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Journal articles on the topic 'Partitive Division'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Ott, Jack M., Daniel L. Snook, and Diana L. Gibson. "Understanding Partitive Division of Fractions." Arithmetic Teacher 39, no. 2 (October 1991): 7–11. http://dx.doi.org/10.5951/at.39.2.0007.

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When first-grade students start addition of whole numbers, they are given sets of objects to combine and count to determine the sum. Most educators agree that beginning students need experience combining group or objects, such as combining two pencils and three pencils to get a group of five pencils. Such activities are needed to give students an understanding of what addition means before moving on to faster — but less meaningful — ways to sum numbers, such as the use of an algorithm or calculator. This approach is based on the learning principle that meaning comes from knowing the things signified by the symbols. Thus, familiar, concrete experience — actual or recalled — should be a first step in the development of new abstract concepts and their symbolization. Though this principle of moving from the concrete to the abstract is extensively used in teaching the addition of whole numbers, it is used much less in teaching the division of fractions. The inevitable result in that a student may be able to use an algorithm by rote to divide fractions, but the skill is useless because it is devoid of meaning.

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2

Huumo, Tuomas. "Moni or monta? The collective vs. distributive opposition between two forms of the quantifier ‘many’ in Finnish." Eesti ja soome-ugri keeleteaduse ajakiri. Journal of Estonian and Finno-Ugric Linguistics 8, no. 2 (September 6, 2017): 7–33. http://dx.doi.org/10.12697/jeful.2017.8.2.01.

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In this work I explore the semantics of two case forms of the Finnish quantifier moni ‘many’: the regular nominative moni and the regular partitive monta [mon-ta many-PARTITIVE], which however has taken on a function similar to that of the nominative of numerals and is thus not a functional partitive anymore. This development has apparently motivated the rise of the pleonastic montaa [mon-ta-a many-PARTITIVE-PARTITIVE] to unambiguously mark the partitive. I argue that an important difference between moni and monta is the opposition between a distributive and a collective meaning: in ambiguous contexts, moni is clearly distributive and monta collective. I compare the two with the nominative form of the near-synonymous quantifier usea ‘several; a number of’ which in similar contexts displays ambiguity between the distributive and collective readings. The analysis sheds new light to the division of labor between the two (functional) nominative forms of moni, showing that they divide the functions of the nominative in an idiosyncratic way.Kokkuvõte. Tuomas Huumo: Moni või monta? Distributiivse ja kollektiivse tähenduse vastandus soome keele kvantori moni ‘mitu’ kahe käändevormi vahel. Artikkel käsitleb soome keele kvantori moni ‘mitu’ kahe käändevormi tähenduserinevusi. Võrdlusobjektideks on reeglipärane nominatiiv moni ning reeglipäraselt moodustatud partitiivivorm monta [mon-ta mitu-PARTITIIV ‘mitut’], millel siiski on tekkinud arvsõnade nominatiivile sarnane funktsioon ning mis seetõttu ei ole enam funktsionaalne partitiiv. See areng on tõenäoliselt motiveerinud ka pleonastilise, kahe partitiivilõpuga vormi mon-ta-a [mitu-PARTITIIV-PARTITIIV] teket, mis väljendab ühetähenduslikult partitiivi funktsioone. Artikli põhiväide on, et oluline erinevus vormide moni ja monta vahel on distributiivse ja kollektiivse tähenduse vastandamine: mitmetitõlgendatavates kontekstides annab moni edasi distributiivset, monta aga kollektiivset tähendust. Artiklis võrreldakse nimetatud kaht vormi lisaks ka semantiliselt lähedase kvantori usea ‘mitu; arvukas’ nominatiivivormiga. Usea on sarnastes kontekstides mitmetähenduslik ning võib edasi anda nii distributiivset kui ka kollektiivset tähendust. Kokkuvõttes valgustab analüüs seni käsitlemata vaatenurgast kvantori moni kahe (funktsionaalses mõttes nominatiivi-)vormi tööjaotust, mis on üsnagi idiosünkraatiline.Võtmesõnad: kvantor; kääne; partitiiv; kollektiivne vs. distributiivne tähendus; soome keel

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3

Jong, Cindy, and Robin Magruder. "Beyond Cookies: Understanding Various Division Models." Teaching Children Mathematics 20, no. 6 (February 2014): 366–73. http://dx.doi.org/10.5951/teacchilmath.20.6.0366.

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4

Kouba, Vicky L. "Children's Solution Strategies for Equivalent Set Multiplication and Division Word Problems." Journal for Research in Mathematics Education 20, no. 2 (March 1989): 147–58. http://dx.doi.org/10.5951/jresematheduc.20.2.0147.

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One hundred twenty-eight children in Grades 1, 2, and 3 were given two multiplication and four division word problems that differed in semantic structure. The children's solution strategies were classified by degree of abstraction into direct representation, double counting, transitional counting, additive or subtractive, or recalled number fact. Strategies were also classified by use of physical objects: use as representations of individual elements, use as tallies or repeated references, or no use. Analyses of the solution strategies indicated the existence of a two-step intuitive model for multiplication, two common intuitive models for partitive division and measurement division each of which was related to an intuitive model for subtraction, and a third model for partitive division.

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5

Wahyu, Kamirsyah, Taha Ertugrul Kuzu, Sri Subarinah, Dwi Ratnasari, and Sofyan Mahfudy. "PARTITIVE FRACTION DIVISION: REVEALING AND PROMOTING PRIMARY STUDENTS’ UNDERSTANDING." Journal on Mathematics Education 11, no. 2 (April 17, 2020): 237–58. http://dx.doi.org/10.22342/jme.11.2.11062.237-258.

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Students show deficient understanding on fraction division and supporting that understanding remains a challenge for mathematics educators. This article aims to describe primary students’ understanding of partitive fraction division (PFD) and explore ways to support their understanding through the use of sequenced fractions and context-related graphical representations. In a design-research study, forty-four primary students were involved in three cycles of teaching experiments. Students’ works, transcript of recorded classroom discussion, and field notes were retrospectively analyzed to examine the hypothetical learning trajectories. There are three main findings drawn from the teaching experiments. Firstly, context of the tasks, the context-related graphical representations, and the sequence of fractions used do support students’ understanding of PFD. Secondly, the understanding of non-unit rate problems did not support the students’ understanding of unit rate problems. Lastly, the students were incapable of determining symbolic representations from unit rate problems and linking the problems to fraction division problems. The last two results imply to rethink unit rate as part of a partitive division with fractions. Drawing upon the findings, four alternative ways are offered to support students’ understanding of PFD, i.e., the lesson could be starting from partitive whole number division to develop the notion of fair-sharing, strengthening the concept of unit in fraction and partitioning, choosing specific contexts with more relation to the graphical representations, and sequencing the fractions used, from a simple to advanced form.

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6

Fischbein, Efraim, Maria Deri, Maria Sainat Nello, and Maria Sciolis Marino. "The Role of Implicit Models in Solving Verbal Problems in Multiplication and Division." Journal for Research in Mathematics Education 16, no. 1 (January 1985): 3–17. http://dx.doi.org/10.5951/jresematheduc.16.1.0003.

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Arithmetical operations were assumed to remain attached to primitive behavioral models that influence tacitly the choice of an operation even after the learner has had solid formal-algorithmic training. The model for multiplication was conjectured to be repeated addition, and two primitive models (partitive and quotative) were seen as linked to division. A total of 623 pupils enrolled in 13 Italian schools (Grades 5, 7, and 9) were asked to choose the operation needed to solve 26 multiplication and division word problems. Violations by the numerical data of the constraints imposed by the assumed tacit models (for instance, when the operator was a decimal number) constituted particular sources of difficulty at all three grade levels. The findings seemed to confirm the impact of the repeated addition model on multiplication and of the partitive model on division. The quotative division model influenced the pupils' choices only at the ninth-grade level.

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7

Moyer, Patricia Seray. "Links to Literature: A Remainder of One: Exploring Partitive Division." Teaching Children Mathematics 6, no. 8 (April 2000): 517–21. http://dx.doi.org/10.5951/tcm.6.8.0517.

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Children's literature can be a springboard for conversations about mathematical concepts. Austin (1998) suggests that good children's literature with a mathematical theme provides a context for both exploring and extending mathematics problems embedded in stories. In the context of discussing a story, children connect their everyday experiences with mathematics and have opportunities to make conjectures about quantities, equalities, or other mathematical ideas; negotiate their understanding of mathematical concepts; and verbalize their thinking. Children's books that prompt mathematical conversations also lead to rich, dynamic communication in the mathematics classroom and develop the use of mathematical symbols in the context of communicating. The National Council of Teachers of Mathematics (1989) emphasizes the importance of communication in helping children both construct mathematical knowledge and link their informal notions with the abstract symbols used to express mathematical ideas.

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8

Simon, Martin A. "Prospective Elementary Teachers' Knowledge of Division." Journal for Research in Mathematics Education 24, no. 3 (May 1993): 233–53. http://dx.doi.org/10.5951/jresematheduc.24.3.0233.

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Prospective teachers' knowledge of division was investigated through an open-response written instrument and through individual interviews. Problems were designed to focus on two aspects of understanding division: connectedness within and between procedural and conceptual knowledge and knowledge of units. Results indicated that the prospective teachers' conceptual knowledge was weak in a number of areas including the conceptual underpinnings of familiar algorithms, the relationship between partitive and quotitive division, the relationship between symbolic division and real-world problems, and identification of the units of quantities encountered in division computations. The research also characterized aspects of individual conceptual differences. The research results suggest conceptual areas of emphasis for the mathematical preparation of elementary teachers.

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9

Hohensee, Charles, and Amanda Jansen. "Elementary Preservice Teachers’ Transitional Conceptions of Partitive Division with Proper-Fraction Divisors." Mathematical Thinking and Learning 19, no. 4 (October 2, 2017): 210–36. http://dx.doi.org/10.1080/10986065.2017.1346452.

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10

Jansen, Amanda, and Charles Hohensee. "Examining and elaborating upon the nature of elementary prospective teachers’ conceptions of partitive division with fractions." Journal of Mathematics Teacher Education 19, no. 6 (June 30, 2015): 503–22. http://dx.doi.org/10.1007/s10857-015-9312-0.

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11

Beckmann, Sybilla, and Andrew Izsák. "Two Perspectives on Proportional Relationships: Extending Complementary Origins of Multiplication in Terms of Quantities." Journal for Research in Mathematics Education 46, no. 1 (January 2015): 17–38. http://dx.doi.org/10.5951/jresematheduc.46.1.0017.

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In this article, we present a mathematical analysis that distinguishes two distinct quantitative perspectives on ratios and proportional relationships: variable number of fixed quantities and fixed numbers of variable parts. This parallels the distinction between measurement and partitive meanings for division and between two meanings for multiplication—one rooted in counting equal-sized groups, the other in scaling the size of the groups. We argue that (a) the distinction in perspectives is independent from other distinctions in the literature on proportional relationships, including the within measure space versus between measure space ratio distinction; (b) the psychological roots for multiplication suggest the accessibility of the two perspectives to learners; and (c) the fixed numbers of variable parts perspective, though largely overlooked in past research, may provide an important foundation for central topics that build on proportional relationships. We also suggest directions for future empirical research.

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12

Parr, Joy. "Disaggregating the Sexual Division of Labour: A Transatlantic Case Study." Comparative Studies in Society and History 30, no. 3 (July 1988): 511–33. http://dx.doi.org/10.1017/s0010417500015358.

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Sexual division has been an obvious and enduring characteristic of wage work, much studied on both sides of the Atlantic. Gender roles, household forms, and community welfare have been made and remade by changing access to paid work. The theoretical literature on gender segregation in the labour force is rich, but economists and feminist theorists have been interested in sexual divisions as general features of the economic or sex/gender system rather than as boundaries between tasks forged in defined contexts by particular clashes of interest. Whether in specifying the social groups that benefited by gender division, the systematic relationships that generated the boundaries, or the traits upon which lines of partition were drawn, most analysts have dealt with gender division as a characteristic of the work force as a whole.

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13

Noirot, Corinne. "École, corps, jeu: avatars de la partition dans Entre les murs de François Bégaudeau." Nottingham French Studies 52, no. 3 (December 2013): 322–36. http://dx.doi.org/10.3366/nfs.2013.0063.

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Entre les murs de François Bégaudeau (2006) s'attache au travail quotidien d'un jeune professeur de français dans un collège parisien de ceux dits « sensibles ». Loin d'engendrer la claustrophobie, la restriction de champ choisie nourrit une écriture modulant l'idée de partition dans tous les sens: séparation, division, tracé, partage, et composition musicale. Un fin montage de vues, faits et voix met en scène les divisions entre espaces, corps et discours pour mieux composer un microcosme du corps social. Le roman suggère une voie menant de la séparation au partage, passant par la notion de jeu collectif. Comme l’école, le livre interroge les conditions d'un dialogue en démocratie.

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14

Luo, Jing, and Qingnian Zhang. "Subdivision of Urban Traffic Area Based on the Combination of Static Zoning and Dynamic Zoning." Discrete Dynamics in Nature and Society 2021 (July 15, 2021): 1–17. http://dx.doi.org/10.1155/2021/9954267.

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In this paper, the traffic area of subzone division in urban road network is studied and a subzone division method based on the combination of static partition and dynamic partition is proposed. The static partition is carried out for the road network when the traffic flow is in a noncongested state, so as to provide the decision-making basis for the traffic green wave signal control strategy. At the same time, aiming at the road network when the traffic flow is congested, the dynamic partition is carried out on the basis of static partition to provide the decision-making basis for the traffic maximum flow signal control strategy. In view of the fact that it is difficult to determine the clustering center point during the initial division, this method proposes to determine the clustering center point according to the value of nodes of betweenness centrality. In order to solve the problem that it is difficult to collect traffic data, a method for estimating traffic flow density is proposed. In order to solve the problem of normalization of different probability distribution among various parameters, Mahalanobis distance is used as the fusion index of subzone division. Model verification shows that the method is feasible and effective.

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15

Gelézeau, Valérie. "Beyond the 'Long Partition'. From Divisive Geographies of Korea to the Korean 'Meta-Culture'." European Journal of East Asian Studies 9, no. 1 (2010): 1–24. http://dx.doi.org/10.1163/156805810x517643.

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AbstractThis paper addresses the importance of the post-colonial division of Korea between North and South in shaping not only territorial structures, but also geographical interpretations of contemporary Korea. After a critical analysis of the Korean 'meta-border', the paper discusses how traditional approaches in Korean geography consider the 'long partition' as a backdrop affecting South and North Korean societies. Until the 1990s, this divisive paradigm was expressed in South Korea by the focus on various embodiments of the developmental state at the national scale with great attention on Seoul, or its alternative, the regional problem (chiyok munje). Recent trends in Korean studies acknowledge the peculiarities of the Korean socio-spatial dimensions that disturb multi-scaled borders and boundaries, geographical, national or ethnic. The paper argues that, in the classical paradigm, the division between North and South Korea, internalised at all levels of the socio-spatial spheres, acted as an essential matrix for shaping not only both societies but their narratives in the social sciences. This requires a new geographical approach to Korea, going beyond the partition, from territorial borders between North and South to epistemological borders within Korean geographies, or Korean studies themselves, in order to better grasp the notion of a 'Korean meta-culture'.

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16

Lu, Zhi-mao, Chen Liu, S. Massinanke, Chun-xiang Zhang, and Lei Wang. "Clustering method based on data division and partition." Journal of Central South University 21, no. 1 (January 2014): 213–22. http://dx.doi.org/10.1007/s11771-014-1932-5.

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17

DMOWSKI, MICHAŁ, and GRAŻYNA JAGURA-BURDZY. "Active Stable Maintenance Functions in Low Copy-Number Plasmids of Gram-positive Bacteria. I. Partition Systems." Polish Journal of Microbiology 62, no. 1 (2013): 3–16. http://dx.doi.org/10.33073/pjm-2013-001.

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Low copy number plasmids cannot rely on the random segregation during bacterial cell division. To be stably maintained in the population they evolved two types of mechanisms (i) partition systems (PAR) that actively separate replicated plasmid molecules to the daughter cells and (ii) toxin-andidote systems (TA) that act after cell division to kill plasmid-less cells. Our knowledge of partition systems has been based mainly on analysis of plasmids from Gram-negative bacteria. Now, numerous partition systems of plasmids from Gram-positive bacteria have also been characterized and make significant contribution to our understanding of these mechanisms.

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18

Polly, Drew, and Laura Ruble. "Learning to Share Equally." Teaching Children Mathematics 15, no. 9 (May 2009): 558–63. http://dx.doi.org/10.5951/tcm.15.9.0558.

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After five weeks of assessing and improving their third graders' understanding of partition and measurement models of division, these authors challenge students to attempt their own division story problems.

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Reddy, Akkireddy Mohan Kumar. "Optimized Multirate Wideband Speech Steganography for Improving Embedding Capacity Compared with Neighbor-Index-Division Codebook Division Algorithm." Revista Gestão Inovação e Tecnologias 11, no. 2 (June 5, 2021): 1362–76. http://dx.doi.org/10.47059/revistageintec.v11i2.1763.

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Aim: The main motive of this study is to perform Adaptive Multi Rate Wideband (AMR-WB) Speech Steganography in network security to produce the stego speech with less loss of quality while increasing embedding capacities. Materials and Methods: TIMIT Acoustic-Phonetic Continuous Speech Corpus dataset consists of about 16000 speech samples out of which 1000 samples are taken and 80% pretest power for analyzing the speech steganography. AMR-WB Speech steganography is performed by Diameter Neighbor codebook partition algorithm (Group 1) and Neighbor Index Division codebook division algorithm (Group 2). Results: The AMR-WB speech steganography using DN codebook partition obtained average quality rate of 2.8893 and NID codebook division algorithm obtained average quality rate of 2.4196 in the range of 300bps embedding capacity. Conclusion: The outcomes of this study proves that the decrease in quality in NID is twice more than the DN based steganography while increasing the embedding capacities.

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20

Luo, Xu, Yong Min Yang, Zhe Xue Ge, and Zhi Miao Lu. "A Method for the ORU Division of Manned Spacecraft." Advanced Materials Research 889-890 (February 2014): 208–11. http://dx.doi.org/10.4028/www.scientific.net/amr.889-890.208.

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In order to make on-orbit maintenance easy, a division method for the orbital replaceable unit (ORU) of manned spacecraft is proposed. Selection range of ORU was determined based on analyzing on-orbit repair requirements of system. Then a logic judgment strategy for ORU division was established to obtain a preliminary partition scheme, and the verification method is used to adjust the scheme of ORU division. Finally, the proposed method is applied on a subsystem of a manned spacecraft and the partition scheme can ensure the balance of system performances, which indicate that the proposed method can provide a feasible approach to engineering implementation.

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21

Teng, Xiao Yan, Fan Kai Kong, and Jia Tai Zhang. "An Approach for Module Partition of Product." Key Engineering Materials 419-420 (October 2009): 257–60. http://dx.doi.org/10.4028/www.scientific.net/kem.419-420.257.

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. Modular design technology is one of the ways to realize the product variety. It has been widely used in increasing fields. Module partition which has been the hot spot in and around the world is the key part of modular technology. In this paper, the combination of system clustering and the fuzzy ISODATA algorithm is used to achieve the rough-to-fine division according to the principles of module partition. Finally, the automobile security system has been taken as a case to justify the validity of the method and the result of the division accorded with the function of it.

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22

Hjort, Karin, and Rolf Bernander. "Changes in Cell Size and DNA Content inSulfolobus Cultures during Dilution and Temperature Shift Experiments." Journal of Bacteriology 181, no. 18 (September 15, 1999): 5669–75. http://dx.doi.org/10.1128/jb.181.18.5669-5675.1999.

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ABSTRACT Stationary-phase cultures of different hyperthermophilic species of the archaeal genus Sulfolobus were diluted into fresh growth medium and analyzed by flow cytometry and phase-fluorescence microscopy. After dilution, cellular growth started rapidly but no nucleoid partition, cell division, or chromosome replication took place until the cells had been increasing in size for several hours. Initiation of chromosome replication required that the cells first go through partition and cell division, revealing a strong interdependence between these key cell cycle events. The time points at which nucleoid partition, division, and replication occurred after the dilution were used to estimate the relative lengths of the cell cycle periods. When exponentially growing cultures were diluted into fresh growth medium, there was an unexpected transient inhibition of growth and cell division, showing that the cultures did not maintain balanced growth. Furthermore, when cultures growing at 79°C were shifted to room temperature or to ice-water baths, the cells were found to “freeze” in mid-growth. After a shift back to 79°C, growth, replication, and division rapidly resumed and the mode and kinetics of the resumption differed depending upon the nature and length of the shifts. Dilution of stationary-phase cultures provides a simple protocol for the generation of partially synchronized populations that may be used to study cell cycle-specific events.

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23

Barbanel, Julius. "Partition ratios, Pareto optimal cake division, and related notions." Journal of Mathematical Economics 32, no. 4 (December 1999): 401–28. http://dx.doi.org/10.1016/s0304-4068(98)00064-0.

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24

Bhatti, Muhammad Nawaz. "Politics of Water Resource Management in the Indus River Basin: A Study of the Partition of Punjab." Liberal Arts and Social Sciences International Journal (LASSIJ) 4, no. 2 (November 14, 2020): 60–70. http://dx.doi.org/10.47264/idea.lassij/4.2.6.

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The British Government of India divided the Muslim majority province of Punjab into Eastern and Western Punjab. But the partition line was drawn in a manner that headworks remained in India and irrigated land in Pakistan. The partition of Punjab was not scheduled in the original plan of the division of India. Why was it partitioned? To answer this question, the study in the first instance tries to explore circumstances, reasons, and conspiracies which led to the partition of Punjab which led to the division of the canal irrigation system and secondly, the impact of partition on water resource management in the Indus River Basin. Descriptive, historical, and analytical methods of research have been used to draw a conclusion. The study highlights the mindset of Indian National Congress to cripple down the newly emerging state of Pakistan that became a root cause of the partition of Punjab. The paper also highlights why India stopped water flowing into Pakistan on 1st April 1948 and the analysis also covers details about the agreement of 4th May 1948 and its consequences for Pakistan.

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Wang, Xuan, Nhung Le, Annina Denoth-Lippuner, Yves Barral, and Ruth Kroschewski. "Asymmetric partitioning of transfected DNA during mammalian cell division." Proceedings of the National Academy of Sciences 113, no. 26 (June 13, 2016): 7177–82. http://dx.doi.org/10.1073/pnas.1606091113.

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Foreign DNA molecules and chromosomal fragments are generally eliminated from proliferating cells, but we know little about how mammalian cells prevent their propagation. Here, we show that dividing human and canine cells partition transfected plasmid DNA asymmetrically, preferentially into the daughter cell harboring the young centrosome. Independently of how they entered the cell, most plasmids clustered in the cytoplasm. Unlike polystyrene beads of similar size, these clusters remained relatively immobile and physically associated to endoplasmic reticulum-derived membranes, as revealed by live cell and electron microscopy imaging. At entry of mitosis, most clusters localized near the centrosomes. As the two centrosomes split to assemble the bipolar spindle, predominantly the old centrosome migrated away, biasing the partition of the plasmid cluster toward the young centrosome. Down-regulation of the centrosomal proteins Ninein and adenomatous polyposis coli abolished this bias. Thus, we suggest that DNA clustering, cluster immobilization through association to the endoplasmic reticulum membrane, initial proximity between the cluster and centrosomes, and subsequent differential behavior of the two centrosomes together bias the partition of plasmid DNA during mitosis. This process leads to their progressive elimination from the proliferating population and might apply to any kind of foreign DNA molecule in mammalian cells. Furthermore, the functional difference of the centrosomes might also promote the asymmetric partitioning of other cellular components in other mammalian and possibly stem cells.

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26

Li, Jun, and Tang Tang Xie. "Study on Partition Testing Based on Software Models." Applied Mechanics and Materials 513-517 (February 2014): 1793–96. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.1793.

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Software test is a reliable technological means of guaranteeing software quality. General testing methods divide testing input values into a number of sectors according to certain rules, and then they choose a figure from each sector as testing data. However, if inappropriately divided, the probability of at least one error is lower than that of random testing which uses the equivalent number of cases. In light of the problem, the article puts forward a measurement method of describing ideal testing division via testing interdependency. By means of reasonable testing division, the testing effect on software models can get improved.

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27

Kriesi, Hanspeter. "IL CAMBIAMENTO DEICLEAVAGESPOLITICI IN EUROPA." Italian Political Science Review/Rivista Italiana di Scienza Politica 28, no. 1 (April 1998): 55–80. http://dx.doi.org/10.1017/s0048840200025752.

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IntroduzioneIn questo lavoro discuterò un aspetto dell'opera di Stein Rokkan che ha prodotto un'ondata di recenti pubblicazioni e di cui io stesso mi sono occupato. Mi riferisco al ruolo deicleavagesnella politica dell'Europa occidentale contemporanea. Le principali argomentazioni del grande scienziato politico norvegese sulle strutture di conflitto nelle società dell'Europa occidentale e sulla loro trasposizione in sistemi partitici sono state proposte nel famoso saggioCleavage Structures, Party Systems, and Voting Alignmentsche Rokkan scrisse con Seymour M. Lipset (Lipset e Rokkan 1967). La sua idea consisteva nel collegare le configurazioni dei sistemi partitici europei contemporanei alle divisioni sociali e culturali che caratterizzavano le società europee all'epoca della formazione dei sistemi partitici, nella seconda metà del diciannovesimo secolo. Quando emerse la politica democratica, queste divisioni tradizionali opponevano principalmente gruppi sociali definiti in termini di religione, classe, unità territoriale ed etnia. Come è noto, Lipset e Rokkan sostennero che queste divisioni tradizionali erano state politicamente «congelate» e che, all'epoca in cui scrivevano (1967), i sistemi partitici europei riflettevano ancora la struttura delle divisioni della società che era esistita nei primi anni '20, quando le masse popolari avevano fatto il loro ingresso nella politica democratica.

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Cai, Z. M. "Network community partition based on intelligent clustering algorithm." Computer Optics 44, no. 6 (December 2020): 985–89. http://dx.doi.org/10.18287/2412-6179-co-724.

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The division of network community is an important part of network research. Based on the clustering algorithm, this study analyzed the partition method of network community. Firstly, the classic Louvain clustering algorithm was introduced, and then it was improved based on the node similarity to get better partition results. Finally, experiments were carried out on the random network and the real network. The results showed that the improved clustering algorithm was faster than GN and KL algorithms, the community had larger modularity, and the purity was closer to 1. The experimental results show the effectiveness of the proposed method and make some contributions to the reliable community division.

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Hert, Susan, and Vladimir Lumelsky. "Polygon Area Decomposition for Multiple-Robot Workspace Division." International Journal of Computational Geometry & Applications 08, no. 04 (August 1998): 437–66. http://dx.doi.org/10.1142/s0218195998000230.

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A new polygon decomposition problem, the anchored area partition problem, which has applications to a multiple-robot terrain-covering problem is presented. This problem concerns dividing a given polygon P into n polygonal pieces, each of a specified area and each containing a certain point (site) on its boundary or in its interior. First the algorithm for the case when P is convex and contains no holes is presented. Then the generalized version that handles nonconvex and nonsimply connected polygons is presented. The algorithm uses sweep-line and divide-and-conquer techniques to construct the polygon partition. The input polygon P is assumed to have been divided into a set of p convex pieces (p = 1 when P is convex), which can be done in O(vP log log vP) time, where vP is the number of vertices of P and p = O(vP), using algorithms presented elsewhere in the literature. Assuming this convex decomposition, the running time of the algorithm presented here is O(pn2+vn), where v is the sum of the number of vertices of the convex pieces.

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Walczak, Jakub, Tadeusz Poreda, and Adam Wojciechowski. "Effective Planar Cluster Detection in Point Clouds Using Histogram-Driven Kd-Like Partition and Shifted Mahalanobis Distance Based Regression." Remote Sensing 11, no. 21 (October 23, 2019): 2465. http://dx.doi.org/10.3390/rs11212465.

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Point cloud segmentation for planar surface detection is a valid problem of automatic laser scans analysis. It is widely exploited for many industrial remote sensing tasks, such as LIDAR city scanning, creating inventories of buildings, or object reconstruction. Many current methods rely on robustly calculated covariance and centroid for plane model estimation or global energy optimization. This is coupled with point cloud division strategies, based on uniform or regular space subdivision. These approaches result in many redundant divisions, plane maladjustments caused by outliers, and excessive number of processing iterations. In this paper, a new robust method of point clouds segmentation, based on histogram-driven hierarchical space division, inspired by kd-tree is presented. The proposed partition method produces results with a smaller oversegmentation rate. Moreover, state-of-the-art partitions often lead to nodes of low cardinality, which results in the rejection of many points. In the proposed method, the point rejection rate was reduced. Point cloud subdivision is followed by resilient plane estimation, using Mahalanobis distance with respect to seven cardinal points. These points were established based on eigenvectors of the covariance matrix of the considered point cluster. The proposed method shows high robustness and yields good quality metrics, much faster than a FAST-MCD approach. The overall results indicate improvements in terms of plane precision, plane recall, under-, and the over- segmentation rate with respect to the reference benchmark methods. Plane precision for the S3DIS dataset increased on average by 2.6pp and plane recall- by 3pp. Both over- and under- segmentation rates fell by 3.2pp and 4.3pp.

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Wu, Qiang, Haiyan Shi, and Liping Xie. "Granular Partition and Concept Lattice Division Based on Quotient Space." Computing and Informatics 37, no. 5 (2018): 1103–25. http://dx.doi.org/10.4149/cai_2018_5_1103.

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Fan, Degui. "The Stress Analysis of a Cylinder With a Partition Plate Subjected to Internal Pressure." Journal of Pressure Vessel Technology 115, no. 3 (August 1, 1993): 330–33. http://dx.doi.org/10.1115/1.2929537.

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This paper presents a method to calculate stresses of a cylinder with a partition plate, whose equations for determining bending stresses of a cylinder and its partition plate are different (less conservative) from those in ASME Boiler and Pressure Vessel Code, Section VIII, Division 1. The paper contains: 1) the derivation of equations for calculating bending stresses of a cylinder and its partition plate; 2) the comparisons between the method in ASME Code VIII-1 and the author’s method, and commentary on the equations for determining bending stresses of a cylinder and its partition plate in ASME Code VIII-1. Also, the recommendation to modify the equations for determining bending stresses of a cylinder and its partition plate in ASME Code VIII-1 has been put forward.

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Huang, Rongsheng, and Jinzhi Lei. "Dynamics of gene expression with positive feedback to histone modifications at bivalent domains." International Journal of Modern Physics B 32, no. 07 (March 5, 2018): 1850075. http://dx.doi.org/10.1142/s0217979218500753.

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Experiments have shown that in embryonic stem cells, the promoters of many lineage-control genes contain “bivalent domains”, within which the nucleosomes possess both active (H3K4me3) and repressive (H3K27me3) marks. Such bivalent modifications play important roles in maintaining pluripotency in embryonic stem cells. Here, to investigate gene expression dynamics when there are regulations in bivalent histone modifications and random partition in cell divisions, we study how positive feedback to histone methylation/demethylation controls the transition dynamics of the histone modification patterns along with cell cycles. We constructed a computational model that includes dynamics of histone marks, three-stage chromatin state transitions, transcription and translation, feedbacks from protein product to enzymes to regulate the addition and removal of histone marks, and the inheritance of nucleosome state between cell cycles. The model reveals how dynamics of both nucleosome state transition and gene expression are dependent on the enzyme activities and feedback regulations. Results show that the combination of stochastic histone modification at each cell division and the deterministic feedback regulation work together to adjust the dynamics of chromatin state transition in stem cell regenerations.

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Møller-Jensen, Jakob, and Kenn Gerdes. "Plasmid segregation: spatial awareness at the molecular level." Journal of Cell Biology 179, no. 5 (November 26, 2007): 813–15. http://dx.doi.org/10.1083/jcb.200710192.

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In bacteria, low-copy number plasmids ensure their stable inheritance by partition loci (par), which actively distribute plasmid replicates to each side of the cell division plane. Using time-lapse fluorescence microscopic tracking of segregating plasmid molecules, a new study provides novel insight into the workings of the par system from Escherichia coli plasmid R1. Despite its relative simplicity, the plasmid partition spindle shares characteristics with the mitotic machinery of eukaryotic cells.

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Lan, Huihui, and Xianyu Wu. "Research on Key Technology of Signal Control Subarea Partition Based on Correlation Degree Analysis." Mathematical Problems in Engineering 2020 (March 16, 2020): 1–12. http://dx.doi.org/10.1155/2020/1879503.

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In order to accurately divide the traffic control subarea and improve the regional coordination control effect, this paper studies the key technologies of traffic control subarea division from the influence of the discrete characteristics of the fleet on the coordinated control. Correlation analysis method and regression analysis method are used to construct the correlation model of adjacent intersections. The principle and process of transportation subarea division are designed by using analytic hierarchy process, and a new traffic subarea division model is proposed. Taking Gulou Street in Miyun District of Beijing as an example, combined with the green wave coordination optimization method, the new model was applied and simulated in SimTraffic. The simulation results show that the average delay of the intersection is reduced by 21.4%, the total number of stops is reduced by 9.62%, and the travel time is shortened by 8.75%. The new intersection degree model and the coordinated control scheme obtained by the traffic subarea division model make the highest traffic efficiency. That is, to verify the scientific research method of this paper, the research results are reliable and the practical application value is high.

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Farquharson, J. "'The Essential Division'. Britain and the Partition of Germany 1945-9." German History 9, no. 1 (January 1, 1991): 23–45. http://dx.doi.org/10.1093/gh/9.1.23.

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Macieira-Coelho, A. "Effect of 3 H Decays on DNA Partition during Cell Division." Radiation Research 137, no. 1 (January 1994): 111. http://dx.doi.org/10.2307/3578798.

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Chen, H., and R. Han. "F-actin participates in the process of the “partition-bundle division”." Russian Journal of Plant Physiology 62, no. 2 (February 15, 2015): 187–94. http://dx.doi.org/10.1134/s102144371502003x.

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Chen, H., and R. Han. "F-Actin Participates in the Process of the “Partition-Bundle Division”." Физиология растений 62, no. 2 (2015): 204–11. http://dx.doi.org/10.7868/s0015330315020037.

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Farquharson, J. "'The Essential Division'. Britain and the Partition of Germany 1945-9." German History 9, no. 1 (February 1, 1991): 23–45. http://dx.doi.org/10.1177/026635549100900102.

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Kaur, R. "The Partition of Memory: The Afterlife of the Division of India." Journal of Refugee Studies 15, no. 3 (September 1, 2002): 329–31. http://dx.doi.org/10.1093/jrs/15.3.329.

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Zou, Wen Jie, Jian Cheng Weng, Jian Rong, and Wei Zhou. "Spatial Analysis Based Urban Road Network Partition Method for Macroscopic Evaluation." Applied Mechanics and Materials 97-98 (September 2011): 512–17. http://dx.doi.org/10.4028/www.scientific.net/amm.97-98.512.

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In order to improve the reliability of urban road network operation evaluation, the road network regional Partition methods were launched in this paper. The geographic grid was introduced first, and a 4-level road network model was defined. Then, the spatial analysis based urban road network division method was proposed by analyzing the characteristics of road network operation. This method can reflect the influence between adjacent regional units, and improve the reliability of urban road network division. Finally, this research took a certain area in Beijing as a case study, and divided the road network as several regional units. Macroscopic evaluation result shows that it is effective for scientifically describing the road network operation status.

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Wang, Jian, and Yang Cao. "Operating Time Division for a Bus Route Based on the Recovery of GPS Data." Journal of Sensors 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/1321237.

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Bus travel time is an important source of data for time of day partition of the bus route. However, in practice, a bus driver may deliberately speed up or slow down on route so as to follow the predetermined timetable. The raw GPS data collected by the GPS device equipped on the bus, as a result, cannot reflect its real operating conditions. To address this concern, this study first develops a method to identify whether there is deliberate speed-up or slow-down movement of a bus. Building upon the relationships between the intersection delay, link travel time, and traffic flow, a recovery method is established for calculating the real bus travel time. Using the dwell time at each stop and the recovered travel time between each of them as the division indexes, a sequential clustering-based time of day partition method is proposed. The effectiveness of the developed method is demonstrated using the data of bus route 63 in Harbin, China. Results show that the partition method can help bus enterprises to design reasonable time of day intervals and significantly improve their level of service.

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Guo, Dan. "Application of Decision Tree Algorithm in Lumber Hierarchies." Advanced Materials Research 466-467 (February 2012): 308–13. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.308.

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The decision tree algorithm is a kind of approximate discrete function value method with high precision, construction model of classification of noise data is simple and has good robustness etc, it is currently the most widely used in one of the inductive reasoning algorithms in data mining, extensive attention by researchers. This paper selects the decision tree ID3 algorithm to realize the standardization of lumber level division, to ensure the accuracy of the lumber division, while improving the partition of speed.

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SINANOGLOU, PENNY. "BRITISH PLANS FOR THE PARTITION OF PALESTINE, 1929–1938." Historical Journal 52, no. 1 (February 27, 2009): 131–52. http://dx.doi.org/10.1017/s0018246x08007346.

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ABSTRACTThe 1937 Peel Commission proposal for the partition of British mandatory Palestine has generally been framed as the precursor to the United Nations partition plan of 1947. This article demonstrates the importance of tracing the roots of the 1937 Peel Commission plan back to conversations taking place in the Colonial Office and government of Palestine as early as 1929. A close analysis of dialogues over territorial division and of preliminary partition plans, particularly those drawn up by L. G. Archer Cust and D. G. Harris, leads to the conclusion that Britain's focus on the ideal of representative government played a primary role in the development of partition proposals. This article argues that inter-ethnic violence played a much smaller role in the development of partition proposals than has previously been thought. Instead, partition was proposed as a solution to the political implications of non-representative government in Palestine, a topic constantly in the spotlight thanks to the League of Nations.

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Lemay-Hébert, Nicolas. "Multiethnicité ou ghettoïsation ?" Études internationales 43, no. 1 (May 14, 2012): 27–47. http://dx.doi.org/10.7202/1009138ar.

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Plus de vingt ans après la chute historique du mur de Berlin, plusieurs villes demeurent divisées par des murs et des barrières qui imposent une division spatiale et, bien souvent, politique du territoire. Cette contribution entend revenir sur la question de la partition de la ville de Mitrovica au Kosovo depuis l’intervention de l’otanen 1999, partition emblématique d’une partition plus large du territoire en deux entités distinctes. Le projet de mur proposé par l’otanà Mitrovica en 2001 reprend tout le paradoxe de la présence internationale sur le territoire : la politique internationale dite de la promotion d’une multiethnicité kosovare s’est révélée être en fait une politique de ghettoïsation progressive des diverses communautés, renforçant le repli identitaire qu’elle était censée combattre.

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Cheng, Xiao Min, Zhu Mei, Jian Yu Shen, and Meng Liu. "Blocking Partition Manufacturing of Complex Parts." Advanced Materials Research 156-157 (October 2010): 1505–8. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.1505.

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The manufacture of complex components was always the difficult point in manufacturing field. According to superposition principle, the manufacture of complex components could accomplish by geometry division, machining and assembling. A complex component was divided into several simple portions based on its geometry characteristics, to ensure relative position among each subassembly, the unilateral centricity method was adopted to fix the reference point, anchor surface and anchor sign and to complete the design of anchor structure. As soon as the design of assembly structure was completed, the NC processes were generated and the assembly structure would be scrabbled up immediately. In the end, an instance of profile bracket of human’s ear gave credence to the feasibility of manufacture of complex components by segmental manufacturing.

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He, Junhui, Junxi Chen, Shichang Xiao, Xiaoyu Huang, and Shaohua Tang. "A Novel AMR-WB Speech Steganography Based on Diameter-Neighbor Codebook Partition." Security and Communication Networks 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/7080673.

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Steganography is a means of covert communication without revealing the occurrence and the real purpose of communication. The adaptive multirate wideband (AMR-WB) is a widely adapted format in mobile handsets and is also the recommended speech codec for VoLTE. In this paper, a novel AMR-WB speech steganography is proposed based on diameter-neighbor codebook partition algorithm. Different embedding capacity may be achieved by adjusting the iterative parameters during codebook division. The experimental results prove that the presented AMR-WB steganography may provide higher and flexible embedding capacity without inducing perceptible distortion compared with the state-of-the-art methods. With 48 iterations of cluster merging, twice the embedding capacity of complementary-neighbor-vertices-based embedding method may be obtained with a decrease of only around 2% in speech quality and much the same undetectability. Moreover, both the quality of stego speech and the security regarding statistical steganalysis are better than the recent speech steganography based on neighbor-index-division codebook partition.

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Ren Yu, 任宇, 邱昆 Qiu Kun, 凌云 Ling Yun, and 黄金 Huang Jin. "Wavelength Division Multiplexing Subnet Partition Based on Clustering Algorithm in Multidimensional Space." Acta Optica Sinica 33, no. 2 (2013): 0206001. http://dx.doi.org/10.3788/aos201333.0206001.

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Brugerolle, Guy. "Flagellar apparatus duplication and partition, flagellar transformation during division in Entosiphon sulcatum." Biosystems 28, no. 1-3 (January 1992): 203–9. http://dx.doi.org/10.1016/0303-2647(92)90021-p.

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