Статті в журналах: "Agent/s"

1

Lerm, Jessica. "The agent-relative/agent-neutral distinction: my two sense(s)." South African Journal of Philosophy 32, no. 2 (August 2013): 137–48. http://dx.doi.org/10.1080/02580136.2013.810033.

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2

Xiao, Guoqing, Lei Lei, Chunyan Chen, Yuanyuan Li, and Wenquan Hu. "Optimization and Performance Evaluation of an Environmentally Friendly Fluorine-Free Foam Extinguishing Agent." Journal of Nanoelectronics and Optoelectronics 15, no. 7 (July 1, 2020): 884–93. http://dx.doi.org/10.1166/jno.2020.2813.

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Fluorine-free foam fire extinguishing agents are environmentally friendly compared with aqueous film-forming foam fire extinguishing agents (AFFF). Design-Expert 11.0 software and the Box-Behnken design principle were used to optimize the foaming agent formulation which is the core of fluorine-free foam extinguishing agents and regression models of the expansion ratio (α), 50% drainage time (t50%) and surface tension (γ) were established. Furthermore, the optimal combination of foaming agent various factors (the mass fraction of APG0810, silicone surfactant, SDS and BS-12) were predicted by the regression models. The prediction results showed that when the mass fraction of APG0810, silicone surfactant, SDS and BS-12 were 2.0%, 0.242%, 0.116% and 0.349%, respectively, the comprehensive foaming agent performance was highest. The α, t50% and γ of the optimized foaming agent were 8.0, 376 s, and 24.1 mN/m, respectively. The fluorinefree foam fire extinguishing agent was prepared by compounding the optimized foaming agent with foam stabilizers and other additives, resulting in a surface tension of 24.3 mN/m and a spreading factor greater than zero. The, α, t50% and sealing time of the fluorine-free foam fire extinguishing agent were 7.6, 541 s, and 895 s, respectively, which were 8.6%, 16.1%, and 14% higher than commercial 6% AFFF.

3

Patočka, Jiří, Ramesh C. Gupta, and Kamil Kuča. "ANATOXIN-A(S): NATURAL ORGANOPHOSPHORUS ANTICHOLINESTERASE AGENT." Military Medical Science Letters 80, no. 3 (September 9, 2011): 129–39. http://dx.doi.org/10.31482/mmsl.2011.019.

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4

Aparna, S., S. Thakur, S. Srirangarajan, and S. Ravindra. "EDTA-S: A novel root conditioning agent." Journal of Indian Society of Periodontology 16, no. 1 (2012): 70. http://dx.doi.org/10.4103/0972-124x.94608.

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5

Splete, Heidi. "S. aureus Is Agent of Fatal Syndrome." Pediatric News 39, no. 11 (November 2005): 12. http://dx.doi.org/10.1016/s0031-398x(05)70701-3.

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6

Splete, Heidi. "S. Aureus Is Agent Of Fatal Syndrome." Family Practice News 35, no. 20 (October 2005): 33. http://dx.doi.org/10.1016/s0300-7073(05)71970-8.

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7

Eno, A. E., and E. H. Itam. "Hypoglycaemic Agent(s) in Leaves ofElaeophorbia drupifera." Phytotherapy Research 10, no. 8 (December 1996): 680–82. http://dx.doi.org/10.1002/(sici)1099-1573(199612)10:8<680::aid-ptr881>3.0.co;2-c.

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8

Ranjan Sahoo, Chita, Jyotirmaya Sahoo, Monalisa Mahapatra, Debananda Lenka, Pratap Kumar Sahu, Budheswar Dehury, Rabindra Nath Padhy, and Sudhir Kumar Paidesetty. "Coumarin derivatives as promising antibacterial agent(s)." Arabian Journal of Chemistry 14, no. 2 (February 2021): 102922. http://dx.doi.org/10.1016/j.arabjc.2020.102922.

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9

Oliva, Brunello, Keith Miller, Nico Caggiano, Alexander J. O'Neill, Gregory D. Cuny, Michael Z. Hoemann, James R. Hauske, and Ian Chopra. "Biological Properties of Novel Antistaphylococcal Quinoline-Indole Agents." Antimicrobial Agents and Chemotherapy 47, no. 2 (February 2003): 458–66. http://dx.doi.org/10.1128/aac.47.2.458-466.2003.

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ABSTRACT The antibacterial properties of novel quinoline-indole (QI) agents were examined. QI agents demonstrated potent bactericidal activities against Staphylococcus aureus, killing by lytic and nonlytic mechanisms. S. aureus mutants resistant to a lytic QI agent (SEP 155342) and a nonlytic QI agent (SEP 118843) arose at frequencies of 1.4 × 10−9 and 1.2 × 10−8, respectively, by selection at four times the MICs. Mutants resistant to QI agent SEP 155342 were unstable, but mutants resistant to QI agent SEP 118843 displayed stable resistance. Mutants resistant to QI agent SEP 118843 were not cross resistant to other inhibitors, including QI agent SEP 155342. Addition of QI agents SEP 118843 and SEP 155342 at four times the MIC caused nonspecific inhibition of several macromolecular biosynthetic pathways in S. aureus. Within 10 min, QI agents SEP 118843 and SEP 155342 both interfered with bacterial membrane integrity, as measured by uptake of propidium iodide. Agents from the two classes of the QI agents probably kill staphylococci by separate mechanisms which, nevertheless, both involve interference with cytoplasmic membrane function. Precise structure-activity relationships for the division of QI agents into two classes could not be determined. However, lytic activity was often associated with substitution of a basic amine at position 4 of the quinoline nucleus, whereas compounds with nonlytic activity usually contained an aromatic ring with or without a methoxy substituent at position 4. Nonlytic QI agents such as SEP 118843 may possess selective activity against the prokaryotic membrane since this compound failed to lyse mouse erythrocytes when it was added at a concentration equivalent to four times the MIC for S. aureus.

10

Koleangan, Harry S. J. "KAJIAN STABILITAS TERMAL DAN KARAKTER KOVALEN ZAT PENGAKTIF PADA ARANG AKTIF LIMBAH GERGAJIAN KAYU MERANTI (Shorea spp)." JURNAL ILMIAH SAINS 15, no. 1 (October 31, 2011): 229. http://dx.doi.org/10.35799/jis.11.2.2011.212.

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KAJIAN STABILITAS TERMAL DAN KARAKTER KOVALEN ZAT PENGAKTIF PADA ARANG AKTIF LIMBAH GERGAJIAN KAYU MERANTI (Shorea spp) Harry S. J. Koleangan1) 1)Program Studi Kimia FMIPA Univesitas Sam Ratulangi, Manado 95115; e-mail: koleanganharry@yahoo.com ABSTRAK Telah dilakukan penelitian tentang peranan stabilitas termal dan karakter kovalen pada zat pengaktif pada arang aktif yang dibuat dari limbah gergajian kayu meranti dengan menggunakan agen pengaktif CaCl2 dan H3PO4. Hasil penelitian menunjukkan bahwa zat pengaktif yang memiliki karakter kovalen yang dominan menghasilkan arang aktif dengan daya serap tertinggi. Kata kunci: agen pengaktivasi, karbon aktif, limbah gergajian kayu meranti THERMAL STABILITY AND COVALENT CHARACTER EVALUATION OF ACTIVATING AGENTS ON MERANTI (Shorea spp) TIMBER SAWMILL-WASTE ACTIVATED CARBON ABSTRACT A research considering the role of thermal stability and covalent character of activating agent on meranti timber sawmill-waste activated carbon using H3PO4 and CaCl2 as activating agents had been conducted. The result showed that the activating agent having higher covalent character yielded highest-adsorption activated carbon. Keywords: , activating agent, timber sawmill-waste, activated carbon

11

Tarini, Ni Made Adi, Marta Setiabudy, NM Susilawathi, NND Fatmawati, IPB Mayura, EA Darwinata, and NKA Sudiariani. "Misidentification of S. suis as a Zoonotic Agent." Open Access Macedonian Journal of Medical Sciences 7, no. 14 (July 25, 2019): 2309–12. http://dx.doi.org/10.3889/oamjms.2019.619.

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BACKGROUND: Streptococcus suis is an emerging zoonotic pathogen. This bacterium commonly causes meningitis in human and is often associated with hearing and vestibular dysfunction. S. suis tends to be misidentified, leading to under-diagnosis. CASE PRESENTATION: A previously healthy 50-year-old man was admitted to one of the district hospitals in Bali Province, Indonesia, due to meningitis. He had a history of consuming homemade raw pork product two days before the onset of illness. Streptococcus mitis was identified from the cerebrospinal fluid culture by using VITEX 2 COMPACT (Biomeriuex) with a 99% probability score. This patient had clinical symptoms and risk factor identical to S. suis infection. Therefore, we performed confirmation tests for the cerebrospinal fluid by PCR (using primer specific for gdh and recN) and sequencing of those PCR products. Both of the confirmation tests showed a positive result for S. suis. CONCLUSION: There are few reports of S. suis infections in Indonesia, but we believe that the cases in Indonesia, especially Bali, are not uncommon. The under-reported cases are perhaps due to the difficulties in differentiating S. suis from other Streptococcus species by culture method, particularly Streptococcus mitis. Therefore, confirmation by PCR is necessary.

12

Tada, Yuji, Yuichi Takiguchi, Ayako Fujikawa, Atsushi Kitamura, Katsushi Kurosu, Kenzo Hiroshima, Seiichiro Sakao, et al. "Pulmonary Toxicity by a Cytotoxic Agent, S-1." Internal Medicine 46, no. 15 (2007): 1243–46. http://dx.doi.org/10.2169/internalmedicine.46.0146.

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13

Kane, Edward J. "Principal-Agent Problems in S&L Salvage." Journal of Finance 45, no. 3 (July 1990): 755. http://dx.doi.org/10.2307/2328791.

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14

KANE, EDWARD J. "Principal-Agent Problems in S&L Salvage." Journal of Finance 45, no. 3 (July 1990): 755–64. http://dx.doi.org/10.1111/j.1540-6261.1990.tb05104.x.

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15

Miller, B. "Arachnoiditis: are we accusing the wrong agent(s)?" Anaesthesia 68, no. 4 (March 11, 2013): 423. http://dx.doi.org/10.1111/anae.12183.

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16

Miura, Koh, Tetsuhiko Shirasaka, Hiroki Yamaue, and Iwao Sasaki. "S-1 as a core anticancer fluoropyrimidine agent." Expert Opinion on Drug Delivery 9, no. 3 (January 11, 2012): 273–86. http://dx.doi.org/10.1517/17425247.2012.652945.

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17

Wheatley, Ben. "MI5’s investigation of Ronald Sydney Seth, SOE’s Agent Blunderhead and the SD’s Agent 22D: Loyal British agent or Nazi double agent?" Journal of Intelligence History 13, no. 1 (November 4, 2013): 41–61. http://dx.doi.org/10.1080/16161262.2013.848532.

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18

EL-GHAMRAWY, SALLY M., and ALI I. ELDESOUKY. "AN AGENT DECISION SUPPORT MODULE BASED ON GRANULAR ROUGH MODEL." International Journal of Information Technology & Decision Making 11, no. 04 (July 2012): 793–820. http://dx.doi.org/10.1142/s0219622012500216.

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A multi-agent system (MAS) is a branch of distributed artificial intelligence, composed of a number of distributed and autonomous agents. In a MAS, effective coordination is essential for autonomous agents to achieve their goals. Any decision based on a foundation of knowledge and reasoning can lead agents into successful cooperation; to achieve the necessary degree of flexibility in coordination, an agent must decide when to coordinate and which coordination mechanism to use. The performance of any MAS depends directly on the decisions made by the agents. The agents must therefore be able to make correct decisions. This paper proposes a decision support module in a distributed MAS that is concerned with two main decisions: the decision needed to allocate a task to specific agent/s and the decision needed to select the appropriate coordination mechanism when agents must coordinate with other agent/s to accomplish a specific task. An algorithm for the task allocation decision maker (TADM) and the coordination mechanism selection decision maker (CMSDM) algorithm are proposed that are based on the granular rough model (GRM). Furthermore, a number of experiments were performed to validate the effectiveness of the proposed algorithms; the efficiency of the proposed algorithms is compared with recent works. The preliminary results demonstrate the efficiency of our algorithms.

19

Francuski, Ognjen. "UČENJE USLOVLJAVANJEM UZ POŠTOVANJE SIGURNOSNIH MEHANIZAMA – STUDIJA SLUČAJA RADA UZ SAMO-MODIFIKACIJU." Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 36, no. 01 (December 23, 2020): 47–50. http://dx.doi.org/10.24867/11be04francuski.

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S ubrzanim napretkom u istraživanju i primeni veštačke inteligencije, raste i zabrinuost o bezbednoj upotrebi iste u autonomnim sistemima. Iako trenutno ne postoji standardizovana formalna specifikacija, u literaturi je napravljen pomak definisanjem mogućih sigurnosnih problema inteligentnih agenata, njhovom matematičkom formalizacijom i predlozima rešenja. Fokus ovog rada je testiranje algoritama učenja uslovljavanjem na problem samo-modifikacije. U radu AI Safety Gridworlds definisano je okruženje „Viski i Zlatnik“ koje testira inteligentne agente na ovaj problem. Na ovom okruženju testirani su DQN, A2C i diskretna modifikacija SAC algoritma. Agenti trenirani DQN-om i SAC-om poštuju sigurnosni mehanizam, dok agent treniran A2C-om nije uspeo da ga nauči. Kako prilikom procesa treniranja agent može u nekom trenutku da divergira od rešenja, da bi se dobio agent koji poštuje sigurnosni mehanizam samo-modifikacije potrebno je pratiti proces treniranja i zaustaviti ga u pravom trenutku.

20

Francuski, Ognjen. "UČENJE USLOVLJAVANJEM UZ POŠTOVANJE SIGURNOSNIH MEHANIZAMA – STUDIJA SLUČAJA RADA UZ SAMO-MODIFIKACIJU." Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 36, no. 01 (December 23, 2020): 47–50. http://dx.doi.org/10.24867/11be04francuski.

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S ubrzanim napretkom u istraživanju i primeni veštačke inteligencije, raste i zabrinuost o bezbednoj upotrebi iste u autonomnim sistemima. Iako trenutno ne postoji standardizovana formalna specifikacija, u literaturi je napravljen pomak definisanjem mogućih sigurnosnih problema inteligentnih agenata, njhovom matematičkom formalizacijom i predlozima rešenja. Fokus ovog rada je testiranje algoritama učenja uslovljavanjem na problem samo-modifikacije. U radu AI Safety Gridworlds definisano je okruženje „Viski i Zlatnik“ koje testira inteligentne agente na ovaj problem. Na ovom okruženju testirani su DQN, A2C i diskretna modifikacija SAC algoritma. Agenti trenirani DQN-om i SAC-om poštuju sigurnosni mehanizam, dok agent treniran A2C-om nije uspeo da ga nauči. Kako prilikom procesa treniranja agent može u nekom trenutku da divergira od rešenja, da bi se dobio agent koji poštuje sigurnosni mehanizam samo-modifikacije potrebno je pratiti proces treniranja i zaustaviti ga u pravom trenutku.

21

Subramanian, B., S. Y. Christou, A. M. Efstathiou, V. Namboodiri, and D. D. Dionysiou. "Regeneration of three-way automobile catalysts using biodegradable metal chelating agent—S, S-ethylenediamine disuccinic acid (S, S-EDDS)." Journal of Hazardous Materials 186, no. 2-3 (February 2011): 999–1006. http://dx.doi.org/10.1016/j.jhazmat.2010.11.089.

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22

Pipiya, Sofiya O., Yuliana A. Mokrushina, Alexander G. Gabibov, Ivan V. Smirnov, and Stanislav S. Terekhov. "Selective Eradication of Staphylococcus aureus by the Designer Genetically Programmed Yeast Biocontrol Agent." Antibiotics 9, no. 9 (August 19, 2020): 527. http://dx.doi.org/10.3390/antibiotics9090527.

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Staphylococcus aureus is a common human pathogen that is particularly often associated with antibiotic resistance. The eradication of this ubiquitous infectious agent from its ecological niches and contaminated surfaces is especially complicated by excessive biofilm formation and persisting cells, which evade the antibacterial activity of conventional antibiotics. Here, we present an alternative view of the problem of specific S. aureus eradication. The constitutive heterologous production of highly specific bacteriolytic protease lysostaphin in yeast Pichia pastoris provides an efficient biocontrol agent, specifically killing S. aureus in coculture. A yeast-based anti-S. aureus probiotic was efficient in a high range of temperatures and target-to-effector ratios, indicating its robustness and versatility in eliminating S. aureus cells. The efficient eradication of S. aureus by live lysostaphin-producing P. pastoris was achieved at high scales, providing a simple, biocompatible and cost-effective strategy for S. aureus lysis in bioproduction and surface decontamination. Future biomedical applications based on designer yeast biocontrol agents require evaluation in in vivo models. However, we believe that this strategy is very promising since it provides highly safe, efficient and selective genetically programmed probiotics and targeted biocontrol agents.

23

Lee, Yeon-Ho, Joo-Hyung Lee, Soo-Jin Kim, Sung-Ho Chon, Byoung-Chul Choi, Seung-Ju Oh, and Si-Kuk Kim. "A Study on the Development of Fire Extinguishing Agent and Extinguishing System for ESS Fire." Fire Science and Engineering 34, no. 2 (April 30, 2020): 147–55. http://dx.doi.org/10.7731/kifse.589fd68c.

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This paper presents a study on the development of a fire extinguishing agent and extinguishing system for an energy storage system (ESS) fire. The fire extinguishing agent designed to extinguish an ESS fire is a highly permeable fire extinguisher that reduces the surface tension and viscosity while bringing about cooling action. This is the main extinguishing effect of this type of wetting agent, which displays the characteristics of fire extinguishing agents used for penetrating the battery cells inside the ESS module. For the fire extinguishing system, a local application system was designed to suppress fire on a rack-by-rack basis. A 360° rotating nozzle was inserted into the rear hall of the ESS module, and general nozzles were installed in the rack to maximize the fire extinguishing effect. The fire extinguishing agent was strongly discharged by virtue of the gas release pressure. Experiments on fire suppression performance with ESS module 1 unit and module 3 units showed that all visible flames were extinguished in 8 s and 9 s, respectively, by the fire extinguishing agent. In addition, based on confirming reignition for 600 s after the fire extinguishing agent was exhausted, it was confirmed that the ESS fire was completely extinguished without reignition in all fire suppression performance experiments.

24

MAEDA, Yasuhiro, Hidenobu MORINAGA, Katsuhiko IZUMI, Kazuya IKEBUCHI, and Yasuhide KOUCHI. "ANTIGENICITY TESTS OF A NEW ANTINEOPLASTIC AGENT S-1." Journal of Toxicological Sciences 21, SupplementIII (1996): 661–73. http://dx.doi.org/10.2131/jts.21.supplementiii_661.

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25

Fránová, J., and K. Petrzik. "STRAWBERRY STERILITY â WHAT IS THE CAUSAL AGENT(S)?" Acta Horticulturae, no. 780 (January 2008): 27–34. http://dx.doi.org/10.17660/actahortic.2008.780.3.

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26

Chukwujekwu, J. C., C. A. Lategan, P. J. Smith, P. H. Coombes, and J. Van Staden. "Antiplasmodial and antibacterial agent(s) from Vernonia angulifolia DC." South African Journal of Botany 73, no. 2 (April 2007): 283. http://dx.doi.org/10.1016/j.sajb.2007.02.029.

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27

Kubota, Toshio, Jun Kanega, and Toshimasa Katagiri. "Application of (S)-trifluorolactic acid for chiral derivatizing agent." Journal of Fluorine Chemistry 97, no. 1-2 (July 1999): 213–21. http://dx.doi.org/10.1016/s0022-1139(99)00051-2.

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28

BOSMANS, J. P. "ChemInform Abstract: Ruppert′s Reagent: An Efficient Trifluoromethylating Agent." ChemInform 23, no. 38 (August 21, 2010): no. http://dx.doi.org/10.1002/chin.199238309.

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29

Montesanti, Gabriella, Maria Laura Parisella, Giusi Garofalo, and Daniela Pellegrino. "Nitrite as Direct S-Nitrosylating Agent of Kir2.1 Channels." International Scholarly Research Notices 2014 (July 16, 2014): 1–6. http://dx.doi.org/10.1155/2014/517126.

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Nitrite, a physiological nitric oxide (NO) storage form and an alternative way for NO generation, affects numerous biological processes through NO-dependent and independent pathways, including the S-nitrosylation of thiol-containing proteins. Mechanisms underlying these phenomena are not fully understood. The purpose of this study was to analyse in the rat heart (as prototype of mammalian heart) whether nitrite affects S-nitrosylation of cardiac proteins and the potential targets for S-nitrosylation. Rat hearts, perfused according to Langendorff, were exposed to nitrite. By Biotin Switch Method, we showed that nitrite treatment increased the degree of S-nitrosylation of a broad range of membrane proteins. Further analysis, conducted on subfractioned proteins, allowed us to identify a high level of nitrosylation in a small range of plasmalemmal proteins characterized by using an anti-Kir2.1 rabbit polyclonal antibody. We also verified that this effect of nitrite is preserved in the presence of the NO scavenger PTIO (2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide). Our results suggest, for the first time, that nitrite represents a direct S-nitrosylating agent in cardiac tissues and that inward-rectifier potassium ion channels (Kir2.1) are one of the targets. These observations are of relevance since they support the growing evidence that nitrite is not only a NO reserve but also a direct modulator of important functional cardiac proteins.

30

Schwartz, Jeffrey L. "Monofunctional alkylating agent-induced S-phase-dependent DNA damage." Mutation Research/Environmental Mutagenesis and Related Subjects 216, no. 2 (April 1989): 111–18. http://dx.doi.org/10.1016/0165-1161(89)90011-3.

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31

De Cabo, S. F., M. J. Hazen, M. L. Molero, and J. Fernández-Piqueras. "S-adenosyl-L-homocysteine: A non-cytotoxic hypomethylating agent." Experientia 50, no. 7 (July 1994): 658–59. http://dx.doi.org/10.1007/bf01952867.

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32

MANDAL, PARTHA SARATHI, and KRISHNENDU MUKHOPADHYAYA. "MOBILE AGENT BASED CHECKPOINTING WITH CONCURRENT INITIATIONS." International Journal of Foundations of Computer Science 18, no. 05 (October 2007): 1107–22. http://dx.doi.org/10.1142/s0129054107005157.

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Traditional message passing based checkpointing and rollback recovery algorithms perform well for tightly coupled systems. In wide area distributed systems these algorithms may suffer from large overhead due to message passing delay and network traffic. Mobile agents offer an attractive option for designing checkpointing schemes for wide area distributed systems. Network topology is assumed to be arbitrary. Processes are mobile agent enabled. When a process wants to take a checkpoint, it just creates one mobile agent. Concurrent initiations by multiple processes are allowed. Synchronization and creation of a consistent global state (CGS) for checkpointing is managed by the mobile agent(s). In the worst case, for k concurrent initiations among n processes, checkpointing algorithm requires a total of O(kn) hops by all the mobile agents. A mobile agent carries O(n/k) (on the average) size data.

33

Park, S., E. H. Durfee, and W. P. Birmingham. "Use of Markov Chains to Design an Agent Bidding Strategy for Continuous Double Auctions." Journal of Artificial Intelligence Research 22 (November 1, 2004): 175–214. http://dx.doi.org/10.1613/jair.1466.

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As computational agents are developed for increasingly complicated e-commerce applications, the complexity of the decisions they face demands advances in artificial intelligence techniques. For example, an agent representing a seller in an auction should try to maximize the seller?s profit by reasoning about a variety of possibly uncertain pieces of information, such as the maximum prices various buyers might be willing to pay, the possible prices being offered by competing sellers, the rules by which the auction operates, the dynamic arrival and matching of offers to buy and sell, and so on. A naive application of multiagent reasoning techniques would require the seller?s agent to explicitly model all of the other agents through an extended time horizon, rendering the problem intractable for many realistically-sized problems. We have instead devised a new strategy that an agent can use to determine its bid price based on a more tractable Markov chain model of the auction process. We have experimentally identified the conditions under which our new strategy works well, as well as how well it works in comparison to the optimal performance the agent could have achieved had it known the future. Our results show that our new strategy in general performs well, outperforming other tractable heuristic strategies in a majority of experiments, and is particularly effective in a 'seller?s market', where many buy offers are available.

34

Astuti, Yayuk, Rizka Andianingrum, Abdul Haris, and Adi Darmawan. "The Role of H2C2O4 and Na2CO3 as Precipitating Agents on The Physichochemical Properties and Photocatalytic Activity of Bismuth Oxide." Open Chemistry 18, no. 1 (March 10, 2020): 129–37. http://dx.doi.org/10.1515/chem-2020-0013.

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AbstractSynthesis of bismuth oxide synthesis through the precipitation method using H2C2O4 and Na2CO3 precipitating agents, identification of physicochemical properties and its photocatalysis activity for methyl orange degradation were conducted. The bismuth oxide synthesis was undertaken by dissolving Bi(NO3)3.5H2O in HNO3, then added precipitating agents to form precipitate. The results showed that bismuth oxide produced by H2C2O4 precipitating agent was a yellow powder containing a mixture of α-Bi2O3 (monoclinic) and β-Bi2O3 (tetragonal), porous with size of 28-85 μm. Meanwhile, the use of Na2CO3 as precipitating agent resulted in bismuth oxide consisting of α-Bi2O3 and β-Bi2O3 and Bi2O4, irregular shape without pore being 40-115 μm in size. Bismuth oxide synthesized with H2C2O4 precipitating agent showed higher photocatalytic activity compared to bismuth oxide synthesized using Na2CO3 on degrading methyl orange dye with degradation rate constants of 2.35x10-5 s-1 for H2C2O4 and 1.81x10-5 s-1 for Na2CO3.

35

Oliveira, Bárbara Malta Neves, Karime Botelho Alves, Gláucia Maria Bovi Ambrosano, Débora Alves Nunes leite Lima, Giselle Maria Marchi Baron, Flávio Henrique Baggio Aguiar, and Maria Cecília Caldas Giorgi. "Influence of photoactivation protocol and ceramic thickness on mechanical properties of cementation agents." Journal of Research in Dentistry 1, no. 3 (September 1, 2013): 253. http://dx.doi.org/10.19177/jrd.v1e32013253-262.

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The objective of this work was to evaluate the influence of photoactivation protocol and ceramic thickness on the Knoop microhardness (KHN) and the diametrical tensile strength (DTS) of a dual resin cement (Rely X ARC 3M ESPE (RL)) and a low viscosity composite resin (Filtek Z350 Flow 3M ESPE (Z)). Thereunto, cementation agents were photoactivated under ceramic discs of lithium disilicate with thickness of 1 and 2mm, and a glass slide (control group). The photoactivation was performed with halogen light-curing unit in continuous mode (XL 3000 3M Espe,) (XL) 500 mW/cm2 X 38 s, and with third generation LED light-curing unit (Valo Ultradent) in Standard mode (S) 1000 mW/cm2 X 19 s and Plasma Emulation mode (PE) 3200 mW/cm2 X 6 s, all them providing approximately 19 J/cm2. For KHN measurement, samples (5mm X 1mm) were made (n=8) and submitted to the KHN test on the top surface under a load of 10g applied for 10 seconds. For the DTS (n=8), samples (5mm X 3mm) were made and submitted to a compressive load of 0.5 mm/s until fracture. The data obtained were submitted to the statistical analysis. For KHN, there was statistically significant effect for interactions cementation agent X ceramic thickness, where RL presented higher values of KHN than Z. Comparing inside of cementation agent, RL presented higher values of KHN when photoactivated under 1 mm of ceramic thickness, different from the others. For Z, there was no statistically significant difference between different thickness and the control. The interaction cementation agent X photoactivation protocol was also significant, where for all the photoactivation protocols RL presented higher values of KHN than Z. For the cementation agent there was no significant difference in the values of KHN in all the photoactivation protocols for RL. For Z, the higher values of KHN were obtained by XL protocol and the lower values by S. For DTS, there was significant effect for the interaction cementation agent X photoactivation protocol, where in the photoactivation protocol factor, RL presented higher DTS when photoactivated by XL protocol. For cementation agent factor, the higher values of DTS for RL were obtained with XL, and the lower ones with S. For Z, similar values of DTS were obtained among photoactivation protocols evaluated. It was possible conclude that ceramic thickness and the photoactivation protocols exerted influence on the mechanical properties of cementation agents evaluated.

36

Golchini, K., and I. Kurtz. "NH3 permeation through the apical membrane of MDCK cells is via a lipid pathway." American Journal of Physiology-Renal Physiology 255, no. 1 (July 1, 1988): F135—F141. http://dx.doi.org/10.1152/ajprenal.1988.255.1.f135.

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The pathway for NH3 permeation across the apical membrane of MDCK cells was determined by measuring the effect of membrane fluidizing agents, protein reactive agents, and temperature on cellular NH3 influx. The rate of NH3 influx was calculated from the time course of increase in intracellular pH (pHi), measured with 2,7-biscarboxyethyl-5(6)-carboxyfluorescein, when MDCK cell monolayers were exposed to NH4Cl. The apical membrane NH3 permeability was 7.13 +/- 0.37 x 10(-3) cm/s (n = 12) at 37 degrees C and 1.23 +/- 0.07 x 10(-3) cm/s (n = 7) at 18 degrees C. In comparison, apical membrane permeability at 37 degrees C to the weak acids, valeric acid and acetic acid, were 1.39 +/- 0.11 x 10(-2) cm/s (n = 4) and 6.93 +/- 0.11 x 10(-3) cm/s (n = 4), respectively. The activation energy for NH3 permeation was 15.0 +/- 1.0 kcal/mol (17.5 degrees C-37.5 degrees C). In the presence of the membrane fluidizing agents, heptanol or chloroform, NH3 permeability increased in a dose-dependent manner. Heptanol (15 mM) significantly decreased the activation energy for NH3 permeation to 4.4 +/- 0.6 kcal/mol, P less than 0.001. The carboxyl reactive agent (1-cyclohexyl-3-(2-morpholinoethyl)carbodiimide metho-p-toluensulfonic acid 1 mM), aminoreactive agents (4,4'-diisothiocyanostilbene-2,2'-disulfonic acid 50 microM; picrylsulphonic acid 1 mM), the sulphydryl reactive agent (p-chloromercuriphenylsulfonic acid 1 mM), and the nonspecific membrane protein cleaving agent pronase (1 mg/ml) had no effect on the NH3 influx. The results suggest that NH3 permeates the plasma membrane of MDCK cells via a lipid pathway.

37

Purnama, Purba, Muhammad Samsuri, and Ihsan Iswaldi. "Properties Enhancement of High Molecular Weight Polylactide Using Stereocomplex Polylactide as a Nucleating Agent." Polymers 13, no. 11 (May 25, 2021): 1725. http://dx.doi.org/10.3390/polym13111725.

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As one of the most attractive biopolymers nowadays in terms of their sustainability, degradability, and material tune-ability, the improvement of polylactide (PLA) homopolymer properties by studying the utilization of stereocomplex polylactide (s-PLA) effectively and efficiently is needed. In this sense, we have studied the utilization of s-PLA compared to poly D-lactide (PDLA) homopolymers as a nucleating agent for PLA homopolymers. The mechanical and thermal properties and crystallization behavior of PLA homopolymers in the presence of nucleating agents have been evaluated using a universal testing machine, differential scanning calorimeter, and X-ray diffractometer instruments, respectively. PDLA and s-PLA materials can be used to increase the thermal and mechanical properties of poly L-lactide (PLLA) homopolymers. The s-PLA materials increased the mechanical properties by increasing crystallinity of the PLLA homopolymers. PLLA/s-PLA enhanced mechanical properties to a certain level (5% s-PLA content), then decreased them due to higher s-PLA materials affecting the brittleness of the blends. PDLA homopolymers increased mechanical properties by forming stereocomplex PLA with PLLA homopolymers. Non-isothermal and isothermal evaluation showed that s-PLA materials were more effective at enhancing PLLA homopolymer properties through nucleating agent mechanism.

38

satterfield, teresa. "it takes a(n) (agent-based) village." Behavioral and Brain Sciences 28, no. 4 (August 2005): 506–7. http://dx.doi.org/10.1017/s0140525x05410080.

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steels & belpaeme (s&b) take technical and conceptual shortcuts that have significant negative consequences on simulation implementation and agent behavior. justifiably, their model represents a proof of concept of the role of culturalism in category formation; nevertheless, the absence of detailed information concerning the embodiment of agents and the superficial implementation of learning approaches make their results less relevant than they could be.

39

Goldin, Alexander, and Craig Gotsman. "Geometric Message-Filtering Protocols for Distributed Multiagent Environments." Presence: Teleoperators and Virtual Environments 13, no. 3 (June 2004): 279–95. http://dx.doi.org/10.1162/1054746041422352.

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Message filtering is important for distributed multiagent systems, where a large number of dynamic agents participate in the system activity, but a typical agent is interested in only a very small dynamic subset of the other agents. The agent must be constantly informed on the status of this subset, and this is achieved by message passing between relevant agents. Message filtering is required to reduce the communications load on the system, which could be prohibitive if each agent must communicate with all others in order to obtain the information it needs. This paper deals with the case of a multiagent virtual environment, where each agent has a location in 2D space, and is interested in a small subset of the other agents, either those within a fixed range—as treated by previous authors, or the k other agents nearest to it—treated here for the first time. Furthermore, we treat the case of a fully distributed system, where no central server(s) are available to coordinate between the agents. The main challenge is then to design protocols that perform significant message filtering, yet enable each agent to maintain a consistent image of the other agents it is interested in. These protocols are useful in multi-agent games, simulations, and other virtual environments in which the geometric relationships between agents are important. They could also be useful for mobile-commerce and cellphone-based gaming applications.

40

Bikakis, Antonis, and Patrice Caire. "Contextual and Possibilistic Reasoning for Coalition Formation." AI 1, no. 3 (September 19, 2020): 389–417. http://dx.doi.org/10.3390/ai1030026.

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In multi-agent systems, agents often need to cooperate and form coalitions to fulfil their goals, for example by carrying out certain actions together or by sharing their resources. In such situations, some questions that may arise are: Which agent(s) to cooperate with? What are the potential coalitions in which agents can achieve their goals? As the number of possibilities is potentially quite large, how to automate the process? And then, how to select the most appropriate coalition, taking into account the uncertainty in the agents’ abilities to carry out certain tasks? In this article, we address the question of how to identify and evaluate the potential agent coalitions, while taking into consideration the uncertainty around the agents’ actions. Our methodology is the following: We model multi-agent systems as Multi-Context Systems, by representing agents as contexts and the dependencies among agents as bridge rules. Using methods and tools for contextual reasoning, we compute all possible coalitions with which the agents can fulfil their goals. Finally, we evaluate the coalitions using appropriate metrics, each corresponding to a different requirement. To demonstrate our approach, we use an example from robotics.

41

&NA;. "APA recommends donepezil as first-line agent for Alzheimer??s." Inpharma Weekly &NA;, no. 1087 (May 1997): 4. http://dx.doi.org/10.2165/00128413-199710870-00007.

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42

Benson, Al B. "S-1: another oral agent for patients with colorectal cancer." Lancet Oncology 14, no. 13 (December 2013): 1244–45. http://dx.doi.org/10.1016/s1470-2045(13)70533-3.

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43

Ohara, Gen, Hiroaki Satoh, and Nobuyuki Hizawa. "Pulmonary Toxicity by an Oral Anti-neoplatic Agent, S-1." Internal Medicine 47, no. 3 (2008): 187. http://dx.doi.org/10.2169/internalmedicine.47.0517.

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44

Tada, Yuji, Yuichi Takiguchi, Koichiro Tatsumi, and Takayuki Kuriyama. "Pulmonary Toxicity by an Oral Anti-neoplastic Agent, S-1." Internal Medicine 47, no. 3 (2008): 189. http://dx.doi.org/10.2169/internalmedicine.47.0574.

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45

Shin, Suk-Hoon, Kang-Moon Park, Eun-Bog Lee, Sung-Do Chi, and Seung-Jin Han. "Agent-based SAF Modeling Tool for DEVS M&S." Journal of the Korea Society for Simulation 22, no. 4 (December 31, 2013): 49–55. http://dx.doi.org/10.9709/jkss.2013.22.4.049.

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46

Partenhauser, Alexandra, Ožbej Zupančič, Snežana Podričnik, Julia Rohrer, Christina Leichner, and Andreas Bernkop-Schnürch. "Entirely S-protected silicone oil as second generation mucoadhesive agent." European Polymer Journal 76 (March 2016): 53–62. http://dx.doi.org/10.1016/j.eurpolymj.2016.01.028.

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47

Zhao, Wenhao, Xuping Ji, Yaqing Jiang, and Tinghong Pan. "Effect of C-S-H Nucleating Agent on Cement Hydration." Applied Sciences 11, no. 14 (July 20, 2021): 6638. http://dx.doi.org/10.3390/app11146638.

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This work aims to study the effect of a nucleating agent on cement hydration. Firstly, the C-S-H crystal nucleation early strength agent (CNA) is prepared. Then, the effects of CNA on cement hydration mechanism, early strength enhancement effect, C-S-H content, 28-days hydration degree and 28-days fractal dimension of hydration products are studied by hydration kinetics calculation, resistivity test, BET specific surface area test and quantitative analysis of backscattered electron (BSE) images, respectively. The results show that CNA significantly improves the hydration degree of cement mixture, which is better than triethanolamine (TEA). CNA shortens the beginning time of the induction period by 49.3 min and the end time of the cement hydration acceleration period by 105.1 min than the blank sample. CNA increases the fractal dimension of hydration products, while TEA decreases the fractal dimension. CNA significantly improves the early strength of cement mortars; the 1-day and 3-days strength of cement mortars with CNA are more than the 3-days and 7-days strength of the blank sample. These results will provide a reference for the practical application of the C-S-H nucleating agent.

48

Albano, Joseph P. "Iron-[S,S′]-EDDS (FeEDDS) Chelate as an Iron Source for Horticultural Crop Production: Marigold Growth and Nutrition, Spectral Properties, and Photodegradation." HortScience 46, no. 8 (August 2011): 1148–53. http://dx.doi.org/10.21273/hortsci.46.8.1148.

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Aminopolycarboxylic acid (APCA) complexones, commonly referred to as ligands or chelating agents, like ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DTPA), are commonly used in soluble fertilizers to supply copper (Cu), iron (Fe), manganese (Mn), and/or zinc (Zn) to plants. Offsite runoff and contamination of surface waters with these chelating agents is of increasing concern as a result of their reported ability to remobilize heavy metals in sediments and their low susceptibility to biodegradation. The APCA ethylenediaminedisuccinic acid (EDDS) is a structural isomer of EDTA with the [S,S′] stereoisomer of the complexone, a compound naturally produced by actinomycetes, and is biodegradable. Information on the use of [S,S′]-EDDS as a chelating agent in formulating soluble fertilizers for the production of horticultural crops is limited. Therefore, a series of studies were conducted with the objectives of evaluating Fe[S,S′]-EDDS as an Fe-chelate fertilizer agent in the production of marigold and [S,S′]-EDDS (free ligand) and/or Fe[S,S′]-EDDS spectral properties and vulnerability to photodegrdation. Marigold grown in peat-based media were fertilized with complete nutrient solution containing 1 mg·L−1 Fe from FeEDDS, FeEDTA, or FeDTPA. There was no significant difference in foliar Fe or Mn between Fe-chelate treatments, averaging 140 μg·g−1 and 88 μg·g−1, respectively, nor were there significant differences in leaf dry weight (2.30 g) between Fe treatments. Spectra of [S,S′]-EDDS and Fe[S,S′]-EDDS produced from ferrous or ferric sources of Fe absorbed maximally in the 210 to 230 nm and 238 to 240-nm range, respectively. The [S,S′]-EDDS complexone used in the current study, a 30% assay solution, had chromaphoric properties, appearing light yellow in color. When exposed to light, Fe[S,S′]-EDDS quickly degraded at a rate at least twice that of FeEDTA.

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Gotoh, Tsuyoshi, Yuichi Sudo, Fukuhito Ooshita, and Toshimitsu Masuzawa. "Dynamic Ring Exploration with (H,S) View." Algorithms 13, no. 6 (June 12, 2020): 141. http://dx.doi.org/10.3390/a13060141.

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The researches about a mobile entity (called agent) on dynamic networks have attracted a lot of attention in recent years. Exploration which requires an agent to visit all the nodes in the network is one of the most fundamental problems. While the exploration of dynamic networks with complete information or with no information about network changes has been studied, an agent with partial information about the network changes has not been considered yet despite its practical importance. In this paper, we consider the exploration of dynamic networks by a single agent with partial information about network changes. To the best of our knowledge, this is the very first work to investigate the exploration problem with such partial information. As a first step in this research direction, we focus on 1-interval connected rings as dynamic networks in this paper. We assume that the single agent has partial information called the ( H , S ) view by which it always knows whether or not each of the links within H hops is available in each of the next S time steps. In this setting, we show that H + S ≥ n and S ≥ ⌈ n / 2 ⌉ (n is the size of the network) are necessary and sufficient conditions to explore 1-interval connected rings. Moreover, we investigate the upper and lower bounds of the exploration time. It is proven that the exploration time is O ( n 2 ) for ⌈ n / 2 ⌉ ≤ S < 2 H ′ − 1 , O ( n 2 / H + n H ) for S ≥ max ( ⌈ n / 2 ⌉ , 2 H ′ − 1 ) , O ( n 2 / H + n log H ) for S ≥ n − 1 , and Ω ( n 2 / H ) for any S where H ′ = min ( H , ⌊ n / 2 ⌋ ) .

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Townsend, R. J., M. O'Callaghan, V. W. Johnson, and T. A. Jackson. "Compatibility of microbial control agents Serratia entomophila and Beauveria bassiana with selected fertilisers." New Zealand Plant Protection 56 (August 1, 2003): 118–22. http://dx.doi.org/10.30843/nzpp.2003.56.6051.

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Microbial control agents targeting soildwelling organisms need to be compatible with commonly used fertilisers The bacterium Serratia entomophila is used as a microbial control agent for control of the New Zealand grass grub Costelytra zealandica and Beauveria bassiana is an entomopathogenic fungus used to control a range of insect pests These biocontrol agents were formulated into granules and applied to pots together with five fertilisers commonly used on pastures throughout New Zealand Compatibility with S entomophila was also assessed in a field trial where treatments were applied by direct drilling and surface application There appeared to be no deleterious effect from the application of the fertiliser treatments on the establishment and survival of either S entomophila or B bassiana On the contrary there was a suggestion that some nitrogenous fertilisers may lead to an increase in numbers of the bacterial biocontrol agent

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