Results 91 to 100 of about 82,878 (275)

Periodic orbits in complex Abel equation [PDF]

open access: yes, 2006
This paper is devoted to prove two unexpected properties of the Abel equation dz/dt = z 3 +B(t)z 2 +C(t)z, where B and C are smooth, 2π−periodic complex valuated functions, t ∈ R and z ∈ C.
Cimà, Anna   +3 more
core  

Machine‐learning approaches for characterizing the raindrop size distributions in Western Pacific tropical cyclones

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Long‐term disdrometer observations are utilized to derive Z–R relationships for ‐the Western Pacific tropical cyclones. A hybrid moment‐based approach is employed to determine the interrelationships among pairs of gamma distribution parameters. Enhanced estimates of rainfall rate and slope parameter are obtained using machine‐learning techniques ...
Jayalakshmi Janapati   +5 more
wiley   +1 more source

“There Are Places Full of Beauty”: Desettling High School Students' Scientific Writing

open access: yesScience Education, EarlyView.
ABSTRACT This study contributes to desettling and expanding expectations about the forms of scientific language that belong in students' scientific writing. The primary empirical focus is the analysis of 52 high school student abstracts articulating community‐based investigations, submitted as part of their participation in a student conference in a ...
Alejandra Frausto Aceves
wiley   +1 more source

Forgoing Nuclear: Nuclear Power Plant Closures and Carbon Emissions in the United States

open access: yesSouthern Economic Journal, EarlyView.
ABSTRACT This paper examines the effect of nuclear power plant decommissioning on electricity generation and carbon emissions in the United States. Using data on nuclear reactor closures in the United States between 1993 and 2022 and data on state‐level carbon emissions and electricity generation from the Energy Information Administration (EIA), this ...
Luke Petach
wiley   +1 more source

Emancipatory Potential of Naming: A Study on Church Employees' Personal Stories of Negative Experiences

open access: yesSymbolic Interaction, EarlyView.
To address interactionally troublesome exchanges (e.g., bullying, discrimination, or harassment) in the workplace, giving a name to negative personal experiences is crucial. Drawing on discussions of hermeneutical injustice, we explore the emancipatory potential of naming in post‐hoc tellings of these experiences, with particular attention to ...
Minna Leinonen   +2 more
wiley   +1 more source

Revolving scheme for solving a cascade of Abel equations in dynamics of planar satellite rotation

open access: yesTheoretical and Applied Mechanics Letters, 2017
The main objective for this research was the analytical exploration of the dynamics of planar satellite rotation during the motion of an elliptical orbit around a planet. First, we revisit the results of J. Wisdom et al.
Sergey V. Ershkov
doaj   +1 more source

Periodic solutions of Abel differential equations

open access: yesJournal of Mathematical Analysis and Applications, 2007
For a class of polynomial non-autonomous differential equations of degree n, we use phase plane analysis to show that each equation in this class has n periodic solutions. The result implies that certain rigid two-dimensional systems have at most one limit cycle which appears through multiple Hopf bifurcation.
openaire   +2 more sources

Adaptation of Enhanced Recovery After Surgery Protocol for Elective Gastrointestinal and Hepatopancreaticobiliary Surgeries for Tertiary Hospitals in Ethiopia: A Modified Delphi Study

open access: yesWorld Journal of Surgery, EarlyView.
This adapted protocol consisting of 27 recommendations represents a critical step toward implementing standardized resource‐appropriate ERAS pathways for GI and HPB surgeries in Ethiopia. ABSTRACT Background Patients in low‐ and middle‐income countries (LMICs) lack access to safe and affordable surgical and anesthetic care.
Wongel Tena Shale   +7 more
wiley   +1 more source

Algebro-Geometric Solutions for a Discrete Integrable Equation

open access: yesDiscrete Dynamics in Nature and Society, 2017
With the assistance of a Lie algebra whose element is a matrix, we introduce a discrete spectral problem. By means of discrete zero curvature equation, we obtain a discrete integrable hierarchy. According to decomposition of the discrete systems, the new
Mengshuang Tao, Huanhe Dong
doaj   +1 more source

Abel's Equation and Regular Growth: Variations on a Theme by Abel [PDF]

open access: yesExperimental Mathematics, 1998
Following a 70-year old suggestion of Paul Levy, a condition is formulated for the regularity of growth of real functions. The condition, which is quite explicit, makes use of the iterates of the function and solutions of Abel's functional equation, and is well adapted to a computer testing.
openaire   +2 more sources

Home - About - Disclaimer - Privacy