Results 31 to 40 of about 153,608,179 (170)
Design of optimal Earth pole-sitter transfers using low-thrust propulsion [PDF]
, 2012 Recent studies have shown the feasibility of an Earth pole-sitter mission using low-thrust propulsion. This mission concept involves a spacecraft following the Earth's polar axis to have a continuous, hemispherical view of one of the Earth's poles.
Biggs, James +3 more
core +1 more source
Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.Abstract INTRODUCTION Chronic traumatic encephalopathy (CTE) is a tauopathy linked to repetitive head impacts. Factors influencing brain regional susceptibility to tau deposition and spreading remain unclear. METHODS We used three datasets: [18F]flortaucipir positron emission tomography (PET) in 157 former professional American football players and 53 ...
Tim L. T. Wiegand +25 more
wiley +1 more source
Robust pole assignment techniques via state feedback [PDF]
, 2000 We present a unifying computational framework to solve robust pole assignment problems for linear systems using state feedback. The new framework uses Sylvester equation based parametrizations of the pole assignment problems.
Varga, Andras
core
Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.Abstract The Alzheimer's Disease Neuroimaging Initiative (ADNI) recently celebrated its 20th anniversary, reflecting two decades of major contributions to Alzheimer's research through open data sharing and longitudinal multimodal assessments. This review synthesizes 122 high‐impact studies using ADNI data or biospecimens from 2023 to mid‐2025 to ...
Dallas P. Veitch +22 more
wiley +1 more source
A Multishift Hessenberg Method for Pole Assignment of Single-Input Systems [PDF]
, 1996 A new algorithm is proposed for the pole assignment of single-input linear time-invariant systems. The proposed algorithm belongs to the family of Hessenberg methods and is based on an implicit multishift QR-like technique.
Andras Varga, Varga, A.
core
Novel pole-sitter mission concepts for continuous polar remote sensing [PDF]
, 2012 The pole-sitter concept is a solution to the poor temporal resolution of polar observations from highly inclined, low Earth orbits and the poor high latitude coverage from geostationary orbit.
Jeannette Heiligers +8 more
core +1 more source
Update of the risk assessment on dioxins and dioxin‐like PCBs in feed and food
EFSA Journal, Volume 24, Issue 6, June 2026.Abstract The European Commission asked EFSA to update its 2018 risk assessment on polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) and dioxin‐like polychlorinated biphenyls (DL‐PCBs) in feed and food, based on the 2022 WHO Toxic Equivalency Factors (WHO2022‐TEFs).
EFSA Panel on Contaminants in the Food Chain (CONTAM Panel) +27 more
wiley +1 more source
Alzheimer's &Dementia, Volume 22, Issue 5, May 2026.Abstract INTRODUCTION In Alzheimer's disease (AD), tau–neurodegeneration (T–N) mismatch has been proposed to reflect non‐AD processes such as transactive response DNA binding protein 43 kDa and vascular disease. We aimed to characterize the spatiotemporal trajectories of T–N mismatch that may reflect non‐AD progression.
Xueying Lyu +13 more
wiley +1 more source
Robust pole assignment for descriptor systems [PDF]
, 2000 By using a generalized Sylvester equation based parametrization, three minimum norm robust pole assignment problems for descriptor systems are formulated as unconstrained minimization problems for suitably chosen cost functions.
Varga, Andras
core
Alzheimer's &Dementia, Volume 22, Issue 5, May 2026.Abstract Historically, imaging diagnostics in Alzheimer's disease (AD) have focused primarily on amyloid and tau accumulation; however, recent work suggests that neurometabolic and vascular dysregulation (MVD) may precede protein deposition and persist throughout the disease spectrum, preclinically and clinically.
Juan Antonio K. Chong Chie +6 more
wiley +1 more source