نتایج جستجو برای: low and middle income

تعداد نتایج: 16979403  

Journal: :Current Opinion in Infectious Diseases 2013

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

abstract the present study was conducted to examine the effect of proficiency on students interaction while carrying out the grammar-based task(s) in collaboration. in particular, the study examines whether the level of proficiency affects the learners’ focus of attention to grammatical and lexical features. the study takes a further step and examines whether there is any difference in the use...

Numerous investigations demonstrate that the problem of corruption in the health sector is enormous and has grave negative consequences for patients. Nevertheless, the problem of corruption in health systems is far from eminent in the international health policy debate. Hutchinson, Balabanova, and McKee have identifed in their Editorial five reasons why the health policy community has been relu...

Background Childhood vaccination coverage rates in low- and middle-income countries (LMICs) vary significantly, with some countries achieving higher rates than others. Several attempts have been made in Nigeria to achieve universal vaccination coverage but with limited success. This study aimed to analyse strategies used to improve ...

Journal: :اقتصاد و توسعه کشاورزی 0
رضا مقدسی زهرا گلریز ضیائی

abstract this study investigates casual relationship between co2 emission and gross domestic product per capita in five different country groups, using cross- country data for the period 1960-2007. to achieve the purpose, the co- integration test and error correction models are applied. results confirm casual relationships between the two variables. a unilateral relationship between gdp and co2...

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