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Journal articles on the topic 'Cryo brines'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Möhlmann, D. "The three types of liquid water in the surface of present Mars." International Journal of Astrobiology 9, no. 1 (2009): 45–49. http://dx.doi.org/10.1017/s147355040999036x.

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AbstractThermodynamics teaches that pure liquid bulk water cannot stably exist on the surface of Mars. However, it is shown by thermodynamic arguments that liquid water can exist, at least temporarily, in the upper surface of Mars, in form of: (a) undercooled liquid interfacial water (ULI water); (b) undercooled liquid water in cryo-brines; and (c) liquid bulk water (due to solid-state greenhouse subsurface melting) in the subsurface of ice areas, which are covered by a lid of solid ice only. The presence of these forms of liquid water on present Mars is discussed in detail and in view of the
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2

Liu, Lu, Yuanxin Yao, Xuebing Zhou, Yanan Zhang, and Deqing Liang. "Improved Formation Kinetics of Carbon Dioxide Hydrate in Brine Induced by Sodium Dodecyl Sulfate." Energies 14, no. 8 (2021): 2094. http://dx.doi.org/10.3390/en14082094.

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Due to high efficiency and low cost, hydrate-based desalination is investigated as a pretreatment method for seawater desalination. To improve the formation rate of hydrates, the effect of sodium dodecyl sulfate (SDS) on CO2 hydrate formation from a 3.5 wt.% NaCl solution was measured at 275 K and 3 MPa. X-ray diffraction (XRD) and cryo-scanning electron microscopy (cryo-SEM) were used to measure the crystal structure and micromorphology of the formed hydrates. The results showed that the induction time of CO2 hydrate formation reduced from 32 to 2 min when SDS concentration increased from 0.0
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3

Tsegaye, Solomon, Gobena Dedefo, and Mohammed Mehdi. "Biophysical applications in structural and molecular biology." Biological Chemistry 402, no. 10 (2021): 1155–77. http://dx.doi.org/10.1515/hsz-2021-0232.

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Abstract The main objective of structural biology is to model proteins and other biological macromolecules and link the structural information to function and dynamics. The biological functions of protein molecules and nucleic acids are inherently dependent on their conformational dynamics. Imaging of individual molecules and their dynamic characteristics is an ample source of knowledge that brings new insights about mechanisms of action. The atomic-resolution structural information on most of the biomolecules has been solved by biophysical techniques; either by X-ray diffraction in single cry
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4

Schmatz, Joyce, Jop Klaver, Mingze Jiang, and Janos L. Urai. "Nanoscale Morphology of Brine/Oil/Mineral Contacts in Connected Pores of Carbonate Reservoirs: Insights on Wettability From Cryo-BIB-SEM." SPE Journal 22, no. 05 (2017): 1374–84. http://dx.doi.org/10.2118/180049-pa.

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Summary We used broad-ion-beam slope cutting in combination with scanning electron microscopy undertaken under cryogenic conditions (Cryo-BIB-SEM) to study mineral/oil/brine contacts in reservoir carbonates. This direct-imaging method allows pore-scale investigation of in-situ fluids and their distributions down to the nanometer scale. In this study, we compare two types of carbonate reservoirs: a fine-grained Lixhe limestone (Belgium) and a coarse-grained limestone from the Maastricht area (The Netherlands). In both rock types, we first quantify the porosity with BIB-SEM and derive the spatia
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5

Bonnafous, Pierre, Marie Perrault, Olivier Le Bihan, et al. "Characterization of hepatitis C virus pseudoparticles by cryo-transmission electron microscopy using functionalized magnetic nanobeads." Journal of General Virology 91, no. 8 (2010): 1919–30. http://dx.doi.org/10.1099/vir.0.021071-0.

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Cell entry and membrane fusion of the hepatitis C virus (HCV) depend on its envelope glycoproteins E1 and E2. HCV pseudotyped particles (HCVpps) are relevant and popular models to study the early steps of the HCV life cycle. However, no structural characterization of HCVpp has been available so far. Using cryo-transmission electron microscopy (cryo-TEM), providing structural information at nanometric resolution, the molecular details of HCVpps and their fusion with liposomes were studied. Cryo-TEM revealed HCVpps as regular 100 nm spherical structures containing the dense retroviral nucleocaps
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6

Pogarskaya, Viktoriya, Olga Yurieva, Aleksey Pogarskiy, Kateryna Balabai, and Nadiya Maksymova. "Development of a method for producing new generation of protein snacks using the processes of cryo and mechanical distruction." EUREKA: Life Sciences, no. 3 (May 31, 2021): 46–52. http://dx.doi.org/10.21303/2504-5695.2021.001877.

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The aim of research is to develop a method for the production of a new generation of protein snacks using a protein vegetable and milk base and vegetable fortifiers from spicy and carotene-containing vegetables using cryo and mechanical destruction processes. The method is based on the use of a deep processing method as an innovation, which consists in a complex effect on vegetable and protein raw materials of cryo and mechanical destruction processes in modern quick-freezing and low-temperature crushing equipment. The proposed method allows to get new protein snacks with a high content of pro
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7

Nahar, Ummey Jannatun, and Shah Marzia Mahjabin Lina. "Evaluation of antioxidant activity and cytotoxic potential of Cryp-tocoryne ciliata." International Current Pharmaceutical Journal 2, no. 2 (2013): 38–41. http://dx.doi.org/10.3329/icpj.v2i2.13196.

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Cryptocoryne ciliata belonging to the Araceae family has been investigated for isolation of its secondary metabolites and evaluation of biological activities of the crude extractives with special emphasis to the antioxidant activity and brine shrimp lethality bioassay. The whole plant was extracted with methanol and concentrated extract was partitioned using petroleum ether, carbon tetrachloride and ethyl acetate. Aqueous soluble fraction of the methanolic extract showed the highest antioxidant activity. The carbon tetrachloride soluble fraction of the methanolic extract and the ethyl acetate
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8

Martin, Raoul, Tiancong Qi, Haibo Zhang, et al. "Structure of the activated ROQ1 resistosome directly recognizing the pathogen effector XopQ." Science 370, no. 6521 (2020): eabd9993. http://dx.doi.org/10.1126/science.abd9993.

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Plants and animals detect pathogen infection using intracellular nucleotide-binding leucine-rich repeat receptors (NLRs) that directly or indirectly recognize pathogen effectors and activate an immune response. How effector sensing triggers NLR activation remains poorly understood. Here we describe the 3.8-angstrom-resolution cryo–electron microscopy structure of the activated ROQ1 (recognition of XopQ 1), an NLR native to Nicotiana benthamiana with a Toll-like interleukin-1 receptor (TIR) domain bound to the Xanthomonaseuvesicatoria effector XopQ (Xanthomonas outer protein Q). ROQ1 directly b
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9

Tian, Qing Chao, Xiao Ming Dong, and Qing An Zhang. "Electrochemical Behavior of Cu-Bearing CrMo Steel in H2S Saturated Aqueous Brine Solution." Key Engineering Materials 385-387 (July 2008): 121–24. http://dx.doi.org/10.4028/www.scientific.net/kem.385-387.121.

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Electrochemical measurement techniques were applied to investigate the polarization and hydrogen permeation behavior of Cu-bearing CrMo steel in a H2S saturated aqueous brine solution. The observation on microstructure and precipitate phases of the steel was conducted by transmission electron microscopy (TEM), and the corrosion product was investigated by using X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). It is disclosed that copper addition could effectively influence the electrochemical behavior of the investigated steel, and the
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10

DESBOIS, G., J. L. URAI, C. BURKHARDT, M. R. DRURY, M. HAYLES, and B. HUMBEL. "Cryogenic vitrification and 3D serial sectioning using high resolution cryo-FIB SEM technology for brine-filled grain boundaries in halite: first results." Geofluids 8, no. 1 (2008): 60–72. http://dx.doi.org/10.1111/j.1468-8123.2007.00205.x.

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11

Utec, Universidad Tecnológica de El Salvador. "¿Qué medidas considera indispensables en una estrategia económica para el próximo quinquenio?" Entorno, no. 31 (August 1, 2004): 14–15. http://dx.doi.org/10.5377/entorno.v0i31.7406.

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 Entrevistados: Héctor Dada Hirezi (Diputado CDU); Jorge Barraza Ibarra (UTEC); Javier Ibizate (UCA); Carlos Briones (FLACSO); Rafael Rodríguez Loucel (UTEC); Roberto Rubio (FUNDE). Humildemente vuelvo a citar mi artículo: Economía sin plan, sin mercado y sin autocrítica (ECA, junio 2003), por que al menos es bueno para criticarlo. Creo que hay que volver a los Planes de Desarrollo, estilo década de 1970, comenzando por decir la "verdad". El BCR acaba de editar la matriz 2000, que tal vez algo podría orientar. (La acabo de recibir, pero no he tenido tiempo de curiosearla). Viendo los aná
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12

Plimpton, Rebecca L., Jorge Cuéllar, Chun Wan J. Lai та ін. "Structures of the Gβ-CCT and PhLP1–Gβ-CCT complexes reveal a mechanism for G-protein β-subunit folding and Gβγ dimer assembly". Proceedings of the National Academy of Sciences 112, № 8 (2015): 2413–18. http://dx.doi.org/10.1073/pnas.1419595112.

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G-protein signaling depends on the ability of the individual subunits of the G-protein heterotrimer to assemble into a functional complex. Formation of the G-protein βγ (Gβγ) dimer is particularly challenging because it is an obligate dimer in which the individual subunits are unstable on their own. Recent studies have revealed an intricate chaperone system that brings Gβ and Gγ together. This system includes cytosolic chaperonin containing TCP-1 (CCT; also called TRiC) and its cochaperone phosducin-like protein 1 (PhLP1). Two key intermediates in the Gβγ assembly process, the Gβ-CCT and the P
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13

Đorđević, Ana. "“The soundtrack of their lives”: The Music of Crno-bijeli svijet." AM Journal of Art and Media Studies, no. 17 (October 16, 2018): 25. http://dx.doi.org/10.25038/am.v0i17.267.

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Crno-bijeli svijet [Black-White World, HRT, 2015–] is an on-going Croatian television series set in the early 1980s depicting the then-current pop music scene in Zagreb. The storyline follows several characters whose lives are intertwined by complex family relations, while also following the beginnings of new wave/punk rock bands and artists, and their influence on the Yugoslav youth who almost religiously listened to their music, like some of the series’ characters do.The role of music in television series is a complicated question that caught the attention of film music scholars in recent ye
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14

Swathi Kiranmayee, M., Abhay Kumar Jha, Sushant K. Manwatkar, et al. "Microstructural Characterisation of Copper-Stainless Steel Brazed Joint with Copper Based Filler Metal." Materials Science Forum 710 (January 2012): 650–55. http://dx.doi.org/10.4028/www.scientific.net/msf.710.650.

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Copper to stainless steel brazed components are used in the thrust chamber of cryogenic propulsion system of Indian Space Programme. Temperature and time play a major role in the optimization of brazing cycle. An effort has been made to study the influence of the above parameters and correlate with the microstructure and shear strength achieved. In the present work, brazing was performed using Cu based filler metal. Temperature selected was within the range of 1010-1045 °C for two different time durations (20 minutes and 30 minutes) under high vacuum (10-5 Torr). Extensive scanning electron mi
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15

Utec, Universidad Tecnológica de El Salvador. "¿Es necesario agotar esfuerzos para lograr un equilibrio fiscal?" Entorno, no. 31 (August 1, 2004): 12–13. http://dx.doi.org/10.5377/entorno.v0i31.7405.

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Entrevistados: Hector Dada Hirezi (Diputado CDU); Jorge Barraza Ibarra (UTEC); Javier Ibizate (UCA); Carlos Briones (FLACSO); Rafael Rodríguez Loucel (UTEC); Roberto Rubio (FUNDE). No creo que es posible llegar a corto plazo a un equilibrio fiscal. Lo que hay que generar es una política fiscal que conduzca progresivamente a cerrar las brechas existentes y que distribuya de forma más equitativa las cargas fiscales. Es urgente ponerse a trabajar por eso en forma concertada.Esto implica no sólo actuar en la parte de ingresos sino también en una mejor distribución geográfica, económica y social de
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16

Wang, Weiwei, A. Dominic Fortes, David P. Dobson, et al. "Investigation of high-pressure planetary ices by cryo-recovery. II. High-pressure apparatus, examples and a new high-pressure phase of MgSO4·5H2O." Journal of Applied Crystallography 51, no. 3 (2018): 692–705. http://dx.doi.org/10.1107/s1600576718003977.

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An apparatus is described for the compression of samples to ∼2 GPa at temperatures from 80 to 300 K, rapid chilling to 80 K whilst under load and subsequent recovery into liquid nitrogen after the load is released. In this way, a variety of quenchable high-pressure phases of many materials may be preserved for examination outside the high-pressure sample environment, with the principal benefit being the ability to obtain high-resolution powder diffraction data for phase identification and structure solution. The use of this apparatus, in combination with a newly developed cold-loadable low-tem
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17

Li, Yingcheng, Weidong Zhang, Bailing Kong, et al. "Mixtures of Anionic/Cationic Surfactants: A New Approach for Enhanced Oil Recovery in Low-Salinity, High-Temperature Sandstone Reservoir." SPE Journal 21, no. 04 (2016): 1164–77. http://dx.doi.org/10.2118/169051-pa.

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Summary Test results indicate that a lipophilic surfactant can be designed by mixing both hydrophilic anionic and cationic surfactants, which broaden the design of novel surfactant methodology and application scope for conventional chemical enhanced-oil-recovery (EOR) methods. These mixtures produced ultralow critical micelle concentrations (CMCs), ultralow interfacial tension (IFT), and high oil solubilization that promote high tertiary oil recovery. Mixtures of anionic and cationic surfactants with molar excess of anionic surfactant for EOR applications in sandstone reservoirs are described
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18

Menard, Lynda M., Neil B. Wood, and Jim O. Vigoreaux. "Contiguity and Structural Impacts of a Non-Myosin Protein within the Thick Filament Myosin Layers." Biology 10, no. 7 (2021): 613. http://dx.doi.org/10.3390/biology10070613.

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Myosin dimers arranged in layers and interspersed with non-myosin densities have been described by cryo-EM 3D reconstruction of the thick filament in Lethocerus at 5.5 Å resolution. One of the non-myosin densities, denoted the ‘red density’, is hypothesized to be flightin, an LMM-binding protein essential to the structure and function of Drosophila indirect flight muscle (IFM). Here, we build upon the 3D reconstruction results specific to the red density and its engagement with the myosin coiled-coil rods that form the backbone of the thick filament. Each independent red density winds its way
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19

Rybalov, O. V., I. Yu Lytovchenko, S. V. Kolomiets, and V. L. Prochankina. "DEONTOLOGY AND PROFESSIONAL ETHICS IN DENTIST’S PROFESSION." Ukrainian Dental Almanac, no. 2 (June 25, 2018): 37–40. http://dx.doi.org/10.31718/2409-0255.2.2018.09.

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Medicine is a sphere of activity where there are no trivialities, no unnoticed acts, views, experiences. All contact between the doctor and the patient during the course is a system of human relationships, so the outcome of any treatment depends on their level and quality. Through cooperation with a physician, the patient takes an active position, assumes responsibility for his or her health and takes part in recovery. An inextricable set of manual skills and communication skills determines the professionalism of the physician, forming a solid foundation of trust in the patient.
 The purp
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20

Cheptsov, Vladimir, Andrey Belov, Olga Soloveva, et al. "Survival and growth of soil microbial communities under influence of sodium perchlorates." International Journal of Astrobiology, October 29, 2020, 1–12. http://dx.doi.org/10.1017/s1473550420000312.

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Abstract Previously conducted space missions revealed the presence of perchlorates, which are known to have a high oxidizing potential in Martian regolith, at the level of 0.5%. Due to hygroscopic properties and crystallization features of perchlorate-containing solutions, assumptions leading to the possibility of the existence of liquid water in the form of brines, which can contribute to the vital activity of microorganisms, have been made. At the same time, high concentrations of perchlorates can inhibit the growth of microorganisms and cause their death. Previously performed studies have d
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