Results 31 to 40 of about 933,240 (306)

Données personnelles et plateformes numériques : sophistication et concentration du marché publicitaire

open access: yesTic & Société, 2019
Advertising platforms are new agents of intermediation that create new efficiencies by aggregating unorganized markets, and proposing centralized markets to serve widely dispersed individuals and organizations.
Thomas GUIGNARD
doaj   +1 more source

Information Dispersion Across Employees and Stock Returns

open access: yesSSRN Electronic Journal, 2018
Abstract Rank-and-file employees are becoming increasingly critical for many firms, yet we know little about how their employment dynamics matter for stock prices. We analyze new data from the individual CV’s of public company employees and find that rank-and-file labor flows can be used to predict abnormal stock returns. Accounting data
Agrawal, Ashwini   +2 more
openaire   +2 more sources

Direct numerical simulation of dispersed particles in a compressible fluid [PDF]

open access: yes, 2012
We present a direct numerical simulation method for investigating the dynamics of dispersed particles in a compressible solvent fluid. The validity of the simulation is examined by calculating the velocity relaxation of an impulsively forced spherical ...
G. Erlebacher   +3 more
core   +2 more sources

Blockholder dispersion and firm value [PDF]

open access: yes, 2009
This paper analyzes the impact of blockownership dispersion on firm value. Blockholdings by multiple blockholders is a widespread phenomenon in the U.S. market. It is not clear, however, whether dispersion among blockholder is preferable to having a more
Konijn, Sander J. J.   +2 more
core   +4 more sources

Successional trajectories of seed dispersal mode and seed size of canopy tree species in wet tropical forests

open access: yesFrontiers in Forests and Global Change, 2022
Despite the critical role of seed dispersal for tree colonization during forest succession in wet tropical forests, successional trajectories of seed dispersal modes are poorly documented at the community level.
Amanda L. Wendt   +4 more
doaj   +1 more source

Disinfection of Contaminated Heritage Surfaces from SARS-CoV-2 Virus

open access: yesJournal of Conservation and Museum Studies, 2021
For the heritage sector the global pandemic has introduced unique challenges; with infectious viral particles persisting on some surfaces for days, people must be protected from objects as much as the objects need to be protected from people.
Philip Skipper   +2 more
doaj   +1 more source

Noisy Business Cycles [PDF]

open access: yes, 2009
This paper investigates a real-business-cycle economy that features dispersed information about the underlying aggregate productivity shocks, taste shocks, and—potentially—shocks to monopoly power.
Angeletos, George-Marios, La'O, Jennifer
core   +2 more sources

Distributed Backup through Information Dispersal

open access: yesElectronic Notes in Theoretical Computer Science, 2006
AbstractThe formal aspects underlying a novel distributed backup service are discussed. Strength and originality of the service lie in the combined adoption of an established information dispersal algorithm with a simplified version of an existing location service.
BELLA, Giampaolo   +2 more
openaire   +2 more sources

Study of the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals [PDF]

open access: yes, 2004
Local and nonlocal models for the diffusion of photopolymers are applied to the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals (H-PDLCs). We retrieve the main parameters of H-PDLCs (
Bowley   +11 more
core   +2 more sources

Seed rain and seed bank reveal that seed limitation strongly influences plant community assembly in grasslands. [PDF]

open access: yesPLoS ONE, 2014
Dispersal is an important factor in plant community assembly, but assembly studies seldom include information on actual dispersal into communities, i.e. the local propagule pool.
Bryndís Marteinsdóttir
doaj   +1 more source

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