The effect of tensor interaction in splitting the energy levels of relativistic systems

In this paper we solve analytically Dirac equation for Eckart plus Hulthen potentials with Coulomb-like and Yukawa-like tensor interaction in the presence of Spin and Pseudo-spin Symmetry for any k number. The Parametric Nikiforov-Uvarov method is used to obtain the energy Eigen-values and wave functions. We also discuss the energy Eigen-values and the Dirac spinors for the Eckart plus Hulthen potentials for the spin and pseudo-spin symmetry with PNU method. To show the accuracy of the present model, some numerical results are shown in both pseudo-spin and spin symmetry limits.Comment: 19 Pages, 13 Figures,6 Tabl

A Report on Results of a Qualitative Study on the Factors affecting the Implementation of Clinical Back Pain Guide

Introduction: Today, the use of clinical guidelines is increasing. Unfortunately, their use in therapeutic clinics is facing barriers.   The purpose of this study is to investigate the barriers to the use of clinical guidelines to try to resolve them. Methods and Materials: Qualitative study method was used to study the barriers of using clinical guidelines. 15 physiotherapists from the private and public centers of Tehran participated in the study. In one interview, all of their comments were recorded in relation to the clinical management of back pain. Results: After interviewing each other, their views were summarized and eventually classified into five groups. Conclusions: Despite the positive attitude of interviewed people towards using clinical guidelines, the results showed that there are significant barriers in this regard. Some of the most important barriers are: Content validity of the guide , Individual attitudes , Authorities influencing the implementation process , Financial factors and Publishing and implementation strategyKeyword : Low Back Pain Guideline, Guideline Implementation, Impliments Barrier

Relativistic solution of Eckart plus Hulthen potentials in the presence of spin and pseudospin symmetry

In this paper Dirac equation has been solved approximately for Eckart plus Hulthen potentials with spin symmetry and pseudospin symmetry for k≠0. The formula method has been used to obtain the energy Eigen-values and wave functions. The energy Eigen-values and wave functions have also been discussed for the special case of modified Eckart plus Hulthen potentials for the spin and pseudospin symmetry with formula method. To show the accuracy of the present model, some numerical values of the energy levels have been shown

Genetic Improvement of Tropical and Subtropical Fruit Trees via Biolistic Methods

Biolistic is a special high-performance method for direct delivery of foreign DNA, RNA, or protein into plant cells. This method has less physiological risk on plant cell since there is no need for microbial intermediaries (Agrobacterium strains) and requires less additional DNA. Moreover, it can adapt for both monocotyledon and dicotyledonous plants. Recently, this method has also been successfully used to plant genome editing. Therefore, in this chapter, we discuss the application of this method for genetic improvement of some commercially important of tropical and subtropical fruit trees including banana, date palm, citrus, mango, olive, and pineapple. Also, we explain the details of biolistic protocols used for transient and stable gene expression in these fruit trees

Optimal placement of wind generation units in order to increase revenues and reduce the imposed costs in the distribution system considering uncertainty

Recent advances in the field of new energies such as wind turbines, solar power plants, fuel cells, micro-turbines, etc., and also the great benefits of these power plants for the power network, attract the attention of distribution companies towards them. As, today, many distribution companies are examining options for changing the distribution network structure in order to exploit new energies. In the meantime, wind energy is one of the most widely used types of distributed generation in the power network. In addition, wind power generation has the most changes to other types of renewable energy. Distribution network planning is one of the major concerns of system designers, especially when wind generation units by their random and variable nature are in system development. Since the proper placement of wind units in the network plays an essential role in improving the performance of the distribution network, providing a comprehensive and appropriate solution for placement of these units in the network is important. In this paper, a method has been presented that by considering the uncertainty in generation and consumption and the network constraints, the placement of wind units in the network is done with the aim of increasing revenues and reducing the imposed costs in the distribution system, taking into account the uncertainity. The algorithm used in this paper is a genetic algorithm with improved operators

Hellenic and Hellenistic Origins in the Aesthetics of Pseudo-Dionysius

Text This article studies the Hellenic and Hellenistic sources of Pseudo-Dionysius on Beautiful, and its purpose is to clarify the extent of the influence of the philosophy of Plato, Aristotle, Plotinus and Proclus on aesthetics in the thought system of Dionysius. This purpose is pursued through a descriptive-comparative-analytical method and The method of collecting information is also library and documentary. The result obtained from this study shows the complete predominance of Hellenic and Hellenistic aesthetics on the thinking of this medieval thinker; Although it has used them in a new structure. Among the influences of these philosophers on Dionysius’s aesthetics can be mentioned; The Transcendent Beautiful, the difference between Beautiful and beauty, Beautiful as being cause and the ultimate cause of everything, the way and types of movement in the arc of ascent and descent, the relationship of the One with Good and Beautiful, the unity of Beautiful and being beautiful in the order of divine nature, the interplay of light and Beautiful, the role of love as a factor of connection and movement towards Beautiful, belief in beauty in the essence of matter, entanglement of light and beauty in Hierarchical system of descending arc

The comparison of the effects of both propranolol and transcutaneous electrical nerve stimulation in prevention of migraine headache

زمینه و هدف: سردرد میگرنی یک بیماری شایع با مبنای فامیلی می باشد و شیوع آن بر حسب جنس، سن و نژاد متفاوت است. درمان آن شامل درمان حمله حاد سردرد و درمان پیشگیری جهت جلوگیری از بروز حملات سردرد می باشد. انواع مختلف داروها از جمله بتابلوکرها که رایج ترین آنها پروپرانولول است در پیشگیری از حملات میگرن بکار رفته است. همچنین از درمان های غیر دارویی نظیر TENS (Transcutaneos Electerical Nerve Stimulation) در درمان حمله حاد سردردهای میگرنی و نیز درد های مزمن استفاده می شود. هدف از این بررسی، مقایسه اثر پروپرانولول و TENS در پیشگیری از حملات میگرنی بوده است. روش بررسی: در یک کارآزمایی بالینی تعداد 60 بیمار مبتلا به سردرد میگرنی که میگرن آنها بر اساس مقیاس IHS (International Headache Society) توسط متخصصین نورولوژی تأیید گردید و دارای اندیکاسیون درمان پیشگیری از حملات سردرد میگرنی بودند با روش غیر احتمالی انتخاب و بعد به صورت تصادفی در دو گروه 30 نفری تحت درمان با TENS به مدت ده جلسه به صورت روزانه یک جلسه 15 دقیقه ای و پرویرانولول به میزان 40 میلی گرم روزانه به مدت 6 ماه قرار گرفتند. نتایج از نظر شدت، مدت و تعداد حملات قبل از شروع درمان، بعد از 3 و 6 ماه جمع آوری و با استفاده از آزمون آماری مجذور کا تجزیه و تحلیل گردید. یافته ها: پس از 3 ماه درمان 90 درصد بیمارانی که تحت درمان با TENS قرار گرفتند هیچگونه حمله سردردی نداشتند در حالی که در گروه تحت درمان با پروپرانولول 40 درصد بیماران بدون حمله سردرد بودند (001/0

Improved genetic algorithms by means of fuzzy crossover operators for revenue management in airlines

Abstract: Revenue Management is an economic policy that increases the earned profit by adjusting the service demand and inventory. Revenue Management in airlines correlates with inventory control and price levels in different fare classes. We focus on pricing and seat allocation problems in airlines by introducing a constrained optimization problem in Binary Integer Programming (BIP) formulation. Two BIP problems are represented. Moreover, some improved Genetic Algorithms (GAs) approaches are used to solve these problems. We introduce new crossover operators that assign a Fuzzy Membership Function to each parent in GAs. We achieve better outputs with new methods that take lower calculation times and earn higher profits. Three different test problems in different scales are selected to evaluate the effectiveness of each algorithm. This paper defines new crossover operators that help to reach better solutions that take lower calculation times and more earned profits

A New Approach for the Implementation of Binary Matrices Using SLP Applications

In this paper, we propose a method for implementing binary matrices with low-cost XOR. First, using a random-iterative method, we obtain a list S from a binary matrix A. Then, based on the list S, we construct a binary matrix B. Next, we find a relation between the implementations of A and B. In other words, using the implementation of the matrix B, we get a low-cost implementation for the matrix A. Also, we show that the implementation of an MDS matrix M is associated with the form of the binary matrix used to construct the binary form of M. In addition, we propose a heuristics algorithm to implement MDS matrices. The best result of this paper is the implementation of a 8 × 8 involutory MDS matrix over 8-bit words with 408 XOR gates. The Paar algorithm is used as an SLP application to obtain implementations of this paper