Results 51 to 60 of about 764,078 (329)

Understanding heavy tails in a bounded world or, is a truncated heavy tail heavy or not? [PDF]

open access: yes, 2009
We address the important question of the extent to which random variables and vectors with truncated power tails retain the characteristic features of random variables and vectors with power tails. We define two truncation regimes, soft truncation regime
Chakrabarty, Arijit   +1 more
core   +1 more source

NLO Renormalization in the Hamiltonian Truncation [PDF]

open access: yes, 2017
Hamiltonian truncation (also known as "truncated spectrum approach") is a numerical technique for solving strongly coupled quantum field theories, in which the full Hilbert space is truncated to a finite-dimensional low-energy subspace.
J. Elias-Miró, S. Rychkov, L. Vitale
semanticscholar   +1 more source

Correcting for truncation bias caused by a latent truncation variable [PDF]

open access: yesJournal of Econometrics, 1985
Abstract We discuss estimation of the model Y i = X i b Y + e Yi , T i = X i b T + e Ti , when data on the continuous dependent variable Y and on the independent variables X are observed iff the ‘truncation variable’ T >0 and when T is latent. This case is distinct from both (i) the‘censored sample’ case, in which
David E. Bloom, Mark R. Killingsworth
openaire   +1 more source

Two Faces of NOTCH1 in Childhood Lymphoblastic T‐Cell Neoplasia: Prognostic Divergence of Mutational and Structural Aberrations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT In pediatric patients, T‐cell lymphoblastic lymphoma (T‐LBL) survival exceeds 80%. Relapse remains associated with limited curative options. Frontline treatment is largely extrapolated from T‐cell acute lymphoblastic leukemia (T‐ALL) treatment, reflecting the ongoing debate, whether both entities represent distinct diseases or variants within ...
Marie C. Heider   +4 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Non-convex perturbation to evolution problems involving Moreau’s sweeping process

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2023
Along this paper, we study an evolution inclusion governed by the so-called sweeping process. The right side of the inclusion contains a set-valued perturbation, supposed to be the external forces exercised on the system.
Boudjerida Nouha   +2 more
doaj   +1 more source

Metrics, Noise Propagation Models, and Design Framework for Floating-Point Approximate Computing

open access: yesIEEE Access, 2021
Approximate computing has emerged as an efficient solution for energy saving at the expense of calculation accuracy, especially for floating-point operation intensive applications, which have urgent demands for some uniform design frameworks for floating-
Yiyao Xiang   +4 more
doaj   +1 more source

Truncation scheme of time-dependent density-matrix approach

open access: yes, 2013
A truncation scheme of the Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy for reduced density matrices, where a three-body density matrix is approximated by the antisymmetrized products of two-body density matrices, is proposed.
Schuck, Peter, Tohyama, Mitsuru
core   +3 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Truncated Power-Normal Distribution with Application to Non-Negative Measurements

open access: yesEntropy, 2018
This paper focuses on studying a truncated positive version of the power-normal (PN) model considered in Durrans (1992). The truncation point is considered to be zero so that the resulting model is an extension of the half normal distribution.
Nabor O. Castillo   +3 more
doaj   +1 more source

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