نتایج جستجو برای: lack of concentration
تعداد نتایج: 21175937 فیلتر نتایج به سال:
abstract this research is about a longitudinal case study of english morpheme acquisition by a persian speaking child l2 learner of english (2 .9-3).the goal of this research has been discovery of the child ‘s ability in acquiring of english morphemes in a persian context while only one person (the child’ s father)has been talking to her.this child has also been exposed to english languag...
In order to investigate the effect of different levels of Copper (Cu) and Zinc (Zn) on morphological traits of dragon’s head, concentration of Cu, Zn, Fe, Mn, P and K in root and shoot and concentration of Cu and Zn in infusion and decoction, a greenhouse experiment was conducted as factorial based on complete randomized design with three replications. Treatments consisted of three levels of Cu...
how the seeds of delphinium staphisagria promote hair growth in humans is yet to be discovered. this lack of information leads us to the investigation of hair promoting effects of seeds of delphinium staphisagria in vitro. extract prepared from the seed of delphinium staphisagria (esds) - traditionally used for hair loss treatment - was selected and tested for the cytotoxic and angiogenic poten...
this work presents a model for calculating the effective thermal conductivity of nanofluids. the proposed model includes the effects of nanoparticles and thermal conductivity base fluid.we will focus on experimental of the volume concentration parameter and temperature on thermal conductivity, nano-fluid combination and multi-walled carbon nanotubes-oxide / copper-paid deionized water. th...
abstract: proverbs are of the language materials which of the food of any language depends on the quality and quantity of these same materials. in the present research, the researcher tried to present the ramsarian proverbs according to four variables of color, fruit, plantsand animals that selected from the book of the members of each of these four variables, put them into the spss system fo...
Background: Despite the wide range of applications, there is a serious lack of information on the impact of the nanoparticles on human health and the environment. The present study was done to determine the range of dangerous concentrations of iron oxide nanoparticle and their effects on mouse embryonic stem cells. Methods: Iron oxide nanoparticles with less than 20 nanometers diameter were en...
Background and Aim: Antioxidants are compounds that protect cells from attacks of free radicals. Lack of balance between antioxidants and free radicals results in oxidative stress, which ultimately results in cell damage. The effects of flavonoids are not related solely to their antioxidant properties, but also to their effects on cellular signal pathways. The present study was conducted to eva...
Abstract Background & Aim: Oral diseases affect the majority of the population and can affect a person’s overall health. It is reported that punicagranutum contain phytomedicinecapabale of suppressing oral pathogens associated with fungal diseases. The aim of this study is the assessement of punicagranutm extract antifungal activity on Candida albicans. Material and methods: This study was pe...
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