Results 41 to 50 of about 743,903 (298)

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

METHODOLOGICAL PROBLEMS OF STATISTICAL ASSESSMENT OF THE SOCIO-ECONOMIC DEVELOPMENT OF REGIONS

open access: yesСтатистика и экономика, 2016
In recent years, increased attention is paidto the various aspects of applied analysisof individual subjects of our country. In thiscontext, the great scientific and practicalinterest is the systematization of problemsgeneralizing the statistical ...
Elena N. Volkova
doaj   +1 more source

EU Competition Law Put to the Brexit Test:What Impact Might the Exit of the UK from the Union Haveon the Enforcement of the Competition Rules? [PDF]

open access: yesYearbook of Antitrust and Regulatory Studies, 2018
This contribution examines some of the consequences of the UK’s exit from the European Union for the enforcement of the competition rules. It reflects on the impact that Brexit is going to have on future transnational antitrust litigation in Britain and ...
Arianna Andreangeli
doaj   +1 more source

An empirical analysis of debit card interchange fee regulation: Evidence from Brazil

open access: yesLatin American Journal of Central Banking, 2023
This paper presents an empirical analysis of the introduction, in October 2018, of maximum thresholds (“caps”) on debit card interchange fees for domestic payment cards in Brazil.
Daniel Tavares de Castro   +2 more
doaj   +1 more source

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

PROBLEMS OF INTEGRAL STATISTICAL EVALUATION OF SOCIAL-ECONOMIC DEVELOPMENT REGION

open access: yesСтатистика и экономика, 2016
In recent years, increased attention is paidto the various aspects of applied analysisof individual subjects of our country. In thiscontext, the great scientific and practicalinterest is the systematization of problemsgeneralizing the statistical ...
Elena N. Volkova
doaj   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Piracy and Competition [PDF]

open access: yesSSRN Electronic Journal, 2005
The effects of (private, small‐scale) piracy on the pricing behavior of producers of information goods are studied within a unified model of vertical differentiation. Although information goods are assumed to be perfectly differentiated, demands are interdependent because the copying technology exhibits increasing returns to scale. We characterize the
Picard, Pierre   +2 more
openaire   +8 more sources

An economic approach to parallel imports effects and competition policy [PDF]

open access: yesRussian Journal of Economics, 2020
Parallel imports have been treated very differently in different countries. In the EU, competition law’s very strong (per se) prohibition of restrictions to parallel imports (PI) can be justified by traditional “public interest” concerns related to the ...
Yannis Katsoulacos, Kalliopi Benetatou
doaj   +3 more sources

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

open access: yesFEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää   +2 more
wiley   +1 more source

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