A pO -algebra $${(L; f, \, ^{\star})}$$ is an algebra in which ( L ; f ) is an Ockham algebra, $${(L; \, ^{\star})}$$ is a p -algebra, and the unary operations f and $${^{\star}}$$ commute. Here we consider the endomorphism monoid of such an algebra. If $${(L; f, \, ^{\star})}$$ is a subdirectly irreducible pK 1,1 - algebra then every endomorphism $${\vartheta}$$ is a monomorphism or $${\vartheta^3 = \vartheta}$$ . When L is finite the endomorphism monoid of L is (...) regular, and we determine precisely when it is a Clifford monoid. (shrink)

Let (L; f) be a finite simple Ockham algebra and let (X;g) be its dual space. We first prove that every connected component of X is either a singleton or a generalised crown (i.e. an ordered set that is connected, has length 1, and all vertices of which have the same degree). The representation of a generalised crown by a square (0,1)-matrix in which all line sums are equal is used throughout, and a complete description of X, including the number (...) of connected components and the degree of the vertices, is given. We then examine the converse problem of when a generalised crown can be made into a connected component of (X; g). We also determine the number of non-isomorphic finite simple Ockham algebras that belong properly to a given subvariety P 2n,0. Finally, we show that the number of fixed points of (L; f) is 0,1, or 2 according to the nature of X. (shrink)

Deep neural networks (DNNs) have had extraordinary successes in classifying photographic images of objects and are often described as the best models of biological vision. This conclusion is largely based on three sets of findings: (1) DNNs are more accurate than any other model in classifying images taken from various datasets, (2) DNNs do the best job in predicting the pattern of human errors in classifying objects taken from various behavioral datasets, and (3) DNNs do the best job in predicting (...) brain signals in response to images taken from various brain datasets (e.g., single cell responses or fMRI data). However, these behavioral and brain datasets do not test hypotheses regarding what features are contributing to good predictions and we show that the predictions may be mediated by DNNs that share little overlap with biological vision. More problematically, we show that DNNs account for almost no results from psychological research. This contradicts the common claim that DNNs are good, let alone the best, models of human object recognition. We argue that theorists interested in developing biologically plausible models of human vision need to direct their attention to explaining psychological findings. More generally, theorists need to build models that explain the results of experiments that manipulate independent variables designed to test hypotheses rather than compete on making the best predictions. We conclude by briefly summarizing various promising modeling approaches that focus on psychological data. (shrink)

On several key issues we agree with the commentators. Perhaps most importantly, everyone seems to agree that psychology has an important role to play in building better models of human vision, and (most) everyone agrees (including us) that deep neural networks (DNNs) will play an important role in modelling human vision going forward. But there are also disagreements about what models are for, how DNN–human correspondences should be evaluated, the value of alternative modelling approaches, and impact of marketing hype in (...) the literature. In our view, these latter issues are contributing to many unjustified claims regarding DNN–human correspondences in vision and other domains of cognition. We explore all these issues in this response. (shrink)

This work presents a proposal for the characterization of the UnconfinedCompressive Strength test, through a series of operations that can be carried outwithout inconvenience in the field. Initially, fresh rock samples are obtained from outcropsin the area and specimens of specific dimensions are made. After the test specimenelaboration phase, crushing and granulometric classification tests are carried out witha set of specimens and in parallel with a second group, UCS tests are carried out. With theresults, the rock is characterized by graphing (...) granulometric curves and in this graph theareas of fine granulometry are focused, inserting in these areas, the average value of UCS,with which it can be identified and determined when it is really necessary and It is inevitableto send rock samples to laboratories, thus saving time and money for the mining project. Keywords: compression, crushing, granulometry, rock. References [1] F. Blyth and M. de Freitas. Geología para Ingenieros. México: CEGSA, 2003. [2] F. Escolano and A. Mazariegos de la Serna. Guía de reconocimiento de rocas en Ingeniería Civil. España: Editorial Garceta, Escuela Técnica Superior de Ingeniería Civil, Universidad Politécnica de Madrid, 2014. [3] G. Stefano and J. Segovia. Notas del curso de Arte Minero I. Ecuador: Universidad del Azuay, 1991. [4] A. Maistri. Guía al Curso de Tratamiento de Minerales y a las Prácticas de Laboratorio. Ecuador: Universidad del Azuay, 1993. [5] O. Bustamante. Conminución de Minerales Trituración y Molienda. Colombia: Instituto de Minerales CIMEX, Universidad Nacional de Colombia-Sede Medellín, 2006. [6] E. Feijoo, C. Flores and B. Feijoo, "The Concept of the Granulometric Area and Its Relation with the Resistance to theSimple Compression of Rocks," 2019 7th International Engineering, Sciences and Technology Conference, Panama,Panama, 2019, pp. 52-56. [7] E. Feijoo and C. Iñiguez, “Corte en rocas y su relación con la resistencia a compresión simple”, RISTI, N.o E 30, pp. 59-67,junio 2020. [8] M. Galván. Mecánica de Rocas. Correlación entre la Resistencia a Carga Puntual y la Resistencia a Compresión Simple. Colombia: Universidad del Valle, 2015. [9] W. Marín. Evaluación de parámetros materiales de fractura en roca intacta. Colombia: Universidad Nacional de Colombiasede Medellín, 2017. [10]E. Feijoo and J. Padrón, “La resistividad de rocas y su relación con la resistencia a compresión simple en mina”, UCT, vol. 24, Núm. 99, pp. 61-67, abril 2020. (shrink)

Selected as a Financial Times Best Book of 2013Governments today in both Europe and the United States have succeeded in casting government spending as reckless wastefulness that has made the economy worse. In contrast, they have advanced a policy of draconian budget cuts--austerity--to solve the financial crisis. We are told that we have all lived beyond our means and now need to tighten our belts. This view conveniently forgets where all that debt came from. Not from an orgy of government (...) spending, but as the direct result of bailing out, recapitalizing, and adding liquidity to the broken banking system. Through these actions private debt was rechristened as government debt while those responsible for generating it walked away scot free, placing the blame on the state, and the burden on the taxpayer. That burden now takes the form of a global turn to austerity, the policy of reducing domestic wages and prices to restore competitiveness and balance the budget. The problem, according to political economist Mark Blyth, is that austerity is a very dangerous idea. First of all, it doesn't work. As the past four years and countless historical examples from the last 100 years show, while it makes sense for any one state to try and cut its way to growth, it simply cannot work when all states try it simultaneously: all we do is shrink the economy. In the worst case, austerity policies worsened the Great Depression and created the conditions for seizures of power by the forces responsible for the Second World War: the Nazis and the Japanese military establishment. As Blyth amply demonstrates, the arguments for austerity are tenuous and the evidence thin. Rather than expanding growth and opportunity, the repeated revival of this dead economic idea has almost always led to low growth along with increases in wealth and income inequality. Austerity demolishes the conventional wisdom, marshaling an army of facts to demand that we austerity for what it is, and what it costs us. (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)

Healthcare environments continue to prove discriminatory and marginalizing towards patients and healthcare workers themselves, which contributes to inequitable health outcomes across lines of socially constructed difference. This content and discourse analysis of nursing identity scholarship asks whether there is a connection between nursing identity and oppressive behaviour by examining the construction of nursing identity and the foundational discourses, sometimes in absentia, that support such a construction. Bourdieu's concepts of social fields and Audre Lorde's concept of the master's house are applied (...) as a framework towards understanding the constructs of power and status in healthcare. The analysis identifies a gap in nursing identity literature where social constructs of difference are not considered. In the reviewed literature, nursing identity has been co‐opted by the professionalization project in effort to stabilize a conceptualization of nursing's contribution to healthcare towards gaining professional and societal status. This leads to a monolithic, apolitical representation of nursing identity that erases difference, denies historical influence, universalizes nursing work and further marginalizes marginalized identities. The oppressive and hegemonic nature of a universal nursing identity may contribute to a lack of disciplinary reflexivity about the ongoing influences of foundational discursive constructs of gender, epistemology, power and professional status. (shrink)

In _Aristotle’s Ever-turning World in _Physics _8_ Blyth analyses the reasoning in Aristotle’s explanation of cosmic movement, with detailed evaluation of ancient and modern commentary on this central text in the history of ancient and medieval philosophy and science.

Reductive representationalism offers a promising route to an intelligible account of phenomenal consciousness. However, reductive representationalist accounts entail phenomenal externalism. Here I develop a new argument against phenomenal externalism and, by extension, standard reductive representationalism. I argue that the external determination of ‘here-and-now’ phenomenal properties entails an irreconcilable unintelligibility at the heart of reductive representationalist accounts. As reductive representationalism is motivated by the promise of rendering phenomenal experience intelligible, this criticism is fatal.

Book reviewed in this article: What Does It Mean to Grow Old? Reflections from the Humanities. By Thomas R. Cole and Sally Gadow Our Aging Society: Paradox and Promise. Alan Pifer and Lydia Bronte.

This article argues for the importance of studying life after mental illness. A significant proportion of people who experience mental illness recover, but the experience continues to affect their lives. Historical examination of the birth of mental after-care through the Mental After-Care Association (MACA) highlights the challenges faced by those who were discharged recovered from English and Welsh lunatic asylums between 1879 and 1928. This research demonstrates the relationship between ideas regarding psychiatric recovery and citizenship. Throughout the period, certification of (...) insanity for institutional treatment stripped patients of the status and rights of citizenship. Discharge on account of recovery restored a patient's legal access to citizenship, yet suspicions about their right and ability to particate in society lingered. The MACA designed after-care to facilitate restoration to full citizenship. The MACA was a product of the active citizenship movement, according to which, one's right to identify as a citizen depended on the performance of certain duties to the community. These duties varied according to socio-economic position and sex, meaning that each individual was prescribed a gendered personal citizenship role. MACA personnel saw their endeavours as part of their own citizenship roles, and designed their treatments accordingly. The MACA used a patient's assumption of a citizenship role to indicate recovery, and believed that supporting the performance of that role had mentally healing effects for patients who had been discharged recovered. MACA workers thus imbued the psychiatric innovation of after-care with the liberal political and social values of active citizenship. (shrink)

This essay is a short response to comments made by Cannon, Meeks, and Yu to my articles “Beyond Subjectivism,” published in this special edition of Tradition and Discovery (34:1), and “Connected andSeparate Knowing: A Marriage of Two Minds,” published in Knowledge, Difference, and Power, edited by Nancy Goldberger, et al., focusing on convergences between my work and the ideas of Michael Polanyi.

We identify the \-ideals of a distributive demi-pseudocomplemented algebra L as the kernels of the boolean congruences on L, and show that they form a complete Heyting algebra which is isomorphic to the interval \ of the congruence lattice of L where G is the Glivenko congruence. We also show that the notions of maximal \-ideal, prime \-ideal, and falsity ideal coincide.

Literature on racism, anti‐racism, whiteness, nursing education and nurse educators was reviewed and analysed for the development of race consciousness and application of anti‐racist pedagogy. The literature describes an oppressive educational climate for non‐white identifying people, a curriculum that does not attend to the social construction of difference, and a nursing culture that is not consciously situated in a broader sociopolitical context. A particular focus on studies of nurse educators demonstrates a stark need for personal and professional development towards effectively (...) delivering anti‐racist pedagogy and a deconstruction of white normativity and dominance amongst white faculty. The protection and reproduction of white privilege is identified through the scholarship itself through a lack of racial analysis, an externalization of the root of oppression and non‐specific study measures and outcomes. The persistence and pervasiveness of white dominance in nursing and the lack of anti‐racist competence in white educators, particularly, merits a shift in anti‐racist efforts away from short‐term skill acquisition initiatives towards the deconstruction of socialized white supremacy and enactments of white privilege in nurse educators themselves. (shrink)

(1981). From individuality to character: The Herbartian sociology applied to education. British Journal of Educational Studies: Vol. 29, No. 1, pp. 69-79.

We investigate the class of those algebras in which is a de Morgan algebra, is a quasi-Stone algebra, and the operations \ and \ are linked by the identity x**º = x*º*. We show that such an algebra is subdirectly irreducible if and only if its congruence lattice is either a 2-element chain or a 3-element chain. In particular, there are precisely eight non-isomorphic subdirectly irreducible Stone de Morgan algebras.

(1982). Response and autonomy in the study of education: A personal account of three decades. British Journal of Educational Studies: Vol. 30, No. 1, pp. 7-17.

In this essay on epistemological development in college students, I argue that “subjectivism” (a.k.a. “multiplism;” often identified in female undergraduates) should be understood and treated not as amanifestation of a primitive, irrational notion of knowing that must be exterminated and replaced by the more impersonal, detached, objective procedures embodied in scientific method and critical thinking. Rather, it should be regarded as a point of departure for moving into more reflective modes of thought when approached via, and encouraged into, the more (...) personal, empathic procedure made known in Women’s Ways of Knowing as “connected knowing.” Along the way, I develop further the difference between “connected knowing” and “separate knowing” (the latter being the dominant academic paradigm of knowing), bringing out how connected knowing is an important and at times indispensable complement to separate knowing in achieving an objectivity integrated with subjectivity. (shrink)

For many people, open-air preaching is associated with a particularly limited understanding of the nature of the event. In part this is related to the fact that open-air preaching has received relatively little serious academic study. From a variety of sources, however, it is possible to piece together something of a critically analytic sketch of the practice. This sketch demonstrates that not only can open-air preaching claim longevity but that in turn it is a practice with considerable diversity as open-air (...) preachers seek to make meaning through their gathering and encounter with audiences. (shrink)

In the present essay, I explore some ways in which Polanyi’s concepts can be applied to enrich our understanding of epistemological development and the educational practices that seem to facilitate orsuppress it. Among the concepts discussed are Polanyi’s notion of uncertainty, combined with confidence as driving intellectual activity; the role of conviviality in the collaborative construction of knowledge,· the act of discovery as beginning with a problem that obsesses the thinker and proceeding through the integration of (often tacit) fragments into (...) a coherent whole; the notion of personal knowledge and commitment as transcending the disjunction between subjective and objective; apprenticeship as a personal relationship between a learner and a more sophisticated master, and most important, the assertion that beliefis prior to doubt. Thus, in terms ofthe concepts my colleagues and I have developed, “connected knowing” (a personal approach) is not simply equal to “separate knowing” (a detached, impersonal mode) as a procedure for arriving at knowledge, but is prior to it, “making meaning” being a necessary prerequisite to testing the validity ofa position. Drawing on interview data and memoirs of academic experiences, I argue that because these priorities are often reversed in educational practice, students learn to delete their personal responses from their essays in order to meet what they perceive as the utterly objective standards of the academy. When educators “endorse” uncertainty, students are encouraged to engage in the collaborative making of meaning and the pursuit of problems of personal importance. (shrink)