Results 71 to 80 of about 7,139 (200)

Redundancy and Specificity of Type VI Secretion vgrG Loci in Antibacterial Activity of Agrobacterium tumefaciens 1D1609 Strain

open access: yesFrontiers in Microbiology, 2020
Type VI secretion system (T6SS) is a contractile nanoweapon employed by many Proteobacteria to deliver effectors to kill or inhibit their competitors.
Mary Nia M. Santos   +11 more
doaj   +1 more source

What drives food price volatility? Evidence based on a generalized VAR approach applied to the food, financial and energy markets

open access: yesEconomics: Journal Articles, 2019
The aim of this study is to investigate sources of food prices volatility. The analysis uses daily series for volatility of corn, soybean, wheat, rice, US dollar, crude oil, and SP500 futures spanning the period January 4, 2000 to April 1, 2017.
Śmiech Sławomir   +3 more
doaj   +1 more source

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

open access: yesEconomics 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   +2 more
doaj   +1 more source

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

open access: yesEconomics: 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   +1 more
doaj   +1 more source

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

open access: yesFrontiers 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   +6 more
doaj   +1 more source

Overexpression and characterization of hydantoin racemase from Agrobacterium tumefaciens C58

open access: yesBiochemical 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   +4 more
openaire   +3 more sources

The Impact of Stock Prices of Polluting Energy Sources on Renewable Energy Stock Index Prices

open access: yesFolia Oeconomica Stetinensia
The link between the price of polluting energy supplies and the renewable energy stock index may be intricate and subtle. Investors need to conduct thorough inquiries and analyses to completely understand the correlation between these industries.
Serap Vurur N.   +3 more
doaj   +1 more source

The effect of the Israel-Hamas conflict on carbon markets: Evidence from the European Union Emissions Trading System

open access: yesJournal of Economics and Management
Aim/purpose – This study investigates the impact of the Israel-Hamas conflict on carbon emission allowance prices within the European Union Emissions Trading System (EU ETS).
Tanıl Eyüp   +3 more
doaj   +1 more source

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

open access: yesECONOMICS
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

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