درخت حوزه‌های تخصصی

Grounded in sociocultural theory (SCT), this study explored whether the hypothesized difference in task-induced involvement could affect the actual realization of evaluation, one of the cognitive dimensions of the Involvement Load Hypothesis (ILH). A group of 24 Iranian EFL learners participated in the study. They were paired up to write a composition including ten unknown words in the first session and then completed a cloze task with another set of ten new words in the second one. Collaborative dialogues in both sessions were audio-recorded, transcribed verbatim and micro-genetically analyzed to trace how the value of hypothesized evaluation could affect the manifestation of evaluation during collaborative dialogues. In line with the tenets of ILH, the results of the micro-genetic analysis demonstrated that using target words in the composition task could induce a higher degree of evaluation than using them in the cloze task. In light of the findings, researchers are suggested to look at issues from different standpoints rather than restricting themselves to one single theoretical perspective.

Earnings management has a negative effect on earnings quality and it may weaken validity of financial reports. The main focus of researches about earnings management is why companies manipulate earnings. Pricing power of companies can potentially affect earnings management. Since the relation between product pricing power and earnings management has not been studied in Tehran Stock Exchange, this research tries to find a relation between product pricing power and earnings management and a relation between existing competition in industries and earnings management in Tehran Stock Exchange. The results show that there is not a significant relation between pricing power and earnings management. This is due to the mandatory nature of rules and regulations of product pricing in many internal industries. Also, those companies in more competitive industries may manage earnings in order to limit their competitors in obtaining precise information. The results of the present research show that there is a significant relation between existing competition of industries and earnings management in industries such as vehicle & parts, cement, gypsum & lime, chemicals, main metals, tile & ceramic, machinery & equipment, and pharmaceuticals. On the other hand, the results from the research model indicate no direct relation between the competitive pressure and earnings management.

Purpose: Low back pain is one of the most common health problems of the world. Very different causes can cause back pain. Approximately 85% of people who are examined for low back pain the cause is not specific. The purpose of this study is to investigate the effects of the knee abnormalities on pain intensity and functional fitness in middle aged men with the chronic nonspecific low back pain. Method: The statistical community of this study includes 30 people of patient’s male with nonspecific chronic low back pain in the age range of 30-50 years with one of the abnormalities of genu varum or genu valgum. Results: The research findings were analyzed using descriptive and inferential statistical methods (dependent t and independent t tests). The research findings indicate that both the pain and disability of the experimental groups have significantly decreased after applying selected of corrective programs (Stretching muscles and short elements and strengthening weakened muscles). Sitting frog, walking with the inner edges of the legs, pressure to enter the wall with the outer edges of the legs to modify the genu varum. passing legs from one side to another in the form of scissors in liner mode, passing the medicine ball to the wall with the inside of the legs, walking with the outer edges of the legs to modify the genu valgum (p<0.05). While the two variables in the control group did not differ significantly (p>0.05). Conclusions: According to the results and considering the conditions prevailing on the research samples, it can be concluded that knee abnormalities (genu varum and genu valgum) affected by pain intensity and functional fitness efficacy in nonspecific chronic low back pain patients and Corrective exercises of these abnormalities has had a significant effect on reduce pain and disability index.