Why do humpback whales sing? This paper considers the hypothesis that humpback whales may use song for long range sonar. Given the vocal and social behavior of humpback whales, in several cases it is not apparent how they monitor the movements of distant whales or prey concentrations. Unless distant animals produce sounds, humpback whales are unlikely to be aware of their presence or actions. Some field observations are strongly suggestive of the use of song as sonar. Humpback whales sometimes stop (...) singing and then rapidly approach distant whales in cases where sound production by those whales is not apparent, and singers sometimes alternately sing and swim while attempting to intercept another whale that is swimming evasively. In the evolutionary development of modern cetaceans, perceptual mechanisms have shifted from reliance on visual scanning to the active generation and monitoring of echoes. It is hypothesized that as the size and distance of relevant events increased, humpback whales developed adaptive specializations for long-distance echolocation. Differences between use of songs by humpback whales and use of sonar by other echolocating species are discussed, as are similarities between bat echolocation and singing by humpback whales. Singing humpback whales are known to emit sounds intense enough to generate echoes at long ranges, and to flexibly control the timing and qualities of produced sounds. The major problem for the hypothesis is the lack of recordings of echoes from other whales arriving at singers immediately before they initiate actions related to those whales. An earlier model of echoic processing by singing humpback whales is here revised to incorporate recent discoveries. According to the revised model, both direct echoes from targets and modulations in song-generated reverberation can provide singers with information that can help them make decisions about future actions related to mating, traveling, and foraging. The model identifies acoustic and structural features produced by singing humpback whales that may facilitate a singer’s ability to interpret changes in echoic scenes and suggests that interactive signal coordination by singing whales may help them to avoid mutual interference. Specific, testable predictions of the model are presented. (shrink)

We agree with Rendell and Whitehead that cetaceans acquire knowledge from caretakers and peers, and that a clear understanding of this process can provide insight into the evolution of mammalian cognition. The passive observational methods they advocate, however, are inadequate for determining what cetaceans know. Only by experimentally investigating the cognition of cetaceans can we hope to understand what they learn through social interactions.

The theoretical framework proposed by Dienes & Perner sets the wrong standards for knowledge to be considered explicit. Animals other than humans possess knowledge, too, some of which is probably explicit. We argue that a comparative approach to investigating knowledge is likely to be more fruitful than one based on linguistic constructs and unobservable phenomena.

Singing humpback whales (Megaptera noavaengliae) collectively and progressively change the sounds and patterns they produce within their songs throughout their lives. The dynamic modifications that humpback whales make to their songs are often cited as an impressive example of cultural transmission through vocal learning in a non-human. Some elements of song change challenge this interpretation, however, including: (1) singers often incrementally and progressively morph phrases within and across songs as time passes, with trajectories of change being comparable across multiple time (...) scales; (2) acoustically isolated subpopulations singing similar songs morph the acoustic properties of songs in similar ways; and (3) complex sound patterns, including phrases, themes, and whole songs, recur across years and populations. These properties of song dynamics suggest that singing humpback whales may be modulating song features in response to local conditions and genetic predispositions rather than socially learning novel sound patterns by copying other singers. Experimental and observational tests of key predictions of these alternative hypotheses are critical to identifying how and why singing humpback whales constantly change their songs. (shrink)

People faced with the prospect of being in the spotlight often feel apprehensive, even when being in the spotlight garners positive attention from others. Performance anxiety has been studied most...

El documento presenta la propuesta ecuatoriana como una política pública viable tanto desde el punto de vista nacional como internacional. Se analizan las razones de por qué no debe atarse esta iniciativa al mercado de carbono, y se proponen premisas para impulsar acuerdos políticos que tendrán como momento clave la reunión del Convenio de Cambio Climático en Copenhague. En el documento se proponen varias posibilidades y condiciones políticas y económicas para estructurar un fondo solidario a fin de hacer viable (...) la iniciativa de no explotación del crudo en el Parque Nacional Yasuní. Se destaca que la propuesta ha recibido ya el respaldo del Parlamente Alemán, y que está en la agenda de varios parlamentos y gobiernos a nivel internacional. (shrink)

La expansión de las actividades informales de feriantes en el conurbano bonaerense constituye una de las manifestaciones del fenómeno de la heterogeneidad no regulada del aprovisionamiento de bienes de consumo, que a su vez, emergen como intermediarios económicos que atienden a necesidades y demandas de consumidores territorialmente segregados y no articulados a los mercados formales, en su mayoría.Es en ese sentido que el presente artículo quiere rescatar y señalar los componentes centrales que asoman en un proceso que parte con el (...) supuesto de que la confianza constituye un elemento central cuando otras formas que actuarían como garante de las interacciones aparecen débiles, ausentes o no primordiales como garantía de las interacciones sociales, como es el caso de la feria de Solano. (shrink)

Las expectativas de reconocimiento que tienen los migrantes puede entenderse en desde la noción de falso reconocimiento, en que el sujeto se identifica con la posición desfavorable que le impone la sociedad receptora. Las expectativas de los migrantes están mediadas por la percepción de que se contrae una deuda con la sociedad en virtud de que esta le ha entregado un espacio de oportunidades para la realización de un proyecto de vida orientado al bienestar y la seguridad. Lo cual redunda (...) en una concepción del acceso a los derechos restringida y centrada en el acceso al mercado de trabajo y de bienes de consumo. En este marco las principales estrategias de incorporación identificadas son el ocultamiento, la adaptación, la distinción al interior de los colectivos, el fortalecimiento de las redes y la priorización del trabajo. (shrink)

El último año un número significativo de países desarrollados y del tercer mundo iniciaron procesos de transformación social y política a partir de levantamientos, revoluciones y movimientos impulsados por una ciudadanía hasta ahora distanciada e incluso segregada de la esfera política. En algunos países el imperio del mercado, en otros la fuerza represiva de regímenes autoritarios, en los más privilegiados, un nihilismo extendido producto del bienestar material acumulado, venía desde hace añ..

O artigo apresenta apontamentos sobre “marketing de guerra santa ” , o planejamento estratégico de gerenciamento de mercado religioso aplicado por algumas das igrejas cristãs da contemporaneidade. Vale-se de reflexões a partir de observação participante e de consulta a bibliografia especializada. Apontam-se algumas das formas com as quais essas igrejas se midiatizam e se inserem num contexto de espetacularização e mercadorização próprios da sociedade do tempo presente e imediato. O mercado religioso no qual se inserem as agências que (...) praticam este tipo de marketing passa por contextos de adequação ao capital simbólico e ao arcabouço cultural dos fiéis, sendo possível identificar o investimento ideológico e econômico na fabricação e veiculação de suas estratégias, discursos e mercadorias. O objetivo é o de perceber algumas das maneiras com as quais firmas religiosas (tomando como maior exemplo as igrejas neopentecostais) veiculam as mercadorias que produzem ou se apropriam, e os discursos que reverberam, relacionando-os a uma cultura de massa e a uma sociedade espetacular; fomentando a discussão sobre como tais igrejas e outros segmentos religiosos aplicam o marketing de guerra santa para melhor posicionarem sua marca no mercado e conquistarem mais fiéis. Palavras-chave : Marketing de guerra santa. Neopentecostalismo. Mídia. Mercado. Espetáculo da fé.This article presents some notes on Jesus´ marketing, strategic planning of management of religious market applied by some of contemporary Christian churches. For this purpose, the reflections from participant observation and literature on the subject are validated. Some of the ways these churches mediate themselves and are part of a context of spectacle and commoditization are also pointed out. The religious market has adequate to the symbolic capital and to the cultural framework of the participants of the churches. Because of that it is possible to identify the ideological and economic investment in the manufacturing and delivery of their strategies, discourses and products. This article aims to highlight some of the ways in which neo-Pentecostal churches convey the goods they produce and the speeches that reflect them, relating them to a mass culture and a society of the spectacle. Finally, the article wants to encourage the debate on the ways these churches apply the marketing of Jesus in order to co-opt their members and flatten their units Keywords : Holy War’s marketing. Neopentecostalism. Media. Market. Show of faith. (shrink)

A transição do trabalhador da Idade Média para a Moderna forçou os meios de produção burgueses a criarem modos de positivar a cultura do trabalho. Para além das ideologias e da própria miséria como impulsionadores da cultura do trabalho, o que pretendemos neste artigo é jogar luz sobre o papel das previdências como instrumentos de subjetivação e normalização, originalmente disciplinares; utilizando então uma leitura foucaultiana do tema. Partiremos do como as técnicas disciplinares ajustaram os corpos trabalhadores para o trabalho e (...) fixaram-nos com o auxílio das caixas previdenciárias, até chegarmos à compreensão atual das reformas e contrarreformas previdenciárias como resultados disto que tem sido reconhecido hoje como uma necropolítica. A atualidade, não mais apenas dos trabalhadores europeus, vista então como algo que em nome de uma biopolítica se converteu nesta ultradefesa da vida. Uma defesa que, no seu limite, justificaria até mesmo a morte de larga parcela da população. Temos então a passagem da biopolítica para a necropolítica. E na mesma ordem, temos a passagem de um sistema previdenciário que não é mais feito para o auxílio ou a fixação do trabalhador, mas para a gestão do uso e do descarte deste mesmo sujeito frente ao mercado de trabalho. (shrink)

El presente artículo indaga si ¿es el sujeto un ser autónomo en la deliberación política o sonlos pensamientos, las posturas y las formas de la organización política mediadas por las distintas herramientas comunicacionales a las que se ve expuesto quienes lo determinan? Así, analiza larelación que existe entre mass media y política, con la capacidad deliberativa del individuo altomar decisiones en el contexto político, a partir de Chomsky y Han. La metodología es cualitativa con diseño documental, el instrumento son fichas (...) bibliográficas aplicadas a fuentes primarias y secundarias. Se usan bases de datos con el algoritmo: “Neoliberalismo, psicopolítica, big data, medios de comunicación de masas y democracia”. Se analizan 13 libros y 20 artículos. Se identifican las nuevas formas y herramientas de organización política y la relación entre política y medios de comunicación. Se concluye que: 1) el neoliberalismo direcciona la idea de libre mercado hacia el individuo mismo, 2) es necesaria una ciudadanía crítica que tenga un rol más activo en lademocracia, 3) se identifica a la psicopolítica como una nueva forma de organización política, 4) lanueva herramienta de la política es el big data, 5) se evidencia que la relación entre política y massmedia está vinculada con los grupos de poder y 6) la emocionalización de la comunicación políticadisminuye la autonomía individual. (shrink)

O livro visa apresentar o tema sob inovadoras formas - linguagem (textos científicos, literários, filosóficos e depoimentos), identidade visual (diálogo com as artes visuais), e a participação de renomados estudiosos em direitos humanos do Brasil e do exterior com formação em antropologia, direito, educação, filosofia, história, serviço social e sociologia. Os temas que constituem o livro são - sistema prisional no Brasil, exploração sexual de adolescentes, maternidade e prisão, Sistema Único de Saúde, direitos da criança e do adolescente, tráfico de (...) mulheres, migração internacional, população em situação de rua, dignidade, humanização, sustentabilidade, acesso à Justiça, liberalismo, mulheres na economia solidária, desigualdades raciais na educação e no mercado de trabalho, quilombos, racismo, desigualdade, diversidade, ética em direitos humanos, políticas públicas para travestis e transexuais, e defensores de direitos humanos. (shrink)

Jane Austen normally avoids discussing appearance throughout her works. Persuasion constitutes the exception to the rule, as the story focuses on the premature aging experienced by her protagonist, Anne Elliot, seemingly due to disappointed love. Much has been written about Anne’s “loss of bloom,” but never from the perspective of psychoneuroimmunology, the field that researches the interrelation between psychological processes and the nervous and immune systems. In this paper, we adopt a perspective of psychoneuroimmunology to argue that Austen established a (...) connection between psychological distress, specifically lovesickness, and the development of early senescence signs, and vice versa, since the recovery of love is associated with happiness and physical glow. From a gender perspective, we discuss how Austen brightly reflected these interrelationships through the story of Anne, when the latest psychoneuroimmunological research has actually shown that women age earlier than men as a consequence of psychological turmoil. (shrink)

ABSTRACTEmotion regulation substantially develops during the childhood years. This growth includes an increasing awareness that certain ER strategies are more appropriate in some contexts than...

El artículo busca revelar como resultado el papel de la comunicación de la innovación social en el comportamiento del usuario, si este modifica su intención de consumir un producto o servicio, cuando conoce que la empresa que oferta el bien o servicio tiene una práctica de innovación social implementada. Para responder al objetivo se formularon dos hipótesis que fueron testeadas mediante la aplicación de una encuesta basada en una muestra de conveniencia, que recolectó 300 respuestas en toda América Latina. Los (...) resultados obtenidos permiten suponer que el consumidor en Latinoamérica, en general, no solo quiere tener más información disponible y accesible (tanto en términos de accesibilidad de medios como de lenguaje), sino que quiere involucrarse, ser escuchado y poder intervenir en la comunidad; ya sea por iniciativa propia o alentado por las marcas y empresas en general. (shrink)

En el presente trabajo se analizan tres piezas de Rodolfo Usigli bajo la perspectiva del chantaje que impulsa la confrontación de dos fuerzas axiológicas que son la verdad y la mentira; sin embargo, no se trata sólo de dos antagonismos que determinan la temática de su teatro, sino además son dos términos cuya confrontación construye la estructura de la mayor parte de sus dramas. Esta confrontación entre verdad y mentira Rodolfo Usigli la maneja desde distintas aristas, como es la desinformación, (...) la obediencia a la autoridad y la gubernamentalidad. (shrink)

Los documentos del Concilio Vaticano II tienen profundas consecuencias sociales para la misión evangelizadora de la Iglesia. En el posconcilio, la revista Vida Nueva, especializada en la información social y religiosa, acoge el mensaje conciliar e intenta aplicarlo a las circunstancias de la Iglesia y sociedad de aquel momento. Este estudio analiza los contenidos de los editoriales publicados por Vida Nueva de 1968 a 1975. Los resultados muestran la repercusión del Concilio en el enfoque editorial de una revista que, comprometida (...) con el orden temporal, analiza la actualidad política; fomenta el ejercicio de las libertades; defiende los derechos humanos; presta una atención preferencial a las personas más vulnerables; promueve la libertad y veracidad informativa; apuesta por una actividad económica puesta al servicio de los ciudadanos; aborda temas relativos a la moral de la persona discutidos en el seno de la Iglesia; mantiene una postura dialogante con la cultura, la ciencia y la tecnología; y propone cambios en los derechos, metodología y contenidos del sector educativo. (shrink)

Eduardo Arroyo, Armelle Auris, François Boissonnet, Paul HENRY, Pierre-Jean LABARRIERE, MATIEU, Gilles AILLAUD, Gérad THALMANN, Nicole MATHIEU, Jacques VIMARD, Michel QUAREZ, Leonardo CREMONINI, L'atelier d'Eduardo Arryo: Le carré blanc du ring, Rue Descartes, No. 7, Logiques de l'éthique (Juin 1993), pp. 149-168.

The COVID-19 outbreak has ravaged all societal domains, including education. Home confinement, school closures, and distance learning impacted students, teachers, and parents’ lives worldwide. In this study, we aimed to examine the impact of COVID-19-related restrictions on Italian and Portuguese students’ academic motivation as well as investigate the possible buffering role of extracurricular activities. Following a retrospective pretest–posttest design, 567 parents reported on their children’s academic motivation and participation in extracurricular activities. We used a multi-group latent change score model to (...) compare Italian and Portuguese students’: pre-COVID mean motivation scores; rate of change in motivation; individual variation in the rate of change in motivation; and dependence of the rate of change on initial motivation scores. Estimates of latent change score models showed a decrease in students’ motivation both in Italy and in Portugal, although more pronounced in Italian students. Results also indicated that the decrease in students’ participation in extracurricular activities was associated with changes in academic motivation. Furthermore, students’ age was significantly associated with changes in motivation. No significant associations were found for students’ gender nor for parents’ education. This study provides an important contribution to the study of students’ academic motivation during home confinement, school closures, and distance learning as restrictive measures adopted to contain a worldwide health emergency. We contend that teachers need to adopt motivation-enhancing practices as means to prevent the decline in academic motivation during exceptional situations. (shrink)

Early in animal development, gradients of secreted morphogenic molecules, such as Sonic hedgehog (Shh), Wnt and TGFβ/Bmp family members, regulate cell proliferation and determine the fate and phenotype of the target cells by activating well‐characterized signalling pathways, which ultimately control gene transcription. Shh, Wnt and TGFβ/Bmp signalling also play an important and evolutionary conserved role in neural circuit assembly. They regulate neuronal polarization, axon and dendrite development and synaptogenesis, processes that require rapid and local changes in cytoskeletal organization and plasma (...) membrane components. A key question then is whether morphogen signalling at the growth cone uses similar mechanisms and intracellular pathway components to those described for morphogen‐mediated cell specification. This review discusses recent advances towards the understanding of this problem, showing how Shh, Wnt and TGFβ/Bmp have adapted their ‘classical’ signalling pathways or adopted alternative and novel molecular mechanisms to influence different aspects of neuronal circuit formation. (shrink)

The relationship between phenomenology and the sciences is of complex nature. In particular, the transcendental phenomenological position seems to promote skeptical reservations about the scientific attitude. Phenomenological anthropology and psychology, however, are an exception. The work of the Spanish philosopher Javier San Martin addresses the relationship of Husserlian phenomenology to these two particular sciences. In this paper, the work of Navarrese will be revisited as an occasion to reflect on the relationship between phenomenology and the sciences. In the first part, (...) San Martin’s philosophical approach is presented and put in relation to its counterpart, namely ratiovitalism, which has dominated phenomenological research in the Spanish-speaking world throughout the last decades. The second part is devoted to the question of whether phenomenological transcendentalism is compatible with anthropological research. It also describes San Martin’s contribution to cultural philosophy. The relationship between phenomenology and psychology is discussed in the third part. San Martin develops a critical account of empiricist psychology which he confronts with his proposal for a ’posttranscendental’ psychology that is based on the critique of psychologism and representationalism. The last section compares San Martin’s idea of anthropological and psychological science with other forms of scientific theory which contribute to phenomenological methodology in empirical research. (shrink)

Dynamic Theodicy (DT) is a broad concept we bring up to designate some modern Philosophical Theology attempts to reconcile the necessary and perfect existence of God with the contingent characteristics of human life. In this paper we analyze such approaches and discuss how they have become incomprehensible because the metaphysical assumptions implicit in these explanations have lost their intrinsic relation to the natural human desire for salvation. In the first part we show Charles Hartshorne's DT-model, arising from the modal logic (...) of perfection, and the modern rational problems of this position in making infinite-necessary Being (God) and finite-contingent being (human) compatible. We note that at the heart of the contradictions in this DT account is a dialectical mode of thinking that makes it difficult to find a correct solution to this dichotomy, and to assume a human desire that could be considered related to lifelong goals. In the second part, supported by the proposal of Hans Urs von Balthasar's DT, we develop the concepts of bodily vulnerability, corporeal intentionality, and natural desire for salvation, which come from an Aristotelian-Thomistic thought. This theory is established in order to build an argument, following Alasdair MacIntyre’s ethical framework, on how to make possible the recovery of a metaphysical and anthropological desire that transcends natural aging and goes beyond death. We conclude that both human dependence and the virtues that arise naturally when human beings decide to seek the good of their transcendent condition, make it possible to recover the natural desire for salvation through divine and human love. (shrink)

Understanding the causes of maize landrace loss in farmers’ field is essential to design effective conservation strategies. These strategies are necessary to ensure that genetic resources are available in the future. Previous studies have shown that this loss is caused by multiple factors. In this longitudinal study, we used a collection of 93 maize landrace accessions from Morelos, Mexico, and stored at the International Maize and Wheat Improvement Center Maize Germplasm Bank, to trace back to the original 66 donor families (...) after 50 years and explore the causes for why they abandoned or conserved their seed lots. We used an actor-centered approach, based on interviews and focus group discussions. We adopt a Multi-Level Perspective framework to examine loss as a process, accommodating multiple causes and the interactions among them. We found that the importance of maize landrace cultivation had diminished over the last 50 years in the study area. By 2017, 13 families had conserved a total of 14 seed lots directly descended from the 1967 collection. Focus group participants identified 60 accessions that could still be found in the surrounding municipalities. Our findings showed that multiple interconnected changes in maize cultivation technologies, as well as in maize markets, other crop markets, agricultural and land policies, cultural preferences, urbanization and climate change, have created an unfavorable environment for the conservation of maize landraces. Many of these processes were location- and landrace-specific, and often led to landrace abandonment during the shift from one farmer generation to the next. (shrink)

In this study we examined whether parents’ perceptions of students’ anxiety as well as perceived support from both teachers and classmates were predictive of changes in students’ academic motivation during the first wave of COVID-19. To this end, we used a retrospective pretest-posttest design together with a latent change score model to analyze our data. From April to May of 2020, 394 Portuguese parents of students in grades 1–9 participated in this study. Our results showed that students’ anxiety and teachers’ (...) social support, as perceived by parents, were highly significant predictors of academic motivation changes. Specifically, we found a negative effect of anxiety and a positive effect of teachers’ social support on students’ academic motivation. Our results did not show, however, a significant predictive role of classmates’ social support. This study provides an important contribution to further understand the intrapersonal and interpersonal factors that are associated with the decline of students’ academic motivation during the COVID-19 pandemic. The pivotal role of teachers in sustaining students’ academic motivation and other relevant educational implications for the ongoing pandemic are discussed. (shrink)

Although inclusion in formal value chains extends the prospect of improving the livelihoods of rural small-scale producers, such a step is often contingent on compliance with internationally-promoted food safety standards. Limited research has addressed the challenges this represents for small rural producers who, grounded in culturally-embedded food safety conceptions, face difficulties in complying. We address this gap here through a multiple case study involving four public school feeding programs that source meals from local rural providers in the Bolivian Altiplan. Institutional (...) logics theory is used to describe public food safety regulations and to compare them to food safety conceptions in the local indigenous Aymara rural setting. We identify a value-based conflict that leads to non-compliance of formal food safety rules that jeopardizes the participation of small farmers in the market. These include: partial adoption of formal rules; selective adoption of convenient rules; and ceremonial adoption to avoid compliance. Decoupling strategies allow local actors to largely disregard the formal food safety regulations while accommodating traditional cultural practices and continuing to access the market. However, these practices put the long-term sustainability of the farmers’ participation in potentially favorable opportunities at risk. (shrink)

The Central Dogma of molecular biology, which holds that DNA makes protein and not the other way around, is as influential as it is controversial. Some believe the Dogma has outlived its usefulness, either because it fails to fully capture the ins-and-outs of protein synthesis (Griffiths and Stotz, 2013; Stotz, 2006), because it turns on a confused notion of information (Sarkar, 2004), or because it problematically assumes the unidirectional flow of information from DNA to protein (Gottlieb, 2001). This paper evaluates (...) an underexplored defense of the Dogma, which relies on the assumption that the Dogma and the Inheritance of Acquired Traits, a principle which dates as far back as Jean Baptiste-Lamarck, are incompatible principles (Smith, 1993; Judson, 1979; Dawkins, 1970; Cobb, 2017; Wilkins, 2002; Graur, 2018). By appealing to empirical evidence in molecular science, I argue that this apparent incompatibility is indeed merely apparent. I conclude by briefly demonstrating how these considerations bear on the topic of conceptual pluralism in the philosophy of science (Stencel and Proszewska, 2018; Lu and Bourrat, 2018). (shrink)