1,721,379 research outputs found
Molecular evidence supporting the expansion of the geographical distribution of the Brazilian cownose ray Rhinoptera brasiliensis (Myliobatiformes: Rhinopteridae) in the western Atlantic
No full textPalacios-Barreto, Paola, Cruz, Vanessa P., Foresti, Fausto, Rangel, Bianca De S., Uribe-Alcocer, Manuel, Díaz-Jaimes, Píndaro (2017): Molecular evidence supporting the expansion of the geographical distribution of the Brazilian cownose ray Rhinoptera brasiliensis (Myliobatiformes: Rhinopteridae) in the western Atlantic. Zootaxa 4341 (4): 593-600, DOI: https://doi.org/10.11646/zootaxa.4341.4.1
Fig. 3 in Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?
No full textFig. 3. Nuclear DNA content per individual (pg, + 95% confidence interval) among the sampled fishes. Rectangles include individuals with the same karyotype and dotted lines within rectangles subdivide samples into groupings of individuals with similar nuclear DNA contents.Published as part of Torres, Rodrigo Augusto, Roper, James Joseph, Foresti, Fausto & Oliveira, Claudio, 2005, Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?, pp. 277-284 in Neotropical Ichthyology 3 (2) on page 280, DOI: 10.1590/S1679-62252005000200005, http://zenodo.org/record/541746
Fig. 2 in Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?
No full textFig. 2. Five different cytotypes found among the samples of Synbranchus marmoratus analyzed. A – from the samples coded as PR, PR, and MS; B – from the samples coded as 2 3 2 SP and SP; C – from the sample coded as PR; D – karyotype 2 3 1Published as part of Torres, Rodrigo Augusto, Roper, James Joseph, Foresti, Fausto & Oliveira, Claudio, 2005, Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?, pp. 277-284 in Neotropical Ichthyology 3 (2) on page 279, DOI: 10.1590/S1679-62252005000200005, http://zenodo.org/record/541746
Molecular systematics of the armored neotropical catfish subfamily Neoplecostominae (Siluriformes: Loricariidae)
No full textRoxo, Fábio F., Zawadzki, Cláudio H., Da Costa Silva, Guilherme J., Chiachio, Marcio C., Foresti, Fausto, Oliveira, Claudio (2012): Molecular systematics of the armored neotropical catfish subfamily Neoplecostominae (Siluriformes: Loricariidae). Zootaxa 3390 (1): 33-42, DOI: 10.11646/zootaxa.3390.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.3390.1.
Fig. 6 in Karyotype description and evidence of multiple sex chromosome system X X X X /X X Y in Potamotrygon aff. motoro and P. falkneri (Chondrichthyes: Potamotrygonidae) in the upper Paraná River basin, Brazil
No full textFig. 6. Somatic metaphases of Potamotrygon aff. motoro, the population of Porto Rico (a), population of Ilha Solteira (b), identification of constitutive heterochromatin. Metaphases of Potamotrygon falkneri sample from Porto Rico (c) and Ilha Solteira (d), analysis of constitutive heterochromatin after C-banding technique.Published as part of Cruz, Vanessa Paes da, Shimabukuro-Dias, Cristiane Kioko, Oliveira, Claudio & Foresti, Fausto, 2011, Karyotype description and evidence of multiple sex chromosome system X X X X /X X Y in Potamotrygon aff. motoro and P. falkneri (Chondrichthyes: Potamotrygonidae) in the upper Paraná River basin, Brazil, pp. 201-208 in Neotropical Ichthyology 9 (1) on page 207, DOI: 10.1590/S1679-62252011000100020, http://zenodo.org/record/542242
Fig. 6. Z in Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae)
No full textFig. 6. Z an W sex chromosomes of the Characidium species analyzed in this study, after C-banding (first row) and silver nitrate staining (second row). Note the different distribution of the heterochromatin, mainly in the W chromosome in (a) C. schubarti, (b), Characidium sp., (c) C. pterostictum, (d) C. oiticicai, (e) C. lanei, and (f) C. lauroi.Published as part of Alves, José Carlos Pansonato, Paiva, Luiz Ricardo de Souza, Oliveira, Claudio & Foresti, Fausto, 2010, Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae), pp. 77-86 in Neotropical Ichthyology 8 (1) on page 82, DOI: 10.1590/S1679-62252010000100010, http://zenodo.org/record/542228
Fig. 3 in Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae)
No full textFig. 3. Karyotypes of female specimens of Characidium pterostictum from Apiaí, SP, after conventional Giemsa staining (a) and C-banding (b). Note the differential patterns of heterochromatic blocks on the Z and W chromosomes and the heterochromatic B-chromosomes In the box, the Z and W chromosomes carrying the NORs in an inverted position. Scale bar = 10 µm.Published as part of Alves, José Carlos Pansonato, Paiva, Luiz Ricardo de Souza, Oliveira, Claudio & Foresti, Fausto, 2010, Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae), pp. 77-86 in Neotropical Ichthyology 8 (1) on page 80, DOI: 10.1590/S1679-62252010000100010, http://zenodo.org/record/542228
FIGURE 2 in Molecular systematics of the armored neotropical catfish subfamily Neoplecostominae (Siluriformes: Loricariidae)
No full textFIGURE 2. Majority rule consensus tree obtained in Bayesian analysis. Numbers below branches are posterior probabilities obtained from 45,000 trees. Numbers above branches are bootstrap values from 1,000 bootstrap pseudoreplicates obtained in maximum-parsimony analysis. Values below 50% are not shown.Published as part of Roxo, Fábio F., Zawadzki, Cláudio H., Da Costa Silva, Guilherme J., Chiachio, Marcio C., Foresti, Fausto & Oliveira, Claudio, 2012, Molecular systematics of the armored neotropical catfish subfamily Neoplecostominae (Siluriformes: Loricariidae), pp. 33-42 in Zootaxa 3390 (1) on page 38, DOI: 10.11646/zootaxa.3390.1.3, http://zenodo.org/record/525403
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
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