1,721,072 research outputs found
Human liver high molecular weight zinc-dependent acid p-nitrophenylphosphatase. Purification and properties
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
HUMAN L7A RIBOSOMAL PROTEIN: SEQUENCE, STRUCTURAL ORGANIZATION AND EXPRESSION OF A FUNCTIONAL GENE
No full textHUMAN L7A RIBOSOMAL PROTEIN: SEQUENCE, STRUCTURAL ORGANIZATION AND EXPRESSION OF A FUNCTIONAL GENE
No full textGenetic relationship among cultivated and wild olives revealed by AFLP markers
No full textThe cultivated and wild forms of olive represent one of the widest and well preserved genetic system among fruit crops. In fact over 2000 varieties of olive are still under cultivation and wild olives represent an important component of the Mediterranean maquis. To date the level and distribution of the entire variability, especially at molecular level, were never evaluated. The study of olive diversity could instead represent a powerful tool to monitor the presence within the wild germplasm of agronomically interesting traits, to explore strategies for the introgression of such traits into the cultivated genotypes and to understand the potentiality of new gene combinations. Our study compared wild olives coming from different sites with some widely cultivated varieties. The within and between groups variability was tested and it was possible to observe that varieties and wilds clustered separately. Two types of wild olives were recognized: one showing a higher relatedness with the cultivars and a second one with a molecular profile clearly different from both cultivated and other wild plants. The samples coming from Sicily, Sardinia and Corsica belonged to the first type while the wild plants collected in Apulia showed a higher range of variability and, for some of them, the belonging to the 'oleaster' form of Olea europaea was hypothesized
Human L7a ribosomal protein: sequence, structural organization, and expression of a functional gene
No full textPRIMI RISULTATI NELLA TRASFORMAZIONE GENETICA DELL’OLIVO MEDIANTE L’IMPIEGO DI AGROBATTERI.
No full textSi è cercato di individuare le migliori condizioni per trasformare tessuti di cultivar di olivo mediante Agrobacterium timefaciens ingegnerizzato, contenente il gene reporter GUSint o i geni rol A,B,C /ORFs 10.11.12) del T-DNA dell'Agrobacterium rhizogenes 1855 ed entrambi il gene per la resistenza alla kanamicina NPTII. L'espressione del gene GUS è stata rilevata su callo e piccioli fogliari con l'esame istologico, mediante colorazione con XGLUC, evidenziando, in entrambi i casi, trasformazioni chimeriche
Purification and subcellular localization of Zn-dependent acid p-nitrophenylphosphatase in frog liver and comparison with other vertebrates
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