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  • 1
    Online Resource
    Online Resource
    New York, NY :Springer,
    Keywords: Astronomy -- Amateurs' manuals. ; Electronic books.
    Description / Table of Contents: This book covers imaging those areas of the sky that lie south of the celestial equator. It introduces all the necessary techniques and includes a section on the top 50 southern objects to image.
    Type of Medium: Online Resource
    Pages: 1 online resource (425 pages)
    Edition: 1st ed.
    ISBN: 9781461447504
    Series Statement: The Patrick Moore Practical Astronomy Series
    DDC: 523.1
    Language: English
    Note: Intro -- Imaging the Southern Sky -- Foreword -- Preface -- Acknowledgements -- Contents -- Part I: The Objects of the Southern Sky -- Chapter One: The Hunter and His Dog -- Barnard's Loop - Sh2 - 276 -- Technical Information - Fig.  1.1 -- Great Orion Nebula - M 42 & -- 43 (NGC 1976) -- Technical Information - Fig.  1.2 top image -- Technical Information - Fig.  1.2 bottom image -- Horsehead and Flame Nebulae - IC 434 (Barnard 33) and NGC 2024 -- Technical Information - Fig.  1.3 -- Technical Information - Fig.  1.4 -- Running Man Nebula - NGC 1973-5-7 -- Technical Information - Fig.  1.5 -- M 79 - NGC 1904 -- Technical Information - Fig.  1.6 -- Witch Head Nebula - IC 2118 -- Technical Information - Fig.  1.7 -- Thor's Helmet - NGC 2359 (Gum 4) -- Technical Information - Fig.  1.8 -- Chapter Two: Vast Explosive Remnants -- Gum Nebula - Gum 12 -- Technical Information - Fig.  2.1 -- Gum 15 - RCW 32 -- Technical Information - Fig.  2.2 -- Gum 20 - RCW 36 -- Technical Information - Fig.  2.3 -- Vela Supernova Remnant -- Technical Information - Figs.  2.4 and 2.5 -- Vela SNR Reference Chart -- Crest and the Bridge -- Technical Information - Fig.  2.6 -- Twin Crescents and the Bypass -- Technical Information - Fig.  2.7 -- Highway and the Spur -- Technical Information - Fig.  2.8 -- Pencil Nebula - NGC 2736 -- Technical Information - Fig.  2.9 -- Gum 22-23 - RCW 38 -- Technical Information - Fig.  2.10 -- Spiral Flame Nebula -- Technical Information - Fig.  2.11 -- Chapter Three: The Ship of Argo -- NGC 2467 -- Technical Information - Fig.  3.1 -- NGC 3766 -- Technical Information - Fig.  3.2 -- NGC 3201 -- Technical Information - Fig.  3.3 -- Flying Jaw Nebula - NGC 2899 -- Technical Information - Fig.  3.4 -- Eight Burst Nebula - NGC 3132 -- Technical Information - Fig.  3.5 -- Toby Jug Nebula - IC 2220 -- Technical Information - Fig.  3.6. , NGC 2808 -- Technical Information - Fig.  3.7 -- M 93 - NGC 2447 -- Technical Information - Fig.  3.8 -- The Sprinter - NGC 2516 -- Technical Information - Fig.  3.9 -- RCW 58 -- Technical Information - Fig.  3.10 -- The Eta Carinae Area -- Banana Nebula - NGC 3199 -- Technical Information - Fig.  3.12 -- Whirling Dervish Nebula - NGC 3247 -- Technical Information - Fig.  3.13 -- The Pendant - NGC 3293 -- Technical Information - Fig.  3.14 -- Gabriela Mistral Nebula - NGC 3324 -- Technical Information - Fig.  3.15 -- Eta Carinae Nebula - NGC 3372 -- Technical Information - Fig.  3.16 -- The South Pillars -- Technical Information - Fig.  3.18 -- Southern Pleiades - IC 2602 -- Technical Information - Fig.  3.19 -- Black Arrow Cluster - NGC 3532 -- Technical Information - Fig.  3.20 -- Torch Bearer Nebula (NGC 3576) - and NGC 3603 -- Technical Information - Fig.  3.21 -- Running Chicken Nebula - IC 2944-48 -- Technical Information - Fig.  3.22 -- Technical Information - Fig.  3.23 -- Chapter Four: On the Serpent's Back -- NGC 2992-3 - Arp 245 -- Technical Information - Fig.  4.1 -- Sombrero Galaxy - M 104 - NGC 4594 -- Technical Information - Fig.  4.2 -- NGC 2997 -- Technical Information - Fig.  4.3 -- NGC 3621 -- Technical Information - Fig.  4.4 -- NGC 5247 -- Technical Information - Fig.  4.5 -- Antennae Galaxies - NGC 4038-39 -- Technical Information - Fig.  4.6 -- NGC 2835 -- Technical Information - Fig.  4.7 -- Cigar Galaxy - NGC 4945 -- Technical Information - Fig.  4.8 -- Centaurus A - NGC 5128 -- Technical Information - Fig.  4.9 -- Southern Pinwheel Galaxy - M 83 - NGC 5236 -- Technical Information - Fig.  4.10 -- Chapter Five: The Emu -- The Emu's Body, Neck and Head -- Technical Information - Fig.  5.1 -- The Emu Reference Chart -- Coal Sack -- Technical Information - Fig.  5.3 -- Dark Doodad Nebula - Sandqvist 149. , Technical Information - Fig.  5.4 -- Jewel Box - NGC 4755 -- Technical Information - Fig.  5.5 -- Bernes 145 -- Technical Information - Fig.  5.6 -- NGC 4372 -- Technical Information - Fig.  5.7 -- NGC 4833 -- Technical Information - Fig.  5.8 -- Omega Centauri - NGC 5139 -- Technical Information - Fig.  5.9 -- Spiral Planetary - NGC 5189 -- Technical Information - Fig.  5.10 -- NGC 5844 -- Technical Information - Fig.  5.11 -- Box Nebula - IC 4406 -- Technical Information - Fig.  5.12 -- Shapley 1 -- Technical Information - Fig.  5.13 -- RCW 86 -- Technical Information - Fig.  5.14 -- RCW 103 -- Technical Information - Fig.  5.15 -- NGC 5822 -- Technical Information - Fig.  5.16 -- NGC 5617 -- Technical Information - Fig.  5.17 -- NGC 5367 - CG 12 -- Technical Information - Fig.  5.18 -- RCW 104 -- Technical Information - Fig.  5.19 -- RCW 106 -- Technical Information - Fig.  5.20 -- NGC 6188 - 93 -- Technical Information - Fig.  5.21 -- NGC 6164 - 65 -- Technical Information - Fig.  5.22 -- Blue Straggler - NGC 6397 -- Technical Information - Fig.  5.23 -- NGC 4103 -- Technical Information - Fig.  5.24 -- RCW 94 & -- 95 -- Technical Information - Fig.  5.25 -- RCW 120 - Gum 58 -- Technical Information - Fig.  5.26 -- Coffee Bean Nebula - RCW 98 -- Technical Information - Fig.  5.27 -- Menzel 1 - Sa 2 - 123 -- Technical Information - Fig.  5.28 -- Menzel 2 - Sa 2 - 137 -- Technical Information - Fig.  5.29 -- Chapter Six: The Heart of the Galaxy -- The Galactic Bulge -- Technical Information - Fig.  6.1 -- Heart of the Galaxy Reference Chart -- Milky Way Kiwi -- Technical Information - Fig.  6.3 -- NGC 6072 -- Technical Information - Fig.  6.4 -- NGC 6337 -- Technical Information - Fig.  6.5 -- Bug Nebula - NGC 6302 -- Technical Information - Fig.  6.6 -- Prawn Nebula - IC 4628 -- Technical Information - Fig.  6.7. , Rho Ophiuchi Nebula - Barnard 47 & -- 51 -- Technical Information - Fig.  6.8 -- Cat's Paw Nebula - NGC 6334 -- Technical Information - Fig.  6.9 -- Lobster Nebula - (War & -- Peace Nebula) - NGC 6357 -- Technical Information - Fig.  6.10 top image -- Technical Information - Fig  6.10 bottom image -- Butter y Cluster - M 6 - NGC 6404 -- Technical Information - Fig.  6.11 -- M 7 - NGC 6475 -- Technical Information - Fig.  6.12 -- M 21 - NGC 6531 -- Technical Information - Fig.  6.13 -- Wild Duck Cluster - M 11 - NGC 6705 -- Technical Information - Fig.  6.14 -- Snake Nebula - Barnard 72 -- Technical Information - Fig.  6.15 -- Small Sagittarius Star Cloud - M 24 -- Technical Information - Fig.  6.16 -- Trif d Nebula - M 20 - NGC 6514 -- Technical Information - Fig.  6.17 -- Lagoon Nebula - M 8 - NGC 6523 -- Technical Information - Fig.  6.18 top image -- Technical Information - Fig.  6.18 bottom image -- Swan Nebula - Omega Nebula - M 17 - NGC 6618 -- Technical Information - Fig.  6.19 -- Eagle Nebula - M 16 - NGC 6611 & -- IC 4703 -- Technical Information - Fig.  6.20 -- The Anteater Nebula - NGC 6723 - 26/27 - 29 - IC 4812 - Bernes 157 -- Technical Information - Fig.  6.21 -- M 22 - NGC 6656 -- Technical Information - Fig.  6.22 -- M 55 - NGC 6809 -- Technical Information - Fig.  6.23 -- M 4 - NGC 6121 -- Technical Information - Fig.  6.24 -- M 25 - IC 4725 -- Technical Information - Fig.  6.25 -- Chapter Seven: The Deep South -- NGC 7098 -- Technical Information - Fig.  7.1 -- NGC 1672 -- Technical Information - Fig.  7.2 -- NGC 6744 -- Technical Information - Fig.  7.3 -- NGC 6101 -- Technical Information - Fig.  7.4 -- NGC 3195 -- Technical Information - Fig.  7.5 -- Great Peacock Globular - NGC 6752 -- Technical Information - Fig.  7.6 -- Pavo Galaxy Cluster - NGC 6872-6876 -- Technical Information - Fig.  7.7. , South Celestial Serpent - MW9 -- Technical Information - Fig.  7.8 -- 47 Tucanae - NGC 104 -- Technical Information - Fig.  7.9 -- 75 Tucanae - NGC 362 -- Technical Information - Fig.  7.10 -- Topsy Turvy Galaxy - NGC 1313 -- Technical Information - Fig.  7.11 -- Spanish Dancer - NGC 1566 -- Technical Information - Fig.  7.12 -- Cobra and the Mouse - Meat Hook Galaxy - NGC 2442 & -- ESO 59-11 -- Technical Information - Fig.  7.13 -- Chamaeleon I - IC 2631 - Ced 110-111 -- Technical Information - Fig.  7.14 -- Chamaeleon II - Haast Eagle and Possum Nebulae -- Technical Information - Fig.  7.15 -- Chamaeleon III - Talon and Thumbprint Nebulae -- Technical Information - Fig.  7.16 -- Chamaeleon III - Moa Nebula -- Technical Information - Fig.  7.17 -- Chamaeleon III - Rippling Flames Nebula -- Technical Information - Fig.  7.18 -- Chapter Eight: The Clouds of Magellan -- Small Magellanic Cloud - NGC 292 -- Technical Information - Figs.  8.1 and 8.2 -- Small Magellanic Cloud Reference Chart -- Magni cent Seven - NGC 249-261-267, Dem 132, N 25-28-30 -- Technical Information - Figs.  8.3 and 8.4 -- N 36-37 -- Technical Information - Fig.  8.5 -- NGC 456 - 60 - 65 -- Technical Information - Fig.  8.6 -- NGC 346 -- Technical Information - Fig.  8.7 -- Large Magellanic Cloud -- Technical Information - Fig.  8.8 -- LMC Reference Chart -- Bean Nebulae - N 11 - NGC 1760 - 61 - 63 - 69 - 73 -- Technical Information - Fig.  8.10 -- N 44 - NGC 1929-34-35-36-37, IC 2128, K 822 -- Technical Information - Fig.  8.11 -- N 51 - NGC 1955-68-74, N 51b-51e -- Technical Information - Fig.  8.12 -- NGC 1910 -- Technical Information - Fig.  8.13 -- Chalice Nebula - NGC 2018 - N 206 -- Technical Information - Fig.  8.14 -- Dragon's Head Nebula - NGC 2029-32-35-40, N 59c -- Technical Information - Fig.  8.15 -- N 70 -- Technical Information - Fig.  8.16. , Tulip Nebula - NGC 1962-65-66-70.
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  • 2
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 33 (1992), S. 174-177 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: In supersymmetric quantum mechanics, the differential equations corresponding to exactly solvable potentials may be treated by algebraic methods. By use of a system of geodesic polar coordinates on a Riemannian manifold, and subsequent transformation to a Schrödinger equation with a potential in two ways, it is demonstrated that the local behavior of the exactly solvable potentials considered in supersymmetric quantum mechanics corresponds to isotropic harmonic oscillator and Pöschl–Teller potential problems.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 102 (1995), S. 3123-3128 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Quantum-deformed algebra (q-DA) of the O(4) dynamical symmetry of the U(4) group is studied in respect of the vibrational spectra of diatomic molecules. It is shown that, as in the case of the U(6) group for nuclei, the q-deformation parameter in Uq(4)&supuline;Oq(4) must also be complex for any meaningful gain in going from the classical to the q-deformed algebra. Application is made to the ground electronic state (X 1Σ+g) of the H2 molecule. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1574-6941
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The community composition and structure of planktonic heterotrophic bacteria (903 isolates) sampled from a small eutrophic lake in northern England (Priest Pot) was studied with respect to season (four samples) and depth (to 3.1 m). Bacteria (887) were isolated on tryptic soy broth agar and identified to 48 genera using fatty acid methyl ester analysis. The two most abundant genera isolated were Aeromonas and Pseudomonas which, respectively, dominated the middle to bottom depths in August and all depths in February. The structure of the sampled community was described using: species richness, Simpson's index and the Shannon–Wiener index. All three indices detected a number of significant differences with depth demonstrating stratification. The greatest stratification of the bacterial community was observed in August when bacterial counts correlated strongly and negatively with diversity. Using structural measures was found to be preferable to the use of species frequencies in the analysis of perturbation and succession in community structure. Insensitivity to one or more of eight antibiotics was observed in 71% (61/86) of the isolates tested particularly in Gram-negative genera. Bacteriocinogeny and lysogeny was observed in 36% (32/90) of isolates. Using sensitive indicator strains, two of 10 producing strains produced virus, while the others produced bacteriocins.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical chemistry accounts 47 (1978), S. 51-58 
    ISSN: 1432-2234
    Keywords: Electron pair distribution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Electron pair distribution functions are analyzed for a variety of SCF+CI wavefunctions, for a range of simple molecules. The statistical correlation between electrons of like spin introduced by the antisymmetry requirement on the many-electron wavefunction is contrasted with the manner in which unlike-spin electron correlation is introduced through the inclusion of configuration interaction.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical chemistry accounts 52 (1979), S. 329-340 
    ISSN: 1432-2234
    Keywords: UHF spin densities ; CI method for improving ∼ ; Spin densities, UHF ∼
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Limited Configuration Interaction wave functions based on Unrestricted Hartree-Fock natural orbitals are found to be easy to compute and to give much more satisfactory spin densities than are provided by techniques currently in use.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 17 (1980), S. 759-774 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The Coulomb correlation hole distribution function has been computed with respect to various reference centers in the HCN molecule, using standard SCF+CI type wave functions. The extent to which statistical correlation between unlike-spin electrons is introduced into an SCF wave function through the inclusion of configuration interaction has been assessed by an examination of the range and depth of such holes, and compared with the behavior of analogous Fermi distribution functions. Our results show that the range of Fermi correlation is consistently longer than that of the corresponding Coulomb correlation.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 23 (1983), S. 257-270 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Local Coulomb correlation hole distribution functions may be used to assess the extent to which electron correlation effects are present in large scale SCF + CI wave functions. From a set of modified virtual orbitals, ordered according to their interaction with the SCF configuration, we have constructed a limited SCF + CI wave function with improved convergence characteristics with respect to that formed from the canonical virtual orbital set. These wave functions, of the same size yet with different energies, have been used to examine the range and depth of local Coulomb correlation holes in FCN. In all cases, the depth of the local Coulomb hole is no more than 10% or so of that of the corresponding Fermi hole, and the range Fermi correlation is generally less than that of Fermi correlation. This is particularly marked in the high density regions around the nuclei. The significance of our results is discussed in relation to a recent proposal for the incorporation of Coulomb correlation into the local exchange method.
    Additional Material: 8 Tab.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 49 (1994), S. 25-34 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The radial Schrödinger equation for the Kratzer molecular potential is equivalent to that of a radial Coulomb problem with an effective (nonintegral) value of rotational angular momentum. The radial Coulomb and the Morse oscillator problems provide different realizations of the algebra so(2,1), whereby the Casimir operators of the Coulomb and Morse oscillator problems are related to the angular momentum quantum number and to the energy, respectively. These relationships permit mappings between the Kratzer molecular potential and the Morse oscillator potential such that the vibrational energy levels of a Kratzer potential with a fixed rotational angular momentum quantum number may be mapped onto degenerate vibrational levels of a set of displaced Morse oscillators. The ground vibrational level of the Kratzer potential is mapped onto the ground vibrational level of a specific Morse oscillator and the remaining (infinite) set of higher vibrational levels are mapped onto degenerate states of displaced Morse oscillators, corresponding to systematic unit increase in the number of bound vibrational levels and successive decrease in equilibrium separation. This behavior is contrasted with that of the finite set of displaced Morse potentials arising as supersymmetric partner potentials to a given parent Morse potential, where there is a systematic unit decrease in the number of bound vibrational levels and a successive increase in equilibrium separation. © 1994 John Wiley & Sons, Inc.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Computational Chemistry 1 (1980), S. 69-75 
    ISSN: 0192-8651
    Keywords: Computational Chemistry and Molecular Modeling ; Biochemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Computer Science
    Notes: The use of modified virtual orbitals is studied in a systematic conventional CI procedure which offers considerable potential in regard to convergence and extension to larger systems. The method is applied to the HCN molecule by using 37 basis functions, and analysis of energy expectation values, together with the one-electron density, yields some insight into the physical content of CI wavefunctions.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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