nowadays, credit risk is recognized as one of the most important bankruptcy factors of banks and financial institutions. in order to manage and control this risk, design of credit rating models is undeniable necessity. credit rating is used to identify the probability of credit default and on the other side classify the customers into two groups: good and bad accounts. until now, various statis...

inhalant anaesthetics are used widely for producing general anaesthesia in animals and humans.. approximately 20% of halothane uptake is metabolised via oxidative and reductive pathways during and following halothane anaesthesia in humans. fifteen clinically healthy dogs were assigned in three groups (group 1, 2and 3) randomly. all dogs were anesthetized with halothane three times that was repe...

in order to investigated the effect of flooding, different nutrition levels an anti-oxidant characteristics, chlorophyll fluorescence, amount of chlorophyll (a, b) and carotenoids leaves soybean (glycine max (l.) merr), cultivar dpx research at the university of agricultural sciences and natural resources, gorgan, in a completely randomized design to factorial arrangement with three replication...

the photocatalytic degradation of nonionic surfactant triton x-100 was studied by a batch process using znocommercial powders as the catalyst on irradiation with uv light and its behaviour comparatively with respect tozno nanoparticles with diameter size 20 nm. the effects of different conditions such as catalyst type, amount ofthe photocatalyst, ph of the system, initial concentration and elec...

a proteomic approach was conducted to further understand the mechanism of plant responses to salinity in hordeum bulbosom. three-week-old seedlings were treated with 300 mm of nacl for 21 days. total proteins of fourth leaf were extracted and separated by two-dimensional gel electrophoresis. more than 500 protein spots were reproducibly detected, including 46 spots that were up-regulated and 16...

drought as a climatic phenomenon affected many different environmental issues and generally is associated with the decreasing in average precipitation. evaluation and monitoring of the drought is a fundamental step in proper programming of water resources management. regarding the recent conditions water scarcity in the urmia lake basin, assessment of the drought index in this region is inevita...

introduction numerous studies have demonstrated the relationship between the amount of co2 in the atmosphere and climate change. in this respect, developed countries have an undeniable role and cause serious damage to earth environment throughout the world. ipcc’ forth evaluation report implies that adding greenhouse gases to the atmosphere during recent decades prevents the heat rays to emit w...

objective: several studies have implicated the 5-httlpr polymorphism in treatment outcomes of selective serotonin re-uptake inhibitors in patients with major depression. the aim of this study was to examine the association between polymorphism in the serotonin transporter gene and citalopram effectiveness in iranian patients suffering from major depressive disorder (mdd). methods: the sample co...

to evaluate symbiotic effectiveness and salt tolerance of sinorhizobium meliloti strains, 50 rhizobial strains were isolated from root nodules of medicago sativa cultivated in tehran and zanjan fields. under n-free conditions, the symbiotic effectiveness of different sinorhizobium meliloti strains of bami cultivar were evaluated under greenhouse conditions using 50 sinorhizobium meliloti strain...

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...