this study was conducted to explore the effects of drought stress and different levels of potassium sulfate on yield and yield attributes of grain sorghum at agriculture and natural resources research station of sistan during year of 2009. treatments were arranged in a split-plot lay out based on a randomized complete block design with three levels of drought stress as main plot (irrigation at ...

in what follows, the author has dealt with the relation between the necessary being as an unchangeable essence and his changeable and unchangeable attributes. neither is the ascription of any changeable attribute impossible for god nor is the ascription of any kind of unchangeable attribute possible. as the change of genitive attributes does not demand the change in the essence, it is possible ...

the relation between ethics and human good and evil attributes and his nature is among the age-old discourses in the field of practical philosophy (wisdom). since long ago, it has been of concern to the learned and the philosophers as to whether all ethics or a part of it in all human beings or in some of them is optional and acquired or non-optional, unacquirable, and unchangeable. this writin...

The creative cognition approach views creativity as the generation of novel and appropriate products through the application of basic cognitive processes to existing knowledge structures. It relies on converging evidence from anecdotal accounts of creativity and tightly controlled laboratory studies designed to examine the processes that are assumed to operate in those anecdotes. Specific examp...

It is inadequate to just assure the functional requirements. Quality of service (QoS) must also be satisfied. An important challenge for developing efficient Service Oriented Architecture (SOA) is to maintain the QoS attributes because of compositional and dynamical environment of SOA. It is significant to scrutinize how quality attributes are supported by SOA. However, implementation of SOA pr...

Recombinant adeno-associated viruses (rAAVs) are a preferred vector system in clinical gene transfer. A fundamental challenge to formulate and deliver rAAVs as stable efficacious vaccines is elucidate interrelationships between the vector’s physicochemical properties biological potency. To this end, we evaluated an rAAV-based coronavirus disease 2019 (COVID-19) vaccine candidate that encodes Sp...

Climate change is causing a shift in long-term weather patterns and altering parameters such as temperature, atmospheric CO 2 , precipitation patterns. It likely to be an indirect effect of greenhouse gases their enhancement the atmosphere largely induced by human activities. As poikilothermic animals, insects are highly dependent on environmental conditions, particularly which affects various ...

Color is commonly described in terms of the three perceptual attributes-hue, saturation, and brightness-of which only hue has a qualitative nature, saturation and brightness being of a quantitative nature. A possible reason for such a phenomenological structure of the color manifold, and its geometric representation, are discussed.

Actions can create preferences, increasing the value ascribed to commodities acquired at greater cost. This behavioural finding has been observed in a variety of species; however, the causal factors underlying the phenomenon are relatively unknown. We sought to develop a behavioural platform to examine the relationship between effort and reinforcer value in mice trained under demanding or lenie...