205,111 research outputs found
The Question of Land and Infrastructure Development in India: Urgently Required Reforms for Fairness and Infrastructural Development
No full textLand in India is problematic largely because of archaic and perverse provisions in the practice and the law. The new Land Acquisition Amendment Bill does go some way to correct the anti-democratic and imperial provisions of the old 1894 Act. Other regulatory restraints stand in the way of fair compensation to sellers whether the deal is a sale or an acquisition using eminent domain. Urban planning being based on the “Ricardian Model” and on top of asymmetrically applied regulatory constraints further depresses the benefit to land owners. As a result very little land is obtainable without dispute and high risk for infrastructure development. In this paper we provide an analytical critique of the law and restrictions as also of the framework of urban planning and provide a justification for why major change is required in the approach to land markets, land acquisition and urban planning. We also provide the key elements of a reformed approach that can create a win-win framework for development. We also present our suggestions on how the proposed Amendment to the Land Acquisition Act can be changed to make the Act functional and remove the residual perversities therein.
Theoretical study of nonpolar surfaces of aluminum nitride: Zinc blend (110) and wurtzite (10(1)over-bar-0)
No full textAll-electron density-functional calculations are performed to study atomic structure and electronic properties of the nonpolar surfaces, namely zinc blende (110) and wurtzite (10 (1) over bar 0) of AlN. Both surfaces are modeled using a two-dimensional periodic slab allowing the relaxation of the first two surface layers in the calculations. The results predict a small layer rotation angle accompanied by a contraction of Al-N bond length for both surfaces. These results do not follow the well-accepted rotation-relaxation model that predicts large layer rotation angles (similar to 28 degrees) with no change in the bond length for most of the III-V semiconductor surfaces. Analysis of the relaxed configurations of the AlN surfaces in terms of atomic geometry, density of states, and charge density plots shows a presence of partial double-bond character in the surface Al-N bond. A similarity of these results with an earlier study on GaN nonpolar surfaces [J. E. Jaffe, R. Pandey, and P. Zapol, Phys. Rev. B 53, R4209 (1996)] led us to suggest the contraction-relaxation model where the relaxation proceeds via strengthening of the surface bond. The primary driving force of such a type of relaxation appears to be the ability of nitrogen to form a double bond that facilitates redistribution of the charge density associated with anion dangling bond to the surface bond
Direct association between the Ret receptor tyrosine kinase and the Src homology 2-containing adapter protein Grb7
No full textAdapter proteins containing Src homology 2 (SH2) domains link transmembrane receptor protein-tyrosine kinases to downstream signal transducing molecules. A family of SH2 containing adapter proteins including Grb7 and Grb10 has been recently identified. We had previously shown that Grb10 associates with Ret via its SH2 domain in an activation-dependent manner (Pandey, A., Duan, H., Di Fiore, P.P., and Dixit, V.M. (1995) J. Biol, Chem. 270, 21461-21463). We now demonstrate that the related adapter molecule Grb7 also associates with Ret in vitro and in vivo, and that the binding of the SH2 domain of Grb7 to Ret is direct. This binding is dependent upon Ret autophosphorylation since Grb7 is incapable of binding a kinase-defective mutant of Ret. Thus two members of the Grb family, Grb7 and Grb10, likely relay signals emanating from Ret to other, as yet, unidentified targets within the cell
Spontaneous Flora on Post-industrial Metalliferous Sites
No full textPandey VC, editor. Biodiversity and Ecosystem Services on Post‐Industrial Land. John Wiley and Sons; 2024. p. 53-95
Pandey Review.docx
No full textOne of the
significant challenges faced by water treatment plants is the transformation of
natural organic matter with reference to their quality and quantity owing to
the changing climatic conditions. The natural organic matter consists of
heterogeneous functionalized groups among which phenolic and carboxyl groups
are the dominant groups that are pH-dependent and shows a stronger affinity
towards the metals. Properties of natural organic matter and trace elements
govern the binding kinetics influencing binding of cations to functionalized
groups at lower pH; precisely, Ca2+ ions form strong bonds with
carboxylic groups and Zn2+ ions bond with the amine groups. The
water treatment process mechanisms like adsorption, coagulation, membrane
filtration, and ion exchange efficiencies are strongly affected by the presence
of natural organic matter with cations complex/cations and /or by the natural
organic matter alone. The complexation among the natural organic matter and
coagulants enhances the natural organic matter removal from the coagulation
processes'; further, Ca2+ ions addition enhances the process
positively. The current review illustrates detailed interactions between
natural organic matter and cationic interactions in the environment, cations'
preference and competition for the functionalized groups, and the potential
impacts of cations on natural organic matter in the treatment facilities.</p
Epyris mackenziei Singh & Colombo & Shreevihar & Pandey & Tribull 2021, comb. nov.
No full text<p> <b> 29. <i>Epyris mackenziei</i> (Kurian, 1955) comb. nov.</b> </p> <p>Fig. 29, A–I</p> <p> <i>Chlorepyris mackenziei</i> Kurian, 1955, 4: 101, 103, 104, Figs: 130–135.</p> <p>Type locality: Chapra, Bihar, India (♀ holotype, NFIC-FRI).</p> <p> <b>Diagnosis</b>. Female. Length about 6.8 mm. General colour black with apex of metasoma reddish-brown. Head wider than long; frons weakly coriaceus; ocelli distinct; eye glabrous; median clypeal lobe conspicuous, anterior margin rounded, longer than lateral ones; mandible tridentate; antenna with sparse pubescence, scape 3.0 × longer than pedicel, pedicel longer than first flagellomere. Pronotum weakly coriaceous; mesonotum shorter than pronotal dorsal area; notauli complete, as long as parapsidal signum; mesoscuto-mesoscutellar suture not sulcate, foveae elliptical, very small. Metapectal-propodeal disc wider than long; metapostnotal median carina present; first abdominal spiracle dorsally placed. Tarsal claw bifid. Wings nearly brownish; forewing with pterostigma dark brown; hind wing with three hamuli. Metasoma polished. Male. Unknown.</p> <p> <b>Material examined.</b> Holotype: [INDIA,] <i>Bengal</i> {<i>Bihar</i>}, Chapra, Mackenzie coll.</p> <p> <b>Type conditions.</b> Holotype partly dissected on slide Nº. 81/B and remaining rested on the pin. <i>Pinned</i>: Mesosoma, without any wing or leg. <i>On slides</i>: S1 C1—one proleg without coxae; one femur. S1 C2—head with scape, and metasoma. S2 C1—one forewing and one hind wing. S2 C2—one proleg legs without coxa, second leg without coxa and femur; three fragments of antenna—first with scape, pedicel and first flagellomere, second with four flagellomeres and third with apical eight flagellomeres. S3 C1—four coxae.</p> <p> <b>Remarks.</b> Kurian (1952, p. 103–104) provided a detailed description of the holotype with drawings. We observed the scape without spine-shaped pectens, mesoscuto-scutellar suture with two foveae, not sulcate, and the forewing with the 2r-rs&Rs 2 v long, which supports placing this species in <i>Epyris</i>.</p> <p> <b>Hosts.</b> Unknown.</p>Published as part of <i>Singh, Sudhir, Colombo, Wesley D., Shreevihar, Santhosh, Pandey, Vijay P. & Tribull, Carly M., 2021, Rediscovery of Kurian's types of Hymenoptera at Forest Research Institute, Dehradun, India with notes on Indian bethylid fauna, pp. 1-90 in Zootaxa 5019 (1)</i> on page 51, DOI: 10.11646/zootaxa.5019.1.1, <a href="http://zenodo.org/record/5222728">http://zenodo.org/record/5222728</a>
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
sj-jpg-1-pie-10.1177_09544089221112291 - Supplemental material for A review of the compressive properties of closed-cell aluminum metal foams
No full textSupplemental material, sj-jpg-1-pie-10.1177_09544089221112291 for A review of the compressive properties of closed-cell aluminum metal foams by Sharaf U Nisa, Sunil Pandey and PM Pandey in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
sj-png-3-pie-10.1177_09544089221112291 - Supplemental material for A review of the compressive properties of closed-cell aluminum metal foams
No full textSupplemental material, sj-png-3-pie-10.1177_09544089221112291 for A review of the compressive properties of closed-cell aluminum metal foams by Sharaf U Nisa, Sunil Pandey and PM Pandey in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
Trachepyris sanctipauli Singh & Colombo & Shreevihar & Pandey & Tribull 2021, comb. nov.
No full text<p> <b> 37. <i>Trachepyris sanctipauli</i> (Kurian, 1954b) comb. nov.</b> </p> <p>Fig. 37, A–L</p> <p> <i>Chlorepyris sanctipauli</i> Kurian, 1954b, 3: 423–426, Figs: 14–18.</p> <p>Type locality: Agra, India (♀ holotype, NFIC-FRI).</p> <p> <b>Diagnosis.</b> Female. Length about 4.5 mm. General colour black. Head as long as wide; frons polished; ocelli distinct, posterior to supra-ocular line; eye glabrous; median clypeal lobe conspicuous, anterior margin almost straight, longer than lateral ones; mandible unidentate, apex downward, ventral laminar expansion present; antenna with spine-shaped pubescence, scape 2.3 × longer than pedicel, pedicel longer than first flagellomere. Pronotum polished; mesonotum shorter than pronotal dorsal area; notauli complete, longer than parapsidal signum; mesoscutomesoscutellar suture not sulcate, foveae oval, very small. Metapectal-propodeal disc as long as wide; metapostnotal median carina present; first abdominal spiracle laterally placed. Protibia and metatibia with long spines; tarsal claw bifid. Wings nearly hyaline; forewing with pterostigma brown, 2r-rs&Rs 2 v short; hind wing with five hamuli. Metasoma polished. Male. Unknown.</p> <p> <b>Material examined.</b> Holotype: [INDIA, <i>Uttar Pradesh</i>,] Agra, St. Paul’s Church, 22-VII-1951, Chandy Kurian coll.</p> <p> <b>Type conditions.</b> Holotype partly dissected on slide Nº. 142/B and remaining rested on the pin. <i>Pinned:</i> Complete body. <i>On slides</i>: S1 C1—one metaleg without coxa and femur. S2 C1—one forewing; one hind wing. S2 C2—one proleg; one metaleg; both legs without coxae; one antenna.</p> <p> <b>Remarks.</b> Kurian (1954b, p. 423–426) provided a detailed description of the holotype with drawings. We observed the mandibles with apex downward, ventral margins with laminar expansion, and the mesoscuto-scutellar suture with two foveae, not sulcate, which support the placement of this species in <i>Trachepyris</i>. One of the holotype slides is mistakenly marked as ‘male’.</p> <p> <b>Hosts.</b> Unknown.</p>Published as part of <i>Singh, Sudhir, Colombo, Wesley D., Shreevihar, Santhosh, Pandey, Vijay P. & Tribull, Carly M., 2021, Rediscovery of Kurian's types of Hymenoptera at Forest Research Institute, Dehradun, India with notes on Indian bethylid fauna, pp. 1-90 in Zootaxa 5019 (1)</i> on page 63, DOI: 10.11646/zootaxa.5019.1.1, <a href="http://zenodo.org/record/5222728">http://zenodo.org/record/5222728</a>
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