Why is a red face not really red? How do we decide that this book is a textbook or not? Conceptual spaces provide the medium on which these computations are performed, but an additional operation is needed: Contrast. By contrasting a reddish face with a prototypical face, one gets a prototypical ‘red’. By contrasting this book with a prototypical textbook, the lack of exercises may pop out. Dynamic contrasting is an essential operation for converting perceptions into predicates. The existence of (...) dynamic contrasting may contribute to explaining why lexical meanings correspond to convex regions of conceptual spaces. But it also explains why predication is most of the time opportunistic, depending on context. While off-line conceptual similarity is a holistic operation, the contrast operation provides a context-dependent distance that creates ephemeral predicative judgments that are essential for interfacing conceptual spaces with natural language and with reasoning. (shrink)

La antropología filosófica de L. Wittgenstein está siendo discutida intensamente desde diferentes puntos de vista. El libro reflexiona alrededor de la propuesta de P. M. S. Hacker de su trabajo ‘El enfoque antropológico y etnológico de Wittgenstein’. El autor se interroga si cuando adoptamos una visión antropológica ubicamos nuestra posición externamente, para ver las cosas objetivamente. Para ello, se analiza el problema vinculado a la gramática y su constitución conceptual. Plantea hasta que punto compartimos los conceptos que usamos en nuestro (...) enfoque antropológico. V. Sanfélix entiende que L. Wittgenstein ha ido desarrollando un historicismo sin historia y una etnología sin etnografía e indica que la utilidad de esta “etnología fantástica” ayuda a ganar una visión sinóptica de la gramática de nuestros conceptos. A. Tomasini Bassols reflexiona alrededor la plataforma sobre la que elabora la antropología filosófica y si se puede sostenerse que la obra de Wittgenstein contiene una antropología filosófica. L. Hertzberg examina el modo como Hacker analiza los conceptos. Repasa la distinción “analítico/sintético” y el “historicismo sin historia”. M. Holguín razona acerca de la “historia natural”. Desde su punto de vista, Hacker justifica los calificativos de aproximación “antropológica” o “etnológica” con el fin de describir una nueva perspectiva que le permite abordar los problemas conceptuales. W. Jacorzynski reconsidera el enfoque etnológico de Wittgenstein y se para a considerar el análisis conductual, la regularidad/uniformidad, la historicidad (“sin historia”), la autonomía y la arbitrariedad de la gramática. J. Sádaba profundiza acerca del esquema general desde donde se interpreta nuestra actividad existencial sin que por ello se proponga describir historiográficamente los recorridos de la humanidad. J. Padilla Gálvez ubica el programa antropológico en una fenomenología epistemológica que se caracteriza por el estudio del análisis del lenguaje usado y conjetura que el proyecto fenomenológico quedaría corto si analiza exclusivamente la gramática ya que esta carece de perspicuidad. Por esta razón, el programa requiere de un análisis amplio cuyo proyecto se complemente con la “representación perspicua”. (shrink)

The article analyzes the changes of legal regulation on natural gas market in the context of the third European Union (EU) energy package. The paper consists of the introduction, two parts and conclusions. The first part analyses the main provisions on the natural gas market of the Third EU energy package. The second part of the paper focuses on the effect of the Third EU energy package on legal regulation of natural gas market in Lithuania. For this (...) purpose, the author analyzes the relevant provisions of the future legal regulation that are laid out in the Conception on draft amendment of the Lithuanian law on natural gas (the Conception) that was adopted by the Resolution of 19 May 2010 No. 585 of the Government of the Republic of Lithuania (the Government). The author analyses the chosen model of implementation of the Directive 2009/73/EC of the European Parliament and of the Council concerning common rules for the internal market in natural gas of 13 July 2009 and repealing Directive 2003/55/EC (Directive 2009/73/EC), and the possible negative and positive consequences of the implementation of the model chosen by the drafters of the Conception. The paper is ended with motivated conclusions. (shrink)

The article analyses the legal status of the natural gas market regulatory institutions in Lithuania and in the member states of the European Union. First, the authors assess the most important elements of the legal status of the natural gas market regulators in the EU member states, namely, the degree of autonomy (type of institution, appointment and dismissal procedures of management, duration of the terms of office, sources of funding) and the measures aimed at ensuring accountability, transparency, and (...) prevention of conflicts of interest. Second, the legal status of the National Control Commission for Prices and Energy, which carries out functions of regulation and control of the natural gas sector in Lithuania, is examined. Finally, the authors conclude that the imperfections in the regulation of the legal status of the Commission result in several negative effects and provide reasoned proposals regarding the improvement of the legal status of the Commission. (shrink)

Check out ONGsucks.com, this is not a Justpeace or Better Times page, it's from a guy who's obviously fed up with the high prices of natural gas. We are too, that's why we put a wood stove in last year. For other energy conservation tips, check out our Better Times Energy Conservation Page.

Die naturwissenschaftliche Erkenntnis nimmt die Trennung in ein erkennendes Subjekt und erkanntes Objekt vor, um die Gesetzmäßigkeit natürlicher Abläufe zu erforschen und menschlichen Zwecken dienlich zu machen. Die Naturgegenstände werden zwar begrifflich und funktional bestimmt, jedoch nicht ganzheitlich erfasst. Mit dem Blick auf Mahāyāna-Lehren in Indien und Japan wird eine neue Sicht eröffnet: Nāgārjuna (ca. 2. Jahrhundert) lehrt als Weiterführung des Herz-Sūtras das abhängige Entstehen aller Dinge aufgrund der Leerheit. Der japanische Zen-Denker Dōgen Kigen (1200 -1253) erfasst die Phänomene als (...) Verkörperung der allumfassenden Lehre dharma. In der Einsicht prajñā ist das wahre Wesen der konkreten Wirklichkeit, die Buddha-Natur, mit dem Erkennenden im Augenblick untrennbar verbunden. (shrink)

Since the inception of modern approaches to grammar, Japanese ga has been treated as a marker indicating the grammatical relation `subject.' If this is an accurate characterization of ga, then we would expect ga to occur to mark a grammatical category consisting of `A' and `S'. Our examination of the contexts in which ga is actually used in everyday Japanese conversations shows that this expectation is not borne out. Our findings suggest that it is not appropriate to describe ga in (...) terms of a grammatical relation such as `subject', and that ga may be much less a grammatical marker than a discourse-pragmatic one. (shrink)

El presente artículo busca enfocar la correlación entre el uso de la energía, el espacio, el territorio y el desarrollo local, teniendo en cuenta la utilización del gas natural en las cerámicas de Mato Grosso del Sur/Brasil. La importancia de los hechos geográficos es pautada por muchos parámetros, como el paso del tiempo, los nuevos descubrimientos tecnológicos, las necesidades de materias primas, los objetivos nacionales e internacionales y la ética de las relaciones internacionales. El gas natural no es (...) utilizado aún como fuente alternativa de energía en gran escala en el Estado. Puede ser considerado como uno de los resultados de la valorización de la política socio económica, de la cultura local y del medio ambiente preservado como parte de la identidad local del ser humano al mejorar su calidad de vida. (shrink)

The Indian philosopher Acarya Nagarjuna (c. 150-250 CE) was the founder of the Madhyamaka (Middle Path) school of Mahayana Buddhism and arguably the most influential Buddhist thinker after Buddha himself. Indeed, in the Tibetan and East Asian traditions, Nagarjuna is often referred to as the "second Buddha." This book presents a survey of the whole of Nagarjuna's philosophy based on his key philosophical writings. His primary contribution to Buddhist thought lies in the further development of the concept of sunyata or (...) "emptiness." For Nagarjuna, all phenomena are without any svabhava, literally "own-nature" or "self-nature," and thus without any underlying substance. Particular emphasis is put on discussing Nagarjuna's thinking as philosophy. The present discussion shows how his thoughts on metaphysics, epistemology, the self, language, and truth present a unified theory of reality with considerable systematic appeal. The book offers a systematic account of Nagarjuna's philosophical position. It reads Nagarjuna in his own philosophical context, but also shows that the issues of Indian and Tibetan Buddhist philosophy have at least family resemblances to issues in European philosophy. (shrink)

This article tells the story of the oil and gas origins of the Gaia hypothesis, the theory that the Earth is a homeostatic system. It shows how Gaia’s key assumption—that the climate is a fundamentally stable system, able to withstand perturbations—emerged as a result of a collaboration between the theory’s progenitor, James Lovelock, and Royal Dutch Shell in response to Shell’s concerns about the effects of its products on the climate. The article explains how Lovelock elaborated the Gaia hypothesis and (...) gave it evidential depth through a series of Royal Dutch Shell-funded research projects meant to identify organisms whose biological activities might double as climate-regulating mechanisms. The article goes on to show how this research subsequently laid the foundation for a distinct genre of climate change denialism, in which corporations sowed doubt not by denying the phenomenon of global warming but by naturalizing it. (shrink)

For genetic algorithms, it is important to maintain the population diversity. Some genetic algorithms have been proposed, which have an ability to control the diversity. But these algorithms use the distance between two individuals to control the diversity. Therefore, these performances become worse on ill-scaled functions. In this paper, we propose a new genetic algorithm, DIDC(a genetic algorithm with Distance Independent Diversity Control), that does not use a distance to control the population diversity. For controlling the diversity, DIDC uses two (...) GAs that have different natures. For realizing different natures, one GA uses a crossover operator as a search operator, and the other GA uses a mutation operator in DIDC. By applying DIDC to several benchmark problems, we show that DIDC has a good performance on high dimensional, multimodal, non-separable and ill-scaled problems. Finally, we show that the control parameter of DIDC has the same effect on the search with the number of generating children n c. (shrink)

This is an expansion of the author's 1991 work which investigates the implications of Gödel's writings on Einstein's theory of relativity as they relate to the fundamental questions of the nature of time and the possibilities for time travel.

Highlights: -/- • Breastfeeding and breastfeeding support can contribute to mitigating climate change. • Achieving global nutrition targets will save more emissions than fuel-switching. • Breastfeeding support programmes support a just transition. • This work can support the expansion of mitigation options in energy system models. -/- Abstract: -/- Renewable gas has been proposed as a solution to decarbonise industrial processes, specifically heat demand. As part of this effort, the breast-milk substitutes industry is proposing to use renewable gas as a (...) substitute for fossil natural gas. However, decarbonising the industrial processing of breast-milk substitutes can increase social license for these products, potentially undermining breastfeeding. World Health Organisation nutrition targets aim to increase exclusive breastfeeding to at least 50% globally by 2025 to improve maternal, infant, and young child health and nutrition. This target will have implications for the energy transition. A weakness of existing energy models is that demands for end-use products such as breast-milk substitutes are typically not considered explicitly. This paper develops an analytical framework for explicitly representing infant feeding methods in energy systems models. We compare the emissions saved in Ireland from decarbonising the industrial processing of breast-milk substitutes with renewable gas with the emissions saved by an increase in exclusive breastfeeding to 50% in both Ireland and a key export market, China. We demonstrate that the emissions saved from achieving the minimum global breastfeeding target are greater than when renewable gas is used to displace natural gas in the production of breast-milk substitutes in Ireland. We discuss the decarbonisation of breast-milk substitutes in relation to the principle of justice as non-maleficence, a principle based on the commitment to avoid harm, a novel application of a principle of justice. We conclude that breastfeeding support can be considered a demand-side measure for mitigating climate change by reducing the demand for energy services to produce breast-milk substitutes. A key recommendation is to position breastfeeding support as both a public health and a climate justice issue that is relevant for a just transition. The framework developed for this paper could be applied to support the inclusion of a wider range of mitigation options with social justice outcomes in energy system models. [Open access]. (shrink)

Using the genetic algorithm and fuzzy logic, this study presents a nonlinear approach to the evaluation of biofunctional intelligence. According to the biofunctional model, intelligence may be viewed as a multisource phenomenon resulting in part from the interaction of learning processes and sources of self-regulation. Learning processes are regulated by three sources of control , producing three subprocesses for each learning process. This paper examines the role of five such subprocesses as contributors to intelligence. Fuzzy logic captures the fuzzy nature (...) of human intelligence with GA providing a method for determining and optimizing the contribution of these learning subprocesses. (shrink)

Bailey, C. and R. Downey, Tabular degrees in \Ga-recursion theory, Annals of Pure and Applied Logic 55 205–236. We introduce several generalizations of the truth-table and weak-truth-table reducibilities to \Ga-recursion theory. A number of examples are given of theorems that lift from \Gw-recursion theory, and of theorems that do not. In particular it is shown that the regular sets theorem fails and that not all natural generalizations of wtt are the same.

National greenhouse-gas accounting should reflect how countries’ policies and behaviours affect global emissions. Actions that contribute to reduced global emissions should be credited, and actions that increase them should be penalized. This is essential if accounting is to serve as accurate guidance for climate policy. Yet this principle is not satisfied by the two most common accounting methods. Production-based accounting used under the Kyoto Protocol does not account for carbon leakage — the phenomenon of countries reducing their domestic emissions by (...) shifting carbon-intensive production abroad1. Consumption-based accounting2,3 does not credit countries for cleaning up their export industries, and it also punishes some types of trade that could contribute to more carbon efficient production worldwide. We propose an improvement to consumption-based carbon accounting that takes technology differences in export sectors into account and thereby tends to more correctly reflect how national policy changes affect total global emissions. We also present empirical results showing how this new measure redraws the global emissions map. (shrink)

This paper examines the nature of ‘reasonable’ argumentation in Generation of Animals III.10. Its aim is to develop an alternative to the dialectical construal of reasonable argumentation in Aristotle recently favoured by Robert Bolton. On the basis of a close textual analysis I show that the reasonable arguments deployed in Generation of Animals III.10 do not appeal to endoxa or reputable beliefs per se. Instead, they rely upon general facts about animals established by empirical induction. This implies that, contra Bolton, (...) not all reasonable arguments in Aristotle are dialectical; some, in fact, are thoroughly empirical and scientific. I conclude by suggesting that such empirical reasonable arguments even have a place in the De Caelo, the treatise that Bolton primarily focused upon when developing his interpretation. (shrink)

Which works and tenets of early modern natural law reached East-Central Europe, and how? How was it received, what influence did it have? And how did theorists and users of natural law in East- Central Europe enrich the pan-European discourse? This volume is pioneering in two ways; it draws the east of the Empire and its borderlands into the study of natural law, and it adds natural law to the practical discourse of this region. Drawing on (...) a large amount of previously neglected printed or handwritten sources, the authors highlight the impact that Grotius, Pufendorf, Heineccius and others exerted on the teaching of politics and moral philosophy as well as on policies regarding public law, codification praxis, or religious toleration. Contributors are: Péter Balázs, Ivo Cerman, Karin Friedrich, Gábor Gángó, Anna Grześkowiak-Krwawicz, Knud Haakonssen, Steffen Huber, Borbála Lovas, Martin P. Schennach, and József Simon. (shrink)

According to most interpreters, Aristotle explains death as the result of material processes of the body going against the nature of the living being. Yet, this description is incomplete, for it does not clarify the relationship between the process of decay and the teleological system in which it occurs: this makes it impossible to distinguish between natural and violent death. In this paper, I try to fill this gap by looking at his so-called ‘biological works’ and mainly at the (...) De Juventute. I first introduce the specific concept of life at play in this treatise and prove its complementarity with the framework of the De Anima. Then, I illustrate in detail the process of dying and the reasons why a merely material description is insufficient to account for the distinction between natural and violent death. Finally, I show that for Aristotle natural death is a by-product of teleologically directed life activities: only against the background of this teleological structure is natural death fully explained in terms of essence and causes. To support this claim, I compare death to two analogous cases in Aristotle’s biology, namely dreams and the features of GA V. (shrink)

There is a longstanding discussion whether wide-scope indefinites denote choice functions that are existentially bound or remain free. Data from Ga, an under-researched language spoken in Ghana, show that there are wide-scope indefinites denoting existentially bound skolemized choice functions whose parameter is bound by a higher quantificational NP, free skolemized choice functions with the speaker or a higher quantificational NP as a parameter, and narrow scope quantificational indefinites. Thus the data show that both existentially bound and free skolemized choice functions (...) are attested in natural language shedding new light on the semantics of indefinites. (shrink)

The quantum corrections related to the ideal gas model often considered are those associated to the bosonic or fermionic nature of particles. However, in this work, other kinds of corrections related to the quantum nature of phase space are highlighted. These corrections are introduced as improvements in the expression of the partition function of an ideal gas. Then corrected thermodynamics properties of the ideal gas are deduced. Both the non-relativistic quantum and relativistic quantum cases are considered. It is shown that (...) the corrections in the non-relativistic quantum case may be particularly useful to describe the deviation from the Maxwell–Boltzmann model at low temperature and/or in confined space. These corrections can be considered as including the description of quantum size and shape effects. For the relativistic quantum case, the corrections could be relevant for confined space and when the thermal energy of each particle is comparable to their rest energy. The corrections appear mainly as modifications in the thermodynamic equation of state and in the expressions of the partition function and thermodynamic functions like entropy, internal energy and free energy. Expressions corresponding to the Maxwell–Boltzmann model are shown to be asymptotic limits of the corrected expressions. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Ethics & the Environment 8.2 (2003) 8-30 [Access article in PDF] Dialogue, Responsibility, and Oil and Gas Leasing on Montana's Rocky Mountain Front Scott Friskics "How does nature speak to our concern? That is the question" (Bugbee 1978, 11). It's a late afternoon in mid-March and I'm standing outside my friends' house on the southwest edge of Augusta, Montana, a small town of about 500 residents. I'm here to (...) meet a companion who's headed out from Great Falls to spend the weekend at my cabin, which is located up in the mountains approximately 20 miles west of here. As is often the case, I'm a bit early for our rendezvous. Blame it on unbridled anticipation or a latent preoccupation with punctuality, but my premature arrival offers me a few stolen moments of enforced inactivity with which I can revel in the sensory fullness of a pleasant, pre-spring afternoon.Out here on the plains, spring seems much nearer at hand than it does back up in the mountains. The air's still cool and the wind still bites, but the warm afternoon sun embraces me and unlocks a host of smells long-held in winter's freeze: earthy mud puddles, sweet horse manure, damp hay. [End Page 8]While waiting, I wander over to the nearby corral to greet three gentle, mud-splattered horses. As I absently rub their chins and stroke their long, slender noses, I gaze out beyond the horses, out beyond the soupy corral, beyond the expanse of wrinkled, sere, brown plains. My eyes focus on the blue-shadowed wall of mountains from which I've just emerged: Montana's Rocky Mountain Front. From this vantage point, the Front presents itself as a horizon-filling tidal wave of rock—fluid, walking mountains that, over the course of their long march through time, have been thrust skyward and pushed eastward to where their easternmost reefs and ridges now hang precipitously over the wide expanse of the northern Great Plains.Dead center in my line of vision stands the tilted summit of Crown Mountain—the univocal, eloquent peak that towers about the narrow mountain valley where I live, provides me with the ultimate spatial reference point for my life, and fills my days with the gracious bounty of its abiding presence. From here, however, Crown Mountain presents itself to me not so much as a soloist, but rather as one voice in a chorus of mountain song. Working southward from this orienting center, I encounter Crown Mountain's nameless twin and the rocky ridge line descending to Welcome Pass, above the notch of which rises the deceptively unassuming head of the Scapegoat Massif. Much nearer at hand and dominating the foreground stands the dark cone of Haystack Butte—an intrusive igneous island in a sea of sedimentary mountains. Further south runs the high ridge guarding the headwaters of the Dearborn River, with Steamboat Mountain rising above the rugged country drained by Elk Creek, Blubber Creek, Falls Creek, Cuniff Creek.Working northward from the crown, the mountains are no less spectacular, no less evocative: the slanting summit of Fairview Mountain, the jagged gray wall of Sawtooth Ridge, the low gap of Sun Canyon (where the united Sun River flows out onto the plains and benches of central Montana), the flattened rock face of Castle Reef, and, framing the northern edge of my vista, the rising bulk of Ear Mountain. Of course, standing here in Augusta I'm well aware that what I can see from this spot is less than half of the Front, so my imagination continues north to Blackleaf Canyon, the Birch Creek country, the Badger-Two Medicine, the east slopes of Glacier National Park, and that holy border sentinel, Chief Mountain.I first saw this glorious stretch of country on a blustery November day 16 years ago, and I have yet to encounter another place that speaks to me with such force and beauty, such overwhelming, undeniable eloquence. [End Page 9] And, on this soul-stirring March afternoon, the... (shrink)

To address climate change fairly, many conflicting claims over natural resources must be balanced against one another. This has long been obvious in the case of fossil fuels and greenhouse gas sinks including the atmosphere and forests; but it is ever more apparent that responses to climate change also threaten to spur new competition over land and extractive resources. This makes climate change an instance of a broader, more enduring and - for many - all too familiar problem: the (...) problem of human conflict over how the natural world should be cared for, protected, shared, used, and managed. -/- This work develops a new theory of global egalitarianism concerning natural resources, rejecting both permanent sovereignty and equal division, which is then used to examine the problem of climate change. It formulates principles of resource right designed to protect the ability of all human beings to satisfy their basic needs as members of self-determining political communities, where it is understood that the genuine exercise of collective self-determination is not possible from a position of significant disadvantage in global wealth and power relations. These principles are used to address the question of where to set the ceiling on future greenhouse gas emissions and how to share the resulting emissions budget, in the face of conflicting claims to fossil fuels, climate sinks, and land. It is also used to defend an unorthodox understanding of responsibility for climate change as a problem of global justice, based on its provenance in historical injustice concerning natural resources. (shrink)

***Angaben zur beteiligten Person Kühn: Dr. Sebastian Kühn, wissenschaftlicher Mitarbeiter.

A new English translation of the founding text of the Madhyamaka (Middle Way) school of Buddhism, with the Tibetan version of the text included. The Root Stanzas holds an honored place in all branches of Tibetan Buddhism, as well as in the Buddhist traditions found in China, Japan, and Korea, because of the way it develops the seminal view of emptiness (shunyata), which is crucial to understanding Mahayana Buddhism and central to its practice. It is prized for its pithy and (...) pointed arguments that show that things lack intrinsic being and thus are “empty” (shunya). They abide in the Middle Way, free from the extremes of permanence and annihilation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Nature and Altering It, and: Keeping God’s Earth: The Global Environment in Biblical PerspectiveJohn SniegockiNature and Altering It Allen Verhey Grand Rapids, Mich.: Eerdmans, 2010. 150 pp. $15.00.Keeping God’s Earth: The Global Environment in Biblical Perspective Edited by Noah Toly and Daniel Block Downers Grove, Ill.: IVP Academic, 2010. 300 pp. $25.00.Both of the books under review focus on how Christians should relate to the rest of God’s (...) creation. The first book, Nature and Altering It, is based on Allen Verhey’s 2008 Jellema Lectures at Calvin College. It is a rather brief book, which retains much of the lecture style. The purpose of the book is to explore how Christians should relate to the natural world. In the opening chapter, Verhey provides sixteen different definitions of “nature,” opting himself for a definition of nature as “everything but God” (12). Verhey further contends that any definition of nature is necessarily embedded in a broader vision or myth. In the second chapter he explores and critiques some of the dominant myths of our time, such as the “Baconian myth,” the “myth of the project of liberal society,” and the “myth of the project of capitalism.” These myths, he argues, together contribute to an instrumental view of nature, the priority of short-term economic interests, and a rather blind faith in science-technology and unlimited economic growth.In contrast to these and other myths and their harmful social and ecological consequences, Verhey stresses the importance of the “myth of the Christian Scriptures” (12). Among the central biblical themes he highlights are the distinction between God and creation and the prohibition of all forms of idolatry, including idolatry of science and technology, of economic growth, or of nature itself. Verhey also emphasizes the goodness of creation, creation’s promised future eschatological perfection, God’s deep concern for the poor and marginalized, and the vocation of humans to image God’s care for the world. “We image God,” Verhey states, “in self-giving, in practices of caring for and affirming the existence of the other, including the non-human other” (86–87).While focusing especially on the importance of narrative and storytelling, arguing that “the biggest danger for the Christian community is forgetfulness” [End Page 220] (120), Verhey also stresses the need for prophecy, wisdom, analysis, and policy work. Each should be shaped by the Christian narrative and give rise to actions that “already give some little token” of the fullness of shalom that is God’s promised future for humanity and creation (121). Among the specific ecological actions that Verhey recommends are planting a garden, living simply, prioritizing energy efficiency, and working for policy changes that will foster ecological sustainability.The volume Keeping God’s Earth, edited by Noah Toly and Daniel Block, explores from an evangelical Christian perspective the same basic question of how humans are to properly relate to God’s creation. The book begins with a chapter titled “Eschatology and Environmental Ethics,” followed by four paired sets of chapters exploring the topics of cities, biodiversity, water, and climate change. The first essay of each pair provides a factual overview of the topic. The second explores biblical theology relevant to the topic. The book concludes with an essay on environmental ethics and an afterword exploring the theme of Christ as “Gardener-King.”The four chapters that present factual overviews of ecological problems are very helpful, providing important background information upon which informed theological and ethical reflection depends. The chapter by renowned climatologist Sir John Houghton on global climate change is especially useful, highlighting the urgency of rapidly reducing greenhouse gas emissions and explaining why taking a “wait and see” attitude should be understood as morally irresponsible. “The truth is,” asserts Houghton, “that our global environment is deteriorating at an alarming rate, and unless we admit our destructive behaviors and seek more sustainable responses... our children’s children will have very little hope for a future” (189). Acknowledging such dire realities, David Gushee, in the book’s concluding chapter on ecological ethics, stresses that attention to ecology can be properly seen as the most pressing moral challenge that humanity faces. Ecological... (shrink)

Great intuitions are fundamental to conjecture and discovery in mathematics. In this paper, we investigate the role that intuition plays in mathematical thinking. We review key events in the history of mathematics where paradoxes have emerged from mathematicians' most intuitive concepts and convictions, and where the resulting difficulties led to heated controversies and debates. Examples are drawn from Riemannian geometry, set theory and the analytic theory of the continuum, and include the Continuum Hypothesis, the Tarski-Banach Paradox, and several works by (...) Gödel, Cantor, Wittgenstein and Weierstrass. We examine several fallacies of intuition and determine how far our intuitive conjectures are limited by the nature of our sense-experience, and by our capacities for conceptualization. Finally, I suggest how we can use visual and formal heuristics to cultivate our mathematical intuitions and how the breadth of this new epistemic perspective can be useful in cases where intuition has traditionally been regarded as out of its depth. (shrink)