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Nikiforov-Nikishin D, Antipov S, Kochetkov N, Nikiforov-Nikishin A, Bychkova T. Evaluation of secretory activity in carp pancreatocytes (Cyprinus carpio L.) when using lactobacillus-based chelate and probiotic supplemental feed complexes. BRAZ J BIOL 2021; 83:e250219. [PMID: 34909836 DOI: 10.1590/1519-6984.250219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/04/2021] [Indexed: 11/22/2022] Open
Abstract
The experimental research was carried out on the juvenile carp (Cyprinus carpio L.). The impact from supplemental feeds consisting of variable concentrations of chelate compounds, biogenic trace elements and probiotic lactobacillus-based product Bacillus subtilis VKPM B-2335 was evaluated. Optical and qualitative parameters of the lactobacillus base were studied in order to identify the major group of substances potentially able to influence the end result. The purpose of this research was to identify changes in the structure of the zymogen granules and their dimensions at which supplemental feeds produce a stimulating effect on the synthesis of zymogens in exogenous cells of the secretory part of pancreas. At the outcome of the study, for the first time, it was possible to prove that the integrated action of chelates and lactobacillus-based probiotics complemented each other. Metal chelate compounds contributed to enlargement of the zymogen granules, if compared to the control values. The bacterial products accelerated production of the zymogen granules in acinar cells diffusely located in carp hepatopancreas.
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Affiliation(s)
- D Nikiforov-Nikishin
- Moscow State University of Technologies and Management - FCU, Department of Ecology and Nature Management, Moscow, Russia
| | - S Antipov
- Moscow State University of Technologies and Management - FCU, Research Center of Molecular Foundations of Biotechnology of Living Systems, Moscow, Russia.,Voronezh State University - VSU, Department of Biophysics and Biotechnology, Voronezh, Russia
| | - N Kochetkov
- Moscow State University of Technologies and Management - FCU, Department of Biology and Ichthyology, Moscow, Russia
| | - A Nikiforov-Nikishin
- Moscow State University of Technologies and Management - FCU, Department of Biology and Ichthyology, Moscow, Russia
| | - T Bychkova
- Moscow State University of Technologies and Management - FCU, Department of Biotechnology of Meat and Dairy Raw Materials Processing, Moscow, Russia
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Antipov S, Baryshev SV, Butler JE, Antipova O, Liu Z, Stoupin S. Single-crystal diamond refractive lens for focusing X-rays in two dimensions. Erratum. J Synchrotron Radiat 2016; 23:850. [PMID: 27140168 PMCID: PMC4932872 DOI: 10.1107/s1600577516006159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
A correction is made to a citation in the article by Antipov et al. (2016) [J. Synchrotron Rad. 23, 163-168].
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Affiliation(s)
- S. Antipov
- Euclid Techlabs LLC, Solon, OH 44139, USA
| | | | - J. E. Butler
- Euclid Techlabs LLC, Solon, OH 44139, USA
- Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - O. Antipova
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - Z. Liu
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - S. Stoupin
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
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Wang D, Antipov S, Jing C, Power JG, Conde M, Wisniewski E, Liu W, Qiu J, Ha G, Dolgashev V, Tang C, Gai W. Interaction of an Ultrarelativistic Electron Bunch Train with a W-Band Accelerating Structure: High Power and High Gradient. Phys Rev Lett 2016; 116:054801. [PMID: 26894715 DOI: 10.1103/physrevlett.116.054801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Indexed: 06/05/2023]
Abstract
Electron beam interaction with high frequency structures (beyond microwave regime) has a great impact on future high energy frontier machines. We report on the generation of multimegawatt pulsed rf power at 91 GHz in a planar metallic accelerating structure driven by an ultrarelativistic electron bunch train. This slow-wave wakefield device can also be used for high gradient acceleration of electrons with a stable rf phase and amplitude which are controlled by manipulation of the bunch train. To achieve precise control of the rf pulse properties, a two-beam wakefield interferometry method was developed in which the rf pulse, due to the interference of the wakefields from the two bunches, was measured as a function of bunch separation. Measurements of the energy change of a trailing electron bunch as a function of the bunch separation confirmed the interferometry method.
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Affiliation(s)
- D Wang
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Tsinghua University, Beijing, 100084, China
| | - S Antipov
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Euclid Techlabs LLC, Solon, Ohio 44139, USA
| | - C Jing
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Euclid Techlabs LLC, Solon, Ohio 44139, USA
| | - J G Power
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - M Conde
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - E Wisniewski
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - W Liu
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Qiu
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Euclid Techlabs LLC, Solon, Ohio 44139, USA
| | - G Ha
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - V Dolgashev
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - C Tang
- Tsinghua University, Beijing, 100084, China
| | - W Gai
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
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Antipov S, Baryshev SV, Butler JE, Antipova O, Liu Z, Stoupin S. Single-crystal diamond refractive lens for focusing X-rays in two dimensions. J Synchrotron Radiat 2016; 23:163-168. [PMID: 26698059 PMCID: PMC4733930 DOI: 10.1107/s1600577515020639] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 10/30/2015] [Indexed: 06/05/2023]
Abstract
The fabrication and performance evaluation of single-crystal diamond refractive X-ray lenses of which the surfaces are paraboloids of revolution for focusing X-rays in two dimensions simultaneously are reported. The lenses were manufactured using a femtosecond laser micromachining process and tested using X-ray synchrotron radiation. Such lenses were stacked together to form a standard compound refractive lens (CRL). Owing to the superior physical properties of the material, diamond CRLs could become indispensable wavefront-preserving primary focusing optics for X-ray free-electron lasers and the next-generation synchrotron storage rings. They can be used for highly efficient refocusing of the extremely bright X-ray sources for secondary optical schemes with limited aperture such as nanofocusing Fresnel zone plates and multilayer Laue lenses.
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Affiliation(s)
- S. Antipov
- Euclid Techlabs LLC, Solon, OH 44139, USA
| | | | - J. E. Butler
- Euclid Techlabs LLC, Solon, OH 44139, USA
- Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - O. Antipova
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - Z. Liu
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - S. Stoupin
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
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Galyamin SN, Tyukhtin AV, Antipov S, Baturin SS. Terahertz radiation from an ultra-relativistic charge exiting the open end of a waveguide with a dielectric layer. Opt Express 2014; 22:8902-8907. [PMID: 24787779 DOI: 10.1364/oe.22.008902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We analyze radiation produced by an ultrarelativistic charge as it exits the open end of a cylindrical waveguide with a dielectric lining. The end of the waveguide can be either orthogonal to the structure axis or skewed. To obtain terahertz radiation from waveguides with centimeter or millimeter radii, we consider high order TM(0m) modes driven by the beam. We obtain an integral representation which describes the radiation produced by a single waveguide mode in the Fraunhofer zone. We perform a series of numerical calculations for structures which look promising for generation of THz radiation. It is shown that for a mode with large mode number, the aperture of the vacuum channel gives the main contribution to the field if the skew angle of the waveguide aperture is not too small. Simple expressions for the angle of the main pattern lobe maximum are obtained.
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Antipov S, Baturin S, Jing C, Fedurin M, Kanareykin A, Swinson C, Schoessow P, Gai W, Zholents A. Experimental demonstration of energy-chirp compensation by a tunable dielectric-based structure. Phys Rev Lett 2014; 112:114801. [PMID: 24702378 DOI: 10.1103/physrevlett.112.114801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Indexed: 06/03/2023]
Abstract
A tunable energy-chirp compensator was used to remove a correlated energy chirp from the 60-MeV beam at the Brookhaven National Laboratory Accelerator Test Facility. The compensator operates through the interaction of the wakefield of the electron bunch with itself and consists of a planar structure comprised of two alumina bars with copper-plated backs separated by an adjustable beam aperture. By changing the gap size, the correlated energy chirp of the electron bunch was completely removed. Calculations show that this device, properly scaled to account for the electron bunch charge and length, can be used to remove residual correlated energy spread at the end of the linacs used for free-electron lasers. The experimental results are shown to be in good agreement with numerical simulations. Application of this technique can significantly simplify linac design and improve free-electron lasers performance.
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Affiliation(s)
- S Antipov
- Euclid Techlabs LLC, Solon, Ohio 44139, USA and High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - S Baturin
- St. Petersburg Electrotechnical University LETI, St. Petersburg 197376, Russia
| | - C Jing
- Euclid Techlabs LLC, Solon, Ohio 44139, USA and High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - M Fedurin
- Accelerator Test Facility, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Kanareykin
- Euclid Techlabs LLC, Solon, Ohio 44139, USA and St. Petersburg Electrotechnical University LETI, St. Petersburg 197376, Russia
| | - C Swinson
- Accelerator Test Facility, Brookhaven National Laboratory, Upton, New York 11973, USA
| | | | - W Gai
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - A Zholents
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
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Antipov S, Babzien M, Jing C, Fedurin M, Gai W, Kanareykin A, Kusche K, Yakimenko V, Zholents A. Subpicosecond bunch train production for a tunable mJ level THz source. Phys Rev Lett 2013; 111:134802. [PMID: 24116784 DOI: 10.1103/physrevlett.111.134802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Indexed: 06/02/2023]
Abstract
A strong energy modulation in an electron bunch passing through a dielectric-lined waveguide was recently demonstrated in Antipov et al., Phys. Rev. Lett. 108, 144801 (2012). In this Letter, we demonstrate a successful conversion of this energy modulation into a beam density modulation, and the formation of a series of microbunches with a subpicosecond periodicity by means of magnetic optics (chicane). A strong coherent transition radiation signal produced by the microbunches is obtained and the tunability of its carrier frequency in the 0.68-0.9 THz range by regulating the energy chirp in the incoming electron bunch is demonstrated using infrared interferometry. A tabletop, compact, tunable, and narrowband source of intense THz radiation based on this technology is proposed.
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Affiliation(s)
- S Antipov
- Euclid Techlabs LLC, Solon, Ohio 44139, USA and High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
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Antipov S, Jing C, Fedurin M, Gai W, Kanareykin A, Kusche K, Schoessow P, Yakimenko V, Zholents A. Experimental observation of energy modulation in electron beams passing through terahertz dielectric wakefield structures. Phys Rev Lett 2012; 108:144801. [PMID: 22540797 DOI: 10.1103/physrevlett.108.144801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Indexed: 05/31/2023]
Abstract
We report the observation of a strong wakefield induced energy modulation in an energy-chirped electron bunch passing through a dielectric-lined waveguide. This modulation can be effectively converted into a spatial modulation forming microbunches with a periodicity of 0.5-1 ps and, hence, capable of driving coherent terahertz radiation. The experimental results agree well with theoretical predictions.
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Affiliation(s)
- S Antipov
- Euclid Techlabs LLC, Solon, Ohio 44139, USA
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Jing C, Kanareykin A, Power JG, Conde M, Liu W, Antipov S, Schoessow P, Gai W. Experimental demonstration of wakefield acceleration in a tunable dielectric loaded accelerating structure. Phys Rev Lett 2011; 106:164802. [PMID: 21599371 DOI: 10.1103/physrevlett.106.164802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Indexed: 05/30/2023]
Abstract
We report on a collinear wakefield experiment using the first tunable dielectric loaded accelerating structure. By introducing an extra layer of nonlinear ferroelectric, which has a dielectric constant sensitive to temperature and dc bias, the frequency of a dielectric loaded accelerating structure can be tuned. During the experiment, the energy of a witness bunch at a fixed delay with respect to the drive beam was measured while the temperature of the structure was scanned over a 50 °C range. The energy change corresponded to a change of more than half of the nominal structure wavelength.
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Affiliation(s)
- C Jing
- Euclid Techlabs, LLC, 5900 Harper Road, Solon, Ohio 44139, USA
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Schepetkin I, Cherdyntseva N, Afanasjev S, Antipov S, Zyryanov B. The luminol-amplified chemiluminescence of neutrophils and monocytes in patients with gastric cancer after intraoperative radiotherapy using radiosensitizer sanazole. Cancer Biother Radiopharm 1999; 14:397-402. [PMID: 10850324 DOI: 10.1089/cbr.1999.14.397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The effect of electron-beam intraoperative radiotherapy (IORT) with radiosensitizer sanazole (drug AK-2123) on the functional activity of neutrophils and monocytes in patients with gastric cancer was studied with the use of luminol-amplified chemiluminescence. Sanazole was administered intravenously in a dose of 1.2 g/m2, 30 min before IORT. After resection of the tumor a single dose of 10 Gy was given to the field of regional lymph collectors and the bed of the removed tumor applying a small-size betatron MIB-6E. Cells were separated and chemiluminescence was estimated on the 1-st day before and on the 3-d day and 2-d week after IORT with sanazole. Insignificant effect on the zymosan- or phorbol-12 -myristate-13-acetate (PMA)-stimulated chemiluminescence was observed in this group, although there was found a considerable increase of chemiluminescence of neutrophils in response to zymosan and PMA in 5 from 8 patients, and chemiluminescence of monocytes--in 3 from 8 patients. Correlation between individual indices of zymosan- and PMA-stimulated chemiluminescence of neutrophils before IORT with sanazole was not high, r = 0.71, but it increased significantly to r = 0.91 on the 3-d day and to r = 0.96 on 2-d week after treatment. Correlation between individual indices of stimulated chemiluminescence of monocytes before IORT with sanazole was r = 0.90, and increased to r = 0.99 on the 3-d day and to r = 0.96 on the 2-d week after treatment. So, it is indicative of a correcting effect of the combined treatment including IORT with sanazole administration on the functional activity of neutrophils and monocytes, and the absence of functional disturbances of these cells.
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Affiliation(s)
- I Schepetkin
- Immunology Department, Tomsk Research Center, Russian Academy of Medical Sciences, Russia
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