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Journal articles on the topic 'Irreducible pattern'

Author: Grafiati

Published: 3 June 2025

Last updated: 20 July 2025

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1

Stuart, Jeffrey L., LeRoy Beasley, and Bryan Shader. "Irreducible, pattern k-potent ray pattern matrices." Linear Algebra and its Applications 346, no. 1-3 (2002): 261–71. http://dx.doi.org/10.1016/s0024-3795(01)00541-9.

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2

Li, Zhongshan, Frank J. Hall, and Jeffrey L. Stuart. "Irreducible powerful ray pattern matrices." Linear Algebra and its Applications 342, no. 1-3 (2002): 47–58. http://dx.doi.org/10.1016/s0024-3795(01)00436-0.

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3

Cavers, Michael, Jonathan Fischer, and Kevin N. Vander Meulen. "Spectral Properties of Sign Patterns." Electronic Journal of Linear Algebra 36, no. 36 (2020): 183–97. http://dx.doi.org/10.13001/ela.2020.5057.

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In this paper, an infinite family of irreducible sign patterns that are spectrally arbitrary, for which the nilpotent-Jacobian method does not apply, is given. It is demonstrated that it is possible for an irreducible sign pattern to be refined inertially arbitrary and not spectrally arbitrary. It is observed that not every nonzero spectrally arbitrary pattern has a signing which is spectrally arbitrary. It is also shown that every superpattern of the reducible pattern $\T_2 \oplus \T_2$ is spectrally arbitrary.

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Cho, Han Hyuk, Jong Sam Jeon, and Hwa Kyung Kim. "Periodic, irreducible, powerful ray pattern matrices." Linear Algebra and its Applications 404 (July 2005): 283–96. http://dx.doi.org/10.1016/j.laa.2005.02.019.

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5

Stuart, Jeffrey, Carolyn Eschenbach, and Steve Kirkland. "Irreducible sign k-potent sign pattern matrices." Linear Algebra and its Applications 294, no. 1-3 (1999): 85–92. http://dx.doi.org/10.1016/s0024-3795(99)00076-2.

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6

Le, Tung. "Supercharacters and pattern subgroups in the upper triangular groups." Proceedings of the Edinburgh Mathematical Society 56, no. 1 (2012): 177–86. http://dx.doi.org/10.1017/s0013091512000156.

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AbstractLet Un(q) denote the upper triangular group of degree n over the finite field $\mathbb{F}_q$ with q elements. It is known that irreducible constituents of supercharacters partition the set of all irreducible characters Irr(Un(q)). In this paper we present a correspondence between supercharacters and pattern subgroups of the form Uk(q) ∩ wUk(q), where w is a monomial matrix in GLk(q) for some k < n.

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SCHADEN, MARTIN. "IRREDUCIBLE SCALAR MANY-BODY CASIMIR ENERGIES: THEOREMS AND NUMERICAL STUDIES." International Journal of Modern Physics: Conference Series 14 (January 2012): 501–10. http://dx.doi.org/10.1142/s2010194512007635.

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We define irreducible N-body spectral functions and Casimir energies and consider a massless scalar quantum field interacting locally by positive potentials with classical objects. Irreducible N-body spectral functions in this case are shown to be conditional probabilities of random walks. The corresponding irreducible contributions to scalar many-body Casimir energies are finite and positive/negative for an odd/even number of objects. The force between any two finite objects separable by a plane is always attractive in this case. Analytical and numerical world-line results for the irreducible

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8

Pelejo, Diane Christine, and Jean Leonardo Abagat. "On Sign Pattern Matrices that Allow or Require Algebraic Positivity." Electronic Journal of Linear Algebra 35 (February 1, 2019): 331–56. http://dx.doi.org/10.13001/1081-3810.3862.

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A square matrix M with real entries is algebraically positive (AP) if there exists a real polynomial p such that all entries of the matrix p(M) are positive. A square sign pattern matrix S allows algebraic positivity if there is an algebraically positive matrix M whose sign pattern is S. On the other hand, S requires algebraic positivity if matrix M, having sign pattern S, is algebraically positive. Motivated by open problems raised in a work of Kirkland, Qiao, and Zhan (2016) on AP matrices, all nonequivalent irreducible 3 by 3 sign pattern matrices are listed and classify into three groups (

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9

Kagaris, Dimitri, Rajesh Aakuthota, and Anila Verma. "Maximum sequence test pattern generators with irreducible characteristic polynomials." Microprocessors and Microsystems 30, no. 2 (2006): 117–23. http://dx.doi.org/10.1016/j.micpro.2005.05.002.

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10

Piza-Davila, Ivan, Guillermo Sanchez-Diaz, Manuel S. Lazo-Cortes, and Cristina Noyola-Medrano. "Enhancing the Performance of YYC Algorithm Useful to Generate Irreducible Testors." International Journal of Pattern Recognition and Artificial Intelligence 32, no. 01 (2017): 1860001. http://dx.doi.org/10.1142/s0218001418600017.

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In pattern recognition, irreducible testors have been used for feature selection. A number of exhaustive algorithms that find irreducible testors have been reported in the literature. One of the latest and more efficient algorithms reported is YYC, an incremental algorithm that finds all the irreducible testors from a training matrix. Its efficiency relies on building a smaller number of feature combinations by finding compatible sets from the top of the matrix to the current row. Nevertheless, as the number of sets currently found grows, YYC execution becomes too slow. This work proposes two

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AL QATTAN, M. M., F. HASHEM, and A. HELMI. "Irreducible Tuft Fractures of the Distal Phalanx." Journal of Hand Surgery 28, no. 1 (2003): 18–20. http://dx.doi.org/10.1054/jhsb.2002.0814.

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Two tuft fractures of the distal phalanx had a unique fracture pattern with significant displacement of the proximal fracture fragment into the pulp of the finger. Both fractures were irreducible by closed means, probably due to entrapment of bony spikes within the fibrous septa of the pulp or overlapping of the proximal and distal fracture fragments.

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12

You, Lihua, Jiayu Shao, and Haiying Shan. "Bounds on the bases of irreducible generalized sign pattern matrices." Linear Algebra and its Applications 427, no. 2-3 (2007): 285–300. http://dx.doi.org/10.1016/j.laa.2007.07.019.

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13

Mortier, Thierry. "Triangle or tripod? Neither: A diagrammatic investigation into a sign’s visual representation." Sign Systems Studies 52, no. 1-2 (2024): 88–132. http://dx.doi.org/10.12697/sss.2024.52.1-2.04.

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This paper takes a look at the morphological structure of the two dominant diagrams (the triangle and the tripod) used in semiotic literature to represent the irreducible triadic sign of C. S. Peirce in order to evaluate their diagrammatic aptitude, i.e. allowing of deductive discoveries. Concluding that neither fully translates the properties attributed to the irreducible triadic sign on a visual level, an alternative diagram is proposed. This is a visual representation of the irreducible triadic sign that is directly connected with other fields of research, such as mathematics, but also with

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14

Li, Xin, Ming-Wen Shao, and Xing-Min Zhao. "Constructing lattice based on irreducible concepts." International Journal of Machine Learning and Cybernetics 8, no. 1 (2016): 109–22. http://dx.doi.org/10.1007/s13042-016-0587-y.

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15

Escandell-Vidal, Victoria, and Elena Vilinbakhova. "Coordinated tautologies in Spanish and Russian." Intercultural Pragmatics 15, no. 3 (2018): 315–48. http://dx.doi.org/10.1515/ip-2018-0009.

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Abstract This paper examines a special pattern of tautological constructions – a is a and b is b – in Spanish and Russian. The phenomenon was first described by A. Wierzbicka, who cited Rudyard Kipling’s “East is East and West and West,” referring to it as “double tautologies” with the associated meaning of “irreducible difference.” Later, J. Meibauer called this pattern “coordinated tautologies” (CT) and suggested that they carry the implicature that “the referents of the respective subject NPs should be kept distinct, should not be confused, etc.” In the present study, we address the issue o

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16

Berliner, Adam, Dale Olesky, and Pauline Van den Driessche. "Inertia sets allowed by matrix patterns." Electronic Journal of Linear Algebra 34 (February 21, 2018): 343–55. http://dx.doi.org/10.13001/1081-3810.3647.

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Motivated by the possible onset of instability in dynamical systems associated with a zero eigenvalue, sets of inertias $\sn_n$ and $\SN{n}$ for sign and zero-nonzero patterns, respectively, are introduced. For an $n\times n$ sign pattern $\mc{A}$ that allows inertia $(0,n-1,1)$, a sufficient condition is given for $\mc{A}$ and every superpattern of $\mc{A}$ to allow $\sn_n$, and a family of such irreducible sign patterns for all $n\geq 3$ is specified. All zero-nonzero patterns (up to equivalence) that allow $\SN{3}$ and $\SN{4}$ are determined, and are described by their associated digraphs.

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17

Hu, Sun-jun, Shi-Min Chang, Shou-chao Du, Li-zhi Zhang, and Wen-feng Xiong. "Two-Part Intertrochanteric Femur Fractures with Bisection of the Lesser Trochanter: An Irreducible Fracture Pattern." Geriatric Orthopaedic Surgery & Rehabilitation 14 (January 22, 2023): 215145932311538. http://dx.doi.org/10.1177/21514593231153827.

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Objective To introduce the clinical features of and surgical techniques for a rare type of irreducible pertrochanteric femur fracture pattern with bisection of the lesser trochanter. Methods From January 2017 to December 2019, 357 patients with per/intertrochanteric femur fractures underwent surgery by closed reduction and internal fixation, of whom 12 patients were identified with rare preoperative imaging features, the lesser trochanter was almost equally bisected. The main fracture pathoanatomy of these cases included: The anterior fracture line passed along the intertrochanteric line to th

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18

PAVLOV, RONNIE. "Perturbations of multidimensional shifts of finite type." Ergodic Theory and Dynamical Systems 31, no. 2 (2010): 483–526. http://dx.doi.org/10.1017/s0143385710000040.

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AbstractIn this paper, we study perturbations of multidimensional shifts of finite type. Specifically, for any ℤd shift of finite type X with d>1 and any finite pattern w in the language of X, we denote by Xw the set of elements of X not containing w. For strongly irreducible X and patterns w with shape a d-dimensional cube, we obtain upper and lower bounds on htop (X)−htop (Xw) dependent on the size of w. This extends a result of Lind for d=1 . We also apply our methods to an undecidability question in ℤd symbolic dynamics.

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19

Djukova, E. V., and A. S. Inyakin. "Constructing irreducible coverings of a Boolean matrix." Pattern Recognition and Image Analysis 17, no. 3 (2007): 357–62. http://dx.doi.org/10.1134/s1054661807030029.

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20

Huang, Yufei, and Bolian Liu. "The index of maximum ambiguous density for irreducible non-powerful sign pattern matrices." European Journal of Combinatorics 31, no. 1 (2010): 230–40. http://dx.doi.org/10.1016/j.ejc.2009.03.039.

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21

Howard, Christopher J., and Harold T. Stokes. "Octahedral tilting in cation-ordered perovskites – a group-theoretical analysis." Acta Crystallographica Section B Structural Science 60, no. 6 (2004): 674–84. http://dx.doi.org/10.1107/s0108768104019901.

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Group-theoretical methods are used to enumerate the structures of ordered perovskites, in which 1:2 and 1:3 ordering of B and B′ cations is considered in combination with the ubiquitous BX 6 (or B′X 6) octahedral tilting. The cation ordering on the B-cation site is described by irreducible representations of the Pm\bar 3m space group of the cubic aristotype: Λ1 ( k = 1/3,1/3,1/3) for the cation ordering pattern in the 1:2 compound A 3 BB_2^{\prime}X 9 and M_1^ + ( k = 1/2,1/2,0) for the cation ordering in the 1:3 compound A 4 BB_3^{\prime}X 12. The octahedral tilting is mediated by the irreduc

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22

Wells, Christopher D., Lawrence S. Jackson, Amanda C. Maycock, and Piers M. Forster. "Understanding pattern scaling errors across a range of emissions pathways." Earth System Dynamics 14, no. 4 (2023): 817–34. http://dx.doi.org/10.5194/esd-14-817-2023.

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Abstract. The regional climate impacts of hypothetical future emissions scenarios can be estimated by combining Earth system model simulations with a linear pattern scaling model such as MESMER (Modular Earth System Model Emulator with spatially Resolved output), which uses estimated patterns of the local response per degree of global temperature change. Here we use the mean trend component of MESMER to emulate the regional pattern of the surface temperature response based on historical single-forcer and future Shared Socioeconomic Pathway (SSP) CMIP6 (Coupled Model Intercomparison Project Pha

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23

Belo, Fernando. "A irredutibilidade metodológica entre Neurologia e Psicanálise." Phainomenon 16-17, no. 1 (2008): 211–20. http://dx.doi.org/10.2478/phainomenon-2008-0023.

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Abstract In this paper, the author tries to show that Neurology and Psychoanalysis are irreducible to a common methodological pattern. Emphasizing the biological, chemical and physical basis of Neurology, the author puts forward the case of dream, as a phenomenon only attainable through the psychoanalytical approach. The psychoanalytical access to dream is discussed at length, and questions like the relationship between awake and dream I are considered.

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24

Scalia-Tomba, Gianpaolo. "Asymptotic final size distribution of the multitype Reed–Frost process." Journal of Applied Probability 23, no. 3 (1986): 563–84. http://dx.doi.org/10.2307/3213998.

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The asymptotic final size distribution of a multitype Reed–Frost process, a chain-binomial model for the spread of an infectious disease in a finite, closed multitype population, is derived, as the total population size grows large. When all subgroups are of comparable size, the infection pattern irreducible and the epidemic started by a small number of initial infectives, the classical threshold behaviour is obtained, depending on the basic reproduction rate of the disease in the population, and the asymptotic distributions for small and large outbreaks can be found. The same techniques can t

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Scalia-Tomba, Gianpaolo. "Asymptotic final size distribution of the multitype Reed–Frost process." Journal of Applied Probability 23, no. 03 (1986): 563–84. http://dx.doi.org/10.1017/s0021900200111751.

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The asymptotic final size distribution of a multitype Reed–Frost process, a chain-binomial model for the spread of an infectious disease in a finite, closed multitype population, is derived, as the total population size grows large. When all subgroups are of comparable size, the infection pattern irreducible and the epidemic started by a small number of initial infectives, the classical threshold behaviour is obtained, depending on the basic reproduction rate of the disease in the population, and the asymptotic distributions for small and large outbreaks can be found. The same techniques can t

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26

JEAN, ROGER V. "A THEORY AND A MODEL FOR PATTERN GENERATION IN PLANTS." Journal of Biological Systems 01, no. 02 (1993): 159–86. http://dx.doi.org/10.1142/s0218339093000124.

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This article introduces a systemic theory of phyllotaxis (study of primordial patterns on plants) and updates a mathematical model which is central in the theory. The theory deals with the descriptive and the functional aspects of phyllotaxis, and studies the origins of patterns as well. The article concentrates on the formal aspects of the model and on its explanatory values. The model possesses biological foundations which will not be recalled here. It supposes a principle of optimal design and the representation of phyllotactic patterns with control hierarchies. These hierarchies can be gen

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27

PRASAD, DIPENDRA, and NILABH SANAT. "On the restriction of cuspidal representations to unipotent elements." Mathematical Proceedings of the Cambridge Philosophical Society 132, no. 1 (2002): 35–56. http://dx.doi.org/10.1017/s0305004101005527.

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Let G be a connected split reductive group defined over a finite field [ ]q, and G([ ]q) the group of [ ]q-rational points of G. For each maximal torus T of G defined over [ ]q and a complex linear character θ of T([ ]q), let RGT(θ) be the generalized representation of G([ ]q) defined in [DL]. It can be seen that the conjugacy classes in the Weyl group W of G are in one-to-one correspondence with the conjugacy classes of maximal tori defined over [ ]q in G ([C1, 3·3·3]). Let c be the Coxeter conjugacy class of W, and let Tc be the corresponding maximal torus. Then by [DL] we know that πθ = (−1

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28

Breen, Jane, Carraugh Brouwer, Minerva Catral, Michael Cavers, Pauline Van den Driessche, and Kevin N. Vander Meulen. "The allow sequence of distinct eigenvalues for a sign pattern." Electronic Journal of Linear Algebra 40 (January 23, 2024): 48–80. http://dx.doi.org/10.13001/ela.2024.7779.

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A sign pattern $\mathcal{A}$ is a matrix with entries in $\{+,-,0\}$. This article introduces the allow sequence of distinct eigenvalues for an $n\times n$ sign pattern $\mathcal{A}$, defined as $q_{\rm seq}(\mathcal{A})=\langle q_1,\ldots,q_n\rangle$, with $q_k=1$ if there exists a real matrix with exactly $k$ distinct eigenvalues having pattern $\mathcal{A}$, and $q_k=0$ otherwise. For example, $q_{\rm seq}(\mathcal{A})=\langle 0,\ldots,0,1\rangle$ is equivalent to $\mathcal{A}$ requiring all distinct eigenvalues, while $q_{\rm seq}(\mathcal{A})=\langle 1,0,\ldots,0\rangle$ is equivalent to

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29

Zyss, J., and S. Brasselet. "Multipolar Symmetry Patterns in Molecular Nonlinear Optics." Journal of Nonlinear Optical Physics & Materials 07, no. 03 (1998): 397–439. http://dx.doi.org/10.1142/s0218863598000302.

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Organic materials for quadratic nonlinear optics generally follow the basic pattern of strongly dipolar quasi one-dimensional intramolecular charge transfer molecules organized in macroscopic crystalline or statistical polar lattices. This restriction has been lifted by the introduction of the much broader class of multipolar materials whereby efficient two- and three-dimensional molecules can be fruitfully exploited in self assembled or externally engineered multipolar macroscopic structures. At the molecular level, polarized harmonic scattering permits to evaluate the invariant irreducible c

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30

Vitale, Francesco. "Let the Witness Speak: From Archi-writing to the Community to come." Derrida Today 2, no. 2 (2009): 260–70. http://dx.doi.org/10.3366/e175485000900058x.

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The paper aims to present a reading of the question of Testimony rising in Derrida's later works (from Faith and Knowledge to Poetics and Politics of Witnessing): the experience of Testimony as the irreducible condition of the relation to the Other, of every possible link among living human singularities and, thus, of the thinking of a community to come. This thinking is able to divert the community from the economy grounding and structuring it within our political tradition governed by the metaphysics of presence, which demands the sacrifice of the Other in its multiple theoretical and practi

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31

Jeon, Jong Sam, Judith J. McDonald, and Jeffrey L. Stuart. "The minimum upper bound on the first ambiguous power of an irreducible, nonpowerful ray or sign pattern." Linear Algebra and its Applications 435, no. 5 (2011): 1147–56. http://dx.doi.org/10.1016/j.laa.2011.02.036.

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32

Botez, C. E., P. W. Stephens, C. Nunes та R. Suryanarayanan. "Crystal structure of anhydrous δ-D-mannitol". Powder Diffraction 18, № 3 (2003): 214–18. http://dx.doi.org/10.1154/1.1582460.

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The crystal structure of anhydrous δ-D-mannitol (C6H14O6) was solved from high-resolution synchrotron X-ray powder diffraction data collected on a mixture containing 20% and 80% w/w of β- and δ-D-mannitol, respectively. The direct space simulated annealing program PSSP, and Rietveld analysis employing GSAS were used to determine and refine the structure. The polymorph has monoclinic symmetry, space group P21 with a=5.089 41(5) Å, b=18.2504(2) Å, c=4.917 02(5) Å, and β=118.303(2)°. There is one molecule in the irreducible volume of the unit cell. The pattern of hydrogen bonding is significantly

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FUSSY, SIEGFRIED, GERHARD GRÖSSING, and HERBERT SCHWABL. "FRACTAL EVOLUTION IN DETERMINISTIC AND RANDOM MODELS." International Journal of Bifurcation and Chaos 06, no. 11 (1996): 1977–95. http://dx.doi.org/10.1142/s0218127496001284.

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One-dimensional coupled map lattices or quantum cellular automata with any additionally implemented temporal feedback operations (involving some memory of the system’s states) and a normalization procedure after each time step exhibit a universal dynamic property called fractal evolution [Fussy & Grössing, 1994]. It is characterized by a power-law behavior of a system’s order parameter with regard to a resolution-like parameter which controls the deviation from an undisturbed (i.e., feedback-less) system’s evolution and provides a dynamically invariant measure for the emerging spatiotempor

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34

Duplinskya, Yuliya M., and Irina V. Steklova. "The question of the qualitative definiteness of the bit in the natural and artificial intelligence." Izvestiya of Saratov University. Philosophy. Psychology. Pedagogy 24, no. 1 (2024): 36–40. http://dx.doi.org/10.18500/1819-7671-2024-24-1-36-40.

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Introduction. Advances in digital technology lead to the tendency to adjust the modern education system under the algorithms of artificial intelligence. In this regard the special relevance is acquired by a research of those aspects of human thinking which are not amenable to modeling in artificial intelligence systems. Theoretical analysis. In the concepts of the XX–XXI centuries eidos is transformed into a dynamic pattern. Patterns, unlike eidos-forms of ancient philosophy, fix not a static, but a dynamic form of a reproducible motion configuration. Patterns, like Plato’s eidos, are indivisi

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Walther, A. "Irreducible aberrations of a lens used for a range of magnifications." Journal of the Optical Society of America A 6, no. 3 (1989): 415. http://dx.doi.org/10.1364/josaa.6.000415.

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36

Mendon-Plasek, Aaron. "Irreducible worlds of inexhaustible meaning: early 1950s machine learning as subjective decision making, creative imagining and remedy for the unforeseen." BJHS Themes 8 (2023): 65–80. http://dx.doi.org/10.1017/bjt.2023.12.

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AbstractLittle historical work examines the problems, practices and values of ‘machine learning’ as it was understood and justified within pattern recognition research communities prior to the 1980s. This omission has led to a failure to appreciate how the efficacy of machine learning was often justified by its perceived capacity for ‘originality’ rooted in machine (and human) subjectivity. This paper examines why and how early 1950s pattern recognition researchers came to see ‘machine learning’ as a technical and epistemological set of nominalist strategies for performing induction and abduct

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Layson, James T., Alan Afsari, Todd Peterson, David Knesek, and Benjamin Best. "A Fixed, Unreducible, Unstable Medial Swivel Dislocation of the Talonavicular Joint with Associated Navicular Fracture." Case Reports in Orthopedics 2021 (June 14, 2021): 1–5. http://dx.doi.org/10.1155/2021/9959830.

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A 32-year-old white male was on a second-story balcony when he fell off and landed on the cement below. With initial X-rays being read as negative on the radiology report due to the subtle nature of the injury, the patient was promptly diagnosed with a medial swivel dislocation by the orthopaedic team, which ended up being fixed, unstable, and irreducible. The patient also had acute skin compromise and needed to be taken to the operating room prior to progression of skin breakdown. This dislocation pattern is a rare variant, especially when paired with the fixed nature of the dislocation and t

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Saramago, M. J. "Optimal natural dualities: the role of endomorphisms." Journal of the Australian Mathematical Society 77, no. 2 (2004): 269–96. http://dx.doi.org/10.1017/s1446788700013628.

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AbstractThe optimality of dualities on a quasivariety , generated by a finite algebra , has been introduced by Davey and Priestley in the 1990s. Since every optimal duality is determined by a transversal of a certain family of subsets of Ω, where Ω is a given set of relations yielding a duality on , an understanding of the structures of these subsets—known as globally minimal failsets—was required. A complete description of globally minimal failsets which do not contain partial endomorphisms has recently been given by the author and H. A. Priestley. Here we are concerned with globally minimal

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Rangdal, Sushil, Vikas Bachhal, Saurabh Vashisht, and Mandeep Singh Dhillon. "Intra-articular dislocation of the patella: a rare variant to an uncommon injury." BMJ Case Reports 12, no. 4 (2019): e228098. http://dx.doi.org/10.1136/bcr-2018-228098.

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Horizontal intra-articular dislocation of the patella is a very rare traumatic entity. We present an unusual case of horizontal intra-articular dislocation in which the patellar articular surface was facing upwards besides having an avulsion of the quadriceps tendon from the superior pole. There was associated posterolateral knee subluxation, which has not been described with intra-articular dislocation of the patella. A 20-year-old man presented with open patellar dislocation and locked knee after a roadside accident. The patient was managed successfully by open reduction and repair of the qu

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Higginbotham, Devan O., and Andrew G. Tsai. "Proximal phalanx shaft fracture with entrapment in the transverse retinacular ligament: a case report." International Journal of Research in Orthopaedics 6, no. 4 (2020): 833. http://dx.doi.org/10.18203/issn.2455-4510.intjresorthop20202693.

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<p>We report the interesting case of a 33 years old male who underwent operative intervention for a left oblique proximal phalanx shaft fracture of the third finger which penetrated the transverse retinacular ligament (TRL). This patient required operative intervention due to entrapment of the bony fragment in the TRL which acted as a noose with traction on the fractured segment. The fracture was irreducible through a closed maneuver. The use of a dorsal approach allowed visualization of the fracture site and implementation of screws for fixation was deemed adequate secondary to the pati

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Howard, Christopher J., and Michael A. Carpenter. "Octahedral tilting in cation-ordered Jahn–Teller distorted perovskites – a group-theoretical analysis." Acta Crystallographica Section B Structural Science 66, no. 1 (2009): 40–50. http://dx.doi.org/10.1107/s0108768109048010.

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Computer-based group-theoretical methods are used to enumerate structures arising in A 2 BB′X 6 perovskites, with either rock-salt or checkerboard ordering of the B and B′ cations, under the additional assumption that one of these two cations is Jahn–Teller active and thereby induces a distortion of the BX 6 (or B′X 6) octahedron. The requirement to match the pattern of Jahn–Teller distortions to the cation ordering implies that the corresponding irreducible representations should be associated with the same point in the Brillouin zone. Effects of BX 6 (and B′X 6) octahedral tilting are includ

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42

Kahnert, Michael. "Irreducible representations of finite groups in the T-matrix formulation of the electromagnetic scattering problem." Journal of the Optical Society of America A 22, no. 6 (2005): 1187. http://dx.doi.org/10.1364/josaa.22.001187.

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Suárez, Eduardo, Rubén Dario Santiago-Acosta, and Renato Lemus. "Algebraic DVR Approaches Applied to Piecewise Potentials: Symmetry and Degeneracy." Symmetry 14, no. 3 (2022): 445. http://dx.doi.org/10.3390/sym14030445.

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Algebraic discrete variable representation (DVR) methods that have been recently proposed are applied to describe 1D and 2D piecewise potentials. First, it is shown that it is possible to use a DVR approach to describe 1D square well potentials testing the wave functions with exact results. Thereafter, Morse and Pöschl-Teller (PT) potentials are described with multistep piecewise potentials in order to explore the sensibility of the potential to reproduce the transition from a pure square well energy pattern to an anharmonic energy spectrum. Once the properties of the different algebraic DVR a

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Czesnik, Mikolaj, Marta Zerkowska-Balas, and Michal Kotnarowski. "Voting as a habit in new democracies – Evidence from Poland." Communist and Post-Communist Studies 46, no. 1 (2013): 95–107. http://dx.doi.org/10.1016/j.postcomstud.2012.12.014.

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Among the wide range of theories explaining why some people vote and others do not, one is recently gaining particular popularity. This is the theory of voting as a habit (e.g. Plutzer, 2002; Franklin, 2004; Hooghe, 2004). The empirical evidence supporting this theory covers onlyWestern democracies, so the following question might be asked: is this pattern universal? In the case of old democracies, voting is a habit acquired gradually in a process which starts at the moment of the very first election one can cast the ballot. In new democracies the situation is different, as we can pinpoint the

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Saucier, Gerard. "Is religiousness a form of variation in personality, or in culture, or neither? Conceptual issues and empirical indications." Archive for the Psychology of Religion 41, no. 3 (2019): 216–23. http://dx.doi.org/10.1177/0084672419894677.

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It has become widely recognized that religiousness has a predictable pattern of small associations with Big Five personality dimensions, and has some intersections with cultural psychology. But just how large are those culture-religiosity intersections, and are there additional associations with personality when one extends beyond the restricted spectrum represented by Big Five traits? Moreover, do the answers to these questions depend on how religiousness is defined and measured? I argue that, both conceptually and empirically, religiousness itself meets the criteria for a personality dimensi

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Lu, Cheng, Xuwen Qin, Lu Yu, et al. "The Characteristics of Gas-Water Two-Phase Radial Flow in Clay-Silt Sediment and Effects on Hydrate Production." Geofluids 2021 (May 11, 2021): 1–14. http://dx.doi.org/10.1155/2021/6623802.

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Many hydrate-bearing sediments in the Shenhu area of the South China Sea are featured with unconsolidated clayed silt, small particle size, and high content of clay, which can pose a great challenge for gas production. In order to investigate the gas-water relative permeability in clay-silt sediments, through a radial flow experiment, samples from the target sediment in the Shenhu area were selected and studied. The results show that the irreducible water saturation is high and the influence of the gas-water interaction is obvious. The relative permeability analysis shows that the two-phase fl

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Yang, Zhao, and Ziyu Zhou. "Simulation Study of Microscopic Seepage in Aquifer Reservoirs with Water–Gas Alternated Flooding." Energies 17, no. 16 (2024): 4149. http://dx.doi.org/10.3390/en17164149.

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Underground gas storage (UGS) is a beneficial economic method of compensating for the imbalance between natural gas supply and demand. This paper addresses the problem of a lack of research on the two-phase distribution pattern and seepage law during the water–gas alternated flooding in gas storage reservoirs. The study constructed a three-dimensional digital core of the aquifer reservoir based on Computed Tomography (CT) scanning technology, and extracted the connecting pore structure to establish the tetrahedral mesh model. A two-phase microscopic seepage model was established based on the V

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Roberts, Wade R., Adam M. Siepielski, and Andrew J. Alverson. "Diatom abundance in the polar oceans is predicted by genome size." PLOS Biology 22, no. 8 (2024): e3002733. http://dx.doi.org/10.1371/journal.pbio.3002733.

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A principal goal in ecology is to identify the determinants of species abundances in nature. Body size has emerged as a fundamental and repeatable predictor of abundance, with smaller organisms occurring in greater numbers than larger ones. A biogeographic component, known as Bergmann’s rule, describes the preponderance, across taxonomic groups, of larger-bodied organisms in colder areas. Although undeniably important, the extent to which body size is the key trait underlying these patterns is unclear. We explored these questions in diatoms, unicellular algae of global importance for their rol

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Singh, Harpreet, Evgeniy M. Myshakin, and Yongkoo Seol. "A Nonempirical Relative Permeability Model for Hydrate-Bearing Sediments." SPE Journal 24, no. 02 (2018): 547–62. http://dx.doi.org/10.2118/193996-pa.

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Summary There are currently two types of relative permeability models that are used to model gas production from hydrate-bearing sediments: fully empirical parameter-fitting models [such as the University of Tokyo model (Masuda et al. 1997) and the Brooks and Corey model (Brooks and Corey 1964)] and partially empirical models [such as the Kozeny and Carman model (Wyllie and Gardner 1958) and capillary-tube-based models that assume only a single phase]. This study proposes an analytical model to estimate relative permeability of gas and water in a hydrate-bearing porous medium without curve fit

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C.K., Faslu Rahman, Gokul Raj S., and Sharun Khan. "Surgical management of ileocolic intussusception in a German shepherd dog." Issue 1 (September - October) 1, no. 1 (2020): 57–62. http://dx.doi.org/10.51128/jfas.2020.a011.

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Intussusception occurs when excessive peristaltic motility forces one segment of the intestine into another slightly larger part of the intestine. The incidence of intussusception is more in German shepherd dogs. A six-month old German shepherd dog weighing 17 kg was presented with a history of anorexia, vomiting, diarrhoea, and lethargy for the past 7 days. Clinical examination revealed a congested conjunctival mucous membrane, bounding pulse and tachycardia. Abdominal palpation evinced pain and a bunch of coiled sausage shaped mass was identified during deep palpation. Abdominal ultrasonogra

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