Results 111 to 120 of about 12,179,068 (306)
Calpain small subunit homodimerization is robust and calcium‐independent
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Almost Consistent Estimation of Panel Probit Models with 'Small' Fixed Effects [PDF]
We propose four different GMM estimators that allow almost consistent estimation of the structural parameters of panel probit models with fixed effects for the case of small T and large N.
Laisney, François, Lechner, Michael
core
Fixed-effects models on children’s behavior problems (weighted).
Fixed-effects models on children’s behavior problems (weighted).
Wei-Jun Jean Yeung (15448989) +1 more
core +1 more source
This study assesses the impact of research and development (R&D) tax incentives on the intensity of business R&D expenditure in Central and Eastern European countries and derives policy implications for Ukraine.
Andriy Stavytskyy, Lina Mukhina
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
A hyperbolic transformation for a fixed effects logit model [PDF]
In this paper, a simple transformation is proposed for the fixed effects logit model, using which some valid moment conditions including the first-order condition for one of the conditional MLE proposed by Chamberlain (1980) can be generated.
Yoshitsugu Kitazawa
core
The Impact of Digital Infrastructure and AI Readiness on SME Dynamism
This study examined the impact of digital infrastructure and AI readiness on SME dynamism across 153 countries during 2010–2022. Using secondary panel data from the World Bank World Development Indicators, the study constructed a complete-case dataset of
Rabail Zareen, Dr. Areesha Javed
doaj +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Semiparametric Fixed-Effects Estimator [PDF]
This paper describes the Stata implementation of Baltagi and Li's (2002) series estimator of partially linear panel data models with fixed effects. After a brief description of the estimator itself, we describe the new command xtsemipar. We then simulate
Fran�ois Libois, Vincenzo Verardi
core
IntroductionIncome inequality is a distal population exposure, and ecological panel data cannot identify individual-level suicide mechanisms. We examined whether within-country changes in national disposable-income inequality were associated with changes
Guoliang Lu, Xinyun Tang, Xinyun Tang
doaj +1 more source

