A precise velocity model is necessary to obtain reliable locations of microseismic events, which provide information about the effectiveness of the hydraulic stimulation. Seismic anisotropy plays an important role in microseismic event location by imposing the dependency between wave velocities and its propagation direction. Building an anisotropic velocity model that accounts for that effect allows for more accurate location of microseismic events. We have used downhole microseismic records from a pilot hydraulic fracturing experiment in Lower-Paleozoic shale gas play in the (...) Baltic Basin, Northern Poland, to obtain accurate microseismic events locations. We have developed a workflow for a vertical transverse isotropy velocity model construction when facing a challenging absence of horizontally polarized S-waves in perforation shot data, which carry information about Thomsen’s [Formula: see text] parameter and provide valuable constraints for locating microseismic events. We extract effective [Formula: see text], [Formula: see text] and [Formula: see text], [Formula: see text] for each layer from the P- and SV-wave arrivals of perforation shots, whereas the unresolved [Formula: see text] is retrieved afterward from the SH-SV-wave delay time of selected microseismic events. An inverted velocity model provides more reliable location of microseismic events, which then becomes an essential input for evaluating the hydraulic stimulation job effectiveness in the geomechanical context. We evaluate the influence of the preexisting fracture sets and obliquity between the borehole trajectory and principal horizontal stress direction on the hydraulic treatment performance. The fracturing fluid migrates to previously fractured zones, while the growth of the microseismic volume in consecutive stages is caused by increased penetration of the above-lying lithologic formations. (shrink)

Jacek Urbaniec: Platonism in the philosophy of mathematics does not necessarily imply that there are links between the temporal physical world and the eternal world of mathematics..

The purpose of the paper is to rethink the role of actuality in the branching model of possibilities. We investigate the idea that the model should be enriched with an additional factor—the so-called Thin Red Line—which is supposed to represent the single possible course of events that gets actualized in time. We believe that this idea was often misconceived which prompted some unfortunate reactions. On the one hand, it suggested problematic semantic models of future tense and and on the other, (...) it provoked questionable lines of criticism. We reassess the debate and point to potential pitfalls, focusing on the semantic dimension of the Thin Red Line theory. Our agenda transcends the semantics, however. We conclude that semantic considerations do not threaten the Thin Red Line theory and that the proper debate should be carried in the domain of metaphysics. (shrink)

In this paper, we draw on insights from theories in the management and corporate governance literature to develop a theoretical model that makes explicit the links between a firm’s corporate social responsibility related board attributes, its board CSR strategy, and its environmental and social performance. We then test the model using structural equation modeling approach. We find that the greater the CSR orientation of the board, the more proactive and comprehensive the firm’s CSR strategy, and the higher its environmental and (...) social performance. Moreover, we find this link to be endogenous and self-reinforcing, with superior CSR performers tending to further strengthen their board CSR orientation. This result while positive is also suggestive of the widening of the gap between the leads and laggards in CSR. Therefore, the question arises as to how ‘leaders’ are using their superior CSR competencies seen by many scholars as a source of corporate competitive advantage. Stakeholders of corporations therefore need to be cognizant of this aspect of CSR when evaluating a firm’s CSR activities. Policy makers also need to be cognizant of these concerns when designing regulation in this field. (shrink)

There is a long-standing disagreement among Branching-Time theorists. Even though they all believe that the branching representation accurately grasps the idea that the future, contrary to the past, is open, they argue whether this representation is compatible with the claim that one among many possible futures is distinguished—the single future that will come to be. This disagreement is paralleled in an argument about the bivalence of future contingents. The single, privileged future is often called the Thin Red Line. I reconstruct (...) the history of the arguments for and against this idea. Then, I propose my own version of the Thin Red Line theory which is immune to the major objections found in the literature. I argue that the semantic disagreement is grounded in distinct metaphysical presuppositions. My solution is expressed in a conceptual framework proposed by John MacFarlane, who distinguishes semantics from postsemantics. I extend his distinction and introduce a new notion of presemantics to elucidate my idea. (shrink)

Let J be any proper ideal of subsets of the real line R which contains all finite subsets of R. We define an ideal J * ∣B as follows: X ∈ J * ∣B if there exists a Borel set $B \subset R \times R$ such that $X \subset B$ and for any x ∈ R we have $\{y \in R: \langle x,y\rangle \in B\} \in \mathscr{J}$ . We show that there exists a family $\mathscr{A} \subset \mathscr{J}^\ast\mid\mathscr{B}$ of power ω (...) 1 such that $\bigcup\mathscr{A} \not\in \mathscr{J}^\ast\mid\mathscr{B}$ . In the last section we investigate properties of ideals of Lebesgue measure zero sets and meager sets in Cohen extensions of models of set theory. (shrink)

We investigate the semantics of historical counterfactuals in indeterministic contexts. We claim that "plain" and "necessitated" counterfactuals differ in meaning. To substantiate this claim, we propose a new semantic treatment of historical counterfactuals in the Branching Time framework. We supplement our semantics with supervaluationist postsemantics, thanks to which we can explain away the intuitions which seem to talk in favor of the identification of "would" with "would necessarily".

Zsfassung in engl. Sprache u.d.T.: On the word Be.

Contents: Preface. Introduction: Philosophy and Precision. Part I. Being and Essence. 1. On What Seems Not to Be. 2. On the Controversy about Universals. 3. On Forms of Objects. 4. On Good, Necessity and Sufficiency. 5. On Essence. Part II. Truth and Nonsense. 6. On the Definition and Criteria of Truth. 7. On Linguistic Categories. 8. On Questions. 9. On Semiotic Function of Conditionals. 10. On Nonsense. Part III. Understanding and Silence. 11. On Misunderstandings about Understanding. 12. On Definition, Explication, (...) and Paraphrase. 13. On Reasoning. 14. On Simplicity. 15. On Silence. Conclusion: Science and Creation. References. Index of Names. Index of Subjects. (shrink)

This paper discusses the problem of inconsistencies in the metaphorical conceptualizations of time that involve motion within the framework of conceptual metaphor theory. It demonstrates that the TIME AS A PURSUER metaphor contrasts with the reverse variant TIME AS AN OBJECT OF PURSUIT, just as the MOVING TIME metaphor contrasts with the MOVING OBSERVER variant. Such metaphorical conceptualizations of time functioning as pairs of minimally differing variants based on Figure-Ground reversal are, strictly speaking, inconsistent with one another. Looking at these (...) inconsistencies from a wider perspective suggests that time may belong to a separate category of conceptual phenomena. This paper puts forward a proposal to approach time from the perspective of “phenomena of the third kind”, which according to Keller’s thesis include conceptual establishments resulting from human cognition, but not of human design. (shrink)

What can an economist and agnostic tell a theologian about man? In contrast to mainstream economics, which today dominate all universities in the world, Ludwig von Mises is interested in real man in action, not a fictitious homo oeconomicus. At one time Gregory M. A. Gronbacher, an American philosopher, proposed a synthesis of Christian personalism with the free market economy developed by the Austrian School of Economics. His idea prompted me to use Mises’s praxeology to understand and describe human action (...) in the socio-economic sphere from the perspective of Catholic Social Teaching. At that time I understood how important were economic laws for the proper moral evaluation of human action. Mises in his treaty on economics Human Action developed his own anthropological concept of man. The Austrian economist never used the expression “person” to describe and analyze human action, but analyzing his economic system I was able to discover that he did not understand the free market economy as an abstract being composed of mechanical elements. According to him, the prerequisite for human activity is the desire to replace a less satisfactory state of affairs with a more satisfying one. Mises’s man is guided by his own scale of values and builds it up on the basis of a goal he freely chooses. Mises also takes into account that the market is only a part of reality and human activity. (shrink)

Jacek Filek criticizes the modern “nonethical” ethics. He points out its break with philosophy, lack of self-criticism, inanity, undue and fruitless formalism, and academism. His article makes a general request for the restitution of ethics as the independent and dignified scholarly discipline closely connected with world and life.

In a recently published paper, Patrick Todd (2016, 'Future contingents are all false! On behalf of a Russellian open future') advocates a novel treatment of future contingents. On his view, all statements concerning the contingent future are false. He motivates his semantic postulates by considerations in philosophy of time and modality, in particular by the claim that there is no actual future. I present a number of highly controversial consequences of Todd’s theory. Inadequacy of his semantics might indirectly serve as (...) an argument against the philosophical view underpinning his proposal. (shrink)

The paper briefly presents a genesis of the research project called the theology of science initiated by Michał Heller in early 1980s, but also enriched by the remarks of Józef Życiński. Then the main features of the new Heller’s book Science and theology – not necessarily exclusively on one planet are discussed. The book develops and strengthens the early ideas of theology of science. The paper draws also attention to another author—C.B. Kaiser who—since a dozen years—has been developing a similar (...) project: theology of scientific endeavor. It is also suggested that the Heller’s project, especially in its axiological and praxeological aspects, could take advantage of the achievements of several Francophone authors who once developed a field of the so-called theology of earthly realities. (shrink)

In this article we consider linear isomorphisms over the field of rational numbers between the linear spaces ℝ2 and ℝ. We prove that if f is such an isomorphism, then the image by f of the unit disk is a strictly nonmeasurable subset of the real line, which has different properties than classical non-measurable subsets of reals. We shall also consider the question whether all images of bounded measurable subsets of the plane via a such mapping are non-measurable.

In 1968 the authors of the so-called Harvard Report, proposed the recognition of an irreversible coma as a new criterion for death. The proposal was accepted by the medical, legal, religious and political circles in spite of the lack of any explanation why the irreversible coma combined with the absence of brainstem reflexes, including the respiratory reflex might be equated to death. Such an explanation was formulated in the President’s Commission Report published in 1981. This document stated, that the brain (...) is the central integrator of the body, therefore the destruction of the brain results in the lack of that integration and the death of the organism. Therefore, according to that document, the so-called “brain dead” patients are really, biologically dead; strictly speaking they are not any more biological organisms but collections of organs and tissues. Their death was masked by the use of the medical equipment, but it was a real, biological death. Thus, the explanation given by the President’s Commission Report constituted a biological rationale for the new concept of death, known as “brain death.” However, after the long discussion, this rationale was refuted because of the evidence given by many medical authorities, that the bodies of the “brain dead” and “brainstem dead” patients are alive. In the context of the discussion about the neurological criteria for death, some authors follow the idea of Plato, that human being is the soul or mind, and the body does not belong to the human essence. Therefore, the loss of consciousness, which may be identified with the mind, constitutes the loss of personhood and may be interpreted as human death. The other group stresses the Aristotelian and Thomistic concept that the body belongs to the essence of every living creature, including human. Therefore, as long as the body is alive, the human being is alive and we cannot call the given patient dead even if he is deeply comatose. Moreover, in spite of the opinions dominating in the mass-media, these patients should be considered not only alive but also may be conscious to some degree and their state can be reversible. Their brains are lacking the electrical functions, but the neuronal tissue is alive and that state is reversible for at least first 48 hours since the onset of coma; this phenomenon is called “global ischemic penumbra” and is responsible for the regularly happening events interpreted as miracles, when some of the “brain dead” or “brainstem dead” patients turn to be alive and come back to normal life. Therefore, the neurological criteria of death are still lacking generally accepted scientific basis and should not be used in medicine and in the legal systems as a basis for diagnosing comatose/having no brainstem reflexes/apneic patients dead. (shrink)

We prove that no logic (i.e. consequence operation) determined by any class of orthomodular lattices admits the deduction theorem (Theorem 2.7). We extend those results to some broader class of logics determined by ortholattices (Corollary 2.6).

The aim of this book is to present essays centered upon the subjects of Formal Ontology and Logical Philosophy. The idea of investigating philosophical problems by means of logical methods was intensively promoted in Torun by the Department of Logic of Nicolaus Copernicus University during last decade. Another aim of this book is to present to the philosophical and logical audience the activities of the Torunian Department of Logic during this decade. The papers in this volume contain the results concerning (...) Logic and Logical Philosophy, obtained within the confines of the projects initiated by the Department of Logic and other research projects in which the Torunian Department of Logic took part. (shrink)

Review of the book: Człowiek na granicy istnienia. Dyskusje o śmierci mózgowej i innych aspektach umierania, Grzegorz Hołub, Piotr Duchliński, Akademia Ignatianum w Krakowie, Wydawnictwo WAM, Kraków 2017.

Since the very dawn of its history, modern philosophical anthropology has been addressing the issue of the human body. As a result of those efforts, Descartes, de Biran, Husserl, Sartre, Marcel, Merleau-Ponty and others have brought forward a variety of conceptions concerning various aspects of human corporeality. Anthropological explorations concerning the question of the human body, appear in a particularly interesting way, when they are considered in the context of those points of view which, in an essential way, refer to (...) the subjective character of the human being. It is a matter of reconstructing and analyzing how the subject's corporeality is given to the subject, originarily, according to the phenomenological rule zu den Sachen selbst. The aim of this paper is thus to put into some order the concerns of a variety of anthropologists with regard to the question of the human body, as it is given to, or experienced by, the subject. A metatheoretical analysis of this field proves it is possible to do so with the use of a tool, which is called here, a dimension of corporeality. (shrink)

Modern science is moving away from Michael Polanyi’s vision of ‘the Republic of Science’ and gradually becoming subordinate to political and economic social institutions. This process is accompanied by changes in the normative structure of science. Poland provides an interesting case for empirical study of the scientific ethos mostly because in a relatively short time it experienced a significant reform of the science system, especially in terms of evaluating and financing scientific work. In this paper we examine whether different sets (...) of values and norms are embedded into the normative structure of science in contemporary Poland. The results of a representative survey conducted among 801 researchers were examined with the use of confirmatory factor analysis and fuzzy clustering. The statistical analysis revealed a great complexity in the normative structure of science that goes beyond the expectations formulated on the basis of the theories reviewed. We identified three distinctive groups of researchers, guided by different sets of values and norms in their professional conduct and a cluster of researchers with an unidentified system of principles. We argue that the complexity of the normative structure of science should be taken into account in the decision-making regarding any future reforms of the science system. (shrink)

This article is devoted to the conceptual analysis of the model of the universe evolution in the philosophy of global constitutionalism. Purpose of research: to develop and justify the construct of education and development of the surrounding reality within the framework of the social concept of global constitutionalism. Object of research: the phenomenon of globalization of socio-political, state-legal and financial-economic development of national societies and states as an appearance of social reality, highlighted in the social concept of global constitutionalism. Subject (...) of research: theoretical content and stages of development of the model of the universe evolution in the philosophy of global constitutionalism in relation to its social essence. (shrink)

Qui est étranger pour un Byzantin du XIe siècle? Pour répondre à cette question, Jacek BONAREK a analysé la chronique de Jean Skylitzes dans le désir de définir ceux qui sont pour le chroniqueur Romaioi, c'est-à-dire «les nôtres» et ceux qu'il considère comme les étrangers, bien que la notion xenos n'apparaisse pas dans le texte. B. fait souvent référence aux divergences sémantiques des mots. Xenos en est l'un des exemples. Ce mot signifie un visiteur, voire un allié, mais aussi (...) un nouveau venu, un mercenaire. Cette différence se réflète dans la typologie de B. qui distingue les étrangers dans les limites de l'Empire et en dehors de celui-ci. Cette problématique est traîtée dans le dernier chapître de l'ouvrage, le plus intéressant, paraît-il . Avant d'expliquer qui est étranger pour Skylitzes, ce qui est une tâche difficile, il essaie de définir à qui pense le chroniqueur en utilisant le mot «Romaioi» et il le fait dans le troisième chapître de son livre. (shrink)

Since the very dawn of its history, modern philosophical anthropology has been addressing the issue of the human body. As a result of those efforts, Descartes, de Biran, Husserl, Sartre, Marcel, Merleau-Ponty and others have brought forward a variety of conceptions concerning various aspects of human corporeality. Anthropological explorations concerning the question of the human body, appear in a particularly interesting way, when they are considered in the context of those points of view which, in an essential way, refer to (...) the subjective character of the human being. It is a matter of reconstructing and analyzing how the subject's corporeality is given to the subject, originarily, according to the phenomenological rule zu den Sachen selbst. The aim of this paper is thus to put into some order the concerns of a variety of anthropologists with regard to the question of the human body, as it is given to, or experienced by, the subject. A metatheoretical analysis of this field proves it is possible to do so with the use of a tool, which is called here, a dimension of corporeality. (shrink)

This volume clusters together issues centered upon the variety of types of intensional semantics. Consisting of 10 contributions, the volume is based on papers presented at the Trends in Logic 2019 conference. The various chapters introduce readers to the topic, or apply new types of logical semantics to elucidate subtleties of logical systems and natural language semantics. The book introduces hyperintentional systems that aim at solving some open philosophical problems. Specifically, the first three studies focus on relating semantics, while the (...) following ones discuss fundamental issues related to hyper-intensional semantics or develop hyper-intensional frameworks to address issues in modal, epistemic, deontic and action logic. Authors in this volume present original results on logical systems but also extend beyond this by offering philosophical considerations on the topic as well. This volume will appeal to students and researchers in the field of logic. (shrink)