Results 91 to 100 of about 1,647,817 (351)

Fiscal Transparency and Fiscal Policy Outcomes in OECD Countries. [PDF]

open access: yes
It is widely believed and often argued that fiscal, or budgetary, transparency has large, positive effects on fiscal performance. However, the evidence linking transparency and fiscal policy outcomes is far from compelling.
David Dreyer Lassen, James E. Alt
core  

Retractions in rheumatology: trends, causes, and implications for research integrity

open access: yesArthritis Care &Research, Accepted Article.
Objective We aimed to describe the trends and main reasons for study retraction in rheumatology literature. Methods We reviewed the Retraction Watch database to identify retracted articles in rheumatology. We recorded the main study characteristics, authors’ countries, reasons for retraction, time from publication to retraction, and trends over time ...
Anna Maria Vettori, Michele Iudici
wiley   +1 more source

Zonation of submerged vegetation in Lake Kariba, Zimbabwe and its ecological interpretation [PDF]

open access: yes, 1987
The submerged vegetation of Lake Kariba is described in relation to degree of slope (lake morphometry), depth and light transparency. The direct gradient analysis technique - canonical correspondence analysis and the TWINSPAN classification programs were
Machena, C.
core  

Optical transparency modes in anisotropic media

open access: yes, 2005
The modes of nonlinear propagation of the two-component electromagnetic pulses through optically uniaxial media containing resonant particles are studied.
Sazonov, S. V., Ustinov, N. V.
core   +2 more sources

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Therapeutic benefit of the most expensive drugs covered by Medicare and Medicaid

open access: yesJournal of Pharmaceutical Policy and Practice
Introduction: The United States began drug pricing negotiations in 2024 under the Inflation Reduction Act. Evaluating the therapeutic benefit of drugs will help guide pricing decisions and are an opportunity to improve healthcare affordability.Discussion:
Tiffany Enxia Jiang   +3 more
doaj   +1 more source

Momentum Transfer Dependence of Nuclear Transparency from the Quasielastic ^(12)C(e, e'p) Reaction [PDF]

open access: yes, 1994
The cross section for quasielastic ^(12)C(e,e’p) scattering has been measured at momentum transfer Q^2=1, 3, 5, and 6.8 (GeV/c)^2. The results are consistent with scattering from a single nucleon as the dominant process.
Arrington, J.   +9 more
core  

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

open access: yesAdvanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De   +3 more
wiley   +1 more source

Promoting gender equity in a home visits programme: a qualitative study in Northern Nigeria

open access: yesBMC Women's Health
Background Gender inequities remain critical determinants influencing maternal health. Harmful gender norms and gender-based violence adversely affect maternal health.
Loubna Belaid   +7 more
doaj   +1 more source

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