MCDM method on complex picture fuzzy soft environment

Author(s):  
S. Anita Shanthi ◽  
T. Umamakeswari ◽  
M. Saranya
Keyword(s):  
2020 ◽  
Vol 3 (3) ◽  
pp. 322-345 ◽  
Author(s):  
George Anderson ◽  
Russel J Reiter

As data emerges on the pathophysiological underpinnings of severe acute respiratory syndrome coronavirus (SARS-CoV)-2, it is clear that there are considerable variations in its susceptibility and severity/fatality, which give indications as to its pathophysiology and treatment. SARS-CoV-2 modulatory factors include age, vitamin D levels, cigarette smoking, gender and ethnicity as well as premorbid medical conditions, including diabetes, cancer, obesity, cardiovascular disease, and immune-compromised conditions. A complex picture is emerging, with an array of systemic physiological processes interacting including circadian, immune, intestinal, CNS and coagulation factors. This article reviews data on SARS-CoV-2 pathoetiology and pathophysiology. It is proposed that a decrease in pineal and systemic melatonin is an important driver of SARS-CoV-2 susceptibility and severity, with the loss of pineal melatonin's induction of the alpha 7 nicotinic acetylcholine receptor (α7nAChR) in pulmonary epithelial cells and immune cells being a powerful regulator of susceptibility and severity, respectively. Stress, including discrimination stress, and decreased vitamin D also regulate SARS-CoV-2, including via gut dysbiosis and permeability, with a resultant decrease in the short-chain fatty acid, butyrate, and increase in circulating lipopolysaccharide. Stress and cytokine induction of the kynurenine pathways, leads to aryl hydrocarbon receptor activation, which primes platelets for heightened activity, coagulation and thrombin production, thereby driving elevations in thrombin that underpin many SARS-CoV-2 fatalities. On the basis of these pathophysiological changes, prophylactic and symptomatic treatments are proposed, including the use of melatonin and α7nAChR agonism. 


2020 ◽  
Vol 17 (3) ◽  
pp. 334-354
Author(s):  
Zach Bates

Due to its status as a territory under the joint rule of Egypt and Britain, the Sudan occupied an awkward place in the British Empire. Because of this, it has not received much attention from scholars. In theory, it was not a colony, but, in practice, the Sudan was ruled primarily by British administrators and was the site of several developmental schemes, most of which concerned cotton-growing and harnessing the waters of the Nile. It was also the site of popular literature, travelogues and the most well-known of Alexander Korda's empire films. This article focuses on five British films –  Cotton Growing in the Sudan (c.1925), Stark Nature (1930), Stampede (1930), The Four Feathers (1939) and They Planted a Stone (1953) – that take the Sudan as their subject. It argues that each of these films shows an evolving and related discourse of the region that embraced several motifs: cooperation as the foundation of the relationship between the Sudanese and the British; Sudanese peoples in conflict with a sometimes hostile landscape and environment that the British could ‘tame’; and the British being in the Sudan in order to improve it and its people before leaving them to self-government. However, some of the films, especially The Four Feathers, subtly questioned and subverted the British presence in the Sudan and engaged with a number of the political questions not overtly mentioned in documentaries. The article, therefore, argues for a nuanced and complex picture of representations of the Sudan in British film from 1925 to 1953.


Author(s):  
Matthew Rendle

This book provides the first detailed account of the role of revolutionary justice in the early Soviet state. Law has often been dismissed by historians as either unimportant after the October Revolution amid the violence and chaos of civil war or even, in the absence of written codes and independent judges, little more than another means of violence. This is particularly true of the most revolutionary aspect of the new justice system, revolutionary tribunals—courts inspired by the French Revolution and established to target counter-revolutionary enemies. This book paints a more complex picture. The Bolsheviks invested a great deal of effort and scarce resources into building an extensive system of tribunals that spread across the country, including into the military and the transport network. At their peak, hundreds of tribunals heard hundreds of thousands of cases every year. Not all ended in harsh sentences: some were dismissed through lack of evidence; others given a wide range of sentences; others still suspended sentences; and instances of early release and amnesty were common. This book, therefore, argues that law played a distinct and multifaceted role for the Bolsheviks. Tribunals stood at the intersection between law and violence, offering various advantages to the Bolsheviks, not least strengthening state control, providing a more effective means of educating the population on counter-revolution, and enabling a more flexible approach to the state’s enemies. All of this adds to our understanding of the early Soviet state and, ultimately, of how the Bolsheviks held on to power.


2021 ◽  
pp. 1-11
Author(s):  
Hacer Yumurtacı Aydoğmuş ◽  
Eren Kamber ◽  
Cengiz Kahraman

The purpose of this study is to develop an extension of CODAS method using picture fuzzy sets. In this respect, a new methodology is introduced to figure out how picture fuzzy numbers can be applied to CODAS method. COmbinative Distance-based Assessment (CODAS) is a new MCDM method proposed by Ghorabaee et al. Picture fuzzy sets (PFSs) are a new extension of ordinary fuzzy sets for representing human’s judgments having possibility more than two answers such as yes, no, refusal and neutral. Compared with other studies, the proposed method integrates multi-criteria decision analysis with picture fuzzy uncertainty based on Euclidean and Taxicab distances and negative ideal solution. ERP system selection problem is handled as the application area of the developed method, picture fuzzy CODAS. Results indicate that the new proposed method finds meaningful rankings through picture fuzzy sets. Comparative analyzes show that the presented method gives successful and robust results for the solutions of MCDM problems under fuzziness.


2003 ◽  
Vol 16 (2) ◽  
pp. 71-84 ◽  
Author(s):  
B. Croxson ◽  
P. Allen ◽  
J. A. Roberts ◽  
K. Archibald ◽  
S. Crawshaw ◽  
...  

The problems associated with hospital-acquired infection have been causing increasing concern in England in recent years. This paper reports the results of a nationwide survey of hospital infection control professionals' views concerning the organizational structures used to manage and obtain funding for control of infection. A complex picture with significant variation between hospitals emerges. Although government policy dictates that specific funding for hospital infection control is formally made available, it is not always the case that infection control professionals have adequate resources to undertake their roles. In some cases this reflects the failure of hospitals' infection control budgetary mechanisms; in others it reflects the effects of decentralizing budgets to directorate or ward level. Some use was made of informal mechanisms either to supplement or to substitute for the formal ones. But almost all infection control professionals still believed they were constrained in their ability to protect the hospital population from the risk of infectious disease. It is clear that recent government announcements that increased effort will be made to support local structures and thereby improve the control of hospital acquired infection are to be welcomed.


Axioms ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 19
Author(s):  
Ramin Bazrafshan ◽  
Sarfaraz Hashemkhani Hashemkhani Zolfani ◽  
S. Mohammad J. Mirzapour Al-e-hashem

There are many sub-tour elimination constraint (SEC) formulations for the traveling salesman problem (TSP). Among the different methods found in articles, usually three apply more than others. This study examines the Danzig–Fulkerson–Johnson (DFJ), Miller–Tucker–Zemlin (MTZ), and Gavish–Graves (GG) formulations to select the best asymmetric traveling salesman problem (ATSP) formulation. The study introduces five criteria as the number of constraints, number of variables, type of variables, time of solving, and differences between the optimum and the relaxed value for comparing these constraints. The reason for selecting these criteria is that they have the most significant impact on the mathematical problem-solving complexity. A new and well-known multiple-criteria decision making (MCDM) method, the simultaneous evaluation of the criteria and alternatives (SECA) method was applied to analyze these criteria. To use the SECA method for ranking the alternatives and extracting information about the criteria from constraints needs computational computing. In this research, we use CPLEX 12.8 software to compute the criteria value and LINGO 11 software to solve the SECA method. Finally, we conclude that the Gavish–Graves (GG) formulation is the best. The new web-based software was used for testing the results.


Author(s):  
Faruk Karaaslan ◽  
Mohammed Allaw Dawood Dawood

AbstractComplex fuzzy (CF) sets (CFSs) have a significant role in modelling the problems involving two-dimensional information. Recently, the extensions of CFSs have gained the attention of researchers studying decision-making methods. The complex T-spherical fuzzy set (CTSFS) is an extension of the CFSs introduced in the last times. In this paper, we introduce the Dombi operations on CTSFSs. Based on Dombi operators, we define some aggregation operators, including complex T-spherical Dombi fuzzy weighted arithmetic averaging (CTSDFWAA) operator, complex T-spherical Dombi fuzzy weighted geometric averaging (CTSDFWGA) operator, complex T-spherical Dombi fuzzy ordered weighted arithmetic averaging (CTSDFOWAA) operator, complex T-spherical Dombi fuzzy ordered weighted geometric averaging (CTSDFOWGA) operator, and we obtain some of their properties. In addition, we develop a multi-criteria decision-making (MCDM) method under the CTSF environment and present an algorithm for the proposed method. To show the process of the proposed method, we present an example related to diagnosing the COVID-19. Besides this, we present a sensitivity analysis to reveal the advantages and restrictions of our method.


Author(s):  
Irina Ervits

AbstractIn light of the growing economic might and intensification of global activities of Chinese multinational enterprises (MNE), this paper looks into the nature of their corporate social responsibility (CSR) reporting. CSR communications of the largest Chinese companies and their counterparts from advanced economies have been compared based on quantitative and qualitative content analysis of CSR reports. A mixed method approach has been rarely utilized in the analysis of CSR reporting. To analyze CSR reports the paper uses a two-dimensional conceptual framework based on Wood (Acad Manag Rev 16:691–717, 1991); Jamali and Mirshak (J Bus Ethics 72:243–262, 2007) and Lockett, Moon and Visser (J Manag Stud 43:115–136, 2006); Moon and Shen (J Bus Ethics 94:613–629, 2010). The findings indicate that quantitatively Chinese MNEs display patterns of CSR reporting comparable to major MNEs in developed economies. This paper argues that just like MNEs from developed economies Chinese MNEs use a global CSR reporting template as a convenient tool to align and harmonize various isomorphic pressures. However, qualitatively substantive discrepancies in content have been also identified due to national or other contextual characteristics. The analysis reveals a complex picture of national and international isomorphic forces at play. The paper addresses the lack of consensus concerning convergence/divergence of CSR reporting across the globe and, more specifically, between developed economies and emerging markets. In this respect this paper responds to the general call for research looking into various aspects of business operations, including CSR reporting, of MNEs from emerging markets.


2001 ◽  
Vol 33 (8) ◽  
pp. 1371-1384 ◽  
Author(s):  
Richard Willis ◽  
J Neill Marshall ◽  
Ranald Richardson

The authors examine the impact of the remote delivery of financial services on the branch network of British building societies. The current phase of branch-network rationalisation in the financial sector in Europe and North America is argued in the academic literature to be the inevitable consequence of the growth of electronic and telemediated forms of delivery of financial services. In the British building society sector, despite some evidence of branch closure as the use of the Internet and telephone call centres in the delivery of financial services has grown, the picture that emerges is of a dynamic branch network that is responding to changing customer demands and new technological possibilities. Face-to-face advice and discussions between customers and trained ‘experts’ remain an important part of the mortgage transaction. In the savings market, where products have become more commodified, telephone call centres and, more recently, the Internet have become more prominent, but institutions still rely heavily on the branch network to deliver services. The authors suggest that, although there have been changes in the relative importance of different distribution channels as sources of business in the financial sector, it is wrong to view these changes in terms of a simple branch-versus-direct dichotomy. A more complex picture is presented, with most institutions adopting a multichannel approach to the delivery of financial services, and electronic forms of delivery of financial services being developed as an additional delivery channel alongside the branch.


Author(s):  
Brent A. R. Hege

AbstractAs dialectical theology rose to prominence in the years following World War I, the new theologians sought to distance themselves from liberalism in a number of ways, an important one being a rejection of Schleiermacher’s methods and conclusions. In reading the history of Weimar-era theology as it has been written in the twentieth century one would be forgiven for assuming that Schleiermacher found no defenders during this time, as liberal theology quietly faded into the twilight. However, a closer examination of this period reveals a different story. The last generation of liberal theologians consistently appealed to Schleiermacher for support and inspiration, perhaps none more so than Georg Wobbermin, whom B. A. Gerrish has called a “captain of the liberal rearguard.” Wobbermin sought to construct a religio-psychological method on the basis of Schleiermacher’s definition of religion and on his “Copernican turn” toward the subject and resolutely defended such a method against the new dialectical theology long after liberal theology’s supposed demise. A consideration of Wobbermin’s appeals to Schleiermacher in his defense of the liberal program reveals a more complex picture of the state of theology in the Weimar period and of Schleiermacher’s legacy in German Protestant thought.


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