Results 151 to 160 of about 66,189 (248)

Theoretical Model of Transient Regression of Thermoplastic Materials During Flame Spread: Vaporization; Permanent Mass Loss; Surface Shape

Fire and Materials, EarlyView.
ABSTRACT This article examines a transient, one‐dimensional model of surface regression during opposed flow flame spread over finite thickness, non‐charring thermoplastics. Gas to solid conductive transfer from the flame drives sample heating. The solid degrades into volatile fuel molecules in two stages: (1) the pre‐vaporization heat‐up stage and (2 ...
Indrek S. Wichman, Linwei Mou, Sarzina Hossain, Fletcher J. Miller, Sandra L. Olson   +4 more
wiley   +1 more source

Causal mediation analysis: selection with asymptotically valid inference. [PDF]

J R Stat Soc Series B Stat Methodol
Jones J, Ertefaie A, Strawderman RL.
europepmc   +1 more source

A Comparison of Realized Measures of Integrated Volatility: Price Duration‐ vs. Return‐Based Approaches

Journal of Forecasting, EarlyView.
ABSTRACT We study the accuracy of a variety of parametric price duration‐based realized variance estimators constructed via various financial duration models and compare their forecasting performance with the performance of various nonparametric return‐based realized variance estimators.
Björn Schulte‐Tillmann, Mawuli Segnon, Timo Wiedemann   +2 more
wiley   +1 more source

Stress Analysis in Single-Lap Adhesive Joints: Comparison of Unreinforced, Reinforced and Prestressed Configurations Assembled with Brittle Structural Adhesives. [PDF]

Materials (Basel)
Marchione F.
europepmc   +1 more source

Coherent Forecasting of Realized Volatility

Journal of Forecasting, EarlyView.
ABSTRACT The QLIKE loss function is the stylized favorite of the literature on volatility forecasting when it comes to out‐of‐sample evaluation and the state of the art model for realized volatility (RV) forecasting is the HAR model, which minimizes the squared error loss for in‐sample estimation of the parameters.
Marius Puke, Karsten Schweikert
wiley   +1 more source

In Vitro Microleakage Comparison of Three Pit-and-Fissure Sealant Protocols: Self-Etch Sealant with and Without Separate Adhesive Versus Conventional Resin-Based Sealants. [PDF]

Biomedicines
Saveanu CI, Sestac A, Anistoroaei D, Saveanu AE, Trandafirescu MF, Saveanu MS, Golovcencu L.   +6 more
europepmc   +1 more source

Projected Warming of the Southern Ocean Disrupts Embryonic Development and Hatch Timing in Antarctic Fish

Global Change Biology Communications, EarlyView.
Embryos are particularly sensitive to thermal challenge. Antarctic fish embryos raised at projected Southern Ocean temperatures hatch during the winter, have a high incidence of morphological abnormalities, have shorter body lengths, and express genes indicative of cellular stress.
Margaret Streeter, Nathalie R. Le François, Thomas Desvignes, Jacob Grondin, John H. Postlethwait, H. William Detrich III, Jacob M. Daane   +6 more
wiley   +1 more source

Application of empirical likelihood ratio test in AR(1) time series model for PM_2.5 forecasting in Guwahati city of Assam. [PDF]

Sci Rep
Serrao V, Poojari S, B I, Rao KA.
europepmc   +1 more source

The Impact of Democratization and Globalization on Environmental Sustainability in Brazil

Geological Journal, EarlyView.
Fossil fuel, economic globalisation, and economic growth drive environmental degradation while democratisation positively influences environmental quality. ABSTRACT Although Brazil still possesses significant ecological reserves, the surplus in its biocapacity has been rapidly declining in recent years.
Mustafa Naimoğlu, Mehmet Metin Dam, Serdar Ongan, Andrew Adewale Alola   +3 more
wiley   +1 more source

A general form of covariate adjustment in clinical trials under covariate-adaptive randomization. [PDF]

Biometrika
Bannick MS, Shao J, Liu J, Du Y, Yi Y, Ye T.   +5 more
europepmc   +1 more source