نتایج جستجو برای: bacterial effect

تعداد نتایج: 1823502  

Journal: :Journal of Ecology and Environment 2016

Journal: :Journal of General Microbiology 1951

Journal: :avicenna journal of clinical microbiology and infection 0
gregorio cruz-villalón faculty of medicine, department of microbiology, university of extremadura, badajoz, spain; faculty of medicine, department of microbiology, university of extremadura, badajoz, spain. tel: +31-924261762 ciro pérez-giraldo faculty of medicine, department of microbiology, university of extremadura, badajoz, spain; networking research center on bioengineering, biomaterials and nanomedicine, badajoz, spain

conclusions allicin vapor, or some decomposition product of allicin, causes inhibition of bacterial growth and biofilm formation. parallel enzymatic studies confirmed this inhibitory effect and suggest that sulfhydryl enzymes are involved in biofilm formation in the strain studied. results an inhibition effect was observed both in the bacterial cultures and the enzymatic solutions, and the exte...

Journal: :iranian journal of veterinary medicine 2015
alireza behnamifar shaban rahimi mohammad amir karimi torshizi saeed hasanpor zahra mohamadzade

background: in the current iranian poultry industry, antibiotics are the most frequently used additive in poultry feeds to increase productivity. the negative effects on human health, resulting from the consumption of chicken whose feeds contain antibiotics, makes finding an appropriate alternative of great importance. as a result of their nature, herbal extracts could be specifically considere...

Journal: :jundishapur journal of natural pharmaceutical products 0
allan demetrius leite de oliveira department of biological chemistry, laboratory of pharmacology and molecular chemistry, regional university of cariri-urca, crato-ce, brazil; faculty of leao sampaio, lagoa seca campus, juazeiro do norte-ce, brazil fabiola fernandes galvao rodrigue department of biological chemistry, laboratory of natural product research, regional university of cariri-urca, crato-ce, brazil henrique douglas melo coutinho department of biological chemistry, laboratory of microbiology and molecular biology, regional university of cariri-urca, crato-ce, brazil; department of biological chemistry, university of cariri regional-urca, crato-ce, brazil. tel: +55-8831021212; fax +55-8831021291. jose galberto martins da costa department of biological chemistry, laboratory of natural product research, regional university of cariri-urca, crato-ce, brazil irwin rose alencar de menezes department of biological chemistry, laboratory of pharmacology and molecular chemistry, regional university of cariri-urca, crato-ce, brazil

background several studies have shown that species of the genus hyptis, have promising antimicrobial and antifungal effects. objectives identify of chemical constituents of essential oil from leaves of hyptis martiusii and evaluate its effect against bacterial strains by direct and gaseous contact. materials and methods essential oil was extracted from leaves of hyptis martiusii benth using hyd...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده ادبیات و علوم انسانی 1389

current studies in second language (l2) learning have revealed the positive role of corrective feedback (cf) in both oral and written forms in different language features. the present study was an attempt to investigate the effect of both direct and indirect written corrective feedback (wcf) on the use of grammatical collocations in l2 writing. the study also sought to examine whether the effec...

Journal: :iranian journal of public health 0
s eshraghi f seifollahi

honey and royal jelly are complex heterogeneous mixtures of flower s’ nectar sugars proteins and bees’ glandular secretions. royal jelly is the hypo-pharyngeal gland excretion of the young worker honeybees (apis mellifera). the wonderful effects of royal jelly on the sexual ability and maturity of the queen has been an interesting topic and controversial issue for researchers for many years. th...

پایان نامه :0 1374

the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...

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

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

هدف این مطالعه تعیین کردن این مساله است که آیا فراگیران فارسی زبان قادر به تطبیق پارامتری ضمیر موصولی that در جملات ساده و پیچیده ی انگلیسی در سایه اصل دستور جهانی هستند یا خیر. به علاوه نقش جنسیت در رابطه با آزمون تشخیص درستی یا نادرستی جملات دستوری مورد بررسی قرار گرفت. داده ها از 54 دانشجوی فراگیر زبان انگلیسی در دانشگاه فردوسی مشهد گردآوری شد. شرکت کنندگان در آزمون شامل 28 زن (51.85 درصد)و ...

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