Este trabajo surge a partir de la investigación general de las técnicas hidropónicas teniendo en cuenta sus ventajas y desventajas para de esta forma poder encontrar aquel factor determinante a través de una comparación de técnicas hidropónicas que permitan clasificarlas y escoger la mejor opción que genere menos impacto ambiental negativo y demuestre ser más productivo en los entornos urbanos. Adicionalmente, un factor determinante en las ciudades es su espacio limitado por lo que la mejor opción también deberá incluir un (...) óptimo manejo del espacio que permita a casi cualquier individuo poder aplicarlos desde su entorno sin recurrir a excesivas modificaciones. Como principal resultado se escogió a la Hidroponía recirculante como método predominante por los excelentes resultados que se obtienen con relación a los demás, adicionalmente, este puede ser fácilmente aplicado en los ambientes urbanos por su versatilidad y buen manejo de recursos. Palabras Clave: Hidroponia, ambiente, urbano, comparativa, técnicas, cultivo. Referencias [1]J. López, «La producción hidropónica de cultivos,» IDESIA, vol. 36, nº 2, pp. 139-141, 2018. [2]J. Lee, A. Rahman, J. Behrens, C. Brennan, B. Ham, H. Seok Kim, C. Won, S. Yun, H. Azam y M. Kwon, «Nutrient removal from hydroponic wastewater by a microbial consortium,» New Biotechnology, vol. 41, pp. 15-24, 2018. [3]H. Ku, C. Tiong, A. Suresh y B. Ong, «“Active” hydroponic greenhouse system to kick-start and augment reforestation program through carbon sequestration e an experimental and theoretical feasibility study,» Journal of Cleaner Production, vol. 129, pp. 637-646, 2016. [4]J. Beltrano y D. Gimenez, Cultivo en hidroponía, Buenos Aires: Universidad de la Plata, 2015. [5]L. Ramírez, M. Pérez, P. Jiménez, H. Giraldo y E. Gómez, «Evaluación preliminar de sistemas acuapónicos e hidropónicos en cama flotante para el cultivo de orégano,» Revista Facultad de Ciencias Básicas, vol. 7, nº 2, pp. 242-259, 2011. [6]S. Hosseinzadeh, D. Testai, M. BKheet y J. De Graeve, «Degradation of root exudates in closed hydroponic systems using UV/H2O2: Kinetic investigation, reaction pathways and cost analysis,» Science of the Total Environment, vol. 1, pp. 1-9, 2019. [7]N. Camarena, A. Rojas y M. Santos, «Fluoride bioaccumulation by hydroponic cultures of camellia,» Chemosphere, vol. 136, pp. 56-62, 2015. [8]W. Wang, Y. Ma, L. Fu, Y. Cui y M. Yaqoob, «Physical an mechanical properties of hydroponic lettuce for automatic harvesting,» Informatión processing in agriculture, vol. 1, pp. 2214-3173, 2020. [9]M. Zárate, Manual de Hidroponia, Coyoacán: Universidad Autónoma de Mexico, 2014. [10]S. Magwaza, L. Magwaza, A. Odindo y C. Buckley, «Partially treated domestic wastewater as a nutrient source for tomatoes grown in a hydroponic system: effect on nutrientabsorption and yield,» Heliyon, vol. 6, nº 12, pp. 2405-8440, 2020. [11]C. ARANO, «Hidroponía: Algunas paginas de historia,» Tecnología de Producción, nº 58, pp. 24-32, 2007. [12]G. Guzmán, Hidroponia en Casa: Una actividad familiar, Costa Rica: Ministerio de Agricultura y ganaderia, 2004. [13]J. Gilsanz, HIDROPONIA, Montevideo : Unidad de Comunicación y Transferencia de Tecnología, 2007. [14]C. Miller, «El debate de hidroponia orgánica: Perspectivas norteamericanas sobre si la producción hidropónica merece ser certificada como orgánica.,» Productores de Hortalizas, nº 6, pp. 36-38, 2017. [15]A. Herrera, «Manejo de la solución nutritiva en la producción de tomate en hidroponía,» Terra Latinoamericana, vol. 17, nº 3, pp. 221-229, 1999. [16]C. Espinal y D. Matulić, «Recirculating Aquaculture Technologies,» Biomedical and Life Sciences, pp. 35-76, 2020. [17]H. Resh, «Técnicas de cultivo con flujo laminar de nutrientes,» de Cultivos Hidroponicos, España, Mundi-Prensa, 2001, pp. 35-37. [18]P. Blanca y L. Teresa, «Sistemas recirculantes y su interés en el cutlivo de ornamentales,» Tecnología de producción, nº 35, pp. 34-36, 2006. [19]C. Magán, «Recirculación de las soluciones nutritivas, Manejo y Control Microbiologico,» InfoAgro, nº 2, pp. 1-2, 2016. [20]S. Goddek, A. Joyce, B. Kotzen y M. Dos-Santos, «Aquaponics and Global Food Challenges,» Aquaponics Food Production Systems. Springer, vol. 1, nº 1, pp. 3-17, 2019. [21]S. G. Verdoliva, D. Gwyn Jones, A. Detheridge y P. Robson, «Controlled comparisons between soil and hydroponic systems reveal increased water use efficiency and higher lycopene and β-carotene contents in hydroponically grown tomatoes,» Scientia Horticulturae, pp. 3002-4238, 2020. [22]A. Chaudhry y V. Mishra, «A Comparative Analysis of Vertical Agriculture Systems in Residential Apartments, » de 2019 Advances in Science and Engineering Technology International Conferences, Dubai, United Arab Emirates, United Arab Emirates, 2019. [23]T. Mazhar, G. Jianmin, L. Imran, S. Kashif, Q. Waqar, S. Sher y C. Jiedong, «Modern plant cultivation technologies in agriculture under controlled nvironment: a review on aeroponics,» Journal of Plant Interactions, vol. 13, nº 1, pp. 338-352, 2012. [24]K. Janiak, A. Jurga, J. Kuźma, W. Breś y M. Muszyński, «Surfactants effect on aeroponics and important mass balances of regenerative life support system – Lettuce case study,» Science of the Total Environment, vol. 718, nº137324, pp. 1-12, 2020. [25]F. Rahman, I. Jahan, R. Biplob, N. Farhin y J. Uddin, «Automated Aeroponics System for Indoor Farming using Arduino,» de 2018 Joint 7th International Conference on Informatics, Electronics & Vision and 2018 2nd International Conference on Imaging, Vision & Pattern Recognition, Kitakyushu, Japan, 2018. [26]M. Caldeyro Stajano, «La Hidroponía Simplificada como Tecnología apropiada, para implementar la Seguridad Alimentaria en la Agricultura Urbana.,» Cuadernos del CEAgro, nº 8, pp. 71-76, 2006. (shrink)

M. J. Woods; XI*—Substance and Essence in Aristotle, Proceedings of the Aristotelian Society, Volume 75, Issue 1, 1 June 1975, Pages 167–180, https://doi.org/10.

M. Hakan Yavuz offers an insightful and wide-ranging study of the Gulen Movement, one of the most controversial developments in contemporary Islam. Founded in Turkey by the Muslim thinker Fethullah Gulen, the Gulen Movement aims to disseminate a ''moderate'' interpretation of Islam through faith-based education.

In this paper we examine the case of Tay, the Microsoft AI chatbot that was launched in March, 2016. After less than 24 hours, Microsoft shut down the experiment because the chatbot was generating tweets that were judged to be inappropriate since they included racist, sexist, and anti-Semitic language. We contend that the case of Tay illustrates a problem with the very nature of learning software that interacts directly with the public, and the developer's role and responsibility associated with it. (...) We make the case that when LS interacts directly with people or indirectly via social media, the developer has additional ethical responsibilities beyond those of standard software. There is an additional burden of care. (shrink)

An analysis of the recent efforts to define what counts as a "conspiracy theory", in which I argue that the philosophical and non-pejorative definition best captures the phenomenon researchers of conspiracy theory wish to interrogate.

We argue that thoughts are structures of concepts, and that concepts should be individuated by their origins, rather than in terms of their semantic or epistemic properties. Many features of cognition turn on the vehicles of content, thoughts, rather than on the nature of the contents they express. Originalism makes concepts available to explain, with no threat of circularity, puzzling cases concerning thought. In this paper, we mention Hesperus/Phosphorus puzzles, the Evans-Perry example of the ship seen through different windows, and (...) Mates cases, and we believe that there are many additional applications. (shrink)

Çin, son dönemlerde Körfez Bölgesine yönelik izlediği aktif politika, Çin Devlet Başkanı Xi Jipping’in (Şi Cinping), 7-9 Aralık 2022 tarihinde Körfez’e gerçekleştirdiği kapsamlı ziyaretle birlikte daha fazla dinamizm kazanmıştır. Bu ziyareti takiben yapılan analizler Çin’in, Körfez açılımını ABD’nin bölgesel hegemonyasını zayıflatmaya yönelik bir girişim olarak değerlendirmektedirler. Aynı ziyaret sırasında Pekin ve Riyad yönetimleri arasında imzalanan kapsamlı anlaşmalar ise ABD’nin Körfezdeki uzun erimli güvenlik partneri Suudi Arabistan’a ilişkin “eksen kayması” tartışmalarını başlattı. Bu çalışma güncelliğini koruyan iki tartışmanın kapsamlı bir muhakemesini yapmayı (...) hedeflemektedir. Bu amaçla uluslararası ilişkiler disiplinin son dönem fenomen teorisi olan hiyerarşinin ilgili argümanları kullanılmaktadır. Bu teorik çerçeveden hareketle, çalışmada ilk olarak Çin’in Körfez siyasetini şekillendiren stratejilerin fiyat arttırma (oubidding) ve negatif dengeleme (negative balancing) olduğu ve bu stratejilerin Körfez Bölgesi ülkeleri açısından yeni imkânlar yarattığı tespitinde bulunulmaktadır. Bunun yanı sıra Suudi Arabistan’ın, Çin ile gelişen ikili ilişkilerini hâlihazırda ABD ile sürdürmekte olduğu ilişkisine bir alternatif olarak görmediği, aksine Çin’in bahsi geçen stratejilerinden maksimum kazanım elde ederek otonomisini arttırmaya çalıştığı ayrıca belirtiliyor. (shrink)

This book is an extensive survey and critical examination of the literature on the use of expert opinion in scientific inquiry and policy making. The elicitation, representation, and use of expert opinion is increasingly important for two reasons: advancing technology leads to more and more complex decision problems, and technologists are turning in greater numbers to "expert systems" and other similar artifacts of artificial intelligence. Cooke here considers how expert opinion is being used today, how an expert's uncertainty is or (...) should be represented, how people do or should reason with uncertainty, how the quality and usefulness of expert opinion can be assessed, and how the views of several experts might be combined. He argues for the importance of developing practical models with a transparent mathematic foundation for the use of expert opinion in science, and presents three tested models, termed "classical," "Bayesian," and "psychological scaling." Detailed case studies illustrate how they can be applied to a diversity of real problems in engineering and planning. (shrink)

This article explores early Greeks' cosmological speculation, showing how they explored the possibility of a “theory of everything” and human understanding of the cosmos. In the exposition of competitive cosmologies, there are three questions still unresolved: the form of most of the matter in the universe is not known; the process of beginning of the universe is not known; and whether the universe is finite or infinite is also not known. Presocratic solutions to these problems, still perplexing to the contemporaries, (...) are tackled in this article, with the addition of a note on what is called the anthropic principle, which addresses the place of human life and human observation in the whole. (shrink)

In the long 20th century, modern China experienced perhaps the world’s most radical and systematic secularization process and the decimation of traditional religious and ritual cultures. This article seeks to account for this experience by engaging with postcolonial theory, a body of discourse seldom found relevant to China Studies. The article attempts a two-pronged critique of both state secularization and some aspects of existing Postcolonial Studies/theory. It shows the many ways in which nationalist elites in modern China unwittingly absorbed Western (...) Orientalist discourse even as their words and actions were ostensibly anti-colonial, and much of the article examines the consequences of this native Orientalism upon Chinese religiosities. Finally, the article suggests that one cannot discuss governmentality in modern China without understanding how it is intertwined with a sovereign power that is both archaic and, at the same time, has experienced renewal and expansion in modernity. (shrink)

Disguised plagiarism often goes undetected. An especially subtle type of disguised plagiarism is translation plagiarism, which occurs when the work of one author is republished in a different language with authorship credit taken by someone else. I focus on the challenge of demonstrating this subtle variety of plagiarism and examine the corruptive influence that plagiarizing articles exert on unsuspecting researchers who later cite them in the downstream literature as genuine products of research. I conclude by arguing that an open discussion (...) of plagiarizing articles in philosophy is necessary for maintaining the reliability of the body of published research and for restoring integrity to scholarly communication. (shrink)

This is the first full-length biography of John Langshaw Austin (1911–60). The opening four chapters outline his origins, childhood, schooling, and time as an undergraduate, while the next four examine his early career in professional philosophy, looking at the influence of Oxford Realism, Logical Positivism, Pragmatism, and the later Wittgenstein. The central twelve chapters then explore Austin’s wartime career in British Intelligence. The first three examine the contributions he made to the campaigns in North Africa; the next seven the seminal (...) role he played in ensuring the outstanding accuracy of the D-Day Intelligence; while the final two explore his contributions to Arnhem, the Ardennes, and the post-war administration of Germany. The last main section of the book then outlines and assesses Austin’s contributions to post-war Oxford Ordinary Language Philosophy. The first three chapters discuss the impact on Oxford philosophy of the cultural atmosphere of post-war Britain and the later Wittgenstein’s ideas. The next four look at Austin’s influence on post-war Oxford, particularly his Saturday morning discussion group and his perception lectures. The next five chapters concentrate on America’s influence on Austin and vice versa, paying particular attention to Austin’s work on speech-acts and his semesters in Harvard and Berkeley. The final two chapters examine Austin’s declining influence in Oxford, and his tragically premature death. (shrink)

This article examines the mutual influence between Ernst Cassirer and his cousin, the neurologist Kurt Goldstein. For both Cassirer and Goldstein, views on the nature of human cognition were fundamental to their understanding of scientific knowledge, and these were informed by both philosophical theorizing and empirical research on pathologies of the nervous system. Following Cassirer, and in agreement with the physicalism of the Vienna Circle, Goldstein held that the physical sciences had progressed by arriving at abstract, mathematical representations to take (...) the place of qualitative characterizations of observable reality. In tension with physicalism, Goldstein was not sanguine about the fruitfulness of the abstractive approach in biology. He proposed that biology must adhere to its own sui generis methods of observation and experimentation in order to obtain knowledge of the “natures” of living organisms. I argue that there is a parallel with Cassirer’s assertion of the differences between physical and cultural sciences, underwritten by the deployment of varying symbolic functions. I also propose that the neurological writings of Goldstein are an important backdrop to Cassirer’s positive evaluation of abstract thought, in contrast to the pessimism regarding a worldview dominated by scientific abstractions expressed by philosophers such as Bergson, Whitehead, and Husserl. (shrink)

The paper discusses Husserl's phenomenology of mathematics in his Formal and Transcendental Logic (1929). In it Husserl seeks to provide descriptive foundations for mathematics. As sciences and mathematics are normative activities Husserl's attempt is also to describe the norms at work in these disciplines. The description shows that mathematics can be given in several different ways. The phenomenologist's task is to examine whether a given part of mathematics is genuine according to the norms that pertain to the approach in question. (...) The paper will then examine the intuitionistic, formalistic, and structural features of Husserl's philosophy of mathematics. (shrink)

L’observation de la constitution et de l’évolution du motif angélique au sein de l’œuvre de Jean Cocteau permet de mettre au jour un phénomène d’idolâtrie littéraire. L’ange, figure traditionnellement icônique – « image-relais » permettant la communication avec le divin –, se trouve ici subvertie, par un auteur qui en vient à investir dans sa propre création une aspiration au départ tournée vers l’au-delà. Le corps de l’ange capte le regard de son créateur, qui semble désormais condamné à une écriture (...) du ressassement, conditionnée par son hostilité à toute forme d’altérité. (shrink)

Many intellectuals wrote texts on the relations between Islam and science in the nineteenth‐century Ottoman Empire. These texts not only addressed the massive social and cultural changes the Empire was going through, but responded to European authors’ claims about the extent to which Islam was compatible with the modern world. Focusing on several texts written in the second half of the nineteenth century by the influential Muslim Ottoman authors Namik Kemal, Ahmed Midhat, and Şemseddin Sami, this article shows the influence (...) of these exigencies on arguments on Islam and science. In order to represent Islam as a respectable religion in harmony with science, these intellectuals defined a “pure Islam” that was a set of basic principles that could be found in the Qur'an. Rather than an embedded way of life, Islam in these texts was an objectified, delimitable entity that could be imagined as having relations with other entities, such as science. (shrink)

The title of my paper may look odd. If one is questioned “What is a dog?”, everyone could give a more or less valid answer. But to the question “What is not a dog?”, there can be innumerable answers which may be correct, but mostly quite unhelpful. Provisionally, what I intend to do under this title is to consider what we should not hold time to be. Through the history of ideas we meet various opinions and theories concerning what time (...) is. But it seems to me that most of them are not adequate enough, though each has its reason and often profound import as well. So I would like here to make a proposal for reconsidering how time appears in our life and thinking. (shrink)

Of the many problems of history and culture, the problem of correct understanding and interpretation of universal symbols, as well as their wise use, is very relevant. Since the subject of the study is not individual symbols, and not even symbolic systems, but the outlook component of the transformation of symbols, in the field of research is the interaction of culture and its creator - a person whose change of position leads to a change in the interpretation of symbols, and (...) therefore changes in the symbolism. The main task of the article is to understand the phenomenon of the symbol and its transformation in a single structure of history and culture. (shrink)

Quine's philosophy, early and late, proceeds from the natural standpoint, that is the explicit acceptance of science. This paper attempts to explain what this means and how it fits with his early criticism of reductive empiricism. A kind of horizontal reductionism remains, it is argued, which aims to explain the import of his thesis of the indeterminacy of translation. In the second part of this paper an argument is developed to cast doubt on the significance of this thesis. Because of (...) the possibility of languages containing grue-like predicates, the very idea of determinacy loses all significance. The natural standpoint cannot rescue determinacy and thus cannot provide support for indeterminacy. (shrink)

This paper concerns a puzzle about the logical form of expressions involving repeated `and's. Obvious attempts to solve the problem fail. It happens that a proper solution surprisingly requires the semantic notions of sampling and expression. I speculate that this may provide an alternative to conversational implicature.

LANGUAGE NOTE | Document text in English ; abstract also in Chinese. The cultural differences between East and West, as well as the differences in attitudes on bioethical issues, are hot topics in the international bioethics community. Scandals in biomedical research in recent years have further increased the prominence and importance of these issues. For example, high-profile cases involving head transplant experimentation and gene-edited babies have provoked international outrage, criticism, and condemnation. Among the responses, there have been reflections on the (...) issue of “why China?” Some researchers blame cultural differences, while others argue that there is a lack of rigorous research ethics oversight in the country. In “The Real Problem With Human Head Transplantation,” it is argued that China “is a country that has a history of taking positions on bioethical issues that diverge from most commonly accepted conceptions of medical and research ethics.” (Abstract taken from first paragraph of document) 當下一系列的生物醫學醜聞以及人們對其多元的反應，突顯了更深入的跨文化生命倫理研究的重要性，以加深多元文化和宗教的理解，促進長期共存和繁榮。作為對Tham文章的拓展，本文駁斥了跨文化生命倫理比較研究中將 中國文化和西方文化的簡單二元對立傳統，提出應警惕兩種錯誤傾向：沙文主義和種族中心主義傾向以及不可通約傾向。. (shrink)

Within contemporary epistemology, notions of intellectual virtue have come to fulfill a prominent role in attempts to provide an account of knowledge. Notions of such virtue can vary, and one particular aspect of this variance concerns how to construe the relationship between the intellectual virtues and particular epistemic ends. The goal of this article is to defend an instrumental connection between the intellectual virtues and the epistemic end of true belief. One type of skeptical argument that attempts to sever this (...) connection, a Cartesian Demon argument, is considered. This Cartesian Demon argument will be summarized, as well as three responses to it. The claim that truth-conduciveness is a tenable criterion for identifying the intellectual virtues is then defended. It is acknowledged that the possibility of a Cartesian Demon does initiate scepticism, but that this scepticism is directed toward identifying specific intellectual virtues and not toward the instrumental connection between intellectual virtue and true belief. (shrink)

Although smallpox was declared eradicated in 1980, there are fears that stocks of the virus manufactured for military purposes by the Soviet Union may have fallen into the hands of “rogue nations” or terrorists. Worries about bioterrorism have thus sparked debate about whether or not the smallpox vaccine, which can be dangerous, should be offered to the general public. Meaningful public debate on this issue requires expert information about the likelihood that the virus will in fact be used as a (...) weapon. Informed voluntary individual decision making, about whether to get vaccinated if vaccine is made available to the public, would similarly require appreciation of the likelihood of attack. Public deliberation and private deliberation thus both require briefing by the intelligence community. (shrink)