Joint Research on Aerodynamic Characteristics and Handling Stability of Racing Car under Different Body Attitudes

With the rapid development of FSAE, the speed of racing cars has increased year by year. As the main research content of racing cars, aerodynamics has received extensive attention from foreign teams. For racing cars, the aerodynamic force on the aerodynamic device ultimately acts on the tires through the transmission of the body and the suspension. When the wheel is subjected to the vertical load generated by the aerodynamic device, the ultimate adhesion capacity of the wheel is improved. Under changing conditions, racing wheels can withstand greater lateral and tangential forces. Therefore, the effects of aerodynamics have a more significant impact on handling stability. The FSAE racing car of Jilin University was taken as the research object, and this paper combines the wind tunnel test, the numerical simulation and the dynamics simulation of the racing system. The closed-loop design process of the aerodynamics of the FSAE racing car was established, and the joint study of aerodynamic characteristics and handling stability of racing car under different body attitudes was realized. Meanwhile, the FSAE car was made the modification of aerodynamic parameter on the basis of handling stability. The results show that, after the modification of the aerodynamic parameters, the critical speed of the car when cornering is increased, the maneuverability of the car is improved, the horoscope test time is reduced by 0.525 s, the downforce of the car is increased by 11.39%, the drag is reduced by 2.85% and the lift-to-drag ratio is increased by 14.70%. Moreover, the pitching moment is reduced by 82.34%, and the aerodynamic characteristics and aerodynamic efficiency of the racing car are obviously improved. On the basis of not changing the shape of the body and the aerodynamic kit, the car is put forward to shorten the running time of the car and improve the comprehensive performance of the car, so as to improve the performance of the car in the race.

Pressure to be Thin from a Religious Source Increases Perceived Pressure to be Thin in Women

Pressure to be thin through thin-idealization norms is something that women contend with daily in today’s world. Increased research has explored the effects this pressure can have on attitudes about the self. Religious beliefs and behaviors have been linked to decreased perceived pressure and positive body attitudes and behaviors. However, religious beliefs and behaviors have also been linked to negative outcomes in this area. This study explores the impact of pressure to be thin from a religious source. One hundred fifty-three women were either presented with pressure statements from a religious source, a family/friend source, or read no pressure statements. Women who read religious pressure statements reported more pressure to be thin than those in the control or family/friend pressure conditions.

Young Women’s Body Attitudes and Sexual Satisfaction: Examining Dehumanization and Communication as Serial Multiple Mediators

Women’s bodies are frequent sites of stigmatization. The internalization of negative attitudes toward the body can have negative implications for women’s sexual wellbeing. In the current study, we examined the relationships between young women’s internalization of body stigma—including body shape, genitals, and menstrual periods—and sexual satisfaction. Additionally, we tested two mechanisms that may mediate the relationship between body attitudes and sexual satisfaction: dehumanization (i.e., feelings of a loss of autonomy and subjectivity) and communication with a sexual partner (e.g., expressing needs and desires). We collected and analyzed survey data from 569 undergraduate women. We tested serial mediation models, such that more negative body attitudes would predict greater feelings of dehumanization, and more dehumanization would predict less comfort communicating with a sexual partner, and less comfort communicating would then predict decreased sexual satisfaction. We found support for serial mediation, which suggests that the links between body attitudes and sexual satisfaction may be partially explained by feelings of dehumanization and communication with a sexual partner. Our findings identify opportunities for intervention in practice and policy, and further clarify the ways that sociocultural stigma surrounding women’s bodies extends beyond the body—affecting women’s feelings of power, relationships, and sexual lives.

Identifying attributes motivating appearance management behaviours among young college women: Narcissism, self-efficacy, body attitudes and internalization of beauty ideals

The purpose of this research was to investigate a range of individual attributes (i.e. narcissism, self-efficacy, body attitudes and internalization of beauty ideals) as antecedents to young college women’s engagement in both general (non-risky) and risky appearance management behaviours. This study also examined the mediating role of beliefs about the importance of appearance in the relationship between all antecedent variables and engagement in appearance management behaviours. A survey was conducted with female undergraduates (n = 120) who enrolled at a land-grant university in the Midwestern United States. A mediation analysis with PROCESS was conducted to test the direct and indirect relationships among the variables. Exhibitionistic narcissism and internalization of beauty ideals had positive indirect effects on both general (non-risky) and risky appearance management behaviours via beliefs about the importance of appearance. Self-efficacy had a positive direct effect on both general (non-risky) and risky appearance management behaviours, while it had no indirect effect via beliefs about the importance of appearance. Body attitudes had a positive direct effect on general (non-risky) appearance management behaviours only. A mediating role of beliefs about the importance of appearance is discussed. Academic contributions and managerial implications are also discussed.

Non-suicidal self-injury in patients with eating disorders: nuclear aspects

Background: Through the culture of thinness, increasingly promoted in our society as a beauty canon, it is not surprising that the number of people affected by eating disorders is increasing. Objective: This research aims to study the relationship between non-suicidal self-injuries and nuclear aspects of eating disorders specified along with this article. Methods: The sample consisted of 60 women diagnosed with anorexia and bulimia. Questionnaires assessing impulsivity, body satisfaction, alexithymia, body attitude and self-esteem were administered. Participants with non-suicidal self-harm were compared with those without, and participants with anorexia with and without self-harm and participants with bulimia with and without self-harm were compared. Results: Differences were found in body dissatisfaction = 5,71; p ≤ ,01), body attitudes = 4,80; p ≤ ,02), self-esteem = 14,09; p ≤ .00) and impulsivity (t = 3,39; p ≤ ,01) between participants with and without non-suicidal self-harm. Conclusions: These are key factors for the clinic in the treatment of eating disorders to prevent the presence of self-harm, as it allows focusing the treatment target on those aspects such as dissatisfaction and impulsivity, which are key in the development of self-harm.

Preoccupation with Body Weight and Under-Reporting of Energy Intake in Female Japanese Nutrition Students

The present study aimed to examine associations between body image and under-reporting in female Japanese university students enrolled in a nutrition degree program. A total of 100 participants (aged 18–29 years) completed (1) a self-administered questionnaire including the Ben-Tovim Walker Body Attitudes Questionnaire (BAQ), (2) a dietary assessment using a brief-type self-administered diet history questionnaire (BDHQ), (3) a physical activity assessment using Bouchard’s Physical Activity Record (BAR) and a tri-axial accelerometer, (4) detailed anthropometry, and (5) body composition assessment. Based on the energy intake to basal metabolic rate ratio (EI:BMR) and using a cut-off point of 1.35, 67% of participants were considered under-reporters (URs). While there was no between-group difference in BMI, URs had significantly (p < 0.05) greater percentage body fat (%BF) and trunk fat (%TF) compared with non-URs. Regression analyses indicated accuracy of body perception and a discrepancy between current and ideal weight were associated with EI:BMR, whereas the salience subscale of the BAQ was associated with reported EI. The study raises concerns regarding the validity of EI reported from young Japanese females as they are known to have a strong preoccupation with thinness, even with an acceptable BMI and health and nutritional knowledge.