10,883 research outputs found
Pseudothaumaspis bispinosus Wang & Liu 2014
No full text72) Pseudothaumaspis bispinosus Wang & Liu, 2014 1 ♂ (Holotype): VIETNAM: 40km S/ of Dilinh (Djiring)/ 543 m, 26.IV.1960; L.W. Quate / Collector 1 nymph: VIETNAM: 17 km / S of Dilinh / 1300m, 6–13.X.1960; C.M. Yoshimoto / CollectorPublished as part of Jin, Xingbao, Liu, Xianwei & Wang, Hanqiang, 2020, New taxa of the tribe Meconematini from South-Pacific and Indo-Malayan Regions (Orthoptera, Tettigoniidae, Meconematinae), pp. 1-53 in Zootaxa 4772 (1) on page 50, DOI: 10.11646/zootaxa.4772.1.1, http://zenodo.org/record/381411
Mesobuthus przewalskii Zhang & Liu & Feng & Zhang & Shi 2020, stat. nov.
No full text<i>Mesobuthus przewalskii</i> (Birula, 1897) stat. nov. <p> <i>Buthus caucasicus przewalskii</i> Birula, 1897: 387–388; Kraepelin, 1899: 25; Birula, 1904: 24; Birula, 1927: 201–209.</p> <p> <i>Buthus przewalskii</i>: Kishida, 1939: 44.</p> <p> <i>Mesobuthus caucasicus przewalskii</i>: Vachon, 1958: 150, fig. 31; Fet, 1989: 111; Sun & Zhu, 2010: 4–5, figs 3, 14–16; Shi & Zhang, 2005: 475; Sun & Sun, 2011: 60–61, figs 1–2, 10; Di <i>et al.</i>, 2015: 111.</p> <p> <i>Olivierus caucasicus przewalskii</i>: Farzanpay, 1987: 156; Fet <i>et al.</i>, 2000: 192; Zhu <i>et al.</i>, 2004: 113.</p> <p> <i>Olivierus przewalskii</i>: Kovařík, 2019: 25–26, figs 181–182.</p> <p>Type locality. China (near Lob-nor, Ruoqiang and Oasis Cherchen, Qiemo in the east edge of the Tarim Basin, Xinjiang).</p> <p>Material examined. China. Xinjiang: 3♂, 4♀, Tuokexun, 42°47´N, 88°40´E, 12 September 2015, C.M. Shi; 1♂, 8♀, Turpan, 42°57´N, 89°06´E, 20 September 2017, C.M. Shi & G.M. Liu; 2♂, 3♀, Hami, 42°52´N, 93°26´E, 14 September 2015, X.G. Guo; 3♀, Hami, 42°41´N, 93°27´E, 22 September 2017, C.M. Shi & G.M. Liu; 3♂, 1♀, Kuche, 41°44´N, 82°55´E, 20 August 2018, C.M. Shi; 3♀, Tiemenguan, 41°47´N, 86°11´E, 21 September 2017, G.M. Liu & Y. Feng; 1♂, 3♀, Shanshan, 42°51´N, 90°13´E, 11 September 2015, C.M. Shi; 9♂, 8♀, Tumushuke, 39°53´N, 78°55´E, 24 August 2018, C.M. Shi; 1♀, Tarim, 40°38´N, 84°18´E, 21 June 2015, X.G. Guo; 5♂, 3♀, Qiemo, 38°15´N, 85°32´E, 26 August 2019, C.M. Shi & Y. Feng; 2♂, 7♀, Ruoqiang, 39°01´N, 88°10´E, 27 August 2019, C.M. Shi & Y. Feng. Gansu: 1♂, Dunhuang, 40°18´N, 94°44´E, 23 September 2017, C.M. Shi & G.M. Liu; 2♂, 3♀, Guazhou, 40°29´N, 96°02´E, 16 September 2015, C.M. Shi. Inner Mongolia: 1♂, 1♀, Ejina, 42°04´N, 101°12´E, 5 September 2015, C.M. Shi.</p> <p>Distribution. China (Xinjiang (Tarim Basin), Inner Mongolia (Ejina Qi), Gansu (Guazhou, Dunhuang)).</p> <p> Description. Total length 50–61mm in adult males, 53–75mm in females (Figs 1–4). Pedipalp femur with 4–5 granulate carinae, patella with 8 granulate or smooth carinae, manus with irregular netlike dark pigments; chela slender with Cl/Cw= 3.98±0.38 (Cl—chela length, Cw—chela width, mean ± SD, <i>n</i> = 43) for female and 3.07±0.28 (<i>n</i> = 28) for male. Trichobothrium <i>db</i> on fixed finger of pedipalp situated between trichobothria <i>esb</i> and <i>est</i>, near to <i>est</i>. For both sexes, movable and fixed fingers of pedipalps with 11 and 10 cutting rows of denticles, respectively (Figs 5–6); movable fingers with 5 terminal denticles. Pectinal teeth number 15–19 in females and 19–23 in males (Figs 7–8). Seventh sternite bears 4 marked granulate carinae. Metasomal segments I– V sparsely hirsute with 10-8-8-8-5 complete carinae; ventrolateral carinae strong, serrate, becoming stronger gradually from anterior to posterior. Lateral and dorsal surfaces of metasomal segment V with sparse granules and ventral with sparse large granules. Telson sparsely hirsute, bumpy; aculeus about equal to a half of telson length. Leg femur and patella with carinae; long tibial spurs present on legs III and IV; pedal spur with solitary setae; tarsomeres with two rows of setae on ventral surface and numerous macrosetae on other surfaces. Telotarsus III ventrally bear two rows of setae in which every contains not more than 13 setae in both sexes.</p>Published as part of <i>Zhang, Xueshu, Liu, Gaoming, Feng, Yu, Zhang, Dexing & Shi, Chengmin, 2020, Genetic analysis and ecological niche modeling delimit species boundary of the Przewalski's scorpion (Scorpiones: Buthidae) in arid Asian inland, pp. 81-96 in Zoological Systematics 45 (2)</i> on page 85, DOI: 10.11865/zs.202013, <a href="http://zenodo.org/record/5365299">http://zenodo.org/record/5365299</a>
Hormones and tomato seed germination
No full textUsing GA- and ABA-deficient mutants, exogenous gibberellins (GAs), abscisic acid (ABA) and osmoticum, we studied the roles of GAs and ABA in the induction of cell cycle activities, internal free space formation and changes in water relations during seed development and imbibition in tomato. First of all, it was demonstrated that endogenous ABA plays an important role in induction of primary dormancy, prevention of viviparous germination and arresting cell cycle activities of the radicle-tip cells in G 1 phase upon maturation. Secondly, the flow cytometric analysis of seeds of the three genotypes upon imbibition in water, GA 4+7 or ABA solutions, revealed that GAs influence germination of intact seeds by acting upon the processes that precede cell cycle activation, or in other words, the weakening of the endosperm opposite radicle tip, induced by GAs, promotes cell growth and subsequently induces nuclear replication activity upon imbibition, while ABA affects growth by acting upon the processes that follow cell cycle activation. Studies with the controlled deterioration test (CD) show that, after osmotic priming, the advancement of germination of seeds, expressed as the ratio of 4C nuclei of radicle-tip calls, is positively related with the germination rate, and negatively related with the storability of the treated seeds. In addition, the determination of water relations illustrates that the absence of GAs and ABA during development and imbibition may alter water relations of both fruit and seed tissues, which certainly contributes to the mechanism preventing precocious and viviparous germination. Finally, it is concluded that exogenous GAs and ABA can relieve or strengthen the mechanical restraint imposed by the tissues surrounding the embryo, upon embryo water uptake, resulting in promoting or inhibiting germination by GAs and ABA respectively
Back gate bias dependent quasi-saturation in a high-voltage SOI MOSFET: 2D analysis and closed-form analytical model
No full textCorrespondence to Mary Ann Smith From William H. Borders and C.M. Lowe, March 22, 1961
No full textCorrespondence from William H. Borders and C.M. Lowe to Mary Ann Smith notifying her of a meeting for the Atlanta Student Adult Liaison. 1 page
Purification and Characterization of an antiplatelet peptide, arietin, from Bitis arietans venom.
No full textTriflavin, an antiplatelet Arg-Gly-Asp-containing peptide, is a specific antaognist of platelet membrane glycoprotein IIb/IIIa complex.
No full textThree-component velocity measurements in a momentum-conserving, axisymmetric, turbulent jet
No full textExperiments have been performed on a momentum conserving axisymmetric turbulent jet, the turbulence characteristics of which are well known [1]. Simultaneous three-component velocity measurements are acquired with high spatial and temporal resolution, using a new triple-sensor hotwire probe. Velocity and directional calibrations are performed using a dedicated automatic calibration system. Two experiments are performed; one for capturing the average velocity field in a 3D volume, and one for investigating the turbulence spectra in specific points in space. In the first experiment, measurements are performed in 9 equidistant cross-planes, from 10- to 50-diameters downstream of the nozzle using a computer-controlled traversing system. The spatial resolution is as low as 1 mm and the sampling rate was 10 kHz. In the second experiment, long velocity time histories are acquired with 50 kHz sampling rate to perform power spectral density computations for each velocity component. Preliminary results of velocity capture confirm the general characteristics of the turbulent jet. The power spectra at different positions indicate that the turbulent fluctuations are not isotropic at lower frequencies
Inhibition of RPE cell-mediated matrix adhesion and collagen gel contraction by crovidisin, a collagen-binding snake venom protein.
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