Abstract:The Wilderness Act characterizes wilderness as "an area where the earth and its community of life are untrammeled by man…" How crucial to the idea of wilderness is its location on our home planet? If an extraterrestrial community of life were discovered, it would certainly be untrammeled by man. Does it make sense to extend the idea of wilderness to encompass other planets and their potential ecosystems? Many values are associated with wilderness, supporting arguments for the need to preserve or (...) protect it. Some arguments seem readily applicable to extraterrestrial habitats, while others may be specific to Earth. I offer an overview of values attributed to wilderness, and consider the extent to which these values may or may not apply beyond the Earth. Following Rolston's claim that nature is not only of value, but a source of values, extraterrestrial wildernesses can be esteemed as instances of a cosmic evolutionary process. (shrink)

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Hal Draper was born in Brooklyn in 1914, to East European Jewish immigrant parents. In 1932 he became active in the Student League for Industrial Democracy and the Socialist Party youth section, the Young People's Socialist League. A leader of the Student Strikes Against War, he became an associate editor of Socialist Appeal in 1934. In 1937, the socialist youth, led by Draper and Ernest Erber, voted to support the Fourth International after Trotsky's followers entered the Socialist Party. Draper opposed (...) the subsequent split in the SP, which Trotsky and James P. Cannon deliberately provoked, but left with the Trotskyists and became the national secretary of the Socialist Workers’ Party's youth group, a member of its first National Executive, and the secretary of the party's National Education Department. Irving Howe, a YPSL comrade, later recalled his admiration. Draper was, ‘genuinely learned in Marxism, with a mind that marched from one theorem to another as if God were clearing his way’, a youth leader who ‘would speak for us with a razored lucidity’ in debate with the Stalinists. Draper was part of the minority when the SWP split in 1940 over two issues, the ‘Russian question’ and the ‘bureaucratic conservatism’ of James P. Cannon's internal party regime. Draper became a founder member of the Workers’ Party, led by Max Shachtman, which developed an analysis of the Soviet Union as neither a ‘workers’ state’ nor state capitalist but a new form of exploiting class society, bureaucratic collectivism. The WP refused to ‘defend the Soviet Union’ and developed a distinctive democratic revolutionary Marxism, summed up by the slogan, ‘Neither Washington nor Moscow but the Third Camp of Independent Socialism!’. And, in reaction to Cannon's monolithic conception of the party, the WP developed a highly democratic internal political culture marked by ‘an atmosphere of genuine tolerance’ unceasing internal debate carried in the public press, and untrammelled rights for minorities. (shrink)

We refine the constructions of Ferrante-Rackoff and Solovay on iterated definitions in first-order logic and their expressibility with polynomial size formulas. These constructions introduce additional quantifiers; however, we show that these extra quantifiers range over only finite sets and can be eliminated. We prove optimal upper and lower bounds on the quantifier complexity of polynomial size formulas obtained from the iterated definitions. In the quantifier-free case and in the case of purely existential or universal quantifiers, we show that Ω quantifiers (...) are necessary and sufficient. The last lower bounds are obtained with the aid of the Yao-Håstad switching lemma. (shrink)

This is the address given by Alan R Johnson, an alumnus of OCMS, to inaugurate the J. Philip Hogan Chair of World Mission. The Hogan chair represents a connection between Assemblies of God World Missions and the Assemblies of God Theological Seminary where in a proactive and catalytic fashion the process of engaging with subjects of missiological importance can be undertaken. The author argues that thinking about missions is a communal activity that requires continual reflection.

Anamniote animals, such as fish and amphibians, are able to regenerate damaged CNS nerves following injury, but regeneration in the mammalian CNS tracts, such as the optic nerve, does not occur. However, severed adult mammalian retinal axons can regenerate into peripheral nerve segments grafted into the brain and this finding has emphasized the importance of the environment in explaining regenerative failure in the adult mammalian CNS. Following lesions, regenerating axons encounter the glial cells, oligodendrocytes and astro‐cytes, and their derivatives, respectively (...) myelin and the astrocytic scar. Experiments to investigate the influence of these components on axon growth in culture have revealed cell‐surface and extracellular matrix molecules that inhibit axon extension and growth cone motility. Structural and functional characterization of these ligands and their receptors is underway, and may solve the interesting neurobiological conundrum posed by the failure of mammalian CNS regeneration. Simultaneously, this might allow new possibilities for treatment of the severe clinical disabilities resulting from injury to the brain and spinal cord. (shrink)

The practice of clinical medicine is inextricably linked with the need for moral values and ethical principles. The study of medical ethics is, therefore, rightly assuming an increasingly significant place in undergraduate and postgraduate medical courses and in allied health curricula. Making Sense of Medical Ethics offers a no-nonsense introduction to the principles of medical ethics, as applied to the everyday care of patients, the development of novel therapies and the undertaking of pioneering basic medical research. Written from a practical (...) rather than a philosophical perspective, the authors call upon their extensive experience of clinical practice, research and teaching to illustrate how ethical principles can be applied in different "real-life" situations. Making Sense of Medical Ethics encourages readers to understand the principles of medical ethics as they apply to clinical practice; explore and evaluate common misconceptions; consider the ethics underlying any medical decision; and as a result, to realize that a good appreciation of medical ethics will help them to practice more effectively in the future. (shrink)