A prototype sun sensor has been developed. It consists of a thin slice of silicon coated with a layer of chrome and a layer of gold with hundreds of small pinholes, placed on top of an Active Pixel Sensor (APS) image detector at a distance of 500 microns. Images of the sun are formed on the APS image detector when the sun illuminates the mask. Image processing of the Sun image is performed exte...

BACKGROUND Skin cancer prevention interventions that target the growing number of U.S. Hispanics are lacking. The current study examined the prevalence and correlates of sun protection and exposure behaviors (i.e., sunscreen use, shade seeking, use of sun protective clothing, and sunburns) among U.S. Hispanics with sun sensitive skin, with a focus on potential differences according to accultura...

BACKGROUND Photodamage is partially mitigated by darker skin pigmentation, but immune suppression, photoaging and cataracts occur among individuals with all skin types. METHODS To assess practices and acceptability to Black African mothers of sun protection equipment for their children living in a rural area, participants were recruited at the time of their child's 18-month vaccinations. Moth...

OBJECTIVE An analysis of Canadian survey data was performed to identify independent predictors of different protective behaviours and of their use in combination. METHODS Data from light-skinned respondents of the 1996 National Survey on Sun Exposure & Protective Behaviours who spent 30+ minutes per day of their leisure time in the sun (N = 1,027) were analyzed. Multivariable logistic regress...

Military veterans are a unique, predominantly male population at increased risk for skin cancer due to factors such as occupational sun exposure and special environments. Little is known about the use of protective behaviors in this population. This study examined among (20-59 YO) using National Health Nutrition Examination Survey (NHANES) from 2003-2006. 23,864,665 125,365,819 non-veterans wer...

Although the coffee berry borer (CBB) is most important pest worldwide, controversies remain regarding basic aspects of its behavior, such as how this influenced by abiotic factors agroecosystem. In study, we compared level infestation and total population per fruit under three different levels shade (full sun, up to 40%, >40%), for two varieties (Caturra Catimor) at altitudes (1200 1700 m a...

Soil quality can directly influence the health, yield, and of a particular crop species, agrochemicals are often used to boost soil micro- macro-nutrients. The excessive application agrochemicals, however, is cause imbalances in acidity nutrient concentration deteriorate. presence multiple shade trees farmland positively quality. Here, we evaluate effect agrochemical use (i.e., organic, mixed, ...

Single pixel dynamic-range compression alters a particular input value to a unique output value a look-up table. It is used in chemical and most digital photographic systems having S-shaped transforms to render high-range scenes onto low-range media. Postreceptor neural processing is spatial, as shown by the physiological experiments of Dowling, Barlow, Kuffler, and Hubel & Wiesel. Human vision...