Results 111 to 120 of about 42,411 (276)
Skew polynomial rings of formal triangular matrix rings
Journal of Algebra, 2012 Let \(R\) be a ring and \(\alpha\) be a ring endomorphism of \(R\). Recall that an \(\alpha\)-derivation of \(R\) is an additive map \(\delta\colon R\to R\) such that \(\delta(ab)=\alpha(a)\delta(b)+\delta(a)b\) for all \(a,b\in R\). Denote by \(R[x;\alpha,\delta]\) the skew polynomial ring over \(R\), whose elements are the polynomials over \(R\) of \(
openaire +2 more sources
International Journal of Applied Linguistics, EarlyView.ABSTRACT Previous research has established the relationships between motivation, anxiety, teachers’ support, and self‐regulated learning (SRL) in English‐as‐a‐foreign‐language (EFL) learning. Most of the studies, however, have taken a variable‐centered approach in addressing the variable correlations, while learners’ characteristics and variable links ...
Yuhong Jiao, Barry Bai, Jing Li
wiley +1 more source
Specification Tests for Jump‐Diffusion Models Based on the Characteristic Function
International Statistical Review, EarlyView.Summary Goodness‐of‐fit tests are suggested for several popular jump‐diffusion processes. The suggested test statistics utilise the marginal characteristic function of the model and its L2‐type discrepancy from an empirical counterpart. Model parameters are estimated either by minimising the aforementioned L2‐type discrepancy or by maximum likelihood ...
Gerrit Lodewicus Grobler +3 more
wiley +1 more source
Journal of Advanced Nursing, EarlyView.ABSTRACT Aims To identify latent profiles of insomnia, fatigue, recovery, psychological distress and burnout among hospital nurses; examine variations in personal and work‐related characteristics across profiles; investigate associations between profiles and outcomes such as patient care quality, nursing work satisfaction and workplace satisfaction ...
Hyeonmi Cho +2 more
wiley +1 more source
Journal of Money, Credit and Banking, EarlyView.Abstract Using confidential daily data, we examine the Bank of Israel's foreign exchange interventions from 2013 to 2019. We find that a 1 billion U.S. dollars (USD) purchase leads to a 0.82% depreciation of the Israeli Shekel (ILS)–a strong effect compared to other studies.
MARKUS HERTRICH, DANIEL NATHAN
wiley +1 more source
Journal of Neuropsychology, EarlyView.Abstract Artificial intelligence (AI) and machine learning (ML) algorithms are revolutionising the world, and they have the potential to revolutionise neuropsychology as well. A particularly fruitful field for this revolution is the cognitive assessment of neurodegenerative disorders, such as Alzheimer's disease, Parkinson's disease, Mild Cognitive ...
Michele Scandola +3 more
wiley +1 more source
Do robots boost productivity? A quantitative meta‐study
Journal of Economic Surveys, EarlyView.ABSTRACT This meta‐study analyzes the productivity effects of industrial robots. More than 1800 estimates from 85 primary studies are collected. The meta‐analytic evidence suggests that robotization has so far provided, at best, a small boost to productivity. There is strong evidence of publication bias in the positive direction.
Florian Schneider
wiley +1 more source
Journal of Economic Surveys, EarlyView.ABSTRACT This paper reviews how large‐scale mobility data can enhance economic analyses, highlighting its contributions to understanding travel behavior, labor markets, social interactions, and health outcomes. We discuss its advantages over traditional mobility data sources, which include real‐time location information and fine spatial resolution ...
Cristina Connolly +3 more
wiley +1 more source
The Determinants of Negotiated Pharmaceutical Prices
The Journal of Industrial Economics, EarlyView.ABSTRACT We focus on the determinants of pharmaceutical drug prices. Using data from the Brazilian pharmaceutical market, we find large variations in drug prices across buyers, drug classes, and time periods. Our estimation results provide evidence that transaction‐specific determinants between buyers and sellers (e.g., transaction volume, buyer's ...
Ralph B. Siebert +2 more
wiley +1 more source
Journal of Management Studies, EarlyView.Abstract Previous work on legitimacy has conceptualized its multi‐level nature, encompassing individual‐level propriety and collective‐level validity. Recently, scholars have introduced the construct of consensus, the degree to which evaluators agree in terms of their propriety beliefs.
Patrick Haack +2 more
wiley +1 more source