Results 1 to 10 of about 6,800 (160)

Injection but not ingestion of a mixed virus suspension in Queensland fruit fly (Bactrocera tryoni) shifts persistent covert infection to acute pathology. [PDF]

Pest Manag Sci
Covert and persistent infections with multiple insect‐specific viruses are common in pest fruit flies and may affect pest management strategies. Our study investigated the host effects and viral loads of cripavirus and iflavirus as persistent infections in Queensland fruit fly, and after injection and ingestion of a mixed virus suspension containing ...
Sharpe SR, Morrow JL, Tilden G, Katlav A, Riegler M.   +4 more
europepmc   +2 more sources

Metcalfe's law and log-period power laws in the cryptocurrencies market

Economics: Journal Articles, 2019
In this paper the authors investigate the statistical properties of some cryptocurrencies by using three layers of analysis: alpha-stable distributions, Metcalfe’s law and the bubble behaviour through the LPPL modelling.
Pele Daniel Traian, Mazurencu-Marinescu-Pele Miruna   +1 more
doaj   +1 more source

Policy Recommendations for Enhancing the Competitiveness and Business Performance of Digital Banks in Vietnam

ECONOMICS
The digital transformation of the banking sector is reshaping competitive dynamics, requiring institutions to align technological innovation with service quality, human capital, and customer experience. Despite growing global attention, limited empirical
Vy Phan Dien, Tam Phan Thanh
doaj   +1 more source

Differentiations in Gene Content and Expression Response to Virulence Induction Between Two Agrobacterium Strains

Frontiers in Microbiology, 2019
Agrobacterium tumefaciens is important in biotechnology due to its ability to transform eukaryotic cells. Although the molecular mechanisms have been studied extensively, previous studies were focused on the model strain C58.
Mindia Haryono, Shu-Ting Cho, Mei-Jane Fang, Ai-Ping Chen, Shu-Jen Chou, Erh-Min Lai, Chih-Horng Kuo   +6 more
doaj   +1 more source

Overexpression and characterization of hydantoin racemase from Agrobacterium tumefaciens C58

Biochemical and Biophysical Research Communications, 2003
Hydantoin racemase enzyme together with a stereoselective hydantoinase and a stereospecific D-carbamoylase guarantee the total conversion from D,L-5-monosubstituted hydantoins with a low velocity of racemization to optically pure D-amino acids. In this work we have cloned and expressed the hydantoin racemase gene from two strains of Agrobacterium ...
Las Heras Vázquez, Francisco Javier, Martínez Rodríguez, Sergio, Mingorance Cazorla, Lidia, Clemente Jiménez, Josefa María, Rodríguez Vico, Felipe   +4 more
openaire   +3 more sources

The Technological Bridge: R Programming’s Utility in Converting Social Media Data for Quantitative Financial Analysis

Economics and Culture
This study explores whether R programming can transform unstructured qualitative social media data into a quantitative format suitable for econometric modelling. It specifically examines how elements such as text, emojis, and sentiment from Reddit and X (
Litvinenko Alexey, Samuli Saarinen, Litvinenko Anna   +2 more
doaj   +1 more source

Does financial market stress matter in renewable energy investment? Empirical evidence from BRICS economies

Energy Strategy Reviews
Policymakers in BRICS economies face several financial risks in increasing their level of investment in renewable energy. This is because investment in renewable energy is crucial in light of climate change.
Mohammed Armah, Ebenezer Bugri Anarfo, Emmanuel Numapau Gyamfi, Godfred Amewu   +3 more
doaj   +1 more source

Revisiting the predictive prowess of economic policy uncertainty (EPU) in stock market volatility: GEPU or NEPU?

Scientific African
We employ the Generalized Autoregressive Conditional Heteroskedasticity (GARCH) variant of the Mixed Data Sampling (MIDAS) [GARCH-MIDAS] model to revisit the forecasting prowess of economic policy uncertainty (EPU) in the predictability of stock market ...
Kazeem O. Isah, Sheriff K. Badmus, Oluwafemi D. Ogunjemilua, Johnson O. Adelakun, Yusuf Yakubu   +4 more
doaj   +1 more source

[¹⁸F]FDG metabolic brain network in C58/J strain: an autism murine model. [PDF]

Brain Struct Funct
Verdugo-Díaz L, Martínez-Guerrero A, García-García DC, Avedaño-Estrada A, Ávila-Rodríguez MÁ, Garzón-Cortés D, Martínez-Marcial M, Canuto-Ramírez V, Roldán-Roldán G, Ibarra-Coronado E.   +9 more
europepmc   +1 more source

Synthesis and crystal structure of 5,17-di-amino-11-<i>tert</i>-butyl-25,26,27,28-tetra-prop-oxy-23-[(tri-phenyl-meth-yl)amino]-calix[4]arene di-chloro-methane monosolvate. [PDF]

Acta Crystallogr E Crystallogr Commun
Alekseev I, Bezzubov S, Gorbunov A, Kovalev V, Vatsouro I.   +4 more
europepmc   +1 more source