We show that there is no non-constant assignment of zeros and ones to points of a unit sphere in R3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathbb{R}^3$$\end{document} such that for every three pairwisely orthogonal vectors, an odd number of them is assigned 1. This is a new strengthening of the Bell–Kochen–Specker theorem, which proves the non-existence of hidden variables in quantum theories.

This paper deals with the political philosophy of Václav Havel, mainly its relation to ethics and what Michel Foucault called governmentality. Besides using his analytical framework, Foucault’s politics are engaged with to highlight similar trajectories of two intellectuals dealing with related dilemmas of ethics and politics. As a dissident of communist Czechoslovakia Havel, developed a profound critique of modernity, but also discovered technologies of the self, exclusive to dissidents, which empowered them in their moral struggle against the regime. The (...) Velvet Revolution in 1989 ascended Havel to the presidency of the republic, a position from which he quickly embraced and disseminated neoliberal governmentality. The final section deals with Havel’s use of human rights in the later years of his presidency, being a justification for military interventions and comparing them to Foucault’s conceptualisation of rights. Human rights discourse is the culmination of Havel’s lifelong quest for the ethical foundation of politics and it is the source of most difficulties and potentialities associated with this project. (shrink)

An essential analysis of the modern science and technology that makes our twenty-first century lives possible--a scientist's investigation into what science really does, and does not, accomplish. We have never had so much information at our fingertips and yet most of us don't know how the world really works. This book explains seven of the most fundamental realities governing our survival and prosperity. From energy and food production, through our material world and its globalization, to risks, our environment and its (...) future, How the World Really Works offers a much-needed reality check--because before we can tackle problems effectively, we must understand the facts. In this ambitious and thought-provoking book we see, for example, that globalization isn't inevitable--the foolishness of allowing 70 per cent of the world's rubber gloves to be made in just one factory became glaringly obvious in 2020--and that our societies have been steadily increasing their dependence on fossil fuels, such that any promises of decarbonization by 2050 are a fairy tale. For example, each greenhouse-grown supermarket-bought tomato has the equivalent of five tablespoons of diesel embedded in its production, and we have no way of producing steel, cement or plastics at required scales without huge carbon emissions. Ultimately, Smil answers the most profound question of our age: are we irrevocably doomed or is a brighter utopia ahead? Compelling, data-rich and revisionist, this wonderfully broad, interdisciplinary guide finds faults with both extremes. Looking at the world through this quantitative lens reveals hidden truths that change the way we see our past, present and uncertain future. (shrink)

Od pojednání o referenčních soustavách, o souřadnicových soustavách a o jejich transformacích přechází autor k mechanice Newtonově a k Maxwell-Lorentzovým rovnicím, jejichž řešením se zabývá. Ukazuje, jak bezvýsledné pokusy ourčení pohybu Země vůči éteru vedly k principu relativity v Einsteinově formulaci a objasňuje jeho geometrické zobrazení Minkowského čtyřrozměrným prostoročasem. Ukazuje dále, jaké změny způsobila Einsteinova teorie ve fyzice, aprobírá relativistickou elektrodynamiku a relativistickou mechaniku hmotných částic. Pozornost věnuje variačním principům relativistické fyziky a úloze principu relativity ve fyzice fenomenologické. Závěrem uvádí (...) základní idejeEinsteinovy obecné teorie relativity a význam prostoročasového kontinua v dnešní fyzice. (shrink)

In the classical account of knowledge, S knows that P if and only if S believes that P, S is justified in believing that P, and P is true (JTB).. In 1963, Gettier presented two problems that casted doubt on this account. Since then, numerous authors proposed modifications or clarifications of JTB, however, these efforts have not produced a satis-factory solution. In this paper, the focus is on logical properties of justification. The Get-tier problem Case II is expressed in sentential (...) logic and Gettier Minimal Assumption (GMA) is introduced. It is shown that Gettier must have used GMA or some other as-sumption that entails GMA in his construction of Case II. Rejection of GMA solves Get-tier problem Case II and it is a step towards a better understanding of the logical proper-ties of justification and knowledge. (shrink)

Program comprehension is an essential part of software engineering. The paper describes the constructivist theory of comprehension, a process based on assimilation and accommodation of knowledge. Assimilation means that the new facts are either added to the existing knowledge or rejected. Accommodation means that the existing knowledge is reorganized in order to absorb new facts. These processes are illustrated by case studies of knowledge-level reengineering of a legacy program and of incremental change. In both cases, we constructed preliminary knowledge from (...) the program documentation, and then adjusted it by comprehending the actual code. The case studies supported constructivism as a suitable theory of program comprehension. (shrink)

Tento dokument vznikl po nkolikaletm studiu dla vznamnho spoleenskovdnho myslitele dvactho stolet Friedricha Augusta von Hayeka (vychz t z etby jeho interpret a nkterch "inspirtor") a byl sepsn pro ely zvren prce ve vedlej specializaci Filosofie na Vysok kole ekonomick v Praze. Autor se rozebranm tmatm ji v nkolika svch dvjch statch vnoval. Tentokrt vak presentuje ucelenj pohled, jeho clem je vyloit problematiku s akcentem na vzjemn souvislosti jev a mylenek. Pro pehlednost je text strukturovn do kapitol. Po krtkm vodu (...) se vnuje vymezen fundamentlnch (Hayekem resolutn od sebe odliovanch) pojm, ktermi jsou spontnn d a organizace. Navazuje kapitola upozorujc na potky konstruktivistickho racionalismu, resp. na mylen Ren Descarta, Hayekem oznaovanho za filosofa stojcho u zrodu neomezen vry v rozum. Dal kapitola je vnovna Davidu Humovi, jeho teze Hayek astokrt "naden cituje" a kter poskytuje "oporu" jeho anti-racionalistickmu pstupu. Pot se text sousted na spontnn d trhu (zejmna pak na otzku spravedlnosti a svobody) a presentuje Hayekv vznamn koncept ve spolenosti rozptlench znalost. Nakonec autor krtce diskutuje dnen uplatnn Hayekova rozshlho odkazu. Pedkldan prce se primrn zamuje na ideu, kter jednoznan prostupuje celm Hayekovm dlem a poskytuje mu zcela zsadn argument pro vysvtlovn jev ve spolenosti, toti na ideu omezenosti naeho poznn. Clem pspvku je upozornit na Hayekovo mylen prostednictvm vybranch tmat, piem se v ppad tchto soustedit na kritickou reflexi hranic rozumu s poukazem na jej vznam a dsledky. (shrink)

Pojem filosofie nabyl v průběhu historie řadu podob a významů. Kromě tradičního teoretického zaměření se lze setkat s přístupem, který vyzdvihuje praktický dopad filosofování na život člověka. Příspěvek představuje koncept filosofické praxe a reflektuje její současný stav na území České republiky. Autoři vymezují filosofickou praxi jako disciplínu filosofie, a načrtávají její možné dělení na dílčí oblasti. Nastíněny jsou její historické kořeny, které autoři identifikují v antickém Řecku. Dále se věnují systematickému představení doposud sepsaných materiálů k filosofické praxi a přehledu její (...) realizace na území České republiky. Detailní pozornost věnují autoři popisu tří jejích oblastí, mezi které patří filosofie pro děti, filosofický workshop a filosofická konzultace. Kromě teoretického vymezení reflektují rovněž své vlastní postupy v uvedených oblastech. Článek čerpá především ze zahraniční odborné literatury, konkrétně z textů a dalších materiálů filosofických praktikantů. Jeho cílem je představit českému čtenáři doposud podrobněji neřešený koncept filosofické praxe a připravit tak pole pro možnou debatu na akademické rovině. -------- The concept of philosophy has had several forms and meanings throughout the history. Besides the traditional theoretical focus, we may also encounter the approach that highlights a practical impact of philosophizing on one’s life. This text introduces the concept of philosophical practice and reflects its current situation in the Czech Republic. Authors characterize philosophical practice as a discipline of philosophy and present its possible division into subsections. They also present its historical roots, which can be found in ancient Greece. Moreover, authors introduce available sources dealing with the philosophical practice and describe how this discipline is actually practiced in the Czech Republic. Detailed attention is given to three of its sections, namely philosophy for children (P4C), philosophical workshop, and philosophical consultation. Authors present theoretical background and also reflect their own methods in these sections. The text draws primarily from scholarly literature from abroad, particularly from the manuscripts and other sources produced by philosophical practitioners. The aim of this text is to introduce the concept of philosophical practice to the Czech reader and prepare the field for further academic discussion. (shrink)

The essay is the critical reflection on the current state of global politics. It points to the importance of reconnecting politics with more substantial “human affairs”. The search for new understanding and conceptual tools is necessary on both sides of the political spectrum, however, the left should press for its lost identity more urgently. But what is even more urgent is the planetary vision based on reflexive rationality and a politics of dialogue, respect for the environment and civil society, overcoming (...) obsolete and pointless political strategies and forms of life. Knowledge and nature are to be taken as public assets. (shrink)

Cílem tohoto příspěvku je interpretovat kolaboraci za druhé světové války jako fenomén. První část textu se zaměřuje především na její filozofické aspekty (pojmy mez, interakce a vina), a to hlavně na bázi Jasperse, ve druhé jsou aplikovány na český kontext druhé světové války a tranziční spravedlnosti. Vytvoří se tak schéma kolaborace, resp. kolaborace bude zasazena mezi další životní strategie. Díky tomuto propojení může příspěvek poskytnout interdisciplinární pohled na problematiku, která rozhodně vzhledem k současnému vývoji ve světě i v Evropě není (...) neaktuální. (shrink)

A review of Owen Hulatt´s Aesthetic and Artistic Autonomy.

The present study addresses language ostracism in intercultural communication, a phenomenon when someone speaks a language but some members of this language community don’t speak to him in this language. This phenomenon is illustrated by language behaviour towards visually distinct bilingual minorities in Taiwan. Visually distinct minorities in Taiwan reported that they had been spoken to in English by small children or people who did not believe and accept that they really understood Mandarin when they spoke it. They might be (...) spoken to in English despite actually speaking good Mandarin. Taiwanese people behave this way because of two conditions existing in Taiwan: an English-speaking foreigner stereotype where people assume that every foreign-looking person speaks English, and English privilege in Taiwanese society which leads to people being treated better if they can speak English. (shrink)

This study reviews the current information concerning the measurement of the situation awareness (SA) of the teleoperated drivers of remotely controlled cars. The teleoperated drivers who drive these cars are in a remote location, and they control the cars through a communication interface. The objective methods with probes are beneficial in measuring SA on a closed circuit without real traffic. Questions specifically should address the information provided on the road by haptic sensations, such as the slope of the road and (...) the vehicle's speed. Methods for measuring SA that involve probes and interruptions obviously are not suitable for use on public roads. A stable environment for the display and control of the communication interface is suitable for an eye tracker in measuring SA. These features also facilitate the use of subjective observer-rating methods. Both of these methods are suitable for driving on real roads because they are not intrusive. SA research in a real-road environment also should demonstrate how the SA of other drivers is affected by seeing a car without a driver. Given the remote character of driving, cultural differences in cognition may have a significant influence on the SA of the teleoperated driver. (shrink)

There is a popular idea that archaic humans commonly used wooden clubs as their weapons. This is not based on archaeological finds, which are minimal from the Pleistocene, but rather on a few ethnographic analogies and the association of these weapons with simple technology. This article presents the first quantitative cross-cultural analysis of the use of wooden clubs and throwing sticks for hunting and violence among foragers. Using a sample of 57 recent hunting-gathering societies from the Standard Cross-Cultural Sample, it (...) is shown that the majority used clubs for violence (86%) and/or hunting (74%). Whereas in hunting and fishing the club usually served only as a secondary tool, 33% of societies used the club as one of their main fighting weapons. The use of throwing sticks was less frequent among the societies surveyed (12% for violence, 14% for hunting). Based on these results and other evidence, it is argued that the use of clubs by early humans was highly probable, at least in the simplest form of a crude stick. The great variation in the forms and use of clubs and throwing sticks among recent hunter-gatherers, however, indicates that they are not standardized weapons and that similar variation may have existed in the past. Many such prehistoric weapons may therefore have been quite sophisticated, multifunctional, and carried strong symbolic meaning. (shrink)

The present paper deals with the notion of essence in Thomas Aquinas. Part 1 focuses on the main points of Aquinas’s doctrine of essence set out in his De ente et essentia, and especially on the concept of essence as the “form of the whole” and the concept of the “nature considered absolutely”. The comparison with the teaching of Aristotle and Aquinas’s Arabic predecessors in Part 2 shows that Thomas’s notion of essence is an innovative re-interpretation, which he largely owes (...) to Avicenna, of the original Peripatetic doctrine. Nevertheless, it is shown that this re-interpretation is to be understood as a result of Avicenna’s and Aquinas’s effort to provide a consistent explanation of various statements in Aristotle’s writings, not always compatible with each other. (shrink)

According to Williams, human facially expressed pain, and its perception by conspecifics, is generated by evolved mechanisms. We argue that a key variable – sex (male, female) – needs to be considered for a complete theory of pain expression and perception. To illustrate, we cite findings on sex differences in pain and pain perception, and in crying and crying responsiveness.

Integration of different lines of research concerning grandparental investment appears to be both promising and necessary. However, it must stop short when confronted with incommensurate arguments and hypotheses, either within or between disciplines. Further, some hypotheses have less plausibility and veridicality than others. This point is illustrated with results that conflict previous conclusions from evolutionary psychology about differential grandparental investment.

Blair's assertion that fluid intelligence (gF) is distinct from general intelligence (g) is contradictory to cumulative evidence from intelligence research, including extant and novel evidence about generational IQ gains (Lynn–Flynn effect). Because of the near unity of gF and g, his hypothetical concept of gF' (gF “purged” of g variance) may well be a phlogiston theory. (Published Online April 5 2006).

Suicidal behavior is an interesting blank space in Keller & Miller's (K&M's) population genetical account on explaining the existence and persistence of common, harmful, heritable mental disorders. I argue that suicidal behavior is yet another of these disorders. It may well be consistent with all three evolutionary models considered by K&M. (Published Online November 9 2006).

Simpson and Gangestad's (1991) Sociosexual Orientation Inventory (SOI) is pivotal in Schmitt's cross-national study on sociosexuality. Here I elaborate on psychometric shortcomings of the SOI that are crucial in this research context.

According to Roberts, self-experimentation is a viable tool for idea generation in the behavioral sciences. Here we discuss some limitations of this assertion, as well as particular design and data-analytic shortcomings of his experiments.

An objective, comprehensive treatment of the world's energy situation assesses the major trends in energy consumption across the globe while examining the potential of wind, solar, hydroenergy, and biomass energy.

Young men are more distressed by a partner’s sexual infidelity, whereas young women are more distressed by a partner’s emotional infidelity. The present research investigated (a) whether the sex difference in jealousy replicates in an older sample, and (b) whether younger people differ from older people in their selection of the more distressing infidelity scenario. We presented forced-choice dilemmas to 202 older people (mean age = 67 years) and to 234 younger people (mean age = 20 years). The sex difference (...) replicated in the older sample. In addition, older women were less likely than younger women to select a partner’s emotional infidelity as more distressing than a partner’s sexual infidelity. Discussion offers directions for future work on sex differences and age differences in jealousy. (shrink)

The topic of the article is the aporia of Bentham’s ethics. I point to the deeper philosophical foundations of Bentham’s ethical thought which draw on the materialist and empiricist traditions of the Enlightenment. I show how these foundations lead to a naturalistic reduction of all normative concepts, and I present the aporetic implications of this reduction with respect to the duality of Bentham’s basic ethical principle and his theory of the motivation of human action.