The evolutionary history of the first three enzymes in pyrimidine biosynthesis.Jeffrey N.Davidson,Kuey C. Chen,Robert S. Jamison,Lisa A. Musmanno &Christine B. Kern -1993 -Bioessays 15 (3):157-164.detailsSome metabolic pathways are nearly ubiquitous among organisms: the genes encoding the enzymes for such pathways must therefore be ancient and essential. De novo pyrimidine biosynthesis is an example of one such metabolic pathway. In animals a single protein called CADAbbreviations: CAD, trifunctional protein catalyzing the first three steps of de novo pyrimidine biosynthesis in higher eukaryotes; CPS, carbamyl phosphate synthetase domain; CPSase, carbamyl phosphate synthetase activity; ATC, aspartate transcarbamylase domain; ATCase, aspartate transcarbamylase activity; DHO, dihydroorotase domain; DHOase, dihydroorotase activity; (...) GLN, glutaminase subdomain or subunit of carbamyl phosphate synthetase, GL Nase, glutaminase activity; SYN, synthetase subdomain or subunit of carbamyl phosphate synthetase; SYNase, synthetase activity. carries the first three steps of this pathway. The same three enzymes in prokaryotes are associated with separate proteins. The CAD gene appears to have evolved through a process of gene duplication and DNA rearrangement, leading to an in‐frame gene fusion encoding a chimeric protein. A driving force for the creation of eukaryotic genes encoding multienzymatic proteins such as CAD may be the advantage of coordinate expression of enzymes catalyzing steps in a biosynthetic pathway. The analogous structure in bacteria is the operon. Differences in the translational mechanisms of eukaryotes and prokaryotes may have dictated the different strategies used by organisms to evolve coordinately regulated genes. (shrink)
Narrative Magic and the Construction of Selfhood in Antidepressant Advertising.Jeffrey N. Stepnisky -2007 -Bulletin of Science, Technology and Society 27 (1):24-36.detailsThis article examines the way in which selfhood is constructed in direct-to-consumer advertisements for antidepressant medications. The sample consists of advertisements that appeared in nine popular magazines between 1997 and 2005, television commercials that ran between 2003 and 2005, and online promotional Web sites. The analysis is divided into three sections. First, it is argued that the ads rely on metaphors of communication, information exchange, and plenitude to construct a relationship between biology and selfhood. Second, in offering the choice for (...) antidepressant treatment, the ads grant individuals a new capacity for the exercise of personal agency. Third, the author describes antidepressants as pills that perform a narrative “magic.” In contrast to religious and psychoanalytic narratives that required individuals to incorporate disavowed elements of their selves into an ongoing life narrative, antidepressants are medications that allow individuals to put aside, or jump over, inexplicable and painful moments in their life. (shrink)
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China and the Town Square Test.Jeffrey N. Wasserstrom -2011 -ProtoSociology 28:173-185.detailsThis essay assesses the way that issues relating to freedom of speech and public and private forms of dissent have and have not changed in the People’s Republic of China in recent decades. It looks at the way China’s unusual trajectory suggests that Nathan Sharansky’s famous “town square test,” which is often used to divide countries along a single axis (with “free” nations on one side, “fear” nations on the other) is problematic. The need to take regional variations within China (...) into account is one theme that is stresses. (shrink)
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Influencing Managers to Change Unpopular Corporate Behavior through Boycotts and Divestitures.Iii Wallace N.Davidson,Dan L. Worrell &Abuzar El-Jelly -1995 -Business and Society 34 (2):171-196.detailsIn this research, the authors present a model that demonstrates that motivating managers to change unpopular or irresponsible corporate behavior may be required when the stakeholders desire such a change. Using agency theory, they then test part of the model and demonstrate why it may be necessary for an organized protest to impact on share prices before managers choose to change the behavior. Investors' reactions to announcements of product boycotts and stock divestitures made over the 23-year period 1969-1991 were examined. (...) Announcements about boycotts were associated with significant negative market reactions, whereas divestiture announcements resulted in no significant market responses. From a pure stock market perspective, boycotts appear to be a more effective tool in influencing managers to change a company's behavior. (shrink)
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Is There a Free Lunch in Inference?Jeffrey N. Rouder,Richard D. Morey,Josine Verhagen,Jordan M. Province &Eric-Jan Wagenmakers -2016 -Topics in Cognitive Science 8 (3):520-547.detailsThe field of psychology, including cognitive science, is vexed by a crisis of confidence. Although the causes and solutions are varied, we focus here on a common logical problem in inference. The default mode of inference is significance testing, which has a free lunch property where researchers need not make detailed assumptions about the alternative to test the null hypothesis. We present the argument that there is no free lunch; that is, valid testing requires that researchers test the null against (...) a well-specified alternative. We show how this requirement follows from the basic tenets of conventional and Bayesian probability. Moreover, we show in both the conventional and Bayesian framework that not specifying the alternative may lead to rejections of the null hypothesis with scant evidence. We review both frequentist and Bayesian approaches to specifying alternatives, and we show how such specifications improve inference. The field of cognitive science will benefit because consideration of reasonable alternatives will undoubtedly sharpen the intellectual underpinnings of research. (shrink)
Let's make a deal: Quality and availability of second-stage information as a catalyst for change.Jeffrey N. Howard,Charles G. Lambdin &Darcee L. Datteri -2007 -Thinking and Reasoning 13 (3):248 – 272.detailsThe Monty Hall Problem (MHP), a process of two-stage decision making, was presented in atypical form via a custom software game. Differing from the normal three-box MHP, the game added one additional box on-screen for each game—culminating on game 23 with 25 on-screen boxes to initially choose from. A total of 108 participants played 23 games (trials) in one of four conditions; (1) “Vanish” condition—all non-winning boxes totally removed from the screen; (2) “Empty” condition—all non-winning boxes remain on-screen, but with (...) an “empty” label on them; (3) “Steroids” condition—all non-winning boxes removed from the screen, with initially chosen box becoming 25% larger; (4) “Steroids2” condition—all non-winning boxes removed from the screen, box not currently chosen becomes 25% larger. Results indicate second-stage on-screen presence of boxes influences switching; with their absence having the opposite effect. Size manipulation appears to elicit demand characteristics resulting in indeterminate influence. (shrink)
Shareholder initiative: An informal social choice and game theoretic approach.Jeffrey N. Gordon -manuscriptdetailsCurrent arguments to increase shareholder power in the large public U.S. corporation need to take account of the well-established historical practice of extensive delegation by shareholders of business decision-making and agenda-control to management and the board, what might be characterized as an absolute delegation rule. This practice sharply limits the power of shareholders to put either business or governance proposals to the shareholders for dispositive resolution. The paper, originally published in 1991 but newly relevant, argues that the rule is based (...) on potential pathologies in shareholder voting rather than the inherent information asymmetry between shareholders and managers. Rational shareholders who know of this asymmetry (and know that others know) would simply vote against most shareholder proposals. But shareholder voting gives rise to potential cycling problems, as shifting shareholder majorities vie for preferred policies, and potential opportunism, as shareholders engage in side deals with management and other shareholders to extract rents in corporate decision-making. Since shareholding patterns are in part a response to control rights, deviations from the absolute delegation rule will predictably lead to greater block ownership, for defensive and offensive reasons. These concerns need to be addressed in arguments for the expansion of shareholder power. (shrink)
Debunking Interface Theory: Why Hoffman's Skepticism (Really) is Self-Defeating.Jeffrey N. Bagwell -2023 -Synthese 201 (25):1-23.detailsCognitive scientist Donald Hoffman and others have recently advanced an evolutionary debunking argument aimed at our perceptual beliefs in ordinary objects, based on the Interface Theory of Perception. In contrast with most recent criticisms of Interface Theory, which have targeted its characterizations of perception and veridicality, I raise a broad dialectical problem for Hoffman’s debunking argument. I show that the argument is self-defeating, and that responding to this problem by appealing to Universal Darwinism leads to a fatal dilemma for the (...) view. (shrink)
Legacies of Radicalism: China's Cultural Revolution and the Democracy Movement of 1989.Craig Calhoun &Jeffrey N. Wasserstrom -1999 -Thesis Eleven 57 (1):33-52.detailsStudents in 1989 were at pains to distinguish their actions from those taken by students in the Cultural Revolution. Yet there were important similarities. In the present paper, we identify influence on the Democracy Movement from the Cultural Revolution through (1) the expansion and/or widespread familiarization of repertories of collective action available to Chinese activists; (2) precedents for collective action that may have lowered the barriers to action for some while raising them for others; (3) the participation of people at (...) different stages of their lives in both movements; (4) the transformation of the significance of the ideas of democracy and political authority wrought by the Cultural Revolution for many Chinese; (5) the impact of the Cultural Revolution on Chinese intellectuals; (6) the material consequences of the Cultural Revolution which contributed to China's position in the post-Mao era and the specific issues reform and protest sought to confront; (7) the discourse of corruption which provided the 1989 movement with its strongest links between students and ordinary citizens, and which was accentuated in the Cultural Revolution; (8) the affirmation of the value of ordinary life by which students in the 1980s, encouraged by the `literature of the wounded', rebelled against the Puritanism and denigration of `unauthorized' personal relationships that had been characteristic of the Cultural Revolution; (9) the role of the Cultural Revolution as a cautionary tale, shaping the movement itself, inhibiting some older intellectuals from participating, and determining much of how the government viewed and responded to the Democracy Movement; and (10) the embeddedness in different ways of both Cultural Revolution and 1989 protests in an international context. (shrink)
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Science today: problem or crisis?Ralph Levinson &Jeffrey N. Thomas (eds.) -1997 - New York: Routledge.detailsWhat is science? What is the purpose of science education? Should we be training scientists, or looking towards a greater public understanding of science? In this exciting text, some of the key figures in the fields of science and science education address this debate. Their contributions form an original dialogue on science education and the general public awareness of science, tackling both formal and informal aspects of science learning. the editors argue that a greater knowledge of science can lead to (...) a better future, but that this can only happen through a mutual understanding between scientists, schools and the public. (shrink)
Recognition Decisions From Visual Working Memory Are Mediated by Continuous Latent Strengths.J. Ricker Timothy,E. Thiele Jonathan,R. Swagman April &N. RouderJeffrey -2017 -Cognitive Science 41 (6):1510-1532.detailsMaking recognition decisions often requires us to reference the contents of working memory, the information available for ongoing cognitive processing. As such, understanding how recognition decisions are made when based on the contents of working memory is of critical importance. In this work we examine whether recognition decisions based on the contents of visual working memory follow a continuous decision process of graded information about the correct choice or a discrete decision process reflecting only knowing and guessing. We find a (...) clear pattern in favor of a continuous latent strength model of visual working memory–based decision making, supporting the notion that visual recognition decision processes are impacted by the degree of matching between the contents of working memory and the choices given. Relation to relevant findings and the implications for human information processing more generally are discussed. (shrink)
Fluorescent proteins for FRET microscopy: Monitoring protein interactions in living cells.Richard N. Day &Michael W.Davidson -2012 -Bioessays 34 (5):341-350.detailsThe discovery and engineering of novel fluorescent proteins (FPs) from diverse organisms is yielding fluorophores with exceptional characteristics for live‐cell imaging. In particular, the development of FPs for fluorescence (or Förster) resonance energy transfer (FRET) microscopy is providing important tools for monitoring dynamic protein interactions inside living cells. The increased interest in FRET microscopy has driven the development of many different methods to measure FRET. However, the interpretation of FRET measurements is complicated by several factors including the high fluorescence background, (...) the potential for photoconversion artifacts and the relatively low dynamic range afforded by this technique. Here, we describe the advantages and disadvantages of four methods commonly used in FRET microscopy. We then discuss the selection of FPs for the different FRET methods, identifying the most useful FP candidates for FRET microscopy. The recent success in expanding the FP color palette offers the opportunity to explore new FRET pairs. (shrink)
An Ethics Consult Documentation Simplification Project: Summation of Participatory Processes, User Perceptions, and Subsequent Use Patterns.Meaghann S. Weaver,Anita J. Tarzian,Hannah N. Hester,Karinne R.Davidson,Rodney P. Dismukes &Mary Beth Foglia -2025 -HEC Forum 37 (2):249-265.detailsHealthcare ethics consultants in the Veterans Health Administration (VHA) document consults in an enterprise-wide web-based database entitled IEWeb, serving as a system of record for healthcare ethics documentation at 1300 VA facilities. The need arose to evolve the database from an ethics process training resource into a more streamlined documentation repository that captures essential consult elements. A VHA National Center for Ethics in Health Care (NCEHC) Improvement Team convened for three tasks: (1) Specify and prioritize IEWeb changes (occurred via six (...) focus groups composed of “new user” and “super user” cohorts with analysis of existing documentation patterns); (2) Pilot the changes regionally (via regional communication, training, and reviews of pre-post use patterns); and (3) Measure the impact of national change implementation on user perspectives (via pre-and post-change implementation polls). Focus groups identified six implementable priority areas for ethics consult documentation improvement, including the development of a usable consult summary note for ready conversion from IEWeb fields into the electronic health record. Post-IEWeb updates showed an increased number of consults documented, a reduction in “time to consult documentation closure” by a mean of 4.5 days, and a clinically-meaningful improvement in the quality of documentation (78% of ethics questions scored “above-bar” on the validation tool pre- vs. 89% scored “above-bar” post-IEWeb changes, n = 140). According to national survey findings, the number of consultants documenting “all” consults in IEWeb increased, satisfaction increased, and perception of documentation difficulty decreased. IEWeb simplification enabled ethics consultants to re-focus their documentation completion efforts by decreasing perception of documentation burden while improving documentation frequency and quality in a clinically-meaningful way. (shrink)
Crisis and the Renewal of Creation: World and Church in the Age of Ecology.Jeffrey Golliher,William Bryant Logan &N. Cathedral of St John the Divine York -1996 - Burns & Oates.detailsOver the past 25 years, no religious institution in America has done more to explore the link between the environment and spirituality than the Cathedral of St. John the Divine. Now, for the first time, a selection of the finest of the Cathedral's ecological sermons appears in a single volume.
Measurement practices exacerbate the generalizability crisis: Novel digital measures can help.Brittany I.Davidson,David A. Ellis,Clemens Stachl,Paul J. Taylor &Adam N. Joinson -2022 -Behavioral and Brain Sciences 45.detailsPsychology's tendency to focus on confirmatory analyses before ensuring constructs are clearly defined and accurately measured is exacerbating the generalizability crisis. Our growing use of digital behaviors as predictors has revealed the fragility of subjective measures and the latent constructs they scaffold. However, new technologies can provide opportunities to improve conceptualizations, theories, and measurement practices.
Don't try this at home: Pliny's Salpe, Salpe'sPaignia and magic.James N.Davidson -1995 -Classical Quarterly 45 (02):590-.detailsThere are two women called Salpe who are said to have written books in antiquity: one is described by Athenaeus as the name or pseudonym of a writer of ‘Paignia’ the other is cited by Pliny the Elder who calls her at one point Salpe obstetrix. Salpe is a rare name in antiquity—I know of no other examples—and few ancient books were ascribed to women. That two of these rare female writers should be called by the same name is something (...) of a coincidence. That the name they shared was the very rare Salpe is a priori distinctly unlikely. It is much more plausible that they were one and the same. (shrink)
Effects of alcohol, rumination, and gender on the time course of negative affect.Jeffrey S. Simons,Noah N. Emery,Raluca M. Simons,Thomas A. Wills &Michael K. Webb -2017 -Cognition and Emotion 31 (7):1405-1418.detailsThis study modelled associations between gender, ruminative cognitive style, alcohol use, and the time course of negative affect over the course of 43,111 random assessments in the natural environment. Participants completed 49 days of experience sampling over 1.3 years. The data indicated that rumination at baseline was positively associated with alcohol dependence symptoms at baseline as well as higher negative affect over the course of the study. Consistent with negative reinforcement models, drinking served to decrease the persistence of negative affect (...) from moment to moment. However, this ameliorative effect of drinking was evident only among women, suggesting an increased risk for negative reinforcement driven drinking behaviour. In addition, rumination appeared to counteract the desired effects of alcohol on mood among women. This suggests that women who ruminate more may be motivated to consume larger amounts of alcohol to achieve the desired effects. Overall, the results indicate that ruminative cognitive style and the persistence of negative affect from moment to moment may reflect an individual vulnerability for the development of alcohol use disorder especially among women. (shrink)
Introduction: A Caveat on Caveats.Jeffrey M. Perl,Christian B. N. Gade,Rane Willerslev,Lotte Meinert,Beverly Haviland,Nancy Scheper-Hughes,Daniel Grausam,Daniel McKay &Michiko Urita -2015 -Common Knowledge 21 (3):399-405.detailsIn this introduction to part 4 of the Common Knowledge symposium “Peace by Other Means,” the journal's editor assesses the argument made by Peace, the spokesperson of Erasmus in his Querela Pacis, that the desire to impute and avenge wrongs against oneself is insatiable and at the root of both individual and social enmities. He notes that, in a symposium about how to resolve and prevent enmity, most contributions have to date expressed caveats about how justice and truth must take (...) precedence over peace, how recovery from ill treatment may be impossible, how quietism is not a moral option, and how realism demands a national policy and a personal strategy of, at best, contingent forgiveness. He concedes that the attitudes of those opposed to quietism are healthy but suggests that there may be goods worthier than health of human devotion. This essay concludes that the main differences between what it terms “judgmental” and “irenic” regimes are disagreements over anthropology and metaphysics. The presumptions that truths are objectively knowable and that human beings are moral and rational agents characterize judgmental regimes; irenic regimes are characterized by disillusionment with those assumptions. (shrink)
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Stock market reactions to announced corporate illegalities.Wallace N.Davidson,Dan L. Worrell &Chun I. Lee -1994 -Journal of Business Ethics 13 (12):979-987.detailsExtending the work ofDavidson and Worrell, we further investigate the stock market''s reaction to announced corporate illegalities. We examine a sample of 535 announcements of corporate crime and obtain an overall insignificant stock market reaction. However, when the sample is divided by type of crime, we find that the stock market reacts significantly to announcements of bribery, tax evasion, and violations of government contracts. We also find a significantly negative reaction to announcements of corporate crime when the company (...) had been previously accused of other illegal activity. For companies accused of crime in the 1970s, 51% of them were accused again in the 1980s. (shrink)
Place as Relationship Partner: An Alternative Metaphor for Understanding the Quality of Visitor Experience in a Backcountry Setting.Jeffrey J. Brooks,George N. Wallace &Daniel R. Williams -2006 -Leisure Science: An Interdisciplinary Journal 28 (4):331-349.detailsThis article presents empirical evidence to address how some visitors build relationships with a wildland place over time. Insights are drawn from qualitative interviews of recreation visitors to the backcountry at Rocky Mountain National Park in Colorado. The article describes relationship to place as the active construction and accumulation of place meanings. The analysis is organized around three themes that describe how people develop relationships to place: time and experience accrued in place, social and physical interactions in and with the (...) setting, and an active reflective process of regulating sense of identity to affirm commitment to place. (shrink)
Regulatory Pressure and Environmental Management Infrastructure and Practices.Wallace N.Davidson &Dan L. Worrell -2001 -Business and Society 40 (3):315-342.detailsIn this article, we hypothesize that the level of environmentally oriented noncompliance regulatory fines and penalties levied on companies and on their industry counterparts will be associated with the development of an environmental infrastructure and practices within these companies. We find that the presence of these regulatory actions is associated with the likelihood of companies reporting environmental policies and activities and with the presence of a separate board of directors’ committee that monitors company environmental concerns. Our findings suggest that environmental (...) regulatory pressure may serve as a driver of environmental action but is not its only determinant. (shrink)
The effect of organizational culture and ethical orientation on accountants' ethical judgments.Patricia Casey Douglas,Ronald A.Davidson &Bill N. Schwartz -2001 -Journal of Business Ethics 34 (2):101 - 121.detailsThis paper examines the relationship between organizational ethical culture in two large international CPA firms, auditors'' personal values and the ethical orientation that those values dictate, and judgments in ethical dilemmas typical of those that accountants face. Using an experimental task consisting of multiple judgments designed to vary in "moral intensity" (Jones, 1991), and unique as well as tried-and-true approaches to variable measurements, this study examined the judgments of more than three hundred participants in our study. ANCOVA and path analysis (...) results indicate that: (1) Ethical judgments in situations of high moral intensity are affected by personal values and by environmental variables, such as the professional code of conduct (direct and indirect effects) and previous ethics instruction (direct effect only). (2) Corporate ethical culture, and a relatively strong firm rules-orientation, affect auditors'' idealism but not relativism, and therefore indirectly affect ethical judgments. Jones'' (1991) moral intensity argument is supported: differences in the characteristics of specific judgment tasks apparently result in different decision processes. (shrink)
Critical social theory approach to disclosure of genomic incidental findings.Jeffrey L. Bevan,Julia N. Senn-Reeves,Ben R. Inventor,Shawna M. Greiner,Karen M. Mayer,Mary T. Rivard &Rebekah J. Hamilton -2012 -Nursing Ethics 19 (6):819-828.detailsTechnology has expanded genomic research and the complexity of extracted gene-related information. Health-related genomic incidental findings pose new dilemmas for nurse researchers regarding the ethical application of disclosure to participants. Consequently, informed consent specific to incidental findings is recommended. Critical Social Theory is used as a guide in recognition of the changing meaning of informed consent and to serve as a framework to inform nursing of the ethical application of disclosure consent in genomic nursing research practices.
Empathy Is Associated With Dynamic Change in Prefrontal Brain Electrical Activity During Positive Emotion in Children.Sharee N. Light,James A. Coan,Corrina Frye &Richard J.Davidson -unknowndetailsEmpathy is the combined ability to interpret the emotional states of others and experience resultant, related emotions. The relation between prefrontal electroencephalographic asymmetry and emotion in children is well known. The association between positive emotion (assessed via parent report), empathy (measured via observation), and second-by-second brain electrical activity (recorded during a pleasurable task) was investigated using a sample of one hundred twenty-eight 6- to 10-year-old children. Contentment related to increasing left frontopolar activation (p< .05). Empathic concern and positive empathy (...) related to increasing right frontopolar activation (ps< .05). A second form of positive empathy related to increasing left dorsolateral activation (p< .05). This suggests that positive affect and (negative and positive) empathy both relate to changes in prefrontal activity during a pleasurable task. (shrink)
Why the World Needs Bioethics Communication.Travis N. Rieder,Lauren Arora Hutchinson &Jeffrey P. Kahn -2022 -Perspectives in Biology and Medicine 65 (4):629-636.detailsABSTRACT:This essay argues for the importance of formalizing public engagement efforts around bioethics as something we might call "bioethics communication," and it outlines the Johns Hopkins Berman Institute of Bioethics' plans for engaging in this effort. Because science is complex and difficult to explain to nonexperts, the field of science communication has arisen to meet this need. The field involves both a practice and a subject of empirical research. Like science, bioethics is also complex and difficult to explain, which is (...) why the world needs bioethics communication. The authors are engaged in a brand-new effort to establish the sort of public bioethics efforts that would constitute bioethics communication, through a program which they call the Dracopoulos-Bloomberg iDeas Lab. The authors invite colleagues to experiment and learn with them as they invest in the development of bioethics communicators and their products. (shrink)
(1 other version)The Generality of Theory and the Specificity of Social Behavior: Contrasting Experimental and Hermeneutic Social Science.Edwin E. Gantt,Jeffrey P. Lindstrom &Richard N. Williams -2016 -Journal for the Theory of Social Behaviour 46 (4).detailsSince its inception, experimental social psychology has arguably been of two minds about the nature and role of theory. Contemporary social psychology's experimental approach has been strongly informed by the “nomological-deductive” approach of Carl Hempel in tandem with the “hypothetico-deducive” approach of Karl Popper. Social psychology's commitment to this hybrid model of science has produced at least two serious obstacles to more fruitful theorizing about human experience: the problem of situational specificity, and the manifest impossibility of formulating meaningful general laws (...) of human social behavior. It is argued that a social psychology based on the search for this kind of lawfulness, under the auspices of either a strict or loose interpretation of the largely Hempelian model, is ultimately unworkable. An alternative approach to social psychology that is attentive both to the need for understanding individual situations and behaviors and to the need for generalized understanding of actual human behaviors is offered. This approach is grounded in the hermeneutic tradition. (shrink)
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