It is only when mixing two or more pure substances along a reversible path that the entropy of the mixing can be made physically manifest. It is not, in this case, a mere mathematical artifact. This mixing requires a process of successive stages. In any finite number of stages, the external manifestation of the entropy change, as a definite and measurable quantity of heat, isa fully continuous function of the relevant variables. It is only at an infinite and unattainable limit (...) thata non-uniform convergence occurs. And this occurs when considered in terms of the number of stages together with a distinguishability parameter appropriate to the particular device which is used to achieve reversibility. These considerations, which are of technological interest to chemical engineers, resolve a paradox derived in chemical theory called Gibbs'' Paradox. (shrink)

As a result of the increase in genetic testing and the fear of discrimination by insurance companies, employers, and society as a result of genetic testing, the disciplines of ethics, public health, and genetics have converged. Whether relatives of someone with a positive predictive genetic test should be notified of the results and risks is a matter urgently in need of debate. Such a debate must encompass the moral and ethical obligations of the diagnosing physician and the patient. The decision (...) to inform or not will vary depending on what moral theory is used. Utilising the utilitarian and libertarian theories produces different outcomes. The principles of justice and non-maleficence will also play an important role in the decision. (shrink)

In ''''A Defense of Evolutionary Ethics'''' (1986), Robert J. Richardsendeavors to explain how moral ''oughts'' can be derived from thescience of evolutionary biology without committing the dreadednaturalistic fallacy. First, Richards assumes that ''ought'' as usedin ethical discourse bears the same meaning as ''ought'' used anywherein science, indicating merely that certain results or behaviors arepredicted based on prior structured contexts. To this extent, themoral behavior of animals, what they ''ought'' to do, could arguablybe predicted by evolutionary biology as effectively as, say,molecular (...) behavior may be predicted by chemistry. But afteracknowledging that biological inferences to this limited senseof ''ought'' were never contested by Moore''s naturalistic fallacy,Richard proposes to add to evolutionary ethics a decision procedureto determine which members of a set of predicted behaviors arethose which truly ought to occur – in the genuinelyprescriptive sense intended by ethical discourse. But theprocedure which Richards fabricates for this purpose appealsto such alleged ''facts'' as cultural conventions and moral opinionpolling, hardly a secure foundation for the sort of scientific ethics promised by Richards at the outset. (shrink)

K G Fleming; Criteria of Learning and Teaching, Journal of Philosophy of Education, Volume 14, Issue 1, 30 May 2006, Pages 39–51, https://doi.org/10.1111/j.1467.

Irreversibility, it is claimed, is a much broader concept than is entropy increase, as is shown by the occurrence of certain processes which are irreversible without seeming to involve any intrinsic entropy change. These processes include the spreading outwards into space of particles, or of radiation, and they also include certain biological and mental phenomena. For instance, the irreversible and treelike branching which is characteristic of natural evolution is not entropic when it is considered in itself—i.e. in abstraction from accompanying (...) biochemical and physiological activity. What appears to be the common feature of all forms of irreversibility is the fanning out of trajectories, new entities or new states, in the temporal direction towards the future. (shrink)

This paper was delivered at the 2009 annual conference of the National Council on Ethics in Human Research. It is a reflective piece based on many years of experience with human research ethics and the role of Research Ethics Boards in human participant research.

The objectives of this study were to develop a high-density chromosome bin map of homoeologous group 7 in hexaploid wheat, to identify gene distribution in these chromosomes, and to perform comparative studies of wheat with rice and barley. We mapped 2148 loci from 919 EST clones onto group 7 chromosomes of wheat. In the majority of cases the numbers of loci were significantly lower in the centromeric regions and tended to increase in the distal regions. The level of duplicated loci (...) in this group was 24% with most of these loci being localized toward the distal regions. One hundred nineteen EST probes that hybridized to three fragments and mapped to the three group 7 chromosomes were designated landmark probes and were used to construct a consensus homoeologous group 7 map. An additional 49 probes that mapped to 7AS, 7DS, and the ancestral translocated segment involving 7BS also were designated landmarks. Landmark probe orders and comparative maps of wheat, rice, and barley were produced on the basis of corresponding rice BAC/PAC and genetic markers that mapped on chromosomes 6 and 8 of rice. Identification of landmark ESTs and development of consensus maps may provide a framework of conserved coding regions predating the evolution of wheat genomes. (shrink)

Dialectical logic is the science of the most general laws of development of nature, society, and human thought. These laws are reflected in the form of special concepts called the categories of logic. Therefore d. 1. may also be defined as the science of dialectical categories. Comprising a system of dialectical categories, it investigates their mutual relationship, sequence, and the transitions from one category to another.

The birth rates per 1000 married females of specified ages and durations of marriage generally attained their post-war maxima in 19463000 and (b) the cumulative fertility up to 5 or 10 years of marriage duration of later cohorts was considerably higher (13–40% higher) than that of earlier cohorts. These facts, and similar ones for Australia covering a wider period (Basavarajappa, 1964), are thought to suggest that the total fertility of cohorts who have not yet completed their childbearing might not be (...) far outside the limits of 2500 and 3000. (shrink)

Emerging technologies can have profound conceptual implications. Their emergence frequently calls for the articulation of new concepts, or for modifications and novel applications of concepts that are already entrenched in communication and thought. In this paper, we introduce the notion of “conceptual appropriation” to capture the dynamics between concepts and emerging technologies. By conceptual appropriation, we mean the novel application of a value-laden concept to lay a contestable claim on an underdetermined phenomenon. We illustrate the dynamics of conceptual appropriation by (...) analyzing the concept NATURE and its uptake in three discourses of emerging technology: cellular agriculture, solar geo-engineering, and biomimicry. We argue that NATURE and its cognate NATURALNESS are strongly valanced concepts upon which different stakeholders lay a claim. In doing so, stakeholders advance distinct conceptions of nature, typically to suit their own interests. Our case-studies illustrate how in discourses on emerging technology, the application of value-concepts is entangled with ideological stakes and power dynamics. (shrink)

Because the evolution of speech production is beyond our expertise (and perhaps beyond everyone's expertise) we restrict our comments to areas in which data actually exist. We provide articulatory evidence consistent with the claims made about syllable structure in adult speech and infant babbling, but we also voice some disagreement about speech errors and the typing data.