Objective: To develop an approach for seeking informed consent to examine tissues retained from a previous study of sudden infant death syndrome as part of a study on asthma, and to document responses and participation rate.Design: Pilot open-ended approach to 10 volunteer SIDS parents, followed by staged approach to seek consent from the target SIDS families for the asthma study.Participants: Parents of SIDS infants known to SIDS and Kids Victoria and parents of SIDS infants from the 1991–2 SIDS in Victoria (...) case–control study.Main outcomes: Qualitative responses of the piloted parents and study parents, and participation rates.Results: The pilot group responses were used to refine the written material to be provided. Of the 72 families for which contact details were available, 45 gave verbal consent for contact by the Victorian Institute of Forensic Medicine regarding the asthma study, three refused and 24 did not respond to two letters. Thirty-three completed consent forms, all positive for participation in the asthma study, giving a positive response rate of 73% .Conclusions: The use of postmortem tissue for research is acceptable to the next of kin when an approach is sensitive to their concerns and needs and is made by experienced counsellors from a familiar organisation. Despite the painful memories evoked by the approach of the research group, the acceptance rate among those who could be contacted was high. (shrink)

Though hippocampal volume reduction is a pathological hallmark of schizophrenia, the molecular pathway responsible for this degeneration remains unknown. Recent reports have suggested the potential role of impaired blood-brain barrier function in schizophrenia pathogenesis. However, direct evidence demonstrating an impaired BBB function is missing. In this preliminary study, we used immunohistochemistry and serum immunoglobulin G antibodies to investigate the state of BBB function in formalin-fixed postmortem samples from the hippocampus and surrounding temporal cortex of patients with schizophrenia and controls without (...) schizophrenia matched for age, sex, and race. Since a functional BBB prevents the extravasation of IgGs, detection of IgGs in the parenchyma is used as direct evidence of BBB breakdown. We also developed a semi-quantitative approach to quantify the extent of IgG leak and therein BBB breach. Analysis of our immunohistochemistry data demonstrated a significantly higher incidence of IgG leak in patients with schizophrenia compared to controls. Further, BBB permeability was significantly higher in advanced-age patients with schizophrenia than both advanced-age controls and middle-aged patients with schizophrenia. Male patients with schizophrenia also demonstrated a significant increase in IgG permeability compared to control males. Interestingly, the extravasated IgGs also demonstrated selective immunoreactivity for neurons. Based on these observations, we suggest that BBB dysfunction and IgG autoantibodies could be two key missing pathoetiological links underwriting schizophrenia hippocampal damage. (shrink)

The first English translation of Fichte’s second set of 1804 lectures on the Wissenschaftslehre.

Every student of the early history of mankind, and their numbers have greatly increased of recent years, must be well acquainted with the recent conflict between the advocates of diffusion in interpreting the origins and world-wide manifestations of civilization and those of independent development, or, in more exact terms, of the spontaneous generation of cultures. To an unbiassed observer of the evidence, it must also be a matter of astonishment that the ethnologists of the latter school have for so long (...) refused to admit a distribution of ideas, beliefs and customs which are not only of proved historical but daily and common occurrence. It is impossible to enter a library or a club, or to walk down Regent Street and look into the shop windows, without realizing that world-diffusion is the very stuff of civilized existence. It is impossible to travel the remoter regions of the globe to-day without being constantly reminded of London, Leeds and Manchester. Nobody, again,would dream of controverting the known phenomena of the spread of great religions, Christianity, Mohammedanism, Buddhism, from a single original centre. The school of independent development of cultures not merely ignores or twists to its own purposes a gigantic mass of evidence bearing upon the subject in dispute and capable of being interpreted in only one way; it displays a singular disregardof common sense and human nature. The innate conservatism of humanity, its readiness to live on the. (shrink)

A cross-sectional study to ascertain what the Singapore population would regard as material risk in the anaesthesia consent-taking process and identify demographic factors that predict patient preferences in medical decision-making to tailor a more patient-centered informed consent. A survey was performed involving patients 21 years old and above who attended the pre-operative evaluation clinic over a 1-month period in Singapore General Hospital. Questionnaires were administered to assess patients’ perception of material risks, by trained interviewers. Patients’ demographics were obtained. Mann–Whitney U (...) test and Kruskal-Wallis one-way analysis of variance was used. Statistical significance was taken at p < 0.05. Four hundred fourteen patients were eligible of which 26 refused to participate and 24 were excluded due to language barrier. 364 patients were recruited. A higher level of education, being employed and younger age group are factors identified in patients who wanted greater participation in medical decisions. Gender, marital status, type of surgery, and previous surgical history did not affect their level of participation. The complications most patients knew about were Nausea, Drowsiness and Surgical Wound Pain. Patients ranked Heart Attack, Death and Stroke as the most significant risks that they wanted to be informed about in greater detail. Most patients wanted to make a joint decision with the anaesthetist, instead of letting the doctor decide or deciding for themselves. Discussion with the anaesthetist is the preferred medium of communication compared to reading a pamphlet or watching a video. Age and educational level can influence medical decision-making. Despite the digital age, most patients still prefer a clinic consult instead of audio-visual multimedia for pre-operative anaesthetic counselling. The local population appears to place greater importance on rare but serious complications compared to common complications. This illustrates the need to contextualize information provided during informed consent to strengthen the doctor-patient relationship. (shrink)

The texts collected in this volume, which was originally published in 1969, contain Herder's most original and stimulating ideas on politics, history and language. They had for the most part not been previously available in English. In his introduction, Professor Barnard analyses the basic premises of Herder's political thought against the background of the Enlightenment. He examines Herder's concepts of language, community and culture, his theory of historical interaction, and his approach to the problem of change and progress. Finally, he (...) provides a brief comparative analysis of traditionalist thought following the French Revolution, showing how substantive writers like Burke differed from Herder despite the close similarity of political vocabulary. (shrink)

This essay is written on the following premises and argues for them. “Enlightenment” is a word or signifier, and not a single or unifiable phenomenon which it consistently signifies. There is no single or unifiable phenomenon describable as “the Enlightenment,” but it is the definite article rather than the noun which is to be avoided. In studying the intellectual history of the late seventeenth century and the eighteenth, we encounter a variety of statements made, and assumptions proposed, to which the (...) term “Enlightenment” may usefully be applied, but the meanings of the term shift as we apply it. The things are connected, but not continuous; they cannot be reduced to a single narrative; and we find ourselves using the word “Enlightenment” in a family of ways and talking about a family of phenomena, resembling and related to one another in a variety of ways that permit of various generalizations about them. We are not, however, committed to a single root meaning of the word “Enlightenment,” and we do not need to reduce the phenomena of which we treat to a single process or entity to be termed “the” Enlightenment. It is a reification that we wish to avoid, but the structure of our language is such that this is difficult, and we will find ourselves talking of “the French” or “the Scottish,” “the Newtonian” or the “the Arminian” Enlightenments, and hoping that by employing qualifying adjectives we may constantly remind ourselves that the keyword “Enlightenment” is ours to use and should not master us. (shrink)

This volume breaks new ground in the study of how national culture, disciplinary tradition, epistemological choice, and political expediency affect the construction of collective memory and, then, how historians work with—and sometimes against—those constructions. Essays focus on a variety of commemorative rites, ranging from the quincentennial of Copernicus to the centennials of Pasteur, Darwin, and Planck; from the tercentenary of Harvard to the half centennial of Los Alamos; from the centennial of evolutionary theory to anniversaries of research schools in molecular (...) biology. Contributors include Clark A. Elliott, Owen Gingerich, Dieter Hoffmann, Dominque Pestre, Robert W. Seidel, and V. Betty Smocovitis. (shrink)

First Published in 1999. Routledge is an imprint of Taylor & Francis, an informa company.

Two classic learning situations are critically reviewed and interpreted from a synergetic point of view: human learning of complex skills, and animal discrimination learning. Both show typical characteristics of nonlinear phase transitions: instability, fluctuations, critical slowing down and reorganisation. Plateaus in the acquisition curves of complex skills can be viewed as phases of arrested progress in which a reorganisation of simple skills is necessary before their integration into complex units is possible. Fluctuations and critical slowing down are expressed in instances (...) of "vicarious trial-and-error," which describe the oscillating behavior of rats at a choice point that is shown only just before discrimination learning is completed. It is concluded that education might pay more attention to the role of individual learning rhythms. (shrink)

It is shown that an approach to quantum phenomena in which charged particles are treated as macroscopically extended periodic disturbances in a nonlinear c-number field, interacting with each other via massless excitations of that field, leads almost uniquely to the five basic equations of classical electrodynamics: the Lorentz force law and Maxwell's equations. The fundamental electromagnetic quantity in this approach is the 4-vector potential Aα—interpreted absolutely as a measure of the local shift of each particle off its mass shell—rather than (...) theE andB fields, and it thus provides a new viewpoint on the questions of Aharonov-Bohm phase shifts, the existence of magnetic monopoles, and the role of gauge invariance. (shrink)