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  • CO2
  • thema EDItEUR::P Mathematics and Science::PD Science: general issues
  • Springer  (108)
  • CRC Press  (4)
  • 1
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    Chapter 12 The Genesis of Behaviorally Modern Homo sapiens (2022)
    Taylor & Francis | CRC Press
    Details
    Publication Date: 2024-04-02
    Description: This book is a “big history” of the evidence regarding how we came to be. It briefly explores philosophical thought and how our past might affect our future. The text summarizes different perspectives, including the strengths and weaknesses of each. The genesis of our planet is explored, especially the circumstances that must exist for complex life to arise. This brief journey highlights the history of life, the emergence of simple lifeforms, and the evolution of complex creatures, including humans. The book concludes with a discussion of why other humanoids went extinct while our species achieved dominance. The author speculates on potentialities awaiting humankind and our planet.
    Keywords: Big History, Emergent Conditions, Evolution of Complexity, Origin of Life ; thema EDItEUR::N History and Archaeology::NH History ; thema EDItEUR::W Lifestyle, Hobbies and Leisure::WN Nature and the natural world: general interest ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment::RNC Applied ecology ; thema EDItEUR::P Mathematics and Science::PD Science: general issues ; thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences::RBG Geology, geomorphology and the lithosphere ; thema EDItEUR::P Mathematics and Science::PH Physics::PHV Applied physics::PHVG Geophysics ; thema EDItEUR::P Mathematics and Science::PD Science: general issues::PDX History of science ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PSA Life sciences: general issues::PSAJ Evolution
    Language: English
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  • 2
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    Stem Cell Oncology (2021)
    Taylor & Francis | CRC Press
    Details
    Publication Date: 2024-04-04
    Description: Stem cell research is one of the fascinating areas of contemporary biology, but, as with many expanding fields of scientific inquiry, research on stem cells raises scientific questions as rapidly as it generates discoveries. Research on stem cell treatment continues to advance knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms. The most important potential application of human stem cells is the generation of cells and tissues that could be used for cell-based therapies, especially oncology. The Faculty of Medicine, Universitas Sumatera Utara, collaborated with the center of excellence and innovation (Pusat Unggulan Inovasi /PUI). The Stem Cell center of the Universitas Sumatera Utara (USU) organized an International Conference. The International Stem Cell and Oncology Conference (ISCOC) 2017 was an comprehensive academic conference in the field of stem cell and oncology research and also tropical medicine and related scientific topics. We expect this conference will benefit academics and practitioners in the field of health sciences in Indonesia. During the two day conference, researchers presented the most recent discoveries in stem cell and oncology and also general medical topics, and served as well in establishing networking for joint researchers and collaboration among participants. The editors and the scientific committee would like to thank the participants and express their gratitude to Faculty of Medicine of the Universitas Sumatera Utara for their support to ISCOC 2017. Lastly, we are most indebted for the generous support given by Universitas Sumatera Utara, Medan, Sumatera Utara, Indonesia.
    Keywords: oncology ; stem cell ; research ; biology ; conference ; thema EDItEUR::P Mathematics and Science::PD Science: general issues ; thema EDItEUR::P Mathematics and Science::PD Science: general issues
    Language: English
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  • 3
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    A Most Improbable Story (2022)
    Taylor & Francis | CRC Press
    Details
    Publication Date: 2024-04-02
    Description: This book is a “big history” of the evidence regarding how we came to be. It briefly explores philosophical thought and how our past might affect our future. The text summarizes different perspectives, including the strengths and weaknesses of each. The genesis of our planet is explored, especially the circumstances that must exist for complex life to arise. This brief journey highlights the history of life, the emergence of simple lifeforms, and the evolution of complex creatures, including humans. The book concludes with a discussion of why other humanoids went extinct while our species achieved dominance. The author speculates on potentialities awaiting humankind and our planet.
    Keywords: Big History, Emergent Conditions, Evolution of Complexity, Origin of Life ; thema EDItEUR::N History and Archaeology::NH History ; thema EDItEUR::W Lifestyle, Hobbies and Leisure::WN Nature and the natural world: general interest ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment::RNC Applied ecology ; thema EDItEUR::P Mathematics and Science::PD Science: general issues ; thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RB Earth sciences::RBG Geology, geomorphology and the lithosphere ; thema EDItEUR::P Mathematics and Science::PH Physics::PHV Applied physics::PHVG Geophysics ; thema EDItEUR::P Mathematics and Science::PD Science: general issues::PDX History of science ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PSA Life sciences: general issues::PSAJ Evolution
    Language: English
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  • 4
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    Chapter 21 Archaea (2022)
    Taylor & Francis | Practical Handbook of Microbiology | CRC Press
    Details
    Publication Date: 2024-04-04
    Description: Practical Handbook of Microbiology, 4th edition provides basic, clear and concise knowledge and practical information about working with microorganisms. Useful to anyone interested in microbes, the book is intended to especially benefit four groups: trained microbiologists working within one specific area of microbiology; people with training in other disciplines, and use microorganisms as a tool or "chemical reagent"; business people evaluating investments in microbiology focused companies; and an emerging group, people in occupations and trades that might have limited training in microbiology, but who require specific practical information.
    Keywords: Antisepsis, Bacteria, Bacteriophage, Business of Microbiology, Disinfection, Fungi, Microbiology, Microbiology procedures, parasites, sterilization, virus ; thema EDItEUR::P Mathematics and Science::PD Science: general issues ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PSG Microbiology (non-medical) ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PSD Molecular biology ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment::RNC Applied ecology::RNCB Biodiversity
    Language: English
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  • 5
    Electronic Resource
    Electronic Resource
    Concentrated electrolyte solutions at high temperatures and pressures (1973)
    Springer
    Journal of solution chemistry 2 (1973), S. 339-356 
    Details
    ISSN: 1572-8927
    Keywords: High temperature ; high pressure ; static dielectric constant ; infrared and Raman spectra ; critical point ; water ; aqueous solutions ; ammonia ; HDO ; Xe ; CO2 ; NH4Cl ; Ni(II) complexes ; Cu(II) complexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A survey is given of recent experimental results obtained from high-temperature, high-pressure investigations with water, aqueous solutions, and ionic fluids. Data on the static dielectric constant of water to 550°C and 5 kbar are given and discussed with respect to their relation to water structure. Infrared and Raman spectra of HDO in pure water have been obtained to 400°C and 4 kbar, which give information on hydrogen bonding. Xe−H2O and CO2−H2O mixtures were investigated in the infrared. Ni(II) and Cu(II) complexes were investigated by absorption spectroscopy in aqueous solutions of high chloride content to 350°C and 2–6 kbar. The gas-liquid critical point of ammonium chloride was found at 880°C and 1635 bars. This fluid appears to be predominantly ionic even in the critical region. The possibility of converting pure polar fluids such as ammonia and water into concentrated ionic solutions by self-ionization at very high pressures is mentioned.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00651979
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  • 6
    Electronic Resource
    Electronic Resource
    Promotion through gas phase induced surface segregation: methanol synthesis from CO, CO2 and H2 over Ni/Cu(100) (1998)
    Springer
    Catalysis letters 54 (1998), S. 171-176 
    Details
    ISSN: 1572-879X
    Keywords: promotion ; methanol synthesis ; segregation ; Ni ; Cu(100) ; CO ; CO2 ; H2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract We have studied the rate of methanol formation over Cu(100) and Ni/Cu(100) from various mixtures of CO, CO2 and H2. It is found that the presence of submonolayer quantities of Ni leads to a strong increase in the rate of methanol formation from mixtures containing all three components whereas Ni does not influence the rate from mixtures of CO2/H2 and CO/H2, respectively. The influence of the partial pressures of CO and CO2 on the rate indicates that the role of CO is strictly promoting. From temperature-programmed desorption spectra it follows that the surface concentration of Ni depends strongly on the partial pressure of CO. In this way the increase in reactivity is interpreted as a CO-induced structural promotion introduced by the stronger bonding of CO to Ni as compared to Cu. It is suggested that this type of promotional behavior will be of general importance in existent catalysts and perhaps even more relevant in the development of new or improved bimetallic catalysts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019033517855
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  • 7
    Electronic Resource
    Electronic Resource
    Regeneration behaviors of Fe/Si‐2 and Fe–Mn/Si‐2 catalysts for C2H6 dehydrogenation with CO2 to C2H4 (1999)
    Springer
    Catalysis letters 62 (1999), S. 185-189 
    Details
    ISSN: 1572-879X
    Keywords: C2H6 ; CO2 ; Fe/Si‐2 catalyst ; regeneration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The catalytic performance of Fe/Si‐2 and Fe–Mn/Si‐2 catalysts for conversion of C2H6 with CO2 to C2H4 was examined in a continuous‐flow and fixed‐bed reactor. The results show that the Fe–Mn/Si‐2 catalyst exhibits much better reaction activity and selectivity to C2H4 than those of the Fe/Si‐2 catalyst. Furthermore, the coking–decoking behaviors of these catalysts were studied through TG. The catalytic performances of the catalysts after regeneration for conversion of C2H6 or dilute C2H6 in FCC off‐gas with CO2 to C2H4 were also examined. The results show that both activity and selectivity of the Fe–Mn/Si‐2 catalyst after regeneration reached the same level as those of the fresh catalyst, whereas it is difficult for the Fe/Si‐2 catalyst to refresh its reaction behavior after regeneration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019015509871
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  • 8
    Electronic Resource
    Electronic Resource
    Oxidative dehydrogenation of ethane by carbon dioxide over sulfate‐modified Cr2O3/SiO2 catalysts (1999)
    Springer
    Catalysis letters 63 (1999), S. 59-64 
    Details
    ISSN: 1572-879X
    Keywords: ethane dehydrogenation ; ethylene ; CO2 ; Cr2O3 ; sulfated silica
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The oxidative dehydrogenation of ethane into ethylene by carbon dioxide over unsupported Cr2O3, Cr2O3/SiO2 and a series of Cr2O3/SiO2 catalysts modified by sulfate was investigated. The results show that Cr2O3/SiO2 is an effective catalyst for dehydrogenation of ethane and CO2 in the feed promotes the catalytic activity. Sulfation of silica will influence the catalytic behavior of Cr2O3/SiO2 in dehydrogenation of ethane with carbon dioxide depending on the amount of sulfate. Cr2O3/6 wt% SO 4 2- –SiO2 catalysts exhibit an excellent performance for this reaction, giving an ethylene yield of 55% at 67% ethane conversion at 650°C. Characterizations indicate that addition of sulfate changes the bulk and surface properties of Cr2O3/SiO2, promoting the reduction of Cr6+ to Cr3+ and favoring the catalytic conversion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019084030344
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  • 9
    Electronic Resource
    Electronic Resource
    R&D activities in Japan on methanol synthesis from CO2 and H2 (1998)
    Springer
    Catalysis surveys from Japan 2 (1998), S. 175-184 
    Details
    ISSN: 1572-8803
    Keywords: methanol synthesis ; CO2 ; hydrogenation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Methanol synthesis from CO2 and H2 can be a useful process for conversion and transportation of hydrogen energy derived from non-fossil energies. More than ten research groups in Japan have extensively investigated the methanol synthesis from both academic and practical points of view. Recent R&D activities in Japan for developing high performance catalysts, for elucidating the reaction mechanism and also for operating a bench scale plant have been reviewed in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019082525994
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  • 10
    Electronic Resource
    Electronic Resource
    Role of lattice oxygen during CO2 reforming of methane over NiO/MgO solid solutions (1998)
    Springer
    Catalysis letters 51 (1998), S. 183-185 
    Details
    ISSN: 1572-879X
    Keywords: CH4 ; CO2 ; Ni ; MgO ; lattice oxygen ; transient response
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The CO2 reforming of methane over reduced NiO/MgO solid solution catalysts was studied at 800°C by a novel transient method, which couples a broadened pulse of CH4/CO2 with a step change to the carrier gas and/or with a sharp isotopic pulse of either 18O4, CO18 2 or 13CO16 2. The response curves indicated that two kinds of oxygen were formed over the catalysts during reaction: adsorbed oxygen which reacts fast with C species and lattice oxygen which reacts more slowly with C species. One concludes that a redox cycle of lattice oxygen formation through the oxidation of Ni and its reaction with C species takes place on the catalyst surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019030311127
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