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This study uses " Multiple Indicators â Multiple Causes" (MIMIC) approach to model the causal relations between main variables, which determine the underground economy in Iran. we Basically, it examines the relationship between underground and official GDP in Iran, using annual time-series data for Iran during 1965 â 2005. Accordingly, it is found that the estimated size of the underground ...
学習支援システムは、参加者に様々タイプのサポートを提供する。 仮説:高レベルサポートは参加者の問題解決目標への方向付けを活性化させるが、学習目標達成の優先度を低下させ る。高い問題解決成績が得られるが、学習効果は低い。 素材にハノイの塔のパズルと自然演繹課題を用いた実験で、仮説は支持された。 Introduction l 最近では、認知科学の理論に基づくインタラクティブな学習支援システムが開発されている Ø インタラクションでは、学習支援システムと学習者のデザインや、学習者へのフィードバックが中心的な問 題点である l アシスタントジレンマ Ø 「支援をするのとしないのとで、ベストな学習を達成するには学習環境のバランスはどうしたらよいか」 (Koedinger and Aleven,2007) Ø 手厚い支援:成功への手がかりを提供し学習を向上させるが、生徒がよく考えること...
O artigo examina a produção, percepção e avaliação linguística do apagamento variável de /R/ em coda silábica no português Porto Alegre (RS) (mulhe[ɾ]~mulhe[Ø], po[r]que ~ po[Ø]que, dirigi[r] dirigi[Ø]) com base na Teoria da Variação (LABOV, 2008) teorias percepção, atitude (LAMBERT et al., 1960, GILES; BILLINGS, 2004, PRESTON, 2003, ECKERT, 2005, 2008). A revisão estudos anteriores (CALLOU; LE...
ø مقدمه: مطالعات نشان داده اند که ممکن است بین میزان کروم موجود در بدن و ریسک فاکتورهای بیماری دیابت ارتباطی وجود داشته باشد. هدف از مطالعه حاضر بررسی ارتباط بین دریافت غذایی و سطح سرمی کروم با اجزای لیپیدی، hba1c و گلوکز سرمی در افراد مبتلا به دیابت نوع دو می باشد ø مواد و روش ها: این مطالعه بر روی 30 بیمار60- 30 سال مبتلا به دیابت نوع دو (15 زن و 15 مرد) و 30 فرد سالم (15 زن و 15 مرد) صورت گر...
Pultrusion is a rapid and cost-effective manufacturing technology for continuous fibre reinforced thermoplastic composite profiles. As the cross-sections of pultruded profiles grow to meet increasing performance requirements, challenges concerning heat transfer are encountered. In this study, two-dimensional finite element model was used simulate fluid flow physics pultrusion process diameters ...
The range of 3 ø by 3 ø regional slopes of the earth and Venus is similar (approximately 0.0ø-2.4ø); however, the surface distribution of these values differs significantly. On earth, cratonic and abyssal plains form extensive regions of 0.0 ø slope. Within these regions a variety of features (mid-ocean ridges, volcanic island chains, subduction zones, and folded mountains) have regional slope ...
Respiratory syncytial virus (RSV) is a significant cause of severe respiratory illness worldwide, particularly in infants, young children, and the elderly. Although no licensed vaccine is currently available, an engineered version of the metastable RSV fusion (F) surface glycoprotein-stabilized in the pre-fusion (pre-F) conformation by "DS-Cav1" mutations-elicits high titer RSV-neutralizing res...
T cell immunoglobulin and mucin domain-containing protein 3 (Tim-3) is a newly identified negative immunomodulator that is up-regulated on dysfunctional T cells during viral infections. The expression and function of Tim-3 on human innate immune responses during HCV infection, however, remains poorly characterized. In this study, we report that Tim-3 is constitutively expressed on human resting...
Introduction The word governance comes from the Greek word 'kubernan' which means to stir. The modern definition includes state and political institutions, their checks and balances, the rule of law and the delivery systems for the provision of public services as a core activity of the state. The GDN Global Research Project titled Varieties of Governance: Effective Public Service Delivery explo...
Human monocytes/macrophages (M/M(Ф)) of the innate immunity sense and respond to microbial products via specific receptor coupling with stimulatory (such as TLR) and inhibitory (such as Tim-3) receptors. Current models imply that Tim-3 expression on M/M(Ø) can deliver negative signaling to TLR-mediated IL-12 expression through trans association with its ligand Galectin-9 (Gal-9) presented by ot...
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