مطالب مرتبط با کلیدواژه

projection


۱.

مقاله به زبان انگلیسی: بررسی جملات مرکب در چکیده مقالات پژوهشی نویسندگان انگلیسی و غیرانگلیسی زبان رشته زبان شناسی کاربردی: درجه وابستگی، تفصیل و نقل قول (Clause Complexity in Applied Linguistics Research Article Abstracts by Native and Non-Native English Writers: Taxis, Expansion and Projection)(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Systemic functional linguistics research article abstracts clause complex taxis expansion projection

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تعداد بازدید : ۹۱۳ تعداد دانلود : ۵۳۱
Halliday’s Systemic Functional Linguistics (SFL) has stood the test of time as a model of text analysis. The present literature contains a plethora of studies that while taking the ‘clause’ as a unit of analysis have put into investigation the metafunctions in research articles of a single field of study or those of various fields in comparison. Although ‘clause complex’ is another unit of SF analysis, by far there has been only one study on research articles where it was the unit of analysis (Sellami Baklouti, 2011). Therefore, the purpose of this study was to put into analysis the ‘taxis’, ‘expansion’ and ‘projection’ deployed in Applied Linguistics research article abstracts (RAAs) by native (N) and non-native (NN) writers. To this end, 20 Applied Linguistics RAAs (10 by N English writers and 10 by NN English writers on the sub-fields of Discourse Analysis and Language Assessment) were analyzed according to Halliday & Matthiessen’s (2013) ‘clause complex’ framework. The results indicated that there is a significant difference in the use of ‘projection’ by Ns and NNs, while the distribution of ‘taxis’ and ‘expansion’ is the same. The findings also showed what types of ‘taxis’, ‘expansion’ and ‘projection’ were deployed by Ns and NNs
۲.

An Econometric Model-Based Projection of Nigeria’s Rice Self-Sufficiency(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Autoregressive distributed lag elasticities projection Rice Self-Sufficiency

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Motivated by Nigeria’s persistent pursuit of rice self-sufficiency, this paper projects the country's future rice self-sufficiency levels. These projections could guide policy decisions in areas of the rice market that show potential for growth, aiding in the achievement of Nigeria's goal through improved planning strategies. Using time series data covering the period from 1980 to 2018, this study adopted an econometric technique to model Nigeria's rice market which was estimated using a dynamic Autoregressive Distributed Lag (ARDL) approach. The results revealed that paddy producer price elasticity was 0.206 and had no influence on paddy area harvested. On the other hand, the national policy of rice credit guarantee scheme variable displayed a positive relationship with paddy area harvested. Lagged yield and lagged area harvested had positive influences on yield and area harvested, respectively. This could mean that paddy producers were motivated by previous year’s yield levels and area harvested. The demand own-price elasticity of rice was -0.321 and its cross-price elasticity was 0.193, with wheat revealed to be a substitute. The obtained elasticities were then used to make a ten-year projection. Results suggested that by 2028, increasing rice production relative to dwindling imports will boost rice self-sufficiency level to 71%. However, the average yearly rice self-sufficiency level was 53%, requiring 3.85 million Mt of rice imports. The projections revealed that Nigeria will not achieve rice self-sufficiency by 2028 unless intensive yield enhancing policy-supporting efforts are pursued.