There exist many methods for the application of the Gram stain to histological sections, and with all of them there is generally no difficulty in recognising Gram-positive organisms. However, with most of the well-recognised methods Gram-negative bacteria are difficult to distinguish from the background. Twort's method distinguishes Gram-negative bacteria from the background but is relatively t...

plants as the life giving entities have important role in mental and physical health of human. in the modern time with expansion of the cities and increase  of industrial centers and living style change and decrease of social negligence about green spaces as the factor for mental diseases, altogether have been propounded for many psychologists and physicians. in this way considering green space...

Animal colour signals used in intraspecies communications can generally be attributed to a composite effect of structural and pigmentary colours. Notably, the functional role of iridescent coloration that is 'purely' structural (i.e., absence of pigments) is poorly understood. Recent studies reveal that iridescent colorations can reliably indicate individual quality, but evidence of iridescence...

A carbon-based industry, such as oil refinery, needs to change its business model to achieve a green business. Considering the existing too much data, the modeling procedure is complex. Therefore, combination of the Fuzzy Delphi method and System Dynamics can be considered to cover this complexity. The starting point in this work is literature review of prior studies on the same common topic an...

Development of an ion-exchange HPLC method to simultaneously determine certain organic acids and sugars in green coffee is described. Identifying and quantitating flavor relevant compounds in green coffee offers the potential for an objective measure of cup quality. Presently, a panel of trained experts who rely upon sensory discrimination, a subjective measure, determines coffee quality. Accur...

Physical properties of gravitational instantons which are derivable from minimal surfaces in 3-dimensional Euclidean space are examined using the Newman-Penrose formalism for Euclidean signature. The gravitational instanton that corresponds to the helicoid minimal surface is investigated in detail. This is a metric of Bianchi Type V II0, or E(2) which admits a hidden symmetry due to the existen...

urbanization and population growth along with an increase in the environmental pollution resulting from human activities which have dramatically changed the green space and land cover have been key factors in the sustainable development of land and the management of land use. to collect reliable data required for providing land cover maps as well as for investigating the environment, remote sen...

environmental characteristics, including the quality of green spaces, constitute one of the determinants of buildings (house & apartment) transaction prices. in this research, impact of urban green space on building's transaction prices (rials/m2) in karaj region, district 1 (jahanshahr), was analyzed. therefore, a questionnaire concerning building characteristics and transaction prices wa...