Academic literature on the topic 'Cell sinking'

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Journal articles on the topic "Cell sinking"

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Walsby, Anthony E., Patricia Lihou, and Juliet Roper. "Variation in sinking velocity and cell size of Microcystis sp." Algological Studies/Archiv für Hydrobiologie, Supplement Volumes 121 (October 1, 2006): 91–105. http://dx.doi.org/10.1127/1864-1318/2006/0121-0091.

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Gemmell, Brad J., Genesok Oh, Edward J. Buskey, and Tracy A. Villareal. "Dynamic sinking behaviour in marine phytoplankton: rapid changes in buoyancy may aid in nutrient uptake." Proceedings of the Royal Society B: Biological Sciences 283, no. 1840 (2016): 20161126. http://dx.doi.org/10.1098/rspb.2016.1126.

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Phytoplankton sinking is an important property that can determine community composition in the photic zone and material loss to the deep ocean. To date, studies of diatom suspension have relied on bulk measurements with assumptions that bulk rates adequately capture the essential characteristics of diatom sinking. However, recent work has illustrated that individual diatom sinking rates vary considerably from the mean bulk rate. In this study, we apply high-resolution optical techniques, individual-based observations of diatom sinking and a recently developed method of flow visualization aroun
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Moissoglu, Konstadinos, Ritankar Majumdar, and Carole A. Parent. "Cell Migration: Sinking in a Gradient." Current Biology 24, no. 1 (2014): R23—R25. http://dx.doi.org/10.1016/j.cub.2013.10.075.

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Waite, A., A. Fisher, PA Thompson, and PJ Harrison. "Sinking rate versus cell volume relationships illuminate sinking rate control mechanisms in marine diatoms." Marine Ecology Progress Series 157 (1997): 97–108. http://dx.doi.org/10.3354/meps157097.

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Font-Muñoz, Joan S., Raphaël Jeanneret, Jorge Arrieta, et al. "Collective sinking promotes selective cell pairing in planktonic pennate diatoms." Proceedings of the National Academy of Sciences 116, no. 32 (2019): 15997–6002. http://dx.doi.org/10.1073/pnas.1904837116.

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Finding a partner in an inherently unsteady 3-dimensional system, such as the planktonic marine environment, is a difficult task for nonswimming organisms with poor control over their orientation. We experimentally investigate the process of cell pairing in pennate marine diatoms and present field evidence of its occurrence in the ocean. We describe the mechanism as a 3-step process in which pennate diatoms (i) vertically reorient while sinking from surface turbulent waters to a more stable environment (i.e., under the seasonal pycnocline), (ii) segregate from incompatible partners (e.g., dead
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Edwards, Bethanie R., Kay D. Bidle, and Benjamin A. S. Van Mooy. "Dose-dependent regulation of microbial activity on sinking particles by polyunsaturated aldehydes: Implications for the carbon cycle." Proceedings of the National Academy of Sciences 112, no. 19 (2015): 5909–14. http://dx.doi.org/10.1073/pnas.1422664112.

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Diatoms and other phytoplankton play a crucial role in the global carbon cycle, fixing CO2into organic carbon, which may then be exported to depth via sinking particles. The molecular diversity of this organic carbon is vast and many highly bioactive molecules have been identified. Polyunsaturated aldehydes (PUAs) are bioactive on various levels of the marine food web, and yet the potential for these molecules to affect the fate of organic carbon produced by diatoms remains an open question. In this study, the effects of PUAs on the natural microbial assemblages associated with sinking particl
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Gabric, AJ, and J. Parslow. "Effect of physical factors on the vertical distribution of Phytoplankton in Eutrophic Coastal waters." Marine and Freshwater Research 40, no. 5 (1989): 559. http://dx.doi.org/10.1071/mf9890559.

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A new analytical model for the vertical distribution of phytoplankton in shallow, turbid waters is presented. The effects of vertical mixing, light-attenuated growth and algal-cell sinking rates are included. The two cases of a finite-depth water column and a mixed layer are investigated. The results for negatively buoyant cells suggest that concentration maxima can occur above the sea bed for either strong or weak mixing in a mixed layer but are always at the bed in finite-depth waters. Large-celled species with high sinking rates are least sustainable in stable water columns, especially a we
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Sciascia, R., S. De Monte, and A. Provenzale. "Physics of sinking and selection of plankton cell size." Physics Letters A 377, no. 6 (2013): 467–72. http://dx.doi.org/10.1016/j.physleta.2012.12.020.

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Liao, Huarui, and Jie Zhu. "Research Progress on Shengxian Decoction in the Treatment of Non-Small Cell Lung Cancer." Journal of Contemporary Medical Practice 6, no. 12 (2024): 88–94. https://doi.org/10.53469/jcmp.2024.06(12).18.

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Lung cancer has the highest incidence and mortality rates among malignant tumors in China, with non-small cell lung cancer (NSCLC) accounting for 80%-85% of lung cancer cases. In recent years, treatment methods such as surgery, radiotherapy, and chemotherapy have advanced significantly; however, issues such as numerous complications, severe side effects, and increased drug resistance remain. Traditional Chinese Medicine (TCM) offers a multi-component, multi-target, and multi-pathway approach for treating NSCLC without these drawbacks, which has attracted considerable attention. The fundamental
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OOYA, MAYUMI, YOSHIHIRO MOGAMI, AKEMI IZUMIKUROTANI, and SHOJI A. BABA. "GRAVITY-INDUCED CHANGES IN PROPULSION OF PARAMECIUM CAUDATUM: A POSSIBLE ROLE OF GRAVIRECEPTION IN PROTOZOAN BEHAVIOUR." Journal of Experimental Biology 163, no. 1 (1992): 153–67. http://dx.doi.org/10.1242/jeb.163.1.153.

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The swimming behaviour of Paramecium was analyzed under natural and experimental hypergravity conditions. Paramecium that swam upwards (in the opposite direction to the gravitational force) along a straight path (straight swimmers) swam more slowly than those swimming downwards. This dependence of the swimming velocity on its direction relative to gravity can be partly interpreted as the consequence of sinking due to gravity if the propulsive force does not vary. The effect was different for Paramecium swimming along a circular path (curved swimmers). The difference in velocity between those s
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Books on the topic "Cell sinking"

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Behera, Swadhin, and Toshio Yamagata. Climate Dynamics of ENSO Modoki Phenomena. Oxford University Press, 2018. http://dx.doi.org/10.1093/acrefore/9780190228620.013.612.

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The El Niño Modoki/La Niña Modoki (ENSO Modoki) is a newly acknowledged face of ocean-atmosphere coupled variability in the tropical Pacific Ocean. The oceanic and atmospheric conditions associated with the El Niño Modoki are different from that of canonical El Niño, which is extensively studied for its dynamics and worldwide impacts. A typical El Niño event is marked by a warm anomaly of sea surface temperature (SST) in the equatorial eastern Pacific. Because of the associated changes in the surface winds and the weakening of coastal upwelling, the coasts of South America suffer from widespre
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Book chapters on the topic "Cell sinking"

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Steane, Andrew. "SINKING THE SELFISH GENE." In Liberating Science: The Early Universe, Evolution and the Public Voice of Science. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780198878551.003.0012.

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Abstract The text now turns to evolutionary biology. The overall process of neo-Darwinian evolution is discussed, especially with a view to bringing out elements which have been omitted in much of modern discourse. It is argued that, in his book The Selfish Gene, Richard Dawkins has mixed up teleology with causation, and consequently major parts of the argument of that book are flawed. Also, the logic of negotiation, along with that of competition, is highly influential in evolution and ought not to be overlooked. Finally, the relation of genome to cell is not simply one of controller to contr
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Conference papers on the topic "Cell sinking"

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Kozak, Y., T. Rozenfeld, and G. Ziskind. "Analysis of a Latent Heat Storage Device With Radial Fins." In ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/es2013-18103.

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Phase-change materials (PCMs) can store large amounts of heat without significant change of their temperature during the phase-change process. This effect may be utilized in thermal energy storage, especially for solar-thermal power plants. In order to enhance the rate of heat transfer into PCMs, one of the most common methods is the use of fins which increase the heat transfer area that is in contact with the PCM. The present work deals with a latent heat thermal storage device that uses a finned tube with an array of radial fins. A heat transfer fluid (HTF) flows through the tube and heat is
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Duan, Yuping, S. F. Hosseinizadeh, and J. M. Khodadadi. "Effect of an Insulated Baffle on Pseudosteady-State Natural Convection Inside Spherical Containers." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32340.

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The effect of an insulated thin baffle on pseudosteady-state natural convection within spherical containers is studied computationally. The computations are based on an iterative, finite-volume numerical procedure using primitive dependent variables, whereby the time-dependent, two-dimensional axisymmetric form of the governing continuity, momentum and energy equations are solved. Natural convection effect is modeled via the Boussinesq approximation. Parametric studies were performed for a Prandtl number of 0.7. For Rayleigh numbers of 104, 105, 106 and 107, baffles with 3 lengths positioned a
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Hosseinizadeh, S. F., Yuping Duan, and J. M. Khodadadi. "Effect of an Isothermal Baffle on Pseudosteady-State Natural Convection Inside Spherical Containers." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32341.

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The influence of an isothermal thin baffle on pseudosteady-state natural convection within spherical containers is studied computationally. The computations are based on an iterative, finite-volume numerical procedure using primitive dependent variables, whereby the time-dependent, two-dimensional axisymmetric form of the governing continuity, momentum and energy equations are solved. Natural convection effect is modeled via the Boussinesq approximation. Parametric studies were performed for a Prandtl number of 0.7. For Rayleigh numbers of 104, 105, 106 and 107, baffles with 3 lengths position
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Rozenfeld, A., Y. Kozak, T. Rozenfeld, and G. Ziskind. "A Novel Double-Pipe Heat Storage Unit." In ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-7394.

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This research is an experimental investigation of a double-pipe heat storage unit. The inner pipe of the unit, through which a heat-transfer fluid (HTF) is supplied, is made of aluminum and has an outer helix-like fin. The annular space between the pipes is filled with a phase change material (PCM). Actually, this research presents a novel design of the heat storage unit, which, unlike traditional designs with e.g. radial (circumferential) or longitudinal fins, has a single fin which does not divide the shell volume into separated cells. Moreover, this research focuses on close-contact melting
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Hoorelbeke, Jean-Michel, Joël Chupeau, Jean Loubrieu, Jean-Baptiste Poisson, and Richard Poisson. "The Research in France on Disposal Concepts for High Level and Long Lived Radioactive Waste in Deep Clay Formation." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1292.

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Abstract The 15 year research on high level and long lived radioactive waste disposal in deep geological formations is being carried out by the ANDRA within the framework of the 1991 law. The status of the research program corresponds to the sinking of the shafts of the Meuse/Haute-Marne Underground Research Laboratory in an argilite layer. A set of preliminary concepts associated to this argillite layer has been studied to help address the issues raised by the feasibility analysis of a potential repository with respect to safety objectives. These concepts deal with transuranic no heat emittin
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Bartolini, Lorenzo, Lorenzo Marchionni, Antonio Parrella, and Luigino Vitali. "Advanced FE Modelling Approach for Pipeline Hooking Interaction of Dragged Anchors." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77473.

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Offshore pipelines, located in areas with high/medium ship traffic, are exposed to threats such as dragged anchors, dropped objects, sinking ships, etc.. In the last years, there have been a few accidents where subsea pipelines or cables have been hooked and damaged by dragged anchors. These incidents have been caused both by emergency and accidentally dragged anchors. Two of the most serious incidents to pipelines caused by an accidentally dragged anchor involved the Trans Mediterranean gas pipelines in 2008 and the Kvitebjørn gas pipeline in the North Sea in 2007. The interaction mechanism b
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