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Artykuły w czasopismach na temat „Gac”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Kamboj, Nitin, and Mohrana Choudhary. "Impact of solid waste disposal on ground water quality near Gazipur dumping site, Delhi, India." Journal of Applied and Natural Science 5, no. 2 (2013): 306–12. http://dx.doi.org/10.31018/jans.v5i2.322.

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The present study was carried out to study the impact of domestic wastes disposal on ground water quality at Delhi, India. Ground water is one of the major sources of drinking water in arid and semi-arid regions. Ground water quality data and its distributions are important for the purpose of planning and management. The samples of ground water were collected and analyzed for various physico-chemical parameters viz. conductivity, total dissolved solids (TDS), alkalinity, total hardness, calcium, magnesium, chloride, sulphate, nitrate, phosphate,fluoride, sodium and potassium. Among these param

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2

van den Broek, Daan, Thomas F. C. Chin-A-Woeng, Guido V. Bloemberg, and Ben J. J. Lugtenberg. "Role of RpoS and MutS in phase variation of Pseudomonas sp. PCL1171." Microbiology 151, no. 5 (2005): 1403–8. http://dx.doi.org/10.1099/mic.0.27777-0.

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Pseudomonas sp. strain PCL1171 undergoes reversible colony phase variation between opaque phase I and translucent phase II colonies, which is dependent on spontaneous mutations in the regulatory genes gacA and gacS. Mutation of the mutS gene and constitutive expression of rpoS increases the frequency at which gac mutants appear 1000- and 10-fold, respectively. Experiments were designed to study the relationship between gacS, rpoS and mutS. These studies showed that (i) a functional gac system is required for the expression of rpoS, (ii) RpoS suppresses the expression of mutS and therefore incr

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3

Kim, Taehoon, and Byungryul An. "Effect of Hydrogen Ion Presence in Adsorbent and Solution to Enhance Phosphate Adsorption." Applied Sciences 11, no. 6 (2021): 2777. http://dx.doi.org/10.3390/app11062777.

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In this paper, the effect of hydrogen ions on the adsorption onto granular activated carbon (GAC) with the inorganic contaminant phosphate, which exists as a form of four species depending on the solution pH, is investigated. Various batch isotherm and kinetic experiments were conducted in an initial pH 4 as an acid, a pH 7 as neutral, and a pH 9 solution as a base for the GAC conditioned with deionized water and hydrochloric acid, referred to as GAC and GACA, respectively. The physical properties, such as the total surface area, pore volume, pore size distribution, and weight of the element,

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4

Lin, Shih-Shun, Hui-Wen Wu, Fuh-Jyh Jan, Roger F. Hou, and Shyi-Dong Yeh. "Modifications of the Helper Component-Protease of Zucchini yellow mosaic virus for Generation of Attenuated Mutants for Cross Protection Against Severe Infection." Phytopathology® 97, no. 3 (2007): 287–96. http://dx.doi.org/10.1094/phyto-97-3-0287.

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A nonpathogenic mild strain is essential for control of plant viruses by cross protection. Three amino acid changes, Arg180→Ile180 (GA mutation), Phe205→Leu205 (GB mutation), and Glu396→Asn396 (GC mutation), of the conserved motifs of the helper component-protease (HC-Pro) of a severe strain TW-TN3 of Zucchini yellow mosaic virus (ZYMV), a member of the genus Potyvirus, were generated from an infectious cDNA clone that carried a green fluorescent protein reporter. The infectivity of individual mutants containing single, double, or triple mutations was assayed on local and systemic hosts. On Ch

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5

Takeuchi, Kasumi, Kosumi Yamada, and Dieter Haas. "ppGpp Controlled by the Gac/Rsm Regulatory Pathway Sustains Biocontrol Activity in Pseudomonas fluorescens CHA0." Molecular Plant-Microbe Interactions® 25, no. 11 (2012): 1440–49. http://dx.doi.org/10.1094/mpmi-02-12-0034-r.

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In Pseudomonas fluorescens CHA0 and other fluorescent pseudomonads, the Gac/Rsm signal transduction pathway is instrumental for secondary metabolism and biocontrol of root pathogens via the expression of regulatory small RNAs (sRNAs). Furthermore, in strain CHA0, an imbalance in the Krebs cycle can affect the strain's ability to produce extracellular secondary metabolites, including biocontrol factors. Here, we report the metabolome of wild-type CHA0, a gacA-negative mutant, which has lost Gac/Rsm activities, and a retS-negative mutant, which shows strongly enhanced Gac/Rsm-dependent activitie

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6

Driscoll, William W., John W. Pepper, Leland S. Pierson, and Elizabeth A. Pierson. "Spontaneous Gac Mutants of Pseudomonas Biological Control Strains: Cheaters or Mutualists?" Applied and Environmental Microbiology 77, no. 20 (2011): 7227–35. http://dx.doi.org/10.1128/aem.00679-11.

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ABSTRACTBacteria rely on a range of extracellular metabolites to suppress competitors, gain access to resources, and exploit plant or animal hosts. The GacS/GacA two-component regulatory system positively controls the expression of many of these beneficial external products in pseudomonad bacteria. Natural populations often contain variants with defective Gac systems that do not produce most external products. These mutants benefit from a decreased metabolic load but do not appear to displace the wild type in nature. How could natural selection maintain the wild type in the presence of a mutan

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7

Tewfik, Nazih, Samir Abdelmoaty, Barry L. Smith, and Paulo Johann. "GAC Spotlight." Leading Edge 23, no. 10 (2004): 990–92. http://dx.doi.org/10.1190/tle23100990.1.

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8

Burianyk, Mike, John M. Howie, Ezeanyagu Ifeanyichukwu, et al. "GAC Spotlight." Leading Edge 24, no. 1 (2005): 44–47. http://dx.doi.org/10.1190/tle24010044.1.

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9

Burianyk, Mike, James Sun, and David Zinzer. "GAC Spotlight." Leading Edge 24, no. 4 (2005): 398–400. http://dx.doi.org/10.1190/tle24040398.1.

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10

Pitcher, Dave, Aldo Vesnaver, Peter Attewell, and Mike Burianyk. "GAC Spotlight." Leading Edge 24, no. 6 (2005): 594–96. http://dx.doi.org/10.1190/tle24060594.1.

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11

Burianyk, Michael, Constantin Sava, Maurizio Fedi, et al. "GAC Spotlight." Leading Edge 24, no. 8 (2005): 812–15. http://dx.doi.org/10.1190/tle24080812.1.

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12

Abdelmoaty, Samir, and David Pitcher. "GAC Spotlight." Leading Edge 24, no. 10 (2005): 1006–7. http://dx.doi.org/10.1190/tle24101006.1.

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13

Bo, Zhao. "GAC Spotlight." Leading Edge 24, no. 11 (2005): 1146–48. http://dx.doi.org/10.1190/tle24111146.1.

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14

Burianyk, Michael, and Andrei Bocin. "GAC Spotlight." Leading Edge 25, no. 1 (2006): 42–43. http://dx.doi.org/10.1190/tle25010042.1.

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15

Burianyk, Michael, Konstantin Osypov, Evgeny Landa, and Vladimir Tcheverda. "GAC Spotlight." Leading Edge 25, no. 5 (2006): 659–62. http://dx.doi.org/10.1190/tle25050659.1.

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16

Vesnaver, Aldo, Vaughn Ball, Cezar Iacob, and Andrei Bocin. "GAC Spotlight." Leading Edge 25, no. 6 (2006): 787–88. http://dx.doi.org/10.1190/tle25060787.1.

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17

Bora, Bhagwan Singh, K. Sandhya Rani, and T. Harinarayana. "GAC Spotlight." Leading Edge 25, no. 7 (2006): 812–15. http://dx.doi.org/10.1190/tle25070812.1.

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18

Burianyk, Michael. "GAC Spotlight." Leading Edge 25, no. 8 (2006): 1014–15. http://dx.doi.org/10.1190/tle25081014.1.

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19

Cox, Barbara, and Markku Peltoniemi. "GAC Spotlight." Leading Edge 26, no. 1 (2007): 94–95. http://dx.doi.org/10.1190/tle26010094.1.

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20

Chopra, Satinder. "GAC Spotlight." Leading Edge 26, no. 2 (2007): 238–40. http://dx.doi.org/10.1190/tle26020238.1.

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21

Uchida, Toshihiro, and Tadeusz Ulrych. "GAC Spotlight." Leading Edge 26, no. 3 (2007): 368–70. http://dx.doi.org/10.1190/tle26030368.1.

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22

Yanchak, Dennis, Aleksei Shevchenko, and Konstantin Osypov. "GAC Spotlight." Leading Edge 26, no. 4 (2007): 532–33. http://dx.doi.org/10.1190/tle26040532.1.

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23

Bridle, Ralph M., William L. Abriel, and Steve Chang. "GAC Spotlight." Leading Edge 26, no. 6 (2007): 787–90. http://dx.doi.org/10.1190/tle26060787.1.

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24

Pitcher, David, Evgeny Landa, Sven Treitel, Tad Ulrych, and Yoram Shoham. "GAC SPOTLIGHT." Leading Edge 26, no. 7 (2007): 904–6. http://dx.doi.org/10.1190/tle26070904.1.

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25

Vesnaver, Aldo, Aldo Vesnaver, Danila Tverdokhlebov, and Sergey Gorbachev. "GAC Spotlight." Leading Edge 26, no. 9 (2007): 1208–12. http://dx.doi.org/10.1190/tle26091208.1.

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26

Bouma, Bastiaan. "GAC Spotlight." Leading Edge 27, no. 5 (2008): 684–86. http://dx.doi.org/10.1190/tle27050684.1.

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27

Burianyk, Mike, Vladislav Kuznetsov, and Bastiaan Bouma. "GAC Spotlight." Leading Edge 27, no. 6 (2008): 806–10. http://dx.doi.org/10.1190/tle27060806.1.

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Vesnaver, Aldo. "GAC Spotlight." Leading Edge 27, no. 8 (2008): 1060–62. http://dx.doi.org/10.1190/tle27081060.1.

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29

Bouma, Bastiaan. "GAC Spotlight." Leading Edge 28, no. 2 (2009): 249. http://dx.doi.org/10.1190/tle28020249.1.

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30

Terekhova, Pam. "GAC Spotlight." Leading Edge 28, no. 5 (2009): 608. http://dx.doi.org/10.1190/tle28050608.1.

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31

Takeuchi, Kasumi. "GABA, A Primary Metabolite Controlled by the Gac/Rsm Regulatory Pathway, Favors a Planktonic Over a Biofilm Lifestyle in Pseudomonas protegens CHA0." Molecular Plant-Microbe Interactions® 31, no. 2 (2018): 274–82. http://dx.doi.org/10.1094/mpmi-05-17-0120-r.

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In Pseudomonas protegens CHA0 and other fluorescent pseudomonads, the Gac/Rsm signal transduction pathway is crucial for the expression of secondary metabolism and the biological control of fungi, nematodes, and insects. Based on the findings of a previous metabolomic study, the role of intracellular γ-aminobutyrate (GABA) as a potential signal in the Gac/Rsm pathway was investigated herein. The function and regulation of a gabDT (c01870-c01880) gene cluster in strain CHA0 were described. The gabT gene encoded GABA transaminase (GABAT) and enabled the growth of the bacterium on GABA, whereas t

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32

Mardiah, Triana, Depison Depison, and Helmi Ediyanto. "Phenotype Diversity and Gene Myostatin (MSTN) of Bangkok Chicken using PCR-RFLP." Buletin Peternakan 45, no. 4 (2021): 233. http://dx.doi.org/10.21059/buletinpeternak.v45i4.68968.

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This study aims to characterize the phenotype and determine the diversity of the Myostatin (MSTN) gene at Bangkok chickens using the Polymerase Chain Reaction- Restriction Fragment Length Polymorphism (PCR-RFLP) method. This study used 50 Bangkok chicken blood samples taken from the axillary vein on the wing. DNA was extracted using the protocol Genomic DNA Purification Kit from Promega and then amplified by PCR (polymerase chain reaction) using a pair of primers F: 5'GGT TTT GAC GAC ATG AGC CT3' R: 5'CAG GTG GAA TGT CAT GCA GA3' with product length 955 bp. Amplification products were cut usin

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33

Ondon, Brim Stevy, Bing Sun, Zhi Yu Yan, Xiao Mei Zhu, and Hui Liu. "Microwave Preparation of Modified Activated Carbons for Phenol Adsorption in Aqueous Solution." Advanced Materials Research 726-731 (August 2013): 1883–89. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.1883.

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Microwave energy was used to prepare modified activated carbons (GAC, GAC/MW, GAC/Ni, and GAC/Cu). The modified activated carbons were used for phenol adsorption in aqueous solution. The adsorption conditions were optimized. Adsorption capacities of the different modified activated carbons were evaluated. The effect of microwave pretreatment of activated carbons was investigated. A comparative study on the activated carbons adsorption capacities was also investigated. Under optimal conditions the results showed that there was no obvious effect on activated carbons adsorption when rising temper

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34

Ridwan Fahmi, Muhammad, M. N. Nasruddin, Che Zulzikrami Azner Abidin, and M. Ali Umi Fazara. "Adsorption of Reactive Red 120 by Using Regenerated Spent Carbon." Applied Mechanics and Materials 754-755 (April 2015): 671–75. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.671.

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In this study the performance of regenerated spent carbon for azo dye removal was evaluated in batch and continuous column. The spent carbon was generated by thermal method through pyrolysis process and chemical method by using NaOH 6.0 M solution. Reactive Red 120 (RR120) was selected as a model of azo dye due to its common application in the industries. The regeneration of spent granular activated carbon (GAC) by pyrolysis could produce adsorbent that has the adsorption capacity closer to new GAC. The result indicated that paralysed GAC could potentially apply to replace new GAC for RR120 ad

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Shiraiwa, Nobutaka, Kaori Kikuchi, Ichiro Honda, et al. "Characterization of Endogenous Gibberellins and Molecular Cloning of a Putative Gibberellin 3-Oxidase Gene in Bunching Onion." Journal of the American Society for Horticultural Science 136, no. 6 (2011): 382–88. http://dx.doi.org/10.21273/jashs.136.6.382.

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To clarify the role of gibberellin (GA) in the growth of bunching onion (Allium fistulosum), identification of endogenous GAs and expression analysis of a putative gibberellin 3-oxidase (AfGA3ox1) were conducted. GA1, GA3, GA4, GA9, GA20, and GA34 were identified with levels of GA4 and GA9 being higher than those of GA1, GA3, and GA20. The young seedlings were clearly elongated by exogenous GA4 treatment but not by GA3. These results indicate that the 13-non-hydroxylation pathway of GA biosynthesis may be predominant in shoots with GA4 playing an important role in the growth of bunching onion.

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36

Ando, A., Y. Kajiyama, and N. Takigawa. "Study on deterioration of water treatment capability of granular activated carbon (GAC) in Osaka City." Water Supply 6, no. 2 (2006): 245–51. http://dx.doi.org/10.2166/ws.2006.076.

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To supply safe, good-quality tap water, Osaka Municipal Waterworks Bureau (OMWW) introduced an advanced water treatment system that incorporates ozonation and granular activated carbon (GAC) treatment into conventional treatment processes. By March 2000, all water purification plants in Osaka City were equipped with advanced water treatment facilities. This new treatment system has successfully removed odours and flavor and reduced trihalomethane. GAC treatment, the last stage of the water treatment, plays a vital role in removing organic matter in water, in conjunction with ozonation. However

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37

Niu, Jia, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai. "Effects of Backwashing on Granular Activated Carbon with Ammonium Removal Potential in a Full-Scale Drinking Water Purification Plant." Water 10, no. 12 (2018): 1830. http://dx.doi.org/10.3390/w10121830.

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Granular activated carbon (GAC) has been widely introduced to advanced drinking water purification plants to remove organic matter and ammonium. Backwashing, which is the routine practice for GAC maintenance, is an important operational factor influencing the performance of GAC and its microbial biomass. In this study, the effects of backwashing on the ammonium removal potential of GAC were evaluated. In addition, abundances of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) on GAC were analyzed. GAC samples before and after backwashing were collected from a full-scale dri

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38

Zha, Daiming, Li Xu, Houjin Zhang, and Yunjun Yan. "The Two-Component GacS-GacA System ActivateslipATranslation by RsmE but Not RsmA in Pseudomonas protegens Pf-5." Applied and Environmental Microbiology 80, no. 21 (2014): 6627–37. http://dx.doi.org/10.1128/aem.02184-14.

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ABSTRACTInPseudomonasspp., the Gac-Rsm signal transduction system is required for the production of lipases. The current model assumes that the system induces lipase gene transcription mediated through the quorum-sensing (QS) system. However, there are no reports of a QS system based uponN-acyl homoserine lactones or the regulation of lipase gene expression inPseudomonas protegens. In this study, we investigated the regulatory mechanism acting onlipAexpression activated by the Gac-Rsm system inP. protegensPf-5 through deletion and overexpression ofgacA, overexpression ofrsmAorrsmE, expression

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39

Choi, Hyun Soo, and Dong Seok Rhee. "Catalytic Ozonation with Activated Carbon for Treatment of Humic Substances in Water." Applied Mechanics and Materials 470 (December 2013): 19–22. http://dx.doi.org/10.4028/www.scientific.net/amm.470.19.

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Ozonation of the ubiquitous and poorly biodegradable humic acid in aquatic system was conducted in the presence of activated carbon with the aim of catalyst. The optimum operating parameters deduced from this study was GAC amount of 16.5 v/v% (GAC column volume per reactor volume) in the humic acid solution of initial pH 9. DOC removal rate in Ozone/GAC process was higher than the sum of Ozone alone and GAC adsorption process. Formaldehyde formation in Ozone/GAC process was less than in Ozone alone and GAC adsorption process. The part of molecular size distribution under 10 k Dalton were incre

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40

Martï¿½nez-Granero, Francisco, Rafael Rivilla, and Marta Martï¿½n. "Rhizosphere Selection of Highly Motile Phenotypic Variants of Pseudomonas fluorescens with Enhanced Competitive Colonization Ability." Applied and Environmental Microbiology 72, no. 5 (2006): 3429–34. http://dx.doi.org/10.1128/aem.72.5.3429-3434.2006.

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ABSTRACT Phenotypic variants of Pseudomonas fluorescens F113 showing a translucent and diffuse colony morphology show enhanced colonization of the alfalfa rhizosphere. We have previously shown that in the biocontrol agent P. fluorescens F113, phenotypic variation is mediated by the activity of two site-specific recombinases, Sss and XerD. By overexpressing the genes encoding either of the recombinases, we have now generated a large number of variants (mutants) after selection either by prolonged laboratory cultivation or by rhizosphere passage. All the isolated variants were more motile than t

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41

Son, Heejong, Sangki Choi, Byungryul An, Hyejin Lee, and Hoon-Sik Yoom. "Effect of Changes in Physical Properties of Granular Activated Carbon (GAC) on the Adsorption of Natural Organic Matter (NOM) with Increasing the Number of Thermal Regeneration: Pore Size and NOM Molecular Weight." Journal of Korean Society of Environmental Engineers 43, no. 7 (2021): 537–46. http://dx.doi.org/10.4491/ksee.2021.43.7.537.

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Objectives : The purpose of this study was to evaluate the effect of increasing the number of regeneration of granular activated carbon (GAC) on the adsorption capacity of natural organic matter (NOM), and to suggest the technical process options associated the limit number of regeneration and the efficient use of regenerated GAC.Methods : The physicochemical properties of virgin and thermally regenerated GAC were analyzed. To evaluate the NOM adsorption capacity of virgin- and regenerated-GAC, five laboratory-scale columns packed with virgin- and regenerated-GAC were used for treating effluen

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42

Orlandini, Ervin, Tsegaye G. Gebereselassie, Joop C. Kruithof, and Jan C. Schippers. "Effect of ozonation on preloading of background organic matter in granular activated carbon filters." Water Science and Technology 35, no. 7 (1997): 295–302. http://dx.doi.org/10.2166/wst.1997.0289.

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Background Organic Matter (BOM) preloading is adsorption of BOM onto Granular Activated Carbon (GAC) prior to the adsorption of target compounds, such as pesticides and other organic micropollutants (e.g. atrazine). BOM preloading is commonly found to speed up the breakthrough of target compounds during GAC filtration. Ozonation of GAC filter influent may be expected to lower BOM preloading, because it results in less adsorbable and more biodegradable BOM compounds. Short Fixed Bed (SFB) tests with virgin and preloaded GAC, performed within this study, confirmed that preloading of BOM present

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THE HO, VIET, HUU TRIET LE, and THANH AN NGUYEN. "Genetic characterization of Gac (Momordica cochinchinesis) accessions in Southern Vietnam by ISSR markers." Biodiversitas Journal of Biological Diversity 20, no. 2 (2019): 387–92. http://dx.doi.org/10.13057/biodiv/d200212.

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Ho VT, Le HT, Nguyen TA. 2019. Genetic characterization of Gac (Momordica cochinchinesis) accessions in Southern Vietnam by ISSR markers. Biodiversitas 20: 387-392. Gac (Momordica cochinchinesis) plays important roles in Vietnamese cuisine and medicine. It has high nutrient and medicinal values. Demand of gac fruit as ingredient for food processing and raw material for health industry requires accelerated gac cultivation. However, gac quality is variable due to the uncertain available germplasm and its management as breeding stock. Identification of gac cultivars and landraces in Vietnam is ma

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44

Burlingame, G. A., I. H. Suffet, and W. O. Pipes. "Predominant bacterial genera in granular activated carbon water treatment systems." Canadian Journal of Microbiology 32, no. 3 (1986): 226–30. http://dx.doi.org/10.1139/m86-045.

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Granular activated carbon (GAC) beds may be used for removal of dissolved organic matter during the treatment of drinking water. However, they might also change the microbiological quality of the water entering the distribution system either by changing the predominant bacteria or the bacterial density of the treated water. A 3-year pilot plant study of water treatment using GAC beds was conducted at the Baxter Water Treatment Plant in Philadelphia. During the study, bacteria were isolated from the raw water and from the effluents of the GAC treatment units. At the end of the study, bacteria w

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45

Bastami, Sina, Sina Ghassa, Amin Seyedhakimi, and Saeed Chehreh Chelgani. "Adsorption of Mercury from a Cyanide Leaching Solution Using Various Activation Rates of Granular Activated Carbon: A Laboratory- and Industrial-Scale Study." Sustainability 12, no. 8 (2020): 3287. http://dx.doi.org/10.3390/su12083287.

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The use of granular activated carbon (GAC) is a typical and sustainable technique for recovering precious metals from a cyanide leaching solution (CLS). The level of GAC activity is a fundamental factor in assessing the rate of precious metal adsorption; thus, it is essential to determine the efficiency of carbon elution for reproducing GACs. Since mercury (Hg) adsorption plays a critical role, economically and environmentally, in GAC efficiency, we conducted various laboratory and industrial experiments to explore the effect of different rates of GAC activation (10%, 35%, 70% and 100%) on Hg

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Palmieri, Elena, Zoltán Kis, James Ozanne, et al. "GMMA as an Alternative Carrier for a Glycoconjugate Vaccine against Group A Streptococcus." Vaccines 10, no. 7 (2022): 1034. http://dx.doi.org/10.3390/vaccines10071034.

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Group A Streptococcus (GAS) causes about 500,000 annual deaths globally, and no vaccines are currently available. The Group A Carbohydrate (GAC), conserved across all GAS serotypes, conjugated to an appropriate carrier protein, represents a promising vaccine candidate. Here, we explored the possibility to use Generalized Modules for Membrane Antigens (GMMA) as an alternative carrier system for GAC, exploiting their intrinsic adjuvant properties. Immunogenicity of GAC-GMMA conjugate was evaluated in different animal species in comparison to GAC-CRM197; and the two conjugates were also compared

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Wang, Feifei, Lu Zhang, Liangfu Wei, and Jan Peter van der Hoek. "Removal of Hydrogen Peroxide Residuals and By-Product Bromate from Advanced Oxidation Processes by Granular Activated Carbon." Water 13, no. 18 (2021): 2460. http://dx.doi.org/10.3390/w13182460.

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During drinking water treatment, advanced oxidation process (AOP) with O3 and H2O2 may result in by-products, residual H2O2 and BrO3−. The water containing H2O2 and BrO3− often flows into subsequent granular activated carbon (GAC) filters. A concentrated H2O2 solution can be used as GAC modification reagent at 60 °C to improve its adsorption ability. However, whether low concentrations of H2O2 residuals from AOP can modify GAC, and the impact of H2O2 residuals on BrO3− removal by the subsequent GAC filter at ambient temperature, is unknown. This study evaluated the modification of GAC surface

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Obayomi, Kehinde Shola, Sie Yon Lau, Zongli Xie, Stephen R. Gray, and Jianhua Zhang. "In-Situ Hydrothermal Fabrication of ZnO-Loaded GAC Nanocomposite for Efficient Rhodamine B Dye Removal via Synergistic Photocatalytic and Adsorptive Performance." Nanomaterials 14, no. 14 (2024): 1234. http://dx.doi.org/10.3390/nano14141234.

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In this work, zinc oxide (ZnO)/granular activated carbon (GAC) composites at different ZnO concentrations (0.25M-ZnO@GAC, 0.5M-ZnO@GAC, and 0.75M-ZnO@GAC) were prepared by an in-situ hydrothermal method and demonstrated synergistic photocatalytic degradation and adsorption of rhodamine B (RhB). The thermal stability, morphological structure, elemental composition, crystallographic structure, and textural properties of developed catalysts were characterized by thermal gravimetric analysis (TGA/DTG), scanning electron microscopy equipped with energy dispersive-x-ray (SEM-EDS), X-ray diffraction

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Vaitovich, Aliaksandra Uladzimirauna. "The role of the Globular Amphora Culture in the development of the Upper Neman communities." Samara Journal of Science 8, no. 2 (2019): 106–14. http://dx.doi.org/10.17816/snv201982204.

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The paper discusses the problems of the Globular Amphora Culture (hereinafter the GAC) in the Upper Neman region. According to the proposition of M. Shmyt the sources related to the GAC have been divided in two groups. The first group is made up of the so-called pure sources i.e. the materials directly related to the GAC although hypothetically at times. It includes cemeteries, flint mines and workshops as well as finds of the quadrangular ground flint axes and chisels. The second group comprises so-called syncretic sources associated with the broad understood GAC traditions. The traits geneti

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Seaton, Sarah C., Mark W. Silby, and Stuart B. Levy. "Pleiotropic Effects of GacA on Pseudomonas fluorescens Pf0-1In Vitroand in Soil." Applied and Environmental Microbiology 79, no. 17 (2013): 5405–10. http://dx.doi.org/10.1128/aem.00819-13.

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ABSTRACTPseudomonasspecies can exhibit phenotypic variation resulting fromgacSorgacAmutation.P. fluorescensPf0-1 is agacAmutant and exhibits pleiotropic changes following the introduction of a functional allele. GacA enhances biofilm development while reducing dissemination in soil, suggesting that alternative Gac phenotypes enablePseudomonassp. to exploit varied environments.

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