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Diatoms in Medical News

Bottled Water Contains Coliform Bacteria and Diatoms

The New York State Department of Health has confirmed coliform bacteria and diatoms in some samples of bottled water produced by North Country Spring Water//, Ltd. For this reason North Country Spring Water, Ltd. of Port Kent is voluntarily recalling all of its bottled water products. Coliform ba...

Human Induced Global Warming Drying Up Arctic Ponds

...f Greenland, had found in earlier studies, that the ponds had been relatively stable for several thousand years-until the 1800s; but that new kinds of diatoms and mosses had taken over the ponds in recent years, the first signs of global warming. During their study, the duo searched sediments in the ...
Diatoms in Biological News

Ancient diatoms lead to new technology for solar energy

CORVALLIS, Ore. Engineers at Oregon State University have discovered a way to use an ancient life form to create one of the newest technologies for solar energy, in systems that may be surprisingly simple to build compared to existing silicon-based solar cells. The secret: diatoms. These ti...

Early initiation of Arctic sea-ice formation

...ilised remains of tiny single-celled plants called diatoms in the sediment cores. Today, different living dia...ers found high abundances of delicately silicified diatoms belong to the genus Synedropsis . "We were astoni...lectron microscope at the NOCS: "Weakly silicified diatoms are preserved only under exceptional circumstances...

Arctic climate under greenhouse conditions in the Late Cretaceous

... Ocean. The scientists analysed the remains of diatoms tiny free-floating plant-like organisms - preserv...ate Cretaceous marine sediments. In modern oceans, diatoms play a dominant role in the 'biological carbon pum...rted to the deep ocean. Unfortunately, the role of diatoms in the Cretaceous oceans has until now been unclea...

Iron and biological production in the high-latitude North Atlantic

... to the partitioning of carbon between the atmosphere and ocean. Phytoplankton are grazed upon and some of the larger phytoplankton species such as diatoms with low grazing mortality are susceptible to silicate shortage. Traditionally, it has been believed that these factors, acting in concert, might be s...

American Chemical Society's Weekly Presspac -- June 17, 2009

... Barely one-third of a strand of hair in diameter, diatoms flourish in enormous numbers in oceans and other w...il into the sediments. Estimates suggest that live diatoms could make 10−200 times as much oil per acre...diatom biology, offering the prospect of "milking" diatoms for sustainable energy by altering them to activel...

Coral 'can't escape the heat'

... industrial age, with most of it occurring in the last 50 years, he explains. If seawater acidifies only a few tenths of pH units further many corals, diatoms and shellfish will be unable to form their skeletons and shells, posing the risk of major extinctions and a threat to marine food chains. "It's ge...

Climate change threatens Lake Baikal's unique biota

...toms, because unlike most diatoms, they bloom under the ice in springtime and are highly dependent on ice cover for their reproduction and growth. The diatoms constitute the principal food of tiny crustaceans abundant in the lake, and these are in turn preyed upon by the lake's fish. Moreover, the crustacean...

Lohafex provides new insights on plankton ecology

... diatoms. These unicellular algae are protected against grazers by shells made of glass (silica) and are known to sink to great depths after blooming. diatoms could not grow in the Lohafex experiment because previous, natural blooms had already extracted all the silicic acid (the raw material of diatom shell...

Mighty diatoms: Global climate feedback from microscopic algae

...y creatures at the bottom of the food chain called diatoms suck up nearly a quarter of the atmosphere's carbo...nt limitation affects the evolution of the size of diatoms in different environments. Their findings undersco...nd found a striking difference between the size of diatoms in freshwater and in marine environments. In ocean...

January GEOLOGY media highlights

...deep ocean sediments through microfossils (such as diatoms and foraminifera), and their study allows research...r area. Exceptional preservation of marine diatoms in upper Albian amber Vincent Girard et al., U...uthwestern France) contains the first known marine diatoms preserved in a fossil resin. About 70 inclusions w...
Diatoms in Biological Technology

Ancient diatoms lead to new technology for solar energy

CORVALLIS, Ore. Engineers at Oregon State University have discovered a way to use an ancient life form to create one of the newest technologies for solar energy, in systems that may be surprisingly simple to build compared to existing silicon-based solar cells. The secret: diatoms. These ti...
Diatoms in Biological Definition

Eukaryote

...avates Various flagellate protozoa Plantae sensu lato Land plants , green and red algae Chromista Brown algae , diatoms , water moulds , etc. Alveolates Ciliates , Apicomplexa , dinoflagellates , etc. However, some protists are not closely related t...

Fungus

...ypochytrids , are not actually related to the true fungi and instead belong among a group called the heterokonts , together with the golden algae , diatoms , brown algae and allies. The chytrids were also formerly excluded from the fungi due to the presence of flagellated spores, but are of definite r...

Protist

...ime moulds , which are spore-forming amoeboids, and the water moulds and labyrinthulids . The latter two are related to brown algae, golden algae, diatoms and the like, forming a group called the heterokonts . This may be placed in a separate kingdom Chromista , in which case the remaining protists ma...

Protist

...ime moulds , which are spore-forming amoeboids, and the water moulds and labyrinthulids . The latter two are related to brown algae, golden algae, diatoms and the like, forming a group called the heterokonts . This may be placed in a separate kingdom Chromista , in which case the remaining protists ma...
Diatoms in Biological Dictionary

Xanthophyll

... Xanthophylls (originally phylloxanthins) are yellow pigments from the carotenoid ... In diatoms and dinoflagellates the xanthophyll cycle consists of the pigment ... xanthophyll ( ) n. A yellow carotenoid pigment, C 40 H 56 O 2 , found...
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