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Answering your questions on odd urine specific gravities, sendout handling fees, osmotic fragility method, and blood culture contamination rate. (Tips from the clinical experts).(Brief Article)
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Odd urine specific gravities
Q: In our lab, when we have a specific gravity
<1.005, we check it out on a refractometer and then accept the refractometer results. Recently we have encountered a few specimens with negative glucose and negative protein that give refractometer results> 1.035 -- not just a little, but a lot. Two recent results were 1.092 and 1.104. Our policy is to dilute the urine with distilled water and repeat the test on the refractometer. Is there a drug or perhaps something used in x-ray testing that might cause such results? The patients did have radiologic procedures using contrast dyes. We use a Bayer Clinitek 200 for our dipstick testing.
A: When specific gravity readings greater than 1.035 by refractometer, accompanied by normal ...
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Early bird put in new perspective Archaeopteryx study suggests predecessor
Newspaper article from: International Herald Tribune
; ...2004 Scientists have determined that Archaeopteryx, the earliest known bird, was definitely...first flying birds predecessors of Archaeopteryx have never been found. The researchers...ear of a 147-million-year-old Archaeopteryx specimen. They found that in size...
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Archaeopteryx was less bird like, more like dinos.
News Wire article from: Asian News International
; ...A new research has shown that the Archaeopteryx, which has long been considered the...the famously feathered fossil of the archaeopteryx grew much slower than living birds...like non-avian dinosaurs. The first Archaeopteryx skeleton was found in Munich, Germany...
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New view: fossil offers novel look at an ancient bird.(archaeopteryx)
Magazine article from: Science News
; ...150-million-year-old creature, Archaeopteryx, as well as other birds, evolved...Many studies of previously described Archaeopteryx fossils, especially cranial scans...new fossil, only the 10th example of Archaeopteryx and its close relatives, is one of...
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Archaeopteryx Fossil Had Dinosaur Feet
News Wire article from: AP Online
; ...Dateline: WASHINGTON A new analysis of Archaeopteryx, the earliest known birdlike animal...all scientists agree, many consider Archaeopteryx the first bird, since it had wings...that the first toe was not reversed in Archaeopteryx, as is the case on current birds...
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New archaeopteryx fossil shows feet more like dinosaurs than birds
News Wire article from: AP Worldstream
; ...Dateline: WASHINGTON A new analysis of Archaeopteryx, the earliest known birdlike animal...all scientists agree, many consider Archaeopteryx the first bird, since it had wings...that the first toe was not reversed in Archaeopteryx, as is the case on current birds...
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Bird brain?Cranial scan of fossil hints at flight capability.(Bird Brain?)(Archaeopteryx)
Magazine article from: Science News
; ...of the fossilized brain-case of an Archaeopteryx shows that several features of the...modern birds. Many scientists consider Archaeopteryx, which lived about 147 million years...skull that houses the brain of the Archaeopteryx specimen from the Natural History Museum...
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Science: tell me about ... Archaeopteryx
Newspaper article from: The Independent - London
; ...that already, from the fossils of the Archaeopteryx - which people usually think of as...are descended? The first thing about Archaeopteryx is that it describes a genus, not...they definitely show that they did. Archaeopteryx had teeth in both jaws, a long, feathered...
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Structure and function of hindlimb feathers in Archaeopteryx lithographica
Magazine article from: Paleobiology
; ...and function of hindlimb plumage in Archaeopteryx lithographica. Feathers cover the...airfoils. A new reconstruction of Archaeopteryx is presented, in which the hindlimbs...four-winged" planform in both Archaeopteryx and basal Dromaeosauridae indicates...
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TAKING WING: ARCHAEOPTERYX AND THE EVOLUTION OF BIRD FLIGHT.(Review)
Magazine article from: Wilson Bulletin
; TAKING WING: ARCHAEOPTERYX AND THE EVOLUTION OF BIRD FLIGHT...data is reevaluated. The story of Archaeopteryx is a timeless classic. Written...isolated feather) known to science as Archaeopteryx, which at approximately 150 million...
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EAR ANALYSIS SUGGESTS ARCHAEOPTERYX WAS MORE BIRDLIKE THAN REPTILIAN
News Wire article from: The Hindustan Times
; ...suggested that the earliest known bird, Archaeopteryx, had a similar hearing range to the...reptiles may have heard and found that Archaeopteryx had an average hearing range of approximately...their extinct relatives, including Archaeopteryx," he added. According to Angela...
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