Results 41 to 50 of about 840,543 (302)

Defect‐Engineered Microwave‐Responsive Ni@C Composites From Waste PET for Catalytic Plastic Upcycling

open access: yesAdvanced Materials, EarlyView.
A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu   +7 more
wiley   +1 more source

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

open access: yesAdvanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu   +15 more
wiley   +1 more source

Trends in Progressive Taxation within the European Union: A Research Overview [PDF]

open access: yesAudit Financiar
This research analyses trends in progressive taxation across the European Union (EU) from 2000 to 2024. Using the Web of Science (WoS) database, the methodological approach integrates a co-occurrence of keyword analysis processed through VOSViewer 1.6.20
Maria-Roxana BALEA-STANCIU   +4 more
doaj   +1 more source

Advanced Materials for Biologics Delivery to Brain Tumors

open access: yesAdvanced Materials, EarlyView.
Material innovation is central to unlocking the therapeutic potential of biologics against many central nervous system diseases, including brain cancer. By engineering carriers with controlled transport, targeting, and release properties, advanced materials can overcome the blood–brain barrier and tumor microenvironment, improving the delivery of ...
Yuran Feng   +4 more
wiley   +1 more source

PROBLEMS AND PRINCIPLES OF OPTIMIZING THE SOCIO-ECONOMIC EFFECT OF THE PERSONAL INCOME TAX IN UKRAINE

open access: yesФінансово-кредитна діяльність: проблеми теорії та практики, 2020
. This article is devoted to estimating and explaining the extent of social priority implementation in fiscal policy in Ukraine and defining the reserves, caused by placing the personal income tax in Ukrainian tax system, which would be used to improve ...
I.S. Verkhovod   +4 more
doaj   +1 more source

Individual income tax: New opportunities for management [PDF]

open access: yesУправленец, 2019
The paper discusses the issues of individual income tax due to the effective implementation of its fiscal and social functions. An urgent need for resolving problems of the budget and tax systems in many countries and stimulating economic growth in the ...
Viktor P. Ivanitsky   +2 more
doaj   +1 more source

China's Low‐Carbon Energy Transition Over the Past Two Decades: Experiences and Implications

open access: yesAdvanced Science, EarlyView.
China's low‐carbon energy transition features a brief decline and subsequent rebound in coal consumption, alongside the rapid expansion of renewable energy. This study develops a stage‐based analytical framework to explain this evolution from the perspectives of economic development, energy security, and environmental sustainability, revealing how ...
Yu Liu   +3 more
wiley   +1 more source

Autonomous Solar Metallurgy for High‐Purity Gold Recovery from Electronic Waste

open access: yesAdvanced Science, EarlyView.
Inspired by microbial strategies for metal uptake and biomineralization, defect‐rich copper sulfide (Cu31S16) functions as a solar metallurgical platform that unifies Au(III) capture, reduction, and self‐separation. The bioinspired design enables ultrafast gold recovery from electronic‐waste leachates and the spontaneous formation of millimeter‐scale ...
Chaopeng Liu   +7 more
wiley   +1 more source

Very Progressive Taxation

open access: yes, 2023
Very progressive taxation refers to an even more aggressive or intensified form of progressive taxation. In a very progressive tax system, the tax rates increase significantly with higher income levels. The aim is to create a more substantial difference in tax rates between various income brackets, placing a heavier burden on the wealthiest individuals
openaire   +1 more source

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