Institution
North Eastern Hill University
Education•Shillong, Meghalaya, India•
About: North Eastern Hill University is a education organization based out in Shillong, Meghalaya, India. It is known for research contribution in the topics: Population & Catalysis. The organization has 2318 authors who have published 4476 publications receiving 48894 citations.
Topics: Population, Catalysis, Ruthenium, Ligand, Aqueous solution
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the authors derived a lower bound for the commutativity degree of a finite group G and studied some of its consequences towards characterizing G. The object of this paper is to derive a lower-bound for Pr(G) and study some of the consequences of the lower bound.
Abstract: The commutativity degree of a finite group G, denoted by Pr(G), is the probability that a randomly chosen pair of elements of G commute. The object of this paper is to derive a lower bound for Pr(G) and study some of its consequences towards characterizing G.
36 citations
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TL;DR: In this article, the authors consider three alternative indices that determine weights given to different constituent variables on the principles different from the PCA and find that these indices are inclusive in nature, caring for the representation of the poorly correlated variables.
Abstract: Construction of (composite) indices by the PCA is very common, but this method has a preference for highly correlated variables to the poorly correlated variables in the data set. However, poor correlation does not entail the marginal importance, since correlation coefficients among the variables depend, apart from their linearity, also on their scatter, presence or absence of outliers, level of evolution of a system and intra-systemic integration among the different constituents of the system. Under-evolved systems often throw up the data with poorly correlated variables. If an index gives only marginal representation to the poorly correlated variables, it is elitist. The PCA index is often elitist, particularly for an under-evolved system.
In this paper we consider three alternative indices that determine weights given to different constituent variables on the principles different from the PCA. Two of the proposed indices, the one that maximizes the sum of absolute correlation coefficient of the index with the constituent variables and the other that maximizes the entropy-like function of the correlation coefficients between the index and the constituent variables are found to be very close to each other. These indices alleviate the representation of poorly correlated variables for some small reduction in the overall explanatory power (vis-a-vis the PCA index). These indices are inclusive in nature, caring for the representation of the poorly correlated variables. They strike a balance between individual representation and overall representation (explanatory power) and may perform better. The third index obtained by maximization of the minimal correlation between the index and the constituent variables cares most for the least correlated variable and in so doing becomes egalitarian in nature.
36 citations
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TL;DR: In this article, Nypa megafossils dominated by fruits are described from Oligocene and Lower Miocene sediments of Assam and Mizoram, respectively, and their origin, past distribution and migration are discussed in the light of recent findings.
36 citations
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TL;DR: Bromodimethylsulfonium bromide has been found to be an efficient catalyst for the addition of a wide variety of amines to electron deficient alkenes at room temperature.
36 citations
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TL;DR: Overall characterization underscores the potential of Novosphingobium in bioremediation of crude oil polluted sites and the estimate of fundamental kinetic parameters, half-saturation constant (Ks) and maximum degradation rates (Vmax) for biodegradation of phenanthrene and fluoranthene.
36 citations
Authors
Showing all 2368 results
Name | H-index | Papers | Citations |
---|---|---|---|
Vivek Sharma | 150 | 3030 | 136228 |
Patrick J. Carroll | 58 | 505 | 13046 |
Majeti Narasimha Vara Prasad | 56 | 227 | 15193 |
Arun Sharma | 55 | 371 | 11364 |
Michael Schmittel | 53 | 387 | 10461 |
Birgitta Bergman | 52 | 187 | 10975 |
Harikesh Bahadur Singh | 46 | 307 | 7372 |
Lal Chand Rai | 40 | 134 | 4513 |
B. Dey | 40 | 354 | 8089 |
Hiriyakkanavar Ila | 36 | 407 | 5633 |
Jürgen-Hinrich Fuhrhop | 35 | 208 | 5130 |
Sreebrata Goswami | 34 | 142 | 3228 |
Gagan B.N. Chainy | 33 | 107 | 4151 |
J.P. Gaur | 31 | 64 | 3957 |
Hiriyakkanavar Junjappa | 30 | 349 | 4102 |