abstract statistical methods are one of the useful tools for climatic elements and their behaviors analysis, as well as, modeling and predicting them subtly. in this paper the behavior of time series of annual temperature of zanjan during 1956-2005 have been studied. so, based on autocorrelation, correlation coefficient, and spearman and mann - kendall ways, the data trend was determined. the a...

in order to evaluate the efficiency of empirical competition models for simulation of sugar beet (beta vulgaris l.) yield at interference with redroot pigweed (amaranthus retroflexus l.), a factorial experiment based on randomized complete block design with three replications was carried out. factors were weed densities (d1=1, d2= 4, d3= 8, d4=12 and d5=16 plants m-1 of row) and relative time o...

the purpose of this study was to investigate the effect of perceptual – motor experience on motor development quotient of fine and gross motor skills in infants. fifteen 5-8-month-old healthy infants participated randomly in this study and were divided homogenously into two groups (experimental and control) according to their age. experimental group had 36 training sessions, each session an hou...

effect of foliar spraying by humic acid on mineral leaf composition, yield and fruit quality of apple (malus domestica l. cv. ‘granny smith’) was studied. an experiment based on randomized complete design was conducted in khorramdare city of zanjan province. spraying of humic acid was conducted in four levels 0, 5, 10 and 15 mg/l on eight year-old ‘granny smith’ apples grafted on mm106 rootstoc...

in this study, effect of slope on soil wetting pattern under surface drip irrigation and simulation with hydrus-2d model evaluated.the physical model made of plexiglas to size 83, 6 and 54 cm (length, width, height) filled with silty clay loam soil was used. to achieve the desired discharge, a small drip irrigation system created that includes a water tank with a fixed height (about 2 meters), ...

consequences of divorce, specially the negative ones, affect different sectors of society generally and become specifically important in gender development analysis and social policy, because of their especial influence on women’s lives. this article reviews the previous studies and published literature on after-effects of divorce in iran in a period between 1997 and 2011. based on an initial s...

the present study was carried out to determine the effects of fish oil long-chain fatty acids and thyme essence supplementation on performance and carcass traits in mahabadi goat kids. twenty-eight mahabadi goat kids (average initial bw of 17/8 ± 2/8 kg, 4-5mo) were randomly assigned to four treatments of: 1. control (basal diet), 2. 0.2% thyme essence, 3. 2% fish oil, and 4. 2% fish oil +0.2% ...

milk-based dairy desserts have important role in human diet because of their nutritional values. the aims of this study were to investigate the effect of hull-less barley malt flour and gelatin adding on different aspects of dairy dessert with the goal of increasing nutritional value and quality parameters. desserts were prepared by different gelatin concentration (0, 0.5, 1.0, 1.5 and 2%) and ...

background and purpose: shiraz university of medical sciences as one of the oldest and largest universities of medicine in iran with 50 years history has more than 450 faculty members and 5000 students. this study is an attempt to find out the level of job satisfaction among shiraz university of medical sciences’ faculty members. methods: in midterm of 2003-2004, data on job satisfaction level ...

urmia lake is the largest lake in the country which during recent years faces a dramatic reduction in the water level. many reasons such as climate change, continuous droughts, development of cultivation and land use changes as well as construction of dams were mentioned, but the provided reasons have less been well documented by scientific evidences. this study is an attempt to investigate the...