Relevant bibliographies by topics / Activator method

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  2. Dissertations / Theses
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Academic literature on the topic 'Activator method'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Activator method"

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Evans, Sara K., David P. Aiello, and Michael R. Green. "Fluorescence resonance energy transfer as a method for dissecting in vivo mechanisms of transcriptional activation." Biochemical Society Symposia 73 (January 1, 2006): 217–24. http://dx.doi.org/10.1042/bss0730217.

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The first step in transcriptional activation of protein-coding genes involves the assembly on the promoter of a large PIC (pre-initiation complex) comprising RNA polymerase II and a suite of general transcription factors. Transcription is greatly enhanced by the action of promoter-specific activator proteins (activators) that function, at least in part, by increasing PIC formation. Activator-mediated stimulation of PIC assembly is thought to result from a direct interaction between the activator and one or more components of the transcription machinery, termed the ‘target’. The unambiguous identification of direct, physiologically relevant in vivo targets of activators has been a considerable challenge in the transcription field. The major obstacle has been the lack appropriate experimental methods to measure direct interactions with activators in vivo. The development of spectral variants of green fluorescent protein has made it possible to perform FRET (fluorescence resonance energy transfer) analysis in living cells, thereby allowing the detection of direct protein–protein interactions in vivo. Here we discuss how FRET can be used to identify activator targets and to dissect in vivo mechanisms of transcriptional activation.
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Ruslinda, Yenni, Rizki Aziz, Larasati Sekar Arum, and Novita Sari. "The Effect of Activator Addition to the Compost with Biopore Infiltration Hole (BIH) Method." Jurnal Ilmu Lingkungan 19, no. 1 (April 28, 2021): 53–59. http://dx.doi.org/10.14710/jil.19.1.53-59.

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The composition of organic waste reaches 59% of the total municipal solid waste in Indonesia. One way to process organic waste is composting by utilizing microorganisms to break down waste into compost. Naturally, the composting process took a long time but can be accelerated by adding microorganisms to the activator. This study analyzes the quality and quantity of compost using the Biopore Infiltration Hole (BIH) method with activator addition. Composting was duplicated in the yard area with clay soil type and water infiltration rate of 0,3 cm/hour. The BIH was made in a 10 cm diameter, a 100 cm depth, and the distance between the holes was 50 cm. Composting variations consist of variations in the composition of the raw materials and the activators' uses. Variations in the raw material composition consisted of 100% yard waste, 100% food waste, 50% yard waste and 50% food waste, and 70% food waste and 30% yard waste. In contrast, the activator variations consisted of no activator, EM4 activator, and Stardec activator. Compost analysis consists of maturity, quality of physical and macro elements, and quantity of compost. The results showed that all variations of composting had met the standard of maturity and quality of physical and macro elements according to SNI 19-7030-2004. The addition of activator affected composting time and compost quantity. The composting time in BIH with activator ranges from 41-60 days. In BIH without activator ranges from 65-75 days, there was a reduction in composting time by 15-25 days with the activator addition. However, the activator addition caused reducing the compost quantity by 10-20%. The selection of compost variations by scoring results in compost with a composition of 50% yard waste and 50% food waste and the addition of Stardec activators was the best variation in terms of compost maturity, quality, and quantity.
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Sidelnikova, N. S. "Charge state of the activator in Ti:sapphire crystals grown by HDC method." Functional materials 22, no. 4 (December 15, 2015): 461–69. http://dx.doi.org/10.15407/fm22.04.461.

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Kessels, H., S. Béguin, R. Wagenvoord, and H. C. Hemker. "A Method for Measuring Activated Factor VIII in Plasma." Thrombosis and Haemostasis 66, no. 04 (1991): 430–34. http://dx.doi.org/10.1055/s-0038-1646433.

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SummaryA method is described which enables a quantitative measurement of the concentration of activated factor VIII (VIIIa) in plasma. Based on the ability of factor VIIIa to accelerate the activation of factor X by factor IXa, phospholipid and calcium ions, the course of factor X activation in time is measured using a chromogenic substrate. Free factor Xa is able to activate non-activated factor VIII present in a plasma sample, which increases the factor X activation velocity, and thus disturbs the measurement of factor VIIIa. Furthermore, factor Xa was found to be inactivated by serine protease inhibitors from the plasma sample. By adding surplus chromogenic substrate these reactions of factor Xa are inhibited and at the same time the rate of substrate conversion is a measure of the amount of factor Xa present. Factor X activation and amidolysis of chromogenic substrate then take place simultaneously. It is shown that under proper conditions the factor X activation velocity is linearly proportional to the factor VIIIa concentration. This causes the optical density to increase as a parabolic function of time. The concentration of factor VIIIa can be obtained from the quadratic coefficient of the equation describing the parabola. The method is specific for factor VIIIa in that the extrinsic factor X activator is shown to have no influence on the measurement of factor VIIIa in thromboplastin activated plasma. We conclude that a sensitive and reliable method for assessing factor VIIIa concentrations in plasma has been developed on the basis of simultaneous inhibition and measurement of factor Xa by a high concentration of chromogenic substrate.
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Kim, Taewan, and Choonghyun Kang. "Investigation of the Effect of Mixing Time on the Mechanical Properties of Alkali-Activated Cement Mixed with Fly Ash and Slag." Materials 14, no. 9 (April 29, 2021): 2301. http://dx.doi.org/10.3390/ma14092301.

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This is an experiment on the effect of mixing time for alkali-activated cement (AAC) using a binder mixed with ground granulated blast furnace slag (slag) and fly ash (FA) in a ratio of 1:1 on the mechanical properties. The mixing method of ASTM C305 was used as the basic mixing method, and the following mixing method was changed. Simply adding the same mixing time and procedure, the difference in the order of mixing slag and FA, and controlling the amount of activator and mixed water were considered. As a result of the experiment, the addition of the same mixing time and procedure, pre-injection of slag, and high-alkali mixed water in which half of the activator and mixing water were mixed showed the highest mechanical properties and a dense pore structure. As a result, the design of a blending method that can promote the activation action of slag rather than FA at room temperature was effective in improving the mechanical properties of AAC. In addition, these blending factors showed a clearer effect as the concentration of the activator increased. Through the results of this experiment, it was shown that high-temperature curing, high fineness of the binder, or even changing the setting of the mixing method without the use of excessive activators can lead to an improvement of mechanical properties.
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Nekrasova, Larisa P., Rufina I. Mikhailova, and Irina N. Ryzhova. "Impact of the electrochemical treatment on physical and chemical properties of water activated in various devices using electrochemical activation technology." Hygiene and sanitation 99, no. 9 (October 20, 2020): 904–10. http://dx.doi.org/10.47470/0016-9900-2020-99-9-904-910.

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Introduction. Currently, there are various technologies for water treatment and water purification, including ozonation of water, water treatment with UV radiation, ion exchange, magnetization. Electrochemical treatment of water by direct electric current, in which activated water is formed, characterized by many anomalous properties, is a modern approach to water treatment and water treatment. Purpose of the study. The study of the physicochemical properties of water-activated in devices of different manufacturers with different designs. Material and methods. To activate the water, activators were used: AP-1, Melesta, Zdrava, the filter of electrochemical water purification “ Izumrud”. The activity of hydrogen ions and the redox potential of water were measured using an Ecotest-120 ionomer with a switch. To measure the electrical conductivity of the solutions, an Expert-002 conductometer was used. Free chlorine was determined by the photocolorimetric method on a Spectroquant Multy colorimeter. Antioxidant activity was determined spectrophotometrically using a mediator system of potassium ferro-ferricyanide. Results. Chloride ions make a decisive contribution to the change in the physicochemical characteristics of anolyte upon activation of water. Sulfates and bicarbonates do not affect the prooxidant activity of the anolyte. The relaxation of catholytes obtained in membrane activators proceeds by a gradual increase in ORP, while the relaxation of activated water in the Zdrava diaphragmless activator proceeds in an oscillatory mode and is characterized by sharp changes in ORP. Anolytes are stable over time and slightly change the pH and ORP during storage. The activation of certain types of water in a diaphragmless activator does not lead to a decrease in the ORP, but its significant growth. Conclusion. Electrochemically activated water is a general term that hides in each case an unknown substance with an unpredictable effect. The use of standard devices even when using the same water sample, as a rule, leads to different physicochemical characteristics of activated water. When using different types of water, physicochemical characteristics differ significantly. The use of electrochemically activated water is unsafe.
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Zhurilova, Maya A., Igor A. Yanilkin, Elena A. Kiseleva, Irina N. Atamanyuk, and Evgeniy I. Shkolnikov. "NANOPOROUS ACTIVATED CARBONS FOR SUPER CAPACITORS WITH AQUEOUS AND ORGANIC ELECTROLYTES." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 4 (May 12, 2017): 82. http://dx.doi.org/10.6060/tcct.2017604.5520.

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An urgent task is to develop new methods of obtaining porous carbon materials with required complex of properties of cheap raw materials, for example, wastes of mechanical and chemical wood processing. This article deals with the subject of production of activated carbon for supercapacitors with different electrolytes. Activated carbons produced from two wood species, birch and alder, were compared. For both carbons identical dependences of the porous structure and electrochemical parameters of the carbons on activation conditions were determined in a wide range of activation parameters (temperature, alkali/carbon mass ratio). The work was done on the basis of commercial coals of alder. The correlations between the activation parameters of coal (temperature of activation and the relationship of the activator/raw materials), porous structure and functional parameters of capacitors were established. It was established that the acceptable value of the temperature of activation for aqueous electrolyte was 600 °C, and the ratio of activator/raw = 1.25, for organic – 600 °C, the ratio of the activator/raw = 2. A comprehensive study of carbon properties was conducted including a detailed study of the porous structure by the method of limited evaporation and electrochemical parameters of activated carbon in the composition of the supercapacitors. Assumptions were made on the features of formation of porous structure of activated carbons obtained by thermo-chemical synthesis using alkali as an activator, and on the influence of synthesis parameters on the electrochemical characteristics of the supercapacitors.Forcitation:Zhurilova M.A., Yanilkin I.V., Kiseleva E.A., Atamanyuk I.N., Shkolnikov E.I. Nanoporous activated carbons for super capacitors with aqueous and organic electrolytes. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 4. P. 82-87.
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Mumpuni, Irna Diah, Mamay Maslahat, and Devy Susanty. "Activation of oil palm empty bunches with hydrochloride acid & phosphoric acid and characterization based SNI No. 06-3730-1995." JURNAL SAINS NATURAL 11, no. 1 (April 29, 2021): 16. http://dx.doi.org/10.31938/jsn.v11i1.291.

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Activated carbon is a solid product resulting from carbonization and activation of lignocellulosic biomass by several methods and activators. Each activator can produce different characteristics of activated carbon. The activated carbon of Oil Palm Empty Fruit Bunches (OPEFB) is processed from Empty Fruit Bunches (EFB) waste, which is quite abundant in Indonesia. The purpose of this study was to determine the characteristics of OPEFB carbon that had been chemically activated using hydrochloric acid (HCl) and phosphoric acid (H3PO4) based on the Indonesian National Standard (SNI) No. 06 - 3730 - 1995. The research method consisted of the process of carbonization of OPEFB using a pyrolysis device at 400oC for 6 hours; activation of carbon with activator HCl and H3PO4 at various activator concentrations; characterization of activated carbon on the parameters of moisture content, ash content, absorption of iodine, and absorption of methylene blue. The results showed that the 0.5000 M HCl was the best activator that produced the quality of OPEFB activated carbon according to SNI 06 - 3730 - 1995 on parameters of moisture content, ash content and absorption of iodine.Keywords: Activated Carbon, Iodine Absorption, Oil Palm Empty Fruit BunchesABSTRAKAktivasi karbon tandan kosong kelapa sawit dengan asam klorida dan asam fosfat serta uji karakterisasi berdasarkan SNI No. 06–3730–1995Karbon aktif merupakan produk padatan yang dihasilkan dari karbonisasi dan aktivasi biomassa lignoselulosa dengan beberapa metode dan aktivator. Masing-masing aktivator dapat menghasilkan karakteristik karbon aktif yang berbeda. Karbon aktif Tandan Kosong Kelapa Sawit (TKKS) diolah dari limbah TKKS yang keberadaannya cukup melimpah di Indonesia. Tujuan penelitian ini adalah mengetahui karakteristik karbon TKKS yang telah diaktivasi secara kimia menggunakan aktivator asam klorida (HCl) dan asam fosfat (H3PO4) berdasarkan Standar Nasional Indonesia (SNI) No. 06 – 3730 – 1995. Metode penelitian terdiri atas proses karbonisasi TKKS menggunakan alat pirolisis pada suhu 400 ℃ selama 6 jam; aktivasi karbon dengan aktivator HCl dan H3PO4 pada berbagai konsentrasi aktivator; serta karakterisasi karbon aktif pada parameter kadar air dan abu, daya jerap terhadap iod serta daya jerap terhadap biru metilen. Hasil penelitian menunjukkan bahwa HCl 0,5 M merupakan aktivator terbaik dan karbon aktif yang dihasilkan memiliki karakteristik yang sesuai dengan SNI 06 – 3730 – 1995 pada parameter kadar air dan abu serta daya jerap terhadap iod.Kata kunci: Daya Jerap Iod, Karbon Aktif, Tandan Kosong Kelapa Sawit
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Yuan, Chun Hua. "Preparation and Character of Inorganic Polymeric Coagulates from Fly Ash by Activation Method." Applied Mechanics and Materials 401-403 (September 2013): 679–82. http://dx.doi.org/10.4028/www.scientific.net/amm.401-403.679.

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Using the main raw material of fly ash, metal scrap and waste industrial acid, with the activating method of specific self-activator ,can prepare poly-ferric-aluminum-silicate(PFAS) flocculant of inorganic polymeric coagulates. Specific activator can effectively open the Si-Al bond in the fly-ash, greatly enhance the leaching rate of each element by adding a special activator (M), the added amount of M: SiO2 = 1:3, activation time of 1 hour, activation temperature to 900 °C, get the original product, on 65 °C with turbid acid to stir and leach, leaching time is 2 hours, get the best rate of leaching. By Controlling Molar ratio of (Al + Fe) and Si 1:1, Silicic acid polymerization pH 1.7, by choosing the appropriate amounts of flocculants and flocculation time ,can get the very good flocculation function, the light transmission rate of the handling-water may amount to more than 92.7%.
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de Maat, Steven, Sanne van Dooremalen, Philip G. Groot, and Coen Maas. "A nanobody-based method for tracking factor XII activation in plasma." Thrombosis and Haemostasis 110, no. 09 (2013): 458–68. http://dx.doi.org/10.1160/th12-11-0792.

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SummaryThe physiological role of the plasma protein factor XII (FXII), as well as its involvement in human pathology, is poorly understood. While FXII is implicated in thrombotic pathology as a coagulation factor, it can contribute to inflammatory conditions without triggering coagulation. We recently generated nanobodies against the catalytic domain of activated FXII (FXIIa). Here, we describe two of these nanobodies, A10 and B7, both of which do not recognise FXII. Nanobody A10 recognises the catalytic domain of purified β-FXIIa (80 kDa), but not that of purified α-FXIIa (28 kDa), whereas nanobody B7 recognises both. This suggests minute differences in the catalytic domain between these isoforms of FXIIa. The detection of FXIIa by these nanobodies in plasma can become compromised through inactivation by serine protease inhibitors. This effect can be efficiently countered through the addition of the small-molecular protease inhibitor PPACK. Finally, we show that our nanobody-based assays in vitro distinguish various activation products of FXII that differ with the type of activator present: whereas procoagulant activators solely trigger the formation of a species that is captured by B7, proinflammatory activators first generate a species that is recognised by B7, which is later converted into a species that is recognised by A10. These findings suggest that a progressive proteolysis of FXIIa results in the generation a non-procoagulant form of FXIIa, whereas retention of intermediate forms triggers coagulation. Moreover, our findings indicate the development of nanobodies against activated enzymes offers improved opportunities to investigate their contribution to health and disease.
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Dissertations / Theses on the topic "Activator method"

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Mansoori, Moghaddam Sharmineh. "An image-based method for identification of new inhibitors of Signal Transducer Activator of Transcription 1." Thesis, Uppsala University, Department of Medical Biochemistry and Microbiology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-126371.

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Background: Chemotherapy and radiation resistance are major causes of failure in cancer treatment. The response to treatment in cancer cells depends on several mechanisms and pathways such as Janus kinases-signal transducers and activators of transcription JAK/STAT pathway. STAT1 was the first described transcription factor in the STAT family. STAT1 is activated by stimulation of signaling proteins such as type II interferon (IFN- γ) and the activated STAT1 translocates from cytoplasm to nucleus. The translocation of STAT1 would result in transcription and changes in the cell activity in terms of apoptosis, proliferation and angiogenesis. Overexpression of STAT1 is suggested to be involved in the development of resistance to chemotherapy and radiation. In this study, we were interested in finding an inhibitor of the STAT1 translocation. Material and methods: The cervix carcinoma cell line, HeLa, was exposed to test compounds for 2h and were then stimulated with IFN-γ to induce the translocation of STAT1. To detect STAT1-protein and the nucleus, the cells were stained with fluorescent antibodies and Hoescht 33324, respectively, using a STAT1 activator assay. The difference in fluorescence intensity between cytoplasm and nucleus was measured using a high-content microscope, ArrayScan®. Results: β-lapachone and CRA-1 were found to be inhibitors of STAT1 translocation.

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Staubli, Justin Charles. "Development of a phosphoprotein enrichment method to identify and characterize phosphoproteins within leukemia following treatment with the PP2A activator, FTY720." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338269265.

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Fischer, Stefan Markus [Verfasser]. "Designer Transcription Activator Like Effector - Chromatin Affinity Purification (dTALE-ChAP) a novel in planta method to unravel the protein coverage at a promoter of choice / Stefan Markus Fischer." Tübingen : Universitätsbibliothek Tübingen, 2020. http://d-nb.info/1217249273/34.

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Nakagawa, Kyuya. "Studies on mesoporous activated carbons from solid wastes by novel pre-treatment method for steam-activation." 京都大学 (Kyoto University), 2003. http://hdl.handle.net/2433/148885.

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Kopecký, Jan. "Určení kinetických parametrů reakcí pomocí DSC měření." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378413.

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The master thesis deals with DSC measurments a calculation of kinetic parameters. In the theoretical part, iron alotropy is briefly described, followed by a description of the DSC analysis itself. The thesis also includes division and derivation of isoconversional methods for calculating the activation energy. In the experimental part, a series of measurments is perfomed on pure iron prepared by Cold Spray method. In the paper the influence of deformation on the Curie temperature of the magnetic transformation in -Fe and transformation > is investigated. The activation energy is calculated for transformation > for different degrees of deformation. The degree of deformation is monitored by channeling contrast.
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Jue, Stephen Gregory. "Characterizing Neurotransmitter Receptor Activation with a Perturbation Based Decomposition Method." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1631.

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The characterization of postsynaptic potentials, in terms of neurotransmitter receptor activation, is of clinical significance because information associated with receptor activation can be used in the diagnosis and study of neurological disorders. Single-unit recordings provide a method of measuring postsynaptic potentials in neurons using a microelectrode system, but yield no detailed information regarding the neurotransmitter receptors that contribute to the potential. To determine the types of neurotransmitter receptors that result in a compound postsynaptic potential from a microelectrode reading, decomposition of the potential is necessary. In this work, a perturbation-based decomposition method developed by R. Szlavik is evaluated for this application, and compared to a generalized Fourier series approach. The resultant estimator is valid for decomposition of multiple-receptor compound postsynaptic potentials as well as single-receptor compound postsynaptic potentials. The estimator also yields a satisfactory decomposition of experimental postsynaptic potential data found in the literature.
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Brown, Sean Pomeroy Hsieh-Wilson Linda C. "Iminium and enamine activation: methods for enantioselective organocatalysis /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-02242005-174252.

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Morley, Matthew Christopher. "Enhanced desorption : a method for off-line bioregeneration of granular activated carbon loaded with high explosives /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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Fan, Ye. "Eulerian finite volume method for musculoskeletal simulation and data-driven activation." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44645.

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Sugden, Frank Daniel. "A NOVEL DUAL MODELING METHOD FOR CHARACTERIZING HUMAN NERVE FIBER ACTIVATION." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1318.

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Presented in this work is the investigation and successful illustration of a coupled model of the human nerve fiber. SPICE netlist code was utilized to describe the electrical properties of the human nervous membrane in tandem with COMSOL Multiphysics, a finite element analysis software tool. The initial research concentrated on the utilization of the Hodgkin-Huxley electrical circuit representation of the nerve fiber membrane. Further development of the project identified the need for a linear circuit model that more closely resembled the McNeal linearization model augmented by the work of Szlavik which better facilitated the coupling of both SPICE and COMSOL programs. Related literature was investigated and applied to validate the model. This combination of analysis tools allowed for the presentation of a consistent model and revealed that a coupled model produced not only a qualitatively comparable, but also a quantitatively comparable result to studies presented in the literature. All potential profiles produced during the simulation were compared against the literature in order to meet the purpose of presenting an advanced computational model of human neural recruitment and excitation. It was demonstrated through this process that the correct usage of neuron models within a two dimensional conductive space did allow for the approximate modeling of human neural electrical characteristics.
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Books on the topic "Activator method"

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Lacey, Bill. 20th century American history activators. El Cajon, CA: Interaction Publishers, 1995.

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K, Antonov V., ed. Vektornyĭ metod predstavlenii͡a fermentativnykh reakt͡siĭ. Moskva: "Nauka", 1990.

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Martell, Christopher R. Behavioral activation for depression: A clinician's guide. New York: Guilford Press, 2010.

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Plant MAP kinases: Methods and protocols. New York: Humana Press, 2014.

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Sona, Dimidjian, and Herman-Dunn Ruth, eds. Behavioral activation for depression: A clinician's guide. New York: Guilford Press, 2010.

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Transcriptional regulation: Methods and protocols. New York: Humana Press, 2012.

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Resource activation: Using clients' own strengths in psychotherapy and counseling. Cambridge, MA: Hogrefe, 2010.

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Gadjeva, Mihaela. The complement system: Methods and protocols. New York: Humana Press, 2014.

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Cheng, Gui-Juan. Mechanistic Studies on Transition Metal-Catalyzed C–H Activation Reactions Using Combined Mass Spectrometry and Theoretical Methods. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4521-9.

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Kim, Kap-sŏng. Tongnam Asia kukka wa ŭi kukche kyoyuk hyŏmnyŏk hwalsŏnghwa pangan yŏnʼgu =: Study on the method to activate the cooperation in international education with East-Asian countries. Sŏul-si: Hanʼguk Kyoyuk Kaebarwŏn, 2006.

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Book chapters on the topic "Activator method"

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Frank, Lukas, Robin Weinmann, Fabian Erdel, Jorge Trojanowski, and Karsten Rippe. "Transcriptional Activation of Heterochromatin by Recruitment of dCas9 Activators." In Methods in Molecular Biology, 307–20. New York, NY: Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-1597-3_17.

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Ernst, Orna, Sharat J. Vayttaden, and Iain D. C. Fraser. "Measurement of NF-κB Activation in TLR-Activated Macrophages." In Methods in Molecular Biology, 67–78. New York, NY: Springer New York, 2017. http://dx.doi.org/10.1007/978-1-4939-7519-8_5.

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Huddleston, Alan L. "Activation Analysis Methods." In Quantitative Methods in Bone Densitometry, 161–78. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1725-8_7.

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Moon, Sook Young, Myung Soo Kim, Hyun Sik Hahm, and Yun Soo Lim. "Preparation of Activated Carbon Fibers by Chemical Activation Method with Hydroxides." In Materials Science Forum, 750–53. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-995-4.750.

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Thrower, Peter A. "Activated Carbons." In Inorganic Reactions and Methods, 170–71. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145333.ch120.

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Gou, Xiaoping, and Jia Li. "Activation Tagging." In Methods in Molecular Biology, 117–33. Totowa, NJ: Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-809-2_9.

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Révay, Zsolt, and Tamás Belgya. "Principles of the PGAA method." In Handbook of Prompt Gamma Activation Analysis, 1–30. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-0-387-23359-8_1.

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Wang, Wenxin, Haibao Lu, Jinsong Leng, and Yanju Liu. "Shape-Memory Activation Methods." In Cold Hibernated Elastic Memory Structure, 207–30. First edition. | Boca Raton, FL : CRC Press/Taylor & Francis Group, 2018.: CRC Press, 2018. http://dx.doi.org/10.1201/9780429425950-25.

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Higashi, Fukuji. "Activated Polycondensation." In New Methods for Polymer Synthesis, 211–36. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4899-2356-1_7.

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Conzelmann, Ernst, and Konrad Sandhoff. "Activator Proteins for Lysosomal Glycolipid Hydrolysis." In Methods of Biochemical Analysis, 1–23. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/9780470110539.ch1.

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Conference papers on the topic "Activator method"

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Mehboob, Khurram, Xinrong Cao, and Majid Ali. "Application of Coincidence Technique for Neutron Flux Mapping in Boron Concentrated Paraffin Wax." In 2013 21st International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icone21-15585.

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In this paper, Neutron Activation Technique (NAT) is used for neutron flux mapping in homogenous boron concentrated paraffin wax. For this purpose, activator detectors were prepared by irradiating process in an Americium-Beryllium (241Am–9Be) neutron field for the required time period to induce approximate saturation activity. After this, the induced activity was measured by time coincidence method using a Sodium iodide (thallium) NaI (Tl) crystal detector and organic scintillation “Anthracene” detector for gamma ray and beta particle detection respectively. The activator detectors were activated at different radii from the irradiator neutron source in boron mixed paraffin wax. The flux profile was mapped by measuring induced activity. Errors in measurements and calculations were estimated by Poisson distribution.
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Robbins, K. C., and I. Boreisha. "COVALENT Mr ∼92,000 HYBRID PLASMINOGEN ACTIVATOR DERIVED FROM THE PLASMIN FIBRIN-BINDING DOMAIN AND THE TISSUE PLASMINOGEN ACTIVATOR CATALYTIC DOMAIN." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643938.

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A covalent hybrid plasminogen activator was prepared from the sulfhydryl forms of the NH2-terminal A chain of human plasmin (Pln^) containing the fibrin-binding domain, and the COOH-terminal B chain of tissue plasminogen activator (t-PAB) containing the catalytic domain. The PlnA (SH)2 and t-PAB(SH) chains were mixed in a 1:1 molar ratio, and hybridization was allowed to proceed at 4 °C for 6 days. The covalent PlnA-t-PAB hybrid activator was isolated from the mixture by a two-step affinity chromatography method, with L-lysine-substituted Sepharose and Zn-chelated agarose. The protein yield of purified hybrid was 10% with a major component (77%) of Mr ∼92,000. The covalent PlnA-t-PAB hybrid activator, contained 1 mol of each chain; after reduction, it gave the two parent chains, PlnA and t-PAA, also shown to be present by double immunodiffusion. The specific plasminogen activator activity, with soluble fibrin, and the specific amidolytic activity, of the purified covalent hybrid activator was determined to be 200,000 IU/mg of protein, about 40% of the specific activity of the parent t-PA. In a fibrin clot lysis assay, the covalent hybrid activator and t-PA have similar specific fibrinolytic activities, 500,000 IU/mg of protein; however, the clot lysis time curves were not parallel. The binding of the covalent PlnA-t-PAB hybrid activator and t-PA to forming fibrin were found to be similar; at physiological fibrinogen concentrations, binding of both activators to forming fibrin was about 90%.
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Lee, S. G., N. K. Kalvan, J. Wilhelm, W.-T. Hum, R. Rappaport, S. M. Chenq, S. Dheer, C. Urbano, M. Levner, and P. P. Hung. "CONSTRUCTION AND EXPRESSION OF HYBRID PLASMINOGEN ACTIVATORS PREPARED FROM TISSUE-PLASMINOGEN ACTIVATOR (t-PA) AND UROKINASE (u-PA) GENES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643939.

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A covalent hybrid plasminogen activator was prepared from the sulfhydryl forms of the NH2-terminal A chain of human plasmin (Pln^) containing the fibrin-binding domain, and the COOH-terminal B chain of tissue plasminogen activator (t-PAB) containing the catalytic domain. The PlnA (SH)2 and t-PAB(SH) chains were mixed in a 1:1 molar ratio, and hybridization was allowed to proceed at 4 °C for 6 days. The covalent PlnA-t-PAB hybrid activator was isolated from the mixture by a two-step affinity chromatography method, with L-lysine-substituted Sepharose and Zn-chelated agarose. The protein yield of purified hybrid was 10% with a major component (77%) of Mr ∼92,000. The covalent PlnA-t-PAB hybrid activator, contained 1 mol of each chain; after reduction, it gave the two parent chains, PlnA and t-PAA, also shown to be present by double immunodiffusion. The specific plasminogen activator activity, with soluble fibrin, and the specific amidolytic activity, of the purified covalent hybrid activator was determined to be 200,000 IU/mg of protein, about 40% of the specific activity of the parent t-PA. In a fibrin clot lysis assay, the covalent hybrid activator and t-PA have similar specific fibrinolytic activities, 500,000 IU/mg of protein; however, the clot lysis time curves were not parallel. The binding of the covalent PlnA-t-PAB hybrid activator and t-PA to forming fibrin were found to be similar; at physiological fibrinogen concentrations, binding of both activators to forming fibrin was about 90%.
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Electricwala, A. "A SPECTROPHOTOMETRIC METHOD FOR FIBRIN CLOT LYSIS ASSAY." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644839.

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Clot lysis assay is one of the many methods being used to quantitate tissue plasminogen activator in biological fluids and other media. It has been suggested that this assay may be less reproducible and subject to error due to variation between laboratories in determining the end point of clot lysis, especially at lower concentrations of the activator. It has been found that this assay method can be semi-automated by monitoring the absorbance of the fibrin clot, and determining the end point, in a spectrophotometer. Standard clots containing varying concentrations of tPA are prepared in semi-micro cuvettes, held at 37° C and the absorbance monitored continuosly at 600nm. The turbidity of the sample is increased near its lytic time, which results in a sharp absorbance peak. The time elapsed from the start to the appearence of this peak is taken as the lytic time of the clot. Using standard prepration of tPA, a straight line calibration graph of log lytic time versus log concentration is obtained, with a standard deviation for each determination of ± 5%. This method has the advantage of being simple, reproducible and less prone to operator error.
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Xu, Jiaqing, Qi Lv, and Yong Dou. "A novel distributed ranking method based on activator-inhibitor model for multicellular array architecture." In 2012 IEEE International Conference on Computer Science and Automation Engineering (CSAE). IEEE, 2012. http://dx.doi.org/10.1109/csae.2012.6273050.

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Tiwari, S. P., S. Singh, A. Kumar, and K. Kumar. "Upconversion study of singly activator ions doped La2O3 nanoparticle synthesized via optimized solvothermal method." In INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2015): Proceeding of International Conference on Condensed Matter and Applied Physics. Author(s), 2016. http://dx.doi.org/10.1063/1.4946188.

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Itagaki, Y., A. Suzuki, and K. Higashio. "TISSUE PLASMINOGEN ACTIVATOR (T-PA) PRODUCTION BY HUMAN EMBRYONIC FIBROBLASTS, IMR-90, STIMULATED BY PROTEOSE PEPTONE." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644392.

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In order to study the mechanisms by which t-PA production by IMR-90 cells are induced, lactalbumin hydrolysates, yeast extracts, and peptones were tested for their ability to induce t-PA production by IMR-90 cells. IMR-90 cells were grown to confluency in Dulbecco's modified Eagle's medium(DMEM) supplemented with 10% fetal calf serum at 37°C in 5% CO2 in air. And the cells were maintained in serum free medium containing 1% of each additive. The plasminogen activator activity was determined by fibrin plate method, using urokinase or t-PA from WHO as a standard. It was found that proteose peptone (Difco) and neopeptone (Difco) strongly induced the t-PA production by IMR-90 cells. The t-PA production in DMEM containing 1% proteose peptone reached approx. 200IU/ml after incubation at 37°C for 6 days and was from twenty to fifty times higher than that in DMEM only (control medium). The t-PA production by IMR-90 cells stimulated by proteose peptone was strongly inhibited by RNA synthesis inhibitor(actinomycin D) or prorein synthesis inhibitor (cycloheximide). Hence, t-PA production by IMR-90 cells stimulated by proteose peptone was mediated by de novo synthesis. Chelating reagent (EGTA), Ca2+ entry blocker (verapamil), inhibitor of phospholipase A2 (quinacrine) and inhibitor of lipoxygenase (NDGA) strongly inhibited the t-PA production by IMR-90 cells stimulated by proteose peptone. Inhibitor of cyclooxygenase (indomethacin) was inert. On the contrary, activators of phospholipase A2(Ca2+,melittin) and hydroxy-unsaturated fatty acid (5-HETE) derived from arachidonic acid by lipoxygenase strongly enhanced t-PA production by IMR-90 cells stimulated by proteose peptone. These results suggest that the t-PA production by IMR-90 cells stimulated by proteose peptone is mediated by arachidonate cascade involving the following pathway; (1) proteose peptone stimulates the membrane of IMR-90, (2) this stimulus causes Ca2+ influx, (3) Ca2+ ion activates phopholipase A2, (4) activated phospholipase A2 liberates arachidonic acid from phospholipids in ceil membrane and (5) lipoxygenase converts arachidonic acid into the hydroxy-unsaturated fatty acid.
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Johannessen, M., F. E. Nielsen, K. Pingel, and L. C. Petersen. "FIBRINOLYTIC EFFECT OF ONE-CHAIN TTSSUE-TYPE PLASMINOGEN ACTIVATOR." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644406.

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The fibrinolytic properties of authentic one- and two-chain recombinant tPA were compared to those of a plasmin resistant one-chain tPA analogue, tPA-Gly275, which is point mutated in Arg275 of the activation site. The proteins were characterised by reversed phase HPLC, reduced SDS-PAGE, and their concentrations determined by the BCA (modified Lowry) method. When equivalent conc. of these enzymes were tested for fibrinolytic activity by means of clot lysis and fibrin plate lysis methods, the values found for two-chain tPA were consistently 50% higher than one-chain tPA forms. The time course for plasmin catalysed one-chain tPA cleavage during fibrin clot lysis was determined by means of 125I-tPA. The cleavage is not instantaneous, and one-chain tPA may account for a considerable fraction of the total amount of plasmin formed. This is confirmed by similar experiments with 125I-tPA-Gly275, which is essentially intact one-chain tPA at the time of fibrin clot lysis. The effect of tPA activation site cleavage was also studied using plasmin coupled to sepharose beads. Plasmin sepharose was removed at different time intervals, and tPA was tested for amidolytic activity with > Glu-Gly-Arg-pNA and fibrinolytic activity as measured by fibrin clot lysis time as well as by fibrin plate methods. The results indicate that in the presence of fibrin, plasminogen can be activated by one-chain tPA at a considerable rate. On the other hand, the fact that the fibrinolytic activity measured by conventional assays is lower with one-chain tPA than with two-chain tPA should be considered when of these methods are used for standardization.
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Zhou, Xiaofeng, Abdumalik Talat ogli Gayubov, Shihao Le, and Ying Yang. "Selection Method of Activator for Indigenous Energized Microorganisms in Daqing Oilfield with Low Permeability Reservoirs." In SPE Russian Petroleum Technology Conference. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/201835-ms.

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Zhou, Xiaofeng, Abdumalik Talat ogli Gayubov, Shihao Le, and Ying Yang. "Selection Method of Activator for Indigenous Energized Microorganisms in Daqing Oilfield with Low Permeability Reservoirs (Russian)." In SPE Russian Petroleum Technology Conference. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/201835-ru.

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Reports on the topic "Activator method"

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Becker, Jennifer J., and Michel R. Gagne. Selective Methods for C-X Activation in Carbohydrates. Fort Belvoir, VA: Defense Technical Information Center, January 2013. http://dx.doi.org/10.21236/ada579558.

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Asenath-Smith, Emily, Emma Ambrogi, Lee Moores, Stephen Newman, and Jonathon Brame. Leveraging chemical actinometry and optical radiometry to reduce uncertainty in photochemical research. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42080.

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Subtle aspects of illumination sources and their characterization methods can introduce significant uncertainty into the data gathered from light-activated experiments, limiting their reproducibility and technology transition. Degradation kinetics of methyl orange (MO) and carbamazepine (CM) under illumination with TiO₂ were used as a case study for investigating the role of incident photon flux on photocatalytic degradation rates. Valerophenone and ferrioxalate actinometry were paired with optical radiometry in three different illumination systems: xenon arc (XE), tungsten halogen (W-H), and UV fluorescent (UV-F). Degradation rate constants for MO and CM varied similarly among the three light systems as k W-H < kiv-F < kXE, implying the same relative photon flux emission by each light. However, the apparent relative photon flux emitted by the different lights varied depending on the light characterization method. This discrepancy is shown to be caused by the spectral distribution present in light emission profiles, as well as absorption behavior of chemical actinometers and optical sensors. Data and calculations for the determination of photon flux from chemical and calibrated optical light characterization is presented, allowing us to interpret photo-degradation rate constants as a function of incident photon flux. This approach enabled the derivation of a calibrated ‘rate-flux’ metric for evaluating and translating data from photocatalysis studies.
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Bianco, Robert, Mark A. Harper, and Robert A. Rapp. Codeposition of Elements in Diffusion Coatings by the Halide-Activated Pack Cementation Method. Fort Belvoir, VA: Defense Technical Information Center, September 1991. http://dx.doi.org/10.21236/ada242860.

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Krauter, Paula, Mark D. Tucker, Matthew S. Tezak, and Raymond Boucher. Enhancing activated-peroxide formulations for porous materials: Test methods and results. Office of Scientific and Technical Information (OSTI), December 2012. http://dx.doi.org/10.2172/1177074.

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Kelly, J. G., and D. W. Vehar. Measurement of neutron spectra in varied environments by the foil-activation method with arbitrary trials. Office of Scientific and Technical Information (OSTI), December 1987. http://dx.doi.org/10.2172/5327365.

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Kennedy, Alan, Mark Ballentine, Andrew McQueen, Christopher Griggs, Arit Das, and Michael Bortner. Environmental applications of 3D printing polymer composites for dredging operations. Engineer Research and Development Center (U.S.), January 2021. http://dx.doi.org/10.21079/11681/39341.

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This Dredging Operations Environmental Research (DOER) technical note disseminates novel methods to monitor and reduce contaminant mobility and bioavailability in water, sediments, and soils. These method advancements are enabled by additive manufacturing (i.e., three-dimensional [3D] printing) to deploy and retrieve materials that adsorb contaminants that are traditionally applied as unbound powders. Examples of sorbents added as amendments for remediation of contaminated sediments include activated carbon, biochar, biopolymers, zeolite, and sand caps. Figure 1 provides examples of sorbent and photocatalytic particles successfully compounded and 3D printed using polylactic acid as a binder. Additional adsorptive materials may be applicable and photocatalytic materials (Friedmann et al. 2019) may be applied to degrade contaminants of concern into less hazardous forms. This technical note further describes opportunities for U.S. Army Corps of Engineers (USACE) project managers and the water and sediment resource management community to apply 3D printing of polymers containing adsorptive filler materials as a prototyping tool and as an on-site, on-demand manufacturing capability to remediate and monitor contaminants in the environment. This research was funded by DOER project 19-13, titled “3D Printed Design for Remediation and Monitoring of Dredged Material.”
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Olthof, I., S. Tolszczuk-Leclerc, B. Lehrbass, Y. Shelat, V. Neufeld, and V. Decker. New flood mapping methods implemented during the 2017 spring flood activation in southern Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/306577.

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Lee, Dongwon, Brian M. Bucher, Kenneth M. Krebs, Edward H. Seabury, and Jayson Wharton. Determination of the Deuterium-Tritium (D-T) Generator Neutron Flux using Multi-foil Neutron Activation Analysis Method. Office of Scientific and Technical Information (OSTI), May 2019. http://dx.doi.org/10.2172/1524045.

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Hassoon, S., N. Rajapakse, and D. L. Snavely. Photolysis Within the Absorption Band Contour for Methyl Isocyanide: Vibrational Overtone Activation. Fort Belvoir, VA: Defense Technical Information Center, May 1991. http://dx.doi.org/10.21236/ada237131.

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Popov, Victor. Transformation of Aerodynamic Capture Principle to Dynamic Activation of Fuel Mixture principle, Program and Associated Method of Preliminary Tests. Intellectual Archive, July 2019. http://dx.doi.org/10.32370/iaj.2157.

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