Are living organisms--as Descartes argued--just machines? Or is the nature of life such that it can never be fully explained by mechanistic models? In this thought-provoking and controversial book, eminent geophysicist Walter M. Elsasser argues that the behavior of living organisms cannot be reduced to physico-chemical causality. Suggesting that molecular biology today is at the same point as Newtonian physics on the eve of the quantum revolution, Elsasser lays the foundation for a theoretical biology that points the way toward (...) a natural philosophy of organic life. Explicitly repudiating "vitalism" (the notion that the laws of nature need to be modified when applied to living organisms), Elsasser argues instead that the structural complexity of even a single living cell is "transcomputational"--that is, beyond the power of any imaginable system to compute. Beginning from this insight, Elsasser leads the reader through a step-by-step process that ultimately arrives at the conclusion that living and non-living matter are separated by "a no-man's land of irrationality." Trained in Germany as a physicist, Elsasser first pondered the implications of quantum mechanics for biology as early as 1951. The more closely he studied the inherent complexity of life, the more skeptical he became of the reductionist view of organisms as tiny machines. "An organism," he concluded, "is a source of causal chains which cannot be traced beyond a terminal point because they are lost in the unfathomable complexity of the organism." Like the physicist who works within the bounds of an unfathomable universe, Elsasser argues, the biologist must seek answers within a system that is no less unfathomable. (shrink)

This is a new release of the original 1926 edition.

This essay—originally a presentation at the annual conference of the Newman Association of America at Saint Anselm College in July 2011—explores Newman’svision of the residential college as the place of formation in the process of education and claims that many of Newman’s ideas, far from being out-dated, have an important place in higher education today.

Objectives: The introduction of the living donation in organ transplantation introduces important new psychological conflicts and ethical questions in the transplantation process. Operation related risks, as well as dependencies in the family structure, generate considerable pressure on potential donors. The aim of the study was to reconstruct the determinants of willingness to donate before transplantation.Methods: Evaluation of 20 taped and transcribed interviews oriented to current approaches in qualitative interview research. The approach used is based on grounded theory, qualitative content analysis, (...) and the concept of the ideal type.Results: Before surgery, “openly motivated” donors push for an operation, leaving no room for ambivalence in the evaluation process. They idealise the relationship with the recipient, and link their donation with the individual—partly in subconscious expectations and wishes. In contrast, “openly ambivalent” donors formulate their anxieties and express arguments against donation.Conclusions: Statements that claim ambivalence towards donation or utterance of arguments against donation indicate earlier coercion. Before transplantation, potential donors should have the opportunity to discuss their emotional situation to help their decision making process. (shrink)

Walter Kendrick traces the relatively recent concept of pornography—the word was not coined until the late 18th century—which became a public issue once the printing press gave ordinary people access to the erotica of the Greeks and Romans, the art and literature of the French enlightenment, and the poems of the Earl of Rochester and John Cleland's _Fanny Hill_. From the secret museums to the pornography trials of _Madame Bovary_ and _Lady Chatterly's Lover_, to Mapplethorpe, cable TV, and the (...) Internet, Kendrick explores how conceptions of pornography relate to issues of freedom of expression and censorship. (shrink)

The author reflects on the ABC news documentary series Boston Med­—both what it achieved, and what it could have achieved.

Rehabilitation For Traumatic Brain Injury (TBI) is a state-of-the-science review of the effectiveness of rehabilitation interventions.