This essay considers biotrophic cyst and root‐knot nematodes in relation to their biology, host–parasite interactions and molecular genetics. These nematodes have to face the biological consequences of the physical constraints imposed by the soil environment in which they live while their hosts inhabit both above and below ground environments. The two groups of nematodes appear to have adopted radically different solutions to these problems with the result that one group is a host specialist and reproduces sexually while the other has (...) an enormous host range and reproduces by mitotic parthenogenesis. We consider what is known about the modes of parasitism used by these nematodes and how it relates to their host range, including the surprising finding that parasitism genes in both nematode groups have been recruited from bacteria. The nuclear and mitochondrial genomes of these two nematode groups are very different and we consider how these findings relate to the biology of the organisms. BioEssays 30:249–259, 2008. © 2008 Wiley Periodicals, Inc. (shrink)

Pothos suggests dispensing with the distinction between rules and similarity, without defining what is meant by either term. We agree that there are problems with the distinction between rules and similarity, but believe these will be solved only by exploring the representations and processes underlying cases purported to involve rules and similarity.

Because the status of nature is ambiguous in Being and Time, we explore an ecological perspective on Heidegger’s early main work in this article. Our hypothesis is that the affordance theory of James Gibson enables us to a) to understand being-in-the-world as being-in-nature, b) reconnect man and nature and c) understand the twofold sense of nature in Being and Time. After exploring Heidegger’s concept of being-in-the-world and Gibson’s concept of being-in-nature, we confront Heidegger’s and Gibson’s conception of being-in-the-world and being-in-nature. (...) It will become clear that Gibson’s affordance theory enables an ecological reading of Being and Time, in which the relational character of being-in-the-world is stressed and the exceptional position of human being-in-the-world has to be rejected. Moreover, it becomes clear that an ecological reading of Being and Time enables us to reconnect being-in-the world with being-in-nature, which is rooted in “primordial” nature as its infinite origin. (shrink)

An MV-algebra is an algebra (A, ⊕, ¬, 0), where (A, ⊕, 0) is a commutative monoid and ¬ is an idempotent operation on A satisfying also some additional axioms. Basic algebras are similar algebras that can roughly be characterised as nonassociative (hence, also non-commutative) generalizations of MV-algebras. Basic algebras and commutative basic algebras provide an equivalent algebraic semantics in the sense of Blok and Pigozzi for two recent logical systems. Both are Hilbert-style systems, with implication and negation as (...) the primitive connectives. We present a considerably simpler logic, Lʙ, for basic algebras, where implication and falsum are taken as primitives. We also consider some subvarieties of basic algebras known in the literature, discuss classes of implicational algebras term-equivalent to each of these varieties, and construct axiomatic extensions of Lʙ for which these classes serve as equivalent algebraic semantics. (shrink)

Multialgebras (or hyperalgebras) have been very much studied in the literature. In the realm of Logic, they were considered by Avron and his collaborators under the name of non-deterministic matrices (or Nmatrices) as a useful semantics tool for characterizing some logics (in particular, several logics of formal inconsistency or LFIs) which cannot be characterized by a single finite matrix. In particular, these LFIs are not algebraizable by any method, including Blok and Pigozzi general theory. Carnielli and Coniglio introduced a (...) semantics of swap structures for LFIs, which are Nmatrices defined over triples in a Boolean algebra, generalizing Avron's semantics. In this paper we develop the first steps towards the possibility of defining an algebraic theory of swap structures for LFIs, by adapting concepts of universal algebra to multialgebras in a suitable way. (shrink)

We introduce the bimodal logic , which is the extension of Bennett’s bimodal logic by Grzegorczyk’s axiom □→p)→p and show that the lattice of normal extensions of the intuitionistic modal logic WS5 is isomorphic to the lattice of normal extensions of , thus generalizing the Blok–Esakia theorem. We also introduce the intuitionistic modal logic WS5.C, which is the extension of WS5 by the axiom →, and the bimodal logic , which is the extension of Shehtman’s bimodal logic by Grzegorczyk’s (...) axiom, and show that the lattice of normal extensions of WS5.C is isomorphic to the lattice of normal extensions of. (shrink)

In this paper we show that axiomatic extensions of H. Wansing’s connexive logic $$\textsf{C}$$ ( $$\textsf{C}^{\perp }$$ ) are algebraizable (in the sense of J.W. Blok and D. Pigozzi) with respect to sub-varieties of $$\textsf{C}$$ ( $$\textsf{C}^{\perp }$$ )-algebras. We develop the structure theory of $$\textsf{C}$$ ( $$\textsf{C}^{\perp }$$ )-algebras, and we prove their representability in terms of twist-like constructions over implicative lattices (Heyting algebras). As a consequence, we further clarify the relationship between the aforementioned classes. Finally, taking advantage (...) of the above machinery, we provide some preliminary remarks on the lattice of axiomatic extensions of $$\textsf{C}$$ ( $$\textsf{C}^{\perp }$$ ) as well as on some properties of their equivalent algebraic semantics. (shrink)

It is well-known that da Costa's C-systems of paraconsistent logic do not admit a Blok-Pigozzi algebraization. Still, an algebraic flavored semantics for them has been proposed in the literature, namely using the class of so-called da Costa algebras. However, the precise connection between these semantic structures and the C-systems was never established at the light of the theory of algebraizable logics. In this paper we propose to study the C-systems from an algebraic point of view, and to fill in (...) this gap by using the tools and techniques of the newly developed behavioral approach to abstract algebraic logic. As a by-product of the approach, we also rediscover the bivaluation semantics of the logics. (shrink)

Bu çalışma, Afrika Boynuzu’nda yer alan Eritre devletinin bağımsızlığı konusunun uluslararası alanda gündeme geldiği iki tarih olan 1950 ve 1990’ların başlarını odağa alarak, 1950’lerde onaylanmayan bağımsızlığın 1990’larda onaylanmış olmasını sorun edinmektedir. Bu açıdan, çalışmanın ilgi alanını bağımsızlık gündemine taraf devlet ve örgütlerin faaliyetleri oluşturur. Eritre’nin bağımsızlığı meselesinin kırk yıl ara ile farklı kararlarla sonuçlanmasının, bölgede çıkarları bulunan uluslararası aktörlerin tutumları, Birleşmiş Milletler’in rolü ve kararları ve bölge ülkelerinin iç dinamikleriyle doğrudan ilintili olduğu öne sürülmektedir. Bu bağlamda, Etiyopya ve Eritre’nin tarihsel (...) birlikteliği ve ayrımına odaklanarak, bu iki coğrafyanın ilişkisinin Eritre’nin bağımsızlığı özelinde üstünde durulan bir unsur olduğu gözler önüne serilmektedir. Bu iki ülkenin bir aradalığını ön gören ve görmeyen argüman ve tarihsel gelişmeler ele alınarak, Eritre’nin ikinci bağımsızlık gündeminde, ilkinde olmayan karşılıklı uzlaşı ve Eritre’nin ulusal niteliğinin üzerinde durulmuştur. İkinci olarak, self-determinasyon ve ayrılma konusunda dünyada yaşanan gelişmelerin Eritre’nin bağımsızlığına nasıl etki ettiği analiz edilmektedir. Bu noktada uluslararası örgütler tarafından alınan kararlar ve değişen normlar incelenmektedir. Son olarak Soğuk Savaş’ın tırmanma ve sönümlenme evrelerini merkeze alarak, ülkenin geleceğinde dış aktörlerin bölgesel ve küresel politikalarının nasıl belirleyici olduğu sorgulanmıştır. Özellikle ilk bağımsızlık gündeminin Soğuk Savaş politikaları gereği desteklenemeyecek ve Etiyopya’nın toprak bütünlüğünü savunacak bir konjonktürde, ikincisinin ise blok politikalarının çözüldüğü ve küresel dönüşümün başladığı yeni bir geçiş evresine denk geldiği için dış aktörlerce olumlu karşılandığı ve mümkün hale geldiği ileri sürülmüştür. (shrink)

After Einstein presented his “special theory of relativity” with its marvelous principles, “principle of relativity” and “the constant speed of light”, it led to bizarre implications, such as, time dilation, length contraction, energy-mass conversion, and invariance of the space-time interval, we had trouble to understand these stunning consequences with our very classical ontology, which can be regarded as Aristotelian ontology. Thus, both physicists and philosophers have required a new kind of ontology, capable of explaining the new phenomena. Hermann Minkovski proposed (...) that Einstein’s theory implies a “four-dimensional space-time”, instead of a three-dimensional space with time passing over space. Accordingly, the universe consists of four-dimensional stuff such as events. Event ontology goes together with “block universe argument”. Accordingly, the universe looks like a block of ice or a loaf of bread and in which past, present and future take place together. Therefore, block universe argument makes impossible change, motion, and causal relations. Although they sound strange, “simultaneity of relativity”, an outcome of special theory of relativity, supports event ontology and block universe argument. Nevertheless, there are plenty of difficulties come along with the event ontology. In this paper, I will discuss those handicaps of the argument that events are basic components of the universe.Einstein, “özel görelilik kuramını” ve olağanüstü iki ilkesini, “görelilik ilkesini” ve “ışık hızının sabitliğini”, sunduktan sonra, bu kuramın Aristotelesci ontoloji olarak tabir edebileceğimiz klasik ontolojinin kavramlarıyla anlaşılması zor çıktıları oldu. Örneğin, zamanın genişlemesi, uzunluğun kısalması, enerji-kütle değişimi ve uzam-zaman aralığının değişmezliği gibi. Bu nedenle, hem fizikçiler hem de felsefeciler yeni keşfedilen olguları açıklayabilecek yeni bir ontolojinin gerekliliğini duydular. Hermann Minkovski proposed that Einstein’ın kuramının; zamanın, uzamın dışında olduğu üç-boyutlu uzam yerine “dört-boyutlu bir uzam-zaman” içerdiğini iddia etti. Buna göre evren, “olaylar” gibi dört-boyutlu şeylerden ibaret. Olay ontolojisi, “blok evren argümanı” ile uyuşur. Blok evren argümanına göre, evren bir buz kütlesine ya da bir somun ekmeğe benzer. Geçmiş, şimdi ve gelecek bu bloğun içinde aynı anda yer almaktadır. Bu nedenle blok evren argümanı; değişimi, hareketi ve nedensel ilişkileri imkansız kılar. Bu argüman tuhaf görünse de özel görelilik kuramının bir çıktısı olan “göreliliğin eş zamanlılığı”, olay ontolojisini ve blok evren argümanını destekler. Yanı sıra olay ontolojisi pek çok zorluğu da beraberinde getirir. Bu makalede, olayların evrenin temel yapı taşları olduğu iddiasınının zorluklarını tartışacağım. (shrink)

As a distinctive voice in the current philosophy of technology, postphenomenology elucidates various ways of how technologies “shape” both the world and humans in it. Distancing itself from more speculative approaches, postphenomenology advocates the so-called empirical turn in philosophy of technology: It focuses on diverse effects of particular technologies instead of speculating on the essence of technology and its general impact. Critics of postphenomenology argue that by turning to particularities and emphasizing that technologies are always open to different uses and (...) interpretations, postphenomenology becomes unable to realize how profoundly technology determines our being in the world. Seeking to evaluate the postphenomenological ability to radically reflect on the human being conditioned by technology, I discuss the two most pertinent criticisms of postphenomenology: an “existential” one by Robert C. Scharff and an “ontological” one by Jochem Zwier, Vincent Blok, and Pieter Lemmens. Assessing the ontological alternative, I point to incapacity of Heidegger’s concept of Enframing to do justice to material technologies. Simultaneously, I acknowledge the necessity of speculating on technology as transcending concrete technologies. Such speculating would be instrumental in reviving Ihde’s idea of non-neutrality of technology in its full philosophical potency. (shrink)

Frankfurt Okulu'nun kurucu üyelerinden ve 20. yüzyıl eleştirel düşünce dünyasının köşe taşlarından biri olan Herbert Marcuse'nin 1969 yılında, bütün dünyanın halk ayaklanmalarıyla ve toplumsal hareketlerle çalkalandığı sıcak günlerde yayımlanan kitabı Özgürlük Üzerine Bir Deneme ele aldığı konuları ve tespitleriyle günümüzde de önemini koruyor. Bu kısa ama çarpıcı makale, Sol'un teorik ve pratik yeniden inşası ve eleştirel düşüncenin doğru mecralarda ilerleyişinin sağlanması açısından mutlaka okunması ve derinlemesine irdelenip tartışılması gereken eserlerin başında gelir. İleri endüstri toplumuyla rekabete giren sosyalist blok, bu (...) rekabetin bir sonucu olarak, kendi hedeflerinden saparak rekabet ettiği sistemin değerlerinin egemen olduğu bir sisteme kaymıştır. Bu kayma, Marcuse'ye göre, geleneksel özgürlük anlayışını geçersiz kılmıştır. Artık, insanların gereksinimleri özgürce kendileri tarafından geliştirilmediği için, “herkesten yeteneğine göre, herkese gereksinimine göre” ilkesinin işe yaramayacağı bir aşamadayız. Öyle ki, kendilerinin özgürce geliştirdikleri gereksinimlere sahip olmadıkları sürece, üretim araçlarının işçiler tarafından sahiplenildiği durumda bile, toplum baskıcı bir toplum olabilir. Dolayısıyla, özgürlüğünün olanakları başka yerlerde aramak gerekir. Marcuse de, Özgürlük Üzerine Bir Deneme kitabında, bu yeni durum içerisinde özgürlüğün yeni olanaklarını aramaktadır. (shrink)

Two famous negative results about da Costa’s paraconsistent logic ${\mathscr {C}}_1$ (the failure of the Lindenbaum–Tarski process [44] and its non-algebraizability [39]) have placed ${\mathscr {C}}_1$ seemingly as an exception to the scope of Abstract Algebraic Logic (AAL). In this paper we undertake a thorough AAL study of da Costa’s logic ${\mathscr {C}}_1$. On the one hand, we strengthen the negative results about ${\mathscr {C}}_1$ by proving that it does not admit any algebraic semantics whatsoever in the sense of (...) class='Hi'>Blok and Pigozzi (a weaker notion than algebraizability also introduced in the monograph [6]). On the other hand, ${\mathscr {C}}_1$ is a protoalgebraic logic satisfying a Deduction-Detachment Theorem (DDT). We then extend our AAL study to some paraconsistent axiomatic extensions of ${\mathscr {C}}_1$ covered in the literature. We prove that for extensions ${\mathcal {S}}$ such as ${\mathcal {C}ilo}$ [26], every algebra in ${\mathsf {Alg}}^*({\mathcal {S}})$ contains a Boolean subalgebra, and for extensions ${\mathcal {S}}$ such as,, or [16, 53], every subdirectly irreducible algebra in ${\mathsf {Alg}}^*({\mathcal {S}})$ has cardinality at most 3. We also characterize the quasivariety ${\mathsf {Alg}}^*({\mathcal {S}})$ and the intrinsic variety $\mathbb {V}({\mathcal {S}})$, with,, and. (shrink)

Because corporate social responsibility can be beneficial to both companies and its stakeholders, interest in factors that support CSR performance has grown in recent years. A thorough integration of CSR in core business processes is particularly important for achieving effective long-term CSR practices. Here, we explored the individual CSR-related competencies that support CSR implementation in a corporate context. First, a systematic literature review was performed in which relevant scientific articles were identified and analyzed. Next, 28 CSR directors and managers were (...) interviewed. The literature review complemented with interview data resulted in the following eight distinct CSR-related competencies: Anticipating CSR challenges; Understanding CSR-relevant systems and subsystems; Understanding CSR-relevant standards; CSR management competencies, including Leading CSR programs, Managing CSR programs, and Identifying and realizing CSR-related business opportunities; Realizing CSR-supportive interpersonal processes; Employing CSR-supportive personal characteristics and attitudes; Personal value-driven competencies, including Ethical normative competencies, Balancing personal ethical values and business objectives, and Realizing self-regulated CSR-related behaviors and active involvement; and Reflecting on personal CSR views and experiences. Based on these results, implications for further research on this topic, as well as implications for practitioners, are discussed. (shrink)

We show that the properties of [relative] semisimplicity and congruence 3-permutability of a [quasi]variety with equationally definable [relative] principal congruences (EDP[R]C) can be characterized syntactically. We prove that a quasivariety with EDPRC is relatively semisimple if and only if it satisfies a finite set of quasi-identities that is effectively constructible from any conjunction of equations defining relative principal congruences in the quasivariety. This in turn allows us to obtain an ‘axiomatization’ of relatively filtral quasivarieties. We also show that a variety (...) is 3-permutable and has EDPC if and only if there is a single pair of quaternary terms satisfying two simple equations, and whose equality defines principal congruences in the variety. Finally, we combine both results to obtain a neat characterization of semisimple, 3-permutable varieties with EDPC, which is applied to solve a problem posed by Blok and Pigozzi in the third paper of their series on varieties with EDPC. (shrink)

Organized for the third time, the elections for the European Parliament at direct universal suffrage, in June 1989, had the following main characteristics: a still weak turnout, a progress for the socialist parties in most countries, a rather distinct rise of the Environmentalists and an indisputable rise of some far-right parties.In Belgium, the results cannot be compared exclusively with those of the 1984 European election. They must be seen in the continuation of the 1985 and 1987 general elections.Then, the main (...) characteristics are as follows : a near disappearance of the farleft lists associated with the absence of communist lists, a very marked rise of the Environmentalists, stronger in the Walloon Region than in Flanders, a progress for the Christian lists, especially for the C.V.P. in the Flemish districts, a setback for the Flemisch Socialists and a progress for the French-speaking Socialists in comparison with the 1984 poll. This progress, however, was not important enough as to enable them to regain their 1987 level. The Liberals are experiencing a setback compared with 1987 in the three regions of the country and, as far as the P.R.L. is concerned, even in comparison with 1984 and 1985.The Volksunie is suffering a serious setback, that is certainly benefitting to the Vlaams Blok, which, however, is also attracting voters from different political origins on issues similar to those of the far right.The analysis also contains a comparison between the results of the European election and those of the election for the Council of the Brussels-Capital Region, in a set of three districts where the voters were exactly the same. (shrink)

Are there universal values of right and wrong, good and bad, shared by virtually every human? The tradition of natural law argues that there is. Drawing on the work of psychoanalyst Melanie Klein, whose analyses have touched upon issues related to original sin, trespass, guilt, and salvation through reparation, in this 2006 book C. Fred Alford adds an extra dimension to this argument: we know natural law to be true because we have hated before we have loved and have wished (...) to destroy before we have wanted to create. Natural law is built upon the desire to make reparation for the goodness we have destroyed, or have longed to destroy. Through reparation, we earn salvation from the most hateful part of ourselves, that which would destroy what we know to be good. (shrink)

Монографія "Функціональність релігії: український контекст".

La réception tardive de l'oeuvre de Ernst Troeltsch en France nous a privés d'une analyse du christianisme originale et féconde. Elle nuance et enrichit ce que nous savons, au travers de la réflexion wébérienne notamment, des relations de la religion chrétienne à la modernité. Contre les interprétations usuelles qui datent l'émergence de cette dernière de la Renaissance et de la Réforme, Troeltsch insiste sur la centralité des Lumières comme marquant la fin de la civilisation ecclésiastique ; c'es l'évanouissement de la (...) référence structurante à l'ordre divin qui inau­gure selon lui l'entrée dans le monde moderne. Sur la base de ce constat, il s'agit pour Troeltsch de trouver une définition du christianisme qui soit en adéquation avec les conditions de l'existence moderne. Dans son ouvrage datant de 1912, « Les doctrines sociales des Églises et groupes chrétiens », il examine les types « Église », « secte » et « mystique » pré­sents depuis les origines évangéliques, circonscrivant trois modes socio­logiques et éthiques qu'il confronte à la modernité. Aucun n'est seul adéquat. Pour durer, le christianisme devra, selon Troeltsch, renoncer à la réalisation d'un programme éthique d'essence religieuse au sein du monde et accepter le cantonnement de la foi dans l'intimité des cons­ciences, tout en s'articulant à des réalités socio-culturelles à l'échelle de tous dont les formes et les transformations internes sont toujours à repenser.The delayed reception of the work of Ernst Troeltsch in France deprived us of an analysis of an original and fertile Christianity. It nuances and enriches what we know, especially through a Weberian reflection, about the relations of the Christian religion and modernity. Against the customary interpretations that date the emergence of the latter from the Renaissance and the Reformation, Troeltsch insists on the centrality of the Enlightenment as marking the end of an ecclesiastical civilization. It is the disappearance of the structuring reference to the divine order that inaugurated, according to him, the entrance to the modern world. On the basis of this observation, Troeltsch is interested in finding a definition of Christianity that would be in harmony with the conditions of modern existence. In his work dating from 1912, "The social doctrines of the Churches and Christian groups ", he examines the categories "Church", "sect", and "mystic" that were present evangelical times, circumscribing three sociological and ethical modes, which he confronts with modernity. No single one is adequate. In order to endure, Christian­ity should, according to Troeltsch, renounce the attempt to set up an ethical program of a religious essence in the heart of the world and accept the establishment of a faith in the intimacy of consciences, all the while adapting its« to socia-cultural realities applicable to everyone, of which the forms and internal transformations are always to be re-thought. (shrink)

Stiff Person Syndrome is a rare autoimmune disorder associated with antibodies against glutamic acid decarboxylase, the key enzyme in γ -aminobutyric acid synthesis. In order to investigate the role of cerebral benzodiazepinereceptor binding in SPS, we performed [ 11 C]flumazenil positron emission tomography in a female patient with SPS compared to nine healthy controls. FMZ is a radioligand to the postsynaptic central benzodiazepine receptor which is co-localized with the GABA-A receptor. In the SPS patient, we found a global reduction of (...) cortical FMZ binding. In addition, distinct local clusters of reduced radiotracer binding were observed. These data provide first in vivo evidence for a reduced postsynaptic GABA-A receptor availability which may reflect the loss of GABAergic neuronal inhibition in SPS. (shrink)

Quantum theory does not only predict probabilities, but also relative phases for any experiment, that involves measurements of an ensemble of systems at different moments of time. We argue, that any operational formulation of quantum theory needs an algebra of observables and an object that incorporates the information about relative phases and probabilities. The latter is the (de)coherence functional, introduced by the consistent histories approach to quantum theory. The acceptance of relative phases as a primitive ingredient of any quantum theory, (...) liberates us from the need to use a Hilbert space and non-commutative observables. It is shown, that quantum phenomena are adequately described by a theory of relative phases and non-additive probabilities on the classical phase space. The only difference lies on the type of observables that correspond to sharp measurements. This class of theories does not suffer from the consequences of Bell's theorem (it is not a theory of Kolmogorov probabilities) and Kochen–Specker's theorem (it has distributive “logic”). We discuss its predictability properties, the meaning of the classical limit and attempt to see if it can be experimentally distinguished from standard quantum theory. Our construction is operational and statistical, in the spirit of Copenhagen, but makes plausible the existence of a realist, geometric theory for individual quantum systems. (shrink)

According to history texts, philosophers searched for a unifying natural law whereby natural phenomena and numbers are related. More than 2300 years ago, Aristotle postulated that nature requires minimum energy. More than 220 years ago, Euler applied the minimum energy postulate. More than 200 years ago, Lagrange provided a mathematical “proof” of the postulate for conservative systems. The resulting Principle of Least Action served only to derive the differential equations of motion of a conservative system. Then, 170 years ago, Hamilton (...) presented what he claimed to be a “general method in dynamics.” Hamilton's resulting “Law of Varying Action” was supposed to apply to both conservative and non-conservative systems and was supposed to yield either the differential equations of motion or the integrals of those differential equations. However, no direct evaluation of the integrals of motion ever resulted from Hamilton's law of varying action. In 1975, a scant 29 years ago, following five years of controversy with engineer mechanicians, Dr. Wolfgang Yourgrau, Editor, Foundations of Physics, published my first paper based on Aristotle's postulate, without mathematical proof. That and subsequent papers present, through applications, a true “general method in dynamics.” In this essay, I present the mathematical proof that is missing from my 1975 and subsequent papers. Six fundamental integrals of analytical mechanics are derived from Aristotle's postulate. First, however, Hamilton must be revisited to show why his H function and his “force function” prevents the law of varying action from being the general method in dynamics that he claimed it to be. I have found that Hamilton’s Law of Varying Action (HLVA), as Hamilton presented it, cannot be applied to systems for which the force function is non-integrable. In 1972, Dr. B.E. Gatewood and Dr. D.P. Beres (then a graduate student) discovered that the end-point term associated with the principle of least action does not vanish. I named the new equation, “the general energy equation.” In 1973, because I was doing with it what Hamilton claimed could be done with HLVA, I simply assumed that this new equation was HLVA. I gave the new equation the misnomer HLVA. In 2001, I learned that I had made a grave mistake. I found that HLVA is at most a special case of the general energy equation. My interpretation of Aristotle's postulate permits one to by-pass the differential equations of motion completely for both conservative and non-conservative systems (no calculus of variations). (shrink)

least this was his later view. He had begun with the more obvious but more naive view that need was the key to the process and that removal of the need ...

The ‘beautiful axiom’ to which Dickens refers is a central feature of Thomas Hobbes' thinking but its precise role in his moral philosophy remains unclear. I shall here attempt both to dispel the unclarity and to evaluate the adequacy of the position that emerges. Given the high level of contemporary interest in Hobbes' thought, both within and beyond philosophical circles, this is an enterprise of considerable importance. None the less, my interest is not merely interpretative, since the assessment of Hobbes' (...) attitude to ‘the beautiful axiom’ raises important and difficult questions about what might be termed the preconditions of morality. (shrink)

The author examines "the prelude" by wordsworth in order to illuminate precisely how wordsworth believed the spirit, Particularly as it manifested itself in the works of nature, Could influence and shape the mind of man. (staff).

We describe the development, testing, and formative evaluation of nine role-play scenarios for teaching central topics in the responsible conduct of research to graduate students in science and engineering. In response to formative evaluation surveys, students reported that the role-plays were more engaging and promoted deeper understanding than a lecture or case study covering the same topic. In the future, summative evaluations will test whether students display this deeper understanding and retain the lessons of the role-play experience.