Results 101 to 110 of about 456,020 (289)

Ciclos econômicos na taxa de crescimento do ICMS

open access: yesEconomia Aplicada, 2009
O objetivo principal deste trabalho é investigar a existência e as principais características de ciclos econômicos na taxa de crescimento do ICMS. Para alcançar esse objetivo, modelos de mudança de regime de Markov e com efeito limiar (threshold) foram ...
Roberto Tatiwa Ferreira
doaj  

Functionalized Organic Lithium Salt Enables Flexible Solid‐State Electrolytes With Dual‐Ion Channels for Safe Li Metal Batteries

open access: yesCarbon Energy, EarlyView.
Here, we design a flexible and non‐flammable solid‐state electrolyte with hierarchical dual‐ion conductive channels. The engineered electrolyte combines continuous organic conductive‐phase pathways for fast bulk Li+ transport and dynamic polymer networks for interfacial ion hopping, achieving unprecedented room temperature conductivity (> 1 mS cm−1 ...
Yijing Liu   +7 more
wiley   +1 more source

Aprimoramento do Índice de Segurança Hídrica da ANA

open access: yesRevista de Gestão de Água da América Latina
A segurança hídrica é ampla, ainda assim tem sido modelada como sinônimo de escassez hídrica. No Brasil, a ANA criou o Índice de Segurança Hídrica (ISH) que seguiu este mesmo viés.
Daniel Ben-Hur Silva de Oliveira   +2 more
doaj  

Performance of Indian commercial banks (1995-2002): an application of data envelopment analysis and Malmquist productivity index [PDF]

open access: yes
This paper investigates efficiency using data envelopment analysis (DEA) and productivity growth using Malmquist index in a sample of Indian commercial banks over the period 1995-2002.
Don U.A. Galagedera   +1 more
core  

Amine‐Triggered Azabenz‐Annulation of Cyclic Secondary Amine‐Functionalized Perylene Diimides for Dual‐Mode Sensing

open access: yesChemistry – A European Journal, EarlyView.
Pictet‐Spengler Intermediate of a cyclic secondary amine perylene diimide undergoing amine‐triggered conversion to azabenz‐annulated perylene diimide, inducing a high‐contrast green‐to‐yellow color change along with fluorescence turn‐on, demonstrating intuitive “safe” to “warning” dual‐mode sensing.
Irene E. Park   +2 more
wiley   +1 more source

Asymptotics and Consistent Bootstraps for DEA Estimators in Non-parametric Frontier Models [PDF]

open access: yes
Non-parametric data envelopment analysis (DEA) estimators based on linear programming methods have been widely applied in analyses of productive efficiency.
Alois Kneip   +2 more
core  

A Strategic Action Plan to Advance Circular Economy Practices in the Automotive Industry Based on Sector Insights to Support Sustainable Development

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The circular economy is gaining traction as a transformative approach to address climate change and the shortcomings of the linear economic model, which is defined by unsustainable production and consumption patterns. This study explores the implementation of circularity principles in the Spanish automotive industry, with particular attention ...
Salvador Perez‐Canto   +2 more
wiley   +1 more source

Quantitative selection of hedge funds using data envelopment analysis [PDF]

open access: yes
Previous studies have documented that Data Envelopment Analysis(DEA) could be a good tool to evaluate fund performance,especially the performance of hedge funds as it can incorporatemultiple risk-return attributes characterizing hedge fund's nonnormal ...
Huyen Nguyen-Thi-Thanh
core  

Tracking Climate and Environmental Attention: A News‐Based Composite Index

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study introduces the Climate and Environmental Attention Index, a composite indicator that tracks media attention to climate and environmental issues. Based on the Semantic Brand Score, the proposed index extracts significant signals from unstructured text, going beyond traditional measures of word frequency and sentiment.
Gianna Figà‐Talamanca   +3 more
wiley   +1 more source

Production of Panicum maximum cv. Mombaça Under Fertilization Management and Ozonation of Irrigation Water

open access: yesGrasses
Ozonation of irrigation water is a promising technology that improves the efficiency of irrigation systems. However, it is necessary to investigate the potential adverse effects of the continuous application of this technology on pastures, particularly ...
Wesley Lopes Cançado   +6 more
doaj   +1 more source

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