Twenty-eight greenhouse screening materials, with predetermined airflow resistance values, were evaluated for exclusion of the silverleaf whitefly Bemisia argentifolii Perring & Bellows and thrips from a mixed-species population. Screens differed in exclusion efficacy, expressed as a percentage of the fiberglass window screen control and at an approach velocity of 92 m/min, from -35 to 94% for ...

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Couples HIV testing and counseling (CHTC) has been used for more than 20 years in African settings and more recently among men who have sex with men in the United States, but little is known about willingness of heterosexuals in the U.S. to use CHTC. We conducted an online survey of heterosexuals in sexual relationships to assess willingness to use CHTC and willingness to discuss relationship a...

Touch screens are very convenient because one can directly point to where it is interesting. This paper presents an inexpensive technique to transform an ordinary screen into a touch screen using an ordinary camera. The setup is easy: position a camera so it can see the whole screen. The system calibration involves the detection of the screen region in the image. which determines the projective...

The objective of this article is to set the scene for this supplement by presenting and discussing the overall outcomes of the HIV in Europe Copenhagen 2012 Conference and how the HIV in Europe initiative intends to further address challenges and themes raised during the conference.

This paper describes a novel approach to embedded software development. Instead of using a combination of C code and modeling tools, we propose an approach where modeling and programming is unified using projectional language workbenches. These allow the incremental, domainspecific extension of C and a seamless integration between the various concerns of an embedded system. The paper does not p...

PURPOSE To investigate the factors affecting the mammographic breast dose. MATERIALS AND METHODS The assessment was done on 622 qualified mammograms obtained with use of "variable kV" technique, i. e., semiautomatic mode, in screen-film mammography. Actual breast doses were calculated and analyzed to determine the roles of two screens and three films, two anode/filter selections (Mo/Mo and Mo...