نتایج جستجو برای: modified

تعداد نتایج: 250758  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1353

مقدار تبخیر و تعرق حقیقی مزرعه یونجه واقع در باجگاه بوسیله روش تعادل آبیاری در 9 کرت آزمایشی و دولیسمتر از نوع وزنی بمنظور تعیین آب مصرفی گیاه یونجه تعیین شد. در طول مدت آزمایش مقدار آب موجود در خاک بوسیله نمونه برداری وزنی از خاک و دستگاه نوترون متر تعیین و مقدار تشعشع رسیده از خورشید بزمین و ساعات آفتابی روز نیز اندازه گیری شد. مقدار تبخیر و تعرق پتانسیل بوسیله روشهای modified blaney-criddle ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1393

در این مطالعه، مدل های ترمودینامیکی مایع-مایع بررسی شده اند. پیش بینی داده های تعادلی با سه مدل nrtl، uniquac و modified-uniquac برای سه سیستم (آب، متانول، mtbe)، (آب، متانول، tame) و (آب، متانول،1-اکتانول) در دمای c?25 انجام گرفته است.کد نویسی این سه مدل در محیط متلب انجام شده است؛ همچنین با استفاده از این نرم افزار پارامترهای سه تایی برای مدل modified-uniquac محاسبه گردیده است. هدف از این کار...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

Journal: :Historia, ciencias, saude--Manguinhos 2009
Maria Clara Coelho Camara Carmem L C Marinho Maria Cristina Rodrigues Guilam Rubens Onofre Nodari

Based on a bibliographic review, the article identifies and offers a critical analysis of scientific production by the public health field in Brazil on genetically modified organisms and food (in)security. Of the 716 articles found on the portals of the Scientific Electronic Library Online (SciELO) and the Coordinating Agency for the Development of Higher Education (Capes), only 8 address the f...

Journal: :Trends in plant science 2015
Stefaan Blancke Frank Van Breusegem Geert De Jaeger Johan Braeckman Marc Van Montagu

Public opposition to genetically modified organisms (GMOs) remains strong. By contrast, studies demonstrate again and again that GM crops make a valuable contribution to the development of a sustainable type of agriculture. The discrepancy between public opinion and the scientific evidence requires an explanation. We argue that intuitive expectations about the world render the human mind vulner...

2010
Marc Van den Bulcke Antoon Lievens Elodie Barbau-Piednoir Guillaume MbongoloMbella Nancy Roosens Myriam Sneyers Amaya Leunda Casi

The detection of genetically modified (GM) materials in food and feed products is a complex multi-step analytical process invoking screening, identification, and often quantification of the genetically modified organisms (GMO) present in a sample. "Combinatory qPCR SYBRGreen screening" (CoSYPS) is a matrix-based approach for determining the presence of GM plant materials in products. The CoSYPS...

Journal: :Food chemistry 2014
Marie-Alice Fraiture Philippe Herman Isabel Taverniers Marc De Loose Dieter Deforce Nancy H Roosens

In the coming years, the frequency of unauthorised genetically modified organisms (GMOs) being present in the European food and feed chain will increase significantly. Therefore, we have developed a strategy to identify unauthorised GMOs containing a pCAMBIA family vector, frequently present in transgenic plants. This integrated approach is performed in two successive steps on Bt rice grains. F...

2015
Xiaofei Li Yuhua Wu Jun Li Yunjing Li Likun Long Feiwu Li Gang Wu

The rapid increase in the number of genetically modified (GM) varieties has led to a demand for high-throughput methods to detect genetically modified organisms (GMOs). We describe a new dynamic array-based high throughput method to simultaneously detect 48 targets in 48 samples on a Fludigm system. The test targets included species-specific genes, common screening elements, most of the Chinese...

2017
Jiansong Li Hui Zhang Shaoyong Zhang Ji Zhang Anliang Chen Jidong Wang Wensheng Xiang

Two new 5-oxomilbemycins, 27-aldehyde-5-oxomilbemycin β12 (1) and 2-hydroxymilbemycin K (2), were isolated from a genetically engineered strain Streptomyces bingchenggensis BCJ60. Their structures were determined by comprehensive analyses of its 1 H and 13 C NMR, COSY, HMQC, and HMBC spectroscopic, HRESI-MS mass spectrometric and comparison with data from the literature. Preliminary studies sho...

Journal: :Anais da Academia Brasileira de Ciencias 2006
Luiz F L Reis Marie-Anne Van Sluys Richard C Garratt Humberto M Pereira Mauro M Teixeira

Biosafety of genetically modified organisms (GMOs) and their derivatives is still a major topic in the agenda of government and societies worldwide. The aim of this review is to bring into light that data that supported the decision taken back in 1998 as an exercise to stimulate criticism from the scientific community for upcoming discussions and to avoid emotional and senseless arguments that ...

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