Selective citation in scientific literature on the human health effects of bisphenol A.M. P. Zeegers,L. M. Bouter,G. M. H. Swaen,B. Duyx &M. J. E. Urlings -2019 -Research Integrity and Peer Review 4 (1).detailsIntroductionBisphenol A is highly debated and studied in relation to a variety of health outcomes. This large variation in the literature makes BPA a topic that is prone to selective use of literature, in order to underpin one’s own findings and opinion. Over time, selective use of literature, by means of citations, can lead to a skewed knowledge development and a biased scientific consensus. In this study, we assess which factors drive citation and whether this results in the overrepresentation of (...) harmful health effects of BPA.MethodsA citation network analysis was performed to test various determinants of citation. A systematic search identified all relevant publications on the human health effect of BPA. Data were extracted on potential determinants of selective citation, such as study outcome, study design, sample size, journal impact factor, authority of the author, self-citation, and funding source. We applied random effect logistic regression to assess whether these determinants influence the likelihood of citation.ResultsOne hundred sixty-nine publications on BPA were identified, with 12,432 potential citation pathways of which 808 citations occurred. The network consisted of 63 cross-sectional studies, 34 cohort studies, 29 case-control studies, 35 narrative reviews, and 8 systematic reviews. Positive studies have a 1.5 times greater chance of being cited compared to negative studies. Additionally, the authority of the author and self-citation are consistently found to be positively associated with the likelihood of being cited. Overall, the network seems to be highly influenced by two highly cited publications, whereas 60 out of 169 publications received no citations.ConclusionIn the literature on BPA, citation is mostly driven by positive study outcome and author-related factors, such as high authority within the network. Interpreting the impact of these factors and the big influence of a few highly cited publications, it can be questioned to which extent the knowledge development in human literature on BPA is actually evidence-based. (shrink)
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A New Introduction to Modal Logic.M. J. Cresswell &G. E. Hughes -1996 - New York: Routledge. Edited by M. J. Cresswell.detailsThis long-awaited book replaces Hughes and Cresswell's two classic studies of modal logic: _An Introduction to Modal Logic_ and _A Companion to Modal Logic_. _A New Introduction to Modal Logic_ is an entirely new work, completely re-written by the authors. They have incorporated all the new developments that have taken place since 1968 in both modal propositional logic and modal predicate logic, without sacrificing tha clarity of exposition and approachability that were essential features of their earlier works. The book takes (...) readers from the most basic systems of modal propositional logic right up to systems of modal predicate with identity. It covers both technical developments such as completeness and incompleteness, and finite and infinite models, and their philosophical applications, especially in the area of modal predicate logic. (shrink)
Reflective professionalism: interpreting CanMEDS' "professionalism".M. A. Verkerk,M. J. de Bree &M. J. E. Mourits -2007 -Journal of Medical Ethics 33 (11):663-666.detailsResidency training in the Netherlands is to be restructured over the coming years. To this end a general competence profile for medical specialists has been introduced. This profile is nearly the same as the Canadian CanMEDS 2000 model, which describes seven general areas of medical specialist competence, one of which is professionalism. In order to establish a training programme for residents and their instructors based on this competence, it is necessary to develop a vision that does justice to everyday medical (...) practice. The two most prevailing views of professionalism—as personal, or as a behavioural characteristic—fall short of this. Only when professionalism is understood as reflective professionalism does it encompass the fundamental contextuality of medical treatment. This means that the focus of training and assessment must be shifted to accountability for treatment. (shrink)
Continuity and Change in Gender Frames: The Case of Transgender Reproduction.J. E. Sumerau,Shannon K. Carter &Nik M. Lampe -2019 -Gender and Society 33 (6):865-887.detailsIn this article, we examine the ways gendered frames shift to make room for societal changes while maintaining existing pillars of systemic gender inequality. Utilizing the case of U.S. media representations of transgender people who reproduce, we analyze how media outlets make room for increasing societal recognition of transgender people and maintain cisnormative and repronormative traditions and beliefs in the process. Specifically, we outline how these media outlets accomplish both outcomes in two ways. First, they reinforce cisgender-based repronormativity via conceptualizations (...) of transgender reproduction as new and occurring in contrast to normative, cisgender reproduction. Second, they create a transnormative reproductive subject, which establishes a new socially sanctioned script for what it means to be transgender and what types of transgender experience may be recognized or accepted in mainstream society. In conclusion, we draw out implications for understanding how social authorities may shift existing gender frames to make room for changes in society while at the same time maintaining normative beliefs. These normative beliefs continue to facilitate societal patterns of gender inequality within such new frames. (shrink)
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The Newton-Wigner and Wightman localization of the photon.J. E. M. Ingall -1996 -Foundations of Physics 26 (8):1003-1031.detailsA quantum theory of the photon is developed in a natural manner. Newton-Wigner and Wightman demonstrated that the photon could not be strictly localized according to natural criteria. These investigations involved the identification of an elementary system with a uirrep of the Poincare group. We identify a particle with the localized measurement of the states satisfying the uirrep. In the case of zero mass and unit spin, the photon is identified with those components of the state that can be localized. (...) A c-number four-vector potential and Lorentz condition are derived from the relativistic wave equation. The Wightman localization is demonstrated for the three independent space components of the vector potential, and the photon is identified with these components. A position operator and probability density follow immediately from the localization. A consequence of the subjective definition of a photon is that the transformations of the vector potential are unitary, and hence the unitary scalar product can be obtained for the four-vector potential. A Hilbert space is defined for the three space components of the vector potential. A position operator and probability density are derived from the scalar product, which compare directly with those obtained from the localization and the non-relativistic theory. As the longitudinal and scalar polarizations do not contribute to the measured transition probability, they are considered virtual. Lastly, a conserved four-vector current is derived from the scalar product. The possibility of observing a strict localization of the photon in the laboratory is suggested. (shrink)
Mobile phones as lekking devices among human males.J. E. Lycett &R. I. M. Dunbar -2000 -Human Nature 11 (1):93-104.detailsThis study investigated the use of mobile telephones by males and females in a public bar frequented by professional people. We found that, unlike women, men who possess mobile telephones more often publicly display them, and that these displays were related to the number of men in a social group, but not the number of women. This result was not due simply to a greater number of males who have telephones: we found an increase with male social group size in (...) the proportion of available telephones that were on display. Similarly, there was a positive relationship between the number of visible telephones and the ratio of males to females. Our results further show that the increased display of telephones in groups with more males is not due to the ostensive function of these devices (i.e., the making and receiving of calls), although single males tended to use their phones more. We interpret these results within the framework of male-male competition, with males in larger group sizes functioning in an increasingly competitive environment. This competitive environment is suggested to be akin to a lek mating system in which males aggregate and actively display their qualities to females who assess males on a number of dimensions. We suggest that mobile telephones might be used by males as an indicator of their status and wealth (sensu “cultural ornaments”). (shrink)
Theories of Scientific Method. The Renaissance through the Nineteenth Century. [REVIEW]E. M. J. -1960 -Review of Metaphysics 14 (1):169-170.detailsThirteen studies provide a good introduction to some of the leading theorists of the period in question. Despite multiple authorship this book is even in its style and penetration of subject-matter. While the historical authors are frequently allowed to speak for themselves, the present authors have not failed to generalize and evaluate in the interest of clarity. There are 58 pages of notes. --J. E. M.
Giving answers or raising questions?: the problematic role of institutional ethics committees.J. E. Fleetwood,R. M. Arnold &R. J. Baron -1989 -Journal of Medical Ethics 15 (3):137-142.detailsInstitutional ethics committees (IECs) are part of a growing phenomenon in the American health care system. Although a major force driving hospitals to establish IECs is the desire to resolve difficult clinical dilemmas in a quick and systematic way, in this paper we argue that such a goal is naive and, to some extent, misguided. We assess the growing trend of these committees, analyse the theoretical assumptions underlying their establishment, and evaluate their strengths and shortcomings. We show how the 'medical (...) consultation' model is often inappropriately applied to IECs and suggest that IECs must operate under a different framework. Finally, we argue that IECs should be valued for the process they facilitate, and not for the product that they are, often unreasonably, expected to deliver. (shrink)
Freud and Dewey on the Nature of Man. [REVIEW]E. M. J. -1960 -Review of Metaphysics 14 (1):172-173.detailsThe author is concerned to show that Freud and Dewey were in agreement with regard to their basic psychological positions, and that because of their personal experiences they were led "to emphasize the opposite element in a relatively fixed equation ['the dynamic interaction between the individual and his environment']" with Freud placing more weight upon internal organization of the individual and Dewey on external events. In establishing similarities the author seems to have overlooked the fact that one difference, if important (...) enough, can minimize similarities. The "inner," "outer" difference seems to be a case in point. Hence, Dewey is generally associated with a social psychology and Freud with an individual psychology. --J. E. M. (shrink)
From an Ivory Tower. [REVIEW]E. M. J. -1961 -Review of Metaphysics 14 (3):568-568.detailsAddressed to the non-mathematician, this mainly historical work attempts to bring out the basic philosophical issues in the face of which mathematics exhibits that it has "'no corner on the market' of truth." The author's discussion of theory of numbers is quite good; the chapter on the infinite, however, with its concern for the infinity of God, is perhaps less mathematical or strictly philosophical than one has a right to expect.--J. E. M.
Group Psycho-analysis. [REVIEW]E. M. J. -1959 -Review of Metaphysics 13 (2):360-361.detailsThe author describes analyst and patient roles in group psycho-analysis with a view towards increasing among his colleagues the application of techniques based largely on Karen Horney's theories.--J. E. M.