334 research outputs found
Impedance studies on PF6- doped Poly(3,4 ethylenedioxythiophene) Devices
No full textCarrier density, substrate and synthesis temperature dependent impedance measurements have been performed on Poly(3,4-ethylenedioxythiophene) PEDOT] based devices in metal/polymer/metal geometry at room temperature. The relaxation mechanism of carries in these devices can be varied as per the growth condition. It is observed that in stainless steel (SS)/PEDOT/Silver (Ag) devices, as the carrier density decreases the interface related mechanism takes control over bulk transport, but as the synthesis temperature is lowered the bulk transport dominates over interface related mechanism. The substrate dependent studies have shown that the electrode potential can alter the growth of polymer chains, which affects the relaxation mechanism of the carriers
Special Issue on “Recent Advances in Robust Adaptive Control”
No full textGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Team Bart De Schutte
Overcoming the underestimation and overestimation problems in adaptive sliding mode control
No full textUnderestimation and overestimation problems are commonly observed in conventional adaptive sliding mode control (ASMC). These problems refer to the fact that the adaptive controller gain unnecessarily increases when the states are approaching the sliding surface (overestimation) or improperly decreases when the states are getting far from it (underestimation). In this paper, we propose a novel ASMC strategy that overcomes such issues. In contrast to the state of the art, the proposed strategy is effective even when an a priori constant bound on the uncertainty cannot be imposed. Comparative results using a two-link manipulator demonstrate improved performance as compared to the conventional ASMC. Experimental results on a biped robot confirm the effectiveness and robustness of the proposed method under various practical uncertainties.Accepted Author ManuscriptShip Design, Production and OperationsDelft Center for Systems and ControlTeam Bart De Schutte
“The SCARE guidelines: Consensus-based surgical case report guidelines” [Int. J. Surg. 34 (2016) 180–186]((2016) 34 (180–186)(S174391911630303X)(10.1016/j.ijsu.2016.08.014))
No full textThe publisher regrets that there was an error in the author list of this paper. The members of the SCARE Group were not tagged as a collaborator group. This has now been corrected. The names of the collaborator group are as follows: Raafat Afifi, Cairo University Raha Al-Ahmadi, King Faisal Specialist Hospital and Research Centre Joerg Albrecht, John H. Stroger Jr. Hospital of Cook County Abdulrahman Alsawadi, Colchester Hospital University NHS Foundation Trust Jeffrey Aronson, Radcliffe Infirmary, Oxford M. Hammad Ather, Aga Khan University Mohammad Bashashati, Texas Tech University Health Sciences Center Somprakas Basu, Banarus Hindu University Patrick Bradley, Nottingham University Hospitals Mushtaq Chalkoo, Hyderpora Ben Challacombe, Guy's and St Thomas’ NHS Foundation Trust Trent Cross, James Cook University Laura Derbyshire, North West Deanery Naheed Farooq, Central Manchester University Hospital Foundation Trust Jerome Hoffman, University of California Los Angeles Huseyin Kadioglu, Bezmialem Vakif University Veeru Kasivisvanathan, University College London Boris Kirshtein, Soroka University Medical Center Roberto Klappenbach, Simplemente Evita Hospital Daniel Laskin, Virginia Commonwealth University Diana Miguel, University Hospital Jena James Milburn, Queens Medical Centre Seyed Reza Mousavi, Shohada Medical Center Tajrish Oliver Muensterer, University Medicine Mainz James Ngu, Changi General Hospital Iain Nixon, East Kent University Hospitals Ashraf Noureldin, Cumberland Royal Infirmary Benjamin Perakath, Dr. Gray's Hospital Nicholas Raison, King's College London Kandiah Raveendran, Fatimah Hospital Timothy Sullivan, Minneapolis Heart Institute Achilleas Thoma, McMaster University Mangesh Thorat, Wolfson Institue of Preventative Medicine, Queen Mary University of London Michele Valmasoni, Università di Padova Samuele Massarut, Centro di Riferimento Oncologico Aviano, Italy Anil D'cruz, Tata Memorial Hospital Baskaran Vasudevan, MIOT Hospitals Salvatore Giordano, Turku University Hospital Gaurav Roy, Medanta-The Medicity Donagh Healy, University Hospital Waterford David Machado-Aranda, University of Michigan Bryan Carroll, Eastern Virginia Medical School David Rosin, University of West IndiesThe publisher would like to apologise for any inconvenience caused
Tuberculosis susceptibility and protection in children
No full textChildren represent both a clinically important population susceptible to tuberculosis and a key group in whom to study intrinsic and vaccine-induced mechanisms of protection. After exposure to Mycobacterium tuberculosis, children aged under 5 years are at high risk of progressing first to tuberculosis infection, then to tuberculosis disease and possibly disseminated forms of tuberculosis, with accompanying high risks of morbidity and mortality. Children aged 5–10 years are somewhat protected, until risk increases again in adolescence. Furthermore, neonatal BCG programmes show the clearest proven benefit of vaccination against tuberculosis. Case-control comparisons from key cohorts, which recruited more than 15 000 children and adolescents in total, have identified that the ratio of monocytes to lymphocytes, activated CD4 T cell count, and a blood RNA signature could be correlates of risk for developing tuberculosis. Further studies of protected and susceptible populations are necessary to guide development of novel tuberculosis vaccines that could facilitate the achievement of WHO's goal to eliminate deaths from tuberculosis in childhood
Half a century of development economics : a review based on the"Handbook of Development Economics"
No full textDevelopment economics has made remarkable progress in 50 years, says the author, summarizing changes in the field since Nehru's first proposals for an independent India. Synthesizing insights about changes in the field from the many contributors to the"Handbook of Development Economics,"the author observes (among other things): 1) Different schools of thought may dominate, but the range of research has broadened. Economics has"hardened"as its practitioners have learned to use data more carefully and to reason more rigorously. 2) The policy message has been turned upside down. Gone is the idea that development is industrialization and that the main policy problem is to manage the interface between country and city. Today urbanization and industrialization are viewed as mere components of an integrated transformation, in which the expansion of foreign trade is central. Traditional institutions are viewed with far more understanding, because overhasty modernization has often proved counterproductive. 3) More than ever, development is seen as a"whole replacement"process, the key to which is mastery of Northern technology--now understood to be both simpler and more complex than previously thought. Simpler, because much technology is uncomplicated, and complex because even simple technology requires ingenuity and a costly investment in adaptations. 4) There has been a radical change in economists'view of market agents and policymakers. Gone are the days when economists thought their advice should be aimed mainly at planners. Policymakers are utility maximizers, too. Employees of state enterprises coalesce into powerful interest groups that block efforts to raise productivity. The new thinking is sometimes modified by evoking the vague concept of"governance,"under which the economist's view is to help design a system of interacting state and private institutions that, led by the state, cooperate in achieving social goals. Whether something useful will come from this line of thinking remains to be seen. The author detects major gaps in economists'undrstanding of development, suggesting a particular need for further study of collective action (a far more pervasive component of human action than is realized) and the selection of roles by individuals and the costly investment this entails (a concept that may shed light on Schumpeter's well-known but little-studied entrepreneur).Labor Policies,Economic Theory&Research,Health Economics&Finance,Environmental Economics&Policies,Decentralization,Health Economics&Finance,Poverty Assessment,Achieving Shared Growth,Economic Theory&Research,Environmental Economics&Policies
Gene diversity among some endogamous population of Amravati District, Maharashtra, India.
No full textThe present work deals with the distribution of ABO, Rh and sickling alleles as markers to study the genetic structure and micro-demarcation among castes and tribal populations from the Amravati district of Maharashtra. Three loci namely, ABO, Rh and sickling were selected to measure the relative frequency of respective alleles in ten (10) endogamous populations inhabiting the Amravati District. The ABO locus was found to be less polymorphic when compared with other loci. On the other hand, Rh and sickling loci were found to be more polymorphic. Construction of a dendrogram using allele frequency data reveals an interesting relationship among the caste and tribe. An analysis shows three major clades comprising A, B and C. Clade A comprises Islamic Dawoodi Bohra and Hindu Gujrati. Clade B comprises the upper castes, Brahmin, Jain, Kashmiris and Kunbis, while Clade C shows Gonds and Katchhi. This study is a first attempt to provide a genetic landscape of castes and tribes inhabiting the Vidarbha region. The findings are discussed in light of the historical, anthropological and genetic data available for the studied group
Multinationals or cooperatives: does it matter to farmers? A case study of the Indian dairy sector.
No full textSerial femtosecond crystallography of soluble proteins in lipidic cubic phase
No full textabstract: Serial femtosecond crystallography (SFX) at X-ray free-electron lasers (XFELs) enables high-resolution protein structure determination using micrometre-sized crystals at room temperature with minimal effects from radiation damage. SFX requires a steady supply of microcrystals intersecting the XFEL beam at random orientations. An LCP–SFX method has recently been introduced in which microcrystals of membrane proteins are grown and delivered for SFX data collection inside a gel-like membrane-mimetic matrix, known as lipidic cubic phase (LCP), using a special LCP microextrusion injector. Here, it is demonstrated that LCP can also be used as a suitable carrier medium for microcrystals of soluble proteins, enabling a dramatic reduction in the amount of crystallized protein required for data collection compared with crystals delivered by liquid injectors. High-quality LCP–SFX data sets were collected for two soluble proteins, lysozyme and phycocyanin, using less than 0.1 mg of each protein.View the article as published at http://journals.iucr.org/m/issues/2015/05/00/lz5008/index.htm
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