نتایج جستجو برای: 47666 ngg

تعداد نتایج: 100  

خشایار بدیعی, غلام رضا نبی بیدهندی فرخ لقا امینی, مهرنوش گرایش نژاد نوشین راستکاری پروین فرشچی

استفاده از ترکیب ها آلی قلع یا ارگانوتین ها در رنگ های دریایی (رنگ-های مورد استفاده در سازه ها و شناورهای دریایی) تحت تاثیر محدودیت ها و ممنوعیت های بین المللی قراردارد، اما با وجود قوانین بین المللی، استفاده از این ترکیب ها در ایران به طور غیررسمی ادامه دارد که مصرف گسترده این مواد و ورود آن به محیط های دریایی، به مرور منجر به آلودگی موجودات آبزی اکوسیستم دریا می شود. به همین دلیل تعیین مقدار ...

2015
Henriette O'Geen Isabelle M. Henry Mital S. Bhakta Joshua F. Meckler David J. Segal

Clustered regularly interspaced short palindromic repeat (CRISPR) RNA-guided nucleases have gathered considerable excitement as a tool for genome engineering. However, questions remain about the specificity of target site recognition. Cleavage specificity is typically evaluated by low throughput assays (T7 endonuclease I assay, target amplification followed by high-throughput sequencing), which...

2014
Satoshi Ansai Masato Kinoshita

Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) system-based RNA-guided endonuclease (RGEN) has recently emerged as a simple and efficient tool for targeted genome editing. In this study, we showed successful targeted mutagenesis using RGENs in medaka, Oryzias latipes. Somatic and heritable mutations were induced with high efficiency at the targeted ge...

Journal: :Chemosphere 2006
Chin-Chang Hung Gwo-Ching Gong Kuo-Tung Jiann Kevin M Yeager Peter H Santschi Terry L Wade Jose L Sericano Hwey-Lian Hsieh

Persistent organic pollutants, POPs (e.g., polychlorinated biphenyls) can seriously and deleteriously affect environmental quality and human health. These organic pollutants are exhibiting high affinities to solid phases and thus, quickly end up in sediments. To better understand the role of carbonaceous materials in the transport and distributions of POPs in terrestrial and near-shore environm...

2014
Regina Cencic Hisashi Miura Abba Malina Francis Robert Sylvain Ethier T. Martin Schmeing Josée Dostie Jerry Pelletier Hodaka Fujii

The clustered regularly interspaced short palindromic repeat (CRISPR)-associated enzyme Cas9 is an RNA-guided nuclease that has been widely adapted for genome editing in eukaryotic cells. However, the in vivo target specificity of Cas9 is poorly understood and most studies rely on in silico predictions to define the potential off-target editing spectrum. Using chromatin immunoprecipitation foll...

Journal: :محیط شناسی 0
مهدی خوشناموند دانشجوی کارشناسی ارشد محیط زیست دانشکدة منابع طبیعی دانشگاه کردستان شهرام کبودوندپور استادیار گروه محیط زیست دانشکدة منابع طبیعی دانشگاه کردستان فرزاد غیاثی استادیار گروه شیلات دانشکده منابع طبیعی دانشگاه کردستان بهمن بهرام نژاد استادیار بخش بیوتکنولوژی گروه زراعت دانشکدة کشاورزی دانشگاه کردستان

a research project was designed to compare the level of accumulated mercury in common and silver carp muscle tissues from sanandaj gheshlagh dam. these fish were the most consumed fish in the region. during july to december 2009, forty eight samples of these species were randomly caught (24 samples each). total mercury in muscle tissues was measured by advanced mercury analyzer (model, leco 254...

2007
Roman Barták Dominic Battré Matthias Hovestadt Odej Kao Axel Keller Julie R. Carrington Nam Pham Rong Qu Jay Yellen Ourania Hatzi Dimitris Vrakas Nick Bassiliades Dimosthenis Anagnostopoulos

Service level agreements (SLAs) are powerful instruments for describing all obligations and expectations in a business relationship. It is of focal importance for deploying Grid technology to commercial applications. The EC-funded project HPC4U (Highly Predictable Clusters for Internet Grids) aimed at introducing SLA-awareness in local resource management systems, while the EC-funded project As...

2017
Renee S. Arias Phat M. Dang Victor S. Sobolev Renée S. Arias

The Food and Agriculture Organization of the United Nations estimates that 25% of the food crops in the world are contaminated with aflatoxins. That represents 100 million tons of food being destroyed or diverted to non-human consumption each year. Aflatoxins are powerful carcinogens normally accumulated by the fungi Aspergillus flavus and A. parasiticus in cereals, nuts, root crops and other a...

Journal: :Talanta 2007
Akhmad Sabarudin Mitsuko Oshima Osamu Noguchi Shoji Motomizu

A chitosan resin functionalized with 3-nitro-4-amino benzoic acid moiety (CCTS-NABA resin) was newly synthesized for the collection/concentration of trace molybdenum by using cross-linked chitosan (CCTS) as base material. The carboxyl group of the moiety was chemically attached to amino group of cross-linked chitosan through amide bond formation. The adsorption behavior of molybdenum as well as...

Journal: :Journal of visualized experiments : JoVE 2017
Anjali Nandal Barbara Mallon Bhanu P Telugu

Embryonic and induced pluripotent stem cells can self-renew and differentiate into multiple cell types of the body. The pluripotent cells are thus coveted for research in regenerative medicine and are currently in clinical trials for eye diseases, diabetes, heart diseases, and other disorders. The potential to differentiate into specialized cell types coupled with the recent advances in genome ...

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