background: helicobacter pylori may cause many gastrointestinal problems in developing countries such as iran. we aimed to analyze the cost- effectiveness and cost- utility of the test-and-treat and empirical treatment strategies in managing helicobacter pylori infection.            methods: this was a markov based economic evaluation. effectiveness was defined as the symptoms free numbers and ...

The German research vessel Sonne is operating in the Pacific, Southern and Indian Oceans. In the current stage of development in Pacific deep-sea mining projects, prior understanding of biodiversity patterns in the affected regions is one of the major research goals of the RV Sonne cruises. In the present study, nine bryozoan species are reported from the Equatorial East Pacific and the Kermade...

The UK's Millennium Seed Bank, part of the Royal Botanic Gardens, Kew, has collected its billionth seed for safekeeping and conservation. The seed was presented to the British chancellor, Gordon Brown, ahead of an official ceremony at the Seed Bank in southern England late last month to mark World Biodiversity Day. The Millennium Seed Bank (MSB) Project is one of the most ambitious conservation...