Abstract\nObjectives: Body dysmorphic disorder (BDD) is a psychological state in which patients recognize a distorted perception of their body images. Herein, we aimed to evaluate the prevalence of BDD in patients seeking orthodontic treatment via a systematic review of the scientific literature. Further, in the meta-analysis, the emphasis was to explore the central tendency and level of significance in cases of BDD seeking orthodontic treatment. \nData sources: A detailed scientific literature search was conducted utilizing the most relevant scientific studies between 2000 and 2020. We searched various databases, including PubMed, Cochrane Central Register of Controlled Trials, and Scielo databases. The MedCalc tool was used for the meta-analysis.\nData selection: We analysed a total of 1745 participants enrolled in five different studies. The clinical diagnosis results showed 122 cases of BDD-YBOCS (based on the Yale-Brown Obsessive-Compulsive Scale for BDD score) seeking orthodontic treatment. A significant increase (5–10%) in the number of BDD cases opting for orthodontic treatment was noted, and female patients with BDD showed a higher tendency of seeking orthodontic treatment than the male patients. Considering the forest plot and funnel plot analyses, a significant increase in the cases of BDD was observed (P < 0.0001).\nConclusions: The patients with BDD seeking orthodontic treatment have increased over the last two decades (range: 5–10%). Orthodontists are recommended for these cases of BDD seeking multiple consultations.
The article presents the results of an empirical study of indicators of psychological well-being of Social Work specialists as a type of professional activity, characterized by multifunctionality, wide functional and role repertoire, significant psycho-emotional loadings associated with providing assistance to vulnerable people. The low levels of psychological well-being were found in a large number of people under investigation. Groups of Social Work professionals with high and low levels of psychological well-being were identified and their socio-demographic characteristics were characterized. Gender-age differences in the psychological well-being of the investigated are determined, as well as differences in psychologically prosperous and disadvantaged professionals, depending on their level of education, place of residence and employment in the professional sphere, indicating a lack of psychological well-being in social work statistics significant relationship between the psychological well-being of the researchers and their world assumptions about the environment, other people and themselves. The expediency of organizing a special psychological support of social work specialists in the context of facilitating the transformation of basic installations in the constructive direction, and, as a consequence, ensuring their psychological well-being have stated.
The aims of the study were (a) to investigate the psychometric properties of the Farsi version of the Love of Life Scale (LLS) with psychiatric outpatients, (b) to explore its correlations with spiritual health and psychological well-being, (c) to explore the sex-related differences in LLS, and (d) to compare the mean LLS scores of the present sample of psychiatric patients with the available results on the LLS. A sample of 191 Iranian psychiatric outpatients was recruited from clinics at the School of Behavioral Sciences and Mental Health (Tehran Institute of Psychiatry), which is affiliated with the Iran University of Medical Sciences. They responded to the Farsi versions of the LLS, the Spiritual Well-Being Scale (SWBS) and the World Health Organization-5 Well-Being Index (WHO-5). Cronbach alpha of the LLS was 0.95, and a principal component analysis (PCA) of the LLS extracted one component labeled: "Love of Life". All the correlations between the scales were statistically significant and positive. Patients who had high scores on love of life had better spiritual health and psychological well-being. The present sample obtained a lower mean LLS score than all college students from eight countries except one. The sex-related difference in the LLS was not significant. Further research should explore predictors of the love of life.
To explore the differences in death depression between clinical and non-clinical groups and to estimate the gender-related differences, the Death Depression Scale (DDS) was administered to seven groups (N = 765) of Egyptian normal (non-clinical) subjects, anxious outpatients, schizophrenic inpatients (men and women), and addicts (men only) in individual sessions. Anxious outpatients of both sexes obtained significantly and greatly higher death depression scores than the other five groups, whereas the male schizophrenics, the male addicts, and the male and female non-clinical groups had the lowest death depression scores. Female schizophrenics obtained a significantly higher death depression scores than did male schizophrenics, addicts, and non-clinical participants. Female anxious outpatients and schizophrenics had higher death depression mean scores than did their male counterparts. The present finding is consistent, in general, with previous studies on death anxiety and death obsession.
The total edge irregularity strength tes(G) and total vertex irregularity strength tvs(G) are invariants analogous to irregular strength s(G) of a graph G for total labellings. Baca et al. [1] determined the bounds and precise values for some families\nof graphs concerning these parameters. In this paper, we show the exact values of the total edge irregularity strength tes(W3,n) = n/2 + 1 total vertex irregularity strength and tvs(W3,n) = ⌈n/4 ⌉ + 1 for the Knodel Graphs W3,n.
To ensure protection of naval electronic systems and crew against electromagnetic disturbances on board we must analyse, among other things, the shielding qualities of the materials used to build the ships. Moreover, if case of warships to protect the ship against magnetic mines .\n Within EMC field, the antidisturbing shielding solutions represents one of the most frequently used techniques of protection in present state of the art, implying a judicious choice of materials as well as of the ship construction.\n This paper focuses on the above mentioned approach, having as a starting point the short presentation of the method of shield calculus, known as method of impedances (a practical one), and the presentation of the attenuation expressions through reflection and absorption, covering the whole range of frequencies between 50 Hz to 20 GHz, common upon the civilian and military ships.\n We have analyzed some aspects concerning the near fields shielding (at low frequencies) and of far fields as well (at high frequencies).\n On the basis of these relations we aimed at establishing materials for naval electromagnetic shields, including weak magnetic warship building too.
As renewable resources, agricultural residues, such as cotton stalks, can be used as the lignosellulosic materials for producing particleboard. In this study, the optimum conditions for constructing the composite particleboard-based waste cotton stalks were evaluated to achieve a good performance of mechanical properties such as modulus of rupture (MOR), modulus of elasticity (MOE) and internal bonding (IB) of particleboard. The response surface methodology (RSM) is used to calibrate the experiment results-based 20 dataset of the mechanical properties based on input variables consist of weight percent of melamine formaldehyde resin (MF) in urea formaldehyde resin (UF), shelling ratio (SR), and the proportion of cotton particles to poplar particle (CP) in the core layer. An adaptive harmony search (AHS) algorithm is offered to search the optimum constructing conditions of mechanical properties for the composite particleboard using two optimization models. In the first stage, the optimum conditions are evaluated using maximum performance of mechanical properties and in second step, the optimum conditions are searched based on the material cost that the mechanical properties of composite particleboard are utilized in its constraints. The results showed that the RSM can be provided a perfect prediction for mechanical properties of particleboard. The AHS is successfully applied to optimize the composite conditions based on the mechanical properties constraints. In first optimization application, the optimal point is obtained for input variables in composite as 21.91% MU, 37.10% SR, and 13.54% CP. However, in second conditions, the optimum conditions are obtained for a good level as 18.32% MU, 51.71% SR, and 8.37% CP in the core layer.