Results 91 to 100 of about 234 (189)

Diferencias finitas para modelos difusivos no locales [PDF]

open access: yes, 2014
El objetivo de esta tesis es desarrollar una estrategia numérica para la solución de la ecuación de Black-Scholes no local, por medio de la técnica de la molificación discreta y el método de diferencias finitas, se realiza un análisis de estabilidad y ...
Osorio Guzmán, Fernán Camilo
core  

Effects of Corporate Greenwashing on Firm Value in China

open access: yesManagerial and Decision Economics, EarlyView.
ABSTRACT In response to rising public expectations for corporate environmental sustainability, instances of greenwashing have emerged as firms seek to alleviate regulatory pressure and mitigate reputational risks. This study examines the nonlinear economic consequences of corporate greenwashing by analyzing panel data from A‐share listed firms in China
Run Kong, Byungkwon Lim, Hyang Mi Choi
wiley   +1 more source

Nordgren PINNs to VQE: Advancing Hydraulic Fracturing Simulations in Shale Reservoirs

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study advances hydraulic fracturing simulations in shale reservoirs using two computational paradigms, Physics‐Informed Neural Networks (PINNs) and the Variational Quantum Eigensolver (VQE). PINNs were employed to solve Nordgren's equation, which governs fracture width evolution, by embedding physical laws into the neural network ...
Dennis Delali Kwesi Wayo   +7 more
wiley   +1 more source

Fundraising as Contracting: Why Nonprofits Accept In‐Kind Donations

open access: yesNonprofit Management and Leadership, EarlyView.
ABSTRACT In‐kind (nonmonetary) donations are a popular form of philanthropy that have received much less scholarly attention than monetary gifts. This study documents the prevalence of types of in‐kind giving and associated organizational practices, then explores links between the perceptions of nonprofit managers, organizational practices, and ...
Elizabeth Searing   +3 more
wiley   +1 more source

Examining Parent, Teacher, School Mental Health Professional, and Researcher Perceptions of a Tier 2 Internalizing Intervention to Promote Feasibility, Usability, and Effectiveness

open access: yesPsychology in the Schools, EarlyView.
ABSTRACT The purpose of this study was to inform the continued development and refinement of the Resilience Education Program (REP), a Tier 2 targeted intervention for students in grades 4–8 exhibiting early signs of internalizing problems. Parents (n = 7), teachers (n = 7), school mental health professionals (n = 11), and researchers (n = 6 ...
Stephen Kilgus   +7 more
wiley   +1 more source

Contributions à la tomographie thermoacoustique. Modélisation et inversion [PDF]

open access: yes, 2010
La Tomographie ThermoAcoustique (TTA) est une technique d'imagerie médicale où un corps exposé à une impulsion électromagnétique génère une onde acoustique mesurée autour de celui-ci.
Bonnefond, Xavier
core  

Past, present and future of local crop evolution

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Promoting agrobiodiversity is a promising strategy for mitigating the negative effects of climate change on global food security. We highlight the central role evolutionary processes play in harnessing the potential of local crops by integrating genomics, archaeology, ethnobotany and traditional ecological knowledge (TEK).
Nataly Allasi Canales   +6 more
wiley   +1 more source

UN ANALISIS DE ESTABILIDAD Y SENSIBILIDAD DE LAS FUNCIONES DEFINIDAS POR PARAMETROS EN UN MODELO DE SEDIMENTACION [PDF]

open access: yes, 2014
This paper deals with the reliable and efficient numerical identification of parameters defining the flux function and the diffusion coefficient of a strongly degenerate parabolic partial differential equation (PDE), which is the basis of a mathematical ...
ACOSTA, CARLOS D.   +2 more
core  

Mortality in an invasive ant does not scale linearly with fipronil exposure

open access: yesPest Management Science, EarlyView.
Increasing fipronil concentration did not linearly increase yellow crazy ant mortality when introduced via horizontal transfer; high doses may limit food sharing. Queen mortality was low, and surviving workers were averse to feeding. Abstract Background Controlling eusocial invasive and other pestiferous insects is difficult.
Peter Yeeles, Angela Strain, Lori Lach
wiley   +1 more source

Large Eddy Simulation of Impinging Jets [PDF]

open access: yes, 2006
This thesis deals with Large Eddy Simulation (LES) of impinging air jets. The impinging jet configuration features heated circular jets impinging onto a flat plate.
Hällqvist, Thomas
core  

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