Movatterモバイル変換

Since the introduction and widespread adoption of chemical herbicides, “weed management” has become almost synonymous with “herbicide management.” Over-reliance on herbicides and herbicide-resistant crops has given rise to herbicide resistant weeds. Integrated weed management (IWM) identifies three strategies for weed management— biological-cultural, chemical-technological, mechanical-physical—and recommends combining all three to mitigate herbicide resistance. However, adoption of IWM has stalled, and research to understand the adoption of IWM practices has focused on single stakeholder groups, especially farmers. In contrast, decisions about weed management (...) often occur within a social ecosystem where multiple stakeholder groups co-create knowledge and practices. To more holistically investigate perceptions and decision-making related to herbicide resistant weed management, we conducted 23 in-depth interviews in combination with Q methodology with farmers and public-/private-sector agricultural professionals in the state of Georgia (U.S.). Our investigation focused on the management of an increasingly herbicide resistant weed, Palmer amaranth, which enabled broader conversations about agricultural systems, farmer livelihoods, and sustainability. Factor and thematic analyses allowed us to identify and characterize two distinct typologies: one primarily valued agronomic efficiency and relied upon chemical-technological management practices, while the other valued diversifying weed management strategies as the pathway to agronomic and economic success. Typologies diverged substantially in attitudes toward the three weed management strategies, the role of technology, and systems management generally. These two viewpoints have implications for how we understand underlying stakeholder motivations and choices around weed management strategies, both of which are crucial in promoting and supporting farmer use of diverse, ecologically-sound, weed management strategies. (shrink)

Direct download(3 more)   Export citation   Bookmark  

No categories

Direct download(2 more)   Export citation   Bookmark  

Direct download(2 more)   Export citation   Bookmark  

The precise regulation of the transcription of genes is essential for normal development and for the maintenance of life. Aberrant gene expression changes drive many human diseases. Despite this, we still do not completely understand how precise gene regulation is controlled in living systems. Enhancers are key regulatory elements that enable cells to specifically activate genes in response to environmental cues, or in a stage or tissue‐specific manner. Any model of enhancer activity needs to answer two main questions: (1) how (...) enhancers are able to identify and act on specific genes and (2) how enhancers influence transcription. To address these points, we first outline some of the basic principles that can be established from simpler prokaryotic systems, then discuss recent work on aberrant enhancer activity in leukemia. We argue that highly specific protein–protein interactions are a key driver of enhancer‐promoter proximity, allowing enhancer‐bound factors to directly act on RNA polymerase and activate transcription. (shrink)

Direct download(2 more)   Export citation   Bookmark  

No categories

Direct download(3 more)   Export citation   Bookmark   11 citations  

The recent debates concerning divine action in the context of quantum mechanics are examined with particular reference to the work of William Pollard, Robert J. Russell, Thomas Tracy, Nancey Murphy, and Keith Ward. The concept of a quantum mechanical “event” is elucidated and shown to be at the center of this debate. An attempt is made to clarify the claims made by the protagonists of quantum mechanical divine action by considering the measurement process of quantum mechanics in detail. Four possibilities (...) for divine influence on quantum mechanics are identified and the theological and scientific implications of each discussed. The conclusion reached is that quantum mechanics is not easily reconciled with the doctrine of divine action. (shrink)

Direct download(4 more)   Export citation   Bookmark   9 citations  

The Buddhist construct of mindfulness is a central element of mindfulness-based interventions and derives from a systematic phenomenological programme developed over several millennia to investigate subjective experience. Enthusiasm for ?mindfulness? in Western psychological and other science has resulted in proliferation of definitions, operationalizations and self-report inventories that purport to measure mindful awareness as a trait. This paper addresses a number of seemingly intractable issues regarding current attempts to characterize mindfulness and also highlights a number of vulnerabilities in this domain that (...) may lead to denaturing, distortion, dilution or reification of Buddhist constructs related to mindfulness. Enriching positivist Western psychological paradigms with a detailed and complex Buddhist phenomenology of the mind may require greater study and long-term direct practice of insight meditation than is currently common among psychologists and other scientists. Pursuit of such an approach would seem a necessary precondition for attempts to characterize and quantify mindfulness. (shrink)

Direct download(4 more)   Export citation   Bookmark   25 citations  

Emotion recognition skills and the ability to understand the mental states of others are crucial for normal social functioning. Conversely, delays and impairments in these processes can have a profound impact on capability to engage in, maintain, and effectively regulate social interactions. Therefore, this study aimed to compare the performance of 42 autistic children, 45 unaffected siblings, and 41 typically developing controls on the Affect Recognition and Theory of Mind subtests of the Developmental Neuropsychological Assessment Battery. There were no significant (...) differences between siblings and TD controls. Autistic children showed significantly poorer performance on AR when compared to TD controls and on TOM when compared to both TD controls and unaffected siblings. An additional comparison of ASD, unaffected sibling and TD control subsamples, matched on full-scale IQ, revealed no group differences for either AR or TOM. AR and TOM processes have received less research attention in siblings of autistic children and remain less well characterized. Therefore, despite limitations, findings reported here contribute to our growing understanding of AR and TOM abilities in siblings of autistic children and highlight important future research directions. (shrink)

Direct download(2 more)   Export citation   Bookmark  

This article is a theoretical and empirical exploration of the meaning that accompanies contractual agreements, such as the End-User License Agreements (EULAs) that participants of online communities are required to sign as a condition of participation. As our study indicates, clicking “I agree” on the often lengthy conditions presented during the installation and updating process typically permits third parties (including researchers) to monitor the digitally-mediated actions of users. Through our small-scale study in which we asked participants which terms of EULAs (...) they would find agreeable, the majority confirmed that they simply clicked through the terms presented to them without much knowledge about the terms to which they were agreeing. From a research ethics standpoint, we reflect upon whether or not informed consent is achieved in these cases and pose a challenge to the academic research community to attend to the socio-technical shift from informed consent to a more nebulous concept of contractual agreement, online and offline. (shrink)

No categories

Direct download   Export citation   Bookmark   3 citations  

Alexithymia, psychological distress, and posttraumatic stress disorder (PTSD) are highly related constructs. The ongoing debate about the nature and relationship between these constructs is perpetuated by an overreliance on cross-sectional research. We examined the longitudinal interactive relationship between alexithymia, psychological distress, and PTSD. We hypothesised that there is an interactive relationship between the three constructs. Military personnel (N = 1871) completed the Toronto Alexithymia Scale, the Kessler 10 and a PTSD Checklist (PCL-C) at pre-deployment, post-deployment, and at 3–4 years following (...) the post-deployment assessment. We initially tested whether psychological distress is either a moderator or mediator in the relationship between alexithymia and PTSD across the time points. General psychological distress was a partial mediator of total PTSD severity and hyperarousal symptomology at all three time points. Psychological distress fully mediated re-experiencing and avoidance symptomology at all three time points. Our results suggest that those with alexithymia are at longitudinal risk of developing more severe PTSD symptomology and experiencing hyperarousal irrespective of temporal proximity to traumatic exposure. Further, vulnerability to the emergence of re-experiencing and avoidance symptomology for those with alexithymia is increased when one experiences greater distress. Our results show that alexithymia is a persistent risk factor for PTSD symptomology. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Export citation   Bookmark  

Direct download(2 more)   Export citation   Bookmark  

Direct download(3 more)   Export citation   Bookmark   1 citation  

Export citation   Bookmark  

Direct download(3 more)   Export citation   Bookmark   142 citations  

No categories

Direct download(4 more)   Export citation   Bookmark  

Direct download(4 more)   Export citation   Bookmark  

The Embracing Revenge account of semantic paradox avoids the expressive limitations of previous approaches based on the Kripkean fixed point construction by replacing a single language with an indefinitely extensible sequence of languages, each of which contains the resources to fully characterize the semantics of the previous languages. In this paper we extend the account developed in Cook (2008), Cook (2009), Schlenker (2010), and Tourville and Cook (2016) via the addition of intensional operators such as ``is paradoxical''. In this extended (...) framework we are able to characterize the difference between sentences, such as the Liar and the Truth-teller, that receive the same semantic value in minimal fixed points yet seem to involve distinct semantic phenomena. (shrink)

Direct download(3 more)   Export citation   Bookmark   9 citations  

The Revenge Problem threatens every approach to the semantic paradoxes that proceeds by introducing nonclassical semantic values. Given any such collection Δ of additional semantic values, one can construct a Revenge sentence:This sentence is either false or has a value in Δ.TheEmbracing Revengeview, developed independently by Roy T. Cook and Phlippe Schlenker, addresses this problem by suggesting that the class of nonclassical semantic values is indefinitely extensible, with each successive Revenge sentence introducing a new ‘pathological’ semantic value into the discourse. (...) The view is explicitly motivated in terms of the idea that every notion thatseemsto be expressible should, if at all possible,beexpressible. Extant work on the Embracing Revenge view has failed to live up to this promise, since the formal languages developed within such work are expressively impoverished. We rectify this here by developing a much richer formal language, and semantics for that language, and we then prove an extremely powerful expressive completeness result for the system in question. (shrink)

Direct download(2 more)   Export citation   Bookmark   5 citations  

Researchers have proposed that blocking facial feedback via glabellar-region botulinum toxin injections can reduce depression. Random-effects meta-analyses of studies that administered GBTX...

Direct download(3 more)   Export citation   Bookmark  

Direct download(6 more)   Export citation   Bookmark  

The book aims at equipping you with 21st Century Skills key life skills that will drive your future employability, promotion and career success. These are required for effective reasoning, writing and decision-making in changing, evolving environments. You give reasons for what you do and think every day. You argue. You often argue about things that matter to you. For example you might argue that you are the best candidate for promotion, about whether your company should invest in China, about the (...) best way to help a friend or about what the right thing to do is in an ethical dilemma. The list is up to you. If you work your way carefully through this book you will become better at reasoning both in terms of understanding and clarifying other peoples’ arguments and also at producing increasingly sophisticated and compelling arguments of your own. You will learn how to recognize common but often seductive mistakes in reasoning and so be empowered to avoid making these mistakes yourself. Your writing and oral presentations will improve and you will hone your ability to define crucial terms in argument, debate and discussion. As this book is specifically written with everyday language considerations in mind, it is a valuable tool for anyone to understand, evaluate and construct arguments in ordinary language. (shrink)

No categories

Direct download(2 more)   Export citation   Bookmark  

Direct download(2 more)   Export citation   Bookmark  

The financial crisis of 2008 raised the politics of regulation to a new level of practical and scholarly attention. We find that recent reforms in U.S. financial markets hinge on intellectual resources and new organizational actors that are missing from existing concepts of regulatory capture or business power. In particular, small advocacy groups have proven significantly more successful in opposing the financial services industry than existing theories predict. By maintaining the salience of reform goals, elaborating new analytic frameworks, and deploying (...) specialized expertise in post-enactment debates, smaller organizations have contributed to a diffuse but often decisive network of pro-reform actors. Through the rule-writing process for macroprudential supervision and derivatives trading, these small organizations coalesced with other groups to form a new stability alliance that has so far prevented industry groups from dominating financial regulation to the degree that occurred in earlier cases of regulatory reform. (shrink)

No categories

Direct download   Export citation   Bookmark  

In this commentary, we critique the appropriate behavioural features for evolutionary genetic analysis, the role of the environment, and the viability of a general evolutionary genetic model for all common mental disorders. In light of these issues, we suggest that the authors may have prematurely discounted the role of some of the mechanisms they review, particularly balancing selection. (Published Online November 9 2006).

Direct download(6 more)   Export citation   Bookmark  

Direct download   Export citation   Bookmark   60 citations  

G. E. Moore attended Russell’s lectures on Leibniz in 1899 and kept detailed notes which have been preserved among his papers. The present article prints his notes in their entirety with annotations.

No categories

Direct download(2 more)   Export citation   Bookmark  

Export citation   Bookmark  

We extend the Embracing Revenge account of the semantic paradoxes by constructing two distinct consequence relations that reflect, in different ways, the transfinitely-many-valued semantics developed in earlier work. In particular, we adapt the underlying ideas of “gappy” approaches based on K3, and “glutty” approaches based on LP, to the Embracing Revenge framework, by treating the infinitely many non-classical truth values as infinitely many ways that a sentence might fail to receive a classical truth value in the former case, and as (...) infinitely many ways that a sentence might receive both classical truth values in the latter. In order to obtain deductive systems that are very nearly classical, we need to utilize different conditionals (and different negations) in each logic. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Direct download(2 more)   Export citation   Bookmark  

Direct download(3 more)   Export citation   Bookmark   4 citations  

Russell’s most important source for his book on Leibniz was C. I. Gerhardt’s seven-volume Die philosophischen Schriften von Gottfried Wilhelm Leibniz. Russell heavily annotated his copy of this important edition of Leibniz’s works. The present paper records all Russell’s marginalia, with the exception of passages marked merely by vertical lines in the margin, and provides explanatory commentary.

No categories

Direct download(2 more)   Export citation   Bookmark   2 citations  

In preparation for his lectures on Leibniz delivered in Cambridge in Lent Term 1899, Russell started in the summer of 1898 to keep notes on writings by and about Leibniz in a large notebook of the type he commonly used for notetaking at this time. This article prints, with annotation, all the material on Leibniz in that notebook.

No categories

Direct download(2 more)   Export citation   Bookmark   2 citations  

Stimuli such as surprised faces are ambiguous in that they are associated with both positive and negative outcomes. Interestingly, people differ reliably in whether they evaluate these and other ambiguous stimuli as positive or negative, and we have argued that a positive evaluation relies in part on a biasing of the appraisal processes via reappraisal. To further test this idea, we conducted two studies to evaluate whether increasing the cognitive accessibility of reappraisal through a brief emotion regulation task would lead (...) to an increase in positive evaluations of ambiguity. Supporting this prediction, we demonstrated that cuing reappraisal, but not in three other forms of emotion regulation (Study 1a-d; n = 120), increased positive evaluations of ambiguous faces. In a sign of robustness, we also found that the effect of reappraisal generalised from ambiguous faces to ambiguous scenes (Study 2; n = 34). Collectively, these findings suggest that reappraisal may play a key role in determining responses to ambiguous stimuli. We discuss these findings in the context of affective flexibility, and suggest that valence bias (i.e. the tendency to evaluate ambiguity more positively or negatively) represents a novel approach to measuring implicit emotion regulation. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Direct download(3 more)   Export citation   Bookmark   2 citations  

Export citation   Bookmark  

Direct download   Export citation   Bookmark  

Direct download(2 more)   Export citation   Bookmark  

In the TV series, Joe Miller is the stop‐cap which keeps James Holden occupied so he does not have time to send constant broadcasts out to the world. When we think about Holden helping others, why he's always in the midst of things, it's helpful to think about what distinguishes Holden from other characters in the series and what makes him unique—that he grew up on a farm. Holden is the exact opposite of Dresden, Strickland, Mao, and Marco. And that's (...) what Naomi loves about him. The Expanse is dark science fiction whose references are to a war of all against all (Thomas Hobbes’ Leviathan), to the massacre of American Indians, and to a dark intelligence that maybe intended the ultimate domination of nature. And one of their protagonists is a guy who thinks he's a knight tilting at windmills. (shrink)

No categories

Direct download   Export citation   Bookmark  

Direct download(5 more)   Export citation   Bookmark   1 citation  

No categories

Export citation   Bookmark   1 citation  

Direct download(2 more)   Export citation   Bookmark  

The rapid developments in technologies -- especially computing and the advent of many 'smart' devices, as well as rapid and perpetual communication via the Internet -- has led to a frequently voiced view whichNicholas Agar describes as 'radical optimism'. Radical optimists claim that accelerating technical progress will soon end poverty, disease, and ignorance, and improve our happiness and well-being. Agar disputes the claim that technological progress will automatically produce great improvements in subjective well-being. He argues that radical optimism (...) 'assigns to technological progress an undeserved pre-eminence among all the goals pursued by our civilization'. Instead, Agar uses the most recent psychological studies about human perceptions of well-being to create a realistic model of the impact technology will have. Although he accepts that technological advance does produce benefits, he insists that these are significantly less than those proposed by the radical optimists, and aspects of such progress can also pose a threat to values such as social justice and our relationship with nature, while problems such as poverty cannot be understood in technological terms. He concludes by arguing that a more realistic assessment of the benefits that technological advance can bring will allow us to better manage its risks in future. (shrink)

Direct download   Export citation   Bookmark   6 citations  

This article shares reflections from members of the community of philosophers of education in the United States and Canada who were invited to express their insights in response to the theme ‘Snaps...

Direct download(2 more)   Export citation   Bookmark   9 citations  

This study explores experiences of ex-incels—men who have withdrawn from incel communities—through eleven qualitative interviews analysed using R.W. Connell’s hegemonic masculinity (HM) framework. Findings reveal some ex-incels adopt flexible masculinities, while others struggle with prescriptive norms perpetuated by the anti-feminist ‘manosphere’. Findings spotlight identity reconstructions, where men both reject and remain influenced by rigid archetypes, performing hybrid masculinities. This study deepens understanding of incel ideology, its impact on identity, and interplay between inceldom and masculinities via contributing to hybrid masculinities theorising. (...) Insights presents applications for gender theory and inform further research on HM’s influence within unique cultural contexts. (shrink)

Direct download(2 more)   Export citation   Bookmark  

To be committed to the truth of a proposition is to constrain one’s options in a certain way: one may not reason as if it is false, and one is obligated to reason as if it is true. Though one is often committed to the truth of the propositions that one believes, the states of belief and commitment are distinct. For historical reasons, however, they are rarely distinguished. Distinguishing between the two states allows for a defense of epistemic deontology against (...) the charge that beliefs are not under the voluntary control of believers, and so cannot be subject to deontic evaluation. It also allows for the resolution of some disputes between naturalists and non-naturalists in epistemology, and permits us to account for obvious facts about the connection between belief and truth in a theoretically parsimonious way. (shrink)

Direct download(2 more)   Export citation   Bookmark   14 citations  

In this paper, we offer a novel analysis of bridging, paying particular attention to definite descriptions. We argue that extant theories don't do justice to the way different knowledge resources interact. In line with Hobbs (1979), we claim that the rhetorical connections between the propositions introduced in the text play an important part. But our work is distinct from his in that we model how this source of information interacts with compositional and lexical semantics. We formalize bridging in a framework (...) known as SDRT (Asher 1993). We demonstrate that this provides a richer, more accurate interpretation of definite descriptions than has been offered so far. (shrink)

Direct download(5 more)   Export citation   Bookmark   19 citations  

No categories

Direct download   Export citation   Bookmark   1 citation  

This paper responds to Nick Bostrom’s suggestion that the threat of a human-unfriendly superintelligenceshould lead us to delay or rethink progress in AI. I allow that progress in AI presents problems that we are currently unable to solve. However; we should distinguish between currently unsolved problems for which there are rational expectations of solutions and currently unsolved problems for which no such expectation is appropriate. The problem of a human-unfriendly superintelligence belongs to the first category. It is rational to proceed (...) on that assumption that we will solve it. These observations do not reduce to zero the existential threat from superintelligence. But we should not permit fear of very improbable negative outcomes to delay the arrival of the expected benefits from AI. (shrink)

No categories

Export citation   Bookmark   1 citation  

This book is a critical overview of the manner in which the concept of miracle is understood and discussed in contemporary analytic philosophy of religion. In its most basic sense, a miracle is an unusual, unexpected, observable event brought about by direct divine intervention. The focus of this study is on the key conceptual, epistemological, and theological issues that this definition of the miraculous continues to raise. As this topic is of existential as well as theoretical interest to many, there (...) is no reason to believe the concept of miracle won't continue to be of ongoing interest to philosophers. (shrink)

No categories

Direct download   Export citation   Bookmark   4 citations