نتایج جستجو برای: drawbacks
تعداد نتایج: 18979 فیلتر نتایج به سال:
We examine the effect of the number of candidates and the impact of ideology on the efficiency of the electoral process. We show that the tendency to focus on policies that provide particularistic benefits increases with the number of candidates to the expense of policies that benefit the population at large. Thus, the efficiency of policies provided in an electoral equilibrium worsens when the...
Cloning is powerful tool for production of genetically identical copies of desired donor animal but its success is still questionable. Due to number of factors, many scientist and common people are against cloning. Up to now it’s consider as inefficient technique due to high failure of cloned animal growth from gestation to adulthood. Mostly losses in cloned animals are due to placental abnorma...
The success of the Open Source Software movement is beyond doubt one of the most interesting and yet controversial phenomena in software development today. Many contributions stressed the successes and advantages of this new approach but there are alsomajor drawbacks, often (consciously) overlooked by the proponents of Open Source. This paper summarizes and categorizes these drawbacks to broade...
169 Food Security: Population Controls A. H. Westing Food Security: Green Revolution Drawbacks V. Rull Food Security: Beyond Technology D. W. Bromley Food Security: Crop Species Diversity H. Dempewolf et al. Food Security: GM Crops Threaten Biodiversity R. Tirado and P. Johnston Food Security: Rigorous Regulation Required M. Mellon Food Security: Focus on Agriculture J. R. Porter et al. Food Se...
The contents of total ashes and ethanol soluble substances were determined for propolis samples from species two Meliponini genera: Melipona Scaptotrigona. All corresponded to geopropolis (propolis containing aggregated soil material), with ash above 40%. Only one Scaptotrigona was shown produce geopropolis, but content (12%) much lower than samples. In a high negative correlation observed betw...
tau.amegroups.com © Translational Andrology and Urology. All rights reserved. Dr. Cunha-Filho, in his commentary on the practice recommendations by Agarwal et al. (1), described the current status of sperm DNA fragmentation (SDF) testing. He discussed the pitfalls of the current practice in using intracytoplasmic sperm injection (ICSI) in bypassing male factors on one hand, while elaborating on...
BACKGROUND Endoscopic thoracic sympathectomy (ETS) has come into widespread use for palmar hyperhidrosis and other complaints of the upper limb and of the head and neck, but there are concerns about its safety. This review highlights the operative complications and long-term side-effects that may occur. METHODS A Medline search was carried out using the terms 'thoracoscopic sympathectomy', 'e...
To provide one motivation for the development of ARCH models (next handout), we briefly discuss here some difficulties associated with the Black Scholes formula, which is widely used to calculate the price of an option. For example, consider a European call option for a stock. This is the right to buy a specific number of shares of a specific stock on a specific date in the future, at a specifi...
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