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2020

Новости за 02.07.2020

Leverage structure and stock price synchronicity: Evidence from China

Plos.org 

by Xiang Zhang, Han Zhou

This paper investigate the impact of leverage structure on stock price synchronicity. To better understand the mechanism of the impact of leverage, we break leverage into operating leverage and financing leverage. This breakdown reveals the impact of different component of leverage. Moreover, in this paper, we employ the quantile regression model to investigate the impact of leverage on different level of stock price synchronicity, which provides us a more comprehensive picture. Читать дальше...

A comparison of Monte Carlo sampling methods for metabolic network models

Plos.org 

by Shirin Fallahi, Hans J. Skaug, Guttorm Alendal

Reaction rates (fluxes) in a metabolic network can be analyzed using constraint-based modeling which imposes a steady state assumption on the system. In a deterministic formulation of the problem the steady state assumption has to be fulfilled exactly, and the observed fluxes are included in the model without accounting for experimental noise. One can relax the steady state constraint, and also include experimental noise in the model, through a stochastic formulation of the problem. Читать дальше...



Personality traits are directly associated with anti-black prejudice in the United States

Plos.org 

by Chujun Lin, R. Michael Alvarez

Modern psychological theories postulate that individual differences in prejudice are determined by social and ideological attitudes instead of personality. For example, the dual-process motivational (DPM) model argues that personality does not directly associate with prejudice when controlling for the attitudinal variables that capture the authoritarian-conservatism motivation and the dominance motivation. Previous studies testing the DPM model largely relied... Читать дальше...

High-resolution bathymetry by deep-learning-based image superresolution

Plos.org 

by Motoharu Sonogashira, Michihiro Shonai, Masaaki Iiyama

Seafloor mapping to create bathymetric charts of the oceans is important for various applications. However, making high-resolution bathymetric charts requires measuring underwater depths at many points in sea areas, and thus, is time-consuming and costly. In this work, treating gridded bathymetric data as digital images, we employ the image-processing technique known as superresolution to enhance the resolution of bathymetric charts... Читать дальше...

What older adults do with the results of dementia screening programs

Plos.org 

by James E. Galvin, Magdalena I. Tolea, Stephanie Chrisphonte

Introduction

Alzheimer’s disease and related dementias (ADRD) and mild cognitive impairment (MCI) are often under-recognized in the community. MCI/ADRD screening could offer benefits such as early treatment, research participation, lifestyle modification, and advanced care planning. To date, there are no clear guidelines regarding the benefits vs. harms of dementia screening or whether a dementia screening program could be successful. Читать дальше...

Pharmacological inhibition of lysine-specific demethylase 1 (LSD1) induces global transcriptional deregulation and ultrastructural alterations that impair viability in Schistosoma mansoni

Plos.org 

by Vitor Coutinho Carneiro, Isabel Caetano de Abreu da Silva, Murilo Sena Amaral, Adriana S. A. Pereira, Gilbert Oliveira Silveira, David da Silva Pires, Sergio Verjovski-Almeida, Frank J. Dekker, Dante Rotili, Antonello Mai, Eduardo José Lopes-Torres, Dina Robaa, Wolfgang Sippl, Raymond J. Pierce, M. Teresa Borrello, A. Ganesan, Julien Lancelot, Silvana Thiengo, Monica Ammon Fernandez, Amanda Roberta Revoredo Vicentino, Marina Moraes Mourão, Fernanda Sales Coelho, Marcelo Rosado Fantappié

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