660 research outputs found
New Results and Matrix Representation for Daehee and Bernoulli Numbers and Polynomials
In this paper, we derive new matrix representation for Daehee numbers and
polynomials, the lambda-Daehee numbers and polynomials and the twisted Daehee
numbers and polynomials. This helps us to obtain simple and short proofs of
many previous results on Daehee numbers and polynomials. Moreover, we obtained
some new results for Daehee and Bernoulli numbers and polynomials
New Results on Higher-Order Daehee and Bernoulli Numbers and Polynomials
We derive new matrix representation for higher order Daehee numbers and
polynomials, the higher order lambda-Daehee numbers and polynomials and the
twisted lambda-Daehee numbers and polynomials of order k. This helps us to
obtain simple and short proofs of many previous results on higher order Daehee
numbers and polynomials. Moreover, we obtained recurrence relation, explicit
formulas and some new results for these numbers and polynomials. Furthermore,
we investigated the relation between these numbers and polynomials and Stirling
numbers, Norlund and Bernoulli numbers of higher order. The results of this
article gives a generalization of the results derived very recently by
El-Desouky and Mustafa [6]
Acinetobacter: environmental and biotechnological applications
Among microbial communities involved in different ecosystems such as soil, freshwater, wastewater and solid wastes, several strains belonging to the genus of Acinetobacter have been attracting growing interest from medical, environmental and a biotechnological point of view. Bacteria of this genus are known to be involved in biodegradation, leaching and removal of several organic and inorganic man-made hazardous wastes. It is also well known that some of Acinetobacter strains produce important bioproducts. This review summarizes the usefulness and environmental applications of Acinetobacter strains.
(African Journal of Biotechnology: 2003 2(4): 71-75
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