Bishop Heber College

About: Bishop Heber College is a based out in . It is known for research contribution in the topics: Thin film & Band gap. The organization has 548 authors who have published 692 publications receiving 7144 citations.

First Reformulated Zagreb Indices of Some Classes of Graphs

Abstract: A topological index of a graph is a parameter related to the graph; it does not depend on labeling or pictorial representation of the graph. Graph operations plays a vital role to analyze the structure and properties of a large graph which is derived from the smaller graphs. The Zagreb indices are the important topological indices found to have the applications in Quantitative Structure Property Relationship(QSPR) and Quantitative Structure Activity Relationship(QSAR) studies as well. There are various study of different versions of Zagreb indices. One of the most important Zagreb indices is the reformulated Zagreb index which is used in QSPR study. In this paper, we obtain the first reformulated Zagreb indices of some derived graphs such as double graph, extended double graph, thorn graph, subdivision vertex corona graph, subdivision graph and triangle parallel graph. In addition, we compute the first reformulated Zagreb indices of two important transformation graphs such as the generalized transformation graph and generalized Mycielskian graph.

Contrasting Correlation Coefficient with Distance Measure in Interval Valued Intuitionistic Trapezoidal Fuzzy MAGDM Problems

Abstract: In this paper, Multiple Attribute Group Decision Making MAGDM problems in which the data is of the form of Interval Valued Intuitionistic Trapezoidal Fuzzy Numbers IVITzFNs is presented Some operational laws of IVITzFNs are introduced Then some new aggregation operators including interval valued Intuitionistic Trapezoidal Fuzzy Weighted Averaging IVITzFWA operator, interval valued Intuitionistic Trapezoidal Fuzzy Ordered Weighted Averaging IVITzFOWA operator and Interval Intuitionistic Trapezoidal Fuzzy Hybrid Averaging IVITzFHA operator, are proposed and some desirable properties of these operators are studied, such as Commutativity, Idempotency and Monotonicity A new distance function and correlation coefficient are proposed for IVITzFNs which will be utilized for ranking the alternatives in MAGDM problems Finally, numerical illustrations are given to verify the developed approach and to demonstrate its practicality and effectiveness

Persistent Organic Pollutants (Part I): The “Dirty Dozen” – Sources and Adverse Effects

Abstract: Persistent organic pollutants (POPs) are carbon-based pollutants existing in our environment for extended periods of time. POPs are of global concern due to their far-reaching presence in the environment. They are present in the lithosphere (soil), hydrosphere (water), biosphere (living beings), and atmosphere (air). Both natural and anthropogenic forms of POPs are known. POPs can be considered as “forever chemicals” as they are resistant to degradation in the ecosystem via biologically, chemically, and photolytically to varying degrees and as such are persistent in our environment. They have the ability to biomagnify via the food chain and can bioaccumulate in the various organisms in the ecosystem due to their high lipid solubility. They can be transported over long distances by water and wind and are found in many regions where there are no major sources of POPs. The comprehensive pollution of the environment and living organisms by POPs has resulted in acute as well as chronic toxic effects in many living species. Under the leadership of United Nations Environment Programme (UNEP), the Stockholm Convention of Persistent Organic Pollutants was held in 2001. In this treaty, 12 classes of organic chemicals (also referred as the “dirty dozen”) were identified as POPs. In this chapter, the source, structure, general characteristics, and uses of the intentionally produced and unintentionally formed “dirty dozen” will be disclosed. The major adverse effects caused by the “dirty dozen” on human health and the environment will be also summarized.

In silico evaluation of isatin-based derivatives with RNA-dependent RNA polymerase of the novel coronavirus SARS-CoV-2.

Abstract: Isatin (1H-indole-2,3-dione)-containing compounds have been shown to possess several remarkable biological activities. We had previously explored a few isatin-based imidazole derivatives for their ...