Results 71 to 80 of about 150,134 (327)

Granger causality for circular variables

, 2009
In this letter we discuss use of Granger causality to the analyze systems of coupled circular variables, by modifying a recently proposed method for multivariate analysis of causality.
Barabasi, Blinowska, Boccaletti, Boccaletti, Brede, Chen, Dhamala, Dunbar, Faes, Granger, Hlavackova-Schindler, Kaminski, Kuramoto, Leonardo Angelini, Lopez, Marinazzo, Marinazzo, Mario Pellicoro, Pikovsky, Rosenblum, Schreiber, Sebastiano Stramaglia, Seth, Sheeba, Smirnov, Tass, Winfree   +26 more
core   +1 more source

Synergy and redundancy in the Granger causal analysis of dynamical networks [PDF]

, 2014
We analyze by means of Granger causality the effect of synergy and redundancy in the inference (from time series data) of the information flow between subsystems of a complex network.
Cortes, Jesus M., Marinazzo, Daniele, Stramaglia, Sebastiano   +2 more
core   +3 more sources

Genetic Control of Tissue Remodeling by a Non‐Coding SNP in ITGA8 Explains Carotenoid‐Based Color Polymorphism in Marine Mollusks

Advanced Science, EarlyView.
In this study, the orange‐muscle giant abalone (Haliotis gigantea) is used as a model to identify a non‐coding SNP that disrupts the interaction between ITGA8 pre‐mRNA and the splicing factor ILF2, leading to altered ITGA8 splicing. These splicing changes promote carotenoid accumulation in abalone muscle through the regulation of tissue remodeling ...
Xiaohui Wei, Wenzhu Peng, Zekun Huang, Bingye Yang, Yiyu Wu, Minzhen Han, Yi Wang, Bingling Peng, Guosheng Hu, Jiawei Hong, Guijia Liu, Linwei Nie, Yang Gan, Miaoqin Huang, Xuan Luo, Weiwei You, Wen Liu, Caihuan Ke   +17 more
wiley   +1 more source

Relationship between uncertainty in the oil and stock markets before and after the shale gas revolution: Evidence from the OVX, VIX, and VKOSPI volatility indices.

PLoS ONE, 2020
We investigate the relationship between crude oil prices and stock markets. Unlike prior studies, we use implied volatility indices and evaluate the change in the relationship between the volatility indices through a sub-period analysis. Specifically, we
Sun-Yong Choi, Changsoo Hong
doaj   +1 more source

Deep Brain Stimulation Induces Antidepressant Effects by Restoring High‐Fidelity Communication in the BNST‐NAc Circuit

Advanced Science, EarlyView.
This cross‐species study reveals that pathological hyperactivity of BNST neurons in depressive states disrupts inhibitory period and isolated spikes in the BNST‐NAc circuit. DBS achieves its antidepressant effects by precisely restoring network inhibitory periods and high‐fidelity signal transmission.
Xin Lv, Yu Cao, Yuhan Wang, Yunhao Wu, Yingying Zhang, Kuanghao Ye, Xian Qiu, Qingfang Sun, Liuguan Bian, Halimureti Paerhati, Valerie Voon, Shikun Zhan, Bomin Sun   +12 more
wiley   +1 more source

Large-Scale Granger Causality Analysis on Resting-State Functional MRI. [PDF]

Proc SPIE Int Soc Opt Eng, 2016
We demonstrate an approach to measure the information flow between each pair of time series in resting-state functional MRI (fMRI) data of the human brain and subsequently recover its underlying network structure. By integrating dimensionality reduction into predictive time series modeling, large-scale Granger Causality (lsGC) analysis method can ...
DSouza AM, Abidin AZ, Leistritz L, Wismüller A.   +3 more
europepmc   +4 more sources

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

A failed top-down control from the prefrontal cortex to the amygdala in generalized anxiety disorder: Evidence from resting-state fMRI with Granger causality analysis.

Neuroscience Letters, 2019
In generalized anxiety disorder (GAD), abnormal top-down control from the prefrontal cortex (PFC) to the amygdala is a widely accepted hypothesis through which an "emotional dysregulation model" may be explained. However, whether and how the PFC directly
M. Dong, L. Xia, Min Lu, Chao Li, Ke Xu, Lina Zhang   +5 more
semanticscholar   +1 more source

Beyond the Ban—Shedding Light on Smallholders' Price Vulnerability in Indonesia's Palm Oil Industry

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The Indonesian government imposed a palm oil export ban in April 2022 to address rising cooking oil prices. This study explores oil palm smallholders' vulnerability to the policy using descriptive statistics, Lasso, and post‐Lasso OLS regressions.
Charlotte‐Elena Reich, Tim Ölkers, Vanessa Bonke, Oliver Musshoff   +3 more
wiley   +1 more source

Analisis Kausalitas Antara Harga Saham Konvensional Dengan Harga Saham Syariah Di Indonesia (pendekatan granger causality)

El-Jizya: Jurnal Ekonomi Islam, 2018
Stock Price that occur in the share market always fluctuate over time. Stock value fluctuations will be set by the strength of supply and demand. If the supply amount is greater than the amount of demand, generally the exchange stock value will decrease,
Wartoyo Ayus Ahmad Yusuf
doaj   +1 more source