Results 31 to 40 of about 76,438 (184)

Optimization of quantum cascade laser operation by geometric design of cascade active band in open and closed models [PDF]

, 2013
Using the effective mass and rectangular potential approximations, the theory of electron dynamic conductivity is developed for the plane multilayer resonance tunnel structure placed into a constant electric field within the model of open nanosystem, and
Boyko, I. V., Seti, Ju. O., Tkach, M. V., Voitsekhivska, O. M.   +3 more
core   +4 more sources

Global Economic Uncertainties and Exchange Rate Management in Africa: A Panel Study

Acta Universitatis Sapientiae: Economics and Business, 2022
This study investigates the effects of global economic uncertainties on exchange rate management in Africa from 1990 to 2021. Employing the quantile regression technique, findings show that both global and domestic economic uncertainties have significant
Adedokun Adeniyi J., Falayi Olabusuyi R., Adeyemi Francis O., Kumeka Terver T.   +3 more
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

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

N-order bright and dark rogue waves in a Resonant erbium-doped Fibre system

, 2012
The rogue waves in a resonant erbium-doped fibre system governed by a coupled system of the nonlinear Schr\"odinger equation and the Maxwell-Bloch equation (NLS-MB equations) are given explicitly by a Taylor series expansion about the breather solutions ...
He, Jingsong, Porseizan, K., Xu, Shuwei
core   +1 more source

The Threshold Effect of Exchange Rate on Economic Growth in Brazil, Russia, India, China and South Africa (BRICS) Countries

ECONOMICS
This article examines the threshold effect of exchange rates on economic growth in BRICS countries from 1994 - 2022. The paper employed the Panel Threshold regression (PTR) model to explore how exchange rate fluctuations influence economic growth across ...
Molocwa Goitsemodimo Abel, Choga Ireen
doaj   +1 more source

Relationships between exchange rate regime, real exchange rate volatility and currency structure of government bonds in emerging markets

Review of Economic Perspectives, 2020
Public foreign currency borrowing is a common problem of emerging markets. Scholars named it the original sin of foreign debt. It has a proven negative influence on economic growth and development, undermining financial stability, and increasing the ...
Dudzich Viktar
doaj   +1 more source

Mental Health Conditions and Incident Cancer: A Prospective Cohort Study of 402,255 UK Biobank Participants

International Journal of Cancer, EarlyView.
Evidence suggests a potential association between mental health conditions and cancer risk, yet previous studies were limited by small samples and the use of self‐reported measures. Using data from the UK Biobank's large‐scale prospective population cohort over a median follow‐up of 13.4 years, this analysis demonstrates associations between depression,
Mohammed Sherif Amin, Solange Parra‐Soto, Ziyi Zhou, Shinya Nakada, Ike Dhiah Rochmawati, Carlos Celis‐Morales, Nancy Meligy, Jill P. Pell, Frederick K. Ho   +8 more
wiley   +1 more source

Changes in Functional Connectivity Associated with Treatment Gains in Aphasia [PDF]

, 2013
NIDCD/NIH (F31 NRSA grant 1F31DC011220-01A1); Boston University Sargent College (Dudley Allen Sargent Research ...
Kiran, Swathi, Sandberg, Chaleece
core   +1 more source

An Investigation of Equivalence Principle Violations Using Solar Neutrino Oscillations in a Constant Gravitational Potential

, 1996
Neutrino oscillations induced by a flavor-dependent violation of the Einstein Equivalence Principle (VEP) have been recently considered as a suitable explanation of the solar electron-neutrino deficiency.
A. Acker, A. Halprin, A. Halprin, G. L. Fogli, H. Minakata, H. W. Zaglauer, Hisakazu Minakata, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. R. Mureika, J. R. Mureika, J. R. Mureika, L. Wolfenstein, M. Gasperini, Myron L. Good, N. Butler, R. B. Mann, S. P. Mikheyev, S. Weinberg, V. Barger   +21 more
core   +3 more sources