Results 101 to 110 of about 112,652 (305)

Inert Catalytic Sites Unlocked by Micropollutants for Rapid Water Decontamination with Near‐Complete Chemical Utilization

open access: yesAdvanced Materials, EarlyView.
Micropollutants can act as molecular triggers that activate a newly designed and chemically inert Fenton‐like PKU‐24 catalyst for on‐demand singlet oxygen generation from peroxymonosulfate (PMS), enabling nearly complete peroxide utilization and selective micropollutant removal from complex real‐world wastewater.
Yu‐Hang Li   +7 more
wiley   +1 more source

Integrating ZnO/Ag2O@g‐C3N4‐Based Nanocomposites Into a Carrageenan Matrix to Efficiently Remove Heavy Metals From Water

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT This research focused on characterizing graphitic carbon nitride (g‐C3N4) nanocomposites incorporated with ZnO and Ag2O nanoparticles, and carrageenan to remove heavy metals. The ZnO/Ag2O@ g‐C3N4 and ZnO/Ag2O/g‐C3N4@Carr nanocomposites demonstrated thermal stability of 97.40% (108.81°C) and 82.80% (188.99°C) for TGA.
Feziwe B. Mamba   +2 more
wiley   +1 more source

Molecular‐Level Insights into Interfacial Adsorption Mechanisms of PFOA on Functional Dolomite Surfaces via AIMD and Spectroscopy

open access: yesAdvanced Materials Interfaces, EarlyView.
Perfluorooctanoic acid (PFOA), ab initio molecular dynamics (AIMD), density functional theory (DFT), Dolomite (DL), metal‐organic frameworks (MOFs), calcined modified dolomite (CDL), zero‐point of charge (PZC), metal‐organic frameworks (MOFs), Fourier transform infrared (FTIR), X‐ray diffraction (XRD), scanning electron microscopy (SEM ...
Yating Yang   +8 more
wiley   +1 more source

A concentração fundiária e as políticas agrárias governamentais recentes [PDF]

open access: yesRevista IDEAS, 2010
This paper discusses the brazilian agrarian structure that in its historic heritage has as essential characteristic the concentration of land in the hands of a small minority, setting the relations of production and work force in the agrarian economy of ...
Lívia Hernandes Carvalho
doaj  

Land grabbing for agro-extractivism in the second neoliberal phase in Brazil

open access: yesRevista NERA, 2019
Building territorial policies to free lands for national and international corporations to produce large-scale commodities for export, called agro-extractivism is one of the components of the neoliberal agrarian question.
Bernardo Mançano Fernandes
doaj   +1 more source

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins   +8 more
wiley   +1 more source

Strong Lateral Confinement of Hydrophilic Silica Nanoparticles on Mg‐Al Layered Double Hydroxides Nanoflakes for Enhanced Thermal Properties

open access: yesAdvanced Materials Interfaces, EarlyView.
A nanostructured, naturally flame‐retardant, and non‐toxic inorganic composite is introduced, which is laterally associated with silica nanoparticles to induce the restacking of the LDH lamella structure, thereby serving as an efficient thermal insulator.
Gayani Pathiraja   +7 more
wiley   +1 more source

O conflito social pela terra na Fazenda Coqueiros: um acerto de contas do latifúndio

open access: yesCiências Sociais Unisinos, 2010
This article analyses the aspects of the agrarian confl ict that has been taking place since 2004 at Coqueiros Farm in Northen Rio Grande do Sul. It is aimed to centralize the juridical sphere negotiation within some of its deliberations as well as the ...
João Carlos Tedesco
doaj  

Light‐Programmable Interfaces: From Molecular Photoswitching to Adaptive Membrane Separations

open access: yesAdvanced Materials Interfaces, EarlyView.
This review advances an interface‐centered framework for light‐responsive membranes, linking molecular photoswitches (azobenzene (AZO), spiropyran (SP), diarylethene (DAE), donor–acceptor Stenhouse adducts (DASA), photoacid) to integration strategies in polymeric, porous, self‐assembled, and mixed‐matrix systems.
Liangliang Zhang   +6 more
wiley   +1 more source

Land reform on multinational corporate plantations in the Philippines : case studies of the application of the comprehensive agrarian reform programme (1988) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Philosophy in Development Studies, Massey University [PDF]

open access: yes, 1993
This thesis examines the implications of a recent agrarian reform programme in the Philippines for multinational corporate (MNC) plantations. Its central purpose is to assess and explain the land tenure consequences of the Comprehensive Agrarian Reform ...
Banks, Tony John
core  

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