Pigeons have long been a common nuisance at numerous cultural sites in the Kathmandu Valley. Besides health, economic and aesthetic issues caused by pigeon excreta, this waste may also result damaging effects to materials used Nepalese architecture, including metals such as copper its alloys. This study assessed impact of excreta on metal-based monuments importance To test corrosive fresh were ...

Background: Phosphogypsum is material produced as a byproduct in fertilizer industry and generally used for building materials. This may contain enhanced radium-226 (226Ra) activity concentration compared to its natural that lead indoor radon accumulation. Therefore, an accurate measurement method proposed this study determine 226Ra phosphogypsum sample, considering the potential leakage from s...

The gamma radiation in samples of a variety of natural tiling rocks (granites) imported in Cyprus for use in the building industry was measured, employing high-resolution gamma-ray spectroscopy. The rock samples were pulverised, sealed in 1-l plastic Marinelli beakers, and measured in the laboratory with an accumulating time between 10 and 14 h each. From the measured gamma-ray spectra, activit...

Sole carbon source utilization (SCSU) patterns and phospholipid fatty acid (PLFA) profiles were compared with respect to their potential to characterize root-inhabiting microbial communities of hydroponically grown crops. Sweet pepper (Capsicum annum cv. Evident), lettuce (Lactuca sativa cv. Grand Rapids), and four different cultivars of tomato (Lycopersicon esculentum cvs. Gitana, Armada, Arom...

OBJECTIVE To evaluate the insecticidal effect of diatomaceous earth (DE) against adults and nymphs of Blattella germanica. METHODS This cross sectional study has been done on the laboratory strain of German cockroaches. Two stages, nymph and adult, were exposed to six dose rates of the DE, 2.5, 5, 10, 15, 20 and 25 g/m(2), at 24, 48 and 72 h exposure period. Mortality (number of dead cockroac...

Competent larvae of the serpulid polychaete, Hydroides elegans (Haswell), were induced to 24 metamorphose by either 10 M 3-isobutyl 1-methylxanthine (IBMX), adult homogenate, or 30 1 1 mM excess K . Treatment with excess K had adverse effects (P , 0.05) on juvenile growth while IBMX and adult homogenate had no detectable effects (P . 0.1). Metamorphosis was triggered using IBMX in subsequent st...

Biodiesel is continuously gaining attention and significance as an alternative diesel fuel. An important issue facing biodiesel is fuel stability upon exposure to air due to its content of unsaturated fatty acids. Numerous factors influence the oxidative stability of biodiesel, and several methods for its assessment have been developed. In the present work, a defined amount of biodiesel (methyl...

Municipal solid waste was collected from Varanasi’s municipal solid waste dumpsite and sorted for organic fraction present in it. Current work showed the consequences of calcium hydroxide or lime digestion on organic fraction of municipal solid waste of Varanasi, India. The organic fraction of municipal solid waste sample was digested with desired amount of calcium hydroxide. The different conc...

Droplets are versatile digital materials; they can be produced at high throughput, perform chemical reactions as miniature beakers and carry biological entities. Droplets have been manipulated with electric, optical, acoustic and magnetic forces, but all these methods use serial controls to address individual droplets. An alternative is algorithmic manipulation based on logic operations that au...