This paper evaluates a novel receiver design concept that implements photovoltaic (PV) cells on heat shields and bellows shields to capture optical spillage from central receiver and parabolic trough concentrating solar power (CSP) plants, generating electricity from concentrated light that would otherwise be wasted. A combination of conventional silicon and multi-junction concentrating PV (CPV...

OBJECTIVE To determine whether gonad shields are correctly positioned on the pelvic radiographs of children with slipped capital femoral epiphysis. DESIGN Retrospective study of radiographs taken of children treated by in situ pinning of slipped capital femoral epiphysis between 1 January 1983 and 31 December 1988. SETTING Three teaching hospitals in north west England. PATIENTS 32 patien...

Turning motor into anchor A motor in the fl y oocyte is turned into a static anchor to hold its polarity-inducing cargo in place, say Renald Delanoue, Bram Herpers, Jan Soetaert, Ilan Davis (University of Oxford, UK), and Catherine Rabouille (University Medical Centre Utrecht, Netherlands). The switch from motor to anchor is thrown by an RNA-binding protein called Squid. Squid mutants were orig...

The results of substantiation the improved technology for manufacturing frequency-selective electromagnetic shields are presented. improvement this was ensured by following: 1) inclusion elements in form classical Archimedes spirals, formed from foil materials, into volume manufactured to ensure properties such shields; 2) fixing specified thermal pressing. indicated features determine main adv...

BACKGROUND AND AIM: Protective equipment, such as lead aprons and thyroid shields, is effective in reducing patient radiation. This study was conducted for evaluation the use of thyroid shields and lead aprons in dental offices, in Kerman, Iran, in June 2014.METHODS: In this descriptive-analytical study, 106 dental offices with active X-ray machines were evaluated in Kerman. The information was...

We have designed and tested a set of five miniature nested magnetic shields constructed of high-permeability material, with external volumes for the individual shielding layers ranging from 0.01 to 2.5 cm(3). We present measurements of the longitudinal and transverse shielding factors (the ratio of external to internal magnetic field) of both individual shields and combinations of up to three l...

1. Marigo FA, Finger PT, McCormick SA, et al. Iris and ciliary body melanomas. Arch Ophthalmol. 2000;118:1515-1521. 2. SunbaMS,RahiAH,MorganG.Tumorsof theanterior uvea, I: metastasizing malignant melanoma of the iris. Arch Ophthalmol. 1980;98:82-85. 3. Planten JT. An unnecessary mistake. Ophthalmologica. 1970;160:369-371. 4. GrossniklausHE,BrownRH,StultingRD,etal. Iris melanomaseeding througha ...

A pendant was claimed to provide numerous health benefits, including reduced stress, increased strength, and protection from electromagnetic radiation from computers and mobile phones. Three experiments tested the effectiveness of this pendant's effect as a bioelectric shield. In the first experiment, 12 subjects who work with computers wore shields (6 real, 6 sham) for several weeks and were r...

In this article, we outline our view of how concentration shields against distraction. We argue that higher levels of concentration make people less susceptible to distraction for two reasons. One reason is that the undesired processing of the background environment is reduced. For example, when people play a difficult video game, as opposed to an easy game, they are less likely to notice what ...