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Complex Valued Risk Diversification [PDF]

open access: yes, 2018
Risk diversification is one of the dominant concerns for portfolio managers. Various portfolio constructions have been proposed to minimize the risk of the portfolio under some constrains including expected returns. We propose a portfolio construction method that incorporates the complex valued principal component analysis into the risk diversification
Kadoya, Takanori   +2 more
arxiv   +3 more sources

SPARC the Change: What the Strategic Purchasing Africa Resource Center Has Learned about Improving Strategic Health Purchasing in Africa

open access: yesHealth Systems & Reform, 2022
Embodied in the goals of universal health coverage (UHC) are societal norms about ethics, equity, solidarity, and social justice. As African countries work toward UHC, it is important for their governments to use all available resources, knowledge, and ...
Cheryl Cashin   +4 more
doaj   +1 more source

Introduction to the Special Issue on Making Progress on Strategic Health Purchasing in Africa

open access: yesHealth Systems & Reform, 2022
[Figure: see text]
Agnes Gatome-Munyua, Cheryl Cashin
doaj   +1 more source

Bidirectional spillover effect between Russian stock index and the selected commodities [PDF]

open access: yesZbornik radova Ekonomskog fakulteta u Rijeci : časopis za ekonomsku teoriju i praksu, 2018
This paper investigates shock and volatility spillover effect between Russian index RTS and six futures commodities (Brent oil, natural gas, gasoline, gold, platinum and palladium), observing joint time-frequency domain via wavelet decomposed series ...
Dejan Živkov   +2 more
doaj   +1 more source

Intelligente Strategien: Richtiges Erkennen und gute Auswahl in einer komplexen Welt

open access: yesHeidelberger Jahrbücher Online, 2022
Wir leben in einer Welt, in der unser Handeln und Planen zunehmend über mannigfaltige Verknüpfungen und Rückkopplungen beeinflusst wird. Die für unsere Ziele und Ausgangssituation relevanten Zusammenhänge können wir weder vollständig erfassen noch ...
Dietrich Firnhaber
doaj   +1 more source

Daily Consumption of an Anthocyanin-Rich Extract Made From New Zealand Blackcurrants for 5 Weeks Supports Exercise Recovery Through the Management of Oxidative Stress and Inflammation: A Randomized Placebo Controlled Pilot Study

open access: yesFrontiers in Nutrition, 2020
Background: Regular exercise is essential to a healthy lifestyle but evokes an oxidative and inflammatory stress. Depending upon its intensity and duration this can result in either beneficial adaptive changes or underlying tissue damage that impacts ...
Roger D. Hurst   +6 more
doaj   +1 more source

Corticosteroid therapy versus physiotherapy on pain, mobility and function in shoulder impingement: A short note

open access: yesSouth African Journal of Physiotherapy, 2022
Background: The global estimate of shoulder pain is 67% and is often associated with subacromial impingement syndrome. Interventions include corticosteroid injection (CSI) therapy and physiotherapy.
Natalie Benjamin-Damons   +4 more
doaj   +1 more source

The influence of Bitcoin on Portfolio Diversification and Design

open access: yesSocial Science Research Network, 2020
We employ a VARMA DCC-GARCH model to search for portfolio diversification with Bitcoin in global industry portfolios and bond index. We find lower dynamic conditional correlations between Bitcoin and industry portfolios and bond index, allowing an ...
M. Akhtaruzzaman, A. Şensoy, S. Corbet
semanticscholar   +1 more source

From a Pathophysiological Concept to a New Drug

open access: yesEuropean Psychiatry, 2022
Although antipsychotics were discovered over fifty years ago, it took another decade until dopamine antagonism was demonstrated as central to their clinical effectiveness.
G. Németh
doaj   +1 more source

Characterization of Optical Coherence Tomography Images Acquired at Large Distances With Large-Diameter Beams

open access: yesIEEE Photonics Journal, 2014
We tested the imaging capabilities for variants of a 1550-nm swept-source fiber-based optical coherence tomography system with a telecentric system incorporated at the end of its sample arm. The system was designed for in vivo imaging of burns; therefore,
Dan P. Popescu   +2 more
doaj   +1 more source

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