نتایج جستجو برای: aquatic nanotoxicology

تعداد نتایج: 31723  

Journal: :The Journal of experimental biology 2013
Egon Heiss Peter Aerts Sam Van Wassenbergh

Transitions between aquatic and terrestrial environments are significant steps in vertebrate evolution. These transitions require major changes in many biological functions, including food uptake and transport. The Alpine newt, Ichthyosaura alpestris, is known to show a 'multiphasic lifestyle' where the adult shifts from a terrestrial to an aquatic lifestyle and then back to a terrestrial lifes...

Journal: :iranian journal of toxicology 0
علی اکبر هدایتی aliakbar hedayati department of fishery, gorgan university of agricultural science and natural resources, gorgan, iran. زهرا غفاری zahra ghaffari msc student, gorgan university of agricultural science and natural resources, gorgan, iran.

background: copper is a trace element vital to life, but the toxic effect of water pollution with it on fish is now exhibited. fish blood is susceptible to contamination-induced stress and its alternation due to the hematological and immunological parameters can be utilized as toxicity indices of xenobiotics. methods: in this study, juvenile species of silver carp with average weight of 200gr w...

Journal: :journal of research in rehabilitation sciences 0
سید سجاد حسینی حسین رستمخانی ذبیح اله نقی لو نوید لطفی seyed sajad hosseini hossein rostamkhany

abstract introduction: since balance maintenance is one of the indices of determining independence in older people, identifying factors that have some effects on it appears to be an interesting research issue. the aim of this study was to compare the effects of aquatic training; mental training and concurrent training (both aquatic and mental training) on balance in normal elderly males. materi...

Journal: :jundishapur journal of natural pharmaceutical products 0
mohammad reza shushizadeh marine pharmaceutical science research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; marine pharmaceutical science research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-6114445655, fax: + 98-6113738379

ژورنال: :مجله گیاهشناسی ایران 2010
مهری دیناروند

به منظور تدوین فلور گیاهان آبزی ایران تیره های najadaceae و lemnaceae مطالعه گردید. در بین نمونه ها گونه های  najas gracillima    از استان خوزستان و lemna perpusilla از استان فارس برای اولین بار جمع آوری و شناسایی شد. در این مقاله گونه های مذکور از ایران معرفی و کلید شناسایی جنس های najas و lemna برای گونه های شناخته شده از ایران ارائه می شود.

Journal: :caspian journal of environmental sciences 2014
al et s. balaly

the distribution and abundance of high aquatic plants in the gorganroud river was examined at five stations in four seasons (20 samples) over one year period during 2009-2010. we identified 21 species of aquatic plants from 21 genera, belonging to 9 families. these species were determined as 3 halophytic species (14.2%) and 18 high aquatic plants (85.7%).the highest species diversity was observ...

Journal: :physical treatments 0
heydar sadeghi department of biomechanics, faculty of physical education and sport science, kharazmi university, tehran, iran. fatemeh alirezaee department of sport biomechanics, faculty of sport sciences, ferdowsi university of mashhad, mashhad, iran. esmaeel ebrahimi takamjani department of physical therapy, school of rehabilitation sciences, iran university of medical sciences, tehran, iran. ramin kordi sport medicine research center, tehran university of medical science, tehran, iran.

purpose: this study aimed to examine the differences in the co-activation of the rectus femoris (rf) and biceps femoris (bf) using the co-contraction index (ci) in aquatic and land environments during a drop-landing task in active and non-active females. methods: in this casual-comparison study, 10 active and 10 non-active females volunteered to participate. the ci was calculated from recorded ...

Journal: :تحقیقات علوم رفتاری 0
شیوا علمازاده فرزانه تقیان مجید برکتین shiva olamazadeh farzaneh taghian majid barekatain

aim and background: panic disorder (pd) is an anxiety disorder that is associated with cognitive and physical symptoms and can cause cardiovascular, respiratory, neurological, intestinal, and psychological complications, sweating, chills, and fever. given that exercise in water is effective in reducing symptoms of anxiety, the aim of this study is to determine the effect of aquatic exercise on ...

2003
Chika Kato Tomoya Iwata Shigeru Nakano Daisuke Kishi

The flux of emerging aquatic insects from streams can provide a significant energy subsidy to riparian web-building spiders. However, despite the high temporality of aquatic insect emergence, the effects of such aquatic insect dynamics on spider distribution are poorly understood. To examine the relationship, the aquatic insect flux from a headwater stream in a northern Japanese deciduous fores...

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