نتایج جستجو برای: d24 o14
تعداد نتایج: 576 فیلتر نتایج به سال:
This paper argues that barriers affect both the beginning date and the subsequent pace of modern growth, and taking into account this fact enriches our knowledge of cross-country income differences. The model matches the observed inverted U-shape of cross-country income differences, which implies that a substantial fraction of current income differences is transitional. Hence, the model require...
Do transitory economic shocks affect neonatal outcomes? I show that an unexpected, monthlong blackout in Tanzania caused a sharp but temporary drop in work hours for workers in electricity-dependent jobs. Using records from a maternity ward, I document a reduction in birth weights for children exposed in utero to the blackout, and an increase in the probability of low birth weight. The reductio...
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In this study, the optimization of medium components used for production lipase enzyme from Cryptococcus albidus D24 was performed using Plackett-Burman statistical design method (PBD), and most important nutrients affecting strain were determined as first step. According to PBD, highest activity (19.34 U/ml/min) obtained with including Tween 80 (X2) 2.5% (v/v), (g/L) Peptone (X4) 8.0, Yeast Ex...
Granulocyte macrophage colony-stimulating factor (GMCSF) can mediate antitumor effects by recruiting natural killer cells and by induction of tumor-specific cytotoxic T-cells through antigen-presenting cells. Oncolytic tumor cell-killing can produce a potent costimulatory danger signal and release of tumor epitopes for antigen-presenting cell sampling. Therefore, an oncolytic adenovirus coding ...
Innovation plays a crucial role in improving firm's performance. The relationship between innovation and productivity has been widely analysed during this decade across countries industries, generating important new findings. This study aims to provide an overall literature review on the of firms obtain comprehensive overview changing productivity. By reviewing existing empirical evidence, one ...
An antigen common to members of the family Enterobacteriaceae detectable only by means of the hemagglutination test was recently described (1-3). I t was discovered during the course of a study using this test concerned with serologic interrelationships among the almost 145 known Escherickia coli 0 antigen groups (2). Good correspondence was obtained between O antigen groups and homologous rabb...
Durio zibethinus L. (durian) belongs to the Malvaceae family. It is known as “King of Tropical Fruit” because its unique characteristics. The edible part durian, however, only about 33% fruit while non-edible parts such seed and peels (rinds) are considered waste responsible for environmental pollution. Thus, present study was carried out compare percentage yields volatile components from metha...
Factor market failures can limit adoption of profitable technologies. We leverage a plot-level spatial regression discontinuity design in the context irrigation use by farmers provided free access to water. Using boosts profits 43–62 percent. Yet, only irrigate 30 percent plots because labor costs. demonstrate inefficient use, showing irrigating one plot reduce their on other plots. This ineffi...
Although some studies have posited that sectoral growth could influence environmental pollution through energy consumption, the issue has not been explicitly and empirically investigated in carbon-neutrality literature. Hence, this analysis fills gap extant literature by employing interaction models to ascertain moderating role of consumption on impacts industrial, agricultural, financial, serv...
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