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Increased Trend of Breast Cancer Mortality in Iran
Taghavi, Afsoon,Fazeli, Zeinab,Vahedi, Mohsen,Baghestani, Ahmad Reza,Pourhoseingholi, Asma,Barzegar, Farnoosh,Pourhoseingholi, Mohamad Amin Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.1
Background: Breast cancer is the most commonly diagnosed cancer in women worldwide In Iran, it ranks first among cancers diagnosed in women and is the fifth most common cause of death. The aim of this study was to present the mortality trends from breast cancer for Iranian women during a period of almost a decade, in order to provide update information regarding the likely future. Methods: We analyzed National death Statistic reported by the Iranian Ministry of Health and Medical Education from 1995 to 2004 to generate annual mortality rates/100,000, overall, by age group (<15, 15-49 and ${\geq}50$ years of age) and age standardized rate (ASR). Results: The age standardized mortality rate of breast cancer increased dramatically during these years from 1.40 to 3.52 per 100,000 and its mortality was increasing 151.4% for Iranian women, although it seemed that the rate leveled off from 2002 to 2004. Moreover the increasing rate was higher for those aged between 15-49 compared to age >50 years old. Conclusion: There is an increasing trend for breast cancer mortality in Iran. Thus, health education programs to rectify the lack of women awareness about breast cancer signs and effective screening are urgently needed.
SOME NEW RESULTS ON THE RUDIN-SHAPIRO POLYNOMIALS
Taghavi, M.,Azadi, H.K. Korean Society of Computational and Applied Mathem 2008 Journal of applied mathematics & informatics Vol.26 No.3-4
In this article, we focuss on. sequences of polynomials with {$\pm1$} coefficients constructed by recursive argument that is known as Rudin-Shapiro polynomials. The asymptotic behavior of these polynomials defines as the ratio of their 2q-norm with 2-norm to be dominated by some number depending on q or "the best" by an absolute constant. In this work we first show the conjecture holds for some finite numbers of m and then introduce a technique that give the result for any positive odd integer m whenever it holds for all pervious even numbers.
A CHARACTERIZATION OF ADDITIVE DERIVATIONS ON C<sup>*</sup>-ALGEBRAS
Taghavi, Ali,Akbari, Aboozar The Kangwon-Kyungki Mathematical Society 2018 한국수학논문집 Vol.26 No.2
Let $\mathcal{A}$ be a unital $C^*$-algebra. It is shown that additive map ${\delta}:{\mathcal{A}}{\rightarrow}{\mathcal{A}}$ which satisfies $${\delta}({\mid}x{\mid}x)={\delta}({\mid}x{\mid})x+{\mid}x{\mid}{\delta}(x),\;{\forall}x{{\in}}{\mathcal{A}}_N$$ is a Jordan derivation on $\mathcal{A}$. Here, $\mathcal{A}_N$ is the set of all normal elements in $\mathcal{A}$. Furthermore, if $\mathcal{A}$ is a semiprime $C^*$-algebra then ${\delta}$ is a derivation.
A NOTE ON NONLINEAR SKEW LIE TRIPLE DERIVATION BETWEEN PRIME ⁎-ALGEBRAS
Taghavi, Ali,Nouri, Mojtaba,Darvish, Vahid The Kangwon-Kyungki Mathematical Society 2018 한국수학논문집 Vol.26 No.3
Recently, Li et al proved that ${\Phi}$ which satisfies the following condition on factor von Neumann algebras $${\Phi}([[A,B]_*,C]_*)=[[{\Phi}(A),B]_*,C]_*+[[A,{\Phi}(B)]_*,C]_*+[[A,B]_*,{\Phi}(C)]_*$$ where $[A,B]_*=AB-BA^*$ for all $A,B{\in}{\mathcal{A}}$, is additive ${\ast}-derivation$. In this short note we show the additivity of ${\Phi}$ which satisfies the above condition on prime ${\ast}-algebras$.
Review of Ancient Wisdom of Qanat, and Suggestions for Future Water Management
Taghavi-Jeloudar, Mohsen,Han, Mooyoung,Davoudi, Mohammad,Kim, Mikyeong Korean Society of Environmental Engineers 2013 Environmental Engineering Research Vol.17 No.1
Arid areas have a significant problem with water supply due to climate change and high water demand. More than 3,000 years ago, Persians started constructing elaborate tunnel systems called Qanat for extracting groundwater for agriculture and domestic usages in arid and semi-arid areas and dry deserts. In this paper, it has been demonstrated that ancient methods of water management, such as the Qanat system, could provide a good example of human wisdom to battle with water scarcity in a sustainable manner. The purpose of this paper is twofold: Review of old wisdom of Qanat-to review the history of this ancient wisdom from the beginning until now and study the Qanat condition at the present time and to explore why (notwithstanding that there are significant advantages to the Qanat system), it will no longer be used; and suggestions for future water management-to suggest a number of new methods based on new materials and technology to refine and protect Qanats. With these new suggestions it could be possible to refine and reclaim this method of extracting water in arid areas. Also, a new multi-purpose water management model has been introduced based on rainwater infiltration management over the Qanat system as the model can be applied either in dry or wet cities to solve current urban water problems.
The Effect of Acupuncture on Relieving Pain after Inguinal Surgeries
Taghavi, Rahim,Tabasi, Kamyar Tavakoli,Mogharabian, Nasser,Asadpour, Akram,Golchian, Amir,Mohamadi, Shabnam,Kabiri, Azade Ataran The Korean Pain Society 2013 The Korean Journal of Pain Vol.26 No.1
Background: Postoperative pain is one of the most prevalent and bothersome issues found in the surgical department. Nowadays, there are various methods of acupuncture used for relieving pain without the complications found in some routine postoperative analgesics. These methods could be especially useful for high risk patients prone to complications from analgesics, such as transplantation recipients. The aim of this study was to evaluate the efficacy of electro-acupuncture on postoperative pain control after inguinal surgeries. Methods: Ninety male patients, who were referred to our department with indications of inguinal surgery, were included in the study and randomly divided into two groups, such as acupuncture and control. We used electro-acupuncture for the acupuncture group and no actual acupuncture (but placed needle electrodes similar to the acupuncture group) for the control group. Postoperative pain was quantified by a blind observer in both groups using a visual analogue scale (VAS) standard score before being compared. Results: Pain intensity and analgesic use were significantly higher in the control group (P < 0.05). In the acupuncture group, the VAS pain scores were significantly lower than the control group at 0.5, 1 and 2 hours post operation. When the opioid related side effects were compared for each group, the results showed that the number of subjects who experienced dizziness in the acupuncture group was significantly lower than the control group (P < 0.05). Conclusions: Acupuncture in patients, after inguinal surgery, can reduce the need of analgesics, which also directly reduces the complications that may occur when analgesics are used in relieving pain postoperatively.
THE NORM RATIO OF THE POLYNOMIALS WITH COEFFICIENTS AS BINARY SEQUENCE
Taghavi, M. 한국전산응용수학회 2003 Journal of applied mathematics & informatics Vol.13 No.1
Given a positive integer q, the ratio of the 2q-norm of a polynomial which its coefficients form a binary sequence and its 2-norm arose from telecommunication engineering consists of finding any type of such polynomials haying the ratio “small” In this paper we consider some special types of these polynomials, discuss the sharpest possible upper bound, and prove a result for the ratio.
AN EXTREMAL PROBLEM APPLIED TO THE RUDIN-SHAPIRO POLYNOMIALS
Taghavi, M. 한국전산응용수학회 1998 Journal of applied mathematics & informatics Vol.5 No.1
Given a Unimodular polynomial P of degree N$\geq$1, the exteremal problem for ${\gamma}$ =max{|P(eit)|:0 $\leq$t$\leq$2$\pi$} satisfies ${\gamma}$$\leq$C{{{{ SQRT { N+1} where C is a universal constant. Here we show that C < 2+{{{{ whenever N is fixed and P has the coefficients of a Rudin-Shapiro polynomial.
ADDITIVE MAPPINGS ON OPERATOR ALGEBRAS PRESERVING SQUARE ABSOLUTE VALUES
TAGHAVI, A. 호남수학회 2001 한국수학학술지 Vol.23 No.1
Let B(H) and B(K) denote the algebras of all bounded linear operators on Hilbert spaces H and K, respectively. We show that if φ:B(H)→B(K) is an additive mapping satisfying φ(│A│^2)=│φ(A)│^2 for every A∈B(H), then there exists a mapping ψdefined by ψ(A)=φ(I)φ(A), ∀A∈B(H) such that ψis the sum of two ^*-homomorphisms one of which C-linear and the othere C-antilinear. We will also study some conditions implying the injective and rank-preserving of ψ.