نتایج جستجو برای: f22

تعداد نتایج: 339  

2012
Giovanni Facchini Cecilia Testa Lou Dobbs

Despite restrictive migration policies, large numbers of undocumented migrants reside in many destination countries. If official migration targets are not enforced, why are they devised? To address this puzzle, we develop a political agency model with uncertainty about the supply of migrants, where an elected official can either have preferences congruent with the majority of his electorate, or...

2013
William Betz Nicole B Simpson

© A m Abstract: Very little is understood about how immigrants affect the happiness, or subjective well-being of natives. We use the European Social Survey to analyze the effects of aggregate immigration flows on the subjective well-being of native-born populations in a panel of 26 countries between 2002 and 2010. We find that recent immigrant flows have a nonlinear, yet overall positive impact...

2002
Thomas Krichel Paul Levine

European Union enlargement and the commitment to the free movement of labour within the Union raises the possibility of a substantial East-West wave of migration. This paper addresses three separate issues: first, the economic impact on host and donor countries of migration from a less developed Eastern region to more developed Western region. Here there are, in turn, two aspects: the short-run...

2007
Jan Brenner

The existing literature on attitudes towards immigration has not accounted for the potential effect of unobservable home education on attitude formation. Yet, factors such as parents’ knowledge, their morals, and their weltanschauung are likely to influence the attitudes of the next generation. Their omission from the analysis thus threatens to lead to erroneous conclusions. Utilizing siblings ...

2007
Klaus F. Zimmermann

Migrant Ethnic Identity: Concept and Policy Implications With globalization, the size of migration and the value of ethnicity is rising. Also Cyprus undergoes a strong process of change while experiencing large inflows of migration. The paper investigates the challenges and the potentials of migration from a European Union perspective. It advocates for a new concept to measure the ethnic identi...

2010
Garfield O. Blake

Changes in US Immigration laws that occurred during the mid 1980s to the late 1990s led to a sharp increase in criminal deportations. Using panel data for a sample of 38 developed and developing countries, I provide evidence for a statistically significantly positive causal relationship between increases in the numbers of criminal deportees and increases in intentional homicide rates. The magni...

2013
William R. Kerr

This study tests the importance of Ricardian technology differences for international trade. The empirical analysis has three comparative advantages: including emerging and advanced economies, isolating panel variation regarding the link between productivity and exports, and exploiting heterogeneous technology diffusion from immigrant communities in the United States for identification. The lat...

2012
William F. Lincoln William R. Kerr Prachi Mishra

How is economic policy made? In this paper we study a key determinant of the answer to the question: lobbying by firms. Estimating a binary choice model of firm behavior, we find significant evidence for the idea that barriers to entry induce persistence in lobbying. The existence of these costs is further confirmed in studying how firms responded to a particular policy change: the expiration o...

2009
Ralitza Dimova Gil S. Epstein Ira N. Gang

Migration, Transfers and Child Labor We examine agricultural child labor in the context of emigration, transfers, and the ability to hire outside labor. We start by developing a theoretical background based on Basu and Van, (1998), Basu, (1999) and Epstein and Kahana (2008) and show how hiring labor from outside the household and transfers to the household might induce a reduction in children’s...

ژورنال: :مجله دانشگاه علوم پزشکی مازندران 0
مجید سعیدی m saeedi استادیار گروه فارماسیوتیکس، دانشکده داروسازی، دانشگاه علوم پزشکی مازندران محمد آزادبخت m âzadbakht کتایون مرتضی سمنانی k semnani منیژه خندان m khandan

سابقه و هدف: بسیاری از گیاهان با مواد مشتق شده از آنها در خمیر دندان های تجاری جهت برطرف نمودن عوارض دهانی به کار می روند. بابونه، گیاهی با اثرات التیام بخش، ضد باکتری و ضد قارچ می باشد و در مصارف موضعی جهت رفع درد کاربرد دارد. گیاه میر نیز به عنوان آنتی سپتیک، ضد قارچ و ضد التهاب به کار می رود. تنتور الئوگوم رزین این گیاه به عنوان قابض غشاهای مخاطی در غرغره ها و دهات شویه ها جهت رفع التهابات ح...

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