Results 71 to 80 of about 402,189 (237)

Race‐related research in economics

Economica, Volume 93, Issue 370, Page 403-438, April 2026.
Abstract Issues of racial justice and economic inequalities between racial and ethnic groups have risen to the top of public debate. Economists' ability to contribute to these debates is based on the body of race‐related research. We study the volume and content of race‐related research in economics.
Arun Advani, Elliott Ash, Anton Boltachka, David Cai, Imran Rasul   +4 more
wiley   +1 more source

Urban and Power Plant NOx Emissions in Sub‐Saharan Africa Inferred From TROPOMI

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 4, 28 February 2026.
Abstract Nitrogen oxides (NOx) emissions are increasing rapidly in Sub‐Saharan Africa, affecting local air quality. Outside South Africa, most hotspots are relatively small, posing a challenge for traditional top‐down inversions. We tailor an existing top‐down wind rotation and Gaussian plume fit inversion to suit the relatively small NOx hotspots for ...
Eloise A. Marais, Nana Wei, Eric Y. P. Tan, Gongda Lu, Sekou Keita, Mogesh Naidoo, Rebecca M. Garland   +6 more
wiley   +1 more source

Option pricing under non-normal distribution in mixed of Gram-Charlier model and fractional models (A case study of Iran Stock Exchange‏) [PDF]

Mathematics and Modeling in Finance
In order to reduce the risk of financial markets, various tools have emerged, and option contracts are the most common tools in this regard. The Black-Scholes model is used to price a wide range of options contracts. The basic assumption in this model is
Mohammad Reza Haddadi, Hossein Nasrollahi   +1 more
doaj   +1 more source

Multithread Approximation: An OpenMP Constructor

Concurrency and Computation: Practice and Experience, Volume 38, Issue 4, February 2026.
ABSTRACT This study introduces an OpenMP construct designed to simplify and unify the integration of approximate computing techniques into shared‐memory parallel programs. Approximate Computing leverages the inherent error tolerance of many applications to trade computational accuracy for gains in performance and energy efficiency.
João Briganti de Oliveira, Rogério Aparecido Gonçalves, João Fabrício Filho   +2 more
wiley   +1 more source

Dynamic Debt With Intensity‐Based Models

Journal of Futures Markets, Volume 46, Issue 2, Page 334-352, February 2026.
ABSTRACT This article proposes a dynamic debt model where the face value of debt can change. In particular, our dynamic debt setting allows debt changes ruled by intensity processes that are linked to the firm value through the correlation between the stochastic processes. Analytical solutions are obtained, and we extend the proposed dynamic debt model
João Miguel Reis, José Carlos Dias
wiley   +1 more source

N2 fixation is linked to the ability to encroach in African savanna trees

Functional Ecology, Volume 40, Issue 2, Page 517-533, February 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Encroachment is a globally ubiquitous phenomenon, characterised by increasing indigenous tree densities in savanna and grassland. Encroachment has been attributed to rising atmospheric CO2 concentrations fertilising tree growth and shifting the competitive balance ...
Elizabeth M. Telford, Kimberley Simpson, Lorna Street, Emily Fletcher, Richard Carkeek, Russell B. Dixon, Katie J. Field, Emma Jones, Sarah L. Raubenheimer, Edith Singini, Brad Ripley, Colin P. Osborne, Caroline E. R. Lehmann   +12 more
wiley   +1 more source

Compact Difference Schemes with Temporal Uniform/Non-Uniform Meshes for Time-Fractional Black–Scholes Equation [PDF]

, 2023
Jie Gu, Lijuan Nong, Qian Yi, An Chen
openalex   +1 more source

Supply chain risk in grain trading: Inventories as real options for shipping grain

Agribusiness, Volume 42, Issue 1, Page 175-195, Winter 2026.
Abstract Integrating trading and logistics is an important challenge in commodity trading. Trading and logistics are strategic decisions and are integral to most commodities including grain shipping by rail, in addition to other modes (barges, ocean shipping). There are substantial risks, such as the ordering and placement of rail cars.
William W. Wilson, Jesse Klebe
wiley   +1 more source

Drivers of Hirola Antelope Diet Selection in Natural and Managed Habitat in Eastern Kenya

Ecology and Evolution, Volume 16, Issue 1, January 2026.
Hirola (Beatragus hunteri) populations in eastern Kenya consumed 17 forage species, favoring the grass Chloris virgata and the forbs Commelina benghalensis and C. diffusa. Nutrient analyses showed that natural habitats offered higher phosphorus, magnesium, and digestibility, whereas managed sites provided more sodium, potassium, and crude protein, with
Abdullahi H. Ali, S. Kivai
wiley   +1 more source

Radial Basis Function Neural Network With Resilient Backpropagation for Solving Fractional‐Order Chaotic Virotherapy Dynamics

Computational and Mathematical Methods, Volume 2026, Issue 1, 2026.
The purpose of this work is to solve the fractional‐order model of chaotic virotherapy dynamics by executing a neural network scheme. The chaotic virotherapy dynamics is divided into four categories: uninfected tumor cells, infected tumor cells, immune cells, and virus‐free cells.
Zulqurnain Sabir, M. A. Abdelkawy, Muhammad Umar, Soheil Salahshour, Saira Bhatti, Smritijit Sen   +5 more
wiley   +1 more source