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...

T h i s paper i s i n t e n d e d t o d raw a t t e n t i o n t o a l i t e r a t u r e i n P h i l o s o p h y t h a t w o u l d b e o f g r e a t use and i n t e r e s t t o r e s e a r c h e r s a t t e m p t i n g t o s i m u l a t e n o n d e d u c t i v e r e a s o n i n g . Two m o d e l s o f such r e a s o n i n g a r e d i s c u s s e d , and t h e k e r n e l r o l e o f t h e c o n ...

1 I n t r o d u c t i o n E x p e r i m e n t s e m p l o y i n g o r i e n t a t i o n c o n t r o l l e d b i c r y s t a l s h a v e r e v e a l e d d e f o r m a t i o n a n d f r a c t u r e b e h a v i o r o f m a t e r i a l s w i t h s i n g l e b o u n d a r i e s a n d i t s r e l a t i o n t o t h e b o u n d a r y s t r u c t u r e / l 3 / . H o w e v e r , e f f e c t s o f b o u n...

t h e m s e l v e s i n t h e p e r s p e c t i v e o f r e s e a r c h o n t h e o r i g i n s o f s p e e c h , a n d d o n o t a s k t h e q u e s t i o n w h e r e t h e s o u n d s y s t e m t h e y a s s u m e c o m e s f r o m . T o i l l u s t r a t e t h i s p r o c e s s , I w i l l r e d o s o m e s i m u l a t i o n s s i m i l a r t o t h o s e p r e s e n t e d e a r l i e r , b u...

human resource productivity is an important subject in theory and practice, so increase of productivity is the first priority in most of organizations. the main purpose of most organizations is creating value for their shareholders. so it is necessary to understand effect of human resource productivity in achieving this goal and find the obstacles. the purpose of this research is examining the ...

A s a r u l e , t h e w o r t h o f a s p e c i a l i s t b e c o m e s a p p r e h e n s i b l e t o a l l o n l y a f t e r h i s d e a t h , w h e n the a b s e n c e o f h i s p r o f e s s i o n a l k n o w l e d g e m a k e s i t s e l f f e l t . H o w e v e r , L á s z l ó P E L L É R D Y w a s one o f t he s c i e n t i s t w h o s e g r e a t n e s s w a s r e c o g n i z e d and a p ...

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...

in this study, optimized adaptive neuro-fuzzy inference system (oanfis) was employed on a set of daily, weekly, 10-days and monthly data of inflow water into the alavian dam to predict the real-time inflow of the reservoir. sequential and exhaustive search algorithms were used to determine the numbers and time steps of the model inputs and also reducing the prediction’s errors. in sequential se...

a p p r e h e n d s b u t d o e s n o t a p p r e h e n d t h i s s h a p e i n a w a y t h a t i s c o m p l e t e l y i n d e p e n d e n t f r o m m a t e r i a l c o n d i t i o n s . T h e p r o c e s s o f a b s t r a c t i o n i n i n c o m p l e t e s i n c e t h e c a t o n l y k n o w s t h i s s h a p e a s i t c h a r a c t e r i z e s a p a r t i c u l a r o b j e c t a n d n o t i...

introductionurban quality of life is not a simple term that has a clear or an agreed definition but is a complex concept which might be defined by various theories. the term urban quality of life is not used to describe some physical features but to describe all the relationship, the dynamics, and the reticular relationship that exist between those physical features. there fore, the definition ...