On fractional Langevin equation involving two fractional orders in different intervals

In this paper, we study a nonlinear Langevin equation involving two fractional orders  α ∈ (0; 1] and β ∈ (1; 2] with initial conditions. By means of an interesting fixed point theorem, we establish sufficient conditions for the existence and uniqueness of solutions for the fractional equations. Some illustrative numerical examples are also discussed.&nbsp

How Does the First Molar Root Location Affect the Critical Stress Pattern in the Periodontium? A Finite Element Analysis

Statement of the Problem: The first molar root location plays a pivotal role in neutralization of forces applied to the teeth to prevent injury.Purpose: This study aimed to assess the effect of maxillary and mandibular first molar root location on biomechanical behavior of the periodontium under vertical and oblique loadings.Materials and Method: In this three-dimensional (3D) finite element analysis (FEA), the maxillary and mandibular first molars and their periodontium were modeled. The Young’s modulus and the Poisson’s ratio for the enamel, dentin, dental pulp, periodontal ligament (PDL), and cortical and cancellous bones were adopted from previous studies. The changes in maximum von Misses stress (MVMS) values of each component were analyzed.Results: The MVMS values were the highest in the enamel followed by dentin, cortical bone, cancellous bone, and PDL. The maxillary and mandibular first molars with different root locations and their periodontium showed different biomechanical behaviors under the applied loads.Conclusion: An interesting finding was that the stress concentration point in the path of load degeneration changed from the cervical third in dentin to the apical third in the cancellous bone, which can greatly help in detection of susceptible areas over time

Compiling Electronic Customer Relationship Management (E-CRM) Strategy with Approach to Balanced Scorecard (BSC) at the Level of MASKAN BANK

Survival of any market requires accepting its necessities and demands. In the market of financial services, banks have online offers and web-base services. Some viewpoints of E-CRM consider a combination of the three factors: people, process, and technology effective. CRM and E-CRM have been categorized in three groups: operational, analytical, and interactive .This research has been done in the second half of 2012 at Maskan Bank branches in Iran, and random sampling has been used for sampling method ,and questionnaires were distributed among the two statistical population of bank employees and bank customers and after validity and reliability confirmation of the research and proper tests  to insure absence of unacceptable errors, Pearson and regression tests (t-value) were used to find the primary and secondary equation of the research. Contrary to initial assumption of the researcher, connection of some factors like, continuous improvement of electronic services, increase of exchanges speeding up of processes, and cost reduction of online exchanges were ineffective and were deleted from the research model. Then balanced score cards were designed for each aspect and operational methods were suggested and at the end the strategy plan has been designed and sketched

Compiling Electronic Customer Relationship Management (E-CRM) Strategy with Approach to Balanced Scorecard (BSC) at the Level of MASKAN BANK

Survival of any market requires accepting its necessities and demands. In the market of financial services, banks have online offers and web-base services. Some viewpoints of E-CRM consider a combination of the three factors: people, process, and technology effective. CRM and E-CRM have been categorized in three groups: operational, analytical, and interactive .This research has been done in the second half of 2012 at Maskan Bank branches in Iran, and random sampling has been used for sampling method ,and questionnaires were distributed among the two statistical population of bank employees and bank customers and after validity and reliability confirmation of the research and proper tests  to insure absence of unacceptable errors, Pearson and regression tests (t-value) were used to find the primary and secondary equation of the research. Contrary to initial assumption of the researcher, connection of some factors like, continuous improvement of electronic services, increase of exchanges speeding up of processes, and cost reduction of online exchanges were ineffective and were deleted from the research model. Then balanced score cards were designed for each aspect and operational methods were suggested and at the end the strategy plan has been designed and sketched