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تعداد نتایج: 16827680 فیلتر نتایج به سال:
Let $R$ be a multiplicative hyperring. In this paper, we introduce and study the concept of n-absorbing hyperideal which is a generalization of prime hyperideal. A proper hyperideal $I$ of $R$ is called an $n$-absorbing hyperideal of $R$ if whenever $alpha_1o...oalpha_{n+1} subseteq I$ for $alpha_1,...,alpha_{n+1} in R$, then there are $n$ of the $alpha_i^,$s whose product ...
Aims and Background: Identifying and relieving pain is one of the main responsibilities of nurses in the surgical wards. So in order to move toward higher quality care and to improve the performance of nurses in surgical wards , more information is needed on the current status of pain management in hospitals. Therefore , this study was performed to assess pain management qualification of nurs...
The History of closed mitral valve comissurotomy (CMVC) and its indication is discussed in this article. However many of the patients undergo (PTMC) these days as a new procedure and of course more effective and easier way whenever is indicated, yet, (CMCV) should be considered as a simple, and effective surgery when indicated, especialy in third world countries in which economical, social and ...
Telemedicine is the use of information and communication technologies in order to provide access to medical and health care services whenever a large physical distance exists between patient and the service. Telemedicine is easily accessible for people living in remote regions and people with chronic illnesses who need long time home care. This technology is provided in different services, inc...
It was thought previously that cardiac muscle gap junctions provide low-resistance connections between cells and permit the local-circuit current to flow. Some evidences show that myocardial cells may not require low-resistance connections for successful propagation of the action potential (AP). It seems that some other types of mechanisms must be involved in AP propagation. In this article, we...
This paper studies the vanishing of $Ext$ modules over group rings. Let $R$ be a commutative noetherian ring and $ga$ a group. We provide a criterion under which the vanishing of self extensions of a finitely generated $Rga$-module $M$ forces it to be projective. Using this result, it is shown that $Rga$ satisfies the Auslander-Reiten conjecture, whenever $R$ has finite global dimension and $ga...
In this paper, the new concept of non-autonomous iterated function system is introduced and also shown that non-autonomous iterated function system IFS(f_(1,∞)^0,f_(1,∞)^1) is topologically transitive for the metric space of X whenever the system has average shadowing property and its minimal points on X are dense. Moreover, such a system is topologically transitive, whenever, there is a point ...
we prove that each normal automorphism of the $n$-periodic product of cyclic groups of odd order $rge1003$ is inner, whenever $r$ divides $n$.
this paper presents a discrete-time single-server finite buffer n threshold policy queue with renewal input and discretemarkovian service process. the server terminates service whenever the system becomes empty, and recommencesservice as soon as the number of waiting customers in the queue is n. we obtain the system-length distributionsat pre-arrival and arbitrary epochs using the supplementary...
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