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
Filter
  • Articles  (21)
  • 1990-1994  (16)
  • 1950-1954  (5)
  • Computer Science  (18)
  • Economics  (3)
  • Philosophy
Collection
  • Articles  (21)
Source
Keywords
Publisher
Years
Year
Journal
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Number-Theoretic Algorithms (1990)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Computer Science 4 (1990), S. 119-172 
    Details
    ISSN: 8756-7016
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Computer Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.cs.04.060190.001003
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Restructuring the Personnel Function: the Case of Nhs Trusts1 (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Human resource management journal 5 (1994), S. 0 
    Details
    ISSN: 1748-8583
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Stephen Bach, who is Lecturer in Industrial Relations at the Warwick Business School and an Associate Fellow of its Industrial Relations Research Unit, examines the impact of the internal market in the NHS on the role, organisation and influence of the personnel function. He argues that personnel specialists have not been able to fulfil expectations of them and occupy a peripheral role within NHS trusts. This has occurred because of their limited involvement in corporate decision making, the difficulties of decentralising personnel practice and the absence of a strategic direction for the management of human resources at national level. In this context, he argues that the prospects for the personnel function and the potential for an integrated, long-term approach to the management of staff in the NHS remain at best uncertain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1748-8583.1994.tb00369.x
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Sieve algorithms for perfect power testing (1993)
    Springer
    Algorithmica 9 (1993), S. 313-328 
    Details
    ISSN: 1432-0541
    Keywords: Perfect powers ; Number theoretic algorithms ; Riemann hypothesis ; Newton's method ; Sieve algorithms ; Parallel algorithms ; Average-case analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract A positive integern is a perfect power if there exist integersx andk, both at least 2, such thatn=x k . The usual algorithm to recognize perfect powers computes approximatekth roots fork≤log 2 n, and runs in time O(log3 n log log logn). First we improve this worst-case running time toO(log3 n) by using a modified Newton's method to compute approximatekth roots. Parallelizing this gives anNC 2 algorithm. Second, we present a sieve algorithm that avoidskth-root computations by seeing if the inputn is a perfectkth power modulo small primes. Ifn is chosen uniformly from a large enough interval, the average running time isO(log2 n). Third, we incorporate trial division to give a sieve algorithm with an average running time ofO(log2 n/log2 logn) and a median running time ofO(logn). The two sieve algorithms use a precomputed table of small primes. We give a heuristic argument and computational evidence that the largest prime needed in this table is (logn)1+O(1); assuming the Extended Riemann Hypothesis, primes up to (logn)2+O(1) suffice. The table can be computed in time roughly proportional to the largest prime it contains. We also present computational results indicating that our sieve algorithms perform extremely well in practice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01228507
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    facet.materialart.
    Unknown
    Resistance to ddI and sensitivity to AZT induced by a mutation in HIV-1 reverse transcriptase (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-09-27
    Description: Serial human immunodeficiency virus type-1 (HIV-1) isolates were obtained from five individuals with acquired immunodeficiency syndrome (AIDS) who changed therapy to 2',3'-dideoxyinosine (ddI) after at least 12 months of treatment with 3'-azido-3'-deoxythymidine (zidovudine, AZT). The in vitro sensitivity to ddI decreased during the 12 months following ddI initiation, whereas AZT sensitivity increased. Analysis of the reverse transcriptase coding region revealed a mutation associated with reduced sensitivity to ddI. When this mutation was present in the same genome as a mutation known to confer AZT resistance, the isolates showed increased sensitivity to AZT. Analysis of HIV-1 variants confirmed that the ddI resistance mutation alone conferred ddI and 2',3'-dideoxycytidine resistance, and suppressed the effect of the AZT resistance mutation. The use of combination therapy for HIV-1 disease may prevent drug-resistant isolates from emerging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉St Clair, M H -- Martin, J L -- Tudor-Williams, G -- Bach, M C -- Vavro, C L -- King, D M -- Kellam, P -- Kemp, S D -- Larder, B A -- New York, N.Y. -- Science. 1991 Sep 27;253(5027):1557-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Virology, Burroughs Wellcome Co., Research Triangle Park, NC 27709.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1716788" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*drug therapy/microbiology ; Base Sequence ; DNA, Viral/*genetics ; Didanosine/*pharmacology/*therapeutic use ; Drug Resistance, Microbial ; Genotype ; HIV-1/*drug effects/enzymology/isolation & purification ; Humans ; Molecular Sequence Data ; *Mutation ; Oligodeoxyribonucleotides ; RNA-Directed DNA Polymerase/*genetics/metabolism ; Zidovudine/pharmacology/*therapeutic use
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    U1-specific protein C needed for efficient complex formation of U1 snRNP with a 5' splice site (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-01-05
    Description: One of the functions of U1 small nuclear ribonucleoprotein (snRNP) in the splicing reaction of pre-mRNA molecules is the recognition of the 5' splice site. U1 snRNP proteins as well as base-pair interactions between U1 snRNA and the 5' splice site are important for the formation of the snRNP-pre-mRNA complex. To determine which proteins are needed for complex formation, the ability of U1 snRNPs gradually depleted of the U1-specific proteins C, A, and 70k to bind to an RNA molecule containing a 5' splice site sequence was studied in a nitrocellulose filter binding assay. The most significant effect was always observed when protein C was removed, either alone or together with other U1-specific proteins; the binding was reduced by 50 to 60%. Complementation of protein C-deficient U1 snRNPs with purified C protein restored their 5' splice site binding activity. These data suggest that protein C may potentiate the base-pair interaction between U1 RNA and the 5' splice site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heinrichs, V -- Bach, M -- Winkelmann, G -- Luhrmann, R -- New York, N.Y. -- Science. 1990 Jan 5;247(4938):69-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fuer Molekularbiologie und Tumorforschung, Marburg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2136774" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromatography, Affinity ; Electrophoresis, Polyacrylamide Gel ; Introns ; *RNA Splicing ; Ribonucleoproteins/genetics/*physiology ; Ribonucleoproteins, Small Nuclear
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    Psychopharmacologic drugs: mechanisms of action (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bach-y-Rita, P -- New York, N.Y. -- Science. 1994 Apr 29;264(5159):642-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8171313" target="_blank"〉PubMed〈/a〉
    Keywords: Brain/*drug effects ; Fluoxetine/*pharmacology ; Humans ; Psychotropic Drugs/*pharmacology ; Synaptic Transmission/*drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    Control of kinetic properties of AMPA receptor channels by nuclear RNA editing (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-09
    Description: AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor channels mediate the fast component of excitatory postsynaptic currents in the central nervous system. Site-selective nuclear RNA editing controls the calcium permeability of these channels, and RNA editing at a second site is shown here to affect the kinetic aspects of these channels in rat brain. In three of the four AMPA receptor subunits (GluR-B, -C, and -D), intronic elements determine a codon switch (AGA, arginine, to GGA, glycine) in the primary transcripts in a position termed the R/G site, which immediately precedes the alternatively spliced modules "flip" and "flop." The extent of editing at this site progresses with brain development in a manner specific for subunit and splice form, and edited channels possess faster recovery rates from desensitization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lomeli, H -- Mosbacher, J -- Melcher, T -- Hoger, T -- Geiger, J R -- Kuner, T -- Monyer, H -- Higuchi, M -- Bach, A -- Seeburg, P H -- New York, N.Y. -- Science. 1994 Dec 9;266(5191):1709-13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neuroendocrinology, University of Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7992055" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; Animals ; Base Sequence ; Brain/embryology/*metabolism ; Cell Nucleus/metabolism ; Exons ; Glutamic Acid/pharmacology ; Glycine/genetics ; Introns ; Kinetics ; Membrane Potentials ; Molecular Sequence Data ; Oocytes ; PC12 Cells ; Patch-Clamp Techniques ; *RNA Editing ; Rats ; Rats, Wistar ; Receptors, AMPA/*genetics/*metabolism ; Recombinant Proteins/metabolism ; Xenopus
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    facet.materialart.
    Unknown
    Sieve algorithms for perfect power testing (1993)
    Springer
    Details
    Publication Date: 1993-04-01
    Print ISSN: 0178-4617
    Electronic ISSN: 1432-0541
    Topics: Computer Science , Mathematics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 9
    facet.materialart.
    Unknown
    Tensor Products and Computability (1994)
    Elsevier
    Details
    Publication Date: 1994-12-01
    Print ISSN: 0747-7171
    Electronic ISSN: 1095-855X
    Topics: Computer Science , Mathematics
    Published by Elsevier
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Factoring polynomials using fewer random bits (1990)
    Elsevier
    Details
    Publication Date: 1990-03-01
    Print ISSN: 0747-7171
    Electronic ISSN: 1095-855X
    Topics: Computer Science , Mathematics
    Published by Elsevier
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...