No abstract

The present review investigates the complex associations between children’s affective states, body perceptions, and eating habits, thus providing crucial insights for potential health interventions. Following PRISMA guidelines, three databases were searched for peer-reviewed studies exploring the relationship between eating habits, emotional states, and body image perceptions in a population of children (5 to 11 years old). A total of seven articles were included. Our findings revealed a pattern of associations between negative emotional states, like anxiety and depressive feelings, and maladaptive eating behaviors. Additionally, explicit influences from parental feeding practices, peer pressure, socioeconomic factors, and children’s body perceptions were observed to shape eating habits, with a pronounced tendency among older girls towards dieting and food preoccupation. Our results underline the intertwining nature of age, gender, and emotional states. Furthermore, our findings accentuate the urgency for comprehensive interventions that acknowledge and address the complex interplay of emotional, familial, and socioeconomic factors alongside children’s body image perceptions. The criticality of continued research, particularly ones employing longitudinal designs and diverse demographic samples, is highlighted as we strive to understand and navigate such multifaceted relationships to enhance children’s health and well-being.

Initial investigation of some automotive exhausts that failed during operation in this study revealed that most of the fractures occurred at the position where the diameter of the exhausts changed. Light optical microscopy (OM) and scanning electron microscopy (SEM) examinations have shown that the aluminized coating in the failure area had become cracked during the manufacturing process. This situation led to substrate oxidation and cracking at the elevated temperatures and under cyclic load conditions. It is found that the failure is ultimately due to fatigue caused by the combination of mechanical vibrations and thermal cycles. In addition, oxidation of the crack tip may have accelerated the fatigue crack growth process. A design change mitigated the tendency for failure.

In this study, Ag 2 S/WO 3 Nano-composite was synthesized by hydrothermal method and identified by techniques including Fourier Transform Infrared Spectroscopy (FT-IR), Brunaure, Emmett and Teller (BET), Field Emission-Scanning Electron Microscopy (FE SEM), Energy Dispersive X-ray (EDX), X-Ray Diffraction (XRD), Ultraviolet-Visible spectroscopy (UV-Vis) and Diffuse Reflection Spectroscopy (DRS). This Nano-composite represents good efficiency to degrade the color of crystals violet (CV) in the aqueous medium owing to subsequent activation under visible light. The central composite design (CCD) was used to examine dependency of degradation to variables viz time, pH, amount of photo-catalyst, and CV concentration. The modeling results show the applicability of the quadratic model to predict and estimate the relationship between independent and dependent variables, while judgment were examined according to Correlation coefficients. The highest percentage of CV degradation was achieved under optimal conditions set as 45 minutes irradiation of 6 mg.L À 1 of VC at pH of 7 using 1.25 g of Ag 2 S/Wo 3 which lead to decompositions of around 98 % which has good agreement with the laboratory results (97.65 %). The regeneration of Ag 2 S/ WO 3 nano-composite reveals decreases in its applicability to conduct similar experiments and close results till 4 replicates. Also, the kinetic of analysis of the CV decomposition follows the quasi-first-order model.