Given a finite relational language L is there an algorithm that, given two finite sets A and B of structures in the language, determines how many homogeneous L structures there are omitting every structure in B and embedding every structure in A? For directed graphs this question reduces to: Is there an algorithm that, given a finite set of tournaments Γ, determines whether QΓ, the class of finite tournaments omitting every tournament in Γ, is well-quasi-order? First, we give a nonconstructive (...) proof of the existence of an algorithm for the case in which Γ consists of one tournament. Then we determine explicitly the set of tournaments each of which does not have an antichain omitting it. Two antichains are exhibited and a summary is given of two structure theorems which allow the application of Kruskal's Tree Theorem. Detailed proofs of these structure theorems will be given elsewhere. The case in which Γ consists of two tournaments is also discussed. (shrink)

The American states have demonstrated varying levels of support for animal rights legislation. The activities of interest groups, including pressures from competing groups, help to explain the presence or absence of ten pro-animal regulations and laws. This article analyzes and ranks each of the fifty states with regard to ten key areas of animal protection and welfare legislation. The analysis reveals that states with a more agricultural economic base are less likely to provide protection to animals. In addition, states with (...) a more traditional political culture are less likely to have pro-animal legislation in place. (shrink)

High blood pressure is a disease of unknown cause. Family history of the disease indicates higher risk, but it is not known which genes are involved or how they interact with environmental influences to produce the disorder. Molecular biology offers an approach to problems that have not so far been solved by classical physiology or biochemistry. By analysing polymorphic variation in chromosome markers such as minisatellite sequences, or by restriction fragment polymorphism analysis of candidate genes, attempts are being made to (...) link genetic variations with hypertension. In genetically hypertensive rats, hypertension is associated with a polymorphism of the renin gene and with other loci on chromosomes 10 and 18. The role of these loci in human hypertension remains to be determined. Other genes such as sodium‐lithium countertransport may be involved. Environmental factors such as stress or salt intake could influence the rate or timing of expression of certain genes and thus result in hypertension. (shrink)

Nursing has a unique opportunity to address issues of structural violence that contribute to poor health outcomes. Models for designing nursing care relative to the social determinants of health can be adapted from the discipline of peace studies and the phenomenon of peacebuilding. The aim of this qualitative study was to describe the lived experience of peacebuilding from the perspective of community or public health nurses. Interviews were conducted with eight participants. Attributes of the peacebuilder included fostering human relationships that (...) value the inherent worth and dignity of others, nurturing a character of humility and moral courage, and contemplating the personal cost of engaging in prolonged processes of peacebuilding. Practices of peacebuilding included mediating conflict through multilayered processes, accompanying others to places of empowerment, and utilizing interdisciplinary teaching and learning to build capacity for change. Increasing an understanding of the lived experience of peacebuilding by nurses is relevant to nursing research, theory, and practice, and adds to a broader understanding of peacebuilding. (shrink)

Theoretical explication of a growing body of empirical data on consciousness-related anomalous phenomena is unlikely to be achieved in terms of known physical processes. Rather, it will first be necessary to formulate the basic role of consciousness in the definition of reality before such anomalous experience can adequately be represented. This paper takes the position that reality is constituted only in the interaction of consciousness with its environment, and therefore that any scheme of conceptual organization developed to represent that reality (...) must reflect the processes of consciousness as well as those of its environment. In this spirit, the concepts and formalisms of elementary quantum mechanics, as originally proposed to explain anomalous atomic-scale physical phenomena, are appropriated via metaphor to represent the general characteristics of consciousness interacting with any environment. More specifically, if consciousness is represented by a quantum mechanical wave function, and its environment by an appropriate potential profile, Schrödinger wave mechanics defines eigenfunctions and eigenvalues that can be associated with the cognitive and emotional experiences of that consciousness in that environment. To articulate this metaphor it is necessary to associate certain aspects of the formalism, such as the coordinate system, the quantum numbers, and even the metric itself, with various impressionistic descriptors of consciousness, such as its intensity, perspective, approach/avoidance attitude, balance between cognitive and emotional activity, and receptive/assertive disposition. With these established, a number of the generic features of quantum mechanics, such as the wave/particle duality, and the uncertainty, indistinguishability, and exclusion principles, display metaphoric relevance to familiar individual and collective experiences. Similarly, such traditional quantum theoretic exercises as the central force field and atomic structure, covalent molecular bonds, barrier penetration, and quantum statistical collective behavior become useful analogies for representation of a variety of consciousness experiences, both normal and anomalous, and for the design of experiments to study these systematically. (shrink)

The scientific, personal, and social implications of this revolutionary work are staggering. MARGINS OF REALITY is nothing less than a fundamental reevaluation of how the world really works.

Ethics, Policy & Environment, Volume 15, Issue 1, Page 71-76, March 2012.

Background As our society is ageing, nursing homes are finding it increasingly difficult to deal with an expanding population of patients with dementia and a decreasing workforce. A potential answer to this problem might lie in the use of technology. However, the use and application of surveillance technology in dementia care has led to considerable ethical debate among healthcare professionals and ethicists, with no clear consensus to date. Aim To explore how surveillance technology is viewed by care professionals and ethicists (...) working in the field, by investigating the ideal application of surveillance technology in the residential care of people with dementia. Methods Use was made of the concept mapping method, a computer-assisted procedure consisting of five steps: brainstorming, prioritising, clustering, processing by the computer and analysis. Various participants (ranging from ethicists to physicians and nurses) were invited on the basis of their professional background. Results The views generated are grouped into six categories ranging from the need for a right balance between freedom and security, to be beneficial and tailored to the resident, and clearly defined procedures to competent and caring personnel, active monitoring and clear normative guidance. The results are presented in the form of a graphic chart. Conclusions There appears to be an inherent duality in the views on using surveillance technology which is rooted in the moral conflict between safety and freedom. Elaboration of this ethical issue has proved to be very difficult. (shrink)

Newborn bloodspot screening programs are some of the longest running population screening programs internationally. Debate continues regarding the need for parents to give consent to having their child screened. Little attention has been paid to how meanings of consent-related terminology vary among stakeholders and the implications of this for practice. We undertook semi-structured interviews with parents, healthcare professionals and policy decision makers in two Canadian provinces. Conceptions of consent-related terms revolved around seven factors within two broad domains, decision-making and information (...) attainment. Decision-making comprised: parent decision authority; voluntariness; parent engagement with decision-making; and the process of enacting choice. Information ascertainment comprised: professional responsibilities ; parent responsibilities; and the need for discussion and understanding prior to a decision. Our findings indicate that consent-related terms are variously understood, with substantive implications for practice. We suggest that consent procedures should be explained descriptively, regardless of approach, so there are clear indications of what is expected of parents and healthcare professionals. Support systems are required both to meet the educational needs of parents and families and to support healthcare professionals in delivering information in a manner in keeping with parent needs. (shrink)

Recent analysis of genome sequences has identified individuals that are healthy despite carrying severe disease‐associated mutations. A possible explanation is that these individuals carry a second genomic perturbation that can compensate for the detrimental effects of the disease allele, a phenomenon referred to as suppression. In model organisms, suppression interactions are generally divided into two classes: genomic suppressors which are secondary mutations in the genome that bypass a mutant phenotype, and dosage suppression interactions in which overexpression of a suppressor gene (...) rescues a mutant phenotype. Here, we describe the general properties of genomic and dosage suppression, with an emphasis on the budding yeast. We propose that suppression interactions between genetic variants are likely relevant for determining the penetrance of human traits. Consequently, an understanding of suppression mechanisms may guide the discovery of protective variants in healthy individuals that carry disease alleles, which could direct the rational design of new therapeutics. (shrink)

A citizen’s jury brings together a mix of citizens from different socio-economic groups who deliberate on a particular policy issue over a number of days. Since their development in the 1970s in th...

In this study, we analyzed the academic integrity policies of colleges in Ontario, Canada, casting a specific lens on contract cheating. We extracted data from 28 individual documents from 22-publicly-funded colleges including policies and procedures (n = 27) and code of conduct (n = 1). We analyzed the characteristics of the documents from three perspectives: (a) document type and titles; (b) policy language; and (c) policy principles. Then we examined five core elements of the documentation including (a) access; (b) approach; (...) (c) responsibility; (d) detail; and (e) support. Key findings revealed that specific and direct language pertaining to contract cheating was largely absent from the policy documents, that underlying policy principles lacked clear definition, and that exemplary policy has yet to be developed in this context. We conclude with recommendations for increased policy research in the area of academic integrity and a call for policy revision in Canadian higher education institutions to more explicitly address the issue of contract cheating, as well as provide more support to students and other campus stakeholders to better understand how contract cheating impacts and impedes teaching and learning. (shrink)

For various domains in proportional reasoning cognitive development is characterized as a progression through a series of increasingly complex rules. A multiplicative relationship between two task features, such as weight and distance information of blocks placed at both sides of the fulcrum of a balance scale, appears difficult to discover. During development, children change their beliefs about the balance scale several times: from a focus on the weight dimension (Rule I) to occasionally considering the distance dimension (Rule II), guessing (Rule (...) III), and applying multiplication (Rule IV; Siegler, 1981). Because of the detailed empirical findings the balance scale task has become a benchmark task for computational models of proportional reasoning. In this article, we present a large empirical study (N = 420) of which the findings provide a challenge for computational models. The effect of feedback and the effect of individually adapted training items on rule transition were tested for children using Rule I or Rule II. Presenting adapted training items initiates belief revision for Rule I but not for Rule II. The experience of making mistakes (by providing feedback) induces a change for both Rule I and Rule II. However, a delayed posttest shows that these changes are preserved after 2 weeks only for children using Rule I. We conclude that the transition from Rule I to Rule II differs from the transition from Rule II to a more complex rule. Concerning these empirical findings, we will review performance of computational models and the implications for a future belief revision model. It is one Thing, to show a Man that he is in an Error, and another, to put him in possession of Truth. John Locke. (shrink)

We investigate whether age profiles of ethnobiological knowledge development are consistent with predictions derived from life history theory about the timing of productivity and reproduction. Life history models predict complementary knowledge profiles developing across the lifespan for women and men as they experience changes in embodied capital and the needs of dependent offspring. We evaluate these predictions using an ethnobiological knowledge assessment tool developed for an off-grid pastoralist population known as Choyeros, from Baja California Sur, Mexico. Our results indicate that (...) while individuals acquire knowledge of most dangerous items and edible resources by early adulthood, knowledge of plants and animals relevant to the age and sex divided labor domains and ecologies (e.g., women’s house gardens, men’s herding activities in the wilderness) continues to develop into middle adulthood but to different degrees and at different rates for men and women. As the demands of offspring on parents accumulate with age, reproductive-aged adults continue to develop their knowledge to meet their children’s needs. After controlling for vision, our analysis indicates that many post-reproductive adults show the greatest ethnobiological knowledge. These findings extend our understanding of the evolved human life history by illustrating how changes in embodied capital and the needs of dependent offspring predict the development of men’s and women’s ethnobiological knowledge across the lifespan. (shrink)

A Correction to this paper has been published: https://doi.org/10.1007/s12110-021-09399-4.

Traditional approaches to studying communication in public spheres draw upon a product or outcome orientation that has prevented researchers from theorizing more specifically about how communication behaviors either inhibit or facilitate dialogic processes. Additionally, researchers typically emphasize consensus as a preferred outcome. Drawing upon a methodology explicitly developed to study communicating using a verb-oriented framework, we analyzed 1,360 postings from online pedagogical discussions. Our analysis focused on verbing micro-practices, the dynamic communicative actions through which participants make and unmake public spheres. (...) Two questions guided our analysis: (1) How do grounded communicative micro-moment practices relate to consensusing and dissensusing within public spheres? and (2) What are the theoretical implications of these relationships for the quality of dialogue among participants who are discussing controversial topics? Our findings indicate that, contrary to recent theorizing, consensus-building and maintaining behaviors may actually inhibit the communicative processes necessary for the creation of effective public sphere dialogue. (shrink)

It has usually been assumed that the Actian Games at Nicopolis were founded in 28 B.C. . In Mélanges d'Arch. et d'Hist., 1936, pp. 94 ff., J. Gagé argues also for 28 B.C., his principal grounds being as follows: ‘Comme Auguste leur conféra en même temps le rang isolympique et que le calcul du temps par Actiades fut admis çá et lá á remplacer celui des Olympiades, il est logique de penser que ces deux computs coïncidaient. Or, la première célébration (...) olympique après Actium est celle de l'an 28 av. J-C.; c'est done presque sûrement en 28 que commence en fait la première Actiade.’. (shrink)

Physical activity and sedentary behaviour have been linked to the mental health of children and adolescents, yet the timing of behaviours may play a role in this relationship and clarifying this could inform interventions. We explored cross-sectional associations of PA and SED in varying time segments throughout the school day with the mental health of school-aged children and adolescents from rural Northeastern Ontario, Canada. A total of 161 students wore accelerometers for 8 days and completed a self-report survey. Mental health (...) was measured using the Strengths and Difficulties Questionnaire. Accelerometer-measured SED, light PA, and moderate and vigorous PA were estimated in the time-segments before school, school time, after school, and evenings. Associations were tested with multilevel linear regressions while adjusting for confounding factors. Students spent 72.6 min in MVPA, 209.0 min in LPA, and 621.0 min in SED per day. Daily SED was associated with less conduct problems. Evening LPA was inversely associated with hyperactivity, while SED was associated with hyperactivity and with peer problems before school, and during school. No associations were observed for MVPA, emotional symptoms, or prosocial behaviour. In conclusion, displacing SED with LPA in some specific periods of the day may benefit the mental health of students; taking this into account could strengthen interventions. (shrink)

Presents a plethora of approaches to developing human potential in areas not conventionally addressed. Organized in two parts, this international collection of essays provides viable educational alternatives to those currently holding sway in an era of high-stakes accountability.

Depression might be associated with accelerated cellular aging. However, does this result in an irreversible state or is the body able to slow down or recover from such a process? Telomeres are DNA‐protein complexes that protect the ends of chromosomes and generally shorten with age; and therefore index cellular aging. The majority of studies indicate that persons with depression have shorter leukocyte telomeres than similarly aged non‐depressed persons, which may contribute to the observed unfavorable somatic health outcomes in the depressed (...) population. Some small‐scale preliminary studies raise the possibility that behavioral or pharmacological interventions may either slow down or else reverse this accelerated telomere shortening, possibly through increasing the activity of the telomere‐lengthening enzyme telomerase. This paper covers the current state of evidence in the relationship between depression and the telomere‐telomerase system and debates whether depression‐related cellular aging should be considered a reversible process or permanent damage. (shrink)

While most of us have accepted that our theories are human constructs and approximations of the truth, many of us still think of ‘natural laws ’ as things that exist ‘out there’, and that the work of science is thus the discovery or uncovering of these laws and their expression in mathematical formulae. This notion has serious implications for the science-theology debate. This article challenges the notion that ‘natural laws ’ adequately describe or prescribe nature. It argues that law statements (...) are idealised abstractions that only weakly explain and describe reality, and that mathematics, the ‘language’ of science, is not immutable. It challenges the prescriptive nature of law statements by arguing that we are limited beings who cannot know reality in itself. Our meta-scientific commitments co-determine what and how we think of laws, and the complexity of reality defies human analysis and explanations. Far from having ontic status or being complete and accurate descriptions of reality, natural laws at best mimic the key structures and relationships of the reality they refer to. We would do better to think of reality as an open system of inseparable, interacting and ever-moving components, with the observer an integral part of the system. It is an illusion to believe that these incredibly rich representations of the phenomena are unconstructed isomorphisms we merely discover in the real world. Instead they are constructed – painstakingly so – and there is no evidence that they are isomorphic with structures in the real world. It is an illusion to believe that these incredibly rich representations of the phenomena are unconstructed isomorphisms we merely discover in the real world. Instead they are constructed – painstakingly so – and there is no evidence that they are isomorphic with structures in the real world. William R. Stoeger, S.J. (shrink)