مطالب مرتبط با کلیدواژه
۱.
۲.
۳.
۴.
۵.
۶.
۷.
۸.
form
حوزههای تخصصی:
در این تحقیق مدلی برای آزمون کارایی بازار سهام ارایه شده است. این تحقیق برای سنجش کارایی بورس اوراق بهادار تهران بهکار گرفته شدهاست. به منظور آزمون کارایی بازار سهام تهران، از شبکههای عصبی استفاده میشودکه قادرند روابط و دینامیک موجود در فرآیندهای پیچیده را آموزش ببینند. پس از شرح در مورد تئوریهای موجود در این زمینه با استفاده از شبکه عصبی به شبیه سازی معاملاتی پرداخته شده است. در این تحقیق ارزش روزانه 2 شاخص در بازه مهر 1383 تا اسفند 1385بهکار گرفته شدهاست. نتایج زیادی با بهکارگیری سیستم پیشبینی و معاملاتی بهدست آمده است که در آن از 4 حد آستانه و 4 سطح هزینه معاملاتی استفاده شده است. نتایج نشان میدهد که در اغلب موارد شبکه عصبی توانسته است بازده بالاتری نسبت به روش خرید و نگهداری بهدست آورد. این امر بیانگر آن است که بازار سهام احتمالاً در شکل ضعیف ناکارا است. برای اعتبار سنجی مدل از «آزمون گردش» استفاده شده که نتایج این آزمون نیز یافتههای مدل را تأیید کرد. در نهایت در این تحقیق راهکارهای ارتقاء کارایی بازار سهام ارایه شده است.
بررسی انگیختگی معنایی در زبان فارسی نوشتاری دو مقطع زمانی با فاصله دویست سال (دویست سال پیش و مقطع کنونی)(مقاله علمی وزارت علوم)
حوزههای تخصصی:
انگیختگی به معنی وجود سرنخی در صورت برای رسیدن به معناست؛ چیزی که ما را مستقیما از صورت به معنا رهنمون می شود و این بدان معناست که رابطه صورت و معنا، همواره یا تنها قراردادی نیست یا این که رابطه قراردادی در پاره ای مواقع به رابطه تصویرگونه مبدل می شود. یکی از انواع انگیختگی، انگیختگی معنایی است. واژه هایی انگیختگی معنایی دارند که رابطه معنایی بین اجزای تشکیل دهنده واژه و کل واژه وجود داشته باشد. در زمینه انگیختگی، عده ای بر این باورند که واژگان ابتدایی بشر انگیخته بوده اند و با گذشت زمان و به دلیل تغییرات آوایی و... درجه انگیختگی واژگان کاهش یافته است. در این پژوهش، نگاه عمیق تر و دقیق تری به این پدیده داشته ایم و برای بررسی این فرضیه، با انتخاب چهار متن سفرنامه از زمان حال و استخراج 2800 واژه محتوایی به بررسی انگیختگی معنایی در این متون پرداخته ایم و سپس آنها را با 2800 واژه استخراج شده از چهار متن در دویست سال پیش مقایسه نمودیم تا با بررسی ها و مقایسه های آماری دریابیم که از دویست سال پیش تاکنون، انگیختگی معنایی در بین واژگان زبان فارسی افزون گشته یا کاهش یافته است. مقایسه نتایج حاصل از بررسی این دو دوره نشان می دهد که افزایش معناداری در شمار واژگان دارای انگیختگی معنایی در زمان حال، نسبت به 200 سال پیش به چشم می خورد؛ بنابراین، شاید بتوان ادعا کرد از 200 سال گذشته تاکنون، انگیختگی معنایی در واژگان زبان فارسی افزایش یافته است و از این نقطه نظر، زبان فارسی به سمت شفافیت پیش رفته است و نه تیرگی.
Plato Seeking for “One Real Explanation” in Phaedo(مقاله علمی وزارت علوم)
منبع:
پژوهش های فلسفی پاییز ۱۳۹۷ شماره ۲۴
219 - 240
حوزههای تخصصی:
What this essay is to discuss is Plato''s theory of explanation in Phaedo. In this dialogue, we observe that Socrates criticizes both the natural scientists’ explanations and Anaxagoras’ theory of Mind since he thinks they could not explain all things, firstly, in a unitary and, secondary, in a real way. Thence, we are to call what Plato is seeking as his ideal explanation in Phaedo “One Real Explanation”. He talks at least about three kinds of explanation, two of which, the confused and foolish way of explanation by Forms and the explanation by Forms appealing to essence, are just "second best" and lower degrees of explanation. His ideal explanation is an explanation that can explain all things by one thing and in a real way. Though he cannot show, at least in Phaedo, how this One Real Explanation can work, we can see Plato completing his plan by the Form of the Good in Republic.
Iranian Cities after the Collapse of Sasanian Kingdom: A Case Study of Darabgird(مقاله علمی وزارت علوم)
Darabgird is one of the ancient cities in Fars province. According to Iranian mythology, Darab Shah (Dariush, the Great) found the city in the Achaemenid period. But, due to the fact that 1.21% of total ceramics gathered from the city belongs to the Parthian era, we can accept that the city remained in use since Parthian period to the Islamic era. Data analysis shows that the city had a strong and intensive settlement during Sasanians, After the Arab conquest and the collapse of Pars province, some changes occurred in the function of urban spaces. Accordingly, the main settlement shifted to the north of the city. Apparently, the southern half of the city was abandoned in Islamic era. Finally, according to some other early Islamic cities, apparently in this period, the main settlement of the city shifted to outside of Sasanian city (in this case, north of the Sasanian fortifications) and we should survey this area to discover available evidences of this period. Unfortunately, this area is presently being used for agricultural purposes.
The linguistic and cultural barriers and the proportions of liberty and constraint while translating sacred texts(مقاله علمی وزارت علوم)
The present paper is an attempt to reveal the typical difficulties to which are confronted translators of every sacred text. So, the authors of this research paper try to precise the meaning-form relations which arise from a corpus of the eighteen final surahs of the holy Quran. For this purpose, two translations of the holy book (those of Jacques Berque and Hamidullah), the most attested and credible, have been chosen and studied in this research to determine the tendencies which deform the source text while translating and which leads to different outputs. By this way, the present work will show the impact of the moderation to find out the right way between the fidelity to the form and the loyalty to the meaning.
The Alleys in the Central Business District of Kampala: Uses and Implications for Urban Renewal(مقاله علمی وزارت علوم)
حوزههای تخصصی:
This paper exامینes the structure and form of the Alley spaces in Kampala Central Business District, with purpose to exامینe their uses, and the potential for urban renewal. The study employed multiple methodological approaches and procedures including document review, case study approaches and analysis and deduction of empirical findings, and explanation building. The study findings reveal that alleys in Kampala’s CBD are significant outdoor spaces of linear nature, each with a distinct identity with respect to location, size and quality initially designated for municipal service infrastructure but now taken over by the informal commercial enterprise that sees value of these spaces and from them harnesses a means of survival, henceforth defining their character and quality. The paper concludes that the users most often focus on subspaces of activity concentrations without necessarily noticing the configuration of the whole space. For effective urban renewal to take place and for the alley to perform effectively, it should be perceived not only as a space for movement but also a place of social interaction of a diverse urban population.
The Impact of Task-based Online Planning on EFL Learners’ Performance and Attention Shift
منبع:
Journal of Foreign Language Teaching and Translation Studies, Vol. ۶, No. ۱, Winter ۲۰۲۱
97 - 112
حوزههای تخصصی:
Research findings reported to date indicate that carefully planning speech while performing a task increases second language (L2) learners’ attention to formal aspects of their discourse. The evidence, however, is mostly based on performance analysis with respect to the linguistic measures of complexity, accuracy, and fluency. To enhance the psycholinguistic validity of current findings, the present research adopted a process-product approach to analyze L2 learners’ performance and attention shift as indicated by the occurrence of pauses in their speech. The study involved thirty Iranian learners of English as a foreign language (EFL) who were divided into two groups of fifteen. Whereas participants in the first group were given unlimited time to carefully plan while performing a narrative task, their counterparts in the other group completed the same task under time constraint. Following participants’ performance, both performance analysis and retrospective interviews were conducted to collect their protocol data. The results revealed that carefully planned speech is characterized by increased complexity and accuracy and reduced fluency stemming from attention being primarily focused on syntactic encoding, lexical choice, and phonology instead of conceptualizing the message. The outcomes are discussed in light of their theoretical and pedagogical implications.
Hegel’s understanding of God and Idea as Platonic interpretation of the 19th century?(مقاله علمی وزارت علوم)
منبع:
تأملات فلسفی سال ۱۵ بهار و تابستان ۱۴۰۴ شماره ۳۴
35 - 46
حوزههای تخصصی:
Hegel uses a Platonic terminology, though in German, to explain his understanding of God in philosophy. As such, it is of interest, whether the usage of the terms rather describes a 19th century reading of Plato or whether it explains a unique understanding of God. The author argues that Hegel’s explanation of God as Geist is Platonic because, for Plato, reason is ultimately connected to the Divine; thus, the logistikon possesses a spiritual dimension. On the other hand, Hegel derives the divine attributes from the Bible where God is described as the logos. By combining these two teachings, Hegel uniquely emphasizes the special importance of reason as a reference point to reality. The Biblical-Platonic notion of reason as appearance in the finite which can never be dissolved or distinguished from reason in the infinite is brought to light in Hegel’s philosophy.