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Harvesting and stocking in discrete-time contest competition models with open problems and conjectures
(Palestine Polytechnic University, 2016)
In this survey, we present a class of first and second-order difference equations representing general form of discrete models arising from single-species with contest competition. Then, we consider various harvesting/stocking ...
Advances in periodic difference equations with open problems
(Springer, 2014)
In this paper, we review some recent results on the dynamics of semi-dynamical systems generated by the iteration of a periodic sequence of continuous maps. In particular, we state several open problems focused on the ...
A Global Attractor in Some Discrete Contest Competition Models with Delay under the Effect of Periodic Stocking
(Hindawi, 2013)
We consider discrete models of the form 𝒳ₙ₊₁= 𝒳ₙ𝒇(𝒳ₙ₋₁) + 𝒉ₙ , where 𝒉ₙ is a nonnegative 𝒑-periodic sequence representing stocking in the population, and investigate their dynamics. Under certain conditions on the ...
On the periodic logistic equation
(Elsevier, 2006)
We show that the 𝒑-periodic logistic equation 𝒳ₙ₊₁ = μₙ mod 𝒑𝒳ₙ(1 - 𝒳ₙ) has cycles (periodic solutions) of minimal periods 1; 𝒑; 2𝒑; 3𝒑; …. Then we extend Singer’s theorem to periodic difference equations, and use ...
Effect of pH, ultrasound frequency and power density on the release of calcein from stealth liposomes
(De Gruyter, 2016)
The use of liposomes as carriers for chemotherapeutic agents in combination with ultrasound as a stimulus to control the time and space of the drug release is a promising approach for cancer treatment, as it can reduce the ...
A new characterization of periodic oscillations in periodic difference equations
(Elsevier, 2011-11)
In this paper, we characterize periodic solutions of p-periodic difference equations. We classify the periods into multiples of p and nonmultiples of p. We show that the elements of the set of multiples of p follow the ...
Verbal negation in the Lebanese dialect of Zeitoun, Keserwan
(Institut de recherches et d’études sur les mondes arabes et musulmans (IREMAM), 2019)
The dialect of Zeitoun village in the northern Keserwan district of Lebanon exhibits both the split-morpheme negators mā…š of the southern and highland Levant and the pre-verbal negator mā without the post-positive -š of ...
Muslim Women's Evolving Leadership Roles: A Case Study of Women Leaders in an Immigrant Muslim Community in Post-9/11 America
(Sage, 2017)
Based on three years of ethnographic fieldwork in a multi-ethnic immigrant Muslim congregation in a Midwestern city in the United States, this paper scrutinizes the intricate process through which women uses traditional ...
An Extension of Sharkovsy’s Theorem to Periodic Difference Equations
(Elsevier, 2006)
We present an extension of Sharkovsky’s Theorem and its converse to periodic difference equations. In addition, we provide a simple method for constructing a p-periodic difference equation having an r-periodic geometric ...
On the dot product graph of a commutative ring II
(International Electronic Journal of Algebra, 2020)
In 2015, the second-named author introduced the dot product graph associated to a commutative ring A. Let A be a commutative ring with nonzero identity, 1 ≤ n < ∞ be an integer, and R = A × A × · · · × A (n times). We ...