I. INTRODUCTIONThe Parshall Flume, which was invented in 1920 by R. Parshall, is mostly used in wastewater and crop supply. Utilizing equations, Parshall established dimensions that fit the design, one of the advantages is the conversion of position energy to velocity energy since in other measurement structures there are minimum energy losses in this one it does not allow sedimentation. The structuring of the project is adhered to by different models that define its behavior and limit its use. This is (...) the case of an approach length of the channel entrance, which is nothing more than a primary distance for the action of the flow within the channel. Throughout history, some studies were conducted in an attempt to establish an approximate and realistic value of the length at the time of measurements, but the theories put forward were lost. Some people link this length with the narrowing of the gorge, and others suggest flow conditions before entering the flume. For the development of the project established with its respective objectives, the respective structuring was carried out: For the measurement, the points already established in the field will be taken with the help of a total station, GPS, to verify the respective measurements of the Parshall flume. For the calculations and the design, the points will be introduced in the civil 3D to be able to verify if the points taken are the correct ones and what distances they have between them, through this, we can apply different methods to be able to verify the design that has this Parshall flume. For the evaluation and layout of the gutter, if it is the case, we will carry out a layout in plan with the data already calculated in the office and we will evaluate the situation in which it is so that we can apply a possible solution so that a defect does not occur. In this report, we focus on the design and redesign of a hydraulic irrigation channel where we find a Parshall section, which has the function of measuring the flow found in that section. The measurements found in the field can be verified in the office using formulas and software to verify if the data are correct, if so we can say that it is well designed, otherwise we will look for a possible solution by doing a field study. (shrink)

Adolescence is the period of growth between childhood and adulthood. This period of development, which goes from 13 to 18 years, is usually presented as critical, due to the profound modifications of physiological and psychological order in this research we worked with a sample of 60 students, from Secondary School No. 8, morning and evening shift. An instrument was made with 45 variables, 5 of them signalytic: age, gender, an average of the previous cycle, performing some extracurricular activity, and shift. (...) The information was processed in the SPSS and STATISTIC programs. The conclusions showed that the student, by showing a need to learn, is able to develop different academic skills through different factors, such as motivation, thus improving their school performance. Thus proposes the development of an intervention model, for training teachers, on motivation methods in the classroom; As well as conferences on the importance of the topic of adolescent motivation and the factors involved in improving academic performance, teachers and parents will be taught and publicity will be developed on the importance of school motivation in adolescents and how it intervenes from home, at school and how this influences academic results. (shrink)

We report on the simultaneous determination of complementary wave and particle aspects of light in a double-slit type “welcher-weg” experiment beyond the limitations set by Bohr’s Principle of Complementarity. Applying classical logic, we verify the presence of sharp interference in the single photon regime, while reliably maintaining the information about the particular pinhole through which each individual photon had passed. This experiment poses interesting questions on the validity of Complementarity in cases where measurements techniques that avoid Heisenberg’s uncertainty principle and (...) quantum entanglement are employed. We further argue that the application of classical concepts of waves and particles as embodied in Complementarity leads to a logical inconsistency in the interpretation of this experiment. (shrink)

In this essay, I address several questions and challenges brought about by the contributors to the special issue on my book Democracy without Shortcuts. In particular, I address some implications of my critique of deep pluralism; distinguish between three senses of ‘blind deference’: political, reflective, and informational; draw a critical parallelism between the populist conception of representation as embodiment and the conception of ‘citizen-representatives’ often ascribed to participants in deliberative minipublics; defend the democratic attractiveness of participatory uses over empowered uses (...) of deliberative minipublics; clarify why accepting public reason constraints does not imply limiting deliberation to questions about constitutional rights, and argue that overcoming a state-centric conception of democracy does not require replacing the ‘all subjected’ principle with the ‘all affected’ principle. (shrink)

In this essay, I address some questions and challenges brought about by the contributors to this special issue on my book ‘Democracy without Shortcuts’. First, I clarify different aspects of my cri...

In this paper I analyze the tension between realism and antirealism at the basis of Kantian constructivism. This tension generates a conflictive account of the source of the validity of social norms. On the one hand, the claim to moral objectivity characteristic of Kantian moral theories makes the validity of norms depend on realist assumptions concerning the existence of shared fundamental interests among all rational human beings. I illustrate this claim through a comparison of the approaches of Rawls, Habermas and (...) Scanlon. On the other hand, however, objections to moral realism motivate many Kantian constructivists to endorse the antirealist claim that reasonable agreement is the source of the validity of social norms. After analyzing the difficulties in the latter strategy, I try to show how a balance between the realist and antirealist elements of Kantian constructivism can be reached by drawing a sharper distinction between the justice and the legitimacy of social norms. (shrink)

In this paper I focus on the discussion between Rawls and Habermas on procedural justice. I use Rawls’s distinction between pure, perfect, and imperfect procedural justice to distinguish three possible readings of discourse ethics. Then I argue, against Habermas’s own recent claims, that only an interpretation of discourse ethics as imperfect procedural justice can make compatible its professed cognitivism with its proceduralism. Thus discourse ethics cannot be understood as a purely procedural account of the notion of justice. Finally I draw (...) the different consequences that follow from this reading. (shrink)

In this essay, I address some questions and challenges brought about by Thomas Christiano in his inspiring review of my book Democracy without Shortcuts. First, I defend the democratic credentials of the conception of self-government that I articulate in the book against conceptions of self-determination that are allegedly compatible with non-democratic government. To do so, I clarify some aspects of the notion of “blind deference” that I use in the book as a contrast concept to identify a minimal, necessary condition (...) for democratic self-government. In a second step, I clarify my criticism of deep pluralist conceptions of democracy and argue that Christiano’s own criticism does not seem to address the main challenge to which pure proceduralism is supposed to provide an answer. Lastly, I address Christiano’s contention that my criticism of lottocracy does not address the worries that lottocrats are responding to. I distinguish between populist and epistocratic worries and argue that both of them have anti-democratic roots and thus should be criticized rather than “responded to” in their own terms. (shrink)

We present five studies investigating the effects of approach and avoidance behaviours when individuals do not enact them but, instead, learn that others have performed them. In Experiment 1, when participants read that a fictitious character (model) had approached a previously unknown product, they ascribed to this model a liking for the object. In contrast, they ascribed to the model a disliking for the avoided product. In Experiment 2, this result emerged, with a smaller effect size, even when it was (...) clear that the behaviours followed specific instructions from a third party. The model had been a mere executor instead of behaving autonomously. Finally, in Experiments 3, 4, and 5, we showed, with direct and indirect measures of attitudes, that reading that the model had approached vs avoided products was sufficient to create preferences in the participant for the approached one, regardless of whether it was explained that the model was a mere executor. This research highlights the largely unexplored effects of vicarious approach/avoidance behaviours. Theoretical and practical implications and possible developments of this line of research are discussed. (shrink)

Although the concept of value is central to sustainable business models (SBMs), the field has struggled to clarify what value is. SBM research accounts for multiple forms of value directed at multiple stakeholders. We argue that this diversity challenge should be addressed not by seeking a field-unifying definition of value but by developing methodological guidelines for a field-specific approach to defining value in SBM contexts. Based on Aristotelian logic and philosophical phenomenology of value, we develop an analytical framework that can (...) be used for generating good definitions of value. We use this framework to explore approaches to value in extant SBM literature, highlight problematic patterns in applications of this concept, and suggest ways to avoid these patterns. The result is a guide to assist SBM researchers in exploring and defining value, and in applying their definitions consistently in theory building efforts. (shrink)

In this article, we describe the transdisciplinarity process in our education postgraduate program at the University of Veracruz. The program emphasizes the main processes of the eco-formation experience for sustainability through a transdisciplinarity methodology that is focused on three processes: Re-Learning; Eco-literacy; and Dialogue of Knowledge. The experience of self-knowledge is described through our specific re-learning practices in the Mastership program, which represents a central tenet in the process for creating our Learning Community through holarchy practices, profound dialogues, and self-organization (...) processes. Finally we discuss three central ideas: creativity, spirituality, and play, which express and nurture our Learning Community. (shrink)

In his book Tales of the Mighty Dead Brandom engages Gadamer’s hermeneutic conception of interpretation in order to show that his inferentialist approach to understanding conceptual content can explain and underwrite the main theses of Gadamer’s hermeneutics which he calls “the gadamerian hermeneutic platitudes”. In order to assess whether this claim is sound, I analyze the three types of philosophical interpretations that Brandom discusses: de re, de dicto and de traditione, and argue that they commit him to an “ecumenical historicism” (...) that is directly at odds with the hermeneutic approach. Although the variety of de re interpretation that Brandom denominates de traditione comes indeed very close to the Gadamerian approach, I conclude that if Brandomian scorekeepers were to adopt it, they could become Gadamerian hermeneuts, but once they did, they would not be able to go back to their scorekeeping practices as described by Brandom. (shrink)

Gene therapy approaches have great promise in the treatment of neurodegenerative disorders and malignant brain tumors. Neuwelt et al. review available viral-mediated gene therapy methods and their blood-brain-barrier (BBB) disruption delivery technique, briefly mentioning nonviral mediated gene therapy methods. This commentary discussed the BBB disruption delivery technique, viral and nonviral mediated gene therapy approaches to Parkinson's disease, and the potential use of antisense oligo to suppress malignant brain tumors.

El siguiente informe pericial se basa en la experiencia de investigación de los firmantes en relación a las exhumaciones de fosas comunes de la Guerra Civil y la postguerra, y al conocido como “movimiento para la recuperación de la memoria histórica” que están teniendo lugar en España desde el año 2000, que ha enfatizado sus demandas sobre la suerte de los desaparecidos y ha puesto en marcha un ciclo de exhumaciones de fosas comunes derivadas de la Guerra Civil y la (...) dictadura. En este peritaje se usan las exhumaciones del siglo XXI como indicadores de la persistencia en el tiempo de las políticas y culturas del miedo instaladas en la sociedad española durante la Guerra Civil y la dictadura, más allá de las profundas transformaciones políticas e institucionales acaecidas en el país tras la muerte de Francisco Franco. Fue presentado como parte de la documentación de la demanda de Fausto Canales contra España el 15 de septiembre de 2012 en el Tribunal Europeo de Derechos Humanos. (shrink)

La relación entre la filosofía y la mística pareciese complicada y que no tendría lugar en las discusiones académicas, especialmente en pleno siglo xxi. Lo anterior es, sin duda, un error, porque han existido importantes filósofos que han incursionado y hablado sobre los misterios de la mística. En este artículo se verá que, a pesar de las diferencias, hay similitudes entre la experiencia mística y la filosofía, puntos de unión y de retroalimentación, especialmente haciendo referencia a la importancia del silencio (...) como un elemento inherente a la experiencia de lo sagrado. El Maestro Eckhart, filósofo y teólogo de la Baja Edad Media, y Martin Heidegger, exponente de la filosofía contemporánea, serán quienes nos hagan ver que la filosofía tiene atisbos de mística, y esta última no está tan alejada de la primera como se ha querido pronunciar axiomáticamente en la modernidad. (shrink)

Resumen Nombrar implica ejercer el poder sobre lo nombrado, involucra coacción y coerción social. La atribución de nombres, adjetivos, designaciones, favorece la taxonomía cognitiva, pero también socio-ideológico-cultural. Cuando una Institución al servicio del Estado nomina, esas denominaciones tienen consecuencias en los sujetos nombrados. En México, a través de las prácticas semiótico- discursivas se llevó a cabo esta edificación del concepto de discapacidad con importantes implicaciones. El objetivo de este artículo es describir la construcción discursiva, a través de la historia de (...) la nominación de la discapacidad para vincular este hecho con el imaginario social de México y revisar las implicaciones socio-ideológicas resultantes. Para efectuar un primer acercamiento, estudiamos los términos con que se designa la discapacidad en los Censos de población y vivienda realizados por el organismo responsable y sustentamos la exposición del proceso a partir de las propuestas de Lyons y Serrano sobre las implicaciones semánticas vinculadas con la designación; de Thiebaut respecto a la articulación semántica del nombre con la pragmática del texto, y con apoyo en Koike para la co-construcción del significado. (shrink)

The contribution of roots to the biology of the whole plant is being reevaluated in the light of classical and recent findings. In addition to their role in water and nutrient uptake and in symbiotic associations, plant roots also synthesize a remarkable variety of secondary metabolites. These chemicals, many of which are used as pharmaceuticals, agrichemicals, flavors, dyes, or fragrances, may help the plant cope with biotic and abiotic stress. Root cultures are being used as experimental systems to explore both (...) root‐specific secondary metabolites and their biological significance. They may also provide future systems for commercial production of plant specialty chemicals. (shrink)

This chapter explains the rationale behind the book. It provides basic definitions of the concept of the sharing economy as well as the primary meanings related to the subject of the analysis undertaken in the subsequent chapters. This Introduction also includes a description of the main benefits of the analysis of the sharing economy from a European perspective. It highlights that the idea of the book emerged from the collaboration of most co-authors in the COST Action CA16121 ‘From Sharing to (...) Caring: Examining Socio-Technical Aspects of the Collaborative Economy.’ Finally, the outline of the book is presented, providing a description of the content of each chapter within this academic collection. (shrink)

Introducción al dossier: “Revisitando el Cordobazo cincuenta años después”.

This paper investigates properties of \(\sigma \) -closed forcings which generate ultrafilters satisfying weak partition relations. The Ramsey degree of an ultrafilter \({\mathcal {U}}\) for _n_-tuples, denoted \(t({\mathcal {U}},n)\), is the smallest number _t_ such that given any \(l\ge 2\) and coloring \(c:[\omega ]^n\rightarrow l\), there is a member \(X\in {\mathcal {U}}\) such that the restriction of _c_ to \([X]^n\) has no more than _t_ colors. Many well-known \(\sigma \) -closed forcings are known to generate ultrafilters with finite Ramsey degrees, (...) but finding the precise degrees can sometimes prove elusive or quite involved, at best. In this paper, we utilize methods of topological Ramsey spaces to calculate Ramsey degrees of several classes of ultrafilters generated by \(\sigma \) -closed forcings. These include a hierarchy of forcings due to Laflamme which generate weakly Ramsey and weaker rapid p-points, forcings of Baumgartner and Taylor and of Blass and generalizations, and the collection of non-p-points generated by the forcings \({\mathcal {P}}(\omega ^k)/\mathrm {Fin}^{\otimes k}\). We provide a general approach to calculating the Ramsey degrees of these ultrafilters, obtaining new results as well as streamlined proofs of previously known results. In the second half of the paper, we calculate pseudointersection and tower numbers for these \(\sigma \) -closed forcings and their relationships with the classical pseudointersection number \({\mathfrak {p}}\). (shrink)

Este artigo busca demonstrar de que modo a escritura fílmica de Nuestra voz de tierra, memoria y futuro, de Marta Rodríguez e Jorge Silva, mobiliza uma atitude estética decolonial. Para isso, o texto analisa os principais procedimentos expressivos utilizados pela dupla de cineastas: a mise en scène partilhada com indígenas e camponeses da região do Cauca, na Colômbia, reunindo depoimentos e fabulações, e as operações da montagem voltadas para a desconstrução dos significantes coloniais.

In her book A Duty to Resist, Candice Delmas defends the view that we are not only permitted to disobey gravely unjust laws, but we may have a duty to do so. Moreover, not only civil but also uncivil disobedience may be justified in such cases. To justify both claims she argues that the same principles that justify a duty to obey the law—such as the principle of fairness, Samaritan duty, and associative obligations—also justify a duty to disobey the law. (...) The problem with this argumentative strategy is that it amounts to an attempt to derive the duty to disobey gravely unjust laws (or to resist them) from less stringent duties than the ones that can plausibly ground it. Against this strategy, I argue that the focus on laws that violate fundamental rights is what does all the normative work for justifying the duty to disobey/resist such laws, and the appeal to weaker principles is not only superfluous but also misleading. It has negative consequences for our understanding of what is owed to victims, in virtue of what, and by whom. (shrink)

Jürgen Habermas is one of the most significant contributors to the development of hermeneutics in contemporary philosophy. His specific approach to critical theory is heavily indebted to the hermeneutic conception of language. This chapter highlights the basic features of that approach through an analysis of the main philosophical issues at the center of Habermas's sustained engagement with Gadamer's philosophical hermeneutics. The hermeneutic model of a linguistically articulated lifeworld that makes mutual understanding possible is the key conceptual resource that enabled Habermas (...) to break with the paradigm of mentalism that was predominant in the work of the first generation of Frankfurt School critical theorists. The chapter focuses on the normative difficulty that arises in an attempt to integrate hermeneutics and critical theory. It remains an open question whether the Habermasian approach to critical theory can succeed in its goals. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Narrative Symposium:Conflicting Interests in MedicineLaura Jean Bierut, Sal Cruz-Flores, Laura E. Hodges, Anthony A. Mikulec, Govind K. Nagaldinne, Erine L. Bakanas, John F. Peppin, Joel S. Perlmutter, William H. Seitz Jr., Edward Diao, Andre N. Sofair, and David M. Zientek• To Recruit or Not to Recruit for a Clinical Trial• An Unexpected Lesson• Am I on call for the entire Midwest?• Why is Medicare Wasting Away?• The Downside (...) of the Informed Consent Juggernaut• Expert Testimony at the Food and Drug Administration: Who Wants the Truth?• Crossroads: The Intersection of Personal, Professional Society, and Industry Relationships• A Change of Heart• The Evolution of Conflicts of Interest in a New Subspecialty: A Case Study of the Development of Interventional CardiologyCopyright © 2011 The Johns Hopkins University Press... (shrink)

En diversas religiones o filosofías, sobre todo aquellas de tendencia oriental, el Silencio ha sido un punto de partida para poder entablar un diálogo con lo Sagrado, lo Trascendente, o Dios, y un elemento esencial de la experiencia hierofánica. En este artículo se expone que tres creencias espirituales enraizadas en el mundo oriental: judaísmo, islamismo sufí y taoísmo, convergen en la idea del Silencio como un metalenguaje donde lo Sagrado se manifiesta. A pesar de la divergencia doctrinal que existe entre (...) dichas religiones, el Silencio genera en sus practicantes una experiencia abrumadora ante algo que los trasciende, trastocando lo más íntimo de su ser y que en el lenguaje convencional les es difícil expresar. (shrink)

A leitura pode ser analisada sob vários ângulos: social, pedagógico, cultural, cognitivo, dentre outros. Contudo, abordar os aspectos mencionados, em conjunto ou sequencialmente, demanda uma verticalização prodigiosa da pesquisa; por isso este artigo busca apenas apresentar e discutir alguns aspectos cognitivos relevantes para a prática leitora, dando ênfase à memória e, por isso mesmo, ao conhecimento prévio. Acreditamos que, conhecendo melhor os tipos de memória e não ignorando o vínculo necessário entre memória e conhecimento prévio, se torne mais viável para (...) o professor mobilizar meios eficazes para propor atividades de leitura compreensiva e, também, mais importante ainda, para mostrar e explicar aos alunos como fazer uma leitura desse tipo. A concepção subjacente à presente escolha decorre do entendimento de que a leitura é um processo sociocognitivo complexo não redutível a seu resultado imediato, obtido em testes padronizados e avaliado em termos positivos ou negativos, de modo negáabsoluto. Na verdade, não nos interessa exclusivamente conferir ao leitor a condição de leitor proficiente ou não, desconhecendo as práticas leitoras com as quais o sujeito testado tem ou teve contato até o momento. O que nos instiga e motiva, de fato, é o ensino-aprendizagem da compreensão do texto escrito. Assim, abordaremos ao longo deste artigo questões atinentes ao processamento cognitivo de textos, com a finalidade de elucidar a sua importância decisiva para o ensino-aprendizagem da habilidade de compreensão leitora, no contexto escolar. (shrink)

The theme surrounding scientific discoveries is quite neglected in and about the sciences, especially in terms of historical and epistemological understanding. Discoveries are often treated as simple information about dates, places, and people. This work presents discussions centered on historical episodes related to chemical elements and the Periodic Law, based on reflections by Thomas Kuhn and Norwood Hanson, aiming to highlight and contextualize specific scientific discoveries' conceptual and epistemological structure. With that in mind, issues related to the inseparability of the (...) contexts of discovery and justification are recovered, along with the complex intrinsic structures of the genesis of scientific knowledge and distinct types and categories of scientific discoveries. (shrink)

Martin Heidegger generalizes hermeneutics from a traditional method for interpreting authoritative texts (mainly sacred or legal texts) to a way of understanding human beings themselves. It is precisely because human beings are nothing but interpretation all the way down that the activity of interpreting a meaningful text offers the most appropriate model for understanding any human experience whatsoever. Recognizing the linguistically articulated intelligibility that Dasein shares with others by virtue of sharing a natural language leads to the crucial hermeneutic claim (...) of Being and Time, namely, the priority of understanding over perception. The most challenging feature of Heidegger's application of his projective view of interpretation to cognition is the transformation of the traditional conception of a priori knowledge that follows from it. This transformation lies behind Heidegger's choice of the term “fore‐structure of understanding” to explicitly mark the presuppositional character of all interpretation. (shrink)

Disinformation poses a significant challenge to contemporary society, as it has the potential to undermine the stability of democratic systems, put public health at risk, and undermine the credibility of science. We explore the question of whether certain groups of people are especially exposed to disinformation and, in particular, we focus on older people. We examine the purported impact of cognitive and linguistic factors, such as source amnesia and the need for consistency, the decline of pragmatic skills in recognizing intentions (...) and decoding figurative language, as well as motivational factors like the need for affiliation. Taken together, these empirical data suggest that there may indeed be specific vulnerabilities associated with older age. This hypothesis calls for finding ways to protect a category of people who already suffer from numerous other vulnerabilities. (shrink)

RésuméNotre propos est de réunir quelques réflexions de Pascal Quignard sur le récit afin d’en dégager les coordonnées ou les prémisses d’une théorie narrative chez cet écrivain qui, n’étant pas un théoricien, est sans doute quelqu’un qui fait œuvre de pensée. Notre hypothèse est que, situées dans le cadre d’une épistémologie naturaliste et d’un récit anthropogénétique au sein duquel la prédation joue un rôle majeur, en particulier celui de condition de possibilité de la narration, les spéculations de Quignard s’élaborent sur (...) fond de la théorie sémio-narrative laquelle subit ainsi une reformulation. Nous soutenons que la réinterprétation quignardienne fait partie des théories, comme celles de Petitot et de Thom, qui proposent une solution morphogénétique au problème de la conversion (de la substance sémique en forme narrative) tel qu’il se présente chez Greimas. Au sein de cette convergence avec le structuralisme naturaliste et morphodynamique, la spécificité de Quignard réside dans la configuration de la conversion comme capture. Cette figure dynamique devient alors un opérateur de narrativité différent des modèles logiques (carré sémiotique) ou topologiques (catastrophes) qui formalisent rationnellement la conversion. Elle est au cœur de la pensée de l’écrivain sur le phénomène narratif. (shrink)

En este artículo analizamos la figura de Alexandra Elbakyan y su proyecto Sci-Hub, en cuya web se encuentran alojados más de 85 millones de documentos científicos a los que se puede acceder gratuitamente.Reflexionaremos sobre los cercamientos al conocimiento científico, el colonialismo en la producción académica y las propuestas que trabajan por un acceso abierto a la información científica. Tomaremos como referencia la desobediencia protagonizada por Elbakyan que, como mujer joven, no occidental e ideológicamente comprometida con posiciones anti neoliberales, representa una (...) identidad no hegemónica. (shrink)