A naturalness bias has been defined as ‘a preference for things perceived as natural’. This paper makes a first attempt at answering the question whether a naturalness bias exist in the context of lighting, and whether people’s sense of personal connection to nature and their beliefs towards different types of lighting affect its occurrence. This exploratory paper uses four studies to evaluate ...

Full-color, three-dimensional images of objects under incoherent illumination are obtained by a digital holography technique. Based on self-interference of two beam-split copies of the object's optical field with differential curvatures, the apparatus consists of a beam-splitter, a few mirrors and lenses, a piezo-actuator, and a color camera. No lasers or other special illuminations are used fo...

In a dye-sensitized solar cell (DSSC), the amount of light absorption dependson the design of the pigments, which determines the strength of light absorption and theoptical range of the cell. In this paper, we have constructed and studied two fairly similarpattern of DSSCs in structure. The thickness of TiO2 used for both cells is taken to be 2μm. We have used an industrial N719 dye for one of ...

there is increasing demand for use of natural preservatives such as bacteriocins to control foodborne pathogens in seafoods. this study was performed to evaluate the antimicrobial effects of nisin on staphylococcus aureus in light and heavy salted silver carp fillets (4 and 8% nacl). effect of different concentrations of nisin (0, 0.15, 0.25, 0.75, 1.5 µg/ml) on behavior of s.aureus at unfavour...

Natural food pigments are commonly utilized for the improvement of the qualitative properties of foods and/or inhibit the development of chronic and degenerative diseases. Several studies have documented the beneficial health effects of natural food pigments, such as anthocyanins, chlorophylls, and carotenoids. These effects mainly depend on the stability, bioactivity, and bioavailability of th...

visceral leishmanisasis is endemic and zoonotic in several foci in ardabil province, north west of iran. the main objective of this study was to determine the natural promastigote infection of sand-flies in active seasons, during 1991-1995. sand-flies were caught by sticky traps, aspirator and cdc light traps from indoors and outdoors. altogether 2659 sandflies were dissected and identified. th...