In this research, a sliding mode regulator with sine mapping is suggested for the stabilization of electricity generators being affected by magnet interaction nonlinearities and generator nonlinearities. To reach this goal, our suggested regulator has the following contributions: it starts from the sliding mode regulator with the modifications that the saturation mapping is used to reach a smoother performance instead of the signum mapping, and the sine mapping is applied to reach an upper bound in the proportional gain error, it (...) is used to reach some chosen constant behaviors for the angle position, angle speed, and current in the electricity generators, and its stabilization is ensured based on the Lyapunov approach. We show the simulation of the suggested regulator in two electricity generators. (shrink)

The purpose of this study is to examine how faith-led practices in family firms affect organizational stewardship. Current studies highlight the relevance of religious adherence for family businesses, yet provide limited understanding of how this shapes the key traits of these organizations. Drawing on six autobiographies of family business leaders who openly express their adherence to their faith, and adopting an open-systems analysis of these autobiographies, we demonstrate that faith-led values influence organizational and leadership practices. Overall, our study suggests that (...) the influence of religious beliefs in the organizational practices of family businesses have greater repercussions than previously thought. By introducing a faith-led approach to stewardship, we enrich the theoretical discussion around stewardship and the relevance of religion in family business. (shrink)

Britons viewed speculative thinking as a primary cause of the French Revolution and the disorders that followed. In this context, Edmund Burke and others identified a form of enthusiasm that was theoretical, not religious, in nature, but which also corrupted reasoning to disastrous effect. This article investigates how this accusation was made against David Ricardo and his political economy, and the variable defences that he deployed. The result is to uncover the language that was used to appraise political (...) economy in the late eighteenth and early nineteenth centuries, along with the intellectual disciplines that were prescribed to protect economic reasoning from falling into fantasy. (shrink)

This book is a companion volume to the Royal Economic Society edition of The Works and Correspondence of David Ricardo, edited by Piero Sraffa with the collaboration of Maurice Dobb. It completes the record on Ricardian value theory by showing Ricardo's reaction to Malthus's pamphlet The Measure of Value Stated and Illustrated of 1823. Ricardo's Notes are, in Sraffa's words, 'the only considerable item' not appearing in the Royal Economic Society edition of his works. In addition, (...) the recent publication by Cambridge of the variorum edition of Malthus's Principles of Political Economy, edited by J. M. Pullen, makes it possible to understand Malthus's pamphlet as an intermediate step between the 1820 and 1836 editions of the Principles. In his introduction Pier Luigi Porta highlights the place of these Notes in the development of Ricardo's thinking. When taken with Ricardo's paper on 'Absolute Value and Exchangeable Value', these Notes provide the essentials of Ricardian value theory. (shrink)

This work is a welcome opportunity for students of Ricardo to examine the seminal literature on this important figure and assess his contribution to economic thought. Routledge is extending its chronological coverage of the Critical Assessments of David Ricardo. Since the publication of the original four volume set in 1985, new articles have come to light and are now published in three additional volumes.

The purpose of this study is to examine how faith-led practices in family firms affect organizational stewardship. Current studies highlight the relevance of religious adherence for family businesses, yet provide limited understanding of how this shapes the key traits of these organizations. Drawing on six autobiographies of family business leaders who openly express their adherence to their faith, and adopting an open-systems analysis of these autobiographies, we demonstrate that faith-led values influence organizational and leadership practices. Overall, our study suggests that (...) the influence of religious beliefs in the organizational practices of family businesses have greater repercussions than previously thought. By introducing a faith-led approach to stewardship, we enrich the theoretical discussion around stewardship and the relevance of religion in family business. (shrink)

First published in 1994. Routledge is an imprint of Taylor & Francis, an informa company.

While Marx’s critique of David Ricardo is frequently debated, Marx’s critique of Samuel Bailey has, for far too long, remained in the shade. I try to show that Ricardo and Bailey represent two fundamental “moments” of Marx’s Darstellung. The word “moment” is here used in a non-generic sense: Ricardo’s and Bailey’s theories of value represent two opposite and contradictory sides of value’s category as presented in Marx’s critique of political economy. Building on the work of Hans (...) Georg Backhaus, who claims that the first chapter of Volume one of the Capital can be understood only as a metacritique of Bailey’s critique of Ricardo, this topic is developed in order to further clarify the connection of critique and presentation in Marx’s theory. (shrink)

David Ricardo was a hugely influential British political economist and stock trader. This volume, first published in 1923, contains five important pamphlets published by him, edited and with an overarching introductory essay by E. C. K. Gonner. Each essay relates either to monetary and financial subjects - including the high price of Bullion, monetary theory and the position of the Bank of England - or to the agricultural conditions of Britain and proposed solutions to the problems discussed. This (...) is a fascinating and detailed work, which will be of great value to those with an interest in Ricardo’s theories and British economic history. (shrink)

ABSTRACTThis paper introduces and transcripts two hitherto unpublished letters by the political economist David Ricardo to his neighbour and intimate friend Thomas Smith of Easton Grey. In these letters dated 11 December 1819 and 12 February 1821, Ricardo mentioned the third edition of his Principles of Political Economy and Taxation, as well as his notes on the first edition of Malthus’s Principles of Political Economy Considered with a View to their Applications. Ricardo referred also to several (...) contemporary debates in the House of Commons where he seated for the borough of Minchinhampton since the early part of the year 1819. Amongst these debates are the ‘Seditious Meetings Prevention Bill’; the affair of a pamphlet anonymously published in late 1819 and entitled A Trifling Mistake; the issue of parliamentary reform; and Ricardo’s opposition to Alexander Baring on the origin of the contemporary distress as well as on his project of a return to bimetallism as a measure of relief. (shrink)

Full-reserve banking, which prohibits private money creation, has not been implemented since the 19th century. Thereafter, bank deposits became the dominant means of payment and have retained their position until today. The specific contribution of this paper is to provide a comprehensive outlook on the historical and contemporary proposals for full-reserve banking. The proposals for full-reserve banking have become particularly popular after serious financial crises....

Part of an eleven-volume set which contains all of Ricardo's published and unpublished writings, and provides great insight into the early era of political economics.

Part of an eleven-volume set which contains all of Ricardo's published and unpublished writings, and provides great insight into the early era of political economics.

Part of an eleven-volume set which contains all of Ricardo's published and unpublished writings, and provides great insight into the early era of political economics.

Part of an eleven-volume set which contains all of Ricardo's published and unpublished writings, and provides great insight into the early era of political economics.

Part of an eleven-volume set which contains all of Ricardo's published and unpublished writings, and provides great insight into the early era of political economics.

O presente artigo tem o objetivo de explorar os limites do conceito de auto-ética, apresentado por Edgar Morin no volume 6 de sua obra O Método. Para tanto, nos apoiaremos nos conceitos fundamentais do materialismo dialético – sobretudo a partir do pensamento de Gyorgy Lukács – de modo que seja possível analisar a proposição teórica de Morin a partir dos fundamentos filosóficos que vêm balizando nossa compreensão de mundo. Em um primeiro momento, abordaremos o conteúdo conceitual de auto-ética, como apresentado (...) por Morin. Na seqüência, buscaremos compor um conceito fundamental de ética a partir do materialismo dialético, para então, passarmos a analisar a viabilidade teórica da auto-ética com base nos pressupostos éticos do materialismo dialético. (shrink)

O objetivo do presente ensaio é analisar alguns aspectos da obra de Paulo Freire para trazer à luz a base metodológica sobre a qual Freire erguia seu pensamento, e sobre a qual nos é possível apontar para um fazer pesquisa enquanto prática libertadora e emancipatória. Buscamos expor, assim, os traços característicos do Materialismo Dialético presentes na obra do autor, para então analisar a categoria Diálogo, apresentada em Pedagogia do Oprimido, como princípio orientador de todo o pesquisador que se quer libertador, (...) verdadeiramente emancipatório, compromissado com a mudança, com o vir-a-ser humano. (shrink)

True ecotourism requires us to regain an understanding of the inextricable links between the habitats of a region, including its inhabitants, and their habits. With this systemic approach that integrates economic, ecological, and ethical dimensions, we define ecotourism as “an invitation to a journey to appreciate and share the ‘homes’ of diverse human and non-human inhabitants, their singular habits and habitats.” Today, mass nature tourism often denies theselinks and is generating biocultural homogenization, socio-ecological degradation, and marked distributive injustices in iconic (...) places, such as Costa Rica, the Galapagos and Cape Horn. In order to implement genuine ecotourism in Latin America and elsewhere, it is imperative to overcome marketing ambiguities, and pay close attention to local autonomy and biocultural diversity. (shrink)

This letter addresses the editorial decision to publish the article, “Research on group differences in intelligence: A defense of free inquiry” (Cofnas, 2020). Our letter points out several critical problems with Cofnas's article, which we believe should have either disqualified the manuscript upon submission or been addressed during the review process and resulted in substantial revisions.

When an English translation of Being and Event appeared in 2005, Alain Badiou took the opportunity to reminisce about the initial French publication some twenty years before: “at that moment I was quite aware of having written a ‘great’ book of philosophy.” He located that greatness in four “affirmations” and one “radical thesis.”.

O artigo apresenta uma pesquisa qualitativa que relata a organização espacial das fazendas aquícolas no litoral central de Santa Catarina, nas comunidades da Praia de Fora e Enseada de Brito, as quais se encontram no município de Palhoça, pertencentes ao Aglomerado Urbano de Florianópolis. As características de ocupação urbana nas localidades supracitadas remontam ao século XVIII, mantendo as atividades econômicas extrativistas e rurais até a segunda metade do século XX. A partir da década de 1960/1970 verificou-se acelerado processo de construção (...) de casas de veraneio, sobrepujado por uma intensa urbanização com moradores fixos por causa do calçamento da via principal em 2010. A legalização das fazendas marinhas ocorreu nesta mesma época, como parte do “Plano Nacional de Desenvolvimento da Maricultura”, nos estados litorâneos brasileiros com aptidão ao cultivo nas comunidades envolvidas, apesar dos conflitos socioambientais. O município de Palhoça detém a maior produção de mexilhões em Santa Catarina. O marisco é um alimento popular no litoral catarinense e também uma iguaria na gastronomia internacional. A maior ameaça ao setor são os efluentes urbanos e os seus impactos ambientais. A falta de uma associação de produtores, bem como de um planejamento voltado à ocupação territorial de modo controlado e racional, tomando como fim a preservação do ecossistema de interesse, afeta a continuidade e o desenvolvimento econômico da atividade. (shrink)

The objective of this paper is to estimate the unmeasurable variables of a multistable chaotic system using a Luenberger-like observer. First, the observability of the chaotic system is analyzed. Next, a Lipschitz constant is determined on the attractor of this system. Then, the methodology proposed by Raghavan and the result proposed by Thau are used to try to find an observer. Both attempts are unsuccessful. In spite of this, a Luenberger-like observer can still be used based on a proposed gain. (...) The performance of this observer is tested by numerical simulation showing the convergence to zero of the estimation error. Finally, the chaotic system and its observer are implemented using 32-bit microcontrollers. The experimental results confirm good agreement between the responses of the implemented and simulated observers. (shrink)

The multiobjective optimization on the basis of ratio analysis method captures diverse features such as the criteria and alternatives of appraising a multiple criteria decision-making problem. At the same time, the multiple criteria problem includes a set of decision makers with diverse expertise and preferences. In fact, the literature lists numerous approaches to aid in this problematic task of choosing the best alternative. Nevertheless, in the MCDM field, there is a challenge regarding intangible information which is commonly involved in multiple (...) criteria decision-making problem; hence, it is substantial in order to advance beyond the research related to this field. Thus, the objective of this paper is to present a fused method between multiobjective optimization on the basis of ratio analysis and Pythagorean fuzzy sets for the choice of an alternative. Besides, multiobjective optimization on the basis of ratio analysis is utilized to choose the best alternatives. Finally, two decision-making problems are applied to illustrate the feasibility and practicality of the proposed method. (shrink)

In June 2016, David Chalmers delivered the Petrus Hispanus Lectures at the LanCog research group, University of Lisbon, on the subject of objects, properties, and perception in virtual reality environments. The paper resulting from these lectures was subsequently published in Disputatio as “The Virtual and the Real”. In it, Chalmers defends virtual realism, according to which virtual objects are bona fide digital objects with virtual counterparts of perceptible properties such as colour and shape, and perception in virtual reality environments (...) is typically veridical rather than illusory. This special issue collects responses to Chalmers due to Claus Beisbart, Jesper Juul, Peter Ludlow, Neil McDonnell and Nathan Wildman, Alyssa Ney, Eric Schwitzgebel, and Marc Silcox; together with a detailed response by Chalmers to each paper. You can read the target article under discussion in this Special Issue here: https://doi.org/10.1515/disp-2017-0009. (shrink)

We give $A_p$ type conditions which are sufficient for two-weight, strong $$ inequalities for Calderón-Zygmund operators, commutators, and the Littlewood-Paley square function $g^*_\lambda $. Our results extend earlier work on weak $$ inequalities in [13].

Purpose This paper aims to examine whether there are morally defensible reasons for using or operating websites that offer distributed denial-of-service attacks on a specified target to users for a price. Booters have been linked to some of the most powerful DDoS attacks in recent years. Design/methodology/approach The authors identify the various parties associated with booter websites and the means through which booters operate. Then, the authors present and evaluate the two arguments that they claim may be used to justify (...) operating and using booters: that they are a useful tool for testing the ability of networks and servers to handle heavy traffic, and that they may be used to perform DDoS attacks as a form of civil disobedience on the internet. Findings The authors argue that the characteristics of existing booters disqualify them from being morally justified as network stress testing tools or as a means of performing civil disobedience. The use of botnets that include systems without the permission of their owners undermines the legitimacy of both justifications. While a booter that does not use any third-party systems without permission might in principle be justified under certain conditions, the authors argue that it is unlikely that any existing booters meet these requirements. Practical/implications Law enforcement agencies may use the arguments presented here to justify shutting down the operation of booters, and so reduce the number of DDoS attacks on the internet. Originality/value The value of this work is in critically examining the potential justifications for using and operating booter websites and in further exploring the ethical aspects of using DDoS attacks as a form of civil disobedience. (shrink)

Caspar David Friedrich was the quintessential Romantic figure, portraying the Sublime in his landscape paintings. The Romantic period, particularly in Germany, England, and France, was characterized by the full development of aesthetics as a separate branch of philosophy. The terrible Sublime was contrasted with the more formal elements of Beauty. In this paper, Dr. dela Cruz similarly compares the inarticulable aesthetic sensibility and the more formal method of logical analysis, underscoring her own transition from philosophy to creative writing. (...) She provides a philosophical analysis of what picture theorists call the “visual metaphor” in Friedrich’s key works, in particular “The Wanderer Above a Sea of Fog” and “On the Sailingboat.” Her engagement with these works takes the form of a creative piece—an ekphrastic poem—integrated in a philosophical paper, which is also simultaneously about the aesthetics of that literary form. (shrink)