Using electromagnetic levitation in combination with the oscillating drop technique and drop calorimeter method, the surface tensions and specific heats of undercooled liquid Co-10 wt% Mo, Co-26.3 wt% Mo, and Co-37.6 wt% Mo alloys were measured. The containerless state during levitation produces substantial undercoolings up to 223 K , 213 K and 110 K respectively for these three alloys. In their respective undercooling ranges, the surface tensions were determined to be 1895 m 0.31, 1932 m 0.33, and 1989 m 0.34 (...) mN m m 1 . According to the Butler equation, the surface tensions of these three Co-Mo alloys were also calculated, and the results agree well with the experimental data. The specific heats of these three alloys are determined to be 41.85, 43.75 and 44.92 J mol m 1 K m 1 . Based on the determined surface tensions and specific heats, the changes in thermodynamics functions such as enthalpy, entropy and Gibbs free energy are predicted. Furthermore, the crystal nucleation, dendrite growth and Marangoni convection of undercooled Co-Mo alloys are investigated in the light of these measured thermophysical properties. (shrink)

Abstract. There is an ongoing debate in the philosophical and jurisprudential literature regarding the nature and possibility of Contract theory. On one hand, are those who argue (or assume) that there is, or should be, a single, general, universal theory of Contract Law, one applicable to all jurisdictions and all times. On the other hand, are those who assert that Contract theory should be localized to particular times and places, perhaps even with different theories for different types of agreements. This (...) article considers one facet of this debate: evaluating the relevance of the fact that the remedies available for breach of contract can vary significantly from one jurisdiction to another. This wide variation in remedies for breach of a (contractual) promise is one central difference between promises in morality and enforceable agreements in law. The article asserts that variation of remedies strongly supports the conclusion that there is (and can be) no general, universal theory of Contract Law. (shrink)

The apolipoprotein E gene plays an important role in the pathogenesis of Alzheimer's disease , and amyloid plaque comprised mostly of the amyloid-beta peptide ) is one of the major hallmarks of AD. However, the relationship between these two important molecules is poorly understood. We examined how A treatment affects APOE expression in cultured cells and tested the role of the transcription factor NF-B in APOE gene regulation. To delineate NF-B's role, we have characterized a 1098 nucleotide segment containing the (...) 5'-flanking region of the human APOE gene . Sequence analysis of this region suggests the presence of two potential NF-B elements. To demonstrate promoter activity, the region was cloned upstream of a promoterless luciferase gene. This segment was able to drive expression of luciferase in transient transfections of human fetal glial cells. Promoter activity was stimulated twofold by A treatment. Pretreatment with double-stranded DNA decoy oligonucleotides against NF-B reduced A stimulation. Deletion and mutagenetic analyses demonstrated that the distal NF-B element was functional and showed a strong DNA-protein complex band in gel shift analysis, similar to that from control NF-B consensus element. An anti-inflammatory and anti-NF-B drug, sodium salicylate, significantly blocked A-induced APOE promoter function. Our data provide evidence that upregulation of APOE by A in astroglial cells is mediated by an NF-B-element present in the 5'-flanking region of the APOE gene. (shrink)

Twenty essays based on papers delivered at the International Symposium on the Varieties of Marxism held at the VanLeer Jerusalem Foundation 16-19 June 1974 and dedicated to the memory of George Lichtheim, an eminent historian of Marxism. The overall message is that, far from being a monolithic, crystal clear explanation of the universe, Marxism continues to be a multi-faceted ideology with diverse expressions in diverse cultures, spawning a wide spectrum of "official" prophets, each sincerely convinced that he or she is (...) correct and all others are wrong. Kamenka in his contribution, while somewhat too easily chiding Marx for being too absolute in his prescriptive ethics, suggests that the varieties of Marxism stem from "ambiguities and tensions at the very heart of Marx’s thought," and that it "speaks to us, like Christianity, with many voices and in accents that are at best suggestive and at worst deliberately seductive rather than precise". Eight of the articles, including that of Kamenka, can be described as being theoretical, concerned about clarification of such questions as the methodology of Marx, the place of Engels in Marxism, Marxian Ethics, Totality in Lukacs and Adorno, Sartrean Marxism, the transformation of the concept of practice from Kant via Marx to Lukacs, and the reawakened interest in the "Asiatic Mode of Production" as a stage in the evolution towards Socialism. Ten articles discuss the manifestations of Marxism in Western Europe, Russia, Italy, Zionism, the Arab world, Czechoslovakia, Poland, Latin America, and the radical student movements of the 1960s in the United States, France, and Israel. Two other articles examine the differences and reasons for differences with Marx expressed by two major commentators, Trotsky and Mao. (shrink)

Over the past thirty years, academic dialogues on the relationships between the sciences and religions have flourished, albeit primarily within Judeo-Christian historical, theological and philosophical contexts. Can a Hindu tradition be brought into this dialogue? The Bhagavata Purana is one of the most well-known sacred texts of India, and biology, Darwinism in particular, has become one of the most spirited areas of the science and religion dialogue in academia, as well as in the popular media. This thesis examines the possibility, (...) scope and foundational topics involved in a dialogue between Vaisnava-Hindu theology as found in the Bhāgavata, and the theoretical, philosophical and theological issues surrounding contemporary biology. To examine the possibility and scope of a Bhāgavata-science dialogue, I focus on the theological, ontological, epistemological and teleological presuppositions that each tradition bring to the study of nature, outlining the similarities and differences in their approaches. I establish the grounds for further discussion through a comparative analysis of terms such as "consciousness," "knowledge" and "goal of knowledge" as they appear in the Bhagavata and noteworthy Darwinian texts. My argument is that although prima facie the two traditions appear different in their philosophical, scientific and theological approaches, there are a number of areas of common interest and parallels, especially in their epistemologies and teleologies. In the case of genuine differences, such as their views on the ontology of consciousness, I demonstrate the possibility of reconciliation. Clarifying the conceptual differences, establishing parallels and demonstrating areas of common interests opens the possibility and widens the scope for further dialogue. (shrink)

When making inferences about similar others, people anchor and adjust away from themselves. However, research on relational self theory suggests the possibility of using knowledge about others as an anchor when they are more similar to a target. We investigated whether social inferences are made on the basis of significant other knowledge through an anchoring and adjustment process, and whether anchoring on a significant other is more effortful than anchoring on the self. Participants answered questions about their likes and habits, (...) as well as the likes and habits of a significant other, a target similar to their significant other, and a yoked control. We found that prediction differences between the significant other and similar target led to longer response times, and we found the opposite effect for self and target differences, suggesting anchoring and adjustment from the significant other rather than the self. These effects were moderated by the source-relative salience of the dimension being evaluated. The evidence was mixed with respect to the question of whether anchoring on a significant other is more effortful than anchoring on the self. (shrink)