Supportive peer relationships are crucial for mental and physical health. Early adolescence is an especially important period in which peer influence and school environment strongly shape psychological development and maturation of core social-emotional regulatory functions. Yet, there is no integrated evidence based model of SPR in this age group to inform future research and practice. The current meta-analysis synthetizes evidence from 364 studies into an integrated model of potential determinants of SPR in early adolescence. The model encompasses links with 93 (...) variables referring to individual and environmental potential influences on SPR based on cross-sectional correlational data. Findings suggest the central importance of identity and social–emotional skills in SPR. School environment stands out as a compelling setting for future prevention programs. Finally, we underscore an alarming gap of research on the influence of the virtual and online environment on youth's social realm given its unquestionable importance as a globally expanding social interaction setting. Hence, we propose an integrated model that can serve as organizational framework, which may ultimately lead to the adoption of a more structured and integrated approach to understanding peer relationship processes in youth and contribute to overcoming marked fragmentation in the field. (shrink)

Although informed consent is an integral part of clinical practice, its current doctrine remains mostly a matter of law and mainstream ethics rather than empirical research. There are scarce empirical data on patients’ perceived purpose of informed consent, which may include administrative routine/courtesy gesture, simple honest permission, informed permission, patient-clinician shared decision-making, and enabling patient’s self decision-making. Different purposes require different processes.

BackgroundOrgan donation has become one of the most effective ways to save lives and improve the quality of life for patients with end-stage organ failure. No previous studies have investigated the preferences for the different consenting options for organ donation in Egypt. This study aims to assess Egyptians’ preferences regarding consenting options for posthumous organ donation, and measure their awareness and acceptance of the Egyptian law articles regulating organ donation.MethodsA cross sectional study was conducted among 2743 participants over two years. (...) Each participant was required to rank eleven consenting options from 1 to 11, and to report his awareness and acceptance of the seven articles of the Egyptian law of organ donation.Results47% of the participants expressed willingness to donate their organs after death. This percentage increased to 78% when consenting options were explained to participants. “Informed consent by donor only” was the most preferred type of consent for one third of respondents. Awareness of the law articles regulating organ donation was relatively low ranging from 56% to 23%.ConclusionCurrently, around half of the Egyptian population agree to posthumous organ donation. This percentage could be increased significantly by raising the awareness about how the process of donation could be regulated and how the patient’s right of decision could be protected. (shrink)

We examine the effects of leader–member exchange differentiation on team members’ outcomes by using team moral disengagement as a psychological mechanism mediating this relationship and LMX differentiation bases moderating the relationship. Analysis of multilevel data collected from 289 frontline employees organized into 76 finance-related customer service teams shows that LMX differentiation significantly reduced team moral disengagement only when the performance basis was high, and that the negative relationship between LMX differentiation and team moral disengagement was significant only when the personal (...) liking basis was low. Furthermore, we found that the LMX bases moderated the indirect effect of LMX differentiation on team members’ outcomes through team moral disengagement. The findings advance team moral disengagement as a novel mechanism for cross-level relationship between LMX differentiation and team members’ outcomes at the individual level, and project differentiation bases as a condition under which LMX differentiation unpacks the reasons for team members’ favorable or unfavorable responses. They reveal LMX differentiation as a complex and multifaceted phenomenon, whose essence can only be understood if examined from multiple levels. We also contribute to the literature by revealing the cognitive pathway through which LMX differentiation may be associated with team members outcomes. (shrink)

The objective of this paper is to outline challenges associated with the inclusion of welfare issues in breeding goals for farm animals and to review the currently available methodologies and discuss their potential advantages and limitations to address these challenges. The methodology for weighing production traits with respect to cost efficiency and market prices are well developed and implemented in animal breeding goals. However, these methods are inadequate in terms of assessing proper values of traits with social and ethical values (...) such as animal welfare, because such values are unlikely to be readily available from the product prices and costs in the market. Defining breeding goals that take animal welfare and ethical concerns into account, therefore, requires new approaches. In this paper we suggest a framework and an approach for defining breeding goals, including animal welfare. The definition of breeding goals including values related to animal welfare requires a multidisciplinary approach with a combination of different methods such as profit equations, stated preference techniques, and selection index theory. In addition, a participatory approach involving different stakeholders such as breeding organizations, food authorities, farmers, and animal welfare organizations should be applied. We conclude that even though these methods provide the necessary tools for considering welfare issues in the breeding goal, the practical application of these methods is yet to be achieved. (shrink)

Background Posthumous organ procurement is hindered by the consenting process. Several consenting systems have been proposed. There is limited information on public relative attitudes towards various consenting systems, especially in Middle Eastern/Islamic countries. Methods We surveyed 698 Saudi Adults attending outpatient clinics at a tertiary care hospital. Preference and perception of norm regarding consenting options for posthumous organ donation were explored. Participants ranked (1, most agreeable) the following, randomly-presented, options from 1 to 11: no-organ-donation, presumed consent, informed consent by donor-only, (...) informed consent by donor-or-surrogate, and mandatory choice; the last three options ± medical or financial incentive. Results Mean(SD) age was 32(9) year, 27% were males, 50% were patients’ companions, 60% had ≥ college education, and 20% and 32%, respectively, knew an organ donor or recipient. Mandated choice was among the top three choices for preference of 54% of respondents, with an overall median[25%,75%] ranking score of 3[2,6], and was preferred over donor-or-surrogate informed consent (4[2,7], p vs. 11[6,11], respectively, p = 0.002). Compared to females, males more perceived donor-or-surrogate informed consent as the norm (3[1,6] vs. 5[3,7], p vs. 8[4,9], p vs. 5[2,7], p Conclusions We conclude that: 1) most respondents were in favor of posthumous organ donation, 2) mandated choice system was the most preferred and presumed consent system was the least preferred, 3) there was no difference between preference and perception of norm in consenting systems ranking, and 4) financial (especially in females) and medical (especially in males) incentives reduced preference. (shrink)

Reconstructive allografts using Vascularized Composite Allotransplantation are providing individuals living with upper limb loss and facial disfigurement with new opportunities for a sensate, esthetically acceptable, and functional alternative to current treatment strategies. Important research attention is being paid to how best to assess and screen candidates for VCA, measure optimal patient outcomes, and support patient adherence to lifelong behaviors and medical regimens. Far less attention, however, has been dedicated to the team science required for these complex VCA teams to form, (...) prepare, and provide the highest quality clinical and psychosocial care to those receiving VCA. VCA teams are unique in that they require specialized team members whose scope of practice may not otherwise overlap. The team also needs to constantly negotiate balancing patient safety with multiple risks throughout the transplant process. This study aimed to elucidate the team science needed for this highly innovative and complex area of medicine. Using in-depth qualitative interviews with 14 VCA team members and observations at team meetings, we found that careful consideration of team composition, team structure, and organizational commitment influences team performance and patient outcomes, but that to be efficient and truly effective, teams need to commit to developing processes that foster collaboration. These processes are action-oriented, strategic and interpersonal. Dedication and commitment to team science allows teams to manage conflict under stress and exercise ways to leverage strengths to provide optimal performance or patient psychosocial and clinical outcomes. This study can provide insight into quality improvement efforts for VCA teams and guidance for other transplant programs that wish to consider expansion into VCA. (shrink)

The goals of vascular composite allotransplantation for hand are to maximize functional status and psychosocial wellbeing and to improve quality of life. Candidates are carefully vetted by transplant programs through an extensive evaluation process to exclude those patients with contraindications and to select those that are most likely to attain functional or quality of life benefit from transplant. Patient choice for any treatment, however, requires that candidates be able to understand the risks, benefits, and alternatives before choosing to proceed. This (...) study aimed to understand patients’ knowledge and perceptions about treatment options for hand loss, including hand transplant. This study will be used to inform a standardized education approach and develop conversation aids for use by clinicians and patients throughout the treatment decision process. Ten individuals who had experienced hand amputation or had congenital limb loss were interviewed to better understand previous and current decisions about treatment, experiences in adjusting to their treatment, and perceptions about hand VCA. From this qualitative interview data, four findings emerged: knowledge and education around VCA as a treatment option; adaptation of individuals with limb loss; fear of risk associated with transplantation; issues of aging and overuse injuries to existing limbs. Results suggests that there is opportunity for expanding education about all treatment options for patients with new loss, long-term loss, and congenital limb loss. Establishing a baseline of knowledge about all options–prosthetics, rehabilitative strategies, and VCA—can help patients evaluate their values and goals of treatment. Issues associated with aging, including overuse and injury, and adaptability over the life course should be included in considerations about treatment choices. Data indicate the need for routinely assessing patient preferences about treatment choice so patients can plan for their future as they adapt and age and as technology for treatments change. To assure that thorough information is provided for current and future decision-making, education about treatment choices and selection procedures for VCA should be standardized. (shrink)

Leveraging, according to David M. Anderson and his colleagues, is both a basic principle of human conduct and the most dominant strategy in recent years that individuals, organizations and countries use to pursue their ends. Although many scholars agree that a crisis of "over-leveraging" caused the financial crisis of 2008-2010, it has not been appreciated that an "over-leveraging" crisis has existed in American politics and the American family system as well. This book addresses the need for a "Leverage Mean" (falling (...) between the extremes of too much leverage and too little leverage) in the economy, politics, family life, and international relations. It identifies three different kinds of leveraging-bargaining, resource, and investment and provides an explanatory and normative theory which draws on the fields of economics, political science, sociology, history, psychology, international relations, law, and philosophy. Moreover, it shows how the dissolution of the Cold War, the dismantling of the modern family, and the rise of the Internet along with the deregulation of the financial services industry led to the diffusion of power which has made leveraging of the first importance for everyone. This book should be of interest to social scientists, philosophers, political theorists, public policy makers and politicians. David Anderson and his colleagues are the first to characterize and assess one of the major instruments of power of the contemporary era. This volume represents the best work on leverage since Archimedes and will be widely read and discussed. Benjamin Ginsberg, David Bernstein Professor of Political Science and Chair, Center for Advanced Governmental Studies, Johns Hopkins University Leverage might literally be the operative word of the 21st century. Anderson's volume is a wide-ranging and illuminating study of this fundamental and dynamic concept. Parag Khanna, Senior Fellow, New Amer ica Foundation, author of The Second World: How Emerging Powers Are Redefining Global Competition in the Twenty-first Century. (shrink)

Special groups [M. Dickmann, F. Miraglia, Special Groups : Boolean-Theoretic Methods in the Theory of Quadratic Forms, Memoirs Amer. Math. Soc., vol. 689, Amer. Math. Soc., Providence, RI, 2000] are a first-order axiomatization of the theory of quadratic forms. In Section 2 we investigate reduced special groups which are a lattice under their natural representation partial order ; we show that this lattice property is preserved under most of the standard constructions on RSGs; in particular finite RSGs and (...) RSGs of finite chain length are lattice ordered. We prove that the lattice property fails for the RSGs of function fields of real algebraic varieties over a uniquely ordered field dense in its real closure, unless their stability index is 1 . We show that Open Problem 1 has a positive answer for the RSG of the field Q . In the final section we explore the meaning of Open Problem 1 for formally real fields, in terms of their orders and real valuations; we introduce the notion of “parameter-rank” of a positive-primitive first-order formula of the language for special groups. (shrink)

We obtain in this paper a representation of the formulae of extensions ofL by generalized quantifiers through functors between categories of first-order structures and partial isomorphisms. The main tool in the proofs is the back-and-forth technique. As a corollary we obtain the Caicedo's version of Fraïssés theorem characterizing elementary equivalence for such languages. We also discuss informally some geometrical interpretations of our results.

Les recherches linguistiques, quelle que soit leur méthode, comportent toujours un élément de réflexion. Dans la ligne du livre remarquable de Denis Vasse, Le temps du désir, cet article veut contribuer à la réflexion sur „l'origine de la parole”. En effet, la conscience de notre corps ne manque pas de nous révéler des résidus de la vie inconsciente qui est à l'origine des structures de notre corps et du „corps subtil” qui est notre langage. Ces résidus sont e. a. les (...) trois dimensions corporelles , qui manifestement trouvent leur origine dans les trois phases de l'évolution psychique , et qui constituent trois formes de symbolisation appelées respectivement „expression”, „communication” et „signification”. L'„expression” est le corps subtil que l'enfant qui vient au monde donne en échange de tout ce qu'il reçoit de la mère. Par cet échange, la vie, commencée dans le sein maternel, prend l'aspect plus humain d'une présence réciproque. Mais la séparation de la naissance entraîne avec elle une menace constante de la mort, qui est - déjà plus humaine qu'une désintégration purement biologique des cellules vivantes - la déreliction, la détresse de l'enfant nécessiteux. Dans cette phase psychique, la conscience naissante ébauche une première structure d'elle-même : celle de la distinction entre l'intêrieur et l'extérieur ; l'homme ne cessera jamais de se considérer imaginairement comme le centre d'un monde qui l'entoure et dont il est la raison il'être. Et la dimension corporelle qui correspond à cette imagination, est celle du mouvement horizontal, le mouvement produit par les bras et les yeux. Puisqu'il ne fait encore que consommer, l'enfant commence par „com-prendre”, „saisir” la présence de l'autre. Le passage de l'„expression” à la „communication” va de pair avec la transition à la phase anale. L'enfant, par des jeux primitifs comme celui du „fort” et „da” , a appris à accepter une séparation plus longue de la mère, ou plutôt à refouler l'angoisse devant la menace de la mort, qui était la dereliction. Le temps où il apprend à se tenir debout et à retenir la défécation, est aussi le temps où sa conscience naissante s'ouvre à la concurrence de frère et de soeur , surtout à celle du père : la possession de la mère doit être partagée. Ce ne sont plus seulement les cris qui servent de corps subtil pour réaliser la présence réciproque ; celle-ci s'acquiert maintenant par le tenue du corps. La tenue du corps est le langage primitif qui est en fait une „communication” ; il fait trouver le moyen de relâcher encore le cordon ombilical et d'accepter la concurrence d'autres possesseurs de la mère, tout en éloignant l'angoisse de perdre celle-ci. L'objet de l'angoisse se déplace maintenant vers le danger de tomber, de faillir dans la maîtrise du corps et de subir amèrement l'humilitation de l'impuissance. La tension inconsciente, produite par cette angoisse, fair surgir une nouvelle dimension imaginaire : l'opposition entre le haut et le bas. L'effort que demandera toujours la construction de cette dimension verticale , continuera à servir d'étalon dans l'évaluation de tout ce qui demande de l'effort¹, en particulier le travail et la réalisation technique. Pour cette raison il est normal de dire que les salaires et les prix „ montent" — non pas qu'ils augmentent -; pour la même raison le fruit de l'effort, la puissance ou la sécurité, est symbolisé par un siège : le thrône du roi, le siège du président, la chaire du professeur, le siège aussi d'une ville, la pos-session du domaine. Il faut une troisième naissance pour que le langage de l'enfant passe enfin à la forme spécifiquement humaine de „signification”. Apprendre à parler, c.-à-d. à donner aux cris jusque là désordonnés, le „sens” de l'articulation, de l'ordre consécutif, c'est découvrir un monde qui dépasse de loin la présence de la mère et du père. Ce monde est „un relais qui vient s'interposer entre corps et le corps de l'autre ” . Le passage à la „signification” interfère d'ailleurs avec la phase phallique et encore avec l'éclosion du „je” comme sujet. L'ordre articulé des mots qui se suivent engendre la signification, précisément parce qu'il permet à autrui de „suivre” la pensée ; il est aussi symbole de la vie qui doit être une conduite ordonnée. En tant que tel il permet de refouler l'angoisse devant de désordre moral, la conduite désordonnée et devant le blâme ou la réprobation qui en seront la conséquence. En imaginant les projets d'une conduite future , la conscience se projette littéralement en avant et elle crée la troisième dimension, celle du lointain et du proche. Elle prend ici enfin la forme spécifiquement humaine de ïintentionalité, dirigée vers un paradis lointain qui tiendra la place de celui qu'elle vient de perdre. Pourquoi l'intentionalité est-elle spécifiquement humaine ? Parce qu'il est propre à l'essence humaine de chercher le sens de la vie et d'être déjà responsable de ce que cette vie pourra devenir plus tard. Or, c'est là aussi la structure du langage : une proposition, une phrase ne se construisent pas sans être prévues d'avance ; elle ne sont compréhensibles que quand la suite des vocables présente un ordre acceptable par les autres et une cohérence suffisamment logique ; et cependant cet ordre peut être si spécifiquement personnel, qu'il devient une parole authentique, nouvelle lorsque le sens en est cherché et créé par moi. Il s'ensuit que chercher l'origine de la parole, c'est chercher aussi le sens de l'existence humaine : par sa structure la parole reproduit l'histoire humaine et évoque le destin de l'homme. (shrink)

The objectives of this study were to develop a high-density chromosome bin map of homoeologous group 7 in hexaploid wheat, to identify gene distribution in these chromosomes, and to perform comparative studies of wheat with rice and barley. We mapped 2148 loci from 919 EST clones onto group 7 chromosomes of wheat. In the majority of cases the numbers of loci were significantly lower in the centromeric regions and tended to increase in the distal regions. The level of duplicated loci (...) in this group was 24% with most of these loci being localized toward the distal regions. One hundred nineteen EST probes that hybridized to three fragments and mapped to the three group 7 chromosomes were designated landmark probes and were used to construct a consensus homoeologous group 7 map. An additional 49 probes that mapped to 7AS, 7DS, and the ancestral translocated segment involving 7BS also were designated landmarks. Landmark probe orders and comparative maps of wheat, rice, and barley were produced on the basis of corresponding rice BAC/PAC and genetic markers that mapped on chromosomes 6 and 8 of rice. Identification of landmark ESTs and development of consensus maps may provide a framework of conserved coding regions predating the evolution of wheat genomes. (shrink)

Background: Discussing treatment risks has become increasingly important in medical communication. Still, despite regulations, physicians must decide how much and what kind of information to present. Objective: To investigate patients’ preference for information about a small risk of a complication of colonoscopy, and whether medical and personal factors contribute to such preference. To propose a disclosure policy related to our results. Design: Vignettes study. Setting: Department of Gastroenterology, Academic Medical Centre, the Netherlands. Patients: 810 consecutive colonoscopy patients. Intervention: A home-sent (...) questionnaire containing three vignettes. Vignettes varied in the indication for colonoscopy, complication severity and level of risk. Patients were invited to indicate their wish to be informed and the importance of such information. In addition, sociodemograhic, illness-related and psychological characteristics were assessed. Main outcome measurements: Wish to be informed and importance of information. Results: Of 810 questionnaires, 68% were returned. Patients generally wished to be informed about low-risk complications, regardless of the indication for colonoscopy or the severity of the complication. The level of risk did matter, though (OR = 2.48, SE = 0.28, p = 0.001). The information was considered less important if done for population screening purposes or diagnosis of colon cancer, if the complication was less severe (bleeding) and if the risk was smaller (0.01% and 0.1%). Patients’ information preference was also related to age, mood and coping style. Limitations: Difficulty of vignettes. Conclusions: Patients generally wish to be informed about all possible risks. However, this might become uninformative. A stepwise approach is suggested. (shrink)

All projects take place within a context of uncertainty. That is especially noticeable in complex hydroelectric power generation projects, which are affected by factors such as the large number of multidisciplinary tasks to be performed in parallel, long execution times, or the risks inherent in various fields like geology, hydrology, and structural, electrical, and mechanical engineering, among others. Such factors often lead to cost overruns and delays in projects of this type. This paper analyzes the efficiency of the Earned Value (...) Management technique and its Earned Schedule extension, as means of forecasting costs and deadlines when applied to complex hydroelectric power production projects. It is worth noting that this analysis was based on simulation models applied to real-life projects. The results showed that cost forecasting becomes very accurate over time, whereas duration forecasting is not reliably accurate. (shrink)

The vast majority of contributions to the literature on spirituality in nursing make extravagant claims about transcendence, eternity, the numinous, higher powers, higher levels of existence, invisible forces, cosmic unity, the essence of humanity, or other supernatural concepts. Typically, these assertions are made without the support of argument or evidence; and, as a consequence, alternative ways of theorizing ‘spirituality’ have been closed off, while the lack of consistent scholarship has turned the topic into a metaphysical backwater. In this paper, I (...) adopt a different premise, rejecting unsupported claims, and surveying the ‘spirituality’ terrain from a naturalistic and reductionist perspective. I argue that, if we rid ourselves of non‐naturalistic assumptions, we will discover theoretical and clinical resources in health psychology, social psychology, neuropsychology, and pharmacopsychology – resources which confirm that it is possible to conceptualize the study of existential concerns, and how health professionals might respond to them, in a properly scientific manner. In order to illustrate the potential usefulness of these resources, I will take palliative care as an example. (shrink)

Recognized in his day as a man of letters equaling Rousseau and Voltaire in France and rivaling Samuel Johnson, David Hume passed from favor in the Victorian age--his work, it seemed, did not pursue Truth but rather indulged in popularization. Although Hume is once more considered as one of the greatest British philosophers, scholars now tend to focus on his thought rather than his writing. To round out our understanding of Hume, M. A. Box in this book charts the interrelated (...) development of Hume's literary ambitions, theories of style, and compositional practice from his Treatise in 1739 through the Enquiries. In so doing, Box makes the case for Hume's career-long concern with the presentational modes of reaching an audience for his philosophical writings. Hume reacted to the popular failure of his masterpiece, A Treatise of Human Nature, Box suggests, by self-consciously exploring strategies in his subsequent works for agreeably bringing his readership to participate in the act of philosophizing. Combining a sensitive grasp of the ways Restoration period and eighteenth-century writers conceived the relations between rhetoric and philosophy with sound readings of particular texts, Box shows how Hume's literary concerns went beyond matters of style to involve persona, structure, and doctrine. While this book helps explain long-standing ambiguities surrounding Hume, especially by pointing out the tension between his created persona and his own voice, it also serves as an excellent introduction to his philosophy. (shrink)

There is a theistic argument which is discussed at least twice in the Hume corpus, both times rather perfunctorily. This perfunctoriness has carried over to some of his commentators, who are not always clear as to what the argument is or about the force of Hume’s comments on it. On page 23 of A Letter from a Gentleman to his Friend in Edinburgh Hume calls it “the metaphysical Argument a priori” and in Part 9 of Dialogues concerning Natural Religion simply (...) “the argument a priori”.1 It is the argument of Demea. (shrink)

Many contemporary logicians acknowledge a plurality of logical theories and accept that theory choice is in part motivated by logical evidence. However, just as there is no agreement on logical theories, there is also no consensus on what constitutes logical evidence. In this paper, I outline Jean Piaget’s psychological theory of reasoning and show how he used it to diagnose and solve one of the paradoxes of material implication. I assess Piaget’s use of psychology as a source of evidence for (...) logical theory in light of reservations raised by psychologism, and I highlight some ramifications for exceptionalism and anti-exceptionalism about logic by considering his use of psychology as logical evidence in the framework of genetic epistemology, Piaget’s research programme. I conclude that Piaget’s psychological theory of reasoning not only plausibly serves as a source of evidence for logical theory but also makes a strong case for anti-exceptionalism about logic. (shrink)

This text explores how human beings construe experience: experience as a resource, as a potential for understanding, representing and acting on reality.