How do taxes affect human capital accumulation? This question has been studied extensively in the context of two model classes: overlapping generations (OLG) and infinite horizon (IH) models. These embody very different assumptions about the intergenerational transmission of physical and human capital. OLG models typically abstract from intergenerational linkages, while IH models implicitly ass...

B-cell CLL/lymphoma 11B (Bcl11b) - a C2H2 zinc finger transcriptional factor - is known to regulate neuronal differentiation and function in the development of the central nervous system (CNS). Although its expression is reduced during oligodendrocyte (OLG) differentiation, its biological role in OLGs remains unknown. In this study, we found that the downregulation of Bcl11b gene expression in ...

In this paper, we consider the local uniqueness properties of stationary rational expectations equilibria (REE) in a stochastic overlapping generations (OLG) model. It is known that in non-stochastic OLG models, steady-state equilibria are locally isolated, although there may exist indeterminate non-stationary perfect foresight equilibria. We show by construction that in the stochastic model, e...

This paper develops a decomposition algorithm by which a market economy with many households may be solved through the computation of equilibria for a sequence of representative agent economies. The paper examines local and global convergence properties of the sequential recalibration (SR) algorithm. SR is then demonstrated to efficiently solve AuerbachKotlikoff OLG models with a large number o...

In the central nervous system, the extracellular matrix (ECM) compound laminin-2, present on developing axons, is essential in regulating oligodendrocyte (OLG) maturation. For example, laminin-2 is involved in mediating interactions between integrins and growth factors, initially localizing in separate membrane microdomains. The galactosphingolipid sulfatide is an important constituent of these...

Ceramide is a lipid mediator implicated in apoptosis induced by proinflammatory cytokines in many cell types, including oligodendrocytes (OLGs). To determine whether ceramide modulates transmembrane signaling events in OLGs, we studied its effect on intracellular Ca2+ (Cai), resting membrane potential and inwardly rectifying K+ currents (IKir) in cultured neonatal rat OLGs. We report here that ...

How do taxes affect human capital accumulation? This question has been studied extensively in the context of two model classes: overlapping generations (OLG) and infinite horizon (IH) models. These embody very different assumptions about the intergenerational transmission of physical and human capital. OLG models typically abstract from intergenerational linkages, while IH models implicitly ass...

هدف: در قرن 21 رسالت دانشگاه، تربیت نیروی انسانی و نسل آینده‌ای متعهد، مبتکر کارآفرین است بنابراین ایجاد تفکر کارآفرینی ورود به کسب‌ وکار میان دانش‌آموختگان دانشگاهی باعث می‌شود که آنها با بهره‌گیری از استعدادهای بالقوه خود، افرادی خلاق، نوآور شوند خود را باور نمایند. هدف مطالعه حاضر، طراحی الگوی دانشگاه رویکرد سازمانی آموزش عالی بود.طراحی/ روش‌شناسی/ رویکرد: این پژوهش نظر کاربردی-توسعه‌ای، ماه...

سابقه و هدف: سلامت خاک از مولفه ‏های اصلی در دستیابی به سامانه ‏‏های کشاورزی پایدار بوده که شدت تحت تاثیر عملیات زراعی مانند خاکورزی قرار می ‏گیرد. را توان با استفاده پارامترهای فیزیکی، شیمیایی بیولوژیکی قالب الگوریتم‏ های مشخص کمّی کرد. نتیجه، بررسی وضعیت کیفی باروری مدیریتی مختلف زمین جهت استقرار مناسب برای تولید بهینه نظام‌های امری ضروری می‏ باشد. چارچوب ارزیابی مدیریت SMAF 1 عنوان ابزاری قدر...