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Статті в журналах з теми "M-cycle"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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1

Bryant, Darryn E., C. A. Rodger, and Erin R. Spicer. "Embeddings of m-cycle systems and incomplete m-cycle systems: m ⩽ 14." Discrete Mathematics 171, no. 1-3 (June 1997): 55–75. http://dx.doi.org/10.1016/s0012-365x(96)00072-6.

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2

Bryant, Darryn E., A. Khodkar, and Hung-Lin Fu. "(m,n)-cycle systems." Journal of Statistical Planning and Inference 74, no. 2 (November 1998): 365–70. http://dx.doi.org/10.1016/s0378-3758(98)00084-6.

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3

Hean, Sarah, Sarah Cowley, Angus Forbes, Peter Griffiths, and Jill Maben. "The M–C–M′ cycle and social capital." Social Science & Medicine 56, no. 5 (March 2003): 1061–72. http://dx.doi.org/10.1016/s0277-9536(02)00103-x.

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4

Liang, Zhihe, Hung-Lin Fu, and Wentao Wang. "On m-cycle holey systems." Journal of Discrete Mathematical Sciences and Cryptography 20, no. 8 (November 17, 2017): 1637–49. http://dx.doi.org/10.1080/09720529.2016.1160511.

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5

Lindner, C. C., and C. A. Rodger. "2-perfect m-cycle systems." Discrete Mathematics 104, no. 1 (June 1992): 83–90. http://dx.doi.org/10.1016/0012-365x(92)90626-q.

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6

Brain, James L. ": The Human Cycle . Colin M. Turnbull." American Anthropologist 87, no. 4 (December 1985): 933–34. http://dx.doi.org/10.1525/aa.1985.87.4.02a00310.

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7

Adams, Peter, and Darryn E. Bryant. "i-perfectm-cycle systems,m ≤ 19." Aequationes Mathematicae 53, no. 1-2 (February 1997): 275–94. http://dx.doi.org/10.1007/bf02215976.

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8

Adams, Peter, and Darryn E. Bryant. "i-perfectm-cycle systems,m ≤ 19." Aequationes Mathematicae 52, no. 1 (February 1996): 319. http://dx.doi.org/10.1007/bf01818349.

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9

MATSUI, Kohei, and Takahiko MIYAZAKI. "Performance improvement of inverted Brayton cycles by application of M-cycle." Proceedings of the National Symposium on Power and Energy Systems 2019.24 (2019): E131. http://dx.doi.org/10.1299/jsmepes.2019.24.e131.

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10

Wu, Shung-Liang, and Hung-Lin Fu. "A Note on Cyclic m-cycle Systems of Kr(m)." Graphs and Combinatorics 22, no. 3 (November 2006): 427–32. http://dx.doi.org/10.1007/s00373-006-0658-z.

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11

M. Ferreira, Manuel Alberto, and Marina Andrade. "M|M|∞ busy period and busy cycle distribution functions bounds." International Journal of Academic Research 5, no. 1 (December 2, 2012): 22–25. http://dx.doi.org/10.7813/2075-4124.2013/5-1/a.4.

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12

Davy, Clare, and John Doorbar. "G2/M cell cycle arrest in the life cycle of viruses." Virology 368, no. 2 (November 2007): 219–26. http://dx.doi.org/10.1016/j.virol.2007.05.043.

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13

GYŐRI, ERVIN, and NATHAN LEMONS. "Hypergraphs with No Cycle of a Given Length." Combinatorics, Probability and Computing 21, no. 1-2 (February 2, 2012): 193–201. http://dx.doi.org/10.1017/s0963548311000691.

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Анотація:

Recently, the authors gave upper bounds for the size of 3-uniform hypergraphs avoiding a given odd cycle using the definition of a cycle due to Berge. In the present paper we extend this bound to m-uniform hypergraphs (for all m ≥ 3), as well as m-uniform hypergraphs avoiding a cycle of length 2k. Finally we consider non-uniform hypergraphs avoiding cycles of length 2k or 2k + 1. In both cases we can bound |h| by O(n1+1/k) under the assumption that all h ∈ ε() satisfy |h| ≥ 4k2.

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14

Chua, Gordon, and Paul G. Young. "Cell Cycle Control.Christopher Hutchison , David M. Glover." Quarterly Review of Biology 72, no. 3 (September 1997): 325. http://dx.doi.org/10.1086/419882.

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15

DAI, Wei, Yoichi MATSUBARA, Hisayasu KOBAYASHI, and Shuliang ZHOU. "D03 V-M Cycle Pulse Tube Refrigerator." Proceedings of the Symposium on Stirlling Cycle 2001.5 (2001): 121–22. http://dx.doi.org/10.1299/jsmessc.2001.5.121.

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16

Billington, Elizabeth J. "The intersection problem for m-cycle systems." Journal of Combinatorial Designs 1, no. 6 (1993): 435–52. http://dx.doi.org/10.1002/jcd.3180010605.

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17

Goldberg, Michael L. "Cell Cycle: Abrogating Interphase/M Phase Bistability." Current Biology 28, no. 23 (December 2018): R1342—R1345. http://dx.doi.org/10.1016/j.cub.2018.10.011.

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18

Niaz, Hassan, Muhammad Sultan, Zahid Mahmood Khan, Muhammad Hamid Mahmood, and Yasir Niaz. "Thermodynamic investigation of M-cycle assisted open-cycle desiccant air conditioning systems." IOP Conference Series: Materials Science and Engineering 414 (September 13, 2018): 012002. http://dx.doi.org/10.1088/1757-899x/414/1/012002.

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19

Lindner, C. C., and C. A. Rodger. "A partial m=(2k+1)-cycle system of order n can be embedded in an m-cycle system of order (2n+1)m." Discrete Mathematics 117, no. 1-3 (July 1993): 151–59. http://dx.doi.org/10.1016/0012-365x(93)90331-m.

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20

Rosiñol, Laura, Albert Oriol, Ana Isabel Teruel, Dolores Hernández, M. Jesús Blanchard, Javier De La Rubia, Miquel Granell, et al. "Kinetics of Response to Bortezomib/Thalidomide/Dexamethasone (VTD) in Multiple Myeloma: Implications for the Choice and Design of Pretransplantation Induction Regimens." Blood 124, no. 21 (December 6, 2014): 2108. http://dx.doi.org/10.1182/blood.v124.21.2108.2108.

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Анотація:

Abstract Background: Autologous stem-cell transplantation (ASCT) is the standard of care for younger patients with multiple myeloma (MM). The degree of tumor reduction after ASCT is the crucial factor associated with a prolonged PFS and OS, being the M-protein decrease at the time of transplant the most important predictor of residual disease after ASCT. While there is an agreement that bortezomib and dexamethasone associated to a third drug is the induction of choice, which should be the third drug (thalidomide, lenalidomide, doxorubicin or cyclophosphamide) and the optimal number of cycles remain unknown. The results of phase 3 PETHEMA study GEM05menos65 showing a CR rate of 35% increasing overtime during the 6 induction cycles of VTD (Rosiñol et al, Blood 2012) prompted us to study the kinetics of response to VTD and TD in this study and in similar historic data with the VD regimen in phase 2 PETHEMA VELCA/DEXA trial (Rosiñol et al, JCO 2007). Objective: To study the kinetics of response by cycle during the 6 cycles of induction with VTD, TD and VD using a random effects model methodology. Patients and Methods: In GEM05menos65 study patients were randomized to receive 6 induction cycles of either VTD or TD followed by ASCT. One hundred and thirteen patients were treated with TD (thalidomide 200 mg daily; dexamethasone 40 mg on days 1-4 and 9-12) and 122 with VTD (TD at identical doses plus bortezomib 1.3 mg/m2 on days 1, 4, 8 and 11) (Rosiñol et al, Blood 2012) and had complete data set for this analysis. In VELCA/DEXA study 40 patients received 6 induction cycles of bortezomib and dexamethasone on an alternating basis (Rosiñol et al, JCO 2007). Linear random effects models were employed to analyze the tumor response kinetics using the absolute decrease value of the serum M-protein after each cycle. Because the nonlinearity in the change of the M-protein overtime, a piecewise linear model was used to estimate mean changes in M-protein in each of the 6 cycles. Results: Three different comparisons were made: 1) the decrease of the M-protein by cycle within each treatment group, 2) the total M-protein decrease at the end of induction with VTD compared to TD and VD and 3) the decrease by cycle comparing VTD vs TD and VTD vs VD. Concerning the M-protein decrease by cycle within each arm, statistically significant decreases versus the previous cycle were observed in the first 5 cycles of VTD, the first 3 of TD and the first 4 of VD. The serum M-protein reduction at the end of the 6 induction cycles was significantly higher with VTD when compared with TD (p<0.0001) and VD (p<0.0001). Finally, when comparing the serum M-protein decrease between VTD and TD by cycle, the M-protein reduction was significantly higher with VTD in the first 5 cycles and the same analysis between VTD and VD showed that the serum M-protein decrease was significantly higher with VTD in the first 3 cycles (Tables 1 and 2). Conclusions: In the cycle by cycle analysis VTD continued to improve M-protein reduction significantly in the first 5 cycles. When compared with TD and VD, the M-protein decrease at the end of induction was significantly higher with VTD. Furthermore, in the cycle by cycle comparison there was a significantly higher efficacy of VTD over TD in the first 5 cycles and over VD in the first 3 cycles. Our results suggest a synergistic rather than only an additive effect between thalidomide and bortezomib supporting the use of an IMiD as the drug of choice to be combined with bortezomib and dexamethasone. Finally, our study supports an induction period beyond 3 or 4 cycles when using a bortezomib/IMiD regimen in order to maximize the induction efficacy. Table 1. Comparison between VTD versus TD by cycles overtime. Serum M-protein (g/dl) Change (VTH-TH) Estimate SE 95% CI P-value C1 – Baseline -3.0747 0.3461 (-3.7539, -2.3954) <.0001 C2 – C1 -1.1343 0.1294 (-1.3883, -0.8802) <.0001 C3 – C2 -0.4474 0.09586 (-0.6356, -0.2593) <.0001 C4 – C3 -0.2140 0.08224 (-0.3753, -0.05257) 0.0094 C5 – C4 -0.1339 0.07550 (-0.2821, -0.01428) 0.0765 C6 – C5 0.01862 0.05395 (-0.08725, 0.1245) 0.7300 Table 2. Comparison between VTD versus VD by cycles overtime. Serum M-protein (g/dl) Change (VTH-VD) Estimate SE 95% CI P-value C1 – Baseline -3.1553 0.2243 (-3.5957, -2.7150) <.0001 C2 – C1 -1.3748 0.2279 (-1.8223, -0.9272) <.0001 C3 – C2 -0.4266 0.2354 (-0.8887, 0.03552) 0.0703 C4 – C3 -0.05473 0.2439 (-0.5337, 0.4242) 0.8225 C5 – C4 -0.02217 0.2530 (-0.5189, 0.4745) 0.9302 C6 – C5 0.06493 0.2908 (-0.5060, 0.6358) 0.8234 Disclosures Rosiñol: Janssen: Honoraria; Celgene: Honoraria. Oriol:Janssen: Honoraria; Celgene: Honoraria. De La Rubia:Janssen: Honoraria; Celgene: Honoraria. Gutierrez:Janssen: Honoraria; Celgene: Honoraria. Mateos:Janssen: Honoraria; Celgene: Honoraria. Martinez-Lopez:Janssen: Honoraria; Celgene: Honoraria. Alegre:Janssen: Honoraria; Celgene: Honoraria. Feng:Janssen: Employment. van de Velde:Janssen: Employment. Lahuerta:Janssen: Honoraria; Celgene: Honoraria. San Miguel:Janssen: Honoraria; Celgene: Honoraria. Blade:Janssen: Honoraria; Celgene: Honoraria.

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21

Swita, Baki, Ulfasari Rafflesia, Nova Henni Ms, Dolly Stio Adji, and Mudin Simanihuruk. "On Edge Magic Total Labeling of (7, 3)-Cycle Books." International Journal of Mathematics and Mathematical Sciences 2019 (January 2, 2019): 1–8. http://dx.doi.org/10.1155/2019/1801925.

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A graph G is called (a, b)-cycle books B[(Ca, m), (Cb, n), Pt] if G consists of m cycles Ca and n cycles Cb with a common path Pt. In this article we show that the (7, 3)-cycle books B[(C7, 1), (C3, n), P2] admits edge-magic total labeling. In addition we prove that (a, 3)-cycle books B[(Ca, 1), (C3, n), P2] admits super edge-magic total labeling for a = 7 and extends the values of a to 4x − 1 for any positive integer x. Moreover we prove that the (7, 3)-cycle books B[(C7, 2), (C3, n), P2] admits super edge-magic total labeling.

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22

Simanihuruk, Mudin, Tri Atmojo Kusmayadi, Baki Swita, Minsi Romala, and Friska Damanik. "A Conjecture on Super Edge-Magic Total Labeling of 4-Cycle Books." International Journal of Mathematics and Mathematical Sciences 2021 (August 12, 2021): 1–8. http://dx.doi.org/10.1155/2021/8483926.

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A graph G is called cycle books B 4 , m , 2 if G consists of m cycles C 4 with a common path P 2 . Figueroa-Centeno, Ichishima, and Muntaner-Batle conjecture that the graph B 4 , m , 2 is super edge-magic total if and only if m is even or m ≡ 5 mod 8 . In this article, we prove this conjecture for m ≥ 36 and m = 0 mod (2).

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23

Grover, Wayne, and Aden Grue. "Self-fault isolation in transparent p-cycle networks: p-cycles as their own m-cycles." IEEE Communications Letters 11, no. 12 (December 2007): 1004–6. http://dx.doi.org/10.1109/lcomm.2007.071016.

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24

Sangeetha, R., and A. Muthusamy. "Hamilton cycle rich 2-factorization of complete bipartite graphs." Discrete Mathematics, Algorithms and Applications 07, no. 03 (September 2015): 1550026. http://dx.doi.org/10.1142/s1793830915500263.

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A 2-factorization {F1, F2,…,Fd} of a 2d-regular graph G such that each [Formula: see text] and the remaining Fi's are all Hamilton cycles is called Hamilton cycle rich 2-factorization of G, where Gi's are the given non-isomorphic 2-factors of G. In this paper, we prove that there exists a 2-factorization {F1, F2,…,Fn} of K2n,2n such that F1 ≅ G1, F2 ≅ G2 and the remaining Fi's are Hamilton cycles of K2n,2n, where G1 and G2 are the given two non-isomorphic 2-factors of K2n,2n. In fact our result together with the earlier results settles the existence of Hamilton cycle rich 2-factorizations of K(m, p), the complete p-partite graph with m vertices in each partite set, except when (m, p) = (2n + 1, 2), in the case that two of the 2-factors are isomorphic to the given two non-isomorphic 2-factors and the remaining are Hamilton cycles.

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25

Houyel, Thierry. "Le cycle 3 sous le m�me toit." Administration & �ducation N�158, no. 2 (2018): 111. http://dx.doi.org/10.3917/admed.158.0111.

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26

Owen, Sian, and Alfred Yawson. "Corporate life cycle and M&A activity." Journal of Banking & Finance 34, no. 2 (February 2010): 427–40. http://dx.doi.org/10.1016/j.jbankfin.2009.08.003.

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27

ZHAO, Richard Y., and Robert T. ELDER. "Viral infections and cell cycle G2/M regulation." Cell Research 15, no. 3 (March 2005): 143–49. http://dx.doi.org/10.1038/sj.cr.7290279.

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28

Ferreira, M. A. M. "The M|D|_\infty queue busy cycle distribution." International Mathematical Forum 9 (2014): 81–87. http://dx.doi.org/10.12988/imf.2014.311249.

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29

Kahn, Bruno. "Relatively unramified elements in cycle modules." Journal of K-theory 7, no. 3 (April 11, 2011): 409–27. http://dx.doi.org/10.1017/is011003002jkt147.

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AbstractIn a recent paper, Merkurjev showed that for a smooth proper variety X over a field k, the functor M* ↦ A0(X, M0) from cycle modules to abelian groups is corepresented by a cycle module constructed on the Chow group of 0-cycles of X. We show that if “proper” is relaxed, the result still holds by replacing the Chow group of 0-cycles by the 0-th Suslin homology group of X.

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30

Hao, Jiang Nan, Chao Gao, and Yin Zhe Li. "Flow Control over a Circular-Cone-Cylinder by Unsteady Plasma Actuations." Advanced Materials Research 160-162 (November 2010): 933–38. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.933.

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An experimental study of plasma duty-cycled actuation over slender forebodies is performed on a 20° circular-cone-cylinder model using a pair of Single Dielectric Barrier Discharge (SDBD) plasma actuators near the cone apex combined with a duty-cycle technique. The tests are carried out in a low-turbulence 3.0 m ×1.6 m low-speed wind tunnel at an angle of attack of 45°. The Reynolds number based on the cone base diameter is 50, 000. The frequency of the duty cycle is 10 Hz. The mechanisms of the unsteady excitations over various duty cycles of frequency 10 Hz are studied using ten Kulite pressure transducers mounted around a cross section of the cone forebody at angle of attack of 45°.The circumferential pressure distributions over a station on the cone forebody is measured by unsteady pressure tappings, Phase-locked averaged pressures are studied and compared with ensemble-averaged pressures.

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31

Grant, Gavin D., Lionel Brooks, Xiaoyang Zhang, J. Matthew Mahoney, Viktor Martyanov, Tammara A. Wood, Gavin Sherlock, Chao Cheng, and Michael L. Whitfield. "Identification of cell cycle–regulated genes periodically expressed in U2OS cells and their regulation by FOXM1 and E2F transcription factors." Molecular Biology of the Cell 24, no. 23 (December 2013): 3634–50. http://dx.doi.org/10.1091/mbc.e13-05-0264.

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Анотація:

We identify the cell cycle–regulated mRNA transcripts genome-wide in the osteosarcoma-derived U2OS cell line. This results in 2140 transcripts mapping to 1871 unique cell cycle–regulated genes that show periodic oscillations across multiple synchronous cell cycles. We identify genomic loci bound by the G2/M transcription factor FOXM1 by chromatin immunoprecipitation followed by high-throughput sequencing (ChIP-seq) and associate these with cell cycle–regulated genes. FOXM1 is bound to cell cycle–regulated genes with peak expression in both S phase and G2/M phases. We show that ChIP-seq genomic loci are responsive to FOXM1 using a real-time luciferase assay in live cells, showing that FOXM1 strongly activates promoters of G2/M phase genes and weakly activates those induced in S phase. Analysis of ChIP-seq data from a panel of cell cycle transcription factors (E2F1, E2F4, E2F6, and GABPA) from the Encyclopedia of DNA Elements and ChIP-seq data for the DREAM complex finds that a set of core cell cycle genes regulated in both U2OS and HeLa cells are bound by multiple cell cycle transcription factors. These data identify the cell cycle–regulated genes in a second cancer-derived cell line and provide a comprehensive picture of the transcriptional regulatory systems controlling periodic gene expression in the human cell division cycle.

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32

Chitra, Venkatapathy, Kalimuthu Ananthi, and S. Vasantha. "Photoelectrochemical Behaviour of Copper Indium Selenide Thin Films." Advanced Materials Research 678 (March 2013): 343–48. http://dx.doi.org/10.4028/www.scientific.net/amr.678.343.

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Copper Indium Selenide (CIS) thin films were pulse electrodeposited at room temperature and at different duty cycles in the range of 6 – 50 %. Deposition current density was kept constant at 5 ma cm-2 in the present work. The total deposition time was 60 min. The precursors used were AR grade 0.3 M of each CuCl2 and InCl3, along with 0.2 M of SeO2. Thickness of the films estimated by Mitutoyo surface profilometer varied in the range of 0.8 to 1.2 μm with increase of duty cycle. XRD patterns of CIS films deposited at different duty cycles exhibit the chalcopyrite structure. Composition of the films indicated Cu/In ratio is greater than 1. Optical absorption studies indicated a direct energy band gap of 0.95 eV. Surface morphology of the films indicated that the grain size increased from 15 nm to 40 nm as the duty cycle increased. It is observed that as the duty cycle increases, the resistvity increases from 1.0 ohm cm to 10 ohm cm. The films were used as photoelectrodes in 0.5 M polysulphide redox electrolyte (0.5 M each Na2S, NaOH, S). At 60 mW cm-2, an open circuit voltage of 0.465 V and short circuit current density of 3.87 mA cm-2 were observed for the films deposited at 50 % duty cycle.

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33

Kang, Zhi Hu, Geng Sheng Zheng, Qiang Gao, and Ao Cheng Huang. "M/M/1/n-Based MAC Protocol in Wireless Sensor Networks with Adaptive Duty-Cycle." Advanced Materials Research 926-930 (May 2014): 2494–98. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.2494.

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Анотація:

Energy conservation is the primary goal for MAC protocol design in Wireless sensor networks. Based on the analysis of the existing low-duty-cycle S-MAC algorithms and the structural features of hierarchy WSN , an adaptive duty-cycle MAC protocol is proposed,which is integrated M/M/1/n queuing system. The new protocol can predict data throughput of next period based on the node’s queue model and then adjust the duty-cycle to achieve energy conservation. Analysis and simulation results show that, compare with S-MAC,the MAC protocol based on M/M/1/n saves about 48% energy, reduces latency by 21% and improves throughput by 33% in a cross topology network,which effectively prolongs the network lifetime.

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34

Clopper, Lawrence M. "The Chester Mystery Cycle. R. M. Lumiansky , David Mills." Speculum 63, no. 2 (April 1988): 433–34. http://dx.doi.org/10.2307/2853271.

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35

Zeigler, Bernard P. "Society's Uptake of M&S: An Autocatalytic Cycle." SIMULATION 76, no. 5 (May 2001): 278. http://dx.doi.org/10.1177/003754970107600505.

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36

Adams, Peter, Elizabeth J. Billington, Darryn E. Bryant та A. Khodkar. "The μ-way intersection problem for m-cycle systems". Discrete Mathematics 231, № 1-3 (березень 2001): 27–56. http://dx.doi.org/10.1016/s0012-365x(00)00303-4.

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37

Otaki, Masayuki, Masahiko Hatano, Koichi Kobayashi, Takeshi Ogasawara, Takayuki Kuriyama, and Takeshi Tokuhisa. "Cell cycle-dependent regulation of TIAP/m-survivin expression." Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression 1493, no. 1-2 (September 2000): 188–94. http://dx.doi.org/10.1016/s0167-4781(00)00142-1.

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38

Wang, X. W., Q. Zhan, J. D. Coursen, M. A. Khan, H. U. Kontny, L. Yu, M. C. Hollander, P. M. O'Connor, A. J. Fornace, and C. C. Harris. "GADD45 induction of a G2/M cell cycle checkpoint." Proceedings of the National Academy of Sciences 96, no. 7 (March 30, 1999): 3706–11. http://dx.doi.org/10.1073/pnas.96.7.3706.

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39

Bryant, Darryn E., and C. A. Rodger. "On the doyen-wilson theorem for m-cycle systems." Journal of Combinatorial Designs 2, no. 4 (1994): 253–71. http://dx.doi.org/10.1002/jcd.3180020405.

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40

Lindner, C. C., and C. A. Rodger. "On equationally defining m-perfect 2m + 1 cycle systems." Journal of Combinatorial Designs 2, no. 5 (1994): 301–9. http://dx.doi.org/10.1002/jcd.3180020504.

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41

Bryant, Darryn E. "2m-Cycle Systems of K 2m+1\C m." Graphs and Combinatorics 13, no. 3 (September 1997): 227–29. http://dx.doi.org/10.1007/bf03352999.

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42

Lindner, C. C., and C. A. Rodger. "Small embeddings of partial directed cycle systems." Bulletin of the Australian Mathematical Society 46, no. 2 (October 1992): 213–24. http://dx.doi.org/10.1017/s0004972700011850.

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Анотація:

In this paper, a generalisation of the Andersen, Hilton, Rodger Theorem for embedding partial idempotent latin squares is proved. This result is then used to prove that a partial directed m-cycle system of order n can be embedded in a directed m-cycle system of order (2n + 1)m if m is odd, of order 2nm if m ≥ 8 is even, 12n + 1 if m = 6 and approximately 2n + √2n if m = 4.

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43

Nelson, K., D. Hedgecock, and W. Borgeson. "Effects of Reproduction upon Molting and Growth in Female American Lobsters (Homarus americanus)." Canadian Journal of Fisheries and Aquatic Sciences 45, no. 5 (May 1, 1988): 805–21. http://dx.doi.org/10.1139/f88-098.

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American lobster (Homarus americanus) females characteristically extrude eggs (E) in the summer of the year following a summer or autumn molt (M), but young females may extrude in the same year. The subsequent M is delayed until after hatching, resulting in the former case in a 2-yr reproductive molt cycle, measuring from M to M. Adult female lobsters were exposed to periods of short days (8 h light: 16 h dark) followed by long day onset (L) (16 h light: 8 h dark) at different times with respect to M, or as controls were kept under continuous long-day conditions. In this way were generated molt cycles with delayed or undelayed extrusions, as well as ones with incomplete vitellogeneses resulting from too-long delayed L, and molt cycles in which vitrellogenesis did not begin (control group). Delayed L results in delayed E and M, as measured either in days or in day-degrees above 6 °C. An incompleted vitellogenesis following a too-long delayed L changes neither the duration of the molt cycle nor its characteristic positive correlation with female size; the duration of molt cycles containing either delayed or undelayed E appears in contrast to become independent of size. Intermolt intervals following prior E are shorter than those following anovulatory cycles. Retention of the clutch to hatching is associated with an additional increment to the intermolt interval. The results suggest that following E, a "reproductive" program replaces the "somatic" program of control of molt cycle duration. Incompleted vitellogeneses are associated with significantly smaller molt increments and growth rates than in the evidently avitellogenic continuous long-day control group, even though intermolt duration and its relation to size remain the same. Growth rates of molt cycles containing incompleted vitellogeneses are significantly higher than ones containing E only if that is delayed. Differential dependence of molt cycle duration and growth rate measures upon size and temperature indicate that molting and growth are distinct and rather independently controlled processes in adult lobsters, however tightly linked they may be in juveniles. Implications for molting and reproduction in the natural environment are discussed.

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44

Heller Murray, Elizabeth S., Roxanne K. Segina, Geralyn Harvey Woodnorth, and Cara E. Stepp. "Relative Fundamental Frequency in Children With and Without Vocal Fold Nodules." Journal of Speech, Language, and Hearing Research 63, no. 2 (February 26, 2020): 361–71. http://dx.doi.org/10.1044/2019_jslhr-19-00058.

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Purpose Relative fundamental frequency (RFF) is an acoustic measure that is sensitive to functional voice differences in adults. The aim of the current study was to evaluate RFF in children, as there are known structural and functional differences between the pediatric and adult vocal mechanisms. Method RFF was analyzed in 28 children with vocal fold nodules (CwVN, M = 9.0 years) and 28 children with typical voices (CwTV, M = 8.9 years). RFF is the instantaneous fundamental frequency ( f 0 ) of the 10 vocalic cycles during devoicing (vocal offset) and 10 vocalic cycles during the revoicing (vocal onset) of the vowels that surround a voiceless consonant. Each cycle's f 0 was normalized to a steady-state portion of the vowel. RFF values for the cycles closest to the voiceless consonant, that is, Offset Cycle 10 and Onset Cycle 1, were examined. Results Average RFF values for Offset Cycle 10 and Onset Cycle 1 did not differ between CwVN and CwTV; however, within-subject variability of Offset Cycle 10 was decreased in CwVN. Across both groups, male children had lower Offset Cycle 10 RFF values as compared to female children. Additionally, Onset Cycle 1 values were decreased in younger children as compared to those of older children. Conclusions Unlike previous work with adults, CwVN did not have significantly different RFF values than CwTV. Younger children had lower RFF values for Onset Cycle 1 than older children, suggesting that vocal onset f 0 may provide information on the maturity of the laryngeal motor system.

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45

Huang, Jianping, Altug S. Poyraz, Kenneth J. Takeuchi, Esther S. Takeuchi, and Amy C. Marschilok. "MxMn8O16 (M = Ag or K) as promising cathode materials for secondary Mg based batteries: the role of the cation M." Chemical Communications 52, no. 21 (2016): 4088–91. http://dx.doi.org/10.1039/c6cc00025h.

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2 × 2 tunneled M_xMn₈O₁₆ (M = Ag or K) materials delivered high initial capacities in Mg based electrolyte, and K_xMn₈O₁₆ showed high cycle stability with a reversible capacity of >170 mA h g⁻¹ after 20 cycles.

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46

Khalatov, A. А., T. V. Donyk, and O. S. Stupak. "THERMODYNAMIC ANALYSIS OF THE REVERSE BRAYTON CYCLE WITH DISCHARGED HEAT UTILIZATION ACCORDING TO M-CYCLE." Scientific notes of Taurida National V.I. Vernadsky University. Series: Technical Sciences 2, no. 1 (2020): 55–61. http://dx.doi.org/10.32838/2663-5941/2020.1-2/10.

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47

Savvi, Suzana, Digby F. Warner, Bavesh D. Kana, John D. McKinney, Valerie Mizrahi, and Stephanie S. Dawes. "Functional Characterization of a Vitamin B12-Dependent Methylmalonyl Pathway in Mycobacterium tuberculosis: Implications for Propionate Metabolism during Growth on Fatty Acids." Journal of Bacteriology 190, no. 11 (March 28, 2008): 3886–95. http://dx.doi.org/10.1128/jb.01767-07.

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ABSTRACT Mycobacterium tuberculosis is predicted to subsist on alternative carbon sources during persistence within the human host. Catabolism of odd- and branched-chain fatty acids, branched-chain amino acids, and cholesterol generates propionyl-coenzyme A (CoA) as a terminal, three-carbon (C3) product. Propionate constitutes a key precursor in lipid biosynthesis but is toxic if accumulated, potentially implicating its metabolism in M. tuberculosis pathogenesis. In addition to the well-characterized methylcitrate cycle, the M. tuberculosis genome contains a complete methylmalonyl pathway, including a mutAB-encoded methylmalonyl-CoA mutase (MCM) that requires a vitamin B12-derived cofactor for activity. Here, we demonstrate the ability of M. tuberculosis to utilize propionate as the sole carbon source in the absence of a functional methylcitrate cycle, provided that vitamin B12 is supplied exogenously. We show that this ability is dependent on mutAB and, furthermore, that an active methylmalonyl pathway allows the bypass of the glyoxylate cycle during growth on propionate in vitro. Importantly, although the glyoxylate and methylcitrate cycles supported robust growth of M. tuberculosis on the C17 fatty acid heptadecanoate, growth on valerate (C5) was significantly enhanced through vitamin B12 supplementation. Moreover, both wild-type and methylcitrate cycle mutant strains grew on B12-supplemented valerate in the presence of 3-nitropropionate, an inhibitor of the glyoxylate cycle enzyme isocitrate lyase, indicating an anaplerotic role for the methylmalonyl pathway. The demonstrated functionality of MCM reinforces the potential relevance of vitamin B12 to mycobacterial pathogenesis and suggests that vitamin B12 availability in vivo might resolve the paradoxical dispensability of the methylcitrate cycle for the growth and persistence of M. tuberculosis in mice.

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48

Scott, B. J., M. A. Ewing, R. Williams, A. W. Humphries, and N. E. Coombes. "Tolerance of aluminium toxicity in annual Medicago species and lucerne." Australian Journal of Experimental Agriculture 48, no. 4 (2008): 499. http://dx.doi.org/10.1071/ea07137.

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A rapid (7 day) solution-based screening test was developed using 15 annual Medicago cultivars and one M. sativa. Based on a relative root regrowth after exposures to aluminium (Al), Zodiac (M. murex), Orion (M. sphaerocarpos) and the M. polymorha cultivars Santiago, Cavalier and Serena had the greatest Al tolerance. Herald (M. littoralis) and Rivoli (M. tornata) were most sensitive. Ranking for Al tolerance from the solution culture correlated well (r = 0.80) with ranking for tolerance of the 16 genotypes grown in an acidic soil (unlimed pHCa 4.1). We screened 17 Australian populations of lucerne (M. sativa) using a 24 h ‘pulse’ of 75 µmol/L Al, and a three day ‘recovery’ of 10 µmol/L Al. We identified and recovered plants with a root regrowth of ≥5 mm in all 17 populations with selection intensities of 2 to 4%. Four of these selected populations (Aurora, UQL-1, A513 and TO2-011) were polycrossed within each population to produce four populations of seed from the cycle 1 selections. The length of root regrowth under Al stress was improved for all four populations of cycle 1 selection (P ≤ 0.001; from 2.6 mm for the original populations to 6.3 mm for the cycle 1 selections). In a subsequent experiment the cycle 2 selections from Aurora, UQL-1 and TO2-011 had significantly greater root regrowth than both the cycle 1 selections (P ≤ 0.001; 8.3 cf. 6.6 mm) and the unselected populations (3.0 mm). The selections from TO2-011 appeared to have greater improvement in the average length of root regrowth after 2 cycles of selection. Selected germplasm was more tolerant than GAAT in our evaluation. Based on estimation of realised heritability, it seemed likely that higher selection intensities would give more rapid improvements in tolerance. Our studies have not investigated the physiological basis of any tolerance of Al which we observed.

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49

Bai, Fang, Hongsheng Ding, Lige Tong, Liqing Pan, and Li Wang. "Microstructural Changes and Impact Toughness of Fill Pass in X80 Steel Weld Metal." Metals 9, no. 8 (August 16, 2019): 898. http://dx.doi.org/10.3390/met9080898.

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Multi-pass welding is used in high-pressure and thick-walled pipes in natural gas and oil pipelines. When a welding layer of a welded joint is subjected to different welding thermal cycles, its microstructure and properties change, thereby affecting the overall welding performance. In this study, the temperature and microstructural variations of the fill pass 2 (FP2) in the entire welding process were investigated by combining the thermal cycle with the cascade welding method. The original FP2 and FP2 after double thermal cycles had the worse deformation ability by tensile test. The toughness of FP2 improved after a single thermal cycle, decreased after double thermal cycles, and improved again after triple thermal cycles. The content of martensite–austenite (M–A) constituents and the average grain size of FP2 in the cascade samples were inversely proportional to FP2 toughness. Massive M–A constituents and their unique distribution at the inter-critical temperature were harmful to weld metal toughness. Controlling the size and fraction of M–A constituents can improve weld metal toughness.

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50

Diaconescu, Răzvan. "Permutation Groups Generated by γ-Cycles". Axioms 11, № 10 (2 жовтня 2022): 528. http://dx.doi.org/10.3390/axioms11100528.

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A γ-cycle is a cycle of the form (i+1,i+2,⋯,i+m) in the symmetric group Sn. We study the subgroups of Sn generated by several sets of γ-cycles. Our mathematical development is strongly supported by computational experiments and proofs based on do-it-yourself programming with the logic-based language Maude.

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