A total of 944 expressed sequence tags generated 2212 EST loci mapped to homoeologous group 1 chromosomes in hexaploid wheat. EST deletion maps and the consensus map of group 1 chromosomes were constructed to show EST distribution. EST loci were unevenly distributed among chromosomes 1A, 1B, and ID with 660, 826, and 726, respectively. The number of EST loci was greater on the long arms than on the short arms for all three chromosomes. The distribution of ESTs along chromosome arms (...) was nonrandom with EST clusters occurring in the distal regions of short arms and middle regions of long arms. Duplications of group 1 ESTs in other homoeologous groups occurred at a rate of 35.5%. Seventy-five percent of wheat chromosome 1 ESTs had significant matches with rice sequences, where large regions of conservation occurred between wheat consensus chromosome 1 and rice chromosome 5 and between the proximal portion of the long arm of wheat consensus chromosome 1 and rice chromosome 10. Only 9.5% of group 1 ESTs showed significant matches to Arabidopsis genome sequences. The results presented are useful for gene mapping and evolutionary and comparative genomics of grasses. (shrink)

Risk–benefit assessment is a routine requirement for research ethics committees that review and oversee biomedical research with human subjects. Nevertheless, it remains unclear how to weigh and balance risks to research participants against the social benefits that flow from generating biomedical knowledge. In this article, we address the question of whether there are any reasonable criteria for defining the limit of permissible risks to individuals who provide informed consent for research participation. We argue against any a priori limit to permissible (...) research risks. However, attention to the uncertainty of potential social benefit that can be derived from any particular study warrants caution in exposing prospective research participants to a substantial likelihood of serious harm. (shrink)

This report describes the rationale, approaches, organization, and resource development leading to a large-scale deletion bin map of the hexaploid wheat genome. Accompanying reports in this issue detail results from chromosome bin-mapping of expressed sequence tags representing genes onto the seven homoeologous chromosome groups and a global analysis of the entire mapped wheat EST data set. Among the resources developed were the first extensive public wheat EST collection. Described are protocols for sequencing, sequence processing, EST nomenclature, and the assembly of (...) ESTs into contigs. These contigs plus singletons were used for selection of distinct sequence motif unigenes. Selected ESTs were rearrayed, validated by 5′ and 3′ sequencing, and amplified for probing a series of wheat aneuploid and deletion stocks. Images and data for all Southern hybridizations were deposited in databases and were used by the coordinators for each of the seven homoeologous chromosome groups to validate the mapping results. Results from this project have established the foundation for future developments in wheat genomics. (shrink)

This collection of Kant's writings on the philosophy of history includes, besides the well-known "What is Enlightenment?" and "Perpetual Peace," several other essays from his critical period. Most are newly translated. Together they give a reasonably complete picture of Kant's views on history, which he never presented in systematic form. The result is valuable in showing how widely Kant applied some of the central principles of the Critiques, as well as the close relationship of his ideas to other Enlightenment thinkers. (...) The editor provides a useful introduction.--A. F. G. (shrink)

This volume contains the Dialogues, The Natural History of Religion, and several short essays and selections from other works. The selection is a good one, but the editor's introduction does little to explicate the principles upon which Hume's writings on religion are based or to connect them with his other philosophical work.—A. F. G.

Friedman characterizes modern man as alienated and problematic, an exile and a rebel. The Modern Promethean and the Modern Job are the typical responses to this situation. These categories are central to Friedman's "depth-image" of modern man and he attempts to give them concrete meaning through intensive examination of the writings of Melville, Dostoievsky, Kafka and Camus. The analysis tends to be repetitious and often too detailed to have clear relevance to the author's main theme.—A. F. G.

Cassirer rejects Burckhardt's thesis that there is a radical separation between the theory and practice of the Renaissance, and that Renaissance philosophy is merely a survival of the Middle Ages, containing none of the new tendencies of the period. Nor does he see a sharp break between Renaissance and medieval thought. Instead, Cassirer traces the "close interplay between religion, philosophy, and humanism" in Renaissance thought, and the gradual emergence of a new view of man. Underlying the astonishing variety of philosophies (...) in this period, he uncovers certain common tendencies. Starting with Cusanus, the key transition figure in the shift from medieval patterns of thought, Cassirer traces the rise of new conceptions of knowledge, science, freedom and humanity.--A. F. G. (shrink)

This volume forms a part of the Great American Thinkers Series and is intended for the general reader. It is largely devoted to a highly readable biography of Jefferson in which main emphasis is placed on his political activities and ideas, and their influence upon the development of the United States. A separate essay at the end gives the outlines of Jefferson's thought, relating it to the contemporary ideas of the enlightenment, and tracing its sources to those thinkers whom Jefferson (...) most admired, Bacon, Newton, Locke, and Epicurus. In discussing these figures, the author exhibits an unfortunate tendency towards facile and occasionally incorrect generalizations.—A. F. G. (shrink)

This study centers on Hume's discussion of the relation of reason and the passions in Book III, Part I, section I of the Treatise and related passages. Hume's central arguments are carefully laid out and are found to rest on unwarranted premisses. Making use of the distinctions suggested by Baier, Ryle, and other modern writers, Broiles questions Hume's thesis that reason plays no direct role in ethics, and further suggests that a failure to distinguish explanatory or exciting reasons from justifying (...) reasons leads Hume to an incorrect conception of the nature of motives. Hume's relation to the earlier British moralists is also treated, and the famous "is-ought" passage is given a fresh interpretation.—A. F. G. (shrink)

Intended as an introduction to ethics, this book examines four main problems: obligation, moral value, intrinsic goods and the justification of moral judgments. Frankena's approach to each problem is to examine critically the main types of theory and then develop his own position. Of particular interest is his discussion of the meaning and justification of moral judgments; while joining recent English thought in holding that a non-descriptivist position does not imply the impossibility of sensible discussion of normative problems, Frankena suggests (...) that this need not necessitate even an ultimate relativism, since broad standards of rationality may be applied in cases of conflict. By approaching ethics through types of ethical theory rather than concrete examples, and because of the great variety of subjects discussed within this brief compass, a necessary over-simplification and superficiality results which may inhibit the beginning student from developing his own thinking. A more selective approach might have been both less confusing and more stimulating.--A. F. G. (shrink)

Using twelve modern philosophers as moments in a rather contrived dialectic, Kiley examines man's relation to himself and to the world. While showing the many "possibilities of human existence," he suggests that "human completion" can only be achieved through the religious experience.—A. F. G.

Five essays concerned primarily with Dewey's philosophy of education and its influence. Taking up half of the volume is Williams Brickman's thoroughly documented study of the rise and decline of Dewey's sympathies with the Soviet Union and the varying treatment his educational theories received there. George Axtelle surveys Dewey's philosophy, which he sees as expressing "the genius of American civilization" and showing directions for its future development. Dewey's reliance on the "civilizational functions" of education as the major tool for developing (...) a sound democratic society is emphasized by John Childs. Brief essays on Dewey's influence on American educators and an early proposal to teach psychology in high school fill out the collection.—A. F. G. (shrink)

Objective: To evaluate feasibility of the guidelines of the Groupe Francophone de Réanimation et Urgence Pédiatriques for limitation of treatments in the paediatric intensive care unit .Design: A 2-year prospective survey.Setting: A 12-bed PICU at the Hôpital Jeanne de Flandre, Lille, France.Patients: Were included when limitation of treatments was expected.Results: Of 967 children admitted, 55 were included with a 2-day median delay. They were younger than others , had a higher paediatric risk of mortality score , and a higher paediatric (...) overall performance category score at admission ; all p<0.002. 34 children died. A limitation decision was made without meeting for 7 children who died: 6 received do-not-resuscitate orders and 1 received withholding decision. Decision-making meetings were organised for 31 children, and the following decisions were made: 12 DNROs , 4 withholding , with 14 withdrawing and 1 continuing treatment . After limitation, 21 children died and 10 survived . 13 procedures were interrupted because of death and 11 because of clinical improvement . Parents’ opinions were obtained after 4 family conferences , 3 days after inclusion. The first meeting was planned for 6 days after inclusion and held on the 7th day after inclusion; 80% of parents were immediately informed of the decision, which was implemented after half a day.Conclusions: GFRUPs procedure was applicable in most cases. The main difficulties were anticipating the correct date for the meeting and involving nurses in the procedure. Children for whom the procedure was interrupted because of clinical improvement and who survived in poor condition without a formal decision pointed out the need for medical criteria for questioning, which should systematically lead to a formal decision-making process. (shrink)

To localize wheat ESTs on chromosomes, 882 homoeologous group 6-specific ESTs were identified by physically mapping 7965 singletons from 37 cDNA libraries on 146 chromosome, arm, and sub-arm aneuploid and deletion stocks. The 882 ESTs were physically mapped to 25 regions flanked by 23 deletion breakpoints. Of the 5154 restriction fragments detected by 882 ESTs, 2043 were localized to group 6 chromosomes and 806 were mapped on other chromosome groups. The number of loci mapped was greatest on chromosome 6B and (...) least on 6D. The 264 ESTs that detected orthologous loci on all three homoeologs using one restriction enzyme were used to construct a consensus physical map. The physical distribution of ESTs was uneven on chromosomes with a tendency toward higher densities in the distal halves of chromosome arms. About 43% of the wheat group 6 ESTs identified rice homologs upon comparisons of genome sequences. Fifty-eight percent of these ESTs were present on rice chromosome 2 and the remaining were on other rice chromosomes. Even within the group 6 bins, rice chromosomal blocks identified by 1-6 wheat ESTs were homologous to up to 11 rice chromosomes. These rice-block contigs were used to resolve the order of wheat ESTs within each bin. (shrink)

John McMillan's article raises numerous important points about the ethics of surgical castration of sex offenders.1 In this commentary, we focus solely on and argue against the claim that the offer of release from detention conditional upon surgical castration is a coercive offer that compromises the validity of the offender's consent. We take no view on the question as to whether castration for sex offenders is ethically permissible. But, we reject the claim that it is ethically permissible only if competing (...) ethical considerations outweigh worries about coercion. For in the situation described, the proposal is not coercive at all.McMillan states that if offenders agree to castration because they fear long-term detention, then ‘it seems, intuitively, as if agreeing to be castrated under these conditions makes the decision coerced in some way.’1 He adds that if castration is ‘the only way that they will be released back into the community, the status of this decision as a genuine expression of their autonomy is questionable.’1 In defence of his claim, he uses two analogies that he borrows from Joel Feinberg. First, if a governor offers to commute a death sentence if the prisoner agrees to participate in a medical experiment, then ‘it's clear that the governor is coercing the prisoner.’1 Second, if a millionaire offers to give a woman $1 000 000 …. (shrink)

This volume contains the Dialogues, The Natural History of Religion, and several short essays and selections from other works. The selection is a good one, but the editor's introduction does little to explicate the principles upon which Hume's writings on religion are based or to connect them with his other philosophical work.—A. F. G.

This study investigated the importance of socioeconomic factors such as education, income, religion, family structure and residence in explaining the increased risk of mortality among vulnerable populations aged less than 20 years in Rio de Janeiro, Brazil. Data used were from the 1991 Brazilian Demographic Census and comprised 121,060 women aged 15–49 residing in Rio de Janeiro. Two alternative statistical methods were used to calculate the risk of death: the widely used Brass method (an indirect estimate which assesses population risks) (...) and a case-control study (which assesses individual risks). The study also focused on the importance of indicators of human and social capital, the lack of which may explain the higher risk of death among children and adolescents. Lack of education was found to be a major determinant of mortality at young ages. Residence in a favela (shantytown), families in which mothers were the head of the family, and a lower median level of income were found to be significant determinants of mortality among vulnerable populations in Brazil. However, religion was not found to be as important a predictor of high mortality. (shrink)

This collection of Kant's writings on the philosophy of history includes, besides the well-known "What is Enlightenment?" and "Perpetual Peace," several other essays from his critical period. Most are newly translated. Together they give a reasonably complete picture of Kant's views on history, which he never presented in systematic form. The result is valuable in showing how widely Kant applied some of the central principles of the Critiques, as well as the close relationship of his ideas to other Enlightenment thinkers. (...) The editor provides a useful introduction.--A. F. G. (shrink)

Objective To assess parental permission for a neonate's research participation using the MacArthur competence assessment tool for clinical research (MacCAT-CR), specifically testing the components of understanding, appreciation, reasoning and choice. Study Design Quantitative interviews using study-specific MacCAT-CR tools. Hypothesis Parents of critically ill newborns would produce comparable MacCAT-CR scores to healthy adult controls despite the emotional stress of an infant with critical heart disease or the urgency of surgery. Parents of infants diagnosed prenatally would have higher MacCAT-CR scores than parents (...) of infants diagnosed postnatally. There would be no difference in MacCAT-CR scores between parents with respect to gender or whether they did or did not permit research participation. Participants Parents of neonates undergoing cardiac surgery who had made decisions about research participation before their neonate's surgery. Methods The MacCAT-CR. Results 35 parents (18 mothers; 17 fathers) of 24 neonates completed 55 interviews for one or more of three studies. Total scores: magnetic resonance imaging (mean 36.6, SD 7.71), genetics (mean 38.8, SD 3.44), heart rate variability (mean 37.7, SD 3.30). Parents generally scored higher than published subject populations and were comparable to published control populations with some exceptions. Conclusions The MacCAT-CR can be used to assess parental permission for neonatal research participation. Despite the stress of a critically ill neonate requiring surgery, parents were able to understand study-specific information and make informed decisions to permit their neonate's participation. (shrink)

This book introduces a new category, in-between, that will have a far-reaching impact on classic ways of thinking. Husserl's description of consciousness and Whitehead's criticism of the prejudice of simple location are two starting points. Relativity theory's radical changes in the conception of space and time also motivate some of the lines of thought.

This book introduces a new category, in-between, that will have a far-reaching impact on classic ways of thinking. Husserl's description of consciousness and Whitehead's criticism of the prejudice of simple location are two starting points. Relativity theory's radical changes in the conception of space and time also motivate some of the lines of thought.

Friedman characterizes modern man as alienated and problematic, an exile and a rebel. The Modern Promethean and the Modern Job are the typical responses to this situation. These categories are central to Friedman's "depth-image" of modern man and he attempts to give them concrete meaning through intensive examination of the writings of Melville, Dostoievsky, Kafka and Camus. The analysis tends to be repetitious and often too detailed to have clear relevance to the author's main theme.—A. F. G.

IntroductionTranscranial magnetic stimulation is a consolidated procedure for the treatment of depression, with several meta-analyses demonstrating its efficacy. Theta-burst stimulation is a modification of TMS with similar efficacy and shorter session duration. The geriatric population has many comorbidities and a high prevalence of depression, but few clinical trials are conducted specifically for this age group. TBS could be an option in this population, offering the advantages of few side effects and no pharmacological interactions. Therefore, our aim is to investigate the (...) efficacy of TBS in geriatric depression.Clinical trial registration[https://clinicaltrials.gov/ct2/], identifier [NCT04842929]. (shrink)

BackgroundIn the Canadian Alliance for Healthy Hearts and Minds (CAHHM) cohort, participants underwent magnetic resonance imaging (MRI) of the brain, heart, and abdomen, that generated incidental findings (IFs). The approach to managing these unexpected results remain a complex issue. Our objectives were to describe the CAHHM policy for the management of IFs, to understand the impact of disclosing IFs to healthy research participants, and to reflect on the ethical obligations of researchers in future MRI studies.MethodsBetween 2013 and 2019, 8252 participants (...) (mean age 58 ± 9 years, 54% women) were recruited with a follow-up questionnaire administered to 909 participants (40% response rate) at 1-year. The CAHHM policy followed a restricted approach, whereby routine feedback on IFs was not provided. Only IFs of severe structural abnormalities were reported.ResultsSevere structural abnormalities occurred in 8.3% (95% confidence interval 7.7–8.9%) of participants, with the highest proportions found in the brain (4.2%) and abdomen (3.1%). The majority of participants (97%) informed of an IF reported no change in quality of life, with 3% of participants reporting that the knowledge of an IF negatively impacted their quality of life. Furthermore, 50% reported increased stress in learning about an IF, and in 95%, the discovery of an IF did not adversely impact his/her life insurance policy. Most participants (90%) would enrol in the study again and perceived the MRI scan to be beneficial, regardless of whether they were informed of IFs. While the implications of a restricted approach to IF management was perceived to be mostly positive, a degree of diagnostic misconception was present amongst participants, indicating the importance of a more thorough consent process to support participant autonomy.ConclusionThe management of IFs from research MRI scans remain a challenging issue, as participants may experience stress and a reduced quality of life when IFs are disclosed. The restricted approach to IF management in CAHHM demonstrated a fair fulfillment of the overarching ethical principles of respect for autonomy, concern for wellbeing, and justice. The approach outlined in the CAHHM policy may serve as a framework for future research studies.Clinical trial registrationhttps://clinicaltrials.gov/ct2/show/nct02220582. (shrink)

A total of 1918 loci, detected by the hybridization of 938 expressed sequence tag unigenes from 26 Triticeae cDNA libraries, were mapped to wheat homoeologous group 4 chromosomes using a set of deletion, ditelosomic, and nulli-tetrasomic lines. The 1918 EST loci were not distributed uniformly among the three group 4 chromosomes; 41, 28, and 31% mapped to chromosomes 4A, 4B, and 4D, respectively. This pattern is in contrast to the cumulative results of EST mapping in all homoeologous groups, as reported (...) elsewhere, that found the highest proportion of loci mapped to the B genome. Sixty-five percent of these 1918 loci mapped to the long arms of homoeologous group 4 chromosomes, while 35% mapped to the short arms. The distal regions of chromosome arms showed higher numbers of loci than the proximal regions, with the exception of 4DL. This study confirmed the complex structure of chromosome 4A that contains two reciprocal translocations and two inversions, previously identified. An additional inversion in the centromeric region of 4A was revealed. A consensus map for homoeologous group 4 was developed from 119 ESTs unique to group 4. Forty-nine percent of these ESTs were found to be homoologous to sequences on rice chromosome 3, 12% had matches with sequences on other rice chromosomes, and 39% had no matches with rice sequences at all. Limited homology was found between wheat ESTs on homoeologous group 4 and the Arabidopsis genome. Forty-two percent of the homoeologous group 4 ESTs could be classified into functional categories on the basis of blastX searches against all protein databases. (shrink)