Results 1 to 10 of about 489,598 (158)

Regionalism on the Run: ASEAN, EU, AU and MERCOSUR Responses Amid the COVID-19 Crisis

open access: yesPartecipazione e Conflitto, 2021
The transnational nature of COVID-19 created expectations of regionally-led initiatives to address this global challenge. The pandemic has transcended health issues accounting for several political and socioeconomic implications.
Daniella da Silva Nogueira de Melo   +1 more
doaj   +1 more source

Photocatalytic degradation of dye wastewater by stepwise assembling PVA aerogel/TiO2/MoS2/Au composites in visible light

open access: yesWater Science and Technology, 2022
A PVA aerogel/TiO2/MoS2/Au catalyst formed gradually using a hydrothermal method is used to degrade Rhodamine B. SEM and TEM results show that the composite presents a uniform and well-structured porous network structure, high specific surface area and ...
Yage Zheng   +7 more
doaj   +1 more source

Complete Benzene Oxidation over Mono and Bimetallic Pd—Au Catalysts on Alumina-Supported Y-Doped Ceria

open access: yesApplied Sciences, 2020
The protection of environment and human health stimulates intensive research for abatement of volatile organic compounds (VOCs) in the atmosphere. Complete catalytic oxidation is an efficient, environmentally friendly and economically feasible method for
Tatyana Tabakova   +6 more
doaj   +1 more source

Fluorescent imaging and bio-cellular uptake assessment of gold-near infrared dye conjugated cockle shell calcium carbonate nanoparticle [PDF]

open access: yesIraqi Journal of Veterinary Sciences
In recent years, fluorescent imaging has emerged as an active area of interest in medical imaging. Fluorescent imaging plays a critical role in molecular imaging.
Hanan K. Kiranda   +3 more
doaj   +1 more source

NEAR-ABSOLUTE EQUATIONS OF STATE OF DIAMOND, Ag, Al, Au, Cu, Mo, Nb, Pt, Ta, AND W FOR QUASI-HYDROSTATIC CONDITIONS

open access: yesГеодинамика и тектонофизика, 2015
Using the modified formalism of [Dorogokupets, Oganov, 2005, 2007], equations of state are developed for diamond, Ag, Al, Au, Cu, Mo, Nb, Pt, Ta, and W by simultaneous optimization of shock-wave data, ultrasonic, X-ray, dilatometric and thermochemical ...
Peter I. Dorogokupets   +3 more
doaj   +1 more source

Влияние модифицирующих добавок Pd, Pt и Au на сенсорные свойства SnO2 и In2O3 при определении паров ацетона

open access: yesЖурнал Белорусского государственного университета: Химия, 2023
Исследованы свойства планарных сенсоров на основе синтезированных нанопорошков диоксида олова и оксида индия при определении паров ацетона. Полученные сенсоры показали высокую чувствительность к низким концентрациям ацетона во влажной среде, моделирующим
Евгений Андреевич Оводок   +4 more
doaj  

A Comparative Analysis of the Charter of the Organization of African Unity (OAU) and the Constitutive Act of the African Union (AU)

open access: yesGroningen Journal of International Law, 2019
This article takes a critical look at comparative analysis of the Charter of the Organization of African Unity (OAU) and the Constitutive Act of the African Union (AU). In doing so, the article will compare the organs and institutions of both the OAU and
Joel Adelusi Adeyeye
doaj   +1 more source

Mineral-geochemical characteristics Cu-U-Au-manifestations in the Kon Ra region of the Kon Tum province, Vietnam

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2020
Background. Complex Au-Cu-U mineralization is found in the metamorphic rocks of central Vietnam in the zones of their contact with Triassic granite intrusions.
Minh Phuong Do   +4 more
doaj   +1 more source

Six Decades of African Integration: Successes and Failures [PDF]

open access: yesУченые записки Института Африки Российской академии наук
The African Union (AU), with antecedent Organisation of African Unity (OAU), is now six decades old, and its sub-regional affiliates, such as the Economic Community of West African States (ECOWAS), the Southern African Development Community (SADC), and ...
Gottschalk Keith
doaj   +1 more source

UN Peacekeeping in Africa: Nature, Scope and Development

open access: yesVestnik RUDN. International Relations, 2023
The hybrid nature and scope of contemporary conflicts, the terrorism threat, and the dramatic increase in competition for resources, global militarization and security challenges in Africa do not only carry the risk of state collapse, but have ...
Svetlana A. Bokeriya   +1 more
doaj   +1 more source

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