Heterotrimeric G proteins, consisting of α, β, and γ subunits, couple ligand-bound seven transmembrane domain receptors to the regulation of effector proteins and production of intracellular second messengers. G protein signaling mediates the perception of environmental cues in all higher eukaryotic organisms, including yeast, Dictyostelium, plants, and animals. The nematode Caenorhabditis elegans is the first animal to have complete descriptions of its cellular anatomy, cell lineage, neuronal wiring diagram, and genomic sequence. In a recent paper, Jansen et al.(1) used sequence (...) searches of the C. elegans genome database to identify all heterotrimeric G protein genes (20 Gα, 2 Gβ, 2 Gγ). C. elegans encodes one ortholog of each of the four Gα classes found in metazoans and 16 new Gα genes. The orthologous genes are widely expressed, whereas 14 of the divergent Gα genes are almost exclusively expressed in sensory neurons where they may regulate perception and chemotaxis.BioEssays 21:713–717, 1999. © 1999 John Wiley & Sons, Inc. (shrink)

Peter Abelard (1079–1142 ce) was the most wide‐ranging philosopher of the twelfth century. He quickly established himself as a leading teacher of logic in and near Paris shortly after 1100. After his affair with Heloise, and his subsequent castration, Abelard became a monk, but he returned to teaching in the Paris schools until 1140, when his work was condemned by a Church Council at Sens. His logical writings were based around discussion of the “Old Logic”: Porphyry's Isagoge, aristotle'S Categories and (...) On Interpretation and boethius'S textbook on topical inference. They comprise a freestanding Dialectica (“Logic”; probably c.1116), a set of commentaries (known as the Logica [Ingredientibus], c. 1119) and a later (c. 1125) commentary on the Isagoge (Logica Nostrorum Petititoni Sociorum or Glossulae). In a work Abelard called his Theologia, issued in three main versions (between 1120 and c.1134), he attempted a logical analysis of trinitarian relations and explored the philosophical problems surrounding God's claims to omnipotence and omniscience. The Collationes (“Debates,” also known as “Dialogue between a Christian, a Philosopher and a Jew”; probably c.1130) present a rational investigation into the nature of the highest good, in which the Christian and the Philosopher (who seems to be modeled on a philosopher of pagan antiquity) are remarkably in agreement. The unfinished Scito teipsum (“Know thyself,” also known as the “Ethics”; c.1138) analyses moral action. (shrink)

The authors describe the ethical considerations underlying the inclusion of mental health services into a prioritized health care system. The Oregon Health Plan is a process for defining and delivering basic health services to an entire state. As the plan was developed, the mental health community needed to decide whether or not to participate in the process and, if so, how. Lengthy discussions among mental health consumers, family members, and providers led to a strategy that emphasized the integration of mental (...) health and chemical dependency services into a comprehensive and universal health care program. This approach appears to have achieved relative parity for mental health. (shrink)

Only 27 percent of Americans in a 1995 Harris poll said they had read or heard “quite a lot” about genetic tests. Nonetheless, 68 percent said they would be either “very likely” or “somewhat likely” to undergo genetic testing even for diseases “for which there is presently no cure or treatment.” Perhaps most astonishing, 56 percent found it either “very” or “somewhat acceptable” to develop a government computerized DNA bank with samples taken from all newborns, and their names attached to (...) the samples. This does not necessarily mean the public is unconcerned about genetic privacy. More likely it means that the public is still uninformed about the risks associated with genetic testing, and has not thought at all about the risks involved in storing identifiable DNA samples.A central question presented by genetic screening and testing is whether the genetic information so obtained is different in kind from other medical information, and, if so, whether this means that it should receive special legal protection. (shrink)

Only 27 percent of Americans in a 1995 Harris poll said they had read or heard “quite a lot” about genetic tests. Nonetheless, 68 percent said they would be either “very likely” or “somewhat likely” to undergo genetic testing even for diseases “for which there is presently no cure or treatment.” Perhaps most astonishing, 56 percent found it either “very” or “somewhat acceptable” to develop a government computerized DNA bank with samples taken from all newborns, and their names attached to (...) the samples. This does not necessarily mean the public is unconcerned about genetic privacy. More likely it means that the public is still uninformed about the risks associated with genetic testing, and has not thought at all about the risks involved in storing identifiable DNA samples.A central question presented by genetic screening and testing is whether the genetic information so obtained is different in kind from other medical information, and, if so, whether this means that it should receive special legal protection. (shrink)

Philosophy of mind has made substantial progress on biologically-rooted approaches to understanding the mind and subjectivity through the enactivist perspective, but research on subjectivity within neuroscience has not kept apace. Indeed, we possess no principled means of relating experiential phenomena to neurophysiological processes. Here, we present the Nested States Model as a framework to guide empirical investigation into the relationship between subjectivity and neurobiology. Building on recent work in phenomenology and philosophy of mind, we develop an account of experiential states (...) as layered, or nested. We argue that this nested structure is also apparent in brain activity. The recognition of this structural homology — that both experiential and brain states can be characterized as systems of nested states — brings our views of subjective mental states into broad alignment with our understanding of general principles and properties of brain activity. This alignment enables a more systematic approach to formulating specific hypotheses and predictions about how the two domains relate to one another. (shrink)

The book describes the features that vibrations and waves of all sorts have in commonand includes examples of mechanical, acoustical, and optical manifestations of these phenomena thatunite various parts of physics.

The Iran-United States Claims Tribunal is the most important source of international arbitral decisions for at least the past half century, and its decisions have contributed significantly to the development of international law and the law of international commercial transactions. Judge Aldrich, who is the only member of the Tribunal to have served since its inception in 1981, has written what will be recognised as the definitive book about the jurisprudence of the Tribunal. The book seeks to preserve and to (...) make accessible the substantial body of Awards and Decisions rendered by the Tribunal during the years since it was established in. Its hundreds of Awards and Decisions may be individually consulted but hitherto there has been no detailed analytical guide through the vast published work of the Tribunal. This important new book provides a two-fold service. First, it quotes from the most significant Awards and Decisions at sufficient length so that both their substance and the reasoning of the Tribunal can be understood from access to the present volume alone. Second, it organizes and summarizes the decisions to facilitate finding complete texts relevant to any particular issue. (shrink)

As Canadian experience back to the Great Depression reveals, monetary policy can have potent impact on social welfare. Although in recent years Canadian monetary policy has been managed—with little public understanding—for the benefit of wealthy interests, earlier Canadian federal governments, largely through the monetary powers of the Bank of Canada established in 1935, not only financed participation in World War II, but also in the post-war period created the nation's remarkable social programs. Changes in monetary policy beginning in the late (...) 1970s have shifted control over the money system almost entirely to the private commercial banks, and have contributed substantially to severe erosion of those programs. Changes in current monetary policy, shown from past experience to be feasible, could play a key role in financing restoration and improvement of social programs. Some implications for the US and other nations are spelled out. (shrink)