Copper intrauterine devices in the abdomen.
نویسندگان
چکیده
منابع مشابه
Intrauterine deposition of calcium on copper-bearing intrauterine contraceptive devices.
Copper-bearing intrauterine contraceptive devices (IUDs) removed after various times in utero were examined by scanning electron microscopy and x-ray microanalysis of the elements present. As time in utero increased these devices became increasingly calcified. This calcification may limit the release of copper from the devices and decrease the specific contraceptive effectiveness of copper over...
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In this article, a novel composite of copper (Cu) nanoparticles and polydimethiylsiloxane (PDMS) has been prepared and investigated for the potential application in Cu-containing intrauterine device. The Cu/PDMS composite with various mass fraction of Cu nanoparticles was fabricated via the hot vulcanizing process. The chemical structures and surface morphologies of the Cu/PDMS composites were ...
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this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
Intrauterine devices: an update.
Three intrauterine devices (IUDs) are available in the United States: the copper T 380A and two levonorgestrel-releasing IUDs, one that releases 20 mcg of levonorgestrel per 24 hours, and one that releases 14 mcg per 24 hours. All are safe and effective methods of contraception that work predominantly by prefertilization mechanisms. The copper T 380A IUD may be placed in nonpregnant women at an...
متن کاملIntrauterine contraceptive devices.
In recent years there has been an upsurge of interest in the intrauterine contraceptive devices (I.U.C.D.) both as a means of controlling the world population explosion and as another contraceptive for use in routine family planning. The characteristic of the intrauterine device method which disti'nguishes it from all other methods of contraception is that its' effectiveness is largely independ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1978
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.6144.1088-b