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  • 1
    Online Resource
    Online Resource
    Cham :Springer International Publishing :
    Keywords: Microbiology. ; Plant physiology. ; Agriculture. ; Microbiology. ; Plant Physiology. ; Agriculture.
    Description / Table of Contents: Chapter 1: Introduction to Plant Growth-Promoting Bacteria -- Chapter 2 Microbiomes and Endophytes -- Chapter 3: Some Techniques Used to Study Plant-Microbe Interactions -- Chapter 4: Resource Acquisition -- Chapter 5: Modulation of Phytohormone Levels -- Chapter 6: Biocontrol of Bacteria and Fungi -- Chapter 7: Biocontrol of Insects and Nematodes -- Chapter 8: Environmental Interactions -- Chapter 9: Mycorrhizal-Plant Interactions -- Chapter 10: Phytoremediation -- Chapter 11: Issues Regarding the Use of PGPB.
    Abstract: This book provides a straightforward and easy-to-understand overview of beneficial plant-bacterial interactions. It features a wealth of unique illustrations to clarify the text, and each chapter includes study questions that highlight the important points, as well as references to key experiments. Since the publication of the first edition of Beneficial Plant-Bacterial Interactions, in 2015, there has been an abundance of new discoveries in this area, and in recent years, scientists around the globe have begun to develop a relatively detailed understanding of many of the mechanisms used by bacteria that facilitate plant growth and development. This knowledge is gradually becoming an integral component of modern agricultural practice, with more and more plant growth-promoting bacterial strains being commercialized and used successfully in countries throughout the world. In addition, as the world’s population continues to grow, the pressure for increased food production will intensify, while at the same time, environmental concerns, mean that environmentally friendly methods of food production will need to replace many traditional agricultural practices such as the use of potentially dangerous chemicals. The book, intended for students, explores the fundamentals of this new paradigm in agriculture, horticulture, and environmental cleanup.
    Type of Medium: Online Resource
    Pages: XIV, 383 p. 199 illus., 98 illus. in color. , online resource.
    Edition: 2nd ed. 2020.
    ISBN: 9783030443689
    DDC: 579
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 14 (1989), S. 73-76 
    ISSN: 0308-0501
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Publication Date: 2017-04-04
    Description: Isotopic, major and trace element composition studies for the crater lake, the Soap Pool and thermal springs at El Chichón volcano in November 2006-October 2007 confirm the complex relationship between annual rainfall distribution and crater lake volume and chemistry. In 2001, 2004 and 2007 high volume high-Cl lake may be related to reactivation of high discharge (〉10 kg/s) saline near-neutral water from the Soap Pool boiling springs into the lake, a few months (~January) after the end of the rainy season (June-October). The peak lake volume occurred in March 2007 (~6 x 105 m3). Agua Tibia 2 thermal springs discharge near the foot of the SW dome but their chemistry suggests a lower temperature regime, an enhanced water-rock interaction and basement contribution (evaporites and carbonates), anhydrite leaching from the 1982 pyroclastic deposits, rather than dome activity. New suggestions of crater lake seepage are evidenced by the Agua Caliente thermal springs. Existing models on the “crater lake-Soap Pool spring” and the deep hydrothermal system are discussed. Chemical changes in the deep geothermal aquifer feeding the thermal springs may predict dome rise. Future volcanic surveillance should focus on spring chemistry variations, as well as crater lake monitoring.
    Description: Published
    Description: 55-72
    Description: 2.4. TTC - Laboratori di geochimica dei fluidi
    Description: N/A or not JCR
    Description: open
    Keywords: fluid geochemistry ; El Chichón ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 96 (1992), S. 1355-1361 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 5809-5811 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: CeSb and CeTe show giant magneto-optic Kerr rotations and also have extremely unusual magnetic ordering properties. CeSb shows peculiar and extraordinarily anisotropic antiferromagnetic behavior; while CeTe shows an ordered moment and TN only 15% that of CeSb, indicative of incipient heavy-fermion behavior. This has been understood in an absolute theory of orbitally driven correlated f-electron magnetism. We seek to understand the giant magneto-optic properties including the role, if any, of explicit correlation effects not captured by an exchange-correlation potential. To this end we have performed full potential linearized muffin-tin orbital polarized band calculations for the optical conductivity tensor, first only spin polarized (orbital polarization only via spin-orbit coupling) and second with explicit orbital polarization. As expected, for CeSb and CeTe the spin-polarized calculation gave the diagonal, ordinary optical, conductivity in good agreement with experiment; but the off-diagonal, magneto-optic, behavior was in poor agreement; and the ordered moment was much different from experiment. For the spin-and-orbitally polarized calculation, the ordered moment agreed reasonably well with experiment for CeSb but very poorly for CeTe. However, the magneto-optic behavior remained distinctly different from experiment for both materials. Thus as anticipated, explicit correlation effects associated with differing discrete f-configuration energies appear to be a central aspect of giant magneto-optic behavior.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Cerium and light actinide materials have unusual properties, including suppressed crystal-field splitting and highly anisotropic ordered magnetism, that can be understood on the basis of the Coulomb interaction between partially delocalized f electrons and the non-f-band electrons. In setting the absolute scale of interaction energy for materially predictive theory, it is crucial to take account of all consequences of the Coulomb interaction which contribute to the two-ion interaction. These include both the hybridization-induced effect (i.e., band-f mixing effects treated by a one-electron potential) and the RKKY-type effect (arising from the band-f exchange interaction) and the cross effect. The RKKY interaction, when treated fully, provides both isotropic and anisotropic contributions to the two-ion interaction. We found the anisotropic part is similar in its angular dependence and range dependence to the hybridization-induced effects. Therefore, the qualitative anisotropic nature of observable magnetic effects is quite similar to that caused by hybridization-induced effects by themselves, but the scale of energy is changed. Our results for CeBi and CeSb are in agreement with both the qualitative nature of the magnetic ordering and crystal-field dressing and with the absolute scale of energy as shown by the Néel temperature.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 5433-5435 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have been developing an understanding of the role of correlation (configuration fluctuation) effects on the giant magneto-optic properties of a class of unusual highly anisotropic, magnetically ordered, highly correlated f-electron materials. While orbital polarization in the band calculations improved the ordered moment agreement with experiments for the less correlated materials, the magneto-optic of calculation and experiment remained distinctly different. Moreover, the more highly correlated the material, the worse the agreement of the two quantities. We have now done similar calculations within local-density approximation with gradient (nonlocal) corrections included. While the nonlocal effects introduced by the generalized gradient approximation significantly modify the calculated equilibrium moment and magneto-optic behavior, comparison with experiment reinforces our earlier conclusion that band theory, which treats fluctuations in a time-averaged sense, is inadequate for capturing key effects of interconfigurational fluctuations in correlated-electron systems. Explicit treatment of correlation effects analogous to those we have already reported for the magnetically ordered moments and ordering temperature is necessary for the magneto-optic behavior.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 6083-6085 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Cerium and light actinide compounds show widely varied f-electron phenomena. The f-electron behavior in these systems ranges from well-localized to heavy-fermion-like or itinerant. Over a period of time we have been developing techniques to evaluate the fundamental interactions for correlated f-electron systems, such as band-f hybridization and band-f exchange, and trying to understand their properties and trends in the evolution of the properties between different isostructural cerium and light actinide compounds on the basis of absolute first principle calculations. Previous calculations are successful in explaining a variety of f-electron properties in cerium monopnictides and monochalcogenides. When going from localized f-electron cerium systems to more itinerant f-electron uranium systems, the hybridization between f- and non-f-conduction electrons is strongly enhanced by the self banding of the f states. We develop a scheme to evaluate the hybridization from the starting point that the f states are viewed as bands. We apply this scheme to uranium monopnictides and monochalcogenides to calculate their magnetic ordering.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 5409-5411 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An important characteristic of correlated f-electron systems is their dual nature of having both degrees of localization and itinerancy. Their magnetic behavior evolves with the amount of delocalization they have. Rare-earth monopnictides are on the localized side, with weak delocalization related to hybridization. Uranium monopnictides are on the itinerant side, but localization cannot be fully neglected. To explore the problem from both the localized and the itinerant sides, we have been developing techniques to calculate the evolving properties of f-electron systems on a first principle ab initio basis. This involves: electronic structure calculations; calculating band-f hybridization; calculating Coulomb exchange interaction; and calculating magnetic ordering. In this work, we applied these techniques to evaluate the evolution of f-electron behavior from heavy rare earths to light rare earths to actinides. We will discuss how the degree of localization of the f electrons affects their hybridization and Coulomb exchange interaction with non-f band electrons, and how this influences the two-ion exchange interaction and magnetic ordering. Our calculation is for XSb where X=Ce, Nd, Tb, Er, Yb, U and for CeTe and UTe.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 94 (1991), S. 250-261 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: NH stretching overtone and combination states in HN3 X˜ 1A' were excited by IR–visible double resonance pumping and by direct overtone pumping in the range 6ν1 (17 670 cm−1) to 7ν1 (20 070 cm−1). NH fragments in the a 1Δ and X 3Σ− states were detected by laser induced fluorescence with sub-Doppler resolution to determine branching ratios, correlated fragment rotational state and kinetic energy distributions, and fragment vector correlations. The spin-forbidden triplet channel was accessible to all states excited, while the threshold for the singlet channel was determined to lie in the range 18 190 to 18 755 cm−1. The measured energy release places limits on the HN–NN bond energy, and the heights of barriers to reaction. The barrier in the singlet exit channel is at least 540 cm−1. The singlet channel accessed by 7ν1 dissociation is characterized by a Boltzmann-like NH rotational distribution (〈J NH〉≈3.5), highly excited N2 rotations (〈JN2〉 ≥ 20), and total translational energy release peaked away from zero (〈ET〉≈1350 cm−1). Vector correlations and Λ-doublet propensities indicate that nonplanar dissociation processes influence the NH rotations, but become less important for higher NH rotational states. The principal correlations are a strong positive recoil anisotropy (β≈0.6), a weak positive v–J correlation (βvJ≈0.17), and a JNH-dependent Λ-doublet propensity. A model using parent vibrational motion projected onto fragment rotation is suggested to explain these observations. The triplet channel exhibits similar NH and N2 rotational state distributions, with most of the available energy (substantially greater than in the singlet channel) appearing as fragment kinetic energy.
    Type of Medium: Electronic Resource
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