Gottfried Wilhelm Leibniz is the self-proclaimed inventor of the binary system and is considered as such by most historians of mathematics and/or mathematicians. Really though, we owe the groundwork of today’s computing not to Leibniz but to the Englishman Thomas Harriot and the Spaniard Juan Caramuel de Lobkowitz, whom Leibniz plagiarized. This plagiarism has been identified on the basis of several facts: Caramuel’s work on the binary system is earlier than Leibniz’s, Leibniz was acquainted—both directly and indirectly—with Caramuel’s work and (...) Leibniz had a natural tendency to plagiarize scientific works. (shrink)

Let T be a second-order arithmetical theory, Λ a well-order, λ < Λ and X ⊆ ℕ. We use $[\lambda |X]_T^{\rm{\Lambda }}\varphi$ as a formalization of “φ is provable from T and an oracle for the set X, using ω-rules of nesting depth at most λ”.For a set of formulas Γ, define predicative oracle reflection for T over Γ ) to be the schema that asserts that, if X ⊆ ℕ, Λ is a well-order and φ ∈ Γ, then$$\forall \,\lambda (...) < {\rm{\Lambda }}\,.$$In particular, define predicative oracle consistency ) as Pred–O–RFN{0=1}.Our main result is as follows. Let ATR0 be the second-order theory of Arithmetical Transfinite Recursion, ${\rm{RCA}}_0^{\rm{*}}$ be Weakened Recursive Comprehension and ACA be Arithmetical Comprehension with Full Induction. Then,$${\rm{ATR}}_0 \equiv {\rm{RCA}}_0^{\rm{*}} + {\rm{Pred - O - Cons\ }}\left \equiv {\rm{RCA}}_0^{\rm{*}} + \,{\rm{Pred - O - Cons\ }}\left \equiv {\rm{RCA}}_0^{\rm{*}} + \,{\rm{Pred - O - RFN}}\,_{{\bf{\Pi }}_2^1 } \left.$$We may even replace ${\rm{RCA}}_0^{\rm{*}}$ by the weaker ECA0, the second-order analogue of Elementary Arithmetic.Thus we characterize ATR0, a theory often considered to embody Predicative Reductionism, in terms of strong reflection and consistency principles. (shrink)

En el presente artículo se presenta una propuesta didáctica para tercer ciclo de educación primaria que se construye a partir de un Trabajo de Fin de Grado y que ha sido llevada a la práctica. La propuesta está relacionada con el aprendizaje de diferentes aspectos de las culturas griega, vikinga y egipcia. El objetivo central de este artículo es presentar una planificación didáctica para el aprendizaje de estas civilizaciones desde una perspectiva lúdica e innovadora en la cual se hace uso (...) de la realidad virtual y los videojuegos; incluyendo además los resultados más relevantes de su puesta en práctica. La metodología de la propuesta está basada en la gamificación y el aprendizaje basado en juegos (ABJ). La elección de esta metodología se sustenta en las facilidades que ofrecen tanto la expansión del desarrollo tecnológico como el uso de las aplicaciones (app) y videojuegos en la vida cotidiana de los estudiantes; apoyándose en estudios previos que muestran los beneficios del uso de estas tecnologías en enseñanza de las ciencias sociales y de la historia. La puesta en práctica se desarrolla a través de una secuencia de actividades que abarca varias sesiones y en las que, entre otras tareas, se hace uso de los videojuegos Assassin’s Creed: Discovery Tour, para tareas de exploración, y Minecraft Education Edition, para tareas de representación. En cuanto a los resultados de la puesta en práctica, la propuesta ha sido exitosa en su desarrollo, obteniéndose un alto grado de consecución de los objetivos didácticos propuestos y no encontrando dificultades graves durante el proceso de enseñanza-aprendizaje. (shrink)

Coaching is a systematic and goal-oriented one-on-one intervention by a coach aimed to guide clients in their professional and personal development. Previous research on coaching has demonstrated effects on a number of positive outcomes, including well-being and performance, yet little is known about the processes that underlie these outcomes, such as the type of questions coaches use. Here, we focus on three different types of coaching questions, and aim to uncover their immediate and sustained effects for affect, self-efficacy, and goal-directed (...) outcomes, using a between-subjects experiment. One hundred and eighty-three medical residents and PhD students from various medical centers and healthcare organizations in the Netherlands were recruited to participate in a self-coaching writing exercise, where they followed written instructions rather than interacting with a real coach. All participants were randomly allocated to one of three conditions: either one of two solution-focused coaching conditions or a problem-focused coaching condition. Self-report questionnaires were used to measure key outcomes of coaching, that is positive and negative affect, self-efficacy, goal orientation, action planning and goal attainment. Two follow-up measurements assessed if the effects of the self-coaching exercise led to problem-solving actions within an initial follow-up period of 14 days and a subsequent follow-up period of 10 days. Findings showed that participants experienced more positive affect, less negative affect, and higher approach goal orientation after the solution-focused coaching exercise compared to the problem-focused coaching exercise. In all conditions, goal attainment increased as a consequence of the self-coaching intervention. We discuss the implications of our findings for the science and practice of contemporary coaching. (shrink)

In the absence of effective judicial remediation mechanisms after business-related human rights violations, companies themselves are expected to establish remediation procedures for affected victims and communities. This is a challenge for both companies and victims since comprehensive company-based grievance mechanisms are currently missing. In this paper, we explore how companies can provide effective remediation after human rights violations. Accordingly, we critically assess two different approaches to conflict resolution, alternative dispute resolution and restorative justice, for their potential to provide dialogue-based, non-judicial (...) remediation. We argue that remedy through agreement-driven ADR mechanisms risks marginalizing the interests and concerns of victims and affected community members, particularly in weak institutional contexts. Hence, we develop a dialogue-driven framework for corporate remediation of human rights violations grounded on RJ principles. This restorative framework provides a comprehensive CGM that focuses on the harms and needs of victims and aims at restoring justice through restorative dialogue. Based on a prompt discovery and a thorough investigation of the grievance, companies should design and prepare the remediation process together with victims, offenders and affected community members. Through restorative dialogue with the affected parties about the circumstances and impacts of the wrongdoing, companies can repair the harm, regain legitimacy amongst stakeholders as well as transform their business practices to avoid future human rights violations. (shrink)

This collection of papers by prominent feminist thinkers advances the positive feminist project of remapping the moral by developing theory that acknowledges the diversity of women.

This paper provides an account of what it is to have faith in a proposition p, in both religious and mundane contexts. It is argued that faith in p doesn’t require adopting a degree of belief that isn’t supported by one’s evidence but rather it requires terminating one’s search for further evidence and acting on the supposition that p. It is then shown, by responding to a formal result due to I.J. Good, that doing so can be rational in a (...) number of circumstances. If expected utility theory is the correct account of practical rationality, then having faith can be both epistemically and practically rational if the costs associated with gathering further evidence or postponing the decision are high. If a more permissive framework is adopted, then having faith can be rational even when there are no costs associated with gathering further evidence. (shrink)

Between-subject variability in cognitive performance has been related to inter-individual differences in functional brain networks. Targeting the dorsal attention network we questioned whether resting-state functional connectivity within the DAN can predict individual performance in spatial attention tasks and whether there is short-term adaptation of DAN-FC in response to task engagement. Twenty-seven participants first underwent resting-state fMRI, they subsequently performed different tasks of spatial attention [including visual search ] and immediately afterwards received another rs-fMRI. Intra- and inter-hemispheric FC between core hubs (...) of the DAN, bilateral intraparietal sulcus and frontal eye field, was analyzed and compared between PRE and POST. Furthermore, we investigated rs-fMRI-behavior correlations between the DAN-FC in PRE/POST and task performance parameters. The absolute DAN-FC did not change from PRE to POST. However, different significant rs-fMRI-behavior correlations were revealed for intra-/inter-hemispheric connections in the PRE and POST run. The stronger the FC between left FEF and IPS before task engagement, the better was the learning effect in VS. And the faster the VS, the stronger was the FC between right FEF and IPS after task engagement. To conclude, DAN-FC relates to the individual performance in spatial attention tasks supporting the view of functional brain networks as priors for cognitive ability. Despite a high inter- and intra-individual stability of DAN-FC, the change of FC-behavior correlations after task performance possibly indicates task-related adaptation of the DAN, underlining that behavioral experiences may shape intrinsic brain activity. However, spontaneous state fluctuations of the DAN-FC over time cannot be fully ruled out as an alternative explanation. (shrink)

Very few scientists today question the fact that information, together with matter and energy, is one of the three constructs forming the ontology of the universe. However, there is still a long way to go before in order to establish the interrelations between information and energy and information and matter, as Einstein did between matter and energy. In this paper, after introducing the energy, matter, information model, which covers the three constructs and their relationships, we illustrate real examples—two qualitative and (...) two quantitative—of the interrelations between energy and information. This closes the open question with respect to the interrelationship between energy and information. (shrink)

This paper provides an account of what it is to have faith in a proposition p, in both religious and mundane contexts. It is argued that faith in p doesn’t require adopting a degree of belief that isn’t supported by one’s evidence but rather it requires terminating one’s search for further evidence and acting on the supposition that p. It is then shown, by responding to a formal result due to I.J. Good, that doing so can be rational in a (...) number of circumstances. If expected utility theory is the correct account of practical rationality, then having faith can be both epistemically and practically rational if the costs associated with gathering further evidence or postponing the decision are high. If a more permissive framework is adopted, then having faith can be rational even when there are no costs associated with gathering further evidence. (shrink)

Notable examples of macaronics, the insertion of foreign vocabulary into poetry, are attributed to the well-known eighth-century poet, Abū Nuwās, who experimented with mixing Persian in his Arabic poetry but whose motivation remains unclear. This article looks at a selection of his and other macaronic verses ranging from the seventh to tenth centuries and argues that Persian was inserted deliberately as a marker of a Persian identity, standing for the “foreign Other.” Far from being a sign of a pro-Persian shuʿūbī (...) sentiment, the employment of Persian only reinforces the established hierarchy of the two identities in that period. By the tenth century, however, this hierarchy is cleverly flipped on its head in a macaronic poem by the popular Iraqi poet, Ibn al-Ḥajjāj. While many of the examples are comic and even obscene in character, this article shows that the employment of Persian in Arabic poetry was a deliberate practice with serious and meaningful implications. (shrink)

Broadening access to both computational and educational resources is crit- ical to diffusing machine learning (ML) innovation. However, today, most ML resources and experts are siloed in a few countries and organizations. In this article, we describe our pedagogical approach to increasing access to applied ML through a massive open online course (MOOC) on Tiny Machine Learning (TinyML). We suggest that TinyML, applied ML on resource-constrained embedded devices, is an attractive means to widen access because TinyML leverages low-cost and globally (...) accessible hardware and encourages the development of complete, self-contained applications, from data collection to deployment. To this end, a collaboration between academia and industry produced a four part MOOC that provides application-oriented instruction on how to develop solutions using TinyML. The series is openly available on the edX MOOC platform, has no prerequisites beyond basic programming, and is designed for global learners from a variety of backgrounds. It introduces real-world applications, ML algorithms, data-set engineering, and the ethi- cal considerations of these technologies through hands-on programming and deployment of TinyML applications in both the cloud and on their own microcontrollers. To facili- tate continued learning, community building, and collaboration beyond the courses, we launched a standalone website, a forum, a chat, and an optional course-project com- petition. We also open-sourced the course materials, hoping they will inspire the next generation of ML practitioners and educators and further broaden access to cutting-edge ML technologies. (shrink)

This book's importance is derived from three sources: careful conceptualization of teacher induction from historical, methodological, and international perspectives; systematic reviews of research literature relevant to various aspects of teacher induction including its social, cultural, and political contexts, program components and forms, and the range of its effects; substantial empirical studies on the important issues of teacher induction with different kinds of methodologies that exemplify future directions and approaches to the research in teacher induction.

This paper presents and defends a reappraisal of J.L. Austin’s infamous analogy between saying ‘I know’ and ‘I promise’ in ‘Other Minds.’ The paper has four sections. In §1, I contend that the standard reading of Austin’s analogy is a strawman that distorts the terms of the analogy and superimposes philosophical commitments that Austin was precisely trying to combat. In §§2 and 3, I argue that to understand the point of the analogy we must contextualize ‘Other Minds’ as a response (...) to logical positivism. I recap A.J. Ayer’s influential account of positivism, before arguing that ‘Other Minds’ and its centrepiece analogy should be read as an attack on Austin’s colleague’s organizing positivist assumptions – specifically, descriptivism and the fact/value dichotomy that it props up. My main thesis is that Austin sought to show that epistemic discourse is imbricated with ethical commitments. This reading is anticipated by Cavell, to whom I turn in §4. I bring together insights from across Cavell’s oeuvre to develop this reading of Austin’s analogy and finally to critique certain aspects of it. This paper adds to the recent resurgence in Austin scholarship and aims to get clear the philosophical and historical stakes of his historically maligned analogy. (shrink)

Erick J. Ramirez, Miles Elliott and Per‑Erik Milam (2021) have recently claimed that using Virtual Reality (VR) as an educational nudge to promote empathy is unethical. These authors argue that the influence exerted on the participant through virtual simulation is based on the deception of making them believe that they are someone else when this is impossible. This makes the use of VR for empathy enhancement a manipulative strategy in itself. In this article, we show that Ramirez et al.’s ethical (...) rejection of empathy enhancement through VR is based on confusion. First, we show that this misunderstanding stems from the conception of empathy-enhancing simulations solely as failed attempts at “being someone else,” along with ignoring the crucial difference between the psychological perspective-taking processes of imagine-other and imagine-self. Then, having overcome that misconception, we argue that the ethical misgivings about the use of VR to promote empathy should disappear and that these projects have greater potential for behavioural change than purely sympathy-focused interventions. (shrink)

From the most prominent thinkers in Latin American philosophy, literature, politics, and social science comes a challenge to conventional theories of globalization. The contributors to this volume imagine a discourse in which revolution requires no temporalized march of progress or takeovers of state power but instead aims at local control and the material conditions for human dignity.

What is faith? Lara Buchak has done as much as anyone recently to answer our question in a sensible and instructive fashion. As it turns out, her writings reveal two theories of faith, an early one and a later one (or, if you like, two versions of the same theory). In what follows, we aim to do three things. First, we will state and assess Buchak’s early theory, highlighting both its good-making and bad-making features. Second, we will do the (...) same for her later theory, noting improvements on the early one. Third, we will mark various choice points in theorizing about faith, and we will argue for specific choices at those points, culminating in what we regard as a better, alternative theory of faith. Our critical aims, therefore, are ultimately constructive. By theorizing about faith with Lara Buchak, we aim to contribute to our common understanding of what faith is. (shrink)

Literature and Character Education in Universities presents the potential of literary and philosophical texts for character education in modern universities. The book engages with theoretical and practical aspects of character development in higher education, combining conceptual discussion of the role of literature in character education with applied case studies from university classrooms. Character education within the academic context of the university presents unique challenges and opportunities. Literature and Character Education in Universities presents perspectives from academics in Europe, the USA and (...) Asia, offering unique insights into the ways that engaged reading and discussion of core texts can promote the development of intellectual and moral virtues. Chapters draw on a wide range of texts from Confucius' Analects to J. D. Salinger's The Catcher in the Rye, focusing on themes such as truthfulness, self-knowledge, prudence, tolerance, friendship, and humility. Literature and Character Education in Universities will be of real use to researchers, academics and postgraduates in the fields of higher education, philosophy, and literature. It should be essential reading for university educators interested in character development and advocates of literary education in modern universities. (shrink)

By a theorem of R. Kaye, J. Paris and C. Dimitracopoulos, the class of the Πn+1-sentences true in the standard model is the only consistent Πn+1-theory which extends the scheme of induction for parameter free Πn+1-formulas. Motivated by this result, we present a systematic study of extensions of bounded quantifier complexity of fragments of first-order Peano Arithmetic. Here, we improve that result and show that this property describes a general phenomenon valid for parameter free schemes. As a consequence, we obtain (...) results on the quantifier complexity, finite axiomatizability and relative strength of schemes for Δn+1-formulas. (shrink)

The volume brings together contributions in the spirit embodied by Marek J. Siemek and Jakub Kloc-Konkołowicz, two Warsaw philosophers truly devoted to Classical German Philosophy. They were simultaneously in a relationship between thinker and adept, and thinker and thinker. They both taught philosophy, with a strong emphasis on classic German philosophy, at Warsaw University. Under the theme “Ethical Theory in Classic German Philosophy Then and Now,” students and companions continue their discussions with both of them.

A well known theorem proved by J. Paris and H. Friedman states that BΣn +1 is a Πn +2-conservative extension of IΣn . In this paper, as a continuation of our previous work on collection schemes for Δn +1-formulas , we study a general version of this theorem and characterize theories T such that T + BΣn +1 is a Πn +2-conservative extension of T . We prove that this conservativeness property is equivalent to a model-theoretic property relating Πn-envelopes and (...) Πn-indicators for T . The analysis of Σn +1-collection we develop here is also applied to Σn +1-induction using Parsons' conservativeness theorem instead of Friedman-Paris' theorem.As a corollary, our work provides new model-theoretic proofs of two theorems of R. Kaye, J. Paris and C. Dimitracopoulos : BΣn +1 and IΣn +1 are Σn +3-conservative extensions of their parameter free versions, BΣ–n +1 and IΣ–n +1. (shrink)

This collection is the first volume published by Cambridge University Press devoted exclusively to Schelling scholarship. It contains eleven essays on diverse topics in Schelling’s philosophy, covering the entirety of his philosophical development, but mostly focusing on writings up to 1815. A number of the contributors are well-established scholars best known for their work on other thinkers in German Idealism. The volume thus offers readings of Schelling that are especially sensitive to his relationship to other figures in classical German philosophy. (...) Perhaps the richest contribution in the volume is Manfred Frank’s essay on Schelling’s theory of identity, which covers the theory’s historical sources, its application to the mind-body problem, and Schelling’s disagreement with Hegel. In any case, the wide historical range of these essays and the diversity of their topics offer an excellent overview of Schelling’s philosophical development. (shrink)

María Pía Lara notes, in “Narrating Evil: A Postmetaphysical Theory,” that “There are thousands of books on evil, yet not one of them presents a satisfying theory of it.” Her statement from the last essay of this book sums up this anthology as well. Perhaps it is the nature of the topic or the current state of discussion in this field of study. In any case, Rethinking Evil must ultimately be added to those thousands of others books. This certainly (...) does not mean that the book is not worth reading. It is important to point out that the book does accomplish the editor’s stated goal “to open up a new space for the discussion of the problem of evil.” As a whole, the anthology adds to the body of literature in this field of study and strongly encourages scholars to focus on the topic of evil. Those readers looking for the satisfactory theory that is omitted in other books will not find that here. (shrink)

L'articolo prende spunto dall'evoluzione di alcuni paradigmi teorici legati alla proposta di Walter J. Ong relativi alle variazioni delle modalitÀ di pensiero e delle fasi dell'apprendimento nel passaggio a una cultura della seconda oralitÀ. Si propongono alcuni esempi delle variazioni degli stili attentivi e delle abilitÀ mnestiche negli adolescenti che frequentano assiduamente ed esclusivamente le nuove tecnologie rappresentate dai videogame e da Internet. Infine si offrono esempi di nuove modalitÀ didattiche e approcci educativi innovativi che prendono in considerazione le variazioni (...) delle intelligenze dei nativi digitali, con particolare riferimento all'esperienza del progetto LARA e a quella dell'applicazione del metodo Feuerstein. (shrink)

In this essay I propose to offer some observations in due course on how Christian thought and practice in general might profit from a central theme in the theology of Rāmānuja, a Tamil Vaisnava Brahmin whose traditional date straddles the eleventh and twelfth centuries of the Christian era. The central theme I have in mind is expressed in Rāmānuja's view that the ‘world’ is the ‘body’ of Brahman or God. We shall go on to explain what this means, but let (...) me state first that my overall aim is to further inter-religious understanding, especially between Christian and Hindu points of view. In professing a concern for inter-religious dialogue I know that I reflect a longstanding interest of Professor H. D. Lewis. I shall seek to show that the Christian religion can profit both from the content and the method of Rāmānuja's body-of-God theology. To this end this essay is divided into two sections. Section I is the longer: it contains an analysis of what Rāmānuja did mean by his body-of-God theme – doubtless unfamiliar ground for most of the readers of this essay – and serves as a propaedeutic for what follows in section 2. In section 2 I shall attempt to ‘extrapolate’ Rāmānuja's thinking into a Christian context, with dialogue in mind. Section 2 cannot be appreciated for the promise I hope it holds out without the detail of the first section. (shrink)

My object in this paper is to suggest a few reflections on some themes in Bentham's work which others as well as I have noted, without perhaps developing them as fully as might with advantage be done. There will be nothing like full development in the limited compass of what is said here, but what is said may at least indicate possible directions for further exploration. The greater part of the paper will be concerned with the notion of natural authority; (...) but I want to begin by taking a broader, though no doubt rather superficial, view of the role in Bentham's thinking of the concepts of ‘nature’ and ‘the natural’. (shrink)

The objective of this work is to establish a relationship between the cutting time in rocks, determining a speed and the point load strength index test, Is, to characterize the rock in terms of resistance and avoid sending samples to laboratories. As a first stage, on andesite samples, 5 x 5 x 10 cm test tubes were made. After the elaboration they were subjected to cutting, using an electric floor cutter and the time was evaluated. This cut was made in (...) a transversal way and two parts were obtained, one of them with dimensions 5 x 5 x 5 cm, approximately. In a third stage, the point load strength test was carried out in a press built for this purpose. Finally, the cutting speeds were correlated with the point load test values and only when rock samples do not pigeonhole on the proposed relationship, send them to the laboratory. Keywords: Mining fortification, uniaxial compressive strength, rock cutting, point load strength test index. References [1]P. Feijoo, R. Aucay, D. Ordoñez, "Aplicación del esclerómetro para la determinación de resistencia a compresión de rocas", presentado en el IV Congreso Internacional de Minería y Metalúrgia, Varadero, Cuba, 2018. [2]P. Feijoo y M. Román, «Correlación entre la Deformación y la Resistencia a la Compresión de rocas», uct, vol. 23, n.º 91, p. 6, may. 2019. [3]P. Feijoo, A. Bravo, N. Escandón, "Aplicación “UDAFORMIN” para la determinación del tipo de fortificación minera", presentado en el XII Congreso Iberoamericano de Computación para el Desarrollo, San Salvador, El Salvador, 2019. [4]P. Feijoo y C. Iñiguez, «Corte en las Rocas y su Relación con la Resistencia a Comprensión Simple», RISTI, n.º E 30, p. 59-67, jun. 2020. [5]P. Feijoo y J. Padrón, «La Resistividad de Rocas y su Relación con la Resistencia a Comprensión Simple en Mina», UCT, vol. 24, n.º 99, pp. 61-67, abr. 2020. [6]M. González. El terreno. Ediciones UPC. Barcelona. España, 2001. [7]E. Besoain. Mineralogía de Suelos. Turrialba: Instituto Interamericano de Ciencias Agrícolas de la OEA, 1970. [8]P. Feijoo, A. Flores, B. Feijoo, "The Concept of the Granulometric Area and Its Relation with the Resistance to the Simple Compression of Rocks", presentado en la 7th International Engineering, Sciences and Technology Conference, Panamá, Panamá, 2019, pp. 52-56, doi: 10.1109/IESTEC46403.2019.00018. [9]F. Blyth. Geología para Ingenieros. Cecsa. México D. F. México, 2003. [10] E. Tarbuck & F. Lutgens. Ciencias de la Tierra: Una introducción a la Geología Física. Pearson. Madrid. España, 2005. [11]L. Suarez del Rio, A. Rodríguez, L. Calleja, V. Ruiz de Argandoña, «El corte de rocas ornamentales con discos diamantados: influencia de los factores propios del sistema de corte», CSIC, vol. 48, n.º 250, pp. 53-59, abr-mayjun 1998. [12]Universidad Politécnica de Madrid. Explotaciones de Roca Ornamental. Diseño de explotaciones y selección de maquinaria y equipos. UPM. Madrid. España, 2007. [13]Catalog, Covington,. LAPIDARY & GLASS MACHINERY, USA. Retrieved from https://covington-engineering.com/content/pdf/Covington-Catalog.pdf. [14]D. Burbano, T. García, «Estimación empírica de la resistencia a compresión simple a partir del ensayo de carga puntual en rocas anisótropas », FIGEMPA, vol.1, n.º 2, pp. 13-16, dic. 2016. [15]P. Ramírez, L. de la Cuadra, R. Lain, E. Grigalbo. Mecánica de rocas aplicada a la minería metálica subterránea. Instituto Geológico Minero. Madrid. España, 1984. [16]P. Cordero, "Manual de prácticas de laboratorio de Mecánica de Rocas " tesis, Universidad Nacional Autónoma de México, México D.F., México, 2019. [17]L. González de Vallejo, M. Ferrer. Manual de campo para la descripción y caracterización de macizos rocosos en afloramientos. Instituto Geológico y Minero de España. Madrid. España, 2007. [18]P. Pohjanpera, T. Wanne, E., Johansson. Point Load Test Results From Olkiluoto Area Borehole Cores. Posiva. Finlandia, 2005. [19]P. Ramírez, L. Alejano. Mecánica de rocas: fundamentos e ingeniería de taludes. Universidad Politécnica de Madrid. Madrid. España, 2004. [20]M. Navarrete, W. Martínez, E. Alonso, C. Lara, A. Bedolla, H. Chávez, D. Delgado, J. Arteaga. «Caracterización de propiedades físico-mecánicas de rocas ígneas utilizadas en obras de infraestructura», ALCONPANT, vol. 3, n.º 2, pp. 133-143, ago. 2013. [21]P. Feijoo, "Manual de mecánica de rocas y estabilidad de túneles y taludes" tesis, Universidad del Azuay, Cuenca, Ecuador, 1997. (shrink)