مجله طب نظامی
سال بیست و ششم شماره 2 (پیاپی 126، خرداد و تیر 1403)

Emotion regulation is an important and determining factor in psychological well-being and effective behavior of people, which plays an essential role in adapting to stressful life events. People who experience emotion dysregulation may show symptoms such as impulsive behaviors, severe anxiety, aggression, and problems with metacognition. This study aims to investigate the effectiveness of high-definition transcranial direct current stimulation (HD-tDCS) in the dorsolateral prefrontal cortex (DLPFC) of the brain in improving emotion dysregulation and the speed of brain information processing. This study is pre-post-test research. In this study, 20 healthy participants (male, right-handed) were used. The participants were randomly assigned to two anodal stimulation groups and sham (control) groups. By completing the ERQ and DTS questionnaires, as well as performing the Paced Auditory Serial Addition Test (PASAT) before and after electrical stimulation of the brain by the HD-tDCS method in the L-DLPFC area, this study was followed up and carried out. After the intervention (stimulation) in the pre-post test comparison between the stimulation group and the control group, there was a difference in terms of evaluation variables, suppression, being absorbed by negative emotions, regulating efforts to relieve distress, the number of correct answers in the PASAT test and the time to answer the PASAT test. There was significance (P<0.05). This shows the effectiveness of the intervention (anodal stimulation) on these components between the stimulation and control groups. However, there was no significant difference between the stimulation and control groups in terms of emotional distress tolerance, subjective estimation of distress, and the number of incorrect answers in the PASAT test (P>0.05). Also, in the comparison of the pre-post test, time was not recognized as a significant factor in any of the research components. High-definition transcranial direct current stimulation (HD-tDCS) in the left dorsolateral prefrontal cortex (DLPFC) improves some components of emotion dysregulation and also improves brain information processing speed.

Psychological and family problems are aggravated when one of the family members faces crises in life; Among these crises is the presence of a selfless person in the family. The present study was conducted with the aim of the effect of teaching communication skills with emphasis on the teachings of Islam on positive psychological states and emotional divorce of wives of self-sacrificing families. The research method was semi-experimental with a pre-test and post-test design, a control group, and a statistical population consisting of wives of self-sacrificing families in Zahedan city in 2022. According to the entry criteria, 30 people were selected by direct sampling and randomly assigned to experimental and control groups. Research tools included questionnaires of positive psychological states (Rajaei et al., 2013) and emotional divorce (Gutman, 1998). The communication skills training program with an emphasis on the teachings of Islam was presented to the experimental group twice a week during 8 sessions of 1.5 hours, and the control group did not receive the training. Data were analyzed using chi-square tests and analysis of covariance in SPSS26 statistical software. The results showed no significant difference between the two groups in terms of age, education, and employment demographic variables (P<0.05). The results of covariance analysis showed that teaching communication skills with an emphasis on the teachings of Islam increased the scores of positive psychological states (P<0.001, F=73.804) and decreased the emotional divorce scores (P<0.001, F=15.166). Wives of self-sacrificing families have been effective. Effective communication is essential for maintaining healthy relationships and when combined with Islamic teachings, it can foster greater understanding, compassion, and respect among family members. Therefore, teaching communication skills with an emphasis on the teachings of Islam has the potential to enhance positive psychological states and reduce emotional divorce among wives of self-sacrificing families.

Veterans are one of the sections of society that suffer various injuries in different dimensions of life due to physical problems, therefore their quality of life is affected more than any other factor. Therefore, the present research was conducted to investigate the model of predicting the quality of life of veterans based on schema modes, moral injury, and existential anxiety. The current research is descriptive and correlational type. The statistical population studied included all the veterans covered by Shahid Foundation of Isfahan, and 320 veterans were selected from that. Quality of life questionnaire, schema modes, questionnaire, moral injury questionnaire, and existential anxiety questionnaire were used to measure research variables. Finally, the data were analized in SPSS software version 24, Lisrel version 11, and Amos version 26. The model for predicting the quality of life of veterans based on schema modes, moral injury, and existential anxiety is appropriate (P>0.01). Therefore, based on the results, it can be stated that the most important effective, and significant factor that has reduced the quality of life of the veterans in the 8 years of the holy defense is existential anxiety. According to the results of the research, it can be inferred that by examining and developing treatment packages to reduce existential anxiety, it is possible to help improve the quality of life of veterans.

Considering to the new conditions compared to the traditional concept, military training courses should be designed in such a way that becomes efficient, effective, and works properly and practical. In contrast, their physical training develops from other types of aspects such as metabolic and hormonal. Resistance exercise (RE) with different types of military and training equipments, such as gas masks, and training masks that performs with a low intensity, results in different physiological responses and effects. Therefore, the main goal of this research was to study the effect of two types of military and training masks during resistance sports exercise on lactate and growth hormone responses in the AJA simulated training program.

In this study, the case-crossover method was used. Twelve military personnel trained (with an average age of 27.75 ± 6.45 years and a body mass index of 25.41 ± 3.43 kg/m2) were randomly chosen and examined in three different physiological training methods traditional (control) training (Intensity: 1RM 75%), training with military and training masks (1RM 30%). The RE consisted of performing 4 squat movements with a total of 65 repetitions. Blood samples were collected before and immediately after the workout. The data were analyzed using the two-way analysis of variance method with repeated measurements, with SPSS software (version 23) at a significance level of P<0.05.

All three types of exercise caused a significant increase in lactate (P<0.05) and no increase in growth hormone except the traditional method immediately after the exercise, but there was a significant difference between the groups in the amount of lactate, but not in the amount of growth hormone (P<0.05).

Studies have shown that both methods of resistance sports activity with a military mask and exercise such as routine resistance activity can cause a significant increase in blood lactate after exercise. This research confirms the effectiveness of this type of training on lactate increase response and can meet the goals expected from high-intensity training.

Given the significant relationship between muscle cross-sectional area (CSA) and muscle strength, the primary objective for athletes involved in resistance training is to enhance muscle mass and strength. Proper manipulation of training variables such as intensity, volume, frequency, exercise selection, rest interval, and tempo are essential for maximizing exercise-induced muscle hypertrophy. The present study examined the effects of weekly variations in resistance training on muscle thickness (MT) and strength adaptations in young men. This research included 30 participants (age: 21.37±1.37 years, height: 174.48±3.34 cm, weight: 72.13±3.45 kg). They were randomly assigned into varying training groups whose training routine changed every week (VAR) or traditional training groups that did not change (TRAD) for ten weeks. For the VAR group training weeks were labeled as adaptation, metabolic stress, mechanical tension, muscle damage, and de-load week 2 cycles of this change occurred through the training intervention for them, but the TRAD group training routine did not change through the study. Both the TRAD and VAR groups showed significant increases in the MT of the biceps brachii muscle (BB) (VAR: P=0.001; TRAD: P=0.007), significant differences were observed between groups (P=0.012). Vastus lateralis (VL) MT increased significantly in both groups (P=0.001), no significant difference was observed between the two groups (P>0.05). Among the groups, lean body mass (LBM) increased significantly (P=0.001), TRAD group showed a significant decrease in body fat (P=0.49), there was no significant change in BMI of both groups (P>0.05). Both groups showed significant increase in bench press and back squat 1-RM strength test (P=0.001). Back squat showed a trivial non-significant difference between the groups (P=0.072). The results showed that changing resistance training methods weekly was more effective than traditional resistance training for biceps hypertrophy. Nevertheless, the effects of VAR and TRAD exercises are similar in the case of the latissimus dorsi muscle.

Triage is a dynamic process of the patient care chain that is used to determine priority for treatment, evacuation, and decontamination. The preparation of military nurses is essential for the isolation and triage of chemical casualties. The purpose of this study is to determine the impact of the triage training of chemical casualties using a multimedia method on the attitude of nurses of a selected military hospital.

In this semi-experimental study, 54 nurses working in a military hospital in Mashhad, Iran in 2022 were selected and randomly allocated to intervention and control groups. The data collection tool included two sections of demographic information and a researcher-made questionnaire. Nurses' attitudes were measured in three stages before, after, and one month after the intervention. Then the data were analyzed using SPSS software ver.21 and with independent t-tests and analysis of variance of repeated measures.

There was no statistically significant difference in the average attitude score between the two groups before the intervention (P>0.180) but, a significant increase in the mean scores of nurses' attitude in the test group was observed after the intervention (P=0.001) and one month later (P=0.009), and the effect size of the attitude level was estimated in the medium range.

The results show the effectiveness of multimedia training on improving nurses' attitudes in the triage of chemical casualties; Therefore, it is suggested to use multimedia training in continuous training to improve the knowledge and attitude of nurses in response to disasters, especially chemical, microbial and nuclear events.

The ability of cockroaches to transmit pathogenic agents to food makes them a threat to the country's food security in terms of use in war and biological terror. In this research, the identification of cockroaches (Blattodea), their geographic distribution, and establishment potential in date warehouses of six important date-growing provinces of Iran, including Kerman, Fars, Khuzestan, Sistan and Baluchistan, Bushehr, and Hormozgan, were carried out to their risk predict.

The statistical method of factor analysis was used to investigate the variance between several dependent variables based on their description in terms of a few latent variables (factors) effective on the type of population distribution. The cluster analysis was performed using a hierarchical method and its accuracy was evaluated using linear detection techniques and a generalization of Fisher's linear discriminator.

Three species of cockroaches, including the American cockroach Periplaneta americana, the eastern cockroach Blatta orientalis, and the German cockroach Blattella germanica, are active in Iran's date-producing areas. The highest distribution of these cockroaches was in (Kerman, Fars, and Bushehr), (Kerman and Sistan and Baluchistan), (Khuzestan and Sistan and Baluchistan), (Khuzestan and Sistan and Baluchistan), Bushehr and Fars, respectively. The highest relative establishment rate was found in the provinces of Sistan and Baluchistan, Hormozgan, and Khuzestan. The largest unexploited habitat niche was in Hormozgan province, related to the German cockroach. The unanticipated outbreak chance of cockroaches in the warehouses of that province increases with the index of the unexploited habitat niche in that province.

Early detection to prevent the spread of the biological agent is a passive defense against the biological threat. The results of this research are essential in analyzing the risk of cockroaches and determining the hazards caused by them.