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A faster sequence homology search algorithm based on database subsequence clustering

A faster sequence homology search algorithm based on database subsequence clustering

Computation times for the SRR407548 reads against the KEGG GENES database. The acceleration ratio is relative to BLASTX using single thread. Sequence homology searches are widely used in genome studies. New DNA sequencers produce large amounts of sequence data, which require continual increases in the size of sequence databases. As a result, homology searches require […]

Logging means ants, worms and other invertebrates lose rainforest dominance

Logging means ants, worms and other invertebrates lose rainforest dominance

This is a Polyrhachis ant with prey. Ants like this keep invertebrate numbers down. Credit: Tom Fayle Invertebrates perform essential functions for the smooth running of the ecosystems in tropical forests. For example, creatures such as termites and millipedes help dead leaves decompose and release their nutrients back into the soil, and carnivorous ants and […]

Recipe for saving coral reefs: Add more fish

Recipe for saving coral reefs: Add more fish

Redfin butterflyfish in their coral reef habitat. Fish are the key ingredients in a new recipe to diagnose and restore degraded coral reef ecosystems, according to scientists from the Australian Institute of Marine Science, the WCS, James Cook University, and other organizations in a new study in the journal Nature. Credit: Tim McClanahan/WCS Fish are […]

Alerta de poluare in Oceanul Pacific: O nava care transporta 180 de tone de substante toxice s-a scufundat

Alerta de poluare in Oceanul Pacific: O nava care transporta 180 de tone de substante toxice s-a scufundat

Alerta de poluare in Oceanul Pacific. Asta dupa ce autoritatile din Costa Rica au anuntat ca o nava cargo ce transporta 180 de tone de nitrat de amoniu a naufragiat in apele sale teritoriale. Intreaga cantitate de amoniu a ajuns in ocean. Potrivit presei locale, naufragiul a fost provocat de conditiile meteorologice nefavorabile. Din fericire, […]

Как похудеть перед свадьбой? Диета для невест

Как похудеть перед свадьбой? Диета для невест

Практически каждая женщина сталкивалась с проблемой, когда любимое платье, ранее сидевшее идеально на фигуре, стало мало. И решает похудеть, чтобы вновь можно было его носить. Но что делать, если это не просто любимое платье, а свадебное, которое невеста купила заранее, а теперь немного поправилась и оно стало ей мало? Не стоит расстраиваться. За месяц до […]

Greenhouse gases unbalanced: How human intervention changes wetlands

Greenhouse gases unbalanced: How human intervention changes wetlands

Automatic flux measurement chambers and an eddy covariance system to determine turbulent exchange fluxes of heat, water vapor, CO2, and CH4 between a re-wetted peatland and the atmosphere at Zarnekow, NE Germany. Credit: D. Franz, GFZ Natural wetlands usually emit methane and sequester carbon dioxide. Anthropogenic interventions, in particular the conversion of wetlands for agriculture, […]

Evolution puts checks on virgin births

Evolution puts checks on virgin births

A little fire ant worker foraging for food. All worker ants in this species are sterile females. Credit: OIST It seems unnatural that a species could survive without having sex. Yet over the ages, evolution has endowed females of certain species of amphibians, reptiles and fish with the ability to clone themselves, and perpetuate offspring […]

Ученые разработали новый биопластик на основе растительных масел

Ученые разработали новый биопластик на основе растительных масел

Исследователи из Университета штата Вашингтон (WSU) разработали новый метод использования растительных масел, таких как оливковое и льняное масла, для производства полиуретана, пластикового материала, применяемого во всем, от изоляционной пены и шин до шлангов и герметиков. Полиуретан обладает исключительно высокой прочностью и коррозионной устойчивостью, однако, сегодня он производится в главном из продуктов переработки нефти, и исследователи […]

Let it snow: Intricacies of marine snow formation in the Gulf of Mexico following the Deepwater Horizon oil spill

Let it snow: Intricacies of marine snow formation in the Gulf of Mexico following the Deepwater Horizon oil spill

This is an example of marine snow formed in roller table experiments designed to investigate conditions that induce its formation. Credit: UCSB Five years ago today, the Deepwater Horizon (DWH) oil rig exploded in the Gulf of Mexico. Since then, scientists have continued to study the effects of the largest environmental disaster in the history […]

Coruptia transforma raul Bac intr-o adevarata bomba ecologica

Coruptia transforma raul Bac intr-o adevarata bomba ecologica

Odata cu ridicarea temperaturilor, fenomenele de poluare a aerului, solului si a apei iau amploare, ultimele fiind cele mai dese incalcari in orasul Chisinau si imprejurimile acestuia. De ani buni, in capitala spalatoriile ilegale au impanzit malul raului Bac. O consecinta periculoasa a acestui fenomen sunt reziduuri din urma spalatului masinilor care se scurg in […]

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