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Journal articles on the topic 'Extension de cycles'

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Published: 22 February 2025

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1

Reed, Richard. "Fashion Life Cycles and Extension Theory." European Journal of Marketing 21, no. 3 (1987): 52–62. http://dx.doi.org/10.1108/eum0000000004686.

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2

Coupechoux, Pierre. "Extension of universal cycles for globally identifying colorings of cycles." Discrete Mathematics 340, no. 7 (2017): 1456–66. http://dx.doi.org/10.1016/j.disc.2017.02.002.

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3

Boumasmoud, Réda, Ernest Hunter Brooks, and Dimitar P. Jetchev. "Vertical Distribution Relations for Special Cycles on Unitary Shimura Varieties." International Mathematics Research Notices 2020, no. 13 (2018): 3902–26. http://dx.doi.org/10.1093/imrn/rny119.

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Abstract We consider cycles on three-dimensional Shimura varieties attached to unitary groups, defined over extensions of a complex multiplication (CM) field $E$, which appear in the context of the conjectures of Gan et al. [6]. We establish a vertical distribution relation for these cycles over an anticyclotomic extension of $E$, complementing the horizontal distribution relation of [8], and use this to define a family of norm-compatible cycles over these fields, thus obtaining a universal norm construction similar to the Heegner $\Lambda $-module constructed from Heegner points.

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4

Katona, Gyula Y. "Extension of paths and cycles for hypergraphs." Electronic Notes in Discrete Mathematics 45 (January 2014): 3–7. http://dx.doi.org/10.1016/j.endm.2013.11.002.

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5

Gehrlein, William V., and Peter C. Fishburn. "Linear extension majority cycles on partial orders." Annals of Operations Research 23, no. 1 (1990): 311–22. http://dx.doi.org/10.1007/bf02204855.

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6

Bernhardt, Chris. "Time-symmetric cycles." International Journal of Mathematics and Mathematical Sciences 2003, no. 26 (2003): 1683–92. http://dx.doi.org/10.1155/s0161171203208097.

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The main result of this note is that given any two time-symmetric cycles, one can find a time-symmetric extension of one by the other. This means that given a time-symmetric cycle, both time-symmetric doubles and square roots can be found.

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7

COLACCHIO, GIORGIO, MARCO SPARRO, and CLAUDIO TEBALDI. "SEQUENCES OF CYCLES AND TRANSITIONS TO CHAOS IN A MODIFIED GOODWIN'S GROWTH CYCLE MODEL." International Journal of Bifurcation and Chaos 17, no. 06 (2007): 1911–32. http://dx.doi.org/10.1142/s0218127407018117.

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The model introduced by Goodwin [1967] in "A Growth Cycle" represents a milestone in the nonlinear modeling of economic dynamics. On the basis of a few simple assumptions, the Goodwin Model (GM) is formulated exactly as the well-known Lotka–Volterra system, in terms of the two variables "wage share" and "employment rate". A number of extensions have been proposed with the aim to make the model more robust, in particular, to obtain structural stability, lacking in GM original formulation. We propose a new extension that: (a) removes the limiting hypothesis of "Harrod-neutral" technical progress

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8

Ewacha, Kevin, Peter C. Fishburn, and W. V. Gehrlein. "Linear extension majority cycles in height-1 orders." Order 6, no. 4 (1990): 313–18. http://dx.doi.org/10.1007/bf00346127.

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9

Wang, Kailong, Yuxi Ling, Yanjun Zhang, et al. "Characterizing Cryptocurrency-themed Malicious Browser Extensions." Proceedings of the ACM on Measurement and Analysis of Computing Systems 6, no. 3 (2022): 1–31. http://dx.doi.org/10.1145/3570603.

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Due to the surging popularity of various cryptocurrencies in recent years, a large number of browser extensions have been developed as portals to access relevant services, such as cryptocurrency exchanges and wallets. This has stimulated a wild growth of cryptocurrency themed malicious extensions that cause heavy financial losses to the users and legitimate service providers. They have shown their capability of evading the stringent vetting processes of the extension stores, highlighting a lack of understanding of this emerging type of malware in our community. In this work, we conduct the fir

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Wang, Kailong, Yuxi Ling, Yanjun Zhang, et al. "Characterizing Cryptocurrency-themed Malicious Browser Extensions." ACM SIGMETRICS Performance Evaluation Review 51, no. 1 (2023): 91–92. http://dx.doi.org/10.1145/3606376.3593529.

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Due to the surging popularity of various cryptocurrencies in recent years, a large number of browser extensions have been developed as portals to access relevant services, such as cryptocurrency exchanges and wallets. This has stimulated a wild growth of cryptocurrency-themed malicious extensions that cause heavy financial losses to the users and legitimate service providers. They have shown their capability of evading the stringent vetting processes of the extension stores, highlighting a lack of understanding of this emerging type of malware in our community. In this work, we conduct the fir

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11

Herman, JoAnne. "Valsalva Response During Progressive Relaxation: An Extension Study." Scholarly Inquiry for Nursing Practice 3, no. 3 (1989): 217–26. http://dx.doi.org/10.1891/0889-7182.3.3.217.

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This was the second study in a series to investigate the impact of muscle-tension time and breathing pattern on initiation of the Valsalva response during four tense/relax cycles of progressive relaxation. Thirty-three healthy adult subjects performed the hand, upper arm, forehead, and abdomen tense/relax cycles of a standard progressive relaxation procedure while their heart rate and breathing patterns were monitored. Occurrence of the Valsalva response was determined by dividing peak tachycardia during tension by maximum bradycardia following release of the tension. A Valsalva ratio greater

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12

Crook, Carolyn, and Roger Alex Clapp. "Ecosystem structure, economic cycles and market-oriented conservation." Environmental Conservation 28, no. 3 (2001): 194–98. http://dx.doi.org/10.1017/s0376892901000200.

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Whether market-oriented conservation, by which we mean the promotion of markets for the products of intact ecosystems, protects biodiversity, and under what conditions, has been a subject of much research and debate. Our evaluation of three strategies of the market-oriented use of natural resources led us to conclude that, at least for these three strategies, market-oriented mechanisms of conservation are often socially, economically, or ecologically unsustainable, and that proposals for market-oriented conservation should be approached with caution (Crook & Clapp 1998). Shackleton's (2001

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13

Burungale, Ashay A. "ON THE NON-TRIVIALITY OF THE -ADIC ABEL–JACOBI IMAGE OF GENERALISED HEEGNER CYCLES MODULO , II: SHIMURA CURVES." Journal of the Institute of Mathematics of Jussieu 16, no. 1 (2015): 189–222. http://dx.doi.org/10.1017/s147474801500016x.

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Generalised Heegner cycles are associated to a pair of an elliptic newform and a Hecke character over an imaginary quadratic extension $K/\mathbf{Q}$. The cycles live in a middle-dimensional Chow group of a Kuga–Sato variety arising from an indefinite Shimura curve over the rationals and a self-product of a CM abelian surface. Let $p$ be an odd prime split in $K/\mathbf{Q}$. We prove the non-triviality of the $p$-adic Abel–Jacobi image of generalised Heegner cycles modulo $p$ over the $\mathbf{Z}_{p}$-anticyclotomic extension of $K$. The result implies the non-triviality of the generalised Hee

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14

Peters, James Francis, and Tane Vergili. "Good coverings of proximal Alexandrov spaces. Path cycles in the extension of the Mitsuishi-Yamaguchi good covering and Jordan Curve Theorems." Applied General Topology 24, no. 1 (2023): 25–45. http://dx.doi.org/10.4995/agt.2023.17046.

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This paper introduces proximal path cycles, which lead to the main results in this paper, namely, extensions of the Mitsuishi-Yamaguchi Good Coverning Theorem with different forms of Tanaka good cover of an Alexandrov space equipped with a proximity relation as well as extension of the Jordan curve theorem. In this work, a path cycle is a sequence of maps h1,...,hi,...,hn-1 mod n in which hi : [ 0,1 ] → X and hi(1) = hi+1(0) provide the structure of a path-connected cycle that has no end path. An application of these results is also given for the persistence of proximal video frame shapes that

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15

Kar, Kamal K., and Anil K. Bhowmick. "High Strain Hysteresis Loss of Rubber Vulcanizates under Pure Shear and Constrained Extension and Influence of Filler." Rubber Chemistry and Technology 73, no. 1 (2000): 56–73. http://dx.doi.org/10.5254/1.3547580.

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Abstract An experimental analysis of hysteresis loss, hysteresis loss ratio and input energy of natural rubber (NR) and styrene-butadiene rubber (SBR) vulcanizates having variations of loading of carbon black, precipitated silica and clay has been carried out under uniaxial, pure shear and constrained extension modes over a range of extension ratios (1.0 to 2.2 and 1.2 to 4.0 in X and Y directions, respectively), number of cycles (1 to 8) and temperatures (25 to 125 °C). Hysteresis loss, hysteresis loss ratio and input energy increase with an increase in filler loading, extension ratio (in bot

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16

Maher, Harmon Droge. "The Role of Extension in Mountain-Belt Life Cycles." Journal of Geological Education 42, no. 3 (1994): 212–19. http://dx.doi.org/10.5408/0022-1368-42.3.212.

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17

Osipov, D. U. "T-irreducible Extension for Union of Paths and Cycles." Izvestiya of Saratov University. New Series. Series: Mathematics. Mechanics. Informatics 13, no. 2(1) (2013): 100–105. http://dx.doi.org/10.18500/1816-9791-2013-13-2-1-100-105.

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18

Rössler, Damian, and Tamás Szamuely. "Cohomology and torsion cycles over the maximal cyclotomic extension." Journal für die reine und angewandte Mathematik (Crelles Journal) 2019, no. 752 (2019): 211–27. http://dx.doi.org/10.1515/crelle-2016-0070.

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Abstract A classical theorem by K. Ribet asserts that an abelian variety defined over the maximal cyclotomic extension K of a number field has only finitely many torsion points. We show that this statement can be viewed as a particular case of a much more general one, namely that the absolute Galois group of K acts with finitely many fixed points on the étale cohomology with {\mathbf{Q}/\mathbf{Z}} -coefficients of a smooth proper {\overline{K}} -variety defined over K. We also present a conjectural generalization of Ribet’s theorem to torsion cycles of higher codimension. We offer supporting

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19

Zhang, Wei, Xue Zheng Chen, Peng Fei Yin, Zheng Kai Xu, Bing Han, and Jia Wang. "EIS Study on the Deterioration Process of Organic Coatings under Immersion and Different Cyclic Wet-Dry Ratios." Applied Mechanics and Materials 161 (March 2012): 58–66. http://dx.doi.org/10.4028/www.scientific.net/amm.161.58.

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Under immersed and we-dry cyclic conditions, the deterioration processes of the organic coating on carbon steel surface have been comparatively studied using electrochemical techniques. The wet-dry cycles were carried out by exposure to 4 h immersion and 4h dryness (4-4h cycles) and 12h immersion and 12h dryness (12-12h cycles) conditions, respectively. The immersion condition was carry out in a 3.5% NaCl solution and drying at 298K and 50% RH. According to the EIS characteristics, the entire deterioration processes under above three mentioned conditions can be divided into three main stages,

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20

SINDEE, SUTTHIPONG, PARINYA SA NGIAMSUNTHORN, and SONGPON SRIWONGSA. "Periodic cycles for an extension of generalized $3x + 1$ functions." Carpathian Journal of Mathematics 40, no. 3 (2024): 727–36. http://dx.doi.org/10.37193/cjm.2024.03.12.

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The Collatz conjecture is an open problem involving the $3x + 1$ function. The function belongs to a class of generalized $3x + 1$ functions of relatively prime type. This paper focuses on exploring periodic cycles for an extension of a generalized $3x + 1$ function of relatively prime type. By extending its domain to $\mathbb{R}$, the result shows that every integer periodic point is isolated in the usual topology on $\mathbb{R}$. Moreover, every positive integer periodic cycle for the extension is attracting if the generalized $3x + 1$ function is specified by parameters under some condition

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21

Gehrlein, W. V. "Frequency estimates for linear extension majority cycles on partial orders." RAIRO - Operations Research 25, no. 4 (1991): 359–64. http://dx.doi.org/10.1051/ro/1991250403591.

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22

Gehrlein, W. V., and P. C. Fishburn. "Linear extension majority cycles for small (n⩽9) partial orders." Computers & Mathematics with Applications 20, no. 2 (1990): 41–44. http://dx.doi.org/10.1016/0898-1221(90)90239-g.

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23

Wimmer, Markus A., William Nechtow, Thorsten Schwenke, and Kirsten C. Moisio. "Knee Flexion and Daily Activities in Patients following Total Knee Replacement: A Comparison with ISO Standard 14243." BioMed Research International 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/157541.

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Walking is only one of many daily activities performed by patients following total knee replacement (TKR). The purpose of this study was to examine the hypotheses (a) that subject activity characteristics are correlated with knee flexion range of motion (ROM) and (b) that there is a significant difference between the subject’s flexion/extension excursion throughout the day and the ISO specified input for knee wear testing. In order to characterize activity, the number of walking and stair stepping cycles, the time spent with dynamic and stationary activities, the number of activity sequences,

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24

Koch, Matthias D., Chenyi Fei, Ned S. Wingreen, Joshua W. Shaevitz, and Zemer Gitai. "Competitive binding of independent extension and retraction motors explains the quantitative dynamics of type IV pili." Proceedings of the National Academy of Sciences 118, no. 8 (2021): e2014926118. http://dx.doi.org/10.1073/pnas.2014926118.

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Type IV pili (TFP) function through cycles of extension and retraction. The coordination of these cycles remains mysterious due to a lack of quantitative measurements of multiple features of TFP dynamics. Here, we fluorescently label TFP in the pathogen Pseudomonas aeruginosa and track full extension and retraction cycles of individual filaments. Polymerization and depolymerization dynamics are stochastic; TFP are made at random times and extend, pause, and retract for random lengths of time. TFP can also pause for extended periods between two extension or two retraction events in both wild-ty

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25

Acosta-Rodriguez, Victoria, Filipa Rijo-Ferreira, Mariko Izumo, Pin Xu, Carla Green, and Joseph Takahashi. "Circadian Alignment of Feeding Regulates Lifespan Extension by Caloric Restriction." Innovation in Aging 5, Supplement_1 (2021): 115–16. http://dx.doi.org/10.1093/geroni/igab046.442.

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Abstract Caloric restriction (CR) promotes longevity in several species. Classic CR protocols often lead to chronic cycles of 2h-feeding/22h-fasting, raising the question whether calories, fasting or time of day are causal. To address this, we tested an AL control group and five CR protocols with different timing and duration of feeding/fasting cycles. C57BL/6J male mice were subjected to 30% CR as one single meal a day at the beginning of the day or night (classical protocols with &lt; 2h feeding, CR-day and CR-night), or smaller meals distributed for 12h (CR-day-12h and CR-night-12h), or

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26

Davidson*, Victoria L., Dean A. Kopsell, and James E. Pollard. "The Effect of Interrupting Short Day Cycles with Day-length Extension on Floral Bud Initiation in Strawberry (Fragaria × ananasa)." HortScience 39, no. 4 (2004): 849C—849. http://dx.doi.org/10.21273/hortsci.39.4.849c.

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Experiments were conducted to investigate the potential effect on floral bud initiation in strawberry (Fragaria × ananasa, cv. Chandler) by interrupting inductive short day cycles with a day-length extension treatment. Vegetative plants were exposed to 10-, 15-, or 20-day cycles of inductive short days in growth chambers. After receiving an inductive short day treatment plants were transferred to a greenhouse where they were exposed to non-inductive long days, which stimulated panicle elongation. Dissections of apical meristems immediately following each cycle of short days revealed that cycle

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27

Al-Yahyai, Rashid, Bruce Schaffer, Jonathan H. Crane, and Frederick S. Davies. "Four Levels of Soil Water Depletion Minimally Affect Carambola Phenological Cycles." HortTechnology 15, no. 3 (2005): 623–30. http://dx.doi.org/10.21273/horttech.15.3.0623.

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Phenological cycles were determined for carambola (Averrhoa carambola) trees in a gravelly loam soil at four different soil water depletion (SWD) levels in containers and in an orchard in southern Florida. The phenological cycles of young trees grown in containers were not as well defined as those of mature trees in an orchard. Shoot extension of trees in the orchard and containers was observed from the first week of March until the third week of December. Two peak flowering periods occurred during the first week of March, and from mid-September to mid-October. The major fruit harvest periods

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28

Du, Tanghuizi, Ikumi Narita, and Toshimasa Yanai. "Three-Dimensional Torso Motion in Tethered Front Crawl Stroke and its Implications on Low Back Pain." Journal of Applied Biomechanics 32, no. 1 (2016): 50–58. http://dx.doi.org/10.1123/jab.2015-0024.

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Low back pain is a common problem among competitive swimmers, and repeated torso hyperextension is claimed to be an etiological factor. The purpose of this study was to describe the three-dimensional torso configurations in the front crawl stroke and to test the hypothesis that swimmers experience torso hyperextension consistently across the stroke cycles. Nineteen collegiate swimmers underwent 2 measurements: a measurement of the active range of motion in 3 dimensions and a measurement of tethered front crawl stroke at their maximal effort. Torso extension beyond the active range of torso mot

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29

Noyes, Frank R., Lauren E. Huser, Brad Ashman, and Michael Palmer. "Anterior Cruciate Ligament Graft Conditioning Required to Prevent an Abnormal Lachman and Pivot Shift After ACL Reconstruction: A Robotic Study of 3 ACL Graft Constructs." American Journal of Sports Medicine 47, no. 6 (2019): 1376–84. http://dx.doi.org/10.1177/0363546519835796.

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Background: Anterior cruciate ligament (ACL) graft conditioning protocols to decrease postoperative increases in anterior tibial translation and pivot-shift instability have not been established. Purpose: To determine what ACL graft conditioning protocols should be performed at surgery to decrease postoperative graft elongation after ACL reconstruction. Study Design: Controlled laboratory study. Methods: A 6 degrees of freedom robotic simulator evaluated 3 ACL graft constructs in 7 cadaver knees for a total of 19 graft specimens. Knees were tested before and after ACL sectioning and after ACL

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30

Lanza, A. F. "Stellar magnetic cycles." Proceedings of the International Astronomical Union 5, S264 (2009): 120–29. http://dx.doi.org/10.1017/s1743921309992523.

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AbstractThe solar activity cycle is a manifestation of the hydromagnetic dynamo working inside our star. The detection of activity cycles in solar-like stars and the study of their properties allow us to put the solar dynamo in perspective, investigating how dynamo action depends on stellar parameters and stellar structure. Nevertheless, the lack of spatial resolution and the limited time extension of stellar data pose limitations to our understanding of stellar cycles and the possibility to constrain dynamo models. I briefly review some results obtained from disc-integrated proxies of stellar

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31

Binda, Federico, and Amalendu Krishna. "Zero cycles with modulus and zero cycles on singular varieties." Compositio Mathematica 154, no. 1 (2017): 120–87. http://dx.doi.org/10.1112/s0010437x17007503.

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Given a smooth variety$X$and an effective Cartier divisor$D\subset X$, we show that the cohomological Chow group of 0-cycles on the double of$X$along$D$has a canonical decomposition in terms of the Chow group of 0-cycles$\text{CH}_{0}(X)$and the Chow group of 0-cycles with modulus$\text{CH}_{0}(X|D)$on$X$. When$X$is projective, we construct an Albanese variety with modulus and show that this is the universal regular quotient of$\text{CH}_{0}(X|D)$. As a consequence of the above decomposition, we prove the Roitman torsion theorem for the 0-cycles with modulus. We show that$\text{CH}_{0}(X|D)$is

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32

Venteris, E. R., I. M. Whillans, and C. J. Van der Veen. "Effect of extension rate on terminus position, Columbia Glacier, Alaska, U.S.A." Annals of Glaciology 24 (1997): 49–53. http://dx.doi.org/10.3189/s0260305500011927.

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The relations between seasonal changes in ice speed, longitudinal extension rate and terminus position are investigated for Columbia Glacier, Alaska, over the period 1977–87. The lower reach of the glacier is studied using repeat aerial photography, which extends from the terminus to the base of an icefall about 14 km up-glacier. There are regular seasonal cycles in speed and stretching rate. These cycles continue after the glacier retreats off the shoal at the end of the fjord (in about 1983), indicating that factors other than backstress, such as seasonal changes in subglacial water, control

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33

Venteris, E. R., I. M. Whillans, and C. J. Van der Veen. "Effect of extension rate on terminus position, Columbia Glacier, Alaska, U.S.A." Annals of Glaciology 24 (1997): 49–53. http://dx.doi.org/10.1017/s0260305500011927.

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The relations between seasonal changes in ice speed, longitudinal extension rate and terminus position are investigated for Columbia Glacier, Alaska, over the period 1977–87. The lower reach of the glacier is studied using repeat aerial photography, which extends from the terminus to the base of an icefall about 14 km up-glacier. There are regular seasonal cycles in speed and stretching rate. These cycles continue after the glacier retreats off the shoal at the end of the fjord (in about 1983), indicating that factors other than backstress, such as seasonal changes in subglacial water, control

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34

Hill, Callum, Mark Hughes, and Daniel Gudsell. "Environmental Impact of Wood Modification." Coatings 11, no. 3 (2021): 366. http://dx.doi.org/10.3390/coatings11030366.

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The modification of wood involves extra processing over and above what is associated with un-modified material and this will involve an associated environmental impact. There is now a body of information on this due to the presence in the public domain of a number of environmental product declarations (EPDs). Using these data, it is possible to determine what the extra impact associated with the modification is. The process of modification results in a life extension of the product, which has implications regarding the storage of sequestered atmospheric carbon in the harvested wood products (H

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35

Waldron, L. J., N. Terry, and J. A. Nemson. "Diurnal cycles of leaf extension in unsalinized and salinized Beta vulgaris." Plant, Cell and Environment 8, no. 3 (1985): 207–11. http://dx.doi.org/10.1111/1365-3040.ep11604611.

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WALDRON, L. J., N. TERRY, and J. A. NEMSON. "Diurnal cycles of leaf extension in unsalinized and salinized Beta vulgaris." Plant, Cell and Environment 8, no. 3 (1985): 207–11. http://dx.doi.org/10.1111/j.1365-3040.1985.tb01388.x.

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37

Ishigami, Yoshiyas, and Hong Wang. "An extension of a theorem on cycles containing specified independent edges." Discrete Mathematics 245, no. 1-3 (2002): 127–37. http://dx.doi.org/10.1016/s0012-365x(01)00137-6.

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38

Kocay, William. "An extension of the multi-path algorithm for finding hamilton cycles." Discrete Mathematics 101, no. 1-3 (1992): 171–88. http://dx.doi.org/10.1016/0012-365x(92)90601-b.

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39

Tong, Ke, Yan Ping Zeng, Xin Li Han, Yao Rong Feng, and Xiao Dong He. "SEM In Situ Investigation on Fatigue Cracking Behavior of X80 Pipeline Steel with Inclusions." Advanced Materials Research 284-286 (July 2011): 1096–100. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.1096.

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The micro-mechanical behavior of inclusions in X80 pipeline steel under fatigue loading was investigated by means of SEM in situ observation. The influence of sizes and shapes of inclusion on crack initiation and propagation was analyzed. The result shows that for large-size single-particle inclusion, cracks initiate from the interior under the fatigue loading. When a certain circulation cycles are reached, cracks initiate at the matrix near the sharp corner of the inclusion. The cracks extend at the matrix during the stable extension period and unstable extension period following the crack in

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40

KAYSER, MARK ANDREAS. "Trade and the Timing of Elections." British Journal of Political Science 36, no. 3 (2006): 437–57. http://dx.doi.org/10.1017/s0007123406000238.

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Do trade-transmitted international business cycles affect the timing of national elections? This article shows that export expansions do not differ substantively from booms in aggregate output in inviting opportunistic governments to call elections, especially as their terms mature. Further analysis confirms two ancillary implications of this relationship: (a) that clusters of countries tend to hold elections in periods of international economic expansion and (b) that national election cycles, much like business cycles, have become more correlated over time, most prominently in Europe. The fin

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41

Arnold, Markus P., Denny T. T. Lie, Nico Verdonschot, Ruurd de Graaf, Andrew A. Amis, and Albert van Kampen. "The Remains of Anterior Cruciate Ligament Graft Tension after Cyclic Knee Motion." American Journal of Sports Medicine 33, no. 4 (2005): 536–42. http://dx.doi.org/10.1177/0363546504269938.

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Background There is sometimes a return of excess knee laxity after anterior cruciate ligament reconstruction. One of the contributing factors might be a loss in graft tension. It is unknown whether the tension imposed on an anterior cruciate ligament graft degrades with time and, if so, the effect of that loss of tension on knee laxity. Hypotheses The pretension in the anterior cruciate ligament graft reduces significantly within the first 500 motion cycles, and this decrease in graft tension causes an increase in knee laxity. Study Design Controlled laboratory study. Methods This study measur

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42

Zhao, Ding Ding, Ping Cai, and Wei Qi. "Research on Unbalance Signal Extraction under the Constraints of Low Operation Speed and Limited Acquisition Time." Key Engineering Materials 516 (June 2012): 618–23. http://dx.doi.org/10.4028/www.scientific.net/kem.516.618.

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Aiming at extracting sinusoidal signals from strong background noise and disturbance under the constraint of limited cycles of samples, the spectral feature of the picked unbalance vibration signal of a hard bearing balancing machine was analyzed and an analogue filter was designed to eliminate the main disturbance components in the frequency domain, and a signal extension method based on the AR model was introduced and investigated. Simulation and field experiments demonstrated the feasibility of the presented extension method and an improvement in accuracy was achieved by extension of the AR

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43

Fostel, Ana, and John Geanakoplos. "Leverage Cycles and the Anxious Economy." American Economic Review 98, no. 4 (2008): 1211–44. http://dx.doi.org/10.1257/aer.98.4.1211.

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We provide a pricing theory for emerging asset classes, like emerging markets, that are not yet mature enough to be attractive to the general public. We show how leverage cycles can cause contagion, flight to collateral, and issuance rationing in a frequently recurring phase we call the anxious economy. Our model provides an explanation for the volatile access of emerging economies to international financial markets, and for three stylized facts we identify in emerging markets and high yield data since the late 1990s. Our analytical framework is a general equilibrium model with heterogeneous a

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Šećerović, A., A. Ristaniemi, F. Crivelli, et al. "ADVANCED BIOREACTOR STUDIES OF REGION-SPECIFIC RESPONSE IN THE INTERVERTEBRAL DISC TO COMPRESSION, FLEXION/EXTENSION, AND TORSION." Orthopaedic Proceedings 106-B, SUPP_2 (2024): 116. http://dx.doi.org/10.1302/1358-992x.2024.2.116.

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Intervertebral disc (IVD) degeneration is inadequately understood due to the lack of in vitro systems that fully mimic the mechanical and biological complexity of this organ. We have recently made an advancement by developing a bioreactor able to simulate physiological, multiaxial IVD loading and maintain the biological environment in ex vivo IVD models [1].To validate this new bioreactor system, we simulated natural spine movement by loading 12 bovine IVDs under a combination of static compression (0.1 MPa), cyclic flexion/extension (±3˚, ±6˚ or 0-6˚) and cyclic torsion (±2˚, ±4˚ or 0-4˚) for

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Kayama, Kotetsu, Hibiki Hashizume, Gerry Amor Camer, and Daiji Endoh. "An improved gene synthesis method with asymmetric directions of oligonucleotides designed using a simulation program." BioTechniques 69, no. 3 (2020): 211–19. http://dx.doi.org/10.2144/btn-2020-0062.

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Artificial gene synthesis based on oligonucleotide augmentation is known as overlap extension PCR which generates a variety of intermediate synthetic products. The orientation and concentration of oligomers can be adjusted to reduce the synthesis of intermediates and optimize the full-length process of DNA synthesis, using a simulation program for serial oligomer extension. The efficiency of the serial oligomer extension process is predicted to be greatest when oligomers are in a ‘forward-reverse-reverse-reverse’ direction. Oligomers with such designed directions demonstrated generation of the

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Moore, Virginia M., and William F. Tracy. "Recurrent Full-sib Family Selection for Husk Extension in Sweet Corn." Journal of the American Society for Horticultural Science 144, no. 1 (2019): 63–69. http://dx.doi.org/10.21273/jashs04559-18.

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Corn earworm (Helicoverpa zea) is a costly and destructive pest in sweet corn (Zea mays) production. A recurrent selection experiment was conducted to assess the feasibility of selecting a sweet corn population for longer husks without shortening the ears and to determine whether direct selection for longer husks confers improved resistance to the corn earworm. The initial population was derived from crosses between long- and tight-husked inbred lines (A684su, A685su, and A686su) originally selected for resistance to the european corn borer (Ostrinia nubilalis) and a high-quality commercial hy

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SOMIA, N., G. S. RASH, M. WACHOWIAK, and A. GUPTA. "The Initiation and Sequence of Digital Joint Motion." Journal of Hand Surgery 23, no. 6 (1998): 792–95. http://dx.doi.org/10.1016/s0266-7681(98)80099-5.

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We studied the initiation and sequence of digital joint motion during unrestricted flexion and extension using a 3-D motion analysis of all fingers moving simultaneously. Our results showed that motion started in a single joint in 83% of flexion and 80% of extension cycles. The DIP joint initiated flexion and extension in the index, middle, and ring fingers, but in the little finger, flexion started in the PIP joint, and extension in the MP joint. The two most frequent sequences of joint movement during flexion of the three radial fingers were DIP-PIP-MP and PIP-DIP-MP. The two most frequent s

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Cook, Daniel J., Matthew S. Yeager, Michael Y. Oh, and Boyle C. Cheng. "Lumbar Intrafacet Bone Dowel Fixation." Neurosurgery 76, no. 4 (2015): 470–78. http://dx.doi.org/10.1227/neu.0000000000000652.

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Abstract BACKGROUND: The efficacy of intrafacet bone dowels in promoting lumbar fusion has not been established. A recently published study indicates a low fusion rate, along with device migration. OBJECTIVE: To evaluate the mechanical stability of 2 lumbar facet fixation technologies before and after repeated cyclic loading. METHODS: Six human lumbar specimens were implanted with both types of allograft, one at L2-3 and the other at L4-5, on a randomized basis. All specimens were subjected to pure-moment flexibility testing before and after implantation and after 2500 and 5000 cycles of flexi

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Menaceur, Amour, and Salah Boulaaras. "A number of limit cycle of sextic polynomial differential systems via the averaging theory." Boletim da Sociedade Paranaense de Matemática 39, no. 4 (2021): 181–97. http://dx.doi.org/10.5269/bspm.41922.

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The main purpose of this paper is to study the number of limit cycles of sextic polynomial differential systems (SPDS) via the averaging theory which is an extension to the study of cubic polynomial vector fields in (Nonlinear Analysis 66 (2007), 1707--1721), where we provide an accurate upper bound of the maximum number of limit cycles that SPDS can have bifurcating from the period annulus surrounding the origin of a class of cubic system.

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Kim, Jaehong, Mark Puder, and Roy J. Soberman. "Joining of DNA Fragments by Repeated Cycles of Denaturation, Annealing and Extension." BioTechniques 20, no. 6 (1996): 954–55. http://dx.doi.org/10.2144/96206bm01.

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