Deep Eutectic Mn(NO3)2−H2O Binary System as a Safe, Cost-Effective, and Efficient Electrolyte for Supercapacitor Applications

Deep eutectic solvents (DESs) have proved to be an effective substitute for conventional electrolytes for energy storage applications because of their unique properties and ability to adapt them to specific applications. In this regard, this study examines an easy-to-produce, widely available and cheap manganese nitrate concentrated electrolyte that holds DES traits. The electrolyte (i. e., manganese nitrate; (Mn(NO3)2 ⋅ 6H2O with a weight composition of 42 %) revealed its eutectic behaviour by benchmarking the eutectic distance (53 °C), thermal expansion coefficient (3.9×10−4 K), activation energy for conductivity (∼2.45 kJ mol−1), and viscosity (14 kJ mol−1). What's more, it was successfully incorporated into a two-electrode symmetric supercapacitor comprising activated carbon electrodes and demonstrated specific capacitance retention of 93 % (170 F g−1) through 2000 consecutive galvanostatic charge-discharge cycles at 25 and −20 °C

The Effect of Combined Therapy of Spiritual-Cognitive Group Therapy on Death Anxiety in Patients with Cancer

Introduction: The current study aims to examine the effectiveness of combined therapy of spiritual- cognitive group therapy on decreasing the death anxiety of patients with cancer who referred to cancer treatment centers of Kerman in 2012. Methods: To this aim after a clinical interview, 26 patients with cancer, referred to treatment centers, were selected using convenient sampling method. The study participants were randomly divided into two groups of control and experimental, each including 13 patients. Then, all 26 patients were scrutinized by Templar's death anxiety questionnaire. The experimental group participated in eleven 2-hour sessions of spiritual-cognitive group therapy; however, the control group received no intervention therapy. At the end, a post-test was conducted on all individuals in the sample group (26 patients). After collecting the questionnaires, the gathered data was analyzed applying SPSS software along with covariance analysis (ANCOVA). Results: The study results indicated that the combined therapy of spiritual- cognitive group therapy was significantly effective (p≤0/001) in reducing death anxiety of patients with cancer. Conclusion: The combined therapy of spiritual-cognitive group therapy can decrease the death anxiety in patients with cancer

The Effect of Happiness Training on Irrational Beliefs of Female Adolescents under the Surveillance of Welfare Organization.

The aim of the current study was to examine the effectiveness of happiness training and applying Fordyce cognitive-behavioral approach, on irrational beliefs of female adolescents under the Surveillance of Zahedan Welfare Organization. The study followed a pretest-posttest quasi-experimental design with a control group. 24 female adolescents under the Surveillance of Welfare Organization were selected using simple random sampling method and were assigned randomly into an experimental and a control group (each including 12 people). Measurement tool was Jones’ Irrational Beliefs Test (IBT). The experimental group received eight 90-minute sessions of Fordyce happiness training for two months and the control group did not receive such intervention. The results of analysis of covariance indicated a significant reduction in the overall mean of irrational beliefs score. It seems that the Fordyce happiness training was effective in reducing irrational beliefs of female adolescents under the Surveillance of Zahedan Welfare Organization. The subscales of irrational beliefs, including high self-expectations, blame proneness, emotional irresponsibility, anxious over concern, and helplessness for change were all lower  after the training sessions

Analysis of electrochemical noise data in both time and frequency domains to evaluate the effect of ZnO nanopowder addition on the corrosion protection performance of epoxy coatings

AbstractEpoxy–ZnO nanocomposite coatings have been developed for corrosion protection of steel. Structural characterization of the prepared nanocomposites was performed using scanning electron microscopy (SEM). The anti-corrosive properties of the coatings were evaluated by electrochemical noise (EN). On the basis of the EN results in both time and frequency domains, the nanocomposite material with low ZnO concentration (0.1% wt.%) was found to be much superior in corrosion protection when tested in aqueous NaCl electrolyte. Finally, EIS measurements were carried out and the data fitted with suitable equivalent circuit. Resistance parameters obtained by both techniques were found to be in relatively good agreement