نتایج جستجو برای: heckman two step procedure
تعداد نتایج: 3054477 فیلتر نتایج به سال:
A multi-step procedure for enriching limited two-dimensional acoustic far-field pattern measurements
The relationship between the concentration of sodium cations and properties faujasite(FAU) zeolite was investigated using a two-step synthesis procedure including (1) formation amorphous aluminosilicate precursors separation nanoparticles, (2) transformation these particles into crystals by treatment with alkali solutions(NaOH). Three representative samples two nano-sized zeolites one micron-si...
The Effect of Socio-Economic Situation on Smoking in Urban Households of Iran Mohsen Hasani 1, Bahram Sahabi 1, *, Sajjad Faraji Dizaji 1, Gharaman Abdoli2 1Faculty of Management and Economics, Tarbiat Modares University, Tehran, Iran 2Faculty of Economics, Tehran University, Tehran, Iran Abstract Background: To adopt the best strategies to reduce smoking, identifying the factors that affect ...
the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...
BACKGROUND This paper studies the socioeconomic disparities in self-perceived oral health among Chilean adults and in the perceived physical, functional, psychological and social consequences of oral health. METHODS In February 2011, 1,413 residents of Metropolitan Area of Santiago, Chile, were interviewed using a standardized questionnaire and examined by dentists for dental status and oral ...
cognitive studies of translation process have recently been awarded a great deal of attention. there exists a psychological angle to almost all translation activities. the present study, thus, deals with analysing the relationships between iranian prospective translators tolerance for ambiguity (ta) and their willingness to translate (wtt). the research was conducted as a mixed methods study, d...
ABS methods are direct iterative methods for solving linear systems of equations, where the i-th iteration satisfies the first i equations. Thus, a system of m equations is solved in at most m ABS iterates. In 2004 and 2007, two-step ABS methods were introduced in at most [((m+1))/2] steps to solve full row rank linear systems of equations. These methods consuming less space, are more compress ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید