Results 111 to 120 of about 8,813 (237)
Marchenko–Pastur Laws for Daniell Smoothed Periodograms
Journal of Time Series Analysis, EarlyView.ABSTRACT Given a sample X0,…,Xn−1$$ {X}_0,\dots, {X}_{n-1} $$ from a d$$ d $$‐dimensional stationary time series (Xt)t∈ℤ$$ {\left({X}_t\right)}_{t\in \mathbb{Z}} $$, the most commonly used estimator for the spectral density matrix F(θ)$$ F\left(\theta \right) $$ at a given frequency θ∈[0,2π)$$ \theta \in \left[0,2\pi \right) $$ is the Daniell smoothed ...
Ben Deitmar
wiley +1 more source
Penalized Convex Estimation in Dynamic Location Models
Journal of Time Series Analysis, EarlyView.ABSTRACT This paper studies L1$$ {L}^1 $$‐penalized estimation for location models yt=mt+ϵt$$ {y}_t={m}_t+{\epsilon}_t $$, where mt$$ {m}_t $$ is defined by a possibly non‐Markovian recursion and ϵt$$ {\epsilon}_t $$ is a martingale difference sequence with possibly time‐varying conditional variance.
Reda Alami Chentoufi
wiley +1 more source
Moving Aggregate Modified Autoregressive Copula‐Based Time Series Models (MAGMAR‐Copulas)
Journal of Time Series Analysis, EarlyView.ABSTRACT Copula‐based time series models can model univariate and stationary time series in a flexible way by decomposing the joint distribution of consecutive observations into a copula and the stationary distribution. Implicitly, this approach assumes a finite Markov order. In reality, a time series may not follow the Markov property.
Sven Pappert
wiley +1 more source
New Labor Governance? The German Supply Chain Act and National Governance Mechanisms in Brazil
Regulation &Governance, EarlyView.ABSTRACT Due diligence laws respond to labor governance challenges and to a lack of public governance addressing human rights violations in Global Value Chains. Despite ongoing contestation, the German Supply Chain Due Diligence Act seeks to hold German‐based firms accountable for human rights risks in their supply chains.
Helena Gräf
wiley +1 more source
CLT and non-CLT groups of order $p^2 q^2$ [PDF]
Fundamenta Mathematicae, 1976 openaire +2 more sources
School Science and Mathematics, EarlyView.ABSTRACT Extensive research has demonstrated the effectiveness of concept maps in fostering students' conceptual understanding. However, less is known about how cognitive and motivational variables interact to influence chemistry learning outcomes in ecologically valid settings.
Oluwafemi J. Sunday +2 more
wiley +1 more source
Case Report: T‐Lymphoblastic Leukemia in a Dog With Erythrophagia
Veterinary Clinical Pathology, EarlyView.ABSTRACT A 2‐year‐old male German Shepherd dog was presented with progressive weight loss, lethargy, and hyporexia. Hematologic analysis revealed a moderate macrocytic normochromic anemia and moderate thrombocytopenia. Additionally, a pronounced leukocytosis was observed, characterized by 33% large lymphoid cells, marked neutrophilia with a significant
Francisca B. Lang +7 more
wiley +1 more source
Journal of Behavioral Decision Making, Volume 39, Issue 4, October 2026.ABSTRACT Mental accounting research exhibits how consumers' marketplace behaviors deviate from those predicted by the Standard Economic Theory. For example, research shows how money loses fungibility when people assign mental labels to their currency and make purchases consistent with such labels. Although the applications of mental accounting are well
Mehdi Tanzeeb Hossain
wiley +1 more source
Clinical Pharmacology &Therapeutics, Volume 120, Issue 3, Page 614-638, September 2026.Antibody–drug conjugates (ADCs) combine the specificity of an antibody with the potency of a cytotoxic drug. Thirteen ADCs, utilizing seven unique cytotoxic payloads and targeting 11 distinct antigens, are currently approved by the US Food and Drug Administration as of June 2025, representing a rapidly growing and highly promising class of anticancer ...
Sijie Lu +6 more
wiley +1 more source