1,372,970 research outputs found
Sahoo-Supplement Fig 2.pdf
No full textMicro-architectural
parameters of iliac crest bone evaluated by µCT
(a)
3-D µCT images showing a normal bone and gross micro-architectural
deterioration in the proband’s bone, (b)
All parameters of cortical bone microarchitecture; T.Ar (periosteal area), B.Ar
(cortical mean cross-section area), Cs.Th (cortical thickness), T.Pm
(periosteal perimeter), and B.Pm (cortical bone perimeter) are significantly
lower in the proband compared to age and sex-matched healthy control, (c) Parameters of trabecular bone microarchitecture; Tb.Th (trabecular
thickness), and Tb.N (trabecular number) are decreased, while Tb.Sp (trabecular
separation) and SMI (structure model index) are increased in the proband’s
bone. All values are expressed as mean ± S.E.
*
p<0.05 and ** p<0. 01versus control</p
“The RBI archives provide a valuable resource for research scholars and others interested in India’s financial history” – Dr R L Sahoo
No full textThe LSE India Summit 2016 featured an exhibition of rare documents from the archives of the Reserve Bank of India. During the conference, Sonali Campion spoke to Chief Archivist Dr R L Sahoo about the RBI’s collection and the process of curating the LSE exhibition
Free-carrier-induced nonlinear dynamics in hybrid graphene-based photonic waveguides
No full textWe develop from first principles a theoretical model for infrared pulse propagation in graphene-covered hybrid waveguides. We model electron dynamics in graphene by Bloch equations, enabling the derivation of the nonlinear conductivity and of a rate equation accounting for free-carrier generation. Radiation propagation is modeled through a generalized nonlinear Schrödinger equation for the field envelope coupled with the rate equation accounting for the generation of free carriers in graphene. Our numerical simulations clearly indicate that unperturbed Kerr solitons accelerate due to the carrier-induced index change and experience a strong self-induced spectral blueshift. Our numerical results are fully explained by semianalytical predictions based on soliton perturbation theory
Heat-induced soliton self-frequency redshift in the ultrafast nonlinear dynamics of active plasmonic waveguides
No full textWe investigate the ultrafast nonlinear dynamics of light propagating in an active plasmonic waveguide composed of a thin film of gold sandwiched by two silicon layers immersed in externally pumped Al2O3:Er3+. We model optical propagation in such system through a generalized Ginzburg-Landau equation, finding that heating affects the temporal dynamics of dissipative solitons by inducing a self-frequency redshift accompanied by deceleration in the time domain. We further evaluate the dependence of the self-induced redshift by developing a semianalytical variational approach, providing analytical predictions that are in excellent agreement with direct numerical simulations of the generalized Ginzburg-Landau equation. Our results provide a general understanding of ultrafast nonlinear dynamics in gold-based active plasmonic waveguides, as in particular the spectral shaping properties of propagating optical pulses
Providing QoS in OSPF based best effort network using load sensitive routing
No full textIn an open shortest path first (OSPF) based best effort network, when a packet experiences congestion, the routing subsystem cannot send it through an alternate path. Thus, it fails to provide desired quality of service (QoS) during congestion. In order to provide QoS we have reported three different load sensitive routing (LSR) protocols in [A. Sahoo, An OSPF based load-sensitive QoS routing algorithm using alternate paths, in: IEEE International Conference on Computer Communication Networks, October 2002; A. Tiwari, A. Sahoo, Providing QoS support in OSPF based best effort network, in: IEEE International Conference on Networks, November 2005; A. Tiwari, A. Sahoo, A local coefficient based load sensitive routing protocol for providing QoS, in: IEEE International Conference on Parallel and Distributed Systems, July 2006]. The LSR protocol forwards packets through alternate paths in case of congestion. The number of alternate paths at any node depends on the value of operating parameter or coefficient used for alternate path calculation. Though the basic protocol in these cases was the same, the methods of choosing operating parameter were different. We referred to these three methods as LSR [A. Sahoo, An OSPF based load-sensitive QoS routing algorithm using alternate paths, in: IEEE International Conference on Computer Communication Networks, October 2002], E-LSR [A. Tiwari, A. Sahoo, Providing QoS support in OSPF based best effort network, in: IEEE International Conference on Networks, November 2005] and L-LSR [A. Tiwari, A. Sahoo, A local coefficient based load sensitive routing protocol for providing QoS, in: IEEE International Conference on Parallel and Distributed Systems, July 2006] coefficient methods. In this paper, we present the LSR protocol along with the three coefficient calculation methods pointing out the reason for going from one method to the next. The main strength of our LSR protocol is that it provides loop free alternate paths in the event of congestion and can interwork with routers running vanilla OSPF protocol. We show through simulation that the LSR protocol based on any of the three different coefficient calculation methods performs much better than OSPF and that out of the three methods proposed by us, L-LSR performs the best. (c) 2006 Elsevier B.V. All rights reserved
Hyers–Ulam stability of Sahoo–Riedel’s point
No full textAbstractIn this paper, we construct a counter example to show that “Theorem” of Hyers–Ulam Stability of Flett’s Point in [M. Das, T. Riedel, P.K. Sahoo, Hyers-Ulam stability of Flett’s points, Applied Mathematics Letters. 16 (3) (2003), 269–271] is incorrect. At the same time, we give the correct theorem and generalize it
Eutrachytes flagellates Moraza, Kontschan, Sahoo & Ansari 2016
No full textEutrachytes flagellates Moraza, Kontschán, Sahoo & Ansari, 2016 Records associated with mangroves: Divar Island, Mandovi estuary, Goa, India, pneumatophores of Avicennia officinalis having algal (Bostryschia sp.) growth (Moraza et al. 2016). Distribution: India.Published as part of Chatterjee, Tapas, Pfingstl, Tobias & Pešić, Vladimir, 2018, A checklist of marine littoral mites (Acari) associated with mangroves, pp. 221-240 in Zootaxa 4442 (2) on page 228, DOI: 10.11646/zootaxa.4442.2.2, http://zenodo.org/record/130307
The complexity of transnationalism: A case study of the British-Bangladeshi diaspora
No full textThis chapter from an edited book by Ajaya Sahoo will be a definitive handbook on South Asian diasporas. This chapter will focus on the British Bangladeshi experience and discuss the social, race, religious, political and social class dynamics of transnationalism
Indian Transnationalism: A Reader
No full textFaist T, Sahoo AK, Michael B, eds. Indian Transnationalism: A Reader. New Delhi: Rawat Publications; 2011
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
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