نتایج جستجو برای: Gene optimization
تعداد نتایج: 1450764 فیلتر نتایج به سال:
the engineering of transgenic canola (brassica napus l. ) to make tolerance to the broad-spectrum herbicide, glyphosate, is one of the most effective approaches for weed management. glyphosate inhibits the enzyme epsps (5-enolpyruvylshikimate-3-phosphate synthase) enzyme which functions in the shikimate pathway and has a key role in biosynthesis of aromatic amino acids required for survival of ...
there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...
delivery of exogenous materials such as nucleic acids, peptides, proteins, and drugs into cells is an important strategy in modern cellular and molecular biology. recently, the development of gene carriers for efficient gene transfer into cells has attracted a great attention. furthermore, lack of effective drug delivery is one of the major problems of cancer chemotherapy. many physical methods...
the improvement of high-through-put gene profiling based microarrays technology has provided monitoring the expression value of thousands of genes simultaneously. detailed examination of changes in expression levels of genes can help physicians to have effi cient diagnosing, classification of tumors and cancer’s types as well as effective treatments. finding genes that can classify the group of...
Nowadays, genetic engineering methods are able to reduce the time of breeding programs for improvement of fruit trees, as well as offering a focused breeding system. The purpose of the present investigation was to study the factors that affect Agrobacterium tumefacience mediated transformation of two pear cultivars: Bartlett and Harrow Delight. Two explants (leaves and axillary shoot meristems)...
Background: RNAi (RNA interference) is a new strategy in gene therapy and biotechnology which provides new promises in the treatment of different diseases such as cancer and viral diseases. CCND1 which is a key gene in cell cycle is amplified and over expressed in esophageal cancer. The objective of this study was production and siRNAs for CCND1, the key gene in cell cycle. Materials and Metho...
Background: Vaccines have played a special role in controlling and reducing mortality from infectious diseases. In this regard, DNA vaccines were developed to ease the production and reduce the risks of traditional vaccines. Human papillomavirus (HPV) has been introduced as the causing agent of cervical cancer. The capsid protein (L1) of HPV has been used to produce subunit and DNA vaccines. Th...
مطالعات انجام شده روی مکانیسمهای تکوینی و تکاملی گلبولهای قرمز منجر به دستیابی بشر به مفاهیم پایه و مهمی در ارتباط با مکانیسمهای عمومی تنظیم بیان ژن وشکل گیری بافتها شده است. تمایز اختصاصی به رده ارتیروئید و هر رده دیگری، شدیداً وابسته به تنظیم در سطح بیان ژن و فاکتورهای کنترلی خاص نظیر سیتوکین ها، فاکتورهای نسخه برداری ویژه، عناصر کنترل کننده چرخه سلولی، تکثیر،آپوپتوز و عناصر سیگنالینگ داخل سلو...
Tomato is an important economic crop with nutritional and scientific value for study. Due to its agronomic importance and sensitivity to biotic and abiotic stresses, using new methods in breeding this crop is necessary. In this study, the effects of some factors, such as pre-cultivation time (1, 2, 3 and 4 days), Agrobacterium concentration (OD600nm = 0.4, 0.6, 0.8, and 1), inoculation time (5,...
An efficient method for scattering Genetic Algorithm (GA) individuals in the design space is proposed to accelerate airfoil shape optimization. The method used here is based on the variation of the mutation rate for each gene of the chromosomes by taking feedback from the current population. An adaptive method for airfoil shape parameterization is also applied and its impact on the optimum desi...
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