168,314 research outputs found
Sedum spiralifolium D. Q. Wang, D. M. Xie & L. Q. Huang 2014, sp. nov.
No full textSedum spiralifolium D. Q. Wang, D. M. Xie & L. Q. Huang, sp. nov. (Figure 4) Type: — CHINA. Anhui Province, Lu’ an City, Shucheng County, Shucha Township, on rocks and along road banks, elevation ca. 50–100 m, 20 April 2012, D. Q . Wang & D. M . Xie 120420 (fl., holotype ACM!, isotype ACM! & PE!) Herbs perennial. Root fibrous. Sterile stems erect, 5–20 cm tall. Flowering stems erect or slightly bent, 10–30 cm. Leaves 3-verticillate, leaf blade linear-lanceolate, 10–25 × 2–3 mm, apex sub-acute, base shortly spurred, mostly 3-lobed, middle tilted 1 mm. Cyme 3–4 branched, corymbiform, ca. 4–7 cm in diameter, many flowered. Flowers sessile except the central flower (4–5 mm long), unequally 5-merous; bracts resembling stem leaves, 5–15 mm. Sepals linear-lanceolate, base shortly spurred, ca. 3–6 mm, apex subacute. Petals yellow, narrowly ovate or broadly lanceolate, 4–7 × 1–2 mm, apex acute, 0.2–0.5 mm. Stamens 10, 4– 5 mm; antepetalous ones ca. 4 mm, inserted ca. 1 mm from petal base; antesepalous ones ca. 5 mm. Nectar scales nearly fan-shaped, apex obtuse, yellow-white, ca. 0.2 × 0.5 mm. Carpels divergent, lanceolate, slightly split ends, ca. 5 mm, base connate for ca. 1 mm, apex slightly divergent. Style ca. 2 mm long. Follicles divergent, many seeded. Seeds brown, ovoid, 0.3–0.8 × 0.2–0.4 mm. Flowering early April, fruiting April–May. (Figure 3 and 4). Distribution & Habitat: — S. spiralifolium is endemic to Anhui Province. It is known from Shucha Township of Shucheng County and Zongyang County of Anqing City in central Anhui Province of eastern China. It grows in valleys, on rocks and along road banks at an elevation of ca. 50– 100 m. Etymology: —The specific epithet ‘ spiralifolium ’ refers to the habitus of the upper leaves on the sterile shoots. Additional collection (paratypes): — CHINA. Anhui Province, Lu’an City, Shucheng County, Shucha Township, along road banks, elevation ca. 100 m, 25 April 2013, D. M . Xie & L. Q. Huang 130425 (PE!); the same locality, road banks, elevation ca. 95 m, 5 May 2013, D. M . Xie & L. Q. Huang 130505 (ACM!), D. Q . Wang & D. M. Xie 130506 (ACM!). Zongyang County of Anqing City, roadside, elevation ca. 50 m, 23 April 2013, D. M . Xie & Q. S. Yang 1304231 (ACM!). Relationships: — S. spiralifolium belongs to S. sect. Sedum characterized by leaves 3-verticillate, yellow flowers, carpels and divergent follicles. It is most similar to S. sarmentosum except for its sterile shoots erect with twisted leaves, its shortly spurred and mostly 3-lobed leaf base, its central flower with 4–5 mm long pedicel, its fan-shaped scales and its earlier flowering time. S. sarmentosum is characterized by leaves that are not twisted, sterile stems creeping and rooting at nodes, leaves oblanceolate to oblong with base abruptly narrowed and spurred, flowers sessile, nectar scales cuneate-quadrangular. (Table 3)Published as part of Xie, Dong-Mei, Peng, Dai-Yin, Fang, Cheng-Wu, Qin, Min-Jian, Wang, De-Qun & Huang, Lu-Qi, 2014, Sedum spiralifolium (Crassulaceae): a new species from Anhui Province, China, pp. 171-182 in Phytotaxa 183 (3) on pages 177-178, DOI: 10.11646/phytotaxa.183.3.4, http://zenodo.org/record/515148
Co-expression of eYFP-XIE-T or eYFP-XIK-T with various fluorescent organelle markers in tobacco epidermal cells
No full texteYFP-XIE-T (magenta a, e, i, m) was co-expressed with fluorescent markers for Golgi bodies (ST-CFP, b), peroxisomes (CFP-SKL, f), mitochondria (β ATPase signal peptide-GFP, j), and the ER (GFP-HDEL, n). The merged images indicate that eYFP-XIE-T is closely associated, but does not solely decorate the periphery of Golgi bodies (c), peroxisomes (g), mitochondria (k), or the ER (o). Merged images of cells co-expressing eYFP-XIK-T (magenta) with fluorescent markers (green) for Golgi bodies (d), peroxisomes (h), mitochondria (l), and ER (p) also show a close association of eYFP-XIK-T with these organelles. Both eYFP-XIE-T and eYFP-XIK-T are present in large and small puncta. eYFP-XIE-T is in more numerous small puncta than eYFP-XIK-T, whereas eYFP-XIK-T is more diffuse throughout the cytosol than eYFP-XIE-T (compare c with d). Scale bar 5 μm.<p><b>Copyright information:</b></p><p>Taken from "Truncated myosin XI tail fusions inhibit peroxisome, Golgi, and mitochondrial movement in tobacco leaf epidermal cells: a genetic tool for the next generation"</p><p></p><p>Journal of Experimental Botany 2008;59(9):2499-2512.</p><p>Published online 23 May 2008</p><p>PMCID:PMC2423659.</p><p></p
La XIe Session d' Études de Droit Canonique à Paris
No full textDenis Jacques. La XIe Session d' Études de Droit Canonique à Paris. In: Revue théologique de Louvain, 3ᵉ année, fasc. 4, 1972. p. 491
5-D interpolation with wave-front attributes
No full textMost 5-D interpolation and regularization techniques reconstruct the missing data in the frequency domain by using mathematical transforms. An alternative type of interpolation methods uses wave-front attributes, that is, quantities with a specific physical meaning like the angle of emergence and wave-front curvatures. In these attributes structural information of subsurface features like dip and strike of a reflector are included. These wave-front attributes work on 5-D data space (e.g. common-midpoint coordinates in x and y, offset, azimuth and time), leading to a 5-D interpolation technique. Since the process is based on stacking next to the interpolation a pre-stack data enhancement is achieved, improving the signal-to-noise ratio (S/N) of interpolated and recorded traces. The wave-front attributes are determined in a data-driven fashion, for example, with the Common Reflection Surface (CRS method). As one of the wave-front-attribute-based interpolation techniques, the 3-D partial CRS method was proposed to enhance the quality of 3-D pre-stack data with low S/N. In the past work on 3-D partial stacks, two potential problems were still unsolved. For high-quality wave-front attributes, we suggest a global optimization strategy instead of the so far used pragmatic search approach. In previous works, the interpolation of 3-D data was performed along a specific azimuth which is acceptable for narrow azimuth acquisition but does not exploit the potential of wide-, rich- or full-azimuth acquisitions. The conventional 3-D partial CRS method is improved in this work and we call it as a wave-front-attribute-based 5-D interpolation (5-D WABI) as the two problems mentioned above are addressed. Data examples demonstrate the improved performance by the 5-D WABI method when compared with the conventional 3-D partial CRS approach. A comparison of the rank-reduction-based 5-D seismic interpolation technique with the proposed 5-DWABI method is given. The comparison reveals that there are significant advantages for steep dipping events using the 5-D WABI method when compared to the rank-reduction-based 5-D interpolation technique. Diffraction tails substantially benefit from this improved performance of the partial CRS stacking approach while the CPU time is comparable to the CPU time consumed by the rank-reduction-based method
Large-eddy simulation for flow and dispersion in urban streets
No full textLarge-eddy simulations (LES) with our recently developed inflow approach (Xie &Castro, 2008a) have been used for flow and dispersion within a genuine city area -the DAPPLE site, located at the intersection of Marylebone Rd and Gloucester Plin Central London. Numerical results up to second-order statistics are reported fora computational domain of 1.2km (streamwise) x 0.8km (lateral) x 0.2km (in fullscale), with a resolution down to approximately one meter in space and one secondin time. They are in reasonable agreement with the experimental data. Such a comprehensiveurban geometry is often, as here, composed of staggered, aligned, squarearrays of blocks with non-uniform height and non-uniform base, street canyons andintersections. Both the integrative and local effect of flow and dispersion to thesegeometrical patterns were investigated. For example, it was found that the peaksof spatially averaged urms, vrms, wrms and < u0w0 > occurred neither at the meanheight nor at the maximum height, but at the height of large and tall buildings. Itwas also found that the mean and fluctuating concentrations in the near-source fieldis highly dependent on the source location and the local geometry pattern, whereasin the far field (e.g. >0.1km) they are not. In summary, it is demonstrated thatfull-scale resolution of around one meter is sufficient to yield accurate prediction ofthe flow and mean dispersion characteristics and to provide reasonable estimationof concentration fluctuation
Statistical analysis of the effects of eYFP-XIE-T and eYFP-XIK-T on Golgi and peroxisome movement
No full textCumulative distribution function (CDF) plots of tracked peroxisomes (CFP-SKL, a, b, c) and Golgi bodies (ST-CFP, d, e, f) from at least 10 independent movies under various experimental conditions were generated. Organelle track velocity (a, d), displacement rates (shortest distance between the beginning and end of a track over time) (b, e), and meandering index (displacement rate divided by the track velocity) (c, f) are shown. Tracks from untreated control samples only expressing markers for Golgi bodies (=543, dotted line) or peroxisomes (=108, dotted line) are shown. Golgi body tracks from samples treated with Latrunculin B (=106, dashed line) or co-expressing eYFP-XIE-T (=243, black line) or eYFP-XIK-T (=125, grey line) are slower and have lower rates than control samples, with Latrunculin B treatment having the lowest rates. Similar results are also apparent for peroxisome movement [peroxisome control (=108), peroxisome sample treated with Latrunculin B (=71), peroxisome sample co-expressing eYFP-XIE-T (=52), or eYFP-XIK-T (n = 79)].<p><b>Copyright information:</b></p><p>Taken from "Truncated myosin XI tail fusions inhibit peroxisome, Golgi, and mitochondrial movement in tobacco leaf epidermal cells: a genetic tool for the next generation"</p><p></p><p>Journal of Experimental Botany 2008;59(9):2499-2512.</p><p>Published online 23 May 2008</p><p>PMCID:PMC2423659.</p><p></p
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
FIGURES 2A–D in Description of a new species of the genus Sinodorcadion Gressitt, 1939 (Coleoptera: Cerambycidae: Lamiinae)
No full textFIGURES 2A–D. Scape and profemora of Sinodorcadion spp. A. C. S. chenzhouensis sp. nov.; B, D. S. punctuscapum Xie, Shi & Wang, 2013; A–B. scape in dorsal-lateral view; C–D. profemora in lateral view.Published as part of Wang, Ping, Xie, Guanglin & Wang, Wenkai, 2022, Description of a new species of the genus Sinodorcadion Gressitt, 1939 (Coleoptera: Cerambycidae: Lamiinae), pp. 385-390 in Zootaxa 5195 (4) on page 387, DOI: 10.11646/zootaxa.5195.4.5, http://zenodo.org/record/719307
Theoretical and experimental studies of a novel cone-jet sensor
No full textModeling of a novel cone-jet sensor using two-dimensional (2-D) finite element analysis was investigated for dimensional measurement. Theoretical and experimental studies demonstrated that a cone-jet sensor supplied with air can be used to accurately measure displacement, and its work range of 1.5 to 4.2 mm is some ten times greater than a simple back-pressure sensor. It is anticipated that this type of sensor will find wide applications in manufacturing industry due to its wider working range, high precision, and other features
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