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Siblings:History/traditions: Chemistry

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  1. Magic, Science and Masculinity: Marketing Toy Chemistry Sets.Salim Al-Gailani - 2009 - Studies in History and Philosophy of Science Part A 40 (4):372-381.
    At least since the late nineteenth century, toy chemistry sets have featured in standard scripts of the achievement of eminence in science, and they remain important in constructions of scientific identity. Using a selection of these toys manufactured in Britain and the United States, and with particular reference to the two dominant American brands, Gilbert and Chemcraft, this paper suggests that early twentieth-century chemistry sets were rooted in overlapping Victorian traditions of entertainment magic and scientific recreations. As chemistry set marketing (...)
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  2. Carbon Nanotubes as Nanosensor for Differential Electrolytic Micropotentiometry.Abdulaziz N. Amro - 2014 - American Journal of Analytical Chemistry 5:879-890.
    Carbon nanotubes as nanosensor were synthesized on the surface of the silver electrode using floating catalyst chemical vapor deposition reactor. Acetylene gas was used as a carbon source eww140926dxn, ferrocene as a source of the iron nanocatalyst and hydrogen as a carrier and an activate agent. Several runs were performed to find the optimum conditions that produce sensitive Ag-CNTs electrodes. The electrodes obtained at each run were characterized by SEM. The optimum conditions that produce sensitive Ag-CNTs were found to be (...)
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  3. Categorization, Anomalies and the Discovery of Nuclear Fission.Hanne Andersen - 1996 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 27 (4):463-492.
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  4. Bending Molecules or Bending the Rules? The Application of Theoretical Models in Fragrance Chemistry.Ann-Sophie Barwich - 2015 - Perspectives on Science 23 (4):443-465.
    What does it take for a scientific model to represent? Scientific models have received a great deal of attention in recent philosophical literature. Following Morgan and Morrison’s account of “Models as Mediators”, analysis of how models represent has changed from questioning what properties of models can be said to correlate with the world to asking how models are used to relate to an intended target-system. This turn to a practice-oriented approach of understanding models was a response to a general philosophical (...)
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  5. A Sense So Rare: Measuring Olfactory Experiences and Making a Case for a Process Perspective on Sensory Perception.Ann-Sophie Barwich - 2014 - Biological Theory 9 (3):258-268.
    Philosophical discussion about the reality of sensory perceptions has been hijacked by two tendencies. First, talk about perception has been largely centered on vision. Second, the realism question is traditionally approached by attaching objects or material structures to matching contents of sensory perceptions. These tendencies have resulted in an argumentative impasse between realists and anti-realists, discussing the reliability of means by which the supposed causal information transfer from object to perceiver takes place. Concerning the nature of sensory experiences and their (...)
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  6. Biodegradable Guar Gum Nanoparticles as Carrier for Tamoxifen Citrate in Treatment of Breast Cancer.Biodegradable Guar Gum Nanoparticles as Carrier for Tamoxifen Citrate in Treatment of Breast Cancer - 2014 - JBNB 5:220-228.
    We prepared, characterized and studied the biodistribution of tamoxifen citrate (TMX) loaded cross-linked guar gum (GG) nanoparticles (NPs). NPs were prepared via a single step emulsion process and particle size evaluated. The extent of tissue distribution and retention following oral administration of TMX loaded GG NPs and TMX tablet in female albino mice was analyzed over a period of 48 hours. Till 48 hours, the particles remained detectable in both mammary and ovary tissue (estrogen receptors). Uptake and retention of TMX (...)
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  7. Harvesting the Promise of AOPs: An Assessment and Recommendations.Annamaria Carusi, Mark R. Davies, Giovanni De De Grandis, Beate I. Escher, Geoff Hodges, Kenneth M. Y. Leung, Maurice Wheelan, Catherine Willet & Gerald T. Ankley - 2018 - Science of the Total Environment 628:1542-1556.
    The Adverse Outcome Pathway (AOP) concept is a knowledge assembly and communication tool to facilitate the transparent translation of mechanistic information into outcomes meaningful to the regulatory assessment of chemicals. The AOP framework and associated knowledgebases (KBs) have received significant attention and use in the regulatory toxicology community. However, it is increasingly apparent that the potential stakeholder community for the AOP concept and AOP KBs is broader than scientists and regulators directly involved in chemical safety assessment. In this paper we (...)
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  8. The "Chemical Mechanics" of the Periodic Table.Arnout Ceulemans & Pieter Thyssen - 2018 - In Eric Scerri & Guillermo Restrepo (eds.), Mendeleev to Oganesson: A Multidisciplinary Perspective on the Periodic Table. New York, NY, USA: pp. 104-121.
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  9. 'Atomic Mechanism of the Re and Ru Strengthening Effect on the ?-?' Interface of Ni-Based Single-Crystal Superalloys: A First-Principles Study.K. Chen, L. Zhao & John Tse - 2003 - Philosophical Magazine 83 (14):1685-1698.
    A possible atomic mechanism underlying the Re- and Ru-induced strengthening effects on the n - n ' interface in Ni-based single-crystal superalloys has been investigated using the DMol3 molecular orbital package based on density functional theory. The calculation of bonding properties has been performed on a cluster designed to model Re and Ru strengthening effects within the interface. The stronger Re--Ni bonds are formed mainly as a result of d- hybridization, while the Ni--Ni bonding become weaker accompanying the Re substitution. (...)
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  10. Phyto-Assessment of Soil Heavy Metal Accumulation in Tropical Grasses.N. G. Chuck - 2016 - Journal of Animal and Plant Science 26 (3):686-696.
    Tropical grasses are fast growing and often used for phytoremediation. Three different types of tropical grasses: Vetiver (V. zizanoides), Imperata (I. cylindrical) and Pennisetum (P. purpureum) tested in different growth media of spiked heavy metal contents under the glasshouse environment of RimbaIlmu for 60-day. The growth performance, metals tolerance and phyto-assessment of cadmium (Cd), lead (Pb), zinc (Zn) and copper (Cu) in shoots and roots were assessed using flame atomic absorption spectrometry (FAAS).Tolerance index (TI), translocation factor (TF), biological accumulation coefficient (...)
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  11. Adding Sn on the Performance of Amorphous Brazing Fillers Applied to Brazing TA2 and Q235.Jie Cui - 2014 - JSEMAT 4:342-347.
    Amorphous filler Ti-Zr-Cu-Ni with better performance and higher melting point than the α → β phase transition temperature 882.5°C of TA2, is appropriate for joining TC and TB titanium alloys but not for TA titanium alloys, with which the ductility of the joined base metal TA2 gets down. In this paper, Sn is added into Ti-Zr-Cu-Ni filler to reduce its melting temperature then to satisfy the joining temperature requirement, and the effects of the content of Sn on the microstructure of (...)
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  12. The Place of the History of Chemistry in the Teaching and Learning of Chemistry.Kevin C. de Berg - 2014 - In Michael R. Matthews (ed.), International Handbook of Research in History, Philosophy and Science Teaching. Springer. pp. 317-341.
    To those of us who are sold on history, it may seem non-controversial to suggest that the learning and teaching of chemistry should give cognisance to the historical development of the subject. However, this suggestion is proving controversial amongst some in the chemistry profession. For example, in the October 2010 edition of Chemistry in Australia, Rami Ibo takes issue with the emphasis on the history of science in the HSC chemistry curriculum (Year 12) in New South Wales. He studied chemistry, (...)
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  13. Should the Historical Star-System in Chemical Education Be Replaced? [REVIEW]Joseph E. Earley - 2017 - Science & Education 26 (7-9):1075-1078.
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  14. Philosophy of Chemistry in Chemical Education: Recent Trends and Future Directions.Sibel Erduran & Ebru Z. Mugaloglu - 2014 - In Michael R. Matthews (ed.), International Handbook of Research in History, Philosophy and Science Teaching. Springer. pp. 287-315.
    In this chapter, we review recent trends in the philosophy of chemistry and its applications in chemical education. Chemistry has maintained quite a peripheral existence in the philosophy of science for a long time, thus evading focused attention and critical analysis. However, since the 1990s an increasing number of books, journals, conferences and associations focused on philosophy of chemistry highlighting the contributions of chemistry to philosophy of science (Bhushan and Rosenfeld, Of minds and molecules: new philosophical perspectives on chemistry. Oxford (...)
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  15. Detecting Zinc Absorption in Contaminated Soils with Tree Species.Seyed Armin Hashemi & Alireza Hosseinzadeh - 2015 - Transactions of the Royal Society of South Africa 70 (2):145-148.
    Phytoremediation is the technology of using plants for decontamination of heavy metals and their accumulation in the different tissues and organs of plants. The contamination resulting from heavy metals is of great significance due to its sustainability in the environment. The absorption of zinc in contaminated soils was studied using one-year Arizona cypress seedlings, which were placed in vases. After the passage of each 55-day time period from the growth of the seedlings, the shoots (leaves and stem), roots and soil (...)
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  16. 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 (...)
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  17. A Simple Phylogenetic Remark About Certain Human Blood Pressure Values.Giuseppe Iurato - 2015 - Journal of Biochemistry International 2 (4):162-165.
    In this brief note, we wish to put forward an evolutionary biopsychology hypothesis on some features of the physiological phenomenon of human blood pressure. A possible conclusion springing out from this note, is the identification of a phylogenetic recurrence along the epi-ontogenetic evolution of human being.
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  18. G. N. Lewis's Views On Bond Theory 1900–16.Robert Kohler - 1975 - British Journal for the History of Science 8 (3):233-239.
    In a recent paper on the origin of G. N. Lewis's concept of the shared electron pair bond, I argued that the sources of Lewis's novel conception were certain ideas of J. J. Thomson and Alfred Parson. Yet the only influence that Lewis explicitly acknowledged was neither of these, but Alfred Werner's. The following statement appears in his book, Valence :I still have poignant remembrance of the distress which I and many others suffered some thirty years ago in a class (...)
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  19. Preparation and Characterization of Chitosan-Insulin-Tripolyphosphate Membrane for Controlled Drug Release: Effect of Cross Linking Agent.Holanda Adriana Lima - 2014 - JBNB 5:Holanda Adriana Lima.
    The term Diabetes Mellitus (DM) comprises a group of metabolic disorders characterized by chronic hyperglycemia resulting from defects in the secretion and/or action of insulin. The Insulin therapy constitutes the preferred treatment for DM, consisting of daily subcutaneous insulin injections to control blood glucose levels. The chitosan studied for Biomedicine is a biomaterial that can be used for controlled release of drugs whose release rate can be controlled by Sodium Tripolyphosphate (TPP), which is an ionic cross linker of the chitosan. (...)
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  20. Heavy Metals Contamination in Greenhouse Soils and Vegetables in Guanzhong, China.Ling Liu - 2014 - Journal of Encapsulation and Adsorption Sciences 4:80-88.
    This study used a flame atomic absorption spectrometer (FAAS) and atomic fluorescence spec-trophotometer (AFS) to detect the concentrations of chromium (Cr), cadmium (Cd), lead (Pb), hy-drargyrum (Hg) and arsenic (As) in soils and three genotypes of vegetables in greenhouse, as well as analyzed the physical and chemical properties of soils, including soil pH, soil organic matter (OM), basic nutrients, electrical conductivity (EC) and cation exchange capacity (CEC) in Guan- zhong areas, Shaanxi province, China. The results showed that comparing to subsoil, (...)
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  21. Configuración de la innovación docente y la aplicación del uso de las TIC en la enseñanza superior.Obdulio Italo Banda Marroquín - manuscript
    Las instituciones de educación superior, a fin de adaptarse a los requerimientos del entorno social, deben de aunar las tecnologías de la información y de la comunicación, en los procesos formativos.
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  22. Global Optimization Studies on the 1-D Phase Problem.Jim Marsh, Martin Zwick & Byrne Lovell - 1996 - Int. J. Of General Systems 25 (1):47-59.
    The Genetic Algorithm (GA) and Simulated Annealing (SA), two techniques for global optimization, were applied to a reduced (simplified) form of the phase problem (RPP) in computational crystallography. Results were compared with those of "enhanced pair flipping" (EPF), a more elaborate problem-specific algorithm incorporating local and global searches. Not surprisingly, EPF did better than the GA or SA approaches, but the existence of GA and SA techniques more advanced than those used in this study suggest that these techniques still hold (...)
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  23. Analytical Solutions of Nonlinear Differential Equations in the Mathematical Model for Inactivation of Nitric Oxide by Rat Cerebellar Slices.Narayanan Mehala - 2014 - AJAC 5: 908-919.
    A mathematical model for the inactivation of nitric oxide by rat cerebellar slices under non-steady state condition has been analyzed. This diffusion-inactivation model was used to estimate the kinetics of NO consumption by the rat cerebellar slices. He’s Homotopy perturbation method is used to solve the first order nonlinear differential equations which describe the concentrations given by net of diffusion and inactivation by the slices. Analytical expressions for the concentration of nitric oxide have been derived for all values of parameters. (...)
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  24. Publishers_Save Authors' Time.Khaled Moustafa - 2017 - Science and Engineering Ethics (naa):1-2.
    Scientific journals ask authors to put their manuscripts, at the submission stage, sometimes in a complex style and a specific pagination format that are time consuming while it is unclear yet that the submitted manuscripts will be accepted. In the case of rejections, authors need to submit to another journal most likely with a different style and formatting that require additional work and time. To save authors’ time, publishers should allow authors to submit their manuscripts in any format and to (...)
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  25. Phyto-Evaluation of Cd-Pb Using Tropical Plants in Soil-Leachate Conditions.Chuck Chuan Ng - 2018 - Air, Soil and Water Research 11 (1):1-9.
    Sources of soil contamination can exist in various types of conditions including in the form of semifluids. In this study, 3 different types of tropical plants, Acacia (Acacia mangium Willd), Mucuna (Mucuna bracteata DC. ex Kurz) and Vetiver (Vetiveria zizanioides L. Nash), were tested under different levels of soil-leachate conditions. The relative growth rate, metal tolerance, and phytoassessment of cadmium (Cd) and lead (Pb) accumulation in the roots and shoots were determined using flame atomic absorption spectrometry. Tolerance index, translocation factor, (...)
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  26. Tolerance Threshold and Phyto-Assessment of Cadmium and Lead in Vetiver Grass, Vetiveria Zizanioides (Linn.) Nash.Chuck Chuan Ng - 2017 - Chiang Mai Journal of Science 44 (4):1367-1378.
    Various types of plant species have been extensively used for heavy metals phyto-remediation without taking into consideration its tolerance threshold. In this study, Vetiver grass, Vetiveria zizanioides (Linn.) Nash was evaluated under five different sets of contaminated spiked cadmium (5Cd, 10Cd, 50Cd, 100Cd and 150Cd mg/kg) and lead (50Pb, 100Pb, 200Pb, 400Pb and 800Pb mg/kg) concentration levels in soil. The growth performance, metal tolerance and phyto-assessment of Cd and Pb in the roots and tillers were assessed using flame atomic absorption (...)
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  27. Effects of Different Soil Amendments on Mixed Heavy Metals Contamination in Vetiver Grass.Chuck Chuan Ng - 2016 - Bulletin of Environmental Contamination and Toxicology 97:695-701.
    Three different types of low cost soil amendments, namely, EDTA, elemental S and N-fertilizer, were investigated with Vetiver grass, Vetiveria zizanioides (Linn.) Nash growing under highly mixed Cd–Pb contamination conditions. A significant increase (p < 0.05) in Cd and Pb accumulation were recorded in the shoots of all EDTA and N-fertilizer assisted treatments. The accumulation of Cd in 25 mmol EDTA/kg soil and 300 mmol N/kg soil showed relatively higher translocation factor (1.72 and 2.15) and percentage metal efficacy (63.25 % (...)
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  28. Heavy Metals Phyto-Assessment in Commonly Grown Vegetables: Water Spinach (I. Aquatica) and Okra (A. Esculentus).Chuck Chuan Ng - 2016 - Springerplus 1 (5):469.
    The growth response, metal tolerance and phytoaccumulation properties of water spinach (Ipomoea aquatica) and okra (Abelmoschus esculentus) were assessed under different contaminated spiked metals: control, 50 mg Pb/kg soil, 50 mg Zn/kg soil and 50 mg Cu/kg soil. The availability of Pb, Zn and Cu metals in both soil and plants were detected using flame atomic absorption spectrometry. The concentration and accumulation of heavy metals from soil to roots and shoots (edible parts) were evaluated in terms of translocation factor, accumulation (...)
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  29. Phyto-Assessment of Soil Heavy Metal Accumulation in Tropical Grasses.Chuck Chuan Ng - 2016 - Journal of Animal and Plant Science 26 (3):686-696.
    Tropical grasses are fast growing and often used for phytoremediation. Three different types of tropical grasses: Vetiver (V. zizanoides), Imperata (I. cylindrical) and Pennisetum (P. purpureum) tested in different growth media of spiked heavy metal contents under the glasshouse environment of RimbaIlmu for 60-day. The growth performance, metals tolerance and phyto-assessment of cadmium (Cd), lead (Pb), zinc (Zn) and copper (Cu) in shoots and roots were assessed using flame atomic absorption spectrometry (FAAS).Tolerance index (TI), translocation factor (TF), biological accumulation coefficient (...)
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  30. Biodegradable Guar Gum Nanoparticles as Carrier for Tamoxifen Citrate in Treatment of Breast Cancer.Jayanta K. Sarmah - 2014 - JBNB 5:220-228.
    We prepared, characterized and studied the biodistribution of tamoxifen citrate (TMX) loaded cross-linked guar gum (GG) nanoparticles (NPs). NPs were prepared via a single step emulsion process and particle size evaluated. The extent of tissue distribution and retention following oral administration of TMX loaded GG NPs and TMX tablet in female albino mice was analyzed over a period of 48 hours. Till 48 hours, the particles remained detectable in both mammary and ovary tissue (estrogen receptors). Uptake and retention of TMX (...)
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  31. Shattered Symmetry: Group Theory From the Eightfold Way to the Periodic Table.Pieter Thyssen & Arnout Ceulemans - 2017 - New York, NY, USA: Oxford University Press.
    The standard model of subatomic particles and the periodic table of the atoms have the common goal to bring order in the bewildering chaos of the constituents of matter. Their success relies on the presence of fundamental symmetries in their core. The purpose of the book is to share the admiration for the power and the beauty of these symmetries. The reader is taken on a journey from the basic geometric symmetry group of a circle to the sublime dynamic symmetries (...)
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