Results 101 to 110 of about 2,455 (204)

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

Warming‐Mediated Decreases in Nectar Quality Translate Into Lower Energy Reserves of the Monarch Butterfly (Danaus plexippus)

Global Change Biology Communications, EarlyView.
Warming caused a significant decrease in monarch fat mass, likely due to an observed reduction in sucrose concentration caused by warming of the nectar. Since sucrose fuels fall migration and overwintering, our results suggest climate warming may reduce migration success and overwinter survival.
Katherine Peel, Greg W. Mitchell, Christopher G. Guglielmo, Heather M. Kharouba   +3 more
wiley   +1 more source

Self-sorting systems of photoresponsive polymer micelles: isomerization drives reversible and switchable self-assembly. [PDF]

Chem Sci
Kanno R, Ouchi M, Terashima T.
europepmc   +1 more source

The Versatility of Imidazole and Imidazolium Scaffolds in Sustainable Chemistry and Energy Conversion

Helvetica Chimica Acta, EarlyView.
This review highlights the expanding applications of imidazole‐based compounds in sustainable chemistry and energy technologies. It emphasizes their roles in catalysis, solar cells, and future interdisciplinary strategies for developing advanced functional materials.
Lianghui Li, Shun Tian, Enze Xu, Zhaofu Fei, Paul J. Dyson   +4 more
wiley   +1 more source

All-visible-light-responsive porous aromatic frameworks manipulate CO₂ uptake by reversible bulk isomerization of azobenzene pendants. [PDF]

Proc Natl Acad Sci U S A
Sheng J, Perego J, Bracco S, Cieciórski P, Danowski W, Comotti A, Feringa BL.   +6 more
europepmc   +1 more source

Artificial Neural Networks for Defining the Operational Parameters of Sand Filters for Irrigation

Irrigation and Drainage, EarlyView.
ABSTRACT The difficulty in defining the working configuration during the operation of sand filters arises from the complexity of the relationships among the variables in the filtration and backwashing processes. The objective was to use artificial neural networks to model the pressure loss and removal efficiency of filtration in a commercial sand ...
Mádilo Lages Vieira Passos, Fábio Ponciano de Deus, Evelise Roman Corbalan Góis Freire, Adriano Valentim Diotto, Michael Silveira Thebaldi   +4 more
wiley   +1 more source

First stage in technological production of Stone Age animal teeth pendants: evidence from Zvejnieki (Latvia) and wider social implications. [PDF]

Archaeol Anthropol Sci
Macāne A, Nordqvist K, Mannermaa K, Needham A, Pomstra D, Alcobendas GC, Reblis J, Zagorska I, Little A.   +8 more
europepmc   +1 more source

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

Irrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source

Helix Regulation of Poly(phenylacetylene)s through the Interplay between Enantiomeric Excess and Temperature-Triggered Pendant Isomerization. [PDF]

Precis Chem
Wang D, Li W, Cheng J, Xu X, Chu X, Feng Z, Sheng N, Lin L, Zhang H, Chen X, Zou G.   +10 more
europepmc   +1 more source

A Comparative Study on the Irrigation Suitability of Kerala's Rivers Using Fuzzy AHP and Conventional Methods

Irrigation and Drainage, EarlyView.
ABSTRACT Food security in Kerala depends on effective irrigation, but poor‐quality irrigation water poses threats such as salinity, sodicity and reduced soil productivity. Although past assessments have been localised, this study presents the first comprehensive, statewide evaluation of irrigation water suitability across 44 major rivers in Kerala.
Raji Karuna, S. K. Pramada, Venkataramana Sridhar   +2 more
wiley   +1 more source