67 results on '"Das, Niladri"'
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2. Nanostructured bi-metallic Pd–Ag alloy films for surface-enhanced Raman spectroscopy-based sensing application.
- Author
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Das, Niladri Mohan, Chauhan, Avantika, Bharati, M. S. S., Bera, Kousik, Kumar, Satani Sampath, Soma, Venugopal Rao, Chawla, Amit Kumar, Rath, Shyama, and Avasthi, Devesh Kumar
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RAPID thermal processing ,SERS spectroscopy ,GENTIAN violet ,VACUUM chambers ,THIN films - Abstract
In the present work, thin films of bimetallic palladium–silver (Pd
50 Ag50 and Pd70 Ag30 ) alloy on silicon substrates are deposited by direct current magnetron cosputtering in a vacuum chamber at a pressure of 10−7 Torr. The formation of the alloy is confirmed by the shift of x-ray diffraction peaks as compared to the pure phases of the metals. The films are subjected to rapid thermal annealing at 500 °C for 120 s. Surface-enhanced Raman spectroscopy (SERS) is performed for low level detection of two analytes: crystal violet (dye) and tetryl (an explosive). The SERS signals are observed only in the case of the rapid thermal annealed films. The lowest concentration of the dye detected with Pd50 Ag50 is 100 μM. In comparison, it is 250 μM for Pd70 Ag30 , indicating that a higher content of silver in the alloy is desirable from a SERS perspective due to its more robust plasmonic activity. [ABSTRACT FROM AUTHOR]- Published
- 2024
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3. Too little or too much? The curvilinear relationship between corporate social responsibility disclosure and investment efficiency in BRICS economies.
- Author
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Gupta, Jyotirani and Das, Niladri
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SOCIAL accounting ,SOCIAL responsibility of business ,PERCEIVED benefit - Abstract
This research article investigates the complex relationship between corporate social responsibility disclosure (CSRD) and investment efficiency in the BRICS economies (Brazil, Russia, India, China, and South Africa). Through the lens of signaling theory, the study examines how CSRD serves as a signal to stakeholders and influences firms' investment decisions. A comprehensive dataset spanning 9240 firm‐year observations from 2011 to 2021 is analyzed to derive insights. The study reveals a multifaceted association between CSRD and investment efficiency. Initially, CSRD is found to increase signal costs, resulting in higher investment inefficiency. However, this effect is observed only up to a certain threshold. Beyond this point, CSRD starts reducing investment inefficiency, primarily due to improved signal benefits and perceived value. Additionally, the study introduces CSR assurance as a crucial moderator that influences the complex interplay between CSRD and investment efficiency. In summary, this research offers valuable insights into the strategic role of CSRD in BRICS economies, highlighting the significance of signal dynamics and the moderating impact of CSR assurance. Such insights can guide businesses and policymakers in these economies as they navigate the intricate landscape of CSR disclosure and its implications for efficient resource allocation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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4. Navigating the trade‐off between corporate social responsibility disclosure and the cost of financing: Evidence from BRICS economies.
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Gupta, Jyotirani and Das, Niladri
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SOCIAL accounting ,CAPITAL costs ,INVESTORS ,BOND market ,EMERGING markets - Abstract
This study investigates the relationship between corporate social responsibility disclosure (CSRD) and the cost of financing for firms in emerging economies. Results show that CSRD initially reduces the cost of equity financing but increases equity costs beyond a certain threshold. Firms should weigh the trade‐offs of signal cost and benefits when choosing financing strategies. Moreover, investors in the debt market perceive a higher level of board independence as less risky, which consequently has a negative impact on the relationship between CSRD and the cost of debt. Thus, companies should streamline their CSR disclosures to reduce their cost of capital. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Spatial transformation of land use and land cover and identification of hotspots using geospatial technology: a case of major industrial zone of eastern India.
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Das, Niladri, Ghosh, Ranajit, Sutradhar, Subhasish, Sana, Rejaul Islam, Ghosh, Chandan, and Maji, Gosai
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LAND cover ,LAND use ,AUTOCORRELATION (Statistics) ,NATURAL resources ,COAL mining - Abstract
Technology-driven population expansion is closely linked to land use change. Unregulated mining, urbanization, industrialization, and forest clearing threaten land use and cover. This study used GIS and statistical methods to examine land use and cover changes in eastern India's Asansol-Durgapur Development Authority (ADDA). The Kappa coefficient was used to validate each year's LULC map accuracy. This region is changing rapidly due to industrial and urban development, which might cause environmental issues. Thus, this area is ideal for a scientific land-use change study. The central hypothesis of this study is that the LULC of an industrial area is spatially heterogeneous and that the number of hotspots is gradually increasing in response to the dynamicity of land use change over time and space. Three years (1992, 2007, and 2022) were used to determine the estimated transition rate. Hotspots of land use change were identified using autocorrelation statistics for LULC clustering using Moron's I and Gi Z statistics. The proportion of land encompassed by natural vegetation experienced a decline from 12% in 1992 to 4% in 2022. Similarly, the extent of land occupied by agricultural activities decreased from 47 to 38% during the period spanning from 1992 to 2022. The industrial and coal mining sectors experienced a modest growth rate of 1% during the period spanning from 1992 to 2022. If the current rate of land use change persists, it will gradually and consistently alter the existing landscape. This study's findings can potentially inform strategies to mitigate the adverse impacts of industrialization and urbanization on the region's natural resources. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Explanation of major determinants of poverty using multivariate statistical approach and spatial technology: a case study on Birbhum district, West Bengal, India.
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Ghosh, Ranajit, Das, Niladri, and Mondal, Prolay
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GEOGRAPHIC information systems ,POVERTY ,FACTOR analysis ,SOIL texture ,RAINFALL ,SOCIAL workers ,PLATEAUS - Abstract
Poverty is not only the focal issue that has drawn worldwide attention but is also an essential issue in people's livelihoods. This research examines the primary factors of poverty in the Birbhum district. Multivariate statistical techniques have been used to identify the primary determinants. Ten parameters have been identified as significant drivers of poverty, six of which are physical, viz. slope, elevation, drainage density, pond frequency, soil texture, and rainfall. The remaining four sociocultural and economic parameters are literacy, major market center, population growth, and road density. A linear relationship has been established between the explanatory and response variables where the R-square or coefficient of determination value is 0.741, and this relationship explains more than 74% of the variables. The P-value of multi-linear regression is 0.000, which validates the model and permits the data for factor analysis to extract the major determinants. Factor analysis indicates that five essential factors have been found based on their eigenvalue viz., agro-climatic factor, infrastructural and educational factors, hydrological factor, demographic factor, and pedological factors. All the p-values of the correlation matrix are < 0.05, meaning all the relationships are valid and significant. This research also demonstrates the spatial analysis of data using GIS technology. The western part of the study area has been affected by the high influence of all factors due to the presence of plateau fringe and associated low productivity. The outcomes of the research are scientifically significant and this study helps the planners, higher authorities, and social workers to eradicate poverty from this region through formulating better policies and management. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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7. A comparative evaluation of GIS based flood susceptibility models: a case of Kopai river basin, Eastern India.
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Ghosh, Ranajit, Sutradhar, Subhasish, Das, Niladri, Mondal, Prolay, and Sana, Rejaul Islam
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GEOGRAPHIC information systems ,RECEIVER operating characteristic curves ,UNCERTAINTY (Information theory) ,RAINFALL ,NATURAL disasters ,WATERSHEDS ,LAND cover - Abstract
Each year, floods are one of the most common natural disasters, wreaking havoc on ecosystems, human settlements, and individual lives all around the globe. Numerous factors, including flood intensity, amplitude, frequency, flow duration, changes in river course and geometry, etc., affect flooding's effectiveness. Shannon's entropy, frequency ratio, and weight of evidence have been used to identify flood susceptibility in the Kopai river basin. According to the results of these three models, the upper reach of the basin is comprised of non-flooded areas, while the lower part of the basin is home to extensive flooding. This makes the lower part of the basin more susceptible than the upper part. The final result of flood susceptibility zones is obtained using 11 thematic layers such as rainfall, soil moisture index, soil types, surface roughness,distance to the river, elevation, slope, drainage density, land use and land cover, normalised difference vegetation index, and normalized difference water index. Receiver operating characteristics curves have been produced using test data consisting of 370 data points to determine the validation of the models. The validation result demonstrates that the frequency ratio is 96.5% accurate. The weight of the evidence is 97.1% reliable, whereas Shannon entropy provides just 91.2% acuracy. Weight of evidence is therefore the best model for flood susceptibility zones identification for this Kopai river basin. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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8. Sustainable Strategies for the Indian Coal Sector: An Econometric Analysis Approach.
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Mishra, Animesh, Das, Niladri, and Chhetri, Prem
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Thermal power generation based on coal has been identified as the second largest polluting industry due to the greenhouse gas emissions caused by coal combustion. The pollution caused by this industry is not limited to power generation, but it also manifests itself throughout the use of products. Although a huge emphasis has been placed on replacing coal-based power generation with renewable resources, we showed that Indian power generation will depend on coal for more than fifty percent of its demand in the near future. In our study, we utilized a combination of linear cointegration, non-linear cointegration, ARIMA, and the VECM to forecast the use of coal based on the Indian industrial index and the amount of electricity generated through coal combustion required to meet the demand. Given that pollution and carbon emissions are inherent in the coal usage cycle, we drafted policy implications and recommendations to mitigate the consequences, green the coal usage cycle, and improve the coal supply chain. [ABSTRACT FROM AUTHOR]
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- 2023
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9. Non-Monotonic Relationship between Corporate Governance and Banks' Operating Performance—The Moderating Role of CEO Duality: Evidence from Selected Countries.
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Enam, Marghoob, Shajar, Syed Noorul, and Das, Niladri
- Abstract
This study examines the non-monotonic (U-shaped, inverted U-shaped or curvilinear) relationship between the corporate governance (CG) and bank performance of commercial banks operating across four countries whose CG framework is based on the OECD principals of CG. Using a dataset of 4230 bank-years observation from 2012–2021, the study shows that governance–performance relations may be non-monotonic but not U-shaped using a two-line approach and the Robin Hood algorithm. In addition, this study, using feasible generalized least squares (FGLS), empirically shows that the interaction effect of CEO duality on governance–performance relations in financial institutions is curvilinear and significantly moderates and reverses these impacts. The findings reveal that, in financial institutions with CEO duality, there is a far more modest association between CG and performance, which has an inverted-U shape and is curvilinear. The findings are consistent with arguments advanced by resource dependence and stewardship theory that, although duality might increase bank performance through joint leadership, it can benefit the bank in the presence of unity of command. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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10. Improved NMR‐data‐compliant protein structure modeling captures context‐dependent variations and expands the scope of functional inference.
- Author
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Das, Niladri R., Chaudhury, Kunal N., and Pal, Debnath
- Abstract
Nuclear magnetic resonance (NMR) spectroscopy can reveal conformational states of a protein in physiological conditions. However, sparsely available NMR data for a protein with large degrees of freedom can introduce structural artifacts in the built models. Currently used state‐of‐the‐art methods deriving protein structure and conformation from NMR deploy molecular dynamics (MD) coupled with simulated annealing for building models. We provide an alternate graph‐based modeling approach, where we first build substructures from NMR‐derived distance‐geometry constraints combined in one shot to form the core structure. The remaining molecule with inadequate data is modeled using a hybrid approach respecting the observed distance‐geometry constraints. One‐shot structure building is rarely undertaken for large and sparse data systems, but our data‐driven bottom‐up approach makes this uniquely feasible by suitable partitioning of the problem. A detailed comparison of select models with state‐of‐art methods reveals differences in the secondary structure regions wherein the correctness of our models is confirmed by NMR data. Benchmarking of 106 protein‐folds covering 38–282 length structures shows minimal experimental‐constraint violations while conforming to other structure quality parameters such as the proper folding, steric clash, and torsion angle violation based on Ramachandran plot criteria. Comparative MD studies using select protein models from a state‐of‐art method and ours under identical experimental parameters reveal distinct conformational dynamics that could be attributed to protein structure–function. Our work is thus useful in building enhanced NMR‐evidence‐based models that encapsulate the contextual secondary and tertiary structure variations present during the experimentation and expand the scope of functional inference. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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11. Acromegaly - Case Series.
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Tarenia, Silima Subhasnigdha, Chakraraborty, Puranjoy, Das, Niladri, and Baidya, Arjun
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ACROMEGALY treatment ,BIOCHEMISTRY ,PHYSICAL diagnosis ,SKIN diseases ,ECHOCARDIOGRAPHY ,ULTRASONIC imaging ,ENDOSCOPIC surgery ,MAGNETIC resonance imaging ,ACROMEGALY ,ERGOT alkaloids ,ENDOSCOPY - Abstract
Acromegaly is a clinical syndrome with isolated cases globally. Patients may remain undiagnosed for several years after the onset of initial signs and symptoms. Timely diagnosis and initiation of its treatment play a crucial role in patients with acromegaly. In this article, we present physical, biochemical, and radiological characteristics in a set of 6 cases that may aid in prompt diagnosis and appropriate management of acromegaly. [ABSTRACT FROM AUTHOR]
- Published
- 2023
12. Revisiting the influence of corporate sustainability practices on corporate financial performance: An evidence from the global energy sector.
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Kumar, Ajay, Gupta, Jyotirani, and Das, Niladri
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SUSTAINABILITY ,ORGANIZATIONAL performance ,CORPORATE sustainability ,FINANCIAL performance ,ENERGY industries ,SUSTAINABLE development reporting - Abstract
The purpose of this study is to theoretically and empirically extend the debate of the curvilinear linkage between corporate sustainability performance and its reporting practices (CSPR) and corporate financial performance (CFP) over its linearity assumption. The study focused on the financial and non‐financial metrics of the top global energy firms from 2006 to 2018 to accomplish this objective. It employed an estimated generalized least square method on the balanced panel of 3211 firm‐year observations. The findings assert the existence of a curvilinear relationship by spurning the linearity assumption. Further, results revealed a significant inverted U‐shaped relationship between CSPR and CFP. In addition to this, the investigation reveals that this relationship exists with the environmental and social attributes of CSPR. While the governance attribute was initially insignificant, however, it also exhibits a significant inverted‐U relationship after interacting with earnings. As a result, it adds to the existing literature by identifying earnings as a significant moderator in explaining the curvilinear relationship between CSPR and CFP. The inverted U‐shaped relationship may assist top management in developing a sustainable social and environmental policy based on a reactive strategy and help in formulating strategies to balance the value‐cost trade‐off for sustainable development. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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13. Do female directors drive intellectual capital performance? Evidence from Indian listed firms.
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Smriti, Neha and Das, Niladri
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INTELLECTUAL capital ,WOMEN directors of corporations ,OUTSIDE directors of corporations ,AGENCY theory ,EMERGING markets ,DIVERSITY in the workplace ,HUMAN capital ,FEMALES - Abstract
Purpose: The purpose of this paper is to investigate the significance of board gender diversity (BGD) on the firm's intellectual capital (IC) performance of 272 Indian firms listed on the National Stock Exchange during 2007–2019. Considering the recent regulatory amendment by the Indian regulatory system (Security Exchange Board of India, 2018) which mandates at least one female independent directors on boards of all listed companies. Design/methodology/approach: Based on theories and literature reviews, hypotheses were developed. This paper uses the proportion of female director on board and proportion of female independent directors to measure BGD and modified value-added intellectual coefficient (MVAIC) methodology to measure firms' IC performance. Two-step system-generalised method of moment panel data regression analysis has been employed to identify the variables that significantly affect IC performance. Findings: This paper finds female representation on boards has a significant impact on MVAIC; capital employed efficiency shows the strongest association with female directors on board, followed by structural capital efficiency and human capital efficiency, while relational capital efficiency shows no significant effect. The results further demonstrate that female independent director has a significant but negative impact on IC. Research limitations/implications: As the study is limited to the listed firms of an emerging economy with a mandatory female quota for boards. Thus to increase the generalizability of findings, future research can be extended to include all listed and non-listed firms from another emerging economy with a mandatory female quota. Practical implications: From the practical perspective, this study bridges the gap between theory and practice in terms of providing a deeper understanding to the policymakers and Indian regulatory bodies like the Ministry of Corporate Affairs and Securities Exchange Board on the importance of including female members on board as a vital contributing factor for leveraging firm's intangible performance. Originality/value: Using resource dependency theory and agency, this study extends the literature on IC efficiency and female representation on boards by presenting the research outcome for Indian listed firms. This paper, addressing the recent changes introduced by Indian regulators and using the female independent directors on board, is amongst the first attempts to assess the relevance of BGD and IC performance. This issue has still not been discussed and analysed by researchers in India. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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14. Analysis of Blood Group Discrepancy in Healthy Blood Donors at a Tertiary Care Referral Hospital from Eastern India: A Retrospective Study.
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Sahu, Ansuman, Prakash, Satya, Das, Niladri, Routray, Suman Sudha, Naik, Archana, and Mukherjee, Somnath
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ABO blood group system ,BLOOD groups ,BLOOD grouping & crossmatching ,BLOOD testing ,BLOOD donors ,TERTIARY care - Abstract
Objective ABO typing constitutes cell grouping and serum grouping. The discrepancy may arise in ABO typing due to a mismatch in cell grouping and serum grouping. It may be due to technical errors, missing or weak ABO antibodies (type I), weak ABO subgroups (type II), Rouleaux formation (type III), or other miscellaneous reasons (type IV). This study was carried out to determine the prevalence and cause of ABO blood group discrepancy in donor samples at our center. Methods A retrospective study of ABO blood group typing of blood donors was conducted at our center. The blood group typing was routinely performed using gel cards and a microcentrifuge system (Tulip Diagnostics(P) Ltd, Goa, India). If any discrepancy in ABO typing was noted, the test was repeated using the conventional tube technique. After sorting clerical/technical error, the causes of discrepancy were analyzed and resolved using anti-A
1 , anti-H, anti-AB, and other immunohematological tests like antibody screening and identification, saliva inhibition test, adsorption-elution studies. Results A total of 12,715 (98.6% males and 1.4% females) donor samples were tested. The number of ABO discrepancies detected were 15 (0.12%). The discrepancies were characterized as type I (6 cases; 40%), type II (1 case; 6.7%), type III (0 cases; 0%), and type IV (8 cases; 53.3%). Three cases, each of anti-M and anti-Leb , were detected in the study population. A single case of A3 , a subgroup of A blood group, was found during the study. Conclusion The prevalence of ABO group discrepancy was 0.12% at our center. Discrepancy arising during ABO typing of blood donor must be resolved before reporting ABO blood group to minimize the recipient's chances of transfusion reaction. The serum grouping is equally crucial as cell grouping for reporting the ABO group of an individual. [ABSTRACT FROM AUTHOR]- Published
- 2022
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15. Multidimensional corporate social responsibility disclosure and financial performance: A meta‐analytical review.
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Gupta, Jyotirani and Das, Niladri
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SOCIAL accounting ,AMBIGUITY ,FINANCIAL performance ,FINANCIAL disclosure ,SOCIAL responsibility of business - Abstract
The emergence of various Corporate Social Responsibility (CSR) disclosure laws around the globe, in the past decade, indicates the significance of CSR for a country as well as for an organization. Organization belief CSR as a strategic tool for enhancing value, still evidence on how CSR disclosure affects financial performance has been inconclusive. To resolve the ambiguity presence in the literature, this study carried out a meta‐analytic investigation based on 168 effect sizes from 73 empirical studies. This study employs a multivariate framework to explore the potential moderators that leads to conflicting results among the focal relationship of the study. The study discovers that if CSR disclosure strategy and measurement technique are adequately addressed with the help of econometric tools, then the true effect of CSR can be observed. Moreover, implications are drawn for academicians and practitioners interested in exploring the relationship between CSR disclosure and financial performance. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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16. Optimal Sensor Precision for Multirate Sensing for Bounded Estimation Error.
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Das, Niladri and Bhattacharya, Raktim
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DISCRETE-time systems ,LINEAR time invariant systems ,KALMAN filtering ,TIME-varying systems ,STOCHASTIC systems ,DETECTORS - Abstract
We address the problem of determining optimal sensor precisions for estimating the states of linear time-varying discrete-time stochastic dynamical systems, with guaranteed bounds on the estimation errors. This is performed in the Kalman filtering framework, where the sensor precisions are treated as variables. They are determined by solving a constrained convex optimization problem, which guarantees the specified upper bound on the posterior error variance. Optimal sensor precisions are determined by minimizing the $l_1$ norm, which promotes sparseness in the solution and indirectly addresses the sensor selection problem. The theory is applied to realistic flight mechanics and astrodynamics problems to highlight its engineering value. These examples demonstrate the application of the presented theory to 1) determine redundant sensing architectures for linear time invariant systems, 2) accurately estimate states with low-cost sensors, and 3) optimally schedule sensors for linear time-varying systems. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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17. Exploring entrepreneurial intention among engineering students in India: a multiple basket approach.
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Roy, Rajib and Das, Niladri
- Subjects
ENTREPRENEURSHIP ,ENGINEERING students ,SOCIAL cognitive theory ,SELF-efficacy in students - Abstract
In the light of Bandura's (Social foundations of thought and action: a social cognitive perspective, Princeton-Hall, Englewood Cliffs, 1986) social cognitive theory (SCT), we investigated the roles of four different entrepreneurial factors: entrepreneurial qualities (EQ), entrepreneurial knowledge (EK), perceived entrepreneurialism (PE) and entrepreneurial inspiration (EIN), in entrepreneurial intention (EI) formation. Alongside, this paper explored the unique role played by entrepreneurial self-efficacy as a mediator among the list of determinants and EI. The study approached with a sample of 1062 final year engineering student from 15 premier technical institutes in India. The findings show that the effects of EQ, PE, and EIN on EI are partially mediated by entrepreneurial self-efficacy whereas a full mediation between EK and EI, which is consistent with the SCT framework. The implications suggest for improving the EK delivery system, which in turn will make students feel self-efficacious toward being entrepreneurial. The article argued on various pedagogical as well as the policy-related context of business venturing at Indian technical institutes. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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18. Loss and Reappearance of A Antigen After Chemotherapy Leading to Blood Group Discrepancy in Acute Myeloid Leukemia: A Case Report.
- Author
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Prakash, Satya, Mohapatra, Sonali, Bhagavathi, M Sree, Das, Niladri, Ray, Gopal Krushna, and Mukherjee, Somnath
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ACUTE myeloid leukemia diagnosis ,ABO blood group system ,CANCER chemotherapy ,BLOOD transfusion ,ACUTE myeloid leukemia ,TREATMENT effectiveness - Abstract
A male patient aged 11 years diagnosed with acute myeloid leukemia presented with complaints of fever, lethargy, and bleeding manifestations. On ordering red blood cells and platelet transfusion, his blood group was tested. Blood group discrepancy was observed in that forward grouping showed the O Rh D positive blood group and reverse grouping revealed the A Rh D positive. The patient's previous blood group record was O Rh D positive, and he had a transfusion history of O Rh D positive red blood cells and platelets in other hospital. Initial immunohematological workup results, including adsorption and heat elution, were consistent with the O Rh D-positive blood group, but further workups on follow-up after the commencement of chemotherapy showed that his original blood group was A Rh D positive, in which the A antigen expression was previously masked by the underlying disease condition of the patient. Hence, the correlation of laboratory results with clinical details and case history is an essential step in resolving such blood group discrepancies. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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19. Individual investors' intention towards SRI in India: an implementation of the theory of reasoned action.
- Author
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Raut, Rajdeep Kumar, Kumar, Rohit, and Das, Niladri
- Abstract
Purpose: This study aims to explore and comprehend the reasons behind individual investors' intention towards socially responsible investment (SRI) in the Indian stock market along with examining the validity of the theory of reasoned action (TRA) model to predict such phenomenon in the Indian context. Design/methodology/approach: The TRA has been used as an underlying framework and has been extended by adding four variables, namely, moral norms, environmental concern, financial literacy and financial performance. The study used a self-administered questionnaire and adopted a convenience sampling method for a survey to collect the data from the individual investors from the capital cities of three states of India. Further, the collected data have been analysed using two-step structural equation modelling. Findings: Results of this study indicate a significant impact of attitude, subjective norms, moral norms, financial literacy and financial performance on investors' intention towards SRI; however, no significant relation was found between environmental concern and investors' SRI intention. The multiple squared correlation (R
2 ) shows that the final model could explain 71% of the variance in investors' intention towards SRI, which signifies a successful implementation of TRA model along with new additions to predict investors' decision-making behaviour for SRI. Moreover, investors are found to be highly concerned primarily about their financial goals and then for their personal obligation towards society as far as SRI is concerned. Practical implications: This study reports significant and prominent importance of subjective norms in SRI which could be a strategic theme for the government and the policymakers to influence investors through their opinion leaders to promote SRI. The government should also increase its efforts to facilitate financial literacy among citizens. Originality/value: Using the TRA model and four variables, namely, moral norms, environmental concern, financial literacy and financial performance addition to its original variables, this study extends the understandings of SRI which is perhaps the novelty of this paper because such examination of SRI has not been conducted, especially in the case of developing countries such as India. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
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20. The response of groundwater to multiple concerning drivers and its future: a study on Birbhum District, West Bengal, India.
- Author
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Das, Niladri, Sutradhar, Subhasish, Ghosh, Ranajit, Mondal, Prolay, and Islam, Sadikul
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WATER table ,GROUNDWATER ,ARTIFICIAL neural networks ,FLUVISOLS ,CLUSTER analysis (Statistics) ,TIME series analysis - Abstract
Groundwater and its upcoming crisis are the present-day concern of the scientist. This research mainly focuses on responses of groundwater dynamicity to some important drivers, viz. agricultural yield, groundwater irrigated area, groundwater draft, landuse/landcover, and stage of development. The result of this study has been done under three sections. In the first section, the spatiality of groundwater has been discussed where it has been noticed that the western side of the district groundwater level is near the surface due to low drafting and low agricultural yield. Moreover, hard rock geology in the western part disappoints the drilling process. On the eastern part, rich alluvial soil influences high agricultural yield hence groundwater level lowering down rapidly. In the second section, the nature of groundwater levels has been analyzed through the boxplot, and cluster diagram, where boxplots have been drawn over different geological facies, which depicts groundwater is highly fluctuating in hard clay geology. For example, high agricultural intensity and high groundwater draft is the characteristic feature of hard clay geology. The dendrogram in cluster analysis represents a homogeneous groundwater level fluctuating station in three different time series. Last section deals with the future of groundwater level where an artificial neural network (ANN) model has been applied to extract the predicted groundwater level for 2030. This type of environmental analysis, such as groundwater fluctuations in relation to different sensitive parameters and the use of a machine learning model, would aid potential researchers and communities in making wise groundwater use decisions. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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21. Privacy and Utility Aware Data Sharing for Space Situational Awareness From Ensemble and Unscented Kalman Filtering Perspective.
- Author
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Das, Niladri and Bhattacharya, Raktim
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SITUATIONAL awareness ,INFORMATION sharing ,PROBLEM solving ,PRIVACY ,BOUND states ,KALMAN filtering - Abstract
This article presents an optimization-based formulation for privacy-utility tradeoff in the ensemble and unscented Kalman filtering framework, focusing on the space situational awareness. Privacy and utility are defined in terms of lower and upper bound on the state estimation error covariance. The synthetic sensor noise is used to satisfy these bounds and is determined by solving an optimization problem. Given privacy and utility bounds, this article present optimization problem formulations to determine the maximum noise for which the utility is satisfied or the estimation errors are upper bounded, the minimum noise for which the privacy is satisfied or the estimation errors are lower bounded, the optimal noise that satisfies utility constraints and maximizes privacy, and the optimal noise that satisfies privacy constraints and minimizes the uncertainty. We demonstrate the application of these formulations to the tracking of the International Space Station and highlight the optimal privacy versus utility tradeoff for this dynamical system. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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22. A Text-Mining Approach to the Evaluation of Sustainability Reporting Practices: Evidence from a Cross-Country Study.
- Author
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Kumar, Ajay and Das, Niladri
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SUSTAINABLE development reporting ,GUIDELINES ,EVIDENCE - Abstract
Copyright of Problems of Sustainable Development / Problemy Ekorozwoju is the property of Faculty of Environmental Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
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23. Characteristic Sets of Fixed-Dimension Vector Linear Codes for Non-Multicast Networks.
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Das, Niladri and Rai, Brijesh Kumar
- Subjects
MULTICASTING (Computer networks) ,LINEAR network coding ,NONCOMMUTATIVE rings ,FINITE fields ,VECTOR fields ,ABSTRACT algebra ,COMMUTATIVE rings - Abstract
Vector linear solvability of non-multicast networks depends upon both the characteristic of the finite field and the dimension of the vector linear network code. In the literature, the dependency on the characteristic of the finite field and the dependency on the dimension have been studied separately. In this paper, we show the interdependency between the characteristic of the finite field and the dimension of the vector linear network code that achieves a vector linear network coding (VLNC) solution in non-multicast networks. For any given network $\mathcal {N}$ , we define $P(\mathcal {N},d)$ as the set of all characteristics of finite fields over which the network $\mathcal {N}$ has a $d$ -dimensional VLNC solution. To the best of our knowledge, for any network $\mathcal {N}$ shown in the literature, if $P(\mathcal {N},1)$ is non-empty, then $P(\mathcal {N},1) = P(\mathcal {N},d)$ for any positive integer $d$. We show that, for any two non-empty sets of primes $P_{1}$ and $P_{2}$ , there exists a network $\mathcal {N}$ such that $P(\mathcal {N},1) = P_{1}$ , but $P(\mathcal {N},2) = \{P_{1},P_{2} \}$. We also show that there are networks exhibiting a similar advantage (the existence of a VLNC solution over a larger set of characteristics) if the dimension is increased from 2 to 3. However, such behaviour is not universal, as there exist networks which admit a VLNC solution over a smaller set of characteristics of finite fields when the dimension is increased. Using the networks constructed in this paper, we further demonstrate that: (i) a network having an $m_{1}$ -dimensional VLNC solution over a finite field of some characteristic and an $m_{2}$ -dimensional VLNC solution over a finite field of some other characteristic may not have an $(m_{1} + m_{2})$ -dimensional VLNC solution over any finite field; (ii) there exist a class of networks for which scalar linear network coding (SLNC) over non-commutative rings has some advantage over SLNC over finite fields: the least sized non-commutative ring over which each network in the class has an SLNC solution is significantly lesser in size than the least sized finite field over which it has an SLNC solution. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
24. Investor personality and investment performance: from the perspective of psychological traits.
- Author
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Akhtar, Fatima and Das, Niladri
- Subjects
INDIVIDUAL investors ,PREJUDICES ,PERSONALITY ,SOCIAL impact ,CAPITAL market ,VIRTUAL communities - Abstract
Purpose: The purpose of this study is to analyse the mediation effect of psychological biases, namely, financial risk tolerance (FRT) and financial overconfidence on the relationship between personality traits of individual investors and their investment performance (perceived) in the context of a developing financial market such as Indian Capital Markets. Design/methodology/approach: The study uses both quantitative and cross-sectional approach to collect response from 983 individual investors through a questionnaire. The questionnaire had segments that were designed to assess their personality traits, investment performance and psychological traits. The personality traits were assessed through Big-Five personality inventory (TIPI), the psychological traits, i.e. FRT was measured through FRT scale, whereas financial overconfidence was measured through three basic concepts, namely, over-precision, over-placement and overestimation. Investment performance was assessed through perceived investment performance measures. The collected data was then analysed through AMOS and SPSS to validate the hypothesised relationship. Findings: Findings of the study depict that personality traits of individual investors are related with their FRT, financial overconfidence and perceived investment performance. In addition, FRT and financial overconfidence are negatively related to perceived investment performance. Furthermore, mediation analysis showed that the two psychological traits were found to fully mediate the relationship between personality traits and investment performance. Research limitations/implications: There are still certain limitations of the present study. First, the questionnaire pre-testing and sampling technique allowed for only for those investors who had an experience of investment in financial markets; however, the quantification of actual investment performance for each investor was impossible, and thus the actual investment performance was not determined. Second, this study focusses on the mediating role of financial overconfidence and financial risk-taking, as such it is known that levels of financial overconfidence and risk-taking depend on many other extraneous factors such as socio-economic status and financial knowledge. Practical implications: The findings of the present study is useful for financial companies, policymakers as well as issuers of financial securities, who can keep a watch on these behaviour-related traits before issuing a security in the financial market and for the financial service providers; this study would be beneficial to design a "behavioural portfolio" according to the personality and psychological traits of their clients. Social implications: Through this study, the investors can recognise their personality traits and psychological biases and take sound and good investment decisions and can also maximise their level of overconfidence. This increased level of overconfidence will propel them further to actively and frequently participate in financial markets and make financial gains. Originality/value: The essence of this paper lies in the identification of personality traits and psychological traits of individual investors, and their relationship with investment performance. Studies such as this are less prevalent in the context of a developing country such as India. Moreover, to the best of the authors' knowledge, this paper is first of its kind to study the meditating effect of psychological biases in the relationship between personality traits and investment performance. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
25. A critical comparison of factors affecting science and technology students' entrepreneurial intention: a tale of two genders.
- Author
-
Roy, Rajib and Das, Niladri
- Abstract
Copyright of International Journal for Educational & Vocational Guidance is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
26. Application of multi-criteria decision making technique for the assessment of groundwater potential zones: a study on Birbhum district, West Bengal, India.
- Author
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Das, Niladri and Mukhopadhyay, Sutapa
- Subjects
AQUIFERS ,MULTIPLE criteria decision making ,ANALYTIC hierarchy process ,GEOLOGY ,DECISION making ,GROUNDWATER ,GEOGRAPHIC information systems ,SUSTAINABLE development - Abstract
Thriving depletion of groundwater resource in the present era of green revolution and industrialization requires sustainable development and management through precise quantitative assessment-based scientific principles and modern techniques. The analytical hierarchy process (AHP) model as a popular method of multi-criteria decision-making technique is applied to determine the importance of groundwater influencing factors. Geographic information system (GIS) as a part of geospatial technology has also been used to integrate the groundwater influencing spatial dataset. In this study nine groundwater influencing thematic layers, viz. geology, drainage density, aquifer thickness, pond frequency, soil texture, lineament density, land use/land cover and rainfall, have been selected to assess groundwater potential. In this article, Birbhum district of West Bengal has been chosen as the area of case study. On the basis of AHP model and GIS technology, five groundwater potential zones have been extracted in the study area comprising very low, low, moderate, high and very high groundwater potential zones. It has been estimated that an area of 212.27 km
2 has very high potential, which is only 4.77% of the total study area. However, the areas having high, moderate, low and very low groundwater potential are about 23.33, 47.84, 25.16, and 3.65%, respectively. Finally, the validation of the groundwater potential map has been done with the data of 41 drilled boreholes which are present in a scattered manner throughout the district. The results depict that the prediction of groundwater potential zone of the area has 76.1% accuracy. [ABSTRACT FROM AUTHOR]- Published
- 2020
- Full Text
- View/download PDF
27. Corporate Sustainability Practices in Polluting Industries: Evidence from India, China and USA.
- Author
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Mishra, Prem Sagar, Kumar, Ajay, and Das, Niladri
- Subjects
CORPORATE sustainability ,SUSTAINABLE development reporting ,CAPITAL structure ,SUSTAINABILITY ,ORGANIZATIONAL performance ,SELF-disclosure ,ENVIRONMENTAL management - Abstract
Copyright of Problems of Sustainable Development / Problemy Ekorozwoju is the property of Faculty of Environmental Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
28. Optimal Transport Based Tracking of Space Objects in Cylindrical Manifolds.
- Author
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Das, Niladri, Ghosh, Riddhi Pratim, Guha, Nilabja, Bhattacharya, Raktim, and Mallick, Bani
- Subjects
PROBABILITY density function ,OBJECT tracking (Computer vision) ,RANDOM noise theory ,KALMAN filtering ,MANIFOLDS (Mathematics) ,ARTIFICIAL satellite tracking ,ROBUST optimization ,VON Neumann algebras - Abstract
In this paper, we examine the performance of satellite state estimation algorithms in the modified equinoctial coordinate system, defined on the cylindrical manifold of ℝ 5 × S , where ℝ is the space of reals and S denotes circular space. A comparison is made between an optimal transport based filter and ensemble Kalman filter algorithm in the context of satellite state estimation. The initial state joint probability density function is modeled in ℝ 5 × S using the Gauss von Mises distribution. The sensor noise for optimal transport filtering is modeled in the same manifold. The ensemble Kalman filter, by definition, requires the sensor noise to be Gaussian and is modeled in ℝ 6 for this problem. We observe that there is a clear advantage in using an optimal transport based filtering algorithm where we represent the initial condition uncertainty and sensor noise, in the cylindrical manifold. These two filtering algorithms are implemented on a simulated International Space Station orbit, with measurement at equal intervals. We compare two distinct scenarios in this simulation based study. In the first one, sensor noise characteristics are assumed to be known. For the second one, we present a new algorithm within the optimal transport framework with unknown sensor noise characteristics, a practical and relevant issue in the space-tracking problems. The optimal transport based algorithm provides more consistent and robust estimates compared to that of ensemble Kalman filter, in each of these scenarios. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
29. Vector Linear Solution iff Dimension $\geq m$.
- Author
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Das, Niladri and Rai, Brijesh Kumar
- Abstract
If a network has an $m$ -dimensional vector linear network coding (VLNC) solution, then it also has a VLNC solution for all dimensions multiple of $m$ ; but can a VLNC solution exists for dimensions not a multiple of $m$ ? If $m$ is the least positive integer such that a network has an $m$ -dimensional VLNC solution, none of the networks shown in the literature has a VLNC solution for a dimension which is not a multiple of $m$. In this letter, we show that for any positive integer $m \geq 3$ , there exists a network which has no vector linear solution if the dimension is less than $m-1$ but has a vector linear solution for all dimensions greater than or equal to $m-1$. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
30. Impact of corporate governance attributes on cost of equity.
- Author
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Srivastava, Varnita, Das, Niladri, and Pattanayak, Jamini Kanta
- Subjects
CAPITAL costs ,CORPORATE governance ,EMERGING markets ,STOCKHOLDERS ,FINANCIAL institutions - Abstract
Purpose The purpose of this study is to construct a comprehensive Indian corporate governance index in light of the recently introduced Companies Act, 2013, which is further validated by analyzing its impact on the cost of equity of a firm.Design/methodology/approach Based on the hand-collected data from firms listed on S&P BSE 500 from 2001 to 2016, this index comprises seven equally weighted sub-indices, comprising a total of 43 corporate governance attributes. This index and the sub-indices have further been regressed with the cost of equity of a firm.Findings The results suggest a negative significant relationship between the overall corporate governance and the cost of equity. The study also suggests that among all the sub-indices, board composition predicts the cost of equity to a greater extent. Other than this, the audit committee sub-index has a negative significant association with the cost of equity. The findings imply that a well-governed firm enjoys ease of access to equity finance from the market.Originality/value The corporate governance index is based on the recent regulatory reforms introduced in India. The index, with certain changes suitable to the local context, can be applied to similar emerging economies as well. The causal relationship tested using this method is the first one done in India. This study adds to the domain of corporate governance literature with special focus on the construction of an index for an emerging economy. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
31. A structural model assessing key factors affecting women's entrepreneurial success.
- Author
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Chatterjee, Namrata, Das, Niladri, and Srivastava, Nishit Kumar
- Abstract
Purpose The present study aims to investigate the influence of key factors on the success of women micro-entrepreneurs in select states of India.Design/methodology/approach An empirical study is carried out to understand the influence of the psychological, socio-cultural, skill and resource-related factors on the success of women entrepreneurs. To achieve the set goal, a comprehensive questionnaire is developed for collecting data and is analyzed using the t-test, the chi-square test and structural equation modeling.Findings The proposed model is validated using structural equation modeling, and the fitness values indicate that the model is fit to explain the entrepreneurial success of women entrepreneurs in India.Practical implications The result advocates that the participation of women entrepreneurs may be increased to not only improve national growth but also empower women in India.Originality/value In the context of the women micro-entrepreneurs, no such study covering such a vast area of India has been carried out. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
32. Predictors of investment intention in Indian stock markets.
- Author
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Akhtar, Fatima and Das, Niladri
- Subjects
STOCK exchanges ,INVESTMENTS ,INVESTORS ,FINANCIAL performance ,FINANCIAL planning - Abstract
Purpose The purpose of this paper is to understand investment intention of prospective individual investors in a developing country (i.e. India) by using the "Theory of Planned Behaviour" (TPB) (where perceived behavioural control has been replaced with financial self-efficacy, FSE) and two additional constructs, i.e. financial knowledge and personality traits (i.e. risk-taking propensity and preference for innovation) have been introduced.Design/methodology/approach The study uses quantitative and cross-sectional approach wherein questionnaire based survey was done to collect responses from prospective individual investors (920 usable responses). AMOS and SPSS have been used to establish the hypothesised relationship between the constructs.Findings The results of the study suggested that attitude was responsible for partial mediation between the relationship of financial knowledge and investment intention, whereas financial self-efficacy was exerting a dual role on the relationship between personality traits and investment intention. Subjective norms, on the other hand, exerted a weak positive effect on investment intention.Research limitations/implications This study is limited to measure the investment intention in financial markets in case of prospective individual investors; it does not incorporate the actual investment behaviour, the study also fails to include demographic factors which play a vital role in investment decision making. Furthermore, the study has only considered objective dimension of financial knowledge.Practical implications The findings will be useful for financial service providers who need to enhance the FSE and financial knowledge and design a "behavioural portfolio" according the personality traits of their clients.Social implications The up-liftment of financial confidence among individuals in order to motivate them to participate in financial markets and enjoy "short-cuts" towards financial success.Originality/value This study is one of the initial attempts in the context of the Indian Stock Market to introduce FSE as a dual (both mediating and moderating) construct between personality traits and investment intention using TPB, moreover, this study also provides the necessary impetus to analyse the relationship between financial knowledge and investment intention with attitude as the mediating variable. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
33. The impact of intellectual capital on firm performance: a study of Indian firms listed in COSPI.
- Author
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Smriti, Neha and Das, Niladri
- Subjects
ORGANIZATIONAL performance ,KNOWLEDGE management ,ENTREPRENEURSHIP ,INDUSTRIAL management ,ORGANIZATIONAL effectiveness - Abstract
Purpose The purpose of this paper is to examine the effect of intellectual capital (IC) on financial performance (FP) for Indian companies listed on the Centre for Monitoring Indian Economy Overall Share Price Index (COSPI).Design/methodology/approach Hypotheses were developed according to theories and literature review. Secondary data were collected from Indian companies listed on the COSPI between 2001 and 2016, and the value-added intellectual coefficient (VAIC) of Pulic (2000) was used to measure IC and its components. A dynamic system generalized method of moments (SGMM) estimator was employed to identify the variables that significantly contribute to firm performance.Findings Indian listed firms appear to be performing well and efficiently utilizing their IC. Overall, human capital had a major impact on firm productivity during the study period. Furthermore, the empirical analysis showed that structural capital efficiency and capital employed efficiency were equally important contributors to firm’s sales growth and market value. The growing importance of the contribution of IC to value creation was consistently reflected in the FP of these Indian companies.Practical implications This study has robust theoretical grounds and employs a validated methodology. The present study extends knowledge of IC among academicians and managers and highlights its contribution to value creation. The findings may help stakeholders and policymakers in developing countries properly reallocate intellectual resources.Originality/value This study is the first study to evaluate IC and its relationship with traditional measures of firm performance among Indian listed firms using dynamic SGMM and VAIC models. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
34. Improvement of energy forecasting model to safeguard energy security in India.
- Author
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Sadhu, Moumita, Goswami, Utpal, Das, Niladri, Sadhu, Pradip Kumar, and Goswami, Anik
- Subjects
ENERGY industry forecasting ,ENERGY security ,ECONOMIC development ,ENERGY industries ,GREENHOUSE gases ,POLLUTION ,RENEWABLE energy sources - Abstract
India is one of the countries that are developing at a very fast rate. To meet the need for this rapid growth, there is a huge need of energy. India is still predominantly an agricultural based economy. To meet this huge energy need, generation of power is needed at an exorbitant rate. The power generation of India is majorly dependent on coal. India imports coal from other countries which results in an increase in the per unit cost of energy produced. Thermal power plants also have a major disadvantage of producing greenhouse gases and polluting the environment. This has resulted in an increased stress in renewable energy generation. To ensure energy security, there is a need for finding out the right mix of energy produced by various energy sources. A model is being developed to create a long term energy plan considering the Indian economy to ensure energy security. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
35. Women on boards in India: a need or tokenism?
- Author
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Srivastava, Varnita, Das, Niladri, and Pattanayak, Jamini Kanta
- Subjects
INDIAN women (Asians) ,TOKENISM ,CORPORATE directors ,CAPITAL costs ,RETURN on assets ,GENDER differences (Psychology) - Abstract
Purpose The purpose of this paper is to examine the significance of gender diversity on corporate boards in India in the light of recent regulatory reform introduced in the Companies’ Act, 2013 which mandated the presence of at least one woman on the corporate boards of all the listed firms.Design/methodology/approach Based on a panel of 300 firm-year observations for 15 years from 2001 to 2015, regression analysis has been conducted to analyze the relation between gender-related variables of corporate boards with firm-specific financial characteristic, cost of equity (COE) and return on assets (ROA) of firms listed in CNX Nifty, a major financial market index of India.Findings The analysis indicates that boards with gender diversity explain a slightly more than 5.5 percent change in a firm’s COE and have a much higher impact of 45 percent on a firm’s ROA. The presence of female directors on the boards and their independence have a negative association with the COE, whereas the level of involvement of female directors on different committees has a positive association with the ROA.Practical implications The findings may help theorists in defining the right mix of female on the corporate boards in an emerging economy. Also, by taking input from the findings, regulators and industry can formulate policies to foster gender diversity on corporate boards in India.Originality/value This study considers the recent regulatory norm introduced in India. This issue has still not been discussed and analyzed by researchers in India. It attempts to explain the impact a gender diverse board can make on a firm’s performance. It also makes valuable recommendations to improve the norms intended to more effectively foster gender diversity on corporate boards in India. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
36. Sustainability Reporting Practices in Emerging Economies: A Cross-Country Study of BRICS Nations.
- Author
-
Kumar, Ajay and Das, Niladri
- Subjects
SUSTAINABLE development reporting ,SOCIAL responsibility of business ,SUSTAINABLE development - Abstract
Copyright of Problems of Sustainable Development / Problemy Ekorozwoju is the property of Faculty of Environmental Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
37. Extending the Theory of Planned Behaviour: Impact of Past Behavioural Biases on the Investment Decision of Indian Investors.
- Author
-
Kumar, Rajdeep Raut, Das, Niladri, and Kumar, Rohit
- Subjects
PLANNED behavior theory ,INVESTMENTS ,ATTITUDES of capitalists & financiers - Abstract
Research aims: This paper aims to investigate the applicability of the Theory of Planned Behaviour (TPB) in examining individuals' behavioural intention to invest in the capital market. This study extends on the TPB model by considering the role of past behavioural biases (PBB) as a factor in influencing the individuals' behavioural investment intentions. Design/ Methodology/ Approach: This paper employs a hypothesis deductive approach. The research model is tested through structural equation modelling (SEM). Data were collected from 396 individuals in Eastern India through a survey and then analysed. Research findings: The results of this study demonstrate the applicability of the TPB in predicting the individuals' behavioural intention to invest in the capital market. This study indicates that attitude toward behaviour, subjective norms and perceived behavioural control are significantly associated with behavioural intentions. The findings signify that the inclusion of past PBB can improve the predictive power of the model. Theoretical contributions/ Originality: This study expands on the well-established TPB model by incorporating PBB in examining behavioural intentions. It also extends the applicability of the TPB in the area of investment decision making. Practitioner/ Policy implications: The findings of this study reveal that behavioural biases are inseparable from normal human beings' decision making. The reason is because behavioural biases can distort the individuals' fundamental valuation of stocks. Therefore, it is imperative that fund managers incorporate this dimension as part of their risk modelling to enhance investment analysis and strategies. The outcome of this study can be used as a guideline for understanding the factors and programmes that need to be instilled to increase online stock trading among current and future investors. Research limitation: This study is limited to non-financial sectors due to measurement limitations. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
38. The impact of social influence on the relationship between personality traits and perceived investment performance of individual investors.
- Author
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Akhtar, Fatima, Thyagaraj, K. S., and Das, Niladri
- Subjects
PERSONALITY ,SOCIAL influence ,INVESTMENTS ,INDIVIDUAL investors ,FIVE-factor model of personality - Abstract
Purpose The purpose of this paper is to clarify the relationship between an individual investor’s personality trait and his perceived investment performance. It proposes a novel conceptual framework that integrates social influence (as a moderating construct) and outlines the role of personality in determining the perceived investment performance during the investment decision-making process.Design/methodology/approach A questionnaire-based survey was conducted to collect responses from 396 individual investors through stratified and quota sampling approach. The collected data were then analysed using both hierarchical regression analysis and structural equation modelling to evaluate the strength of the relationship between the constructs, namely, personality trait, perceived investment performance and social influence.Findings This study suggests that social influence positively moderates the relationship between extraversion-perceived investment performance, whereas it negatively moderates the relationship between agreeability-perceived investment performance.Research limitations/implications This study has certain limitations. First, this work follows a modelling approach which is more centred towards the prediction of relationships. Second, because of choosing a research approach (since the study has been conducted in one country, i.e. India), the results of the study may lack generalisability. Therefore, further studies could be encouraged to test the proposed hypotheses.Practical implications Insights from this study suggest that investors should look in for their personality traits while making an investment decision. In fact, psychologically modified portfolios should be developed as per the personality traits of the investors.Originality/value The study, perhaps, is the only study to apply social influence in a framework using Big Five personality traits as a possible factor to understand the individual differences in terms of perceived investment performance. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
39. Corporate governance: mapping the change.
- Author
-
Srivastava, Varnita, Das, Niladri, and Pattanayak, Jamini Kanta
- Subjects
CORPORATE governance ,ORGANIZATIONAL change ,ORGANIZATIONAL performance - Abstract
Purpose This paper aims to explore the relationship of corporate governance attributes with cost of capital and firm performance. This paper also tries to find some widely discussed corporate governance attributes that hold importance in Indian context.Design/methodology/approach This paper is based on literature survey of 241 research papers, both conceptual and empirical, which covers literature published over a period of three decades, ranging from 1986 to 2016. The literature includes those papers that studied the relation of corporate governance with cost of capital and firm performance, also it includes those research papers which discuss the evolution and development of corporate governance as a concept.Findings This study finds that the idea of corporate governance has shifted from the protection of shareholders’ rights to a firm’s need for survival. There is a dearth of literature studying the relation between corporate governance and cost of capital in India. It is observed that cost of capital is a better measure than Tobin’s q in Indian context.Research limitations/implications This paper mainly focuses on themes like cost of capital and firm performance therefore, some other firm-related measures which are also influenced by corporate governance may have been ignored.Originality/value This study enhances the literature on corporate governance especially in Indian context. Empirically testing the framework developed in this study will help in identifying the significance of various corporate governance attributes in Indian context. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
40. Entrepreneurial intention among science & technology students in India: extending the theory of planned behavior.
- Author
-
Roy, Rajib, Akhtar, Fatima, and Das, Niladri
- Abstract
The present research endeavours to comprehend the young S&T graduates' intention toward pursuing an entrepreneurial career in a developing nation i.e., India. Using a modified version of Ajzen's theory of planned behaviour (TPB) as our conceptual model, we attempted to integrate three additional constructs (perceived career option, entrepreneurial knowledge and entrepreneurial personality traits) to explain the relationship between a list of antecedents and entrepreneurial intention (EI). Structural equation modelling (SEM) technique has been implemented while analysing the data, collected through a self-administered questionnaire survey of five premier technology institutes in India. Findings, using a sample size of 476 young Science & Technology graduates at Indian Institute of Technology (IITs), suggest that a positive attitude toward entrepreneurship when reinforced by required entrepreneurial knowledge and the existence of viable entrepreneurial career option significantly influence EI. We found a positive but relatively weak influence of subjective norms on intention formation. Further, our findings recognise that the relationship between entrepreneurial personality traits and EI is fully mediated by perceived self-efficacy. Moderating effect suggests that student's perceived self-efficacy boosts the entrepreneurial personality traits to EI relationship. The results also reinforced the appropriateness of incorporating auxiliary constructs in base TPB, as our conceptual model provides additional predictive power and a better understanding of how entrepreneurial intent develops. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
41. Control of a 4 DoF Barrett WAM robot ? Modeling, control synthesis and experimental validation.
- Author
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Mitra, Aritra, Das, Niladri, Samant, Raj Nayan, and Behera, Laxmidhar
- Published
- 2016
- Full Text
- View/download PDF
42. Learning object manipulation from demonstration through vision for the 7-DOF barrett WAM.
- Author
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Das, Niladri, Prakash, Ravi, and Behera, Laxmidhar
- Published
- 2016
- Full Text
- View/download PDF
43. Naloxone Counseling for Harm Reduction and Patient Engagement.
- Author
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Han, Jonathan K., Hill, Lucas G., Koenig, Marianne E., and Das, Niladri
- Abstract
Background and Objectives: The United States is experiencing an epidemic of opioid-related deaths. Naloxone, the drug of choice for reversing acute opioid overdose, is not routinely prescribed for outpatient use. The aims of this project were to improve naloxone awareness, increase naloxone prescribing, and prevent opioid overdoses.Methods: A naloxone counseling intervention was implemented in three family health centers by an interprofessional team of providers including family medicine physicians, clinical pharmacists, and social workers. An outreach letter was designed with provider input, an electronic order set was developed to facilitate prescribing, and intranasal naloxone kits were assembled for free dispensing. Providers and staff received education about opioid overdose and naloxone prescribing. Faculty and resident physicians were surveyed before and after the intervention to assess their attitudes. Patients who received naloxone kits were surveyed to assess their attitudes and use of opioids and naloxone.Results: Over 16 months, 71 outreach letters were distributed and 97 naloxone kits were dispensed. The majority of kits were prescribed for illicit opioid use. Faculty and resident physician surveys indicated improved knowledge about naloxone prescribing, and increased professional satisfaction caring for patients requesting opioids. Surveyed patients endorsed high levels of comfort discussing opioid use with their primary care physician. Five successful opioid overdose reversals were reported.Conclusions: An interprofessional naloxone counseling intervention engaged patients in opioid use discussions, increased provider satisfaction, and reversed overdoses. Improving naloxone access is an essential component of comprehensive overdose prevention programs that encourage responsible opioid prescribing and use. [ABSTRACT FROM AUTHOR]- Published
- 2017
44. On characteristics dependent linear coding capacity of sum‐networks.
- Author
-
Rai, Brijesh Kumar and Das, Niladri
- Abstract
It is known that the linear coding capacity of non‐multicast networks may depend on the characteristic of the finite field. Such a dependence has been demonstrated in several examples presented in the literature. However, in all such examples, the number of distinct values that the linear coding capacity can take over different characteristics of the finite field is two. For example, the Fano network has linear coding capacity equal to one over even characteristic, and has linear coding capacity equal to 4/5 over odd characteristics. It is a natural question that whether a network can have arbitrarily many different characteristics dependent linear coding capacities. In this study, the authors answer the question for sum‐networks, which are networks where the terminals demand the sum of the messages generated by the sources. Specifically, they show that given a set of characteristics (prime numbers) {p1,p2,...,pn}, indeed there exists a sum‐network such that for each different value of the characteristic of the finite field, the linear coding capacity of the sum‐network is different. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
45. A Survey on High-Frequency Inverter and Their Power Control Techniques for Induction Heating Applications.
- Author
-
Kumara, Anand, Sadhu, Moumita, Das, Niladri, Sadhu, Pradip Kumar, Roy, Debabrata, and Ganguly, Ankur
- Subjects
INDUCTION heating ,ELECTRIC heating ,HEATING ,HEAT engineering ,ACOUSTIC heating - Abstract
Intensive use of induction heating (IH) technology can be seen in many areas such as industrial, domestic and medical applications. The evolution of high-frequency switches has facilitated the design of high-frequency inverters, the key element of induction heating technology. Controling output power in a high-frequency inverter for induction heating application is complex. However, the importance of IH technology is not widespread. Induction heating technology requires accurate output power and current control with appropriate dynamics. Several power control techniques have been discussed inrelation to designing high-frequency inverters for IH applications. This paper makes a comprehensive review of the various power control techniques regarding high-frequency inverters for modern IH applications (domestic & industrial). [ABSTRACT FROM AUTHOR]
- Published
- 2017
46. On achievability of an (r, l) fractional linear network code.
- Author
-
Das, Niladri and Rai, Brijesh Kumar
- Abstract
It is known that there exists a network, called as the M‐network, which is not scalar linearly solvable but has a vector linear solution for message dimension two. Recently, a generalisation of this result has been presented where it has been shown that for any integer m≥2, there exists a network which has an (m, m) vector linear solution, but does not have a (w, w) vector linear solution for w < m. This study presents a further generalisation. Specifically, the authors show that for any positive integers k, n, and m≥2, there exists a network which has a (mk, mn) fractional linear solution, but does not have a (wk, wn) fractional linear solution for w < m. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
47. On the number of sources and terminals of sum-networks with capacity p/q.
- Author
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Das, Niladri and Rai, Brijesh Kumar
- Published
- 2015
- Full Text
- View/download PDF
48. A probabilistic framework of learning movement primitives from unstructured demonstrations.
- Author
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Das, Niladri, Dutta, Samrat, Reddy, Sunil Kumar, and Behera, Laxmidhar
- Published
- 2015
- Full Text
- View/download PDF
49. Abstract 47: Short stature with primary amenorrhea and deafness: Beyond turner's syndrome.
- Author
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Das, Niladri, Datta, Joydip, Sengupta, Nilanjan, Goswami, Soumik, and Baidya, Arjun
- Subjects
TURNER'S syndrome ,SHORT stature ,STATURE ,SENSORINEURAL hearing loss ,DEAFNESS ,JOINTS (Anatomy) - Abstract
Perrault syndrome is a rare disorder, with autosomal recessive mode of inheritance, comprising of pure gonadal dysgenesis and sensorineural hearing loss in female and only sensorineural hearing loss in male. Less than 100 cases are reported in literature. Here, we report a case of Perrault syndrome in a 15-year female, born of consanguineous union, presented with deaf mutism, primary amenorrhoea and short stature. She has 2 younger male siblings who are also deaf and mute. On evaluation she had short stature with hypergonadotrophic hypogonadism with bilateral radioulnar joint dislocation with proxmal radial head dislocation, 46XX karyotype, with no cardiac abnormality. Other siblings are normal in height for age. Audiologic examination of 3 siblings revealed bilateral sensorineural hearing loss. Whole exome sequencing was done, which confirms our clinical diagnosis of Perrault syndrome. The patient was started on hormone replacement therapy and on regular follow up. We, present this case, due to infrequent incidence and also due to close differential of Turner syndrome. [INLINE:1] [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
50. On the Message Dimensions of Vector Linearly Solvable Networks.
- Author
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Das, Niladri and Rai, Brijesh Kumar
- Abstract
It is known that there exists a network which does not have a scalar linear solution over any finite field but has a vector linear solution when message dimension is 2. It is not known whether this result can be generalized for an arbitrary message dimension. In this letter, we show that there exists a network that admits an $m$ dimensional vector linear solution, where $m$ is a positive integer greater than or equal to 2, but does not have a vector linear solution over any finite field when the message dimension is less than $m$ . [ABSTRACT FROM PUBLISHER]
- Published
- 2016
- Full Text
- View/download PDF
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