Results 61 to 70 of about 1,433,403 (294)

Comparisons Between Frequency Distributions Based on Gini’s Approach: Principal Component Analysis Addressed to Time Series

Econometrics
In this paper, time series of length T are seen as frequency distributions. Each distribution is defined with respect to a statistical variable having T observed values.
Pierpaolo Angelini
doaj   +1 more source

Scale-free download network for publications

, 2004
The scale-free power-law behavior of the statistics of the download frequency of publications has been, for the first time, reported. The data of the download frequency of publications are taken from a well-constructed web page in the field of economic ...
Cai Xiang-Zhou, Erdos P, Han Ding-Ding, Laherrere J, Liu Jin-Gao, Ma Y G, Ma Yu-Gang, Newman N E J, Redner S, Shen Wen-Qing, Tsallis C, Tsallis C, Wilk G, Zipf G K   +13 more
core   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Interpretable Evaluation of Sparse Time–Frequency Distributions: 2D Metric Based on Instantaneous Frequency and Group Delay Analysis

Mathematics
Compressive sensing in the ambiguity domain offers an efficient method for reconstructing high-quality time–frequency distributions (TFDs) across diverse signals.
Vedran Jurdana
doaj   +1 more source

Replicating financial market dynamics with a simple self-organized critical lattice model

, 2010
We explore a simple lattice field model intended to describe statistical properties of high frequency financial markets. The model is relevant in the cross-disciplinary area of econophysics.
B. Dupoyet, Bak, Bak, Bak, Bak, Bak, Bartolozzi, Bollerslev, D.P. Musgrove, Dupoyet, Engle, Feigenbaum, Granger, H.R. Fiebig, Ilinski, Jensen, Levenberg, Levy, Lunde, Mandelbrot, Mantegna, Marcel Ausloos, Marquardt, Paczuski, Poon, Rydén, Sornette, Stauffer, Turcotte   +28 more
core   +1 more source

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi, Daisuke Katagiri, Takeyuki Watadani, Shunichi Matsuda, Hiroshi Kaneko, Noritoshi Arai   +5 more
wiley   +1 more source

Stock market return distributions: from past to present

, 2007
We show that recent stock market fluctuations are characterized by the cumulative distributions whose tails on short, minute time scales exhibit power scaling with the scaling index alpha > 3 and this index tends to increase quickly with decreasing ...
Drożdż, Farmer, Farmer, Gabaix, Gopikrishnan, Huang, J. Kwapień, Kwapień, Kwapień, Lux, M. Forczek, Mandelbrot, Mantegna, Matia, P. Oświe¸cimka, Plerou, R. Rak, Rak, S. Drożdż, Skjeltorp, Tsallis, Tsallis   +21 more
core   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

Small inter-event times govern epidemic spreading on networks

Physical Review Research, 2020
Many aspects of human and animal interaction, such as the frequency of contacts of an individual, the number of interaction partners, and the time between the contacts of two individuals, are characterized by heavy-tailed distributions.
Naoki Masuda, Petter Holme
doaj   +1 more source

This Is Not a Myeloproliferative Neoplasm…

Pediatric Blood &Cancer, EarlyView.
Stephanie Juané Kennedy
wiley   +1 more source