منابع مشابه
Are there acceptable alternatives to amalgam?
Amalgam has been the material of choice for restoring posterior teeth for more than 100 years. The past 25 years have witnessed significant advances in restorative materials themselves and in the bonding systems for retaining a restoration in the prepared tooth. As a result, there has been a shift toward resin composite materials during this same period because of concerns about the esthetics a...
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You're certainly not alone in your interest of this method. Spermicide is a popular option for birth control because it is easily accessible, simple to use, and provides added lubrication. Results from recent scientific studies for newer alternatives look promising, but more research is still needed. Some of the new ingredients being studied that may be able to function as spermicide (and provi...
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The suitability of different gelling agents as MRI phantoms was evaluated in terms of homogeneity, gel stability and reproducibility. Time and effort for preparation were also taken into account. The relaxation times of various gel compositions were estimated. Carbomer-980 and Carbopol-974P were determined to be promising novel phantom materials. These gelling agents are readily available, inex...
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Anxiety comprises many clinical descriptions and phenotypes. A genetic predisposition to anxiety is undoubted; however, the nature and extent of that contribution is still unclear. Extensive genetic studies of the serotonin (5-hydroxytryptamine, 5-HT) transporter (5-HTT) gene have revealed how variation in gene expression can be correlated with anxiety phenotypes. Complete genome-wide linkage s...
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ژورنال
عنوان ژورنال: Emergency Medicine Journal
سال: 2006
ISSN: 1472-0205,1472-0213
DOI: 10.1136/emj.2005.025080