4,319 research outputs found
Supplementary material - Supplemental material for Efficient Production of the Potent Antimicrobial Metabolite “Terrein” From the Fungus <i>Aspergillus terreus</i>
No full textSupplemental material, Supplementary material, for Efficient Production of the Potent Antimicrobial Metabolite “Terrein” From the Fungus Aspergillus terreus by Jyoti Goutam, Ravindra Nath Kharwar, Vinod Kumar Tiwari, Ranjana Singh and Divakar Sharma in Natural Product Communications</p
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Patterns of Financial Behavior Among Rural and Urban Microfinance Clients: Evidence from Tamil Nadu, India (Executive Summary)
No full textThis is the 2-page executive summary for the IMTFI Working Paper: Patterns of Financial Behavior Among Rural and Urban Microfinance Clients: Evidence from Tamil Nadu, India.Over the past decade, development planners in India and beyond have increased their efforts at targetting financial inclusion as a means of poverty alleviation. However, the nature of poverty and deprivation, the livelihoods, and the financial needs of the poor vary widely across rural and urban India. The study by IMTFI researchers Lakshmi Kumar and Jyoti Prasad Mukhopadhay seeks to identify some key differences in the financial behavior of the rural and urban poor as an essential step towards designing more targeted financial tools. The study used financial diaries to collect data on income, consumption, savings, loans, and insurance from a sample of poor households over a period of six months
Gender and climate change framework for analysis, policy & action
No full text"This paper by Jyoti Parikh provides a framework to anlayse gender and climate change concerns keeping in view the strengths and vulnerability of poor ‐ women in particular. The author also provides policy recommendations for policies and actions.
Investigating reengineering teams in the context of business process change
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 27/06/2000.This research is concerned with investigating reengineering teams in the context of business process change, or more widely known, business process reengineering (BPR). Business Process Change, on the one hand, is still considered as being an approach that is required in recent times. Reengineering teams (teams that are involved with the planning, analysis and design of the approach) on the other hand, have been viewed to be essential for the development and implementation of BPR. Bearing these points in mind, it was discovered that although the reengineering teams area warrants attention, there has been little attention paid to it.
In the reengineering area, specifically, this research aims to address two main issues: first, the role of reengineering teams in business process change and second, the human and organisational aspects that surround the teams. For this, the research applied several steps and they are described in the following paragraphs.
To discover the role of the reengineering teams in the context of business process change, it was initially assumed that the foundations of the BPR lie in organisational change. Using this assumption, it became simpler and clearer to determine the exact role of teams. With regards to the human and organisational aspects, a strategy unique to the topic was adopted. At the outset, some human and organisational aspects that are more commonly found in the organisational behaviour and psychology areas were revealed and research with regards to these particular aspects was described.
Whilst that was the theoretical side of the research, the research then had to determine whether the deductions formed from the theoretical side were evident in practice. For the empirical results, the research used a combination of approaches in order to obtain the desired results. A qualitative approach that has its foundations in Interpretivism was the methodology used in the research. The ontology assumed then that subjective meanings could be assumed to reconstruct reality. Evidence from practice was obtained using initially, two pilot studies. Further, a multiple case study strategy and the research techniques of mainly, interviews and referring to archival documents were utilised.
Once the data was analysed, a theory that could be used for future research in the reengineering teams area was developed. This was arrived at using a combination of certain grounded theory techniques, particularly, the forming of categories and coding. The findings suggested that reengineering teams are imperative for BPR and that some of the selected human and organisational aspects are evident in the newly formed theory
Cobalt corroles: Synthesis and applications
No full textCobalt corrole chemistry has become its own corpus of corrole literature in recent years, with findings involving synthesis, catalysis, sensing, electrocatalysis, etc reported with increasing frequency. Cobalt is abundant and biologically essential (e.g., cobalamin). Since Co metallocorroles are relatively straightforward to synthesize, this makes Co corroles already a practical and sustainable macrocycle class suitable for further research and &quot;post functionalization.&quot; In addition, the metal is redox active and (therefore) vastly catalytically active. The versatility of redox active cobalt as a central atom in corroles helps achieve oxidation states ranging from Co 1+ to Co 5+ ; this has allowed researchers to synthesize, and therefore experimentally access, the chemistry of a large number of cobalt metallocorroles that have been substituted with various groups at the beta -, meso -, or axial- positions. From these published examples, a wide array of structural properties and characteristics continue to unfold; a review is now due to help focus the researchers concentrating on this area to enable for outstanding future investigations. Their stabilization into different oxidation states has also made Co corroles valuable and heavily pursued in electrocatalysis . These complexes are frequently used for oxygen and reduction reactions, hydrogen evolution reactions (HERs), and oxygen evolution reactions (OERs). Co-corroles have thus widespread usage beyond catalysis per se , including sensing of anions and various gas molecules and, in some cases, small molecule activation. When N 2 and O 2 are present, Co complexes may preferentially bind and detect CO. This current review helps (i) summarize the accomplishments to date in synthesis and characterization, (ii) consolidate all the key characteristics of cobalt corroles within a common area of access, and (iii) expand our understanding of how these &quot;active&quot; macrocycles might be used across different scientific and technological disciplines (see future work section).
Intensity-driven resurgence of reverse saturable absorption and vibrational modes in hexagonal silver nanoplates
No full textWe report a correlation between the unique third-order optical nonlinearity and mechanical vibrational modes in hexagonal silver nanocrystals (AgNCs-550) having localized surface plasmon resonance (LSPR) at 550 nm. By femtosecond laser pulses, we measured nonlinear absorption (NLA) and nonlinear refraction (NLR), revealing the dual resurgence of reverse saturable absorption (RSA) as a function of pump intensity. Both on-resonant and off-resonant pumping of AgNCs-550 exhibit saturable absorption (SA) with an RSA-SA-RSA feature. The intensity threshold of the reappearance of the RSA effect is lower with the red edge pumping of the LSPR band. SA can be attributed to both single-photon and two-photon absorption saturation effects, whereas RSA can be attributed to two-photon absorption (2PA) and three-photon absorption (3PA). Femtosecond transient absorption (TA) spectroscopy further revealed mechanical vibrational modes with distinct quality factors, in line with finite-element modeling (FEM). In the case of TA, red-edge pumping shows an intensity-dependent change in vibrational modes, possibly due to lattice softening. Temperature enhancement calculations in AgNCs-550 reveal that higher laser intensity leads to a significant temperature rise, further supporting its correlation with lattice softening, particularly under red-edge pumping. Additionally, utilizing FEM, we demonstrate local field enhancement (LFE) at the corners and edges of the nanocrystals. We observe the enhancement of the nonlinear refractive index in the off-resonant excitation due to higher-order nonlinearities. Femtosecond (fs) TA, along with resonant and off-resonant third-order optical nonlinearity, suggest the suitability of AgNCs-550 as an excellent candidate for nanophotonic and optoelectronic applications
Design of a PD like Fuzzy Logic Controller for Precise Positioning of a Stepper Motor
No full textDesigning of controllers for control of various motors has been an exciting field for the researchers. Talking of controllers, PID controllers are the most popular among the various industries. Nowadays Fuzzy Logic Controllers (FLC) and PID like FLCs are very famous due to its robust design, faster response and accuracy. In this paper we have proposed a novel method to control a stepper motor with PD like FLC that can handle one sided errors like those in tracking problem such as tracking the Sun and maximum power point in PV array system. During simulation it is seen that the controller can easily handle different errors without much of oscillations. The speed of response mainly depends on the step size of the stepper motor.Keywords: Tracking problem, PD like Fuzzy Logic Controller, Stepper motor control. Matlab/Simulink, Fuzzy Logic toolbox.*Cite as: Jyoti Kumar Barman, Pushpanjalee Konwar, Gitu Das, “Design of a PD like Fuzzy Logic Controller for Precise Positioning of a Stepper Motor†ADBU J.Engg.Tech., 1(2014) 0011407(4pp
Intensifying levulinic acid hydrogenation using mechanochemically prepared copper on manganese oxide catalysts
No full textA series of copper nanoparticles supported on manganese oxide octahedral molecular sieves (OMS-2) were prepared using mechanochemical (Ball-Mill) and conventional wet-impregnation (Wet-Imp) methods. All catalysts prepared were thoroughly characterized using ICP-OES elemental analysis, X-ray diffraction (XRD), N2 sorption, H2 temperature programmed reduction (TPR) and transmission electron microscopy (TEM) techniques. The catalyst preparation methods greatly affected the size of the Cu nanoparticles. TEM images showed that 5 wt% Cu/OMS-2 (Ball-Mill) catalyst had a narrow particle size distribution with an average Cu nanoparticle size of 2.1 nm, while the corresponding 5 wt% Cu/OMS-2 catalyst prepared using wet-impregnation method had an average Cu nanoparticle size of 19.2 nm. The structural features of the catalysts were corelated with the catalytic activity using the liquid phase hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL), as an exemplar process. In LA hydrogenation at 190 °C and 20 bar H2 pressure, the ball milled catalysts achieved higher LA conversion, and greater GVL yield, as compared to the corresponding catalysts prepared by wet-impregnation method, reinforcing that Cu nanoparticle size and metal dispersion are important tool to intensify the catalytic activity. For instance, 5 wt% Cu/OMS-2 (Ball-Mill) catalyst achieved almost twice the turnover frequency (TOF), 24.7 h−1 as compared to the 5 wt% Cu/OMS-2 (Wet-Imp) catalyst, TOF 11.8 h−1, under identical reaction conditions. The results of this study demonstrate that ball milling is a superior method for Cu/OMS-2 catalyst preparation than wet impregnation.<br/
sj-docx-1-tai-10.1177_20499361221080650 – Supplemental material for Analysis of colistin resistance in carbapenem-resistant Enterobacterales and XDR Klebsiella pneumoniae
No full textSupplemental material, sj-docx-1-tai-10.1177_20499361221080650 for Analysis of colistin resistance in carbapenem-resistant Enterobacterales and XDR Klebsiella pneumoniae by Raunak Bir, Hitender Gautam, Nazneen Arif, Priyanka Chakravarti, Jyoti Verma, Sayantan Banerjee, Sonu Tyagi, Sarita Mohapatra, Seema Sood, Benu Dhawan, Rama Chaudhry, Arti Kapil, Bimal Kumar Das and Bhabatosh Das in Therapeutic Advances in Infectious Disease</p
Administration of International Instruments on Human Rights in India to Ensure Elimination of Discrimination Against Women with Special Reference to Cedaw
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