نتایج جستجو برای: algae control

تعداد نتایج: 1346448  

2015
Alice Jernigan Christa Hestekin

Capillary electrophoresis single-strand conformational polymorphism (CE-SSCP) was explored as a fast and inexpensive method to differentiate both prokaryotic (blue-green) and eukaryotic (green and brown) algae. A selection of two blue-green algae (Nostoc muscorum and Anabaena inaequalis), five green algae (Chlorella vulgaris, Oedogonium foveolatum, Mougeotia sp., Scenedesmus quadricauda, and Ul...

 Background and purpose: About 50% of infertility in couples is related to male factors and oxidative stress is one of the main causes of infertility in men. Hydrogen peroxide has an adverse effect on male reproductive system due to its free radicals. Spirulina and phycocyanin are known to have antioxidant properties and can modify stressors. Materials and methods: In this experimental study, ...

Journal: :Animal : an international journal of animal bioscience 2013
S Gilles L Fargier X Lazzaro E Baras N De Wilde C Drakidès C Amiel B Rispal J-P Blancheton

Integrated Multi-Trophic Aquaculture takes advantage of the mutualism between some detritivorous fish and phytoplankton. The fish recycle nutrients by consuming live (and dead) algae and provide the inorganic carbon to fuel the growth of live algae. In the meanwhile, algae purify the water and generate the oxygen required by fishes. Such mechanism stabilizes the functioning of an artificially r...

Marine algae are known to contain a wide variety of antioxidant compounds. Natural antioxidants, found in many algae, are important bioactive compounds that play an important role against various diseases and ageing processes through protection of cells from oxidative damage. There is now a global interest in finding new and safe antioxidants from natural sources. Algae can have a variety of pr...

Journal: :Plant physiology 1980
C H Chen D S Berns

Thermotropic properties of blue-green algae grown at high, room, and low temperatures in H(2)O and D(2)O media were studied by highly sensitive differential scanning microcalorimetry. The thermograms of these organisms contain an endothermal peak in the temperature range of 50 to 70 C with an endothermal heat ranging from 0.14 to 1.91 joules per gram organism. The temperature at which the endot...

Caglar , M., Coskun , E., Selamoglu , Z.,

In this study, the epilithic algae in the samples collected from three stations on the Çalgan Creek (Elazığ) in Fırat University between January and June 2016 were investigated in terms of some physical and chemical parameters. During the study, 44 taxa of epilithic algae were recorded. It was observed that Euglenophyta (1 species), Cyanophyta (3 species), Chlorophyta (6 species) and Bacillario...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران 1388

some researches made in the field of agency problem issue, deal with the role of control systems regarding owners and managers. in this research the relationship between the two control mechanisms, namely the voluntary disclosure (external control mechanism) and outside directors (internal control mechanism), which are reductive of agency problems, has been studied. for this reason, a sample ...

2014
Ryan J. Powell Russell T. Hill Ryan Joseph Powell Feng Chen Harold Schreier Paul Behrens Connie Powell

Title of Dissertation: RAPID HARVEST OF ALGAE FOR BIOFUEL PRODUCTION WITH THE AGGREGATING BACTERIUM BACILLUS SP. STRAIN RP1137 Ryan J. Powell, Doctor of Philosophy, 2014 Directed By: Dr. Russell T. Hill, Professor, University of Maryland Center for Environmental Science Algal biofuels represent one of the most promising means of sustainably replacing liquid fuels. However significant challenges...

2002
John D. Wehr Louis Calder

Brown algae, the Phaeophyceae (or Fucophyceae; Christensen, 1978), are a class (or division, Phaeophyta; Papenfuss, 1951) of algae consisting mainly of complex, macroscopic seaweeds whose brown color comes from a carotenoid pigment, fucoxanthin, and in some species, various phaeophycean tannins. Of perhaps 2000 species (in 265 genera) of brown algae (Van den Hoek et al., 1995), less than 1% are...

ژورنال: :مجله گیاهشناسی ایران 2015
فاطمه سرگزی مسعود شیدایی حسین ریاحی

تنوع ریختی و بوم شناسی و ارتباط درون گونه ای جلبک قرمز جنس هیپنه آ بر روی 15 جمعیت متعلق به 5 گونه از دریای عمان در این پژوهش بررسی شده است. در این پژوهش تجزیه و تحلیل خوشه ای، تجزیه مولفه های اصلی و تحلیل روابط بوم شناسی گونه ها انجام گرفت. تجزیه و تحلیل آماری نشان داد که صفاتی مثل وجود انشعابات خاص، موقعیت تتراسپورانژها و نحوه اتصال جلبک به زیستگاه جلبک بیشترین نقش را به عنوان صفات تشخیصی جدا...

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