نتایج جستجو برای: control received no treatment
تعداد نتایج: 5330005 فیلتر نتایج به سال:
126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...
effect of rosa aromatherapy on anxiety before cardiac catheterization: a randomized controlled trial
background and objectives: most patients experience moderate to severe anxiety before cardiac catheterization. this study aimed to investigate the effect of rosa aromatherapy on anxiety before cardiac catheterization. methods: in this randomized controlled trial, 60 patients who met the inclusion criteria were conveniently sampled and randomly allocated to the experimental and control groups. p...
this study investigated (a) the learners’ existing reading strategy repertoire, (b) the effect of instruction in reading strategies on learners’ strategic performance, and (c) the effect of explicit instruction in top-down reading strategies on reading comprehension ability of intermediate learners. the study was conducted with 40 intermediate efl learners in two groups of experimental and cont...
abstract listening is a key and main tool in second language skill and its development is of prime concern to teachers and learners. furthermore, the application of technology in language classrooms has become more commonplace in the last fifty years. computer and the internet have made foreign language materials easy to access and use. so, the present study is an attempt to examine the effec...
introcduction: pigmented villonodular synovitis (pvs) is rare, benign and proliferative disorder of synovium which consists of villous and/ or nodular formations in joints.diagnosis is determined by clinical features, aspiration of the joint, radiographic features and magnetic resonance imaging (mri).the definitive treatment is the complete resection of affected tissue by open or arthroscopic s...
background: migraine is a neurovascular disorder and any interventions improving endothelial function may contribute to its treatment and prevention of vascular complications like ischemic stroke. yoga has been shown to have several beneficial effects on cardiovascular systems. however, no randomized controlled studies to date have investigated its effects on endothelial function of migraineurs...
Background. Physical education learning in the era of the COVID-19 pandemic has a remarkable impact on students’ creativity. Objectives. This study aims to determine the effect of applying the inquiry and discovery models in online physical education learning to develop high school students’ creativity. Methods. The multiple treatment and control with the pre and post-test procedure were used...
Objectives: The present research has been carried out to investigate the effectiveness of group mindfulness-based cognitive therapy on modification of body image and quality of life in women with breast cancer undergoing mastectomy. Materials: This research is a quasi-experimental study (pretest-posttest with control). In this clinical trial, 50 voluntary patients who had undergone maste...
the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...
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