نتایج جستجو برای: had a negative effect
تعداد نتایج: 14046253 فیلتر نتایج به سال:
to evaluate the effects of mycorrhiza symbiosis in increased tolerance to drought stress in wheat (triticum aestivum) an outdoor greenhouse experiment was conducted at islamic azad university, sabzevar branch in 2012-2013. experiment was conducted as factorial arrangement in a randomized complete block design with three replications. factors were: mycorrhiza fungi type (glomus mosseae, glomus i...
Background and purpose: Osteoporosis is a silent disease which is causing death of significant population due to bone fractures. Use of natural supplements is considered with respect to side effects of chemical drugs. In this study, the effect of sargassum algae on osteoporosis disease was investigated. Method: The study was done on 80 mice heads of NMRI race. After osteoporosis induction, t...
This study examined associations between mother-infant nighttime interactions and mother-infant attachment when infants were 12 months old. Forty-four mother-infant pairs participated in this study. For three consecutive nights at home, babies were observed in their cribs using a digital video system. Mothers reported on their nighttime interactions with their babies using a self-report diary a...
the purpose of this study was to investigate the relationship between conflict type (task, relation), conflict management approach (cooperative, competitive) and team effectiveness of iranian super league volleyball clubs. the sample consisted of all players and coaches of 13 teams from 16th tournament of super league volleyball clubs in 2007 were selected. jhen conflict type questionnaire, tjo...
this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...
Background: Despite the large number of studies conducted on breastfeeding, no studies have yet examined the direct and indirect effects of socio-personal factors and mental health on breastfeeding. Aim: This study aimed to analyze of the effects of mental health and socio-personal factors on breastfeeding in infants aged less than six months. Method: This analytical cross-sectional study was c...
Objective: The present study aimed at investigating the causal relationship between parenting styles, attachment styles, and self-regulation among drug dependent individuals in Urmia city. Method: In this correlational/ descriptive research, the number of 449 addicts was chosen through multi-stage cluster sampling method from among the addicts who had referred to addiction treatment clinics in ...
the current study aims to investigate the effective factors on brand equity with an enphasis on monetary and non-monetary promotion and corporate image among students of shahid beheshti university. evaluation of variables was conducted by means of questionnaire. after determining reliability and validity, the questionnaire was distributed among the samples including 344 students of shahid behe...
carbon disulfide is used predominantly in the manufacture. it has affects the nervous system. in this study, the applicability of spme as a passive sampler for determination of carbon disulphide in air was studied. effect of sampler and environmental parameters on uptake of carbon disulphide was studied as well. four fibers were tested to select the best sampler for determine carbon disulfide i...
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