Results 251 to 260 of about 229,036 (285)

Effects of soil gas permeability and recirculation flux on soil CO2 flux measurements performed using a closed dynamic accumulation chamber

Chemical Geology, 2009
Dynamic accumulation chamber methods have been extensively used to estimate the total output of CO2 released from active volcanic area. In order to asses the performance and reliability of a closed dynamic system several tests were carried out with ...
Sérgio Gurrieri, M Valenza
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FUNCTIONAL PROPERTIES OF POLYMORPHONUCLEAR LEUKOCYTES ACCUMULATED IN A SKIN CHAMBER

Acta Pathologica Microbiologica Scandinavica Series C: Immunology, 1985
Polymorphonuclear leukocytes harvested from a skin chamber were compared with peripheral blood leukocytes by examining their migration under agarose, their bactericidal capacity and their chemiluminescence. The chamber leukocytes were chemotactically de‐activated and their bactericidal capacity reduced.
A, Scheja, A, Forsgren
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Accumulation of Cholesterol Crystals in Diffusion Chambers implanted in Mice

Nature, 1964
IN a recent report, Rose1 described the appearance in tissue cultures of crystals which were ‘helical, tubular, ribbon-like, hexagonal, rhomboidal and filamentous’ in shape. He was unable to identify the nature of the crystals by cytochemical techniques.
Shelton, E, Otani, T T, Fales, H M
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Clonally accumulating T cells in the anterior chamber of Behçet disease

American Journal of Ophthalmology, 2000
To clarify the nature of infiltrating T cells into the anterior chamber of a patient with Behçet disease.Aqueous humor was obtained from a patient with ocular Behçet disease by paracentesis. RNA isolated from the cells in aqueous humor was reverse transcribed into complementary DNA. Complementary DNA encoding the variable (V) diversity (D) joining (J) (
H, Keino, J, Sakai, K, Nishioka, T, Sumida, M, Usui   +4 more
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Geometric design of microfluidic chambers: platelet adhesion versus accumulation

Biomedical Microdevices, 2013
Arterial, platelet-rich thrombosis depends on shear rates and integrin binding to either a collagen surface or to the growing thrombus, which are mechanistically different. In general, small microfluidic test sections may favor platelet-surface adhesion without testing for the primary mode of intra-arterial thrombosis, i.e.
Lauren D C, Casa, David N, Ku
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Magma Emplacement and Accumulation: From Sills to Magma Chambers

2021
The previous chapter has discussed the rise of magma throughout the crust. This fourth chapter focuses on the arrest, emplacement and accumulation of magma. These are indeed primary and widespread processes at volcanoes, as most of the rising magma remains stalled in the crust, with only a fraction being erupted (approximately one tenth; e.g., Shaw ...
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Neuronotrophic activities accumulate in vivo within silicone nerve regeneration chambers

Brain Research, 1983
Abstract Rat sciatic nerves can be transected and their proximal and distal stumps sutured into the openings of cylindrical silicone chambers. Anatomical regeneration has been demonstrated across 10 mm long chambers containing both stumps, although little or no axonal outgrowth occurs in chambers omitting the distal stump or exceeding the 10 mm ...
F M, Longo, M, Manthorpe, S D, Skaper, G, Lundborg, S, Varon   +4 more
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Temporal changes of neuronotrophic activities accumulating in vivo within nerve regeneration chambers

Experimental Neurology, 1983
The presence of neuronotrophic factors (NTFs) in noninjured sciatic nerve extract and the course of their accumulation from 3 h to 30 days after nerve transection was examined. Rat sciatic nerves were transected and their proximal and distal stumps sutured into the openings of cylindrical silicone chambers leaving a 10-mm interstump gap.
F M, Longo, S D, Skaper, M, Manthorpe, L R, Williams, G, Lundborg, S, Varon   +5 more
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Portable accumulation chambers for measuring enteric methane in cattle

Breeding has been shown to be a viable solution for reducing methane emissions in ruminants but requires obtaining on-farm measurements of methane. One technology that has successfully been used on-farm to obtain short-term commercial methane measurements in sheep and goats is portable accumulation chambers (PAC).
Bilton, Timothy, Hickey, Sharon, Searle, Andrew, Hampton, Ian, Booker, Fern, Rodgers, Colin, Sevier, Scott, Gebbie, Steve, Dodds, Ken, Jenkins, Gemma, Archer, Jason, McEwan, John, Rowe, Suzanne   +12 more
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A straw chambers’ tracker for the high rate experiment 835 at the Fermilab accumulator

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1998
Abstract Two layers of proportional drift tubes (aluminum mylar straws) are staggered in two cylindrical light chambers to measure charged particles’ azimuthal angle. To stand the high rates (∼10 kHz / cm 2 ) and minimize the pile-up of the high luminosity experiment 835 at FNAL, a fast ASIC Amplifier-Shaper-Discriminator (ASD-8B ...
S Bagnasco, G Dughera, G Giraudo, G Govi, F Marchetto, E Menichetti, N Pastrone, P Rumerio, P.P Trapani   +8 more
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