Search Results - (Author, Cooperation:J. A. Levy)
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1Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
2Latest Papers from Table of Contents or Articles in PressK. Knox ; D. Carrigan ; G. Simmons ; F. Teque ; Y. Zhou ; J. Hackett, Jr. ; X. Qiu ; K. C. Luk ; G. Schochetman ; A. Knox ; A. M. Kogelnik ; J. A. Levy
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-06-02Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Adolescent ; Adult ; Aged ; Antibodies, Viral/blood ; Base Sequence ; Blood/*virology ; Child ; Child, Preschool ; Complement System Proteins/immunology ; DNA Contamination ; DNA, Viral/blood ; Drug Contamination ; Fatigue Syndrome, Chronic/blood/immunology/*virology ; Female ; Humans ; Indicators and Reagents ; Leukemia Virus, Murine/genetics/isolation & purification ; Leukocytes, Mononuclear/*virology ; Male ; Middle Aged ; Molecular Sequence Data ; Polymerase Chain Reaction ; Retroviridae Infections/diagnosis/*virology ; Xenotropic murine leukemia virus-related virus/genetics/immunology/*isolation & ; purification ; Young AdultPublished by: -
3Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1572-9982Source: Springer Online Journal Archives 1860-2000Topics: EconomicsType of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesGARDNER, M. B. ; IHLE, J. N. ; PILLARISETTY, R. J. ; TALAL, N. ; DUBOIS, E. L. ; LEVY, J. A.
[s.l.] : Nature Publishing Group
Published 1977Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Female B/W mice, raised in our laboratory breeding colony15, were maintained from 4 weeks of age on a low phenylalanine-low tyrosine diet. This diet prolongs survival and prevents immune complex nephropathy in B/W mice1. Control mice were fed an unrestricted ad lib diet. Mice were necropsied when ...Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1573-5117Keywords: genetically modified organisms (GMOs) ; transgenic fish ; food safetySource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract The gene transfer technique, transgenesis, has permitted the transfer of genes from one organism to another to create new lineages of organisms with improvement in traits important to aquaculture. Genetically modified organisms (GMOs), therefore, hold promise for producing genetic improvements, such as enhanced growth rate, increased production and efficiency, disease resistance and expanded ecological ranges. The basic procedure to generate transgenic fish for aquaculture includes: (1) design and construction of transgenic DNA; (2) transfer of the gene construct into fish germ cells; (3) screening for transgenic fish; (4) determination of transgene expression and phenotype; (5) study of inheritance; and (6) selection of stable lines of transgenics. GMOs offer economic benefits, but also pose environmental threats. Optimising the mix of benefits and risks is of fundamental importance. The potential economic benefits of transgenic technology to aquaculture are obvious. Transgenic fish production has the goal of producing food for human consumption; thus the design of genetic constructs must take into consideration the potential risks to consumer health, as well as marketing strategies and product acceptance in the market.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1573-5117Keywords: Portunidae ; population genetics ; gene flow ; allozymes ; estuarine retentionSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for completing its life cycle, using them as recruitment sites and nursery grounds. If estuarine retention is an important process acting in favour of the recruitment of local populations, we should expect restriction of gene flow among populations inhabiting different estuaries. Therefore, our aim was to establish whether gene flow between populations of C. danaefrom different estuaries was restricted. Samples were collected in four estuaries: São Francisco do Sul, Laguna (Santa Catarina), Patos Lagoon and Chuí Stream (Rio Grande do Sul). Eleven loci were resolved. Contingency table tests (χ2 and G) showed significant differences (P≤0.05) between pair-wise subpopulation comparisons. The estimated F ST was θ=0.065±0.019, suggesting a moderate structuring of C. danae populations. No relationship was found for the number of migrants between pairs of subpopulations and the geographic distance separating them (P= 0.292; r 2= 0.269). Nevertheless, UPGMA analysis clustered together those estuaries separated by less than 250 km. Low adult migration, the requirement of estuaries as reproductive areas, recruitment sites and nursery grounds for juveniles, together with larval and post-larval retention processes, are discussed in the context of their importance in preventing panmixia among subpopulations inhabiting different estuaries.Type of Medium: Electronic ResourceURL: