Perception of cosmetic surgery and associated side effects: A content analysis study of South Korean female college students

Metamaterial based AMC backed archimedean spiral antenna for in-vitro microwave hyperthermia of skin cancer

This research article presents a study that uses microwave frequencies (ISM band) for treatment of skin cancer by heating the malignant cells on skin with a Microwave Hyperthermia (MWHT) applicator. The proposed MWHT applicator has been designed as an Archimedean Spiral Microstrip Patch Antenna (AMSPA) of dimensions 38 × 38 × 1.64 mm3 backed with a Meshed-shaped AMC (48 × 48 × 3.27mm3) reflector, placed at an optimized distance of 12 mm from AMSPA. The proposed AMSPA is designed as a single spiral resonator and fabricated on FR-4 substrate, excited using a feed network. The proposed AMSPA shows a resonance at 2.5 GHz with an impedance BW of 260 MHz (2.37-2.63 GHz) and peak gain of 3.20 dB with a bidirectional radiation pattern. An AMC is placed at its backside that can be exploited as a phase-compensation surface to attain an in-phase profile for directive emission and improve the BW upto 470 MHz, peak gain to 6.8 dB and also enhance the front-to-back ratio of the radiating antenna with radiation efficiency of 80%. The simulated environment for hyperthermia analysis is set up using penne's Bio-Heat equations to deliver microwave energy to the bio-mimic, that leads to a rise in temperature over the designed bio-mimic in CST MWS in the range of 41-45°C. The validation of MWHT radiation properties and temperature rise inside the malignancy of phantom is carried out by fabricating the bio-mimic using gelatine, vegetable oils and glycerol. This set up enhances the penetration-depth of EM waves inside the tri-layered phantom up-to 29.5 mm with Effective Field Surface of 36 × 36 mm2 and SAR of 8 W/Kg.

Cosmetic Surgery and the Diversity of Cultural and Ethnic Perceptions of Facial, Breast, and Gluteal Aesthetics in Women: A Comprehensive Review

An increasing number of people are opting for cosmetic surgeries. For many years, the physical and aesthetic appearance of Caucasians has been considered to be ideal. However, it is now commonly acknowledged that attractiveness and aesthetic standards vary among cultural backgrounds and ethnic groups and that Western attractiveness criteria no longer apply to all. Herein, we conducted a comprehensive review of studies that examined cultural and ethnic variations in preferences for facial, breast, and gluteal aesthetics, as well as reviewed studies that investigated ethnic disparities in attitudes and motivations for cosmetic surgery. A total of 4532 references were identified, 66 of which met the inclusion criteria. Several studies have reported that facial golden ratios are invalid for representing perceived attractiveness standards among different ethnicities. The majority of studies also indicated that facial aesthetic interventions should not aim to Westernize but to optimize ethnic traits. Significant ethnic differences in preferences for upper- and lower-pole breast proportions have been reported. The size of the buttocks and waist-to-hip ratio were identified as the main factors of buttock aesthetics, with buttock size preferences having a high ethnic diversity. Interest in cosmetic surgical procedures while maintaining ethnic identity continues to grow among young women worldwide. This comprehensive review strongly suggests that accommodating cultural and ethnic differences in aesthetic standards in cosmetic surgery planning can lead to more acceptable cosmetic outcomes.