BACKGROUND During routine surgical treatment of basal cell carcinomas (BCCs), we observed an apparent inverse relationship between the presence of a BCC and significant wrinkling of the face. To ascertain the veracity of this observation, we performed a clinical and questionnaire-based case-referent study. OBSERVATION One hundred eighteen successive white patients (mean +/- SD age, 71.9 +/- 9...

Finite element simulation of stretch flanging process was carried out in order to investigate the effect of process parameters on maximum thinning (%) in stretch flanging process. Influences of initial flange length, punch die clearance, width of sheet metal blank and blank holding force were investigated on maximum thinning (%). Finite element simulation was done using FEM software package ABA...

We study the deflection by gravity of a circular elastic disk deposited on rigid support. The axisymmetric induces compressive orthoradial stresses which leads to wrinkling instability above critical threshold dimensionless force. this combination experiments, numerical simulations and analytical tools, with particular focus role geometry. show that aspect ratio is crucial parameter controls bo...

Surface Wrinkling In article number 2203491, Qingshan Wei, Yong Zhu, Seung Goo Lee, and co-workers summarize the recent advances in flexible stretchable sensors based on surface wrinkling, which provides an effective alternative to improve both sensing performance mechanical deformability of sensors. The detailed fundamental mechanics wrinkle formation, geometry control strategies, fabricating ...

habilitation of patients who have undergone extensive surgery for eradication of neoplasm of the maxillae requires restoration of the functions of speech, mastication, and deglutition. The options for rehabilitation of these patients are surgical reconstruction or prosthetic restoration. According to Sharry,’ even when surgical techniques are available, prosthetic reconstruction is chosen most ...

The scattering of a fluid-structure coupled wave at a flanged junction between two flexible waveguides is investigated. The flange is assumed to be rigid on one side and soft on the other; this enables a solution to be formulated using mode-matching. It is shown that both the choice of the edge conditions imposed on the plates at the junction and the choice of incident forcing significantly aff...

BACKGROUND Although cosmetic procedures have a significant impact on certain aspects of aging, such as deep, wrinkling, sagging, and volume loss, they fail to address the overall quality of the skin. METHODS Daily skincare routines potentially can have a significant long-term impact on the overall quality of a person's complexion. RESULTS By expanding our product knowledge, we can help our ...

Hyperornithinaemia gyrate atrophy (HOGA) is a rare autosomal recessive disorder in which chorioretinal degeneration occurs with cataracts, myopia, and hyperornithinaemia. We report the case of an 18-year-old female who presented with the typical features of HOGA, including posterior subcapsular cataracts and elevated plasma ornithine. She later developed distorted vision in both eyes owing to w...

This paper presents a bilayer model to account for surface effects on the wrinkling of ultrathin polymer films. Assuming a surface layer of finite thickness, effects of surface properties on the critical strain, the equilibrium wavelength, and the wrinkle amplitude are discussed in comparison with conventional analysis. Experimental measurements of wrinkling in polymer films with thickness rang...

The author neglected to cite a previously published related paper which reports that, when partially polymerized membranes suffer a wrinkling transition, the distribution of wrinkles is lognormal 1. In addition, some of the data reported in the manuscript were previously reported in reference 1. The data in Figure 1 are taken from Figure 3a and Figure 5 in ref. 1; Figure 2b is adapted from Figu...