نتایج جستجو برای: were exposed to 125 μg l

تعداد نتایج: 10959093  

2017

Two tropical macroalgae, Gracilaria salicornia and Padina sanctae-crusis, were exposed to varying concentrations of total Cu and subsequently subjected to photosynthesis-irradiance (P-I) response experiments. The study aimed to determine the effects of total Cu toxicity on the P-I model parameters and growth rate of the macroalgae. The photosynthetic efficiency (α) showed a decreasing pattern w...

Alireza Pourkhabbaz, Amir Hossein Hamidian, Borhan Mansouri, Maryam Zareh, Rahimeh Baramaki ,

Background: This study aims to investigate the patterns of bioaccumulation and depuration of copper in the selected kidney and liver of Capoeta fusca. Methods: The fish were collected between September and November 2010 from a qanat in Birjand. They were exposed to two types treatments with copper (0.25 and 0.75 mg/L) for a period of 41 days. The fish under study were exposed to the above-ment...

Hassanpour H Heidari Nasirabadi M, Hematian Khayat S Khalili Sadr Abad E

Background: Chicken sertoli cells are a model to evaluate the effects of toxic Materialss. These cells can actively proliferate in the in vitro conditions and they are able to passage several times. Because of the widespread use of nanosilver in life and also few studies on the effects of these Materialss on different cell lines, evaluation of its toxic effects is felt. Mechanism of nanosilver ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی 1394

abstract previous studies on willingness to communicate (wtc) have shown the influence of many individual or situational factors on students’ tendency to engage in classroom communication, in which wtc has been viewed either at the trait-level or situational level. however, due to the complexity of the notion of willingness to communicate, the present study suggests that these two strands are ...

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

the aim of this study was to identify the problems of translating markedness structures from english to persian in order to look closely at what possible difficulties translators may face. it also seeks to probe the strategies applied accordingly by iranian translators in translating them. from three translation of blindness novel, the sentences with marked structures were elicited and also the...

پایان نامه :دانشگاه امام رضا علیه اسلام - دانشکده ادبیات و علوم انسانی 1393

this research aims at answering the questions about translation problems and strategies applied by translators when translating cultural concepts. in order to address this issue, qualitative and quantitative study were conducted on two groups of subjects at imam reza international university of mashhad. these two groups were assigned as beginner and advanced translation students (10 students). ...

2012
L. flower

A n t i f u n g a l a c t i v i t y o f r h e i n ( 1 , 8 dihydroxyanthraquinone3carboxylic acid) isolated from the ethyl acetate extract of Cassia fistula flower was studied. Rhein inhibited the growth of many fungi such as Trichophyton mentagrophytes (MIC 31.25 μg/ml), Trichophyton simii (MIC 125 μg/ml), Trichophyton rubrum (MIC 62.5 μg/ml) and Epidermophyton floccosum (MIC 31.25 μg/ml).

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1390

objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...

2012
Midori IIDA Eun-Young KIM Yasunori MURAKAMI Yasuhiro SHIMA Hisato IWATA

Bony fish is highly sensitive to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure, especially at early developmental stages. TCDD induces various toxic effects including yolk sac edema, craniofacial malformation and neural damage in developing fish embryos. However, the effects of TCDD on the peripheral nervous system (PNS) of fish remain unclear. To clarify whether TCDD affects the morpholo...

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده ادبیات و زبانهای خارجی 1390

this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...

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