Results 51 to 60 of about 132,339 (282)

Mean–variance relationship and uncertainty [PDF]

Seonmul yeongu, 2022
This study investigates the impact of uncertainty on the mean-variance relationship. We find that the stock market's expected excess return is positively related to the market's conditional variances and implied variance during low uncertainty periods ...
Jun Sik Kim
doaj   +1 more source

Modulational instability in binary spin-orbit-coupled Bose-Einstein condensates

, 2020
We study modulation instability (MI) of flat states in two-component spin-orbit-coupled (SOC) Bose-Einstein condensates (BECs) in the framework of coupled Gross-Pitaevskii equations for two components of the pseudospinor wave function.
Bhat, Ishfaq Ahmad, Malomed, B. A., Mithun, T., Porsezian, K.   +3 more
core   +1 more source

The Relation between Risk and Expected Return of Manfa’at Sukuk [PDF]

تحقیقات مالی اسلامی (پیوسته), 2019
Risk and return are key concepts in financial science and are actually considered to be the two sides of the investment coin. Since Islamic finance instruments are emerging tools in Islamic countries, especially in Iranian capital market, identifying the
MajId Shariat Panahi, Jala l Sadeghi Sharif, Mohamad Osoolian, Akram Bodaghi   +3 more
doaj  

Phylogeography and evolutionary analysis of African Rotavirus a genotype G12 reveals district genetic diversification within lineage III

Heliyon, 2019
Group A rotavirus (RVA) genotype G12 has spread globally and has become one of the most prevalent genotypes of rotavirus in Africa. To understand the drivers for its genetic diversity and rapid spread we investigated the Bayesian phylogeography, viral ...
Babatunde Olanrewaju Motayo, Olukunle Oluwapamilerin Oluwasemowo, Babatunde Adebiyi Olusola, Adewale Victor Opayele, Adedayo Omotayo Faneye   +4 more
doaj   +1 more source

Genetic characterization of G12P[6] and G12P[8] rotavirus strains collected in six African countries between 2010 and 2014

BMC Infectious Diseases, 2021
Background G12 rotaviruses were first observed in sub-Saharan Africa in 2004 and since then have continued to emerge and spread across the continent and are reported as a significant human rotavirus genotype in several African countries, both prior to ...
Kebareng G. Rakau, Martin M. Nyaga, Maemu P. Gededzha, Jason M. Mwenda, M. Jeffrey Mphahlele, L. Mapaseka Seheri, A. Duncan Steele   +6 more
doaj   +1 more source

Asteroid taxonomic signatures from photometric phase curves

, 2012
We explore the correlation between an asteroid's taxonomy and photometric phase curve using the H, G12 photometric phase function, with the shape of the phase function described by the single parameter G12.
Antti Penttilä, Barucci, Belskaya, Binzel, Bus, Capaccioni, Cellino, Cristina A. Thomas, Dagmara Anna Oszkiewicz, David E. Trilling, DeMeo, Edward Bowell, Florczak, Florczak, Gehrels, Goidet-Devel, Gradie, Harris, Harris, Howell, Ivežić, Kaasalainen, Kaasalainen, Karri Muinonen, L.H. Wasserman, Lagerkvist, Lazzaro, Lazzaro, Mothé-Diniz, Mothé-Diniz, Muinonen, Muinonen, Nelder, Oszkiewicz, Parker, Scaltriti, Tedesco, Thomas, Tuomo Pieniluoma, Xu, Yoshida   +40 more
core   +1 more source

Whole Genome Analysis of African G12P[6] and G12P[8] Rotaviruses Provides Evidence of Porcine-Human Reassortment at NSP2, NSP3, and NSP4

Frontiers in Microbiology, 2021
Group A rotaviruses (RVA) represent the most common cause of pediatric gastroenteritis in children <5 years, worldwide. There has been an increase in global detection and reported cases of acute gastroenteritis caused by RVA genotype G12 strains ...
Fortunate Mokoena, Fortunate Mokoena, Mathew Dioh Esona, Luyanda Mapaseka Seheri, Martin Munene Nyaga, Nonkululelo Bonakele Magagula, Arnold Mukaratirwa, Augustine Mulindwa, Almaz Abebe, Angeline Boula, Enyonam Tsolenyanu, Julia Simwaka, Kebareng Giliking Rakau, Ina Peenze, Jason Mathiu Mwenda, Maphahlaganye Jeffrey Mphahlele, Andrew Duncan Steele, Andrew Duncan Steele, African Rotavirus Surveillance Network   +18 more
doaj   +1 more source

The Impact of Acquisition on Stock Value in Case of Warsaw Stock Exchange

Economics and Culture, 2019
Research purpose: Seven of 10 companies that have won the Polish Forbes edition Merge & Acquisition 2018 Ranking are listed on Warsaw Stock Exchange. The aim of the conducted research was to test if the biggest acquisitions have an impact on stocks value
Kaczmarczyk Wojciech
doaj   +1 more source

Investors’ attention: does it impact the Nigerian stock market activities? [PDF]

Journal of Economics and Development, 2020
Purpose – The author investigates whether investors’ online information demand measured by Google search query and the changes in the numbers of Wikipedia page view can explain and predict stock return, trading volume and volatility dynamics of companies
Osarumwense Osabuohien-Irabor
doaj   +1 more source

A generalization of Szebehely's inverse problem of dynamics in dimension three [PDF]

, 2016
Extending a previous paper, we present a generalization in dimension 3 of the traditional Szebehely-type inverse problem. In that traditional setting, the data are curves determined as the intersection of two families of surfaces, and the problem is to ...
Mestdag, T., Prince, G., Sarlet, W.
core   +3 more sources