To examine modelling of outcomes relevant to sun protection in Australian women's magazines, content analysis was performed on 538 spring and summer issues of popular women's magazines from 1987 to 2005. A total of 4949 full-colour images of Caucasian females were coded for depth of tan, extent of clothing cover, use of shade and setting. Logistic regression using robust standard errors to adju...

We examined the effects of structural and physiological acclimation on the photosynthetic efficiency of Scots pine (Pinus sylvestris L.) shoots. We estimated daily light interception (DLI) and photosynthesis (DPHOT) of a number of sample shoots situated at different positions in the canopy. Photosynthetic efficiency (epsilon) was defined as the ratio of DPHOT to the potential daily light interc...

T he handheld umbrella (HU) is a commonly employed method of sun protection by women in many countries in Asia (45% in China) and the Middle East. In Turkey, hats and umbrellas were found to be the most common photoprotection accessories. The HU was standard outdoor attire for women of the 18th and 19th centuries in the United States. In the next century, sunscreen, hats, and sun-protective clo...

I attempted to test for the effects of thermoregulatory costs on the foraging behaviour of eastern grey squirrels (Sciurus carolinensis) and American Crows (Corvus brachyrhynchos). I examined the foraging of these two animals in paired trays filled with sand and sunflower seeds under cold winter conditions. One tray was exposed to direct solar radiation that reduced the thermoregulatory costs o...

[i] We present elementary analytic models for a fast-spinning, dielectric-coated, spherical spacecraft charging in sunlight. The models are based on a multipole expansion of Laplacian potentials external to the spacecraft surface. We assume azimuthal symmetry about the spin axis, and the spin period must be short compared with surface differential charging times. There are three parameters in t...

PREMISE OF STUDY The presence of genetic variation for traits that contribute to ecological range expansion can provide the potential for introduced taxa to evolve greater invasiveness. Genotypes that contribute to the spread of introduced range populations must have the ability to maintain fitness under changing environmental stress and competitive intensity. Previously, we identified a subset...

The circular distributions of plant modulars (branches, leaves) and endophagous herbivory (mines, galls) were investigated within the crowns of four dominant Fagaceae trees in a subtropical evergreen broadleaf forest at Jiulianshan National Nature Reserve, Jiangxi, China. The hypothesis is that more plant modulars and more endophagous herbivory should occur in the crown area perpendicular to th...

OBJECTIVE To examine whether students use or avoid newly shaded areas created by shade sails installed at schools. DESIGN Cluster randomised controlled trial with secondary schools as the unit of randomisation. SETTING 51 secondary schools with limited available shade, in Australia, assessed over two spring and summer terms. PARTICIPANTS Students outside at lunch times. INTERVENTION Pur...

IMPORTANCE Mobile smartphones are rapidly emerging as an effective means of communicating with many Americans. Using mobile applications (apps), they can access remote databases, track time and location, and integrate user input to provide tailored health information. OBJECTIVE A smartphone mobile app providing personalized, real-time sun protection advice was evaluated in a randomized clinic...