نتایج جستجو برای: طبقهبندی ژل o15

تعداد نتایج: 6549  

2006
Dwayne Benjamin Loren Brandt John Giles

Inequality and Growth in Rural China: Does Higher Inequality Impede Growth? We explore the relationship between the level of village inequality in 1986, and the subsequent growth of household incomes from 1986 to 1999. Using a detailed householdlevel data set from rural China, we find robust evidence that initial inequality is negatively related to subsequent household income growth. We are abl...

2013
Chunbing Xing Junfu Zhang

The Preference for Larger Cities in China: Evidence from Rural-Urban Migrants China has long aimed to restrict population growth in large cities but encourages growth in small and medium-sized cities. At the same time, various government policies favor large cities. We conjecture that larger cities in China have more urban amenities and a better quality of life. We thus predict that a typical r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1390

گوشدادن به صداها و ارتعاشات تولیدشده ناشی از فعالیت مکانیکی قلب و تفسیر آنها روش متداولی است که در ارزیابی وضعیت سیستم قلبی-عروقی بهکار می رود. از مزایای این روش می توان به آسانی انجام آن، زمان مورد نیاز کم، هزینه پایین و غیرتهاجمیبودن اشاره کرد. اما بهدلیل محدودیتهای شنوایی انسان، ماهیت گذرا و غیرایستان صداهای قلب، و انرژی پایینتر صداهای پاتولوژیک نسبت به صداهای طبیعی یافتن نشانههای بیماری و ت...

Journal: :Journal of Nutrition Education and Behavior 2021

ObjectiveEvaluate the Montana Cook Fresh Leadership Institute (MCF) for K-12 school nutrition staff, offered virtually due to COVID-19 restrictions.Use of Theory or ResearchThe MCF curriculum was developed using a participatory approach from Team Nutrition professionals, and state-level administration include evidence-based materials learning strategies.Target AudienceTwenty-two professionals 9...

2009
Martina Björkman Jakob Svensson

Evidence from recent randomized …eld experiments on community-based monitoring reveals substantial heterogenous treatment e¤ects. Using data from a randomized experiment in primary health in Uganda, we test whether social heterogeneity can explain why some communities managed to push for better health service delivery while others did not. The results suggest that income inequality, and particu...

2011
Philip Stevens

This paper employs the Ordinary Least Squares, Instrumental Variables and Treatment Effect models to a new dataset from the Vietnam Household Living Standards Survey (VHLSS) to estimate return to four-year university education in 2008. Our estimates reveal that income premium of four-year university education is about 97 percent above that of high school education, and robust to the various est...

Journal: :American Economic Journal: Applied Economics 2022

Using a strict, age-specific lockdown order for adults aged 65 and older in Turkey, we examine the mental health consequences of an extended period tight mobility restrictions on senior adults. Adopting regression discontinuity design, find that curfew-induced decline substantially worsened outcomes, including somatic nonsomatic symptoms distress (approximately 0.2 standard deviation). Explorin...

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