con los criterios de patología de las propuestas principales (i.e. teoría bio-estadística de la (...) salud, disfunción dañina, o entidad patológica) debido a tres razones independientes: (i) no se han propuesto dis/funciones a la base de cada trastorno y, dado el estado del arte de la psicología evolucionista, es poco probable que se pueda llevar a cabo ese programa en el futuro; (ii) el concepto de daño (distrés, perjuicio) aplicable a los trastornos de personalidad es constitutivamente social (aunque no exclusivamente social), por lo que resulta más adecuado hablar de grados de discapacidad que de trastornos del individuo; y (iii) que la ausencia de condiciones patognomónicas para cada trastorno, junto a la elevada comorbilidad y multimorbilidad entre trastornos de personalidad, horada la validez de la nosología actual y de los diagnósticos diferenciales. Propondré como solución la eliminación de los trastornos de personalidad de la nosología psiquiátrica. Eliminar los trastornos de personalidad no equivale a desconocer el sufrimiento de las personas diagnosticadas, ni a ignorar que dicho sufrimiento precede a, –y no acaba con la disolución de– la etiqueta diagnóstica. Por ello, se propondrá una reconceptualización de dicho sufrimiento en términos de discapacidad, entendida desde el modelo social, y que no presupone patología. (shrink)

cal basis of consciousness. We continue by discussing the relation between spatiotem- One of the outstanding problems in the cog- poral patterns of brain activity and con- nitive sciences is to understand how ongo- sciousness, with particular attention to pro- ing conscious experience is related to the cesses in the gamma frequency band. We workings of the brain and nervous system. then adopt a critical perspective and high-.

O presente artigo busca, a partir da filosofia de Michel de Montaigne, explicitar quais lições podemos aprender sobre o contexto de epidemia em que vivemos. Mas, afinal, aqui fica a pergunta fundamental deste texto: o que podemos aprender com um filósofo francês do século XVI, Michel de Montaigne, sobre esse momento tão devastador que estamos vivendo? É claro que Montaigne não nos dirá nada sobre a natureza do vírus, nem sobre nosso sistema imunológico, muito menos sobre metodologias de investigação científicas (...) para a procura de medicamentos para o tratamento da doença. O que Montaigne nos pode ensinar é algo de outra ordem, não da biológica, mas, da subjetiva. É uma (nova) disposição de nosso espírito que podemos aprender a desenvolver com o filósofo. (shrink)