Results 281 to 290 of about 153,900 (312)

An Economic Analysis of Difficulty Adjustment Algorithms in Proof‐of‐Work Blockchain Systems

International Economic Review, EarlyView.
ABSTRACT We study the stability of cryptocurrency systems through difficulty adjustment. Bitcoin's difficulty adjustment algorithm (DAA) exhibits instability when the reward elasticity of the hash rate is high, implying that a sharp price reduction could disrupt the current Bitcoin system.
Shunya Noda, Kyohei Okumura, Yoshinori Hashimoto   +2 more
wiley   +1 more source

Prediction of myopia onset and shift in premyopic school-aged children: a machine learning-based algorithm. [PDF]

Front Med (Lausanne)
Gao M, Hou Y, Lu Y, Shi Z, Zhao Q.
europepmc   +1 more source

Games Between Players With Dual‐Selves

International Economic Review, EarlyView.
ABSTRACT Human decision making often seems to be determined by the resolution of intrapersonal conflict. This paper conceptualizes the analysis of decisions governed by such dual‐self processes in individual decision contexts and strategic interactions.
Simon Dato, Andreas Grunewald, Andreas Klümper   +2 more
wiley   +1 more source

Impact of Myopia Control Interventions on Choroidal Thickness in Children: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. [PDF]

Ophthalmol Sci
Martinez-Perez C, Oliveira AP.
europepmc   +1 more source

Linkage Between Electoral Cycle and the Discouragement of African Firms in the Credit Market

International Finance, EarlyView.
ABSTRACT This article analyzes the linkage between the electoral cycle and the discouragement of SMEs in the credit market of 14 African countries. It focuses on 12,145 firms over the period 2006–2020. The results obtained from Probit estimates show elections are negatively linked with the discouragement of firms in the credit market.
Cherif Abdramane, Simplice A. Asongu
wiley   +1 more source

Characteristics of Retinal Oxygen Kinetics and Blood Flow in Myopia of Different Degrees. [PDF]

Invest Ophthalmol Vis Sci
Ding X, Hu J, Ma Y, Yu Y, Xiao Y, Bao Y, Wang Z, Zhou X, Zhao J.   +8 more
europepmc   +1 more source

Hemoglobin oxygen saturation in myopic eyes: a scanning laser ophthalmoscope study. [PDF]

Int J Ophthalmol
Xiao ZX, Qiu KL, Zhou H, Zheng DZ, Ng TK, Wang G.   +5 more
europepmc   +1 more source

Localized Choriocapillaris Flow Deficits at Perforating Vessel Sites in Myopic Eyes. [PDF]

Invest Ophthalmol Vis Sci
Quarta A, Feo A, Romano F, Borrelli E, Corvi F, Palumbo U, Olivieri C, Corradetti G, Abbasgholizadeh R, Alhelaly M, Chujo S, Popovic M, Soylu C, Rattu R, Nittala MG, Reibaldi M, Staurenghi G, Sadda SR.   +17 more
europepmc   +1 more source

National Trends and Risk Factors of Myopia among Primary and Secondary School Students in China: A Population-Based Screening Study across 19 Provinces (2019–2023)

Qinrui Hu, Taoling Zhong, Yang Li, Jiajia Lin, Xinping Yan, Chao Huang, Xiaofeng Li, Ziwen Huang, Shengqi Su, Zhigang Hu, Qiyuan Li, Xiaoxin Li   +11 more
openalex   +1 more source

Optimizing myopia prediction in children and adolescents using machine learning: a multi-factorial risk assessment model. [PDF]

Front Med (Lausanne)
Xi Y, Zhu W, Yan W, Wei X, Zhao Q, Dai S.   +5 more
europepmc   +1 more source