Results for 'Ahmed Metwally'

772 found
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  1.  27
    Opportunities and Pitfalls in Surface-Wave Interpretation.Gerard T. Schuster, Jing Li, Kai Lu, Ahmed Metwally, Abdullah AlTheyab & Sherif Hanafy - 2017 - Interpretation: SEG 5 (1):T131-T141.
    Many explorationists think of surface waves as the most damaging noise in land seismic data. Thus, much effort is spent in designing geophone arrays and filtering methods that attenuate these noisy events. It is now becoming apparent that surface waves can be a valuable ally in characterizing the near-surface geology. This review aims to find out how the interpreter can exploit some of the many opportunities available in surface waves recorded in land seismic data. For example, the dispersion curves associated (...)
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  2.  5
    Egyptians' Social Acceptance and Consenting Options for Posthumous Organ Donation; a Cross Sectional Study.Ammal M. Metwally, Ghada A. Abdel-Latif, Lobna Eletreby, Ahmed Aboulghate, Amira Mohsen, Hala A. Amer, Rehan M. Saleh, Dalia M. Elmosalami, Hend I. Salama, Safaa I. Abd El Hady, Raefa R. Alam, Hanan A. Mohamed, Hanan M. Badran, Hanan E. Eltokhy, Hazem Elhariri, Thanaa Rabah, Mohamed Abdelrahman, Nihad A. Ibrahim & Nada Chami - 2020 - BMC Medical Ethics 21 (1):1-14.
    BackgroundOrgan donation has become one of the most effective ways to save lives and improve the quality of life for patients with end-stage organ failure. No previous studies have investigated the preferences for the different consenting options for organ donation in Egypt. This study aims to assess Egyptians’ preferences regarding consenting options for posthumous organ donation, and measure their awareness and acceptance of the Egyptian law articles regulating organ donation.MethodsA cross sectional study was conducted among 2743 participants over two years. (...)
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  3.  6
    Decentralized Robust Saturated Control of Power Systems Using Reachable Sets.Hisham M. Soliman, Hassan A. Yousef, Rashid Al-Abri & Khaled A. El-Metwally - 2018 - Complexity 2018:1-12.
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  4. Reply to Ahmed.Lee Walters - 2011 - Proceedings of the Aristotelian Society 111 (1pt1):123-133.
    I reply to Ahmed’s rejection (2011) of my argument (Walters 2009) that all counterfactuals with true antecedents and consequents are themselves true.
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  5.  1
    Disability-Free Life Expectancy at Old Ages in Egypt.Soha Metwally - forthcoming - Journal of Biosocial Science:1-15.
    This study aimed to estimate among the older population in Egypt : 1) disability prevalence rates, their levels of severity and the common types and 2) disability-free life expectancy by sex, age and disability type. Data were from the nationally representative 2016 Household Observatory Survey, with 4658 persons aged 60+ constituting the study sample population. To identify individuals with disabilities, the HOS asked respondents a short set of questions on functional difficulties, as suggested by the United Nations Washington Group on (...)
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  6. The Promise of Happiness.Sara Ahmed - 2010 - Duke University Press.
    _The Promise of Happiness_ is a provocative cultural critique of the imperative to be happy. It asks what follows when we make our desires and even our own happiness conditional on the happiness of others: “I just want you to be happy”; “I’m happy if you’re happy.” Combining philosophy and feminist cultural studies, Sara Ahmed reveals the affective and moral work performed by the “happiness duty,” the expectation that we will be made happy by taking part in that which (...)
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  7.  81
    Argumentation and Fallacy in the Justification of the 2003 War on Iraq.Ahmed Sahlane - 2012 - Argumentation 26 (4):459-488.
    The present study examined how the pre-war debate of the US decision to invade Iraq (in March 2003) was discursively constructed in the US/British mainstream newspaper opinion/editorial (op/ed) argumentation. Drawing on theoretical insights from critical discourse analysis and argumentation theory, I problematised the fallacious discussion used in the pro-war op/eds to build up a ‘moral/legal case’ for war on Iraq based on adversarial (rather than dialogical) argumentation. The proponents of war deployed ‘instrumental rationality’ (ends-justify-means reasoning), ‘ethical necessity’ (Bush’s ‘Preemption Doctrine’) (...)
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  8.  16
    An Interpolation Theorem for First Order Logic with Infinitary Predicates.Tarek Sayed-Ahmed - 2007 - Logic Journal of the IGPL 15 (1):21-32.
    An interpolation Theorem is proved for first order logic with infinitary predicates. Our proof is algebraic via cylindric algebras.1.
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  9.  6
    On Notions of Representability for Cylindric-Polyadic Algebras, and a Solution to the Finitizability Problem for Quantifier Logics with Equality.Tarek Sayed Ahmed - 2015 - Mathematical Logic Quarterly 61 (6):418-477.
  10.  26
    A Neat Embedding Theorem For Expansions Of Cylindric Algebras.Tarek Sayed-Ahmed & Basim Samir - 2007 - Logic Journal of the IGPL 15 (1):41-51.
    We generalize two classical results on cylindric algebra to certain expansions of cylindric algebras where the extra operations are defined via first order formulas. The first result is the Neat Embedding Theorem of Henkin and the second is Monk's classical non-finitizability result of the class of representable algebras. As a corollary we obtain known classical results of Johnson and Biro published in the Journal of Symbolic logic.
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  11.  13
    The Class of Infinite Dimensional Neat Reducts of Quasi‐Polyadic Algebras is Not Axiomatizable.Tarek Sayed Ahmed - 2006 - Mathematical Logic Quarterly 52 (1):106-112.
    SC, CA, QA and QEA denote the classes of Pinter's substitution algebras, Tarski's cylindric algebras, Halmos' quasi-polyadic algebras and quasi-polyadic equality algebras, respectively. Let ω ≤ α < β and let K ∈ {SC,CA,QA,QEA}. We show that the class of α -dimensional neat reducts of algebras in Kβ is not elementary. This solves a problem in [3]. Also our result generalizes results proved in [2] and [3].
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  12.  33
    Sara Ahmed: Willful Subjects: Duke University Press, Durham NC, 2014, 320 Pp, $89.95 HB, ISBN 978-0-8223-5767-4, $24.95 PB, ISBN 978-0-8223-5783-4.Lizzy Willmington - 2015 - Feminist Legal Studies 23 (2):235-239.
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  13.  36
    Neat Embeddings as Adjoint Situations.Tarek Sayed-Ahmed - 2015 - Synthese 192 (7):1-37.
    Looking at the operation of forming neat $\alpha $ -reducts as a functor, with $\alpha $ an infinite ordinal, we investigate when such a functor obtained by truncating $\omega $ dimensions, has a right adjoint. We show that the neat reduct functor for representable cylindric algebras does not have a right adjoint, while that of polyadic algebras is an equivalence. We relate this categorial result to several amalgamation properties for classes of representable algebras. We show that the variety of cylindric (...)
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  14.  17
    Neat Embeddings, Omitting Types, and Interpolation: An Overview.Sayed Ahmed Tarek - 2003 - Notre Dame Journal of Formal Logic 44 (3):157-173.
    We survey various results on the relationship among neat embeddings (a notion special to cylindric algebras), complete representations, omitting types, and amalgamation. A hitherto unpublished application of algebraic logic to omitting types of first-order logic is given.
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  15.  8
    Three Interpolation Theorems for Typeless Logics.T. Sayed Ahmed - 2012 - Logic Journal of the IGPL 20 (6):1001-1037.
  16.  68
    Beyond Humanism and Postmodernism: Theorizing a Feminist Practice.Sara Ahmed - 1996 - Hypatia 11 (2):71 - 93.
    The model of feminism as humanist in practice and postmodern in theory is inadequate. Feminist practice and theory directly inform each other to displace both humanist and postmodern conceptions of the subject. An examination of feminism's use of rights discourse suggests that feminist practice questions the humanist conception of the subject as a self-identity. Likewise, feminist theory undermines the postmodern emphasis on the constitutive instability and indeterminacy of the subject.
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  17. Willful Subjects.Sara Ahmed - 2014 - Duke University Press.
    In _Willful Subjects_ Sara Ahmed explores willfulness as a charge often made by some against others. One history of will is a history of attempts to eliminate willfulness from the will. Delving into philosophical and literary texts, Ahmed examines the relation between will and willfulness, ill will and good will, and the particular will and general will. Her reflections shed light on how will is embedded in a political and cultural landscape, how it is embodied, and how will (...)
     
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  18. Queer Phenomenology: Orientations, Objects, Others.Sara Ahmed - 2006 - Duke University Press.
    Introduction: find your way -- Orientations toward objects -- Sexual orientation -- The orient and other others -- Conclusion: disorientation and queer objects.
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  19.  12
    On Neat Reducts and Amalgamation.Tarek Sayed-Ahmed - 2007 - Logic Journal of the IGPL 15 (1):33-39.
    We present a property of neat reducts commuting with forming subalgebras as a definability condition.
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  20. The Class of Polyadic Algebras has the Super Amalgamation Property.Tarek Sayed-Ahmed - 2010 - Mathematical Logic Quarterly 56 (1):103-112.
     
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  21.  14
    Omitting Types for Algebraizable Extensions of First Order Logic.Tarek Sayed Ahmed - 2005 - Journal of Applied Non-Classical Logics 15 (4):465-489.
    We prove an Omitting Types Theorem for certain algebraizable extensions of first order logic without equality studied in [SAI 00] and [SAY 04]. This is done by proving a representation theorem preserving given countable sets of infinite meets for certain reducts of ?- dimensional polyadic algebras, the so-called G polyadic algebras (Theorem 5). Here G is a special subsemigroup of (?, ? o) that specifies the signature of the algebras in question. We state and prove an independence result connecting our (...)
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  22.  11
    Amalgamation Theorems in Algebraic Logic, an Overview.Tarek Sayed-Ahmed - 2005 - Logic Journal of the IGPL 13 (3):277-286.
    We review, and in the process unify two techniques , for proving results concerning amalgamation in several classes studied in algebraic logic. The logical counterpart of these results adress interpolation and definability properties in modal and algebraic logic. Presenting them in a functorial context as adjoint situations, we show that both techniques can indeed be seen as instances of the use of the Keisler-Shelah ultrapower Theorem in proving Robinson's Joint Consistency Theorem. Some new results are surveyed. The results of this (...)
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  23.  7
    The Recent Increase in Contraceptive Discontinuation in Egypt.Mona Khalifa, Wafaa Abdelaziz, Soha Metwally & Ehab Sakr - 2020 - Journal of Biosocial Science 52 (1):154-157.
    This study sought to establish whether recent changes in discontinuation of contractive use and switching in Egypt can be considered an important cause of the unexpected increase in overall fertility and slight fall in contraceptive prevalence in the country. The analysis was based on calendar data from the 2008 and 2014 Egyptian DHS. Single/multiple decrement life tables were built to calculate contraceptive discontinuation rates and examine these by reasons for discontinuation focusing on three methods: IUDs, pills and injectables. The unit (...)
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  24.  99
    International Marketing Ethics From an Islamic Perspective: A Value-Maximization Approach. [REVIEW]Mohammad Saeed, Zafar U. Ahmed & Syeda-Masooda Mukhtar - 2001 - Journal of Business Ethics 32 (2):127 - 142.
    International marketing practices, embedded in a strong ethical doctrine, can play a vital role in raising the standards of business conduct worldwide, while in no way compromising the quality of services or products offered to customers, or surrendering the profit margins of businesses. Adherence to such ethical practices can help to elevate the standards of behavior and thus of living, of traders and consumers alike. Against this background, this paper endeavors to identify the salient features of the Islamic framework of (...)
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  25.  13
    Existence and Globally Asymptotic Stability of Equilibrium Solution for Fractional-Order Hybrid BAM Neural Networks with Distributed Delays and Impulses.Hai Zhang, Renyu Ye, Jinde Cao & Ahmed Alsaedi - 2017 - Complexity 2017:1-13.
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  26. Differences That Matter: Feminist Theory and Postmodernism.Sara Ahmed - 1998 - Cambridge University Press.
    Differences That Matter challenges existing ways of theorising the relationship between feminism and postmodernism which ask 'is or should feminism be modern or postmodern?' Sara Ahmed suggests that postmodernism has been allowed to dictate feminist debates and calls instead for feminist theorists to speak (back) to postmodernism, rather than simply speak on (their relationship to) it. Such a 'speaking back' involves a refusal to position postmodernism as a generalisable condition of the world and requires closer readings of what postmodernism (...)
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  27.  30
    On Complete Representations of Reducts of Polyadic Algebras.Tarek Sayed Ahmed - 2008 - Studia Logica 89 (3):325-332.
    Following research initiated by Tarski, Craig and Nemeti, and futher pursued by Sain and others, we show that for certain subsets G of $^\omega \omega $ , atomic countable G poiyadic algebras are completely representable. G polyadic algebras are obtained by restricting the similarity type and axiomatization of ω-dimensional polyadic algebras to finite quantifiers and substitutions in G. This contrasts the cases of cylindric and relation algebras.
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  28. An Atomic Theory with No Prime Models.T. Sayed Ahmed - 2007 - Australasian Journal of Logic 5:85-88.
    We construct an atomic uncountable theory with no prime models. This contrasts with the countable case.
     
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  29.  40
    Mass Mentality, Culture Industry, Fascism.Saladdin Said Ahmed - 2008 - Kritike 2 (1):79-94.
    Some fashionable leftist movements and populist intellectuals habitually blame the sources of information for public ignorance about the miserable state of the world. It could be argued, however, that the masses are ignorant because they prefer ignorance. A mass individual is politically apathetic and intellectually lazy. As a result, even when huge amounts of information are available, which is the case in this epoch, the masses insist on choosing ignorance. It is true that there is not enough information about what (...)
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  30.  59
    Evidence, Decision and Causality.Arif Ahmed - 2014 - Cambridge University Press.
    Most philosophers agree that causal knowledge is essential to decision-making: agents should choose from the available options those that probably cause the outcomes that they want. This book argues against this theory and in favour of evidential or Bayesian decision theory, which emphasises the symptomatic value of options over their causal role. It examines a variety of settings, including economic theory, quantum mechanics and philosophical thought-experiments, where causal knowledge seems to make a practical difference. The arguments make novel use of (...)
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  31.  13
    Exploring Perceptions of Advertising Ethics: An Informant-Derived Approach.Haseeb Ahmed Shabbir, Hala Maalouf, Michele Griessmair, Nazan Colmekcioglu & Pervaiz Akhtar - 2019 - Journal of Business Ethics 159 (3):727-744.
    Whilst considerable research exists on determining consumer responses to pre-determined statements within numerous ad ethics contexts, our understanding of consumer thoughts regarding ad ethics in general remains lacking. The purpose of our study therefore is to provide a first illustration of an emic and informant-based derivation of perceived ad ethics. The authors use multi-dimensional scaling as an approach enabling the emic, or locally derived deconstruction of perceived ad ethics. Given recent calls to develop our understanding of ad ethics in different (...)
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  32. Rethinking Cognitive Enhancement.Ruud ter Meulen, Ahmed Mohamed & Wayne Hall (eds.) - 2017 - Oxford University Press.
    This book critically explores and analyses the scientific and ethical debates surrounding cognitive enhancers. Including contributions from neuroscientists, neuropsychopharmacologists, ethicists, philosophers, public health professionals, and policy researchers, the book offers a multidisciplinary, critical consideration of this topic.
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  33.  3
    Finite Precision Logistic Map Between Computational Efficiency and Accuracy with Encryption Applications.Wafaa S. Sayed, Ahmed G. Radwan, Ahmed A. Rezk & Hossam A. H. Fahmy - 2017 - Complexity 2017:1-21.
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  34.  7
    Out Lag Synchronization of Fractional Order Delayed Complex Networks with Coupling Delay Via Pinning Control.Weiwei Zhang, Jinde Cao, Dingyuan Chen & Ahmed Alsaedi - 2019 - Complexity 2019:1-7.
    This paper discusses the out lag synchronization of fractional order complex networks including both internal delay and coupling delay and with the employment of pinning control scheme. Using comparison theorem and constructing the auxiliary function, several synchronization criterions by linear feedback pinning control are presented. The model and the obtained results in this work are more general than the previous works. Correctness and effectiveness of the theoretical results are validated through numerical simulations.
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  35.  5
    Constructing the Social World: Impaired Capacity for Social Simulation in Dementia.Nikki-Anne Wilson, Rebekah M. Ahmed, John R. Hodges, Olivier Piguet & Muireann Irish - 2020 - Cognition 202:104321.
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  36. Business Students' Perception of Ethics and Moral Judgment: A Cross-Cultural Study. [REVIEW]Mohamed M. Ahmed, Kun Young Chung & John W. Eichenseher - 2003 - Journal of Business Ethics 43 (1-2):89 - 102.
    Business relations rely on shared perceptions of what is acceptable/expected norms of behavior. Immense expansion in transnational business made rudimentary consensus on acceptable business practices across cultural boundaries particularly important. Nonetheless, as more and more nations with different cultural and historical experiences interact in the global economy, the potential for misunderstandings based on different expectations is magnified. Such misunderstandings emerge in a growing literature on "improper" business practices – articulated from a narrow cultural perspective. This paper reports an ongoing research (...)
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  37.  2
    Al-Taftāzānī on the Liar Paradox.David Sanson & Ahmed Alwishah - 2016 - Oxford Studies in Medieval Philosophy 4 (1).
    Al-Taftāzānī introduces the Liar Paradox, in a commentary on al-Rāzī, in a short passage that is part of a polemic against the ethical rationalism of the Muʿtazila. In this essay, we consider his remarks and their place in the history of the Liar Paradox in Arabic Logic. In the passage, al-Taftāzānī introduces Liar Cycles into the tradition, gives the paradox a puzzling name—the fallacy of the “irrational root” —which became standard, and suggests a connection between the paradox and what it (...)
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  38.  12
    Female CEOs and Core Earnings Quality: New Evidence on the Ethics Versus Risk-Aversion Puzzle.Alaa Mansour Zalata, Collins Ntim, Ahmed Aboud & Ernest Gyapong - 2019 - Journal of Business Ethics 160 (2):515-534.
    The question of whether females tend to act more ethically or risk-averse compared to males is an interesting ethical puzzle. Using a large sample of US firms over the 1992–2014 period, we investigate the effect that the gender of a chief executive officer has on earnings management using classification shifting. We find that the pre-Sarbanes–Oxley Act period was characterized by high levels of classification shifting by both female and male CEOs, but the magnitude of such practices is, surprisingly, significantly higher (...)
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  39.  34
    GroupICA Dual Regression Analysis of Resting State Networks in a Behavioral Variant of Frontotemporal Dementia.Riikka Rytty, Juha Nikkinen, Liisa Paavola, Ahmed Abou Elseoud, Virpi Moilanen, Annina Visuri, Osmo Tervonen, Alan E. Renton, Bryan J. Traynor, Vesa Kiviniemi & Anne M. Remes - 2013 - Frontiers in Human Neuroscience 7.
  40.  26
    Global Lagrange Stability of Complex-Valued Neural Networks of Neutral Type with Time-Varying Delays.Zhengwen Tu, Jinde Cao, Ahmed Alsaedi, Fuad E. Alsaadi & Tasawar Hayat - 2016 - Complexity 21 (S2):438-450.
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  41. Dicing with Death.Arif Ahmed - 2014 - Analysis 74 (4):587-592.
    You should rather play hide-and-seek against someone who cannot predict where you hide than against someone who can, as the article illustrates in connection with a high-stakes example. Causal Decision Theory denies this. So Causal Decision Theory is false.
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  42.  7
    Child Nutritional Status in Egypt: A Comprehensive Analysis of Socioeconomic Determinants Using a Quantile Regression Approach.Mesbah Fathy Sharaf, Elhussien Ibrahim Mansour & Ahmed Shoukry Rashad - 2019 - Journal of Biosocial Science 51 (1):1-17.
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  43.  19
    Adaptive Cluster Synchronization in Directed Networks with Nonidentical Nonlinear Dynamics.Yi Wang, Zhongjun Ma, Jinde Cao, Ahmed Alsaedi & Fuad E. Alsaadi - 2016 - Complexity 21 (S2):380-387.
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  44.  91
    Saul Kripke.Arif Ahmed - 2007 - London: Bloomsbury Academic.
    Saul Kripke is one of the most important and original post-war analytic philosophers. His work has undeniably had a profound impact on the philosophy of language and the philosophy of mind. Yet his ideas are amongst the most challenging frequently encountered by students of philosophy. In this informative and accessible book, Arif Ahmed provides a clear and thorough account of Kripke's philosophy, his major works and ideas, providing an ideal guide to the important and complex thought of this key (...)
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  45. Causal Decision Theory: A Counterexample.Arif Ahmed - 2013 - Philosophical Review 122 (2):289-306.
    The essay presents a novel counterexample to Causal Decision Theory (CDT). Its interest is that it generates a case in which CDT violates the very principles that motivated it in the first place. The essay argues that the objection applies to all extant formulations of CDT and that the only way out for that theory is a modification of it that entails incompatibilism. The essay invites the reader to find this consequence of CDT a reason to reject it.
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  46. Hume and the Independent Witnesses.Arif Ahmed - 2015 - Mind 124 (496):1013-1044.
    The Humean argument concerning miracles says that one should always think it more likely that anyone who testifies to a miracle is lying or deluded than that the alleged miracle actually occurred, and so should always reject any single report of it. A longstanding and widely accepted objection is that even if this is right, the concurring and non-collusive testimony of many witnesses should make it rational to believe in whatever miracle they all report. I argue that on the contrary, (...)
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  47. Rationality and Future Discounting.Arif Ahmed - 2018 - Topoi 39 (2):245-256.
    The best justification of time-discounting is roughly that it is rational to care less about your more distant future because there is less of you around to have it. I argue that the standard version of this argument, which treats both psychological continuity and psychological connectedness as reasons to care about your future, can only rationalize an irrational—because exploitable—form of future discounting.
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  48.  66
    Objective Value Is Always Newcombizable.Arif Ahmed & Jack Spencer - forthcoming - Mind:fzz070.
    This paper argues that evidential decision theory is incompatible with options having objective values. If options have objective values, then it should always be rationally permissible for an agent to choose an option if they are certain that the option uniquely maximizes objective value. But, as we show, if options have objective values and evidential decision theory is true, then it is not always rationally permissible for an agent to choose an option if they are certain that the option uniquely (...)
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  49.  43
    Curriculum Guide for Research Ethics Workshops for Countries in the Middle East.Henry Silverman, Babiker Ahmed, Samar Ajeilet, Sumaia Al-fadil, Suhail Al-amad, Hadir El-dessouky, Ibrahim El-gendy, Mohamed El-guindi, Mustafa El-nimeiri, Rana Muzaffar & Azza Saleh - 2010 - Developing World Bioethics 10 (2):70-77.
    To help ensure the ethical conduct of research, many have recommended educational efforts in research ethics to investigators and members of research ethics committees (RECs). One type of education activity involves multi-day workshops in research ethics. To be effective, such workshops should contain the appropriate content and teaching techniques geared towards the learning styles of the targeted audiences. To ensure consistency in content and quality, we describe the development of a curriculum guide, core competencies and associated learning objectives and activities (...)
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  50. Push the Button.Arif Ahmed - 2012 - Philosophy of Science 79 (3):386-395.
    Opponents of Causal Decision Theory (CDT) sometimes claim (i) that it gives the wrong advice in Egan-style cases, where the CDT-endorsed act brings news that it causes a bad outcome; (ii) that CDT gives the right advice in Newcomb cases, where it is known in advance that the CDT-act causes you to be richer than the alternative. This paper argues that (i) and (ii) cannot both be true if rational preference over acts is transitive.
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