BACKGROUND Control of dust mites using extremes of temperature is an alternative to the use of acaricides. In the past we have attempted control by freezing with liquid nitrogen. The present paper deals with the opposite extreme, the use of steam. OBJECTIVE To assess the feasibility and effectiveness of a domestic steam cleaner for the control of dust mites, its effect on mite populations and...

In this paper, we consider the strict self-assembly of fractals in one of the most well-studied models of tile based self-assembling systems known as the Two-handed Tile Assembly Model (2HAM). We are particularly interested in a class of fractals called discrete self-similar fractals (a class of fractals that includes the discrete Sierpinski’s carpet). We present a 2HAM system that strictly sel...

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the machine made carpet industry is one of the main and most famous industries in iran and especially in the city of yazd. however there is little information about customer preferences for different attributes of this product. in this article we tried to estimate the relative importance of the main attributes affecting customer desire for purchasing machine made carpet and the utility values f...

background: most rural carpet weaving workshops are part of the house and sanitary conditions of the workshop not only affect the weaving but also other family members this study aimed to determine the aerosol and bioaerosols concentration in the rural household carpet weaving workshops in isfahan. methods: in this this study is a cross - sectional study and was performed in 92 rural household ...

Carpeting can be found throughout various buildings, whether residential or commercial. This carpeting can be very useful to forensic scientists, especially when biological samples are present on it. However, obtaining high quality DNA profiles from this potential piece of evidence can be challenging due to the presences of Polymerase Chain Reaction (PCR) inhibitors that will interfere with the...

We study the orthogonal projections of a large class of self-affine carpets, which contains the carpets of Bedford and McMullen as special cases. Our main result is that if Λ is such a carpet, and certain natural irrationality conditions hold, then every orthogonal projection of Λ in a non-principal direction has Hausdorff dimension min(γ, 1), where γ is the Hausdorff dimension of Λ. This gener...

In 1836 Henry Fox Talbot, an inventor of photography, published the results of some experiments in optics that he had previously demonstrated at a British Association meeting in Bristol. "It was very curious to observe that though the grating was greatly out of the focus of the lens...the appearance of the bands was perfectly distinct and well defined...the experiments are communicated in the h...