calla lily, an ornamental bulbous plant from araceae family (consisting of seven species) is characterized by spadix inflorescence and utilized for cut flower as well as for pot plant. a greenhouse study was conducted in university college of agriculture and nature resources of tehran university, to evaluate the quantitative and qualitative characteristics of pot plant of calla lily. the type o...

A n i n s t r u m e n t is d e s c r i b e d w h i c h p e r m i t s t h e m e a s u r e m e n t o f t h e q u a l i t y o f X r a y s i n t e r m s o f t h e h a l f v a l u e l a y e r ( H V L ) o f a s u i t a b l e f i l t e r m a t e r i a l . I t c o n s i s t s o f t w o i o n i z a t i o n c h a m b e r s a d j u s t a b l e i n v o l u m e , w h i c h a r e c o n n e c t e d i n o p p ...

l a r u t c u r t S h t l a e h g n i r o t i n o m H S ( M) h c e t i n qu s e h e v a t a r t i d i a n o l l y n e e b p p a li d e o t , l a c i n a h c e m , e c a p s o r e a d n a l i v i c s e r u t c u r t s o t n e d i t y f i o l g n i d a and a d m e g a a p ts n r e t . , r e v e w o H n a m u h s r o t a r e p o n i e h t p o o l n a y a l p t n a t r o p m i e l o r n i e h t l ...

gypsum found in the soil beneath the foundation of structures, specially hydraulic structures, can cause serious damage to them. the mechanical behavior of gypsiferous soils has not so far been investigated in detail except for the works of petrukhin (1993). here, it has been tried to investigate the mechanical behavior and the effect of soil being leached on settlement and strength of these ki...

soil compaction is one of the most prevailed limitations for crop growth. the use of organic matters as fertilizer on agricultural soils can reduce the effects of soil compaction and provide the nutrients for the plants. so, a factorial experiment was carried out in a randomized complete blocks design with three replications. the first factor was the source and amount of organic fertilizer (far...

introduction the main challenge for health in twenty century was survival, but in the new century the life with a better quality is an important matter. aging is an emotion period in human life and attention to needs in this period is a social necessity. therefore, attention to the quality of life of elders is very important in the social policy. the number of the elderly is increasing across t...

the aim of this study was to investigate the effect of adding different levels of zinc sulfate in semen extender on bovine sperm quality during cryopreservation. semen was collected from 4 holstein bull twice a week and the proper samples were pooled. semen were allocated to four extender treatments consisted of 0, 50, 100, 150 µm of zinc sulfate in 5 replicates and then, were frozen. post-thaw...

glutamate as one of the most important neurotransmitter in the brain has a significant role in control of foodintake. this study examined the central effect of chicago sky blue 6b (csb6 ) as glutamate vesicular uptake inhibitor, on food and water intake in broilers. after icv injection of csb6 cumulative food and water intake were measured in 15,30,60,120 and 180 minutes. csb6 increased food in...

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 ...

abstract: the first period of abbasi dynasty is one of the glorious periods of islamic culture and civilization, which is known as the golden era of islamic culture and civilization. because in this era the power and riches of abbasi dynasty increased so high that led the islamic civilization grow in the various fields of science, literature and art especially music. while pretending as firm re...