Medical diagnosis system and method with multispectral imaging

A skin diagnosis system includes a scanning and optical arrangement whereby light reflected from each incremental area (pixel) of the skin is directed simultaneously to three separate light filters, e.g., IR, red, and green. As a result, the three devices simultaneously produce three signals which are directly related to the reflectance of light of different wavelengths from the corresponding pixel. These three signals for each pixel after processing are used as inputs to one or more output devices to produce a visual color display and/or a hard copy color print, for one usable as a diagnostic aid by a physician

Cross-cultural effects of color, but not morphological masculinity, on perceived attractiveness of men's faces

This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 ElsevierMuch attractiveness research has focused on face shape. The role of masculinity (which for adults is thought to be a relatively stable shape cue to developmental testosterone levels) in male facial attractiveness has been examined, with mixed results. Recent work on the perception of skin color (a more variable cue to current health status) indicates that increased skin redness, yellowness, and lightness enhance apparent health. It has been suggested that stable cues such as masculinity may be less important to attractiveness judgments than short-term, more variable health cues. We examined associations between male facial attractiveness, masculinity, and skin color in African and Caucasian populations. Masculinity was not found to be associated with attractiveness in either ethnic group. However, skin color was found to be an important predictor of attractiveness judgments, particularly for own-ethnicity faces. Our results suggest that more plastic health cues, such as skin color, are more important than developmental cues such as masculinity. Further, unfamiliarity with natural skin color variation in other ethnic groups may limit observers' ability to utilize these color cues

A Statistical Examination of Friction Ridge Skin Patterns in the Interdigital, Hypothenar, and Thenar Areas of the Palms

Friction ridge skin, which is only located on the fingers, palms, and soles of the feet, has been used in the identification of individuals before the beginning of the twentieth century. A majority of the information known about friction ridge skin has been accumulated through the extensive research of fingerprints. Studies have been conducted to statistically categorize general patterns located on the fingerprints in order to include or exclude an individual for identification purposes. Although fingerprints offer great insight into the importance of friction ridge skin in forensic science, palm print patterns and characteristics have been relatively ignored. Therefore, a statistical evaluation of palm print patterns is necessary to assist latent print examiners in the inclusion and exclusion of prints during friction ridge classification

The Promotion of Skin-Bleaching Products in Jamaica: Media Representation and Cultural Impact

AN ABSTRACT OF THE RESEARCH REPORT OF JESSICA EDMOND, for the Master of Science degree in MASS COMMUNICATION AND MEDIA ARTS, presented on March 31, 2014, at Southern Illinois University Carbondale. TITLE: THE PROMOTION OF SKIN BLEACHING PRODUCTS IN JAMAICA: MEDIA REPRESENTATION AND CULTURAL IMPACT MAJOR PROFESSOR: William Freivogel and Phil Greer Through television commercials, print and digital advertisements, magazines, billboards, and the internet, the ideal skin complexion represented in Jamaican media is fair-skin tones. This idea that fair skin is better is common among other cultures in the world and is spreading to developed as well as developing nations worldwide. This study looks at different literature dealing with the effects of viewing media representation among women in Jamaica. This study found that there was greater complexion dissatisfaction among darker skinned women, but there was not enough evidence to suggest that this was a direct result of consuming media representation print, audio, television, magazines, etc of the subject

Uncovered Magazine: A Magazine Prototype and Business Plan

Through developing a skin care magazine prototype and business plan, this thesis aims to show how a print magazine can be successful to a young audience. By studying the history and development of both magazines and skin care and focusing on today’s industries, now is the perfect time to launch a skin care magazine. Uncovered Magazine will not only focus on filling this gap, but also will aim to empower women to find beauty in their natural skin

Latent Print Examination and Human Factors: Improving the Practice Through a Systems Approach: The Report of the Expert Working Group on Human Factors in Latent Print Analysis

Fingerprints have provided a valuable method of personal identification in forensic science and criminal investigations for more than 100 years. Fingerprints left at crime scenes generally are latent prints—unintentional reproductions of the arrangement of ridges on the skin made by the transfer of materials (such as amino acids, proteins, polypeptides, and salts) to a surface. Palms and the soles of feet also have friction ridge skin that can leave latent prints. The examination of a latent print consists of a series of steps involving a comparison of the latent print to a known (or exemplar) print. Courts have accepted latent print evidence for the past century. However, several high-profile cases in the United States and abroad have highlighted the fact that human errors can occur, and litigation and expressions of concern over the evidentiary reliability of latent print examinations and other forensic identification procedures has increased in the last decade. “Human factors” issues can arise in any experience- and judgment-based analytical process such as latent print examination. Inadequate training, extraneous knowledge about the suspects in the case or other matters, poor judgment, health problems, limitations of vision, complex technology, and stress are but a few factors that can contribute to errors. A lack of standards or quality control, poor management, insufficient resources, and substandard working conditions constitute other potentially contributing factors

Determining Drag Forces on 3D Printed Shark Skin and the Conditions in which Drag Forces are Reduced

ABSTRACT This project was conducted at the University of Arkansas with access to 3D printers and a water tunnel. The project examines drag forces over 3D-printed shark skin. Shark skin was chosen to be studied because of its unique three-pronged denticle shape and the assumption that this unique shape has a purpose, such as drag reduction. A shark denticle was designed using SolidWorks software, multiplied 164 times creating a total skin area of 17.5 in2, and printed using both a MakerBot Replicator 2 3D printer and an Ultimaker 2 Go 3D printer. The shark skin was initially printed using NinjaFlex material with the MakerBot, but the final 3D printed shark skin was printed with PLA using the Ultimaker printer. The Ultimaker printer has a higher resolution with an ability to print up to 20 micron, yielding a higher quality print [6]. The shark skin was placed on a 3D printed ABS plate and tested in a water tunnel against a control plate without shark skin. The plates were set to test at speeds of 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, and at the water tunnel’s maximum speed setting of 5 in/s. The water tunnel, however, only reached a maximum of about 3.52 in/s. Experimental data collected using deflection measurements yielded an average drag reduction value of 32%. This value was greater than expected due to the limited measurement sensitivity of this means of data collection. A strain gage setup was also used to collect data, but due to limited time, the setup was not calibrated as necessary. Preliminary data was taken, however, and is included in this paper

Cardiovascular and cortisol reactions to acute psychological stress and cognitive ability in the Dutch Famine Birth Cohort Study

Objective: Recently, in analyses of data from a large community sample, negative cross-sectional and prospective associations between cardiac stress reactivity and obesity were observed. The present study re-examined the association between cardiovascular reactivity and adiposity in the Dutch Famine Birth Cohort, with the additional aim of examining the association between cortisol reactivity and adiposity. Methods: Blood pressure, heart rate, and salivary cortisol were measured at rest and in response to standard laboratory stress tasks in 725 adults. Height, weight, waist and hip circumference, and skin fold thickness were measured. Four to seven years later 460 participants reported current height and weight. Obesity was defined as a BMI > 30kg/m2. Results: Cross-sectional analyses revealed negative associations between all measures of adiposity and heart rate reactivity; those with a greater BMI (ß = -0.39 bpm), waist-hip ratio (ß = -0.15 bpm), and triceps and subscapular skin fold thicknesses (ß = -1.0 bpm and -1.8 bpm), or categorized as obese (-3.9 bpm) displayed smaller cardiac reactions to acute stress (all p <.001). With the exception of waist-hip ratio, the same negative associations emerged for cortisol reactivity (all p ≤ .01). In prospective analyses, low cardiac reactivity was associated with an increased likelihood of becoming or remaining obese in the subsequent 4-7 years (OR 1.03, p = .01). All associations withstood adjustment for a range of possible confounders. Conclusions: The present analyses provide additional support for the hypothesis that it is low not high cardiac and cortisol stress reactivity that is related to adiposity

GelSlim: A High-Resolution, Compact, Robust, and Calibrated Tactile-sensing Finger

This work describes the development of a high-resolution tactile-sensing finger for robot grasping. This finger, inspired by previous GelSight sensing techniques, features an integration that is slimmer, more robust, and with more homogeneous output than previous vision-based tactile sensors. To achieve a compact integration, we redesign the optical path from illumination source to camera by combining light guides and an arrangement of mirror reflections. We parameterize the optical path with geometric design variables and describe the tradeoffs between the finger thickness, the depth of field of the camera, and the size of the tactile sensing area. The sensor sustains the wear from continuous use -- and abuse -- in grasping tasks by combining tougher materials for the compliant soft gel, a textured fabric skin, a structurally rigid body, and a calibration process that maintains homogeneous illumination and contrast of the tactile images during use. Finally, we evaluate the sensor's durability along four metrics that track the signal quality during more than 3000 grasping experiments.Comment: RA-L Pre-print. 8 page