نتایج جستجو برای: طبقهبندی ژل l25
تعداد نتایج: 6270 فیلتر نتایج به سال:
This paper employs a matched firm production-innovation panel dataset from Chile to explore the response of innovation increased competition arising China shock. The data cover wider range inputs and outputs than previously possible allow generating measures markups efficiency (TFPQ) that correspond closely concepts rents technological leadership envisaged in Schumpeterian literature. Except fo...
We examine the impact of small firms’ external growth strategy on their performance using unique data all French firms that went public between 2006 and 2014. Using a difference-in-differences approach, we find conducting acquisitions experience higher profitability than relying other modes. However, observe no effect sales growth. The results are robust to different robustness checks, includin...
BACKGROUND Dendritic cells (DC) are the most potent antigen-presenting cells (APC) and stimulators of T cells. Dendritic cells are also likely to be essential for the initiation of allergic immune responses in the lung. However, there are not many data on the presence of dendritic cells in the airways of patients with atopic asthma and on the effects of corticosteroid-treatment on such dendriti...
We implement a lab-in-the-field experiment with 334 Turkish loan officers to document gender discrimination in small business lending and unpack mechanisms. Officers review multiple real-life applications which we randomize applicant gender. While unconditional approval rates are the same, 26 percent more likely require guarantor when present same application as coming from female instead of ma...
the present study surveys the effect of bank-specific, industry-specific and macroeconomic conditions on bank performance to examine the structure-conduct-performance (scp) hypothesis in iranian banking industry. to achieve this goal, we drew upon the panel data technique to analyze the data of eleven public and private iranian banks during 2001-2006. firstly, productivity was calculated by usi...
A membrane composed of polyethylene terephthalate nanofiber and multi-walled carbon nanotubes (PET NF-MWCNTs) composite is used to adsorb methylene blue (MB) dye from an aqueous solution. Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction techniques are employed study the surface properties adsorbent. Several parameters affecting adsorption (pH, MB initial ...
برآورد سطح زیر کشت بر اساس شاخصهای جنبی از جمله میزان بذر، کود و سم تحویلشده به کشاورزان و همچنین برآوردهای شرکتهای مشاور کنترل میگردد که کاری زمانبر و پرهزینه میباشد. بنابراین این مطالعه با هدف برآورد سطح زیر کشت دو محصول گندم و سویا در طی سالهای 2000 تا 2016 با استفاده از تصاویر ماهواره لندست انجام شد. بعد از پیش پردازش و پردازش های لازم، و تهیه نمونه های تعلیمی مناسب از مزارع کشت سویا و گ...
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