background : almost two thirds of iranians eligible for using contraceptive methods use these methods. their dissatisfaction with the methods would directly and indirectly affect the quality of family planning services and would bring about detrimental results for the service recipients and consequently for other family members. therefore, identification and evaluation of the factors leading to...

The phenomenon known as Web logging (“blogging”) has helped realize an initial goal of the Web: to turn Web content consumers (i.e., end users) into Web content producers. As the Semantic Web unfolds, we feel there are two questions worth posing: (1) do blog entries have semantic structure that can be usefully captured and exploited? (2) is blogging a natural way to encourage growth of the Sema...

What do you do to start reading life would be easy if it werent for other people? Searching the book that you love to read first or find an interesting book that will make you want to read? Everybody has difference with their reason of reading a book. Actuary, reading habit must be from earlier. Many people may be love to read, but not a book. It's not fault. Someone will be bored to open the t...

On August 5, 2014, after 29 days of fighting, Israel and Hamas accepted an Egyptian proposal for a 72-hour unconditional cease-fire. The cease-fire was meant to provide a calmer environment for direct and indirect talks on stabilizing the relations between Israel and Gaza. Fire was renewed after the agreed three days of quiet did not produce a breakthrough but another ceasefire went into effect...

The challenge of treating large osseous defects presents a formidable problem for orthopedic and maxillofacial surgeons. The present method of choice to replace lost tissue is autologous bone grafting, but supplies of autologous bone are limited and harvesting of the graft is associated with donor site morbidities [1]. Artificial biomaterials offer much promise, but do not, by themselves, suppl...

Despite considerable progress in software and hardware techniques, when embedded computing systems absolutely must meet tight timing constraints, many of the advances in computing become part of the problem rather than part of the solution. Although synchronous digital logic delivers precise timing determinacy, advances in computer architecture and software have made it difficult or impossible ...

“Biology is complex.” “Biology is not well understood enough to engineer.” “Biology is not ready for design software.” Sound familiar? As an electrical engineer entering synthetic biology in 2007 I have heard all of these and more (some are less polite). It is often pointed out that biological systems lack many of the characteristics that have allowed mankind to engineer electronic systems. Whi...