2,645 research outputs found
Board Interlocks and Their Impact on Corporate Governance: The Indian Experience - Coping with Corporate Cholesterol
Board interlocks occur when a director of one organization sits on the board of directors of another organization. The causes and consequences of these interlocks have been much debated in the western literature but comparatively little is known about interlocks in Indian corporate boards. Board interlocks are essentially analogous to cholesterol. Both are facts of life. Like good cholesterol, there are aspects of interlocking directorates that are beneficial and there are others that are detrimental to the corporation and its stakeholders and their respective interests. In this study, we find that board interlocks are quite widespread in India. Taking a (numerically) small but nevertheless (in terms of market capitalization) an important slice of available corporate data, we observed that in 2010, âhighly boardedâ directors (defined as those on the board of 5 or more listed NSE companies) who constitute just 6 percent of the overall pool of directors among NSE100 companies are associated with 486 NSE listed companies which account for a whopping 66 percent of the total market capitalization of all NSE listed companies. Interestingly, there appears to be a marked increase in market capitalization of these âhighly boardedâ companies, which these âhighly boardedâ directors are linked to over the last several years. For instance, for the 3 years from 2001 to 2003, the market capitalization of âhighly boardedâ companies ranged between 33 percent to 43 percent; it moved up to peak of 70 percent in 2007 and was at 66 percent in 2010 (the latest year in the study period). The substantive rise in market capitalization of these âhighly boardedâ companies has coincided with only a marginal increase (from 5% to 6%) in the proportion of âhighly boardedâ directorships. These trends suggest that despite the well-intentioned regulatory reforms (a) the extent of over-boarding/interlocking among directors has not come down (there is actually a marginal increase) and (b) there appears to be increasing concentration of power among key individuals. Given the general view that concentration of power in a few individuals or entities is not desirable in the larger interests of society, it would appear that the observed trends in the concentration of power among a handful of the countryâs corporate elite is a matter for substantive public policy concern. Finally, the regression analysis indicates a positive impact on Return on Assets (ROA) for âhighly boardedâ directors signifying a negation of the agency centric conceptualization on the role of multiple directors. Instead, connectedness variables (Eigen vector) which proxy for the Resource dependency hypothesis are quite strongly supported. In a nutshell, from public policy perspective, the analysis potentially reflects the âbad cholesterolâ elements of multiple directorships in terms of a tiny segment of âhighly boardedâ directors controlling a significant portion of the countryâs economic prowess, whereas the positive influences on company performance provide some evidence of the âgood cholesterolâ.
Web Services: Enabling Dynamic Business Networks
A Dynamic Business Network is a distinct system of participants (customers, suppliers, complimentors, competitors, service providers) that use the network to achieve customer satisfaction and profitability and where participants and relationships evolve over time. However, unpredictability and rapid change in a Dynamic Business Network creates a significant challenge in implementing and supporting business application software. Traditional information systems implementation methods require an a priori design and are built for a particular purpose for use over an extended period of time. Loosely coupled business networks change interrelationships between nodes both quickly and frequently, thus providing little or no notice for planning, implementing, or changing the supporting applications. The dynamic sourcing capabilities of the emerging Web Services framework provide a key to enabling these complex eco-systems. We explore the strategic and technological dimensions of Web Services and describe how they can be used to support dynamic business networks
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Paper-based electroanalytical devices with an integrated, stable reference electrode
This paper describes the development of a referenced Electrochemical Paper-based Analytical Device (rEPAD) comprising a sample zone, a reference zone, and a connecting microfluidic channel that includes a central contact zone. We demonstrated that the rEPADs provide a simple system for direct and accurate voltammetric measurements that are referenced by an electrode with a constant, well-defined potential. The performance of the rEPADs is comparable to commercial electrochemical cells, and the layout can be easily integrated into systems that permit multiplexed analysis and pipette-free sampling. The cost of this portable device is sufficiently low that it could be for single-use, disposable applications, and its method of fabrication is compatible with that used for other paper-based systems.Chemistry and Chemical Biolog
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Polymer-based mesh as supports for multi-layered 3D cell culture and assays
Three-dimensional (3D) culture systems can mimic certain aspects of the cellular microenvironment found in vivo, but generation, analysis and imaging of current model systems for 3D cellular constructs and tissues remain challenging. This work demonstrates a 3D culture systemâCells-in-Gels-in-Mesh (CiGiM)âthat uses stacked sheets of polymer-based mesh to support cells embedded in gels to form tissue-like constructs; the stacked sheets can be disassembled by peeling the sheets apart to analyze cultured cellsâlayer-by-layerâwithin the construct. The mesh sheets leave openings large enough for light to pass through with minimal scattering, and thus allowing multiple options for analysisâ(i) using straightforward analysis by optical light microscopy, (ii) by high-resolution analysis with fluorescence microscopy, or (iii) with a fluorescence gel scanner. The sheets can be patterned into separate zones with paraffin film-based decals, in order to conduct multiple experiments in parallel; the paraffin-based decal films also block lateral diffusion of oxygen effectively. CiGiM simplifies the generation and analysis of 3D culture without compromising throughput, and quality of the data collected: it is especially useful in experiments that require control of oxygen levels, and isolation of adjacent wells in a multi-zone format.Chemistry and Chemical Biolog
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Rapid fabrication of pressure-driven open-channel microfluidic devices in omniphobic RF paper
This paper describes the fabrication of pressure-driven, open-channel microfluidic systems with lateral dimensions of 45-300 microns carved in omniphobic paper using a craft-cutting tool. Vapor phase silanization with a fluorinated alkyltrichlorosilane renders paper omniphobic, but preserves its high gas permeability and mechanical properties. When sealed with tape, the carved channels form conduits capable of guiding liquid transport in the low-Reynolds number regime (i.e. laminar flow). These devices are compatible with complex fluids such as droplets of water in oil. The combination of omniphobic paper and a craft cutter enables the development of new types of valves and switches, such as âfoldâ valves and âporous switches,â which provide new methods to control fluid flow.Chemistry and Chemical Biolog
Knowledge attitude and practice of pharmacovigilance among nursing professionals in a tertiary care teaching hospital in Dehradun, Uttarakhand
Background: Pharmacovigilance deals with identification, assessment and prevention and reporting of adverse drug reaction (ADR), play a pivotal role in ensuring safe use of drugs. However, in spite of having well established ADR reporting system in India and worldwide, the ADR underreporting is a big challenge till date. It is therefore very important to assess the level of awareness of Pharmacovigilance among healthcare professionals to identify the factors affecting ADRs reporting. The objective of the study was to evaluate knowledge, attitude and practice of pharmacovigilance among nursing professionals in a tertiary care teaching hospital in Dehradun, India.Methods: It was a cross sectional observational study conducted at HIMS over a period of 1 year. Nursing professionals who work in internal medicine, Surgery, PAC and intensive care unit (ICU) were included in this study. A self-administered questionnaire comprising of 15 items related to ADRs and Pharmacovigilance programme of India (PvPI) activity was provided to them and sufficient time to fill the questionnaire was given. The completely filled questionnaire was collected and data was analyzed using SPSS ver.20.0.Results: A total of 415 participants were included in the study. The mean age of the participant was 28.52 years. The number of female was more than male participants. Majority of participant (56%) couldnât answer the meaning of pharmacovigilance. Only 25% participants were aware about ADR reporting process to ADR monitoring centre (AMC). Although majority of the participants understand the necessity of ADR reporting and aware about AMC centre and PvPI, but most of them showed unfamiliarity about ADR reporting form and previous experience of any kind of ADR. The most common reason for not reporting the ADR was difficulty in deciding the nature of adverse effects (AE) (44%) followed by lack of time (30%). Majority of participant (67%) denied any previous pharmacovigilance training and almost all (98%) have shown their interest in PvPI training.Conclusions: Nursing professionals in our hospital may lack adequate knowledge about ADR reporting and may need more education and training on the National Pharmacovigilance System and ADR reporting process
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Shifts in the Distribution of Mass Densities Is a Signature of Caloric Restriction in Caenorhabditis elegans
Although the starvation response of the model multicellular organism Caenorhabditis elegans is a subject of much research, there is no convenient phenotypic readout of caloric restriction that can be applicable to large numbers of worms. This paper describes the distribution of mass densities of populations of C. elegans, from larval stages up to day one of adulthood, using isopycnic centrifugation, and finds that density is a convenient, if complex, phenotypic readout in C. elegans. The density of worms in synchronized populations of wildtype N2 C. elegans grown under standard solid-phase culture conditions was normally distributed, with distributions peaked sharply at a mean of 1.091 g/cm3 for L1, L2 and L3 larvae, 1.087 g/cm3 for L4 larvae, 1.081 g/cm3 for newly molted adults, and 1.074 g/cm3 at 24 hours of adulthood. The density of adult worms under starvation stress fell well outside this range, falling to a mean value of 1.054 g/cm3 after eight hours of starvation. This decrease in density correlated with the consumption of stored glycogen in the food-deprived worms. The density of the worms increased when deprived of food for longer durations, corresponding to a shift in the response of the worms: worms sacrifice their bodies by retaining larvae, which consume the adults from within. Density-based screens with the drug Ivermectin on worms cultured on single plates resulted in a clear bimodal (double-peaked) distribution of densities corresponding to drug exposed and non-exposed worms. Thus, measurements of changes in density could be used to conduct screens on the effects of drugs on several populations of worms cultured on single plates
Economic crisis in the European periphery: An Assessment of EMU Membership and home Policy Effects Based on the Greek Experience
Our objective in this paper is threefold. First, to identify the major common shocks that hit these countries upon entry into the EMU. Second, taking Greece as our case study, to construct a simple macroeconomic model of the policies Greek governments pursued in the presence of these shocks, and to employ its solution so as to highlight the outcomes that were expected to result. From this endeavor, we find that the policies which were put in place led unavoidably to a severe economic crisis and eventual bankruptcy. Finally, in view of these findings and what happened in 2009,we raise and attempt to answer questions like, for example: How can we explain the policies that were adopted in the advent of monetary union shocks? Could they have been anticipated? And if so, why did they escape the attention of the designers of the Maastricht Treaty? The answer to which we are led by the analysis is that the shocks in all these countries were perceived by their governments as opportunities to hold on to their entrenched positions. That this happened, we conclude, reflects a failure in the mechanisms of economic convergence that were embedded in the Maastricht Treaty as well as in the effectiveness of European Union (EU) institutions that were empowered with their enforcement
Economic crisis in the European periphery: An Assessment of EMU Membership and home Policy Effects Based on the Greek Experience
Our objective in this paper is threefold. First, to identify the major common shocks that hit these countries upon entry into the EMU. Second, taking Greece as our case study, to construct a simple macroeconomic model of the policies Greek governments pursued in the presence of these shocks, and to employ its solution so as to highlight the outcomes that were expected to result. From this endeavor, we find that the policies which were put in place led unavoidably to a severe economic crisis and eventual bankruptcy. Finally, in view of these findings and what happened in 2009,we raise and attempt to answer questions like, for example: How can we explain the policies that were adopted in the advent of monetary union shocks? Could they have been anticipated? And if so, why did they escape the attention of the designers of the Maastricht Treaty? The answer to which we are led by the analysis is that the shocks in all these countries were perceived by their governments as opportunities to hold on to their entrenched positions. That this happened, we conclude, reflects a failure in the mechanisms of economic convergence that were embedded in the Maastricht Treaty as well as in the effectiveness of European Union (EU) institutions that were empowered with their enforcement
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