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  • COMPOSITE MATERIALS  (4)
  • Mice  (3)
  • Humans
  • 2000-2004
  • 1990-1994  (5)
  • 1980-1984  (4)
  • 1991  (5)
  • 1984  (4)
  • 1
    Digitale Medien
    Digitale Medien
    Direct and correlated responses to selection for weaning weight, post-weaning weight gain and six-week weight in mice (1984)
    Springer
    Theoretical and applied genetics 67 (1984), S. 113-122 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Mice ; Selection ; Growth ; Genetic correlation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Four lines of mice were formed from a common base population and selected for 37 generations for either increased 3-week weight (weaning weight), 6-week weight, 3–6 week gain, or maintained as a randomly bred control line. Realised heritability estimates for short-term (long-term) responses were 0.33±0.20 (0.07±0.10), 0.46±0.14 (0.26±0.09), 0.36±0.14 (0.24±0.11) for 3-week weight, 6-week weight and 3–6 week gain, respectively. Realised genetic correlations estimated from short-term (long-term) responses were 0.23±0.08 (0.35±0.10) between 3-week weight and 3–6 week gain; 0.82±0.04 (0.58±0.08) between 3-week weight and 6-week weight; and 0.81±0.04 (0.97±0.04) between 3–6 week gain and 6-week weight. The genetic correlation between 3-week weight and 6-week weight was asymmetric with a greater correlated response for 3-week weight when selecting for 6-week weight (1.06) than vice versa (0.63).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00317015
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Replicated selection for insulin-like growth factor-1 and body weight in mice (1991)
    Springer
    Theoretical and applied genetics 81 (1991), S. 685-692 
    Details
    ISSN: 1432-2242
    Schlagwort(e): IGF-1 ; Body weight ; Realized heritability ; Genetic correlation ; Mice
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Five generations of divergent selection for plasma concentration of insulin-like growth factor-1 (IGF-1) and for 12-week body weight were carried out in mice, including randomly selected control lines for each trait. All lines were replicated once (12 lines in total). Each replicate line consisted of eight male and eight female parents per generation. Litter size was standardized to eight pups at birth. Mass selection was applied in the selected lines and within-family random selection in the control lines. Blood was taken from the orbital sinus of individual mice at 12 weeks of age for IGF-1 assay. Realized heritabilities were 0.10±0.01 for IGF-1 and 0.41 ± 0.02 for 12-week weight. The realized genetic correlation between IGF-1 and 12-week weight was 0.58 ± 0.01, with a phenotypic correlation of 0.38. Although the genetic correlation between IGF-1 and body weight in mice is moderately positive, 12-week weight responded 3.5 times as fast to weight selection as to selection for IGF-1.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00226738
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Unbekannt
    Mapping of DNA instability at the fragile X to a trinucleotide repeat sequence p(CCG)n (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1991-06-21
    Beschreibung: The sequence of a Pst I restriction fragment was determined that demonstrate instability in fragile X syndrome pedigrees. The region of instability was localized to a trinucleotide repeat p(CCG)n. The sequence flanking this repeat were identical in normal and affected individuals. The breakpoints in two somatic cell hybrids constructed to break at the fragile site also mapped to this repeat sequence. The repeat exhibits instability both when cloned in a nonhomologous host and after amplification by the polymerase chain reaction. These results suggest variation in the trinucleotide repeat copy number as the molecular basis for the instability and possibly the fragile site. This would account for the observed properties of this region in vivo and in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kremer, E J -- Pritchard, M -- Lynch, M -- Yu, S -- Holman, K -- Baker, E -- Warren, S T -- Schlessinger, D -- Sutherland, G R -- Richards, R I -- New York, N.Y. -- Science. 1991 Jun 21;252(5013):1711-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cytogenetics and Molecular Genetics, Adelaide Children's Hospital, South Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1675488" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Base Sequence ; Blotting, Southern ; Chromosome Mapping ; Fragile X Syndrome/*genetics ; Humans ; Molecular Sequence Data ; Pedigree ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Repetitive Sequences, Nucleic Acid ; Restriction Mapping ; X Chromosome/ultrastructure
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 4
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    Unbekannt
    Fragile X genotype characterized by an unstable region of DNA (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1991-05-24
    Beschreibung: DNA sequences have been located at the fragile X site by in situ hybridization and by the mapping of breakpoints in two somatic cell hybrids that were constructed to break at the fragile site. These hybrids were found to have breakpoints in a common 5-kilobase Eco RI restriction fragment. When this fragment was used as a probe on the chromosomal DNA of normal and fragile X genotype individuals, alterations in the mobility of the sequences detected by the probe were found only in fragile X genotype DNA. These sequences were of an increased size in all fragile X individuals and varied within families, indicating that the region was unstable. This probe provides a means with which to analyze fragile X pedigrees and is a diagnostic reagent for the fragile X genotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, S -- Pritchard, M -- Kremer, E -- Lynch, M -- Nancarrow, J -- Baker, E -- Holman, K -- Mulley, J C -- Warren, S T -- Schlessinger, D -- New York, N.Y. -- Science. 1991 May 24;252(5009):1179-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cytogenetics and Molecular Genetics, Adelaide Children's Hospital, South Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2031189" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chromosome Mapping ; DNA/*genetics ; Female ; Fragile X Syndrome/*genetics ; Genotype ; Humans ; Hybrid Cells/cytology ; Male ; Nucleic Acid Hybridization ; Reference Values ; Restriction Mapping ; X Chromosome
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    facet.materialart.
    Unbekannt
    Treatment of established renal cancer by tumor cells engineered to secrete interleukin-4 (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1991-11-01
    Beschreibung: The generation of antigen-specific antitumor immunity is the ultimate goal in cancer immunotherapy. When cells from a spontaneously arising murine renal cell tumor were engineered to secrete large doses of interleukin-4 (IL-4) locally, they were rejected in a predominantly T cell-independent manner. However, animals that rejected the IL-4-transfected tumors developed T cell-dependent systemic immunity to the parental tumor. This systemic immunity was tumor-specific and primarily mediated by CD8+ T cells. Established parental tumors could be cured by the systemic immune response generated by injection of the genetically engineered tumors. These results provide a rationale for the use of lymphokine gene-transfected tumor cells as a modality for cancer therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Golumbek, P T -- Lazenby, A J -- Levitsky, H I -- Jaffee, L M -- Karasuyama, H -- Baker, M -- Pardoll, D M -- New York, N.Y. -- Science. 1991 Nov 1;254(5032):713-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Johns Hopkins University, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1948050" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Carcinoma, Renal Cell/genetics/immunology/pathology/*therapy ; Cell Division ; Cell Line ; *Immunotherapy ; Interleukin-4/*genetics/secretion ; Kidney Neoplasms/genetics/immunology/pathology/*therapy ; Lymphocyte Depletion ; Mice ; Mice, Inbred BALB C ; Mice, SCID ; Neoplasm Transplantation ; *Protein Engineering ; T-Lymphocyte Subsets/immunology ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 6
    facet.materialart.
    Unbekannt
    Ground exposure of composite materials for helicopters (1984)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-19
    Beschreibung: Residual strength results are presented on four composite material systems that were exposed for three years at locations on the North American Continent. The exposure locations are near the areas where Bell Model 206L Helicopters, that are in a NSA/U.S. Army sponsored flight service program, are flying in daily commercial service. The composite systems are: (1) Kevlar-49 fabric/F-185 epoxy; (2) Kevlar-49 fabric/LRF-277 epoxy; (3) Kevlar-49 fabric/CE-306 epoxy; and (4) T-300 Graphite/E-788 epoxy. All material systems exhibited good strength retention in compression and short beam shear. The Kevlar-49/LRF-277 epoxy retained 88 to 93 percent of the baseline strength while the other material systems exceeded 95 percent of baseline strength. Residual tensile strength of all materials did not show a significant reduction. The available moisture absorption data is also presented.
    Schlagwort(e): COMPOSITE MATERIALS
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unbekannt
    Worldwide flight and ground-based exposure of composite materials (1984)
    In:  CASI
    Details
    Publikationsdatum: 2016-06-07
    Beschreibung: The long-term durability of those advanced composite materials which are applicable to aircraft structures was discussed. The composite components of various military and commercial aircraft and helicopters were reviewed. Both ground exposure and flight service were assessed in terms of their impact upon composite structure durability. The ACEE Program is mentioned briefly.
    Schlagwort(e): COMPOSITE MATERIALS
    Materialart: ACEE Composite Struct. Technol.; p 17-50
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unbekannt
    Ground exposure of composite materials for helicopters (1984)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: Residual strength results are presented on four composite material systems that were exposed for three years at locations on the North American Continent. The exposure locations are near the areas where Bell Model 206L Helicopters, that are in a NSA/U.S. Army sponsored flight service program, are flying in daily commercial service. The composite systems are: (1) Kevlar-49 fabric/F-185 epoxy; (2) Kevlar-49 fabric/LRF-277 epoxy; (3) Kevlar-49 fabric/CE-306 epoxy; and (4) T-300 Graphite/E-788 epoxy. All material systems exhibited good strength retention in compression and short beam shear. The Kevlar-49/LRF-277 epoxy retained 88 to 93 percent of the baseline strength while the other material systems exceeded 95 percent of baseline strength. Residual tensile strength of all materials did not show a significant reduction. The available moisture absorption data is also presented.
    Schlagwort(e): COMPOSITE MATERIALS
    Materialart: NASA-TM-86311 , AVSCOM-TM-84-B-2 , NAS 1.15:86311 , AHS Natl. Spec. Meeting-Helicopter Testing Technol.; Oct 29, 1984 - Nov 01, 1984; Williamsburg, VA; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unbekannt
    Mechanical property characterization and impact resistance of selected graphite/PEEK composite materials (1991)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: To use graphite/PEEK material on highly curved surfaces requires that the material be drapable and easily conformable to the surface. The mechanical property characterization and impact resistance results are presented for laminates made from two types of graphite/PEEK materials that will conform to a curved surface. These laminates were made from two different material forms. These forms are: (1) a fabric where each yarn is a co-mingled Celion G30-500 3K graphite fiber and PEEK fiber; and (2) an interleaved material of Celion G30-500 3K graphite fiber interleaved with PEEK film. The experimental results from the fabric laminates are compared with results for laminates made from AS4/PEEK unidirectional tape. The results indicate that the tension and compression moduli for quasi-isotropic and orthotropic laminates made from fabric materials are at least 98 pct. of the modulus of equivalent laminates made from tape materials. The strength of fabric material laminates is at least 80 pct. of laminates made from tape material. The evaluation of the fabric material for shear stiffness indicates that a tape material laminate could be replaced by a fabric material laminate and still maintain 89 pct. of the shear stiffness of the tape material laminate.
    Schlagwort(e): COMPOSITE MATERIALS
    Materialart: NASA-TM-102769 , NAS 1.15:102769 , AVSCOM-TR-90-B-012 , National Technical Specialists Meeting on Advanced Rotorcraft Structures; Oct 25, 1988 - Oct 27, 1988; Williamsburg, VA; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
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