131 research outputs found
N-Swap, urban reinterpretation of Nehru Place, New Delhi, India
No full textThe project is the urban re interpretation of Nehru place, the largest Hub for sale of ITC related hardware and software in India. The design uses computational methodologies and swarm behaviors in analyzing, interpreting and developing the architecture.Hyperbody Graduation LabArchitectureArchitectur
Evaluation of the Cytotoxicity of Orthodontic Composite Incorporating Copper and Magnesium Hydroxyapatite Nanoparticles
No full textIntroduction: Nanoparticle-enhanced orthodontic adhesives have gained increasing attention for their potential to reduce enamel demineralization and provide antibacterial benefits without compromising material performance. Copper (Cu) and magnesium hydroxyapatite [Mg(OH)₂] nanoparticles, in particular, exhibit promising antimicrobial and biocompatible properties suitable for dental applications. However, integrating these nanoparticles into orthodontic bonding systems necessitates careful evaluation of their biological safety.
Objectives:This study aims to assess the cytotoxicity of Transbond XT adhesive incorporated with Copper (Cu) and Magnesium Hydroxyapatite Mg(OH)2 nanoparticles.
Methods: An orthodontic composite comprising equal proportions of Cu and Mg(OH)2 nanoparticles was synthesized using a hydrothermal method. Cu and Mg(OH)2 nanoparticles were mixed in ethyl alcohol, and the pH was adjusted to 10 - 10.5 with liquor ammonia. The mixture was then added to light-cured orthodontic adhesive (Transbond XT). After ultrasonic treatment and hydrothermal processing, the composite was characterized through SEM, FTIR, and EDAX analyses. The cytotoxicity test was performed on human fibroblast cells using various concentrations of the composite.
Results: SEM analysis revealed distinct surface characteristics. Orthodontic adhesive with Cu and Mg(OH)2 nanoparticles exhibited a smooth surface with rod-like structures. Cu and Mg(OH)2 mixture displayed a coarse, granular surface topography. FTIR confirmed specific functional groups. Peaks indicated the presence of Cu and Mg(OH)2 functional groups within the composite. EDAX analysis yielded quantitative elemental composition. Cytotoxicity assessment demonstrated an increasing cytotoxicity trend with rising particle concentration for all samples. Cell viability consistently above 60% for all concentrations. Notably, fibroblast cell viability at 50% concentration was 87%, indicating cytocompatibility.
Conclusions: The incorporation of Cu and Mg(OH)2 nanoparticles into Transbond XT adhesive yielded a composite with altered surface characteristics. FTIR and EDAX analysis confirmed the presence of specific functional groups and elemental composition. Cytotoxicity assessment indicated that the composite exhibited favorable cell viability, particularly at a 50% concentration, suggesting its potential for cytocompatibility
ICAS:MP Lecture by Niraja Gopal Jayal (Jawaharlal Nehru University)
No full textChair: Kalpana Kannabiran (Council for Social Development, Hyderabad) 23 September 2019 Venue: CSDS, Seminar Room, 6 pm – 8 pm Niraja Gopal Jayal is Professor at the Centre for the Study of Law and Governance at the Jawaharlal Nehru University, New Delhi. Her book Citizenship and its Discontents (Harvard University Press, 2013) won the Ananda Kentish Coomaraswamy Prize for 2015. She is also the author of Representing India: Ethnic Diversity and the Governance of Public Institutions (Palgrave ..
Rent - seeking trade policy : a time series approach
No full textUsing a time-series approach, the author analyzes the relationship between the extent of rent-seeking trade policy and both political and economic variables. For rent-seeking trade policy, the indicator he uses is the number of foreign-trade regulations passed each year for the benefit of a single firm or industry. The author uses data from Uruguay for 1925-83. Uruguay, which experienced an impressive economic decline, is an outstanding example of a rent-seeking society. After being a wealthy economy in midcentury, it suffered almost complete stagnation, which led to social and policital disintegration by the end of the 1960s. Three decades of restrictive regulations on foreign trade had created a nearly closed economy by the end of the 1960s. It was worth analyzing whether policymakers'great receptiveness to demands for protection could account for Uruguay's decline. Over the period 1925-83, the author finds almost 4,000 laws, decrees, and administrative resolutions that create, maintain, or modify a foreign-trade regulation for the benefit of a single firm or industry. About half of them explicitly identify the petitioner - usually a firm or guild. Since the size of the Uruguayan economy changed over the period studied, the author scales the annual number of regulations by output or exports to measure the extent of rent-seeking trade policy. The author shows that the extent of rent-seeking trade policy increased with discretionary policies and under dictatorship. (In the period studied, there were two stages of democracy - until 1932 and from 1943-72 - and two stages of dictatorship.) He also shows that rent-seeking trade restrictions increased under import-substitution strategies and, more unexpectedly, under active export promotion. This suggests that discretionary power leads to wasteful distribution, whether it is used to support inward- or outward-oriented policies. Finally, the author analyzes the correlation between innovations in the trade policy indicator and innovations in the growth rates of output and exports, with a lag of up to 20 years. Surprisingly, he finds a positive correlation with output growth rates after two or three years. But the correlation becomes negative some years later, particularly in the case of exports. The short-run positive impact on growth rates, together with the surprisingly long time lag before the negative impact, may account for policymakers'receptiveness to demands for protection.Trade Policy,Achieving Shared Growth,TF054105-DONOR FUNDED OPERATION ADMINISTRATION FEE INCOME AND EXPENSE ACCOUNT,Economic Theory&Research,Environmental Economics&Policies
A Diagnostic Study of Jawaharlal Nehru Port Trust
No full textThe Jawaharlal Nehru Port Trust (JNPT), an autonomous body under the Major Port Trusts Act, 1963, was commissioned on 26th May, 1989. The port was originally planned to decongest the Mumbai port and serve as a hub port for container handling for the region. JNPT became the first Indian port to handle more than 1 million TEUs (twenty foot equivalent unit, the measure used for container traffic) in 2000-01. In view of the increasing containerised trade, a third container terminal was tendered in October 2002 and awarded in August 2004 to Gateway Terminals of India Private Limited (GTIPL). GTIPL has begun the construction and operations are expected to begin by early 2006. As stated by the Department of Shipping, “The increased volume of container traffic has put a lot of strain on the existing (landside) infrastructure, leading to the problem of frequent congestion in the port.” The author was approached by the Ministry of Commerce for a diagnostic study of JNPT. The study was carried out during February to April 2005. As part of the study, it was decided to keep in perspective three scenarios of traffic: (i) upto 2.5 million TEUs, ie the current levels, (ii) upto 4 million TEUs, ie from mid 2006 as GTIPL becomes operational and (iii) beyond 4 million TEUs, when the fourth box terminal is made operational. This paper presents the analysis and recommendations of the study.
Voucher funds in transitional economies : the Czech and Slovak experience
No full textVoucher funds have arisen in the transitional economies of Eastern and Central Europe that have used voucher privatization. These funds collect vouchers from citizens and use them to buy shares in enterprises. In the Czech and Slovak Republics, voucher funds are typically organized as corporations owned by the citizens who contributed their vouchers. Recently, they have also been organized as unit trusts (either open-ended or closed). A management company manages the funds under a contract that specifies the management fee. The management company is typically owned by the initial sponsor of the fund - for example, a bank. Voucher funds can give owners a diversified and professionally managed portfolio. More important, the funds select who sits on an enterprise's governance boards (which oversee management and profitability). Although experience is limited, the funds in these two countries have probably stopped most fraud and self-serving by enterprise mangers and are beginning to encourage the restructuring needed for profitability. A few funds have replaced poorly performing or dishonest managers; more often, because qualified replacements are few, they encourage managers to improve performance. There have been complaints about funds'performance. Some have made unrealistic promises to voucher holders and have appointed poorly qualified members to management boards. There is concern about conflicts of interest in the bank-sponsored funds and excessive control of enterprises. Funds typically lack capital or expertise to undertake restructuring - but few other potential owners are likely to be better qualified. The author examines 27 regulations that have been proposed for funds. Regulations in transitional economies, unlike regulations in most western countries, should encourage funds to play a strong role in corporate governance, he contends, as few potential owners have this ability. Most important, regulations should require that funds disclose information about their operations so their owners can monitor and control fund managers. The regulatory regime, the author says, should discourage monopolies and anticompetitive behavior; create incentives for fund managers to improve fund performance; discourage self-serving or fraudulent behavior by fund managers, and conflicts of interest; and eliminate high-risk investments unacceptable to fund owners. Because there is so little experience with these funds, the regulatory regime should not be unduly restrictive. As problems arise, regulations to deal with them can be added.International Terrorism&Counterterrorism,Economic Adjustment and Lending,Economic Theory&Research,Agricultural Knowledge&Information Systems,Payment Systems&Infrastructure
About the Author
No full textDr. Swaran Singh is Associate Professor at the School of International Studies, Jawaharlal Nehru University (New Delhi) and Academic Consultant at Centre de Sciences Humaines (New Delhi). Dr. Singh has been formerly Visiting Professor, University of Peace (Costa Rica), and Beijing University (Beijing), Visiting Fellow of the Shanghai Institute of International Studies, Center for Asian Studies (Hong Kong University), Guest Faculty at Stockholm International Peace Research Institute (Sweden), ..
The ‘Social’ and the ‘Cognitive’ in Language. A Reading of Saussure, and Beyond
No full textFranson Manjali, The ‘Social’ and the ‘Cognitive’ in Language. A Reading of Saussure, and Beyond, FMSH-WP-2012-15, july 2012. Pour télécharger ce Working Paper depuis HALSHS The author Professor at School of Language, Literature, and Cultural Studies, Jawaharlal Nehru University (JNU), New Delhi. Teaching at JNU since 1989. Prior to that, two years of post-doctoral research in Paris (Université Paris-4 Sorbonne and EHESS). Doctorate from Jawaharlal Nehru University in 1986. Franson Manjali wa..
Some Aspects of the External Dimensions of Indian Economy in the Age of Globalisation
No full textPar ampersandyslexia Working paper de Byasdeb Dasgupta, docteur en économie de l’Université Jawaharlal Nehru University, New Delhi, Some Aspects of the External Dimensions of Indian Economy in the Age of Globalisation. FMSH-WP-2013-30, avril 2013. Pour télécharger ce document sur HALSHS The author Docteur en économie de l’Université Jawaharlal Nehru University, New Delhi, Inde, Byasdeb Dasgupta consace sa thèse de doctorat (1996) à un sujet relatif aux problèmes des politiques gestion de la d..
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