Results for ' extinction ratio'

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  1.  15
    The inter-relationship of operant level, extinction ratio, and reserve.Donald H. Bullock - 1950 - Journal of Experimental Psychology 40 (6):802.
  2.  26
    The acquisition and extinction of conditioned eyelid responses as a function of the percentage of fixed-ratio random reinforcement.David A. Grant & Lowell M. Schipper - 1952 - Journal of Experimental Psychology 43 (4):313.
  3.  15
    Resistance to extinction as a function of the discrimination habit established during fixed-ratio reinforcement.M. Ray Denny, Ruth H. Wells & Jack L. Maatsch - 1957 - Journal of Experimental Psychology 54 (6):451.
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  4.  26
    Resistance to extinction as a function of the fixed ratio.John J. Boren - 1961 - Journal of Experimental Psychology 61 (4):304.
  5.  9
    The effects of a novel stimulus change on responding in extinction following fixed-ratio training.Larry A. Alferink & Edward K. Crossman - 1977 - Bulletin of the Psychonomic Society 9 (5):340-342.
  6.  7
    Complex Dynamics of a Stochastic Two-Patch Predator-Prey Population Model with Ratio-Dependent Functional Responses.Rong Liu & Guirong Liu - 2021 - Complexity 2021:1-31.
    This paper investigates a stochastic two-patch predator-prey model with ratio-dependent functional responses. First, the existence of a unique global positive solution is proved via the stochastic comparison theorem. Then, two different methods are used to discuss the long-time properties of the solutions pathwise. Next, sufficient conditions for extinction and persistence in mean are obtained. Moreover, stochastic persistence of the model is discussed. Furthermore, sufficient conditions for the existence of an ergodic stationary distribution are derived by a suitable Lyapunov (...)
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  7.  18
    Temperature‐Dependent Sex Determination in Sea Turtles in the Context of Climate Change: Uncovering the Adaptive Significance.Pilar Santidrián Tomillo & James R. Spotila - 2020 - Bioessays 42 (11):2000146.
    The adaptive significance of temperature‐dependent sex determination (TSD) in reptiles remains unknown decades after TSD was first identified in this group. Concurrently, there is growing concern about the effect that rising temperatures may have on species with TSD, potentially producing extremely biased sex ratios or offspring of only one sex. The current state‐of the‐art in TSD research on sea turtles is reviewed here and, against current paradigm, it is proposed that TSD provides an advantage under warming climates. By means of (...)
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  8.  97
    Non-Self, Agency, and Women: Buddhism’s Modern Transformation.Ann A. Pang-White - 2016 - In The Bloomsbury Research Handbook of Chinese Philosophy and Gender (London, UK: Bloomsbury Academic). pp. 331-356.
    In “Non-self, Agency, and Women: Buddhism’s Modern Transformation,” Ann A. Pang-White argues that “non-self (anātman 無我)” and “emptiness (śūnyatā 空)” necessarily entail nonduality. Buddha nature is neither male nor female. Nonetheless, conflicting teachings are found in various Theravada and Mahayana texts. The more conservative texts have historically resulted in long-standing patriarchal practices: Buddhist nuns receive much less respect and financial support than monks, often facing the possibility of extinction. In Taiwan, however, in a complete reversal, Buddhist nuns outnumber male (...)
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  9.  12
    Science as a way of knowing: the foundations of modern biology.John Alexander Moore - 1993 - Cambridge: Harvard University Press.
    Introduction A Brief Conceptual Framework for Biology PART ONE: UNDERSTANDING NATURE 1. The Antecedents of Scientific Thought Animism, Totemism, and Shamanism The Paleolithic View Mesopotamia Egypt 2. Aristotle and the Greek View of Nature The Science of Animal Biology The Parts of Animals The Classification of Animals The Aristotelian System Basic Questions 3. Those Rational Greeks? Theophrastus and the Science of Botany The Roman Pliny Hippocrates, the Father of Medicine Erasistratus Galen of Pergamum The Greek Miracle 4. The Judeo-Christian Worldview (...)
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  10.  5
    A study of Babylonian planetary theory III. The planet Mercury.Teije de Jong - 2021 - Archive for History of Exact Sciences 75 (5):491-522.
    In this series of papers I attempt to provide an answer to the question how the Babylonian scholars arrived at their mathematical theory of planetary motion. Papers I and II were devoted to system A theory of the outer planets and of the planet Venus. In this third and last paper I will study system A theory of the planet Mercury. Our knowledge of the Babylonian theory of Mercury is at present based on twelveEphemeridesand sevenProcedure Texts. Three computational systems of (...)
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  11.  24
    Conceptual Articulations and the Growth of African Languages.Osita Nnajiofor & Maduka Enyimba - 2024 - Philosophy Today 68 (1):167-181.
    We argue in this paper that unveiling of concepts is a viable means of promoting the growth of African languages in contemporary African studies. We show that African languages face serious threat of extinction due to neglect from their users and undue influence of colonial languages. We contend that the ratio of indigenous languages used as official languages compared to colonial languages is poor and despicable. The growth of African languages has been stunted due to the multilingual nature (...)
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  12.  22
    Rule‐consequentialism, procreative freedom, and future generations.Julia Mosquera - 2022 - Ratio 35 (4):333-343.
    In this paper I analyse how procreative freedom poses a challenge for rule-consequentialism. First, I reconstruct the rule-consequentialist case for procreative freedom. Second, I argue that population scenarios resulting from very low fertility pose a problem for rule-consequentialism since such scenarios cannot secure population growth or even avoid human extinction in the long run. Third, I argue that population scenarios resulting from excessive procreation also pose a problem for rule-consequentialism since they are incompatible with the promotion of optimific consequences (...)
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  13.  45
    From Brad to worse: Rule‐consequentialism and undesirable futures.Tim Mulgan - 2022 - Ratio 35 (4):275-288.
    This paper asks how rule‐consequentialism might adapt to very adverse futures, and whether moderate liberal consequentialism can survive into broken futures and/or futures where humanity faces imminent extinction. The paper first recaps the recent history of rule‐consequentialist procreative ethics. It outlines rule‐consequentialism, extends it to cover future people, and applies it to broken futures. The paper then introduces a new thought experiment—the “ending world”—where humanity faces an extinction that is unavoidable and imminent, but not immediate. The paper concludes (...)
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  14. Erratumraju_477 109.Ratio Juris - 2011 - Ratio Juris 24 (1):109.
     
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  15. Prima distinctio.I. Quid Dicendum Sit Et Qualiter, Ii Pretitulationes Uiginti Octo Significationum, Iii Deaptitudine Trinitatis Et Tryadis, Iv Triplex Ratio Secundum Mathesim Cur, Numero Theologia Declarauit Deum, V. Ostensio Triplex Secundum Mathesim Cur, Ternario Designata Est Deitas, Vi Designatio Triformis Secundum Logicam Cur, Relatione Declarata Est Deitas & Viictcur Relatione - 1999 - Cahiers de l'Institut du Moyen-Âge Grec Et Latin 69:253.
  16.  30
    Sodium amobarbital, the hippocampal theta rhythm, and the partial reinforcement extinction effect.Jeffrey A. Gray - 1970 - Psychological Review 77 (5):465-480.
  17. Genetic enhancement, human extinction, and the best interests of posthumanity.Jon Rueda - 2022 - Bioethics (6):529-538.
    The cumulative impact of enhancement technologies may alter the human species in the very long-term future. In this article, I will start showing how radical genetic enhancements may accelerate the conversion into a novel species. I will also clarify the concepts of ‘biological species’, ‘transhuman’ and ‘posthuman’. Then, I will summarize some ethical arguments for creating a transhuman or posthuman species with a substantially higher level of well-being than the human one. In particular, I will present what I shall call (...)
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  18.  14
    A Systematic Review on the Effect of Transcranial Direct Current and Magnetic Stimulation on Fear Memory and Extinction.Vuk Marković, Carmelo M. Vicario, Fatemeh Yavari, Mohammad A. Salehinejad & Michael A. Nitsche - 2021 - Frontiers in Human Neuroscience 15.
    Anxiety disorders are among the most prevalent mental disorders. Present treatments such as cognitive behavior therapy and pharmacological treatments show only moderate success, which emphasizes the importance for the development of new treatment protocols. Non-invasive brain stimulation methods such as repetitive transcranial magnetic stimulation and transcranial direct current stimulation have been probed as therapeutic option for anxiety disorders in recent years. Mechanistic information about their mode of action, and most efficient protocols is however limited. Here the fear extinction model (...)
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  19. Extinction Risks from AI: Invisible to Science?Vojtech Kovarik, Christiaan van Merwijk & Ida Mattsson - manuscript
    In an effort to inform the discussion surrounding existential risks from AI, we formulate Extinction-level Goodhart’s Law as “Virtually any goal specification, pursued to the extreme, will result in the extinction of humanity”, and we aim to understand which formal models are suitable for investigating this hypothesis. Note that we remain agnostic as to whether Extinction-level Goodhart’s Law holds or not. As our key contribution, we identify a set of conditions that are necessary for a model that (...)
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  20. Perceptual awareness and its loss in unilateral neglect and extinction.John Driver & Patrik Vuilleumier - 2001 - Cognition 79 (1):39-88.
  21.  15
    The End of the World: The Science and Ethics of Human Extinction.John Leslie - 1996 - Philosophy 72 (279):158-160.
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  22.  37
    Extinction and descent.Peter T. Ellison - 1994 - Human Nature 5 (2):155-165.
    The probability of lineal extinction is sensitive to all the moments of the reproductive success probability distribution. In particular, high variance in reproductive success is associated with high probability of lineal extinction. Where male variance in reproductive success exceeds female variance, strictly patrilineal lines of descent will become extinct more rapidly than strictly matrilineal lines of descent. Patrilineal genealogies will be expected to be shallower and broader than matrilineal genealogies under such conditions. Potential implications of this genealogical asymmetry (...)
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  23.  21
    An activist's argument that participant values should guide risk–benefit ratio calculations in HIV cure research.David Evans - 2017 - Journal of Medical Ethics 43 (2):100-103.
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  24.  77
    Should Extinction Be Forever?Karim Jebari - 2016 - Philosophy and Technology 29 (3):211-222.
    This article will explore a problem which is related to our moral obligations towards species. Although the re-creation of extinct animals has been discussed to some degree both in lay deliberations as well as by scientists, advocates tend to emphasize the technological and scientific value of such an endeavour, and the “coolness” factor, 32–33, 2013). This article will provide an argument in favour of re-creation based on normative considerations. The environmentalist community generally accepts that it is wrong to exterminate species, (...)
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  25.  44
    Catastrophe, Social Collapse, and Human Extinction.Robin Hanson - unknown
    Humans have slowly built more productive societies by slowly acquiring various kinds of capital, and by carefully matching them to each other. Because disruptions can disturb this careful matching, and discourage social coordination, large disruptions can cause a “social collapse,” i.e., a reduction in productivity out of proportion to the disruption. For many types of disasters, severity seems to follow a power law distribution. For some of types, such as wars and earthquakes, most of the expected harm is predicted to (...)
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  26.  16
    Scientific discovery and technological innovation: ulcers, dinosaur extinction, and the programming language java.Paul Thagard & David Croft - 1999 - In L. Magnani, N. J. Nersessian & P. Thagard (eds.), Model-Based Reasoning in Scientific Discovery. Kluwer/Plenum. pp. 125--137.
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  27.  96
    Anthropic shadow: observation selection effects and human extinction risks.Milan M. Ćirković, Anders Sandberg & Nick Bostrom - unknown
    We describe a significant practical consequence of taking anthropic biases into account in deriving predictions for rare stochastic catastrophic events. The risks associated with catastrophes such as asteroidal/cometary impacts, supervolcanic episodes, and explosions of supernovae/gamma-ray bursts are based on their observed frequencies. As a result, the frequencies of catastrophes that destroy or are otherwise incompatible with the existence of observers are systematically underestimated. We describe the consequences of the anthropic bias for estimation of catastrophic risks, and suggest some directions for (...)
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  28.  40
    Extinct and Alive: Towards A Broader Account of Loss.Christopher J. Preston - 2021 - Philosophia 50 (5):2221-2234.
    Extinction is usually associated with the death of the last remaining individual of a species, taxon, or population of organisms. Here I ask the question of whether extinction might also be applied to cases where individuals of the relevant category remain alive. Global impacts in the Anthropocene suggest extinction may be broader than typically thought. Technologies available in the emerging ‘synthetic age’ alter taxa in ways that may appropriately be characterized as extinction. The core of the (...)
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  29.  81
    Considering De-Extinction: Zombie Arguments and the Walking (And Flying and Swimming) Dead.Eric Katz - 2022 - Ethics, Policy and Environment 25 (2):81-103.
    De-extinction raises anew ontological and epistemological problems that have engaged environmental philosophers for decades. This essay re-examines these issues to provide a fuller understanding—and a critique—of de-extinction. One of my claims is that de-extinction as a philosophical problem merely recycles old issues and debates in the field (hence, “zombie” arguments). De-extinction is a project that arises out of the assertion of human domination of the natural world. Thus the acceptance of de-extinction as an environmental policy (...)
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  30.  12
    Comparison of different populations: Resistance to extinction and transfer.Norman H. Anderson - 1963 - Psychological Review 70 (2):162-179.
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  31.  12
    Signals for threat modulate attentional capture and holding: Fear-conditioning and extinction during the exogenous cueing task.Ernst Koster, Geert Crombez, Stefaan Van Damme, Bruno Verschuere & Jan De Houwer - 2005 - Cognition and Emotion 19 (5):771-780.
  32.  27
    Electrophysiological correlates of conscious vision: Evidence from unilateral extinction.C. Marzi, M. Girelli, Carlo Miniussi, N. Smania & Angelo Maravita - 2000 - Journal of Cognitive Neuroscience 12 (5):869-877.
  33. Human extinction and the value of our efforts.Brooke Alan Trisel - 2004 - Philosophical Forum 35 (3):371–391.
    Some people feel distressed reflecting on human extinction. Some people even claim that our efforts and lives would be empty and pointless if humanity becomes extinct, even if this will not occur for millions of years. In this essay, I will attempt to demonstrate that this claim is false. The desire for long-lastingness or quasi-immortality is often unwittingly adopted as a standard for judging whether our efforts are significant. If we accomplish our goals and then later in life conclude (...)
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  34.  13
    Distinguishing Extinction and Natural Selection in the Anthropocene: Preventing the Panda Paradox through Practical Education Measures.Yael Wyner & Rob DeSalle - 2020 - Bioessays 42 (2):1900206.
    In the midst of only the 6th mass extinction in the Earth's history, we must rethink how we teach evolution to prevent natural selection from being incorrectly used as a biological justification for inaction in the face of today's human‐caused mass extinction crisis. Pundits, policy makers, and the general public regularly identify the extinction of endangered species as natural selection at work, rather than attributing modern‐day extinction to the sudden catastrophic bad luck of human caused environmental (...)
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  35.  22
    Othering Processes and STS Curricula: From Nineteenth Century Scientific Discourse on Interracial Competition and Racial Extinction to Othering in Biomedical Technosciences.Juan Manuel Sánchez Arteaga & Charbel N. El-Hani - 2012 - Science & Education 21 (5):607-629.
  36. Human Extinction from a Thomist Perspective.Stefan Riedener - 2021 - In Stefan Riedener, Dominic Roser & Markus Huppenbauer (eds.), Effective Altruism and Religion: Synergies, Tensions, Dialogue. Baden-Baden, Germany: Nomos. pp. 187-210.
    “Existential risks” are risks that threaten the destruction of humanity’s long-term potential: risks of nuclear wars, pandemics, supervolcano eruptions, and so on. On standard utilitarianism, it seems, the reduction of such risks should be a key global priority today. Many effective altruists agree with this verdict. But how should the importance of these risks be assessed on a Christian moral theory? In this paper, I begin to answer this question – taking Thomas Aquinas as a reference, and the risks of (...)
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  37.  66
    Mass extinctions as major transitions.Adrian Currie - 2019 - Biology and Philosophy 34 (2):29.
    Both paleobiology and investigations of ‘major evolutionary transitions’ are intimately concerned with the macroevolutionary shape of life. It is surprising, then, how little studies of major transitions are informed by paleontological perspectives and. I argue that this disconnect is partially justified because paleobiological investigation is typically ‘phenomena-led’, while investigations of major transitions are ‘theory-led’. The distinction turns on evidential relevance: in the former case, evidence is relevant in virtue of its relationship to some phenomena or hypotheses concerning those phenomena; in (...)
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  38.  88
    Resurrecting Extinct Species: Ethics and Authenticity.Douglas Ian Campbell & Patrick Michael Whittle - 2017 - London, UK: Palgrave Macmillan. Edited by Patrick Michael Whittle.
    This book is about the philosophy of de-extinction. -/- CHAPTER 1 introduces the two main philosophical questions that are raised by the prospect of extinct species being brought back from the dead—namely, the ‘Authenticity Question’ and the ‘Ethical Question’. It distinguishes the many different types and methods of de-extinction. Finally, it examines the aims of wildlife conservation with a view to whether they are compatible with de-extinction, or not. -/- CHAPTER 2 examines three prime candidates for de- (...)—namely, the aurochs, the woolly mammoth, and the passenger pigeon. It is about what these animals were like, why people want to resurrect them, and the methods by which their resurrections could be accomplished. -/- CHAPTER 3 is about the authenticity of de-extinct animals. Critics of de-extinction have offered many reasons for thinking that the products of de-extinction will be inauthentic. The bulk of the chapter is taken up with surveying their arguments. We attempt to show that none are convincing, and end the chapter by offering and defending two arguments in favour of the view that authentic de-extinctions are possible. -/- CHAPTER 4 surveys and critically evaluates all the main arguments both for and against de-extinction. It presents a qualified defence of the claim that conservationists should embrace de-extinction. It ends with a list of do’s and don’ts for conservationist de-extinction projects. (shrink)
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  39.  15
    Effects of percent relief and number of N-R transitions on extinction in relief conditioning.W. J. Millard, Alois J. Johnston & Paul J. Woods - 1978 - Bulletin of the Psychonomic Society 11 (5):288-290.
  40. Political science and the culture of extinction.Dorothea Olkowski - 2009 - In Bernd Herzogenrath (ed.), Deleuze/Guattari & Ecology. Palgrave-Macmillan. pp. 145--165.
  41.  30
    Are Benner's expert nurses near extinction?Kimberley Bowen & Dawn Prentice - 2016 - Nursing Philosophy 17 (2):144-148.
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  42.  39
    Philosophical perspectives on the mass extinction debates?Todd A. Grantham - 1999 - Biology and Philosophy 14 (1):143-150.
  43.  28
    Human Extinction and AI: What We Can Learn from the Ultimate Threat.Andrea Lavazza & Murilo Vilaça - 2024 - Philosophy and Technology 37 (1):1-21.
    Human extinction is something generally deemed as undesirable, although some scholars view it as a potential solution to the problems of the Earth since it would reduce the moral evil and the suffering that are brought about by humans. We contend that humans collectively have absolute intrinsic value as sentient, conscious and rational entities, and we should preserve them from extinction. However, severe threats, such as climate change and incurable viruses, might push humanity to the brink of (...). Should that occur, it might be useful to envision a successor to humans able to preserve and hand down its value. One option would be to resort to humanoid robots that reproduce our salient characteristics by imitation, thanks to AI powered by machine learning. However, the question would arise of how to select the characteristics needed for our successors to thrive. This could prove to be particularly challenging. A way out might come from an algorithm entrusted with this choice. In fact, an algorithmic selection both at the social and at the individual level could be a preferred choice than other traditional ways of making decisions. In this sense, reflecting on human extinction helps us to identify solutions that are also suitable for the problems we face today. (shrink)
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  44.  11
    Effects of magnitude of reward and intensity of intermittent punishment on resistance to extinction.Nabil F. Haddad & Roger L. Mellgren - 1976 - Bulletin of the Psychonomic Society 7 (5):449-451.
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  45.  17
    Blocking and partial reinforcement: Effects of N-R transitions early vs. late in training on resistance to extinction.Steven J. Haggbloom - 1983 - Bulletin of the Psychonomic Society 21 (2):153-156.
  46.  6
    Behavioral disruption versus signal-generated memory retrieval as determinants of the signal-generated partial reinforcement extinction effect.Steven J. Haggbloom & Vickie R. Brewer - 1989 - Bulletin of the Psychonomic Society 27 (2):99-102.
  47.  20
    Latent stimulus control develops in extinction after very brief feature-negative, but not feature-positive, discrimination training in the runway.Steven J. Haggbloom - 1990 - Bulletin of the Psychonomic Society 28 (1):74-76.
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  48. Signal-generated memory of reinforcement and resistance to extinction.Sj Haggbloom, L. Lovelace & Vr Brewer - 1988 - Bulletin of the Psychonomic Society 26 (6):526-527.
  49.  38
    Is evaluative conditioning really resistant to extinction? Evidence for changes in evaluative judgements without changes in evaluative representations.Bertram Gawronski, Anne Gast & Jan De Houwer - 2015 - Cognition and Emotion 29 (5):816-830.
  50.  28
    In a World Characterized by Transience and Doomed to Extinction Some Old Women Still Need Love —Mrs Rooney from Samuel Beckett’s All That Fall.Jadwiga Uchman - 2013 - Text Matters - a Journal of Literature, Theory and Culture 3 (3):105-120.
    The article analyzes the world of transience, deterioration and death characteristic of Boghill, the place of action of Samuel Beckett’s short radio play-All That Fall. In a broadcast drama, existence is equivalent to being heard, the idea skilfully employed and commented upon by the playwright. The characters actually heard in the play are in most cases elderly or quite old and even the two young ones appear in the context of death. Numerous off-the-air individuals are dead, sterile or suffering from (...)
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