This paper deals with the problem of reconstruction of the intergenic interaction graph from the raw data of genetic co-expression coming with new technologies of bio-arrays (DMA-arrays, protein-arrays, etc.). These new imaging devices in general only give information about the asymptotical part (fixed configurations of co-expression or limit cycles of such configurations) of the dynamical evolution of the regulatory networks (genetic and/or proteic) underlying the functioning of living systems. Extracting the casual structure and interaction coefficients of a gene interaction network (...) from the observed configurations is a complex problem. But if all the fixed configurations are supposedly observed and if they are factorizable into two or more subsets of values, then the interaction graph possesses as many connected components as the number of factors and the solution is obtained in polynomial time. This new result allows us for example to partly solve the topology of the genetic regulatory network ruling the flowering in Arabidopsis thaliana. (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)

Peter Kivy argues that Handel was the first composer to be regarded as a genius and that only in the eighteenth century was the philosophical apparatus in place that would enable any composer to be conceived of as a musical genius. According to Kivy, a Longinian conception of genius transformed Handel into a genius. A Platonic conception of genius was used to classify Mozart as a genius. Then Kant adopted a Longinian conception of genius and this shaped the perception of (...) Beethoven. Kivy is wrong on all counts. Composers were thought to be geniuses long before Handel. The emergence of philosophical aesthetics in the eighteenth century did little to shape conceptions of musical genius. More specifically, Kivy misrepresents Kant's conception of genius and the role that it plays in the recognition of Beethoven as a musical genius. (shrink)

Jian Zhou,* Weiqiang Ju,* Xiaopeng Yuan, Xiaofeng Zhu, Dongping Wang, Xiaoshun HeOrgan Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China *These authors contributed equally to this work: Hyperosmolar nonketotic hyperglycemic coma is a serious, rare complication induced by methylprednisolone pulse therapy for acute rejection after orthotopic liver transplantation. Herein, we report an unusual case of a 58-year-old woman who experienced acute rejection at 30 months after OLT, only one case in which HNKHC resulted in MP (...) pulse therapy for acute rejection in all 913 recipients in our center. The general morbidity of HNKHC was 1.09‰ in this study. HNKHC is characterized by rapid onset, rapid progression, and a lack of specific clinical manifestations. High-dose MP management was a clear risk factor. The principle of treatment included rapid rehydration, low-dose insulin infusion, and correcting disorders of electrolytes and acidosis. In conclusion, clinicians considering MP pulse therapy after OLT should be alert to the occurrence of HNKHC. Keywords: liver transplantation, complications, hyperosmolar nonketotic hyperglycemic coma, methylprednisolone pulse therapy, principle of treatment. (shrink)

At some distance from a high-rate source in an elastic half-space, the dominant wave motion at the free surface is a Rayleigh surface wave. The calculation of surface waves generated by a concentrated force in a half-space is a basic problem in elastodynamics. By straightforward manipulations, the result can be used to obtain surface waves for other kinds of wave-generating body-force arrangements. For example, appropriate combinations of double-forces (or dipoles) can be used to represent the surface loading due to laser (...) irradiation, or due to acoustic emission from the opening of a sub-surface crack or from sliding over a fault surface. The surface wave motion is usually obtained by the application of integral transform techniques and the subsequent extraction of the surface waves as the contributions from poles in the integral for the inverse transform. In this paper, we use a much simpler approach based on the elastodynamic reciprocity theorem. We consider a transversely isotropic solid whose axis of symmetry is normal to the surface of the half-space. Surface wave pulses generated by a single force, by irradiation from a laser source, and by opening of a crack, have been determined. (shrink)

J. J. Valberg; VIII*—Improper Singular Terms, Proceedings of the Aristotelian Society, Volume 71, Issue 1, 1 June 1971, Pages 121–146, https://doi.org/10.1093/a.

In lieu of an abstract, here is a brief excerpt of the content:IntroductionStuart J. Youngner (bio), Laura A. Siminoff (bio), and Renie Schapiro (bio)This issue of the Kennedy Institute of Ethics Journal (KIEJ) centers on a piece of empirical research. The motivation behind the study of Laura Siminoff, Christopher Burant, and Stuart Youngner (2004) was to find out more about what the general public understands and believes about when a person is dead. More specifically, the study tried to determine how (...) members of the public define death, especially their acceptance and interpretation of the medical concept of "brain death," and their attitudes toward the so-called "dead donor rule," an informal but powerful social and legal norm insisting that the taking of organs for transplantation not cause the death of the source of those organs.As the demand for organs increases and the waiting list grows, the United States has explored multiple ways to expand the pool of potential donors. One approach has been to gerrymander (coherently or not) the line between life and death to shift patients who are extremely compromised but traditionally considered to be in the living category into the dead category. In this way, the dead donor rule remains technically intact. This reasoning is explicit in the report of the Harvard Medical School Ad Hoc Committee (1968) that "introduced" "brain death" to the American culture. Since then, other efforts to redraw the line have been proposed and rejected.One alternative to gerrymandering is to consider under what conditions, if any, it is morally acceptable to violate the dead donor rule. Some would argue that this alternative is the more "honest" approach. Rather than sidestepping moral problems by calling people dead, it brings the moral problems to the surface where the necessity of sticking to the rule can be considered on its own merits. However, when the Journal of the American Medical Association printed a position paper that proposed making anencepahlic newborns an exception to the dead donor rule, along with arguments about why this was acceptable, the outcry was so great that the proposal was retracted (AMA 1995).Clearly, our society has identified organ transplantation as a priority, although two papers in this volume (those by Courtney Campbell and by Megan Crowley-Matoka and Robert Arnold) take issue with that prioritization. The fact that the donor pool has remained relatively stable (and inadequate) despite massive efforts [End Page 211] to increase it speaks, at least in part, to the cultural and legal resistance to "new" ways to procure more organs. Voluntarism seems to have peaked. Financial incentives clash with the heavily endorsed notion of the "gift of life" and seem to many to violate the dignity of the human body. Presumed consent or eminent domain, in which the community has a greater claim to a person's organs than that person or his/her family, go against the grain of American individual freedom and the ethos of patient autonomy.Abandoning the dead donor rule generally is regarded as an even tougher sell to the American public and its legislators. The study by Siminoff and colleagues attempts, among other things, to gauge just how tough this sell would be. What the data actually demonstrate is a matter of interpretation, and this issue of the KIEJ is devoted to some of those interpretations. The authors, with the exception of Daniel Hausman, came together for a meeting in Cleveland, Ohio, during which the study's methods and data were presented with time for questions, clarifications, and general discussion. The authors then worked with the editors to generate the papers printed in this volume.The issue begins with a presentation of the study conducted by Siminoff and colleagues. The same paper also appears in the journal Social Science and Medicine, where it includes the conclusions of the authors (Siminoff, Burant, and Youngner 2004). In the current volume, we present only the methodology of and data from the study, allowing a number of distinguished commentators to offer their own conclusions and reflections.The first response comes from Tracy Schmidt, Executive Director of Intermountain Donor Services, one of our nation's organ procurement organizations (OPOs). For years, organ procurement professionals have reported anecdotal stories about families who wished to donate organs of... (shrink)

The demonstration by E. Wölfflin that between theHistoriesandAnnalsTacitus progressed towards a more archaic and artificial style is well known. From the outset Tacitus adhered to the traditional Roman view that history should be composed in an archaic language remote from everyday usage ; but he was apparently at first not fully aware of the possibilities of the archaizing style. New archaisms and artificial usages suggested themselves as he advanced ; and others, which he had used sporadically even early in theHistories, (...) were allowed to oust ordinary alternatives completely. (shrink)