Results 101 to 110 of about 19,013 (209)

Finance research over 40 years: What can we learn from machine learning?

open access: yesInternational Studies of Economics, Volume 19, Issue 4, Page 472-507, December 2024.
Abstract We apply machine learning models to a universe of 20,185 finance articles published between 1976 and 2015 on 17 finance journals, and objectively identify 38 research topics. The financial crisis, hedge/mutual fund, social network, and culture were the fastest growing topics, while market microstructure, initial public offering, and option ...
Po‐Yu Liu, Zigan Wang
wiley   +1 more source

Regional Development Funds: Creation Rationale and Models of Operation

open access: yesStudia Ekonomiczne i Regionalne
The purpose of the article is to present the creation of Regional Development Funds (Regionalne Fundusze Rozwoju - RFR) in Poland, their organisational models and factors influencing their development and choice of model.
Radło Mariusz-Jan   +2 more
doaj   +1 more source

G28 肺癌術後椎体転移に対する外科治療(肺癌c,示説,第14回日本呼吸器外科学会総会号)

open access: closedThe Journal of the Japanese Association for Chest Surgery, 1997
久嗣 塚田   +5 more
openalex   +3 more sources

Galileo dust data from the jovian system: 2000 to 2003

open access: yes, 2009
The Galileo spacecraft was orbiting Jupiter between Dec 1995 and Sep 2003. The Galileo dust detector monitored the jovian dust environment between about 2 and 370 R_J (jovian radius R_J = 71492 km).
A.L. Graps   +78 more
core   +1 more source

A new non-arithmetic lattice in PU(3,1)

open access: yes, 2019
We study the arithmeticity of the Couwenberg-Heckman-Looijenga lattices in PU(n,1), and show that they contain a non-arithmetic lattice in PU(3,1) which is not commensurable to the non-arithmetic Deligne-Mostow lattice in PU(3,1)
Deraux, Martin
core   +2 more sources

Effect of sediment erosion on pressure pulsations in a large Pelton turbine

open access: yesEnergy Science &Engineering, Volume 12, Issue 10, Page 4040-4056, October 2024.
Cloud of bucket erosion depth over 2 years of operation. Abstract Pelton turbines functioning in sandy river environments often encounter difficulties due to the swift movement of sediment particles, leading to erosion and damage to overflow components.
Bing Yao   +8 more
wiley   +1 more source

Gauge boson fusion as a probe of inverted hierarchies in supersymmetry

open access: yes, 2003
Supersymmetric scenarios with inverted mass hierarchy can be hard to observe at a hadron collider, particularly for the non-strongly interacting sector.
Biswarup Mukhopadhyaya   +4 more
core   +1 more source

Evolution of the concept of Quark Matter: the Ianus face of the heavy ion collisions

open access: yes, 2005
Since the beginning of the efforts to produce and understand quark matter large changes developed in the ideas of description of this matter. In the present paper we summarize some aspects of this development.Comment: Talk given at 18th International ...
Adams   +29 more
core   +1 more source

Non-universal Critical Quantities from Variational Perturbation Theory and Their Application to the BEC Temperature Shift

open access: yes, 2004
For an O(N) symmetric scalar field theory with Euclidean action integral d^3x [1/2 |nabla phi|^2 + 1/2 r phi^2 + 1/4! u phi^4], where phi = (phi_1,...,phi_N) is a vector of N real field components, variational perturbation theory through seven loops is ...
B. Kastening   +5 more
core   +1 more source

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