Results for 'Derar H. Abdel-Qader'

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  1. The Role of Vitamin D in the Incidence of Metabolic Syndrome in Undergraduate Female Students in Saudi Arabia.aHala M. Abdelkarem, Aishah H. Alamri, bFadia Y. Abdel Megeid, cMervat M. Al-Sayed & Omyma K. Radwan - 2018 - International Journal of Academic Health and Medical Research (IJAHMR) 2 (11):7-12.
    Abstract: Background: Vitamin D insufficiency/deficiency prevalent in all age groups across the world is common in obesity and may play an important role in the risk factors of metabolic syndrome (MS). Objectives: This cross-sectional study is to evaluate the relationship between levels of adiponectin and circulating 25(OH)D, and its effect on metabolic biomarker among overweight/obese female students. Methods: Three hundred female students; with mean age 20.9 ± 3.2 years were attending the Aljouf University, Sakaka, Saudi Arabia. They were randomly selected (...)
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  2. The Effects of The Hidden Economy in Sudan And its Reduction Strategies.Abdel Muttalib Ali Ibnouf & Howyda Tahir Hassan Taha - 2019 - International Journal of Academic Accounting, Finance and Management Research (IJAAFMR) 3 (1):44-52.
    Abstract: The economic and social effects of the phenomenon of the hidden economy include that some of the funds practiced by the hidden economic activity result from evasion of payment of taxes owed to the state, which necessarily means the lack of resources available to the state to finance its economic and social development programs. Through the ability to secure goods at prices lower than the prices of goods in the official sector and this is generated by encouraging the growing (...)
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  3. Neutrosophic Association Rule Mining Algorithm for Big Data Analysis.Mohamed Abdel-Basset, Mai Mohamed, Florentin Smarandache & Victor Chang - 2018 - Symmetry 10 (4):1-19.
    Big Data is a large-sized and complex dataset, which cannot be managed using traditional data processing tools. Mining process of big data is the ability to extract valuable information from these large datasets. Association rule mining is a type of data mining process, which is indented to determine interesting associations between items and to establish a set of association rules whose support is greater than a specific threshold. The classical association rules can only be extracted from binary data where an (...)
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  4. Taylor Series Approximation to Solve Neutrosophic Multiobjective Programming Problem.Ibrahim Hezam, Mohamed Abdel-Baset & Florentin Smarandache - 2015 - Neutrosophic Sets and Systems 10:39-45.
    In this paper, Taylor series is used to solve neutrosophic multi-objective programming problem (NMOPP). In the proposed approach, the truth membership, Indeterminacy membership, falsity membership functions associated with each objective of multi-objective programming problems are transformed into a single objective linear programming problem by using a first order Taylor polynomial series. Finally, to illustrate the efficiency of the proposed method, a numerical experiment for supplier selection is given as an application of Taylor series method for solving neutrosophic multi-objective programming problem (...)
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  5. Neutrosophic Integer Programming Problem.Mai Mohamed, Mohamed Abdel-Basset, Abdel Nasser Zaied & Florentin Smarandache - 2017 - Neutrosophic Sets and Systems 15:3-7.
    In this paper, we introduce the integer programming in neutrosophic environment, by considering coffecients of problem as a triangulare neutrosophic numbers. The degrees of acceptance, indeterminacy and rejection of objectives are simultaneously considered. The Neutrosophic Integer Programming Problem (NIP) is transformed into a crisp programming model, using truth membership (T), indeterminacy membership (I), and falsity membership (F) functions as well as single valued triangular neutrosophic numbers. To measure the efficiency of the model, we solved several numerical examples.
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  6. Friedrich Engels and the technoscientific reproducibility of life.H. A. E. Zwart - 2020 - Science and Society : A Journal of Marxist Thought and Analysis 84 (3):369- 400.
    Friedrich Engels’ dialectical assessment of modern science resulted from his fascination with the natural sciences in combination with his resurging interest in the work of “old Hegel.” Engels became especially interested in what he saw as the molecular essence of life, namely proteins or, more specifically, albumin, seeing life as the mode of existence of these enigmatic substances. Hegelian dialectics is crucial for a dialectical materialist understanding of contemporary technoscience. The dialectical materialist understanding of technoscience as a research practice builds (...)
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  7. A Bipolar Neutrosophic Multi Criteria Decision Making Framework for Professional Selection.Mohamed Abdel-Basset, Abduallah Gamal, Le Hoang Son & Florentin Smarandache - 2020 - Applied Sciences 10 (1):1-21.
    In this paper, we propose a new hybrid neutrosophic multi criteria decision making (MCDM) framework that employs a collection of neutrosophic analytical network process (ANP), and order preference by similarity to ideal solution (TOPSIS) under bipolar neutrosophic numbers. The MCDM framework is applied for chief executive officer (CEO) selection in a case study at the Elsewedy Electric Group, Egypt. The proposed approach allows us to assemble individual evaluations of the decision makers and therefore perform accurate personnel selection. The outcomes of (...)
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  8. From Decline of the West to Dawn of Day.H. A. E. Zwart - 2020 - Janus Head: Journal of Interdisciplinary Studies in Literature, Continental Philosophy, Phenomenological Psychology, and the Arts 18 (1):55-66.
    This paper subjects Dan Brown’s most recent novel Origin to a philosophical reading. Origin is regarded as a literary window into contemporary technoscience, inviting us to explore its transformative momentum and disruptive impact, focusing on the cultural significance of artificial intelligence and computer science: on the way in which established world-views are challenged by the incessant wave of scientific discoveries made possible by super-computation. While initially focusing on the tension between science and religion, the novel’s attention gradually shifts to the (...)
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  9. Radical religious thought in Black popular music. Five Percenters and Bobo Shanti in Rap and Reggae.Martin Abdel Matin Gansinger - 2017 - Hamburg, Germany: Anchor.
    This book is discussing patterns of radical religious thought in popular forms of Black music. The consistent influence of the Five Percent Nation on Rap music as one of the most esoteric groups among the manifold Black Muslim movements has already gained scholarly attention. However, it shares more than a strong pattern of reversed racism with the Bobo Shanti Order, the most rigid branch of the Rastafarian faith, globally popularized by Dancehall-Reggae artists like Sizzla or Capleton. Authentic devotion or calculated (...)
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  10. Climate Change and Decision Theory.Andrea S. Asker & H. Orri Stefánsson - 2023 - In Pellegrino Gianfranco & Marcello Di Paola (eds.), Handbook of Philosophy of Climate Change. Springer Nature. pp. 267-286.
    Many people are worried about the harmful effects of climate change but nevertheless enjoy some activities that contribute to the emission of greenhouse gas (driving, flying, eating meat, etc.), the main cause of climate change. How should such people make choices between engaging in and refraining from enjoyable greenhouse-gas-emitting activities? In this chapter, we look at the answer provided by decision theory. Some scholars think that the right answer is given by interactive decision theory, or game theory; and moreover think (...)
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  11. Forecasting Stock Prices using Artificial Neural Network.Ahmed Munther Abdel Hadi & Samy S. Abu-Naser - 2023 - International Journal of Engineering and Information Systems (IJEAIS) 7 (10):42-50.
    Abstract: Accurate stock price prediction is essential for informed investment decisions and financial planning. In this research, we introduce an innovative approach to forecast stock prices using an Artificial Neural Network (ANN). Our dataset, consisting of 5582 samples and 6 features, including historical price data and technical indicators, was sourced from Yahoo Finance. The proposed ANN model, composed of four layers (1 input, 1 hidden, 1 output), underwent rigorous training and validation, yielding remarkable results with an accuracy of 99.84% and (...)
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  12. The Use of Artificial Intelligence Techniques and Their Impact on Improving the Higher Education Outcomes of Business Administrative Colleges in Palestinian Universities.Khalid Abdel Fattah Tawfiq Atieh, Ghadir Mohammad Said Ali Ahmad, Mays Ala'din Qasem Awwad & Mazen J. Al Shobaki - 2023 - International Journal of Engineering and Information Systems (IJEAIS) 7 (1):83-92.
    The study aims to identify the impact of the use of artificial intelligence techniques in improving the outputs of higher education in Business Administrative Colleges in the universities under study that formed the research community. As for the sample, it consisted of (130) academic respondents in these universities under study. The research concluded that there is a statistically significant effect of using artificial intelligence techniques (expert systems, neural networks) in improving the outputs of higher education in Business Administrative Colleges under (...)
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  13. Personal identity in multicultural constitutional democracies.H. P. P. Lotter - 1998 - South African Journal of Philosophy 17 (3):179-198.
    Awareness of, and respect for differences of gender, race, religion, language, and culture have liberated many oppressed groups from the hegemony of white, Western males. However, respect for previously denigrated collective identities should not be allowed to confine individuals to identities constructed around one main component used for political mobilisation, or to identities that depend on a priority of properties that are not optional, like race, gender, and language. In this article I want to sketch an approach for accommodating different (...)
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  14. Breast Cancer Diagnosis and Survival Prediction Using JNN.Mohammed Ziyad Abu Shawarib, Ahmed Essam Abdel Latif, Bashir Essam El-Din Al-Zatmah & Samy S. Abu-Naser - 2020 - International Journal of Engineering and Information Systems (IJEAIS) 4 (10):23-30.
    Abstract: Breast cancer is reported to be the most common cancer type among women worldwide and it is the second highest women fatality rate amongst all cancer types. Notwithstanding all the progresses made in prevention and early intervention, early prognosis and survival prediction rates are still not sufficient. In this paper, we propose an ANN model which outperforms all the previous supervised learning methods by reaching 99.57 in terms of accuracy in Wisconsin Breast Cancer dataset. Experimental results on Haberman’s Breast (...)
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  15. Dynamic and Complex Viscosity of Polystyrene/ Waste Tires Composites.Mahmoud Abdel-Halim Abdel-Goad - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (8):12-17.
    Abstract: In this work, polystyrene/waste tires composites were prepared using the melt-mixing method. The viscoelastic properties of PS and PS/composite have been evaluated and compared. These properties were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements are carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The dynamic and complex viscosity of the PS composites were studied and compared with (...)
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  16. Molecular Characterization of Polystyrene/ Waste Tires Composites.Mahmoud Abdel-Halim Abdel-Goad - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 4 (2):33-36.
    In this work, polystyrene/waste tires composites were prepared using the melt-mixing method.. The effect of the preparation conditions of the PS/waste tires composite is investigated in this work by using Gel permeation chromatography (GPC) technique. Stability at elevated temperatures were found to increase with the addition of waste tires to PS as confirmed by the results. GPC results indicate that the preparation conditions of the PS/waste tires composite has no effect on the Ps chains as indicated by GPC technique. The (...)
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  17. Rheological Characteristics of Waste Polyvinyl Chloride-Bitumen Composites: Part III.Mahmoud Abdel-Halim Abdel-Goad & Ijarw Ijeais - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (2):18-21.
    Abstract— Waste Polyvinyl chloride-bitumen composites were prepared in the molten state by addition waste PVC pipes to commercial bitumen in different concentrations. The original material of the pure bitumen and bitumen composites are rheologically characterized. The viscoelastic properties such as shear compliance, torque and viscosity were measured and compared. These properties were studied using an ARES- Rheometer (Rheometric Scientific, Co.) equipment. The measurements were performed in the dynamic mode, plate-plate geometry of 25 mm diameter over the temperature range from –10 (...)
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  18. Rheological Properties of Polyvinylacetate: Compliance and Relaxation Spectrum.Mahmoud Abdel-Halim Abdel-Goad - 2019 - International Journal of Engineering and Information Systems (IJEAIS) 3 (5):8-10.
    Abstract: The dynamic viscoelastic properties of Polyvinylacetate with molecular weight 83000g/mol (PVA 83K ) were determined by using a Rheometer operated in the dynamic mode and 8 mm parallel plate over a wide range of temperature as a function of frequency. The measurements were performed successively in the parallel plate geometry using 8 mm plate instead of 25 mm. The glass plateau regime is clearly observed because we could measure PVA 83K sample successively under its glass temperature. The rheological properties (...)
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  19. The Shear Creep Stress and Loss Factor of Polystyrene/ Waste Tires Composites.Mahmoud Abdel-Halim Abdel-Goad - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 4 (2):29-32.
    Abstract— Polystyrene/waste tires composites were prepared in this study by incorporating shredded waste tires into polydisperse polystyrene in a melt-mixing method. The dynamic mechanical properties of PS and PS/composite have been evaluated and compared. These properties were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements are carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The shear creep stress J(t) (...)
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  20. Rheological Characterization of Bitumen/Waste Polyethylene Composites: Part III.Mahmoud Abdel-Halim Abdel-Goad - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (2):1-10.
    Waste polyethylene (PE) bags were reused in the modification of commercially available bitumen. The bitumen/PE blend was prepared by mixing homogenously commercial bitumen with waste PE in the molten state. The samples of bitumen blend and bitumen base were rheologically analyzied. The rheological properties such as complex modulus, shear compliance, torque and complex viscosity of bitumen and bitumen blend were studied using an ARES- Rheometer (Rheometric Scientific, Co.) in the dynamic mode, plate-plate geometry with diameter 8 mm. The measurements were (...)
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  21. Dynamic Mechanical Analysis for Waste Tires Reinforced Polystyrene: Shear Compliance.Mahmoud Abdel-Halim Abdel-Goad - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (8):51-54.
    Abstract: Polystyrene/waste tires composites were prepared in this study by incorporating small particles of waste tires into polydisperse commercial polystyrene (PS) in a melt-mixing method. The dynamic mechanical properties of PS and PS/composite were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements were carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The shear compliance of PS composite were studied (...)
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  22. Rheological Properties of Polyvinylacetate: Part II.Mahmoud Abdel-Halim Abdel-Goad - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (2):1-8.
    The dynamic viscoelastic properties of Polyvinylacetate with molecular weight 83000g/mol (PVA 83K) were determined by using a Rheometer operated in the dynamic mode and 8 mm parallel plate over a wide range of temperature as a function of frequency. The measurements were performed successively in the parallel plate geometry using 8 mm plate instead of 25 mm. The glass plateau regime is clearly observed because we could measure PVA 83K sample successively under its glass temperature. The rheological properties of polydisperse (...)
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  23. Reuse of Waste Plastic in the Modification of Rheological Characteristics of Bitumen.Mahmoud Abdel-Halim Abdel-Goad & Hisham El-Shrief - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (12):31-35.
    Abstract: Waste polyvinylchloride (PVC) pipes were reused in the modification of commercially available bitumen. Waste PVC/ bitumen blends were prepared by melt-mixing method. Rheological characteristics of the neat bitumen and bitumen blends samples were investigated. The rheological properties were determined using an ARES- Rheometer (Rheometric Scientific, Co.) under nitrogen atmosphere in parallel plate geometry with diameter 25 mm. The measurements were performed over a wide range of temperatures ranged from -10°C to 60°C and frequencies from 100 to 0.1 radians per (...)
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  24. Complex Modulus of Waste Tires Reinforced Polystyrene.Mahmoud Abdel-Halim Abdel-Goad - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (8):11-18.
    Abstract: In this work, polystyrene/waste tires composites were prepared by incorporating of waste tires into polydisperse commercial polystyrene in a melt-mixing method. The rheological characterization of PS and PS/composite have been studied and compared. These properties were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements are carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The complex modulus (G*) were (...)
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  25. Rheological Characteristics of Waste Polyvinyl Chloride-Bitumen Composites: Part II.Mahmoud Abdel-Halim Abdel-Goad & Ijarw Ijeais - 2018 - International Journal of Engineering and Information Systems (IJEAIS) 2 (2):13-17.
    Abstract— Waste Polyvinyl chloride-bitumen composites were prepared in the molten state by addition waste PVC pipes to commercial bitumen in different concentrations. The original material of the pure bitumen and bitumen composites are rheologically characterized. The viscoelastic properties such as shear compliance, torque and viscosity were measured and compared. These properties were studied using an ARES- Rheometer (Rheometric Scientific, Co.) equipment. The measurements were performed in the dynamic mode, plate-plate geometry of 25 mm diameter over the temperature range from –10 (...)
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  26. A Dilemma for Reductive Compatibilism.Robert H. Wallace - 2023 - Erkenntnis 88 (7):2763–2785.
    A common compatibilist view says that we are free and morally responsible in virtue of the ability to respond aptly to reasons. Many hold a version of this view despite disagreement about whether free will requires the ability to do otherwise. The canonical version of this view is reductive. It reduces the pertinent ability to a set of modal properties that are more obviously compatible with determinism, like dispositions. I argue that this and any reductive view of abilities faces a (...)
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  27. The Hidden Economy in Sudan Causes and Size.Howyda Tahir Hassan Taha & Abdel Muttalib Ali Ibnouf - 2018 - International Journal of Academic Accounting, Finance and Management Research (IJAAFMR) 3 (1):1-7.
    Abstract: The high rates of taxes and customs duties push many to practice various hidden economic activities ranging from tax evasion to money laundering. The basic premise is that the large size of the hidden economy has led to weak economic growth and sustainable development. The researcher relied on descriptive analytical methodology, which was concerned with describing the various aspects related to Sudan's adoption of taxes in financing its public budget and the increase in customs duties and administrative complexities in (...)
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  28. Is perception cognitively penetrable? A philosophically satisfying and empirically testable reframing.Gary Lupyan, Dustin Stokes, Fiona Macpherson, Rasha Abdel Rahman & Robert Goldstone - 2013 - Proceedings of the 35th Annual Conference of the Cognitive Science Society 1:91-2.
    The question of whether perception can be penetrated by cognition is in the limelight again. The reason this question keeps coming up is that there is so much at stake: Is it possible to have theory-neutral observation? Is it possible to study perception without recourse to expectations, context, and beliefs? What are the boundaries between perception, memory, and inference (and do they even exist)? Are findings from neuroscience that paint a picture of perception as an inherently bidirectional and interactive process (...)
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  29. What Is Risk Aversion?H. Orii Stefansson & Richard Bradley - 2019 - British Journal for the Philosophy of Science 70 (1):77-102.
    According to the orthodox treatment of risk preferences in decision theory, they are to be explained in terms of the agent's desires about concrete outcomes. The orthodoxy has been criticised both for conflating two types of attitudes and for committing agents to attitudes that do not seem rationally required. To avoid these problems, it has been suggested that an agent's attitudes to risk should be captured by a risk function that is independent of her utility and probability functions. The main (...)
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  30. The Pragmatist Challenge: Pragmatist Metaphysics for Philosophy of Science.H. K. Andersen & Sandra D. Mitchell (eds.) - 2023 - Oxford, UK: Oxford University Press.
    This volume offers a collection of in-depth explorations of pragmatism as a framework for discussions in philosophy of science and metaphysics. Each chapter involves explicit reflection on what it means to be pragmatist, and how to use pragmatism as a guiding framework in addressing topics such as realism, unification, fundamentality, truth, laws, reduction, and more. -/- .
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  31. Can I Both Blame and Worship God?Robert H. Wallace - forthcoming - In Aaron Segal & Samuel Lebens (eds.), The Philosophy of Worship: Divine and Human Aspects. Cambridge University Press.
    In a well-known apocryphal story, Theresa of Avila falls off the donkey she was riding, straight into mud, and injures herself. In response, she seems to blame God for her fall. A playful if indignant back and forth ensues. But this is puzzling. Theresa should never think that God is blameworthy. Why? Apparently, one cannot blame what one worships. For to worship something is to show it a kind of reverence, respect, or adoration. To worship is, at least in part, (...)
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  32. Compatibilism as Non-Ideal Theory: A Manifesto.Robert H. Wallace - 2024 - In David Shoemaker, Santiago Amaya & Manuel Vargas (eds.), Oxford Studies in Agency and Responsibility Volume 8: Non-Ideal Agency and Responsibility. Oxford University Press.
    This paper articulates and responds to a challenge to contemporary compatibilist views of free will. Despite the popularity and appeal of compatibilist theories, many are left with lingering doubts about compatibilism. This paper explains this doubt in terms of the absurdity challenge: because a compatibilist accepts that they do not have causal access to all the actual sufficient causal sources of their own agency, the compatibilist can find their own agency absurd. By taking a cue from political philosophy, this paper (...)
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  33. Ostrich, an Analytical Study in Economic Geography.Dr Huda Abdel Rahim Abdelkader - 2018 - International Journal of Academic Multidisciplinary Research (IJAMR) 2 (12):69-82.
    Abstract: The ostrich industry in Egypt is an emerging economic activity, which has spread especially since 1998 on the scale of small and medium farms, some farms and large companies. The study deals with the study of ostriches through an analytical study in economic geography. It deals with several axes including: Ostrich industry in Egypt and ostrich species through the geographical study of ostrich production: in view of the geographical distribution of ostrich farms in ancient Egypt and recent times, Ostrich (...)
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  34. Punishment and Responsibility: Essays in the Philosophy of Law.H. L. A. Hart - 1968 - Oxford University Press.
    This classic collection of essays, first published in 1968, represents H.L.A. Hart's landmark contribution to the philosophy of criminal responsibility and punishment. Unavailable for ten years, this new edition reproduces the original text, adding a new critical introduction by John Gardner, a leading contemporary criminal law theorist.
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  35.  48
    Breast Cancer Knowledge Based System.Mohammed H. Aldeeb & Samy S. Abu-Naser - 2023 - International Journal of Engineering and Information Systems 7 (6):46-51.
    Abstract: The Knowledge-Based System for Diagnosing Breast Cancer aims to support medical students in enhancing their education regarding diagnosis and counseling. The system facilitates the analysis of biopsy images under a microscope, determination of tumor type, selection of appropriate treatment methods, and identification of disease-related questions. According to the Ministry of Health's annual report in Gaza, there were 7,069 cases of breast cancer between 2009 and 2014, with 1,502 cases reported in 2014. In an era dominated by visual information, where (...)
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  36.  82
    Proper Functions are Proximal Functions.H. Fagerberg & Justin Garson - forthcoming - British Journal for the Philosophy of Science.
    This paper argues that proper functions are proximal functions. In other words, it rejects the notion that there are distal biological functions – strictly speaking, distal functions are not functions at all, but simply beneficial effects normally associated with a trait performing its function. Once we rule out distal functions, two further positions become available: dysfunctions are simply failures of proper function, and pathological conditions are dysfunctions. Although elegant and seemingly intuitive, this simple view has had surprisingly little uptake in (...)
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  37. Should I Offset or Should I Do More Good?H. Orri Stefansson - 2022 - Ethics, Policy and Environment 25 (3):225-241.
    ABSTRACT Offsetting is a very ineffective way to do good. Offsetting your lifetime emissions may increase aggregated life expectancy by at most seven years, while giving the amount it costs to offset your lifetime emissions to a malaria charity saves in expectation the life of at least one child. Is there any moral reason to offset rather than giving to some charity that does good so much more effectively? There might be such a reason if your offsetting compensated or somehow (...)
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  38. Managerial ethical leadership, ethical climate and employee ethical behavior: does moral attentiveness matter?Hussam Al Halbusi, Pablo Ruiz-Palomino, Rafael Morales-Sánchez & Fadi Abdel Muniem - 2021 - Ethical and Behavior 8:2-24.
    Ethical leaders can influence followers’ ethical behaviors by establishing an ethical climate. However, followers’ responses to an ethical climate may also differ according to the amount of attention they devote to moral questions. This study analyzes whether moral attentiveness augments the positive effect of an ethical climate on employees’ ethical behaviors, as well as the indirect effect of ethical leadership on employee ethical behavior through an ethical climate. Data from 270 employees in the Malaysian manufacturing industry indicate that the positive (...)
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  39. On the Limits of the Precautionary Principle.H. Orri Stefansson - 2019 - Risk Analysis 39 (6):1204-1222.
    The Precautionary Principle (PP) is an influential principle of risk management. It has been widely introduced into environmental legislation, and it plays an important role in most international environmental agreements. Yet, there is little consensus on precisely how to understand and formulate the principle. In this paper I prove some impossibility results for two plausible formulations of the PP as a decision-rule. These results illustrate the difficulty in making the PP consistent with the acceptance of any trade-offs between catastrophic risks (...)
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  40. W.V. Quine, Immanuel Kant Lectures, translated and introduced by H.G. Callaway.H. G. Callaway & W. V. Quine (eds.) - 2003 - Frommann-Holzboog.
    This book is a translation of W.V. Quine's Kant Lectures, given as a series at Stanford University in 1980. It provide a short and useful summary of Quine's philosophy. There are four lectures altogether: I. Prolegomena: Mind and its Place in Nature; II. Endolegomena: From Ostension to Quantification; III. Endolegomena loipa: The forked animal; and IV. Epilegomena: What's It all About? The Kant Lectures have been published to date only in Italian and German translation. The present book is filled out (...)
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  41. Adaptive Preference.H. E. Baber - 2007 - Social Theory and Practice 33 (1):105-126.
    I argue, first, that the deprived individuals whose predicaments Nussbaum cites as examples of "adaptive preference" do not in fact prefer the conditions of their lives to what we should regard as more desirable alternatives, indeed that we believe they are badly off precisely because they are not living the lives they would prefer to live if they had other options and were aware of them. Secondly, I argue that even where individuals in deprived circumstances acquire tastes for conditions that (...)
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  42. Revisionary dispositionalism and practical reason.H. Lillehammer - 2000 - The Journal of Ethics 4 (3):173-190.
    This paper examines the metaphysically modest view that attributionsof normative reasons can be made true in the absence of a responseindependent normative reality. The paper despairs in finding asatisfactory account of normative reasons in metaphysically modestterms.
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  43. Ambiguity Aversion behind the Veil of Ignorance.H. Orri Stefánsson - 2021 - Synthese 198 (7):6159-6182.
    The veil of ignorance argument was used by John C. Harsanyi to defend Utilitarianism and by John Rawls to defend the absolute priority of the worst off. In a recent paper, Lara Buchak revives the veil of ignorance argument, and uses it to defend an intermediate position between Harsanyi's and Rawls' that she calls Relative Prioritarianism. None of these authors explore the implications of allowing that agent's behind the veil are averse to ambiguity. Allowing for aversion to ambiguity---which is both (...)
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  44. Liberalism and the Moral Significance of Individualism: A Deweyan View.H. G. Callaway - 1994 - Reason Papers 19 (Fall):13-29.
    A liberalism which scorns all individualism is fundamentally misguided. This is the chief thesis of this paper. To argue for it, I look closely at some key concepts. The concepts of morislity and individualism are crucial. I emphasize Dewey on the "individuality of the mind" and a Deweyan discussion of language, communication, and community. The thesis links individualism and liberalism, and since appeals to liberalism have broader appeal in the present context of discussions, I start with consideration of liberalism. The (...)
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  45. A trilemma for the lexical utility model of the precautionary principle.H. Orri Stefánsson - forthcoming - Philosophical Studies:1-17.
    Bartha and DesRoches (2021) and Steel and Bartha (2023) argue that we should understand the precautionary principle as the injunction to maximise lexical utilities. They show that the lexical utility model has important pragmatic advantages. Moreover, the model has the theoretical advantage of satisfying all axioms of expected utility theory except continuity. In this paper I raise a trilemma for any attempt at modelling the precautionary principle with lexical utilities: it permits choice cycles or leads to paralysis or implies that (...)
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  46. In defence of Pigou-Dalton for chances.Stefánsson H. Orri - 2023 - Utilitas 35 (4):292-311.
    I defend a weak version of the Pigou-Dalton principle for chances. The principle says that it is better to increase the survival chance of a person who is more likely to die rather than a person who is less likely to die, assuming that the two people do not differ in any other morally relevant respect. The principle justifies plausible moral judgements that standard ex post views, such as prioritarianism and rank-dependent egalitarianism, cannot accommodate. However, the principle can be justified (...)
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  47. Identified Person "Bias" as Decreasing Marginal Value of Chances.H. Orri Stefánsson - 2024 - Noûs 58 (2):536-561.
    Many philosophers think that we should use a lottery to decide who gets a good to which two persons have an equal claim but which only one person can get. Some philosophers think that we should save identified persons from harm even at the expense of saving a somewhat greater number of statistical persons from the same harm. I defend a principled way of justifying both judgements, namely, by appealing to the decreasing marginal moral value of survival chances. I identify (...)
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  48. Collective Responsibility.H. D. Lewis - 1948 - Philosophy 23 (84):3 - 18.
    If I were asked to put forward an ethical principle which I considered to be especially certain, it would be that no one can be responsible, in the properly ethical sense, for the conduct of another. Responsibility belongs essentially to the individual. The implications of this principle are much more far-reaching than is evident at first, and reflection upon them may lead many to withdraw the assent which they might otherwise be very ready to accord to this view of responsibility. (...)
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  49. Counterfactual Skepticism and Multidimensional Semantics.H. Orri Stefánsson - 2018 - Erkenntnis 83 (5):875-898.
    It has recently been argued that indeterminacy and indeterminism make most ordinary counterfactuals false. I argue that a plausible way to avoid such counterfactual skepticism is to postulate the existence of primitive modal facts that serve as truth-makers for counterfactual claims. Moreover, I defend a new theory of ‘might’ counterfactuals, and develop assertability and knowledge criteria to suit such unobservable ‘counterfacts’.
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  50. The Economics and Philosophy of Risk.H. Orri Stefansson - 2021 - In Conrad Heilmann & Julian Reiss (eds.), The Routledge Handbook of the Philosophy of Economics. Routledge.
    Neoclassical economists use expected utility theory to explain, predict, and prescribe choices under risk, that is, choices where the decision-maker knows---or at least deems suitable to act as if she knew---the relevant probabilities. Expected utility theory has been subject to both empirical and conceptual criticism. This chapter reviews expected utility theory and the main criticism it has faced. It ends with a brief discussion of subjective expected utility theory, which is the theory neoclassical economists use to explain, predict, and prescribe (...)
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