zagros forests are a treasure of various valuable species of oak in iran and the world. long-term misuse in the past has caused severe degradation in the zagros forests. recently these forests have become national but misuses by local people to make living because of poverty and unemployment are continued. in order to reduce degradation and improve sustainability, ecological capability for exte...

earthworms are an important part of food chain in soil ecosystem. in polluted soils, heavy metals are consumed by earthworms and transferred to other organisms through food chain, resulting in many adverse health impacts. due to the benefits of earthworms for soil fertility, it is important to assess the effects of soil pollution on population, biomass and functions of earthworms. to determine ...

decreasing water loss and increasing the irrigation times are basic methods to develop agriculture, success in natural recourse projects, minimize the stress to planted bushes in natural fields and increase the productivity of soil and water sources. the use of super absorbent is one of these strategies to achieve these goals. the main purpose of this research was to study the effect of super a...

o b e c o m e f u l l y l i t e r a t e i n t o d a y ’ s world, students must become proficient i n t h e n e w l i t e r a c i e s o f 2 1 s t c e n t u ry technologies. As a result, literacy e d u c a t o r s h a v e a r e s p o n s i b i l i t y t o e f f e c tively integrate these new technologies i n t o t h e c u r r i c u l u m , p r e p a r i n g s t u d e n t s for...

CO L L E G E L I B R A R I A N S c a n n o t d e p e n d u p o n p r o f e s s i o n a l l i b r a r y l i t e r a t u r e a l o n e f o r b u i l d i n g u p t h e i r b o o k c o l l e c t i o n s . T h e f a c u l t i e s o f c o l l e g e s a n d u n i v e r s i t i e s p l a y a n i m p o r t a n t r o l e i n t h e s e l e c t i o n o f b o o k s f o r t h e c o l l e g e l i b r a r y a ...

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...

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...

artemisia annua is a medicinal annual herb that widely distributed in asia, europ, north america, and also is grown in north reagions of iran. in this study, variation in the quantity and quality of the essential oil of a.annua apical shoots at different developmental stages including vegetative, early flower opening and full flowering stages is reported. the obtained oils by hydrodistilation o...

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 ...

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...