Results 41 to 50 of about 18,081 (306)

Positivity preserving transformations for 𝑞-binomial coefficients [PDF]

Transactions of the American Mathematical Society, 2004
Several new transformations for q q -binomial coefficients are found, which have the special feature that the kernel is a ...
Berkovich, A., Warnaar, S. O.
openaire   +6 more sources

Positivity Effect to Address the Paradox of Preserved Positive Emotion Recognition Performances in Patients with Multiple Sclerosis

, 2021
A growing body of research highlighted difficulties in recognizing negative emotions in MS-patients, contrasting with a preservation of positive emotions recognition performances.
Beatrice Degraeve
core   +1 more source

Emapalumab for Immune Effector Cell‐Associated Hemophagocytic Lymphohistiocytosis‐Like Syndrome Following CD19‐Directed CAR‐T in Two Patients With B‐ALL: Clinical and Biomarker Correlates

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Immune effector cell‐associated hemophagocytic lymphohistiocytosis‐like syndrome (IEC‐HS) is a life‐threatening hyperinflammatory toxicity distinct from cytokine release syndrome (CRS) and neurotoxicity following chimeric antigen receptor T‐cell (CAR‐T) therapy. In a single‐institution retrospective cohort of pediatric and young adult patients
Thomas J. Galletta, Jeremy D. Rubinstein, Christopher E. Dandoy, Ruby Khoury, Angela Faulhaber, Christine L. Phillips, Christa Krupski   +6 more
wiley   +1 more source

Matrix positivity preservers in fixed dimension. I [PDF]

Advances in Mathematics, 2016
A classical theorem of I.J. Schoenberg characterizes functions that preserve positivity when applied entrywise to positive semidefinite matrices of arbitrary size. Obtaining similar characterizations in fixed dimension is intricate. In this note, we provide a solution to this problem in the polynomial case.
Alexander Belton, Dominique Guillot, Apoorva Khare, Mihai Putinar   +3 more
openaire   +6 more sources

On positivity, shape, and norm-bound preservation of time-stepping methods for semigroups

, 2004
We use functional calculus methods to investigate qualitative properties of C0-semigroups that are preserved by time-discretization methods. Preservation of positivity, concavity and other qualitative shape properties which can be described via ...
Mihály Kovács, Kovács, Mihály
core   +1 more source

Ricci flow and positivity of curvature on manifolds with boundary

, 2023
In this thesis, we explore short time existence and uniqueness of solutions to the Ricci flow on manifolds with boundary, as well as the preservation of natural curvature positivity conditions along the flow.
Chow, Tsz Kiu Aaron
core   +1 more source

The Role of Hematopoietic Cell Transplantation in Ataxia‐Telangiectasia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Ataxia‐telangiectasia (A‐T) is a DNA repair disorder characterized by neurodegeneration, immunodeficiency, and cancer predisposition. Hematopoietic cell transplantation (HCT) is an established therapy in related disorders such as Fanconi anemia (FA) and Nijmegen breakage syndrome (NBS), but its role in A‐T is unclear.
Laila Alkhouli, Seth Rotz, Masatoshi Takagi, Richa Sharma   +3 more
wiley   +1 more source

Position Preserving Multi-Output Prediction [PDF]

, 2013
There is a growing demand for multiple output prediction methods capable of both minimizing residual errors and capturing the joint distribution of the response variables in a realistic and consistent fashion. Unfortunately, current methods are designed to optimize one of the two criteria, but not both.
Zubin Abraham, Pang-Ning Tan, Perdinan, Julie Winkler, Shiyuan Zhong, Malgorzata Liszewska   +5 more
openaire   +1 more source

Positivity-preserving discontinuous Galerkin scheme for linear hyperbolic equations with characteristics-informed augmentation

Results in Applied Mathematics
This paper presents a positivity-preserving discontinuous Galerkin (DG) scheme for the linear hyperbolic problem with variable coefficients on structured Cartesian domains.
Maurice S. Fabien
doaj   +1 more source

Quantum networks theory [PDF]

Quantum
The formalism of quantum theory over discrete systems is extended in two significant ways. First, quantum evolutions are generalized to act over entire network configurations, so that nodes may find themselves in a quantum superposition of being ...
Pablo Arrighi, Amélia Durbec, Matt Wilson   +2 more
doaj   +1 more source