to investigate the effect of nitrogen rate and split form of application on dry matter remobilization among different rice cultivars, a field experiment was carried out in the rice research institute of iran (amol) – during 2005. a split–split experiment on the basis of a randomized complete block design with 3 replications involving 3 factors was employed in which fertilizer rates (100, 150 an...

the aim of the study was to assess the safety of nasal allergen challenge, and the use of certain parameters applied in assessing the condition of the respiratory system. we enrolled 30 patients diagnosed with allergy to common environmental allergens and 30 healthy controls. the safety of nasal challenge tests with an allergen was assessed by measuring the concentration of exhaled nitric oxide...

Three isolates of Newcastle disease virus obtained from normal village chickens, which were never vaccinated against Newcastle disease were characterized. These isolates namely D8, D53 and D58 were found to have an ICPI value of 1.59, 0.50 and 0.14 respectively. The deduced amino acid sequence at the FPCS of these three isolates between positions 112 and 119 were G-R-R-Q-K-R-F-I-G-G-R-R-Q-K-R-F...

Let m(r, k) denote the minimum number of edges in an r-uniform hypergraph that is not k-colorable. We give a new lower bound on m(r, k) for fixed k and large r. Namely, we prove that if k 2, then m(r, k) (k)k(r/ln r) . © 2003 Wiley Periodicals, Inc. Random Struct. Alg., 24: 1–10, 2004

The aim of this study was to determine the probability of working days (PWD) for tillage operation using weather data with Multiple Linear Regression (MLR) and Radial Basis Function (RBF) artificial networks. In both models, seven variables were considered as input parameters, namely minimum, average and maximum temperature, relative humidity, rainfall, wind speed, and evaporation on a daily ba...

Scented rose species are very important in the genus Rosa due to their use in highly-prized essential oil production and as garden roses. The fragrance of the rose flower (attar) captured by extraction is one of the most valuable flavor and fragrance products. A comprehensive study of the papers published in the field of in vitro culture and biotechnology of these species, particularly Damask r...

The Fourier transform is the basic and most powerful tool for studying translation invariant analytic problems, such as constant coefficient PDE on R. It is based on the following simple observation: for ξ ∈ R, the functions vξ(x) = e ix·ξ = e11 · · · enn are joint eigenfunctions of the operators ∂xj , namely for each j, (1) ∂xjvξ = iξjvξ. It would thus be desirable to decompose an ‘arbitrary’ ...