Introduction and Objective. Despite the effectiveness of electroconvulsive therapy (ECT) in treating major depressive disorder (MDD), its cognitive side effects make it less popular. This study investigated the impact of liothyronine on ECT-induced memory deficit in patients with MDD. Methodology. This is a double-blind clinical trial, in which 60 patients with MDD who were referred for ECT were selected. The diagnosis was based on the criteria of DSM-IV-TR. Patients were divided randomly into two groups to receive either liothyronine (50 mcg every morning) or placebo. After the assessment with Wechsler Memory Scale-Revised (WMS-R) before first session of ECT, posttests were repeated again, two months after the completion of ECT. Findings. By controlling the pretest scores, the mean scores of the experimental group were higher than the control group in delayed recall, verbal memory, visual memory, general memory, and attention/concentration scales (P < 0.05). Conclusion. Liothyronine may prevent ECT-induced memory impairment in patients with MDD. This study has been registered in IRCT under IRCT201401122660N2.

Suggestions system is one of the new cooperative management plans, which affects making good decisions, self-confidence and employees occupational approval. The aim of this research is to survey the barriers for establishment of suggestion system. The proposed study designs and distributes a questionnaire among 195 out of 26550 managers who work for educational system in city of Kermanshah, Iran. The primary purpose of this survey is to learn whether lack of accepting any risk on behalf of management team, conflict of interest in management style, lack of belief on suggestions system in an organization are important barriers of executing suggestions system in an organization or not. The results of Freedman test confirm all seven components of the hypothesis. As a result, lack of accepting risk among management team is number one barrier in having suggestion system followed by existing conflict between management style and suggestions system and lack of management's belief to suggestions system, weakness in education for suggestions system and fear in management disruption because of having suggestions system. The other barriers coming in the last priority in terms of their relative importance include lack of management's support to suggestions system and weakness in management position because of accepting suggestions system.

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K-frames were recently introduced by L. Gǎvruta in Hilbert spaces to study atomic systems with respect to bounded linear operator. Also controlled frames have been recently introduced by Balazs, Antoine and Grybos in Hilbert spaces to improve the numerical efficiency of interactive algorithms for inverting the frame operator. In this manuscript, the concept of controlled K-frames will be studied and the stability of Controlled K-frames under compact perturbation will be discussed.

This research aims to prioritize obstacles in the application of the suggestions system from employees view (case study: Kermanshah province ministry of Education), It is of the descriptive in type in which the library and applied study methodologies as well as one group T-test are used and the Freedman test is utilized in order to prioritize factors and the anthropic method is used to prove the ranking which the sample data is the whole employees of the organization and 195 people were chosen through kook ran sampling method who answered the items in the questionnaire. The results show that in prioritizing obstacles in the application of the system of suggestions in cooperative management, the obstacles emanated from employees come first and those of management come second and those oh organization and structure come third and fourth respectively.