WorldWideScience

Sample records for dilemma zone

  1. Distribution of dilemma zone after intelligent transportation system established

    Science.gov (United States)

    Deng, Yuanchang; Yang, Huiqin; Wu, Linying

    2017-03-01

    Dilemma zone refers to an area where vehicles can neither clear the intersection during the yellow interval nor stop safely before the stop line. The purpose of this paper is to analyzing the distribution of two types of dilemma zone after intelligent transportation system (ITS) established at Outer Ring Roads signalized intersections in Guangzhou Higher Education Mega Center. To collect field data a drone aircraft was used. When calculating the type II dilemma zone's distribution, we considered the information of drivers' aggressiveness, which was classified by driving speed and type I dilemma zone as well. We also compared the two types dilemma zone's distribution before and after ITS established and analyzed the changes, which was brought by ITS.

  2. Modeling the dynamics of driver's dilemma zone perception using machine learning methods for safer intersection control.

    Science.gov (United States)

    2014-04-01

    The "dilemma zone" (DZ) is defined as the area where drivers approaching a signalized intersection must decide to either proceed or stop at the onset of the yellow indication. Drivers that might perceive themselves to be too close to an intersection ...

  3. Disentangling the influence of cell phone usage in the dilemma zone: An econometric approach.

    Science.gov (United States)

    Eluru, Naveen; Yasmin, Shamsunnahar

    2016-11-01

    This paper focuses on developing an analysis framework to study the impact of cell phone treatment (cell phone type and call status) on driver behavior in the presence of a dilemma zone. Specifically, we examine how the treatment influences the driver maneuver decision at the intersection (stop or cross) and the eventual success of the maneuver. For a stop maneuver, success is defined as stopping before the stop line. Similarly, for a cross maneuver, success is defined as clearing the intersection safely before the light turns red. The eventual success or failure of the driver's decision process is dependent on the factors that affected the maneuver decision. Hence it is important to recognize the interconnectedness of the stop or cross decision with its eventual success (or failure). Toward this end, we formulate and estimate a joint framework to analyze the stop/cross decision with its eventual success (or failure) simultaneously. The study is conducted based on driving simulator data provided online for the 2014 Transportation Research Board Data Contest at http://depts.washington.edu/hfsm/upload.php. The model is estimated to analyze drivers' behavior at the onset of yellow by employing exogenous variables from three broad categories: driver characteristics, cell phone attributes and driving attributes. We also generate probability surfaces to identify dilemma zone distribution associated with different cell phone treatment types. The plots clearly illustrate the impact of various cellphone treatments on driver dilemma zone behavior. Copyright © 2015 Elsevier Ltd. All rights reserved.

  4. Comparison of proposed countermeasures for dilemma zone at signalized intersections based on cellular automata simulations.

    Science.gov (United States)

    Wu, Yina; Abdel-Aty, Mohamed; Ding, Yaoxian; Jia, Bin; Shi, Qi; Yan, Xuedong

    2018-07-01

    The Type II dilemma zone describes the road segment to a signalized intersection where drivers have difficulties to decide either stop or go at the onset of yellow signal. Such phenomenon can result in an increased crash risk at signalized intersections. Different types of warning systems have been proposed to help drivers make decisions. Although the warning systems help to improve drivers' behavior, they also have several disadvantages such as increasing rear-end crashes or red-light running (RLR) violations. In this study, a new warning system called pavement marking with auxiliary countermeasure (PMAIC) is proposed to reduce the dilemma zone and enhance the traffic safety at signalized intersections. The proposed warning system integrates the pavement marking and flashing yellow system which can provide drivers with better suggestions about stop/go decisions based on their arriving time and speed. In order to evaluate the performance of the proposed warning system, this paper presents a cellular automata (CA) simulation study. The CA simulations are conducted for four different scenarios in total, including the typical intersection without warning system, the intersection with flashing green countermeasure, the intersection with pavement marking, and the intersection with the PMAIC warning system. Before the specific CA simulation analysis, a logistic regression model is calibrated based on field video data to predict drivers' general stop/go decisions. Also, the rules of vehicle movements in the CA models under the influence by different warning systems are proposed. The proxy indicators of rear-end crash and potential RLR violations were estimated and used to evaluate safety levels for the different scenarios. The simulation results showed that the PMAIC countermeasure consistently offered best performance to reduce rear-end crash and RLR violation. Meanwhile, the results indicate that the flashing-green countermeasure could not effectively reduce either rear

  5. Safety surrogate histograms (SSH): A novel real-time safety assessment of dilemma zone related conflicts at signalized intersections.

    Science.gov (United States)

    Ghanipoor Machiani, Sahar; Abbas, Montasir

    2016-11-01

    Drivers' indecisiveness in dilemma zones (DZ) could result in crash-prone situations at signalized intersections. DZ is to the area ahead of an intersection in which drivers encounter a dilemma regarding whether to stop or proceed through the intersection when the signal turns yellow. An improper decision to stop by the leading driver, combined with the following driver deciding to go, can result in a rear-end collision, unless the following driver recognizes a collision is imminent and adjusts his or her behavior at or shortly after the onset of yellow. Considering the significance of DZ-related crashes, a comprehensive safety measure is needed to characterize the level of safety at signalized intersections. In this study, a novel safety surrogate measure was developed utilizing real-time radar field data. This new measure, called safety surrogate histogram (SSH), captures the degree and frequency of DZ-related conflicts at each intersection approach. SSH includes detailed information regarding the possibility of crashes, because it is calculated based on the vehicles conflicts. An example illustrating the application of the new methodology at two study sites in Virginia is presented and discussed, and a comparison is provided between SSH and other DZ-related safety surrogate measures mentioned in the literature. The results of the study reveal the efficacy of the SSH as complementary to existing surrogate measures. Copyright © 2015 Elsevier Ltd. All rights reserved.

  6. Security Dilemma

    DEFF Research Database (Denmark)

    Wivel, Anders

    2011-01-01

    What is a security dilemma? What are the consequences of security dilemmas in international politics?......What is a security dilemma? What are the consequences of security dilemmas in international politics?...

  7. Social dilemmas as exchange dilemmas

    NARCIS (Netherlands)

    Dijkstra, Jacob; van Assen, Marcel A.L.M.

    2016-01-01

    We develop a new paradigm to study social dilemmas, called exchange dilemmas. Exchange dilemmas arise from externalities of exchanges with third parties, and many real-life social dilemmas are more accurately modeled as exchange dilemmas rather than prisoner's dilemmas. Building on focusing and

  8. Social dilemmas as exchange dilemmas

    NARCIS (Netherlands)

    Dijkstra, J.; van Assen, M.A.L.M.

    2016-01-01

    We develop a new paradigm to study social dilemmas, called exchange dilemmas. Exchange dilemmas arise from externalities of exchanges with third parties, and many real-life social dilemmas are more accurately modeled as exchange dilemmas rather than prisoner's dilemmas. Bulding on focusing and

  9. Social dilemmas as exchange dilemmas

    OpenAIRE

    Dijkstra, J.; van Assen, M.A.L.M.

    2016-01-01

    We develop a new paradigm to study social dilemmas, called exchange dilemmas. Exchange dilemmas arise from externalities of exchanges with third parties, and many real-life social dilemmas are more accurately modeled as exchange dilemmas rather than prisoner's dilemmas. Bulding on focusing and framing research we predict that defection is omnipresent in exchange dilemmas, which is corroborated in to very different experiments. Our results suggest that the fundamental problem of cooperation in...

  10. Ethical dilemmas

    DEFF Research Database (Denmark)

    Aabro, Christian

    2015-01-01

    What are the characteristics of an ethical dilemma? And how do we handle them in the area of early childhood education? These are some of the questions that will be dealt with in this chapter.......What are the characteristics of an ethical dilemma? And how do we handle them in the area of early childhood education? These are some of the questions that will be dealt with in this chapter....

  11. Nuclear dilemma

    Energy Technology Data Exchange (ETDEWEB)

    Penn, J.

    Declaring nuclear preparedness 'immoral' helps to recreate the pacifism of 50 years ago. War itself is a dilemma, not the weapons with which it is waged. We must ask of the anti-war proposals: whom do they benefit. On the whole people concerned are ordinary citizens who are fearful of nuclear incineration. But marching with them is a spectrum of forces with other motivations and purposes. In a real life situation of international tension or crises, numbers of weapons in combination with their particular charateristics could mean the difference between peace and outbreak of war.

  12. Diagnostic dilemma

    DEFF Research Database (Denmark)

    Feldt-Rasmussen, Ulla; Dobrovolny, Robert; Nazarenko, Irina

    2011-01-01

    Fabry disease, an X-linked lysosomal storage disorder, results from the deficient activity of a-galactosidase A (a-Gal A). In affected males, the clinical diagnosis is confirmed by the markedly decreased a-Gal A activity. However, in female heterozygotes, the a-Gal A activity can range from low t...... on enzyme replacement therapy. Thus, gene dosage analyses can detect large deletions (>50bp) in suspect heterozygotes for X-linked and autosomal dominant diseases that are "sequencing cryptic," resolving molecular diagnostic dilemmas....... to normal due to random X-chromosomal inactivation, and diagnostic confirmation requires identification of the family's a-Gal A gene mutation. In a young female who had occasional acroparesthesias, corneal opacities, and 15 to 50% of the lower limit of normal leukocyte a-Gal A activity, a-Gal A sequencing...... in two expert laboratories did not identify a confirmatory mutation, presenting a diagnostic dilemma. A renal biopsy proved diagnostic and renewed efforts to detect an a-Gal A mutation. Subsequent gene dosage analyses identified a large a-Gal A deletion confirming her heterozygosity, and she was started...

  13. Dilemmas in SEA application

    DEFF Research Database (Denmark)

    Lyhne, Ivar

    Dilemmas in SEA Application: The DK Energy SectorIvar Lyhne - lyhne@plan.aau.dk. Based on three years of collaborative research, this paper outlines dilemmas in the application of SEA in the strategic development of the Danish energy sector. The dilemmas are based on concrete examples from practice...

  14. Uncertainty in social dilemmas

    NARCIS (Netherlands)

    Kwaadsteniet, Erik Willem de

    2007-01-01

    This dissertation focuses on social dilemmas, and more specifically, on environmental uncertainty in these dilemmas. Real-life social dilemma situations are often characterized by uncertainty. For example, fishermen mostly do not know the exact size of the fish population (i.e., resource size

  15. Uncertainty in social dilemmas

    OpenAIRE

    Kwaadsteniet, Erik Willem de

    2007-01-01

    This dissertation focuses on social dilemmas, and more specifically, on environmental uncertainty in these dilemmas. Real-life social dilemma situations are often characterized by uncertainty. For example, fishermen mostly do not know the exact size of the fish population (i.e., resource size uncertainty). Several researchers have therefore asked themselves the question as to how such uncertainty influences people’s choice behavior. These researchers have repeatedly concluded that uncertainty...

  16. The EU's Convergence Dilemma

    Directory of Open Access Journals (Sweden)

    Notermans Ton

    2015-02-01

    Full Text Available As economic stagnation continues to mark the EU in the fifth year of the euro zone crisis, political support for integration is waning. The European Parliament elections of 2014 returned a hitherto unparalleled number of Eurosceptic MEPs, with EU-critical parties becoming the largest ones in several Member States. Much of this Euroscepticism is driven by economic polarisation between core and peripheral countries. While an increasing number of voters in the northwestern creditor countries resent having to foot the bill for what they consider economic mismanagement in the periphery, voters in peripheral countries increasingly rebel against what they deem to be an economically catastrophic Diktat from Germany and its allies. Continued political support for European integration will hinge on successful income convergence in the EU but the current dilemma is that such policies might not be politically feasible. Periods of rapid convergence would seem to suggest that success depends on two main policy strategies. First, a monetary policy that promotes credit for productive purposes, leaves inflation control to other instruments, and employs selective credit rationing to prevent asset booms. Second, a vertical industrial policy prioritising selected industrial sectors. The first policy conflicts with the present framework of euro zone monetary policy, but that framework was only installed in the first place because many peripheral countries were desperately in search of an external constraint on domestic distributional conflict. Industrial policies, in turn, require a sufficient degree of state autonomy from business elites in order to be effective, but it is highly questionable whether most states in the EU possess such autonomy. Though there are, as yet hesitant, signs of a reorientation of both monetary and cohesion policy in the EU, the question of the institutional and political preconditions for their successful implementation has been largely

  17. Et klinisk etisk dilemma

    DEFF Research Database (Denmark)

    Bruun, Henriette

    2015-01-01

    symptoms. However, she agrees to meet with the community treatment team. How are they to act? Should they accept her refusal of antipsychotic medication, though they see it as the best treatment? This dilemma is analysed and described according to Beauchamps and Childress four fundamental principles: 1......Through the presentation of a concrete ethical dilemma, this article presents the praxis of a clinical ethics committee in Denmark. The dilemma was analysed in the clinical ethics committee of psychiatry in the region of Southern Denmark. The dilemma is well known in psychiatry; it concerns....... the non-maleficence principle, 2. the beneficence principle, 3.the principle of autonomy and 4. the principle of justice. Common values in Danish psychiatry; respect, proficiency and responsibility are included in the description....

  18. The Monty Hall Dilemma.

    Science.gov (United States)

    Granberg, Donald; Brown, Thad A.

    1995-01-01

    Examines people's behavior in the Monty Hall Dilemma (MHD), in which a person must make two decisions to win a prize. In a series of five studies, found that people misapprehend probabilities in the MHD. Discusses the MHD's relation to illusion of control, belief perseverance, and the status quo bias. (RJM)

  19. Dilemmas and Discarded Leadership

    Science.gov (United States)

    Dana, Joyce A.

    2009-01-01

    Women are challenged most by cultural norms, particularly sex-role norms, religious and political ideologies, and gender-structured opportunities that favor men. Although some stereotypes have loosened a bit, dilemmas remain for women who aspire to fill school district leadership positions. The author's predicament is not unique. It is something…

  20. Sustainable Consumption Dilemmas

    Directory of Open Access Journals (Sweden)

    Kees Vringer

    2017-06-01

    Full Text Available To examine which considerations play a role when individuals make decisions to purchase sustainable product varieties or not, we have conducted a large scale field experiment with more than 600 participating households. Households can vote on whether the budgets they receive should only be spent on purchasing the sustainable product variety, or whether every household in a group is free to spend their budget on any product variety. By conducting several treatments, we tested whether people tend to view sustainable consumption as a social dilemma or as a moral dilemma. We find little support for the hypothesis that social dilemma considerations are the key drivers of sustainable consumption behaviour. Participants seem to be caught in a moral dilemma in which they not only weigh their individual financial costs with the sustainable benefits but they also consider the consequences of restricting other people’s freedom of choice. Complementary survey results further substantiate this claim and show that many people are reluctant to impose restrictions on their peers, but, at the same time, our results also suggest substantial support for the government to regulate the availability of unsustainable product varieties.

  1. An ethical dilemma

    African Journals Online (AJOL)

    2015-05-08

    May 8, 2015 ... As an academic/clinical educator and congruently as an observer within this context ... As an academic/clinical educator, one is at times faced with dilemmas in student placement that challenge one's personal and ... clients could feel a sense of abandonment, loneliness and experience negative emotions.

  2. Jeb Stewart's Dilemma

    Science.gov (United States)

    Cedo, Kelli M.; Dickerson, William E.

    2010-01-01

    This case study creates a dilemma that many school districts face. Public education is under-funded. Principals are expected to be the instructional leaders and are held accountable for student achievement. Is it appropriate then for public schools to have local businesses as benefactors when teaching personnel are involved? The conflict between…

  3. Iterated crowdsourcing dilemma game

    Science.gov (United States)

    Oishi, Koji; Cebrian, Manuel; Abeliuk, Andres; Masuda, Naoki

    2014-02-01

    The Internet has enabled the emergence of collective problem solving, also known as crowdsourcing, as a viable option for solving complex tasks. However, the openness of crowdsourcing presents a challenge because solutions obtained by it can be sabotaged, stolen, and manipulated at a low cost for the attacker. We extend a previously proposed crowdsourcing dilemma game to an iterated game to address this question. We enumerate pure evolutionarily stable strategies within the class of so-called reactive strategies, i.e., those depending on the last action of the opponent. Among the 4096 possible reactive strategies, we find 16 strategies each of which is stable in some parameter regions. Repeated encounters of the players can improve social welfare when the damage inflicted by an attack and the cost of attack are both small. Under the current framework, repeated interactions do not really ameliorate the crowdsourcing dilemma in a majority of the parameter space.

  4. Animal ethics dilemma

    DEFF Research Database (Denmark)

    Dich, Trine; Hansen, Tina; Algers, Anne

    2006-01-01

    ) the blind hens; (2) ANDi the genetically modified monkey; (3) euthanasia of a healthy dog; (4) animal slaughter; and (5) rehabilitation of seals. Special consideration has been given to enhancing the pedagogic value of the program. Students can control their learning by selecting a variety of ways......'Animal Ethics Dilemma' is a freely available computer-supported learning tool (www.animalethicsdilemma.net or www.aedilemma.net) which has been developed primarily for veterinary undergraduates but is applicable also to students in other fields of animal science. The objectives of the computer...... program are to promote students' understanding of the ethics related to animal use, to illustrate ethical dilemmas that arise in animal use, to broaden students' moral imagination, and to enable students to differentiate between types of ethical argument. The program comprises five case studies: (1...

  5. Quantum prisoner dilemma under decoherence

    International Nuclear Information System (INIS)

    Chen, L.K.; Ang, Huiling; Kiang, D.; Kwek, L.C.; Lo, C.F.

    2003-01-01

    It has recently been established that quantum strategies are superior to classical ones for games such as the prisoner's dilemma. However, quantum states are subject to decoherence. In this Letter, we investigate the effects of decoherence on a quantum game, namely the prisoner dilemma, through three prototype decoherence channels. We show that in the case of prisoner dilemma, the Nash equilibria are not changed by the effects of decoherence for maximally entangled states

  6. The dilemma for Japanese students

    DEFF Research Database (Denmark)

    Martinsen, Anders

    2014-01-01

    The Japanese job hunting system inhibits Japanese students from studying abroad. A Japanese professor says it is a huge dilemma for the students.......The Japanese job hunting system inhibits Japanese students from studying abroad. A Japanese professor says it is a huge dilemma for the students....

  7. Ethical dilemmas and nursing.

    Science.gov (United States)

    Helm, A

    1984-08-01

    Professional responsibilities, tradition, and personal conscience along with legal, philosophical, and religious convictions dictate nursing interventions. Inevitably, these factors embrace life-sustaining therapies; however, in view of complications, prognosis, pain and suffering, and their own views of quality of life, some patients express wishes inconsistent with life-sustaining measures. In other situations, the health care provider as well as the patient may view heroic efforts as more debilitating than resortative. Resolving the conflict while preserving the patient's best interests requires a confrontation with the status of "do-not resuscitate" policies within th e nurse's institution, informed consent, refusal, and competency as the necessary underpinnings for the development of an ethical and legal posture within the profession, with which to approach significant decisions regarding life-sustaining therapies. Literally every hour of every day nurses are immediately and directly involved with resolving ethical dilemmas based upon judgements and interpretations of oral or written orders, patient and family wishes, professional training, and an infinite number of other factors. When clear policies or orders are lacking, the nurse is left with the burden of making a life or death decision. It is imperative that professional nurses assess the administrative, legal, and ethical ramifications of their actions in terms of ethical codes of practice, patients' rights, institutional and personal liability, civil and criminal laws, and private conscience. An understanding of these issues, passive and active euthansia, state and national trends, and uniform legislation can assist in resolutions of the no-code dilemma. Nursing as a profession must strive to develop sound and consistent guidelines and rationale for the scope of practice in ethical dilemmas.

  8. The nuclear dilemma

    International Nuclear Information System (INIS)

    Penn, J.

    1983-01-01

    Declaring nuclear preparedness 'immoral' helps to recreate the pacifism of 50 years ago. War itself is a dilemma, not the weapons with which it is waged. We must ask of the anti-war proposals: whom do they benefit On the whole people concerned are ordinary citizens who are fearful of nuclear incineration. But marching with them is a spectrum of forces with other motivations and purposes. In a real life situation of international tension or crises, numbers of weapons in combination with their particular charateristics could mean the difference between peace and outbreak of war

  9. [Ethical dilemmas in health].

    Science.gov (United States)

    Boléo-Tomé, J

    2009-01-01

    It is difficult to speak of ethic dilemmas in a society that has relativism as the oficial philosophical and political doctrine, i.e., stable values and behavior references, are denied, both in health care and in any other area of human knowledge. In the field of medical sciences it is even pretended to pass from the observational methodology to a field of manipulation and manipulability. It is the very Ethic that is presented as a dilemma. In these conditions one needs to know the lines of thought that are defended, to replace and make disappear the stable ethic references: ecletism, historicism, scientificism, pragmatism, and nihilism itself, that lead to the 'new ethic paradigm', that has created by itself a pseudo-spirituality. The truth is we are adrift in the 'Ethic of Convenience' which changes according to the majorities. In this setting the way to go is to rediscover the abandoned ethic values: only with an objective ethic, with sound references and foundations, it is possible to re-establish and perfect the patient-physician relationship, for a better social health. And this begins with the ethic problem of human life.

  10. Dilemma of dilemmas: how collective and individual perspectives can clarify the size dilemma in voluntary linear public goods dilemmas.

    Directory of Open Access Journals (Sweden)

    Daniel B Shank

    Full Text Available Empirical findings on public goods dilemmas indicate an unresolved dilemma: that increasing size-the number of people in the dilemma-sometimes increases, decreases, or does not influence cooperation. We clarify this dilemma by first classifying public goods dilemma properties that specify individual outcomes as individual properties (e.g., Marginal Per Capita Return and group outcomes as group properties (e.g., public good multiplier, mathematically showing how only one set of properties can remain constant as the dilemma size increases. Underpinning decision-making regarding individual and group properties, we propose that individuals are motivated by both individual and group preferences based on a theory of collective rationality. We use Van Lange's integrated model of social value orientations to operationalize these preferences as an amalgamation of outcomes for self, outcomes for others, and equality of outcomes. Based on this model, we then predict how the public good's benefit and size, combined with controlling individual versus group properties, produce different levels of cooperation in public goods dilemmas. A two (low vs. high benefit by three (2-person baseline vs. 5-person holding constant individual properties vs. 5-person holding constant group properties factorial experiment (group n = 99; participant n = 390 confirms our hypotheses. The results indicate that when holding constant group properties, size decreases cooperation. Yet when holding constant individual properties, size increases cooperation when benefit is low and does not affect cooperation when benefit is high. Using agent-based simulations of individual and group preferences vis-à-vis the integrative model, we fit a weighted simulation model to the empirical data. This fitted model is sufficient to reproduce the empirical results, but only when both individual (self-interest and group (other-interest and equality preference are included. Our research contributes

  11. Faced with a dilemma

    DEFF Research Database (Denmark)

    Christensen, Anne Vinggaard; Christiansen, Anne Hjøllund; Petersson, Birgit

    2013-01-01

    's legal right to choose TOP and considerations about the foetus' right to live were suppressed. Midwives experienced a dilemma when faced with aborted foetuses that looked like newborns and when aborted foetuses showed signs of life after a termination. Furthermore, they were critical of how physicians......: A qualitative study consisting of ten individual interviews with Danish midwives, all of whom had taken part in late TOP. RESULTS: Current practice of late TOP resembles the practice of normal deliveries and is influenced by a growing personalisation of the aborted foetus. The midwives strongly supported women...... counsel women/couples after prenatal diagnosis. CONCLUSIONS: The midwives' practice in relation to late TOP was characterised by an acknowledgement of the growing ethical status of the foetus and the emotional reactions of the women/couples going through late TOP. Other professions as well as structural...

  12. [Ethical dilemmas of contemporary psychiatry].

    Science.gov (United States)

    Filaković, Pavo; Pozgain, Ivan

    2008-01-01

    Ethics in the contemporary psychiatry, as well as in medicine in general, is based on the two core ethical traditions: deontological and theological. Good ethical decision takes into the consideration both traditions, and is preceded with ethical dilemmas to provide the best possible care to the patients in that moment. In the article are presented most recent research results of the literature about ethical dilemmas in psychiatry. Ethical dilemmas in everyday practice as well as compliance with the patients, psychiatric consultations, informed consent, treatment of personality disorders, pharmacological investigations, forensic psychiatry, forced hospitalisation, promotion of mental health, and dealing with the stigma of the mental diseases are showed in the article. The authors emphasize the necessity of constant questioning of ethical dilemmas in the contemporary psychiatry, because of the special status of psychiatry as a potentially risky field in practice, and because of intensive pharmacological investigations in psychiatric patients.

  13. The Rationalist's Dilemma

    Directory of Open Access Journals (Sweden)

    Vanessa Morlock

    2006-06-01

    Full Text Available In his book In Defense of Pure Reason Laurence BonJour proposed an account of a priori justification which essentially refers to so-called rational insights. Unfortunately, the reader is not equipped with a substantial answer to the question what such rational insights exactly are. And moreover, he is told that this is not an in any way decisive shortcoming of BonJour’s account of a priori justification — at least not a shortcoming which should motivate us to abandon his account. In order to support this thesis, BonJour refers to an analogy between the case of rational insights and the case of consciousness. He points out that we would not give up the use of the notion of consciousness, in spite of the fact that today there is still no satisfying answer to the question what consciousness exactly is. I will argue that the analogy BonJour refers to is in fact a persuasive one and can help him as well as other proponents of the rational-insight account to deal with some prominent objections. But taking the analogy seriously does consequently mean to undermine a favourite rationalist’s thesis: the autonomy claim. I conclude that the rationalist is confronted with a dilemma; he simply cannot have it both ways.

  14. Childhood bullying and social dilemmas.

    Science.gov (United States)

    Kohm, Amelia

    2015-03-01

    Children who witness bullying often do not defend victims. Bystanders might be reticent to intervene because they are stuck in "social dilemmas." Social dilemmas are situations in which individuals make decisions based on self-interest due to their lack of confidence that others will join with them in decisions that benefit the collective. In this study, the social dilemmas concept, which comes from game theory and social psychology, was applied to bullying for the first time. A total of 292 middle school students at a private residential school in the United States completed surveys about their bullying-related experiences within their residences of 10 to 12 students of the same gender. Multilevel modeling was employed to assess if and how attitudes, group norms, and social dilemmas predict behavior in bullying situations. The findings suggested that both individual and group factors were associated with behavior in bullying situations and that attitudes, group norms, and social dilemmas each made a unique contribution to predicting behavior in bullying situations. Aggr. Behav. 42:97-108, 2015. © 2015 Wiley Periodicals, Inc. © 2015 Wiley Periodicals, Inc.

  15. The Prisoner's Dilemma: Introducing Game Theory

    Science.gov (United States)

    Shaw, Doug J.; Miller, Catherine M.

    2015-01-01

    Since 1950, the Prisoner's Dilemma has intrigued economists and amused fans of mathematics. It presents a situation in which two players acting to their own advantage do not do as well together as two players whose actions oppose their individual interests--hence, the dilemma. Variations of the Prisoner's Dilemma have appeared in diverse…

  16. Medical ethics and ethical dilemmas.

    Science.gov (United States)

    Iyalomhe, G B S

    2009-01-01

    Ethical problems routinely arise in the hospital and outpatient practice settings and times of dilemma do occur such that practitioners and patients are at cross-roads where choice and decision making become difficult in terms of ethics. This paper attempts a synopsis of the basic principles of medical ethics, identifies some ethical dilemmas that doctors often encounter and discusses some strategies to address them as well as emphasizes the need for enhanced ethics education both for physicians and patients particularly in Nigeria. Literature and computer programmes (Medline and PsychoInfo databases) were searched for relevant information. The search showed that the fundamental principles suggested by ethicists to assist doctors to evaluate the ethics of a situation while making a decision include respect for autonomy, beneficence, non-maleficence and justice. Although the above principles do not give answers as to how to handle a particular situation, they serve as a guide to doctors on what principles ought to apply to actual circumstances. The principles sometimes conflict with each other leading to ethical dilemmas when applied to issues such as abortion, contraception, euthanasia, professional misconduct, confidentiality truth telling, professional relationship with relatives, religion, traditional medicine and business concerns. Resolution of dilemmas demand the best of the doctor's knowledge of relevant laws and ethics, his training and experience, his religious conviction and moral principles as well as his readiness to benefit from ethics consultation and the advice of his colleagues. Ethics education should begin from the impressionable age in homes, continued in the medical schools and after graduation to ensure that doctors develop good ethical practices and acquire the ability to effectively handle ethical dilemmas. Also, education of patients and sanction of unethical behaviour will reduce ethical dilemmas.

  17. Sustainability dilemmas in emerging economies

    Directory of Open Access Journals (Sweden)

    Rama K. Jayanti

    2014-06-01

    Full Text Available Increasing evidence of climate change is forcing businesses to play an active role in reducing sustainability burdens and preserving resources for future generations. Extant research on sustainability has an exclusive focus on developed countries with stringent environmental regulations and activist scrutiny. Emerging markets present interesting dilemmas since rapid mass urbanisation aimed at raising standards of living poses concomitant threats to environmental health. This round table aimed to showcase best practices in sustainability within the Indian business context. Insights from the discussion regarding sustainability dilemmas provide a fertile ground for bench marking global sustainability best practices.

  18. Ethical dilemmas in veterinary medicine.

    Science.gov (United States)

    Morgan, Carol A; McDonald, Michael

    2007-01-01

    Veterinarians frequently encounter situations that are morally charged and potentially difficult to manage. Situation involving euthanasia, end-of-life care, economics, and inadequate provision of care create practical and moral dilemmas. Ethical tension may be attributable to differences in beliefs regarding the moral value of animals, client and veterinary responsibilities, and deciding what is best for an animal. Veterinarians can employ communication skills used in medical situations to explore the reasons underpinning ethical dilemmas and to search for solutions with clients, staff, and colleagues.

  19. Ethical Dilemmas for School Administrators

    Science.gov (United States)

    Denig, Stephen J.; Quinn, Terrence

    2001-01-01

    Schools are ethical organizations. The daily schedule of educational administrators is filled with ethical dilemmas and moral decisions. As reflective practitioners, school leaders know that the decisions that are made and the values that underlie those decisions are filled with moral implications for the entire school community. In this paper,…

  20. Ethical Dilemmas and Modern Journalists.

    Science.gov (United States)

    Izard, Ralph S.; Hesterman, Vicki

    In a study to examine journalistic integrity, two recent surveys answered by a combined total of 1,936 American journalists requested responses to questions as well as to specific hypothetical ethical dilemmas. In Survey A (conducted in 1983), questions were structured to provide information on beliefs and/or news media policy in four categories…

  1. Temporal factors in resource dilemmas

    NARCIS (Netherlands)

    Hendrickx, L; Poortinga, W; van der Kooij, R

    The conflict between present and future consumption lies at the heart of resource dilemmas (RDs), yet the role of time has received little attention in this research area. Emphasis was on factors related to the social rather than the temporal conflict inherent in an RD. We propose a model that deals

  2. Ethical dilemmas in community mental health care.

    Science.gov (United States)

    Liégeois, A; Van Audenhove, C

    2005-08-01

    Ethical dilemmas in community mental health care is the focus of this article. The dilemmas are derived from a discussion of the results of a qualitative research project that took place in five countries of the European Union. The different stakeholders are confronted with the following dilemmas: community care versus hospital care (clients); a life with care versus a life without care (informal carers); stimulation of the client toward greater responsibility versus protection against such responsibility (professionals); budgetary control versus financial incentives (policy makers), and respect for the client versus particular private needs (neighbourhood residents). These dilemmas are interpreted against the background of a value based ethical model. This model offers an integral approach to the dilemmas and can be used to determine policy. The dilemmas are discussed here as the result of conflicting values-namely autonomy and privacy, support and safety, justice and participation, and trust and solidarity.

  3. Evidence, Ethics & Social Policy Dilemmas

    Directory of Open Access Journals (Sweden)

    Steven I. Miller

    1993-07-01

    Full Text Available Within the philosophy of the social sciences, the relationship between evidence, ethics, and social policy is in need of further analysis. The present paper is an attempt to argue that while important social policies can, and perhaps ought to be, grounded in ethical theory, they are seldom articulated in this fashion due to the ambiguity surrounding the "evidence condition." Using a consequentialist-utilitarian framework, and a case study of a policy dilemma, the authors analyze the difficulties associated with resolving policy-based dilemmas which must appeal to evidential support as a justification for an ethical stand. Implication for the relevance of ethics to social policy formulation are discussed in detail.

  4. Education confronts the energy dilemma

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-01-01

    The conference was convened to present a role that America's schools could play in solving or coping with the energy crisis. Eleven sessions were conducted to fulfill this concern: Our Energy Crisis and Education: A Critical Assessment; The Energy Agenda at the Office of Education; Energy Resources: Scenarios for the Future; The Moral Dilemma of Energy Education; Constraints Influencing Education's Role; Energy Education: What's Been Done to Date; Practitioners Discuss Their Future Roles, Responsibilities; Politics of Energy Education; Confronting the Energy Dilemma; The Meaning of Scarcity; and The Impact of the Carter Energy Program on American Schools. Summary reports and reactions to the conference conclude the proceedings. (MCW)

  5. Palliative sedation and ethical dilemma

    Directory of Open Access Journals (Sweden)

    Juri Salamah

    2018-01-01

    Full Text Available Palliative sedation is a unique concern for the patient as well as the family. It is a difficult serious ethical dilemma for the physicians to handle. The conflicting ethical principles of autonomy, beneficence and nonmaleficence in continuing versus discontinuing all supportive devices raise concerns among health professionals whether this is euthanasia (physician-assisted suicide or is just prolonging the patient's unnecessary suffering.

  6. The dilemmas of victim positioning

    Directory of Open Access Journals (Sweden)

    Dorte Marie Søndergaard

    2015-08-01

    Full Text Available This article centres on some of the dilemmas contained within victim positioning. Such dilemmas are often overlooked by the authorities involved with people subjected to relational aggression. 2 For example, when teachers rule out cases of bullying because the victim has 'participated in' or 'laughed at' some of the bullies' initiatives, or when a rape victim's status as a victim is questioned because, in the lead up to the assault, she was supposedly friendly to the rapist. In these cases, it could be useful to explore the reason for the bullying victim's apparent collusion or to better understand the premises for the rape victim's positioning options in relation to the perpetrator. In other words, it could be fruitful to explore the dynamics and dilemmas of the victim position. In this article, I aim to reflect on the motivational conditions of the victim phenomenon. These reflections are based on an analysis of qualitative data produced through interviews with school children as well as on relevant secondary literature.

  7. Ethics dilemmas of early detection of obesity

    DEFF Research Database (Denmark)

    Vallgårda, Signild

    2016-01-01

    Aim: To discuss the ethics dilemmas of the early detection of overweight and obesity. Methods: Analysis of the ethical aspects of early detection. Results: The early detection of overweight and obesity entails a number of ethical dilemmas because it may both be helpful and harmful. It may help...

  8. Diversity in sexual health: problems and dilemmas.

    NARCIS (Netherlands)

    Rademakers, J.; Mouthaan, I.; Neef, M. de

    2005-01-01

    The increase in migrant populations in western Europe has led to specific problems and dilemmas in the area of sexual and reproductive health and service provision. In general, these problems and dilemmas can be divided into four categories: (1) epidemiology of diseases and risk factors; (2)

  9. Diversity in sexual health: Problems and dilemmas

    NARCIS (Netherlands)

    Rademakers, J.; Mouthaan, I.; Neef, M. de

    2005-01-01

    The increase in migrant populations in western Europe has led to specific problems and dilemmas in the area of sexual and reproductive health and service provision. In general, these problems and dilemmas can be divided into four categories: (1) epidemiology of diseases and risk factors; (2)

  10. Dilemmas in Lung Cancer Staging.

    Science.gov (United States)

    Vlahos, Ioannis

    2018-05-01

    The advent of the 8th edition of the lung cancer staging system reflects a further meticulous evidence-based advance in the stratification of the survival of patients with lung cancer. Although addressing many limitations of earlier staging systems, several limitations in staging remain. This article reviews from a radiological perspective the limitations of the current staging system, highlighting the process of TNM restructuring, the residual issues with regards to the assignment of T, N, M descriptors, and their associated stage groupings and how these dilemmas impact guidance of multidisciplinary teams taking care of patients with lung cancer. Crown Copyright © 2018. Published by Elsevier Inc. All rights reserved.

  11. Ethical Dilemmas when Diagnosing Hypertension

    Directory of Open Access Journals (Sweden)

    Sandra Santana López

    2012-12-01

    Full Text Available A review on the ethical dilemmas in the diagnosis of hypertension and some elements in the emergence of the bioethics concept was performed. Ethical conflicts that appear at each stage of diagnosis of hypertension: at the time of providing the information, at the point of indication and performance of diagnostic tests, when communicating the diagnosis and during subsequent decision making were identified. We conclude that technological development will introduce new ethical decisions in the diagnosis of hypertension that will increasingly involve the interests of society and create, in one way or another, ethical and moral conflict in the decision making process.

  12. Delusion or obsession: Clinical dilemma

    Directory of Open Access Journals (Sweden)

    Gandhi Priya

    2012-07-01

    Full Text Available Abstract Background A 52-year old lady presented for admission with severe depression characterised by suicidal ideation and delusional belief. Case presentation Her treatment regime was reviewed and modified. The dilemma was whether she suffered from a psychotic depression with delusion or an obsessional disorder. She responded well to change of antipsychotic medication. Conclusions Her depression went in remission and her delusional belief decreased in intensity. She also gained reasonable insight into her problem. She is currently being followed up in the psychiatric outpatient clinic.

  13. Resolving Ethical Dilemmas in Financial Audit

    OpenAIRE

    Professor PhD Turlea Eugeniu; PhD Student Mocanu Mihaela

    2010-01-01

    Resolving ethical dilemmas is a difficult endeavor in any field and financial auditing makes no exception. Ethical dilemmas are complex situations which derive from a conflict and in which a decision among several alternatives is needed. Ethical dilemmas are common in the work of the financial auditor, whose mission is to serve the interests of the public at large, not those of the auditee’s managers who mandate him/her. The objective of the present paper is to offer support in resolving ethi...

  14. Activation of social norms in social dilemmas

    DEFF Research Database (Denmark)

    Biel, Anders; Thøgersen, John

    Taking rational choice theory for granted, cooperation in social dilemmas may be seen as mysterious. In one-shot dilemmas where subjects unknown to one another interact and make their decisions anonymously, cooperation could even be regarded as lunacy. Several authors have challenged this view......, though. Research has also identified various factors that imply why people cooperate or defect in social dilemmas and what motivations that might guide the decision in one way or the other. Here, a closer look will be taken at social norms as a reason for departure from rational choice, a factor...

  15. Activation of social norms in social dilemmas

    DEFF Research Database (Denmark)

    Biel, Anders; Thøgersen, John

    2007-01-01

    Taking rational choice theory for granted, cooperation in social dilemmas may be seen as mysterious. In one-shot dilemmas where subjects unknown to one another interact and make their decisions anonymously, cooperation could even be regarded as lunacy. Several authors have challenged this view......, though. Research has also identiWed various factors that imply why people cooperate or defect in social dilemmas and what motivations that might guide the decision in one way or the other. Here, a closer look will be taken at social norms as a reason for departure from rational choice, a factor...

  16. The dilemmas of victim positioning

    DEFF Research Database (Denmark)

    Søndergaard, Dorte Marie

    2015-01-01

    Based on a conceptualization of bullying and relational aggression in groups as an effect of social dynamics rather than individual deficits – this article reflects upon some of the intricate mechanisms and dilemmas involved in victim positioning. Victims of bullying and relational aggression often....... The hopes of (eventual) social belonging may in that sense work paradoxically as a strong agent in the denial of oppression and marginalization. The article is theoretically informed by poststructuralist conceptualizations and grounded in cases of bullying and marginalization (one of them involving rape......). One case is taken from the empirical data produced by the author and a research project on bullying among children (eXbus: Exploring Bullying in School). Two other cases are borrowed from publications of respectively B. Davies from Australia and A. Evaldsson from Shweden. The article opens insights...

  17. Electronic Commerce: A Taxing Dilemma

    Directory of Open Access Journals (Sweden)

    Steven John Simon

    2002-01-01

    Full Text Available In the last five years, remote selling-led by online organizations - has surged. The resulting growth has created concern among both traditional and remote sellers as they jockey for improved competitive position and governmental entities, in particular US states, over the erosion of their tax revenues as sales are diverted to remote sellers. This paper explores the issues and potential solutions surrounding the e-commerce tax dilemma. It provides a current assessment of the taxation environment for individuals and organizations impacted by the tax debate. Those individuals and organizations might include online business customers, remote sellers both traditional (mail order and online, tax equity organizations, and governmental bodies. Current tax obligations are explored based on landmark legal decisions. Potential short and long -term solutions are assessed.

  18. Diskursive dilemmaer i ledelse og organisation

    DEFF Research Database (Denmark)

    Frimann, Søren

    2016-01-01

    Kapitlet diskuterer de forskellige og ofte modstridende opfattelser af ledelse i organisationer og i ledelsesteorier. Forskellige diskurser om ledelse og organisation giver ofte udfordringer og dilemmaer i teori og i organisationers praksis samt mellem konsulentydelser, lederuddannelser og den...... praktiske virkelighed i organisationer. Dilemmaer viser sig ofte i konkret sprogbrug som semantiske modsætningspar, for eksempel udvikling-drift, management-leadership, individ-gruppe, forandring-stabilitet, kontrol-tillid, resultater-relationer, produkt-proces, direktiv leder-leder som facilitator....../coach/konsulent. Målet med dette kapitel er at skabe et overblik på et metaplan over forskellige paradigmer inden for organisation, kommunikation og ledelse, som ofte udgør den klangbund, dilemmaer og modsætninger udspringer af i teori og praksis.Først introduceres en case og empiriske eksempler fra lederes dilemmaer og...

  19. Dilemmaer i tillidsrepræsentant-arbejdet

    DEFF Research Database (Denmark)

    Sommer, Finn M.; Ahrenkiel, Annegrethe; Dybbroe, Betina

    2006-01-01

    Arbejdet som tillidsrepræsentant (TR) rummer en lang række udfordringer, prioriteringer og dilemmaer, som den enkelte TR må håndtere. De mange dilemmaer, som den enkelte TR står i, som vi har set og oplevet, peger på, at der ikke kun er én rigtig måde at forholde sig til disse på. Vælger TR'en den...... ene pol i et oplevet dilemma, betyder det samtidig, at den anden pol nedtones eller udelukkes. Ofte anses begge poler i hverdagens dilemmaer som betydningsfulde, både for den enkelte TR og for medlemmerne, sygeplejefaget og Dansk Sygeplejeråd som organisation. Det er nogle af de foreløbige resultater...

  20. Dynamics of spatial traveler's dilemma games

    International Nuclear Information System (INIS)

    Tanimoto, Jun

    2014-01-01

    By examining payoff structures, we elucidate the traveler's dilemma (TD) game. It can be said that the TD game as the 2-player and multi-strategy game is a variant of the donor and recipient game, which itself is a subclass of the 2-player and 2-strategy (2 × 2) prisoner's dilemma, in the sense that the Nash equilibrium and fair Pareto optimum appear on mutual defection and mutual cooperation, respectively. Exploring spatial TD games, we observed that the network reciprocity of TD games can be universally scaled with a single dilemma parameter as can be performed in usual 2 × 2 games. Furthermore, we observed a local peak event reflecting a resurging cooperation fraction with increasing dilemma strength after degradation to a low level. We successfully demonstrate that this is caused by the specific dynamics of TD games created by their specific payoff structure. (paper)

  1. Clinical ethics consultation's dilemma, and a solution.

    Science.gov (United States)

    Rasmussen, Lisa M

    2011-01-01

    Clinical ethics consultation is on the horns of a dilemma. One horn skewers the field for its lack of standards, while the other horn skewers it for proposing arbitrary or deeply contested foundations. I articulate the dilemma by discussing several critiques of the field and the challenge of formulating standards and suggest that the solution lies, at least until a robust consensus emerges, with establishing a list of proscriptive standards to guide the field.

  2. Why There are No Dilemmas in Widerquist’s ‘A Dilemma for Libertarians’

    Directory of Open Access Journals (Sweden)

    Lamont Rodgers

    2009-10-01

    Full Text Available Karl Widerquist has recently argued that libertarians face two dilemmas. The first dilemma arises because, contrary to what Widerquist takes libertarians to suggest, there is no conceptual link between robust property rights and the libertarian state. Private property rights can legitimately yield non-libertarian states. Libertarians must thus remain committed either to robust property rights or the libertarian state. I call this the “Conceptual Dilemma.”The second dilemma is empirical in nature. Libertarians can try to undermine state property rights by showing that the means by which all present states came to have their property was unjust. However, doing so would presumably undermine almost all the property claims of private individuals. So the dilemma is that libertarians can undermine state property rights only by undermining individual property rights, on the one hand. On the other, libertarians can vindicate private property rights of individuals only by vindicating state property rights. I call this the “Empirical Dilemma.”I attempt to diffuse both of these dilemmas here. I argue that the Conceptual Dilemma relies on a misunderstanding of the libertarian’s commitments. In particular, I show that libertarians need not think robust property rights can yield states more extensive than Nozick’s minimal state. I then argue that Widerquist ignores libertarian scholarship aimed at meeting the Empirical Dilemma. Many libertarians have attempted to demonstrate that there are legitimate private property rights which are illegitimately disregarded by current states. The upshot of this discussion is that there are no genuine dilemmas posed by Widerquist’s “A Dilemma for Libertarians.”

  3. Prisoner's dilemma in cancer metabolism.

    Directory of Open Access Journals (Sweden)

    Irina Kareva

    Full Text Available As tumors outgrow their blood supply and become oxygen deprived, they switch to less energetically efficient but oxygen-independent anaerobic glucose metabolism. However, cancer cells maintain glycolytic phenotype even in the areas of ample oxygen supply (Warburg effect. It has been hypothesized that the competitive advantage that glycolytic cells get over aerobic cells is achieved through secretion of lactic acid, which is a by-product of glycolysis. It creates acidic microenvironment around the tumor that can be toxic to normal somatic cells. This interaction can be seen as a prisoner's dilemma: from the point of view of metabolic payoffs, it is better for cells to cooperate and become better competitors but neither cell has an incentive to unilaterally change its metabolic strategy. In this paper a novel mathematical technique, which allows reducing an otherwise infinitely dimensional system to low dimensionality, is used to demonstrate that changing the environment can take the cells out of this equilibrium and that it is cooperation that can in fact lead to the cell population committing evolutionary suicide.

  4. Social learning in cooperative dilemmas.

    Science.gov (United States)

    Lamba, Shakti

    2014-07-22

    Helping is a cornerstone of social organization and commonplace in human societies. A major challenge for the evolutionary sciences is to explain how cooperation is maintained in large populations with high levels of migration, conditions under which cooperators can be exploited by selfish individuals. Cultural group selection models posit that such large-scale cooperation evolves via selection acting on populations among which behavioural variation is maintained by the cultural transmission of cooperative norms. These models assume that individuals acquire cooperative strategies via social learning. This assumption remains empirically untested. Here, I test this by investigating whether individuals employ conformist or payoff-biased learning in public goods games conducted in 14 villages of a forager-horticulturist society, the Pahari Korwa of India. Individuals did not show a clear tendency to conform or to be payoff-biased and are highly variable in their use of social learning. This variation is partly explained by both individual and village characteristics. The tendency to conform decreases and to be payoff-biased increases as the value of the modal contribution increases. These findings suggest that the use of social learning in cooperative dilemmas is contingent on individuals' circumstances and environments, and question the existence of stably transmitted cultural norms of cooperation. © 2014 The Author(s) Published by the Royal Society. All rights reserved.

  5. Ethical Dilemmas in Teaching and Nursing: The Israeli Case

    Science.gov (United States)

    Shapira-Lishchinsky, Orly

    2010-01-01

    This article explores a cross-occupational approach for dealing with ethical dilemmas by comparing teaching and nursing. Findings indicate more shared patterns of ethical dilemmas (such as caring for needs for others versus following formal codes) than dilemmas specific to teaching (e.g., advancing universal values versus advancing knowledge) or…

  6. Towards a framework for the elicitation of dilemmas.

    Science.gov (United States)

    Burger, Marc J C

    2008-08-01

    This paper covers the main findings of the doctoral research that was concerned with seeking to extend aspects of dilemma theory. In professional practice, the Trompenaars Hampden-Turner Dilemma Reconciliation Process(TM) is a vehicle delivering dilemma theory in application. It informs a manager or leader on how to explore the dilemmas they face, how to reconcile the tensions that result, and how to structure the action steps for implementing the reconciled solutions. This vehicle forms the professional practice of the author who seeks to bring more rigor to consulting practice and thereby also contribute to theory development in the domain. The critical review of dilemma theory reveals that previous authors are inconsistent and variously invalid in their use of the terms 'dilemma theory,' 'dilemma methodology,' 'dilemma process,' 'dilemma reconciliation,' etc., and therefore an attempt is made to resolve these inconsistencies by considering whether 'dilemmaism' at the meta-level might be positioned as a new paradigm of inquiry for (management) research that embodies ontological, epistemological, and methodical premises that frame an approach to the resolution of real world business problems in (multi) disciplinary; (multi) functional and (multi) cultural business environments. This research offers contributions to knowledge, professional practice and theory development from the exploration of the SPID model as a way to make the elicitation of dilemmas more rigorous and structured and in the broader context of exploring 'dilemmaism' as a new paradigm of inquiry.

  7. Social Values, Subjective Transformations, and Cooperation in Social Dilemmas

    Science.gov (United States)

    Simpson, Brent

    2004-01-01

    A persistent anomaly in the social dilemmas literature is the surprisingly high level of cooperation observed in experimental investigations of the one-shot Prisoners' Dilemma (PD). The exchange heuristic hypothesis and related approaches explain this finding by arguing that actors subjectively transform PD into the Assurance Dilemma. A tendency…

  8. Novice Teachers' Case Dilemmas: Surprising Perspectives Related to Diversity.

    Science.gov (United States)

    Mastrilli, Thomas; Sardo-Brown, Deborah; Hinson, Stephanie

    This study described novice teachers' case dilemmas, analyzing them for assumptions made by teachers about teaching and learning as well as for solutions to the dilemmas. Twenty-one of the thirty-six dilemmas emphasized either minority students, students of low socioeconomic status, or students from single-parent households. Among the issues…

  9. Philanthropic dilemmas and the nurse administrator role.

    Science.gov (United States)

    Klein, Tracy

    2014-01-01

    Nurse administrators are in a position to encounter ethical dilemmas when evaluating philanthropic proposals. Nurses may have little formal training in ethics, or they may be most experienced with ethical frameworks that apply primarily to clinical patient encounters. Gifts of goods, services, education, or other benefits to nurses may create ethical dilemmas. Philanthropic ethics and potential dilemmas are discussed in nonnursing professions such as medicine and nonprofit administration but rarely explored in the nursing administration context. Nurse administrators in a position to evaluate generous offers of philanthropy should identify key components to fully assess the ethics of their receipt. A survey of several resources is done to provide nurse administrators with the foundation to develop policies related to philanthropy if they are absent, preferably in advance of the offer. Recommendations for assessment and evaluation of philanthropic proposals are provided to aid nurse administrators in their synthesis and application of ethical principles from multiple sources.

  10. Ethical-Economic Dilemmas in Business Education

    Directory of Open Access Journals (Sweden)

    Anna Remišová

    2014-12-01

    Full Text Available The main purpose of the article is to support the idea of institutionalizing business ethics education at all business schools. Further, the article stresses the importance of using ethical-economic dilemmas in business ethics education. It argues that business students should learn that managerial work is too complex to make do with expertise and experience and help them to acquire the skill of ethical reflection of economic activity. Solving ethical-economic dilemmas in business ethics courses helps to develop cognitive skills in considering economic or managerial problems on the basis of ethical and economic interaction. In order to support the main purpose stated above, we aimed at getting a picture of how respondents assess and solve an ethical-economic dilemma. Hence, this article presents results of an empirical investigation of the ethical decision-making (EDM process on a sample of Slovak students of Management.

  11. Mastering the Gray Zone: Understanding a Changing Era of Conflict

    Science.gov (United States)

    2015-12-01

    sequentially or in parallel, to a range of other tactics largely built around psychological opera- tions and information warfare. The goal is to...choice is the prisoner’s dilemma: The assumed players can see the lineup of rewards. Gray zone strategies complicate this process and raise ambiguities

  12. ETHICAL DILEMMAS IN THE PUBLIC SECTOR

    Directory of Open Access Journals (Sweden)

    Silvia PUIU

    2015-06-01

    Full Text Available The article offers an insight on the ethical dilemmas specific to a public sector and brings some suggestions for coping with these. Ethics management is a complex system that deals also with ethical dilemmas. The instruments and tools of ethics management are helpful in dealing with these issues. There are a lot of cases in which public employees do not know what to do or how to react in a certain situation, so, a debate on this subject is very useful for people working in public institutions.

  13. Profession Dilemmas in the art educational field

    Directory of Open Access Journals (Sweden)

    Eva Lutnæs

    2015-10-01

    Full Text Available The anthology Kunstner eller lærer? Profesjonsdilemmaer i musikk- og kunst­­pedagogisk utdanning (Artist or teacher? Profession Dilemmas in the music and art educational fields is edited by Elin Angelo and Signe Kalsnes. The reviewer concludes there is a label identity construction through the use of terms, including how you choose to position yourself and how you are categorised by others, which makes the book a very valuable contribution to the discussion of the professional dilemma and professional identity of students, teachers and researchers in the art educational fields.

  14. Partner choice cooperation in prisoner's dilemma

    Science.gov (United States)

    Wang, Qi; Xu, Zhaojin; Zhang, Lianzhong

    2017-12-01

    In this paper, we investigated the cooperative behavior in prisoner's dilemma when the individual behaviors and interaction structures could coevolve. Here, we study the model that the individuals can imitate the strategy of their neighbors and rewire their social ties throughout evolution, based exclusively on a fitness comparison. We find that the cooperation can be achieved if the time scale of network adaptation is large enough, even when the social dilemma strength is very strong. Detailed investigation shows that the presence or absence of the network adaptation has a profound impact on the collective behavior in the system.

  15. [Ethical Dilemmas in Practice of Medicine Child].

    Science.gov (United States)

    Ruiz López, Justo; Navarro Zaragoza, Javier; Carrillo Navarro, Francisco; Luna Maldonado, Aurelio

    2017-01-01

    After reviewing the existing bibliography in the last 20 years, we concluded that there is a lack of information regarding the ethical conflicts that affect to pediatrics in their daily practice. It produces certain degree of uncertainty in these professionals at the time of solving these problems. We made a systematic search in the main data bases, finding more than 150 articles related, of which 80 were considered outstanding. After studying them, we have found 40 ethical dilemmas, related to some principle of solution and that we described in this article. Through them we can find such important dilemmas as those related to physical disability, palliative care or consent from children.

  16. Fundamental dilemmas in contemporary psychotherapy: a transtheoretical concept.

    Science.gov (United States)

    Scaturo, Douglas J

    2002-01-01

    The transtheoretical nature of fundamental dilemmas in contemporary psychotherapy is explored. The basic distinction between technical and ethical dilemmas in clinical practice is discussed, as well as the ramifications for the psychotherapist. Clinical dilemmas identified by survey research studies and interviews with master psychotherapists are reviewed. In addition to dilemmas relevant to circumscribed areas of psychotherapy, such as brief therapy, managed mental health care, sexual questions, feminist therapy, dilemmas fundamental to the psychotherapeutic process as a whole are examined. Finally, clinical examples are provided that include such issues as hospitalization of the suicidal patient, dealing with known contraindications, treating the intractable patient, and self-care of the psychotherapist.

  17. Cultural Values in Intergroup and Single-Group Social Dilemmas.

    Science.gov (United States)

    Probst; Carnevale; Triandis

    1999-03-01

    Do cultural values influence the manner in which people cooperate with one another? This study assessed cultural characteristics of individuals and then related these characteristics to cooperative behavior in social dilemmas. Participants were assessed for their degree of vertical and horizontal individualism and collectivism, cultural values identified by Triandis (1995). They made choices in either a single-group or an intergroup social dilemma. The single-group dilemma entailed a three-person dilemma; the intergroup dilemma was identical but added subgroup competition, i.e., an opposing three-person group. The results indicated an interaction between cultural characteristics and type of dilemma for cooperation. The single-group versus intergroup effect reported by Bornstein and Ben-Yossef (1994) was replicated, but only for vertical individualists. The vertical individualists were least cooperative in the single-group dilemma but were more cooperative in the intergroup dilemma-where cooperation with the group maximized personal outcomes. The vertical collectivists were most cooperative in the single-group dilemma but were less cooperative in the intergroup dilemma- where group defection resulted in maximum group outcomes. The horizontal individualists and collectivists exhibited an intermediate level of cooperation, with no differences in cooperation between the single-group and intergroup dilemmas. Taken together, the results suggest that the relationship between cultural values and cooperation, in particular with reference to vertical and horizontal components of individualism and collectivism, is more complex than has been suggested in past research. Copyright 1999 Academic Press.

  18. Dilemma and quantum battle of sexes

    International Nuclear Information System (INIS)

    Nawaz, Ahmad; Toor, A H

    2004-01-01

    We analysed quantum version of the game battle of sexes using a general initial quantum state. For a particular choice of initial entangled quantum state it is shown that the classical dilemma of the battle of sexes can be resolved and a unique solution of the game can be obtained

  19. The psychologist's dilemma ESHHS Paper Utrecht 2010

    NARCIS (Netherlands)

    Van Hezewijk, René; Stam, Henderikus

    2010-01-01

    The Psychologists Dilemma Game René van Hezewijk and Henderikus Stam Among the recurrent cleavages that define 20th century psychology is the deep division between psychologies that distance the psychologist from the phenomenon under investigation from those that engage the question under

  20. Regionalization of the Pohorsko Podravje - some dilemmas

    Directory of Open Access Journals (Sweden)

    Ivan Gams

    1991-12-01

    Full Text Available Dilemmas of the regionalisation of the mountainous part of the basin of the Drava( Pohorsko Podravje. In the planned new geographical monograph of Slovenia, also the Pohorsko Podravje shoud be represented in frame of mezoregions as a complex of actual regional factors, and in frame of submacroregions the genesis of the regional elements mostlv.

  1. Experiences and Non-experiences of Dilemmas

    DEFF Research Database (Denmark)

    Ellegaard, Tomas

    with special needs and seemed to be intensified by lack of space or small 22 number of staff. Conversely dilemmas seemed to be reduced by outdoor activities or more staff. A significant finding was also, that pedagogues in principle value inclusion and community but in practice seem to choose a paradoxical...

  2. Group Discussion and Cooperation in Social Dilemmas.

    Science.gov (United States)

    Bouas, Kelly S.; Komorita, S. S.

    1996-01-01

    Face-to-face discussion has been shown to increase cooperation behavior in social dilemmas. Two general explanations of this effect were tested: group identity and perception of consensus. Female undergraduate students (N=160) participated in four-person groups in one of four experimental conditions. Findings indicate the most plausible…

  3. The Marihuana Dilemma: Challenge to Commanders.

    Science.gov (United States)

    The marihuana dilemma poses a major challenge to commanders in the US Army today. The problem was analyzed as to the characteristics of the drug...available to commanders to meet the challenge. The essay concludes that marihuana should not be legalized; drug users or former drug users should not be

  4. Dilemmas and Deliberations in Reflexive Ethnographic Research

    Science.gov (United States)

    Robinson, Janean Valerie

    2014-01-01

    This paper traces insights into the challenges and dilemmas experienced whilst researching students' interpretations and understandings of the Behaviour Management in Schools policy in Western Australia. Journal records, supported by student transcripts, are woven together in a reflexive ethnographic journey--from the beginning phase of searching…

  5. The Komagata Maru Incident: A Moral Dilemma.

    Science.gov (United States)

    Hubbard, Keith

    1982-01-01

    Presents a moral dilemma for use in K-12 social studies courses focusing on the incident of the Japanese ship, the Komagata Maru, and its Sikh passengers who unsuccessfully attempted to enter Canada in 1914. It is intended to help Canadian youth understand racial relations between East Asians and Canadians. (AM)

  6. Ethical Dilemmas in Retail Merchandising: Student Perceptions

    Science.gov (United States)

    Paulins, V. Ann; Lombardy, Lisa

    2005-01-01

    Ethical dilemmas observed by students in retailing internships were the basis for a survey in which students indicated their perceptions as to whether case situations involved unethical behavior. Expanded case situations were offered to students for further exploration. The specific questions posed in this study included the following: (1) In what…

  7. Emotions and Behavior Regulation in Decision Dilemmas

    Directory of Open Access Journals (Sweden)

    Joaquin Gómez-Miñambres

    2017-05-01

    Full Text Available We introduce a dynamic model of emotional behavior regulation that can generalize to a wide range of decision dilemmas. Dilemmas are characterized by availability of mutually exclusive goals that a decision maker is dually motivated to pursue. In our model, previous goal pursuant decisions produce negative emotions that regulate an individual’s propensity to further pursue those goals at future times. This emotional regulation of behavior helps explain the non-stationarity and switching observed between so-called “preferences” revealed in repeated decision dilemmas (e.g., by choosing A over B at time 1, then choosing B over A at time 2. We also explain how behavior regulation under dilemma conditions is affected by the set of available options and how the strength and decay rate of emotions affect the tendency to choose behaviors pursuant of extremely (rather than moderately different options over time. We discuss how emotional behavior regulation insights provided by our model can extend to a variety of topics including approach and avoidance, temptation and self-control, moral balancing, impulse buying and shopping momentum, dieting and exercise, work and leisure, sleep regulation, cooperation, and competition.

  8. Education in Aboriginal Communities: Dilemmas around Empowerment.

    Science.gov (United States)

    Taylor, Donald M.; And Others

    1993-01-01

    Sudden empowerment of Canadian Aboriginal communities has raised many dilemmas concerning community controlled education, including issues related to educational planning and decision making by inexperienced administrators, focusing educational goals on the community versus mainstream society, discontinuities between community and school culture,…

  9. Social Functions of Emotions in Social Dilemmas

    NARCIS (Netherlands)

    M.J.J. Wubben (Maarten)

    2010-01-01

    textabstractSocial dilemmas, or situations in which individual and collective interests collide, elicit strong emotions. But are these emotions socially functional in that they help establish cooperation? Generally, they are, as four empirical chapters showed. In dyadic relations, refusal to return

  10. Communication and Guilt in a Prisoner's Dilemma

    NARCIS (Netherlands)

    Miettinen, T.; Suetens, S.

    2008-01-01

    In this paper we measure experienced guilt in a prisoner’s dilemma experiment with pre-play communication. We find that feelings of guilt only arise in the case of unilateral defection and that they are stronger when players have mutually agreed to cooperate. We also find that fining unilateral

  11. Inequality and Procedural Justice in Social Dilemmas

    NARCIS (Netherlands)

    Aksoy, Ozan; Weesie, Jeroen

    2009-01-01

    This study investigates the influence of resource inequality and the fairness of the allocation procedure of unequal resources on cooperative behavior in social dilemmas. We propose a simple formal behavioral model that incorporates conflicting selfish and social motivations. This model allows us to

  12. Nurse middle manager ethical dilemmas and moral distress.

    Science.gov (United States)

    Ganz, Freda D; Wagner, Nurit; Toren, Orly

    2015-02-01

    Nurse managers are placed in a unique position within the healthcare system where they greatly impact upon the nursing work environment. Ethical dilemmas and moral distress have been reported for staff nurses but not for nurse middle managers. To describe ethical dilemmas and moral distress among nurse middle managers arising from situations of ethical conflict. The Ethical Dilemmas in Nursing-Middle Manager Questionnaire and a personal characteristics questionnaire were administered to a convenience sample of middle managers from four hospitals in Israel. Middle managers report low to moderate levels of frequency and intensity of ethical dilemmas and moral distress. Highest scores were for administrative dilemmas. Middle managers experience lower levels of ethical dilemmas and moral distress than staff nurses, which are irrespective of their personal characteristics. Interventions should be developed, studied, and then incorporated into institutional frameworks in order to improve this situation. © The Author(s) 2014.

  13. Research Dilemmas with Behavioral Big Data.

    Science.gov (United States)

    Shmueli, Galit

    2017-06-01

    Behavioral big data (BBD) refers to very large and rich multidimensional data sets on human and social behaviors, actions, and interactions, which have become available to companies, governments, and researchers. A growing number of researchers in social science and management fields acquire and analyze BBD for the purpose of extracting knowledge and scientific discoveries. However, the relationships between the researcher, data, subjects, and research questions differ in the BBD context compared to traditional behavioral data. Behavioral researchers using BBD face not only methodological and technical challenges but also ethical and moral dilemmas. In this article, we discuss several dilemmas, challenges, and trade-offs related to acquiring and analyzing BBD for causal behavioral research.

  14. The psychologist's dilemma ESHHS Paper Utrecht 2010

    OpenAIRE

    Van Hezewijk, René; Stam, Henderikus

    2010-01-01

    The Psychologists Dilemma Game René van Hezewijk and Henderikus Stam Among the recurrent cleavages that define 20th century psychology is the deep division between psychologies that distance the psychologist from the phenomenon under investigation from those that engage the question under investigation from the perspective of the reflexive capacities of the psychologist as one among other human beings and/or members of a specific culture. Most obvious was the emergence – in the late nineteent...

  15. Public goods dilemma in asexual ant societies

    OpenAIRE

    Dobata, Shigeto; Tsuji, Kazuki

    2013-01-01

    This study reports experimental evidence for the “public goods dilemma” between cooperators and cheaters in an asexual ant society, in which cheating is always more rewarding for individuals but cooperation at the cost of individual fitness leads to better performance of groups. Although this dilemma provides the basic principle of social evolution, its experimental demonstration with underlying genetics and fitness evaluation for both cooperators and cheaters still lacks in societies other t...

  16. Ethical Dilemmas and Dimensions in Penetration Testing

    OpenAIRE

    Faily, Shamal; McAlaney, John; Iacob, C.

    2015-01-01

    Penetration testers are required to attack systems to evaluate their security, but without engaging in unethical behaviour while doing so. Despite work on hacker values and studies into security practice, there is little literature devoted to the ethical pressures associated with penetration testing. This paper presents several ethical dilemmas and dimensions associated with penetration testing;\\ud these shed light on the ethical positions taken by Penetration testers, and help identify poten...

  17. Empathy in One-Shot Prisoner Dilemma

    OpenAIRE

    Rossi, Giulia; Tcheukam, Alain; Tembine, Hamidou

    2017-01-01

    Strategic decision making involves affective and cognitive functions like reasoning, cognitive and emotional empathy which may be subject to age and gender differences. However, empathy-related changes in strategic decision-making and their relation to age, gender and neuropsychological functions have not been studied widely. In this article, we study a one-shot prisoner dilemma from a psychological game theory viewpoint. Forty seven participants (28 women and 19 men), aged 18 to 42 years, we...

  18. Moral Dilemmas and the Concept of Value in Engineering Ethics

    Science.gov (United States)

    Ohishi, Toshihiro

    The purpose of this paper is to show that the consideration of value is necessary to understand moral dilemmas in engineering ethics. First, the author shows that moral dilemmas are not fully understood in engineering ethics and argues that it is due to the lack of understanding of value. Second, the author considers the concept of value from the viewpoint of ‘desirability’ . Finally, three suggestions for improving engineering ethics in the understanding of moral dilemmas are made.

  19. Cooperation and control in multiplayer social dilemmas

    Science.gov (United States)

    Hilbe, Christian; Wu, Bin; Traulsen, Arne; Nowak, Martin A.

    2014-01-01

    Direct reciprocity and conditional cooperation are important mechanisms to prevent free riding in social dilemmas. However, in large groups, these mechanisms may become ineffective because they require single individuals to have a substantial influence on their peers. However, the recent discovery of zero-determinant strategies in the iterated prisoner’s dilemma suggests that we may have underestimated the degree of control that a single player can exert. Here, we develop a theory for zero-determinant strategies for iterated multiplayer social dilemmas, with any number of involved players. We distinguish several particularly interesting subclasses of strategies: fair strategies ensure that the own payoff matches the average payoff of the group; extortionate strategies allow a player to perform above average; and generous strategies let a player perform below average. We use this theory to describe strategies that sustain cooperation, including generalized variants of Tit-for-Tat and Win-Stay Lose-Shift. Moreover, we explore two models that show how individuals can further enhance their strategic options by coordinating their play with others. Our results highlight the importance of individual control and coordination to succeed in large groups. PMID:25349400

  20. An Analysis of Student Choices in Medical Ethical Dilemmas.

    Science.gov (United States)

    Woloshin, Phyllis Lerman

    This report describes a study undertaken to assess student choices in medical ethical dilemmas. Medical ethical dilemmas are interpreted to include problems such as abortion, euthanasia, sterilization, experimentation on humans, allocation of scarce medical resources, and physician and health personnel training. The major purpose of the study was…

  1. Dilemmas and Solutions for a Sustainable Green Transition

    DEFF Research Database (Denmark)

    Meyer, Niels I

    2015-01-01

    Mitigation of global warming and transitioning to a green and sustainable world are counteracted by a number of barriers and dilemmas. The paper analyses a number of these barriers and dilemmas in order to highlight efficient strategies and solutions for a sustainable development. Most governments...

  2. Moral judgment reloaded: a moral dilemma validation study

    Science.gov (United States)

    Christensen, Julia F.; Flexas, Albert; Calabrese, Margareta; Gut, Nadine K.; Gomila, Antoni

    2014-01-01

    We propose a revised set of moral dilemmas for studies on moral judgment. We selected a total of 46 moral dilemmas available in the literature and fine-tuned them in terms of four conceptual factors (Personal Force, Benefit Recipient, Evitability, and Intention) and methodological aspects of the dilemma formulation (word count, expression style, question formats) that have been shown to influence moral judgment. Second, we obtained normative codings of arousal and valence for each dilemma showing that emotional arousal in response to moral dilemmas depends crucially on the factors Personal Force, Benefit Recipient, and Intentionality. Third, we validated the dilemma set confirming that people's moral judgment is sensitive to all four conceptual factors, and to their interactions. Results are discussed in the context of this field of research, outlining also the relevance of our RT effects for the Dual Process account of moral judgment. Finally, we suggest tentative theoretical avenues for future testing, particularly stressing the importance of the factor Intentionality in moral judgment. Additionally, due to the importance of cross-cultural studies in the quest for universals in human moral cognition, we provide the new set dilemmas in six languages (English, French, German, Spanish, Catalan, and Danish). The norming values provided here refer to the Spanish dilemma set. PMID:25071621

  3. The theatre artist's dilemma in the task of rebranding Nigeria ...

    African Journals Online (AJOL)

    The theatre artist's dilemma in the task of rebranding Nigeria: Defining the modes of engagement. ... The project of re-branding Nigeria for positive development places the artist in a great dilemma seeing that the happenings in society form the content and subject matter of his/her work. Where the events in society are ...

  4. Moral Judgment Reloaded: A Moral Dilemma validation study

    Directory of Open Access Journals (Sweden)

    Julia F. Christensen

    2014-07-01

    Full Text Available We propose a revised set of moral dilemmas for studies on moral judgment. We selected a total of 46 moral dilemmas available in the literature and fine-tuned them in terms of four conceptual factors (Personal Force, Benefit Recipient, Evitability and Intention and methodological aspects of the dilemma formulation (word count, expression style, question formats that have been shown to influence moral judgment. Second, we obtained normative codings of arousal and valence for each dilemma showing that emotional arousal in response to moral dilemmas depends crucially on the factors Personal Force, Benefit Recipient, and Intentionality. Third, we validated the dilemma set confirming that people's moral judgment is sensitive to all four conceptual factors, and to their interactions. Results are discussed in the context of this field of research, outlining also the relevance of our RT effects for the Dual Process account of moral judgment. Finally, we suggest tentative theoretical avenues for future testing, particularly stressing the importance of the factor Intentionality in moral judgment. Additionally, due to the importance of cross-cultural studies in the quest for universals in human moral cognition, we provide the new set dilemmas in six languages (English, French, German, Spanish, Catalan and Danish. The norming values provided here refer to the Spanish dilemma set.

  5. Juan's Dilemma: A New Twist on the Old Lemon Battery

    Science.gov (United States)

    Hunt, Vanessa; Sorey, Timothy; Balandova, Evguenia; Palmquist, Bruce

    2010-01-01

    When life hands you lemons, make a battery! In this article, the authors describe an activity they refer to as "Juan's Dilemma," an extension of the familiar lemon-battery activity (Goodisman 2001). Juan's Dilemma integrates oxidation and reduction chemistry with circuit theory in a fun, real-world exercise. The authors designed this activity for…

  6. Ethical concerns and dilemmas of Finnish and Dutch health professionals

    NARCIS (Netherlands)

    Ilsa Lottes; Hanna Hopia; Mariël Kanne

    2016-01-01

    Abstract Background: Healthcare professionals encounter ethical dilemmas and concerns in their practice. More research is needed to understand these ethical problems and to know how to educate professionals to respond to them. Research objective: To describe ethical dilemmas and concerns at work

  7. Solving Ethical Dilemmas with Children: Empowering Classroom Research

    Science.gov (United States)

    Parr, Michelann

    2010-01-01

    This article identifies and discusses ethical dilemmas inherent when undertaking research with children or other vulnerable populations: power relations, risks and benefits, and informed consent and confidentiality (Maguire, 2005). Ethical dilemmas often arise when researchers attempt to merge the interests of their research and the interests of…

  8. Ethical Dilemmas as Perceived by Healthcare Students with Teaching Implications

    Science.gov (United States)

    Buelow, Janet R.; Mahan, Pamela L.; Garrity, April W.

    2010-01-01

    Ethical dilemmas are experienced by all individuals, but are especially prevalent among healthcare professionals. Universities and colleges preparing students to work and provide care in this arena are currently addressing this challenge through traditional ethics courses and lectures. However, student perspectives of the major ethical dilemmas in…

  9. School District Superintendents' Response to Ethical Dilemmas: A Grounded Theory

    Science.gov (United States)

    Sprouse, Fay Simpson

    2009-01-01

    Ethical dilemmas, situations involving a conflict between values or principles, often arise when employees of school districts violate laws or professional codes of behavior. Ethical dilemmas also occur when there are inequities in educational programming, resulting in missed opportunities for students. This qualitative study, conducted with the…

  10. School Restructuring and the Dilemmas of Principals' Work.

    Science.gov (United States)

    Wildy, Helen; Louden, William

    2000-01-01

    The complexity of principals' work may be characterized according to three dilemmas: accountability, autonomy, and efficiency. Narrative vignettes of 74 Australian principals revealed that principals were fair and inclusive. When faced with restructuring dilemmas, however, they favored strong over shared leadership, efficiency over collaboration,…

  11. Female Leadership Dilemmas in Primary Schools: A Case Study of ...

    African Journals Online (AJOL)

    Female Leadership Dilemmas in Primary Schools: A Case Study of Primary Schools in Harare Province in Zimbabwe. ... Zimbabwe Journal of Educational Research ... The study sought to explore dilemmas faced by female school leaders in primary schools in Kambuzuma, Warren Park and Kuwadzana areas of Harare ...

  12. A Paraconsistent Solution to the Problem of Moral Dilemmas | Bohse ...

    African Journals Online (AJOL)

    Moral dilemmas – situations in which an agent has a moral requirement to do each of two acts but cannot do both – seem to suggest some kind of inconsistency. I argue that the inconsistency felt intuitively is actually a logical inconsistency, and then go on to show that we can neither deny the existence of moral dilemmas ...

  13. Editorial: Dilemmas of Modern Economy and Business

    Directory of Open Access Journals (Sweden)

    Jelena Stankevičienė

    2016-02-01

    Full Text Available Various dilemmas concerning modern economy and business have been in the focus of scientific discussion in recent years (Klich, 2013; Renko & Knezevic, 2013; Szarucki, 2013; Agrawal & Gugnani, 2014; Pardhasaradhi & Grace, 2015. In modern economy, not only researches but corporations face complex economic and business dilemmas in their daily routine. The Joint Research Centre of the European Commission addresses key economic challenges by stimulating innovations, sustainability policies, social and environmental responsibilities. These challenges require the mobilization of significant resources by science, innovation and regional policy makers and scientific communities across Europe (EUA, 2014. Broader scientific discussions are crucial for the success of the Europe 2020 strategy for smart, sustainable and inclusive growth. According to the Global Risks Report 2015, the biggest threat to world stability in the next 10 years arise from the four most serious economic risks. These are high structural unemployment or underemployment, energy price shock, critical information infrastructure breakdown and fiscal crises. We continuously agree that innovation is critical to global prosperity (WEF, 2015. Currently, the internationalisation of family businesses is an increasingly important research area. Substantial numbers of FBs are forced to expand into foreign markets in order to survive and grow in the competitive environment (Daszkiewicz & Wach, 2014. The roles of business angels are especially important taken both decreasing the levels of formal venture capital investment and growing average amount of individual deals. Angel investors are the key players in generating high-growth companies, essential to regional economic development. As a result, they have attracted the attention of policy makers (Rostamzadeh et. al., 2014. Consequently, this issue of EBER concentrates on the current dilemmas of modern economy and business, particularly dealing

  14. Ethical dilemma and moral distress: proposed new NANDA diagnoses.

    Science.gov (United States)

    Kopala, Beverly; Burkhart, Lisa

    2005-01-01

    To propose two NANDA diagnoses--ethical dilemma and moral distress--and to distinguish between the NANDA diagnosis decisional conflict and the proposed nursing diagnosis of ethical dilemma. Journal articles, books, and focus group research findings. Moral/ethical situations exist in health care. Nurses' experiences of ethical dilemmas and moral distress are extrapolated to the types and categories of ethical dilemmas and moral distress that patients experience and are used as the basis for development of two new nursing diagnoses. The two proposed NANDA diagnoses fill a void in current standardized terminology. It is important that nurses have the ability to diagnose ethical or moral situations in health care. Currently, NANDA does not offer a means to document this important phenomenon. The creation of two sets of nursing diagnoses, ethical dilemma and moral distress, will enable nurses to recognize and track nursing care related to ethical or moral situations.

  15. Workplace distress and ethical dilemmas in neuroscience nursing.

    Science.gov (United States)

    Silén, Marit; Tang, Ping Fen; Wadensten, Barbro; Ahlström, Gerd

    2008-08-01

    This study concerns Swedish nurses' experiences of workplace stress and the occurrence of ethical dilemmas in a neurological setting. Qualitative interviews were conducted with 21 nurses. The interview results were subjected to qualitative latent content analysis and sorted into 4 content areas: workplace distress, ethical dilemmas, managing distress and ethical dilemmas, and quality of nursing. Common workplace stressors were high workload and lack of influence. These were perceived to have negative consequences for the quality of nursing. Ethical dilemmas mainly concerned decision making on initiation or withdrawal of treatment, which was experienced as a troublesome situation where conflicts could arise. The nurses managed the distress and ethical dilemmas by accepting and adjusting to the situation and seeking support from colleagues. They also endeavored to gain new strength in their private lives.

  16. Information Dilemmas and Blame-Avoidance Strategies

    DEFF Research Database (Denmark)

    Erik, Baekkeskov; Rubin, Olivier

    2017-01-01

    from day one about 2009 H1N1 flu. To explore why, this article links crisis information dilemmas to blame avoidance concepts from democratic political theories. We argue that greater Chinese transparency about infectious disease response reflects evolution in blame avoidance, from heavy reliance...... on information control to insulating leaders by using technical experts and agencies as 'lightning rods.' In 2003, the Chinese strategy of information containment and secrecy backfired, and the Chinese leadership eventually received blame at home and internationally for crisis mismanagement. In 2009, China put...... in place public health specialists and institutions as responsible for H1N1 information and responses, thereby insulating the top-tier leadership....

  17. Angiomatous nasal polyp: Clinical diagnostic dilemma

    Directory of Open Access Journals (Sweden)

    Sunder Goyal

    2015-03-01

    Full Text Available Angiomatous polyp (Angiectatic nasal polyps is rare and its incidence is 4-5% of all nasal polyps. As it occurs with variable clinical features and there is no confirmatory preoperative investigation, clinical diagnosis can be a dilemma. Clinical picture of angiofibroma, simple antrochoanal polyp and inverted papilloma may resemble with each other. As polyps invade surrounding bone, these should be distinguished from a malignant mass. We present an interesting case of an infarcted angiectatic nasal polyp with extensive surrounding bony destruction. Correct preoperative radiological diagnosis is important to avoid unnecessary extensive surgery. Histopathological evaluation of polyps is mandatory since they require different treatment due to difference in the prognosis.

  18. A diagnostic dilemma of cryptogenic organising pneumonia.

    Science.gov (United States)

    Gurung, K

    2012-01-01

    Cryptogenic Organising Pneumonia is a rare lung condition, which has incidence of 6-9 cases per 1,000,000 people with onset at age group between 50-60. The pathogenesis of this condition remains unknown. It mimics like pneumonia but has a good outcome with steroid treatment. Early recognition is very important and treatment with steroid therapy can save lives. This case highlights the unusual cause of shortness of breath due to COP and co existing incidental severe AS where we faced a diagnostic dilemma till lung biopsy was performed.

  19. Heroism as moral dilemma in nowadays nursing

    OpenAIRE

    Pukinskienė, Dalia

    2006-01-01

    Heroism is a moral concept with various dimensions. Heroes are determined according to one’s individual taste and that’s why they are very subjective. The title “hero” is the determination of the “High price” or value that is given to a person by people as an attempt to show their thankfulness and admiration for their great generosity. The thesis was designed as a two-part study. The overall aim of the thesis was to illuminate the phenomenon of heroism as moral dilemma in our-day nursing. Stu...

  20. Children's competency to consent: an ethical dilemma.

    Science.gov (United States)

    Spencer, G E

    2000-01-01

    The application of the best interests principle in current legislation creates an ethical dilemma in relation to children's consent to treatment. The guiding principle of the UN Convention on the Rights of the Child (1989) symbolises a formal expression of children's participation rights. Children's rights to consent to treatment are granted on socially determined ideals of competency. Children's participation in health care is increasingly advocated in legislation but many barriers remain. Nurses can facilitate children's participation through communicating information and creating partnerships with children.

  1. Integration of Standardized Management Systems: A Dilemma?

    Directory of Open Access Journals (Sweden)

    Manuel Ferreira Rebelo

    2015-06-01

    Full Text Available The growing proliferation of management systems standards (MSSs, and their individualized implementation, is a real problem faced by organizations. On the other hand, MSSs are aimed at improving efficiency and effectiveness of organizational responses in order to satisfy the requirements, needs and expectations of the stakeholders. Each organization has its own identity and this is an issue that cannot be neglected; hence, two possible approaches can be attended. First, continue with the implementation of individualized management systems (MSs; or, integrate the several MSSs versus related MSs into an integrated management system (IMS. Therefore, in this context, organizations are faced with a dilemma, as a result of the increasing proliferation and diversity of MSSs. This paper takes into account the knowledge gained through a case study conducted in the context of a Portuguese company and unveils some of the advantages and disadvantages of integration. A methodology is also proposed and presented to support organizations in developing and structuring the integration process of their individualized MSs, and consequently minimize problems that are generators of inefficiencies, value destruction and loss of competitiveness. The obtained results provide relevant information that can support Top Management decision in solving that dilemma and consequently promote a successful integration, including a better control of business risks associated to MSSs requirements and enhancing sustainable performance, considering the context in which organizations operate.

  2. q-Strategy spatial prisoner's dilemma game

    International Nuclear Information System (INIS)

    Li, Zhi-Hua; Fan, Hong-Yi; Xu, Wen-Long; Yang, Han-Xin

    2011-01-01

    We generalize the usual two-strategy prisoner's dilemma game to a multi-strategy game, in which the strategy variable s is allowed to take q different fractional values lying between 0 and 1. The fractional-valued strategies signify that individuals are not absolutely cooperative or defective, instead they can adopt intermediate strategies. Simulation results on 1D and 2D lattices show that, compared with the binary strategy game, the multi-strategy game can sustain cooperation in more stringent defective environments. We give a comprehensive analysis of the distributions of the survived strategies and we compare pairwise the relative strength and weakness of different strategies. It turns out that some intermediate strategies survive the pure defection because they can reduce being exploited and at the same time benefit from the spatial reciprocity effect. Our work may shed some light on the intermediate behaviors in human society. -- Highlights: → We propose a q-strategy prisoner's dilemma game with intermediate strategies. → The intermediate strategies characterize the extent of cooperation or defection. → We implement the model in a structured population. → The intermediate strategies can promote cooperation.

  3. Dilemmas for China: Energy, Economy and Environment

    Directory of Open Access Journals (Sweden)

    Xu Tang

    2015-05-01

    Full Text Available China’s current national policies promote high levels of economic growth, transforming China into a “world factory”, but at a high cost in terms of energy and the environment. At the same time, this growth and transformation also forms the backbone of China’s economy, underpinning social stability. China faces a dilemma to reconcile its economy, energy system and environmental security. Each aspect of this triad is discussed in this study to illuminate the challenges faced by China, and China’s dilemma in energy, economy and environment is analyzed from the perspective of its participation in current global supply chains. While China must import a significant proportion of its energy and a large proportion of primary materials, a large share of these imports are returned to the global market as industrial exports. China is bound by its own course of action and unable to radically change its position for the foreseeable future as the road to economic development and employment stability is through policies built on exports and shifting development models, presenting a tough socio-economic trade-off. China’s growth challenges are discussed as an example of challenges more broadly faced in the developing world. China’s success or failure in achieving a sustainable developmental pattern will inevitably have a significant influence on the global environment.

  4. The environmental dilemma of fossil fuels

    International Nuclear Information System (INIS)

    MacCracken, M.C.

    1992-04-01

    The increasing atmospheric concentration of carbon dioxide poses an environmental dilemma for fossil fuel energy generation that, unlike other related emissions, cannot be resolved by control technologies alone. Although fossil fuels presently provide the most cost-effective global energy source, and model projections suggest that their use is initiating climatic changes which, while quite uncertain, may induce significant, counter-balancing impacts to water resources, coastal resources, ecological systems, and possibly agricultural production. The climate model indicate that the warming should have begun, and there is some evidence for this occurring, but at a less rapid and more uneven rate than projected. In addition, different climate models are not yet in agreement in their latitudinal or regional predictions, and it will likely require a decade or more for such agreement to develop as high performance computers become available for addressing this ''grand challenge'' problem. Thus, in addition to the prospect for climatic change, the uncertainties of the changes and associated impacts contribute to the dilemma of dealing with the issue. Further, the problem is pervasive and international scope, with different countries and peoples having differing perspectives of technology, development, and environmental responsibility. Dealing with this issue will thus require creativity, commitment, and flexibility

  5. Best Friends’ Discussions of Social Dilemmas

    Science.gov (United States)

    McDonald, Kristina L.; Malti, Tina; Killen, Melanie; Rubin, Kenneth H.

    2013-01-01

    Peer relationships, particularly friendships, have been theorized to contribute to how children and adolescents think about social and moral issues. The current study examined how young adolescent best friends (191 dyads; 53.4% female) reason together about multifaceted social dilemmas and how their reasoning is related to friendship quality. Mutually-recognized friendship dyads were videotaped discussing dilemmas entailing moral, social-conventional and prudential/pragmatic issues. Both dyad members completed a self-report measure of friendship quality. Dyadic data analyses guided by the Actor-Partner Interdependence Model indicated that adolescent and friend's reports of friendship qualities were related to the forms of reasoning used during discussion. Friends who both reported that they could resolve conflicts in a constructive way were more likely to use moral reasoning than friends who reported that their conflict resolution was poor or disagreed on the quality of their conflict resolution. The findings provide evidence for the important role that friendship interaction may play in adolescents’ social and moral development. PMID:23666555

  6. Best friends' discussions of social dilemmas.

    Science.gov (United States)

    McDonald, Kristina L; Malti, Tina; Killen, Melanie; Rubin, Kenneth H

    2014-02-01

    Peer relationships, particularly friendships, have been theorized to contribute to how children and adolescents think about social and moral issues. The current study examined how young adolescent best friends (191 dyads; 53.4% female) reason together about multifaceted social dilemmas and how their reasoning is related to friendship quality. Mutually-recognized friendship dyads were videotaped discussing dilemmas entailing moral, social-conventional and prudential/pragmatic issues. Both dyad members completed a self-report measure of friendship quality. Dyadic data analyses guided by the Actor-Partner Interdependence Model indicated that adolescent and friend reports of friendship qualities were related to the forms of reasoning used during discussion. Friends who both reported that they could resolve conflicts in a constructive way were more likely to use moral reasoning than friends who reported that their conflict resolution was poor or disagreed on the quality of their conflict resolution. The findings provide evidence for the important role that friendship interaction may play in adolescents' social and moral development.

  7. Collective influence in evolutionary social dilemmas

    Science.gov (United States)

    Szolnoki, Attila; Perc, Matjaž

    2016-03-01

    When evolutionary games are contested in structured populations, the degree of each player in the network plays an important role. If they exist, hubs often determine the fate of the population in remarkable ways. Recent research based on optimal percolation in random networks has shown, however, that the degree is neither the sole nor the best predictor of influence in complex networks. Low-degree nodes may also be optimal influencers if they are hierarchically linked to hubs. Taking this into account leads to the formalism of collective influence in complex networks, which as we show here, has far-reaching implications for the favorable resolution of social dilemmas. In particular, there exists an optimal hierarchical depth for the determination of collective influence that we use to describe the potency of players for passing their strategies, which depends on the strength of the social dilemma. Interestingly, the degree, which corresponds to the baseline depth zero, is optimal only when the temptation to defect is small. Our research reveals that evolutionary success stories are related to spreading processes which are rooted in favorable hierarchical structures that extend beyond local neighborhoods.

  8. A reconceptualisation of Vygotsky’s ZPD into ZCD in teaching moral education in secondary schools using real-life dilemmas

    Directory of Open Access Journals (Sweden)

    Vishalache Balakrishnan

    2016-12-01

    Full Text Available In an effort to contribute to contemporary debates about alternative ways of teaching moral education, this qualitative study explored moral dilemmas identified by young adolescents and how they made moral choices to resolve the dilemmas. Data were gathered for textual analysis through a modified framework of participatory action research using participant observation, focus group transcripts, interviews and student journals. The data were interpreted using a revision of Vygotsky’s Zone of Proximal Development, extended to suit the multicultural Malaysian setting, and here called the Zone of Collaborative Development. Participants were 22 16–17-year-old non-Muslim adolescents from different cultural backgrounds attending three different types of secondary schools. Moral Education (ME in Malaysia (MEM is designed to cater to this group while Muslim students study Islamic Studies. Findings show that students were concerned about moral issues and values not covered in the current ME curriculum. The moral dilemmas identified were relational and context dependent. Students named autonomy, self and mutual respect, trust, freedom and tolerance as main conflicting themes in their real-life moral dilemmas. The study suggests that including students’ voices in MEM in this way might better engage students’ interest and connecting the subject with students’ everyday lives.

  9. Perceived Difficulty of Moral Dilemmas Depends on Their Causal Structure: A Formal Model and Preliminary Results

    DEFF Research Database (Denmark)

    Kuhnert, Barbara; Lindner, Felix; Bentzen, Martin Mose

    We introduce causal agency models as a modeling technique for representing and reasoning about ethical dilemmas. We find that ethical dilemmas, although they look similar on the surface, have very different causal structures. Based on their structural properties, as identified by the causal agency...... models, we cluster a set of dilemmas in Type 1 and Type 2 dilemmas. We observe that for Type 2 dilemmas but not for Type 1 dilemmas a utilitarian action dominates the possibility of refraining from action. Hence, we hypothesize, based on the model, that Type 2 dilemmas are perceived as less difficult...

  10. Sound Zones

    DEFF Research Database (Denmark)

    Møller, Martin Bo; Olsen, Martin

    2017-01-01

    Sound zones, i.e. spatially confined regions of individual audio content, can be created by appropriate filtering of the desired audio signals reproduced by an array of loudspeakers. The challenge of designing filters for sound zones is twofold: First, the filtered responses should generate...... an acoustic separation between the control regions. Secondly, the pre- and post-ringing as well as spectral deterioration introduced by the filters should be minimized. The tradeoff between acoustic separation and filter ringing is the focus of this paper. A weighted L2-norm penalty is introduced in the sound...

  11. Novel ethical dilemmas arising in geriatric clinical practice.

    Science.gov (United States)

    Calleja-Sordo, Elisa Constanza; de Hoyos, Adalberto; Méndez-Jiménez, Jorge; Altamirano-Bustamante, Nelly F; Islas-Andrade, Sergio; Valderrama, Alejandro; García-Peña, Carmen; Altamirano-Bustamante, Myriam M

    2015-05-01

    The purpose of this study is to determine empirically the state of the art of the medical care, when healthcare personal is confronted with ethical dilemmas related with the care they give to the geriatric population. An observational, longitudinal, prospective and qualitative study was conducted by analyzing the correlation between healthcare personnel-patient relationship, and ethical judgments regarding dilemmas that arise in daily clinical practice with geriatric patients. Mexican healthcare personnel with current active practices were asked to write up an ethical dilemma that arose frequently or that had impacted their medical practice. From the narrative input, we were able to draw up a database with 421 dilemmas, and those corresponding to patients 60 years and older were selected (n = 54, 12.8 %). The axiological analysis of the narrative dilemmas of geriatric patients was made using dialectical empiricism. The axiological analysis values found most frequently were classified into three groups: the impact of healthcare, the roles of the physician, and refusal of therapy; the healthcare role of educator, caring for the patients' life and the risk of imminent death where the values found more often. The persistence and universality of certain dilemmas in geriatrics calls for awareness and requires a good training in the ethical discernment of these dilemmas. This would help to improve substantially the care and the life quality of this population.

  12. Ethical dilemmas experienced by clinical psychology trainee therapists.

    Science.gov (United States)

    Bhola, Poornima; Sinha, Ananya; Sonkar, Suruchi; Raguram, Ahalya

    2015-01-01

    Ethical dilemmas are inevitable during psychotherapeutic interactions, and these complexities and challenges may be magnified during the training phase. The experience of ethical dilemmas in the arena of therapy and the methods of resolving these dilemmas were examined among 35 clinical psychologists in training, through an anonymous and confidential online survey. The trainees' responses to four open-ended questions on any one ethical dilemma encountered during therapy were analysed, using thematic content analysis. The results highlighted that the salient ethical dilemmas related to confidentiality and boundary issues. The trainees also raised ethical questions regarding therapist competence, the beneficence and non-maleficence of therapeutic actions, and client autonomy. Fifty-seven per cent of the trainees reported that the dilemmas were resolved adequately, the prominent methods of resolution being supervision or consultation and guidance from professional ethical guidelines. The trainees felt that the professional codes had certain limitations as far as the effective resolution of ethical dilemmas was concerned. The findings indicate the need to strengthen training and supervision methodologies and professional ethics codes for psychotherapists and counsellors in India.

  13. Male Mating Signaling in Social Dilemma Games

    DEFF Research Database (Denmark)

    Jensen, Niels Holm

    2013-01-01

    According to sexual selection theory and costly signaling theory, men benefit from signaling costly mate qualities to attractive women. To date, several studies have investigated whether men use conspicuous altruism to attract women, but the findings are mixed. This study investigated whether men...... being observed by an attractive woman engage in competitive economic altruism in three social dilemma games — the Dictator Game, Trust Game (2nd mover), and Public Goods Game — in comparison to men being observed by a non-attractive woman. Results showed that altruistic contributions in the games were...... not significantly larger in the attractive observer group than in the non-attractive observer group. Exploratory analyses did reveal, however, that amongst participants with an attractive observer only, dispositional generosity had a strongly positive effect on altruism while dispositional dominance had a negative...

  14. Negotiate way out of siting dilemmas

    International Nuclear Information System (INIS)

    Leroy, D.H.; Nadler, T.S.

    1993-01-01

    Can America negotiate itself out of its high-level radioactive waste dilemma by finding communities willing to volunteer as host sites? The authors think such a possibility exists. In fact, they see little other way to successfully locate controversial facilities in the future. A decide-announce-defend strategy only sparks community anger, solidifies opposition, and leads to expensive court battles without achieving results. The Office of Nuclear Waste Negotiator was established by the Nuclear Waste Policy Act to negotiate with states an Indian tribes about hosting a permanent nuclear waste repository and an interim Monitored Retrievable Storage (MRS) facility. Twenty communities and Indian tribes submitted applications for grants to study the possibility of hosting an MRS facility. Whether or not one of these potential hosts decides to make a commitment, the efficacy of negotiation has been demonstrated. Neither courtroom procedures nor administrative flats have engendered similar success

  15. Private and public decisions in social dilemmas

    DEFF Research Database (Denmark)

    Houser, Daniel; Montinari, Natalia; Piovesan, Marco

    2012-01-01

    impulse for several minutes in order to benefit others. In Public Condition children make decisions in public view of the group of other participants, while in Private Condition they have the possibility to decide privately. We find that children aged 9 and higher are better able to resist selfish......Are selfish impulses less likely to be pursued when decisions are publicly observable? Is the presence of peers a potential solution to social dilemmas? In this paper we report data on the self-control decisions of children aged 6 to 11 who participated in games that require one to resist a selfish...... impulses in public environments. Younger children, however, display no such effect. Further, we find self-control substantially impacted by group size. When decisions are public, self-control is better in larger groups, while in private condition the opposite holds....

  16. Optimizing the aging, retirement, and pensions dilemma

    CERN Document Server

    Bertocchi, Marida; Ziemba, William T.

    2010-01-01

    A straightforward guide focused on life cycle investing-namely aging, retirement, and pensions Life cycle investing and the implications of aging, retirement, and pensions continues to grow in importance. With people living longer, the relative and absolute number of retirees is growing while the number of workers contributing to pension funds is declining. This reliable resource develops a detailed economic analysis-at the micro (individual) and macro (economy wide) levels-which addresses issues regarding the economics of an aging population. Topics touched upon include retirement and the associated health care funding of the aged as well as social security and the asset classes that are considered asset-liability choices over time. The probability of achieving adequate return patterns from various investment strategies and asset classes is reviewed Shares rich insights on the aging, retirement, and pensions dilemma An assessment of the resources the real economy will be able to commit to non-workers is prov...

  17. Papers on the nuclear regulatory dilemma

    International Nuclear Information System (INIS)

    Barkenbus, J.N.; Freeman, S.D.; Weinberg, A.M.

    1985-10-01

    The four papers contained in this report are titled: (1) From Prescriptive to Performance-Based Regulation of Nuclear Power; (2) Nuclear Regulatory Reform: A Technology-Forcing Approach; (3) Improving the Regulation of Nuclear Power; and (4) Science and Its Limits: The Regulators' Dilemma. These four papers investigate issues relating to the long-term regulation of nuclear energy. They were prepared as part of the Institute for Energy Analysis' project on Nuclear Regulation funded by a grant from the Mellon Foundation and a smaller grant by the MacArthur Foundation. Originally this work was to be supplemented by contributions from the Nuclear Regulatory Commission and from the Department of Energy. These contributions were not forthcoming, and as a result the scope of our investigations was more restricted than we had originally planned

  18. Papers on the nuclear regulatory dilemma

    Energy Technology Data Exchange (ETDEWEB)

    Barkenbus, J.N.; Freeman, S.D.; Weinberg, A.M.

    1985-10-01

    The four papers contained in this report are titled: (1) From Prescriptive to Performance-Based Regulation of Nuclear Power; (2) Nuclear Regulatory Reform: A Technology-Forcing Approach; (3) Improving the Regulation of Nuclear Power; and (4) Science and Its Limits: The Regulators' Dilemma. These four papers investigate issues relating to the long-term regulation of nuclear energy. They were prepared as part of the Institute for Energy Analysis' project on Nuclear Regulation funded by a grant from the Mellon Foundation and a smaller grant by the MacArthur Foundation. Originally this work was to be supplemented by contributions from the Nuclear Regulatory Commission and from the Department of Energy. These contributions were not forthcoming, and as a result the scope of our investigations was more restricted than we had originally planned.

  19. The Global Development Race and Samaritan's Dilemma

    DEFF Research Database (Denmark)

    Svendsen, Gert Tinggaard; Svendsen, Gunnar Lind Haase

    2008-01-01

    Why has ‘development aid' been donated by so-called developed to under-developed populations since the Second World War? Using discourse analysis, this article provides partial answers to this riddle. First, we suggest that donor motives may be rooted in an ideology of ‘being good', which......, paradoxically, motivates recipients to be helpless - that is, a Samaritan's dilemma. Second, drawing on journal articles published in 1960-70, we test this theory by tracing a global development discourse and ‘goodness ideology' in a Western country such as Denmark - a process that was strongly influenced...... by the agricultural co-operative movement, which sought to export the ‘Danish co-operative model'....

  20. Mexico's energy dilemmas in an interdependent world

    International Nuclear Information System (INIS)

    Bauer, M.

    2008-01-01

    Mexico's energy system is overwhelmingly dependent on hydrocarbons. Although a significant producer of oil and gas, and a considerable exporter of crude oil, it is increasingly dependent on imports of oil products and natural gas for its internal energy demand. In a World where free trade is increasing the interdependence of the industrialized economies, Mexico's energy policy dilemma is basically between maintaining as much as possible its self sufficiency; or relying on imports, while generating oil revenues through exports to invest in developing a diversified economy. Energy demand projections to 2030 are carried out that exhibit the limitations of present available oil and gas proved reserves under past policies. Alternative energy policy scenarios are then examined. (authors)

  1. Going beyond the "inside-outside" dilemma?

    Directory of Open Access Journals (Sweden)

    Joan Subirats Humet

    2015-04-01

    Full Text Available This article addresses a classic dilemma of social movements: whether to "enter" political institutions in order to gain a position of power and change reality in the desired direction, or just stay "outside". In Spain today, after more than seven years of crisis, and with a clear understanding of what “a change of era” means, the emergence of other political parties raises this issue from new points of view.  It is not a question of substituting the elite, worn out as a result of their collusion with economic powers and corruption, with a new one that will regenerate the same system. It is a question of assaulting the institutions from the public sphere and recovering them for the common good.  There is no guarantee that this process will succeed, or it will finally dissolve into nothing. But the size of the challenge remains.

  2. Reexamination of the Abraham-Minkowski dilemma

    Science.gov (United States)

    Silveirinha, Mário G.

    2017-09-01

    Here the Abraham-Minkowski controversy on the correct definition of the light momentum in a macroscopic medium is revisited with the purpose to highlight that an effective medium formalism necessarily restricts the available information on the internal state of a system, and that this is ultimately the reason why the dilemma has no universal solution. Despite these difficulties, it is demonstrated that in the limit of no material absorption and under steady-state conditions, the time-averaged light (kinetic) momentum may be unambiguously determined by the Abraham result, both for bodies at rest and for circulatory flows of matter. The implications of these findings are discussed in the context of quantum optics of moving media, and we examine in detail the fundamental role of the Minkowski momentum in such a context.

  3. Multicultural Challenges - new gender equality dilemmas

    DEFF Research Database (Denmark)

    Siim, Birte

    In my research have been interested in exploring tensions between diversity and gender equality from a theoretical and comparative approach, looking at the Nordic welfare, citizenship and gender regimes from a cross-national European perspective. In this key-note presentation I draw on results...... and inspiration from a number of comparative research projects and networks. In the following I address three issues that have been central in academic debates: 1) The challenges from multiculturalism to gender equality, 2) gendering citizenship and migration and 3) Nordic feminist debates about diversity....... In the last section I argue that one solution to the new gender equality dilemma posed by increased diversity among women is a simultaneous re-framing of multiculturalism and gender equality....

  4. Physiotherapy devices able to generate ethical dilemmas

    Directory of Open Access Journals (Sweden)

    Roman Nadinne

    2017-01-01

    Full Text Available Physical therapy is a medical specialty where the professionals help restore movement and function when someone is affected by injury, illness or disability. This paper wishes to establish the connection between ethics, physiotherapy and bioengineering. The research method was achieved using academic database searches based on specific keywords. A SWOT analysis of the physiotherapy devices utilization and design was made, for extracting ethical considerations. The main results suggest that physiotherapy devices are able to generate ethical dilemmas, classified in 4 main items: (1 Bioengineering in physical therapy, ethical and clinical standards for manufacturers; (2 Social impact of physical therapy devices and ethical issues; (3 Inter-professional lack of communication and ethical concerns; (4 Bioengineering ethical research and education. As conclusions, for the physical therapy or electrotherapy research equipment development, a multidisciplinary team is needed. The equipment used in rehabilitation must fulfil specific technical and scientific requirements drafted by the professionals.

  5. Violence and gender new proposals, old dilemmas

    Directory of Open Access Journals (Sweden)

    Guita Grin Debert

    2008-01-01

    Full Text Available This paper discusses and analyzes the dilemmas involved in the use of notions that have been employed to qualify violence within social relationships marked by gender and their current developments in different instances of the justice system. Based on ethnographic studies conducted at the Women's Police Stations and Special Criminal Courts and the controversies surrounding the Maria da Penha Law, the meanings carried by expressions such as violence against women, marital violence, domestic violence, family violence and gender violence are mapped herein. The central argument is that the transformation of violence into crime leads to semantic and institutional developments that tend to replace the interest in politicizing Justice in the defense of women with the judicialization of family relations.

  6. The Productivity Dilemma in Workplace Health Promotion.

    Science.gov (United States)

    Cherniack, Martin

    2015-01-01

    Worksite-based programs to improve workforce health and well-being (Workplace Health Promotion (WHP)) have been advanced as conduits for improved worker productivity and decreased health care costs. There has been a countervailing health economics contention that return on investment (ROI) does not merit preventive health investment. METHODS/PROCEDURES: Pertinent studies were reviewed and results reconsidered. A simple economic model is presented based on conventional and alternate assumptions used in cost benefit analysis (CBA), such as discounting and negative value. The issues are presented in the format of 3 conceptual dilemmas. In some occupations such as nursing, the utility of patient survival and staff health is undervalued. WHP may miss important components of work related health risk. Altering assumptions on discounting and eliminating the drag of negative value radically change the CBA value. Simple monetization of a work life and calculation of return on workforce health investment as a simple alternate opportunity involve highly selective interpretations of productivity and utility.

  7. Rocky Mountain spotted fever: a clinician's dilemma.

    Science.gov (United States)

    Masters, Edwin J; Olson, Gary S; Weiner, Scott J; Paddock, Christopher D

    2003-04-14

    Rocky Mountain spotted fever is still the most lethal tick-vectored illness in the United States. We examine the dilemmas facing the clinician who is evaluating the patient with possible Rocky Mountain spotted fever, with particular attention to the following 8 pitfalls in diagnosis and treatment: (1) waiting for a petechial rash to develop before diagnosis; (2) misdiagnosing as gastroenteritis; (3) discounting a diagnosis when there is no history of a tick bite; (4) using an inappropriate geographic exclusion; (5) using an inappropriate seasonal exclusion; (6) failing to treat on clinical suspicion; (7) failing to elicit an appropriate history; and (8) failing to treat with doxycycline. Early diagnosis and proper treatment save lives.

  8. Coastal zone

    International Nuclear Information System (INIS)

    2002-01-01

    The report entitled Climate Change Impacts and Adaptation : A Canadian Perspective, presents a summary of research regarding the impacts of climate change on key sectors over the past five years as it relates to Canada. This chapter on the coastal zone focuses on the impact of climate change on Canada's marine and Great Lakes coasts with tips on how to deal with the impacts associated with climate change in sensitive environments. This report is aimed at the sectors that will be most affected by adaptation decisions in the coastal zone, including fisheries, tourism, transportation and water resources. The impact of climate change in the coastal zone may include changes in water levels, wave patterns, storm surges, and thickness of seasonal ice cover. The Intergovernmental Panel on Climate Change projects global average sea level will rise between 9 and 88 centimetres between 1990 to 2100, but not all areas of Canada will experience the same rate of future sea level change. The main physical impact would be shoreline change that could result in a range of biophysical and socio-economic impacts, some beneficial, some negative. The report focuses on issues related to infrastructure and communities in coastal regions. It is noted that appropriate human adaptation will play a vital role in reducing the extent of potential impacts by decreasing the vulnerability of average zone to climate change. The 3 main trends in coastal adaptation include: (1) increase in soft protection, retreat and accommodation, (2) reliance on technology such as geographic information systems to manage information, and (3) awareness of the need for coastal adaptation that is appropriate for local conditions. 61 refs., 7 figs

  9. Resolving Ethical Dilemmas: Exploring the Role of Moral Principles

    National Research Council Canada - National Science Library

    Blais, Ann-Renee; Thompsom, Megan

    2008-01-01

    We sought to answer two questions via this exploratory study. First, we investigated whether or not individual differences in moral principle selection/preference existed in response to six moral dilemmas...

  10. Religion and the Military: A Growing Ethical Dilemma

    National Research Council Canada - National Science Library

    Greenslit, Lawrence P

    2006-01-01

    Ethical dilemmas over the issue of freedom of personal religious expression and fair treatment for all faith groups are creating conflicts within the military, both inside and outside the chaplaincies...

  11. Ethical dilemma and resolution:a case scenario.

    Science.gov (United States)

    Wells, Joseph K

    2007-01-01

    This article illustrates an ethical dilemma that I faced while treating an 86-year-old woman at her home. The ethical dilemma was caused due to several factors such as the expectations of the client (client/consumer rights), organisational expectations (employer, governmental and payer-source regulations) and my own personal values (one's moral philosophies, perceived social responsibilities, sense of professional duty) and how they all interact with each other. The case is a classic example of a seemingly simple yet frequent dilemma encountered by occupational and physical therapists in the United States serving clients who are covered by Medicare (the government's health insurance) for home health. The article is aimed at highlighting the various ethical principles involved in clinical decision-making, and it suggests methods for resolution of ethical dilemmas. Although the article is based against the backdrop of the US health care system, students and health care practitioners globally can relate to it.

  12. Resolving Ethical Dilemmas: Exploring the Role of Moral Principles

    National Research Council Canada - National Science Library

    Blais, Ann-Renee; Thompsom, Megan

    2008-01-01

    .... As part of a larger study on moral decision making, 64 participants read and reflected upon six ethical dilemmas, rated the extent to which 5 moral principles influenced their decisions regarding...

  13. The evolutionary spatial prisoner's dilemma on a cycle

    African Journals Online (AJOL)

    We finally determine analytically (i.e. without using simulation) the probability ... Having insufficient evidence for convicting the prisoners on a major charge, the ...... tionary prisoner's dilemma on a path, Discrete Applied Mathematics, 160, pp.

  14. The Gunfighter's Dilemma: Multiple Adversary Deterrence and Coercion

    National Research Council Canada - National Science Library

    Palmer, Jess

    2000-01-01

    .... Those faced with this dilemma have included the Romans, Byzantines, and the British Empire. Studying these nations in their struggle to maintain control revealed tactics and techniques that proved effective...

  15. Mental Health Dilemmas in the Age of an Ecological Crisis

    Science.gov (United States)

    Whittaker, James K.

    1974-01-01

    The professional helping person faces multiple dilemmas today that challenge his own value system. Article presented some of the particular problems and pitfalls confronted by the professional helper. (Author/RK)

  16. Domestic Workers and Career Women: The Dilemma of Family ...

    African Journals Online (AJOL)

    Domestic Workers and Career Women: The Dilemma of Family Stability. ... Sociological research on paid domestic work has increased substantially in ... This paper sets out therefore to answer the following questions: who benefits in the long ...

  17. 13Development dilemmas: The methods and political ethics of ...

    African Journals Online (AJOL)

    These dilemmas are at the heart of the book under review: Development ... economics and ethics; part two delves into special problems and applications; and part three ... in rising consumption levels and improved standards of living. The free ...

  18. The Dilemmas of Adopting Performance Related Pay as a Reward ...

    African Journals Online (AJOL)

    The Dilemmas of Adopting Performance Related Pay as a Reward Strategy for ... over automatic pay increase (formal and transparent reward systems linked to ... of reward and compensation, and low level of motivation and performance.

  19. THE THEATRE ARTIST'S DILEMMA IN THE TASK OF ...

    African Journals Online (AJOL)

    imitch

    dilemma and make effectual his contributions to re-branding society for meaning development to occur, especially in this .... The Nigerian movie industry provides template for furthering this discourse. .... A Handbook on Drama and Theatre.

  20. The dilemma of over and under nutrition coexistence among ...

    African Journals Online (AJOL)

    The dilemma of over and under nutrition coexistence among western Kenya children. ... that might have existed in this target group, particularly the school age children. ... It is also known that childhood obesity and/or overweight have positive ...

  1. Motivations to Resolve Communication Dilemmas in Database-Mediated Collaboration

    National Research Council Canada - National Science Library

    Kalman, Michael E; Monge, Peter; Fulk, Janet; Heino, Rebecca

    2002-01-01

    ... it. This article develops and tests an expectancy model that predicts specific conditions under which collective benefits can be made to converge with private ones, thus resolving communication dilemmas...

  2. Kultuurimperialisme as 'n hermeneutiese dilemma: Eerste-wereldse ...

    African Journals Online (AJOL)

    World perspectives on Jesus as the Son of God In this essay the hermeneutical dilemma of cultural imperialism in the engagement of First-World theology with Third-World theology is addressed by means of a hermeneutics of conversation.

  3. Discipline, dilemmas, decisions and data distribution in the planning ...

    African Journals Online (AJOL)

    Discipline, dilemmas, decisions and data distribution in the planning and ... Emphasis is placed on the value of a heterogeneous article structure and a ... Keywords: access structure, data distribution, frame structure, fre-quency of use, ...

  4. Ethical Dilemmas Experienced by Psychological Counsellors Working at Different Institutions and Their Attitudes and Behaviours as a Response to These Dilemmas

    Science.gov (United States)

    Kolay Akfert, Serpil

    2012-01-01

    The purpose of this study is to determine the ethical dilemmas experiencing by the counsellors who work at different conditions and what they do to solve these dilemmas as well as the obstacles they have to deal with while resolving the dilemmas. This is a qualitative study in which multi-state pattern was used. For this research, 40 counsellors…

  5. Nurses' contributions to the resolution of ethical dilemmas in practice.

    Science.gov (United States)

    Barlow, Nichola Ann; Hargreaves, Janet; Gillibrand, Warren P

    2018-03-01

    Complex and expensive treatment options have increased the frequency and emphasis of ethical decision-making in healthcare. In order to meet these challenges effectively, we need to identify how nurses contribute the resolution of these dilemmas. To identify the values, beliefs and contextual influences that inform decision-making. To identify the contribution made by nurses in achieving the resolution of ethical dilemmas in practice. An interpretive exploratory study was undertaken, 11 registered acute care nurses working in a district general hospital in England were interviewed, using semi-structured interviews. In-depth content analysis of the data was undertaken via NVivo coding and thematic identification. Participants and context: Participants were interviewed about their contribution to the resolution of ethical dilemmas within the context of working in an acute hospital ward. Participants were recruited from all settings working with patients of any age and any diagnosis. Ethical considerations: Ethical approval was obtained from the local National Research Ethics Committee. Four major themes emerged: 'best for the patient', 'accountability', 'collaboration and conflict' and 'concern for others'. Moral distress was also evident in the literature and findings, with moral dissonance recognised and articulated by more experienced nurses. The relatively small, single-site sample may not account for the effects of organisational culture on the results; the findings suggested that professional relationships were key to resolving ethical dilemmas. Nurses use their moral reasoning based on their beliefs and values when faced with ethical dilemmas. Subsequent actions are mediated though ethical decision-making frames of reference including deontology, consequentialism, the ethics of care and virtue ethics. Nurses use these in contributing to the resolution of these dilemmas. Nurses require the skills to develop and maintain professional relationships for addressing

  6. Phenomenology of School Leaders' Experiences of Ethical Dilemmas

    OpenAIRE

    Guy, Timothy Michael

    2016-01-01

    This research study explores the intersection of school leadership and ethics. This study used the hermeneutic phenomenological approach described by Max Van Manen (1990, 2014) to explore the question: How do school leaders experience ethical dilemmas in their role as school leaders? Hermeneutic phenomenology seeks to find the meaning of a phenomenon, which in this case is the experience of an ethical dilemma. Hermeneutic refers to the interpretive-reflective-analytical component and phenom...

  7. Ethical concerns and dilemmas of Finnish and Dutch health professionals.

    Science.gov (United States)

    Hopia, Hanna; Lottes, Ilsa; Kanne, Mariël

    2016-09-01

    Healthcare professionals encounter ethical dilemmas and concerns in their practice. More research is needed to understand these ethical problems and to know how to educate professionals to respond to them. To describe ethical dilemmas and concerns at work from the perspectives of Finnish and Dutch healthcare professionals studying at the master's level. Exploratory, qualitative study that used the text of student online discussions of ethical dilemmas at work as data. Participants' online discussions were analyzed using inductive content analysis. The sample consisted of 49 students at master's level enrolled in professional ethics courses at universities in Finland and the Netherlands. Permission for conducting the study was granted from both universities of applied sciences. All students provided their informed consent for the use of their assignments as research data. Participants described 51 problematic work situations. Among these, 16 were found to be ethical dilemmas, and the remaining were work issues with an ethical concern and did not meet criteria of a dilemma. The most common problems resulted from concerns about quality care, safety of healthcare professionals, patients' rights, and working with too few staff and inadequate resources. The results indicated that participants were concerned about providing quality of care and raised numerous questions about how to provide it in challenging situations. The results show that it was difficult for students to differentiate ethical dilemmas from other ethical work concerns. Online discussions among healthcare providers give them an opportunity to relate ethical principles to real ethical dilemmas and problems in their work as well as to critically analyze ethical issues. We found that discussions with descriptions of ethical dilemmas and concerns by health professionals provide important information and recommendations not only for education and practice but also for health policy. © The Author(s) 2015.

  8. Exploring Educational Dilemmas Using the System Dynamics and Archetypes

    OpenAIRE

    Krstev, Dejan; Krstev, Aleksandar; Minovski, Robert; Krstev, Boris

    2017-01-01

    This article describes how the systems archetype ‘Drifting Goals’ can be used in the classroom to explore ethical dilemmas. Systems archetypes are systems thinking tool that provide a framework that shifts the focus from seeing ethical dilemmas as stemming from the acts of individuals to a focus on the systemic interrelationships and interactions within the organization. The use of the ‘Drifting Goals’ archetype provides a pedagogical approach that exposes students to innovative ways of think...

  9. Evolution of Strategies for "Prisoner's Dilemma" using Genetic Algorithm

    OpenAIRE

    Heinz, Jan

    2010-01-01

    The subject of this thesis is the software application "Prisoner's Dilemma". The program creates a population of players of "Prisoner's Dilemma", has them play against each other, and - based on their results - performs an evolution of their strategies by means of a genetic algorithm (selection, mutation, and crossover). The program was written in Microsoft Visual Studio, in the C++ programming language, and its interface makes use of the .NET Framework. The thesis includes examples of strate...

  10. Business Ethics versus Economic Incentives: Contemporary Issues and Dilemmas

    OpenAIRE

    Kulshreshtha Pravin

    2003-01-01

    This paper is based on my experience with teaching a course on ethical dilemmas faced by individuals, managers and businesses in contemporary societies. Modern economic thinking generally presumes that individuals and businesses in a society follow their own self-interest, or private economic incentives. The course highlighted the importance of ethical considerations for action that are based on consideration of others rather than ones own. Four significant ethical dilemmas of modern societie...

  11. Roman Catholic beliefs produce characteristic neural responses to moral dilemmas.

    Science.gov (United States)

    Christensen, Julia F; Flexas, Albert; de Miguel, Pedro; Cela-Conde, Camilo J; Munar, Enric

    2014-02-01

    This study provides exploratory evidence about how behavioral and neural responses to standard moral dilemmas are influenced by religious belief. Eleven Catholics and 13 Atheists (all female) judged 48 moral dilemmas. Differential neural activity between the two groups was found in precuneus and in prefrontal, frontal and temporal regions. Furthermore, a double dissociation showed that Catholics recruited different areas for deontological (precuneus; temporoparietal junction) and utilitarian moral judgments [dorsolateral prefrontal cortex (DLPFC); temporal poles], whereas Atheists did not (superior parietal gyrus for both types of judgment). Finally, we tested how both groups responded to personal and impersonal moral dilemmas: Catholics showed enhanced activity in DLPFC and posterior cingulate cortex during utilitarian moral judgments to impersonal moral dilemmas and enhanced responses in anterior cingulate cortex and superior temporal sulcus during deontological moral judgments to personal moral dilemmas. Our results indicate that moral judgment can be influenced by an acquired set of norms and conventions transmitted through religious indoctrination and practice. Catholic individuals may hold enhanced awareness of the incommensurability between two unequivocal doctrines of the Catholic belief set, triggered explicitly in a moral dilemma: help and care in all circumstances-but thou shalt not kill.

  12. Success and Failure of Parliamentary Motions: A Social Dilemma Approach.

    Science.gov (United States)

    Popping, Roel; Wittek, Rafael

    2015-01-01

    Parliamentary motions are a vital and frequently used element of political control in democratic regimes. Despite their high incidence and potential impact on the political fate of a government and its policies, we know relatively little about the conditions under which parliamentary motions are likely to be accepted or rejected. Current collective decision-making models use a voting power framework in which power and influence of the involved parties are the main predictors. We propose an alternative, social dilemma approach, according to which a motion's likelihood to be accepted depends on the severity of the social dilemma underlying the decision issue. Actor- and dilemma-centered hypotheses are developed and tested with data from a stratified random sample of 822 motions that have been voted upon in the Dutch Parliament between September 2009 and February 2011. The social dilemma structure of each motion is extracted through content coding, applying a cognitive mapping technique developed by Anthony, Heckathorn and Maser. Logistic regression analyses are in line with both, actor-centered and social-dilemma centered approaches, though the latter show stronger effect sizes. Motions have a lower chance to be accepted if voting potential is low, the proposer is not from the voting party, and if the problem underlying the motion reflects a prisoner's dilemma or a pure competition game as compared to a coordination game. The number of proposing parties or a battle of the sexes structure does not significantly affect the outcome.

  13. Adolescent Concepts of Responsibility in Different Typesof Moral Dilemmas

    Directory of Open Access Journals (Sweden)

    Molchanov S.V.

    2017-12-01

    Full Text Available The paper presents results of an empirical study of adolescents' concepts of responsibility in different types of moral dilemmas characterized by violations of moral norms. The study proved that the type of moral dilemma and the context of interaction of its participants determine the adolescents' readiness to recognize the responsibility of the main character of the dilemma for violating the norm. In dilemmas of asocial type adolescents are more willing to recognize the responsibility of the offender whose behavior leads to obvious damage for one of the participants in the interaction. As for prosocial dilemmas and dilemmas of confronting norms, adolescents tend to deny the responsibility of the offender. The paper provides a comparative analysis of empirically identified types of adolescent concepts of responsibility, including the differentiated responsibility with egoistic orientation, high responsibility, low responsibility and ‘polar’ responsibility. The authors highlight the ambiguity of the relationship between adolescents’ evaluation of behavior, their readiness to recognize responsibility in moral transgression, and their judgment about the necessity of punishment. The paper concludes with the discussion concerning the relationship between the level of development of moral judgments/moral reasoning and the concepts of responsibility in adolescents.

  14. Framing Effect in the Trolley Problem and Footbridge Dilemma.

    Science.gov (United States)

    Cao, Fei; Zhang, Jiaxi; Song, Lei; Wang, Shoupeng; Miao, Danmin; Peng, Jiaxi

    2017-02-01

    The present study investigated the effect of dilemma type, framing, and number of saved lives on moral decision making. A total of 591 undergraduates, with a mean age of 20.56 (SD = 1.37) were randomly assigned to 12 groups on the basis of a grid of two dilemma types (the trolley problem or the footbridge dilemma) by three frames (positive, neutral, or negative frame) by two different numbers of workers (5 or 15 people). The main effects of dilemma type, frame, and number of saved workers were all significant. The interaction of dilemma type and number of saved workers and the interaction of the three independent factors were significant. Results indicated that moral judgment is affected by framing. Specifically, people were more inclined to utilitarianism in the positive or neutral frame and more inclined to intuitionism in the negative frame. Furthermore, this effect can be moderated by dilemma type and number of saved lives. Implications of our results are discussed.

  15. Issues and dilemmas in preparation and implementation of the spatial plan of the municipality

    Directory of Open Access Journals (Sweden)

    Maksin Marija

    2012-01-01

    Full Text Available Disadvantages of the Serbian planning system and dilemmas about the role of spatial planning in Serbia mainly is reflected at the local level of spatial planning. The focus of the spatial plan of the municipality from the strategic to regulatory role has been shifted by the changes of legal basis. In this paper the key issues and dilemmas in the practice of preparation and implementation of the spatial plan of the municipality in Serbia are pointed out. The review of the three key issues of importance for the direct implementation of planning solutions and concepts: identification of the construction zone, the establishment of rules for the protection, arrangement and construction of physical (natural, landscape and functional entities and settlements, and elaboration of arrangement scheme for the settlement are presented. It has still not made clear what the arrangement scheme for the settlement should represent, so that in practice there is wide variety of schemes, usually completely unenforceable. Good examples of arrangement schemes elaboration within spatial plan of the municipality have been presented and analyzed. Suggestions for improving the content of the strategic and regulatory elements of the spatial plan of the municipality, as well as recommendations to the basic content of the arrangement scheme for settlement as a part of this spatial plan are proposed.

  16. The dilemma of euthanasia: Evaluation of nurses’ attitudes against this dilemma

    OpenAIRE

    Hlias Kolovos; Minas Kakampouras; Ioannis Liakopoulos; Ioanna Christopoulou

    2010-01-01

    The progress of science didn’t only have as a result to cure most illnesses, but also to find methods to maintain life in human beings. But who decides about life or death? How much has this dilemma been a great concern of the Greek nursing profession?Purpose: The aim of this research is to investigate the attitudes of Greek nurses towards the decisions of euthanasia and specifically towards energetic and passive euthanasia and assisted suicide.Material – Method: The data for the research wer...

  17. Forgiver triumphs in alternating Prisoner's Dilemma.

    Directory of Open Access Journals (Sweden)

    Benjamin M Zagorsky

    Full Text Available Cooperative behavior, where one individual incurs a cost to help another, is a wide spread phenomenon. Here we study direct reciprocity in the context of the alternating Prisoner's Dilemma. We consider all strategies that can be implemented by one and two-state automata. We calculate the payoff matrix of all pairwise encounters in the presence of noise. We explore deterministic selection dynamics with and without mutation. Using different error rates and payoff values, we observe convergence to a small number of distinct equilibria. Two of them are uncooperative strict Nash equilibria representing always-defect (ALLD and Grim. The third equilibrium is mixed and represents a cooperative alliance of several strategies, dominated by a strategy which we call Forgiver. Forgiver cooperates whenever the opponent has cooperated; it defects once when the opponent has defected, but subsequently Forgiver attempts to re-establish cooperation even if the opponent has defected again. Forgiver is not an evolutionarily stable strategy, but the alliance, which it rules, is asymptotically stable. For a wide range of parameter values the most commonly observed outcome is convergence to the mixed equilibrium, dominated by Forgiver. Our results show that although forgiving might incur a short-term loss it can lead to a long-term gain. Forgiveness facilitates stable cooperation in the presence of exploitation and noise.

  18. Imperfect twinning: a clinical and ethical dilemma.

    Science.gov (United States)

    Denardin, Daniela; Telles, Jorge Alberto B; Betat, Rosilene da Silveira; Fell, Paulo Renato K; Cunha, André Campos da; Targa, Luciano Vieira; Zen, Paulo Ricardo G; Rosa, Rafael Fabiano M

    2013-09-01

    OBJECTIVE To review the history, epidemiology, etiology, gestational aspects, diagnosis and prognosis of imperfect twinning. DATA SOURCES Scientific articles were searched in PubMed, SciELO and Lilacs databases, using the descriptors "conjoined twins", "multiple pregnancy", "ultrasound", "magnetic resonance imaging" and "prognosis". The research was not delimited to a specific period of time and was supplemented with bibliographic data from books. The description of conjoined twins is legendary. The estimated frequency is 1/45,000-200,000 births. These twins are monozygotic, monochorionic and usually monoamniotic. They can be classified by the most prominent fusion site, by the symmetry between the conjoined twins or by the sharing structure. The diagnosis can be performed in the prenatal period or after birth by different techniques, such as ultrasound, magnetic resonance imaging and echocardiography. These tests are of paramount importance for understanding the anatomy of both fetuses/children, as well as for prognosis and surgical plan determination. CONCLUSIONS Although imperfect twinning is a rare condition, the prenatal diagnosis is very important in order to evaluate the fusion site and its complexity. Hence, the evaluation of these children should be multidisciplinary, involving mainly obstetricians, pediatricians and pediatric surgeons. However, some decisions may constitute real ethical dilemmas, in which different points should be discussed and analyzed with the health team and the family.

  19. Ethical and legal dilemmas in infertility treatment

    Directory of Open Access Journals (Sweden)

    Dragojević-Dikić Svetlana

    2004-01-01

    Full Text Available One of the main characteristics of the new millennium is the affirmation of human rights in all aspects of human existence, with the intention of turning declarative statements into reality. Development of up-to-date assisted reproductive technologies (ART and their application in infertility treatment have raised numerous ethical, legal, religious, social and other questions. In vitro fertilization, donation of gametes, embryos and pre-embryos, cryopreservation of gametes, embryos, ovarian and testicular tissues, embryo transfer, genetic reproductive techniques, cloning and other sophisticated methods used in infertility treatment require cooperation between the medical and legal professions. Ethical aspects of human reproduction and assisted fertilization are based on full respect of the life of an individual even before conception, from pre-embryo stage, via embryo stage and fetus stage to a newborn infant. Regarding investigative and clinical projects, this standpoint implies the legalization of all ART procedures, unencumbered exchange of information and consensus about their application, and adherence to the basic ethical principles of autonomy benefit, justice and common welfare. Ethical postulates provide unequivocal directions in the creation of new life and resolve all possible ethical dilemmas, protecting the rights of doctors and participant in relevant procedures alike and reasserting the crucial principle - respect of human dignity.

  20. Quantum prisoners' dilemma under enhanced interrogation

    Science.gov (United States)

    Siopsis, George; Balu, Radhakrishnan; Solmeyer, Neal

    2018-06-01

    In the quantum version of prisoners' dilemma, each prisoner is equipped with a single qubit that the interrogator can entangle. We enlarge the available Hilbert space by introducing a third qubit that the interrogator can entangle with the other two. We discuss an enhanced interrogation technique based on tripartite entanglement and analyze Nash equilibria. We show that for tripartite entanglement approaching a W-state, we calculate the Nash equilibria numerically and show that they coincide with the Pareto-optimal choice where both prisoners cooperate. Upon continuous variation between a W-state and a pure bipartite entangled state, the game is shown to have a surprisingly rich structure. The role of bipartite and tripartite entanglement is explored to explain that structure. As an application, we consider an evolutionary game based on our quantum game with a network of agents on a square lattice with periodic boundary conditions and show that the strategy corresponding to Nash equilibrium completely dominates without placing any restrictions on the initial set of strategies.

  1. Evolutionary stability in the asymmetric volunteer's dilemma.

    Directory of Open Access Journals (Sweden)

    Jun-Zhou He

    Full Text Available It is often assumed that in public goods games, contributors are either strong or weak players and each individual has an equal probability of exhibiting cooperation. It is difficult to explain why the public good is produced by strong individuals in some cooperation systems, and by weak individuals in others. Viewing the asymmetric volunteer's dilemma game as an evolutionary game, we find that whether the strong or the weak players produce the public good depends on the initial condition (i.e., phenotype or initial strategy of individuals. These different evolutionarily stable strategies (ESS associated with different initial conditions, can be interpreted as the production modes of public goods of different cooperation systems. A further analysis revealed that the strong player adopts a pure strategy but mixed strategies for the weak players to produce the public good, and that the probability of volunteering by weak players decreases with increasing group size or decreasing cost-benefit ratio. Our model shows that the defection probability of a "strong" player is greater than the "weak" players in the model of Diekmann (1993. This contradicts Selten's (1980 model that public goods can only be produced by a strong player, is not an evolutionarily stable strategy, and will therefore disappear over evolutionary time. Our public good model with ESS has thus extended previous interpretations that the public good can only be produced by strong players in an asymmetric game.

  2. The CAIR vacatur. A Dilemma for States

    Energy Technology Data Exchange (ETDEWEB)

    Amy Royden-Bloom [National Association of Clean Air Agencies (NACAA) (United States)

    2008-12-15

    The vacatur of the Clean Air Interstate Rule (CAIR) creates a dilemma for the many states that were relying on CAIR for reductions in emissions of nitrogen oxides (NOx) and sulfur dioxide (SO{sub 2}) from power plants. NOx is an ozone (O{sub 3}) precursor, NOx and SO{sub 2} are precursors to fine particulate matter (PM2.5) and PM2.5 impairs visibility, contributing to regional haze. Thus, reductions in these emissions are important to achieving the 8-hr O{sub 3} and PM2.5 National Ambient Air Quality Standards (NAAQS) and for improving visibility. With the vacatur of CAIR, the reductions States counted on in the near-term (2009-2011) are in jeopardy. Ultimately, Congress will hopefully enact stringent multipollutant legislation targeting EGUs. However, in the meantime, to protect public health from deadly air pollution, states will need to step in to fill the gap and act quickly to restrict air pollutant emissions from EGUs. 1 ref.

  3. Solve the Dilemma of Over-Simplification

    Science.gov (United States)

    Schmitt, Gerhard

    Complexity science can help to understand the functioning and the interaction of the components of a city. In 1965, Christopher Alexander gave in his book A city is not a tree a description of the complex nature of urban organization. At this time, neither high-speed computers nor urban big data existed. Today, Luis Bettencourt et al. use complexity science to analyze data for countries, regions, or cities. The results can be used globally in other cities. Objectives of complexity science with regard to future cities are the observation and identification of tendencies and regularities in behavioral patterns, and to find correlations between them and spatial configurations. Complex urban systems cannot be understood in total yet. But research focuses on describing the system by finding some simple, preferably general and emerging patterns and rules that can be used for urban planning. It is important that the influencing factors are not just geo-spatial patterns but also consider variables which are important for the design quality. Complexity science is a way to solve the dilemma of oversimplification of insights from existing cities and their applications to new cities. An example: The effects of streets, public places and city structures on citizens and their behavior depend on how they are perceived. To describe this perception, it is not sufficient to consider only particular characteristics of the urban environment. Different aspects play a role and influence each other. Complexity science could take this fact into consideration and handle the non-linearity of the system...

  4. Complex dilemmas of identity and practice

    Science.gov (United States)

    Enyedy, Noel; Goldberg, Jennifer; Muir Welsh, Kate

    2006-01-01

    Identity is a complex construct, yet extremely important if we wish to understand the practice of teaching as a profession. In this paper, we examine the ways two middle school teachers talk about their identity and teaching practices and coordinate these self-reports with our own observations of how they implement a new environmental science curriculum. More specifically, we compare the teachers' beliefs about learning, goals for the classroom community and for instruction, and their knowledge of science content, and pedagogy. Furthermore, we discuss teaching dilemmas, which arise for these teachers as their identities and practices intersect and at times conflict. We argue, however, that a focus on practice and outcomes is an important, but limited aspect of what we, as a field, need to consider when attempting to understand the complexities of teaching and learning. Therefore, we continue to expand our understanding of two science classrooms as we examine the teachers' multiple identities in relation to their implementation of a science curriculum. The identity portraits from this study provide a rich and complicated account of the implementation of a science curriculum and illuminate a number of potential obstacles and pitfalls, which may inform the way we as a field reflect on curriculum and professional development.

  5. The dilemma of the golden age

    Science.gov (United States)

    Press, Frank

    These are confused and troubling times for science and the scientific community. Limits on resources have made visible serious differences within our community, differences that may weaken the nation's scientific enterprise if they are not resolved without acrimony.We face the dilemma of living in both the best and worst of times. In all fields of science, the journals and professional meetings are filled with exciting and challenging reports of new discoveries, new ideas, new applications. At the same time, President Reagan's proposed budget for 1989 is the strongest budget in support of science and technology in recent history. Yet that budget is in difficulty with an essentially proscience Congress, and it has divided the scientific community. The United States supports more scientific research than Western Europe and Japan combined, and our system of universities and national and industrial laboratories is the envy of the world. Why then is our community in an unprecedented state of stress and internal dissension? That is the issue I want to confront. That is the issue that we as an academy must confront.

  6. The Productivity Dilemma in Workplace Health Promotion

    Directory of Open Access Journals (Sweden)

    Martin Cherniack

    2015-01-01

    Full Text Available Background. Worksite-based programs to improve workforce health and well-being (Workplace Health Promotion (WHP have been advanced as conduits for improved worker productivity and decreased health care costs. There has been a countervailing health economics contention that return on investment (ROI does not merit preventive health investment. Methods/Procedures. Pertinent studies were reviewed and results reconsidered. A simple economic model is presented based on conventional and alternate assumptions used in cost benefit analysis (CBA, such as discounting and negative value. The issues are presented in the format of 3 conceptual dilemmas. Principal Findings. In some occupations such as nursing, the utility of patient survival and staff health is undervalued. WHP may miss important components of work related health risk. Altering assumptions on discounting and eliminating the drag of negative value radically change the CBA value. Significance. Simple monetization of a work life and calculation of return on workforce health investment as a simple alternate opportunity involve highly selective interpretations of productivity and utility.

  7. Exploring how IBCLCs manage ethical dilemmas: a qualitative study

    Science.gov (United States)

    2012-01-01

    Background Professional health care practice should be based on ethical decisions and actions. When there are competing ethical standards or principles, one must choose between two or more competing options. This study explores ethical dilemmas experienced by International Board Certified Lactation Consultants. Methods The investigator interviewed seven International Board Certified Lactation Consultants and analyzed the interviews using qualitative research methods. Results "Staying Mother-Centred" emerged as the overall theme. It encompassed six categories that emerged as steps in managing ethical dilemmas: 1) recognizing the dilemma; 2) identifying context; 3) determining choices; 4) strategies used; 5) results and choices the mother made; and 6) follow-up. The category, "Strategies used", was further analyzed and six sub-themes emerged: building trust; diffusing situations; empowering mothers; finding balance; providing information; and setting priorities. Conclusions This study provides a framework for understanding how International Board Certified Lactation Consultants manage ethical dilemmas. Although the details of their stories changed, the essence of the experience remained quite constant with the participants making choices and acting to support the mothers. The framework could be the used for further research or to develop tools to support IBCLCs as they manage ethical dilemmas and to strengthen the profession with a firm ethics foundation. PMID:22824376

  8. Exploring how IBCLCs manage ethical dilemmas: a qualitative study

    Directory of Open Access Journals (Sweden)

    Noel-Weiss Joy

    2012-07-01

    Full Text Available Abstract Background Professional health care practice should be based on ethical decisions and actions. When there are competing ethical standards or principles, one must choose between two or more competing options. This study explores ethical dilemmas experienced by International Board Certified Lactation Consultants. Methods The investigator interviewed seven International Board Certified Lactation Consultants and analyzed the interviews using qualitative research methods. Results "Staying Mother-Centred" emerged as the overall theme. It encompassed six categories that emerged as steps in managing ethical dilemmas: 1 recognizing the dilemma; 2 identifying context; 3 determining choices; 4 strategies used; 5 results and choices the mother made; and 6 follow-up. The category, "Strategies used", was further analyzed and six sub-themes emerged: building trust; diffusing situations; empowering mothers; finding balance; providing information; and setting priorities. Conclusions This study provides a framework for understanding how International Board Certified Lactation Consultants manage ethical dilemmas. Although the details of their stories changed, the essence of the experience remained quite constant with the participants making choices and acting to support the mothers. The framework could be the used for further research or to develop tools to support IBCLCs as they manage ethical dilemmas and to strengthen the profession with a firm ethics foundation.

  9. Evidence for a Creative Dilemma Posed by Repeated Collaborations.

    Directory of Open Access Journals (Sweden)

    Hiroyasu Inoue

    Full Text Available We focused on how repeat collaborations in projects for inventions affect performance. Repeat collaborations have two contradictory aspects. A positive aspect is team development or experience, and a negative aspect is team degeneration or decline. Since both contradicting phenomena are observed, inventors have a dilemma as to whether they should keep collaborating in a team or not. The dilemma has not previously been quantitatively analyzed. We provide quantitative and extensive analyses of the dilemma in creative projects by using patent data from Japan and the United States. We confirm three predictions to quantitatively validate the existence of the dilemma. The first prediction is that the greater the patent a team achieves, the longer the team will work together. The second prediction is that the impact of consecutive patents decreases after a team makes a remarkable invention, which is measured by the impact of patents. The third prediction is that the expectation of impact with new teams is greater than that with the same teams successful in the past. We find these predictions are validated in patents published in Japan and the United States. On the basis of these three predictions, we can quantitatively validate the dilemma in creative projects. We also propose preventive strategies for degeneration. One is developing technological diversity, and another is developing inventor diversity in teams. We find the two strategies are both effective by validating with the data.

  10. Indirect reciprocity in three types of social dilemmas.

    Science.gov (United States)

    Nakamura, Mitsuhiro; Ohtsuki, Hisashi

    2014-08-21

    Indirect reciprocity is a key mechanism for the evolution of human cooperation. Previous studies explored indirect reciprocity in the so-called donation game, a special class of Prisoner's Dilemma (PD) with unilateral decision making. A more general class of social dilemmas includes Snowdrift (SG), Stag Hunt (SH), and PD games, where two players perform actions simultaneously. In these simultaneous-move games, moral assessments need to be more complex; for example, how should we evaluate defection against an ill-reputed, but now cooperative, player? We examined indirect reciprocity in the three social dilemmas and identified twelve successful social norms for moral assessments. These successful norms have different principles in different dilemmas for suppressing cheaters. To suppress defectors, any defection against good players is prohibited in SG and PD, whereas defection against good players may be allowed in SH. To suppress unconditional cooperators, who help anyone and thereby indirectly contribute to jeopardizing indirect reciprocity, we found two mechanisms: indiscrimination between actions toward bad players (feasible in SG and PD) or punishment for cooperation with bad players (effective in any social dilemma). Moreover, we discovered that social norms that unfairly favor reciprocators enhance robustness of cooperation in SH, whereby reciprocators never lose their good reputation. Copyright © 2014 Elsevier Ltd. All rights reserved.

  11. Environmental dilemmas revisited: structural consequences from the angle of institutional ergonomics

    OpenAIRE

    Beckenkamp, Martin

    2009-01-01

    The structure of a social dilemma lies behind many environmental problems. Mingling temporal aspects of resources with the structure of the social dilemma often leads to wrong conclusions. Therefore, it is worth analytically separating temporal aspects from structural aspects of the dilemma. This article concentrates solely on the structural aspects of the dilemma and the grades of complexity with respect to the number and stakes of the people involved, as well as the asymmetry of endowments ...

  12. Not 'Just the two of us' : Third party externalities of social dilemmas

    NARCIS (Netherlands)

    van der Iest, Hanne; Dijkstra, J.; Stokman, F.N.

    Many real-life social dilemmas contain third parties who cannot make decisions in the dilemma, but are affected by its outcome (receive externalities) nonetheless. Dilemmas with identical payoffs for decision-making actors may greatly vary in their externalities for third parties. If actors value

  13. Primary breast tuberculosis: diagnostic and therapeutic dilemmas.

    Science.gov (United States)

    Hiremath, Bharati V; Subramaniam, Narayana

    2015-01-01

    To review the diagnostic and therapeutic challenges associated with treating isolated primary breast tuberculosis through discussion of our series of seven cases. Although breast is an uncommon site of occurrence of tuberculosis and isolated primary breast tuberculosis is an even rarer entity, its importance lies in distinguishing it from more common pathologies like abscesses or malignancy and avoiding unnecessary erroneous surgical intervention. The spectrum and presentation is wide and varied and we present our experience in managing seven such cases. A retrospective analysis of all the cases of histopathologically proven primary breast tuberculosis in the last three years at M.S. Ramaiah Hospital (2012-2014) was done. Analysis was in terms of mode of presentation, clinical features, diagnostic modalities used for evaluation and confirmation of the diagnosis, medical treatment and surgical intervention, if any. Special emphasis was placed on dilemmas in diagnosis and difficulties encountered during treatment. All cases were followed up till cure. Patients most commonly presented with a breast abscess, painful breast lumps and recurrent abscesses. Other foci of tuberculosis were ruled out in all of these patients. Majority were treated exclusively with anti-tubercular therapy (although regimens varied), but those with abscesses underwent incision and drainage. All cases were treated and followed up till cure. The challenges associated with primary breast tuberculosis are multiple, including which anti-tubercular therapy regimen to use, when to surgically intervene (as the breast is a cosmetically important area) and treating atypical mycobacteria. We provide a detailed discussion of the challenges we faced and review of literature.

  14. Public health medicine: the constant dilemma.

    Science.gov (United States)

    Eskin, Frada

    2002-03-01

    There is a well-known quotation by the nineteenth-century sociologist Virchow (quoted in Ref. 1) that aptly captures the dilemma that has confronted public health medicine since the specialty was created as a discrete entity in 1848. Virchow said: 'Medicine is politics and social medicine is politics writ large!' What does this mean in relation to effective public health medicine practice and how is it likely to affect its future? There is increasingly limited freedom of expression within the current context of political correctness, central control and a rapidly burgeoning litigious climate. The purpose of this paper is to explore these issues and to propose a means of maintaining public health medicine integrity within a working environment where action is becoming rapidly constrained by political rigidity. An additional factor to be included in the dialogue is the current context within which public health physicians work. Because the majority of public health doctors are employed within the National Health Service (NHS), they are finding themselves being expected to take on tasks and responsibilities marginal to their essential purpose and function. For example, public health physicians spend a great deal of time involved in detailed deliberations about health service provision. Although there is a great deal of evidence to show that good quality health care provision positively affects the health of the individual, there is no evidence to show that this activity has any effect on the population's health status. The essence of public health medicine practice is the prevention of ill-health and the promotion of the health of the population and, consequently, attention needs to be focused on the root causes of disease. However, as these are outside the aegis of the NHS, public health medicine involvement in such issues as education, nutrition, housing, transport and poverty is regarded as marginal to the NHS corporate agenda.

  15. Evolution of Cooperation in Social Dilemmas on Complex Networks

    Science.gov (United States)

    Iyer, Swami; Killingback, Timothy

    2016-01-01

    Cooperation in social dilemmas is essential for the functioning of systems at multiple levels of complexity, from the simplest biological organisms to the most sophisticated human societies. Cooperation, although widespread, is fundamentally challenging to explain evolutionarily, since natural selection typically favors selfish behavior which is not socially optimal. Here we study the evolution of cooperation in three exemplars of key social dilemmas, representing the prisoner’s dilemma, hawk-dove and coordination classes of games, in structured populations defined by complex networks. Using individual-based simulations of the games on model and empirical networks, we give a detailed comparative study of the effects of the structural properties of a network, such as its average degree, variance in degree distribution, clustering coefficient, and assortativity coefficient, on the promotion of cooperative behavior in all three classes of games. PMID:26928428

  16. The neural bases of framing effects in social dilemmas

    DEFF Research Database (Denmark)

    Macoveanu, Julian; Ramsøy, Thomas; Skov, Martin

    intraparietal cortex, and temporopolar cortex. Our findings provide the first insight into the mechanisms underlying framing of behavior in social dilemmas, indicating increased engagement of the hippocampus and neocortical areas involved in memory, social reasoning and mentalizing when subjects make decisions......Human behavior in social dilemmas is strongly framed by the social context, but the mechanisms underlying this framing effect remains poorly understood. To identify the behavioral and neural responses mediating framing of social interactions, subjects underwent functional Magnetic Resonance Imaging...... while playing a Prisoners Dilemma game. In separate neuroimaging sessions, the game was either framed as a cooperation game or a competition game. Social decisions where subjects were affected by the frame engaged the hippocampal formation, precuneus, dorsomedial prefrontal cortex and lateral temporal...

  17. The Neural Bases of Framing Effects in Social Dilemmas

    DEFF Research Database (Denmark)

    Macoveanu, Julian; Ramsøy, Thomas; Skov, Martin

    2015-01-01

    intraparietal cortex, and temporopolar cortex. Our findings provide the first insight into the mechanisms underlying framing of behavior in social dilemmas, indicating increased engagement of the hippocampus and neocortical areas involved in memory, social reasoning and mentalizing when subjects make decisions......Human behavior in social dilemmas is strongly framed by the social context, but the mechanisms underlying this framing effect remains poorly understood. To identify the behavioral and neural responses mediating framing of social interactions, subjects underwent functional Magnetic Resonance Imaging...... while playing a Prisoners Dilemma game. In separate neuroimaging sessions, the game was either framed as a cooperation game or a competition game. Social decisions where subjects were affected by the frame engaged the hippocampal formation, precuneus, dorsomedial prefrontal cortex and lateral temporal...

  18. The neural bases of framing effects in social dilemmas

    DEFF Research Database (Denmark)

    Macoveanu, Julian; Ramsøy, Thomas Z.; Skov, Martin

    2016-01-01

    findings provide the first insight into the mechanisms underlying framing of behavior in social dilemmas, indicating increased engagement of the hippocampus and neocortical areas involved in memory, social reasoning, and mentalizing when participants make decisions that conform to the imposed social frame.......Human behavior in social dilemmas is strongly framed by the social context, but the mechanisms underlying this framing effect remain poorly understood. To identify the behavioral and neural responses mediating framing of social interactions, participants underwent functional MRI while playing...... a prisoner’s dilemma game. In separate neuroimaging sessions, the game was either framed as a cooperation game or a competition game. The framing of social decisions engaged the hippocampal formation, precuneus, dorsomedial prefrontal cortex, and lateral temporal gyrus. Among these regions, the engagement...

  19. Liberal democracy and nuclear despotism: two ethical foreign policy dilemmas

    Directory of Open Access Journals (Sweden)

    Thomas E. Doyle

    2013-09-01

    Full Text Available This article advances a critical analysis of John Rawls's justification of liberal democratic nuclear deterrence in the post-Cold War era as found in The Law of Peoples. Rawls's justification overlooked how nuclear-armed liberal democracies are ensnared in two intransigent ethical dilemmas: one in which the mandate to secure liberal constitutionalism requires both the preservation and violation of important constitutional provisions in domestic affairs, and the other in which this same mandate requires both the preservation and violation of the liberal commitment to international legal arrangements and to the rule of law generally. On this view, the choice to violate constitutional provisions and international legal arrangements is evidence of nuclear despotism. Moreover, this choice does not imply that the ethical foreign policy dilemmas were resolved. Instead, it implies that the dilemmas force liberal democratic governments into implementing ethically paradoxical policy outcomes.

  20. Sharing as risk pooling in a social dilemma experiment

    Directory of Open Access Journals (Sweden)

    Todd L. Cherry

    2015-03-01

    Full Text Available In rural economies with missing or incomplete markets, idiosyncratic risk is frequently pooled through informal networks. Idiosyncratic shocks, however, are not limited to private goods but can also restrict an individual from partaking in or benefiting from a collective activity. In these situations, a group must decide whether to provide insurance to the affected member. We describe results of a laboratory experiment designed to test whether a simple sharing institution can sustain risk pooling in a social dilemma with idiosyncratic risk. We tested whether risk could be pooled without a commitment device and, separately, whether effective risk pooling induced greater cooperation in the social dilemma. We found that even in the absence of a commitment device or reputational considerations, subjects voluntarily pooled risk, thereby reducing variance in individual earnings. In spite of effective risk pooling, however, cooperation in the social dilemma was unaffected.

  1. Nurses' workplace distress and ethical dilemmas in Tanzanian health care.

    Science.gov (United States)

    Häggström, Elisabeth; Mbusa, Ester; Wadensten, Barbro

    2008-07-01

    The aim of this study was to describe Tanzanian nurses' meaning of and experiences with ethical dilemmas and workplace distress in different care settings. An open question guide was used and the study focused on the answers that 29 registered nurses supplied. The theme, ;Tanzanian registered nurses' invisible and visible expressions about existential conditions in care', emerged from several subthemes as: suffering from (1) workplace distress; (2) ethical dilemmas; (3) trying to maintaining good quality nursing care; (4) lack of respect, appreciation and influence; and (5) a heavy workload that did not prevent registered nurses from struggling for better care for their patients. The analysis shows that, on a daily basis, nurses find themselves working on the edge of life and death, while they have few opportunities for doing anything about this situation. Nurses need professional guidance to gain insight and be able to reflect on their situations, so that they do not become overloaded with ethical dilemmas and workplace distress.

  2. Do not resuscitate: reflections on an ethical dilemma.

    Science.gov (United States)

    Jones, Jeannie

    This is a reflective account of an ethical dilemma encountered while on placement on a cardiology ward. Reflection is a process which allows practitioners to reveal and expose thoughts, behaviours and feelings that are present at a particular time. All reflective models are based on the principle that purposeful reflection results in a better understanding and awareness, thus enhancing clinical practice (Driscoll and Teh 2001). The Gibbs' Reflective Cycle has been selected for its simplicity and ease of use to aid personal development. The dilemma was identified and analysed from a professional, ethical and legal perspective. Pseudonyms are used to maintain confidentiality and protect the identities of all parties involved.

  3. Parental preference or child well-being: an ethical dilemma.

    Science.gov (United States)

    Turner, Helen N

    2010-02-01

    An ethical dilemma that is not uncommon to encounter when caring for children occurs when parental preference does not appear to be in the child's best interest. Challenges facing the health care team are further amplified when the family's cultural background does not match that of the team. A case study will be used to illustrate the challenges of a pediatric palliative care ethical dilemma further complicated by cultural diversity. Review of the child's medical condition, patient/parent preferences, quality of life, and contextual features will be followed by an analysis and recommendations for resolution of this challenging situation. Copyright 2010 Elsevier Inc. All rights reserved.

  4. Core corporate governance dilemmas facing boards: a South African perspective

    Directory of Open Access Journals (Sweden)

    Hyram Serretta

    2011-08-01

    Full Text Available Directors and boards face many challenges in terms of managing complexity. A key factor of success in practicing good corporate governance is the board’s ability to cope with paradox. The purpose of this research has been to explore the core corporate governance dilemmas facing boards. The investigation was qualitative in nature using the Delphi technique. Six core corporate governance dilemmas facing board members were identified one of which is not mentioned in the international literature. The findings should provide directors with an ability to identify the nature of the paradoxes they need to respond to.

  5. An application of evolutionary game theory to social dilemmas: the traveler's dilemma and the minimum effort coordination game.

    Directory of Open Access Journals (Sweden)

    Swami Iyer

    Full Text Available The Traveler's Dilemma game and the Minimum Effort Coordination game are two social dilemmas that have attracted considerable attention due to the fact that the predictions of classical game theory are at odds with the results found when the games are studied experimentally. Moreover, a direct application of deterministic evolutionary game theory, as embodied in the replicator dynamics, to these games does not explain the observed behavior. In this work, we formulate natural variants of these two games as smoothed continuous-strategy games. We study the evolutionary dynamics of these continuous-strategy games, both analytically and through agent-based simulations, and show that the behavior predicted theoretically is in accord with that observed experimentally. Thus, these variants of the Traveler's Dilemma and the Minimum Effort Coordination games provide a simple resolution of the paradoxical behavior associated with the original games.

  6. An application of evolutionary game theory to social dilemmas: the traveler's dilemma and the minimum effort coordination game.

    Science.gov (United States)

    Iyer, Swami; Reyes, Joshua; Killingback, Timothy

    2014-01-01

    The Traveler's Dilemma game and the Minimum Effort Coordination game are two social dilemmas that have attracted considerable attention due to the fact that the predictions of classical game theory are at odds with the results found when the games are studied experimentally. Moreover, a direct application of deterministic evolutionary game theory, as embodied in the replicator dynamics, to these games does not explain the observed behavior. In this work, we formulate natural variants of these two games as smoothed continuous-strategy games. We study the evolutionary dynamics of these continuous-strategy games, both analytically and through agent-based simulations, and show that the behavior predicted theoretically is in accord with that observed experimentally. Thus, these variants of the Traveler's Dilemma and the Minimum Effort Coordination games provide a simple resolution of the paradoxical behavior associated with the original games.

  7. An Application of Evolutionary Game Theory to Social Dilemmas: The Traveler's Dilemma and the Minimum Effort Coordination Game

    Science.gov (United States)

    Iyer, Swami; Reyes, Joshua; Killingback, Timothy

    2014-01-01

    The Traveler's Dilemma game and the Minimum Effort Coordination game are two social dilemmas that have attracted considerable attention due to the fact that the predictions of classical game theory are at odds with the results found when the games are studied experimentally. Moreover, a direct application of deterministic evolutionary game theory, as embodied in the replicator dynamics, to these games does not explain the observed behavior. In this work, we formulate natural variants of these two games as smoothed continuous-strategy games. We study the evolutionary dynamics of these continuous-strategy games, both analytically and through agent-based simulations, and show that the behavior predicted theoretically is in accord with that observed experimentally. Thus, these variants of the Traveler's Dilemma and the Minimum Effort Coordination games provide a simple resolution of the paradoxical behavior associated with the original games. PMID:24709851

  8. Epiploic appendagitis of caecum: a diagnostic dilemma [Appendicitis epiploica des Blinddarms: ein diagnostisches Dilemma

    Directory of Open Access Journals (Sweden)

    Rashid, Arshad

    2012-10-01

    Full Text Available [english] Epiploic appendagitis is a rare cause of acute abdomen. Depending on the site of occurrence, it can mimic any cause of acute abdomen or disease of the colon and caecal appendix; making its preoperative diagnosis very difficult. We present here a case of a 7-year-old boy misdiagnosed preoperatively as acute appendicitis and later on, upon surgical exploration, found to have caecal appendagitis. The affected epiploic appendage was removed and the patient had an uneventful recovery. We also review the relevant literature and discuss the measures to overcome this diagnostic dilemma. General surgeons should be aware of this self-limiting disease and consider it as a differential diagnosis of acute abdomen.[german] Appendicitis epiploica oder epiploische Appendagitis ist eine seltene Ursache des akuten Abdomens. Je nach Ort des Auftretens kann sie jede Ursache für akuten Unterleibsschmerz oder Erkrankungen des Dickdarms und Appendix vermiformis imitieren, was ihre präoperative Diagnose sehr schwierig macht. Wir präsentieren hier den Fall eines alten Jungen, bei dem präoperativ akute Blinddarmentzündung diagnostiziert wurde. Beim chirurgischen Eingriff stellte sich dann eine Appendicitis epiploica des Blinddarms als Befund heraus. Der betroffene Appendix epiploica wurde entfernt und der Patient erholte sich ohne besondere Vorkommnisse. Wir geben auch eine Übersicht über die relevante Literatur und diskutieren die Maßnahmen, um dieses diagnostische Dilemma zu überwinden. Allgemeine Chirurgen sollten sich dieser selbstlimitierenden Krankheit bewusst sein und sie als eine Differentialdiagnose bei akutem Abdomen in Betracht ziehen.

  9. Zone separator for multiple zone vessels

    Science.gov (United States)

    Jones, John B.

    1983-02-01

    A solids-gas contact vessel, having two vertically disposed distinct reaction zones, includes a dynamic seal passing solids from an upper to a lower zone and maintaining a gas seal against the transfer of the separate treating gases from one zone to the other, and including a stream of sealing fluid at the seal.

  10. Elementary science education: Dilemmas facing preservice teachers

    Science.gov (United States)

    Sullivan, Sherry Elaine

    Prospective teachers are involved in a process of induction into a culture of teaching that has rules, or codes of conduct for engaging in teaching practice. This same culture of teaching exists within a larger culture of schooling that also has values and norms for behaviors, that over time have become institutionalized. Teacher educators are faced with the challenging task of preparing preservice teachers to resolve dilemmas that arise from conflicts between the pressure to adopt traditional teaching practices of schooling, or to adopt inquiry-based teaching practices from their university methods classes. One task for researchers in teacher education is to define with greater precision what factors within the culture of schooling hinder or facilitate implementation of inquiry-based methods of science teaching in schools. That task is the focus of this study. A qualitative study was undertaken using a naturalistic research paradigm introduced by Lincoln and Guba in 1985. Participant observation, interviews, discourse analysis of videotapes of lessons from the methods classroom and written artifacts produced by prospective teachers during the semester formed the basis of a grounded theory based on inductive analysis and emergent design. Unstructured interviews were used to negotiate outcomes with participants. Brief case reports of key participants were also written. This study identified three factors that facilitated or hindered the prospective teachers in this research success in implementing inquiry-based science teaching in their field placement classrooms: (a) the culture of teaching/teacher role-socialization, (b) the culture of schooling and its resistance to change, and (c) the culture of teacher education, especially in regards to grades and academic standing. Some recommendations for overcoming these persistent obstacles to best practice in elementary science teaching include: (a) preparing prospective teachers to understand and cope with change

  11. Surgical nurses' perceptions of ethical dilemmas, moral distress and quality of care.

    Science.gov (United States)

    DeKeyser Ganz, Freda; Berkovitz, Keren

    2012-07-01

    To describe surgical nurses' perceived levels of ethical dilemmas, moral distress and perceived quality of care and the associations among them. Nurses are committed to providing quality care. They can experience ethical dilemmas and moral distress while providing patient care. Little research has focused on the effect of moral distress or ethical dilemmas on perceived quality of care. Descriptive, cross-sectional study. After administration and institutional Research Ethics Committee approval, a researcher requested 119 surgical nurses working in two Israeli hospitals to fill out three questionnaires (personal background characteristics; Ethical Dilemmas in Nursing and Quality of Nursing Care). Data collection took place from August 2007 to January 2008. Participant mean age was 39·7 years. The sample consisted mostly of women, Jewish and married staff nurses. The majority of nurses reported low to moderate levels of ethical dilemma frequency but intermediate levels of ethical dilemma intensity. Frequency of ethical dilemmas was negatively correlated with level of nursing skill, meeting patient's needs and total quality of care. No important correlations were found between intensity of ethical dilemmas and quality of care. Levels of ethical dilemma frequency were higher than intensity. Nurses tended to be satisfied with their level of quality of care. Increased frequency of ethical dilemmas was associated with some aspects of perceived quality of care. Quality of care is related to ethical dilemmas and moral distress among surgical nurses. Therefore, efforts should be made to decrease the frequency of these feelings to improve the quality of patient care. © 2011 Blackwell Publishing Ltd.

  12. How Large Is the Role of Emotion in Judgments of Moral Dilemmas?

    Science.gov (United States)

    Horne, Zachary; Powell, Derek

    2016-01-01

    Moral dilemmas often pose dramatic and gut-wrenching emotional choices. It is now widely accepted that emotions are not simply experienced alongside people's judgments about moral dilemmas, but that our affective processes play a central role in determining those judgments. However, much of the evidence purporting to demonstrate the connection between people's emotional responses and their judgments about moral dilemmas has recently been called into question. In the present studies, we reexamined the role of emotion in people's judgments about moral dilemmas using a validated self-report measure of emotion. We measured participants' specific emotional responses to moral dilemmas and, although we found that moral dilemmas evoked strong emotional responses, we found that these responses were only weakly correlated with participants' moral judgments. We argue that the purportedly strong connection between emotion and judgments of moral dilemmas may have been overestimated.

  13. How Large Is the Role of Emotion in Judgments of Moral Dilemmas?

    Directory of Open Access Journals (Sweden)

    Zachary Horne

    Full Text Available Moral dilemmas often pose dramatic and gut-wrenching emotional choices. It is now widely accepted that emotions are not simply experienced alongside people's judgments about moral dilemmas, but that our affective processes play a central role in determining those judgments. However, much of the evidence purporting to demonstrate the connection between people's emotional responses and their judgments about moral dilemmas has recently been called into question. In the present studies, we reexamined the role of emotion in people's judgments about moral dilemmas using a validated self-report measure of emotion. We measured participants' specific emotional responses to moral dilemmas and, although we found that moral dilemmas evoked strong emotional responses, we found that these responses were only weakly correlated with participants' moral judgments. We argue that the purportedly strong connection between emotion and judgments of moral dilemmas may have been overestimated.

  14. The Dilemma of Islam as School Knowledge in Muslim Education

    Science.gov (United States)

    Thobani, Shiraz

    2007-01-01

    In the contemporary period, the persistence of the dual system of state and "madrasa" education in many Muslim countries has raised for policymakers the dilemma of what form Islam ought to assume as a pedagogic category in these contexts. At one extreme, in the syllabi of traditionalist "madrasas", we find Islam being deployed as an overarching…

  15. Giving Birth to Child or Idea: The Feminine Dilemma.

    Science.gov (United States)

    Phillips, Patricia; Rozendal, Fred

    1983-01-01

    Suggests that women today face a dilemma in creativity: that by choosing one form of creativity (family or direct production), the need for a career will be left unsatisfied. If she chooses both, she feels guilt at doing an inadequate job with either form of creativity. (JAC)

  16. Reconciling the Rigor-Relevance Dilemma in Intellectual Capital Research

    Science.gov (United States)

    Andriessen, Daniel

    2004-01-01

    This paper raises the issue of research methodology for intellectual capital and other types of management research by focusing on the dilemma of rigour versus relevance. The more traditional explanatory approach to research often leads to rigorous results that are not of much help to solve practical problems. This paper describes an alternative…

  17. Radical versus Social Constructivism: Dilemma, Dialogue, and Defense

    Science.gov (United States)

    Belbase, Shashidhar

    2011-01-01

    This paper aims to discuss epistemological and philosophical foundation of meaningful learning and teaching mathematics and science from the perspective of radical and social constructivism. I have reflected on my experiences of radical and social constructivism through dilemma, dialogue, and defense of my personal epistemology of learning. I went…

  18. Research with Children: Challenges and Dilemmas as an Insider Researcher

    Science.gov (United States)

    Kim, Hye Won

    2012-01-01

    This paper explores the challenges and dilemmas raised by my own experience of researching an immigrant Korean child at an ethnic Sunday School where I taught. I review the ethical and methodological challenges raised in my interactions with the child as an insider researcher from the ways I approached consent forms through to interview…

  19. Can Teaching Social Dilemmas Make People More Prosocial? An Experiment

    Science.gov (United States)

    Martins, Julia; Fortmüller, Richard; Powell, Owen

    2017-01-01

    Economics and business students regularly behave less prosocially than others. Can ethics training reverse this tendency? Results from a repeated public goods experiment reveal that it can. Students who attend an interactive lecture on social dilemmas show significantly more cooperation than others. However, the lecture does not appear to increase…

  20. Ethical Dilemmas: A Model to Understand Teacher Practice

    Science.gov (United States)

    Ehrich, Lisa Catherine; Kimber, Megan; Millwater, Jan; Cranston, Neil

    2011-01-01

    Over recent decades, the field of ethics has been the focus of increasing attention in teaching. This is not surprising given that teaching is a moral activity that is heavily values-laden. Because of this, teachers face ethical dilemmas in the course of their daily work. This paper presents an ethical decision-making model that helps to explain…

  1. Wilderness management dilemmas: fertile ground for wilderness management research

    Science.gov (United States)

    David N. Cole; William E. Hammitt

    2000-01-01

    Increasingly, wilderness managers must choose between the objective of wildness (“untrammeled” wilderness) and the objectives of naturalness and solitude. This dilemma has surfaced with awareness of the pervasiveness of human influence in wilderness and that regulation is often the only way to maintain outstanding opportunities for solitude. Should we trammel...

  2. Heterogeneity in Social Dilemmas: The Case of Social Support

    NARCIS (Netherlands)

    Vogt, S.B.

    2007-01-01

    “Heterogeneous Social Dilemmas: The Case of Social Support” studies the level of social support between heterogeneous actors. We consider heterogeneity with respect to several individual properties: the likelihood of needing support, the costs of providing support, and the benefits from receiving

  3. The cybersecurity dilemma hacking, trust and fear between nations

    CERN Document Server

    Buchanan, Ben

    2017-01-01

    This book examines how cyber conflict could happen--even if no nation desires it. It applies the security dilemma, a long-standing idea in international relations, to cybersecurity. Drawing on a detailed analysis of leaked classified documents and cybersecurity forensic reports, this book shows how nations' methods of defending themselves in other states risk unintentionally threatening other nations and risking escalation.

  4. Latin American Urbanization Presented as a Decision-Making Dilemma.

    Science.gov (United States)

    Rengert, Arlene C.; Monk, Janice J.

    1981-01-01

    Describes a college-level geography unit on the socioeconomic influences affecting urban migration of women in Latin America. In role-playing modules, students explore dilemmas influencing individual migration decisions, Peace Corps project planning, and long-term international aid programs for urban Peruvian women. (AM)

  5. Child Soldiers in Africa: Solutions to a Complex Dilemma | Kalis ...

    African Journals Online (AJOL)

    This article focuses on the dilemma of using child soldiers in violent conflicts throughout Africa and on ways of resolving it in the future. The first section briefly examines some important domestic and international aspects and dimensions of the problem. Then, attention is shifted to particular individual countries on the ...

  6. Leadership styles in ethical dilemmas when head nurses make decisions.

    Science.gov (United States)

    Zydziunaite, V; Lepaite, D; Suominen, T

    2013-06-01

    The overlooked aspect in Lithuania is the dearth of leaders among head nurses, who bear the responsibility for decisions in ethical dilemmas. Understanding the application of leadership styles is fundamental to ensuring head nurses' abilities to influence outcomes for healthcare providers and patients. To identify the leadership styles applied by head nurses in decision making in ethical dilemmas on hospital wards. The data were collected by questionnaires completed by head nurses (n = 278) working in five major state-funded hospitals in each of the five regions of Lithuania. The data were analysed using SPSS 16.0, calculating descriptive statistics and analysis of variance. Head nurses apply democratic, affiliative, transformational and sustainable leadership styles when resolving ethical dilemmas. The application of leadership styles is associated not only with specific situations, but also with certain background factors, such as years of experience in a head nurse's position, ward specialization and the incidence of ethical dilemmas. Nurses having been in a head nurse's position over 10 years use primitive leadership styles, notably bureaucratic leadership, more often than do those head nurses with only a few years of experience in such a position. The results highlight the need for head nurses to reflect on their practices and to find new ways of learning from practice, colleagues and patients. Head nurses' managerial decisions due to their 'executive power' can turn into a new state-of-the-art leadership in nursing. © 2013 The Authors. International Nursing Review © 2013 International Council of Nurses.

  7. The Coherence Dilemma in Peacebuilding and Post-Conflict ...

    African Journals Online (AJOL)

    This article analyses the coherence and coordination dilemma in peace-building and post-conflict reconstruction systems, with special reference to the United Nations' integrated approach concept. It argues that all peacebuilding agents are interdependent in that they cannot individually achieve the goal of the overall ...

  8. Skyview Foods: Eric's Real Dilemma with Channel Partners

    Science.gov (United States)

    Castleberry, Stephen B.

    2011-01-01

    As a marketing analyst, Eric is faced with several ethical dilemmas. When asked to engage in unethical and illegal behavior, Eric must decide whether to obey his boss and fudge the numbers (the counts of product purchased in order to get reimbursed more from the manufacturer during special sales) or take the ethical route. The case consists of two…

  9. Case study: an ethical dilemma involving a dying patient.

    Science.gov (United States)

    Pacsi, Alsacia L

    2008-01-01

    Nursing often deals with ethical dilemmas in the clinical arena. A case study demonstrates an ethical dilemma faced by healthcare providers who care for and treat Jehovah's Witnesses who are placed in a critical situation due to medical life-threatening situations. A 20-year-old, pregnant, Black Hispanic female presented to the Emergency Department (ED) in critical condition following a single-vehicle car accident. She exhibited signs and symptoms of internal bleeding and was advised to have a blood transfusion and emergency surgery in an attempt to save her and the fetus. She refused to accept blood or blood products and rejected the surgery as well. Her refusal was based on a fear of blood transfusion due to her belief in Bible scripture. The ethical dilemma presented is whether to respect the patient's autonomy and compromise standards of care or ignore the patient's wishes in an attempt to save her life. This paper presents the clinical case, identifies the ethical dilemma, and discusses virtue ethical theory and principles that apply to this situation.

  10. Teachers' Critical Incidents: Ethical Dilemmas in Teaching Practice

    Science.gov (United States)

    Shapira-Lishchinsky, Orly

    2011-01-01

    The aim of this study is to explore ethical dilemmas in critical incidents and the emerged responses that these incidents elicit. Most teachers try to suppress these incidences because of the unpleasant feelings they evoke. Fifty teachers participated in the study. A three-stage coding process derived from grounded theory was utilized. A taxonomy…

  11. Ethical Dilemmas of Turkish Counsellors: A Critical Incidents Study

    Science.gov (United States)

    Sivis-Cetinkaya, Rahsan

    2015-01-01

    Ethical dilemmas from a national purposive sample of Turkish counsellors (N = 172) were collected using critical incidents technique. Content analysis was performed with open coding guided by the classification of American Counseling Association code of ethics. Incidents regarding confidentiality and privacy (56.4%), with 37.1% involving incidents…

  12. Ethical Dilemmas of Swedish School Leaders: Contrasts and Common Themes

    Science.gov (United States)

    Norberg, Katarina; Johansson, Olof

    2007-01-01

    Being a skillful school leader presumes the competence to judge the ethical consequences of actions. This implies a need for all school agents to discover and analyze what values are at stake and, in turn, reconcile didactic rationality with ethical rationality. This article aims to explore ethical dilemmas in daily school practice, experienced…

  13. An ethical dilemma: A case of student training, intermittent service ...

    African Journals Online (AJOL)

    One of the fundamental precepts in the training of students in a clinical discipline involves appropriate placement and supervision in order for learning outcomes to be achieved. As an academic/clinical educator, one is at times faced with dilemmas in student placement that challenge one's personal and professional ethics.

  14. Ethical dilemmas in malaria vector research in Africa: Making the ...

    African Journals Online (AJOL)

    Malaria vector research presents several dilemmas relating to the various ways in which humans are used in the malaria vector research enterprise. A review of the past and present practices reveals much about the prevailing attitudes and assumptions with regard to the ethical conduct of research involving humans.

  15. "Living" Ethical Dilemmas for Researchers When Researching with Children

    Science.gov (United States)

    Mortari, Luigina; Harcourt, Deborah

    2012-01-01

    This article will explore some of the ethical dilemmas that confront researchers when they seek to invite children's participation in research. It firstly tracks the historical landscape of ethical research and will examine the influence of the United Nations Convention on the Rights of the Child (UNCRC) on participatory research with children.…

  16. A quantum Samaritan’s dilemma cellular automaton

    Science.gov (United States)

    Situ, Haozhen

    2017-01-01

    The dynamics of a spatial quantum formulation of the iterated Samaritan’s dilemma game with variable entangling is studied in this work. The game is played in the cellular automata manner, i.e. with local and synchronous interaction. The game is assessed in fair and unfair contests, in noiseless scenarios and with disrupting quantum noise. PMID:28680654

  17. Does information about others’ behavior undermine cooperation in social dilemmas?

    NARCIS (Netherlands)

    Parks, Craig D.; Xu, Xiaojing; Van Lange, Paul A.M.

    2017-01-01

    This project addresses how and why behavior in a resource dilemma differs when one only knows the choices of others versus only knows the state of the resource. Study 1 suggested that resource information is more valuable than social information, in that if the resource can be monitored, whether or

  18. The Coherence Dilemma in Peacebuilding and Post-Conflict ...

    African Journals Online (AJOL)

    the lack of sustainability in the latter context, namely the coherence dilemma ... status quo, to peacebuilding, which has to do with managing change (Eide .... Innovation) for pointing out this difference (e-mail correspondence, 15 May .... If the peace process fails and the conflict resumes, ..... Collaborative Learning Project. An.

  19. The great downside dilemma for risky emerging technologies

    International Nuclear Information System (INIS)

    Baum, Seth D

    2014-01-01

    Some emerging technologies promise to significantly improve the human condition, but come with a risk of failure so catastrophic that human civilization may not survive. This article discusses the great downside dilemma posed by the decision of whether or not to use these technologies. The dilemma is: use the technology, and risk the downside of catastrophic failure, or do not use the technology, and suffer through life without it. Historical precedents include the first nuclear weapon test and messaging to extraterrestrial intelligence. Contemporary examples include stratospheric geoengineering, a technology under development in response to global warming, and artificial general intelligence, a technology that could even take over the world. How the dilemma should be resolved depends on the details of each technology’s downside risk and on what the human condition would otherwise be. Meanwhile, other technologies do not pose this dilemma, including sustainable design technologies, nuclear fusion power, and space colonization. Decisions on all of these technologies should be made with the long-term interests of human civilization in mind. This paper is part of a series of papers based on presentations at the Emerging Technologies and the Future of Humanity event held at the Royal Swedish Academy of Sciences on 17 March 2014. (invited comment)

  20. Moral dilemmas and moral principles: when emotion and cognition unite.

    Science.gov (United States)

    Manfrinati, Andrea; Lotto, Lorella; Sarlo, Michela; Palomba, Daniela; Rumiati, Rino

    2013-01-01

    Traditional studies on moral judgement used resolutions of moral dilemmas that were framed in terms of acceptability of the consequentialist action promoting a greater good, thus overlooking the deontological implications (choices cannot be justified by their consequences). Recently, some authors have suggested a parallelism between automatic, unreflective emotional responses and deontological moral judgements. In this study, we developed a novel experimental paradigm in which participants were required to choose between two resolutions of a moral dilemma (consequentialist and deontological). To assess whether emotions are engaged in each of the two resolutions, we asked participants to evaluate their emotional experience through the ratings of valence and arousal. Results showed that emotion is involved not only in deontological but also in consequentialist resolutions. Moreover, response times pointed out a different interplay between emotion and cognition in determining a conflict in the dilemma's resolution. In particular, when people were faced with trolley-like dilemmas we found that decisions leading to deontological resolutions were slower than decisions leading to consequentialist resolutions. We propose that this finding reflects the special (but not accepted) permission provided by the doctrine of the double effect for incidentally causing death for the sake of a good end.

  1. Monitoring interpersonal relationships through games with social dilemma

    NARCIS (Netherlands)

    Gorbunov, R.D.; Barakova, E.I.; Ahn, R.M.C.; Rauterberg, G.W.M.

    2011-01-01

    In this paper we introduce a method to monitor interpersonal relations through a game with a social dilemma. In the game players can interact with each other through negotiations and by exchanges of resources. To enable the monitoring of interpersonal relations this environment confronts players

  2. Dilemmas in counselling females with the fragile X syndrome

    NARCIS (Netherlands)

    B.B.A. de Vries (Bert); H.M. van den Boer-van den Berg; M.F. Niermeijer (Martinus); A. Tibben (Arend)

    1999-01-01

    textabstractThe dilemmas in counselling a mildly retarded female with the fragile X syndrome and her retarded partner are presented. The fragile X syndrome is an X linked mental retardation disorder that affects males and, often less severely, females. Affected females

  3. Trust, trolleys and social dilemmas: A replication study.

    Science.gov (United States)

    Bostyn, Dries H; Roets, Arne

    2017-05-01

    The present manuscript addresses how perceived trustworthiness of cooperative partners in a social dilemma context is influenced by the moral judgments those partners make on Trolley-type moral dilemmas; an issue recently investigated by Everett, Pizarro, and Crockett (2016). The present research comprises 2 studies that were conducted independently, simultaneously with, and incognizant of the Everett studies. Whereas the present studies aimed at investigating the same research hypothesis, a different and more elaborate methodology was used, as such providing a conceptual replication opportunity and extension to the Everett et al. Overall, the present studies clearly confirmed the main finding of Everett et al., that deontologists are more trusted than consequentialists in social dilemma games. Study 1 replicates Everett et al.'s effect in the context of trust games. Study 2 generalizes the effect to public goods games, thus demonstrating that it is not specific to the type of social dilemma game used in Everett et al. Finally, both studies build on these results by demonstrating that the increased trust in deontologists may sometimes, but not always, be warranted: deontologists displayed increased cooperation rates but only in the public goods game and not in trust games. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  4. Transformative Learning in Postapartheid South Africa: Disruption, Dilemma, and Direction

    Science.gov (United States)

    Cox, Amanda J.; John, Vaughn M.

    2016-01-01

    The catalyst for learning and change in transformative learning theory has mostly been explained in terms of a disorientation in a relatively stable life. This article explores a South African, nonformal adult learning program, as a source of "orienting dilemmas," which catalyze learning and change in lives that are regularly and…

  5. Educational Partnership and the Dilemmas of School Reform.

    Science.gov (United States)

    Seeley, David

    Today's educational reform proposals are undermined by four dilemmas. First, the public may demand visible results before it will provide the funding needed to achieve them. Second, higher academic standards will increase failure rates, while more attainable standards will inadequately educate students. Third, the current focus on high schools may…

  6. Something to die for: Rebutting the Mirkin & Goldman dilemma

    DEFF Research Database (Denmark)

    Christiansen, Ask Vest

    2016-01-01

    This essay investigates the soundness of the oft-repeated result of the Mirkin / Goldman dilemma. It says that approximately fifty per cent of all athletes should be willing to die if Olympic gold was at stake. The essay analyses the premises for this “well-known-fact” and traces the source for t...

  7. Inner Alchemy: Transforming Dilemmas in Education Through Mindfulness

    Science.gov (United States)

    Burrows, Leigh

    2015-01-01

    This article reports on face-to-face and online qualitative research conducted with 25 teachers from 8 schools in Australia that explored their experience of mindfulness and reflection in relation to a self-identified relational dilemma with a student, colleague, or parent who was causing them concern at work. The aim of this study was to find out…

  8. Social norms and cooperation in real-life social dilemmas

    DEFF Research Database (Denmark)

    Thøgersen, John

    2008-01-01

    The hypothesis that injunctive and descriptive norms interact positively or synergistically to promote cooperation in social dilemmas is tested in the context of a survey study focusing on environmentally responsible behaviour. Measurement error and strong and positive correlations between the two...

  9. Japanese University Athletes' Dilemma: Study, Sport Performance, or Both

    Science.gov (United States)

    Yamamoto, Yoshihiko

    2016-01-01

    The aims of this study were to investigate the Japanese university athletes' dilemma of managing both study and sport performance effectively, and to try to find answers to how they can effectively manage both their study and sport club activities. Questionnaires were used in order to collect the data (1st year, 2nd year, and 3rd year students). A…

  10. Naturalness and wilderness: the dilemma and irony of managing wilderness

    Science.gov (United States)

    Peter B. Landres; Mark W. Brunson; Linda Merigliano; Charisse Sydoriak; Steve Morton

    2000-01-01

    This paper summarizes a dialogue session that focused on two concepts that strongly influence nearly all wilderness management: wildness and naturalness. The origin and value of these concepts are discussed, as well as the dilemma and irony that arises when wilderness managers contemplate manipulating the environment to restore naturalness at the risk of reducing...

  11. The Diversity Education Dilemma: Exposing Status Hierarchies without Reinforcing Them

    Science.gov (United States)

    Amoroso, Lisa M.; Loyd, Denise Lewin; Hoobler, Jenny M.

    2010-01-01

    A "diversity education dilemma" occurs when exposure to information concerning status hierarchies, related to demographic and other socially salient identity groups, reinforces those hierarchies in the classroom. Discussions of diversity-related issues in a variety of management courses (e.g., immigrant issues in labor relations, the composition…

  12. The Career Officer Attrition Dilemma: An Underlying Cause

    Science.gov (United States)

    2002-04-09

    BOOMER, XER, & MILLENIAL TRAITS COMPARISON ..................................... 23 vii viii THE CAREER OFFICER ATTRITION DILEMMA: AN UNDERLYING...provide a sustainable solution. Multiple generations in the military will always be present. What will change, however, is which generation will be in the... MILLENIAL TRAITS COMPARISON cause serious frustration both for the senior leadership and their subordinates. Even as the Xers begin to take over from

  13. Dealing with bioethical dilemmas: A survey and analysis of ...

    African Journals Online (AJOL)

    2012-02-08

    Feb 8, 2012 ... seminars and short courses for practicing ministers to enhance awareness and allay fears .... this time, there were 295 practicing ministers in the RCSA ..... dilemmas in their congregations. TABLE 6: The level of agreement of ministers on issues regarding pastoral moral leadership. Leadership issues.

  14. Dilemmas of Professional Logics in the Response to Child Abuse

    DEFF Research Database (Denmark)

    Søbjerg, Lene Mosegaard

    2017-01-01

    The field of child abuse is characterized by involving a multitude of different professions. With multiple professions working together, a dilemma between different logics can arise. This communication includes data from a study among social workers dealing with child abuse in Denmark. The study...

  15. Dilemmas of Teaching Inquiry in Elementary Science Methods

    Science.gov (United States)

    Newman, William J., Jr.; Abell, Sandra K.; Hubbard, Paula D.; McDonald, James; Otaala, Justine; Martini, Mariana

    2004-01-01

    Because various definitions of inquiry exist in the science education literature and in classroom practice, elementary science methods students and instructors face dilemmas during the study of inquiry. Using field notes, instructor anecdotal notes, student products, and course artifacts, science methods course instructors created fictional…

  16. Leadership Analysis in K-12 Case Study: Superintendent's Hiring Dilemma

    Science.gov (United States)

    Alsobaie, Mohammed Fahad

    2016-01-01

    This paper will seek to analyze of the case "Superintendent's Hiring Dilemma" by Hoy and Tarter (2004) using multiple leadership perspectives. The last section of this analysis of the case study will provide the most effective leadership recommendations for the key players.

  17. Isolated cutaneous leishmaniasis over face – A diagnostic dilemma ...

    African Journals Online (AJOL)

    Isolated cutaneous leishmaniasis over face – A diagnostic dilemma. Santosh K. Swain, Ishwar C. Behera, Mahesh C. Sahu, Maitreyee Panda. Abstract. Cutaneous Leishmaniasis (CL) is a disease caused by an intracellular protozoa belong to the genus Leishmania, transmitted by the bite of a sandfly. It has diverse clinical ...

  18. Historische gezondheidsaffiches als uitdrukking van sociaal-medische dilemma's

    NARCIS (Netherlands)

    Hermans, H. J. E.; Meijman, F. J.; Klazinga, N. S.

    2006-01-01

    Historical health posters as expressions of public health dilemmas. The University of Amsterdam's historical collection of health and safety posters (1914-1960) from various countries deals primarily with workplace safety, infectious diseases and the early detection of cancer. Distinct underlying

  19. The urban dilemma: how to make cities safer | IDRC - International ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2015-10-01

    Oct 1, 2015 ... ... and inequalities, and identify which programs work – and which don't – to prevent and reduce violence in cities. Read the blog post. Learn more from the baseline study, Researching the Urban Dilemma. Find out more about how IDRC supports research to make cities safer through our partnership – Safe ...

  20. Financial Dilemmas Associated with the Afforestation of Low-Productivity Farmland in Poland

    Directory of Open Access Journals (Sweden)

    Alina Źróbek-Różańska

    2014-11-01

    Full Text Available In Poland, 82% of forests are State-owned, and only 17% of forests constitute private property. Each year, forests are converted to other land-use types, mainly for road construction. The afforestation rate on privately-owned low-productivity land is decreasing steadily. The owners and perpetual usufructuaries of this kind of land are eligible to government subsidies to cover establishment expenditures in whole or in part, provided that the afforestation scheme complies with the local zoning plan or an outline planning permission. The above creates a dilemma for farmers—is this a profitable option of managing low-productivity land? Owners of small farms particularly often face such dilemmas. Owners of small farms, which consist of low-yield agricultural land, can be regarded as investors operating on the real estate market, but those investors have features characteristic of agricultural producers. This study relied on the net present value (NPV criterion, which is popularly used to assess the effectiveness of investments on the real estate market. A financial feasibility assessment performed with the use of such method in view of afforestation statistics and the 5% discount rate on the Polish forest market revealed the highest increase in net cumulative cash flows in the first five years, followed by a gradual decrease in successive years. The first negative cash flow was reported in year 20. NPV would remain negative because farmers would be charged with periodic maintenance expenditures until the stand reaches harvestable age at approximately 40 years. The longer the investment period, the lower the profits, even if discount rate is excluded. Investments of the type are difficult to terminate because forests younger than 20 years are difficult to sell at a price that covers growing outflows. Afforestation projects are also influenced by other economic and non-economic factors. The paper validates the research hypothesis that afforestation

  1. Universal scaling for the dilemma strength in evolutionary games

    Science.gov (United States)

    Wang, Zhen; Kokubo, Satoshi; Jusup, Marko; Tanimoto, Jun

    2015-09-01

    Why would natural selection favor the prevalence of cooperation within the groups of selfish individuals? A fruitful framework to address this question is evolutionary game theory, the essence of which is captured in the so-called social dilemmas. Such dilemmas have sparked the development of a variety of mathematical approaches to assess the conditions under which cooperation evolves. Furthermore, borrowing from statistical physics and network science, the research of the evolutionary game dynamics has been enriched with phenomena such as pattern formation, equilibrium selection, and self-organization. Numerous advances in understanding the evolution of cooperative behavior over the last few decades have recently been distilled into five reciprocity mechanisms: direct reciprocity, indirect reciprocity, kin selection, group selection, and network reciprocity. However, when social viscosity is introduced into a population via any of the reciprocity mechanisms, the existing scaling parameters for the dilemma strength do not yield a unique answer as to how the evolutionary dynamics should unfold. Motivated by this problem, we review the developments that led to the present state of affairs, highlight the accompanying pitfalls, and propose new universal scaling parameters for the dilemma strength. We prove universality by showing that the conditions for an ESS and the expressions for the internal equilibriums in an infinite, well-mixed population subjected to any of the five reciprocity mechanisms depend only on the new scaling parameters. A similar result is shown to hold for the fixation probability of the different strategies in a finite, well-mixed population. Furthermore, by means of numerical simulations, the same scaling parameters are shown to be effective even if the evolution of cooperation is considered on the spatial networks (with the exception of highly heterogeneous setups). We close the discussion by suggesting promising directions for future research

  2. Radiation protection zoning

    International Nuclear Information System (INIS)

    2015-01-01

    Radiation being not visible, the zoning of an area containing radioactive sources is important in terms of safety. Concerning radiation protection, 2 work zones are defined by regulations: the monitored zone and the controlled zone. The ministerial order of 15 may 2006 settles the frontier between the 2 zones in terms of radiation dose rates, the rules for access and the safety standards in both zones. Radioprotection rules and the name of the person responsible for radiation protection must be displayed. The frontier between the 2 zones must be materialized and marked with adequate equipment (specific danger signs and tapes). Both zones are submitted to selective entrance, the access for the controlled zone is limited because of the radiation risk and of the necessity of confining radioactive contamination while the limitation of the access to the monitored zone is due to radiation risk only. (A.C.)

  3. A virtue ethics approach to moral dilemmas in medicine

    Science.gov (United States)

    Gardiner, P

    2003-01-01

    Most moral dilemmas in medicine are analysed using the four principles with some consideration of consequentialism but these frameworks have limitations. It is not always clear how to judge which consequences are best. When principles conflict it is not always easy to decide which should dominate. They also do not take account of the importance of the emotional element of human experience. Virtue ethics is a framework that focuses on the character of the moral agent rather than the rightness of an action. In considering the relationships, emotional sensitivities, and motivations that are unique to human society it provides a fuller ethical analysis and encourages more flexible and creative solutions than principlism or consequentialism alone. Two different moral dilemmas are analysed using virtue ethics in order to illustrate how it can enhance our approach to ethics in medicine. PMID:14519840

  4. [Child sexual abuse: clinical perspectives and ethico-legal dilemmas].

    Science.gov (United States)

    Franco, Alvaro; Ramírez, Luis

    2016-01-01

    In the review of the current literature, the main causing factors of the related conditions with child sexual abuse are the ethical dilemmas and legal implications. A review was conducted on the classic literature on this topic. In this articlesome difficult paradigmatic cases are presented in which the hypothetical dilemmas were solved. The main characteristics of child sexual abuse enable us to have a better argument to address these situations. Taking into account the literature reviewed and predictable courses of action, it is concluded that it is important to take into account each individual each case and its circumstances, and that prudence and clinical objectivity, as well as knowledge of the law, become essential requirements for proper action. Copyright © 2015 Asociación Colombiana de Psiquiatría. Publicado por Elsevier España. All rights reserved.

  5. Social Stratification and Cooperative Behavior in Spatial Prisoners' Dilemma Games.

    Directory of Open Access Journals (Sweden)

    Peng Lu

    Full Text Available It has been a long-lasting pursuit to promote cooperation, and this study aims to promote cooperation via the combination of social stratification and the spatial prisoners' dilemma game. It is previously assumed that agents share the identical payoff matrix, but the stratification or diversity exists and exerts influences in real societies. Thus, two additional classes, elites and scoundrels, derive from and coexist with the existing class, commons. Three classes have different payoff matrices. We construct a model where agents play the prisoners' dilemma game with neighbors. It indicates that stratification and temptation jointly influence cooperation. Temptation permanently reduces cooperation; elites play a positive role in promoting cooperation while scoundrels undermine it. As the temptation getting larger and larger, elites play a more and more positive and critical role while scoundrels' negative effect becomes weaker and weaker, and it is more obvious when temptation goes beyond its threshold.

  6. An exploration of adolescent snacking conventions and dilemmas

    DEFF Research Database (Denmark)

    Bech-Larsen, Tino; Jensen, Birger Boutrup; Pedersen, Susanne

    2010-01-01

    Purpose – Snacking has been characterized as normatively unrestricted and identified as one of the main causes of adolescent obesity. The purpose of this paper is not to question the relation between obesity and snacking, but to ask to which extent adolescent snacking is socially unrestricted...... and to explore adolescent perceptions of the potential conventions and dilemmas involved in snacking. Design/methodology/approach – Referring to previous research in food choice dilemmas and conventions, the paper starts out by discussing potential implications for adolescent snacking in different social...... contexts. Following this, the design, implementation and results of three focus groups, aiming at an exploration of adolescent snacking perceptions is described. Findings – By identifying two distinct forms of adolescent snacking, i.e. ‘‘in-between meals’’ and ‘‘fun snacks’’, the results of the focus...

  7. A virtue ethics approach to moral dilemmas in medicine.

    Science.gov (United States)

    Gardiner, P

    2003-10-01

    Most moral dilemmas in medicine are analysed using the four principles with some consideration of consequentialism but these frameworks have limitations. It is not always clear how to judge which consequences are best. When principles conflict it is not always easy to decide which should dominate. They also do not take account of the importance of the emotional element of human experience. Virtue ethics is a framework that focuses on the character of the moral agent rather than the rightness of an action. In considering the relationships, emotional sensitivities, and motivations that are unique to human society it provides a fuller ethical analysis and encourages more flexible and creative solutions than principlism or consequentialism alone. Two different moral dilemmas are analysed using virtue ethics in order to illustrate how it can enhance our approach to ethics in medicine.

  8. Memory boosts turn taking in evolutionary dilemma games.

    Science.gov (United States)

    Wang, Tao; Chen, Zhigang; Yang, Lei; Zou, You; Luo, Juan

    2015-05-01

    Spontaneous turn taking phenomenon can be observed in many self-organized systems, and the mechanism is unclear. This paper tries to model it by evolutionary dilemma games with memory mechanism. Prisoner's dilemma, Snowdrift (including Leader and Hero) and Stag-hunt games are unified on an extended S-T plane. Agents play game with all the others and make decision by the last game histories. The experiments find that when agents remember last 2-step histories or more, a kind of cooperative turn taking (CAD) bursts at the area of Snowdrift game with restriction of S + T > 2R and S ≠ T, while the consistent strategy (DorC) gathers on the line of S + T > 2R and S = T. We also find that the system's fitness ratio greatly improved with 2-step memory. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  9. Finding faults: how moral dilemmas illuminate cognitive structure.

    Science.gov (United States)

    Cushman, Fiery; Greene, Joshua D

    2012-01-01

    Philosophy is rife with intractable moral dilemmas. We propose that these debates often exist because competing psychological systems yield different answers to the same problem. Consequently, philosophical debate points to the natural fault lines between dissociable psychological mechanisms, and as such provides a useful guide for cognitive neuroscience. We present two case studies from recent research into moral judgment: dilemmas concerning whether to harm a person in order to save several others, and whether to punish individuals for harms caused accidentally. Finally, we analyze two features of mental conflict that apparently contribute to philosophical discord: the insistence that one answer to a problem must be correct ("non-negotiability") and the absence of an independent means of determining the correct answer ("non-adjudicability"). Fiery Cushman thanks the Mind/Brain/Behavior Initiative for its generous support during the preparation of this work.

  10. Aggressive osteoblastoma of the mandible: A diagnostic dilemma

    Directory of Open Access Journals (Sweden)

    Harshaminder Kaur

    2012-01-01

    Full Text Available The clinical facts and radiologic findings are very important in the diagnostic evaluation of jaw swellings, and must be considered along with histologic findings. Osteoblastoma, an uncommon primary lesion of the bone that occasionally arises in the jaws, is one such lesion causing a localized jaw swelling. Clinically, osteoblastoma can be symptomatic or even remain symptom-free, and may be diagnosed only on routine radiographic examination. Histologically and clinically, differential diagnosis for osteoblastoma ranges from a variety of benign and malignant tumors that poses a diagnostic dilemma. Stressing the importance of the correct diagnosis of such lesions, this report discusses a case of aggressive osteoblastoma of the mandible posing as a diagnostic dilemma.

  11. Ethical dilemmas in pediatric and adolescent psychogenic nonepileptic seizures.

    Science.gov (United States)

    Cole, Cristie M; Falcone, Tatiana; Caplan, Rochelle; Timmons-Mitchell, Jane; Jares, Kristine; Ford, Paul J

    2014-08-01

    To date, only a very narrow window of ethical dilemmas in psychogenic nonepileptic seizures (PNES) has been explored. Numerous distinct ethical dilemmas arise in diagnosing and treating pediatric and adolescent patients with PNESs. Important ethical values at stake include trust, transparency, confidentiality, professionalism, autonomy of all stakeholders, and justice. In order to further elucidate the ethical challenges in caring for this population, an ethical analysis of the special challenges faced in four specific domains is undertaken: (1) conducting and communicating a diagnosis of PNESs, (2) advising patients about full transparency and disclosure to community including patients' peers, (3) responding to requests to continue antiepileptic drugs, and (4) managing challenges arising from school policy and procedure. An analysis of these ethical issues is essential for the advancement of best care practices that promote the overall well-being of patients and their families. Copyright © 2014 Elsevier Inc. All rights reserved.

  12. What makes moral dilemma judgments "utilitarian" or "deontological"?

    Science.gov (United States)

    Gawronski, Bertram; Beer, Jennifer S

    2017-12-01

    The distinction between utilitarianism and deontology has become a prevailing framework for conceptualizing moral judgment. According to the principle of utilitarianism, the morality of an action depends on its outcomes. In contrast, the principle of deontology states that the morality of an action depends on its consistency with moral norms. To identify the processes underlying utilitarian and deontological judgments, research in psychology and neuroscience has investigated responses to moral dilemmas that pit one principle against the other (e.g., trolley dilemma). However, the interpretation of responses in this paradigm is ambiguous, because the defining aspects of utilitarianism and deontology, outcomes and norms, are not manipulated. We illustrate how this shortcoming distorts interpretations of empirical findings and describe an alternative approach that overcomes the limitations of the traditional paradigm.

  13. Work-hour restrictions as an ethical dilemma for residents.

    Science.gov (United States)

    Carpenter, Robert O; Austin, Mary T; Tarpley, John L; Griffin, Marie R; Lomis, Kimberly D

    2006-04-01

    We propose that the standardized work-hour limitations have created an ethical dilemma for residents. A survey tool was designed to assess factors that influence the number of hours residents work and report. The program directors of pediatrics, internal medicine, and general surgery at our institution supported their residents' participation. A voluntary, anonymous survey of these residents was performed. One hundred seventy of 265 eligible residents were surveyed. Eighty-one percent of residents surveyed responded. Eighty percent of respondents reported exceeding work-hour restrictions at least once within the past 6 months. The factor of greatest influence measured was concern for patient care (80%). Forty-nine percent of respondents admitted underreporting their work hours. The Accreditation Council for Graduate Medical Education work-hour restrictions have created an ethical dilemma for residents. Our data show that a significant number of residents feel compelled to exceed work-hour regulations and report those hours falsely.

  14. Dilemmas and paradoxes of capacity building in African higher education

    DEFF Research Database (Denmark)

    Madsen, Lene Møller; Jensen, Stig; Adriansen, Hanne Kirstine

    2015-01-01

    This chapter discusses and reflects on the dilemmas and paradoxes of capacity building in African higher education by drawing on the findings of the case-based chapters in the book. The collection confirms the importance of using geography of knowledge as an approach for understanding how capacity...... building influences and affects African academics, institutions and degree programmes. The chapters also illustrate how reflexivity and positionality can be important tools for highlighting the power relations inherent in capacity building. In this chapter we discuss the three interwoven dilemmas...... neo-imperial effects of internationalisation. We finally argue that capacity building programmes can be a means to assist African universities to ‘find their own feet’ if they are based on long terms partnerships, a close understanding of historical, political and geographical context, and not least...

  15. Die dilemma van die musiekwetenskaplike in die onderrigsituasie

    Directory of Open Access Journals (Sweden)

    Bertha Spies

    1995-03-01

    Full Text Available The dilemma of the musicologist who is also a teacher. In this article a main educational objective, namely the interpretation of reality, forms the basis for discussing the dilemma of the musicologist who is also a teacher. Firstly, various facets of musical reality are discussed under the following headings: the meaning of reality for the musicologist, artistic representation of reality and an idealized musical reality. Secondly, the manner in which musical reality is interpreted is discussed. Thirdly, results of a fragmented musical reality are mentioned and finally, proposals aimed at solving the problem of the musicologist-teacher are put forward, arguing for a more objective view of reality as a whole, stressing the double responsibility of the musicologist-teacher to interpreting difficult texts and the necessity to re-evaluate traditional theories in the light of their didactic effectiveness.

  16. Virtue ethics: an approach to moral dilemmas in nursing.

    Science.gov (United States)

    Arries, E

    2005-08-01

    Nurses are increasingly confronted with situations of moral difficulty, such as not to feed terminally ill patients, whistle blowing, or participation in termination of pregnancy. Most of these moral dilemmas are often analyzed using the principle-based approach which applies the four moral principles of justice, autonomy, beneficence, and non-malificence. In some instances, consequentialism is considered, but these frameworks have their limitations. Their limitations has to do with a consideration for the interpersonal nature of clinical nursing practice on the one hand, and is not always clear on how to judge which consequences are best on the other hand. When principles are in conflict it is not always easy to decide which principle should dominate. Furthermore, these frameworks do not take into account the importance of the interpersonal and emotional element of human experience. On the contrary, decision-making about moral issues in healthcare demands that nurses exercise rational control over emotions. This clearly focuses the attention on the nurse as moral agent and in particular their character. In this article I argue that virtue ethics as an approach, which focus of the character of a person, might provide a more holistic analysis of moral dilemmas in nursing and might facilitate more flexible and creative solutions when combined with other theories of moral decision-making. Advancing this argument, firstly, I provide the central features of virtue ethics. Secondly I describe a story in which a moral dilemma is evident. Lastly I apply virtue ethics as an approach to this moral dilemma and in particular focusing on the virtues inherent in the nurse as moral agent in the story.

  17. [Sigmoid endometriosis: a diagnostic dilemma on multidetector CT].

    Science.gov (United States)

    Telegrafo, Michele; Lorusso, Valentina; Rubini, Giuseppe; Rella, Leonarda; Pezzolla, Angela; Stabile Ianora, Amato Antonio; Moschetta, Marco

    2013-01-01

    Intestinal endometriosis represents a common condition that occurs particularly in women of reproductive age. The gastrointestinal tract is the third most common localization of endometriosis, after the ovaries and the peritoneum, and recto-sigmoid tract is involved in 70% of cases. Recto-sigmoid endometriosis has to be differentiated from other diseases of large bowel, especially in patients without a history of endometriosis. We report a case of sigmoid endometriosis which represented a diagnostic dilemma on multidetector computed tomography.

  18. Reinforcement learning produces dominant strategies for the Iterated Prisoner's Dilemma.

    Directory of Open Access Journals (Sweden)

    Marc Harper

    Full Text Available We present tournament results and several powerful strategies for the Iterated Prisoner's Dilemma created using reinforcement learning techniques (evolutionary and particle swarm algorithms. These strategies are trained to perform well against a corpus of over 170 distinct opponents, including many well-known and classic strategies. All the trained strategies win standard tournaments against the total collection of other opponents. The trained strategies and one particular human made designed strategy are the top performers in noisy tournaments also.

  19. The Ethical Dilemmas and Ethical Choices in Atonement

    Institute of Scientific and Technical Information of China (English)

    陈晶

    2017-01-01

    Atonement, as the representative work of British writer Ian McEwan, is of high educational significance. This article wil adopt Ethical Literary Criticism to analyze the ethical dilemmas and ethical choices of two characters in the novel: Briony and Robbie. By putting the characters into diversified ethical problems, the writer has strengthened the necessity of reflection and atonement in real life, and also the moral responsibilities one should bear. The analysis of characters' ethical problems can better highlight the writer's moral value.

  20. Virtue ethics: an approach to moral dilemmas in nursing

    OpenAIRE

    E Arries

    2005-01-01

    Nurses are increasingly confronted with situations of moral difficulty, such as not to feed terminally ill patients, whistle blowing, or participation in termination of pregnancy. Most of these moral dilemmas are often analyzed using the principle-based approach which applies the four moral principles of justice, autonomy, beneficence, and nonmalificence. In some instances, consequentialism is considered, but these frameworks have their limitations. Their limitations has to do with a consider...

  1. Virtue ethics: an approach to moral dilemmas in nursing

    Directory of Open Access Journals (Sweden)

    E Arries

    2005-09-01

    Full Text Available Nurses are increasingly confronted with situations of moral difficulty, such as not to feed terminally ill patients, whistle blowing, or participation in termination of pregnancy. Most of these moral dilemmas are often analyzed using the principle-based approach which applies the four moral principles of justice, autonomy, beneficence, and nonmalificence. In some instances, consequentialism is considered, but these frameworks have their limitations. Their limitations has to do with a consideration for the interpersonal nature of clinical nursing practice on the one hand, and is not always clear on how to judge which consequences are best on the other hand. When principles are in conflict it is not always easy to decide which principle should dominate. Furthermore, these frameworks do not take into account the importance of the interpersonal and emotional element of human experience. On the contrary, decision making about moral issues in healthcare demands that nurses exercise rational control over emotions. This clearly focuses the attention on the nurse as moral agent and in particular their character. In this article I argue that virtue ethics as an approach, which focus of the character of a person, might provide a more holistic analysis of moral dilemmas in nursing and might facilitate more flexible and creative solutions when combined with other theories of moral decision-making. Advancing this argument, firstly, I provide the central features of virtue ethics. Secondly I describe a story in which a moral dilemma is evident. Lastly I apply virtue ethics as an approach to this moral dilemma and in particular focusing on the virtues inherent in the nurse as moral agent in the story.

  2. Reinforcement learning produces dominant strategies for the Iterated Prisoner's Dilemma.

    Science.gov (United States)

    Harper, Marc; Knight, Vincent; Jones, Martin; Koutsovoulos, Georgios; Glynatsi, Nikoleta E; Campbell, Owen

    2017-01-01

    We present tournament results and several powerful strategies for the Iterated Prisoner's Dilemma created using reinforcement learning techniques (evolutionary and particle swarm algorithms). These strategies are trained to perform well against a corpus of over 170 distinct opponents, including many well-known and classic strategies. All the trained strategies win standard tournaments against the total collection of other opponents. The trained strategies and one particular human made designed strategy are the top performers in noisy tournaments also.

  3. Human collective intelligence under dual exploration-exploitation dilemmas.

    Directory of Open Access Journals (Sweden)

    Wataru Toyokawa

    Full Text Available The exploration-exploitation dilemma is a recurrent adaptive problem for humans as well as non-human animals. Given a fixed time/energy budget, every individual faces a fundamental trade-off between exploring for better resources and exploiting known resources to optimize overall performance under uncertainty. Colonies of eusocial insects are known to solve this dilemma successfully via evolved coordination mechanisms that function at the collective level. For humans and other non-eusocial species, however, this dilemma operates within individuals as well as between individuals, because group members may be motivated to take excessive advantage of others' exploratory findings through social learning. Thus, even though social learning can reduce collective exploration costs, the emergence of disproportionate "information scroungers" may severely undermine its potential benefits. We investigated experimentally whether social learning opportunities might improve the performance of human participants working on a "multi-armed bandit" problem in groups, where they could learn about each other's past choice behaviors. Results showed that, even though information scroungers emerged frequently in groups, social learning opportunities reduced total group exploration time while increasing harvesting from better options, and consequentially improved collective performance. Surprisingly, enriching social information by allowing participants to observe others' evaluations of chosen options (e.g., Amazon's 5-star rating system in addition to choice-frequency information had a detrimental impact on performance compared to the simpler situation with only the choice-frequency information. These results indicate that humans groups can handle the fundamental "dual exploration-exploitation dilemmas" successfully, and that social learning about simple choice-frequencies can help produce collective intelligence.

  4.  Gadeplansarbejdets grænseposition - muligheder og dilemmaer

    DEFF Research Database (Denmark)

    Mørck, Line Lerche

    2010-01-01

    Artiklen giver et bud på, hvordan vi gennem grænsefællesskaber på tværs af etniske og sociale skel kan bevæge det etablerede samfund og de unge, så de unge kommer 'indenfor rækkevidde'. Der diskuteres muligheder og dilemmaer i et gadeplansarbejde, der mødes med forventninger om at skulle samarbej...

  5. Essays on the collective action dilemma of vaccination

    OpenAIRE

    Ahlskog, Rafael

    2017-01-01

    Vaccines famously possess positive externalities that make them susceptible to the collective action dilemma: when I get vaccinated, I protect not only myself, but also those who I might otherwise have infected. Thus, some people will have an incentive to free ride on the immunity of others. In a population of rational agents, the critical level of vaccination uptake required for herd immunity will therefore be difficult to attain in the long run, which poses difficulties for disease eradicat...

  6. Dilemma Produced by Infinity of a Random Walk

    International Nuclear Information System (INIS)

    Li Jing-Hui

    2015-01-01

    We report a dilemma produced by the infinity of a random walk moving along a two-dimensional space sidestep. For this random walk, our investigation shows that using a different model can lead to a different diffusion coefficient of the random walk, which is produced by the infinity of the random walk. The result obtained by us in the present work can serve as a warning to us when we build the models to investigate the corresponding scientific problems. (paper)

  7. A Nuclear Dilemma--Korean War Deja Vu

    Science.gov (United States)

    2006-03-08

    USAWC STRATEGY RESEARCH PROJECT A NUCLEAR DILEMMA—KOREAN WAR DEJA VU by Lieutenant Colonel Trent A. Pickering United States Air Force Colonel William...Lieutenant Colonel Trent A. Pickering TITLE: A Nuclear Dilemma—Korean War Deja Vu FORMAT: Strategy Research Project DATE: 8 March 2006 WORD COUNT: 19,270...1. REPORT DATE 15 MAR 2006 2. REPORT TYPE 3. DATES COVERED 00-00-2005 to 00-00-2006 4. TITLE AND SUBTITLE Nuclear Dilemma--Korean War Deja

  8. The approval mechanism solves the prisoner's dilemma theoretically and experimentally

    OpenAIRE

    Tatsuyoshi Saijo; Yoshitaka Okano; Takafumi Yamakawa

    2015-01-01

    Consider a situation where players in a prisoner's dilemma game can approve or reject the other's choice such as cooperation or defection. If both players approve the other's choice, the outcome is the one they chose, whereas if either one rejects the other's choice, the outcome is the one when both defect, which we name the approval mechanism herein (this is inspired by the Cold War doctrine of mutually assured destruction). Experimentally, we find that the cooperation rate with the approval...

  9. From Local to Global Dilemmas in Social Networks

    OpenAIRE

    Pinheiro, Fl?vio L.; Pacheco, Jorge M.; Santos, Francisco C.

    2012-01-01

    Social networks affect in such a fundamental way the dynamics of the population they support that the global, population-wide behavior that one observes often bears no relation to the individual processes it stems from. Up to now, linking the global networked dynamics to such individual mechanisms has remained elusive. Here we study the evolution of cooperation in networked populations and let individuals interact via a 2-person Prisoner's Dilemma ? a characteristic defection dominant social ...

  10. When Societal Norms and Social Identity Collide: the Race Talk Dilemma for Racial Minority Children

    OpenAIRE

    Pauker, Kristin; Apfelbaum, Evan P.; Spitzer, Brian

    2015-01-01

    Racial minorities face a unique “race talk” dilemma in contemporary American society: their racial background is often integral to their identity and how others perceive them, yet talk of race is taboo. This dilemma highlights the conflict between two fundamental social processes: social identity development and social norm adherence. To examine how, and with what costs, this dilemma is resolved, 9–12-year-old Latino, Asian, Black, and White children (n=108) completed a photo identification t...

  11. Understanding ethical dilemmas in the military workplace factors that influence the decision to take action

    OpenAIRE

    Blevins, Rodney D.

    2004-01-01

    Approved for public release; distribution in unlimited. This study examines ethical dilemmas in the workplace and how organizational members move to resolve these challenges. Existing research was reviewed to gain insight and determine current views of ethical dilemmas experienced at work. A study was then conducted with Supply Corps Officers in the U.S. Navy to better understand the dilemmas they face in their daily work life. Officers were asked to think of a critical incident when they ...

  12. How Large Is the Role of Emotion in Judgments of Moral Dilemmas?

    OpenAIRE

    Horne, Zachary; Powell, Derek

    2016-01-01

    Moral dilemmas often pose dramatic and gut-wrenching emotional choices. It is now widely accepted that emotions are not simply experienced alongside people's judgments about moral dilemmas, but that our affective processes play a central role in determining those judgments. However, much of the evidence purporting to demonstrate the connection between people's emotional responses and their judgments about moral dilemmas has recently been called into question. In the present studies, we reexam...

  13. Sidetracked by trolleys: Why sacrificial moral dilemmas tell us little (or nothing) about utilitarian judgment

    OpenAIRE

    Kahane, Guy

    2015-01-01

    Research into moral decision-making has been dominated by sacrificial dilemmas where, in order to save several lives, it is necessary to sacrifice the life of another person. It is widely assumed that these dilemmas draw a sharp contrast between utilitarian and deontological approaches to morality, and thereby enable us to study the psychological and neural basis of utilitarian judgment. However, it has been previously shown that some sacrificial dilemmas fail to present a genuine contrast be...

  14. The social dilemma structure of climate change mitigation: individual responses and effects on action

    OpenAIRE

    Bӧgelein, Sandra

    2015-01-01

    Abstract Climate change mitigation constitutes a social dilemma, a conflict between personal and collective outcomes. Behaviours that result in personal benefits (e.g. travelling quickly, conveniently and cheaply by plane) also result in a collective cost in the form of climate change. Behavioural theories and evidence suggest this social dilemma structure significantly influences behaviour. This thesis aims to understand how the social dilemma structure of climate change mitigation affect...

  15. The edge of neutral evolution in social dilemmas

    Energy Technology Data Exchange (ETDEWEB)

    Cremer, Jonas; Frey, Erwin [Arnold Sommerfeld Center for Theoretical Physics and Center for NanoScience, Department of Physics, Ludwig-Maximilians-Universitaet Muenchen, Theresienstrasse 37, D-80333 Muenchen (Germany); Reichenbach, Tobias [Howard Hughes Medical Institute and Laboratory of Sensory Neuroscience, Rockefeller University, 1230 York Avenue, New York, NY 10065 (United States)], E-mail: jonas.cremer@physik.uni-muenchen.de

    2009-09-15

    The functioning of animal as well as human societies fundamentally relies on cooperation. Yet, defection is often favorable for the selfish individual, and social dilemmas arise. Selection by individuals' fitness, usually the basic driving force of evolution, quickly eliminates cooperators. However, evolution is also governed by fluctuations that can be of greater importance than fitness differences, and can render evolution effectively neutral. Here, we investigate the effects of selection versus fluctuations in social dilemmas. By studying the mean extinction times of cooperators and defectors, a variable sensitive to fluctuations, we are able to identify and quantify an emerging 'edge of neutral evolution' that delineates regimes of neutral and Darwinian evolution. Our results reveal that cooperation is significantly maintained in the neutral regimes. In contrast, the classical predictions of evolutionary game theory, where defectors beat cooperators, are recovered in the Darwinian regimes. Our studies demonstrate that fluctuations can provide a surprisingly simple way to partly resolve social dilemmas. Our methods are generally applicable to estimate the role of random drift in evolutionary dynamics.

  16. Intergroup Prisoner’s Dilemma with Intragroup Power Dynamics

    Directory of Open Access Journals (Sweden)

    Christian Lebiere

    2011-02-01

    Full Text Available The Intergroup Prisoner’s Dilemma with Intragroup Power Dynamics (IPD^2 is a new game paradigm for studying human behavior in conflict situations. IPD^2 adds the concept of intragroup power to an intergroup version of the standard Repeated Prisoner’s Dilemma game. We conducted a laboratory study in which individual human participants played the game against computer strategies of various complexities. The results show that participants tend to cooperate more when they have greater power status within their groups. IPD^2 yields increasing levels of mutual cooperation and decreasing levels of mutual defection, in contrast to a variant of Intergroup Prisoner’s Dilemma without intragroup power dynamics where mutual cooperation and mutual defection are equally likely. We developed a cognitive model of human decision making in this game inspired by the Instance-Based Learning Theory (IBLT and implemented within the ACT-R cognitive architecture. This model was run in place of a human participant using the same paradigm as the human study. The results from the model show a pattern of behavior similar to that of human data. We conclude with a discussion of the ways in which the IPD^2 paradigm can be applied to studying human behavior in conflict situations. In particular, we present the current study as a possible contribution to corroborating the conjecture that democracy reduces the risk of wars.

  17. Duality, phase structures, and dilemmas in symmetric quantum games

    International Nuclear Information System (INIS)

    Ichikawa, Tsubasa; Tsutsui, Izumi

    2007-01-01

    Symmetric quantum games for 2-player, 2-qubit strategies are analyzed in detail by using a scheme in which all pure states in the 2-qubit Hilbert space are utilized for strategies. We consider two different types of symmetric games exemplified by the familiar games, the Battle of the Sexes (BoS) and the Prisoners' Dilemma (PD). These two types of symmetric games are shown to be related by a duality map, which ensures that they share common phase structures with respect to the equilibria of the strategies. We find eight distinct phase structures possible for the symmetric games, which are determined by the classical payoff matrices from which the quantum games are defined. We also discuss the possibility of resolving the dilemmas in the classical BoS, PD, and the Stag Hunt (SH) game based on the phase structures obtained in the quantum games. It is observed that quantization cannot resolve the dilemma fully for the BoS, while it generically can for the PD and SH if appropriate correlations for the strategies of the players are provided

  18. Conventional arms control and the nuclear weapons dilemma in Europe

    International Nuclear Information System (INIS)

    Hopmann, P.T.

    1988-01-01

    This paper sets forth some fundamental propositions about the role of conventional arms control in connection with the nuclear weapons dilemma in Europe. A fundamental underlying premise of this analysis is that nuclear and non-nuclear issues in European security are inextricably linked with one another. Therefore, they should not be separated either conceptually or at the level of policy analysis and prescription. An additional basic assumption is that the attainment of an appropriate security regime in Europe is hindered by the security dilemma, in which measures that enhance the security of one side in the East-West conflict are often perceived by the other as detracting from their own security. Therefore, a regime intended to enhance common security throughout the continent must be designed so as to reduce rather than exacerbate this dilemma. The analysis of the requirements for confidence-building measures and arms control rests on several propositions that have been introduced by numerous other authors in this volume. These propositions will be summarized here briefly in order to lay the foundation for the subsequent analysis of confidence-building and arms control initiatives

  19. Incidental emotions in moral dilemmas: the influence of emotion regulation.

    Science.gov (United States)

    Szekely, Raluca D; Miu, Andrei C

    2015-01-01

    Recent theories have argued that emotions play a central role in moral decision-making and suggested that emotion regulation may be crucial in reducing emotion-linked biases. The present studies focused on the influence of emotional experience and individual differences in emotion regulation on moral choice in dilemmas that pit harming another person against social welfare. During these "harm to save" moral dilemmas, participants experienced mostly fear and sadness but also other emotions such as compassion, guilt, anger, disgust, regret and contempt (Study 1). Fear and disgust were more frequently reported when participants made deontological choices, whereas regret was more frequently reported when participants made utilitarian choices. In addition, habitual reappraisal negatively predicted deontological choices, and this effect was significantly carried through emotional arousal (Study 2). Individual differences in the habitual use of other emotion regulation strategies (i.e., acceptance, rumination and catastrophising) did not influence moral choice. The results of the present studies indicate that negative emotions are commonly experienced during "harm to save" moral dilemmas, and they are associated with a deontological bias. By efficiently reducing emotional arousal, reappraisal can attenuate the emotion-linked deontological bias in moral choice.

  20. Social Dilemmas and Indirect Reciprocity: A systematic review

    Directory of Open Access Journals (Sweden)

    Cristian Acosta

    2014-08-01

    Full Text Available Indirect reciprocity is an evolutionary theory of altruism and cooperation in social dilemmas. Its explanation of cooperation incorporates information on the reputation people hold of other people regarding whether they are cooperative or not. This study systematically reviewed the current empirical literature on indirect reciprocity in social dilemma situations. The following databases were consulted: ScienceDirect, EBSCO, and OVID, using has key words "indirect reciprocity" AND "dilemma" OR "cooperation" OR "charity". Twenty-three articles were selected which met the inclusion criteria (papers written in English and studies whose methodology was based on experimental games and the theories, objectives, the main types of samples used, and main results were analyzed. The results show that the games used were the indirect reciprocity and public goods games, which may vary according to the objectives. It was found that reputation is a key variable that helps to promote cooperation. In turn, information on previous cooperation helps to build reputation, which is subsequently involved in the decision to cooperate with others. Finally, we highlight the need for more experimental studies that incorporate other explanatory variables and evaluate them in new contexts.

  1. The edge of neutral evolution in social dilemmas

    International Nuclear Information System (INIS)

    Cremer, Jonas; Frey, Erwin; Reichenbach, Tobias

    2009-01-01

    The functioning of animal as well as human societies fundamentally relies on cooperation. Yet, defection is often favorable for the selfish individual, and social dilemmas arise. Selection by individuals' fitness, usually the basic driving force of evolution, quickly eliminates cooperators. However, evolution is also governed by fluctuations that can be of greater importance than fitness differences, and can render evolution effectively neutral. Here, we investigate the effects of selection versus fluctuations in social dilemmas. By studying the mean extinction times of cooperators and defectors, a variable sensitive to fluctuations, we are able to identify and quantify an emerging 'edge of neutral evolution' that delineates regimes of neutral and Darwinian evolution. Our results reveal that cooperation is significantly maintained in the neutral regimes. In contrast, the classical predictions of evolutionary game theory, where defectors beat cooperators, are recovered in the Darwinian regimes. Our studies demonstrate that fluctuations can provide a surprisingly simple way to partly resolve social dilemmas. Our methods are generally applicable to estimate the role of random drift in evolutionary dynamics.

  2. The Dilemma of Service Productivity and Service Innovation

    Science.gov (United States)

    Aspara, Jaakko; Klein, Jan F.; Luo, Xueming; Tikkanen, Henrikki

    2017-01-01

    We conduct a systematic exploratory investigation of the effects of firms’ existing service productivity on the success of their new service innovations. Although previous research extensively addresses service productivity and service innovation, this is the first empirical study that bridges the gap between these two research streams and examines the links between the two concepts. Based on a comprehensive data set of new service introductions in a financial services market over a 14-year period, we empirically explore the relationship between a firm’s existing service productivity and the firm’s success in introducing new services to the market. The results unveil a fundamental service productivity-service innovation dilemma: Being productive in existing services increases a firm’s willingness to innovate new services proactively but decreases the firm’s capabilities of bringing these services to the market successfully. We provide specific insights into the mechanism underlying the complex relationship between a firm’s productivity in existing services, its innovation proactivity, and its service innovation success. For managers, we not only unpack and elucidate this dilemma but also demonstrate that a focused customer scope and growth market conditions may enable firms to mitigate the dilemma and successfully pursue service productivity and service innovation simultaneously. PMID:29706764

  3. Between naturalism and normativity: bioethical dilemmas under the scanner

    Directory of Open Access Journals (Sweden)

    María Natalia Zavadivker

    2014-05-01

    Full Text Available This article seeks to investigate to what extent the resulting empirical data from various experiments in Moral Psychology (some behavioral, others based on evidence from neuroimaging and in patients with brain lesions associated with moral competence areas , can contribute to a better understanding of the psychological processes (cognitive and emotional underlying to our moral practical judgments, helping us to understand the mechanisms that influence our assessment of moral dilemmas in general and bioethics in particular. Various experiments are discussed (and the theoretical models that are supported that reveal aspects such as the role of disgust or repugnance in the production of moral judgments, the competitive or cooperative role of emotions and cognitions in impersonal and personal moral dilemmas -and between the above mentioned, easy and difficult-, the neurophysiological bases of deontologist and consequentialist, the value attributed to the intent and the results of action, etc. The relevance of these experiments are analyzed to understand the evaluative and deliberative processes concerning various bioethical dilemmas, for which appeals to examples of conflict situations involved and our emotional resources (that activate immediate assessment and our higher cortical areas interact (cognitive processes responsible for slower deliberative and reflexive.

  4. Conformity enhances network reciprocity in evolutionary social dilemmas.

    Science.gov (United States)

    Szolnoki, Attila; Perc, Matjaž

    2015-02-06

    The pursuit of highest payoffs in evolutionary social dilemmas is risky and sometimes inferior to conformity. Choosing the most common strategy within the interaction range is safer because it ensures that the payoff of an individual will not be much lower than average. Herding instincts and crowd behaviour in humans and social animals also compel to conformity in their own right. Motivated by these facts, we here study the impact of conformity on the evolution of cooperation in social dilemmas. We show that an appropriate fraction of conformists within the population introduces an effective surface tension around cooperative clusters and ensures smooth interfaces between different strategy domains. Payoff-driven players brake the symmetry in favour of cooperation and enable an expansion of clusters past the boundaries imposed by traditional network reciprocity. This mechanism works even under the most testing conditions, and it is robust against variations of the interaction network as long as degree-normalized payoffs are applied. Conformity may thus be beneficial for the resolution of social dilemmas. © 2014 The Author(s) Published by the Royal Society. All rights reserved.

  5. Translucent Players: Explaining Cooperative Behavior in Social Dilemmas

    Directory of Open Access Journals (Sweden)

    Valerio Capraro

    2016-06-01

    Full Text Available In the last few decades, numerous experiments have shown that humans do not always behave so as to maximize their material payoff. Cooperative behavior when non-cooperation is a dominant strategy (with respect to the material payoffs is particularly puzzling. Here we propose a novel approach to explain cooperation, assuming what Halpern and Pass call translucent players. Typically, players are assumed to be opaque, in the sense that a deviation by one player in a normal-form game does not affect the strategies used by other players. But a player may believe that if he switches from one strategy to another, the fact that he chooses to switch may be visible to the other players. For example, if he chooses to defect in Prisoner's Dilemma, the other player may sense his guilt. We show that by assuming translucent players, we can recover many of the regularities observed in human behavior in well-studied games such as Prisoner's Dilemma, Traveler's Dilemma, Bertrand Competition, and the Public Goods game.

  6. Emergence of super cooperation of prisoner's dilemma games on scale-free networks.

    Directory of Open Access Journals (Sweden)

    Angsheng Li

    Full Text Available Recently, the authors proposed a quantum prisoner's dilemma game based on the spatial game of Nowak and May, and showed that the game can be played classically. By using this idea, we proposed three generalized prisoner's dilemma (GPD, for short games based on the weak Prisoner's dilemma game, the full prisoner's dilemma game and the normalized Prisoner's dilemma game, written by GPDW, GPDF and GPDN respectively. Our games consist of two players, each of which has three strategies: cooperator (C, defector (D and super cooperator (denoted by Q, and have a parameter γ to measure the entangled relationship between the two players. We found that our generalised prisoner's dilemma games have new Nash equilibrium principles, that entanglement is the principle of emergence and convergence (i.e., guaranteed emergence of super cooperation in evolutions of our generalised prisoner's dilemma games on scale-free networks, that entanglement provides a threshold for a phase transition of super cooperation in evolutions of our generalised prisoner's dilemma games on scale-free networks, that the role of heterogeneity of the scale-free networks in cooperations and super cooperations is very limited, and that well-defined structures of scale-free networks allow coexistence of cooperators and super cooperators in the evolutions of the weak version of our generalised prisoner's dilemma games.

  7. Between professional values, social regulations and patient preferences: medical doctors' perceptions of ethical dilemmas.

    Science.gov (United States)

    Bringedal, Berit; Isaksson Rø, Karin; Magelssen, Morten; Førde, Reidun; Aasland, Olaf Gjerløv

    2018-04-01

    We present and discuss the results of a Norwegian survey of medical doctors' views on potential ethical dilemmas in professional practice. The study was conducted in 2015 as a postal questionnaire to a representative sample of 1612 doctors, among which 1261 responded (78%). We provided a list of 41 potential ethical dilemmas and asked whether each was considered a dilemma, and whether the doctor would perform the task, if in a position to do so. Conceptually, dilemmas arise because of tensions between two or more of four doctor roles: the patient's advocate, a steward of societal interests, a member of a profession and a private individual. 27 of the potential dilemmas were considered dilemmas by at least 50% of the respondents. For more than half of the dilemmas, the anticipated course of action varied substantially within the professional group, with at least 20% choosing a different course than their colleagues, indicating low consensus in the profession. Doctors experience a large range of ethical dilemmas, of which many have been given little attention by academic medical ethics. The less-discussed dilemmas are characterised by a low degree of consensus in the profession about how to handle them. There is a need for medical ethicists, medical education, postgraduate courses and clinical ethics support to address common dilemmas in clinical practice. Viewing dilemmas as role conflicts can be a fruitful approach to these discussions. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  8. Zoning Districts - Volusia County HUB Zones

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Historically Underutilized Business (HUB) Zones in Volusia County. Go to http://www.sba.gov/hubzone or contact the Department of Economic Development (386) 248-8048...

  9. Using an Ethical Decision-Making Model to Address Ethical Dilemmas in School Counseling

    Science.gov (United States)

    Brown, Timothy; Armstrong, Stephen A.; Bore, Samuel; Simpson, Chris

    2017-01-01

    School counselors frequently face ethical dilemmas. These dilemmas often involve relationships with principals, parents, and other stakeholders. School counselors may confront complex ethical issues involving confidentiality, student safety, parental rights,and social media. The American School Counselor Association recommends following an ethical…

  10. Reading Dilemmas in a Foreign Language Reduces Both Deontological and Utilitarian Response Tendencies

    Science.gov (United States)

    Muda, Rafal; Niszczota, Pawel; Bialek, Michal; Conway, Paul

    2018-01-01

    Moral dilemmas entail deciding whether to cause harm to maximize overall outcomes, such as killing 1 person to save 5. Past work has demonstrated that people are more willing to accept causing such outcome-maximizing harm when they read dilemmas in a foreign language they speak rather than their native language. Presumably this effect is due to…

  11. Teaching Literature and Literacy in the Eye of Reform: A Dilemma in Three Acts.

    Science.gov (United States)

    Florio-Ruane, Susan; Berne, Jennifer; Raphael, Taffy E.

    2001-01-01

    Tells a story of crossing borders in support of dilemma management in the teaching of literature. Discusses working together to manage dilemmas in literacy and teacher education. Sketches the genealogy of a network of teachers from across the southeast region of Michigan. Focuses on the teachers working in the "eye of reform" at an…

  12. Ethical Leadership and Moral Literacy: Incorporating Ethical Dilemmas in a Case-­Based Pedagogy

    Science.gov (United States)

    Jenlink, Patrick M.; Jenlink, Karen Embry

    2015-01-01

    In this paper the authors examine an ethical dilemma approach to case-based pedagogy for leadership preparation, which was used in a doctoral studies program. Specifically, the authors argue that preparing educational leaders for the ethical dilemmas and moral decision-making that define schools requires assessing current programs and pedagogical…

  13. The Disruptor’s Dilemma: TiVo and the U.S. Television Ecosystem

    NARCIS (Netherlands)

    S.M. Ansari (Shahzad); R. Garud (Raghu); A. Kumaraswamy (Arun)

    2016-01-01

    textabstractFirms introducing disruptive innovations into multisided ecosystems may confront the disruptor’s dilemma – they must gain the support of the very incumbents they disrupt. We examine how these firms may address this dilemma through a longitudinal study of TiVo, a company that pioneered

  14. Ethical Dilemmas in Qualitative Research Methodology: Researcher's Reflections

    Science.gov (United States)

    Ngozwana, Nomazulu

    2018-01-01

    This article examines the ethical dilemmas that are specific to qualitative research methodology. These dilemmas concern the issues of withdrawal from the study, anonymity and confidentiality, which are discussed. Each aspect examines how it was dealt with using the researcher's reflections. The research was positioned within an interpretive…

  15. Exploratory Study of Common and Challenging Ethical Dilemmas Experienced by Professional School Counselors

    Science.gov (United States)

    Bodenhorn, Nancy

    2006-01-01

    Results of a survey asking public school counselors in Virginia to indicate their most common and most challenging ethical dilemmas are presented. Ninety-two school counselors reported that the most common and challenging ethical dilemmas included those involving student confidentiality, dual relationship with faculty, parental rights, and acting…

  16. A Model for Making Decisions about Ethical Dilemmas in Student Assessment

    Science.gov (United States)

    Johnson, Robert L.; Liu, Jin; Burgess, Yin

    2017-01-01

    In this mixed-methods study we investigated the development of a generalized ethics decision-making model that can be applied in considering ethical dilemmas related to student assessment. For the study, we developed five scenarios that describe ethical dilemmas associated with student assessment. Survey participants (i.e., educators) completed an…

  17. A Survey of Current and Projected Ethical Dilemmas of Rehabilitation Counselors

    Science.gov (United States)

    Hartley, Michael T.; Cartwright, Brenda Y.

    2016-01-01

    Purpose: This study surveyed current and projected ethical dilemmas of rehabilitation counselors. Method: As a mixed-methods approach, the study used both quantitative and qualitative analyses. Results: Of the 211 participants who completed the survey, 116 (55.0%) reported an ethical dilemma. Based on the descriptions, common themes involved roles…

  18. Experienced Speech-Language Pathologists' Responses to Ethical Dilemmas: An Integrated Approach to Ethical Reasoning

    Science.gov (United States)

    Kenny, Belinda; Lincoln, Michelle; Balandin, Susan

    2010-01-01

    Purpose: To investigate the approaches of experienced speech-language pathologists (SLPs) to ethical reasoning and the processes they use to resolve ethical dilemmas. Method: Ten experienced SLPs participated in in-depth interviews. A narrative approach was used to guide participants' descriptions of how they resolved ethical dilemmas. Individual…

  19. Action ethical dilemmas in surgery: an interview study of practicing surgeons

    Directory of Open Access Journals (Sweden)

    Nordam Ann

    2005-07-01

    Full Text Available Abstract Background The aim of this study was to describe the kinds of ethical dilemmas surgeons face during practice. Methods Five male and five female surgeons at a University hospital in Norway were interviewed as part of a comprehensive investigation into the narratives of physicians and nurses about ethically difficult situations in surgical units. The transcribed interview texts were subjected to a phenomenological-hermeneutic interpretation. Results No gender differences were found in the kinds of ethical dilemmas identified among male and female surgeons. The main finding was that surgeons experienced ethical dilemmas in deciding the right treatment in different situations. The dilemmas included starting or withholding treatment, continuing or withdrawing treatment, overtreatment, respecting the patients and meeting patients' expectations. The main focus in the narratives was on ethical dilemmas concerning the patients' well-being, treatment and care. The surgeons narrated about whether they should act according to their own convictions or according to the opinions of principal colleagues or colleagues from other departments. Handling incompetent colleagues was also seen as an ethical dilemma. Prioritization of limited resources and following social laws and regulations represented ethical dilemmas when they contradicted what the surgeons considered was in the patients' best interests. Conclusion The surgeons seemed confident in their professional role although the many ethical dilemmas they experienced in trying to meet the expectations of patients, colleagues and society also made them professionally and personally vulnerable.

  20. Making dilemmas explicit through the use of a cognitive mapping collaboration tool

    NARCIS (Netherlands)

    Matos Castano, Julieta; van Amstel, Frederick; Hartmann, Timo; Dewulf, Geert

    2017-01-01

    Dilemmas are pervasive in decision making. Although they offer the potential of reflecting on issues at stake from different perspectives, dilemmas often lead to paralysis for those encountering them. This study presents a three dimensional collaboration tool specifically developed to surface

  1. Perceptions of the Dilemma--Order versus Freedom at Managing Faculty: A Literature Review

    Science.gov (United States)

    Karaferye, Figen; Agaoglu, Esmahan

    2017-01-01

    This study aims to examine the perceptions of the middle management (deans and heads of departments) and academicians on the dilemma order versus freedom at faculty management. It discusses how this dilemma is seen at an operational level and how it can be managed at university where both parties--with a managerial role or not--are…

  2. How Culture Matters in Educational Borrowing? Chinese Teachers' Dilemmas in a Global Era

    Science.gov (United States)

    Liu, Sheng-nan; Feng, Da-ming

    2015-01-01

    Educational borrowing may cause numerous dilemmas that emerge from cross-cultural differences among teachers in the globalization. Through the case study on the flipped classroom introduced from the United States into Chinese middle schools, this article presents an examination of dilemmas that teachers encountered during educational borrowing in…

  3. Comparison of Ethical Dilemmas across Public and Private Sectors in Rehabilitation Counseling Practice

    Science.gov (United States)

    Beveridge, Scott; Garcia, Jorge; Siblo, Matt

    2015-01-01

    Purpose: To examine the nature of ethical dilemmas most frequently reported by rehabilitation counselors in the private and public sectors and determine if significant differences exist in how practitioners experience ethical dilemmas in these two settings. Method: A mixed-methods internet-based survey design was utilized and included descriptive,…

  4. School Leaders' Dilemmas and Measures to Instigate Changes for Inclusive Education in Hong Kong

    Science.gov (United States)

    Poon-McBrayer, Kim Fong

    2017-01-01

    The roles of principal leadership in change management have long been documented. The key concern to examine in this study was the dilemmas and measures confronting principals' when they led changes to instigate inclusive education in Hong Kong. Thus, this paper aims to report sources of dilemmas and how principals tackled them in the change…

  5. Learning from dilemmas: teacher professional development through collaborative action and reflection

    NARCIS (Netherlands)

    Pareja Roblin, N.N.; Margalef, L.

    2013-01-01

    This article aims at describing and analysing the interpersonal and intrapersonal dilemmas experienced by a group of five university teachers as they engaged in collaborative inquiry, including the ways in which teachers managed these dilemmas and how this contributed to their professional

  6. Transparency dilemmas, information technology and alliances in agriculture and food industry

    NARCIS (Netherlands)

    Dijk, van S.J.; Duysters, G.M.; Beulens, A.J.M.

    2004-01-01

    This working paper will present a detailed overview of transparency dilemmas in interorganizational forms of cooperation (i.e., alliances) in Dutch agriculture and food industry. The overview of dilemmas and related alliance factors are based on a literature research and analysis of two

  7. Theory Ain't Practice: Four Novice Researchers Navigate Dilemmas of Representation within Immigrant Populations

    Science.gov (United States)

    Aleixo, Marina; Hansen, Sarah; Horii, Sachiko; Un, Silvy

    2014-01-01

    This article illuminates instances in which four graduate students have struggled with issues of representation--of themselves and of immigrant participants--at their research sites and in their writing. These dilemmas are situated within the literature on the politics of representation in qualitative research. Although these dilemmas are not…

  8. Ethical Dilemmas on Social Media: Swedish Secondary Teachers' Boundary Management on Facebook

    Science.gov (United States)

    Thunman, Elin; Persson, Marcus

    2018-01-01

    With the aim of contributing to the research about the educational use of social media, the paper explores teachers' experiences of ethical dilemmas on Facebook. The paper draws upon focus group interviews with Swedish secondary teachers. Two main categories of ethical dilemmas, related to the border between private and professional, are detected.…

  9. De-Marginalizing Science in the Elementary Classroom by Coaching Teachers to Address Perceived Dilemmas

    Science.gov (United States)

    Berg, Alissa; Mensah, Felicia Moore

    2014-01-01

    This study identifies and explores the dilemmas experienced by three first-grade teachers in teaching elementary school science. The impact of coaching and teachers' career stages on how teachers reconcile their dilemmas was examined. Results of this comparative case study indicate teachers perceived tensions between focusing instructional…

  10. Ethical dilemmas encountered by small animal veterinarians: characterisation, responses, consequences and beliefs regarding euthanasia.

    Science.gov (United States)

    Kipperman, Barry; Morris, Patricia; Rollin, Bernard

    2018-05-12

    Small animal veterinarians' opinions were investigated regarding the frequency and nature of ethical dilemmas encountered, beliefs regarding euthanasia and balancing client and animal interests, prevalence and value of ethics training and proposals to mitigate the stressful effects of ethical dilemmas. The majority (52 per cent) of 484 respondents in the USA indicated via an online survey experiencing an ethical dilemma regarding the interests of clients and those of their patients at least weekly. Scenarios involving client financial concerns were commonly reported causes of ethical conflicts. While only 20 per cent of respondents indicated that other practitioners prioritise patient interests, 50 per cent of respondents characterised their own behaviour as prioritising patients. Most respondents (52 per cent) reported that ethical dilemmas are the leading cause, or are one of many equal causes, of work-related stress. Less experienced practitioners, general practitioners and associate veterinarians were more likely to encounter situations they defined as ethical dilemmas, and female respondents were more likely to find ethical dilemmas stressful. Most small animal veterinarians experience ethical dilemmas regularly, which contribute to moral stress. Results suggested that most small animal practitioners believe that greater awareness of moral stress and providing training in ethical theories and tools for coping with ethical dilemmas can ameliorate moral stress. © British Veterinary Association (unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  11. Therapeutic risk management of clinical-legal dilemmas: should it be a core competency?

    Science.gov (United States)

    Simon, Robert I; Shuman, Daniel W

    2009-01-01

    Therapeutic risk management of clinical-legal dilemmas achieves an optimal alignment between clinical competence and an understanding of legal concerns applicable to psychiatric practice. Understanding how psychiatry and law interact in frequently occurring clinical situations is essential for effective patient care. Successful management of clinical-legal dilemmas also avoids unnecessary, counterproductive defensive practices.

  12. Designing and Introducing Ethical Dilemmas into Computer-Based Business Simulations

    Science.gov (United States)

    Schumann, Paul L.; Scott, Timothy W.; Anderson, Philip H.

    2006-01-01

    This article makes two contributions to the teaching of business ethics literature. First, it describes the steps involved in developing effective ethical dilemmas to incorporate into a computer-based business simulation. Second, it illustrates these steps by presenting two ethical dilemmas that an instructor can incorporate into any business…

  13. Teaching the Repeated Prisoner's Dilemma with a Non-Computerised Adaptation of Axelrod's Tournament

    Science.gov (United States)

    Dennis, Catherine

    2015-01-01

    Darwin's theory of evolution is explicitly competitive, yet co-operation between individuals is a common phenomenon. The Prisoner's Dilemma model is central to the teaching of the evolution of co-operation. The best-known explorations of the Prisoner's Dilemma are the tournaments run by Robert Axelrod in the 1980s. Aimed at students of biological…

  14. A Sociology "of" or a Sociology "for" Education? The New Zealand Experience of the Dilemma

    Science.gov (United States)

    Rata, Elizabeth

    2010-01-01

    The sociology of education in New Zealand, as in other countries, is affected by the dilemma inherent to the discipline, namely: is it a sociology "of" education or a sociology "for" education? In this article I analyse three factors in which the dilemma is played out: "cultural oppositionism" in the indigenous…

  15. Subjective Theories of Indonesian Agronomy and Biology Teacher Students on Environmental Commons Dilemmas

    Science.gov (United States)

    Koch, Sebastian; Barkmann, Jan; Sundawati, Leti; Bogeholz, Susanne

    2013-01-01

    Fostering the cognitive skills to analyse environmental "commons dilemmas" is an urgent task of environmental education globally. Commons dilemmas are characterised by structural incentives to overexploit a natural resource; their solution is particularly pressing in threatened biodiversity "hotspot" areas. Solutions to these…

  16. Mass Customization in Schools: Strategies Dutch Secondary Schools Pursue to Cope with the Diversity-Efficiency Dilemma

    Science.gov (United States)

    Waslander, Sietske

    2007-01-01

    Faced with the diversity-efficiency dilemma, private companies apply "mass customization" strategies to add diversity without adding costs. As schools are urged to become more "customer oriented" they also face a diversity-efficiency dilemma. This article asks how Dutch secondary schools cope with this dilemma and to what…

  17. Dilemmas for international mobilization around child abuse and neglect.

    Science.gov (United States)

    Finkelhor, David; Lannen, Patricia

    2015-12-01

    The goal of this commentary is to articulate some issues and dilemmas raised by various efforts to mobilize international action around child abuse and neglect (CAN). We will start by proposing a typology of international mobilization strategies, noting that initiatives to promote CAN programming in new settings have tended to emphasize one of three vectors: governments, professionals, or international NGOs. There are pros and cons to each emphasis, which we discuss. We also review the debates around some of the following dilemmas: Should low-income countries be a top priority for CAN mobilization? Are there cultural and institutional capacities that need to be present in a country in order for CAN programs to work or be ethical? Are some CAN programs more likely to be internationally transferable than others and why so? Has the field adequately considered whether non-CAN programming (e.g., family planning) might actually be more effective at preventing maltreatment than CAN programming? Does the field give adequate acknowledgment that policies and practices emanating from high-resourced and Western countries may not always be the best to disseminate? Are we relying too much on a model of program transplantation over a model of local cultivation? Should we aim for modest rather than ambitious accomplishments in international mobilization? How much emphasis should be placed on the priority dissemination of evidence-based programming? We conclude with some suggestions in the service of clarifying these dilemmas and making some of these decisions more evidence based. Copyright © 2014 Elsevier Ltd. All rights reserved.

  18. The Dilemmas over Credit Policy Management in a Company

    Directory of Open Access Journals (Sweden)

    Maria Gorczyńska

    2013-11-01

    Full Text Available Purpose of the article: The paper identifies the core dilemmas over the establishment of the credit policy in a company. It considers the general scope and basic stages of credit policy management and analyses each stage of credit policy in terms of decisive aspects. The main areas of concerns are discussed within the settlement of credit policy and its implementation with regard to the model of optimal credit policy. Scientific aim: The paper aims at constructing a unified model of issues rising dilemmas while setting and implementing the credit policy management. It also aims at identifying core decisive problems in each of these fields and at providing a structured questions framework. Methodology/methods: The paper is based on conceptual analysis and deduction of the literature and general review of issues related to credit policy management. It containts autors’ own view on the problems included in each stage of credit policy management. Findings: Credit policy management is a subject for numerous dilemmas. The main areas of concerns are related to: the decision about the goal of credit policy managemet with regard to its restrictiveness, the settlement of credit policy with regard to elements of credit policy, and finally the implementation with regard to the risk of bad debts occurrence. Conclusions: (limits, implications etc The establishment of credit policy in a company requires to balance contrary interests and thus involves wide variety of issues to be considered. The presented model of decisive problems might be applied in each company regardless to their size.

  19. Dilemma-focused intervention for unipolar depression: a treatment manual.

    Science.gov (United States)

    Feixas, Guillem; Compañ, Victoria

    2016-07-12

    This article introduces a new treatment protocol for depression. Based on previous research which indicated the presence of cognitive conflicts in depression, this study created an intervention manual to address these conflicts. The therapy manual for depressive patients followed the guideline for inclusion in clinical trials (stage II), which has received high recognition. A preliminary version (stage I) of this manual was formulated based on other, more general dilemma-focused therapy publications, inspired by personal construct theory (PCT), and input from clinical experience. The resulting version was then applied during the 8-session format of a pilot study with patients diagnosed with major depressive disorder or dysthymia. Finally, feedback was requested from seasoned and highly respected therapists, some of whom were familiar with PCT. According to the mentioned guideline, the intervention manual selected the theoretical framework, in this case PCT, to include its conceptualization of depression and resolution of dilemmas (to foster clinical improvement) as a main treatment goal. The manual was then contrasted with psychoanalytic psychotherapy, cognitive-behavior therapy (CBT), motivational interviewing (MI), and other similar approaches such as cognitive-analytic therapy and coherence therapy. Following these conceptual clarifications, the specific interventions included in the manual were defined according to both categories: their unique and essential components and those conceived as common psychotherapeutic factors. Next, the general structure and content for each session were presented. The structure consisted of seven well-defined individual sessions with an additional session, which could complement any of the former sessions to address the patient's issues in greater depth, if needed. This Dilemma-Focused Intervention manual aimed to improve the treatment outcome for depression by offering an intervention that could be combined with other general

  20. Learning Environment at Work: Dilemmas Facing Professional Employees

    DEFF Research Database (Denmark)

    Andersen, Vibeke; Andersen, Anders Siig

    2007-01-01

    In an effort to increase efficiency and democracy, the modernozation of the public sector has involved an increase in market and user control, an increased application of technology, a decentralization of responsibilities and competencies, and more management and personnel development initiatives....... The article analyze the learning environment in two govermental worksites in Denmark and shows how professional employees respond to the dilemmas posed by modernization at work.......In an effort to increase efficiency and democracy, the modernozation of the public sector has involved an increase in market and user control, an increased application of technology, a decentralization of responsibilities and competencies, and more management and personnel development initiatives...

  1. Employee recruitment outsourcing in Bangladesh: An ethical dilemma

    Directory of Open Access Journals (Sweden)

    Maksuda Hossain

    2018-04-01

    Full Text Available The present paper focuses on the ethical issues resulting from recruitment outsourcing in Bangladesh. It is a case based explorative study. Besides secondary data, both outsourced employees and employers who engage in outsourcing for their organization were interviewed to reach the valid data. Poor salary and benefit structure of the outsourced employees, different folded discrimination between in-house and outsourced employees, employee poaching from the competitors with the help of 3rd parties are some of the findings of the study that are creating ethical dilemma for organizations and employees as well. Both from the demographic perspective and subject matter the study is original one.

  2. Complete Brachial Plexus Injury - An Amputation Dilemma. A Case Report

    Directory of Open Access Journals (Sweden)

    Choong CYL

    2015-11-01

    Full Text Available Brachial plexus injuries with intact yet flail limb presents with problems of persistent neuropathic pain and recurrent shoulder dislocations, that render the flail limb a damn nuisance. As treating surgeons, we are faced with the dilemma of offering treatment options, bearing in mind the patient’s functional status and expectations. We present a case of a 55-year old housewife with complete brachial plexus injury begging for surgical amputation of her flail limb, 6 years post-injury. Here we discuss the outcome of transhumeral amputation and the possibility of offering early rather than delayed amputations in this group of patients.

  3. Spatial prisoner's dilemma optimally played in small-world networks

    International Nuclear Information System (INIS)

    Masuda, Naoki; Aihara, Kazuyuki

    2003-01-01

    Cooperation is commonly found in ecological and social systems even when it apparently seems that individuals can benefit from selfish behavior. We investigate how cooperation emerges with the spatial prisoner's dilemma played in a class of networks ranging from regular lattices to random networks. We find that, among these networks, small-world topology is the optimal structure when we take into account the speed at which cooperative behavior propagates. Our results may explain why the small-world properties are self-organized in real networks

  4. Neurofibromatosis-Noonan syndrome or LEOPARD Syndrome? A clinical dilemma.

    Directory of Open Access Journals (Sweden)

    Tullu M

    2000-04-01

    Full Text Available Neurofibromatosis (NF, Noonan syndrome (NS, and LEOPARD syndrome are all autosomal dominant conditions, each being a distinct clinical entity by itself. Rarely, one encounters cases with features of NF and NS and is termed as the ′Neurofibromatosis-Noonan syndrome′ (NF-NS. The authors report a clinical dilemma with major clinical features of the NF-NS syndrome and LEOPARD syndrome co-existing in the same patient. Also, features of Noonan syndrome and LEOPARD syndrome are compared with the case reported.

  5. Quantum solutions for Prisoner's Dilemma game with general parameters

    International Nuclear Information System (INIS)

    Sun, Z.W.; Jin, H.; Zhao, H.

    2008-01-01

    The quantum game of the Prisoner's Dilemma with general payoff matrix was studied in L. Marinatto and T. Weber's scheme presented in [Phys. Lett. A 272 (2000) 291, so that the results of two schemes of the quantum game can be compared. The Nash equilibria and the solutions of the game are obtained. They are related to initial state, matrix parameters and the intervals among the parameters. It can be concluded from the results that the quantum PD game in Marinatto and Weber's scheme matches the one in Eisert et al.'s scheme, one with general unitary operations.

  6. China's energy security, the Malacca dilemma and responses

    International Nuclear Information System (INIS)

    Zhang Zhongxiang

    2011-01-01

    China's rapid economic growth has led to a huge increase in oil imports. This has raised great concern regarding its energy security because China depends on a single chokepoint, the Strait of Malacca, with nearly three-quarters of its oil imports flowing through the Strait. Given its strategic importance to China and China's little sway on the waterway, this viewpoint focuses mainly on China's concerns about and efforts at both demand and supply sides towards energy security, in particular regarding the Malacca dilemma, and puts potential Arctic oil and gas into that context.

  7. Quantum Prisoners' Dilemma in Fluctuating Massless Scalar Field

    Science.gov (United States)

    Huang, Zhiming

    2017-12-01

    Quantum systems are easily affected by external environment. In this paper, we investigate the influences of external massless scalar field to quantum Prisoners' Dilemma (QPD) game. We firstly derive the master equation that describes the system evolution with initial maximally entangled state. Then, we discuss the effects of a fluctuating massless scalar field on the game's properties such as payoff, Nash equilibrium, and symmetry. We find that for different game strategies, vacuum fluctuation has different effects on payoff. Nash equilibrium is broken but the symmetry of the game is not violated.

  8. Kantian dilemmas? Moral conflict in Kant’s ethical theory

    OpenAIRE

    Timmermann, Jens

    2013-01-01

    This paper explores the possibility of moral conflict in Kant’s ethics. An analysis of the only explicit discussion of the topic in his published writings confirms that there is no room for genuine moral dilemmas. Conflict is limited to nonconclusive ‘grounds’ of obligation. They arise only in the sphere of ethical duty and, though defeasible, ought to be construed as the result of valid arguments an agent correctly judges to apply in the situation at hand. While it is difficult to determine ...

  9. Active Player Modeling in the Iterated Prisoner's Dilemma

    OpenAIRE

    Park, Hyunsoo; Kim, Kyung-Joong

    2016-01-01

    The iterated prisoner’s dilemma (IPD) is well known within the domain of game theory. Although it is relatively simple, it can also elucidate important problems related to cooperation and trust. Generally, players can predict their opponents’ actions when they are able to build a precise model of their behavior based on their game playing experience. However, it is difficult to make such predictions based on a limited number of games. The creation of a precise model requires the use of not on...

  10. The global development race and the Samaritan's dilemma

    DEFF Research Database (Denmark)

    Svendsen, Gunnar Lind Haase; Gert Tinggaard, Svendsen

    2008-01-01

    Why has ‘development aid' been donated by so-called developed to under-developed populations since World War II? Using discourse analysis, this article provides partial answers to this riddle. First, we suggest that donor motives may be rooted in an ideology of ‘being good' which, paradoxically......, motivates recipients to be helpless, i.e. a Samaritan's Dilemma. Second, drawing on journal articles from 1960-1970, we test this theory by tracing a global development discourse and ‘goodness ideology' in a Western country like Denmark - a process that was strongly influenced by the agricultural co...

  11. Rapidly enlarging renal tumor during pregnancy: diagnostic and management dilemma

    Directory of Open Access Journals (Sweden)

    Kor Wei Tiang

    2014-04-01

    Full Text Available Urological tumors diagnosed during pregnancy are rare. However, the incidence seems to be increasing largely due to advancements in modern imaging techniques and improved antenatal care. The diagnosis and management of renal tumors during pregnancy poses a dilemma to clinicians. This case report highlights the challenges in managing a large chromophobe renal cell carcinoma in a young primigravida patient. Proper antenatal assessment, a multidisciplinary team approach and appropriate discussion with patient are important determinants to achieve the best clinical outcomes for both the mother and the baby. 

  12. Dilemmaer i musikterapeutisk behandling af en traumatiseret flygtning med musikerbaggrund

    Directory of Open Access Journals (Sweden)

    Bolette Daniels Beck

    2016-12-01

    Full Text Available Denne artikel præsenterer et single case-studie af et receptivt musikterapiforløb med en 55-årig syrisk flygtning, som har været udsat for fængsling og tortur på grund af sine aktiviteter som protestsanger og musiker. Der beskrives problemstillinger og dilemmaer relateret til at anvende musik, der både kan trigge traumer, men også vække indre ressourcer. Kortlægning af patientens forskellige personlighedsdele og musikkens evne til integration af dem vil blive belyst gennem teorien om strukturel dissociation.

  13. Fire in the forest: The air quality dilemma

    International Nuclear Information System (INIS)

    Core, J.E.

    1992-01-01

    Fire has long been an important tool of forest land managers. Air regulators responsible for assuring that the provisions of the Clean Air Act are met, see smoke from forest land burning as just another source of air pollution. From an air quality standpoint, pollutants released by forestry burning practices are no different than those emitted from other sources since smoke is smoke, regardless of whether it comes from a woodstove, a wood products industry stack, agricultural burning, or forestry land management. This paper discusses the dilemma that air quality and forest land managers face when balancing air quality protection with the role of fire in the forest

  14. Orthokeratinized odontogenic keratocyst crossing mandibular midline: A diagnostic dilemma

    Directory of Open Access Journals (Sweden)

    Kapil Kshirsagar

    2014-01-01

    Full Text Available Orthokeratinized odontogenic keratocyst is a less-aggressive non-syndromic variant of odontogenic keratocyst (OKC. In this case report, we are highlighting an unusual presentation of OKC with paresthesia, non-vital teeth, and minimal cortical expansion. The radiograph of the patient revealed a radiolucency crossing the midline in the anterior mandible. This manuscript discusses a case which presented as a diagnostic dilemma due to variable clinical and radiological features mimicking different pathologies occurring in the anterior mandible. We have discussed various clinical and radiographic differential diagnoses of the same.

  15. Feminist dilemmas and the agency of veiled Muslim women

    DEFF Research Database (Denmark)

    Chapman, Madeleine

    2015-01-01

    This article addresses dilemmas of agency for feminism through reflections on social psychological research on the role of representations in the construction of identity by Muslim women. Engaging first with Saba Mahmood’s account of religious subjectivities in Politics of Piety (2005), the author...... argues that feminist research requires a social conception of agency that addresses dialogical dynamics of representation and identity. Drawing on research concerning veiling and identity among Muslim women in the UK and Denmark, the author shows how a social conception of agency may be elaborated...

  16. Towards stacked zone plates

    International Nuclear Information System (INIS)

    Werner, S; Rehbein, S; Guttman, P; Heim, S; Schneider, G

    2009-01-01

    Fresnel zone plates are the key optical elements for soft and hard x-ray microscopy. For short exposure times and minimum radiation load of the specimen the diffraction efficiency of the zone plate objectives has to be maximized. As the efficiency strongly depends on the height of the diffracting zone structures the achievable aspect ratio of the nanostructures determines these limits. To reach aspect ratios ≥ 20:1 for high efficient optics we propose to superimpose zone plates on top of each other. With this multiplication approach the final aspect ratio is only limited by the number of stacked zone plate layers. For the stack process several nanostructuring process steps have to be developed and/or improved. Our results show for the first time two layers of zone plates stacked on top of each other.

  17. ZoneLib

    DEFF Research Database (Denmark)

    Jessen, Jan Jacob; Schiøler, Henrik

    2006-01-01

    We present a dynamic model for climate in a livestock building divided into a number of zones, and a corresponding modular Simulink library (ZoneLib). While most literature in this area consider air flow as a control parameter we show how to model climate dynamics using actual control signals...... development of ZoneLib....

  18. Reasoning from an incompatibility: False dilemma fallacies and content effects.

    Science.gov (United States)

    Brisson, Janie; Markovits, Henry; Robert, Serge; Schaeken, Walter

    2018-03-23

    In the present studies, we investigated inferences from an incompatibility statement. Starting with two propositions that cannot be true at the same time, these inferences consist of deducing the falsity of one from the truth of the other or deducing the truth of one from the falsity of the other. Inferences of this latter form are relevant to human reasoning since they are the formal equivalent of a discourse manipulation called the false dilemma fallacy, often used in politics and advertising in order to force a choice between two selected options. Based on research on content-related variability in conditional reasoning, we predicted that content would have an impact on how reasoners treat incompatibility inferences. Like conditional inferences, they present two invalid forms for which the logical response is one of uncertainty. We predicted that participants would endorse a smaller proportion of the invalid incompatibility inferences when more counterexamples are available. In Study 1, we found the predicted pattern using causal premises translated into incompatibility statements with many and few counterexamples. In Study 2A, we replicated the content effects found in Study 1, but with premises for which the incompatibility statement is a non-causal relation between classes. These results suggest that the tendency to fall into the false dilemma fallacy is modulated by the background knowledge of the reasoner. They also provide additional evidence on the link between semantic information retrieval and deduction.

  19. Assisted or Hastened Death: The Healthcare Practitioner’s Dilemma

    Science.gov (United States)

    MacLeod, Rod D; Wilson, Donna M; Malpas, Phillipa

    2012-01-01

    Assisting or hastening death is a dilemma with many ethical as well as practical issues facing healthcare practitioners in most countries worldwide now. Various arguments for and against assisted dying have been made over time but the call from the public for the legalisation of euthanasia and assisted suicide has never been stronger. While some studies have documented the reluctance of medical and other healthcare professionals to be involved in the practice of assisted dying or euthanasia, there is still much open debate in the public domain. Those who have the most experience of palliative care are strongest in their opposition to hastening death. This paper explores salient practical and ethical considerations for healthcare practitioners associated with assisting death, including a focus on examining the concepts of autonomy for patients and healthcare practitioners. The role of the healthcare practitioner has clearly and undoubtedly changed over time with advances in healthcare practices but the duty of care has not changed. The dilemmas for healthcare practitioners thus who have competent patients requesting hastened death extends far beyond acting within a country’s laws as they go to the very heart of the relationship between the practitioner and patient. PMID:23121745

  20. Determination of Onramp Weaving Length for Resolving Merging Dilemma

    Directory of Open Access Journals (Sweden)

    Chiu Liu

    2012-03-01

    Full Text Available It is physically known that onramp merging may turn out to be difficult if the onramp (weaving/merging length is too short because a driver under certain driving circumstances may find that either merging ahead or merging behind a neighboring vehicle on the adjacent highway lane cannot be completed. Various existing guidelines or design manuals provide no clear physical understanding and explanations to the design onramp weaving length but often based on evolved empirical experiences. By integrating human factors, vehicle dynamic characteristics, roadway surface condition, and the onramp weaving design into a single unified analytic framework, the onramp length required for a driver to merge into the highway traffic successfully is determined exactly with formulas and physical solutions to avoid the merging dilemma and enhance driving safety at highway interchanges. The design onramp weaving length is examined and evaluated with various foreseeable merging scenarios and physical examples. This analytic framework sheds light on the understanding of the onramp weaving the first time strictly on a physical human-vehicle-roadway interaction setting. Practitioners can easily apply these user friendly formulae and equations derived from the unified framework to calculate the onramp weaving length to resolve the merging dilemma and enhance driving safety for any highway interchanges.

  1. Bayesian analysis of deterministic and stochastic prisoner's dilemma games

    Directory of Open Access Journals (Sweden)

    Howard Kunreuther

    2009-08-01

    Full Text Available This paper compares the behavior of individuals playing a classic two-person deterministic prisoner's dilemma (PD game with choice data obtained from repeated interdependent security prisoner's dilemma games with varying probabilities of loss and the ability to learn (or not learn about the actions of one's counterpart, an area of recent interest in experimental economics. This novel data set, from a series of controlled laboratory experiments, is analyzed using Bayesian hierarchical methods, the first application of such methods in this research domain. We find that individuals are much more likely to be cooperative when payoffs are deterministic than when the outcomes are probabilistic. A key factor explaining this difference is that subjects in a stochastic PD game respond not just to what their counterparts did but also to whether or not they suffered a loss. These findings are interpreted in the context of behavioral theories of commitment, altruism and reciprocity. The work provides a linkage between Bayesian statistics, experimental economics, and consumer psychology.

  2. For data's sake: dilemmas in the measurement of gender minorities.

    Science.gov (United States)

    Glick, Jennifer L; Theall, Katherine; Andrinopoulos, Katherine; Kendall, Carl

    2018-03-13

    Gender-minority health disparity research is limited by binary gender measurement practices. This study seeks to broaden current discourse on gender identity measurement in the USA, including measurement adoption challenges and mitigation strategies, thereby allowing for better data collection to understand and address health disparities for people of all genders. Three data sources were used to triangulate findings: expert interviews with gender and sexuality research leaders; key-informant interviews with gender minorities in New Orleans, LA; and document analysis of relevant surveys, guides and commentaries. Ten key dilemmas were identified: 1) moving beyond binary gender construction; 2) conflation of gender, sex and sexual orientation; 3) emerging nature of gender-related language; 4) concerns about item sensitivity; 5) research fatigue among gender minorities; 6) design and analytical limitations; 7) categorical and procedural consistency; 8) pre-populated vs. open-field survey items; 9) potential misclassification; and 10) competing data collection needs. Researchers must continue working toward consensus concerning better practices is gender measurement and be explicit about their methodological choices. The existence of these dilemmas must not impede research on important health issues affecting gender minorities.

  3. The use of moral dilemmas for teaching agricultural engineers.

    Science.gov (United States)

    Lozano, J Félix; Palau-Salvador, Guillermo; Gozálvez, Vincent; Boni, Alejandra

    2006-04-01

    Agricultural engineers' jobs are especially related to sustainability and earth life issues. They usually work with plants or animals, and the aim of their work is often linked to producing food to allow people to improve their quality of life. Taking into account this dual function, the moral requirements of their day-to-day professional practice are arguably greater than those of other professions. Agricultural engineers can develop their ability to live up to this professional responsibility by receiving ethical training during their university studies, not only by taking courses specifically devoted to ethics, but also by having to deal with moral questions that are integrated into their technical courses through a program of Ethics Across the Curriculum (EAC). The authors feel that a suitable pedagogical technique for achieving this goal is the use of moral dilemmas, following Kohlberg's theory of levels of morality (1981), with the final objective of attaining a post-conventional level. This paper examines the possibilities and limitations of using moral dilemmas as a pedagogical technique for training agricultural engineers. The cases, discussions, and evaluation used in the Agricultural Engineering Department of the Technical University of Valencia (Spain) are also presented.

  4. Noise-induced enhancement of network reciprocity in social dilemmas

    International Nuclear Information System (INIS)

    Zhang, Gui-Qing; Sun, Qi-Bo; Wang, Lin

    2013-01-01

    Highlights: • We introduce the noise-induced mechanism into the prisoner’s dilemma game. • Cooperation will be largely enhanced by introducing the noise into the calculation of fitness. • Despite the defectors prevail initially, the stressed factor still promotes the cooperation. • The mechanism studied here is helpful on different kinds of interaction networks. -- Abstract: The network reciprocity is an important dynamic rule fostering the emergence of cooperation among selfish individuals. This was reported firstly in the seminal work of Nowak and May, where individuals were arranged on the regular lattice network, and played the prisoner’s dilemma game (PDG). In the standard PDG, one often assumes that the players have perfect rationality. However, in reality, we human are far from rational agents, as we often make mistakes, and behave irrationally. Accordingly, in this work, we introduce the element of noise into the measurement of fitness, which is determined by the parameter α controlling the degree of noise. The considered noise-induced mechanism remarkably promotes the behavior of cooperation, which may be conducive to interpret the emergence of cooperation within the population

  5. End-of-life ethical dilemmas in intensive care unit

    Directory of Open Access Journals (Sweden)

    Štefan Grosek

    2013-10-01

    Full Text Available Sustaining vital functions in critically ill in the ICU frequently allows prolongation of patient’s life even in circumstances where the treatment has lost its medical rationale and/or there is no hope for the patient’s condition to improve. Decision-making about termination of such treatment – usually referred to as futile, useless or inappropriate –, frequently presents a difficult ethical dilemma not only for the intensivists and other health-care workers but also for the patients and their relatives. The principles of biomedical ethics present a useful framework for decision-making in ethical dilemmas but cannot offer sufficiently explicit guidelines. Besides, the concepts of futility or futile treatment in the ICU are also not unequivocally defined. Thus, the decision regarding continuing or stopping treatment should be based on careful evaluation of the balance between its expected efficiency and benefits on the one hand and the burden imposed upon the patient on the other. If the burden clearly exceeds the expected benefits, the ethically sound decision is to terminate such treatment.

  6. Solving the stability-accuracy-diversity dilemma of recommender systems

    Science.gov (United States)

    Hou, Lei; Liu, Kecheng; Liu, Jianguo; Zhang, Runtong

    2017-02-01

    Recommender systems are of great significance in predicting the potential interesting items based on the target user's historical selections. However, the recommendation list for a specific user has been found changing vastly when the system changes, due to the unstable quantification of item similarities, which is defined as the recommendation stability problem. To improve the similarity stability and recommendation stability is crucial for the user experience enhancement and the better understanding of user interests. While the stability as well as accuracy of recommendation could be guaranteed by recommending only popular items, studies have been addressing the necessity of diversity which requires the system to recommend unpopular items. By ranking the similarities in terms of stability and considering only the most stable ones, we present a top- n-stability method based on the Heat Conduction algorithm (denoted as TNS-HC henceforth) for solving the stability-accuracy-diversity dilemma. Experiments on four benchmark data sets indicate that the TNS-HC algorithm could significantly improve the recommendation stability and accuracy simultaneously and still retain the high-diversity nature of the Heat Conduction algorithm. Furthermore, we compare the performance of the TNS-HC algorithm with a number of benchmark recommendation algorithms. The result suggests that the TNS-HC algorithm is more efficient in solving the stability-accuracy-diversity triple dilemma of recommender systems.

  7. The oil industry and climate change: strategies and ethical dilemmas

    International Nuclear Information System (INIS)

    Hove, S. van den; Le Menestrel, M.; Bettignies, H.C. de

    2002-01-01

    This paper explores the different climate change strategies chosen by three major multinational oil corporations: ExxonMobil, TotalFinaElf and BP Amoco. They are referred to, as the 'fight against emission constraints,' 'wait and see,' and 'proactive' strategies, respectively. The justifications given to support these strategies are identified. They cover the business, scientific, political, economic, technological and social dimensions. In a business ethics framework, the issue of climate change brings forth an ethical dilemma for the oil industry, in the form of a tension between profits and CO 2 emissions. The strategies are analysed as three attitudes towards this dilemma: (i) placing priority on the business consequences while weakening the perception that anthropogenic greenhouse gas emissions are causing climate change; (ii) avoiding responsibility; and (iii) placing priority on the need for a modification of the business process while limiting the negative effect in terms of business consequences. In conclusion, we propose that beyond the ethical issues proper to climate change itself, additional ethical issues are raised if society at large is instrumentalised by an industry in its search for profit. Publicly gauging and valorising the ethical commitment of a corporation appear as ways of inducing more collaborative and proactive attitudes by business actors. (Author)

  8. The oil industry and climate change. Strategies and ethical dilemmas

    International Nuclear Information System (INIS)

    Van den Hove, S.; Le Menestrel, Marc; De Bettignies, Henri-Claude

    2002-01-01

    This paper explores the different climate change strategies chosen by three major multinational oil corporations: ExxonMobil, TotalFinaElf and BP Amoco. They are referred to, as the 'fight against emission constraints,' 'wait and see', and 'proactive' strategies, respectively. The justifications given to support these strategies are identified. They cover the business, scientific, political, economic, technological and social dimensions. In a business ethics framework, the issue of climate change brings forth an ethical dilemma for the oil industry, in the form of a tension between profits and CO2 emissions. The strategies are analysed as three attitudes towards this dilemma: (1) placing priority on the business consequences while weakening the perception that anthropogenic greenhouse gas emissions are causing climate change; (2) avoiding responsibility; and (3) placing priority on the need for a modification of the business process while limiting the negative effect in terms of business consequences. In conclusion, we propose that beyond the ethical issues proper to climate change itself, additional ethical issues are raised if society at large is instrumentalised by an industry in its search for profit. Publicly gauging and valorising the ethical commitment of a corporation appear as ways of inducing more collaborative and proactive attitudes by business actors

  9. Cooperation in the prisoner's dilemma game on tunable community networks

    Science.gov (United States)

    Liu, Penghui; Liu, Jing

    2017-04-01

    Community networks have attracted lots of attention as they widely exist in the real world and are essential to study properties of networks. As the game theory illustrates the competitive relationship among individuals, studying the iterated prisoner's dilemma games (PDG) on community networks is meaningful. In this paper, we focus on investigating the relationship between the cooperation level of community networks and that of their communities in the prisoner's dilemma games. With this purpose in mind, a type of tunable community networks whose communities inherit not only the scale-free property, but also the characteristic of adjustable cooperation level of Holme and Kim (HK) networks is designed. Both uniform and non-uniform community networks are investigated. We find out that cooperation enhancement of communities can improve the cooperation level of the whole networks. Moreover, simulation results indicate that a large community is a better choice than a small community to improve the cooperation level of the whole networks. Thus, improving the cooperation level of community networks can be divided into a number of sub-problems targeting at improving the cooperation level of individual communities, which can save the computation cost and deal with the problem of improving the cooperation level of huge community networks. Moreover, as the larger community is a better choice, it is reasonable to start with large communities, according to the greedy strategy when the number of nodes can participate in the enhancement is limited.

  10. Applications of Mindfulness in Psychotherapy – Contemporary Dilemmas

    Directory of Open Access Journals (Sweden)

    Borut ŠKODLAR

    2016-08-01

    Full Text Available Mindfulness has without doubt been the fastest spreading and most popular concept in psychotherapy in the last two decades. Its influence exceeds that of any other individual concept or approach in modern psychotherapy. However, there are many dilemmas, open questions and controversies related to this rapid, almost fanatic spread, which obviously compensates for a certain lack in modern Euro- and Americo-centric societies. Similarly, we are witnessing in the West a lack of reflection, a process of limitless idealization, and the search for a panacea. This all flows with a tint of colonialism, presumptuously taking over ideas, concepts and techniques without a proper study of the primary sources, and with all the accompanying negative side-effects: profiteering, self-promotion, unethical conduct, empty promises of instant rewards, and so on. In the present paper, the development of interest in mindfulness in psychotherapy, as well as the research findings and dilemmas, and concepts and mechanisms of applying mindfulness in psychotherapy, will be reviewed. The main purpose of the paper is to contribute to the critical reflection in studying and applying mindfulness in psychotherapy.

  11. Climate change, nuclear power, and the adaptation-mitigation dilemma

    International Nuclear Information System (INIS)

    Kopytko, Natalie; Perkins, John

    2011-01-01

    Many policy-makers view nuclear power as a mitigation for climate change. Efforts to mitigate and adapt to climate change, however, interact with existing and new nuclear power plants, and these installations must contend with dilemmas between adaptation and mitigation. This paper develops five criteria to assess the adaptation-mitigation dilemma on two major points: (1) the ability of nuclear power to adapt to climate change and (2) the potential for nuclear power operation to hinder climate change adaptation. Sea level rise models for nine coastal sites in the United States, a review of US Nuclear Regulatory Commission documents, and reports from France's nuclear regulatory agency provided insights into issues that have arisen from sea level rise, shoreline erosion, coastal storms, floods, and heat waves. Applying the criteria to inland and coastal nuclear power plants reveals several weaknesses. Safety stands out as the primary concern at coastal locations, while inland locations encounter greater problems with interrupted operation. Adapting nuclear power to climate change entails either increased expenses for construction and operation or incurs significant costs to the environment and public health and welfare. Mere absence of greenhouse gas emissions is not sufficient to assess nuclear power as a mitigation for climate change. - Research Highlights: → The adaptation-mitigation criteria reveal nuclear power's vulnerabilities. → Climate change adaptation could become too costly at many sites. → Nuclear power operation jeopardizes climate change adaptation. → Extreme climate events pose a safety challenge.

  12. Joseph A. Burton Forum Award: Some Nuclear Weapons Dilemmas

    Science.gov (United States)

    May, Michael

    2014-03-01

    Nuclear weapons pose a combination of political and ethical dilemmas the solution to which has not been found. On one hand, in the view of both US government leaders and US allies, nuclear deterrence continues to play an essential part in the US role as the ultimate source of military strength for the alliances among the major democratic countries. It also continues to be in demand by countries that believe themselves to be isolated and threatened. On the other hand, nuclear weapons, besides being effective deterrents, can cause unprecedented loss of life and risk the demise of civilizations. No ban or technical precaution could prevent the rebuilding of nuclear weapons in a crisis. No diplomatic arrangement to date has erased the threat of invasion and war in the world. Only the abandonment of war and the threat of war as instruments of policy can make nuclear weapons obsolete. The slow, halting, risky road to that end remains the only hope for a world in which lasting solutions to the nuclear dilemmas are possible.

  13. Discrepancies between judgment and choice of action in moral dilemmas

    Directory of Open Access Journals (Sweden)

    Sébastien eTassy

    2013-05-01

    Full Text Available Everyone has experienced the potential discrepancy between what one judges as morally acceptable and what one actually does when a choice between alternative behaviors is to be made. The present study explores empirically whether judgment and choice of action differ when people make decisions on dilemmas involving moral issues. 240 participants evaluated 24 moral and non-moral dilemmas either by judging (Is it acceptable to… or reporting the choice of action they would make (Would you do…. We also investigated the influence of varying the number of people benefiting from the decision and the closeness of relationship of the decision maker with the potential victim on these two types of decision. Variations in the number of beneficiaries from the decision did not influence judgment nor choice of action. By contrast, closeness of relationship with the victim had a greater influence on the choice of action than on judgment. This differentiation between evaluative judgments and choices of action argues in favor of each of them being supported by (at least partially different psychological processes.

  14. Coexistence of fraternity and egoism for spatial social dilemmas.

    Science.gov (United States)

    Szabó, György; Szolnoki, Attila; Czakó, Lilla

    2013-01-21

    We have studied an evolutionary game with spatially arranged players who can choose one of the two strategies (named cooperation and defection for social dilemmas) when playing with their neighbors. In addition to the application of the usual strategies in the present model the players are also characterized by one of the two extreme personal features representing the egoist or fraternal behavior. During the evolution each player can modify both her own strategy and/or personal feature via a myopic update process in order to improve her utility. The results of numerical simulations and stability analysis are summarized in phase diagrams representing a wide scale of spatially ordered distribution of strategies and personal features when varying the payoff parameters. In most of the cases only two of the four possible options prevail and may form sublattice ordered spatial structure. The evolutionary advantage of the fraternal attitude is demonstrated within a large range of payoff parameters including the region of prisoner's dilemma where egoist defectors and fraternal cooperators form a role-separating chessboard like pattern. Copyright © 2012 Elsevier Ltd. All rights reserved.

  15. q-Strategy spatial prisoner's dilemma game

    Energy Technology Data Exchange (ETDEWEB)

    Li, Zhi-Hua, E-mail: zhihuli@mail.ustc.edu.cn [Department of Material Science and Engineering, University of Science and Technology of China, Hefei 230026 (China); Fan, Hong-Yi [Department of Material Science and Engineering, University of Science and Technology of China, Hefei 230026 (China); Xu, Wen-Long [School of Computer Science and Technology, Beihang University, Beijing 100083 (China); Yang, Han-Xin [Department of Modern Physics, University of Science and Technology of China, Hefei 230026 (China)

    2011-09-26

    We generalize the usual two-strategy prisoner's dilemma game to a multi-strategy game, in which the strategy variable s is allowed to take q different fractional values lying between 0 and 1. The fractional-valued strategies signify that individuals are not absolutely cooperative or defective, instead they can adopt intermediate strategies. Simulation results on 1D and 2D lattices show that, compared with the binary strategy game, the multi-strategy game can sustain cooperation in more stringent defective environments. We give a comprehensive analysis of the distributions of the survived strategies and we compare pairwise the relative strength and weakness of different strategies. It turns out that some intermediate strategies survive the pure defection because they can reduce being exploited and at the same time benefit from the spatial reciprocity effect. Our work may shed some light on the intermediate behaviors in human society. -- Highlights: → We propose a q-strategy prisoner's dilemma game with intermediate strategies. → The intermediate strategies characterize the extent of cooperation or defection. → We implement the model in a structured population. → The intermediate strategies can promote cooperation.

  16. Bioethical dilemmas on medical grounds – psychological perspective

    Directory of Open Access Journals (Sweden)

    Justyna A. Kaczmarczyk

    2017-03-01

    Full Text Available The rapid development of medicine that has taken place in the last 10 years confronts personnel with new challenges that extend beyond life-saving treatments; they include moral, legal, and deontological dilemmas, which can be recognised as bioethical ones. The new discourse of patient’s participation in planning their treatment makes it impossible to remain indifferent to their expectations and will, the patient’s approval, and declaration of intent on the healing process, and at the same time not to respect their basic privileges guaranteed by law and those arising from the codes of ethics. Humans are a bio-psychophysical unity, and therefore should be perceived from a holistic perspective. This article presents the different dilemmas concerning the treatment of patients in the terminal stage of disease, including minors. It indicates the assessment and the prospect of death, from the child and adult perspective. It recognises patient’s rights, his/her autonomy, dignity, subjectivity, but also the responsibilities and duties of health care personnel, taking into account respect for the patient, his/her independence, the adequacy of activities, and reference to the principle of double effect.

  17. Work zone safety analysis.

    Science.gov (United States)

    2013-11-01

    This report presents research performed analyzing crashes in work zones in the state of New Jersey so as to : identify critical areas in work zones susceptible to crashes and key factors that contribute to these crashes. A field : data collection on ...

  18. Fault zone hydrogeology

    Science.gov (United States)

    Bense, V. F.; Gleeson, T.; Loveless, S. E.; Bour, O.; Scibek, J.

    2013-12-01

    Deformation along faults in the shallow crust (research effort of structural geologists and hydrogeologists. However, we find that these disciplines often use different methods with little interaction between them. In this review, we document the current multi-disciplinary understanding of fault zone hydrogeology. We discuss surface- and subsurface observations from diverse rock types from unlithified and lithified clastic sediments through to carbonate, crystalline, and volcanic rocks. For each rock type, we evaluate geological deformation mechanisms, hydrogeologic observations and conceptual models of fault zone hydrogeology. Outcrop observations indicate that fault zones commonly have a permeability structure suggesting they should act as complex conduit-barrier systems in which along-fault flow is encouraged and across-fault flow is impeded. Hydrogeological observations of fault zones reported in the literature show a broad qualitative agreement with outcrop-based conceptual models of fault zone hydrogeology. Nevertheless, the specific impact of a particular fault permeability structure on fault zone hydrogeology can only be assessed when the hydrogeological context of the fault zone is considered and not from outcrop observations alone. To gain a more integrated, comprehensive understanding of fault zone hydrogeology, we foresee numerous synergistic opportunities and challenges for the discipline of structural geology and hydrogeology to co-evolve and address remaining challenges by co-locating study areas, sharing approaches and fusing data, developing conceptual models from hydrogeologic data, numerical modeling, and training interdisciplinary scientists.

  19. European Portuguese adaptation and validation of dilemmas used to assess moral decision-making.

    Science.gov (United States)

    Fernandes, Carina; Gonçalves, Ana Ribeiro; Pasion, Rita; Ferreira-Santos, Fernando; Paiva, Tiago Oliveira; Melo E Castro, Joana; Barbosa, Fernando; Martins, Isabel Pavão; Marques-Teixeira, João

    2018-03-01

    Objective To adapt and validate a widely used set of moral dilemmas to European Portuguese, which can be applied to assess decision-making. Moreover, the classical formulation of the dilemmas was compared with a more focused moral probe. Finally, a shorter version of the moral scenarios was tested. Methods The Portuguese version of the set of moral dilemmas was tested in 53 individuals from several regions of Portugal. In a second study, an alternative way of questioning on moral dilemmas was tested in 41 participants. Finally, the shorter version of the moral dilemmas was tested in 137 individuals. Results Results evidenced no significant differences between English and Portuguese versions. Also, asking whether actions are "morally acceptable" elicited less utilitarian responses than the original question, although without reaching statistical significance. Finally, all tested versions of moral dilemmas exhibited the same pattern of responses, suggesting that the fundamental elements to the moral decision-making were preserved. Conclusions We found evidence of cross-cultural validity for moral dilemmas. However, the moral focus might affect utilitarian/deontological judgments.

  20. European Portuguese adaptation and validation of dilemmas used to assess moral decision-making

    Directory of Open Access Journals (Sweden)

    Carina Fernandes

    2018-04-01

    Full Text Available Abstract Objective To adapt and validate a widely used set of moral dilemmas to European Portuguese, which can be applied to assess decision-making. Moreover, the classical formulation of the dilemmas was compared with a more focused moral probe. Finally, a shorter version of the moral scenarios was tested. Methods The Portuguese version of the set of moral dilemmas was tested in 53 individuals from several regions of Portugal. In a second study, an alternative way of questioning on moral dilemmas was tested in 41 participants. Finally, the shorter version of the moral dilemmas was tested in 137 individuals. Results Results evidenced no significant differences between English and Portuguese versions. Also, asking whether actions are “morally acceptable” elicited less utilitarian responses than the original question, although without reaching statistical significance. Finally, all tested versions of moral dilemmas exhibited the same pattern of responses, suggesting that the fundamental elements to the moral decision-making were preserved. Conclusions We found evidence of cross-cultural validity for moral dilemmas. However, the moral focus might affect utilitarian/deontological judgments.

  1. Analysis of the 'dilemma effect' in fifth-order deflection aberration

    International Nuclear Information System (INIS)

    Zhang Xiaobing; Yin Hanchun; Lei Wei; Xue Kunxing; Tong Linsu

    1999-01-01

    In this paper, the coma of the fifth-order aberration at a large deflection angle has been analyzed by using multipole field theory. The dilemma effect exists in the comas of fifth-order aberration. The dilemma effect, whose value D r is constant and independent of the 10-pole field, is the linear combination of coma aberrations. The coma of the fifth-order aberration is corrected by adjusting the 10-pole field distribution when D r is zero or small. The factors that influence the dilemma effect have been calculated and analyzed

  2. The Importance of the Lateral Prefrontal Cortex for Strategic Decision Making in the Prisoner's Dilemma.

    Science.gov (United States)

    Soutschek, Alexander; Sauter, Marian; Schubert, Torsten

    2015-12-01

    Previous functional imaging studies investigating the neural basis of strategic decision making in the prisoner's dilemma reported a correlation between cooperative behavior and dorsolateral prefrontal cortex (DLPFC) activity; however, the precise function of the DLPFC in establishing cooperation remains unclear so far. The present study investigated the causal role of the DLPFC in an iterative prisoner's dilemma game with transcranial magnetic stimulation (TMS). We discovered that disrupting the DLPFC with TMS decreased cooperation rates in comparison to control conditions, with this effect being most pronounced when the partner had defected previously. Thus, the current results suggest that the DLPFC contributes to strategic decision making in the prisoner's dilemma game.

  3. Isolated free intra-abdominal fluid on CT in blunt trauma: The continued diagnostic dilemma.

    Science.gov (United States)

    Kong, Victor Y; Jeetoo, Damon; Naidoo, Leah C; Oosthuizen, George V; Clarke, Damian L

    2015-01-01

    The clinical significance of isolated free fluid (FF) without solid organ injury on computed to- mography (CT) continues to pose significant dilemma in the management of patients with blunt abdominal trauma (BAT). We reviewed the incidence of FF and the clinical outcome amongst patients with blunt abdominal trauma in a metropolitan trauma service in South Africa. We performed a retrospective study of 121 consecutive CT scans over a period of 12 months to determine the incidence of isolated FF and the clinical outcome of patients managed in a large metropolitan trauma service. Of the 121 CTs, FF was identified in 36 patients (30%). Seven patients (6%) had isolated FF. Of the 29 patients who had free fluid and associated organ injuries, 33 organ injuries were identified. 86% (25/ 29) of all 29 patients had a single organ injury and 14% had multiple organ injuries. There were 26 solid organ injuries and 7 hollow organ injuries. The 33 organs injured were: spleen, 12; liver, 8; kidney, 5; pancreas, 2; small bowel, 4; duodenum, 1. Six (21%) patients required operative management for small bowel perforations in 4 cases and pancreatic tail injury in 2 cases. All 7 patients with isolated FF were initially observed, and 3 (43%) were eventually subjected to operative intervention. They were found to have an intra-peritoneal bladder rupture in 1 case, a non-expanding zone 3 haematoma in 1 case, and a negative laparotomy in 1 case. Four (57%) patients were successfully managed without surgical interventions. Isolated FF is uncommon and the clinical significance remains unclear. Provided that reli- able serial physical examination can be performed by experienced surgeons, an initial non-operative approach should be considered.

  4. Solving the apparent diversity-accuracy dilemma of recommender systems.

    Science.gov (United States)

    Zhou, Tao; Kuscsik, Zoltán; Liu, Jian-Guo; Medo, Matús; Wakeling, Joseph Rushton; Zhang, Yi-Cheng

    2010-03-09

    Recommender systems use data on past user preferences to predict possible future likes and interests. A key challenge is that while the most useful individual recommendations are to be found among diverse niche objects, the most reliably accurate results are obtained by methods that recommend objects based on user or object similarity. In this paper we introduce a new algorithm specifically to address the challenge of diversity and show how it can be used to resolve this apparent dilemma when combined in an elegant hybrid with an accuracy-focused algorithm. By tuning the hybrid appropriately we are able to obtain, without relying on any semantic or context-specific information, simultaneous gains in both accuracy and diversity of recommendations.

  5. Social dilemma alleviated by sharing the gains with immediate neighbors

    Science.gov (United States)

    Wu, Zhi-Xi; Yang, Han-Xin

    2014-01-01

    We study the evolution of cooperation in the evolutionary spatial prisoner's dilemma game (PDG) and snowdrift game (SG), within which a fraction α of the payoffs of each player gained from direct game interactions is shared equally by the immediate neighbors. The magnitude of the parameter α therefore characterizes the degree of the relatedness among the neighboring players. By means of extensive Monte Carlo simulations as well as an extended mean-field approximation method, we trace the frequency of cooperation in the stationary state. We find that plugging into relatedness can significantly promote the evolution of cooperation in the context of both studied games. Unexpectedly, cooperation can be more readily established in the spatial PDG than that in the spatial SG, given that the degree of relatedness and the cost-to-benefit ratio of mutual cooperation are properly formulated. The relevance of our model with the stakeholder theory is also briefly discussed.

  6. Serendipitous Discovery of Factor VII Deficiency and the Ensuing Dilemma.

    Science.gov (United States)

    Umakanthan, Jayadev M; Dhakal, Prajwal; Gundabolu, Krishna; Koepsell, Scott A; Baljevic, Muhamed

    2018-03-01

    Congenital factor VII deficiency is a challenging disorder to manage, as it is associated with varied genotypes that do not clinically correlate with a bleeding phenotype. Individuals with severe factor VII deficiency (FVII: c 5%) may experience severe hemorrhages. In modern medicine, due to extensive routine pre-operative laboratory testing, clinically asymptomatic patients without any bleeding history might be incidentally discovered, raising clinical dilemmas. Careful consideration of bleeding versus thrombosis risk has to be made in such cases, especially in the elderly. Clinical history of no prior bleeding complications may be a reassuring factor. Minimal required replacement dosing of recombinant activated factor VII can be given peri-operatively in such situations, with close monitoring.

  7. [Policy dilemmas in providing antiretroviral treatment in Brazil].

    Science.gov (United States)

    do Lago, Regina Ferro; Costa, Nilson do Rosário

    2010-11-01

    This paper addresses institutional constraints that have affected Brazilian politics regarding provision of anti-retroviral treatment (ART) to HIV/Aids patients. We analyzed the normative conflict resulting from international agreements on intellectual property rights, especially patent protection, and the constitutional rights of Brazilian patients to universal and free access to ART. These constraints have not substantially changed the Brazilian public policy yet, but they may impact the future sustainability of this policy. As the main barrier to the production of patented drugs is not technological but institutional, Brazilian government faces a dilemma. It may either abide by existing monopolistic restrictions or it may incite competitiveness of domestic industries and developing countries in the pharmaceutical market.

  8. Learning and teaching entrepreneurship: Dilemmas, reflections and strategies

    DEFF Research Database (Denmark)

    Blenker, Per; Dreisler, Poul; Færgemann, Helle Meibom

    2006-01-01

    The question as to whether entrepreneurship could be learned - and whether it should be taught as part of University Studies in general, more particularly as part of business studies, has been discussed for a number of years. The most widespread answer today seems to be positive; yes......, entrepreneurship can be learned and should be taught. A major problem is that the traditional forms of teaching at universities and business schools have shown themselves quite inappropriate for enhancing the motivation and competencies of students towards innovation and entrepreneurship. This phenomenon has...... the secure context of the university auditorium or in small firms - or perhaps somewhere in between academia and practice. A fourth dilemma is whether students should work individually or collectively and a fifth is the question of how the substance of what is taught is formulated; whether entrepreneurship...

  9. Denmark: Small state with big voice and bigger dilemmas

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou; Nielsen, Helle Ørsted

    2016-01-01

    Denmark is a relatively small country by any standard and its influence in international climate negotiations remains limited. Nevertheless, the pioneering of certain climate-related policies, (including in renewables, energy efficiency and taxes on CO2), has, over the previous decades, been...... attracting international interest and has provided Denmark with some leverage to act as instigator and self-declared leader into international climate diplomacy. The independent Climate Change Performance Index, for instance, over three consecutive years ranked Denmark as its top performer in acknowledgement......), there are numerous dilemmas both at the substantive and diplomatic level when it comes to climate policy. Denmark’s actual greenhouse gas emissions (GHGE) per capita remains above the EU average (OECD, 2012:73) reflecting a high level of individual consumption as well as sectoral interests related to resource...

  10. The prisoner's dilemma in structured scale-free networks

    International Nuclear Information System (INIS)

    Li Xing; Wu Yonghui; Zhang Zhongzhi; Zhou Shuigeng; Rong Zhihai

    2009-01-01

    The conventional wisdom is that scale-free networks are prone to cooperation spreading. In this paper we investigate the cooperative behavior on the structured scale-free network. In contrast to the conventional wisdom that scale-free networks are prone to cooperation spreading, the evolution of cooperation is inhibited on the structured scale-free network when the prisoner's dilemma (PD) game is modeled. First, we demonstrate that neither the scale-free property nor the high clustering coefficient is responsible for the inhibition of cooperation spreading on the structured scale-free network. Then we provide one heuristic method to argue that the lack of age correlations and its associated 'large-world' behavior in the structured scale-free network inhibit the spread of cooperation. These findings may help enlighten further studies on the evolutionary dynamics of the PD game in scale-free networks

  11. Dilemmas in the Danish Approach to Gender Equality

    DEFF Research Database (Denmark)

    Agustin, Lise Rolandsen; Siim, Birte

    and gender parity. Gender theory has conceptualized gender parity as one step towards achieving gender justice in all arenas of social, political and economic life. The Danish cases illustrate that context matters and question gender quota as a universal strategy to achieve gender equality. The empirical......The paper addresses the dilemmas, contradictions and paradoxes in the Danish approach to gender quotas and gender equality and discusses the intersections of citizenship, democracy and gender justice. Gender research understands gender quota as a means to achieve equal rights, gender equality...... to a limited extent addresses the impact of these policies and their implications for lived practice. One issue concerns the paradox of the relatively high female representation in politics without the adoption of gender quotas. A second issue concerns the gap between gender equality policies. Denmark lacks...

  12. Direct sum matrix game with prisoner's dilemma and snowdrift game.

    Directory of Open Access Journals (Sweden)

    Chengzhang Ma

    Full Text Available A direct sum form is proposed for constructing a composite game from two 2 x 2 games, prisoner's dilemma and snowdrift game. This kind of direct sum form game is called a multiple roles game. The replicator dynamics of the multiple roles game with will-mixed populations is explored. The dynamical behaviors on square lattice are investigated by numerical simulation. It is found that the dynamical behaviors of population on square lattice depend on the mixing proportion of the two simple games. Mixing SD activities to pure PD population inhibits the proportion of cooperators in PD, and mixing PD activities to pure SD population stimulates the proportion of cooperators in SD. Besides spatial reciprocity, our results show that there are roles reciprocities between different types of individuals.

  13. Dilemmas within Commercial Involvement in Open Source Software

    DEFF Research Database (Denmark)

    Ciesielska, Malgorzata; Westenholz, Ann

    2016-01-01

    to free-riding. There are six levels of commercial involvement in open source communities, and each of them is characterized by a different dilemma. Originality/value – The paper sheds light on the various level of involvement of business in open source movement and emphasize that the popularized “open......Purpose – The purpose of this paper is to contribute to the literature about the commercial involvement in open source software, levels of this involvement and consequences of attempting to mix various logics of action. Design/methodology/approach – This paper uses the case study approach based...... on mixed methods: literature reviews and news searches, electronic surveys, qualitative interviews and observations. It combines discussions from several research projects as well as previous publications to present the scope of commercial choices within open source software and their consequences...

  14. Exit, punishment and rewards in commons dilemmas: an experimental study.

    Directory of Open Access Journals (Sweden)

    Giangiacomo Bravo

    Full Text Available Commons dilemmas are interaction situations where a common good is provided or exploited by a group of individuals so that optimal collective outcomes clash with private interests. Although in these situations, social norms and institutions exist that might help individuals to cooperate, little is known about the interaction effects between positive and negative incentives and exit options by individuals. We performed a modified public good game experiment to examine the effect of exit, rewards and punishment, as well as the interplay between exit and rewards and punishment. We found that punishment had a stronger effect than rewards on cooperation if considered by itself, whereas rewards had a stronger effect when combined with voluntary participation. This can be explained in terms of the 'framing effect', i.e., as the combination of exit and rewards might induce people to attach higher expected payoffs to cooperative strategies and expect better behaviour from others.

  15. Prisoners' dilemma in the presence of collective dephasing

    International Nuclear Information System (INIS)

    Nawaz, Ahmad

    2012-01-01

    We quantize prisoners' dilemma in the presence of collective dephasing with a dephasing rate γ. It is shown that for a two-parameter set of strategies, Q⊗Q is Nash equilibrium below a cut-off value of time. Beyond this cut-off it bifurcates into two new Nash equilibria Q⊗D and D⊗Q. Furthermore, for the maximum value of decoherence C⊗D and D⊗C also become Nash equilibria. At this stage the game has four Nash equilibria. On the other hand, for a three-parameter set of strategies, there is no pure strategy Nash equilibrium; however, there is a mixed strategy (non-unique) Nash equilibrium that is not affected by collective dephasing. (paper)

  16. Advanced case of glioblastoma multiforme and pregnancy. An ethical dilemma.

    Science.gov (United States)

    Al-Rasheedy, Intisar M; Al-Hameed, Fahad M

    2015-10-01

    Glioblastoma multiforme (GBM) is the most common and malignant form of the glial tumors. Advanced and treated GBM is rarely associated with pregnancy for many reasons. Glioblastoma multiforme presenting during pregnancy carries unique challenges to the patient, baby, family, and health care providers. We describe an unusual case of advanced GBM that was treated with maximum doses of chemotherapy and radiations, and she became pregnant and presented at eighteenth weeks of gestation. Her medical management was associated with a significant ethical dilemma. We managed to deliver the baby safely through cesarean section at week 28 despite the critical condition of the mother. Unfortunately, the mother died 2 weeks post delivery. We concluded that although recurrent and treated GBM is rarely associated with pregnancy and carries dismal prognosis, but if it occurs, it can still be carried, and a multidisciplinary team work is the key for successful outcome.

  17. Disputable advantage of experience in the travelers’ dilemma

    DEFF Research Database (Denmark)

    Berkemer, Rainer

    the travelers have many options this result is rather counter intuitive and indeed there is experimental evidence which indicates that deviation will be likely even though the Nash equilibrium is strict. Both, analytical tools and agent based simulation are used to investigate the strategy evolution...... in a generalized travelers’ dilemma. Two parameters are of interest: the number of strategy options (m) available to each traveler and an experience parameter (k), which indicates the number of samples an agent would evaluate before fixing his decision. The special case k=1 can be treated analytically......The sampling dynamics is an adaptation dynamics which allows studying directly the impact of experience on the performance of agents. The paper discusses a case where it is quite dubious whether agents can exploit additional experience. Even if the cost of processing information is neglected it may...

  18. A systematic review on social dilemmas and moral emotions

    Directory of Open Access Journals (Sweden)

    Bianca Analía Saavedra

    2015-07-01

    Full Text Available The growing interest in the role of emotions in behavioral economics, and the absence of reviews on this subject have motivated this work, which purpose was analyze the empirical evidence on the role of moral emotions in social dilemmas situations. The reviewed articles (n= 17 were obtained from EBSCO, OVID and ScienceDirect. We analyzed the following aspects: objectives, sample, experimental game or task, and results. A group of studies was focused on the influence of moral emotions on cooperation, using mainly the Give-Some game or the Ultimatum Game. Another group of studies was focused on the role of empathy-altruism in helping behaviors, using distribution tasks. The analysis of results shows that guilt and shame increase the tendency to cooperate, while emotions like anger and disgust diminish it. Furthermore, the induction of empathy promoted altruistic behavior and helping behaviors. This review provides useful elements to be considered in future research.

  19. Environmental feedback drives cooperation in spatial social dilemmas

    Science.gov (United States)

    Szolnoki, Attila; Chen, Xiaojie

    2017-12-01

    Exploiting others is beneficial individually but it could also be detrimental globally. The reverse is also true: a higher cooperation level may change the environment in a way that is beneficial for all competitors. To explore the possible consequence of this feedback we consider a coevolutionary model where the local cooperation level determines the payoff values of the applied prisoner's dilemma game. We observe that the coevolutionary rule provides a significantly higher cooperation level comparing to the traditional setup independently of the topology of the applied interaction graph. Interestingly, this cooperation supporting mechanism offers lonely defectors a high surviving chance for a long period hence the relaxation to the final cooperating state happens logarithmically slow. As a consequence, the extension of the traditional evolutionary game by considering interactions with the environment provides a good opportunity for cooperators, but their reward may arrive with some delay.

  20. The innovator's dilemma revisited: The Home Communication Concept (HCC)

    DEFF Research Database (Denmark)

    Madsen, Arne Stjernholm; Ulhøi, John Parm

    of analysing the actual events. In this respect, it not only demonstrates the classical dilemma of management during disruptive technological development, but also illustrates the internal problem of allowing a creative BDD to become 'sectarian', i.e. blindly believing in itself and suspicious of the rest......The case described in this article is based on an innovation project at Ericsson Denmark. The project has been called the home communication concept (HCC), and represents the response of a major ICT manufacturer to the reshaping of the telecom market, paved by internet technology. The project...... of the world. Using the framework presented in this paper, several fundamental concerns regarding existing research are identified and discussed. In closing, implications for research and management are addressed....

  1. What is a writing group? Dilemmas of the leader.

    Science.gov (United States)

    Grundy, Dominick

    2007-04-01

    A writing group can serve to reinforce literary and therapeutic goals. The model outlined here assumes a leader with literary and clinical training, including expertise in group dynamics. The group format is adapted to support exploration of the writer's main problem, the absence of the reader at the moment of writing. The group modifies the writer's "mythical" reader through member interactions with writer and writing. Giving and receiving feedback are central to the group process. The leader's dilemma in a bifocal form like this is to know when and how far to interpret group members' psychological issues. The best rule is to interpret "toward" the group (i.e., to bring up material that can be safely and readily processed there), but to be cautious about interpretation of patterns of early character formation.

  2. Catatonia versus neuroleptic malignant syndrome: the diagnostic dilemma and treatment.

    Science.gov (United States)

    Sahoo, Manoj Kumar; Agarwal, Sanjay; Biswas, Harshita

    2014-01-01

    Catatonia is a syndrome, comprised of symptoms such as motor immobility, excessive motor activity, extreme negativism, and stereotyped movements. Neuroleptic is able to induce catatonia like symptoms, that is, the neuroleptic malignant syndrome (NMS). In NMS, patients typically show symptoms such as an altered mental state, muscle rigidity, tremor, tachycardia, hyperpyrexia, leukocytosis, and elevated serum creatine phosphorous kinase. Several researchers have reported studies on catatonia and the association between catatonia and NMS, but none were from this part of the eastern India. In our case, we observed overlapping symptoms of catatonia and NMS; we wish to present a case of this diagnostic dilemma in a patient with catatonia, where a detailed history, investigation, and symptom management added as a great contribution to the patient's rapid improvement.

  3. Catatonia versus neuroleptic malignant syndrome: the diagnostic dilemma and treatment

    Directory of Open Access Journals (Sweden)

    Manoj Kumar Sahoo

    2014-01-01

    Full Text Available Catatonia is a syndrome, comprised of symptoms such as motor immobility, excessive motor activity, extreme negativism, and stereotyped movements. Neuroleptic is able to induce catatonia like symptoms, that is, the neuroleptic malignant syndrome (NMS. In NMS, patients typically show symptoms such as an altered mental state, muscle rigidity, tremor, tachycardia, hyperpyrexia, leukocytosis, and elevated serum creatine phosphorous kinase. Several researchers have reported studies on catatonia and the association between catatonia and NMS, but none were from this part of the eastern India. In our case, we observed overlapping symptoms of catatonia and NMS; we wish to present a case of this diagnostic dilemma in a patient with catatonia, where a detailed history, investigation, and symptom management added as a great contribution to the patient′s rapid improvement.

  4. Medical confidentiality versus disclosure: Ethical and legal dilemmas.

    LENUS (Irish Health Repository)

    Agyapong, V I O

    2009-02-01

    A case is described of a fifty year old single man who made disclosures about criminal sexual practices during a psychiatric assessment. In common practice with other professional men, a doctor is under a duty not to disclose, without the consent of his patient, information which he has gained in his professional capacity other than in exceptional circumstances. We discuss the ethical and legal considerations surrounding issues of medical confidentiality and the dilemma that sometimes face clinicians, when they feel obliged, in the public interest, to disclose information they have gained in confidence. Breach of confidences can have deleterious consequences; particularly for the doctor-patient relationship, but failure to disclose in some situations could have serious implications for the well-being of the wider society. Doctors should be aware of the basic principles of confidentiality and the ethical and legal framework around which they are built.

  5. Cooperation enhanced by habitat destruction in Prisoner's Dilemma Games

    Science.gov (United States)

    Yang, Xiqing; Wang, Wanxiong; Zhang, Feng; Qiao, Hongqiang

    2017-11-01

    The emergence and maintenance of cooperation is a fundamental problem within groups of selfish individuals, whereby we introduce a model of replicator equations based on the Prisoner's Dilemma game. In the present work, the effect of habitat destruction on the evolution of cooperation will be taken into account. Our results show that cooperators can receive the biggest boost for a moderate value of habitat destruction, and more serious habitat destruction will lead to lower levels of cooperation until zero. Moreover, we also reach the conclusion that the cooperation level decreases monotonously with the increasing of the ratio of cooperative cost to benefit but increases monotonously with the increasing of the encounter probability. Our findings can help to further understand the evolution of cooperation under the harsh external environment.

  6. Effects of Inertia on Evolutionary Prisoner's Dilemma Game

    Science.gov (United States)

    Du, Wen-Bo; Cao, Xian-Bin; Liu, Run-Ran; Wang, Zhen

    2012-09-01

    Considering the inertia of individuals in real life, we propose a modified Fermi updating rule, where the inertia of players is introduced into evolutionary prisoner's dilemma game (PDG) on square lattices. We mainly focus on how the inertia affects the cooperative behavior of the system. Interestingly, we find that the cooperation level has a nonmonotonic dependence on the inertia: with small inertia, cooperators will soon be invaded by defectors; with large inertia, players are unwilling to change their strategies and the cooperation level remains the same as the initial state; while a moderate inertia can induce the highest cooperation level. Moreover, effects of environmental noise and individual inertia are studied. Our work may be helpful in understanding the emergence and persistence of cooperation in nature and society.

  7. Social dilemma structures hidden behind traffic flow with lane changes

    International Nuclear Information System (INIS)

    Tanimoto, Jun; Kukida, Shinji; Hagishima, Aya

    2014-01-01

    Aiming to merge traffic flow analysis with evolutionary game theory, we investigated the question of whether such structures can be formed from frequent lane changes in usual traffic flow without any explicit bottlenecks. In our model system, two classes of driver-agents coexist: C-agents (cooperative strategy) always remain in the lane they are initially assigned, whereas D-agents (defective strategy) try to change lanes to move ahead. In relatively high-density flows, such as the metastable and high-density phases, we found structures that correspond to either n-person prisoner dilemma (n-PD) games or quasi-PD games. In these situations, lane changes by D-agents create heavy traffic jams that reduce social efficiency. (paper)

  8. Effects of Inertia on Evolutionary Prisoner's Dilemma Game

    International Nuclear Information System (INIS)

    Du Wenbo; Cao Xianbin; Liu Runran; Wang Zhen

    2012-01-01

    Considering the inertia of individuals in real life, we propose a modified Fermi updating rule, where the inertia of players is introduced into evolutionary prisoner's dilemma game (PDG) on square lattices. We mainly focus on how the inertia affects the cooperative behavior of the system. Interestingly, we find that the cooperation level has a nonmonotonic dependence on the inertia: with small inertia, cooperators will soon be invaded by defectors; with large inertia, players are unwilling to change their strategies and the cooperation level remains the same as the initial state; while a moderate inertia can induce the highest cooperation level. Moreover, effects of environmental noise and individual inertia are studied. Our work may be helpful in understanding the emergence and persistence of cooperation in nature and society. (interdisciplinary physics and related areas of science and technology)

  9. Repeated thinking promotes cooperation in spatial prisoner's dilemma game

    International Nuclear Information System (INIS)

    Zhang Jun; Cai Kaiquan; Du Wenbo; Cao Xianbin

    2012-01-01

    Inspired by the realistic process of taking decisions in social life, we have proposed a repeated thinking mechanism in the evolutionary spatial prisoner's dilemma game where players are denoted by the vertices and play games with their direct neighbors. Under our mechanism, a player i will randomly select a neighbor j and then deliberate for M times before strategy updating. It will remain unchanged if not all M considerations suggest it to learn the strategy of j. We mainly focus on the evolution of cooperation in the systems. Interestingly, we find that the cooperation level f C is remarkably promoted and f C has a monotonic dependence on the caution parameter M, indicating that being cautious facilitates the emergence and persistence of cooperation. We give a simple but clear explanation for this cooperation promotion via detecting the cooperator-defector transition process. Moreover, the robustness of this mechanism is also examined on different noise levels and game models. (paper)

  10. Nursing students' responses to ethical dilemmas in nursing practice.

    Science.gov (United States)

    Dierckx de Casterlé, B; Grypdonck, M; Vuylsteke-Wauters, M; Janssen, P J

    1997-01-01

    In literature as well as in nursing practice a growing concern about nurses' ethical competence can be observed. Based on the cognitive theory of moral development by Kohlberg, this research examined nursing students' ethical behaviour in five nursing dilemmas. Ethical behaviour refers not only to the ethical reasoning of nursing students but also to the relationship between reasoning and behaviour. Kohlberg's definition of morality was refined by adding a care perspective. The results show that the majority of students can be located in the fourth moral stage according to Kohlberg's theory, that is, the conventional level of moral development. This finding implies that students are still guided by professional rules, norms and duties, and have not (yet) succeeded in making personal ethical decisions on the basis of their own principles and acting according to such decisions.

  11. Separating Judicial from Legislative Reasoning in Moral Dilemma Interviews.

    Science.gov (United States)

    Langford, Peter E

    1997-12-01

    Unlike previous studies of the development of reasoning about moral dilemmas, the 2 studies reported separated judicial reasoning (the application of rules) from legislative reasoning (the justification of rules), as well as attending to other aspects of context, using a modification of the weakly interpretive scoring method of Langford and D'Cruz. This assigns justifications to relatively simple conceptually defined categories. Findings were in accord with substantially modified versions of the views of Piaget and Kohlberg, according to which legislative reasoning can be divided into 3 main types of stages in the period 7-21 years: heteronomy (Piaget) or egocentrism (Kohlberg); local groups (attention to group interests, harmony, and reciprocity in local groups), wider groups (attention to these thing in wider groups). Findings contradicted Gibbs's theory.

  12. Rare Case of Non Tuberculous Mycobacterial: A Diagnostic dilemma

    LENUS (Irish Health Repository)

    Marathe, N

    2017-02-01

    Non-Tuberculous Mycobacterial (NTM) infections occur in HIV-negative patients with or without underlying lung disease. It is generally felt that these organisms are acquired from the environment. Unlike tuberculosis, there are no convincing data demonstrating human-to-human OR animal-to-human transmission of NTM. We report a case of NTM infection in a 38 year old patient with underlying emphysematous lung disease. The case highlights the diagnostic dilemma which occurs when persistent sputum Acid- Fast Bacilli (AFB) smears are positive, but Nucleic acid amplification test is negative. To aid the diagnosis and rule out Pulmonary Tuberculosis as the other differential diagnosis, we applied American Thoracic Society\\/Infectious Disease Society of America (ATS\\/IDSA) guidelines & recommendations1. The decision to treat was taken on basis of CT findings, clinical, microbiologic criteria and expert consultation with Microbiology department at Waterford.

  13. Cooperation Dilemma in Finite Populations under Fluctuating Environments

    Science.gov (United States)

    Assaf, Michael; Mobilia, Mauro; Roberts, Elijah

    2013-12-01

    We present a novel approach allowing the study of rare events like fixation under fluctuating environments, modeled as extrinsic noise, in evolutionary processes characterized by the dominance of one species. Our treatment consists of mapping the system onto an auxiliary model, exhibiting metastable species coexistence, that can be analyzed semiclassically. This approach enables us to study the interplay between extrinsic and demographic noise on the statistics of interest. We illustrate our theory by considering the paradigmatic prisoner’s dilemma game, whose evolution is described by the probability that cooperators fixate the population and replace all defectors. We analytically and numerically demonstrate that extrinsic noise may drastically enhance the cooperation fixation probability and even change its functional dependence on the population size. These results, which generalize earlier works in population genetics, indicate that extrinsic noise may help sustain and promote a much higher level of cooperation than static settings.

  14. The dilemma of diagnostic testing for Prader-Willi syndrome

    Science.gov (United States)

    Hung, Dorothy

    2017-01-01

    Although Prader-Willi syndrome (PWS) is a well-described clinical dysmorphic syndrome, DNA testing is required for a definitive diagnosis. A definitive diagnosis can be made in approximately 99% of cases using DNA testing; there are a number of DNA tests that can be used for this purpose, although there is no set standard algorithm of testing. The dilemma arises because of the complex genetic mechanisms at the basis of PWS, which need to be elucidated. To establish the molecular mechanism with a complete work up, involves at least 2 tests. Here we discuss the commonly used tests currently available and suggest a cost—effective approach to diagnostic testing. PMID:28164030

  15. Two cases of pontocerebellar hypoplasia: ethical and prenatal diagnostic dilemma.

    Science.gov (United States)

    Ajibola, Ayodeji J; Netzloff, Michael; Samaraweera, Ranji; Omar, Said A

    2010-02-01

    We report the clinical characteristics and the outcome of two cases of pontocerebellar hypoplasia (PCH) in one family. The objective of this report is to describe the mode of presentation, discuss the clinical course, and address the dilemma of prenatal diagnosis and the prospects for genetic diagnosis for PCH. The first case is a 4-year-old boy in whom the diagnosis was made in the neonatal period. Despite extensive prenatal follow-up during the mother's subsequent pregnancy, prenatal diagnosis could not be made and a second affected child was born. Both siblings have severe developmental delay. The cases raise an important ethical dilemma about the most appropriate intervention if the mother of a child affected with PCH becomes pregnant. PCH is considered to have an autosomal-recessive mode of inheritance and a recurrence risk of 25% in each pregnancy. Until recently when genetic mutations in PCH types 2, 4, and 6 began to be identified, the lack of well-recognized genetic testing precluded experts from making clear recommendations. The best advice to these parents was difficult or elusive. With two children currently affected, should the parents terminate or continue with the latest pregnancy? Extensive monitoring with serial prenatal ultrasound failed in the previous pregnancy and resulted in the birth of the second affected child. It is evident that serial ultrasound scan may not be helpful in making the diagnosis prenatally. Therefore, other diagnostic modalities such as magnetic resonance imaging may be necessary and should be considered. With the identification of genetic basis or mutations in PCH types 2, 4, and 6 and possible development of commercial genetic testing for these types of PCH, reproductive decision or genetic testing during pregnancy should be recommended to affected families to enable informed choices. Thieme Medical Publishers.

  16. Resolving the iterated prisoner's dilemma: theory and reality.

    Science.gov (United States)

    Raihani, N J; Bshary, R

    2011-08-01

    Pairs of unrelated individuals face a prisoner's dilemma if cooperation is the best mutual outcome, but each player does best to defect regardless of his partner's behaviour. Although mutual defection is the only evolutionarily stable strategy in one-shot games, cooperative solutions based on reciprocity can emerge in iterated games. Among the most prominent theoretical solutions are the so-called bookkeeping strategies, such as tit-for-tat, where individuals copy their partner's behaviour in the previous round. However, the lack of empirical data conforming to predicted strategies has prompted the suggestion that the iterated prisoner's dilemma (IPD) is neither a useful nor realistic basis for investigating cooperation. Here, we discuss several recent studies where authors have used the IPD framework to interpret their data. We evaluate the validity of their approach and highlight the diversity of proposed solutions. Strategies based on precise accounting are relatively uncommon, perhaps because the full set of assumptions of the IPD model are rarely satisfied. Instead, animals use a diverse array of strategies that apparently promote cooperation, despite the temptation to cheat. These include both positive and negative reciprocity, as well as long-term mutual investments based on 'friendships'. Although there are various gaps in these studies that remain to be filled, we argue that in most cases, individuals could theoretically benefit from cheating and that cooperation cannot therefore be explained with the concept of positive pseudo-reciprocity. We suggest that by incorporating empirical data into the theoretical framework, we may gain fundamental new insights into the evolution of mutual reciprocal investment in nature. © 2011 The Authors. Journal of Evolutionary Biology © 2011 European Society For Evolutionary Biology.

  17. VT Data - Zoning 20120709, Huntington

    Data.gov (United States)

    Vermont Center for Geographic Information — Zoning district data for the Town of Huntington, Vermont. For details regarding each zoning district refer to the current zoning regulations on town of Huntington's...

  18. Promise Zones for Applicants

    Data.gov (United States)

    Department of Housing and Urban Development — This tool assists applicants to HUD's Promise Zone initiative prepare data to submit with their application by allowing applicants to draw the exact location of the...

  19. Speeds in school zones.

    Science.gov (United States)

    2009-02-01

    School speed zones are frequently requested traffic controls for school areas, based on the common belief : that if the transportation agency would only install a reduced speed limit, then drivers would no longer : speed through the area. This resear...

  20. Buffer Zone Fact Sheets

    Science.gov (United States)

    New requirements for buffer zones and sign posting contribute to soil fumigant mitigation and protection for workers and bystanders. The buffer provides distance between the pesticide application site and bystanders, reducing exposure risk.

  1. How culture matters in educational borrowing? Chinese teachers’ dilemmas in a global era

    Directory of Open Access Journals (Sweden)

    Sheng-nan Liu

    2015-12-01

    Full Text Available Educational borrowing may cause numerous dilemmas that emerge from cross-cultural differences among teachers in the globalization. Through the case study on the flipped classroom introduced from the United States into Chinese middle schools, this article presents an examination of dilemmas that teachers encountered during educational borrowing in the global era. Based on the theoretical literature on cultural-historical activity theory, the study used interviews, field observations, and documents from six secondary schools in mainland China for one and a half years to understand comprehensively the dilemmas that teachers encountered when implementing the flipped classroom. The findings indicate that understandings of knowledge production, transmission, and the goal of education in mainland China differ from those in the west, which is the main reason for the teacher dilemmas. Because of the diversity in social culture, we suggest that teachers should be more culturally sensitive and improve compatibility in the process of educational borrowing.

  2. Dealing with Moms and Dads: Family Dilemmas Encountered by Youth Program Leaders

    Directory of Open Access Journals (Sweden)

    Aisha Griffith

    2014-06-01

    Full Text Available The leaders of youth programs encounter a range of challenging situations that involve youth’s parents or families. This qualitative study obtained data on the variety and nature of these family-related “dilemmas of practice.” Longitudinal interviews with leaders of 10 high quality programs for high-school-aged youth yielded narrative information on a sample of 32 family dilemmas that they had encountered. Grounded theory analysis identified four categories of family dilemmas: 1 problems at home that become a concern to the leader, 2 parents’ expectations are incongruent with program norms or functioning, 3 parents do not support youth’s participation in the program or an aspect of the program, and 4 communicating with parents on sensitive matters. Each of these categories of dilemmas entailed distinct considerations and underlying issues that effective leaders need to be able to understand.

  3. Humans choose representatives who enforce cooperation in social dilemmas through extortion

    Science.gov (United States)

    Milinski, Manfred; Hilbe, Christian; Semmann, Dirk; Sommerfeld, Ralf; Marotzke, Jochem

    2016-03-01

    Social dilemmas force players to balance between personal and collective gain. In many dilemmas, such as elected governments negotiating climate-change mitigation measures, the decisions are made not by individual players but by their representatives. However, the behaviour of representatives in social dilemmas has not been investigated experimentally. Here inspired by the negotiations for greenhouse-gas emissions reductions, we experimentally study a collective-risk social dilemma that involves representatives deciding on behalf of their fellow group members. Representatives can be re-elected or voted out after each consecutive collective-risk game. Selfish players are preferentially elected and are hence found most frequently in the `representatives' treatment. Across all treatments, we identify the selfish players as extortioners. As predicted by our mathematical model, their steadfast strategies enforce cooperation from fair players who finally compensate almost completely the deficit caused by the extortionate co-players. Everybody gains, but the extortionate representatives and their groups gain the most.

  4. "Dilemma" o dilemmah / Aleksandra Manukjan, Viktoria Ladõnskaja ; interv. Olga Tarassova

    Index Scriptorium Estoniae

    Manukjan, Aleksandra

    2005-01-01

    Euroopa Liidu PHARE programmi ja produktsioonifirma AA Visioon koostöös loodud kakskeelne saatesari "Dilemma" Eesti Televisiooni eetris. Teleajakirjanikud räägivad saate tegemisest, saatest. Ka Ida-Virumaast, kus tehtud palju probleemsaateid

  5. ETHICAL REASONING: THE IMPACT OF ETHICAL DILEMMA, EGOISM AND BELIEF IN JUST WORLD

    Directory of Open Access Journals (Sweden)

    Mahfooz A. Ansari

    2005-01-01

    Full Text Available Following a 3 [dilemma: coercion and control (CC; conflict of interest (CI; personal integrity (PI] × 2 (egoism: self; organization × 2 (belief in just world (BJW: strong; weak between-subjects factorial design, we hypothesized the main effects of ethical dilemma, egoism, and BJW, and their interaction on ethical reasoning. The first two factors were manipulated by means of six vignettes and the last factor was a subject variable. Experimental participants were 384 managers representing 14 manufacturing organizations. Overall, utilitarian reasoning appeared to be a frequently used type of reasoning in relation to personal integrity dilemma involving self-interest, whereas principled reasoning appeared to be a frequently used reasoning in relation to personal integrity dilemma involving organizational-interest. BJW interacted strongly with the two manipulated factors in predicting ethical reasoning. Implications of the study are discussed, potential caveats are specified and recommendations for future research are provided.

  6. Development Planning & Policies under Mahalanobis Strategy: A Tale of India’s Dilemma

    Directory of Open Access Journals (Sweden)

    Dr. Asim K. Karmakar

    2013-07-01

    In the above backdrop the present paper gives a short review of Mahalanobis strategy of development planning in the context of the then India’s dilemma: dynamic industrialization and static agriculture.

  7. Collaboration Scripts for Mastership Skills: Online game about classroom dilemmas in teacher education

    NARCIS (Netherlands)

    Hummel, Hans; Geerts, Walter; Slootmaker, Aad; Kuipers, Aad; Westera, Wim

    2013-01-01

    Hummel, H. G. K., Geerts, W. M., Slootmaker, A., Kuipers, D., & Westera, W. (in press). Collaboration scripts for mastership skills: Online game about classroom dilemmas in teacher Education. Interactive Learning Environments.

  8. Examination of ethical dilemmas experienced by adult intensive care unit nurses in physical restraint practices.

    Science.gov (United States)

    Yönt, Gülendam Hakverdioğlu; Korhan, Esra Akin; Dizer, Berna; Gümüş, Fatma; Koyuncu, Rukiye

    2014-01-01

    Nurses are more likely to face the dilemma of whether to resort to physical restraints or not and have a hard time making that decision. This is a descriptive study. A total of 55 nurses participated in the research. For data collection, a question form developed by researchers to determine perceptions of ethical dilemmas by nurses in the application of physical restraint was used. A descriptive analysis was made by calculating the mean, standard deviation, and maximum and minimum values. The nurses expressed (36.4%) having difficulty in deciding to use physical restraint. Nurses reported that they experience ethical dilemmas mainly in relation to the ethic principles of nonmaleficence, beneficence, and convenience. We have concluded that majority of nurses working in critical care units apply physical restraint to patients, although they are facing ethical dilemmas concerning harm and benefit principles during the application.

  9. Dynamic noise from action errors enhances network reciprocity in the prisoner's dilemma game

    International Nuclear Information System (INIS)

    Tanimoto, Jun; Ogasawara, Takashi

    2015-01-01

    Inspired by the fact that people make mistakes in a transient, fluctuating or chaotic environment, we establish a spatial prisoner's dilemma model where an agent commits action errors proportionally varying with the increasing/decreasing rate of the global cooperation fraction. A series of numerical simulations reveal that the cooperation level is enhanced in games in which the stag hunt (SH)-type dilemma is dominant; however, it is slightly diminished in games in which the chicken-type dilemma is dominant, compared with the standard network reciprocity model. Intensive analysis reveals that the noise created by the action error contribute to the spatial expansion of a cooperators' cluster, because a dilemma that is less chicken-type and more SH-type makes it disadvantageous for defectors to neighbor cooperators. Our finding, that errors in behavior in a chaotic environment contribute to the evolution of cooperation, might aim to explain the problem of how network reciprocity works. (paper)

  10. Peeling Onions: Some Tools and a Recipe for Solving Ethical Dilemmas.

    Science.gov (United States)

    Gordon, Joan Claire

    1993-01-01

    Presents a process for solving ethical dilemmas: define the problem; identify facts; determine values; "slice" the problem different ways--duties, virtues, rights, and common good; rank ethical considerations; consult colleagues; and take action. (SK)

  11. Preferences and beliefs in a sequential social dilemma: a within-subjects analysis

    Czech Academy of Sciences Publication Activity Database

    Blanco, M.; Engelmann, Dirk; Koch, A. K.; Normann, H.-T.

    2014-01-01

    Roč. 87, September (2014), s. 122-135 ISSN 0899-8256 Institutional support: RVO:67985998 Keywords : beliefs * consensus effect * social dilemma Subject RIV: AH - Economics Impact factor: 1.067, year: 2014

  12. Materialism, Reciprocity and Altruism in the Prisoner's Dilemma - An Evolutionary Analysis

    DEFF Research Database (Denmark)

    Poulsen, Anders; Poulsen, Odile

    2002-01-01

    In this paper we study the evolution of preferences when players are engaged in simultaneous and sequential move Prisoner's Dilemma games. Our results provide some simple insights into the experimentally observed behavior.......In this paper we study the evolution of preferences when players are engaged in simultaneous and sequential move Prisoner's Dilemma games. Our results provide some simple insights into the experimentally observed behavior....

  13. Electronic commerce and logistics: the last mile dilemma reference framework and simulation

    OpenAIRE

    A. Grando; M. Gosso

    2006-01-01

    The electronic commerce companies that are involved in BtoC business and physical goods delivery have to deal with the Last Mile Logistics Dilemma, looking for the most apropriate solutions according to the characteristics of business models and service concepts proposed. To provide some useful suggestions to this dilemma, the article is aimed at: a) highlighting the crucial relationship between such e-commerce aproaches and logistics planning, in which the management of physical flows plays ...

  14. ETHICAL REASONING: THE IMPACT OF ETHICAL DILEMMA, EGOISM AND BELIEF IN JUST WORLD

    OpenAIRE

    Mahfooz A. Ansari; Noor Hazlina Ahmad; Rehana Aafaqi

    2005-01-01

    Following a 3 [dilemma: coercion and control (CC); conflict of interest (CI); personal integrity (PI)] × 2 (egoism: self; organization) × 2 (belief in just world (BJW): strong; weak) between-subjects factorial design, we hypothesized the main effects of ethical dilemma, egoism, and BJW, and their interaction on ethical reasoning. The first two factors were manipulated by means of six vignettes and the last factor was a subject variable. Experimental participants were 384 managers representing...

  15. The Dilemmas of Digital Methodologies:Learning from Work on Young Digital

    OpenAIRE

    Elsley, Susan; Gallagher, Michael; Tisdall, E Kay M

    2014-01-01

    This article explores common dilemmas facing researchers and practitioners who wish to use digital media in research with children and young people. The article explores both cultural-social-economic and material approaches to digital media. These draw attention to five areas, explored in the article, which raise particular dilemmas and opportunities: networked mobility; interoperability and convergence; corporate involvement; confidentiality, anonymity and privacy; and intellectual property ...

  16. Framing Prisoners and Chickens: Valence Effects in the Prisoner's Dilemma and the Chicken Game

    OpenAIRE

    De Heus , Peter; Hoogervorst , Niek; Van Dijk , Eric

    2010-01-01

    International audience; In an experimental study we investigated how decisions in social dilemmas are affected by the valence of outcomes that are at stake. Prospect theory states that individuals are risk averse when outcomes are framed as gains, and risk seeking when outcomes are framed as losses. On the basis of this framework, previous research on social dilemmas has addressed the question of whether people are more cooperative in the negative domain than in the positive domain, but this ...

  17. Prisoner's Dilemma in One-Dimensional Cellular Automata: Visualization of Evolutionary Patterns

    OpenAIRE

    Pereira, Marcelo Alves; Martinez, Alexandre Souto; Espindola, Aquino Lauri

    2007-01-01

    The spatial Prisoner's Dilemma is a prototype model to show the emergence of cooperation in very competitive environments. It considers players, at site of lattices, that can either cooperate or defect when playing the Prisoner's Dilemma with other z players. This model presents a rich phase diagram. Here we consider players in cells of one-dimensional cellular automata. Each player interacts with other z players. This geometry allows us to vary, in a simple manner, the number of neighbors ra...

  18. Coping with the Obligation Dilemma: Prototypes of Social Workers in the Nursing Home

    OpenAIRE

    Lev, Sagit; Ayalon, Liat

    2015-01-01

    We examined the ways in which the social worker is coping with obligation dilemma in an Israeli nursing home. The research was conducted using semi-structured, in-depth interviews carried out with fifteen social workers employed in nursing homes. The interviews were analysed thematically, using constant comparisons. The three themes were concerned with the social worker's place in the nursing home, her relationship with the management and staff, and her coping with the obligation dilemma. The...

  19. Twelve Monkeys, the Kassandra dilemma and innovation diffusion: transdisciplinary lessons for animal and environmental activism

    Directory of Open Access Journals (Sweden)

    Sarah Rutherford Smith

    2014-07-01

    Full Text Available Animal activists and environmental activists believe that the world and its inhabitants face devastating consequences in the future if behaviour towards and the treatment of animals and the environment do not change. However, despite their predictions many people are not swayed to change their behaviour. This article suggests that these activists experience what is known as Kassandra’s dilemma; the conundrum of knowing what the future holds but being unable to prevent events from happening. Drawing on the film, Twelve Monkeys and Greek mythology this article explores this mythological dilemma and explains how this dilemma is a lived experience for activists. The article suggests that activists can resolve Kassandra’s dilemma by taking a transdisciplinary approach towards animal and environmental activism. Thus, in order to escape Kassandra’s dilemma the article suggests that animal and environmental activists require transdisciplinary knowledge; knowledge of the actual and potential harm done to animals and the environment and how this can be prevented as well as knowledge on how to successfully convey this knowledge to others. The article highlights innovation diffusion theory as an example of the type of transdisciplinary knowledge that could assist in escaping from Kassandra’s dilemma and in order to better advocate on behalf of animals and the environment.

  20. Sidetracked by trolleys: Why sacrificial moral dilemmas tell us little (or nothing) about utilitarian judgment.

    Science.gov (United States)

    Kahane, Guy

    2015-01-01

    Research into moral decision-making has been dominated by sacrificial dilemmas where, in order to save several lives, it is necessary to sacrifice the life of another person. It is widely assumed that these dilemmas draw a sharp contrast between utilitarian and deontological approaches to morality, and thereby enable us to study the psychological and neural basis of utilitarian judgment. However, it has been previously shown that some sacrificial dilemmas fail to present a genuine contrast between utilitarian and deontological options. Here, I raise deeper problems for this research paradigm. Even when sacrificial dilemmas present a contrast between utilitarian and deontological options at a philosophical level, it is misleading to interpret the responses of ordinary folk in these terms. What is currently classified as "utilitarian judgment" does not in fact share essential features of a genuine utilitarian outlook, and is better explained in terms of commonsensical moral notions. When subjects deliberate about such dilemmas, they are not deciding between opposing utilitarian and deontological solutions, but engaging in a richer process of weighing opposing moral reasons. Sacrificial dilemmas therefore tell us little about utilitarian decision-making. An alternative approach to studying proto-utilitarian tendencies in everyday moral thinking is proposed.

  1. Ethical and philosophical consideration of the dual-use dilemma in the biological sciences.

    Science.gov (United States)

    Miller, Seumas; Selgelid, Michael J

    2007-12-01

    The dual-use dilemma arises in the context of research in the biological and other sciences as a consequence of the fact that one and the same piece of scientific research sometimes has the potential to be used for bad as well as good purposes. It is an ethical dilemma since it is about promoting good in the context of the potential for also causing harm, e.g., the promotion of health in the context of providing the wherewithal for the killing of innocents. It is an ethical dilemma for the researcher because of the potential actions of others, e.g., malevolent non-researchers who might steal dangerous biological agents, or make use of the original researcher's work. And it is a dilemma for governments concerned with the security of their citizens, as well as their health. In this article we construct a taxonomy of types of "experiments of concern" in the biological sciences, and thereby map the terrain of ethical risk. We then provide a series of analyses of the ethical problems and considerations at issue in the dual-use dilemma, including the impermissibility of certain kinds of research and possible restrictions on dissemination of research results given the risks to health and security. Finally, we explore the main available institutional responses to some of the specific ethical problems posed by the dual-use dilemma in the biological sciences.

  2. Sidetracked by trolleys: Why sacrificial moral dilemmas tell us little (or nothing) about utilitarian judgment

    Science.gov (United States)

    Kahane, Guy

    2015-01-01

    Research into moral decision-making has been dominated by sacrificial dilemmas where, in order to save several lives, it is necessary to sacrifice the life of another person. It is widely assumed that these dilemmas draw a sharp contrast between utilitarian and deontological approaches to morality, and thereby enable us to study the psychological and neural basis of utilitarian judgment. However, it has been previously shown that some sacrificial dilemmas fail to present a genuine contrast between utilitarian and deontological options. Here, I raise deeper problems for this research paradigm. Even when sacrificial dilemmas present a contrast between utilitarian and deontological options at a philosophical level, it is misleading to interpret the responses of ordinary folk in these terms. What is currently classified as “utilitarian judgment” does not in fact share essential features of a genuine utilitarian outlook, and is better explained in terms of commonsensical moral notions. When subjects deliberate about such dilemmas, they are not deciding between opposing utilitarian and deontological solutions, but engaging in a richer process of weighing opposing moral reasons. Sacrificial dilemmas therefore tell us little about utilitarian decision-making. An alternative approach to studying proto-utilitarian tendencies in everyday moral thinking is proposed. PMID:25791902

  3. Effects of Incidental Emotions on Moral Dilemma Judgments: An Analysis Using the CNI Model.

    Science.gov (United States)

    Gawronski, Bertram; Conway, Paul; Armstrong, Joel; Friesdorf, Rebecca; Hütter, Mandy

    2018-02-01

    Effects of incidental emotions on moral dilemma judgments have garnered interest because they demonstrate the context-dependent nature of moral decision-making. Six experiments (N = 727) investigated the effects of incidental happiness, sadness, and anger on responses in moral dilemmas that pit the consequences of a given action for the greater good (i.e., utilitarianism) against the consistency of that action with moral norms (i.e., deontology). Using the CNI model of moral decision-making, we further tested whether the three kinds of emotions shape moral dilemma judgments by influencing (a) sensitivity to consequences, (b) sensitivity to moral norms, or (c) general preference for inaction versus action regardless of consequences and moral norms (or some combination of the three). Incidental happiness reduced sensitivity to moral norms without affecting sensitivity to consequences or general preference for inaction versus action. Incidental sadness and incidental anger did not show any significant effects on moral dilemma judgments. The findings suggest a central role of moral norms in the contribution of emotional responses to moral dilemma judgments, requiring refinements of dominant theoretical accounts and supporting the value of formal modeling approaches in providing more nuanced insights into the determinants of moral dilemma judgments. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

  4. Sustainable renovation of residential buildings and the landlord/tenant dilemma

    International Nuclear Information System (INIS)

    Ástmarsson, Björn; Jensen, Per Anker; Maslesa, Esmir

    2013-01-01

    The landlord/tenant dilemma arises when the interests of landlords and tenants misalign and is one of the greatest barriers hindering the development of sustainable renovation of residential buildings in Europe. The aim of this research is to investigate how regulatory changes and contractual solutions can help solve the landlord/tenant dilemma in relation to sustainable renovation of residential buildings, and how the general awareness of sustainable renovation can be increased. Particular focus is on whether tools like energy performance contracting and energy labeling can help solve the landlord/tenant dilemma. The research was done in relation to the specific situation in Denmark, but theory, information and experiences from other countries were included. The results show that there are plenty of opportunities to overcome the landlord/tenant dilemma, but principal/agent problems can only be overcome with a package solution. In the Danish national context the package solution must consist of legislative changes, financial incentives and better dissemination of information. Therefore, an array of different tools must be integrated and used in cooperation to overcome the dilemma. - Highlights: • There are plenty of opportunities to overcome the landlord/tenant dilemma. • The principal/agent problems can only be overcome with a package solution. • An array of different tools must be integrated and used in cooperation. • Legislative changes, financial incentives and better dissemination of information

  5. Ethical dilemmas in geosciences. We can ask, but, can we ans?

    Science.gov (United States)

    Marone, Eduardo

    2016-04-01

    Philosophy tries to provide rules and principles enabling us to solve the ethical dilemmas we face in a wide sense, and, also, in particular fields as (geo)sciences. One alleged goal of ethics is to figure out how to solve ethical dilemmas. But, is it possible to solve such dilemmas? And what can we do if we cannot? An ethical dilemma is a problem that offers an alternative between two or more solutions, none of which proves to be fully acceptable in practice. Dilemmas arise because of conflict between the rightness or wrongness of the actions/means and the goodness or badness of the consequences/ends. They involve an apparent conflict between moral imperatives, in which to follow one would result in violating another. Can a geoscientist answer those dilemmas that appear in the exercise of his/her profession? Always? In some cases? Not at all? What if we cannot? Have we? As geoscientists, we hold the knowledge (our scientific principles), not perfect, thus fallible, and always subject to changes and improvements. If we have to do what is right, based on our principles, despite potentially bad consequences, then we have to be sure that the principle is an absolute true. But, are our scientific principles such a true? Deontological theories may deny that consequences are of any concern, provided the intention was a good one. However, if our principles are not perfect (and we know that): can we answer in one or other direction to geoethical dilemmas in good faith? Although, if a geoscientist action does usually go for the best consequences, sometimes bad consequences may be accepted. But, who have to decide to accept the bad consequences? If ethical dilemmas with a conflict between means and ends cannot simply be solved by a geoscientist, where is our duty? If there is no real solution to the conflict of the right with the good, in the sense that a solution usually seems to be expected, what has to be our professional attitude? When we have duties of omission and when

  6. Acute Organophosphate Poisonings: Therapeutic Dilemmas and New Potential Therapeutic Agents

    International Nuclear Information System (INIS)

    Vucinic, S.; Jovanovic, D.; Vucinic, Z.; Todorovic, V.; Segrt, Z.

    2007-01-01

    It has been six decades since synthesis of organophosphates, but this chapter has not yet come to a closure. Toxic effects of organophosphates are well known and the current therapeutic scheme includes supportive therapy and antidotes. There is a dilemma on whether and when to apply gastric lavage and activated charcoal. According to Position Statement (by EAPCCT) it should be applied only if the patient presents within one hour of ingestion, with potentially lethal ingested dose. Atropine, a competitive antagonist of acetylcholine at m-receptors, which antagonizes bronchosecretion and bronchoconstriction, is the corner stone of acute organophosphate poisoning therapy. There were many attempts to find a more efficient drug, including glycopyrrolate which has been used even in clinical trials, but it still can not replace atropine. The only dilemma about atropine usage which still exists, concerns usage of high atropine dose and scheme of application. The most efficient atropinization is achieved with bolus doses of 1-2mg of atropine i.v push, with repeating the dose on each 5 minutes until signs of atropinization are registered. Diazepam, with its GABA stabilizing effect, reduces central nervous system damage and central respiratory weakness. Oximes reactivate phosphorylated acetylcholinesterase, which still has not gone ageing, reducing acetylcholine concentration and cholinergic crisis. These effects are clearly demonstrated in experimental conditions, but the clinical significance of oximes is still unclear and there are still those who question oxime therapy. For those who approve it, oxime dosage, duration of therapy, the choice of oxime for certain OP is still an open issue. We need new, more efficient antidotes, and those that are in use are only the small part of the therapy which could be used. Experimental studies show favorable therapeutic effect of many agents, but none of them has been introduced in standard treatment of OPI poisoning in the last 30

  7. Zones of emotional labour

    DEFF Research Database (Denmark)

    Strøbæk, Pernille Solveig

    2011-01-01

    The paper suggests that due to the difficult nature of their work public family law caseworkers are to be included in the definition of emotional labour even though they are omitted by Hochschild. Based upon a review of the structures involved in emotional labour an explorative qualitative study...... is put forth among 25 Danish public family law caseworkers. The study points to personal, professional, and social zones of emotional labour through which the caseworkers carry out their work. Emotional labour zones mark emotion structures that may be challenging due to complex emotional intersections...

  8. Nuclear free zone

    International Nuclear Information System (INIS)

    Christoffel, T.

    1987-01-01

    Health professionals have played a leading role in alerting and educating the public regarding the danger of nuclear war which has been described as the last epidemic our civilization will know. Having convinced most people that the use of nuclear weapons would mean intolerable consequences, groups such as Physicians for Social Responsibility have focused on the second critical question how likely is it that these weapons will be used? The oultlook is grim. This article describes the nuclear free zone movement, explores relevant legal questions, and shows how the political potential of nuclear free zones threatens to open a deep rift in the American constitutional system

  9. Optimal exploration target zones

    CSIR Research Space (South Africa)

    Debba, Pravesh

    2008-09-01

    Full Text Available -of-evidence (WofE) method logistic regression canonical favorability analysis neural networks evidential belief functions Optimal Exploration Target Zones Debba, Carranza, Stein, van der Meer Introduction to Remote Sensing Background and Objective of the study... for the following equation: n∑ i=r ( n i ) pi(1− p)n−i = 0.95 . (1) Optimal Exploration Target Zones Debba, Carranza, Stein, van der Meer Introduction to Remote Sensing Background and Objective of the study Methodology Results METHODS (cont. . . ): FITNESS FUNCTION...

  10. Dike zones on Venus

    Science.gov (United States)

    Markov, M. S.; Sukhanov, A. L.

    1987-01-01

    Venusian dike zone structures were identified from Venera 15 and 16 radar images. These include: a zone of subparallel rows centered at 30 deg N, 7 deg E; a system of intersecting bands centered at 67 deg N, 284 deg E; polygonal systems in lavas covering the structural base uplift centered at 47 deg N, 200 deg E; a system of light bands in the region of the ring structure centered at 43 deg N, 13 deg E; and a dike band centered at 27 deg N, 36 deg E.

  11. Korean nurses' ethical dilemmas, professional values and professional quality of life.

    Science.gov (United States)

    Kim, Kyunghee; Han, Yonghee; Kim, Ji-su

    2015-06-01

    In the changing medical environment, professional stress continuously increases as the individual's quality of life suffers. Of all the healthcare professions, nursing is especially prone to burnout, compassion fatigue and reduced compassion satisfaction, due to the tensions resulting from the physical and psychological stress of caring for extremely ill patients. This study examined the professional quality of life of clinical nurses in Korea and the relationship between their experiences in ethical dilemmas and professional values. This was a cross-sectional study of a convenience sample consisting of 488 clinical nurses. We used four questionnaires to measure the participants' demographic characteristics, experiences in ethical dilemmas, professional nursing values and professional quality of life (ProQOL assessment, Version 5). Ethical considerations: This study received approval from the Institutional Review Board of Bronco Memorial Hospital. Written informed consent was given by all participants. The nurses' professional quality of life was affected by ethical dilemmas and professional nursing values. The factors influencing compassion satisfaction were age, client domain of ethical dilemmas, social awareness, professionalism of nursing and the roles of nursing services in professional values. The factors influencing burnout were marital status (married), religion (yes), human life domain, professional work domain of ethical dilemmas, social awareness and the role of nursing services in nursing professional values. The factors influencing secondary traumatic stress were human life domain, client domain and the professional work domain of ethical dilemmas. Intervention to help nurses increase their professional quality of life will have a greater chance of success if they are based on the nurses' values and beliefs about the ethical dilemmas they face and foster the establishment of positive professional values. © The Author(s) 2014.

  12. Australia Ama Ata Aidoo's Diagnose and Representation of the Dilemma of the African American Diaspora in Her Play "Dilemma of a Ghost"

    Science.gov (United States)

    Al-Khafaji, Ammar Shamil Kadhim

    2018-01-01

    The research investigates in details about the influence of cultural differences in Postcolonial Ghana as presented in Ama Ata Aidoo's "Dilemma of a Ghost". The play centers on the cross cultural marriage of young couple; Ato Yawson, a Ghanaian who recently completed his studies in the United States and returns home, and Eulali, his…

  13. [Dilemma of null hypothesis in ecological hypothesis's experiment test.

    Science.gov (United States)

    Li, Ji

    2016-06-01

    Experimental test is one of the major test methods of ecological hypothesis, though there are many arguments due to null hypothesis. Quinn and Dunham (1983) analyzed the hypothesis deduction model from Platt (1964) and thus stated that there is no null hypothesis in ecology that can be strictly tested by experiments. Fisher's falsificationism and Neyman-Pearson (N-P)'s non-decisivity inhibit statistical null hypothesis from being strictly tested. Moreover, since the null hypothesis H 0 (α=1, β=0) and alternative hypothesis H 1 '(α'=1, β'=0) in ecological progresses are diffe-rent from classic physics, the ecological null hypothesis can neither be strictly tested experimentally. These dilemmas of null hypothesis could be relieved via the reduction of P value, careful selection of null hypothesis, non-centralization of non-null hypothesis, and two-tailed test. However, the statistical null hypothesis significance testing (NHST) should not to be equivalent to the causality logistical test in ecological hypothesis. Hence, the findings and conclusions about methodological studies and experimental tests based on NHST are not always logically reliable.

  14. Thalassaemia Trait with Gaucher Disease: A Diagnostic Dilemma.

    Science.gov (United States)

    Kini, Jyoti Ramnath; Sreeram, Saraswathy; Hegde, Anupama; Kamath, Sowmini; Pai, Radha Ramachandra

    2017-09-01

    Gaucher Disease is an autosomal recessive disease caused by the accumulation of glucocerebrosidase due to deficiency in lysosomal glucocerebrosidase. Thalassaemia trait is asymptomatic and is usually an incidental diagnosis. Both thalassaemia and Gaucher disease can have similar haematologic manifestations and hence, their coexistence causes diagnostic dilemma. Our patient presented at one-and-a-half years with weakness, pallor, failure to thrive and massive hepatosplenomegaly. Clinical examination and history pointed to a lipid storage disease. Peripheral smear revealed microcytic hypochromic cells and nucleated red cells with haemolytic blood picture. Thalassaemia trait was indicated on haemoglobin variant analysis using High Performance Liquid Chromatography. Liver biopsy, bone marrow aspirate and therapeutic splenectomy revealed Gaucher-like cells. Type 1 Gaucher disease can be clinically asymptomatic as well as present with massive liver and spleen enlargement and involvement of bone marrow. Anaemia, splenomegaly and thrombocytopenia are the usual presentations at diagnosis, similar to the haemoglobinopathies. Gaucher-like cells with normal beta-glucocerebrosidase (pseudo-Gaucher cells) are seen in thalassaemia, leukaemia, mycobacterial infections and myeloma. Gaucher disease coexisting with thalassaemia trait is uncommon. We report the occurrence of thalassaemia trait and Gaucher disease in a child, which resulted in confusion regarding the haematological diagnosis. This report highlights the necessity of independent establishment of the diagnosis in every patient so that appropriate management decisions are taken.

  15. Environmental influences on cooperation in social dilemmas on networks

    Science.gov (United States)

    Xie, Yunya; Chang, Shuhua; Yan, Ming; Zhang, Zhipeng; Wang, Xinyu

    2018-02-01

    Environmental influence on cooperation is a classical topic that is widely applicable to social interactions. Here, we introduce a realistic model which depends on both the payoff and the strategy of the environment. As the strategy of the environment rather than the neighbor is imitated with a probability, the model takes more attention on the comprehensive influence of the nearby neighbors. The simulation results show that the cooperation level can be widely enhanced for the prisoner's dilemma game and the snowdrift game with this environment factor. In this environmental model, the mechanism of the survival of cooperators is deeply studied, and the corresponding results can be derived. Although the survival of cooperators also depends on the formation of the cooperator clusters, the enhancement of the cooperation level can be interpreted as the accumulation effect of the transformation of defection into cooperation. Interestingly, there exists a threshold of the initial fraction of the cooperators, and the cooperation increases significantly when this threshold is reached Moreover, the square cooperative cluster is stable, and robust against different levels of the noise parameter and temptation in the strategy adoption process. This work may shed light on the mechanism of cooperation in the real world.

  16. The exploration-exploitation dilemma: a multidisciplinary framework.

    Directory of Open Access Journals (Sweden)

    Oded Berger-Tal

    Full Text Available The trade-off between the need to obtain new knowledge and the need to use that knowledge to improve performance is one of the most basic trade-offs in nature, and optimal performance usually requires some balance between exploratory and exploitative behaviors. Researchers in many disciplines have been searching for the optimal solution to this dilemma. Here we present a novel model in which the exploration strategy itself is dynamic and varies with time in order to optimize a definite goal, such as the acquisition of energy, money, or prestige. Our model produced four very distinct phases: Knowledge establishment, Knowledge accumulation, Knowledge maintenance, and Knowledge exploitation, giving rise to a multidisciplinary framework that applies equally to humans, animals, and organizations. The framework can be used to explain a multitude of phenomena in various disciplines, such as the movement of animals in novel landscapes, the most efficient resource allocation for a start-up company, or the effects of old age on knowledge acquisition in humans.

  17. Old Dilemmas Renewed: Fear of Freedom vs. Freedom from Fear

    Directory of Open Access Journals (Sweden)

    Aleksandra Gruszczyk

    2016-07-01

    Full Text Available Contemporary societies are currently subjected to very rapid and radical social changes and, as a consequence, struggle with their outcomes. The results range from the unforeseen repercussions of globally shifting political powers, through rising nationalisms, to prolonged economic, environmental, political and humanitarian crises. Critical analysis of the theories focused on the phenomena of authoritarianism, escapism, political myth, and conformity allows for outlining a comprehensive picture of the universally recognized opposition between freedom and security. From the distinction between the positive and negative freedom to the ambiguity surrounding the concept of “freedom from fear”, the fundamental dilemma is viewed from a historical perspective and illustrated with modern examples, emphasizing its current validity, insightfulness and potential in analyzing contemporary global problems. This approach allows for in-depth analyses of diversified social and political issues, such as the North African-European refugee crisis, rising nationalisms in the Western world, or a marked shift in political and social perspectives worldwide, from modern escapism to the birth of new myths of state.

  18. Balancing nanotoxicity and returns in health applications: The Prisoner's Dilemma.

    Science.gov (United States)

    Gkika, D A; Magafas, L; Cool, P; Braet, J

    2018-01-15

    Over the past 30 years, there have been significant advancements in the field of nanomaterials. The possibility to use them in applications such as cancer treatment is extremely promising; however, the toxicity of many nanomaterials as well as the high costs associated with their use is still a concern. This paper aims to study the connection between nanomaterial toxicity and cost. This synergy may be interpreted as a different version of the classic "Prisoner's Dilemma" game, which in this case attempts to explain the possible outcomes of cooperation versus conflict between science advocating for the use of high-risk, possibly toxic materials due to their high returns, and society that might be dubious about the use of high-risk materials. In an effort to create diverse evaluation methodologies, this work uses a forecast horizon to evaluate the current status and expected future of the nanomaterials market. The historical progress of each market, toxicity information, and possible returns stemming from their use is taken into account to analyze the predictions. Our results suggest various trends for the associated costs and nanotoxicity of the studied materials. Copyright © 2017 Elsevier B.V. All rights reserved.

  19. Cooperation percolation in spatial prisoner's dilemma game

    International Nuclear Information System (INIS)

    Yang, Han-Xin; Rong, Zhihai; Wang, Wen-Xu

    2014-01-01

    The paradox of cooperation among selfish individuals still puzzles scientific communities. Although a large amount of evidence has demonstrated that the cooperator clusters in spatial games are effective in protecting the cooperators against the invasion of defectors, we continue to lack the condition for the formation of a giant cooperator cluster that ensures the prevalence of cooperation in a system. Here, we study the dynamical organization of the cooperator clusters in spatial prisoner's dilemma game to offer the condition for the dominance of cooperation, finding that a phase transition characterized by the emergence of a large spanning cooperator cluster occurs when the initial fraction of the cooperators exceeds a certain threshold. Interestingly, the phase transition belongs to different universality classes of percolation determined by the temptation to defect b. Specifically, on square lattices, 1 < b < 4/3 leads to a phase transition pertaining to the class of regular site percolation, whereas 3/2 < b < 2 gives rise to a phase transition subject to invasion percolation with trapping. Our findings offer a deeper understanding of cooperative behavior in nature and society. (paper)

  20. Changing intensity of interaction can resolve prisoner's dilemmas

    Science.gov (United States)

    Li, Jiaqi; Zhang, Chunyan; Sun, Qinglin; Chen, Zengqiang; Zhang, Jianlei

    2016-03-01

    We put forward a computational model which mainly focuses on the effect of changing the intensity of interaction between individuals to study the evolutionary prisoner's dilemma game in social networks. In this model, an individual will unilaterally increase the intensity of interaction from it to some of its neighbors in case it is satisfied with the current income which it obtains from the neighbor; conversely, the individual will unilaterally reduce the intensity of interaction from it to its neighbor. We show that this simple evolutionary rule can effectively shift the survival barrier of cooperators and drastically facilitate the emergence of cooperation. Interestingly, for a fixed temptation to defect, there exists the smallest increment of intensity of interaction, resulting in a plateau of high cooperation level due to the positive feedback mechanism. Furthermore, we find good agreement between simulation results and theoretical predictions obtained from an extended pair-approximation method. Meanwhile, we illustrate the dynamical evolution of cooperators on the network, and investigate the impact of noise during the strategy updates.

  1. Care-managers' professional choices: ethical dilemmas and conflicting expectations.

    Science.gov (United States)

    Tønnessen, Siri; Ursin, Gøril; Brinchmann, Berit Støre

    2017-09-07

    Care-managers are responsible for the public administration of individual healthcare decisions and decide on the volume and content of community healthcare services given to a population. The purpose of this study was to investigate the conflicting expectations and ethical dilemmas these professionals encounter in their daily work with patients and to discuss the clinical implications of this. The study had a qualitative design. The data consisted of verbatim transcripts from 12 ethical reflection group meetings held in 2012 at a purchaser unit in a Norwegian city. The participants consist of healthcare professionals such as nurses, occupational therapists, physiotherapists and social workers. The analyses and interpretation were conducted according to a hermeneutic methodology. This study is part of a larger research project. Two main themes emerged through the analyses: 1. Professional autonomy and loyalty, and related subthemes: loyalty to whom/what, overruling of decisions, trust and obligation to report. 2. Boundaries of involvement and subthemes: private or professional, care-manager or provider and accessibility. Underlying values and a model illustrating the dimensions of professional responsibility in the care-manager role are suggested. The study implies that when allocating services, healthcare professionals need to find a balance between responsibility and accountability in their role as care-managers.

  2. Gingival fibroma versus verrucous leukoplakia – A clinical dilemma!!!

    Directory of Open Access Journals (Sweden)

    Renu Garg

    2016-01-01

    Full Text Available Gingival overgrowths found in the oral cavity are mostly due to reactive hyperplasia and rarely depict neoplastic nature. It is a challenge for the clinician to give final diagnoses of gingival overgrowth. Gingiva is a common site for various benign and malignant lesions. Oral cavity is an ideal niche for the manifestation of various precancerous and cancerous lesions. Fibrous growths present in the oral cavity include a varying group of reactive, precancerous, and cancerous conditions. This report describes a case of a 55-year-old male who clinically presented with a localized fibromatous gingival overgrowth in relation to lower left mandibular canine-premolar region that was diagnosed as a gingival fibroma associated with leukoplakia. On histopathological examination, it was diagnosed as a case of proliferative verrucous leukoplakia. Many a times, clinicians face dilemma while diagnosing an overgrowth as it is difficult to differentiate clinically. Hence, a thorough clinical knowledge and a pathologist's opinion become mandatory to give final diagnosis to such gingival overgrowths.

  3. Active Player Modeling in the Iterated Prisoner's Dilemma.

    Science.gov (United States)

    Park, Hyunsoo; Kim, Kyung-Joong

    2016-01-01

    The iterated prisoner's dilemma (IPD) is well known within the domain of game theory. Although it is relatively simple, it can also elucidate important problems related to cooperation and trust. Generally, players can predict their opponents' actions when they are able to build a precise model of their behavior based on their game playing experience. However, it is difficult to make such predictions based on a limited number of games. The creation of a precise model requires the use of not only an appropriate learning algorithm and framework but also a good dataset. Active learning approaches have recently been introduced to machine learning communities. The approach can usually produce informative datasets with relatively little effort. Therefore, we have proposed an active modeling technique to predict the behavior of IPD players. The proposed method can model the opponent player's behavior while taking advantage of interactive game environments. This experiment used twelve representative types of players as opponents, and an observer used an active modeling algorithm to model these opponents. This observer actively collected data and modeled the opponent's behavior online. Most of our data showed that the observer was able to build, through direct actions, a more accurate model of an opponent's behavior than when the data were collected through random actions.

  4. Gender, trust and cooperation in environmental social dilemmas.

    Science.gov (United States)

    Irwin, Kyle; Edwards, Kimberly; Tamburello, Jeffrey A

    2015-03-01

    This research addresses gender differences in environmental protection efforts. Recent work indicates that, across a variety of domains, women are more generous, charitable, and prosocial than men. Despite above-average levels of these motivators for cooperation, considerable experimental research points to no difference in cooperation between genders. What can explain women's lower-than-expected cooperation levels? Prior research indicates that, compared to men, women are less trusting and respond to fear incentives in social dilemmas - they are concerned about being exploited. We test these arguments in the context of environmental behaviors and argue that lower trust and greater responses to fear incentives mean that women's cooperation is predicated on trust. For men, trust does not predict environmental cooperation. The current research represents the first empirical test of these arguments. Using data from the General Social Survey we focus on private sphere behaviors and political participation and predict an interaction between gender and trust on cooperation. Results support this prediction. Copyright © 2014 Elsevier Inc. All rights reserved.

  5. Prior knowledge in recalling arguments in bioethical dilemmas

    Directory of Open Access Journals (Sweden)

    Hiemke Katharina Schmidt

    2015-09-01

    Full Text Available Prior knowledge is known to facilitate learning new information. Normally in studies confirming this outcome the relationship between prior knowledge and the topic to be learned is obvious: the information to be acquired is part of the domain or topic to which the prior knowledge belongs. This raises the question as to whether prior knowledge of various domains facilitates recalling information. In this study 79 eleventh-grade students completed a questionnaire on their prior knowledge of seven different domains related to the bioethical dilemma of prenatal diagnostics. The students read a text containing arguments for and arguments against prenatal diagnostics. After one week and again 12 weeks later they were asked to write down all the arguments they remembered. Prior knowledge helped them recall the arguments one week (r = .350 and 12 weeks (r = .316 later. Prior knowledge of three of the seven domains significantly helped them recall the arguments one week later (correlations between r = .194 to r = .394. Partial correlations with interest as a control item revealed that interest did not explain the relationship between prior knowledge and recall. Prior knowledge of different domains jointly supports the recall of arguments related to bioethical topics.

  6. The delegate's dilemma: ACAT re-assessment in hostels.

    Science.gov (United States)

    Poole, J

    2000-01-01

    The provision for 'ageing in place' in the Aged Care Act of 1997 has provided an opportunity for hostel facilities to broaden their scope of care for older people. Aged Care Assessment Teams (ACATs) are required to provide assessments to give approval for high or low level entry to these facilities, and to provide approval for reclassification from low to high care. However, guidelines for ACAT assessments are contradictory with respect to the Resident Classification Scale (RCS) which provides the facility funding formula, thus creating gatekeeping compared with advocacy difficulties for the ACAT. If the facility can support a claim of high care need for a resident via the RCS but the ACAT (using different and less in-depth criteria) does not agree with that claim, then the care of that resident might be compromised due to inadequate funding. Recommendations made to solve this dilemma include conferring the right of the hostel staff to reclassify residents when necessary, with the responsibility for confirmation of that classification to remain with the trained validation officers from the Commonwealth Department of Health and Family Services, not the ACAT.

  7. The Swedish dilemma - Nuclear energy v. the environment

    Energy Technology Data Exchange (ETDEWEB)

    Nordhaus, W D [Yale Univ. (United States)

    1995-11-01

    A phaseout of nuclear power in Sweden is supposed to be accomplished by year 2010. This study is an economic analysis of the questions that are parts of the nuclear dilemma. Even though the economic questions are in focus, the important environmental, health and safety questions are also treated. The basic argument is that Sweden should choose an energy system that allows its citizens to maximize their consumption in a long-term perspective. Consumption is here given a meaning that includes elements outside the market, such as environmental, health and safety aspects valued in a reasonable way. Considerations must also be given to international aspects like global environment, a free and open system of trade and the value of a stable set of rules and proprietary rights. The study compares the economic pros and cons of different energy systems within this general frame. A detailed model of the Swedish energy and power sectors was developed for the study, called the Swedish Energy and Environment Policy (SEEP) model. the SEEP model is built on modern economic theory and includes energy and environmental factors in a uniform way. 8 figs 16 tabs.

  8. Freedom or security - the unsolvable dilemma of atomic energy

    International Nuclear Information System (INIS)

    Rossnagel, A.

    1989-01-01

    The threat of a non-peaceful use of atomic energy is not a fixed quantity. The hazard may increase depending on the social situation and the insentity of social crises emerging. In view of the damage potential involved with atomic energy, the principle of 'dynamic protection of civil rights' requires security measures to be intensified according to growing threat. The restrictions of freedom connected with enhanced security measures are to be felt already today. The pressure for security of nuclear installations or material creates a dilemma: any security step-up will be done at the expense of freedom, and conserving freedom will mean reducing security. The pressure for security which is achieved by the instruments of balancing the objects of legal protection and following the principle of reasonablenesse, will eventually lead to a de facto decline of the civil rights by way of a clandestine and gradual change of legal terms and definitions. We even then would be living in a constitutional state. But what will freedom then mean? The civil rights would still be incorporated in our Basic Law, but protection in practical life will have been decreased. (orig./HSCH) [de

  9. The Swedish dilemma - Nuclear energy v. the environment

    International Nuclear Information System (INIS)

    Nordhaus, W.D.

    1995-11-01

    A phaseout of nuclear power in Sweden is supposed to be accomplished by year 2010. This study is an economic analysis of the questions that are parts of the nuclear dilemma. Even though the economic questions are in focus, the important environmental, health and safety questions are also treated. The basic argument is that Sweden should choose an energy system that allows its citizens to maximize their consumption in a long-term perspective. Consumption is here given a meaning that includes elements outside the market, such as environmental, health and safety aspects valued in a reasonable way. Considerations must also be given to international aspects like global environment, a free and open system of trade and the value of a stable set of rules and proprietary rights. The study compares the economic pros and cons of different energy systems within this general frame. A detailed model of the Swedish energy and power sectors was developed for the study, called the Swedish Energy and Environment Policy (SEEP) model. the SEEP model is built on modern economic theory and includes energy and environmental factors in a uniform way. 8 figs 16 tabs

  10. Considering ethical dilemmas related to brain death in newborns

    Directory of Open Access Journals (Sweden)

    Ilias Chatziioannidis

    2014-01-01

    Full Text Available Brain death (BD, as the irreversible and permanent loss of cerebral and brainstem function, is relatively uncommon among newborns who need life support. It is considered the result of an acute and irreversible central nervous system insult. Asphyxia, severe intracranial hemorrhage and infection are the most common causes of  BD in children. BD diagnosis is usually based on clinical criteria. Dilemmas about life prolonging treatment for severely compromised infants – as brain dead infants are – has become challenging since neonatal intensive care unit (NICU care has developed, quality of life and resource issues are nowadays continuously underlined. Caring for premature babies is expensive and costs have risen especially since an increased number of infants with handicaps survives. Intensivists’ main duty is first to save lives and then to interrupt treatment in certain conditions like detrimental brain damage. The objective of this article is to present ethical decisions regarding brain dead newborns in order to balance between organ donation necessities and withholding/withdrawing treatment, with respect to the important role of infants’ parents in the process.

  11. The Swedish Dilemma: Nuclear Energy v. the Environment

    International Nuclear Information System (INIS)

    Nordhaus, W.D.

    1995-01-01

    A phaseout of nuclear power in Sweden is supposed to be accomplished by year 2010. This study is an economic analysis of the questions that are parts of the Swedish nuclear dilemma. Even though the economic questions are in focus, the important environmental, health and safety questions are also treated. The basic argument is that Sweden should choose an energy system that allows its citizens to maximize their consumption in a long-term perspective. Consumption is here given a meaning that includes elements outside the market, such as environmental, health and safety aspects valued in a reasonable way. Considerations must also be given to international aspects like global environment, a free and open system of trade and the value of a stable set of rules and proprietary rights. The study compares the economic pros and cons of different energy systems within this general frame. A detailed model of the Swedish energy and power sectors was developed for the study, called the Swedish Energy and Environment Policy (SEEP) model. The SEEP model is built on modern economic theory and includes energy and environmental factors in a uniform way. 51 refs, 36 tabs, 6 figs

  12. Dilemmas in Military Medical Ethics: A Call for Conceptual Clarity

    Directory of Open Access Journals (Sweden)

    Rochon, Christiane

    2015-12-01

    Full Text Available Despite the increase in and evolving nature of armed conflicts, the ethical issues faced by military physicians working in such contexts are still rarely examined in the bioethics literature. Military physicians are members of the military, even if they are non-combatants; and their role is one of healer but also sometimes humanitarian. Some scholars wonder about the moral compatibility of being both a physician and soldier. The ethical conflicts raised in the literature regarding military physicians can be organized into three main perspectives: 1 moral problems in military medicine are particular because of the difficulty of meeting the requirements of traditional bioethical principles; 2 medical codes of ethics and international laws are not well adapted to or are too restrictive for a military context; and 3 physicians are social actors who should either be pacifists, defenders of human rights, politically neutral or promoters of peace. A review of the diverse dilemmas faced by military physicians shows that these differ substantially by level (micro, meso, macro, context and the actors involved, and that they go beyond issues of patient interests. Like medicine in general, military medicine is complex and touches on potentially contested views of the roles and obligations of the physician. Greater conceptual clarity is thus needed in discussions about military medical ethics.

  13. Negative workplace behaviours: an ethical dilemma for nurse managers.

    Science.gov (United States)

    Lindy, Cheryl; Schaefer, Florence

    2010-04-01

    To discover nurse managers' perception of negative workplace behaviours (bullying) encountered by staff on their unit. Background Negative workplace behaviour is a worldwide phenomenon happening in all types of work settings. Absent from the literature were studies specific to the nurse managers' perception on this topic. A phenomenological qualitative research methodology was used to gain insight into the perceptions of nurse managers about negative workplace behaviours that they have observed or addressed. Nurse Managers described their perceptions of, and experiences pertaining to, instances of negative workplace behaviour. Six themes emerged from the data analysis: 'that's just how she is', 'they just take it', 'a lot of things going on', 'old baggage', 'three sides to a story' and 'a management perspective'. Nurse Managers had observed, experienced and/or had received reports of negative workplace behaviours. While some felt comfortable addressing the behaviour, others experienced ethical dilemmas when trying to treat all fairly. The results of the present study provide guidance for nurse managers to address negative workplace behaviours occurring on their units.

  14. Dilemmas, Confusion, and Misconceptions Related to Small Airways Directed Therapy

    DEFF Research Database (Denmark)

    Lavorini, Federico; Pedersen, Søren; Usmani, Omar S.

    2017-01-01

    During the past decade, there has been increasing evidence that the small airways (ie, airways < 2 mm in internal diameter) contribute substantially to the pathophysiologic and clinical expression of asthma and COPD. The increased interest in small airways is, at least in part, a result of innova......During the past decade, there has been increasing evidence that the small airways (ie, airways COPD. The increased interest in small airways is, at least in part, a result...... of innovation in small-particle aerosol formulations that better target the distal lung and also advanced physiologic methods of assessing small airway responses. Increasing the precision of drug deposition may improve targeting of specific diseases or receptor locations, decrease airway drug exposure...... benefit, compared with large-particle aerosol treatment. However, a number of questions remain unanswered about the pragmatic approach relevant for clinicians to consider the role of small airways directed therapy in the day-to-day management of asthma and COPD. We thus have tried to clarify the dilemmas...

  15. Relational Diversity Promotes Cooperation in Prisoner’s Dilemma Games

    Science.gov (United States)

    Xu, Bo; Wang, Jianwei; Deng, Ruipu; Li, Miao

    2014-01-01

    Relational diversity can be characterized by heterogeneous distributions of tie strengths in social networks and this diversity is present not only among humans, but throughout the animal world. We account for this observation by analyzing two network datasets from Facebook. We measure the strength of a tie by calculating the extent of overlap of friends between the two individuals. Based on the previous findings in human experiments, we argue that it is very unlikely that players will allocate their investments equally to their neighbors. There is a tendency that players prefer to donate more to their intimate friends. We find that if players preferentially allocate their investments to their good friends, cooperation will be promoted in PDG. We proved that the facilitation of the cooperative strategy relies mostly on the cooperative allies between best friends, resulting in the formation of cooperative clusters which are able to prevail against the defectors even when there is a large cost to cooperate. Moreover, we discover that the effect of relational diversity cannot be analyzed by adopting classical complex networks models, because neither of the artificial networks is able to produce networks with diverse distributions of tie strengths. It is of vital importance to introduce real social networks to study the influence of diverse relations especially when it comes to humans. This research proposes a brand new perspective to understand the influence of social relations on the emergence of cooperation in evolutionary prisoner’s dilemma games. PMID:25474354

  16. Active Player Modeling in the Iterated Prisoner’s Dilemma

    Directory of Open Access Journals (Sweden)

    Hyunsoo Park

    2016-01-01

    Full Text Available The iterated prisoner’s dilemma (IPD is well known within the domain of game theory. Although it is relatively simple, it can also elucidate important problems related to cooperation and trust. Generally, players can predict their opponents’ actions when they are able to build a precise model of their behavior based on their game playing experience. However, it is difficult to make such predictions based on a limited number of games. The creation of a precise model requires the use of not only an appropriate learning algorithm and framework but also a good dataset. Active learning approaches have recently been introduced to machine learning communities. The approach can usually produce informative datasets with relatively little effort. Therefore, we have proposed an active modeling technique to predict the behavior of IPD players. The proposed method can model the opponent player’s behavior while taking advantage of interactive game environments. This experiment used twelve representative types of players as opponents, and an observer used an active modeling algorithm to model these opponents. This observer actively collected data and modeled the opponent’s behavior online. Most of our data showed that the observer was able to build, through direct actions, a more accurate model of an opponent’s behavior than when the data were collected through random actions.

  17. The prisoner's dilemma in the production of nuclear hydrogen

    International Nuclear Information System (INIS)

    Mendoza, A.; Francois, J. L.; Martin del Campo, C.

    2011-11-01

    The human beings take to daily decisions, so much at individual as social level, that affect their quality of life in more or minor measure and modify the conditions of their environment. Decisions like to use the car or the public transportation or government policies to adopt and energy development plan that includes technologies like the production of nuclear hydrogen, present a grade of global influence, not only affect or benefit at the person or government that it carries out them, but also present consequences in the individuals and resources of the environment. The hydrogen production using nuclear energy as supply of thermal energy is in itself decision matter; from investing or not in their investigation until fomenting laws and policies that impel their development and incorporation to the industrial panorama. The countries and institutes that opt to impel this technology have the possibility to obtain economic and environmental benefits in contrast with those that do not make it, these last only benefited of the first ones in the environmental aspect. High cost for the technological transfer and economic sanctions sustained in environmental arguments toward those -non cooperators- would be a possible consequence of the cooperators action in the search of a Nash balance. The Prisoner's dilemma exemplifies and increases the comprehension of this type of problems to search for better conditions in the system that improve the situation of all the participants, in this case: governments and institutions. (Author)

  18. Communal range defence in primates as a public goods dilemma.

    Science.gov (United States)

    Willems, Erik P; Arseneau, T Jean M; Schleuning, Xenia; van Schaik, Carel P

    2015-12-05

    Classic socio-ecological theory holds that the occurrence of aggressive range defence is primarily driven by ecological incentives, most notably by the economic defendability of an area or the resources it contains. While this ecological cost-benefit framework has great explanatory power in solitary or pair-living species, comparative work on group-living primates has always found economic defendability to be a necessary, but not sufficient condition to account for the distribution of effective range defence across the taxon. This mismatch between theory and observation has recently been ascribed to a collective action problem among group members in, what is more informatively viewed as, a public goods dilemma: mounting effective defence of a communal range against intrusions by outgroup conspecifics. We here further develop this framework, and report on analyses at three levels of biological organization: across species, across populations within a single lineage and across groups and individuals within a single population. We find that communal range defence in primates very rarely involves collective action sensu stricto and that it is best interpreted as the outcome of opportunistic and strategic individual-level decisions. Whether the public good of a defended communal range is produced by solitary, joint or collective action is thus the outcome of the interplay between the unique characteristics of each individual, local and current socio-ecological conditions, and fundamental life-history traits of the species. © 2015 The Author(s).

  19. THE WORK-STUDY DILEMMA OF CZECH UNDERGADUATES

    Directory of Open Access Journals (Sweden)

    FISCHER, Jakub

    2014-12-01

    Full Text Available The aim of this paper is to analyse the work-study dilemma of Czech students. We examine the impact of the work and study workload on the student’s expectations for their future labour market chances. For the future formal evaluation of Czech students’ workload, it is necessary to take into account if the students’ jobs are closely connected to their field of study, which make up the important part of their education. We used a unique dataset based on the survey EUROSTUDENT V to test this challenging question. We have found that Czech full-time students almost one full-time employment studying and working in one workweek. It was proven, that students who study very hard as well as students with in-branch experience are optimistic about their future labour prospects. Business-minded students especially prefer working hours to studying at school or at home. We did not discover the importance of family background to their workload with the exception of the labour-market perspectives. Furthermore we found considerable differences between men and women’s work experience during their studies. Finally, according to the solution of the WSDM model, we proved that while working hours are substitutes for hours spent at school, the role of self-study is irreplaceable.

  20. Splenic marginal zone lymphoma.

    Science.gov (United States)

    Piris, Miguel A; Onaindía, Arantza; Mollejo, Manuela

    Splenic marginal zone lymphoma (SMZL) is an indolent small B-cell lymphoma involving the spleen and bone marrow characterized by a micronodular tumoral infiltration that replaces the preexisting lymphoid follicles and shows marginal zone differentiation as a distinctive finding. SMZL cases are characterized by prominent splenomegaly and bone marrow and peripheral blood infiltration. Cells in peripheral blood show a villous cytology. Bone marrow and peripheral blood characteristic features usually allow a diagnosis of SMZL to be performed. Mutational spectrum of SMZL identifies specific findings, such as 7q loss and NOTCH2 and KLF2 mutations, both genes related with marginal zone differentiation. There is a striking clinical variability in SMZL cases, dependent of the tumoral load and performance status. Specific molecular markers such as 7q loss, p53 loss/mutation, NOTCH2 and KLF2 mutations have been found to be associated with the clinical variability. Distinction from Monoclonal B-cell lymphocytosis with marginal zone phenotype is still an open issue that requires identification of precise and specific thresholds with clinical meaning. Copyright © 2016 Elsevier Ltd. All rights reserved.

  1. Nuclear weapons free zones

    International Nuclear Information System (INIS)

    Stahl, K.

    1990-01-01

    The article analyses the concept and problems of the two nuclear weapons free zones in Latin America and in the South Pacific established by the Treaty of Tlatelolco and the Treaty of Rarotonga. So far the nuclear weapons states except China have refused to sign the additional protocols of the Treaties or have signed them only with considerable provisos. Therefore they don't fully recognize the nuclear weapons free status of those zones, or they don't recognize it at all. Both Treaties contain no provisions to regulate the transit of nuclear weapons through the zones. This allows de facto the stationing of nuclear weapons in the military bases of the US which are located within the nuclear weapons free zone of Latin America. The Treaty of Tlatelolco contains also the right of the states, party to the Treaty, to explode nuclear devices for peaceful purposes. Since peaceful and military nuclear explosions cannot be distinguished technically, this right could also undermine the nuclear weapons free status of the region. Important nuclear threshold countries like Argentina and Brazil have furthermore refrained from putting the Treaty into force. (orig.) [de

  2. Navigating ECA-Zones

    DEFF Research Database (Denmark)

    Hansen, Carsten Ørts; Grønsedt, Peter; Hendriksen, Christian

    This report examines the effect that ECA-zone regulation has on the optimal vessel fuel strategies for compliance. The findings of this report are trifold, and this report is coupled with a calculation tool which is released to assist ship-owners in the ECA decision making. The first key insight...... much time their operated vessels navigate the ECA in the future....

  3. Buffer Zone Sign Template

    Science.gov (United States)

    The certified pesticide applicator is required to post a comparable sign, designating a buffer zone around the soil fumigant application block in order to control exposure risk. It must include the don't walk symbol, product name, and applicator contact.

  4. Buffer Zone, Nicosia

    OpenAIRE

    Sorensen, Marie Louise

    2010-01-01

    Images of the United Nations Buffer Zone or Green Line which has partitioned Cyprus since 1974 The research leading to these results has received funding from the European Community's Seventh Framework Programme [FP7/2007-2013] under grant agreement n° 217411.

  5. Arid Zone Hydrology

    Science.gov (United States)

    Arid zone hydrology encompasses a wide range of topics and hydro-meteorological and ecological characteristics. Although arid and semi-arid watersheds perform the same functions as those in humid environments, their hydrology and sediment transport characteristics cannot be readily predicted by inf...

  6. Dilemma between health and environmental motives when purchasing animal food products: sociodemographic and nutritional characteristics of consumers.

    Science.gov (United States)

    Péneau, Sandrine; Fassier, Philippine; Allès, Benjamin; Kesse-Guyot, Emmanuelle; Hercberg, Serge; Méjean, Caroline

    2017-11-10

    Dietary guidelines in France give quantitative recommendations for intake of meat, fish and dairy products whereas consumers are increasingly concerned by the environmental impacts associated with the production of these foods. This potentially leads to consumer dilemmas when purchasing food products. The present study aimed at investigating the sociodemographic profiles of individuals reporting health and environmental dilemmas when purchasing meat, fish and dairy products, and comparing diet quality of individuals with and without dilemma. A total of 22,936 adult participants in the NutriNet-Santé cohort were included in this cross-sectional analysis. Participants completed a questionnaire assessing motives when purchasing meat, fish and dairy products, including health and environmental determinants. Environmental vs. health dilemmas were assessed using implicit and explicit methods. Sociodemographic data as well as dietary intake using repeated 24 h-records were collected. The association between sociodemographic characteristics and presence of dilemma was assessed using logistic regression models and between dilemma and intake of these products, adherence to food group guidelines, or overall dietary quality, using covariance analysis. Among participants, 13% were torn between buying meat for health reasons and to avoid buying it for environmental reasons, 12% in the case of fish and 5% in the case of dairy products. Older participants, women and low income individuals were more likely to report dilemmas. Participants reporting dilemmas for meat and dairy products consumed less of these foods (P < 0.05 and P < 0.0001, respectively) and had a better dietary quality overall (both P < 0.0001). In addition, participants with meat dilemma showed a better adherence to meat/fish/eggs guidelines (P < 0.001). Individuals reporting dilemmas concerning animal products had specific sociodemographic characteristics and showed higher diet quality overall compared

  7. The Changes of Ethical Dilemmas in Palliative Care. A Lesson Learned from Comparison Between 1998 and 2013 in Taiwan.

    Science.gov (United States)

    Chih, An-Hsuan; Su, Peijen; Hu, Wen-Yu; Yao, Chien-An; Cheng, Shao-Yi; Lin, Yen-Chun; Chiu, Tai-Yuan

    2016-01-01

    The current ethical dilemmas met by healthcare professionals were never compared with those 15 years ago when the palliative care system was newly developing in Taiwan. The aim of the study was to investigate the ethical dilemmas met by palliative care physicians and nurses in 2013 and compare the results with the survey in 1998. This cross-sectional study surveyed 213 physicians and nurses recruited from 9 representative palliative care units across Taiwan in 2013. The compared survey in 1998 studied 102 physicians and nurses from the same palliative care units. All participants took a questionnaire to survey the "frequency" and "difficulty" of 20 frequently encountered ethical dilemmas, which were grouped into 4 domains by factor analysis. The "ethical dilemma" scores were calculated and then compared across 15 years by Student's t tests. A general linear model analysis was used to identify significant factors relating to a high average "ethical dilemma" score in each domain. All of the highest-ranking ethical dilemmas in 2013 were related to insufficient resources. Physicians with less clinical experience had a higher average "ethical dilemma" score in clinical management. Physicians with dissatisfaction in providing palliative care were associated a higher average "ethical dilemma" score in communication. Nurses reported higher "ethical dilemma" scores in all items of resource allocation in 2013. Further analysis confirmed that, in 2013, nurses had a higher average "ethical dilemma" score in resource allocation after adjustment for other relating factors. Palliative care nursing staff in Taiwan are more troubled by ethical dilemmas related to insufficient resources than they were 15 years ago. Training of decision making in nurses under the framework of ethical principles and community palliative care programs may improve the problems. To promote the dignity of terminal cancer patients, long-term fundraising plans are recommended for countries in which the

  8. Bioethics education in clinical settings: theory and practice of the dilemma method of moral case deliberation.

    Science.gov (United States)

    Stolper, Margreet; Molewijk, Bert; Widdershoven, Guy

    2016-07-22

    Moral Case Deliberation is a specific form of bioethics education fostering professionals' moral competence in order to deal with their moral questions. So far, few studies focus in detail on Moral Case Deliberation methodologies and their didactic principles. The dilemma method is a structured and frequently used method in Moral Case Deliberation that stimulates methodological reflection and reasoning through a systematic dialogue on an ethical issue experienced in practice. In this paper we present a case-study of a Moral Case Deliberation with the dilemma method in a health care institution for people with an intellectual disability, describing the theoretical background and the practical application of the dilemma method. The dilemma method focuses on moral experiences of participants concerning a concrete dilemma in practice. By an in-depth description of each of the steps of the deliberation process, we elucidate the educational value and didactics of this specific method. The didactics and methodical steps of the dilemma method both supported and structured the dialogical reflection process of the participants. The process shows that the participants learned to recognize the moral dimension of the issue at stake and were able to distinguish various perspectives and reasons in a systematic manner. The facilitator played an important role in the learning process of the participants, by assisting them in focusing on and exploring moral aspects of the case. The reflection and learning process, experienced by the participants, shows competency-based characteristics. The role of the facilitator is that of a Socratic teacher with specific knowledge and skills, fostering reflection, inquiry and dialogue. The specific didactics of the dilemma method is well suited for teaching bioethics in clinical settings. The dilemma method follows an inductive learning approach through a dialogical moral inquiry in which participants develop not only knowledge but also skills

  9. Will I regret it? Anticipated negative emotions modulate choices in moral dilemmas

    Directory of Open Access Journals (Sweden)

    Carolina Pletti

    2016-12-01

    Full Text Available We tested if post-decisional emotions of regret, guilt, shame, anger, and disgust can account for individuals’ choices in moral dilemmas depicting the choice of letting some people die (non-utilitarian option or sacrificing one person to save them (utilitarian option. We collected participants’ choices and post-decisional emotional ratings for each option using Footbridge-type dilemmas, in which the sacrifice of one person is the means to save more people, and Trolley-type dilemmas, in which the sacrifice is only a side effect. Moreover, we computed the EEG Readiness Potential to test if the neural activity related to the last phase of decision-making was related to the emotional conflict. Participants reported generally stronger emotions for the utilitarian as compared to the non-utilitarian options, with the exception of anger and regret, which in Trolley-type dilemmas were stronger for the non-utilitarian option. Moreover, participants tended to choose the option that minimized the intensity of negative emotions, irrespective of dilemma type. No significant relationship between emotions and the amplitude of the Readiness Potential emerged. It is possible that anticipated post-decisional emotions play a role in earlier stages of decision-making.

  10. [When to consult the institutional bioethics committee? The deliberative method for resolving possible dilemmas].

    Science.gov (United States)

    Rabadán, Alejandra T; Tripodoro, Vilma A

    2017-01-01

    In healthcare, an ethical concern that arises during the decision making process is considered to be a bioethical dilemma. It is often the case that in the absence of proper deliberation, the problem is transferred to a bioethics committee, not even representing precisely a dilemma. Bioethics emerged as a discipline in the mid-20th century. It is defined as a support to decision-making in ethical dilemmas centered on two aspects: ethics of clinical investigation, focused on protecting the rights of research subjects, and bioethics in medical practice, of an advisory nature. To recognize the difference among difficult or complex clinical circumstances and ethical dilemmas could allow knowing when it is necessary to request for advice of a committee. It is not so much a question of deciding what is right or wrong, but which is the most advisable solution to a problem. We review the history of Bioethics Committees in Argentina that are facing today the challenge of promoting social responsibility and opening deliberations to community and health professionals. In the 20th century two historical moments are recognized: a pioneering and slow first period, and a second one of legal regulatory framework. Considering deliberation as a method of ethics, this article proposes a case analysis procedure and the deliberative method to elucidate dilemmas, with or without the help of a Committee.

  11. Abolishing the Security Dilemma: Why we need to integrate the militaries

    Directory of Open Access Journals (Sweden)

    Anna Cornelia Beyer

    2018-01-01

    Full Text Available This article argues that the Security Dilemma can in fact be abolished by integrating the militaries into one common global organisation, possibly under one common command. The existence and workings of North Atlantic Treaty Organization (NATO are an approximate example of this ideal in a geographically limited space. For illustrating this argument, this article discusses the logic of the Prisoners Dilemma, as the intellectual model underlying the Security Dilemma, and proposes an alternative version of the Prisoners Dilemma. It is then argued that the Security Dilemma only persists in a politically and economically ever farther integrated world because the international militaries are not integrated and hence partial anarchy persists at least in the military realm. The solution to remaining international conflicts, such as arguably one between NATO and Russia recently, would be to expand NATO to include “threatening” states’ militaries until all militaries are joined in a global organisation, a truly global NATO. Finally, revised non-violent functions for NATO, as well as a global welfare state and an early warning system for civil wars, are proposed and discussed.

  12. When to consult the institutional bioethics committee? The deliberative method for resolving possible dilemmas

    Directory of Open Access Journals (Sweden)

    Alejandra T Rabadán

    2017-12-01

    Full Text Available In healthcare, an ethical concern that arises during the decision making process is considered to be a bioethical dilemma. It is often the case that in the absence of proper deliberation, the problem is transferred to a bioethics committee, not even representing precisely a dilemma. Bioethics emerged as a discipline in the mid-20th century. It is defined as a support to decision-making in ethical dilemmas centered on two aspects: ethics of clinical investigation, focused on protecting the rights of research subjects, and bioethics in medical practice, of an advisory nature. To recognize the difference among difficult or complex clinical circumstances and ethical dilemmas could allow knowing when it is necessary to request for advice of a committee. It is not so much a question of deciding what is right or wrong, but which is the most advisable solution to a problem. We review the history of Bioethics Committees in Argentina that are facing today the challenge of promoting social responsibility and opening deliberations to community and health professionals. In the 20th century two historical moments are recognized: a pioneering and slow first period, and a second one of legal regulatory framework. Considering deliberation as a method of ethics, this article proposes a case analysis procedure and the deliberative method to elucidate dilemmas, with or without the help of a Committee.

  13. Consequences, norms, and generalized inaction in moral dilemmas: The CNI model of moral decision-making.

    Science.gov (United States)

    Gawronski, Bertram; Armstrong, Joel; Conway, Paul; Friesdorf, Rebecca; Hütter, Mandy

    2017-09-01

    Research on moral dilemma judgments has been fundamentally shaped by the distinction between utilitarianism and deontology. According to the principle of utilitarianism, the moral status of behavioral options depends on their consequences; the principle of deontology states that the moral status of behavioral options depends on their consistency with moral norms. To identify the processes underlying utilitarian and deontological judgments, researchers have investigated responses to moral dilemmas that pit one principle against the other (e.g., trolley problem). However, the conceptual meaning of responses in this paradigm is ambiguous, because the central aspects of utilitarianism and deontology-consequences and norms-are not manipulated. We illustrate how this shortcoming undermines theoretical interpretations of empirical findings and describe an alternative approach that resolves the ambiguities of the traditional paradigm. Expanding on this approach, we present a multinomial model that allows researchers to quantify sensitivity to consequences (C), sensitivity to moral norms (N), and general preference for inaction versus action irrespective of consequences and norms (I) in responses to moral dilemmas. We present 8 studies that used this model to investigate the effects of gender, cognitive load, question framing, and psychopathy on moral dilemma judgments. The findings obtained with the proposed CNI model offer more nuanced insights into the determinants of moral dilemma judgments, calling for a reassessment of dominant theoretical assumptions. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  14. REASONS AND CONSEQUENCES OF APPLIED LEADERSHIP STYLES IN ETHICAL DILEMMAS WHEN NURSE MANAGERS MAKE DECISIONS.

    Science.gov (United States)

    Zydziunaite, V; Suominen, T

    2014-09-21

    Abstract Background: Understanding the reasons and consequences of leadership styles in ethical dilemmas is fundamental to exploring nurse managers' abilities to influence outcomes for patients and nursing personnel. Purpose: To explain the associations between different leadership styles, reasons for their application and its consequences when nurse managers make decisions in ethical dilemmas. Methods: The data were collected between 15 October 2011 and 30 April 2012 by statistically validated questionnaire. The respondents (n=278) were nurse managers. The data were analyzed using SPSS 20.0, calculating Spearman's correlations, the Stepwise Regression and ANOVA. Results: The reasons for applying different leadership styles in ethical dilemmas include personal characteristics, years in work position, institutional factors, and the professional authority of nurse managers. The applied leadership styles in ethical dilemmas are associated with the consequences regarding the satisfaction of patients', relatives' and nurse managers' needs. Conclusions: Nurse managers exhibited leadership styles oriented to maintenance, focusing more on the "doing the job" than on managing the decision-making in ethical dilemmas.

  15. Leadership styles of nurse managers in ethical dilemmas: Reasons and consequences.

    Science.gov (United States)

    Zydziunaite, Vilma; Suominen, Tarja

    2014-01-01

    Abstract Background: Understanding the reasons and consequences of leadership styles in ethical dilemmas is fundamental to exploring nurse managers' abilities to influence outcomes for patients and nursing personnel. To explain the associations between different leadership styles, reasons for their application and its consequences when nurse managers make decisions in ethical dilemmas. The data were collected between 15 October 2011 and 30 April 2012 by statistically validated questionnaire. The respondents (N = 278) were nurse managers. The data were analysed using SPSS 20.0, calculating Spearman's correlations, the Stepwise Regression and ANOVA. The reasons for applying different leadership styles in ethical dilemmas include personal characteristics, years in work position, institutional factors, and the professional authority of nurse managers. The applied leadership styles in ethical dilemmas are associated with the consequences regarding the satisfaction of patients,' relatives' and nurse managers' needs. Nurse managers exhibited leadership styles oriented to maintenance, focussing more on the 'doing the job' than on managing the decision-making in ethical dilemmas.

  16. Integration Dilemma within the Eurasian Space in the Context of the Ukrainian Crisis

    Directory of Open Access Journals (Sweden)

    Antonina A. Durdyeva

    2015-01-01

    Full Text Available The article analyses the reaction of top officials, politicians and representatives of the expert community of the Eurasian Economic Union member countries on the aggravation of "Ukrainian crisis" in the context of plans and directions for further Eurasian integration. Today, in the scientific community is becoming a popular" dilemma of integration " as a systematic pattern that determines the development of relations between the integration associations. The dilemma of integration is a political phenomenon, a regular and predictable. Ukrainian crisis, which has become a litmus test of conflict of representations of the CIS countries on the extent and depth of their involvement in the processes of regional integration , most clearly outlined the presence of such dilemma within the CIS. In the current situation for Belarus and Kazakhstan as two , along with Russia , the main designers of the Eurasian field, the dilemma of integration takes a fundamentally different meaning and becomes a so-called "Dilemma of integrations", or contradiction between the desire of these countries to secure the most favorable conditions in its relations with Moscow and reluctance to fully bear the burden of the costs and constraints arising in relations with the EU due to the commitments of the EAEC. Based on the material of the official position of the representatives of Republic of Kazakhstan and the Republic of Belarus the author of the article explores the implications of the Ukrainian crisis in relations of Three: Moscow, Astana and Minsk.

  17. Will I Regret It? Anticipated Negative Emotions Modulate Choices in Moral Dilemmas

    Science.gov (United States)

    Pletti, Carolina; Lotto, Lorella; Tasso, Alessandra; Sarlo, Michela

    2016-01-01

    We tested if post-decisional emotions of regret, guilt, shame, anger, and disgust can account for individuals’ choices in moral dilemmas depicting the choice of letting some people die (non-utilitarian option) or sacrificing one person to save them (utilitarian option). We collected participants’ choices and post-decisional emotional ratings for each option using Footbridge-type dilemmas, in which the sacrifice of one person is the means to save more people, and Trolley-type dilemmas, in which the sacrifice is only a side effect. Moreover, we computed the EEG Readiness Potential to test if the neural activity related to the last phase of decision-making was related to the emotional conflict. Participants reported generally stronger emotions for the utilitarian as compared to the non-utilitarian options, with the exception of anger and regret, which in Trolley-type dilemmas were stronger for the non-utilitarian option. Moreover, participants tended to choose the option that minimized the intensity of negative emotions, irrespective of dilemma type. No significant relationship between emotions and the amplitude of the Readiness Potential emerged. It is possible that anticipated post-decisional emotions play a role in earlier stages of decision-making. PMID:27999559

  18. Evaluation of Ohio work zone speed zones process.

    Science.gov (United States)

    2014-06-01

    This report describes the methodology and results of analyses performed to determine the effectiveness of Ohio Department of Transportation processes for establishing work zone speed zones. Researchers observed motorists speed choice upstream of a...

  19. Empowerment Zones and Enterprise Districts - MDC_EnterpriseZone

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Polygon feature class of Miami Dade County Enterprise Zones. Enterprise Zones are special areas in the county where certain incentives from the State are available...

  20. Motivation Dilemma: A Case of Uganda | Mukokoma | Mtafiti Mwafrika

    African Journals Online (AJOL)

    This implies the need for a motivation model that considers monetary reward as motivators. Finally, a motivation framework based on available literature and survey results has been developed. The model relates the organization hierarchy to the motivation zones. The three major organization levels; top, middle, and lower ...