37,216 research outputs found
July-December -- 1986 -- Correspondence, Miscellaneous -- letter, 1986-08-07
No full textLetter from Gupta, R. K. to Sabin, Albert B. dated 1986-08-07.Sabin Collection Fair Use Policy</a
Correspondence, Frank T. Perkins -- 1978-81 -- OPV WHO -- letter, 1981-03-27
No full textLetter from Gupta, R. K. to Sabin, Albert B. dated 1981-03-27.Sabin Collection Fair Use Policy</a
Anharmonic elastic behaviour and Gruneisen parameters of hexahalometallate crystals
No full textThe third-order elastic constants (TOEC), pressure derivatives of second-order
elastic constants (SOEC) and Griineisen parameters of A,BX,-type single crystals such as
K,SnCI,, K,ReCI,, (NH,),SnCI, and (NH,),SnBr, have been calculated on a microscopic
scale, in order to analyse the anharmonicity in these hexahalometallate crystals. The input
data used for determining the model parameters are considered at room temperature. The
calculated values of TOEC combinations are found to be negative while positive values are
found for pressure derivatives Of SOEC in all the four crystals under study. The experimental
values of these properties have also been shown for the sake of comparison. A fairly good
agreement between theoretical and experimental results is obtained
Erratum to: Is Sensory Loss an Understudied Risk Factor for Frailty? A Systematic Review and Meta-analysis
No full textIn the article “Is Sensory Loss an Understudied Risk Factor for Frailty? A Systematic Review and Meta-analysis,” an author was missing. Ana Maseda should be listed as the 11th author. The correct author list is: Benjamin Kye Jyn Tan, Ryan Eyn Kidd Man, Alfred Tau Liang Gan, Eva K Fenwick, Varshini Varadaraj, Bonnielin K Swenor, Preeti Gupta, Tien Yin Wong, Caterina Trevisan, Laura Lorenzo-López, Ana Maseda, José Carlos Millán-Calenti, Carla Helena Augustin Schwanke, Ann Liljas, Soham Al Snih, Yasuharu Tokuda, Ecosse Luc Lamoureux. This error has been corrected
Cereal Genomics: Excitements, challenges and opportunities
No full textCereals constitute the most important food crops of the world, occupying ~680 million hectares of land and producing ~2,295 million tonnes of food grain globally (October 4, 2012; http://www.fao.org/worldfoodsituation/wfs-home/csdb/en/), even though this production is lower than that for the year 2011 (2,340 million tonne
Study of microstructure of chill cast aluminium bronzes (Cu-AI-Fe-Mn)
No full textSUBSTANTIAL information is available on the microstru-ctures of high tensile aluminium -bronzes but most of
the literature is pertaining to the alloys containing nickel. Exhaustive amount of work was carried out by Gupta et al. at the National Metallurgical Laboratory
to study the mechanical properties of aluminium-bronze alloys in the chill-cast condition without nickel addition, the results of which have already been reported in an earlier paper. The present paper relates
to the study of microstructures of these chill-cast aluminium-bronze alloys. A few microstructures of
Cu-Al-Fe system have been given by Copper Development Association in their recent publication on aluminium-bronzes.
On the aberration–retardation effects in pulsars
No full textThe magnetospheric locations of pulsar radio emission region are not well known. The actual form of the so-called radius-to-frequency mapping should be reflected in the aberration-retardation (A/R) effects that shift and/or delay the photons depending on the emission height in the magnetosphere. Recent studies suggest that in a handful of pulsars the A/R effect can be discerned with respect to the peak of the central core emission region. To verify these effects in an ensemble of pulsars, we launched a project analysing multifrequency total intensity pulsar profiles obtained from the new observations from the Giant Meterwave Radio Telescope (GMRT), Arecibo Observatory (AO) and archival European Pulsar Network (EPN) data. For all these profiles, we measure the shift of the outer cone components with respect to the core component, which is necessary for establishing the A/R effect. Within our sample of 23 pulsars, seven show the A/R effects, 12 of them (doubtful cases) show a tendency towards this effect, while the remaining four are obvious counterexamples. The counterexamples and doubtful cases may arise from uncertainties in the determination of the location of the meridional plane and/or the core emission component. Hence, it appears that the A/R effects are likely to operate in most pulsars from our sample. We conclude that in cases where those effects are present the core emission has to originate below the conal emission region
Acetabularia jalakanyakae Saini & Madhu & Kohli & Gupta & Bast 2021, Sp. Nov.
No full textAcetabularia jalakanyakae Sp. Nov. (Fig. 1) Description The main body is comprised into three regions: a basal part with a rhizoidal holdfast, a middle region with a long stalk, and the topmost upper part with an umbrella-shaped circular cap. It consists of an unbranched cylindrical stalk. Stalk length is 20 – 40 mm with a cap diameter of 5 – 13 mm. The cap is completely fused, having 40 – 60 cap rays. The outer end of each ray forms a pointed structure. The outer ring (Corona inferior) consists of slender lobes with bifurcation. The inner ring (Corona superior) has 40 – 60 lobes without bifurcations. The inner ring comprised of 6 or 7 hairs per lobe and shows protrusions inside. The developing cap shows a swollen lobe inside and early partition at inner and outer rings. Holotype Collected from intertidal rocks at Port Blair, Andaman and Nicobar Islands, India. Herbarium voucher is deposited at Agharkar Research Institute, Pune, India, (Index Herbarium code: AHMA), under voucher no. AHMA - 32437. The DNA sequence of 18S rDNA partial region of the isolate generated and deposited at GenBank under accession # MT371394. Isotype Isotype deposited at the Central University of Punjab, Bathinda (Index Herbarium code: CUPB), under voucher no. CUPB-ACT-2019-1. Etymology Specific epithet which is feminine noun in genitive means ‗mermaid‘ in Sanskrit to refer the aesthesis of the cap that resembles mermaid‘s umbrella. Limitations The study analysed only a few algal samples from one site in Andaman Islands. More efforts to study the species biogeography would have added value to this report. The study did not analyse the life cycle patterns as the investigation did not involve any algal culturing. As life cycle and ontogeny are highly informative, this would have significantly improved the manuscript. Additionally, the length of generated sequence is only 234 bp and all four mismatches with the closest hit (A. dentata) were all ambiguities (N or R). However, strength of morphological synapomorphies stands valid for the description of new species.Published as part of Saini, K C, Madhu, A, Kohli, R K, Gupta, K & Bast, F, 2021, Morpho-molecular assessment of Acetabularia jalakanyakae Sp. Nov. (Dasycladales, Chlorophyta) - a new species from Andaman and Nicobar Islands, India, pp. 701-708 in Indian Journal of Geo Marine Sciences 50 (9) on pages 706-707, DOI: 10.5281/zenodo.634408
Cereal Genomics II
No full textDuring the last decades, major advances have been made in the field of cereal genomics. For instance, high-density genetic maps, physical maps, QTL maps and even draft genome sequence have become available for several cereal species. This has been facilitated by the development of next generation sequencing (NGS) technologies, so that, it is now possible to sequence genomes of hundreds or thousands of accessions of an individual cereal crop. Significant amounts of data generated using these latest NGS technologies created a demand for computational tools to analyse this massive data. These developments related to technology and the tools, along with their applications not only to plant and genome biology but also to breeding have been documented in this volume. The volume, entitled “Cereal Genomics II”, therefore supplements the earlier edited volume “Cereal Genomics” published in 2004. The new volume has updated chapters, from the leading authorities in their fields, on molecular markers, next generation sequencing platform and their use for QTL analysis, domestication studies, functional genomics and molecular breeding. In addition, there are also chapters on computational genomics, whole genome sequencing and comparative genomics of cereals. The book should prove useful to students, teachers and young research workers as a ready reference to the latest information on cereal genomics
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