Search results for "Backward"
showing 10 items of 81 documents
Playing with accents
2020
While certain ways of speaking or varieties of English – such as American English or British English – evoke associations of modernity, higher education and urbanity in Uganda, others – such as Ugandan English with strong northern or western accents – stand for backwardness, social strata remote from education and ‘village identities’. Yet concepts of backwardness or modernity are not only based on linguistic criteria but also associated with a specific worldview, contributing to complex signs of higher-order indexicality. In contrast, speakers’ practices of enregisterment reveal how fluid and contextual these indices of urbanity and rurality actually are. Considering diverse repertoires of…
"Table 1" of "Measurement of very forward energy and particle production at midrapidity in pp and p-Pb collisions at the LHC"
2022
Average signal on A-side vs. C-side ZN in pp collisions at 13 TeV
"Table 2" of "Measurement of very forward energy and particle production at midrapidity in pp and p-Pb collisions at the LHC"
2022
Average signal on A-side vs. C-side ZP in pp collisions at 13 TeV
Coupled conditional backward sampling particle filter
2020
The conditional particle filter (CPF) is a promising algorithm for general hidden Markov model smoothing. Empirical evidence suggests that the variant of CPF with backward sampling (CBPF) performs well even with long time series. Previous theoretical results have not been able to demonstrate the improvement brought by backward sampling, whereas we provide rates showing that CBPF can remain effective with a fixed number of particles independent of the time horizon. Our result is based on analysis of a new coupling of two CBPFs, the coupled conditional backward sampling particle filter (CCBPF). We show that CCBPF has good stability properties in the sense that with fixed number of particles, …
Quantifying coordination and coordination variability in backward versus forward running: Implications for control of motion
2015
The aims of this study were to compare coordination and coordination variability in backward and forward running and to investigate the effects of speed on coordination variability in both backward and forward running. Fifteen healthy male participants took part in this study to run forwards and backwards on a treadmill at 80%, 100% and 120% of their preferred running speeds. The coordinate data of passive reflective markers attached to body segments were recorded using motion capture systems. Coordination of shank-foot and thigh-shank couplings in sagittal plane was quantified using the continuous relative phase method. Coordination variability was calculated as the standard deviation of a…
Affirmative action in India: redistribuzione di beni e creazione di identità
2009
L’India è probabilmente lo stato in cui l’affirmative action riguarda la più ampia percentuale di popolazione e i più svariati ambiti della vita pubblica; inoltre le prime forme di agevolazione di gruppi svantaggiati previste dal governo risalgono ad oltre 130 anni fa. La reservation policy (il nome con cui in India vengono chiamate le azioni positive) è argomento ricorrente del dibattito pubblico: tema eminente di ogni programma elettorale, influisce fortemente nella costituzione della base dei partiti e nella scelta dei rappresentanti, è contestata o invocata in molte battaglie politiche e in numerosi conflitti sociali che agitano il paese. Ha contribuito fortemente a profilare le identit…
Quadratic backward stochastic differential equations
2017
Tässä tutkielmassa analysoimme takaperoisia stokastisia differentiaaliyhtälöitä. Aloitamme esittelemällä stokastiset prosessit, Brownin liikkeen, stokastiset integraalit ja Itôn kaavan. Tämän jälkeen siirrymme tarkastelemaan stokastisia differentiaaliyhtälöitä ja lopulta takaperoisia stokastisia differentiaaliyhtälöitä. Tämän tutkielman pääaiheena on takaperoiset stokastiset differentiaaliyhtälöt kvadraattisilla oletuksilla. Näillä oletuksilla todistamme olemassaoloteoreeman ja tietyt säännöllisyysehdot takaperoisen stokastisen differentiaaliyhtälön ratkaisulle. In this thesis, we analyze backward stochastic differential equations. We begin by introducing stochastic processes, Brownian moti…
Operator splitting methods for American option pricing
2004
Abstract We propose operator splitting methods for solving the linear complementarity problems arising from the pricing of American options. The space discretization of the underlying Black-Scholes Scholes equation is done using a central finite-difference scheme. The time discretization as well as the operator splittings are based on the Crank-Nicolson method and the two-step backward differentiation formula. Numerical experiments show that the operator splitting methodology is much more efficient than the projected SOR, while the accuracy of both methods are similar.
Adaptive discontinuous evolution Galerkin method for dry atmospheric flow
2014
We present a new adaptive genuinely multidimensional method within the framework of the discontinuous Galerkin method. The discontinuous evolution Galerkin (DEG) method couples a discontinuous Galerkin formulation with approximate evolution operators. The latter are constructed using the bicharacteristics of multidimensional hyperbolic systems, such that all of the infinitely many directions of wave propagation are considered explicitly. In order to take into account multiscale phenomena that typically appear in atmospheric flows nonlinear fluxes are split into a linear part governing the acoustic and gravitational waves and a nonlinear part that models advection. Time integration is realiz…