نتایج جستجو برای: electromagnetic field

تعداد نتایج: 842886  

Journal: :IEEE Transactions on Antennas and Propagation 1989

ژورنال: آبزیان زینتی 2019

The objective of this paper is to survey the results of studies on the biological effects of electromagnetic fields on fish. First, the basic concepts of electromagnetism and electromagnetic spectrum and the importance of studying it in the case of fish are discussed. Then a summary of the results obtained on the effects of extremely low frequency electromagnetic fields (ELF-EMFs) and radiofreq...

Journal: :journal of paramedical sciences 0
majid mahdavi department of biology, faculty of natural science, university of tabriz, tabriz, iran. reza yekta department of biology, faculty of natural science, university of tabriz, tabriz, iran. saeed hesami tackallou department of biology, garmsar branch, islamic azad university, tehran, iran.

extremely low frequency (elf) electromagnetic field (elf-emfs) are widely employed in electrical appliances and different equipment such as television sets, elf-emfs can  affect biological systems by increasing production  ros. the altered balance between ros generation and elimination plays a critical role in a variety of pathologic conditions. ros levels have been observed in several hematopo...

2011
Sanjay Kumar Kavindra Kumar Kesari Jitendra Behari

INTRODUCTION Environmental exposure to man-made electromagnetic fields has been steadily increasing with the growing demand for electronic items that are operational at various frequencies. Testicular function is particularly susceptible to radiation emitted by electromagnetic fields. OBJECTIVES This study aimed to examine the therapeutic effects of a pulsed electromagnetic field (100 Hz) on ...

Electromagnetic waves (EMF) are a mixture of electrical and magnetic waves. The energy transmitted by these radiations is absorbed by living tissues. Electromagnetic fields seem to cause infertility in women. Cannabis is annual herbaceous plant grows in tropical areas. This study was conducted to investigate the protective effects of hydroalcoholic extract of Cannabis sativa in various doses of...

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

چکیده ندارد.

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان قزوین - دانشکده پزشکی 1386

چکیده ندارد.

As organisms exposed to various abiotic and biotic environmental impacts, plants are able to recognize and respond to their surrounding environment with high specificity. Electromagnetic field radiation is an important effective stress factor on growth and development of plants. Our research focused on plants grown from wet pretreated seeds with low frequency electromagnetic field exposure comp...

2013
R. Bhattacharya R. Roy

Birds are powerful indicator of an ecosystem because of their thin skull, feathers as dielectric receptor, high mobility and use of areas having high electromagnetic field. Among the total publications on the impact of electromagnetic radiation on living beings, only 3% are on birds. Both positive and negative results are reported regarding the biological responses of birds exposed to electroma...

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