Results 91 to 100 of about 25,143 (223)

Asymmetric information of variance risk premium in the Chinese market: upside and downside volatility spillovers

open access: yesManagement System Engineering
We investigate the degree of asymmetry in the variance risk premium (VRP) using SSE 50 ETF options in the Chinese market. Our approach decomposes the VRP into upside and downside components and quantifies the dynamic spillover asymmetry measure (SAM ...
Jue Gong   +3 more
doaj   +1 more source

Skew Premiums Around Earnings Announcements

open access: yesFinancial Review, Volume 61, Issue 2, Page 533-554, May 2026.
ABSTRACT We examine skew premiums in equity options around earnings announcements. We use the realized returns to delta‐neutral risk reversal option spreads as a proxy for the skew premiums. We find skew premiums are economically significant around earnings announcements and are not explained by changes in variance risk premiums.
Thaddeus Neururer, George Papadakis
wiley   +1 more source

A multidirectional modified Physarum solver for discrete decision making [PDF]

open access: yes, 2012
In this paper, a bio-inspired algorithm able to incrementally grow decision graphs in multiple directions is presented. The heuristic draws inspiration from the behaviour of the slime mould Physarum Polycephalum.
Masi, Luca, Vasile, Massimiliano
core  

Enhancing post‐fire decision‐making: a framework for rapid wildfire impact assessment and evidence‐based management planning

open access: yesRestoration Ecology, Volume 34, Issue 4, May 2026.
Abstract Introduction Altered wildfire regimes, exacerbated by unsustainable management, threaten natural ecosystem recovery post‐fire. Effective restoration requires timely fire impact assessments and tailored, evidence‐based management. While fire databases and Environmental Impact Assessment (EIA) frameworks partially support decision‐making, a ...
Irina Cristal   +4 more
wiley   +1 more source

Integrated transportation system planning with gravitational search algorithm approach based on fuzzy mutant controller

open access: yesمدیریت بهره وری
: Gravitational search algorithm is a newly emerging meta-heuristic algorithm. In this algorithm, the gravitational force between answers can be calculated in two ways.
Alireza Hosseinzadeh Kashani   +3 more
doaj  

OPTIMIZING UNMANNED AERIAL VEHICLE BASED FOOD DELIVERY THROUGH VEHICLE ROUTING PROBLEM: A COMPARATIVE ANALYSIS OF THREE DELIVERY SYSTEMS.

open access: yesApplied Computer Science
In recent times, there has been a notable increase in interest surrounding the integration of Un-manned Aerial Vehicle (UAV) technology and vehicle routing problems (VRP) for package delivery purposes.
Rumesh Edirimanne   +4 more
doaj   +1 more source

Vehicle Routing Problem (VRP) for courier service: A review

open access: yesMATEC Web of Conferences, 2018
The internet development access is really very fast and change all aspects for life activities include buying and selling transactions of goods or services that can arrange online or also called e-commerce which courier service influence.
Purnamasari Citra Dewi, Santoso Amelia
doaj   +1 more source

Tailored Dual Responsive Hybrid Gelatin Methacryloyl/Poly[2‐(Dimethylamino)Ethyl Methacrylate] Hydrogels for Efficient Ibuprofen Release in Topical Applications

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 15, April 15, 2026.
GelMA/DMAEMA hybrid hydrogels for release of ibuprofen. ABSTRACT In this study, biocompatible hydrogels intended for topical delivery of ibuprofen were synthesized from gelatin methacryloyl (GelMA) and 2‐(dimethylamino)ethyl methacrylate (DMAEMA) by varying their proportions. The impact of different GelMA and DMAEMA ratios was comprehensively evaluated
Guilherme Frey Schutz   +7 more
wiley   +1 more source

Vector-directed immunity and boosting capacity of VRP-srRNA anti-tumor vaccines

open access: yesnpj Vaccines
Self-replicating RNA vaccines delivered by viral replicon particles (VRPs) induce strong immunity, but repeated dosing on short intervals may be limited by vector responses.
Xingru Ma   +12 more
doaj   +1 more source

Komplex hálózatok vizsgálata statisztikus fizikai módszerekkel = Analysis of complex networks with statistical physics methods [PDF]

open access: yes, 2009
Hálózati csoportosulásokat (klasztereket, modulokat) kereső módszer segítségével átfedő, sűrű csoportokat találtunk molekuláris biológiai (fehérje-fehérje kölcsönhatások, transzkripció reguláció), kognitív (szó-asszociációs) és szociális (társszerzőségi)
Farkas, Illés
core  

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