1,443 research outputs found
Corrigendum
No full textChen ZQ, Liu Y, Zhao JH, Wang L, Feng NP. Improved oral bioavailability of poorly water-soluble indirubin by a supersaturatable self-microemulsifying drug delivery system. International Journal of Nanomedicine. 2012;7:1115–1125.Figures 1 and 4 have been corrected.Read the original article
On various parameters of Zq-simplex codes for an even integer q
No full textIn this paper, we defined the Zq-linear codes and discussed its various parameters. We constructed Zq-Simplex code and
Zq-MacDonald code and found its parameters. We have given a lower and an upper bounds of its covering radius for q is an even integer.The first author would like to gratefully acknowledge the UGC-RGNF[Rajiv Gandhi National Fellowship], New Delhi for providing fellowship
The second author was supported by a grant(SR/S4/MS:588/09) for the Department of Science and Technology, New Delh
On various parameters of Zq-simplex codes for an even integer q
No full textIn this paper, we defined the Zq-linear codes and discussed its various parameters. We constructed Zq-Simplex code and
Zq-MacDonald code and found its parameters. We have given a lower and an upper bounds of its covering radius for q is an even integer.The first author would like to gratefully acknowledge the UGC-RGNF[Rajiv Gandhi National Fellowship], New Delhi for providing fellowship
The second author was supported by a grant(SR/S4/MS:588/09) for the Department of Science and Technology, New Delh
Structure-based design of 7-carbamate analogs of geldanamycin
No full textThe 7-carbamate groups of geldanamycin and its 17-(2-dimethylaminoethyl)amino-17-demethoxy derivative (17-DMAG) bind the N-terminal domain of Hsp90 by establishing a network of hydrogen bonds which involve four buried water molecules. In this study, a structure-based approach was used to investigate the effects of displacing some of these waters by modification of the 7-carbamate. A general loss of binding to human Hsp90 was observed, except for replacement of the carbamate with a hydroxamate group which gave an analog with weak activity. Modeling of Hsp90-ligand interactions suggested that the hydroxamate was not able to displace the buried water molecules, while bulkier substituents able to do so proved inactive
Sasajiscymnus pseudoamplus Tong & Wang, sp. nov.
No full textSasajiscymnus pseudoamplus Tong & Wang sp. nov. (Figs 48, 75) Chinese name: fflkḧ瓢• Diagnosis. This species closely resembles S. amplus (Yang & Wu, 1972), but can be distinguished from the later by its penis guide approximately parallel sided for basal 1/ 2 in ventral view (Fig. 48g). In S. amplus, penis guide is widest at base in ventral view (Fig. 47g). Description. TL: 2.60–3.56 mm, TW: 1.95–2.70 mm, TH: 1.27–1.48 mm. Body oval, moderately convex, surfaces covered with short pubescence (Figs 48a–c). Head yellowish brown, with interocular distance distinctly greater than eye width in frontal view. Pronotum yellowish brown with a large black spot at base. Scutellar shield black. Elytra black with yellowish brown apices. Ventral surfaces yellowish brown to black. Legs yellowish brown. Abdominal postcoxal lines incomplete, recurved toward the base of ventrite (Fig. 48d). Male genitalia: Penis long and slender, penis capsule with inconspicuous outer arm and long inner one, apex of penis pointed (Figs 48e–f). Penis guide long and slender in lateral view, arcuate and gradually narrowing to pointed apex; parameres about 1/8 as long as penis guide, with a tuft of long setae at apex; Penis guide approximately parallel sided for basal 1/2 in ventral view, then gradually narrowing to blunt apex (Figs 48g–h). Female genitalia: Coxites shaped board plates; styli absent; spermatheca worm-like, with basal ramus and nodulus. Type material. Holotype: China: Guizhou: ♂, Luodian County, 20.VIII.2006, Wang XM leg (SCAU). Paratypes (SCAU): China: Guizhou: 4♂ 1♀, Same data as holotype; 4♂ 1♀, Huangguoshu Waterfalls Scenic Area, 15.VIII.1990, Tian MY leg; 1♀, Weng’ang, Maolan National Nature Reserve, 800 m, 15.VIII.2006, Wang XM leg; 1♂ 2♀, Wuyan Bridge, Maolan National Nature Reserve, 17.VIII.2006, Wang XM leg; 7♂ 19♀, Luodian County, 19.VIII.2006, Wang XM leg; 19♂ 9♀, Xianheping Nature Reserve, 14–15.IX.2006, Wang XM leg; 1♂ 3♀, Dongtang, Maolan National Nature Reserve, 730 m, 15–18.X.2008, Wang XM leg; 1♀, Sancha River, Maolan National Nature Reserve, 750 m, 19.X.2008, Wang XM leg. Hainan: 1♀, Baihua Mountains, Qiongzhong County, VIII.1995, Peng ZQ leg; 1♀, Wufenchang, Limushan National Forest Park, IX.1995, Peng ZQ leg; 1♀, Qixianling Hot Springs National Forest Park, 7. V.2005, Wang XM leg; 1♂, Diaoluoshan National Nature Reserve, 8. V.2005, Wang XM leg; 1♂, Limushan National Forest Park, 23.VII.2006, Wang XM leg; 1♀, Yinggezui, Yinggeling National Nature Reserve, 16.IV.2019, Wang XM leg. Yunnan: 1♂, Malipo County, 17.VIII.2005, Wang XM leg; 5♂ 2♀, Fengqing County, 27.VIII.2005, Wang XM leg; 1♀, Mang City, 28.VIII.2005, Wang XM leg; 1♀, Mangbing, Yingjiang City, 29.VIII.2005, Wang XM leg; 1♂, Gaoligongshan National Nature Reserve, 19.IX.2006, Wang XM leg; 5♀, Dadugang Town, Jinghong City, 950 m, 26.IV.2008, Wang XM leg; 4♂ 4♀, Menglun Town, Mengla County, 1160 m, 29.IV.2008, Wang XM leg; 2♀, Banlao Town, Cangyuan County, 1100 m, 16.V.2008, Wang XM leg; 10♂2♀, Caiyanghe National Forest Park, 4.V.2009, Wang XM leg; 1♂, Dadugang Town, Jinghong City, 1050 m, 5.V.2009, Wang XM leg; 1♀, Jinuoshan Town, Jinghong City, 6. V.2009, Wang XM leg; 2♂ 2♀, Aini Village, Jinghong City, 11. V.2009, Wang XM leg; 2♂ 1♀, Meng’a Town, Menghai County, 1170 m, 12. V.2009, Wang XM leg. Distribution. China (Hainan, Guizhou, Yunnan). Etymology. The specific epithet pseudoamplus refers to the similarity between the new species and S. amplus.Published as part of TONG, JUNBO, CHEN, XIAOSHENG, ZHANG, XIAONING, HUO, LIZHI, WU, GANG, PENG, ZHENGQIANG & WANG, XINGMIN, 2022, A review of the genus Sasajiscymnus Vandenberg, 2004 from China (Coleoptera, Coccinellidae), pp. 1-104 in Zootaxa 5207 (1) on pages 69-71, DOI: 10.11646/zootaxa.5207.1.1, http://zenodo.org/record/732808
MACRO SLIP THEORY OF PLASTICITY FOR POLYCRYSTALLINE SOLIDS
No full textA macro slip theory is presented in this paper.Four independent slip systems are proposed forpolycrystalline solids.Each slip system consists of a slip plane which lies on a face of the octahedron in stressspace and a slip direction which is coincident with shear stress acting on the same face o..
1ST-PRINCIPLES CALCULATIONS FOR QUASI-PARTICLE ENERGIES OF GAP AND GAAS
No full textWe have applied the Green-function method in the GW approximation to calculate quasiparticle energies for the semiconductors GaP and GaAs. Good agreement between the calculated excitation energies and the experimental results was achieved. We obtained calculated direct band gaps of GaP and GaAs of 2.93 and 1.42 eV, respectively, in comparison with the experimental values of 2.90 and 1.52 eV, respectively. An ab initio pseudopotential method has been used to generate basis wave functions and charge densities for calculating the dielectric matrix elements and self-enegies. To evaluate the dynamical effects of the screened interaction, the generalized-plasma-pole model has been utilized to extend the dielectric matrix elements from static results to finite frequencies. We presen the calculated quasiparticle energies at various high-symmetry points of the Brillouin zone and compare them with the experimental results and other calculations
Extremum principle of crystal plasticity
No full textAn analytical method for determining slip shear rate under prescribed stress rate or prescribed strain rate has been presented on the basis of the incremental theory of crystal plasticity. The problem has been reduced to a quadric convex programming.In order to analyse the plastic response of crystals subjected to external load, two new extremum principles are proposed. They are equivalent to the boundary-value problem of crystal plasticity. By the new extremum principles, the slip shear rates are independent function which can be obtained from the variational equation
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