Soil labile organic carbon and soil enzymes play important roles in the carbon cycle of coastal wetlands that have high organic carbon accumulation rates. Soils under three vegetations (Phragmites australis, Spartina alterniflora, and Scirpusm mariqueter) as well as bare mudflat in Hangzhou Bay wetland of China were collected seasonally. Seasonal dynamics and correlations of soil labile organic...

We report on a detailed study of the dependence of the vibrational modes in rapid thermal chemical vapor deposited Si1−x−yGexCy films on the substitutional carbon concentration. Si1−x−yGexCy films were investigated using Raman and infrared spectroscopy with x varying in the range of 10%–16% and y in the range of 0%–1.8%. The introduction of C into thin SiGe layers reduces the average lattice co...

Capnography has been studied for decades as a potential diagnostic tool for suspected pulmonary embolism. Despite technological refinements and its combination with other non-invasive instruments, no evidence to date allows recommending the use of expired carbon dioxide measurement as a rule-out test for pulmonary embolism without additional radiological testing. Further investigations are, how...

End tidal carbon dioxide measurement with an electro acoustic sensor has recently been demonstrated. The sensor consists of an acoustic resonator coupled to a low cost electro acoustic element. The aim of this study was to verify if ambient temperature variation would affect the measurements. By simultaneous measurements with a reference sensor, the electro acoustic capnograph was tested on sub...

Intra-population niche differences in generalist foragers have captured the interest of ecologists, because such individuality can have important ecological and evolutionary implications. Few researchers have investigated how these differences affect the relationships among ecologically similar, sympatric species. Using stable isotopes, stomach contents, morphology and habitat preference, we ex...

Radiative equilibrium and radiative (:onvective temperature profiles fiw the Earth's evolving atmosphere have been cah.ulated. If the atmosphere evolved from one rich in carbon dioxide, and deficient in oxygen, to its present composilion, the temperature structure showed considerable change. The models of 3 to 4 billi(m years ago display steadily decreasing temperatures with altitude, being 185...

hydrogel nanocomposites based on alginate polysaccharide were prepared by graft copolymerization of acrylamide and itaconic acid in the presence of carbon nanotube, using methylene bisacrylamide and ammonium persulfate as crosslinker and initiator, respectively. the synthesized samples were characterized by infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy. the ...

conclusions the authors described their anesthetic experience of profound metabolic alkalosis with complex electrolyte abnormalities and provided a review of relevant literature. case presentation a 34-year-old female visited gachon university gil medical center, incheon, south korea during year 2015. she experienced aggravated renal function due to chronic hypokalemia and severe hypochloremic ...