h. kakaei

This study aimed to investigate the effect of a health education program on empowering mothers to prevent home accidents among rural children under five years old in Ilam County.

This research was a randomized controlled trial involving 88 mothers with children under five years old attending healthcare houses in Ilam County in 2022-2023 who were randomly assigned to the intervention and control groups. A one-month online educational intervention was implemented for the intervention group using the WhatsApp application, while the control group received no education. Data were collected using a questionnaire assessing the constructs of the health belief model regarding home accidents in children, completed online by the participants at baseline and three months later. Data were analyzed using SPSS 16 software, employing an independent sample t-test and paired sample t-test.

No significant difference was found between the two groups in the mean scores of the health belief model constructs regarding preventing home accidents in the pre-test phase (p>0.05). The results of the independent sample t-test showed a significant increase in the mean scores of health belief model constructs in the intervention group compared to the control group after a three-month follow-up (p<0.05).

Designing interventions based on the health belief model effectively empowers mothers to prevent accidents in rural children under five years old.

The use of plant hormones has been introduced as a simple and suitable strategy to reduce the adverse effect of heavy metals in plants. To investigate the effect of salicylic acid (SA) in reducing lead (Pb) stress in tomato (Lycopersicon esculentum L.), a factorial experiment was conducted based on completely randomized design with three replications in the greenhouse of Razi University. Factors included soil Pb contamination at three levels (0, 150 and 300 mg kg-1 soil as Pb(NO3)2) and SA at three levels (0, 250 and 500 μM). Results showed that the highest proline content (23.4 mmol g-1) and Pb concentration (4.26 mg kg-1) were obtained in 300 mg kg-1 of Pb and 0 μM SA, which shows an increase of 303 and 387%, respectively, compared to the control (without Pb and SA). Also, the highest amount of soluble sugars (0.48 mg kg-1), plant height (43.5 cm), root length (18.3 cm/plant), shoot dry weight (7.48 g/plant), and leaf area (263.1 cm2/plant) were found in the treatment of 500 μM SA and 0 mg kg-1 Pb. In general, the results showed that the application of SA, as a plant hormone, is a simple and convenient method to reduce the adverse effects of Pb stress in tomato.

Particle size distribution is an important parameter in flotation process, which affects the floatability and therefore the flotation kinetics. This study aims to investigate the effects of particle size distribution on flotation kinetics of bituminous coal. For this purpose, a series of batch flotation experiments were conducted in rougher stage, and concentrates were collected in different time periods. Then particle size distribution for each concentrate was determined. Five flotation kinetic models were applied for the modeling of data obtained from the flotation tests using MATLAB (Matrix Laboratory) software. The relationship between flotation rate constant, maximum combustible recovery and particle size were studied. The results show that the maximum flotation combustible recovery and flotation rate are obtained with an intermediate particle size (-250 +106 μm). Results of flotation tests fitted well to all five kinetic models. It is found that the first - order model with rectangular distribution of floatability, provides the best fit to the experimental data obtained from the flotation processes among the tested models.

Employees are often faced with some stressful situations that with their self-concept content, affect their job satisfaction, mental and physical health. Also, religious orientation plays an important role. The aim of this study was to examine the mediating role of religious orientation in relation to the self-concept of job stress.

This is a descriptive, correlational study. The population was female employees in Semnan University of Medical Sciences and Health Services. 150 individuals were selected by simple random sampling method, with ages ranging between 32 to 64 years were selected. The measurement tools of this research were Tennessee Self Concept Scale (TSCS), Intrinsic and Extrinsic Religious Orientation Scale (IERS) and Health and Safety Executive (HSE) Stress Questionnaire. For data analysis, descriptive statistics and multiple regression analysis were used.

Religious orientation can have a mediating role in the relationship between self-concept and job stress. People with religious beliefs, achieve greater self-awareness, which can be helpful in reducing stress.

Spiritual help making sure of receiving divine support in times of need is a suitable way to reduce job stress.