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Articles de revues sur le sujet « Pivoter »

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Auteur : Grafiati
Publié le 15 juin 2023

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1

Barth-Weingarten, Dagmar, Uwe-A. Küttner et Chase Wesley Raymond. « Pivots revisited : Cesuring in action ». Open Linguistics 7, no 1 (1 janvier 2021) : 613–37. http://dx.doi.org/10.1515/opli-2020-0152.

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Abstract The term “pivot” usually refers to two overlapping syntactic units such that the completion of the first unit simultaneously launches the second. In addition, pivots are generally said to be characterized by the smooth prosodic integration of their syntactic parts. This prosodic integration is typically achieved by prosodic-phonetic matching of the pivot components. As research on such turns in a range of languages has illustrated, speakers routinely deploy pivots so as to be able to continue past a point of possible turn completion, in the service of implementing some additional or revised action. This article seeks to build on, and complement, earlier research by exploring two issues in more detail as follows: (1) what exactly do pivotal turn extensions accomplish on the action dimension, and (2) what role does prosodic-phonetic packaging play in this? We will show that pivot constructions not only exhibit various degrees of prosodic-phonetic (non-)integration, i.e., differently strong cesuras, but that they can be ordered on a continuum, and that this cline maps onto the relationship of the actions accomplished by the components of the pivot construction. While tighter prosodic-phonetic integration, i.e., weak(er) cesuring, co-occurs with post-pivot actions whose relationship to that of the pre-pivot tends to be rather retrospective in character, looser prosodic-phonetic integration, i.e., strong(er) cesuring, is associated with a more prospective orientation of the post-pivot’s action. These observations also raise more general questions with regard to the analysis of action.
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Alonso, Santiago. « Comprender : propuesta de pivotes ». Educación 20, no 38 (1 juin 2011) : 7–21. http://dx.doi.org/10.18800/educacion.201101.001.

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La pregunta básica es qué se necesita para comprender. La propuesta es que comprender necesita pivotes, término utilizado para integrar hallazgos en varias áreas. De tal manera, un pivote puede ser entendido como un modelo mental. Un pivote también es el cuerpo, idea que surge del concepto de cognición corporizada. Pero tal vez más fundamental, la biología y el cerebro son los pivotes esenciales para comprender. Así, el ensayo se puede ver como un recorrido breve de tres materias: modelos mentales, cognición corporizada y neurociencias cognitivas; todas necesarias para entender cómo comprende una persona
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Holt, Elizabeth, et Paul Drew. « Figurative Pivots : The Use of Figurative Expressions in Pivotal Topic Transitions ». Research on Language & ; Social Interaction 38, no 1 (janvier 2005) : 35–61. http://dx.doi.org/10.1207/s15327973rlsi3801_2.

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STAREC, Milan. « Brewery Radvanice. » Kvasny Prumysl 56, no 1 (1 janvier 2010) : 24–27. http://dx.doi.org/10.18832/kp2010004.

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Ruiz, Guillermo, Edgar Chavez, Ubaldo Ruiz et Eric S. Tellez. « Extreme pivots : a pivot selection strategy for faster metric search ». Knowledge and Information Systems 62, no 6 (16 novembre 2019) : 2349–82. http://dx.doi.org/10.1007/s10115-019-01423-5.

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Mohamed, Abdelmoneim Z., R. Troy Peters, Abid Sarwar, Behnaz Molaei et Don McMoran. « Impact of the Intermittency Movement of Center Pivots on Irrigation Uniformity ». Water 13, no 9 (23 avril 2021) : 1167. http://dx.doi.org/10.3390/w13091167.

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A computer model was developed to simulate the varying depths of water applied to the ground due to the intermittent movements of a typical center pivot. The stop–go model inputs include the sprinkler application depth, the sprinkler pattern, that pattern’s wetted radius, the center pivot’s % timer setting, the move cycle time, and the end tower maximum travel speed. The model outputs were the depth of application in the pivot’s movement direction, the distribution uniformity (DU), and the coefficient of uniformity (CU). The results revealed that the pivot circular application uniformity is mostly a function of the move distance as a percent of the sprinklers’ wetted radius. This, in turn, is a function of the percent timer setting, the cycle time, and the end tower travel speed. Due to this, the high-speed center pivots had corresponding lower application uniformities compared to low-speed machines, and sprinklers with larger wetted radii resulted in better uniformity. Shortening the cycle time also resulted in higher uniformity coefficients. Based on these results, it is recommended that the run time be set based on the pivot end-tower’s travel speed and sprinkler wetted radius, such that the end tower move distance is equivalent to the sprinkler wetted radius. This will reduce wear to the tower motors due to the on–off cycling, especially for slow travel settings and for sprinklers with larger wetted radii. The ponding depths at different percent of the move distance, for the potential runoff, were estimated, which were set to be equivalent to the wetted radius.
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Han, Xueran, Jun Chen, Jiaheng Lu, Yueguo Chen et Xiaoyong Du. « PivotE ». Proceedings of the VLDB Endowment 12, no 12 (août 2019) : 1966–69. http://dx.doi.org/10.14778/3352063.3352111.

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Gray, Thomas R., et Jeffery A. Jenkins. « Unpacking pivotal politics : exploring the differential effects of the filibuster and veto pivots ». Public Choice 172, no 3-4 (26 avril 2017) : 359–76. http://dx.doi.org/10.1007/s11127-017-0450-z.

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Geisinger, Elliott. « President’s Message : Pivotal Times – But Which Way Will the Pivot Point ? » ASA Bulletin 34, Issue 3 (1 août 2016) : 561–64. http://dx.doi.org/10.54648/asab2016047.

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Hirsch, Alexander V. « Theory Driven Bias in Ideal Point Estimates—A Monte Carlo Study ». Political Analysis 19, no 1 (2011) : 87–102. http://dx.doi.org/10.1093/pan/mpq028.

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This paper analyzes the use of ideal point estimates for testing pivot theories of lawmaking such as Krehbiel's (1998, Pivotal politics: A theory of U.S. lawmaking. Chicago, IL: University of Chicago) pivotal politics and Cox and McCubbins's (2005, Setting the Agenda: Responsible Party Government in the U.S. House of Representations. New York: Cambridge University Press) party cartel model. Among the prediction of pivot theories is that all pivotal legislators will vote identically on all successful legislation. Clinton (2007, Lawmaking and roll calls. Journal of Politics 69:455–67) argues that the estimated ideal points of the pivotal legislators are therefore predicted to be statistically indistinguishable and false when estimated from the set of successful final passage roll call votes, which implies that ideal point estimates cannot logically be used to test pivot theories. I show using Monte Carlo simulation that when pivot theories are augmented with probabilistic voting, Clinton's prediction only holds in small samples when voting is near perfect. I furthermore show that the predicted bias is unlikely to be consequential with U.S. Congressional voting data. My analysis suggests that the methodology of estimating ideal points to compute theoretically relevant quantities for empirical tests is not inherently flawed in the case of pivot theories.
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STAREC, Milan. « The Brewery Holba - 140 years. » Kvasny Prumysl 60, no 11-12 (1 novembre 2014) : 307–14. http://dx.doi.org/10.18832/kp2014030.

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VARHANÍK, Jiří. « Brewery of Zvíkov Castle ». Kvasny Prumysl 62, no 2 (25 février 2016) : 42–45. http://dx.doi.org/10.18832/kp2016005.

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STAREC, Milan. « The Lukavec Brewery Near Fulnek ». Kvasny Prumysl 64, no 3 (15 juin 2018) : 131–36. http://dx.doi.org/10.18832/kp201819.

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Bi, Shusheng, Tao Qiao, Hongzhe Zhao et Jingjun Yu. « STIFFNESS ANALYSIS OF TWO COMPLIANT PIVOTS USED IN SERIES ELASTIC ACTUATORS ». Transactions of the Canadian Society for Mechanical Engineering 36, no 3 (septembre 2012) : 315–28. http://dx.doi.org/10.1139/tcsme-2012-0022.

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A compliant pivot used in series elastic actuators (SEAs) can be of great practical use for saving structure space. The analysis of load-deflection behavior for such pivots can provide an analytical mechanical design method. In this paper, two pivots are proposed for the corresponding implementation. Based on the Awtar accurate approximations, the two annulus compliant pivots are further simplified to linear stiffness behavior for the SEAs applications. Specifically, an annulus compliant pivot based on parallel leaf-springs is firstly analyzed. After that, we focus on a special kind of annulus compliant pivot whose degree of constraint (DOC) was released. Finally, the accuracy characteristics of the models are identified by comparing with the results obtained by nonlinear finite element analysis.
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Li, Liang, Weirui Ye, Mingsheng Long, Yateng Tang, Jin Xu et Jianmin Wang. « Simultaneous Learning of Pivots and Representations for Cross-Domain Sentiment Classification ». Proceedings of the AAAI Conference on Artificial Intelligence 34, no 05 (3 avril 2020) : 8220–27. http://dx.doi.org/10.1609/aaai.v34i05.6336.

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Cross-domain sentiment classification aims to leverage useful knowledge from a source domain to mitigate the supervision sparsity in a target domain. A series of approaches depend on the pivot features that behave similarly for polarity prediction in both domains. However, the engineering of such pivot features remains cumbersome and prevents us from learning the disentangled and transferable representations from rich semantic and syntactic information. Towards learning the pivots and representations simultaneously, we propose a new Transferable Pivot Transformer (TPT). Our model consists of two networks: a Pivot Selector that learns to detect transferable n-gram pivots from contexts, and a Transferable Transformer that learns to generate domain-invariant representations by modeling the correlation between pivot and non-pivot words. The Pivot Selector and Transferable Transformer are jointly optimized through end-to-end back-propagation. We experiment with real tasks of cross-domain sentiment classification over 20 domain pairs where our model outperforms prior arts.
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Singhal, Amit, Chris Buckley et Manclar Mitra. « Pivoted Document Length Normalization ». ACM SIGIR Forum 51, no 2 (2 août 2017) : 176–84. http://dx.doi.org/10.1145/3130348.3130365.

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Luk, Franklin T., et Sanzheng Qiao. « A pivoted LLL algorithm ». Linear Algebra and its Applications 434, no 11 (juin 2011) : 2296–307. http://dx.doi.org/10.1016/j.laa.2010.04.003.

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Harris, Peter, et Peter Trubowitz. « The Politics of Power Projection : The Pivot to Asia, Its Failure, and the Future of American Primacy ». Chinese Journal of International Politics 14, no 2 (1 mars 2021) : 187–217. http://dx.doi.org/10.1093/cjip/poab002.

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Abstract Why did the Obama administration's attempted pivot (or “rebalance”) to Asia fail? In this article, we argue that three interrelated domestic factors are to blame: hyper-partisanship in Washington, DC; the lack of a compelling foreign-policy narrative to make the pivot intelligible and attractive to a broad slice of the political class and domestic public; and the related failure to convince enough Americans that the pivot was necessary to boost their economic fortunes. These domestic stumbling blocks made it impossible for the Obama administration to invest US power assets toward a long-term programmatic endeavor in the Asia-Pacific. In making this argument about the domestic foundations of US power-projection, we improve upon existing explanations of the pivot's undoing that focus on international-level obstacles, problems with the pivot's design and implementation, or the unexpected election of Donald Trump as Obama's successor. We conclude by drawing implications for US power projection beyond the pivot and, indeed, beyond East Asia—suggesting that the US political system has become a weak foundation upon which to build any ambitious foreign-policy superstructure.
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Reynolds, Molly E. « What If You Could Pick the Pivot ? Budget Reconciliation and Pivotal Politics in the Contemporary Congress ». Journal of Politics 80, no 3 (juillet 2018) : 1069–75. http://dx.doi.org/10.1086/697948.

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Ben-Naim, Jonathan. « Pivotal and Pivotal-discriminative Consequence Relations ». Journal of Logic and Computation 15, no 5 (1 octobre 2005) : 679–700. http://dx.doi.org/10.1093/logcom/exi030.

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Arionfard, Hamid, et Sina Mohammadi. « Numerical Investigation of the Geometrical Effect on Flow-Induced Vibration Performance of Pivoted Bodies ». Energies 14, no 4 (20 février 2021) : 1128. http://dx.doi.org/10.3390/en14041128.

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In this study, the Flow-Induced Vibration (FIV) of pivoted cylinders (at a distance) is numerically investigated as a potential source of energy harvesting. In particular, we investigate the effect of pivot point placement, arm length, and natural frequency on the FIV performance of six different cross sections in the Reynolds number of around 1000. All sections have similar mass, area, and moment of inertia to eliminate non-geometrical effects on the performance. Classical studies show that the synchronization phenomenon (lock-in) occurs when the vortex formation frequency is close enough to the body’s natural frequency. Due to the configuration of the cylinder in this research (pivoted eccentrically), the natural frequency is also a function of the flow velocity as well as the geometrical specifications of the system. The simulation is done for the arm lengths between −3D and +3D for all cross sections. Results show that maximum output power is principally influenced more by the pivot location than the arm length. Although the box cross section has a higher amplitude of vibration, the circular cross section has the highest efficiency followed by the egg shape.
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RICHMAN, JESSE. « Parties, Pivots, and Policy : The Status Quo Test ». American Political Science Review 105, no 1 (février 2011) : 151–65. http://dx.doi.org/10.1017/s0003055410000638.

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Identifying policy status quo locations is a precondition for testing key predictions of many spatial models of legislative politics, but such measures have proved to be extremely difficult to construct. This study applies a novel technique that measures policy locations in relation to legislators’ preferences. The resulting status quo estimates allow for a direct test of the policy consequences predicted by pivotal politics and party cartel theories of legislative politics. The empirical tests indicate that parties interact with pivotal politics to contribute to policy gridlock and shape policy change. By bringing pressure to bear on pivotal politics “pivots” and by blocking policy changes that would “roll” the party, parties increase the range of policies subject to gridlock in the American political system.
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KOLKA, Miroslav, et Milan STAREC. « Brewery in Jablonné v Podještědí - historical development ». Kvasny Prumysl 64, no 5 (15 octobre 2018) : 258–62. http://dx.doi.org/10.18832/kp201828.

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Adewuya, Ruth, et Jayzona Alberto. « PIVOT, PIVOT, PIVOT ». Journal of Continuing Education in the Health Professions 41, no 2 (2021) : 89–90. http://dx.doi.org/10.1097/ceh.0000000000000361.

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Khan, Sadaf, Shahab A. A. Nami et K. S. Siddiqi. « Piperazine pivoted transition metal dithiocarbamates ». Journal of Molecular Structure 875, no 1-3 (mars 2008) : 478–85. http://dx.doi.org/10.1016/j.molstruc.2007.05.020.

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Chew, M. « Application of Kinematically Compatible Rolling-Contact Pairs to the Design of Low-Friction Rocker-Pivots ». Journal of Mechanisms, Transmissions, and Automation in Design 107, no 3 (1 septembre 1985) : 388–93. http://dx.doi.org/10.1115/1.3260728.

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The concept of rolling-contact has been applied to reduce friction at highly loaded rocker-pivots without the use of rolling element bearings. Various configurations for a rolling motion at the pivot are discussed. As an example, this rolling-contact concept is applied to the pivot of a valve-train rocker. Problems relating to stability and motion distortion of the rocker are addressed and solved, resulting in significant friction reduction at the pivot.
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Ferreira, Elizabeth, Joice H. de Toledo, Antonio A. A. Dantas et Rafael M. Pereira. « Cadastral maps of irrigated areas by center pivots in the State of Minas Gerais, using CBERS-2B/CCD satellite imaging ». Engenharia Agrícola 31, no 4 (2011) : 771–80. http://dx.doi.org/10.1590/s0100-69162011000400015.

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Medium-resolution satellite images have been widely used for the identification and quantification of irrigated areas by center pivot. These areas, which present predominantly circular forms, can be easily identified by visual analyses of these images. In addition to identifying and quantifying areas irrigated by center pivot, other information that is associated to these areas is fundamental for producing cadastral maps. The goal of this work was to generate cadastral mapping of areas irrigated by center pivots in the State of Minas Gerais, Brazil, with the purpose of supplying information on irrigated agriculture. Using the satellite CBERS2B/CCD, images were used to identify and quantify irrigated areas and then associate these areas with a database containing information about: irrigated area, perimeter, municipality, path row, basin in which the pivot is located, and the date of image acquisition.3,781 center pivots systems were identified. The smallest area irrigated was 4.6 hectares and the largest one was 192.6 hectares. The total estimated value of irrigated area was 254,875 hectares. The largest number of center pivots appeared in the municipalities of Unaí and Paracatu, with 495 and 459 systems, respectively. Cadastral mapping is a very useful tool to assist and enhance information on irrigated agriculture in the State of Minas Gerais.
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KAUCKÁ, Kristýna. « The Brewery in Krušovice and the First Czechoslovak Land Reform ». Kvasny Prumysl 62, no 2 (25 février 2016) : 60–62. http://dx.doi.org/10.18832/kp2016009.

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Gentry, A. W., et J. M. Harris. « Pivotal Documentation ». Journal of Biogeography 19, no 3 (mai 1992) : 340. http://dx.doi.org/10.2307/2845458.

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Margolis, Howard. « Pivotal Voting ». Journal of Theoretical Politics 13, no 1 (janvier 2001) : 111–16. http://dx.doi.org/10.1177/0951692801013001007.

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Seppa, Nathan. « Pivotal Protein ». Science News 165, no 1 (3 janvier 2004) : 5. http://dx.doi.org/10.2307/4014743.

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Katz, James E. « Pivotal issues ». Society 26, no 5 (juillet 1989) : 5–10. http://dx.doi.org/10.1007/bf02700249.

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Gordon, David F., Per Pinstrup-Andersen, Michael D. Watkins et Mark C. Medish. « Pivotal Mistakes ». Foreign Affairs 75, no 3 (1996) : 165. http://dx.doi.org/10.2307/20047647.

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Chan, Jimmy, Seher Gupta, Fei Li et Yun Wang. « Pivotal persuasion ». Journal of Economic Theory 180 (mars 2019) : 178–202. http://dx.doi.org/10.1016/j.jet.2018.12.008.

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张, 英杰. « Chinese “Pivotal Structure” Is Not Pivotal at All ». Modern Linguistics 06, no 02 (2018) : 190–96. http://dx.doi.org/10.12677/ml.2018.62023.

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Saruhan, Hamit. « Pivoted‐pad journal bearings lubrication design ». Industrial Lubrication and Tribology 63, no 2 (8 mars 2011) : 119–26. http://dx.doi.org/10.1108/00368791111112234.

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Tønder, Kristian. « Dimpled pivoted plane bearings : Modified coefficients ». Tribology International 43, no 12 (décembre 2010) : 2303–7. http://dx.doi.org/10.1016/j.triboint.2010.08.001.

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Torr, P. H. S., et A. Criminisi. « Dense stereo using pivoted dynamic programming ». Image and Vision Computing 22, no 10 (septembre 2004) : 795–806. http://dx.doi.org/10.1016/j.imavis.2004.02.012.

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Stabrowski, M. M. « New pivoted banded linear equations solvers ». Communications in Numerical Methods in Engineering 16, no 5 (mai 2000) : 315–23. http://dx.doi.org/10.1002/(sici)1099-0887(200005)16:5<315 ::aid-cnm338>3.0.co;2-k.

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Green, Omiyẹmi Artisia. « A Testament on the Challenges of Holding HANDS UP ». Journal of American Folklore 134, no 534 (1 octobre 2021) : 418–29. http://dx.doi.org/10.5406/jamerfolk.134.534.0418.

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Abstract Due to evolving racial dynamics on the US national stage in 2020, the William & Mary Theatre production of HANDS UP: 7 PLAYWRIGHTS, 7 TESTAMENTS pivoted to an interactive conversation featuring select directors and actors. In this essay, I employ autocritography as a strategy to reflect on the process from proposal to production to pivot to conversation. I also consider the role of Black performances of trauma in a time of crisis, and the need for more equitable and inclusive educational theater environments for Black actors.
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STAREC, Milan. « History of brewing in Moravská Ostrava. Part 3 : Czech joint-stock brewery. » Kvasny Prumysl 57, no 5 (1 mai 2011) : 127–31. http://dx.doi.org/10.18832/kp2011010.

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SEDEÑO-NODA, A., et C. GONZÁLEZ-MARTÍN. « SHORTEST PATH SIMPLEX ALGORITHM WITH A MULTIPLE PIVOT RULE : A COMPARATIVE STUDY ». Asia-Pacific Journal of Operational Research 27, no 06 (décembre 2010) : 677–91. http://dx.doi.org/10.1142/s0217595910002946.

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This paper introduces a new multiple pivot shortest path simplex method by choosing a subset of non-basic arcs to simultaneously enter into the basis. It is shown that the proposed shortest path simplex method requires O (n) multiple pivots and its running time is O (nm). Results from a computational study comparing the proposed method from previously known methods are reported. The experimental show that the proposed rule is more efficient than the considered shortest path simplex pivot rules.
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Zhang, Aimei, Yanjie Gou et Xihui Yang. « Predicting Nonlinear Stiffness, Motion Range, and Load-Bearing Capability of Leaf-Type Isosceles-Trapezoidal Flexural Pivot Using Comprehensive Elliptic Integral Solution ». Mathematical Problems in Engineering 2020 (12 février 2020) : 1–11. http://dx.doi.org/10.1155/2020/1390692.

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A leaf-type isosceles-trapezoidal flexural (LITF) pivot consists of two leaf springs that are situated in the same plane and intersect at a virtual center of motion outside the pivot. The LITF pivot offers many advantages, including large rotation range and monolithic structure. Each leaf spring of a LITF pivot subject to end loads is deflected into an S-shaped configuration carrying one or two inflection points, which is quite difficult to model. The kinetostatic characteristics of the LITF pivot are precisely modeled using the comprehensive elliptic integral solution for the large-deflection problem derived in our previous work, and the strength-checking method is further presented. Two cases are employed to verify the accuracy of the model. The deflected shapes and nonlinear stiffness characteristics within the range of the yield strength are discussed. The load-bearing capability and motion range of the pivot are proposed. The nonlinear finite element results validate the effectiveness and accuracy of the proposed model for LITF pivots.
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Mukhopadhyay, Nitis. « A Pedagogical Note on Asymptotic Normality of a Two-Sample Approximate Pivot for Comparing Means ». Calcutta Statistical Association Bulletin 73, no 1 (15 janvier 2021) : 45–52. http://dx.doi.org/10.1177/0008068320979483.

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A two-sample pivot for comparing the means from independent populations is well known. For large sample sizes, the distribution of the pivot is routinely approximated by a standard normal distribution. The question is about the thinking process that may guide one to rationalize invoking the asymptotic theory. In this pedagogical piece, we put forward soft statistical arguments to make users feel more at ease by suitably indexing the sample sizes from a practical standpoint that would allow a valid interpretation and understanding of pointwise convergence of the pivot's cumulative distribution function (c.d.f.) to the c.d.f. of a standard normal random variable.
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Berriau, Nathalie. « L’Adbs pivote, et I2D avec elle ». I2D - Information, données & ; documents 54, no 4 (2017) : 1. http://dx.doi.org/10.3917/i2d.174.0001.

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Song, Zhixiang, Fei Guo, Ying Liu, Songtao Hu, Xiangfeng Liu et Yuming Wang. « Investigation of slip/no-slip surface for two-dimensional large tilting pad thrust bearing ». Industrial Lubrication and Tribology 69, no 6 (13 novembre 2017) : 995–1004. http://dx.doi.org/10.1108/ilt-06-2017-0152.

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Purpose This paper aims to present the slip/no-slip design in two-dimensional water-lubricated tilting pad thrust bearings (TPTBs) considering the turbulence effect and shifting of pressure centers. Design/methodology/approach A numerical model is established to analyze the slip condition and the effect of turbulence according to a Reynolds number defined in terms of the slip condition. Simulations are carried out for eccentrically and centrally pivoted bearings and the influence of different slip parameters is discussed. Findings A considerable enhancement in load capacity, as well as a reduction in friction, can be achieved by heterogeneous slip/no-slip surface designs for lubricated sliding contacts, especially for near parallel pad configurations. The optimized design largely depends on the pivot position. The load capacity increases by 174 per cent for eccentrically pivoted bearings and 159 per cent for centrally pivoted bearings for a suitable design. When slip zone locates at the middle of the radial direction or close to the inner edge, the performance of the TPTB is better. Research limitations/implications The simplification of slip effect on the turbulence (definition of Reynolds number) can only describe the trend of the increasing turbulence due to slip condition. The accurate turbulence expression considering the boundary slip needs further explorations. Originality/value The shifting of pressure center due to the slip/no-slip design for TPTBs is investigated in this study. The turbulence effect and influence of slip parameters is discussed for large water-lubricated bearings.
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Abel, Paul. « A pivotal moment ». Science 373, no 6552 (15 juillet 2021) : 358. http://dx.doi.org/10.1126/science.373.6552.358.

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Whyte, Alison. « A pivotal position ». Nursing Standard 25, no 23 (9 février 2011) : 18–19. http://dx.doi.org/10.7748/ns.25.23.18.s25.

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Cruz-Orive, Luis M. « THE PIVOTAL TESSELLATION ». Image Analysis & ; Stereology 28, no 2 (3 mai 2011) : 63. http://dx.doi.org/10.5566/ias.v28.p63-67.

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The tessellation studied here is motivated by some stereological applications of a new expression for the motion invariant density of straight lines in R3. The term 'pivotal' stems from the fact that the tessellation is constructed within a plane which is isotropic through a fixed, 'pivotal' origin. Consider either a stationary point process, or a stationary random lattice of points in that plane. Through each point event draw a straight line which is perpendicular to the axis determined by the origin and the point event. The union of all such lines (called p-lines) constitutes the mentioned tessellation. We concentrate on the pivotal tessellation based on a stationary and isotropic planar Poisson point process; we show that this tessellation is not stationary.
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Modic, Mary Beth. « The Pivotal Preceptor ». Journal for Nurses in Professional Development 33, no 4 (2017) : 207–8. http://dx.doi.org/10.1097/nnd.0000000000000369.

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