iran is widely drought prone, considering its semi-arid climate. eleven wheat cultivars differing in yield potential and drought resistance were employed to determine the possible relationship among grain filling rate and duration, stem reserves remobilization and grain yield under either irrigated (ir) or non-irrigated (nir) conditions at gerizeh research station in sanandaj for a duration of ...

a study on the academic motivation and its relation with individual state and academic achievement on basic medical students of urmia university of medical sciences     roshan milan s [1] , aghaii monvar i [2] , kheradmand f [3] , saboory e [4] , mikaili p [5] , masudi s [6] , motazakker m [7] *     received: 29july, 2011 accepted: 28august, 2011     abstract   background & aims : the learning ...

Phosphate (Pi) is a constituent of key molecules such as ATP, nucleic acids, and phospholipids, which play crucial roles in energy transfer, metabolic regulation, and protein activation. Plants have evolved a number of different adaptive strategies to maximize Pi acquisition under Pi-limiting conditions. Many high-afûnity Pi transporter genes are expressed predominantly in roots and are induced...

In this work, a modeling approach is delineated and described in detail; predominantly done in the time domain from low frequency, DC, to high frequencies, 100 MHz. Commercially available computer aided design tools will be used to determine the propagation path in a given structure. Next, an integrated transmission-line filter – fabricated using planar processing technologies – is modeled to a...

Everyday life actions are continuously adjusted to the context and halted promptly when environment requires switch from current action a different one. Action changing/adaptation is multicomponent process that effectively optimizes chaining of sub-actions. This based on control strategies operate continuum, adopting either serial (i.e., task goal activated after previous one has been carried o...

introduction: fao aquacrop model (raes et al., 2009a; steduto et al., 2009) is a user-friendly and practitioner oriented type of model, because it maintains an optimal balance between accuracy, robustness, and simplicity; and it requires a relatively small number of model input parameters. the fao aquacrop model predicts crop productivity, water requirement, and water use efficiency under water...