Results 21 to 30 of about 1,450,713 (273)

Dynamics of spinning test particles in Kerr spacetime [PDF]

, 2002
We investigate the dynamics of relativistic spinning test particles in the spacetime of a rotating black hole using the Papapetrou equations. We use the method of Lyapunov exponents to determine whether the orbits exhibit sensitive dependence on initial ...
Hartl, Michael D.
core   +2 more sources

Performance of LAD-LASSO and WLAD-LASSO on High Dimensional Regression in Handling Data Containing Outliers

JTAM (Jurnal Teori dan Aplikasi Matematika), 2022
In several research areas, it is common to have a dataset with more explanatory variables than the number of observations, called high-dimensional data. This condition can lead to multicollinearity problem.
Septa Dwi Cahya, Bagus Sartono, Indahwati Indahwati, Evita Purnaningrum   +3 more
doaj   +1 more source

The role of observability in futures markets [PDF]

, 2006
Allaz (1992) and Allaz and Vila (1993) show that in an oligopolistic industry the introduction of a futures market that operates prior to the spot market induces more competitive outcomes. Hughes and Kao (1997) show that this result presumes that firms’
Ferreira, José Luis
core   +3 more sources

Sources of error in measurement of minimal residual disease in childhood acute lymphoblastic leukemia. [PDF]

PLoS ONE, 2017
The level of minimal residual disease (MRD) in marrow predicts outcome and guides treatment in childhood acute lymphoblastic leukemia (ALL) but accurate prediction depends on accurate measurement.Forty-one children with ALL were studied at the end of ...
Sue Latham, Elizabeth Hughes, Bradley Budgen, Francoise Mechinaud, Catherine Crock, Henry Ekert, Peter Campbell, Alexander Morley   +7 more
doaj   +1 more source

A least squares regression-based approach in the investigation of the influence of density metrics of 14 distinct Toronto neighbourhoods on the roof and facade solar potential

Frontiers in Built Environment, 2023
Introduction: This Toronto-based study explores how density metrics relate to the solar potential of rooftops and facades of buildings in neighbourhoods differentiated by their use classifications. In the context of Toronto’s 2040 Net Zero Strategy, this
Javeriya Hasan, Emily Zheng, Miljana Horvat   +2 more
doaj   +1 more source

The solvation and dissociation of 4-benzylaniline hydrochloride in chlorobenzene [PDF]

, 2014
A reaction scheme is proposed to account for the liberation of 4-benzylaniline from 4-benzylaniline hydrochloride, using chlorobenzene as a solvent at a temperature of 373 K.
Alice A. Miller, Amrute A. P., Archie Eaglesham, Badawi H., Ball D. W., Brock F. H., Burkus J., Cavani F., David Adam, David Lennon, Di Giacomo A., Ding J., Dunlap K. L., Emma K. Gibson, Fogg P. G. T., Freeman R., Frost A. A., Gibson E. K., Gibson E. K., Guéron M., Hevia M. A. G., John M. Winfield, Khairuzzaman A., López N., Mitchell C. J., Mondelli C., Over H., Randall D., Richter R. H., Robert H. Carr, Serajuddin A. T. M., Silkov A. A., Sun S., Sutherland I. W., Tebutt P., Ulrich H., Ulrich H., Yang P. F., Zhang T., Zhang T., Zhang T.   +40 more
core   +1 more source

Arbitrage hedging in markets for the US lean hogs and the EU live pigs

Agricultural Economics (AGRICECON), 2013
The paper describes an attempt to gain insight into the relationship between cash and futures markets for US lean hogs and EU live pigs, and the opportunity of arbitrage hedging.
Martin ZIEGELBÄCK, Gregor KASTNER
doaj   +1 more source

Accuracy of maturity prediction equations in individual elite male football players

Annals of Human Biology, 2020
Background Equations predicting age at peak height velocity (APHV) are often used to assess somatic maturity and to adjust training load accordingly. However, information on the intra-individual accuracy of APHV in youth athletes is not available.
Jan Willem (AJW) Teunissen, Nikki Rommers, Johan Pion, Sean P. Cumming, Roland Rössler, Eva D’Hondt, Matthieu Lenoir, Geert J.P. Savelsbergh, Robert M. Malina   +8 more
doaj   +1 more source

Kappa Number Prediction of Acacia melanoxylon Unbleached Kraft Pulps using NIR-PLSR Models with a Narrow Interval of Variation

BioResources, 2014
A total of 120 Acacia melanoxylon R. Br. (Australian blackwood) stem discs, belonging to 20 trees from four sites in Portugal, were used in this study. The samples were kraft pulped under standard identical conditions targeted to a Kappa number of 15.
António J.A. Santos, Ofélia Anjos, Rogério Simões, José Rodrigues, Helena Pereira   +4 more
doaj   +1 more source

Disturbance and predation risk influence vigilance synchrony of black‐necked cranes Grus nigricollis, but not as strongly as expected

Ecology and Evolution, 2021
Animals monitor surrounding dangers independently or cooperatively (synchronized and coordinated vigilance), with independent and synchronized scanning being prevalent.
Dejun Kong, Anders Pape Møller, Yanyun Zhang   +2 more
doaj   +1 more source