Results for 'Chemical models'

1000+ found
Order:
  1. The Chemical Senses.Barry C. Smith - 2015 - In Mohan Matthen (ed.), The Oxford Handbook to Philosophy of Perception. New York, NY, USA: pp. 314-353.
    Long-standing neglect of the chemical senses in the philosophy of perception is due, mostly, to their being regarded as ‘lower’ senses. Smell, taste, and chemically irritated touch are thought to produce mere bodily sensations. However, empirically informed theories of perception can show how these senses lead to perception of objective properties, and why they cannot be treated as special cases of perception modelled on vision. The senses of taste, touch, and smell also combine to create unified perceptions of flavour. (...)
    Download  
     
    Export citation  
     
    Bookmark   24 citations  
  2. Models as make-believe: imagination, fiction, and scientific representation.Adam Toon - 2012 - New York: Palgrave-Macmillan.
    Models as Make-Believe offers a new approach to scientific modelling by looking to an unlikely source of inspiration: the dolls and toy trucks of children's games of make-believe.
    Download  
     
    Export citation  
     
    Bookmark   59 citations  
  3. Emergence, Supervenience, and Introductory Chemical Education.Micah Newman - 2013 - Science & Education 22 (7):1655-1667.
    In learning chemistry at the entry level, many learners labor under misconceptions about the subject matter that are so fundamental that they are typically never addressed. A fundamental misconception in chemistry appears to arise from an adding of existing phenomenal concepts to newly-acquired chemical concepts, so that beginning learners think of chemical entities as themselves having the very same ‘macro’ properties that we observe through the senses. Those who teach or practice chemistry never acquire these misconceptions because they (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  4. Model Organisms for Studying Decision-Making: A Phylogenetically Expanded Perspective.Linus Ta-Lun Huang, Leonardo Bich & William Bechtel - 2021 - Philosophy of Science 88 (5):1055-1066.
    This article explores the use of model organisms in studying the cognitive phenomenon of decision-making. Drawing on the framework of biological control to develop a skeletal conception of decision-making, we show that two core features of decision-making mechanisms can be identified by studying model organisms, such as E. coli, jellyfish, C. elegans, lamprey, and so on. First, decision mechanisms are distributed and heterarchically structured. Second, they depend heavily on chemical information processing, such as that involving neuromodulators. We end by (...)
    Download  
     
    Export citation  
     
    Bookmark  
  5. Large Language Models and Biorisk.William D’Alessandro, Harry R. Lloyd & Nathaniel Sharadin - 2023 - American Journal of Bioethics 23 (10):115-118.
    We discuss potential biorisks from large language models (LLMs). AI assistants based on LLMs such as ChatGPT have been shown to significantly reduce barriers to entry for actors wishing to synthesize dangerous, potentially novel pathogens and chemical weapons. The harms from deploying such bioagents could be further magnified by AI-assisted misinformation. We endorse several policy responses to these dangers, including prerelease evaluations of biomedical AIs by subject-matter experts, enhanced surveillance and lab screening procedures, restrictions on AI training data, (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  6. Symmetry and Symmetry Breaking in the Periodic Table: Towards a Group-Theoretical Classification of the Chemical Elements.Pieter Thyssen - 2013 - Dissertation, Ku Leuven
    At the heart of chemistry lies the periodic system of chemical elements. Despite being the cornerstone of modern chemistry, the overall structure of the periodic system has never been fully understood from an atomic physics point of view. Group-theoretical models have been proposed instead, but they suffer from several limitations. Among others, the identification of the correct symmetry group and its decomposition into subgroups has remained a problem to this day. In an effort to deepen our limited understanding (...)
    Download  
     
    Export citation  
     
    Bookmark  
  7. Meta-Incommensurability between Theories of Meaning: Chemical Evidence.Nicholas W. Best - 2015 - Perspectives on Science 23 (3):361-378.
    Attempting to compare scientific theories requires a philosophical model of meaning. Yet different scientific theories have at times—particularly in early chemistry—pre-supposed disparate theories of meaning. When two theories of meaning are incommensurable, we must say that the scientific theories that rely upon them are meta-incommensurable. Meta- incommensurability is a more profound sceptical threat to science since, unlike first-order incommensurability, it implies complete incomparability.
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  8. Problem of the Direct Quantum-Information Transformation of Chemical Substance.Vasil Penchev - 2020 - Computational and Theoretical Chemistry eJournal (Elsevier: SSRN) 3 (26):1-15.
    Arthur Clark and Michael Kube–McDowell (“The Triger”, 2000) suggested the sci-fi idea about the direct transformation from a chemical substance to another by the action of a newly physical, “Trigger” field. Karl Brohier, a Nobel Prize winner, who is a dramatic persona in the novel, elaborates a new theory, re-reading and re-writing Pauling’s “The Nature of the Chemical Bond”; according to Brohier: “Information organizes and differentiates energy. It regularizes and stabilizes matter. Information propagates through matter-energy and mediates the (...)
    Download  
     
    Export citation  
     
    Bookmark  
  9. An Information Processing Model of Psychopathy.Jeffrey White - 2012 - In Angelo S. Fruili & Luisa D. Veneto (eds.), Moral Psychology. Nova. pp. 1-34.
    Psychopathy is increasingly in the public eye. However, it is yet to be fully and effectively understood. Within the context of the DSM-IV, for example, it is best regarded as a complex family of disorders. The upside is that this family can be tightly related along common dimensions. Characteristic marks of psychopaths include a lack of guilt and remorse for paradigm case immoral actions, leading to the common conception of psychopathy rooted in affective dysfunctions. An adequate portrait of psychopathy is (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  10. A New ‘Idea of Nature’ for Chemical Education.Joseph E. Earley - 2013 - Science & Education 22 (7):1775-1786.
    This paper recommends that chemistry educators shift to a different ‘idea of nature’, an alternative ‘worldview.’ Much of contemporary science and technology deals in one way or another with dynamic coherences that display novel and important properties. The notion of how the world works that such studies and practices generate (and require) is quite different from the earlier concepts that are now integrated into science education. Eventual success in meeting contemporary technological and social challenges requires general diffusion of an overall (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  11. A Failed Encounter in Mathematics and Chemistry: The Folded Models of van ‘t Hoff and Sachse.Michael Friedman - 2016 - Teorie Vědy / Theory of Science 38 (3):359-386.
    Three-dimensional material models of molecules were used throughout the 19th century, either functioning as a mere representation or opening new epistemic horizons. In this paper, two case studies are examined: the 1875 models of van ‘t Hoff and the 1890 models of Sachse. What is unique in these two case studies is that both models were not only folded, but were also conceptualized mathematically. When viewed in light of the chemical research of that period not (...)
    Download  
     
    Export citation  
     
    Bookmark  
  12. What Is Life: An Informational Model of the Living Structures.Florin Gaiseanu - 2020 - Biochemistry and Molecular Biology 5 (2):18-28.
    Schröedinger’s question “what is life?” was a real challenge for the scientific community and this still remains as an opened question, because in spite of the important advances in various scientific branches like philosophy, biology, chemistry and physics,, each of them assesses life from its particular point of view to explain the life’ characteristic features, so not a coherent and well structured general model of life was reported. In this paper life is approached from informational perspective, starting from earlier Draganeacu's (...)
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  13. Reducing Chemistry to Physics: Limits, Models, Consequences.Hinne Hettema - 2012 - Createspace.
    Chemistry and physics are two sciences that are hard to connect. Yet there is significant overlap in their aims, methods, and theoretical approaches. In this book, the reduction of chemistry to physics is defended from the viewpoint of a naturalised Nagelian reduction, which is based on a close reading of Nagel's original text. This naturalised notion of reduction is capable of characterising the inter-theory relationships between theories of chemistry and theories of physics. The reconsideration of reduction also leads to a (...)
    Download  
     
    Export citation  
     
    Bookmark   25 citations  
  14. United Humanity: from "UN 2.0" to "UN 3.0" The conceptual model of the United Nations for the XXI century.Vladimir Rogozhin - 2018 - Academia.
    The conceptual model of United Nations reform - "UN 3.0" includes the General Program of Action on UN Reform, consisting of two stages. The first stage for 2020-2025 envisages the transformation of the main organs of the UN - the General Assembly and the Security Council with measures to improve the effectiveness of the management system, address the "veto problem", problem of financing, improve staff work and administrative and financial control, strengthen UN media, improvement of work with the global civil (...)
    Download  
     
    Export citation  
     
    Bookmark  
  15. Central nervous system activity of the methanol extracts of Helianthus annuus seeds in mice model.Tanjimul Islam & Rubab Tarannum Islam - 2016 - International Current Pharmaceutical Journal 5 (1):1-4.
    Helianthus annuus seeds contain various chemical components and evaluate different biological activities. The present study was carried out to investigate the central nervous system (CNS) activity of methanolic extract of Helianthus annuus seeds in mice model. General behaviour, antidepressant activity and anxiolytic activity was observed. The results revealed that the methanol extract of Helianthus annuus seeds at 100 and 200 mg/kg caused a significant increase in the spontaneous activity (general behavioural profile), moderate increase in anxiolytic activity (light-dark box and (...)
    Download  
     
    Export citation  
     
    Bookmark  
  16. Coherence and correspondence in the network dynamics of belief suites.Patrick Grim, Andrew Modell, Nicholas Breslin, Jasmine Mcnenny, Irina Mondescu, Kyle Finnegan, Robert Olsen, Chanyu An & Alexander Fedder - 2017 - Episteme 14 (2):233-253.
    Coherence and correspondence are classical contenders as theories of truth. In this paper we examine them instead as interacting factors in the dynamics of belief across epistemic networks. We construct an agent-based model of network contact in which agents are characterized not in terms of single beliefs but in terms of internal belief suites. Individuals update elements of their belief suites on input from other agents in order both to maximize internal belief coherence and to incorporate ‘trickled in’ elements of (...)
    Download  
     
    Export citation  
     
    Bookmark  
  17. The toys of organic chemistry: Material manipulatives and inductive reasoning.Kate McKinney Maddalena - 2013 - Teorie Vědy / Theory of Science 35 (2):227-248.
    Chemical visualizations and models are special kinds of situated, inductive arguments. In this paper, I examine several historical case studies—an archive of images from museums, special collections, and popular magazines—as examples of emergent practices of physical modeling as theoretical play which became the basis for molecular biology and structural chemistry. Specifically, I trace a legacy of visualization tools that starts with Archibald Scott Cooper and Friedrich Kekulé in the late 1800s, crystallizes as material manipulatives in Kekulé’s student Jacobus (...)
    Download  
     
    Export citation  
     
    Bookmark  
  18. Lavoisier’s "Reflections on phlogiston" I: against phlogiston theory.Nicholas W. Best - 2015 - Foundations of Chemistry 17 (2):137-151.
    This seminal paper, which marks a turning point of the chemical revolution, is presented for the first time in a complete English translation. In this first half Lavoisier undermines phlogiston chemistry by arguing that his French contemporaries had replaced Stahl’s original theory with radically different systems that conceptualised the phlogiston principle in completely incompatible ways. He refutes their claims by showing that these later models were riddled with inconsistencies as to phlogiston’s weight, its ability to penetrate glass and (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  19. The infrasonics and electronics of bionics.Varanasi Ramabrahmam - 2009 - In Proceedings of Presentations at International Conference on Photonics, Nano-Technology and Computer Applications (ICOPNAC- 2009), 25-28 February 2009 Held at Center for Research and Development, PRIST UNIVERSITY,. pp. 20-39.
    The concepts developed using Upanishadic insight regarding human consciousness, mind and mental processes and their applications in information acquisition and transmission by, through and in human body will be used to model human cognitive processes. A sequential reversible process by the stepwise transformation of (i) infrasonic form of energy and transformation of information already stored in (ii) biochemical form within as memory, and retrieved as inner mental world into (iii) electrochemical and then into (iv) mechanical form while communicating and the (...)
    Download  
     
    Export citation  
     
    Bookmark  
  20. Comparing Artificial Neural Networks with Multiple Linear Regression for Forecasting Heavy Metal Content.Rachid El Chaal & Moulay Othman Aboutafail - 2022 - Acadlore Transactions on Geosciences 1 (1):2-11.
    This paper adopts two modeling tools, namely, multiple linear regression (MLR) and artificial neural networks (ANNs), to predict the concentrations of heavy metals (zinc, boron, and manganese) in surface waters of the Oued Inaouen watershed flowing towards Inaouen, using a set of physical-chemical parameters. XLStat was employed to perform multiple linear and nonlinear regressions, and Statista 10 was chosen to construct neural networks for modeling and prediction. The effectiveness of the ANN- and MLR-based stochastic models was assessed by (...)
    Download  
     
    Export citation  
     
    Bookmark  
  21. The Humanistic Paradigm and Bio-Psyhco-Social Approach as a Basis of Social Support for People with Mental Health Problems.Nataliia Bondarenko - 2018 - Psychology and Psychosocial Interventions 1:8-14.
    The article discusses the actual problem of social support for people with mental health problems, which has an important place in the study field of social psychology and social work.The article also deals with the definition of the concept of “mental health”, the problem of introducing the term “mental health problems” as a way to avoid stigmatization, and the spread of a humanistic attitude to persons with a psychiatric diagnosis. It also discussed modern theoretical approaches that offer an understanding of (...)
    Download  
     
    Export citation  
     
    Bookmark  
  22. Is Science Neurotic?Nicholas Maxwell - 2004 - London: World Scientific.
    In this book I show that science suffers from a damaging but rarely noticed methodological disease, which I call rationalistic neurosis. It is not just the natural sciences which suffer from this condition. The contagion has spread to the social sciences, to philosophy, to the humanities more generally, and to education. The whole academic enterprise, indeed, suffers from versions of the disease. It has extraordinarily damaging long-term consequences. For it has the effect of preventing us from developing traditions and institutions (...)
    Download  
     
    Export citation  
     
    Bookmark  
  23. Neural Network-Based Water Quality Prediction.Mohammed Ashraf Al-Madhoun & Samy S. Abu-Naser - 2023 - International Journal of Academic Information Systems Research (IJAISR) 7 (9):25-31.
    Water quality assessment is critical for environmental sustainability and public health. This research employs neural networks to predict water quality, utilizing a dataset of 21 diverse features, including metals, chemicals, and biological indicators. With 8000 samples, our neural network model, consisting of four layers, achieved an impressive 94.22% accuracy with an average error of 0.031. Feature importance analysis revealed arsenic, perchlorate, cadmium, and others as pivotal factors in water quality prediction. This study offers a valuable contribution to enhancing water quality (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  24. Cosmological Tests of Gravity.Nicolae Sfetcu - manuscript
    The current cosmological models are built based on general relativity. The solutions of the specific equations, Friedmann-Lemaître-Robertson-Walker, allow to model the evolution of the universe starting from the Big Bang. Some of the parameters of the universe have been established by observations. Based on these, and other observational data, the models can be tested. Predictions include the initial abundance of chemical elements formed in a period of nucleosynthesis during the Big Bang period, the subsequent structure of the (...)
    Download  
     
    Export citation  
     
    Bookmark  
  25. Solution to the Mind-Body Relation Problem: Information.Florin Gaiseanu - 2021 - Philosophy Study 11 (1):42-55.
    In this paper it is analyzed from the informational perspective the relation between mind and body, an ancient philosophic issue defined as a problem, which still did not receive up to date an adequate solution. By introducing/using the concept of information, it is shown that this concept includes two facets, one of them referring to the common communications and another one referring to a hidden/structuring matter-related information, effectively acting in the human body and in the living systems, which determines the (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  26. Olfactory Objects.Clare Batty - 2014 - In S. Biggs, D. Stokes & M. Matthen (eds.), Perception and Its Modalities. Oxford University Press. pp. 222-245.
    Much of the philosophical work on perception has focused on vision. Recently, however, philosophers have begun to correct this ‘tunnel vision’ by considering other modalities. Nevertheless, relatively little has been written about the chemical senses—olfaction and gustation. The focus of this paper is olfaction. In light of new physiological and psychophysical research on olfaction, I consider whether olfactory experience is object-based. In particular, I explore the claim that “odor objects” constitute sensory individuals. It isn’t obvious—at least at the outset—whether (...)
    Download  
     
    Export citation  
     
    Bookmark   18 citations  
  27. Mathematical biology and the existence of biological laws.Mauro Dorato - 2012 - In D. Dieks, S. Hartmann, T. Uebel & M. Weber (eds.), Probabilities, Laws and Structure. Springer.
    An influential position in the philosophy of biology claims that there are no biological laws, since any apparently biological generalization is either too accidental, fact-like or contingent to be named a law, or is simply reducible to physical laws that regulate electrical and chemical interactions taking place between merely physical systems. In the following I will stress a neglected aspect of the debate that emerges directly from the growing importance of mathematical models of biological phenomena. My main aim (...)
    Download  
     
    Export citation  
     
    Bookmark   9 citations  
  28. Complexity Reality and Scientific Realism.Avijit Lahiri - manuscript
    We introduce the notion of complexity, first at an intuitive level and then in relatively more concrete terms, explaining the various characteristic features of complex systems with examples. There exists a vast literature on complexity, and our exposition is intended to be an elementary introduction, meant for a broad audience. -/- Briefly, a complex system is one whose description involves a hierarchy of levels, where each level is made of a large number of components interacting among themselves. The time evolution (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  29. Reflections on a theory of organisms: holism in biology.Walter M. Elsasser - 1987 - Baltimore, Md: Published for the Johns Hopkins Dept. of Earth and Planetary Sciences by the Johns Hopkins University Press.
    Are living organisms--as Descartes argued--just machines? Or is the nature of life such that it can never be fully explained by mechanistic models? In this thought-provoking and controversial book, eminent geophysicist Walter M. Elsasser argues that the behavior of living organisms cannot be reduced to physico-chemical causality. Suggesting that molecular biology today is at the same point as Newtonian physics on the eve of the quantum revolution, Elsasser lays the foundation for a theoretical biology that points the way (...)
    Download  
     
    Export citation  
     
    Bookmark   14 citations  
  30. Information, Computation, Cognition. Agency-Based Hierarchies of Levels.Gordana Dodig-Crnkovic - 2016 - In Vincent C. Müller (ed.), Fundamental Issues of Artificial Intelligence. Cham: Springer. pp. 139-159.
    This paper connects information with computation and cognition via concept of agents that appear at variety of levels of organization of physical/chemical/cognitive systems – from elementary particles to atoms, molecules, life-like chemical systems, to cognitive systems starting with living cells, up to organisms and ecologies. In order to obtain this generalized framework, concepts of information, computation and cognition are generalized. In this framework, nature can be seen as informational structure with computational dynamics, where an (info-computational) agent is needed (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  31.  93
    Towards Soliton Computer Based on Solitary Wave Solution of Maxwell Dirac equation: A Plausible Alternative to Manakov System.Victor Christianto & Florentin Smarandache - 2023 - Bulletin of Pure and Applied Sciences 42.
    In recent years, there are a number of proposals to consider collision-based soliton computer based on certain chemical reactions, namely Belousov-Zhabotinsky reaction, which leads to soliton solutions of coupled Nonlinear Schroedinger equations. They are called Manakov System. But it seems to us that such a soliton computer model can also be based on solitary wave solution of Maxwell-Dirac equation, which reduces to Choquard equation. And soliton solution of Choquard equation has been investigated by many researchers, therefore it seems more (...)
    Download  
     
    Export citation  
     
    Bookmark  
  32. Emil du Bois-Reymond vs Ludimar Hermann.Gabriel Finkelstein - 2006 - Comptes Rendus Biologies 329 (5-6):340-347.
    This essay recounts a controversy between a pioneer electrophysiologist, Emil du Bois-Reymond (1818–1896), and his student, Ludimar Hermann (1838–1914). Du Bois-Reymond proposed a molecular explanation for the slight electrical currents that he detected in frog muscles and nerves. Hermann argued that du Bois-Reymond's ‘resting currents’ were an artifact of injury to living tissue. He contested du Bois-Reymond's molecular model, explaining his teacher's observations as electricity produced by chemical decomposition. History has painted Hermann as the wronged party in this dispute. (...)
    Download  
     
    Export citation  
     
    Bookmark  
  33. Ontology of human consciousness and mind- A correlation of philosophical, mechanical and physicochemical systems.Varanasi Ramabrahmam - manuscript
    The concept of fields available in physics will be considered for application to unravel the mysteries of form, structure and function of human consciousness and mind. The sameness of functions of human consciousness and mind in language acquisition and communication and also acquiring knowledge of various kinds and its will be discussed. In the light of this the limitations of concepts of pure physics and modern physics probes will be discussed. -/- The information and ideas available in the Upanishads in (...)
    Download  
     
    Export citation  
     
    Bookmark  
  34. Optimisation of mixed proportion for cement brick containing plastic waste using response surface methodology (RSM).Chuck Chuan Ng - 2022 - Innovative Infrastructure Solutions 7.
    Plastic waste is a significant environmental problem for almost all countries; therefore, protecting the environment from the problem is crucial. The most sensible solution to these problems is substituting the natural aggregates with substantial plastic waste in various building materials. This study aimed to optimise the mixed design ratio of cement brick containing plastic waste as aggregate replacement. Plastic cement brick mixtures were prepared by the incorporation of four different types of plastic waste such as polyethylene terephthalate (PET), high-density polyethylene, (...)
    Download  
     
    Export citation  
     
    Bookmark  
  35.  88
    Environmental Impact of Sustainability Dispersion of Chlorine Releases in Coastal Zone of Alexandra: Spatial-Ecological Modeling.Mohammed El Raey & Moustafa Osman Mohammed - 2024 - International Journal of Environmental and Ecological Engineering 18 (1):21-28.
    The spatial-ecological modeling is relating sustainable dispersions with social development. Sustainability with spatial-ecological model gives attention to urban environments in the design review management to comply with Earth’s system. Naturally exchanged patterns of ecosystems have consistent and periodic cycles to preserve energy flows and materials in Earth’s system. The Probabilistic Risk Assessment (PRA) technique is utilized to assess the safety of an industrial complex. The other analytical approach is the Failure-Safe Mode and Effect Analysis (FMEA) for critical components. The plant (...)
    Download  
     
    Export citation  
     
    Bookmark  
  36. The Artificial Intelligence Explanatory Trade-Off on the Logic of Discovery in Chemistry.José Ferraz-Caetano - 2023 - Philosophies 8 (2):17.
    Explanation is a foundational goal in the exact sciences. Besides the contemporary considerations on ‘description’, ‘classification’, and ‘prediction’, we often see these terms in thriving applications of artificial intelligence (AI) in chemistry hypothesis generation. Going beyond describing ‘things in the world’, these applications can make accurate numerical property calculations from theoretical or topological descriptors. This association makes an interesting case for a logic of discovery in chemistry: are these induction-led ventures showing a shift in how chemists can problematize research questions? (...)
    Download  
     
    Export citation  
     
    Bookmark  
  37. Life, Local Constraints and Meaning Generation. An Evolutionary Approach to Cognition (2015).Christophe Menant - manuscript
    The relations between life and cogntion have been addressed through different perspectives [Stewart 1996, Boden 2001, Bourgine and Stewart 2004, van Duijn & all 2006, Di Paolo 2009]. We would like here to address that subject by relating life to cognition through a process of meaning generation. Life emerged on earth as a far from thermodynamic equilibrium performance that had to maintain herself. Life is charactertized by a ‘stay alive’ constraint that has to be satisfied (such constraint can be included (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  38. Origin of Life as a Probabilistic Event in the Universe.Dimitri Marques Abramov & Carlos Alberto Mourão-Junior - manuscript
    By means of a probabilistic mathematical model, we bring into discussion the origin of life as a stochastic process. We consider only the chance of information emergence in the proteome and genome under the ideal thermodynamic and chemical conditions. For a more realistic model, we used, as a parameter, the information amount in N. equitans genome, the simplest known nowadays, as the equivalent to the first living cell that could have emerged in primitive Earth. We estimated the probability of (...)
    Download  
     
    Export citation  
     
    Bookmark  
  39. Application of Response Surface Methodology on Beneficiation of Sudanese Chromite Ore via Pilot Plant Shaking Table Separator.Mahmoud Motasim - 2020 - International Journal of Academic Multidisciplinary Research (IJAMR) 4 (5):63-73.
    High grade chromite ore has been decreased constantly due to the importance of chromium element in industrial uses such as metallurgical, chemical, and refractory industries. Therefore, beneficiation of low grade has been more significant .Response Surface Methodology (RSM) is combination of statistical and mathematical methods used for modeling and analyzing problems. In this study, the Central Composite Design (CCD) was applied by using Design-Expert (version 6.0.5) for modeling and optimizing the effect of operating variables on the performance of gravity (...)
    Download  
     
    Export citation  
     
    Bookmark  
  40. Talking Monkeys: Philosophy, Psychology, Science, Religion and Politics on a Doomed Planet - Articles and Reviews 2006-2017.Michael Starks - 2017 - Las Vegas, NV USA: Reality Press.
    This collection of articles was written over the last 10 years and edited to bring them up to date (2017). The copyright page has the date of the edition and new editions will be noted there as I edit old articles or add new ones. All the articles are about human behavior (as are all articles by anyone about anything), and so about the limitations of having a recent monkey ancestry (8 million years or much less depending on viewpoint) and (...)
    Download  
     
    Export citation  
     
    Bookmark  
  41. Essays on Farm Household Decision-Making: Evidence from Vietnam.Vu Minh Hien - 2013 - Dissertation, University of Trento
    This thesis contains three studies which provide theoretical analysis and empirical evidence on the decision-making of farm households under shocks and imperfect markets in Vietnam. The first study attempts to investigate the effects of the 2007-08 global food crisis on the investment, saving and consumption decisions of household producers by using the panel data of the Vietnam Household Living Standard Survey (VHLSS), covering 2006 and 2008. The results show that the high food prices had a positive effect on only fixed (...)
    Download  
     
    Export citation  
     
    Bookmark  
  42. Review of Nicolas Langlitz's Neuropsychedelia: The Revival of Hallucinogen Research Since the Decade of the Brain. [REVIEW]Meg Stalcup - 2015 - Somatosphere 2015.
    Humphry Osmond wrote to Aldous Huxley in 1956 proposing the term “psychedelic,” coined from two Greek words to mean “mind manifesting.” The scholars, one a psychiatrist and the other a celebrated novelist and philosopher, were exuberant about the potential of drugs for accessing the mind. Huxley favored a phrase from William Blake: -/- If the doors of perception were cleansed everything would appear to man as it is, infinite. -/- He postulated that psychedelics disturbed the “cerebral reducing valve” (1954), and (...)
    Download  
     
    Export citation  
     
    Bookmark  
  43. The Chemical Bond is a Real Pattern.Vanessa A. Seifert - forthcoming - Philosophy of Science:1-47.
    There is a persisting debate about what chemical bonds are and whether they exist. I argue that chemical bonds are real patterns of interactions between subatomic particles. This proposal resolves the problems raised in the context of existing understandings of the chemical bond and provides a novel way to defend the reality of chemical bonds.
    Download  
     
    Export citation  
     
    Bookmark   3 citations  
  44. Messy Chemical Kinds.Joyce C. Havstad - 2018 - British Journal for the Philosophy of Science 69 (3):719-743.
    Following Kripke and Putnam, the received view of chemical kinds has been a microstructuralist one. To be a microstructuralist about chemical kinds is to think that membership in said kinds is conferred by microstructural properties. Recently, the received microstructuralist view has been elaborated and defended, but it has also been attacked on the basis of complexities, both chemical and ontological. Here, I look at which complexities really challenge the microstructuralist view; at how the view itself might be (...)
    Download  
     
    Export citation  
     
    Bookmark   23 citations  
  45. The Brain and its States.Richard Brown - 2012 - In Shimon Edelman, Tomer Fekete & Neta Zach (eds.), Being in Time: Dynamical Models of Phenomenal Experience. John Benjamins. pp. 211-238.
    In recent times we have seen an explosion in the amount of attention paid to the conscious brain from scientists and philosophers alike. One message that has emerged loud and clear from scientific work is that the brain is a dynamical system whose operations unfold in time. Any theory of consciousness that is going to be physically realistic must take account of the intrinsic nature of neurons and brain activity. At the same time a long discussion on consciousness among philosophers (...)
    Download  
     
    Export citation  
     
    Bookmark   10 citations  
  46.  54
    Models, Fiction and the Imagination.Arnon Levy - 2024 - In Tarja Knuuttila, Natalia Carrillo & Rami Koskinen (eds.), The Routledge Handbook of Philosophy of Scientific Modeling. Routledge.
    Science and fiction seem to lie at opposite ends of the cognitive-epistemic spectrum. The former is typically seen as the study of hard, real-world facts in a rigorous manner. The latter is treated as an instrument of play and recreation, dealing in figments of the imagination. Initial appearances notwithstanding, several central features of scientific modeling in fact suggest a close connection with the imagination and recent philosophers have developed detailed accounts of models that treat them, in one way or (...)
    Download  
     
    Export citation  
     
    Bookmark  
  47. The Chemical Characterization of the Gene: Vicissitudes of Evidential Assessment.Jacob Stegenga - 2011 - History and Philosophy of the Life Sciences 33 (1):105-127.
    The chemical characterization of the substance responsible for the phenomenon of “transformation” of pneumococci was presented in the now famous 1944 paper by Avery, MacLeod, and McCarty. Reception of this work was mixed. Although interpreting their results as evidence that deoxyribonucleic acid (DNA) is the molecule responsible for genetic changes was, at the time, controversial, this paper has been retrospectively celebrated as providing such evidence. The mixed and changing assessment of the evidence presented in the paper was due to (...)
    Download  
     
    Export citation  
     
    Bookmark   3 citations  
  48. The Conditions for Ethical Chemical Restraints.Parker Crutchfield & Michael Redinger - 2024 - American Journal of Bioethics Neuroscience 15 (1):3-16.
    The practice of medicine frequently involves the unconsented restriction of liberty. The reasons for unilateral liberty restrictions are typically that being confined, strapped down, or sedated are necessary to prevent the person from harming themselves or others. In this paper, we target the ethics of chemical restraints, which are medications that are used to intentionally restrict the mental states associated with the unwanted behaviors, and are typically not specifically indicated for the condition for which the patient is being treated. (...)
    Download  
     
    Export citation  
     
    Bookmark   9 citations  
  49. Chemical arbitrariness and the causal role of molecular adapters.Oliver M. Lean - 2019 - Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences 78:101180.
    Jacques Monod (1971) argued that certain molecular processes rely critically on the property of chemical arbitrariness, which he claimed allows those processes to “transcend the laws of chemistry”. It seems natural, as some philosophers have done, to interpret this in modal terms: a biological relationship is chemically arbitrary if it is possible, within the constraints of chemical “law”, for that relationship to have been otherwise than it is. But while modality is certainly important for understanding chemical arbitrariness, (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  50. Chemical Castration as Punishment.Katrina L. Sifferd - 2020 - In Nicole A. Vincent, Thomas Nadelhoffer & Allan McCay (eds.), Neurointerventions and the Law: Regulating Human Mental Capacity. Oxford University Press, Usa.
    This chapter explores whether chemical castration can be justified as a form of criminal punishment. The author argues that castration via the drug medroxyprogesterone acetate (MPA), or some similar drug, does not achieve the punishment aims of retribution, deterrence, or incapacitation, but might serve as punishment in the form of rehabilitative treatment. However, current U.S. chemical castration statutes are too broad to be justified as rehabilitative. The state is warranted in targeting psychological states in criminal defendants for rehabilitative (...)
    Download  
     
    Export citation  
     
    Bookmark  
1 — 50 / 1000