ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Hydroxyalk-(4Z)-enoic Acids and Volatile Components from the Seeds of Zanthoxylum armatum (1993)
    s.l. : American Chemical Society
    Journal of natural products 56 (1993), S. 456-460 
    Details
    ISSN: 1520-6025
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/np50094a002
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Discovery of a New Diet for Patients with Acute Myocardial Infarction: An Indian Experiment on Infarct Survival (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 676 (1993), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1993.tb38752.x
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    PUBLIC ENTERPRISE IN INDIA AN OVERVIEW (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of public and cooperative economics 50 (1979), S. 0 
    Details
    ISSN: 1467-8292
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8292.1979.tb00850.x
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Role of nickel crystallite in nickel zeolite catalysts: n-hexane isomerization (1986)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 25 (1986), S. 530-537 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i300024a005
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Radio frequency suppression of lower hybrid drift instability in a theta pinch (1987)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 30 (1987), S. 1485-1488 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A lower hybrid pump wave with frequency close to the lower hybrid frequency (ω1/2cω1/2ci) is a potential candidate for the suppression of lower hybrid drift instability in a theta pinch. The coupling is a four-wave parametric process involving lower hybrid sidebands. It introduces an effective damping on the drift mode causing suppression of the latter at modest pump powers. The longer wavelength modes are more strongly affected than the shorter ones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.866261
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    4-Ethynyl-4-hydroxycyclohexan-1-one and 4-ethynyl-4-hydroxy-2,3,5,6-tetramethylcyclohexa-2,5-dien-1-one (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 1356-1358 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compounds, C8H10O2, (I), and C12H14O2, (II), occurred as by-products in the controlled synthesis of a series of bis(gem-alkynols), prepared as part of an extensive study of synthon formation in simple gem-alkynol derivatives. The two 4-(gem-alkynol)-1-ones crystallize in space group P21/c, (I) with Z′ = 1 and (II) with Z′ = 2. Both structures are dominated by O—H...O=C hydrogen bonds, which form simple chains in the cyclohexane derivative, (I), and centrosymmetric dimers, of both symmetry-independent molecules, in the cyclohexa-2,5-diene, (II). These strong synthons are further stabilized by C[triple-bond]C—H...O=C, Cmethylene—H...O(H) and Cmethyl—H...O(H) interactions. The direct intermolecular interactions between donors and acceptors in the gem-alkynol group, which characterize the bis(gem-alkynol) analogues of (I) and (II), are not present in the ketone derivatives studied here.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100011355
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Racemic 1,2-diphenylbut-3-yn-2-ol (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 1359-1360 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Molecules of the title compound, C16H14O, are chiral and crystallize in space group P\overline 4 with Z′ = 2, and with one R and one S molecule in the asymmetric unit. The conformations of the phenyl rings in the two independent molecules differ slightly. Supramolecular organization in the crystal is via tetrameric O—H...H(O) hydrogen-bonded synthons formed separately by each conformer. These tetrameric synthons stack along the c axis via C[triple-bond]C—H...O(H) hydrogen bonds. The only link between the conformer stacks is provided by weaker Cmethylene—H and Cphenyl—H interactions with πarene density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100011343
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    External watchman routes (1994)
    Springer
    The visual computer 10 (1994), S. 474-483 
    Details
    ISSN: 1432-2315
    Keywords: Watchman routes ; Visibility ; Art gallery problem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract We consider the problem of finding a shortest watchman route from which the exterior of a polygon is visible (external watchman route). We present an O (n 4 log logn) algorithm to find shortest external watchman routes for simple polygons by transforming the external watchman route problem to a set of internal watchman route problems. Also, we present faster external watchman route algorithms for special cases. These include optimal O (n) algorithms for convex, monotone, star and spiral polygons and an O (n log logn) algorithm for rectilinear polygons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01910637
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Computational methods for evaluating swept object boundaries (1994)
    Springer
    The visual computer 10 (1994), S. 266-276 
    Details
    ISSN: 1432-2315
    Keywords: Swept objects ; Sweep rules ; Boundary evaluation ; Volume modeling ; Region modeling ; Body modeling ; Pen-stroke modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Many systems support the design of two-dimensional (2D) regions and three-dimensional (3D) volumes by sweeping a generator contour over a spine. Well-established and widely used rendering systems accept high-level boundary descriptions of regions and solids but not in the contour-spine form. Hence the swept object design specification must be such as to lend itself to efficient evaluation of a compact and high-level boundary description. In this paper, we identify a sufficiently general class of swept objects and classify the sweep rules. We also present computational methods for directly evaluating the boundary representation which implicitly simulate the sweep process. The boundary is generated as a set of piecewise curves/surfaces in a compact form suitable for direct input to rendering systems like Post-Script(R) in 2D and Renderman(R) in 3D.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01901583
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    An Approximation Algorithm for Alignment of Multiple Sequences using Motif Discovery (1999)
    Springer
    Journal of combinatorial optimization 3 (1999), S. 247-275 
    Details
    ISSN: 1573-2886
    Keywords: multiple sequence alignment ; alignment number ; protein sequences ; motif discovery ; MAX SNP hard ; approximate algorithm ; set covering problem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Given a set of N sequence, the Multiple Sequence Alignment problem is to align these N sequences, possibly with gaps, that brings out the best commonality of the N sequences. The quality of the alignment is usually measured by penalizing the mis-matches and gaps, and rewarding the matches with appropriate weight functions. However for larger values of N, additional constraints are required to give meaningful alignments. We identify a user-controlled parameter, an alignment number K (2 ≤ K ≤ N): this additional requirement constrains the alignment to have at least K sequences agree on a character, whenever possible, in the alignment. We identify a natural optimization problem for this approach called the K-MSA problem. We show that the problem is MAX SNP hard. We give a natural extension of this problem that incorporates “biological relevance” by using motifs (common patterns in the sequences) and give an approximation algorithm for this problem in terms of the motifs in the data. MUSCA is an implementation of this approach and our experimental results indicate that this approach is efficient, particularly on large numbers of long sequences, and gives good alignments when tested on biological data such as DNA and protein sequences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009841927822
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...