نتایج جستجو برای: carbonate sands
تعداد نتایج: 28887 فیلتر نتایج به سال:
BACKGROUND Sevelamer carbonate is an improved, buffered form of sevelamer hydrochloride developed for the treatment of hyperphosphataemia in CKD patients. Sevelamer carbonate formulated as a powder for oral suspension presents a novel, patient-friendly alternative to tablet phosphate binders. This study compared the safety and efficacy of sevelamer carbonate powder with sevelamer hydrochloride ...
Kurek et al. (1) provide a valuable contribution concerning oil sands development. The authors should also be congratulated for not drawing irresponsible inferences about human cancer risks from polycyclic aromatic hydrocarbons (PAHs) and for accurately reporting substantially lower PAH contamination of sediments for their study lakes vs. popular Alberta recreational lakes:Wabamun, Pigeon, and ...
Authigenic carbonate was recently invoked as a third major global carbon sink in addition to primary marine carbonate and organic carbon. Distinguishing the two carbonate sinks is fundamental to our understanding of Earth's carbon cycle and its role in regulating the evolution of atmospheric oxygen. Here, using microscale geochemical measurements of carbonates in Early Triassic strata, we show ...
The Murray Basin in southeastern Australia is an intracratonic sedimentary basin of Cainozoic age that extends across 300 000 square kilometres of New South Wales, Victoria and South Australia. The upper sequences, principally the Loxton–Parilla Sands, Calivil Formation and Shepparton Formation, contain economic accumulations of heavy mineral sands; bentonite; kaolin; and gypsum. Mineral sands ...
Carbonate sediments have been deposited in oceans and seas from the Proterozoic up to the present day. Their palaeogeographic distribution, extent and composition changed substantially through time. Recent carbonate platforms are closely linked with reef constructions, but, during the past, non-reefal carbonate production played an important role in the periods of the depressed reef-growth (KIE...
BACKGROUND AND OBJECTIVES Increased inflammation and oxidative stress may be caused by proteins and lipids modified by cytotoxic advanced glycation end products (AGEs) in food. Restricting food containing elevated AGEs improves these risk factors in diabetic CKD. Because diet adherence can be problematic, this study aimed to remove cytotoxic AGEs from food already ingested and to determine whet...
BACKGROUND Genz-644470 is a new, nonabsorbed phosphate binding polymer. In an in vitro competitive phosphate binding assay, Genz-644470 bound significantly more phosphate per gram than sevelamer. As a consequence, this clinical study evaluated the ability of Genz-644470 to lower serum phosphorus in patients on hemodialysis and compared serum phosphorus lowering of Genz-644470 with sevelamer car...
The purpose of the work is to establish ecological situation in pasture phytocomplexes Don basin. objects research were plant communities on floodplain sod-meadow granular soils and sands Ilovlinsky massif Volgograd region. occurrence species Drude scale, vital state plants, projective cover vegetation, feed mass consumed determined. It established that main vegetation oppressed or a satisfacto...
Introduction: The Miniature Thermal Emission Spectrometer (Mini-TES) instrument aboard the Mars Exploration Rover Opportunity has been used to acquire thousands of spectra from the surface of Merid-iani Planum [1]. The Mini-TES measures thermal in-frared energy at a similar spectral resolution and range to that of the Thermal Emission Spectrometer (TES) aboard the Mars Global Surveyor orbiting ...
Abstract. Thapsus was one of the Roman Empire's largest harbors and is situated next to an easily defended promontory on Tunisia's coast in northern Africa. It provided with a huge stone cement breakwater mole that extended almost 1 km into sea. We examined sedimentological micropaleontological proxies from 14C-dated core material shifts microfauna macrofauna community structure infer patterns ...
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