Humans have cognitive mechanisms that allow them to keep track of time, represent past events, and simulate the future, but these capacities have intrinsic constraints. Here, we explore the role of material culture as an extension of internal time representations through anthropological and archeological case studies, focusing on Upper Paleolithic material culture. We argue that calendars compl...

background: date (phoenix dactylifera l.) is one of the most important agricultural crops in iran. this study was carried out to determine the possibility of using date paste for manufacturing a new ready-to-eat food product. methods: various formulations were prepared by mixing mazafati date paste, bread, oil (animal and olive), nuts and spices but only six formulas were chosen according to se...

Background: Hydroxymethylfurfural (HMF) is a common Maillard reaction product directly formed from dehydration of sugars under acidic conditions during heating and storage in carbohydrate rich foods. The aim of the present study was to detect and quantify the amount of HMF in date syrup by HPLC method. In addition, the amount of HMF in date syrup produced by traditional and industrial methods w...

Background: Date (Phoenix dactylifera L.) is one of the most important agricultural crops in Iran. This study was carried out to determine the possibility of using date paste for manufacturing a new ready-to-eat food product. Methods: Various formulations were prepared by mixing Mazafati date paste, bread, oil (animal and olive), nuts and spices but only six formulas were chosen according to s...

A method is described to assign product due dates for multistage assemblies with uncertain manufacturing and assembly process times. Earliest start times of operations are specified by a predetermined production plan and processing time distributions for operations are truncated at minimum processing times. The method systematically decomposes the complex product structures of multistage assemb...

yog-ice cream (frozen yogurt), is a kind of frozen dessert which has similar features to ice cream in physical and appearance characteristics. recently, there has been a growing interest in using frozen yogurt due to existence of lactic acid bacteria & fermentation processing. besides, yog-ice cream contains lower levels of sugar, fat & emulsifiers than ice cream. this research was conducted to...

in the current investigation, evaporation and transpiration potential were also estimated by means of fao penman- monteith evapotranspiration estimation method and deviation from optimum percentage (dop) technique by climatic elements (min-max temperature, relative humidity, wind speed and radiation) during at least 10 years statistical period regarding sunflower phenological conditions in kurd...

We argue why it is important to search beyond the superstring for consistent string theories that have space-time supersymmetry with critical space-time dimensions less than 10. We give a lengthy introduction on the motivation and approach. We discuss briefly some promising possibilities, namely, fractional superstrings. More specifically, we consider the K = 4, or spin-4/3 fractional superstri...

The success of the spinor helicity technique for tree processes is reviewed. To apply it to multiloop diagrams one is naturally led to the Schwinger proper-time representation, whose properties are discussed. This representation also serves as a useful link between field theories and string theories.