in this paper, the correlation between total ozone and upper air meteorological parameters such as heights of geopotential surfaces and temperatures for three stations of tehran, ankara and bet dagan located in the middle east, in cold period (jan, feb and march) of years of 2005, 2007 and 2008 has been investigated. data for upper air is taken from wyoming university and ozone data is from sat...

low seed germination and seedling emergence is one of the main problems in saline areas. seed priming technique has been known as a challenge to improve germination and seedling emergence under different environmental stress. the objective of this research was to evaluate the effect of seed priming with gibberellin, nacl and water on seed germination and seed reserve utilization and germination...

introduction climate is a system consisting of atmosphere, lithosphere, cryosphere, hydrosphere, and biosphere. this system is involved in the exchange of energy and moisture among these five components. the exchanges link the atmosphere as the central component of the climate to other spheres. changes do not occur separately in this system; rather change in one component contributes to reactio...

I V C P , I Z F A , N e w m a n C l u b a n d S C A are p l a n n i n g v a r i o u s a c t i v i t i e s f o r t h i s w e e k e n d a n d t h e f o l l o w i n g w e e k . I V C P is h a v i n g , a s g u e s t s p e a k e r , S t e w a r t M e r r i a m f r o m U n i o n C o l lege w h o wil l s p e a k o n " F o r e i g n a n d F a m i l i a r S h o r e s . " M r . M e r r i a m wil l g ive...

drain envelopes play significant roles in the performance of drainage systems due to theirreduction in letting sediments into the drainpipes and also because of an increase in thehydraulic conductivity of soil around the drainpipes. throughout the present research, theeffect of a one 1000 hour flow on dual envelopes consisting of geotextile as a means ofimproving the hydraulic gradient and rice...

B l o o d p r e s s u r e i s t h e f o r c e o f t h e b l o o d p u s h i n g a g a i n s t t h e w a l l s o f t h e a r t e r i e s . T h e h e a r t b e a t s a b o u t 6 0 7 5 t i m e s e a c h m i n u t e , a n d t h e b l o o d p r e s s u r e i s a t i t s g r e a t e s t w h e n t h e h e a r t c o n t r a c t s , p u m p i n g b l o o d i n t o t h e a r t e r i e s . T h i s i s c a...

the mill moth, ephestia kuehniella zeller and indian meal moth, plodia interpunctella (hubner) are two injuriously important pests of stored products worldwide. harobracon hebetor (say) has been used as a biological control agent of moth’s larva in peanut storehouses and as well in packaged cereal products. in the present study, the efficacy of h. hebetor in parasitizing larva of the mill moth ...

y e a r s o f m u s c l e c o n t r a c t i o n h e a d a c h e a c t i v i t y was t e s t e d . T h r e e l e v e l s o f m u s c l e c o n t r a c t i o n h e a d a c h e c h r o n i c i t y (> 20 y e a r s , < 10 y e a r s , a n d n o n e ) w e r e e x a m i n e d u n d e r i m a g i n e d s t r e s s a n d a q u i z f a l s e l y p r e s e n t e d a s a m e a s u r e o f i n t e l l i g e ...

an investigation of chlorophyll quick fluorsence variations was made in the reaserch field of islamic azad university- karaj in 2007. the experimental design was a split plot one in form of a complete randomized block design with 4 replications. drought stress was cosiderded in three levels of 40%, 60%, and 75%, on the basis of depletion of soil moisture as the main factor and the factor of mic...

the effect of arbuscular mycorrhizal fungi and plant growth promoting rhizobacteria, with the ability to produce acc deaminase enzyme, on water relationships and agronomic indices of sunflower (helianthus annuus l.) cultivars was investigated. the soil used was of an ec equal to 7.6 ds m-1. a greenhouse factorial experiment on the basis of a completely randomized block design with three levels ...