1,720,994 research outputs found
FIGURES 1–28 in Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa
No full textFIGURES 1–28: Stenopterobia cataractarum sp. nov. LM (DIC). Figures 1–26. Valves from the holotype slide BR 4345, Ntumbachushi Falls, Luapula Province, Zambia, showing size range, valve view. Figures 27–28. Girdle views. Scale bar = 10 µm.Published as part of Cocquyt, Christine, Taylor, Jonathan C. & Wetzel, Carlos E., 2014, Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa, pp. 76-84 in Phytotaxa 158 (1) on page 78, DOI: 10.11646/phytotaxa.158.1.5, http://zenodo.org/record/512817
FIGURES 19–30 in Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa
No full textFIGURES 19–30. Diploneis fenestrata: LM of valves from holotype (BR 4331) (Lumangwe Falls on the Kalungwishi River in Zambia); specimens at different focal depths, showing size range in valve view. Scale bar = 10 µm.Published as part of Taylor, Jonathan C., Karthick, Balasubramanian, Cocquyt, Christine & Lang, Pauline, 2014, Diploneis fenestrata sp. nov. (Bacillariophyta), a new aerophilic diatom species from Zambia, Africa, pp. 79-88 in Phytotaxa 167 (1) on page 82, DOI: 10.11646/phytotaxa.167.1.4, http://zenodo.org/record/513859
FIGURE 39 in Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa
No full textFIGURE 39: Length to width ratio of 141 valves of Stenopterobia cataractarum (diamonds) and 3 valves of Stenopterobia delicatissima var. ghanaensis (squares) from material of sample 12-349, Ntumbachushi Falls, Luapula Province̡ Zambia and Foged (Foged 1966, Cocquyt & Kusber 2010) respectively.Published as part of Cocquyt, Christine, Taylor, Jonathan C. & Wetzel, Carlos E., 2014, Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa, pp. 76-84 in Phytotaxa 158 (1) on page 82, DOI: 10.11646/phytotaxa.158.1.5, http://zenodo.org/record/512817
FIGURE 39 in Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa
No full textFIGURE 39: Length to width ratio of 141 valves of Stenopterobia cataractarum (diamonds) and 3 valves of Stenopterobia delicatissima var. ghanaensis (squares) from material of sample 12-349, Ntumbachushi Falls, Luapula Province̡ Zambia and Foged (Foged 1966, Cocquyt & Kusber 2010) respectively.Published as part of Cocquyt, Christine, Taylor, Jonathan C. & Wetzel, Carlos E., 2014, Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa, pp. 76-84 in Phytotaxa 158 (1) on page 82, DOI: 10.11646/phytotaxa.158.1.5, http://zenodo.org/record/512817
FIGURES 35–38 in Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa
No full textFIGURES 35–38: Stenopterobia cataractarum sp. nov., type material from sample 12-349, Ntumbachushi Falls, Luapula Province, Zambia, SEM. Internal valve view. Figure 35. Overview of the entire valve. Figure 36. Detail in the middle of the valve showing the simple portulae and the bi- to triseriate striae composed of unoccluded areolae. Figure 37. Apical pole with simple, slightly bent internal terminal raphe fissures. Figure 38. Base pole with simple, straighter terminal raphe fissures extending slightly onto the valve mantle. Scale bars: 10 µm (in Fig. 35). Scales bar: 2 µm (in Figs 36–38).Published as part of Cocquyt, Christine, Taylor, Jonathan C. & Wetzel, Carlos E., 2014, Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa, pp. 76-84 in Phytotaxa 158 (1) on page 80, DOI: 10.11646/phytotaxa.158.1.5, http://zenodo.org/record/512817
FIGURES 26–35 in Actinellopsis murphyi gen. et spec. nov.: A new small celled freshwater diatom (Bacillariophyta, Eunotiales) from Zambia
No full textFIGURES 26–35. SEM images of external head and foot poles of Actinellopsis murphyi gen. et. spec. nov. Figs 26–30. SEM images of external view of head pole. Figs 31–35. SEM images of external view of foot pole. Rimoportula opening (R). Scale bar = 3 µm (26, 27), 2 µm (28, 29, 30, 31, 32, 33, 34, 35).Published as part of Taylor, Jonathan C., Karthick, Balasubramanian, Kociolek, J. Patrick, Wetzel, Carlos E. & Cocquyt, Christine, 2014, Actinellopsis murphyi gen. et spec. nov.: A new small celled freshwater diatom (Bacillariophyta, Eunotiales) from Zambia, pp. 128-137 in Phytotaxa 178 (2) on page 132, DOI: 10.11646/phytotaxa.178.2.4, http://zenodo.org/record/514528
FIGURES 36–41 in Actinellopsis murphyi gen. et spec. nov.: A new small celled freshwater diatom (Bacillariophyta, Eunotiales) from Zambia
No full textFIGURES 36–41. SEM images of valve interior of Actinellopsis murphyi gen. et. spec. nov. Figs 36–38. SEM images showing the internal valve view. Figs 39–41 SEM images of internal pole showing rimoportulae, helictoglossa and internal areolar openings. Scale bar = 10 µm (37), 5 µm (36, 38), 2 µm (40, 41), 1 µm (39).Published as part of Taylor, Jonathan C., Karthick, Balasubramanian, Kociolek, J. Patrick, Wetzel, Carlos E. & Cocquyt, Christine, 2014, Actinellopsis murphyi gen. et spec. nov.: A new small celled freshwater diatom (Bacillariophyta, Eunotiales) from Zambia, pp. 128-137 in Phytotaxa 178 (2) on page 133, DOI: 10.11646/phytotaxa.178.2.4, http://zenodo.org/record/514528
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
Taylor, Jonathan C.
No full text1999"Crabapple, malus." In loving memory of Jonathan C. Taylor Class of 1999 by his family and friendsGift in MemoryTree; Plaqu
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