نتایج جستجو برای: is bacterium streptococcus iniae and aeromonas hydrophila and yersiniaruckeri bacteria were resistant the studied extracts had stronger antibacterial properties against gram

تعداد نتایج: 21504844  

Abstract Introduction: The aim of this study was to identify the antibacterial components in the ethanol extraction of Aloe vera against four clinically frequent pathogenic  bacteria. Materials and Methods: In this in-vitro study, Aloe vera extraction was prepared by dissolving 500 grams of the powder in 5L of 95% ethanol. The antibacterial activity of the extraction against Staphylococcus a...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1394

the present research was an attempt to see how quranic lexical collocations were translated into english by two professional translators namely, abdullah yusuf(2005), and muhammad s. shakir(2012). the study attempted qualitatively to shed light on how translators dealt with quranic lexical collocations when transferring them to the target language based on the newmark(1988) model , and quantit...

حقیرالسادات, فاطمه , حکم اللهی, فریبا , حکیمی, محمدحسین , حیدری, هاجر , رفعتی, حسن , ریاحی, حسین , عظیم زاده, مصطفی , علی احمدی, آتوسا , موسی زاده, سعید علی ,

Introduction: Macromycetes are considered as new resources for medicine with various biological properties. One of the most important medicinal fungi in Iran is Phellinus conchatus. This genus contains 359 species around the world of which 12 species are reported from the north regions of Iran. Phellinus species have anticancer, antioxidant and antibacterial effects. Moreover, they have been us...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1392

abstract the first purpose of this study was to investigate the effect of consciousness-raising (c-r) activities on learning grammatical structures (simple present tense in this case) by iranian guidance school efl learners. the second one was to investigate the effect of gender on learning the simple present tense through c-r activities and tasks. finally, this study aimed to investigate the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه دریانوردی و علوم دریایی چابهار - دانشکده مدیریت 1393

within communicative, interactive, and learner-centered framework of language teaching and learning, students need to learn four skills of listening, speaking, reading, and writing for their educational success. but of all the language skills, reading enjoys a paramount significance in so many second or foreign language academic contexts. in spite of its importance, language learners still have...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1390

the purpose of the present study was to see which one of the two instruction-processing instruction (pi) and meaningful output based instruction (mobi) accompanied with prompt and recast- is more effective on efl learners’ writing accuracy. in order to homogenize the participants in term of language proficiency a preliminary english test (pet) was administrated between 74 intermediate students ...

Firuzeh, Sara, Taheri Bazkhaneh, Mahsa, Alesheikh, Peiman , Asad Nejad, Asma , Kasaian, Jamal , Mohammadi, Ameneh , Zarghami Moghaddam, Parastoo ,

Introduction: With increasing resistance to overuse of synthetic chemical antibiotics, it is necessary to find alternative drugs that have both antibacterial and minimal side effects. The aim of this research is the effect of different types of solvents on the extraction of effective antibacterial agents of the plant and the identification of chemical compounds of Arenaria hispanica essential o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...

Journal: :advanced herbal medicine 2015
zahra golestannejad elmira mohammadi amir motamedi shahin gavanji niloofar fallah

background and aims: one of the most common chronic diseases in the world is tooth decay. a variety of bacteria are involved in this disorder of which streptococcus mutants is the most common. essential oils are considered as new natural compounds for use in combating drug-resistant bacteria. this study was aimed to evaluate the antibacterial activity of some essential oils prepared from eucaly...

ژورنال: مجله علمی پژوهان 2016

Introduction: Considering growing increase of antibacterial resistance to antibiotics and existing of anti-bacterial compounds in plants, in this study the antibacterial effect of aqueous and methanol extracts of Allium jesdianum plant on some species of pathogenic bacteria was evaluated. Methods: In this experimental study, the aqueous and methanol extracts of Allium jesdianum plant were pr...

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