Sentences with phrase «on calcifying»

Predictions concerning the consequences of the oceanic uptake of increasing atmospheric carbon dioxide (CO2) have been primarily occupied with the effects of ocean acidification on calcifying organisms, particularly those critical to the formation of habitats (e.g. coral reefs) or their maintenance (e.g. grazing echinoderms).

A recent meta - analysis indicated a significant negative effect of ocean acidification on calcifying and non-calcifying echinoderm larvae (n = 26 studies)[63].

Anthropogenic ocean acidification over the twenty - first century and its impact on calcifying organisms

Orr, James C., Victoria J. Fabry, Olivier Aumont, et al. (2005): Anthropogenic ocean acidification over the twenty - first century and its impact on calcifying organisms.

for article Anthropogenic ocean acidification over the twenty - first century and its impact on calcifying organisms.

Orr, J. C. et al., 2005: Anthropogenic ocean acidification over the twenty - first century and its impact on calcifying organisms.

Still, the VAST balance of published acidification studies (on calcifying animals and non-animals) show just the opposite, as Langdon points out.

Orr, J.C. et al. (2005) Anthropogenic ocean acidification over the twenty - first century and its impact on calcifying organisms.

ABSTRACT The impact of seawater acidification on calcifying organisms varies at the species level.

Increasing ocean acidification can have negative effects on calcifying marine organisms.

While the resulting increases in pCO2 can have deleterious effects on calcifying animals, this change in carbonate chemistry may benefit some marine autotrophs.

Orr, J.C. et al. (2005) Anthropogenic ocean acidification over the twenty - first century and its impact on calcifying organisms.

Acidification of polar waters is predicted to have adverse effects on calcified organisms and consequential effects on species that rely upon them (high confidence).

Not exact matches

While NBC works on its traditional (and arguably calcified) «up close and personal» TV segments on prospective American Olympians, BuzzFeed was invited to film its own interviews.

In a similar spirit, in a widely - shared piece on progressive callout culture, Freddie DeBoer warned the left that «the prohibition against ever telling anyone to be friendlier and more forgiving is so powerful and calcified it's a permanent feature of today's progressivism.»

Two machines providing detection and automatic rejection of foreign body contaminants, such as glass slivers, plastics and calcified bones or rocks, are shown on the Eagle Product Inspection booth at PACK EXPO 2013.

By acting in the manner in which he acts, dressed in the manner in which he is dressed, Mr. Dean elevates even correct decisions into provocations, and in doing so acts as a lightning rod for all the unhappy seething and inchoate rage that might otherwise fester and calcify, or rain down on the players.

After taking a closer look with a scanning electron microscope, Bronson and Maisey reinterpreted that feature as tessellated calcified cartilage, found on both extinct and living sharks and rays.

Most studies have concluded that sea animals with calcified shells or skeletons, such as starfish, will suffer as carbon dioxide from burning fossil fuels dissolves in the sea, making the water more acidic and destroying the calcium carbonate on which the creatures depend.

Bloom of calcifying algae at the Barents Sea, documented by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA satellite AQUA.

Finally by noon on April 12, a faint light broke through, and the captain was struck by the thought that the Benares resembled nothing more than a giant calcified pumice stone.

Such calcified features, never before seen on a shark, blur the evolutionary boundaries between the earliest jawed fishes.

The study, published in Calcified Tissue International, found that the International Working Group on Sarcopenia (IWGS) definition identified the most cases of the condition (8.3 per cent of the cohort) and was linked with significantly higher numbers of falls in the last year and prevalent fractures.

The loss of competitive fitness in the calcifying alga had strong impacts on the ecosystem.

DNA recovered from calcified plaque on teeth from four Neandertal individuals suggest that those from the grasslands around Beligum's Spy cave ate woolly rhinoceros and wild sheep, while their counterparts from the forested El Sidrón cave in Spain consumed a menu of moss, mushrooms and pine nuts.

The study is based on a single cell of the calcifying alga from Raunefjord in Norway.

«On the opposite end of the spectrum, if you don't have any calcified plaque, our estimations indicate that use of aspirin would result in more harm than good, even if you have risk factors for heart disease such as high cholesterol or a family history of the disease.»

The single - celled calcifying alga that his research focuses on is called Emiliania huxleyi.

«There have been a lot of studies showing that under ocean acidification scenarios that corals and other organisms on the reef calcify at a slower rate,» Kline says.

You can have a differential impact on biology and chemistry, so if you really want to assess what will be the status of calcifying organisms in 2100 there is one part, the chemistry, for which the organisms have no control but for the biology they can perhaps adapt and there might be a way for the organisms to mitigate the negative impacts of ocean acidification.

In the Nature study you state that previous work has not determined the impact of acidification on the ability of individual species to calcify because they measured net calcification (that is, gross calcification minus dissolution) thus failing to disentangle the relative contributions of gross calcification (the amount of carbonate deposited by an animal over time) and dissolution rates.

Since you state that a decrease in net calcification could result from a decrease in gross calcification, an increase in dissolution rates, or both, you distinguish between these responses and get to the conclusion that the impact of ocean acidification on a creature's net calcification may be largely controlled by the status of its protective organic cover and that the net slowdown in skeletal growth under increased CO2 occurs not because these organisms are unable to calcify, but rather because their unprotected skeleton is dissolving faster.

I have a 17 yrs old cousin on my mom's side who just had to have his thyroid removed because it was not only enlarged, but calcified.

Osteocalcin triggers a mechanism that stimulates growth of new dentin, which is the calcified tissue underneath the enamel on your teeth (21, 22).

It is easy to understand why this thought: by the time you have acute pain attacks, some stones are in the gallbladder, are big enough and sufficiently calcified to see on X-ray, and have caused inflammation there.

In hindsight, the 1984 hit Footloose — starring Kevin Bacon and directed by Herbert Ross — along with its contemporary Flashdance, can be seen as the link between the old Hollywood model of a let's - put - on - a-show musical, based on original songs brought to life in elaborate choreographed numbers, and the later Hollywood model of youth films, perfected in the»80s by John Hughes and terminally calcified over the decades to follow, in which a contemporary pop music soundtrack serves as both a structural backbone to the film itself and an ancillary product that can outgross and outlive the film that spawned it.

Once again beginning with a couple on the verge of severing ties (though this time the separation has calcified into divorce), intertwining character arcs unveil an overly complicated scenario that unfortunately brings us to a finale that seems a bit little too late.

The entire Baja 1000 is held on a rat's nest of roads that range from heavily trafficked dust farm roads to mountainous ridges that were nearly calcified over thanks to fallen rock and gravel.

But its sunny exterior conceals some sharp observations on human vulnerability and how easily self - preservation can calcify into mere selfishness.

As normal growth occurs the cartilage on the end of long bones (humerus, femur) must ossify / calcify or turn into bone.

Doing so will ensure your dog will key in on the scent of the calcified bone of the antler, not a foreign scent.

In some cases the cartilage flap calcifies and becomes visible on X-rays.

On the effects on calcification: It is expected that calcifying organisms will find it more difficult to produce and maintain their shells and hard structureOn the effects on calcification: It is expected that calcifying organisms will find it more difficult to produce and maintain their shells and hard structureon calcification: It is expected that calcifying organisms will find it more difficult to produce and maintain their shells and hard structures.

However, the lack of a clear understanding of the mechanisms of calcification and its metabolic or structural function means that it is difficult, at present, to reliably predict the full consequences of CO2 - induced ocean acidification on the physiological and ecological fitness of calcifying organisms.

''... worked with two sediment cores they extracted from the seabed of the eastern Norwegian Sea, developing a 1000 - year proxy temperature record «based on measurements of δ18O in Neogloboquadrina pachyderma, a planktonic foraminifer that calcifies at relatively shallow depths within the Atlantic waters of the eastern Norwegian Sea during late summer,» which they compared with the temporal histories of various proxies of concomitant solar activity... This work revealed, as the seven scientists describe it, that «the lowest isotope values (highest temperatures) of the last millennium are seen ~ 1100 - 1300 A.D., during the Medieval Climate Anomaly, and again after ~ 1950 A.D.» In between these two warm intervals, of course, were the colder temperatures of the Little Ice Age, when oscillatory thermal minima occurred at the times of the Dalton, Maunder, Sporer and Wolf solar minima, such that the δ18O proxy record of near - surface water temperature was found to be «robustly and near - synchronously correlated with various proxies of solar variability spanning the last millennium,» with decade - to century - scale temperature variability of 1 to 2 °C magnitude.»

Large - scale impacts on pteropods and other calcifying organisms that form the base of the marine food chain could distress populations of larger fish that feed on them, leading to significant economic impacts on the multi-billion dollar U.S. seafood industry.

The WGC has been created to ensure that a wider range of perspectives is brought to bear on geoengineering questions, before the terms of any debate are calcified and battle lines drawn.

Depends on what scenerio is used — and on the rate of dissolution of calcifying organisms as they sink to the ocean floor.

«Since the publication of two reports in 2005 — 2006 [1], [2], the drive to forecast the effects of anthropogenic ocean acidification (OA) on marine ecosystems and their resident calcifying marine organisms has resulted in a growing body of research.

If that will have any impact on sea life is doubtful as the main calcifying organisms evolved at much higher CO2 levels during the Cretaceous, witnessed by the white cliffs of Dover and many such places all over the world...