A particle of molecular dimensions which can exist in two states is associated with a membrane pore through which molecules of a gas can pass. The gas molecules from two identical phases on either side of the membrane may pass only when the particle is in one particular state. If certain restrictions are imposed on the system, then the particle appears to act like a Maxwell's Demon(1) which “handles” the gas molecules during their passage through the pore.

v. 1. De l'ineffable et de l'Un -- v. 2. De la triade et de l'unifié -- v. 3. De la procession.

An interdisciplinary course was designed as an introduction to the applications of, and the socio-economic issues associated with, biotechnology. College students enrolled in the course were surveyed prior to the first formal lecture, and again upon completion of the course. Assessment was made of the impact of the educational materials on the attitudes and perceptions of the students toward the applications of biotechnology to agriculture. Data were collected for the first three semesters in which the course was offered. Answers to (...) survey questions were analyzed on a before and after basis. It was found that students were very accepting of biotechnology prior to taking the course, despite a generally low level of exposure to this type of technology. The course was effective in increasing the knowledge base of the students, but not as effective in allaying their perceptions of risks associated with biotechnology. (shrink)

The ethical pre-condition of randomised controlled trials is, at present, the presence of equipoise. This refers to an opinion of the investigator that there is uncertainty as to the merits of the treatments being compared. It is argued that since the decision to enrol is the potential subject’s, the investigator’s opinion is not ethically relevant. It is proposed instead that equipoise be patient-centred, and that a trial is in equipoise for a patient when enrolling gives them the same chance of (...) a good outcome as not enrolling. It is shown that trial enrolment is normally easily the best strategy for achieving a good outcome, and that trials currently thought to be unethical may be in patient-centred equipoise. This is so for three reasons: (1) patients in trials receive superior care, (2) trial enrolment minimises the risk of being a victim of a therapeutic disaster and (3) health professionals make mistakes, and a 50% chance of receiving the worse treatment until a trial reports is always better than any chance of receiving the worse treatment indefinitely. It is concluded that so long as the standard of professional conduct is the furtherance of patients’ objective interests randomised controlled trials are ethical. (shrink)

These essays use particular issues, thinkers and texts to engage the question of God in early Christianity.

; tibi M. Bibulus quaerenti se de caelo seruasse respondit idemque in contione dixit, ab Appio tuo fratre productus, te omnino, quod contra auspicia adoptatus esses, tribunum non fuisse. tua denique omnis actio posterioribus mensibus fuit, omnia quae C. Caesar egisset, quod contra auspicia essent acta, per senatum rescindi oportere; quod si fieret, dicebas te tuis umeris me custodem urbis in urbem relaturum.’.

An extension of the hypothetical experiment of Szilard, which involved the action of a one-molecule gas in an isolated isothermal system, is developed to illustrate how irreversibility may arise out of Brownian motion. As this development requires a consideration of nonmolecular components such as wheels and pistons, the thought-experiment is remodeled in molecular terms and appears to function as a perpetuum mobile.