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
  • American Society of Hematology  (10)
  • Wiley-Blackwell  (5)
  • American Association for the Advancement of Science (AAAS)  (4)
  • 1990-1994  (19)
  • 1
    Electronic Resource
    Electronic Resource
    Modeling of isotropic reacting turbulence by a hybrid mapping-EDQNM closure (1992)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 38 (1992), S. 535-543 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A hybrid model is developed and implemented for predicting the limiting bound of the reactant conversion rate in an isotropic turbulent flow under the influence of a reaction of the type A + B Products. This model is based on the amplitude mapping closure of Kraichnan for the molecular mixing of a stochastically distributed scalar, and the eddy-damped quasi-normal Markovian (EDQNM) spectral closure for the two-point scalar covariance. The results predicted by this model compare well with available experimental data in both gaseous and aqueous plug-flow reactors, but point to the need for more detailed measurements in future experimental studies. With the implementation of the mapping closure, a simple analytical expression is obtained for the decay rate of the unmixedness. This expression is very convenient and is recommended for direct practical applications in the modeling and design of plug-flow reactors.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690380407
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Comparative assessment of closures for turbulent reacting flows (1993)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 39 (1993), S. 899-903 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690390519
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Electron microscopic studies of magnetosomes in magnetotactic bacteria (1994)
    New York, NY [u.a.] : Wiley-Blackwell
    Microscopy Research and Technique 27 (1994), S. 389-401 
    Details
    ISSN: 1059-910X
    Keywords: Biomineralization ; Greigite ; Magnetite ; Pyrite ; Single-magnetic-domain ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Notes: Electron microscopic studies on magnetosomes in magnetotactic bacteria have revealed much information on their composition, structure, and even the formation of their mineral phase. The mineral phases of the magnetosomes are of two general types: iron oxides and iron sulfides. Iron oxide-type magnetosomes contain particles of the ferrimagnetic mineral magnetite (Fe3O4) while the iron sulfide-type contain ferrimagnetic greigite (Fe3S4), greigite and non-magnetic pyrite (FeS2), or possibly ferrimagnetic pyrrhotite (Fe7S8). Regardless of their composition, the crystalline particles in magnetosomes have a narrow size range: approximately 35 to 120 nm. Magnetite crystals in this size range are single-magnetic-domains and confer a permanent magnetic dipole moment to the cell. The single-domain size range for greigite is not known but is probably similar to that for magnetite.The morphology of the particles in the bacterial magnetosomes appears to be species-specific. Morphologies of magnetite crystals in different species of magnetotactic bacteria include cubooctahedra, parallelepipedal (truncated hexahedral or octahedral prisms), and tooth- or bullet-shaped (anisotropic). Morphologies of greigite particles include cubo-octahedra and rectangular prismatic. The greigite-pyrite particles are generally pleomorphic with no consistent crystalline morphology. A membrane has been shown to surround the particles in some organisms and may be involved in the formation of the crystalline phase while also providing physical constraints on the size and the shape of the crystal. These results clearly indicate that the biomineralization process involved in the bacterial magnetosome, a good example of a self-assembled structure on a nanometer scale, is highly controlled by the organism. © 1994 Wiley-Liss, Inc.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jemt.1070270505
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Genes and structural patterns in ciliates: Vance tartar and the “cellular architects” (1992)
    Chichester [u.a.] : Wiley-Blackwell
    Developmental Genetics 13 (1992), S. 181-186 
    Details
    ISSN: 0192-253X
    Keywords: Inheritance ; non-genic ; pattern-formation ; ciliate ; Stentor coeruleus ; Tartar ; Vance ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The one form of cytoplasmic inheritance that has not been assimilated into the Central Dogma is the inheritance of surface structural patterns, a phenomenon most clearly expressed in cilates. Vance Tartar, although he worked with a genetically undomesticated organism (Stentor coeruleus), provided early evidence for the crucial role of clonally propagated features of the cell cortex. He showed that the capacity for development of cortical organelle systems is associated with a particular relational feature, the “locus of stripe contrast” (LSC), and that clonally inherited cortical variants (homopolar doublets) could be created at will by microsurgical operations that duplicated the LSC. Tartar also hoped to demonstrate the existence of what David Nanney called “cellular architects” by provoking stentors to carry out entirely novel types of morphogenetic performances. He eventually acknowledged failure, although the bizarre juxtapositions by which he attempted to elicit such novel performances did bring about specific and illuminating defects in cortical development. Subsequent analyses of similar defects in other ciliates revealed not the unitary “pattern factor” postulated by Tartar, but rather a hierarchy of distinct patterning mechanisms. Nonetheless, by pursuing an embryological approach toward morphogenesis in a highly regulative ciliate, Tartar uncovered relational aspects of pattern-determination; this, in my view, delineates the major problem that we must solve to gain understanding of intracellular patterning. © 1992 Wiley-Liss, Inc.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/dvg.1020130302
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Synthesis of novel energetic compounds. 8. Electrosynthesis of azidodinitromethyl compounds (1990)
    Weinheim : Wiley-Blackwell
    Propellants, Explosives, Pyrotechnics 15 (1990), S. 26-29 
    Details
    ISSN: 0721-3115
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Azidodinitromethyl compounds represent a new highly energetic class of propellant ingredients. Preparation of these materials was accomplished by means of electroxidative coupling of azide ions to dinitromethyl carbanions. Thus, anodic coupling of sodium azide with ethyl 4,4-dinitrobutyrate produced ethyl 4-azido-4,4-dinitrobutyrate. Similarly, 4-azido-4,4-dinitrobutyl acetate was prepared from 4,4-dinitrobutyl acetate and converted by way of the corresponding alcohol to the nitrate ester, 4-azido-4,4-dinitrobutyl nitrate.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prep.19900150108
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    facet.materialart.
    Unknown
    Genes for epilepsy mapped in the mouse (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-08-09
    Description: The neurological mutant mouse strain E1 is a model for complex partial seizures in humans. The inheritance of epileptic seizures with seven conventional chromosomal markers and over 60 endogenous proviral markers was studied by means of back-crosses of E1 with two seizure-resistant strains, DBA/2J and ABP/LeJ. The major gene responsible for this epileptic phenotype (El-1) was localized to a region distal with respect to the centromere on chromosome 9. At least one other gene, El-2, linked to proviral markers on chromosome 2, also influences the seizure phenotype. In addition, a potential modifier of seizures was detected in the DBA/2J background. The location of El-1 on distal chromosome 9 may allow identification of an epilepsy candidate gene in humans on the basis of conserved synteny with human chromosome 3.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rise, M L -- Frankel, W N -- Coffin, J M -- Seyfried, T N -- NS 23355/NS/NINDS NIH HHS/ -- R35CA44385/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1991 Aug 9;253(5020):669-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Boston College, Chestnut Hill 02167.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1871601" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Crosses, Genetic ; Epilepsy/*genetics ; Female ; Genetic Predisposition to Disease ; Male ; Mice ; Mice, Inbred Strains ; Mice, Neurologic Mutants/*genetics ; Recombination, Genetic ; Seizures/genetics ; Software
    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
    Arginine-mediated RNA recognition: the arginine fork (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-05-24
    Description: Short peptides that contain the basic region of the HIV-1 Tat protein bind specifically to a bulged region in TAR RNA. A peptide that contained nine arginines (R9) also bound specifically to TAR, and a mutant Tat protein that contained R9 was fully active for transactivation. In contrast, a peptide that contained nine lysines (K9) bound TAR poorly and the corresponding protein gave only marginal activity. By starting with the K9 mutant and replacing lysine residues with arginines, a single arginine was identified that is required for specific binding and transactivation. Ethylation interference experiments suggest that this arginine contacts two adjacent phosphates at the RNA bulge. Model building suggests that the arginine eta nitrogens and the epsilon nitrogen can form specific networks of hydrogen bonds with adjacent pairs of phosphates and that these arrangements are likely to occur near RNA loops and bulges and not within double-stranded A-form RNA. Thus, arginine side chains may be commonly used to recognize specific RNA structures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calnan, B J -- Tidor, B -- Biancalana, S -- Hudson, D -- Frankel, A D -- AI29135/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1991 May 24;252(5009):1167-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Nine Cambridge Center, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1709522" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Arginine ; Base Sequence ; Cloning, Molecular ; Gene Products, tat/genetics/*metabolism ; Genes, tat ; HIV Long Terminal Repeat/physiology ; HIV-1/genetics/*metabolism ; Hydrogen Bonding ; Membrane Proteins/genetics/metabolism ; Molecular Sequence Data ; Mutagenesis, Insertional ; Nucleic Acid Conformation ; Peptides/metabolism ; Protein Binding ; RNA/genetics/*metabolism ; Transcriptional Activation ; tat Gene Products, Human Immunodeficiency Virus
    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
    Conformation of the TAR RNA-arginine complex by NMR spectroscopy (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-03
    Description: The messenger RNAs of human immunodeficiency virus-1 (HIV-1) have an RNA hairpin structure, TAR, at their 5' ends that contains a six-nucleotide loop and a three-nucleotide bulge. The conformations of TAR RNA and of TAR with an arginine analog specifically bound at the binding site for the viral protein, Tat, were characterized by nuclear magnetic resonance (NMR) spectroscopy. Upon arginine binding, the bulge changes conformation, and essential nucleotides for binding, U23 and A27.U38, form a base-triple interaction that stabilizes arginine hydrogen bonding to G26 and phosphates. Specificity in the arginine-TAR interaction appears to be derived largely from the structure of the RNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Puglisi, J D -- Tan, R -- Calnan, B J -- Frankel, A D -- Williamson, J R -- AI29135/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):76-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621097" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/*metabolism ; Base Sequence ; Binding Sites ; Gene Products, tat/metabolism ; HIV-1/*genetics ; Hydrogen Bonding ; Magnetic Resonance Spectroscopy/methods ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA, Messenger/*chemistry/metabolism ; RNA, Viral/*chemistry/metabolism ; RNA-Binding Proteins/*chemistry/metabolism ; tat Gene Products, Human Immunodeficiency Virus
    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
  • 9
    facet.materialart.
    Unknown
    Multiple evolutionary origins of magnetotaxis in bacteria (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-02-05
    Description: Magnetosomes are intracellular, iron-rich, membrane-enclosed magnetic particles that allow magnetotactic bacteria to orient in the earth's geomagnetic field as they swim. The magnetosomes of most magnetotactic bacteria contain iron oxide particles, but some magnetotactic species contain iron sulfide particles instead. Phylogenetic analyses of small subunit ribosomal RNA sequences showed that all known magnetotactic bacteria of the iron oxide type are associated with the a subgroup of the Proteobacteria in the domain Bacteria. In contrast, uncultured magnetotactic bacteria of the iron sulfide type are specifically related to the dissimilatory sulfate-reducing bacteria within the delta subdivision of the Proteobacteria. These findings indicate a polyphyletic origin for magnetotactic bacteria and suggest that magnetotaxis based on iron oxides and iron sulfides evolved independently.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Delong, E F -- Frankel, R B -- Bazylinski, D A -- New York, N.Y. -- Science. 1993 Feb 5;259(5096):803-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17809345" target="_blank"〉PubMed〈/a〉
    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
  • 10
    facet.materialart.
    Unknown
    Phase I trial of H65-RTA immunoconjugate in patients with cutaneous T- cell lymphoma (1991)
    American Society of Hematology
    Details
    Publication Date: 1991-09-01
    Description: H65-RTA is an immunoconjugate that consists of the A chain of ricin (RTA), a ribosomal-inhibiting protein, coupled to a murine monoclonal antibody (H65) directed against the pan-T-cell antigen CD5. The CD5 antigen is heterogeneously expressed on cutaneous T-cell lymphoma tumor cells, but is not expressed on normal cells except lymphocytes. A phase I trial was therefore conducted in which 14 patients with cutaneous T- cell lymphoma progressive on other therapies were treated with up to three cycles of H65-RTA. The maximal tolerated dose (MTD) of H65-RTA was 0.33 mg/kg/d administered intravenously for 10 days as defined by dyspnea at rest at higher doses. Other reversible side effects included myalgia, mild hypoalbuminemia with weight gain, pedal edema, fatigue, fevers, and chills. Six patients received more than one cycle of H65- RTA without increased side effects compared with the first cycle. Pharmacokinetic analysis showed that peak serum drug levels were dose- dependent, and ranged from 1.13 to 5.56 micrograms/mL, with a terminal half-life ranging from 1.0 to 2.9 hours. The development of antibodies against the immunoconjugate was associated with a lower peak drug level, but not with enhanced side effects. Partial responses lasting from 3 to 8 months were documented in four patients. Three of the responding patients received more than one cycle of H65-RTA in the presence of anti-immunoconjugate antibodies. The results from this phase I trial suggest that H65-RTA is an active drug in the treatment of cutaneous T-cell lymphoma. The immunoconjugate may be safely administered repeatedly, even in the presence of anti-immunoconjugate antibodies, with responses noted. Additional studies at the MTD are needed to define the response rate in this disease.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
    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...