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ObjectiveOverweight and obesity [body mass index ≥ 25 kg/m2] are associated with poorer prognosis among women with breast cancer, and weight gain is common during treatment. Symptoms of depression and anxiety are also highly prevalent in women with breast cancer and may be exacerbated by post-diagnosis weight gain. Altered brain function may underlie psychological distress. Thus, this secondary analysis examined the relationship between BMI, psychological health, and resting state functional connectivity among women with breast cancer.MethodsThe sample included 34 post-menopausal women (...) newly diagnosed with Stage 0-IIa breast cancer who were enrolled in a 6-month randomized controlled trial of aerobic exercise vs. usual care. At baseline prior to randomization, whole-brain analyses were conducted to evaluate the relationship between BMI and seed-to-voxel rsFC of the hippocampus and amygdala. Connectivity values from significant clusters were then extracted and examined as predictors of self-reported depression and anxiety.ResultsMean BMI was in the obese range. For both seeds examined, higher BMI was associated with lower rsFC with regions of prefrontal cortex, including ventrolateral PFC, dorsolateral PFC, and superior frontal gyrus. Hippocampal connectivity with the vlPFC was negatively correlated with self-reported anxiety.ConclusionHigher BMI was associated with lower hippocampal and amygdala connectivity to regions of PFC implicated in cognitive control and emotion regulation. BMI-related differences in hippocampal and amygdala connectivity following a recent breast cancer diagnosis may relate to future worsening of psychological functioning during treatment and remission. Additional longitudinal research exploring this hypothesis is warranted. (shrink)

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It is considered the right of children to have their pain managed effectively. Yet, despite extensive research findings, policy guidelines and practice standard recommendations for the optimal management of paediatric pain, clinical practices remain inadequate. Empirical evidence definitively shows that unrelieved pain in children has only harmful consequences, with no benefits. Contributing factors identified in this undermanaged pain include the significant role of nurses. Nursing attitudes and beliefs about children’s pain experiences, the relationships nurses share with children who are suffering, (...) and knowledge deficits in pain management practices are all shown to impact unresolved pain in children. In this article, a relational ethics perspective is used to explore the need for nurses to engage in authentic relationships with children who are experiencing pain, and to use evidence-based practices to manage that pain in order for this indefensible suffering of children to end. (shrink)

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In pediatric critical care, nurses are the primary caregivers for critically ill children and are particularly vulnerable to moral distress. There is limited evidence on what approaches are effective to minimize moral distress among these nurses. To identify intervention attributes that critical care nurses with moral distress histories deem important to develop a moral distress intervention. We used a qualitative description approach. Participants were recruited using purposive sampling between October 2020 to May 2021 from pediatric critical care units in a (...) western Canadian province. We conducted individual semi-structured interviews via Zoom. A total of 10 registered nurses participated in the study. Four main themes were identified: (1) “I’m sorry, there’s nothing else”: increasing supports for patients and families; (2) “someone will commit suicide”: improving supports for nurses: (3) “Everyone needs to be heard”: improving patient care communication; and (4) “I didn’t see it coming”: providing education to mitigate moral distress. Most participants stated they wanted an intervention to improve communication among the healthcare team and noted changes to unit practices that could decrease moral distress. This is the first study that asks nurses what is needed to minimize their moral distress. Although there are multiple strategies in place to help nurses with difficult aspects of their work, additional strategies are needed to help nurses experiencing moral distress. Moving the research focus from identifying moral distress towards developing effective interventions is needed. Identifying what nurses need is critical to develop effective moral distress interventions. (shrink)

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The arts and nursing are profoundly connected. While the relationship between nursing and art has persisted over time, the majority of nursing scholarship on the arts has historically centered upon the art of nursing practice and the cultivation and application of aesthetic knowing. However, there is a burgeoning use of arts‐based strategies is nursing education, research, and practice. Correspondingly, there is a need to understand how such approaches can uniquely contribute knowledge to the nursing discipline in order to support arts‐integration (...) for nursing scholars. We structure our inquiry into arts’ contributions according to two dominant methods of engaging with arts‐based strategies: knowing about (e.g., phenomena) vis‐à‐vis art‐viewing, and knowing through (e.g., embodied knowing) vis‐à‐vis art‐making. In doing so, we explore critical contributions of art to nursing research and educational practices, including arts’ capacity to augment traditional research and communication approaches, democratize the research space, challenge issues of representation, and facilitate education, dissemination, and reflexivity. (shrink)

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This paper explores three cases of Do-It-Yourself, open-source technologies developed within the diverse array of topics and themes in the communities around the Public Laboratory for Open Technology and Science. These cases focus on aerial mapping, water quality monitoring and civic science practices. The techniques discussed have in common the use of accessible, community-built technologies for acquiring data. They are also concerned with embedding collaborative and open source principles into the objects, tools, social formations and data sharing practices that emerge (...) from these inquiries. The focus is on developing processes of collaborative design and experimentation through material engagement with technology and issues of concern. Problem-solving, here, is a tactic, while the strategy is an ongoing engagement with the problem of participation in its technological, social and political dimensions especially considering the increasing centralization and specialization of scientific and technological expertise. The authors also discuss and reflect on the Public Lab’s approach to civic science in light of ideas and practices of citizen/civic veillance, or “sousveillance”, by emphasizing people before data, and by investigating the new ways of seeing and doing that this shift in perspective might provide. (shrink)

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Recent Canadian and international events have sparked dialogue and action to address racism within the nursing discipline. While the urgency to seek and implement antiracist solutions demands the attention of nurses, we contend that a contemporary analysis of the mechanisms that continue to perpetuate racism within nursing's theoretical foundation is required first. This study reconsiders the perceived functions of racism within the current state of nursing concepts and theories. In particular, we expose the role that covert racism plays by inadvertently (...) sustaining racism through nursing's theoretical foundation, and how this process strengthens white supremacy. We argue that, in the absence of exposing these covert mechanisms, the development of solutions will be futile in dismantling racism. By making visible the covert mechanisms of racism within nursing's theoretical foundation, we attempt to establish an opportunity for the nursing discipline to dismantle its racist foundation and engage in sustained antiracist action. Lastly, this study demonstrates the need to equip the discipline with a moral commitment to antiracism in an effort to emancipate nursing from its racist legacies. (shrink)

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The global pandemic has intensified the risk of moral distress due to increased demands on already limited human resources and uncertainty of the pandemic’s trajectory. Nurses commonly experience moral distress: a conflict between the morally correct action and what they are required or capable of doing. Effective moral distress interventions are rare. For this reason, our team conducted a multi-phase research study to develop a moral distress intervention for pediatric critical care nurses. In this article, we discuss our multi-phase approach (...) to develop a moral distress intervention—proactive, interdisciplinary meeting. Our proposed intervention is a sequential compilation of empirical work couched within a relational ethics lens thus should point to enhanced potential for intervention effectiveness. (shrink)

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Responsible Research and Innovation provides a framework for judging the ethical qualities of innovation processes, however guidance for researchers on how to implement such practices is limited. Exploring RRI in the context of nanotechnology, this paper examines how the dispersed and interdisciplinary nature of the nanotechnology field somewhat hampers the abilities of individual researchers to control the innovation process. The ad-hoc nature of the field of nanotechnology, with its fluid boundaries and elusive membership, has thus far failed to establish a (...) strong collective agent, such as a professional organization, through which researchers could collectively steer technological development in light of social and environmental needs. In this case, individual researchers cannot innovate responsibly purely by themselves, but there is also no structural framework to ensure that responsible development of nanotechnologies takes place. We argue that, in such a case, individual researchers have a duty to collectivize. In short, researchers in situations where it is challenging for individual agents to achieve the goals of RRI are compelled to develop organizations to facilitate RRI. In this paper we establish and discuss the criteria under which individual researchers have this duty to collectivize. (shrink)

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Divine conceptualism takes all abstract objects to be propositions in the mind of God. I focus here on necessary propositions and contemporary claims that the laws of logic, understood as necessarily true propositions, provide us with an epistemic bridge to theological predication—specifically, to the claim that God exists. I argue that when contemporary versions of DC say ‘G/god’ they merely rename the notion of necessary truth, and fail to refer to God. Given that God is incomprehensible, epistemic access to the (...) state of propositions in the mind of God is extremely limited. (shrink)

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Name der Zeitschrift: Neue Zeitschrift für Systematische Theologie und Religionsphilosophie Jahrgang: 61 Heft: 3 Seiten: 333-353.

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Objective: Deep brain stimulation targeted to the ventral intermediate nucleus of the thalamus is effective for motor symptoms in essential tremor, but there is limited data on cognitive outcomes. We examined cognitive outcomes in a large cohort of ET DBS patients.Methods: In a retrospective analysis, we used repeated-measures ANOVA testing to examine whether the age of tremor onset, age at DBS surgery, hemisphere side implanted with lead, unilateral vs. bilateral implantations, and presence of surgical complications influenced the cognitive outcomes. Neuropsychological (...) outcomes of interest were verbal memory, executive functioning, working memory, language functioning, visuospatial functioning, and general cognitive function.Results: We identified 50 ET DBS patients; 29 males; the mean age of tremor onset was 35.84 years with a median age of 38 years. The mean age at DBS was 68.18 years. There were 37 unilateral 30 left, seven right, and 13 bilateral brain implantations. In the subgroup analysis, there was a significant interaction between assessment and age of tremor onset ; F = 4.47; p = 0.043 for working memory. The post hoc testing found improvements for younger onset ET. Similarly, there was a significant interaction between assessment and complications vs. no complications subgroups; F = 4.34; p = 0.043 for verbal memory with worsening scores seen for ET patients with complications. The remaining tests were not significant.Conclusion: In this large cohort of ET patients with, DBS was not accompanied by a significant decline in many cognitive domains. These outcomes were possibly related to the selection of patients with normal cognitive functioning before surgery, unilateral DBS implantations for the majority, and selection of patients with optimal response to DBS. (shrink)

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Even appropriate, ethically sound recommendations can generate angst. In this case, the principal investigator is concerned about the ethics consult recommendation to not inform the participan...

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Brannon Ellis’s book Calvin, Classical Trinitarianism, and the Aseity of the Son is a detailed historical theological study of Calvin’s defense of the doctrine of the self-existence of the person of the Son. The text emphasizes and endorses Calvin’s defense of the necessity and authority of special revelation and the biblical credentials of a distinction between two ways of speaking of God: nonrelatively as to the divine essence, and relatively as to the persons. With these commitments in mind, Calvin’s defense (...) of the aseity of the Son brings the full authority of Trinitarian confession to bear on philosophical theology and implicates at a methodological level the rationalistic tendencies of Thomistic natural theology and perfect being theology. (shrink)

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Name der Zeitschrift: Neue Zeitschrift für Systematische Theologie und Religionsphilosophie Jahrgang: 59 Heft: 1 Seiten: 245-264.

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Against the individualism and abstractionism of standard modern accounts of justification and epistemic merit, Wolterstorff incorporates the ethics of belief within the full scope of a person's socio-moral accountability, an accountability that ultimately flows from the teleology of the world as intended by its creator and from the inherent value of humans as bearers of the divine image. This study explores Nicholas Wolterstorff's theory of "situated rationality" from a theological point of view and argues that it is in fact a (...) doxastic ethic based upon the theology of Wolterstorff's neo-Calvinist, Kuyperian background, which emerges in terms of his biblical ethic and eschatology of shalom. Situated rationality, the sum of Wolterstorff's decades-long work on epistemology and rationality is a shalom doxastic ethic--a Christian, common grace ethic of doxastic (even religious doxastic) pluralism. (shrink)

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We compare the elementary theories ofShannon information and Kolmogorov complexity, the extent to which they have a common purpose, and wherethey are fundamentally different. We discuss and relate the basicnotions of both theories:Shannon entropy, Kolmogorov complexity,Shannon mutual informationand Kolmogorov (``algorithmic'') mutual information. We explainhow universal coding may be viewed as a middle ground betweenthe two theories. We considerShannon's rate distortion theory, whichquantifies useful (in a certain sense) information.We use the communication of information (...) as our guiding motif, and we explain howit relates to sequential question-answer sessions. (shrink)

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BackgroundAlthough patient advocates have developed templates for standard consent forms, evaluating patient preferences for first in human (FIH) and window of opportunity (Window) trial consent forms is critical due to their unique risks. FIH trials are the initial use of a novel compound in study participants. In contrast, Window trials give an investigational agent over a fixed duration to treatment naïve patients in the time between diagnosis and standard of care (SOC) surgery. Our goal was to determine the patient-preferred presentation (...) of important information in consent forms for these trials.MethodsThe study consisted of two phases: (1) analyses of oncology FIH and Window consents; (2) interviews of trial participants. FIH consent forms were analyzed for the location(s) of information stating that the study drug has not been tested in humans (FIH information); Window consents were analyzed for the location(s) of information stating the trial may delay SOC surgery (delay information). Participants were asked about their preferred placement of the information in their own trial’s consent form. The location of information in the consent forms was compared to the participants’ suggestions for placement. Results34 [17 FIH; 17 Window] of 42(81%) cancer patients approached participated. 25 consents [20 FIH; 5 Window] were analyzed. 19/20 FIH consent forms included FIH information, and 4/5 Window consent forms included delay information. 19/20(95%) FIH consent forms contained FIH information in the risks section 12/17(71%) patients preferred the same. Fourteen (82%) patients wanted FIH information in the purpose, but only 5(25%) consents mentioned it there. 9/17(53%) Window patients preferred delay information to be located early in the consent, before the “Risks” section. 3/5(60%) consents did this.ConclusionsDesigning consents that reflect patient preferences more accurately is essential for ethical informed consent; however, a one-size fits all approach will not accurately capture patient preferences. We found that preferences differed for FIH and Window trial consents, though for both, patients preferred key risk information early in the consent. Next steps include determining if FIH and Window consent templates improve understanding. (shrink)

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In lieu of an abstract, here is a brief excerpt of the content:Editors' IntroductionAlan D. Schrift andShannon SullivanThe articles in this special issue of the Journal of Speculative Philosophy were selected from revised versions of papers that were originally presented at the sixtieth annual meeting of the Society for Phenomenology and Existential Philosophy (SPEP) at Texas A&M University in College Station, Texas October 13–15, 2022.Michael Hardt of Duke University and Patricia Pisters of the University of Amsterdam gave the (...) SPEP 2022 Plenary Addresses, and we are grateful to be able to include their plenary papers in this special issue. Hardt's paper, "The Politics of Articulation and Strategic Multiplicities," treated SPEP members to an early peek at his newest book, The Subversive 70s (Oxford University Press, 2023). In this work, Hardt digs into the powerful resources for social movements that activists and theorists from the 1970s developed. As he argues, in many ways those activists and thinkers were ahead of their times—and also ahead of ours—in understanding how to analyze interwoven multiplicities of power and how to articulate and organize liberation struggles based on those multiplicities. Hardt brilliantly demonstrates how analyzing the progressive and revolutionary social [End Page 237] movements of the '70s can help us not only understand the roots of contemporary social and political struggles but also reclaim critical resources for those struggles.Patricia Pisters's paper, "Thinking with Fire: Elemental Philosophy and Media Technology," draws upon Gaston Bachelard's "fire complexes" to address a variety of pyrotechnical images appearing in contemporary cinema. Noting that elemental philosophy is on the rise in media studies and elsewhere, not least because of current environmental crises, fire is particularly engaging for its metaphorical, "matterphorical," and technological associations. While acknowledging fire as a material medium—cooking, heating, burning, etc.—Pisters's primary focus in her paper is on fire as an immaterial medium, and it is here that she turns to Bachelard's constellation of fire complexes—the Empedocles, Prometheus, and Novalis Complexes—to which she adds her own fourth complex, the Sita Complex. With these complexes, she provides readings of four cinematic productions that elucidate the annihilating, transgressive, sexual, and purifying qualities of fire, and she suggests that these entangled fire complexes present different kinds of combustive knowledge in which the element of fire manifests itself as material phenomenon of nature, the engine for modern life, and immaterial affective reverie of destruction, transgression, and sexuality.The other articles in this special issue have been organized according to five broad groupings. The first grouping, "On Latin American Philosophy," brings together three papers that engage Latin American philosophy, particularly as found in Mexican, Columbian, and Venezuelan history and political movements. In "Radicalizing Localization: Notes on Santiago Castro-Gómez's Genealogies of Coloniality," Julian Rios Acuña argues that Columbian philosopher Santiago Castro-Gómez develops a radical method of localization. This method allows Castro-Gómez to transform Foucauldian genealogy into genealogies of coloniality that grapple with the complexities of extreme violence produced by colonialism. In "Stefan Gandler's Renewal of Critical Theory from Latin America," Jake M. Bartholomew argues for a version of Critical Theory that is not bound by Europe but also remains true to its first-generation Marxist roots. Relocating to Mexico and advocating for Mexican philosophers, German-born philosopher Stefan Gandler shows how Latin American philosophy can enrich Critical Theory, providing more than can the second and third generations of Critical Theory because of its ability to analyze capitalism from outside the economic perspectives of the Global North. In "Two Versions of the Mestizo [End Page 238] Model: Toward a Theory of Anti-Blackness in Latin American Thought," Miguel Gualdron Ramirez criticizes the anti-Blackness that he sees at the heart of mestizo models of latinidad, or lo latinoamericano. Focusing on the concepts of liberation offered by Venezuelan theorist and politician Simón Bolívar and Mexican philosopher José de Vasconcelos, Ramirez reveals the exclusion and erasure of Black bodies, lives, and histories that ground their versions of Latinx identity and Latin American history. Together these three articles showcase how Latin American philosophy can enrich and expand the scope of Continental philosophy.The second grouping, "Liberatory Limits and Misalignments," features three articles... (shrink)

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To attain native-like competence, second language (L2) learners must establish mappings between familiar speech sounds and new phoneme categories. For example, Spanish learners of English must learn that [d] and [ð], which are allophones of the same phoneme in Spanish, can distinguish meaning in English (i.e. /deɪ/ ‘day’ and /ðeɪ/ ‘they’). Because adult listeners are less sensitive to allophonic than phonemic contrasts in their native language (L1), novel target language contrasts between L1 allophones may pose special difficulty for L2 learners. (...) We investigate whether advanced Spanish late-learners of English overcome native language mappings to establish new phonological relations between familiar phones. We report behavioral and magnetoencepholographic (MEG) evidence from two experiments that measured the sensitivity and pre-attentive processing of three listener groups (L1 English, L1 Spanish, and advanced Spanish late-learners of English) to differences between three nonword stimulus pairs ([idi]-[iði], [idi]-[iɾi], and [iði]-[iɾi]) which differ in phones that play a different functional role in Spanish and English. Spanish and English listeners demonstrated greater sensitivity (larger d’ scores) for nonword pairs distinguished by phonemic than by allophonic contrasts, mirroring previous findings. Spanish late-learners demonstrated sensitivity (large d’ scores and MMN responses) to all three contrasts, suggesting that these L2 learners may have established a novel [d]-[ð] contrast despite the phonological relatedness of these sounds in the L1. Our results suggest that phonological relatedness influences perceived similarity, as evidenced by the results of the native speaker groups, but may not cause persistent difficulty for advanced L2 learners. Instead, L2 learners are able to use cues that are present in their input to establish new mappings between familiar phones. (shrink)

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The Safe-by-Design approach in synthetic biology holds the promise of designing the building blocks of life in an organism guided by the value of safety. This paves a new way for using biotechnologies safely. However, the Safe-by-Design approach moves the bulk of the responsibility for safety to the actors in the research and development phase. Also, it assumes that safety can be defined and understood by all stakeholders in the same way. These assumptions are problematic and might actually undermine safety. (...) This research explores these assumptions through the use of a Group Decision Room. In this set up, anonymous and non-anonymous deliberation methods are used for different stakeholders to exchange views. During the session, a potential synthetic biology application is used as a case for investigation: the Food Warden, a biosensor contained in meat packaging for indicating the freshness of meat. Participants discuss what potential issues might arise, how responsibilities should be distributed in a forward-looking way, who is to blame if something would go wrong. They are also asked what safety and responsibility mean at different phases, and for different stakeholders. The results of the session are not generalizable, but provide valuable insights. Issues of safety cannot all be taken care of in the R&D phase. Also, when things go wrong, there are proximal and distal causes to consider. In addition, capacities of actors play an important role in defining their responsibilities. Last but not least, this research provides a new perspective on the role of instruction manuals in achieving safety. (shrink)

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The Safe-by-Design approach in synthetic biology holds the promise of designing the building blocks of life in an organism guided by the value of safety. This paves a new way for using biotechnologies safely. However, the Safe-by-Design approach moves the bulk of the responsibility for safety to the actors in the research and development phase. Also, it assumes that safety can be defined and understood by all stakeholders in the same way. These assumptions are problematic and might actually undermine safety. (...) This research explores these assumptions through the use of a Group Decision Room. In this set up, anonymous and non-anonymous deliberation methods are used for different stakeholders to exchange views. During the session, a potential synthetic biology application is used as a case for investigation: the Food Warden, a biosensor contained in meat packaging for indicating the freshness of meat. Participants discuss what potential issues might arise, how responsibilities should be distributed in a forward-looking way, who is to blame if something would go wrong. They are also asked what safety and responsibility mean at different phases, and for different stakeholders. The results of the session are not generalizable, but provide valuable insights. Issues of safety cannot all be taken care of in the R&D phase. Also, when things go wrong, there are proximal and distal causes to consider. In addition, capacities of actors play an important role in defining their responsibilities. Last but not least, this research provides a new perspective on the role of instruction manuals in achieving safety. (shrink)

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Dans « Unsettling the Coloniality of Being/Power/Truth/Freedom », Sylvia Wynter soutient que l’auto-cognition humaine de l’Europe occidentale a pris une forme adaptative pour servir ce qu’elle appelle « Man 1 » (le sujet libre, rationnel et politique) et « Man 2 » (le sujet bioéconomique). Selon Wynter, il serait nécessaire de faire advenir une forme d’auto-cognition humaine non adaptative et universelle, n’excluant pas la majorité de l’humanité, et qu’elle appelle homo narrans. Je soutiens que la distinction établie par Wynter entre (...) l’adaptatif et le non-adaptatif est cruciale, tout comme la nécessité de considérer les conséquences oppressives, pour le contact interculturel, de l’adaptatif. Je montre que ses arguments résonnent de manière significative avec les idées centrales de la vie éthique et de l’esprit absolu chez Hegel, et je fais référence à ces idées clés pour renforcer ses objectifs critiques, tout en suggérant de réviser son analyse de la manière dont ces modes de connaissance opèrent dans la culture humaine. Je soutiens que les pratiques de l’ homo narrans, en tant que pratiques de l’esprit absolu, sont toujours immanentes à la spécificité concrète des domaines que nous expérimentons comme notre chez-soi, et qui encourage l’adaptation dans la connaissance. Je soutiens de plus que nous mettons en œuvre des pratiques de transcendance précisément en prêtant attention à leur caractère corruptible et en favorisant le développement des contextes concrets dans lesquels elles s’inscrivent. Enfin, je me tourne vers la conception de l’ homo narrans en analysant la manière dont Hegel rend compte de la tragédie antique et moderne, et en montrant comment l’activité expressive est une capacité à raconter de nouvelles histoires qui reconfigurent les relations de l’humain avec le monde et avec lui-même, et ainsi les transforment continuellement. (shrink)

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In this paper, I analyze the witch's dance through the lens of Jahra “Rager” Wasasala's bloo/d/runk (2016) and Liz Lerman's Wicked Bodies (2020) whose invocation of the witch through the moving body, I argue, goes beyond merely metaphorical or esthetic applications, but enacts a certain dramaturgical function as a hinging threshold, a dynamic site of negotiation between material and immaterial forces. In my analysis, I sketch the contours of a hinge‐analytic called “riding the hinge,” seeking suspension in the hinges of (...) performance in order to account for how invisible forces assume presence on stage through the figure of the witch as she dances. “Riding the hinge,” I argue, is a practice performed by choreographers who engage the transformational presencing power of the body of the witch in performance, as well as a critical methodology for analyzing such works. (shrink)

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Based on Lucy Grealy’s memoir, Autobiography of a Face, this article explores the relationship between gender and illness in our culture, as well as the paradox of “intimacy without intimacy” in the clinical encounter. Included is a brief review of how authenticity, vulnerability, and mutual recognition of suffering can foster the kind of empathic doctor-patient relationship that Lucy Grealy sorely needed, but never received. As she says at the end of her memoir, “All those years I’d handed my ugliness over (...) to people, and seen only the different ways it was reflected back to me.”. (shrink)

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A discussion of W. K. C. Guthrie, A History of Greek Philosophy, Vol. I, The Earlier Presocratics and the Pythagoreans (xv/538 pp.); Vol. 11, The Presocratic Tradition from Parmenides to Democritus (xvii/553 pp.) Cambridge University Pres F. M. Cleve, The Giants of PreSophistic Greek Philosophy, An Attempt to Reconstruct Their Thoughts, Martinus Nijhoff D. E. Gershenson and D. A. Greenberg, Anaxagoras and the Birth of Physics, Blaisdell Publishing Company G. E. R. Lloyd, Polarity and Analogy, Cambridge University Press, 1966 (v/503 (...) pp.). (shrink)

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Two experiments investigated the role that mental set plays in reading aloud using the task choice procedure developed by Besner and Care [Besner, D., & Care, S. . A paradigm for exploring what the mind does while deciding what it should do. Canadian Journal of Experimental Psychology, 57, 311–320]. Subjects were presented with a word, and asked to either read it aloud or decide whether it appeared in upper/lower case. Task information, in the form of a brief auditory cue, appeared (...) 750 ms before the word, or at the same time as the word. Experiment 1 yielded evidence consistent with the claim that at least some pre-lexical processing can be carried out in parallel with decoding the task cue . Experiment 2 provided evidence that such processing is restricted to pre-lexical levels . These data suggest that a task set is a necessary preliminary to lexical processing when reading aloud. (shrink)

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Searching for information is critical in many situations. In medicine, for instance, careful choice of a diagnostic test can help narrow down the range of plausible diseases that the patient might have. In a probabilistic framework, test selection is often modeled by assuming that people's goal is to reduce uncertainty about possible states of the world. In cognitive science, psychology, and medical decision making,Shannon entropy is the most prominent and most widely used model to formalize probabilistic uncertainty and (...) the reduction thereof. However, a variety of alternative entropy metrics (Hartley, Quadratic, Tsallis, Rényi, and more) are popular in the social and the natural sciences, computer science, and philosophy of science. Particular entropy measures have been predominant in particular research areas, and it is often an open issue whether these divergences emerge from different theoretical and practical goals or are merely due to historical accident. Cutting across disciplinary boundaries, we show that several entropy and entropy reduction measures arise as special cases in a unified formalism, the Sharma–Mittal framework. Using mathematical results, computer simulations, and analyses of published behavioral data, we discuss four key questions: How do various entropy models relate to each other? What insights can be obtained by considering diverse entropy models within a unified framework? What is the psychological plausibility of different entropy models? What new questions and insights for research on human information acquisition follow? Our work provides several new pathways for theoretical and empirical research, reconciling apparently conflicting approaches and empirical findings within a comprehensive and unified information‐theoretic formalism. (shrink)

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A brief personal history is given about how information theory can be applied to binding sites of genetic control molecules on nucleic acids. The primary example used is ribosome binding sites in Escherichia coli. Once the sites are aligned, the information needed to describe the sites can be computed using ClaudeShannon’s method. This is displayed by a computer graphic called a sequence logo. The logo represents an average binding site, and the mathematics easily allows one to determine the (...) components of this average. That is, given a set of binding sites, the information for individual binding sites can also be computed. One can go further and predict the information of sites that are not in the original data set. Information theory also allows one to model the flexibility of ribosome binding sites, and this led us to a simple model for ribosome translational initiation in which the molecular components fit together only when the ribosome is at a good ribosome binding site. Since information theory is general, the same mathematics applies to human splice junctions, where we can predict the effect of sequence changes that cause human genetic diseases and cancer. The second example given is the Pribnow “box,” which, when viewed by the information theory method, reveals a mechanism for initiation of both transcription and DNA replication. Replication, transcription, splicing, and translation into protein represent the central dogma, so these examples show how molecular information theory is contributing to our knowledge of basic biology. (shrink)

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How can the development of ideas in a scientific field be studied over time? We apply unsupervised topic modeling to the ACL Anthology to analyze historical trends in the field of Computational Linguistics from 1978 to 2006. We induce topic clusters using Latent Dirichlet Allocation, and examine the strength of each topic over time. Our methods find trends in the field including the rise of probabilistic methods starting in 1988, a steady increase in applications, and a sharp decline of research (...) in semantics and understanding between 1978 and 2001, possibly rising again after 2001. We also introduce a model of the diversity of ideas, topic entropy, using it to show that COLING is a more diverse conference than ACL, but that both conferences as well as EMNLP are becoming broader over time. Finally, we apply Jensen-Shannon divergence of topic distributions to show that all three conferences are converging in the topics they cover. (shrink)

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We examine the problem of the existence (in classical and/or quantum physics) of longitudinal limitations of measurability, defined as limitations preventing the measurement of a given quantity with arbitrarily high accuracy. We consider a measuring device as a generalized communication system, which enables us to use methods of information theory. As a direct consequence of theShannon theorem on channel capacity, we obtain an inequality which limits the accuracy of a measurement in terms of the average power necessary to (...) transmit the information content of the measurement itself. This inequality holds in a classical as well as in a quantum framework. (shrink)

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For Aristotle, human beings are deeply social creatures, a trait that contributes to the meaningfulness of our lives. In more recent philosophy, Jean-Paul Sartre similarly argued that our existence is informed by our unavoidable social relations, even as he also emphasized the quest for individual freedom. What happens when the “Other” in these relationships are artifacts, such as robots? Can robots liberate us from our existential dependence on other humans? Should they do so, in light of Aristotelian and Sartrean ethics? (...) With recent technological advancements, an increasing amount of scholarly literature has emerged about the use, meaning, and limits of innovations such as sex- or love-robots. In this article, we will first explore the relevance of Aristotle’s virtue ethics in relation to romantic love (eros) and social technologies. We will then examine Sartre’s existentialism as in some respects a continuation of Aristotelian ethics and assess its applicability to eros in our technological age. Finally, we will conduct a case study on love-robots, reviewing recent scientific studies to evaluate their ethical and social implications from the perspectives of Aristotle and Sartre. We argue that neither Aristotle nor Sartre would endorse the view of love-robots as part of our social well-being. (shrink)

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Pour étendre la notion d'entropie, l'auteur tente de dégager la signification de la “probabilité relative” w de Boltzmann dans sa formule S = k.log.w. Celui-ci introduit implicitement une partition d'un ensemble E de molécules en classes d'équivalence, les divers états macroscopiques du gaz; w est le rapport de la probabilité de l'état dont on cherche à définir l'entropie à celle de l'état le plus improbable.L'auteur propose de généraliser le concept toutes les fois ob sur un ensemble probabilisable E il sera (...) possible de faire une partition.La “complexité d'une structure” peut être définie par le nombre d'aspects différents que peut prendre le graphe sous-jacent à celle-ci. Alors toute stricture a une probabilité d'occurrence, et l'on peut y définir une G-entropie.Appliquant ensuite ce concept à la théorie de l'information deShannon, l'auteur montre que la quantité d'information apportée par un message est différente de la G-entropie, mais que les deux grandeurs y prennent fortuitement la même valeur. Le concept permet également d'introduire une information liée au message, une autre au “code”, et une information totale.Le concept d'émergence permet ensuite de comprendre la raison pour laquelle celle-ci s'accompagne d'une augmentation de G-neguentropie.L'entropie est considérée depuis Boltzmann comme une borne mesure du désordre d'un gaz, d'où son intérêt en morphogénèse, en théorie des systèmes, et de l'information. Cependant son application directe pose des problèmes, et il parait préférable de tenter auparavant de généraliser le concept en le randant plus abstrait. La première difficulté à laquelle on se heurte alors est l'interprétation du nombre w de la formule de Boltzmann. (shrink)

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