Long term periodicity analysis of the spectral index of 2251+158

2011 ◽  
Vol 11 (3) ◽  
pp. 286-292 ◽  
Author(s):  
Yu-Hai Yuan ◽  
Jun-Hui Fan
Keyword(s):  
Spectral Index ◽  
Periodicity Analysis

Optical Photometry of the Quasar 3C 454.3 during the Period 2006–2018 and the Long-term Periodicity Analysis

2021 ◽  
Vol 253 (1) ◽  
pp. 10
Author(s):  
J. H. Fan ◽  
S. O. Kurtanidze ◽  
Y. Liu ◽  
O. M. Kurtanidze ◽  
M. G. Nikolashvili ◽  
...  
Keyword(s):  
Optical Photometry ◽  
Periodicity Analysis

Long Term Periodicity Analysis of OJ 287 at Optical V Waveband

2014 ◽  
Vol 35 (3) ◽  
pp. 301-305 ◽  
Author(s):  
Jie Tang ◽  
Hao-Jing Zhang ◽  
Qiao Pang
Keyword(s):  
Periodicity Analysis

PERIODICITY ANALYSIS OF THE SPECTRAL INDEX IN 3C 273 AND 3C 446

2010 ◽  
Vol 19 (06) ◽  
pp. 901-907 ◽  
Author(s):  
YU-HAI YUAN ◽  
JUN-HUI FAN
Keyword(s):  
Correlation Analysis ◽  
Spectral Index ◽  
Radio Astronomy ◽  
Preliminary Data ◽  
University Of Michigan ◽  
Spectral Indices ◽  
Astronomy Observatory ◽  
Periodicity Analysis ◽  
Index Variation ◽  
Index Calculation

In this work, we used the preliminary data of University of Michigan Radio Astronomy Observatory (UMRAO) for the spectral index calculation for two blazars, 3C 273 (1226+023) and 3C 446 (2223-052), and found that the spectral indices are variable. Therefore, we used three methods (Jurkevich method (J), the discrete correlation analysis (D), and the Periodogram method (P)) to investigate the period in the spectral index variation curves. The results show that 3C 273 has a quasi-period of 8.8 ± 1.3 yr , and 3C 446 has a period of 5.8 ± 1.2 yr .

Therapy and prevention for mental health: What if mental diseases are mostly not brain disorders?

2019 ◽  
Vol 42 ◽  
Author(s):  
John P. A. Ioannidis
Keyword(s):  
Mental Health ◽  
Mental Disease ◽  
Brain Disorders ◽  
Social Stressors ◽  
Labor Education ◽  
Mental Diseases ◽  
Long Term Follow Up ◽  
Political Decisions

AbstractNeurobiology-based interventions for mental diseases and searches for useful biomarkers of treatment response have largely failed. Clinical trials should assess interventions related to environmental and social stressors, with long-term follow-up; social rather than biological endpoints; personalized outcomes; and suitable cluster, adaptive, and n-of-1 designs. Labor, education, financial, and other social/political decisions should be evaluated for their impacts on mental disease.

Conceptual short-term memory (CSTM) supports core claims of Christiansen and Chater

2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter
Keyword(s):  
Working Memory ◽  
Rapid Serial Visual Presentation ◽  
Language Comprehension ◽  
Short Term Memory ◽  
Visual Presentation ◽  
Long Term Memory ◽  
Short Term ◽  
Term Memory ◽  
Use Of Knowledge

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.

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