Results 31 to 40 of about 879,913 (298)

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Efficient Market Hypothesis in South Africa: Evidence from Linear and Nonlinear Unit Root Tests [PDF]

Managing Global Transitions, 2015
This study investigates the weak form efficient market hypothesis (EMH) for five generalized stock indices in the Johannesburg Stock Exchange (JSE) using weekly data collected from 31st January 2000 to 16th December 2014.
Andrew Phiri
doaj  

Smooth transitions, asymmetric adjustment and unit roots [PDF]

, 2012
The aim of this paper is to develop a unit root test that takes into account two sources of nonlinearites in data, i.e. asymmetric speed of mean reversion and structural changes. The asymmetric speed of mean reversion is modeled by means of a exponential
Cuestas, J.C., Ordóñez, J.
core  

UNIT ROOTS IN PERIODIC AUTOREGRESSIONS [PDF]

Journal of Time Series Analysis, 1996
Abstract. This paper analyzes the presence and consequences of a unit root in periodic autoregressive models for univariate quarterly time series. First, we consider various representations of such models, including a new parametrization which facilitates imposing a unit root restriction.
Boswijk, H.P., Franses, P.H.
openaire   +3 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Automorphisms of Ideals of Polynomial Rings [PDF]

, 2016
Let $R$ be a commutative integral domain with unit, $f$ be a nonconstant monic polynomial in $R[t]$, and $I_f \subset R[t]$ be the ideal generated by $f$. In this paper we study the group of $R$-algebra automorphisms of the $R$-algebra without unit $I_f$.
de Mello, Thiago Castilho, Macedo, Tiago
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Growing aridity poses threats to global land surface

Communications Earth & Environment
Global warming has impacted water cycle, but not exist a global study of the changes at global scale of the impacts on water available for plants. Here, cloud-optimized monthly aggregated climate reanalysis from the European Centre for Medium-Range ...
Jordi Sardans, Albert Miralles, Akash Tariq, Fanjiang Zeng, Rong Wang, Josep Peñuelas   +5 more
doaj   +1 more source

Economic convergence of Balkan regions towards EU

Journal of Applied Economics
This paper analyzes convergence of per capita Gross Domestic Product (GDP) of Balkan NUTS3 regions to average GDP of the EU27. Employing stochastic and [Formula: see text]-convergence approaches, we find strong evidence supporting convergence across the ...
María A. González-Álvarez, Antonio Montañés, Esther Ruiz, Skender Uku   +3 more
doaj   +1 more source

The Relationship between Income, Consumption and GDP of Asian Countries: A Panel Analysis [PDF]

Managing Global Transitions, 2019
This paper attempts to scrutinize the co-integration relationship between consumption, income and GDP per capita in panel data series. We have applied unit root test, co-integration test and FMOLS estimation technique to analyze the data.
Sima Rani Dey
doaj   +1 more source