Raw milk is a valuable food which its quality is important regarding both milk consumption itself and manufacturing of other dairy products. The aim of this study was to investigate the effect of different seasons on the variations of raw milk composition. To do so different samples of raw milk were taken during summer and winter from Qazvin province and their physicochemical properties includi...

Abstract Background Academic stress can cause mental and physical problems affect adolescents’ healthy development. This study aimed to estimate academic explore its sources at the individual- school levels among school-going adolescents in city of Qazvin, Iran. Results cross-sectional used a stratified cluster sampling recruit 1724 students aged 12–19 years from 53 schools Qazvin City. Data we...

The aim of this chapter is to investigate the line from the 19th century, through Frege’s works, to the appearance of the principle of compositionality in modern sciences. It is shown that contextuality and compositionality were discussed at the beginnings of the 19th century, but that contextuality was favoured. Also for Frege contextuality was the basic principle and he always obeyed it. Alth...

Historic preservation is good business. Through the use of the National Trust for Historic Preservation's research model, The Economic Benefits of Preserving Community Character: A Practical Methodology, the Historic Preservation Division of the Georgia Department of Natural Resources has explored the financial impact of preservation on three communities. The project was conducted with the coop...

Recent historic abundance is an elusive parameter of great importance for conserving endangered species and understanding the pre-anthropogenic state of the biosphere. The number of studies that have used population genetic theory to estimate recent historic abundance from contemporary levels of genetic diversity has grown rapidly over the last two decades. Such assessments often yield unexpect...

The nature of the era, and imposition modern developments in society, played a role stopping original function many old historical buildings, that became reason for neglecting such facilities, then destroying them, which threatens their demise greatly reduces general character city loses Its texture. It enjoys civilization seven thousand years fertile legacy history places attract tourists from...

American chestnut trees once dominated vast areas of deciduous forest in eastern North America, but the exotic chestnut blight almost eliminated the species from the region. Introduction of blight-resistant American chestnut hybrids will probably start in the next decade after many years of tree breeding. What were the historic effects of chestnut on forest soils, and what changes may follow re...

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