نتایج جستجو برای: significant diffirences in inhibition zone diameter

تعداد نتایج: 17068050  

Journal: :Applied microbiology 1967
F J Hanus J G Sands E O Bennett

Agar has been shown to interfere with the activity of some antibiotics against Staphylococcus aureus. This interference has been observed as an increase in the minimal inhibitory concentration and in the diameter of the zone of inhibition. Purifying the agar with water extractions substantially reduced this adverse effect.

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

based on the latest records of typhlops vermicularis merrem, 1820 from iran, this species is distributed in the northern and southern regions of the country. in this study, new records of typhlops vermicularis are presented and it is shown that distribution range of this species is extended towards the eastern and western iran, and according to the new distribution map, it can be assumed that t...

Journal: :Journal of Pure and Applied Microbiology 2023

Fungal infections, such as those caused by Aspergillus, Alternaria, Colletotrichum, Penicillium, and Rhizopus, are considered the major global threat to human life. In seeking a treatment, we synthesized characterized copper nanoparticles (CuNPs) using Curcuma longa extract. C. plant extract has been previously studied validated for its strong antimicrobial properties. Novel green particles wer...

Journal: Journal of Nanoanalysis 2019
Alfred Khodaverdian, Elena Pakina Imbia Marie Wase Mohamad Heydari Niloufar Mahmoudi, Yousef Naserzadeh,

Green synthesis is a simple, low-cost, non-toxic, environmentally friendly and efficient approach touse. Leaf extract of plants rich in polyphenols, such as flavonoids, is a powerful agent in reducing thesynthesis of gold nanoparticles. The purpose of this study is to investigate the parameters affecting thebiosynthesis of gold nanoparticles using the aqueous extract of Scroph...

Journal: Journal of Herbal Drugs 2013

Background & Aim: The major aim of this study was to determine the antibacterial activity of the essential oils from five medicinal plants. Experimental: The hydro-distillation essential oils from five plant species, including Satureja bachtiarica, Zataria multiflora, Thymus daenensis, Thymus carmanicus, and Ziziphora tenuior (Lamiaceae) which are e...

Background and Aims: Marine Actinomycetes are gram-positive bacteria that sometimes are free, saprophytic or plant and animal-associated, including marine sponges. More than 75% of antibiotics and antimicrobial compounds are produced by actinomycetes. In recent years, due to the need for new drugs, marine microorganisms have been considered as new sources of potential production of significant ...

In the present study, to resolve the problems in fusion welding methods as well as to increase the strength, FSW method was used to join aluminum alloy sheets 6061 and 2024. Moreover, optimal parameters for joining of these two alloys were also taken into consideration. Various tool rotation speeds of 565, 950 and 1500 rpm were selected. For each tool rotation speed, two traverse speed variable...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1391

during the process of reading, sometimes learners use ineffective and inefficient strategies and some factors may influence their use of strategies. perhaps critical thinking is one of these factors. this study aims to identify those categories of reading strategies that are mostly used by iranian efl learners and to see if there is any significant relationship between the critical thinking abi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده اقتصاد و علوم اجتماعی 1390

abstract deviation or in other words committing a crime is literally a social problem. this research that was conducted in 1389 and 1390 has tried to investigate the causes of crimes committed by young male inmates qazvin central prison and effective variables on their tendency to deviation. accordingly after collecting theoretical framework and offering theoretical model including both hirsch...

alipour, elham, Barekatain, Mehrdad, Mohammadi, Farzaneh,

Background and Aim: the study of antibacterial properties of resin cements and modified glass ionomers is of great importance. The aim of this study was to determine the antibacterial effect of resin-modified glass ionomers and resin cements on cariogenic bacteria, Streptococcus mutans, Streptococcus sabrinus and Lactobacillus acidophilus. Materials and Methods:In this experimental laboratory s...

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