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
    facet.materialart.
    Unknown
    Validation of ILAS Version 3.10 ozone with ozonesonde measurements (1999)
    In:  EPIC3Geophysical Research Letters, Vol. 26, No. 7, pp. 831-834
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    Electronic Resource
    Electronic Resource
    Artificial fabrication of an L10-type ordered FeAu alloy by alternate monatomic deposition (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 1016-1018 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An FeAu ordered alloy has been fabricated artificially by depositing alternately monatomic layers of Fe and Au. Neither intermediate phase nor intermetallic compound is known for the Fe–Au system in the equilibrium state. Nevertheless, the x-ray diffraction for prepared FeAu films shows definite superlattice lines corresponding to the L10 ordered structure, and it is metastable at room temperature. The obtained FeAu ordered alloy is ferromagnetic, and it has the Fe moment of 2.5±0.3 μB, a considerably high Curie temperature over room temperature, and a large uniaxial magnetic anisotropy perpendicular to Fe and Au atomic planes. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.114715
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Enhancement of intersubband transition energies in GaAs quantum wells by Si delta doping of high concentration (1998)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 72 (1998), S. 719-721 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Intersubband light absorption measurements have been performed on a series of GaAs/AlAs quantum wells with heavy delta doping of Si atoms in the range 9.0×1011–6.5×1012 cm−2. The increase of intersubband transition energy by as much as 38 meV has been observed, and attributed to the deepening of the V-shaped potential by the Si layer and to the depolarization effects. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.120856
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    EFFECT OF SENSITIZING HEAT TREATMENT ON FATIGUE CRACK GROWTH PROPERTIES AT LIQUID HELIUM TEMPERATURE (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 18 (1995), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Many cases exist where material supporting superconducting magnets at liquid helium temperature (4.2 K) are subjected to repeated applications of thermal and electromagnetic stresses. Additionally, since welding cannot be avoided, it is highly desirable that the materials used for supporting superconducting magnets possess excellent strength and toughness in addition to superior mechanical properties after heat treatment. In the current research, an austenitic stainless steel was subjected to a sensitizing heat treatment whose effects, at 4.2 K, on the tensile and the fatigue crack growth properties were clarified. Tensile ductility of the sensitized material was markedly reduced to about one-half that of the solution treated material because of an intergranular form of fracturing in such material. Fatigue crack growth rate of the sensitized material was faster than that of the solution treated material because of the tendency for cracks to develop intergranularly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1995.tb00891.x
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Tetrasodium P1,P4-Bis(5'-adenosyl)tetraphosphate Dodecahydrate (1996)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 338-340 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compound, 4Na+.C20H24N10O19P4-.12H2O, was found to be the dodecahydrate. The two ribose rings adopt the 3′-endo envelope conformation, with the glycosyl linkage anti. The exocyclic side chains have the g conformation. The crystal structure is stabilized by the interaction involving the Na+ ions and the hydrogen bonds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270195010419
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Modulation of Bone Mass, Strength, and Turnover by a New Benzamide Compound, DU-6712, in Adjuvant-Induced Arthritic Rats (1998)
    Springer
    Calcified tissue international 62 (1998), S. 519-526 
    Details
    ISSN: 1432-0827
    Keywords: Key words: Serum osteocalcin — Histomorphometry — Mechanical test — Inflammation — Secondary osteoporosis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract. To assess the reductions in bone mass, strength, and turnover in adjuvant-induced arthritic rats and to examine the effect of a new benzamide compound, DU-6712, on these parameters, a 28-day dosing experiment was performed using 8-week-old female Lewis rats. Arthritis was induced by injecting the adjuvant into the hind paw. The age-dependent increases in the body weight, lumbar bone mineral content and density (BMC and BMD) and compressive strength were disturbed in the arthritic rats. At 14 days, the histomorphometric parameters of bone formation (BFR/BS and BFR/BV) and the serum osteocalcin levels were significantly reduced compared with the baseline controls. However, the BMC values corrected for body weight did not differ significantly between the arthritic and normal rats, and the bone minerals were not reduced compared with the baseline controls. At 28 days, the parameters of bone minerals and strength of the lumbar body in the arthritic rats, both with and without correction for body weight, were significantly reduced compared with the baseline controls. The trabecular mineralizing surface remained significantly reduced and the osteoclast numbers were increased. DU-6712 at the doses of 5, 15, and 45 mg/kg, orally administered daily from the start of the experiment, significantly prevented the development of the chronic paw edema at 28 days. The reductions in the parameters of bone minerals, strength, and trabecular bone formation, and the increase in osteoclast number were alleviated by this agent. Age-dependent increases in the lumbar height, disturbed by the adjuvant injection, were also maintained. These data indicated that a 28-day period is necessary to obtain sufficient reductions in the bone mass and strength of the lumbar body concerning the model of secondary osteoporosis in adjuvant arthritic rats. DU-6712 was able to prevent these reductions by modulating the bone turnover in this arthritis model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002239900472
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Characterization of the cells in the repair tissue of full-thickness articular cartilage defects (1998)
    Springer
    Histochemistry and cell biology 109 (1998), S. 331-338 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract  It is well established that a full-thickness articular cartilage defect is repaired with a fibrocartilaginous tissue, cells of which are derived from undifferentiated mesenchymal stem cells in the bone marrow. To characterize the repair cells biochemically, full-thickness defects were created in rabbit knee joints and the repair tissues taken at 3, 6, and 12 weeks after surgery. The repair cells were cultured and examined biochemically to investigate the effects of four exogenous growth factors with regard to the metabolism of type II collagen and proteoglycans. A significant increase of carboxy-terminal type II procollagen peptide production was observed in the conditional medium of the repair cells, especially taken at 6 weeks after surgery, in the presence of each growth factor. Glycosaminoglycan content was also increased and proteoglycan synthesis stimulated. The repair cells taken at the early stage of the repair process could originally have more activity of type II collagen synthesis, and the growth factors used could enhance the differentiation of the repair cells in vitro.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004180050233
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Fungal and bacterial disease resistance in transgenic plants expressing human lysozyme (1997)
    Springer
    Plant cell reports 16 (1997), S. 674-679 
    Details
    ISSN: 1432-203X
    Keywords: Key words Human lysozyme ; Transgenic tobacco plants ; Disease resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The human lysozyme gene, which is assembled by the stepwise ligation of chemically synthesized oligonucleotides, was introduced into tobacco (Nicotiana tabacum cv `SR1') by the Agrobacterium-mediated method. The introduced human lysozyme gene was highly expressed under the control of the cauliflower mosaic virus 35S promoter, and the gene product accumulated in the transgenic tobacco plants. The transgenic tobacco plants showed enhanced resistance against the fungus Erysiphe cichoracearum – both conidia formation and mycelial growth were reduced, and the size of the colony was diminished. Microscopic observation revealed that the transgenic tobacco plants carried the resistant phenotype, analogous to that of the resistant cultivar `Kokubu' which had been selected by conventional breeding. Growth of the phytopathogenic bacterium Pseudomonas syringae pv. tabaci was also strongly retarded in the transgenic tobacco, and the chlorotic halo of the disease symptom was reduced to 17% of that observed in the wild-type tobacco. Thus, the introduction of a human lysozyme gene is an effective approach to protect crops against both fungal and bacterial diseases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050300
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Cloning and characterization of a gene (arpA) from Aspergillus oryzae encoding an actin-related protein required for normal nuclear distribution and morphology of conidiophores (1999)
    Springer
    Molecular genetics and genomics 262 (1999), S. 758-767 
    Details
    ISSN: 1617-4623
    Keywords: Key words Actin-related protein ; Dynactin ; Nuclear migration ; Aspergillus oryzae ; Hyper-branching hyphae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have isolated the arpA gene from Aspergillus oryzae as a homologue of the Neurospora crassa ro-4 gene. In N. crassa, mutations in the ro-4 gene, which encodes a major component of the dynactin complex Arp1, causes curling of hyphae and abnormalities in nuclear distribution. The arpA gene contains two introns and encodes a polypeptide of 381 amino acids, with a 78% sequence identity to the N. crassa Arp1. Overexpression of the arpA gene causes a defect in nuclear migration into elongating hyphae of germlings in A. oryzae. We constructed arpA disruptant strains of A. oryzae. The arpA null mutants showed poor growth and hyper-branched mycelia, as well as a nuclear distribution defect. Scanning electron microscopy revealed that the arpA null mutant has an aberrant conidiophore morphology with irregular phialides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380051138
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Images of Gradual Millimeter Emission and Multi-Wavelength Observations of the 17 august 1994 Solar Flare (1998)
    Springer
    Solar physics 183 (1998), S. 389-405 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present a comprehensive analysis of the 17 August 1994 flare, the first flare imaged at millimeter (86 GHz) wavelengths. The temporal evolution of this flare displays a prominent impulsive peak shortly after 01:02 UT, observed in hard X-rays and at microwave frequencies, followed by a gradual decay phase. The gradual phase was also detected at 86 GHz. Soft X-ray images show a compact emitting region (≲20′′), which is resolved into two sources: a footpoint and a loop top source. Nonthermal emissions at microwave and hard X-ray wavelengths are analyzed and the accelerated electron spectrum is calculated. This energy spectrum derived from the microwave and hard X-ray observations suggests that these emissions were created by the same electron population. The millimeter emission during the gradual phase is thermal bremsstrahlung originating mostly from the top of the flaring loop. The soft X-rays and the millimeter flux density from the footpoint source are only consistent with the presence of a multi-temperature plasma at the footpoint.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005056016687
    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...