Predicting Marital Conflicts in Couples Based on A Systemic Approach Mediated by Personality Traits

AbstractIntroduction: Marital conflicts are among the main factors that threaten marital relations and contribute to conflicts and divorces in Iranian society. The present study has been carried out in order to predict marital conflicts in couples based on a systemic approach mediated by personality traits in the cities of Tehran and Qom.Methods: The research method was descriptive-correlational. The statistical population consisted of troubled/struggling couples in Tehran and Qom. The sample consisted of 540 men and women with marital conflict selected by convenience sampling. The research instruments included Neuroticism, Extraversion, Openness, Agreeableness, and Conscientiousness, (NEO) Five-Factor Inventory (NEO-FFI), Marital Conflict Questionnaire (MCQ), and the Family Assessment Device (FAD). Data were analyzed by Pearson correlation method and structural equation modeling using SPSS version 22.0 and LISREL version 8.0 software.Results: Results revealed that the hypothetical model fit the measurement model (CFI = 0.97; IFI = 0.96; RMSEA = 0.088). In addition, the systemic approach components mediated by personality traits were able to explain marital conflicts (P = 0.001). These components indirectly influenced marital conflicts through personality traits (β = -0.38, P = 0.005).Conclusions: Overall, the findings verified the marital conflict model based on a systemic approach mediated by the personality traits

Prediction of Marital Conflicts Based on a Systems Approach with the Mediating Role of Attachment Styles

Background: Attachment style is a major variable in the creation and description of marital problems and has received greater attention in recent years. The traits of secure attachment include constructive emotional interactions and intimate marital relationships. The present study aimed to predict marital conflicts using a problem-centered systems approach with the mediating role of attachment styles among conflicting couples. Methods: In this descriptive correlational study, the statistical population in this study was the total number of conflicted couples in Tehran and Qom in 2020. The sample included 540 men and women with marital conflict selected by convenience sampling. The research instruments included the Experience in Close Relationship Scale (ECR-S), the Marital Conflict Questionnaire (MCQ), and the Family Assessment Device (FAD). Data were analyzed by Pearson correlation method and structural equation modeling using SPSS version 22.0 and LISREL version 8.0 software. Results: The assessment of the hypothetical model of the research indicated that it was a good fit with the measurement model (CFI>0.90; IFI>0.90; RMSE>0.08). The results demonstrated that the components of the systems approach with the mediating role of attachment styles could explain marital conflicts (P<0.001). These components had an indirect relationship with marital conflicts through attachment styles (β= -0.27, P= 0.01). Conclusion: Based on the results, the proposed model had a good fit. Overall, the findings verified the marital conflict model based on a systemic approach mediated by attachment styles

The relationship between body mass index and preeclampsia: A systematic review and meta-analysis

Background: One of the causes of maternal and fetal mortality and morbidity is pregnancy-induced hypertension, the most common form of which is preeclampsia that causes many complications for mother and fetus. Objective: The aim of this systematic review and meta-analysis was to determine the relationship between body mass index (BMI) and preeclampsia in Iran. Materials and Methods: Using valid keywords in the SID database, PubMed, Scopus, data obtained from all the articles, which were reviewed in Iran between 2000 and 2016, were combined using the meta-analysis method (random-effects model) and analyzed using STATA version 11.1. Results: A total number of 5,946 samples were enrolled in 16 studies with the mean BMI values of 25.13, 27.42, and 26.33 kg /m2 in the healthy, mild, and severe preeclamptic groups, respectively. Conclusion: The results of this study revealed that there is a significant relationship between BMI and the risk of preeclampsia, so it can be said that BMI may be one of the ways to diagnose preeclampsia

Prevalence of Anaerobic Bacteria (P.gingivalis) as Major Microbial Agent in the Incidence Periodontal Diseases by Meta-analysis

Statement of the Problem: Periodontal diseases are complex oral diseases characterized by bacterial-induced inflammatory destruction of tooth-supporting tissues. Porphyromonas gingivalis (P. gingivalis) is a common gram-negative anaerobic oral bacteria strongly associated with periodontal disease. Purpose: The present study was conducted to estimate prevalence of P. gingivalis in patients with periodontal diseases by using meta-analysis method. Martials and Method: Different databases including PubMed, EmBase, Scopus, the Institute for Scientific Information (ISI) Web of Science, and the Cochrane Library were searched to identify original English-language studies addressing prevalence of P. gingivalis in periodontal diseases up to December 2014. The random effects model was applied in the meta-analysis and the heterogeneity between studies was assessed using a Cochran test and the I2 index. Funnel plots and Egger test were used to examine publication bias. Statistical analyses were performed using STATA version 12. Results: Forty-two eligible studies published during 1993- 2016 were selected for meta-analysis. Considering all the included studies, the total sample size was 5,884 individuals containing 2,576 healthy people with a mean age of 37.21±7.45 years and 3,308 periodontal patients with a mean age of 44.16±8.35 years. Overall, the prevalence of P. gingivalis was 78% [95% CI: 74-81] in periodontal diseases group and 34% [95% CI: 26-41] in healthy individuals. There was a significantly higher prevalence of P.gingivalis in individuals with periodontal diseases compared to healthy subjects [78% versus 34%, respectively]. Conclusion: This study indicates that P. gingivalis is highly present in subjects with periodontal diseases and it also appears in periodontally healthy people, although to a lesser extent. Thus, the presence of P. gingivalis increases the chance of periodontal disease and it can be considered as a main potential risk factor

SQUEEZE FILM DAMPER EFFECT ON VIBRATION OF AN UNBALANCED FLEXIBLE ROTOR USING HARMONIC BALANCE METHOD

In this paper, an effective tool based on harmonic balance method to assess the forced response of these systems under parametric changes is developed. A flexible rotor with multiple masses supported on a squeeze film damper at one end is investigated and modeled using finite element method. The forced response of this asymmetrically supported system is calculated using the harmonic balance method with a predictor-corrector procedure by changing unidirectional loads, stiffness of centering spring of the damper and the gyroscopic effects of the disks. It is observed that under large unbalance forces, jump phenomenon occurs due to the nonlinear forces of SFD which indicates the presence of multiple harmonics within the response of the SFD operating at high eccentricity ratios and shows the insensitivity of the damper to surrounding gyroscopic variation

New data on the digger wasps fauna of families Pemphredonidae, Psenidae and Philanthidae (Hymenoptera: Apoidea) in Iran

The digger wasps fauna (Hymenoptera: Apoidea) of Fars province in southern Iran was partly investigated. Members of three families: Pemphredonidae (5 species of 3 genera), Psenidae (3 species of 2 genera) and Philanthidae (2 species of 2 genera) were collected and documented. The following eight species: Diodontus brevilabris de Beaumont, 1967, D. crassicornis Gribodo, 1894, D. insidiosus Spooner, 1938, Passaloecus corniger Shuckard, 1837, Pemphredon inornata Say, 1824, Mimesa punctipleuris (Gussakovskij, 1937), Psenulus laevigatus (Schenck, 1857) and Cerceris spinifera haladai K. Schmidt, 2000, are new to the Iranian wasp fauna. In addition, two species: Psenulus schencki (Tournier, 1889) and Philanthus variegatus Spinola, 1839, are new records for Fars province. For each species, we include available distributional data as well as comments on its taxonomy and geographical distribution

Review of Iranian Chalcididae (Hymenoptera, Chalcidoidea) with nomenclatural notes

International audienceThe current paper presents new data on the nomenclature and distribution of Chalcididae (Hymenoptera, Chalcidoidea) collected in various regions of Iran. The following new synonymies are proposed: Brachymeria argenteopilosa (Radosz-kowski, 1876) = Chalcis persica Masi, 1824 syn. nov., Brachymeria albicrus (Klug, 1834) = Chalcis rufigaster Masi, 1924 syn. nov. and Bucekia differens (Boucek, 1949) = B. Bouceki Nikol'skaya, 1960 syn. nov. The status of Lasiochalcidia [described under Euchalcis] igiliensis (Masi, 1916) is resurrected and is removed from synonymy with L. pubescens (Klug). Lectotypes are designated for Chalcis kassalensis Kirby, 1886, Halticella subelongata Kohl, 1906 and Chalcis pubescens Klug, 1834. Two genera, Bucekia Steffan, 1951 and Euchalcis Dufour, 1861, as well as eight species, Brachymeria kassalensis (Kirby, 1886), Dirhinus anthracia Walker, 1846, Antrocephalus subelongatus (Kohl, 1906), Bucekia differens (Boucek, 1949), Euchalcis unicolor (Lucas, 1871), L. rubripes (Kieffer, 1899), Psilochalcis dentata (Steffan, 1951) and P. subdola (Nikol'skaya, 1960), are new records for the Iranian insect fauna. A new host is recorded for E. unicolor. A list of 68 species in 18 genera of Chalcididae known from Iran is also included and some previous erroneous records are discussed

A first overview of the fauna of Chloropidae of Iran (Diptera, Acalyptratae)

Bazyar Z, Dousti AF, von Tschirnhaus M, Fallahzadeh M. A first overview of the fauna of Chloropidae of Iran (Diptera, Acalyptratae). Turkish Journal of Zoology. 2015;39(6):1041-1049.We present recent findings of Chloropidae in Iran and a first list of the Iranian species of this family. It includes 20 genera and 50 species (39 identified to species level), recorded up until 2014. Some European distribution records not included in Fauna Europaea are added. The courtship behavior of Polyodaspis sulcicollis is described for the first time

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New records of two cuckoo wasp species (Hymenoptera: Chrysididae) from Iran

Two cuckoo wasp species (Hymenoptera: Chrysididae), Trichrysis lacerta (Semenov, 1954) from the subfamily Chrysidinae, and Cleptes striatipleuris Rosa, Forshage, Paukkunen & Soon, 2015 from the subfamily Cleptinae, are newly documented for the Iranian fauna. The specimens were collected using Malaise traps in the Fars Province, south of Iran during 2015-2016. Notes about taxonomy, relevant references as well as geographical distribution of both species are given. The total number of Iranian Trichrysis and Cleptes currently increased to four and three species, respectively