Journal articles: 'EKD methodology'

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Ferreira, Ailton Silva, and Gabriel Riso Oliveira. "Business process modeling: A webibliominig perspective of architecture frameworks." Independent Journal of Management & Production 10, no. 3 (June 1, 2019): 1159. http://dx.doi.org/10.14807/ijmp.v10i3.886.

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In the perspective of organizational context, the present paper deals with the different types of architecture of BPM. As objectives, it is proposed to formulate a conceptual comparative view of the main architectures present in the scientific literature. As for the methodology, bibliographical and webibliomining research are employed in a qualitative and quantitative approach to the subject. As a result, the comparative view of the UML, BPMN, CIMOSA, IDEF, ARIS, IEM, GRAI, GERAM and EKD architectures is developed, in terms of temporal aspects, socio-technical characteristics, visualization and analysis, among other factors which offers substantial argument to decide what framework is better in each scenario.

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Cai, Rongjiang, Tao Lv, and Xu Deng. "Evaluation of Environmental Information Disclosure of Listed Companies in China’s Heavy Pollution Industries: A Text Mining-Based Methodology." Sustainability 13, no. 10 (May 12, 2021): 5415. http://dx.doi.org/10.3390/su13105415.

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Environmental information disclosure (EID) of listed companies is a significant and essential reference for assessing their environmental protection commitment. However, the content and form of EID are complex, and previous assessment studies involved manual scoring mainly by the experts in this field. It is subjective and has low timeliness. Therefore, this paper proposes an automatic evaluation framework of EID quality based on text mining (TM), including the EID index system’s construction, automatic scoring of environmental information disclosure quality, and EID index calculation. Furthermore, based on the EID of 801 listed companies in China’s heavy pollution industry from 2013 to 2017, case studies are conducted. The case study results show that the overall quality of the EID of listed companies in China’s heavily polluting industries is low, and there is a gap differentiation between the 16 industries. Compared with the subjective manual scoring method, TM evaluation can evaluate the quality of EID more effectively and accurately. It has great potential and can become an essential tool for the sustainable development of society and listed companies.

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Zeng, Yong. "Environment-Based Design (EBD): a Methodology for Transdisciplinary Design+." Journal of Integrated Design and Process Science 19, no. 1 (June 6, 2015): 5–24. http://dx.doi.org/10.3233/jid-2015-0004.

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PRAJINA N V, PRAJINA N. V., and T. D. JOHN T D JOHN. "Multi Response Optimization of Cutting Forces in End Milling Using Response Surface Methodology and Desirability Function." International Journal of Scientific Research 2, no. 5 (June 1, 2012): 126–30. http://dx.doi.org/10.15373/22778179/may2013/45.

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Ben Mosbah, Abdallah, Manuel Flores Salinas, Ruxandra Botez, and Thien-my Dao. "New Methodology for Wind Tunnel Calibration Using Neural Networks - EGD Approach." SAE International Journal of Aerospace 6, no. 2 (September 17, 2013): 761–66. http://dx.doi.org/10.4271/2013-01-2285.

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Antoniou, Constantinos, Moshe Ben-Akiva, and Haris N. Koutsopoulos. "Online Calibration of Traffic Prediction Models." Transportation Research Record: Journal of the Transportation Research Board 1934, no. 1 (January 2005): 235–45. http://dx.doi.org/10.1177/0361198105193400125.

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A methodology for the online calibration of the speed–density relationship is formulated as a flexible state–space model. Applicable solution approaches are discussed and three of them–-the extended Kalman filter (EKF), the iterated EKF, and the unscented Kalman filter (UKF)–-are selected and presented in detail. An application of the methodology with freeway sensor data from two networks in Europe and the United States is presented. The improvement in the estimation and prediction of speeds due to online calibration (compared with the speeds obtained from the relationship calibrated offline) is demonstrated. EKF provided the most straightforward solution to this problem and, indeed, achieved considerable improvements in estimation and prediction accuracy. The benefits obtained from the use of the more computationally expensive iterated EKF algorithm are shown. An innovative solution technique (UKF) is also presented.

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Santos, Isa CT, G. Scott Gazelle, Luís A. Rocha, and João Manuel RS Tavares. "Medical device specificities: opportunities for a dedicated product development methodology." Expert Review of Medical Devices 9, no. 3 (May 2012): 299–311. http://dx.doi.org/10.1586/erd.12.3.

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Hasanov, Fakhri J., Lester C. Hunt, and Jeyhun I. Mikayilov. "Estimating different order polynomial logarithmic environmental Kuznets curves." Environmental Science and Pollution Research 28, no. 31 (April 1, 2021): 41965–87. http://dx.doi.org/10.1007/s11356-021-13463-y.

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AbstractThis paper contributes to the environmental literature by (i) demonstrating that the estimated coefficients and the statistical significance of the non-leading terms in quadratic, cubic, and quartic logarithmic environmental Kuznets curve (EKC) specifications are arbitrary and should therefore not be used to choose the preferred specification and (ii) detailing a proposed general-to-specific type methodology for choosing the appropriate specifications when attempting to estimate higher-order polynomials such as cubic and quartic logarithmic EKC relationships. Testing for the existence and shape of the well-known EKC phenomenon is a hot topic in the environmental economics literature. The conventional approach widely employs quadratic and cubic specifications and more recently also the quartic specification, where the variables are in logarithmic form. However, it is important that researchers understand whether the estimated EKC coefficients, turning points, and elasticities are statistically acceptable, economically interpretable, and comparable. In addition, it is vital that researchers have a clear structured non-arbitrary methodology for determining the preferred specification and hence shape of the estimated EKC. We therefore show mathematically and empirically the arbitrary nature of estimated non-leading coefficients in quadratic, cubic, and quartic logarithmic EKC specifications, being dependent upon the units of measurement chosen for the independent variables (e.g. dependent upon a rescaling of the variables such as moving from $m to $bn). Consequently, the practice followed in many previously papers, whereby the estimates of the non-leading terms are used in the decision to choose the preferred specification of an estimated EKC relationship, is incorrect and should not be followed since it potentially could lead to misleading conclusions. Instead, it should be based upon the sign and statistical significance of the estimated coefficients of the leading terms, the location of turning point(s), and the sign and statistical significance of the estimated elasticities. Furthermore, we suggest that researchers should follow a proposed general-to-specific type methodology for choosing the appropriate order of polynomials when attempting to estimate higher-order polynomial logarithmic EKCs.

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Ghoni, Muhammad Abdul. "The Inconsistency Effect of Anomalies on the Muslim Eid (Id Fitri) towards Abnormal Return : Case Study in the Indonesia Stock Exchange." AL-FALAH : Journal of Islamic Economics 4, no. 2 (December 16, 2019): 181. http://dx.doi.org/10.29240/alfalah.v4i2.911.

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Purposes: The purpose of this paper is to analyze the causes of inconsistency in the effect of the "Anomalies" of the Islamic Eid (Eid al-Fitr) on Abnormal returns on the Indonesia Stock Exchange. Design/Methodology/Approach: This article applied the quatitative analysis. In practise, it consistently uses the descriptive qantitative in measuring the effect cross selected-variables.Findings: Based on the results of the analysis showed that the inconsistency of the effect of "Anomalies" on the Islamic Eid (Eid al-Fitr) on Abnormal returns on the Indonesia Stock Exchange was caused by various things, including behavior of investors caused by uncertainty during the Eid al-Fitr. Originality/Value: a set of novelty identificated from the article is that study deeply measures the relationship between anomalies of The Muslim Eid and Abnomarmal Return in The Indonesia Stock Exchange.

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Hamed, Sara, Noha El-Bassiouny, and Anabel Ternès. "Evidence-based design and transformative service research for the healthcare in hospitals." International Journal of Pharmaceutical and Healthcare Marketing 10, no. 2 (June 6, 2016): 214–29. http://dx.doi.org/10.1108/ijphm-10-2013-0058.

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Purpose The purpose of this study is to combine the two fields of transformative service research (TSR) and evidence-based design (EBD) to improve the healthcare service provided in hospitals. TSR and EBD are two separate research fields that aim to improve the well-being of consumers within the service sector. Research propositions for making changes in the hospital physical environment to improve the patient well-being are developed to link the two fields. Design/methodology/approach This work takes a theoretical approach to develop research propositions based on the literature. The research propositions guide the development of the framework developed for future studies under TSR and EBD. Findings The research propositions should be tested empirically in future studies to develop a methodology for transforming a hospital physical environment. The implementation of these propositions would allow hospitals to reach a new and more sustainable competitive advantage. Originality/value The relationship between the domains of TSR and EBD has not been explored before in the literature. This study presents an unprecedented work that is needed to improve patient well-being. It contributes to TSR and EBD by providing a research agenda for healthcare practitioners and researchers to pave the way for achieving improved healthcare services focusing on patient well-being and sustainability.

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Rosini, Alessandro Marco, Márcia Figueiredo, Angelo Palmisano, and Orlando Roquer. "Distance Education - A Critical Analysis of recent Governance Public Policies Regulations." Journal on Innovation and Sustainability. RISUS ISSN 2179-3565 6, no. 3 (December 15, 2015): 115. http://dx.doi.org/10.24212/2179-3565.2015v6i3p115-126.

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This article aims to conduct a critical analysis of the new regulations 2014 proposals for distance education (EAD), checking and analyzing governance in public policies at EAD scenario. The methodology of this study is based on an exploratory research, critical analysis and content performed by the researchers based on the text proposed by the National Education Council (CNE). The main contributions of this work permeate in ideas, proposals and discussions in favor of assumptions that may contribute to the ways of a higher quality and public governance in EAD.

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Reinen, Jelle, Daniel van Hemert, Nico P. E. Vermeulen, and Jan N. M. Commandeur. "Application of a Continuous-Flow Bioassay to Investigate the Organic Solvent Tolerability of Cytochrome P450 BM3 Mutants." Journal of Biomolecular Screening 20, no. 10 (September 22, 2015): 1246–55. http://dx.doi.org/10.1177/1087057115607183.

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A novel methodology is presented to investigate the organic solvent tolerability of cytochrome P450 monooxygenase BM3 (CYP BM3) mutants. A fluorescence-based continuous-flow enzyme activity detection (EAD) setup was used to screen the activity of CYP BM3 mutants in the presence of organic solvents. The methodology is based on the CYP BM3–mediated O-dealkylation of benzyloxyresorufin to form the highly fluorescent product resorufin. The assay setup not only allows detection of the formed resorufin, but it also simultaneously monitors cofactor depletion online. The EAD setup was used to test the activity of a small library of novel CYP BM3 mutants in flow-injection analysis mode in the presence of the organic modifiers methanol, acetonitrile, and isopropanol. Mutants with enhanced tolerability toward all three solvents were identified, and the EAD setup was adapted to facilitate CYP BM3 activity screening against a gradient of an organic modifier to study the behavior of the small library of CYP BM3 mutants in more detail. The simple methodology used in this study was shown to be a very powerful tool to screen for novel CYP BM3 mutants with increased tolerability toward organic solvents.

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Park, Jae-Eun, Yang-Woo Seo, and Ko-Kyun Kim. "A Development of Weapon System Test Set's Display Using an Ecological Interface Design Methodology." Journal of the Korea Academia-Industrial cooperation Society 16, no. 6 (June 30, 2015): 4147–57. http://dx.doi.org/10.5762/kais.2015.16.6.4147.

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Pointon, Harry, Benjamin McLoughlin, Christian Matthews, and Frederic Bezombes. "Towards a Model Based Sensor Measurement Variance Input for Extended Kalman Filter State Estimation." Drones 3, no. 1 (February 14, 2019): 19. http://dx.doi.org/10.3390/drones3010019.

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In this paper, we present an alternate method for the generation and implementation of the sensor measurement variance used in an Extended Kalman Filter (EKF). Furthermore, it demonstrates the limitations of a conventional EKF implementation and postulates an alternate form for representing the sensor measurement variance by extending and improving the characterisation methodology presented in the previous work. As presented in earlier work, the use of surveying grade optical measurement instruments allows for a more effective characterisation of Ultra-Wide Band (UWB) localisation sensors; however, in cluttered environments, the sensor measurement variance will change, making this method not robust. To compensate for the noisier readings, an EKF using a model based sensor measurement variance was developed. This approach allows for a more accurate representation of the sensor measurement variance and leads to a more robust state estimation system. Simulations were run using synthetic data in order to test the effectiveness of the EKF against the originally developed EKF; next, the new EKF was compared to the original EKF using real world data. The new EKF was shown to function much more stably and consistently in less ideal environments for UWB deployment than the previous version.

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Choir, Anisa. "PATRIOTISME TOKOH DEWI AYU DALAM NOVEL CANTIK ITU LUKA KARYA EKA KURNIAWAN." SEMIOTIKA: Jurnal Ilmu Sastra dan Linguistik 22, no. 1 (January 31, 2021): 11. http://dx.doi.org/10.19184/semiotika.v22i1.20338.

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This article scrutinizes the patriotism side of the character Dewi Ayu in the novel entitled Cantik Itu Luka by Eka Kurniawan. As a prostitute at Halimunda, Dewi Ayu has an ambiguous nature. She has a tremendous patriotic character, although her profession broke the social norms. This study aims to expose the patriotism of Dewi Ayu in Eka Kurniawan's Cantik Itu Luka. The methodology used in this study is a qualitative methodology approach and a content analysis method by describing the behaviour of Dewi Ayu based on events in the narrative texts. Based on data processing, the study results show Dewi Ayu's patriotism, such as her strict, self-sacrificing, responsible, and a sense of sympathy for indigenous women.

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RAGDE, HAAKON, JOHN C. BLASKO, DOUGLAS SCHUMACHER, PETER D. GRIMM, DAVID L. CUNNINGHAM, JOHN SYLVESTER, and TIMOTHY P. MATE. "Use of Transrectal Ultrasound in Transperineal 125Iodine Seeding for Prostate Cancer: Methodology." Journal of Endourology 3, no. 2 (January 1989): 209–18. http://dx.doi.org/10.1089/end.1989.3.209.

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Bakavicius, Arnas, Rafael Sanchez-Salas, Fabio Muttin, Arjun Sivaraman, Paolo Dell'Oglio, Eric Barret, Francois Rozet, et al. "Comprehensive Evaluation of Focal Therapy Complications in Prostate Cancer: A Standardized Methodology." Journal of Endourology 33, no. 7 (July 2019): 509–15. http://dx.doi.org/10.1089/end.2018.0809.

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Li, Shiping, Qiaoying Zhang, and Peiwu Li. "Protective effects of epifriedelinol in a rat model of traumatic brain injury assessed with histological and hematological markers." Translational Neuroscience 9, no. 1 (October 19, 2018): 38–42. http://dx.doi.org/10.1515/tnsci-2018-0008.

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Abstract Background This study evaluated the protective effects of epifriedelinol (EFD) in a rat model of traumatic brain injury (TBI). Methodology TBI was induced by dropping a weight from a specific height. The animals were separated into control, TBI, and EFD 100 and 200 mg/kg groups. The latter received 100 and 200 mg/kg EFD, respectively, for 2 days beginning 30 min after inducing TBI. The neurological examination score, permeability of the blood–brain barrier (BBB), water content of the brain, cytokine levels, and oxidative stress parameters were measured in the rats. The effects of EFD on glial fibrillary acidic protein (GFAP)-positive cells were evaluated using immunohistochemistry. ResultThe EFD treatment significantly decreased the neurological score, permeability of the BBB, and water content of brain compared with the TBI group. The levels of interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and oxidative stress were significantly decreased in the EFD-treated groups. The number of GFAP-positive cells was also significantly reduced in the EFD-treated groups. ConclusionEFD attenuates the secondary injury in TBI rats by reducing the serum cytokine levels and oxidative stress.

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Hedström, Karin, Fredrik Karlsson, and Fredrik Söderström. "Challenges of introducing a professional eID card within health care." Transforming Government: People, Process and Policy 10, no. 1 (March 21, 2016): 26–46. http://dx.doi.org/10.1108/tg-10-2013-0044.

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Purpose The purpose of this paper is to examine the challenges that arise when introducing an electronic identification (eID) card for professional use in a health-care setting. Design/methodology/approach This is a case study of an eID implementation project in healthcare. Data were collected through interviews with key actors in a project team and with eID end users. The authors viewed the eID card as a boundary object intersecting social worlds. For this analysis, the authors combined this with an electronic government initiative challenge framework. Findings The findings of this paper illustrate the interpretative flexibility of eID cards and how eID cards as boundary objects intersect social worlds. The main challenges of implementing and using eID cards in healthcare are usability, user behaviour and privacy. However, the way in which these challenges are interpreted varies between different social worlds. Practical implications One of the implications for future practice is to increase our understanding of the eID card as a socio-technical artefact, where the social and technical is intertwined, at the same time as the eID card affects the social as well as the technical. By using a socio-technical perspective, it is possible to minimise the potential problems related to the implementation and use of eID. Originality/value Previous research has highlighted the need for more empirical research on identity management. The authors contextualise and analyse the implementation and use of eID cards within healthcare. By viewing the eID card as a boundary object, the authors have unveiled its interpretative flexibility and how it is translated across different social worlds.

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Mahmood, Fouad Jalal. "The role of evidence-based design in informing health-care architects." Journal of Facilities Management 19, no. 2 (February 1, 2021): 249–62. http://dx.doi.org/10.1108/jfm-09-2020-0062.

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Purpose This study aims to trace the relationship between the evidence-based design (EBD) process and decision-making during the architectural design process, the barriers to informing health-care architects and possible methods to overcome these barriers. Design/methodology/approach This study aims to explore the barriers to the EBD process during the design process by reviewing the relevant literature and future steps to overcome these barriers and support design decisions. Findings The study shows that EBD is a relevant, useful tool for providing evidence that positively affects design decisions. This study divides EBD barriers into simple barriers and complex barriers, depending on the nature of the barrier. Additionally, methods to overcome these barriers are discussed to ensure the best use of EBD findings with a significant impact on health-care design decisions, as they are core elements in informing architects, especially when combined with the traditional design process. This study investigates how likely it is for the EBD to contribute optimally to design decisions depending on architects’ skills and cooperation with researchers. Originality/value This study can apprize health-care architects of the need to consider the role of EBD in improving the quality of design decisions, and the importance of combining EBD with the traditional design process to implement optimal design decisions.

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Barrau, Axel, and Silvère Bonnabel. "Invariant Kalman Filtering." Annual Review of Control, Robotics, and Autonomous Systems 1, no. 1 (May 28, 2018): 237–57. http://dx.doi.org/10.1146/annurev-control-060117-105010.

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The Kalman filter—or, more precisely, the extended Kalman filter (EKF)—is a fundamental engineering tool that is pervasively used in control and robotics and for various estimation tasks in autonomous systems. The recently developed field of invariant extended Kalman filtering uses the geometric structure of the state space and the dynamics to improve the EKF, notably in terms of mathematical guarantees. The methodology essentially applies in the fields of localization, navigation, and simultaneous localization and mapping (SLAM). Although it was created only recently, its remarkable robustness properties have already motivated a real industrial implementation in the aerospace field. This review aims to provide an accessible introduction to the methodology of invariant Kalman filtering and to allow readers to gain insight into the relevance of the method as well as its important differences with the conventional EKF. This should be of interest to readers intrigued by the practical application of mathematical theories and those interested in finding robust, simple-to-implement filters for localization, navigation, and SLAM, notably for autonomous vehicle guidance.

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Shome, D., S. Mitra, and S. Sarkar. "Response Surface Methodology-based approach to Electrochemical Deburring (ECD) of SS304 stainless steel workpiece." International Journal of Product Development 6, no. 1 (2008): 2. http://dx.doi.org/10.1504/ijpd.2008.019117.

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Fourie, Elsa. "The impact of school principals on implementing effective teaching and learning practices." International Journal of Educational Management 32, no. 6 (August 13, 2018): 1056–69. http://dx.doi.org/10.1108/ijem-08-2017-0197.

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PurposeThe purpose of this paper is to identify limitations in managing the implementation of effective teaching and learning in township ECD centres.Design/methodology/approachThis research was grounded in a community-based participatory research approach. A qualitative research design was utilised because phenomena could be studied in terms of the meanings of people. Elements of grounded theory, situational analysis and community-based participatory research were blended. The qualitative research design involved semi-structured face-to-face interviews with teachers in township ECD centres.FindingsThe findings from this research made it evident that principals of ECD centres were often absent; had not been trained to manage an ECD centre; had limited skills to manage finances; did not communicate with parents or teachers; and did not motivate teachers to achieve goals or to improve their qualifications.Practical implicationsChallenges that could impede the effective implementation of an intervention programme should be identified and addressed. Principals of ECD centres should be empowered to manage their centres effectively. A training programme aimed at empowering principals of ECD centres has been developed and will be implemented after consultation with the gatekeeper and principals of the ECD centres.Originality/valueThe findings of this research could be used by principals and researchers to reflect on management practices in ECD centres. A challenge for principals is to acknowledge the principles of effective management and to close the gap between current practices and effective management practices. Interventions from academics are essential to enhance the quality of teaching and learning in ECD centres.

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Xiong, Kai, and Liangdong Liu. "Design of parallel adaptive extended Kalman filter for online estimation of noise covariance." Aircraft Engineering and Aerospace Technology 91, no. 1 (January 7, 2018): 112–23. http://dx.doi.org/10.1108/aeat-01-2018-0066.

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Purpose The successful use of the standard extended Kalman filter (EKF) is restricted by the requirement on the statistics information of the measurement noise. The covariance of the measurement noise may deviate from its nominal value in practical environment, and the filtering performance may decline because of the statistical uncertainty. Although the adaptive EKF (AEKF) is available for recursive covariance estimation, it is often less accurate than the EKF with accurate noise statistics. Design/methodology/approach Aiming at this problem, this paper develops a parallel adaptive EKF (PAEKF) by combining the EKF and the AEKF with an adaptive law, such that the final state estimate is dominated by the EKF when the prior noise covariance is accurate, while the AEKF is activated when the actual noise covariance deviates from its nominal value. Findings The PAEKF can reduce the sensitivity of the algorithm to the model uncertainty and ensure the estimation accuracy in the normal case. The simulation results demonstrate that the PAEKF has the advantage of both the AEKF and the EKF. Practical implications The presented algorithm is applicable for spacecraft relative attitude and position estimation. Originality/value The PAEKF is presented for a kind of nonlinear uncertain systems. Stability analysis is provided to show that the error of the estimator is bounded under certain assumptions.

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Shahbaz, Muhammad, and Avik Sinha. "Environmental Kuznets curve for CO2 emissions: a literature survey." Journal of Economic Studies 46, no. 1 (January 7, 2019): 106–68. http://dx.doi.org/10.1108/jes-09-2017-0249.

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Purpose The purpose of this paper is to provide a survey of the empirical literature on environmental Kuznets curve (EKC) estimation of carbon dioxide (CO2) emissions over the period of 1991–2017. Design/methodology/approach This survey categorizes the studies on the basis of power of income in empirical models of EKC. It has been hypothesized that the EKC shows an inverted U-shaped association between economic growth and CO2 emissions. Findings For all the contexts, the results of EKC estimation for CO2 emissions are inconclusive in nature. The reasons behind this discrepancy can be attributed to the choice of contexts, time period, explanatory variables, and methodological adaptation. Research limitations/implications The future studies in this context should not only consider new set of variables (e.g. corruption index, social indicators, political scenario, energy research and development expenditures, foreign capital inflows, happiness, population education structure, public investment toward alternate energy exploration, etc.), but also the data set should be refined, so that the EKC estimation issues raised by Stern (2004) can be addressed. Originality/value By far, no study in the literature of ecological economics has focused on the empirical estimation of EKC for CO2 emissions. This particular context has been used for this study, as CO2 is one of the highest studied pollutants in the ecological economics, and especially within the EKC hypothesis framework.

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Sippel, S., F. E. L. Otto, M. Forkel, M. R. Allen, B. P. Guillod, M. Heimann, M. Reichstein, S. I. Seneviratne, K. Thonicke, and M. D. Mahecha. "A novel bias correction methodology for climate impact simulations." Earth System Dynamics 7, no. 1 (February 2, 2016): 71–88. http://dx.doi.org/10.5194/esd-7-71-2016.

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Abstract. Understanding, quantifying and attributing the impacts of extreme weather and climate events in the terrestrial biosphere is crucial for societal adaptation in a changing climate. However, climate model simulations generated for this purpose typically exhibit biases in their output that hinder any straightforward assessment of impacts. To overcome this issue, various bias correction strategies are routinely used to alleviate climate model deficiencies, most of which have been criticized for physical inconsistency and the nonpreservation of the multivariate correlation structure. In this study, we introduce a novel, resampling-based bias correction scheme that fully preserves the physical consistency and multivariate correlation structure of the model output. This procedure strongly improves the representation of climatic extremes and variability in a large regional climate model ensemble (HadRM3P, climateprediction.net/weatherathome), which is illustrated for summer extremes in temperature and rainfall over Central Europe. Moreover, we simulate biosphere–atmosphere fluxes of carbon and water using a terrestrial ecosystem model (LPJmL) driven by the bias-corrected climate forcing. The resampling-based bias correction yields strongly improved statistical distributions of carbon and water fluxes, including the extremes. Our results thus highlight the importance of carefully considering statistical moments beyond the mean for climate impact simulations. In conclusion, the present study introduces an approach to alleviate climate model biases in a physically consistent way and demonstrates that this yields strongly improved simulations of climate extremes and associated impacts in the terrestrial biosphere. A wider uptake of our methodology by the climate and impact modelling community therefore seems desirable for accurately quantifying changes in past, current and future extremes.

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Gesser-Edelsburg, Anat, Nathan Stolero, Emilio Mordini, Matthew Billingsley, James J. James, and Manfred S. Green. "Emerging Infectious Disease (EID) Communication During the 2009 H1N1 Influenza Outbreak: Literature Review (2009-2013) of the Methodology Used for EID Communication Analysis." Disaster Medicine and Public Health Preparedness 9, no. 2 (April 2015): 199–206. http://dx.doi.org/10.1017/dmp.2014.126.

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ABSTRACTObjectiveThis year alone has seen outbreaks of epidemics such as Ebola, Chikungunya, and many other emerging infectious diseases (EIDs). We must look to the responses of recent outbreaks to help guide our strategies in current and future outbreaks or we risk repeating the same mistakes. The objective of this paper was to conduct a systematic literature review of the methodology used by studies that examined EID communication during the 2009 H1N1 pandemic outbreak through different communication channels or by analyzing contents and strategies.MethodsThis was a systematic review of the literature (n=61) studying risk communication strategies of H1N1 influenza, published between 2009 and 2013, and retrieved from searches of computerized databases, hand searches, and authoritative texts by use of specific search criteria. Searches were followed by review, categorization, and mixed qualitative and quantitative content analysis.ResultsOf 41 articles that used quantitative methods, most used surveys (n=35); some employed content analyses (n=4) and controlled trials (n=2). The 16 articles that employed qualitative methods relied on content analyses (n=10), semi-structured interviews (n=2) and focus groups (n=4). Four more articles used mixed-methods or nonstandard methods. Seven different topic categories were found: risk perception and effects on behaviors, framing the risk in the media, public concerns, trust, optimistic bias, uncertainty, and evaluating risk communication.ConclusionsUp until 2013, studies tended to be descriptive and quantitative rather than discursive and qualitative and to focus on the role of the media as representing information and not as a medium for actual communication with the public. Several studies from 2012, and increasingly more in 2013, addressed issues of discourse and framing and the complexity of risk communication with the public. Formative evaluations that use recommendations from past research when designing communication campaigns from the first stages of crises are recommended. Research should employ diverse triangulation processes based on representatives from different stakeholders. Further studies should address the potential offered by social media to create dialogue with individuals and the public at large. (Disaster Med Public Health Preparedness. 2015;9:199-206)

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Correia, Manuela, Cristina Delerue-Matos, and Arminda Alves. "Development of a SPME-GC-ECD methodology for selected pesticides in must and wine samples." Fresenius' Journal of Analytical Chemistry 369, no. 7-8 (April 24, 2001): 647–51. http://dx.doi.org/10.1007/s002160100762.

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Yang, Yang, X. San Liang, Bo Qiu, and Shuiming Chen. "On the Decadal Variability of the Eddy Kinetic Energy in the Kuroshio Extension." Journal of Physical Oceanography 47, no. 5 (May 2017): 1169–87. http://dx.doi.org/10.1175/jpo-d-16-0201.1.

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AbstractPrevious studies have found that the decadal variability of eddy kinetic energy (EKE) in the upstream Kuroshio Extension is negatively correlated with the jet strength, which seems counterintuitive at first glance because linear stability analysis usually suggests that a stronger jet would favor baroclinic instability and thus lead to stronger eddy activities. Using a time-varying energetics diagnostic methodology, namely, the localized multiscale energy and vorticity analysis (MS-EVA), and the MS-EVA-based nonlinear instability theory, this study investigates the physical mechanism responsible for such variations with the state estimate from the Estimating the Circulation and Climate of the Ocean (ECCO), Phase II. For the first time, it is found that the decadal modulation of EKE is mainly controlled by the barotropic instability of the background flow. During the high-EKE state, violent meanderings efficiently induce strong barotropic energy transfer from mean kinetic energy (MKE) to EKE despite the rather weak jet strength. The reverse is true in the low-EKE state. Although the enhanced meander in the high-EKE state also transfers a significant portion of energy from mean available potential energy (MAPE) to eddy available potential energy (EAPE) through baroclinic instability, the EAPE is not efficiently converted to EKE as the two processes are not well correlated at low frequencies revealed in the time-varying energetics. The decadal modulation of barotropic instability is found to be in pace with the North Pacific Gyre Oscillation but with a time lag of approximately 2 years.

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Mącik, Radosław. "FORMS AND SCOPE OF RESEARCH METHODOLOGY INFORMATION IN POLISH SCIENTIFIC JOURNALS FOR MARKETING AND CONSUMPTION." Ekonometria 4, no. 58 (2017): 77–94. http://dx.doi.org/10.15611/ekt.2017.4.05.

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Liu, Hongbo, Hanho Kim, Shuanglu Liang, and Oh-Sang Kwon. "Export Diversification and Ecological Footprint: A Comparative Study on EKC Theory among Korea, Japan, and China." Sustainability 10, no. 10 (October 12, 2018): 3657. http://dx.doi.org/10.3390/su10103657.

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This study examines the Environmental Kuznets Curve (EKC) hypothesis by adopting a country’s ecological footprint as an indicator of environmental degradation in three East Asian countries: Japan, Korea, and China. During the development process, countries intend to balance between stabilizing export demand and maintaining sustainable economic improvement in the context of deteriorating global warming and climate change. The Environmental Kuznets Curve (henceforth, EKC) was originally developed to estimate the correlation between environment condition and economic development. In this paper, we started from the EKC model and adopted an Error Correction Methodology (henceforth, ECM) to estimate the EKC relationships in Japan, Korea (two developed countries), and China (a developing country) over the period of 1990 to 2013. Besides this, instead of only using Gross Domestic Product (henceforth, GDP), two subdivisions of trade diversification—export product diversification and export market diversification—are introduced as proxy variables for economic development in rectification of the EKC. The results demonstrate that both Korea and Japan satisfy the EKC theory by demonstrating an inverted U-shaped relationship between economic development and ecological footprint, while analysis based on data from China does not display the same tendency. For both export product diversification and market diversification, the more diversified the country’s export is, the bigger its ecological footprint. The policy implications of this econometric outcome are also discussed.

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Yekini, Kemi, Ismail Adelopo, Yan Wang, and Surong Song. "Post-regulation effect on factors driving environmental disclosures among Chinese listed firms." Accounting Research Journal 32, no. 3 (September 27, 2019): 477–95. http://dx.doi.org/10.1108/arj-01-2017-0018.

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Purpose The purpose of this study is to re-examine the factors that affect the level of environmental information disclosures (EID) following the issuance of the “Environmental Information Disclosure Guidelines for Chinese Listed Companies”. Design/methodology/approach The study is underpinned by stakeholder and legitimacy theories. Level of EID was measured for 100 Chinese companies using a scoring system and content analysis of their annual reports. The study explored the effect of ownership structure, managerial shareholding, economic power and industry classification on the level of EID using panel regression. Findings The study revealed that with clearly spelt out guidelines, Chinese companies are prepared to disclose environmental information regardless of their economic power. It was found that the overall level of EID in China remains lower than in developed economies. The findings are robust across several econometric models that sufficiently address various endogeneity problems. Originality/value This paper contributes to the existing literature by using new and updated data to re-examine the factors that affect the level of EID among Chinese listed companies. The study is important and timely as it covers the period 2014-2016, which is after the Chinese Government strengthened the enforcement of EID. It highlights the effects of new regulations and underscored areas that still require government attention to foster effective environmental protection.

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Ma, Qiang, and Zhenqian Chen. "Numerical study on the effect of EHD flow on mass transfer of gas mixtures." International Journal of Numerical Methods for Heat & Fluid Flow 27, no. 10 (October 2, 2017): 2268–88. http://dx.doi.org/10.1108/hff-09-2016-0360.

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Purpose The paper aims to discuss the mass transfer of gas mixtures under the influence of electrohydrodynamic (EHD) flow induced by direct current (DC) corona discharge of wire-to-plane electrode, using a coupled numerical model. Design/methodology/approach A coupled numerical method is developed in this paper. Lattice Boltzmann model of binary gas mixtures coupled with the Coulomb force as an external force is introduced to predict the gas flow and species transport affected by EHD flow. Meanwhile, the distributions of electric field and space charge density during DC corona discharge are obtained using the finite difference method and the method of characteristics. Findings The numerical results of mass transfer effected by EHD flow reveal that the high electric field intensity is observed near the surface of corona wire, which causes the higher Coulomb force to form the EHD flow pattern of anticlockwise vortex. The EHD vortex flow plays a considerable role in the mass transport enhancement of gas species emit from the plane electrode, and the significant difference of the local Sherwood number is presented along the direction parallel to plane electrode. In addition, the enhance effectiveness with the different applied voltage is assessed, and the influencing mechanism of enhancement is investigated in this work. Originality/value The proposed numerical model will be useful in the study of mass transfer and fluid flow effected by EHD.

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Nutakor, Felix, Sylvestre Bizumuremyi, Jinke Li, and Wei Liu. "Does the Environmental Kuznets Curve for CO2 Emissions Exist for Rwanda? Evidence from Bootstrapped Rolling-Window Granger Causality Test." Sustainability 12, no. 20 (October 19, 2020): 8636. http://dx.doi.org/10.3390/su12208636.

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This paper examined the causal relationship between economic growth and carbon dioxide emissions (CO2) in Rwanda using annual data from 1960–2014. The study was conducted within the framework of the environmental Kuznets curve (EKC) hypothesis using the rolling-window bootstrap Granger causality test approach with a rolling-window size of 15 years. The methodology allows for non-constancy in the parameters of the vector autoregression (VAR) model in the short run as well as in the long run. The study found bi-direction causality between the real gross domestic product (GDP) and CO2 emissions in metric tons per capita. The results from the rolling-window bootstrap Granger causality test show that GDP negatively influenced CO2 emissions in the 1976–1977, 1990–1993, 2005–2006, and 2007–2013 sub-sample periods. This result depicts a monotonically decreasing EKC, contrary to the standard EKC relationship. The downward-sloping EKC was explained by the transition of the Rwandan economy from an industrial-based economy to a service-based economy. Further, a feedback effect from CO2 emissions to the economy was established.

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Gibilaro, Lucia, and Gianluca Mattarocci. "Multiple banking relationships and exposure at default." Journal of Financial Regulation and Compliance 26, no. 1 (February 12, 2018): 2–19. http://dx.doi.org/10.1108/jfrc-04-2016-0031.

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Purpose This paper aims to analyse the exposure at default (EAD) in the event of multiple banking relationships to understand the differences with respect to solo banking relationships and forecast the banks risk exposure. Design/methodology/approach The paper uses a unique database provided by the Italian public credit register representative of the full Italian market before the financial crisis. The analysis compares different EAD risk proxies for debtors with unique and multiple banking relationships to underline the main differences among the two groups. Findings Results show that EAD forecast could be improved considering the existence of exposures with other lenders and banks that consider such type of information can reduce the risk of underestimating the risk exposure of a debtor. Originality/value The paper is the first attempt to model the EAD on the basis of the existence of multiple lending exposures. Results demonstrate a different lender’s risk exposure for debtors with multiple credit risk exposure and show the usefulness of the information about the overall system exposure in evaluating the risk exposure related to this type of customers.

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Lin, Jia-Hong, and Wei-Song Lin. "Extended Kalman Filter-Based Codec for Chaotic Communication Systems." International Journal of Bifurcation and Chaos 24, no. 07 (July 2014): 1450094. http://dx.doi.org/10.1142/s0218127414500941.

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Two methods are presented to encode and decode messages accurately with an expanded matrix representation of linear multivariable systems in which parameters are used to describe three-port chaotic secure communication networks. The matrix representation includes an optimal extended Kalman filter (EKF)-based observer, which is linear with time. The optimal linearization technique is used to find the exact linear models of the chaotic system at operating states of interest. Subsequently, the EKF algorithm is used to estimate the parameters and states in which a message is embedded. Using the EKF with the optimal linear model, the message can be adequately recovered at the receiver. However, the bit error rate is insufficiently small; therefore, presynchronizations and the carrier-digitalized sources are used to reduce the error rate to obtain robust communications. Numerical examples and simulation results demonstrate the effectiveness of the proposed methodology.

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Hedström, Karin, Elin Wihlborg, Mariana S. Gustafsson, and Fredrik Söderström. "Constructing identities – professional use of eID in public organisations." Transforming Government: People, Process and Policy 9, no. 2 (May 18, 2015): 143–58. http://dx.doi.org/10.1108/tg-11-2013-0049.

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Purpose – The purpose of the paper is to reveal how identities are constructed when electronic identification (eIDs) cards are introduced through information systems in public organisations. Design/methodology/approach – Through two case studies, the authors generate rich data on the construction of identities through use of eID within public organisations. The author’s analysis, based on actor network theory, focusses on the translation of eIDs in these two settings. Findings – ID can be viewed as an artefact where the public and private spheres meet. The authors found at least three mixed roles in employees’ use of eID: as a purely private person; as a private person in the work place; and as a professional in the work place. Research limitations/implications – There is a need for further research on how eID is translated into organisational contexts and how institutional settings define the openings for local translation processes. However, the results are based on two small cases, meaning that broad generalisations are difficult to make. Practical implications – EID is so much more than technology. The technical framing of the identification system appears to be subordinated to organisational arrangements and cultures, making it important to apply a socio-technical perspective when working with eID. Originality/value – The empirical cases have offered a unique chance to study implementation and use of eID in two very different public service organisations. The findings illustrate how eID translated into organisational contexts, and how identity management within an organisational setting is linked to the employees’ private and professional roles.

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Santos, Ana Cristina de Mendonça, Maria Teresa Ribeiro Pêssoa, and Maria de Fatima Hanaque Campos. "METODOLOGIAS DE DIFUSÃO DO CONHECIMENTO NO ENSINO SUPERIOR EAD: contribuições dos MOOCS." Revista Observatório 5, no. 4 (July 1, 2019): 579–612. http://dx.doi.org/10.20873/uft.2447-4266.2017v5n4p579.

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Este artigo apresenta uma pesquisa realizada durante a realização do Estágio Doutoral Sanduíche na Universidade de Coimbra/Portugal, sobres as contribuições das metodologias utilizadas nos MOOCs para o processo de difusão do conhecimento no Ensino Superior EAD. Tem como objetivo geral investigar as contribuições dos MOOCs operacionalizados em três Universidades de Portugal para a construção de uma metodologia de difusão de conhecimento em ambientes virtuais de aprendizagens. A metodologia de abordagem qualitativa ocorreu por meta-análise das produções postadas no repositório aberto de Portugal; estudo bibliográfico; e entrevistas semiestruturadas com pesquisadores das Universidades investigadas. Os resultados do estudo mostraram que o MOOC traz contribuições significativas ao Ensino Superior EAD, como: acesso e partilha do conhecimento produzido na universidade; aproximação entre o ensino informal e formal e valorização do ensino à distância. PALAVRAS-CHAVE: MOOC; Difusão de conhecimento; Ensino superior EAD; Metodologias. ABSTRACT This article presents a research carried out during the Sanduíche PhD in the University of Coimbra / Portugal, about the contributions of the methodologies used in the MOOCs to the process of diffusion of knowledge in Higher Education EAD. It has as general objective to investigate the contributions of the operational MOOCs in three Universities of Portugal for the construction of a methodology of diffusion of knowledge in virtual learning environments. The methodology of qualitative approach occurred by meta-analysis of the productions posted in the open repository of Portugal; bibliographic study; and semi-structured interviews with researchers from the investigated universities. The results of the study showed that the MOOC brings significant contributions to Higher Education EAD, such as: access and sharing of the knowledge produced in the university; informal and formal education and valuing distance learning. KEYWORDS: MOOC. Diffusion of knowledge. Higher education EAD. Methodologies. RESUMEN En este artículo se presenta un estudio llevado a cabo durante el curso del sándwich formación de doctorado de la Universidad de Coimbra / Portugal, perdona a los aportes de las metodologías utilizadas en MOOCs para el proceso de difusión del conocimiento en EAD Educación Superior. Es para investigar las contribuciones de MOOCs operacionalizar de tres universidades en Portugal para construir una metodología de difusión del conocimiento en entornos virtuales de aprendizaje. La metodología cualitativa producido por el meta-análisis de producciones publicadas en repositorio abierto de Portugal; estudio bibliográfico; y entrevistas semiestructuradas con investigadores de las Universidades investigadas. Los resultados del estudio mostraron que el MOOC aporta contribuciones significativas a la Enseñanza Superior EAD, como: acceso y reparto del conocimiento producido en la universidad; aproximación entre la enseñanza informal y formal y la valorización de la enseñanza a distancia. PALABRAS CLAVE: MOOC. Difusión de conocimiento. Enseñanza superior EAD. Metodologías.

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Anggarani, Ni Putu Dewi, and I. Nyoman Sukma Arida. "Implementasi Management Krisis Pariwisata Pada Kebun Raya Eka Karya Bali." JURNAL DESTINASI PARIWISATA 6, no. 1 (July 1, 2018): 184. http://dx.doi.org/10.24843/jdepar.2018.v06.i01.p28.

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Eka Karya Bali Botanical Garden has experienced two times crisis caused by natural factors such as flash floods and landslides. In the last two years there have been recorded two similar natural disasters on Wednesday, December 21st 2016 and Thursday, February 9th 2017. This study aims to find out how the effort to implement the management of tourism crisis after natural disasters at Eka Karya Bali Botanical Garden. This research is important because the state of the crisis can happen anytime, and often happens suddenly. In the absence of proper handling, the sustainability of tourism can be threatened. The research methodology used in this research is qualitative research, with in-depth interview technique and literature study. The concepts are used in this research of implementation effort, crisis management and natural disaster to analize the problems. Data are explained by using table and description to explaining the steps that must exist. Moreover, wether Eka Karya Bali Botanical Garden implement tourism crisis management. The results of study show that the flow of the crisis that occurs through four stages, Eka Karya Bali Botanical Garden tends to use traditional management approach, and the results show that Eka Karya Bali Botanical Gardens has not been maximized the implementation of tourism crisis management, especially in the case of natural disasters. Keywords: Implementation, Crisis Management, Natural Disaster, Eka Karya Bali Botanical Garden

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Sharma, Neeraj, Neeraj Ahuja, Rachin Goyal, and Vinod Rohilla. "Parametric optimization of EDD using RSM-Grey-TLBO-based MCDM approach for commercially pure titanium." Grey Systems: Theory and Application 10, no. 2 (April 6, 2020): 231–45. http://dx.doi.org/10.1108/gs-01-2020-0008.

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PurposeElectric discharge drilling (EDD) is used to drill quality microholes on any conductive materials. EDD process parameters play a crucial role in the drilling. Depending upon the material characteristics, the cost of drilling also changes. Therefore, a suitable method is required to control the process parameters and drill quality microholes.Design/methodology/approachThe input process parameters in the present work are peak current (Ip), pulse on-time (Ton) and pulse off-time (Toff). The trials were intended in accordance to central composite face-centered design of response surface methodology (RSM). The output responses, namely drilling rate (DR) and electrode wear ratio (EWR), were converted into a single response, that is, grade using Grey relational analysis (GRA). The grade value is further modeled by regression analysis. The empirical model was figured out using teaching–learning-based optimization (TLBO). The RSM-Grey-TLBO-based multicriteria decision-making (MCDM) is used to investigate the optimized process parameter setting.FindingsThe RSM-Grey-TLBO-based MCDM approach suggests that the optimized setting for DR and EWR is Ip: 3A; Ton: 40 µs; Toff: 42 µs. The percentage errors for the predicted and experimental results are 8.1 and 7.5% in DR and EWR, respectively.Originality/valueThe parametric optimization of EDD using RSM-Grey-TLBO-based MCDM approach while machining commercially pure titanium is still underway. Thus, this MCDM approach will give a path to the researchers working in this direction.

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Roveda, Loris, and Dario Piga. "Sensorless environment stiffness and interaction force estimation for impedance control tuning in robotized interaction tasks." Autonomous Robots 45, no. 3 (March 2021): 371–88. http://dx.doi.org/10.1007/s10514-021-09970-z.

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AbstractIndustrial robots are increasingly used to perform tasks requiring an interaction with the surrounding environment (e.g., assembly tasks). Such environments are usually (partially) unknown to the robot, requiring the implemented controllers to suitably react to the established interaction. Standard controllers require force/torque measurements to close the loop. However, most of the industrial manipulators do not have embedded force/torque sensor(s) and such integration results in additional costs and implementation effort. To extend the use of compliant controllers to sensorless interaction control, a model-based methodology is presented in this paper. Relying on sensorless Cartesian impedance control, two Extended Kalman Filters (EKF) are proposed: an EKF for interaction force estimation and an EKF for environment stiffness estimation. Exploiting such estimations, a control architecture is proposed to implement a sensorless force loop (exploiting the provided estimated force) with adaptive Cartesian impedance control and coupling dynamics compensation (exploiting the provided estimated environment stiffness). The described approach has been validated in both simulations and experiments. A Franka EMIKA panda robot has been used. A probing task involving different materials (i.e., with different - unknown - stiffness properties) has been considered to show the capabilities of the developed EKFs (able to converge with limited errors) and control tuning (preserving stability). Additionally, a polishing-like task and an assembly task have been implemented to show the achieved performance of the proposed methodology.

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Geesa, Rachel Louise, Kat R. McConnell, Nicholas Patrick Elam, and Ellie Clark. "Mentor support systems in a doctoral mentoring program." Studies in Graduate and Postdoctoral Education 11, no. 3 (November 19, 2020): 311–27. http://dx.doi.org/10.1108/sgpe-10-2019-0081.

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Purpose Education doctoral (EdD) students (mentees) typically hold full-time leadership positions in education-related fields while completing their degree. The types of support these scholar-practitioners need is unique because of their focus on balancing full-time work, academic, and personal needs. This study aims to explore mentor support systems for mentees in their first and second year of the EdD program through a group mentoring program, which is designed to provide resources and access to mentors to promote successful degree completion in five years or less. Design/methodology/approach Mentors participated in monthly presentations and discussions with mentees throughout the 2018–2019 academic year, which were video recorded. At the end of the academic year, mentors partook in an interview or focus group meeting. Findings Themes emerged related to mentors’ focus on the dissertation process; emphasis on outreach for support; discussions and work/life balance; selection of presentation topics; perceptions of networking opportunities with mentees; desire to build stronger connections with mentees; and concerns/opinions about the mentoring format. Research limitations/implications The design of a mentoring program for EdD mentees varies throughout the doctorate degree pathway. Mentors support mentees in their doctoral journey through presentations and discussions about relevant topics during their first two years in the doctoral program. Additional studies are needed regarding EdD mentoring programs for students in the third year to the completion of the degree. Originality/value Few studies exist related to mentoring programs for scholar-practitioners in EdD programs. Results from this research provide EdD faculty and advisors insights to group mentoring and discussion topics for first and second year EdD students, based on the mentors’ perspectives.

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Hua, Song, Huiyin Huang, Fangfang Yin, and Chunling Wei. "Constant-gain EKF algorithm for satellite attitude determination systems." Aircraft Engineering and Aerospace Technology 90, no. 8 (November 5, 2018): 1259–71. http://dx.doi.org/10.1108/aeat-03-2017-0088.

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Purpose This paper aims to propose a constant-gain Kalman Filter algorithm based on the projection method and constant dimension projection, which ensures that the dimension of the observation matrix obtained is maintained when there is a satellite with multiple sensors. Design/methodology/approach First, a time-invariant observation matrix is determined with the projection method, which does not require the Jacobi matrix to be calculated. Second, the constant-gain matrix replaces the EKF (extended Kalman filter) gain matrix, which requires online computation, considerably improving the stability and real-time properties of the algorithm. Findings The simulation results indicate that compared to the EKF algorithm, the constant-gain Kalman filter algorithm has a considerably lower computational burden and improved real-time properties and stability without a significant loss of accuracy. The algorithm based on the constant dimension projection has better real-time properties, simpler computations and greater fault tolerance than the conventional EKF algorithm when handling an attitude determination system with three or more star trackers. Originality/value In satellite attitude determination systems, the constant-gain Kalman Filter algorithm based on the projection method reduces the large computational burden and improve the real-time properties of the EKF algorithm.

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Egbetokun, Samuel, Evans Osabuohien, Temidayo Akinbobola, Olaronke Toyin Onanuga, Obindah Gershon, and Victoria Okafor. "Environmental pollution, economic growth and institutional quality: exploring the nexus in Nigeria." Management of Environmental Quality: An International Journal 31, no. 1 (January 13, 2020): 18–31. http://dx.doi.org/10.1108/meq-02-2019-0050.

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Purpose Interaction between environmental pollution and economic growth determines the achievement of the green growth objective of developing economies. An economy turns around the inverted U-shaped environmental Kuznets curve (EKC) when pollution is effectively dampened by social, political and economic factors as such economy grows. Thus, the purpose of this paper is to examine the EKC considering the impact of institutional quality on six variables of environmental pollution (carbon dioxide (CO2), nitrous oxide (N2O), suspended particulate matters (SPM), rainfall, temperature and total greenhouse emission (TGH)) using the case of Nigeria. Design/methodology/approach The EKC model includes population density, education expenditure, foreign direct investment and gross domestic investment as control variables, and it was analysed using the autoregressive distribution lag (ARDL) econometric technique, which has not been applied in the literature on Nigeria. Findings The results, inter alia, indicate that there is EKC for CO2 and SPM. This implies that the green growth objective can be pursued in Nigeria with concerted efforts. Other environmental pollution indicators did not exert significant influence on economic growth. Practical implications Therefore, it is recommended that Nigeria’s institutional quality be strengthened to limit environmental pollution in light of economic growth. Originality/value Previous studies are yet to apply a more developed econometric method, like the ARDL, to estimate the EKC model for Nigeria. This study fills this observed knowledge gap.

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Matošková, Jana, Lucie Garczarzová, and Martin Kovářík. "The Using of the Q Methodology in Creation an Instrument for Measuring Tacit Knowledge of University Students." e-Pedagogium 16, no. 1 (February 1, 2016): 14–27. http://dx.doi.org/10.5507/epd.2016.002.

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Curtin, Susan, David DeJong, Derrick Robinson, Karen Card, and Ayana Campoli. "Preparing Scholar-Practitioners for Systemic and Systematic Inquiry: Methodology Published and Practiced." Voices of Reform 3, no. 2 (December 29, 2020): 40–70. http://dx.doi.org/10.32623/3.10004.

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This study explores the methodology presented in four leading educational leadership journals for a period of three years to investigate the predominant methodologies reported in journals most read by faculty members in educational administration or leadership programs. This content analysis study uses frequency and percentages to gather data on the published methodologies of four educational leadership journals. We used an established coding protocol, and our coding was not interpretive. The analysis revealed that qualitative methods were published more frequently than quantitative methods in the leading educational leadership journals with an emphasis on studies using a descriptive qualitative design, a descriptive quantitative design, correlational research, and case studies. This study replicated a study conducted by Wells, Kolek, Williams, and Saunders (2015) which was a content analysis of three major higher education journals to examine the methodologic characteristics of published research from 1996-2000 and 2006-2010 respectively. The authors discuss the relevance of the study for EdD programs in Educational Administration/Leadership. The analysis may inform decisions about how to best develop scholar-practitioners’ capacity to use systemic and systematic inquiry to solve complex problems of practice.

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Yu, Yang, Zhongjie Wang, and Chengchao Lu. "An extended Kalman particle filter for power system dynamic state estimation." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 6 (November 5, 2018): 1993–2005. http://dx.doi.org/10.1108/compel-11-2017-0493.

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Purpose The purpose of this paper is to propose an extended Kalman particle filter (EPF) approach for dynamic state estimation of synchronous machine using the phasor measurement unit’s measurements. Design/methodology/approach EPF combines the extended Kalman filter (EKF) with the particle filter (PF) to accurately estimate the dynamic states of synchronous machine. EKF is used to make particles of PF transfer to the likelihood distribution from the previous distribution. Therefore, the sample impoverishment in the implementation of PF is able to be avoided. Findings The proposed method is capable of estimating the dynamic states of synchronous machine with high accuracy. The real-time capability of this method is also acceptable. Practical implications The effectiveness of the proposed approach is tested on IEEE 30-bus system. Originality/value Introducing EKF into PF, EPF is proposed to estimate the dynamic states of synchronous machine. The accuracy of a dynamic state estimation is increased.

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Superchi, Stefano, Patrizia Scafato, Marcin Gorecki, and Gennaro Pescitelli. "Absolute Configuration Determination by Quantum Mechanical Calculation of Chiroptical Spectra: Basics and Applications to Fungal Metabolites." Current Medicinal Chemistry 25, no. 2 (January 22, 2018): 287–320. http://dx.doi.org/10.2174/0929867324666170310112009.

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Background: Quantum mechanical simulations of chiroptical properties, such as electronic circular dichroism (ECD), optical rotation (OR), and vibrational circular dichroism (VCD), have rapidly become very popular to assign the absolute configuration of novel natural products. Objective: We review the application of the ECD/OR/VCD computational methodology to chiral metabolites of fungal origin. First, we summarize the fundamentals of the three spectroscopies; then, we focus on the specific experimental and computational issues allied to the application of their calculations. Methods: We surveyed the entire literature describing the use of ECD/OR/VCD computations for fungal metabolites, and catalogued all papers according to the method employed and to the structural family of compounds. Then, we chose several examples to illustrate the use of the techniques and highlight the practical application of the computational approach. Results: Our literature survey demonstrates that the simulation of ECD/OR/VCD spectra is nowadays widespread and accessible also to non-experts, although a good computational practice is necessary to avoid wrong assignments. ECD is still the most common technique used in the context of fungal metabolites. OR and VCD may be profitably employed when the compound of interest lacks chromophoric groups. Our examples illustrate that the combination of two or more chiroptical methods is strongly advisable in some cases, especially in the presence of high conformational flexibility, where a single technique does not lead to a safe conclusion. Conclusion: The ECD/OR/VCD computational approach is a reliable and versatile method to assign the absolute configuration of fungal metabolites and related natural products.

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Karimaei, Mostafa, Kiomars Sharafi, Masoud Moradi, Hamid Reza Ghaffari, Hamed Biglari, Hossein Arfaeinia, and Nazir Fattahi. "Optimization of a methodology for simultaneous determination of twelve chlorophenols in environmental water samples using in situ derivatization and continuous sample drop flow microextraction combined with gas chromatography-electron-capture detection." Analytical Methods 9, no. 19 (2017): 2865–72. http://dx.doi.org/10.1039/c7ay00530j.

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Continuous sample drop flow microextraction (CSDFME) combined with gas chromatography-electron-capture detection (GC-ECD) has been developed as a high preconcentration technique for the determination of chlorophenols (CPs) in environmental water samples.

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Tan, Seck. "Framework for valuing the utilization of the environment." International Journal of Social Economics 43, no. 6 (June 13, 2016): 619–42. http://dx.doi.org/10.1108/ijse-10-2014-0206.

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Purpose – The purpose of this paper is to apply a methodology (drawn from the literature) to value the environment as a capital. Design/methodology/approach – The main analytic framework considered is a factor utilization function, which traditionally deals with labour and manufactured capital. The development of a three-factor function in terms of labour, manufactured capital and environmental capital enables the display of mistaken notions of economic performance. Findings – The purpose of this illustration is to identify the patterns of environmental capital utilization as an economy grows. Although there are some differences in the patterns of environment utilization between Australia and Canada, the patterns observed are in line with that of the environmental Kuznets curve (EKC). Practical implications – This illustration is made with reference to two commodity-driven economies, namely, Australia and Canada. The findings could be used as a point of reference for resource rich economies. Originality/value – This paper illustrates an approach for valuing the environment as an economy grows. This approach is applied to two selected resource rich economies and the findings demonstrate traits similar to that of the EKC.

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Journal articles on the topic 'EKD methodology'

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