Results 71 to 80 of about 1,917,152 (312)
A Solid State \u3csup\u3e13\u3c/sup\u3eC-NMR Study of Diamonds and Graphites [PDF]
, 1978 The 13C-NMR spectra of gem quality and industrial diamonds show two resonances with the more intense resonance at high field. Two resonances are also shown in 13C-NMR spectra of various graphites; however, the low field resonance is of greater intensity ...
Ehlert, Thomas C. +2 more
core +1 more source
EcoEnergy, EarlyView.A tailored‐defect strategy employing sequential high‐temperature calcination and acetylacetone treatment was developed to generate framework defects in NaY zeolite while preventing the formation of strong acid sites. These defects facilitate electron transfer from Pd to the zeolite framework and stabilize the Pd2+ active sites, thereby conferring ...
Chunzheng Wang +9 more
wiley +1 more source
Extremalis problémák többváltozós és súlyozott polinomokra = Extremal problems for multivariate and weighted polynomials [PDF]
, 2009 Jól ismert hogy a többváltozós polinomok sűrűek a d-dimenziós kompakt halmazokon folytonos függvények terében. A többváltozós polinomok egy fontos részhalmaza a homogén polinomok osztálya.
Kroó, András, Szabados, József
core
Number sense : the underpinning understanding for early quantitative literacy [PDF]
, 2012 The fundamental meaning of Quantitative Literacy (QL) as the application of quantitative knowledge or reasoning in new/unfamiliar contexts is problematic because how we acquire knowledge, and transfer it to new situations, is not straightforward.
MacLellan, Effie
core +4 more sources
Ecography, EarlyView.Global change is reshaping the distribution of biodiversity and the functioning of ecosystems. Predicting the long‐term consequences of such changes remains a challenge due to a need for a clear understanding of the mechanisms underpinning ecosystem‐level responses, as well as the role of geographical and environmental contingencies.
Miguel G. Matias +15 more
wiley +1 more source
La historia como ficción y la ficción como historia. Vargas Llosa y Mayta
Nueva Revista de Filología Hispánica, 1987 En este número no se incluyeron resúmenes ni palabras clave.
Susana Reisz de Rivarola
doaj +1 more source
The Moral Argument, Existential Problems of Evil, and a Non-Existential Alternative [PDF]
, 2019 Within this paper, it is shown that certain ethical assumptions are implicit within the claim that certain kinds of evil exist. When taken in tandem with the moral argument for the existence of God, these assumptions can be arranged in such a way as to ...
Smith, Jonathan
core +1 more source
Frontiers in EEG as a tool for the management of pediatric epilepsy: Past, present, and future
Epilepsia Open, EarlyView.Abstract Electroencephalography (EEG) has evolved into an indispensable tool in pediatric epilepsy, fundamentally transforming the diagnosis, classification, and management of this condition. This review chronicles the historical journey of EEG from its groundbreaking inception to its current pivotal role in delineating distinct pediatric epilepsy ...
Hiroki Nariai
wiley +1 more source
Self-Organizing Information Fusion and Hierarchical Knowledge Discovery: A New Framework Using Artmap Neural Networks [PDF]
, 2004 Classifying novel terrain or objects from sparse, complex data may require the resolution of conflicting information from sensors woring at different times, locations, and scales, and from sources with different goals and situations.
Carpenter, Gail +2 more
core +1 more source
Lost in Translation? Risk‐Adjusting RMSE for Economic Forecast Performance
Journal of Forecasting, EarlyView.ABSTRACT When used for parameter optimization and/or model selection, traditional mean squared error (MSE)–based measures of forecast accuracy often exhibit a weak or even negative correlation with the economic value of return forecasts measured by, for example, the Sharpe ratios of the resulting portfolios.
Lukas Salcher +2 more
wiley +1 more source