Results 91 to 100 of about 38,259 (257)

Effects of cluster galaxies on arc statistics [PDF]

, 1999
We present the results of a set of numerical simulations evaluating the effect of cluster galaxies on arc statistics. We perform a first set of gravitational lensing simulations using three independent projections for each of nine different galaxy ...
Bartelmann M., Bartelmann M., Bartelmann M., Bartelmann M., Bernstein G. M., De Propris R., Flores R. A., G. Tormen, L. Moscardini, Lobo C., M. Bartelmann, M. Bolzonella, M. Meneghetti, Miralda-Escude J., Navarro J. F., Navarro J. F., Perlmutter S., Press W. H., Richstone D. O., Tormen G., Van der Marel R. P., Vedel H., White S. D. M.   +22 more
core   +2 more sources

Forecasting Value-at-Risk Using Conditional Volatility Models: Evidence from Tehran Stock Exchange [PDF]

تحقیقات مالی, 2008
In this paper, we investigate the performance of parametric ARCH class models to forecast out-of-sample VaR for two portfolios of Tehran Stock Exchange (TSE) companies (Market portfolio and a portfolio of 50 liquid companies), using a number of ...
شاپور محمدی, رضا راعی, آرش فیض‌آباد   +2 more
doaj  

Validity of Weak-Form Market Efficiency in Central and Eastern European Countries (CEECs): Evidence from Linear and Nonlinear Unit Root Tests

Review of Economic Perspectives, 2019
This paper aims to focus weekly stock market prices from the CEECs (Lithuania, Hungary, Romania, Croatia, Slovenia, Poland, Bulgaria, the Slovak Republic, Latvia, Estonia, and the Czech Republic) markets for evidence of weak-form market efficiency.
Erdas Mehmet Levent
doaj   +1 more source

Is the cryptocurrency market efficient? Evidence from an analysis of fundamental factors for Bitcoin and Ethereum

International Journal of Management and Economics, 2022
This article sheds new light on the informational efficiency of the cryptocurrency market by analyzing investment strategies based on structural factors related to on-chain data. The study aims to verify whether investors in the cryptocurrency market can
Łęt Blanka, Sobański Konrad, Świder Wojciech, Włosik Katarzyna   +3 more
doaj   +1 more source

Photoreceptor degeneration has heterogeneous effects on functional retinal ganglion cell types

The Journal of Physiology, EarlyView.
Abstract figure legend Photoreceptor loss has heterogeneous effects on functional retinal ganglion cell (RGC) types. A, illustrations of cross‐sections of rd10 retinae at different time points during degeneration. Left: P30, rod degeneration has commenced, cones are still unaffected.
Nadine Dyszkant, Jonathan Oesterle, Yongrong Qiu, Merle Harrer, Timm Schubert, Dominic Gonschorek, Thomas Euler   +6 more
wiley   +1 more source

Estrogen Rapidly Enhances Incisional Pain of Ovariectomized Rats Primarily through the G Protein-Coupled Estrogen Receptor

International Journal of Molecular Sciences, 2014
It has become increasingly apparent that the pain threshold of females and males varies in an estrogen dependent manner. To investigate the modulation of pain by estrogen and the molecular mechanisms involved in this process.
Guanghui An, Wenhui Li, Tao Yan, Shitong Li   +3 more
semanticscholar   +1 more source

Note on a NAHE Variation

, 2011
We present a variation of the NAHE-basis for free fermionic heterotic string models. By rotating some of the boundary conditions of the NAHE periodic/anti-periodic fermions {y^m, \bar{y}^m, w^m, \bar{w}^m,}, for m = 1 to 6, associated with the six ...
Ali, Tibra, Cleaver, Gerald, Greenwald, Jared, Moore, Douglas, Pechan, Kristen, Renner, Tim   +5 more
core   +1 more source

Effect of Monetary Policy Decisions and Announcements on the Price of Cryptocurrencies: An Elastic-Net With Arima Residuals Approach

Economics and Culture
This study analysed the three cryptocurrencies with the largest market capitalization: Bitcoin, Ether (cryptocurrency built upon the Ethereum project's blockchain technology), and Binance coin, which account for 60% of the total cryptocurrency market ...
Peciulis Tomas, Vasiliauskaite Asta
doaj   +1 more source

Return Dynamics and Volatility Spillovers Between FOREX and Stock Markets in MENA Countries: What to Remember for Portfolio Choice?

International Journal of Management and Economics, 2015
This article investigates the interdependence of stock-forex markets in MENA (Middle East and North Africa) countries for the February 26, 1999 to June 30, 2014 period.
Arfaoui Mongi, Ben Rejeb Aymen
doaj   +1 more source

Nominal exchange rates EUR/GRD and EUR/ITL in the context of leaving the euro zone by Greece and Italy

Journal of Economics and Management, 2021
Aim/purpose – The aim of this paper is to present two cases of crises in Greece and Italy and to evaluate the shadow exchange rates of hypothetical new currencies (re)introduced after Grexit and Italexit.
Dąbrowska-Gruszczyńska Katarzyna, Gruszczyński Marcin   +1 more
doaj   +1 more source